US20080070721A1 - Weight-adjustable golf club head provided with rear lightweight covering - Google Patents

Weight-adjustable golf club head provided with rear lightweight covering Download PDF

Info

Publication number
US20080070721A1
US20080070721A1 US11/523,640 US52364006A US2008070721A1 US 20080070721 A1 US20080070721 A1 US 20080070721A1 US 52364006 A US52364006 A US 52364006A US 2008070721 A1 US2008070721 A1 US 2008070721A1
Authority
US
United States
Prior art keywords
club head
golf club
weight
covering
lightweight covering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/523,640
Inventor
Cheng-Jin Chen
Chiu-Hong Tsai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fu Sheng Industrial Co Ltd
Original Assignee
Fu Sheng Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fu Sheng Industrial Co Ltd filed Critical Fu Sheng Industrial Co Ltd
Priority to US11/523,640 priority Critical patent/US20080070721A1/en
Assigned to FU SHENG INDUSTRIAL CO., LTD. reassignment FU SHENG INDUSTRIAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, CHENG-JIN, TSAI, CHIU-HONG
Publication of US20080070721A1 publication Critical patent/US20080070721A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/045—Strengthening ribs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0466—Heads wood-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/047—Heads iron-type
    • A63B53/0475—Heads iron-type with one or more enclosed cavities
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/02—Ballast means for adjusting the centre of mass
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B2053/0491—Heads with added weights, e.g. changeable, replaceable
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0437—Heads with special crown configurations

Definitions

  • the present invention relates to a weight-adjustable golf club head provided with a rear lightweight covering.
  • the present invention relates to the rear lightweight covering of the golf club head made from a low specific gravity metal.
  • the present invention also relates to the rear lightweight covering of the golf club head having an inner surface formed with reinforcing ribs.
  • a conventional golf club head as described in U.S. Pat. No. 6,783,465, entitled “GOLF CLUB HEAD,” includes a golf club head body and a striking plate.
  • the golf club head body has a front portion, a crown portion and a sole portion. Furthermore, the golf club head body includes a heel side portion and a toe side portion opposite thereto.
  • the striking plate is connected with the front portion of the golf club head body. To enhance elastic deformability, a series of recessed grooves are provided on the crown portion of the golf club head.
  • each of the recessed grooves extends along a club-head-width direction from the heel side portion and the toe side portion of the crown portion; namely, each of the recessed grooves is arranged to extend along the direction substantially parallel to a horizontal reference line of the striking plate.
  • Such a structure of the recessed groove can enhance the deformability of the golf club head body while impacting a golf ball.
  • a series of protruded ribs are provided on the sole portion of the golf club head body so as to reinforce structural strength.
  • the protruded ribs can lower a center of gravity of the golf club head body for enhancing stability in striking the golf ball. Accordingly, the hitting characteristics of such a structure of the golf club head are enhanced.
  • the crown portion of the golf club head body has a total thickness greater than a depth of the recessed groove provided thereon.
  • these recessed grooves can be successful in enhancing elastic deformability of the crown portion of the golf club head body, a number of design limitations exist for lowering the center of gravity of the golf club head body due to difficulties in manufacture.
  • a design-limiting problem due to a depth of the recessed groove is an increase of the thickness of the crown portion.
  • Another problem with providing the recessed groove is the difficulty in increasing the strength of the crown portion.
  • the crown portion is susceptible to distortion or crack due to an ultimately thin thickness of the crown portion existing right in the recessed groove.
  • Another problem with the direction of extending the recessed groove across the golf club head width is susceptible to weakening the entire structure of the golf club head body. Furthermore, another problem occurring during impacting the golf ball is a loss of the adequately elastic deformability of the crown portion due to the stress transmitting in a front-to-rear direction of the golf club head.
  • the present invention intends to provide a weight-adjustable golf club head provided with a rear lightweight covering which is made from a low specific gravity metal so as to reduce weight of a crown portion and a rear portion of the golf club head.
  • the rear lightweight covering has a rear crown portion and a rear wall portion to combine with a golf club head body which has a striking plate and a sole portion.
  • the rear lightweight covering reduces the entire weight and simplifies the entire structure of the golf club head in such a way as to mitigate and overcome the above problem.
  • the primary objective of this invention is to provide a weight-adjustable golf club head provided with a rear lightweight covering which has a relatively thin thickness and is made from a low specific gravity metal.
  • the rear lightweight covering has an extension to form a rear wall portion. Accordingly, the rear lightweight covering can lower the center of gravity and reduce the weight of the golf club head.
  • the secondary objective of this invention is to provide a weight-adjustable golf club head provided with the rear lightweight covering.
  • the rear lightweight covering is integrally formed with a rear crown portion and a rear side wall portion, and is combined with a golf club head body which is designed to integrally form with a striking face and a sole portion. Accordingly, the rear lightweight covering can simplify the entire structure of the golf club head.
  • Another objective of this invention is to provide a weight-adjustable golf club head provided with the rear lightweight covering.
  • the rear lightweight covering has an inner surface formed with reinforcing ribs. Accordingly, the rear lightweight covering can lower the center of gravity and enhance the strength of the golf club head.
  • Another objective of this invention is to provide a weight-adjustable golf club head provided with the rear lightweight covering which has an inner surface formed with reinforcing ribs which extend along a front-to-rear direction of the golf club head. Accordingly, the rear lightweight covering with such reinforcing ribs can enhance elastic deformability of the golf club head in impacting a golf ball.
  • the weight-adjustable golf club head in accordance with an aspect of the present invention includes a rear lightweight covering and a golf club head body combined therewith.
  • the rear lightweight covering has a rear crown portion and a rear wall portion extended therefrom.
  • the golf club head body is combined with the rear lightweight covering which is designed to have a striking face, a front crown portion and a sole portion.
  • the rear lightweight covering is made from a low specific gravity metal, and is designed to have a thickness less than 0.6 mm.
  • the rear lightweight covering has an inner surface formed with a plurality of reinforcing ribs.
  • the reinforcing ribs extend along a front-to-rear direction of the golf club head.
  • the reinforcing rib adjacent to a center portion of the rear crown portion of the rear lightweight covering has a greater length.
  • the reinforcing ribs are formed on an outer surface of the rear lightweight covering.
  • FIG. 1 is an exploded perspective view illustrating a weight-adjustable golf club head having a rear sectional lightweight covering in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a top elevational view illustrating the weight-adjustable golf club head combined with the rear sectional lightweight covering in accordance with the preferred embodiment of the present invention.
  • FIG. 3 is a cross-sectional view, taken along line 3 - 3 in FIG. 2 , illustrating the weight-adjustable golf club head combined with the rear sectional lightweight covering in accordance with the preferred embodiment of the present invention.
  • FIGS. 1 through 3 views of a weight-adjustable golf club head in accordance with the preferred embodiment of the present invention are illustrated.
  • the golf club head utilized in practicing the preferred embodiment of the present invention can be selected from several types.
  • the golf club head utilized in practicing this illustrated embodiment of the present invention is selected from a driver or a wood-type club head.
  • the weight-adjustable golf club head in accordance with the preferred embodiment of the present invention includes a rear lightweight covering designated numeral 1 and a golf club head body designated numeral 2 .
  • the rear lightweight covering 1 is designed to connect with a rear portion of the golf club head body 2 so as to constitute the golf club head.
  • the rear lightweight covering 1 is made from a relatively low specific gravity metal selected from the group consisting of titanium alloy, Fe-Mn-Al alloy, aluminum alloy and magnesium alloy etc.
  • the rear lightweight covering 1 is designed to have a relatively thin thickness, preferably less than 0.6 mm, so as to reduce the total weight of the golf club head and to minimize the dimensions thereof.
  • the golf club head body 2 is made from a relatively high specific gravity metal selected from the group consisting of carbon steel, low-carbon steel, maraging steel, cast iron, nickel-based alloy and structural alloy etc.
  • the weight of the golf club head body 2 may be several times higher than that of the rear lightweight covering 1 .
  • the ratio may be specifically grown due to the fact that the rear lightweight covering 1 has a relatively thin thickness, preferably less than 0.6 mm.
  • the golf club head body 2 can specifically lower the center of gravity of the golf club head.
  • the rear lightweight covering 1 is integrally formed with a rear crown portion 11 , a rear wall portion 12 and a plurality of reinforcing ribs 13 .
  • the rear crown portion 11 has a crown-connecting periphery (unlabeled) while the rear wall portion 13 has a wall-connecting periphery (unlabeled).
  • the rear crown portion 11 extends downwardly from the rear crown portion 11 .
  • the crown-connecting periphery is integrally formed from the wall-connecting periphery so as to form a first connecting periphery.
  • the crown-connecting periphery has a crown-assembling edge 111 located at a front upper portion of the rear crown portion 11 .
  • the wall-connecting periphery has wall-assembling edges 121 located at upright portions of the rear wall portion 12 , and a bottom-assembling edge 122 located at a lower portion of the rear wall portion 12 .
  • the reinforcing ribs 13 are provided and protruded on an inner surface thereof, and extended in a front-to-rear direction of the golf club head.
  • the reinforcing ribs 13 are integrally formed on the inner surface of the rear lightweight covering 1 by means of stamping operation.
  • the reinforcing ribs 13 are parallel each other.
  • the reinforcing ribs 13 are formed by means of an etching process. Accordingly, it would be advantageous that the rear lightweight covering 1 is not susceptible to distortion or crack during impacting a golf ball.
  • the reinforcing rib 13 adjacent to a center portion of the rear crown portion 11 of the rear lightweight covering 1 has a greater length with respect to the front-to-rear direction.
  • the reinforcing rib 13 arranged beyond the center portion of the rear crown portion 11 of the rear lightweight covering 1 has a shorter length.
  • the number of the reinforcing ribs 13 provided in practicing the present invention may not affect the elastic deformability of the rear lightweight covering 1 .
  • reinforcing ribs 13 are provided on an outer surface of the rear crown portion 11 of the rear lightweight covering 1 without departing from the present invention.
  • the golf club head body 2 is integrally formed with a striking face 21 , a front crown portion 22 and a sole portion 23 .
  • the striking face 21 is integrally connected between the front crown portion 22 and the sole portion 23 .
  • the striking face 21 is separately fabricated and then combined with the golf club head body 2 .
  • the front crown portion 22 has a crown-connecting periphery (unlabeled) while the sole portion 23 has a sole-connecting periphery (unlabeled).
  • the crown-connecting periphery is integrally formed from the sole-connecting periphery so as to form a second connecting periphery.
  • the second connecting periphery of the golf club head body 1 mechanically connects with the first connecting periphery of the rear lightweight covering 1 when assembled.
  • the crown-connecting periphery has a crown-assembling edge 221 located at a rear upper portion of the front crown portion 22 , and further extends downwardly to form wall-assembling edges 222 .
  • the sole-connecting periphery has a sole-assembling edge 231 located at a rear portion of the sole portion 23 .
  • the golf club head body 2 further includes a hose 124 arranged at a neck portion adjacent the heel so as to receive a club shaft (not shown).
  • the rear lightweight covering 1 occupies a specific volume of the golf club head. Yet further, the rear lightweight covering 1 varies in shape and thickness in adjusting the center of gravity of the golf club head according to the design need. The rear lightweight covering 1 , however, shares a lower amount of weight to lower the center of gravity of the golf club head.
  • the golf club head body 2 also varies in weight in adjusting the center of gravity of the golf club head according to the design need. It is also apparent from FIG. 1 that the golf club head body 2 varies in volume or weight but it shares a higher amount of weight of the golf club head.
  • the first connecting periphery of the rear lightweight covering 1 is aligned with the second connecting periphery of the golf club head body 2 .
  • the crown-assembling edge 111 of the rear lightweight covering 1 is engaged with the crown-assembling edge 221 of the golf club head body 2 ;
  • the wall-assembling edges 121 of the rear lightweight covering 1 are engaged with the wall-assembling edges 222 of the golf club head body 2 ;
  • the bottom-assembling edge 122 is engaged with the sole-assembling edge 231 of the golf club head body 2 .
  • the connecting operation in practicing the present invention may be performed by means of welding, braze welding, adhesive or screw-connection. It would be advantage that the stress impacted on the striking face 21 cannot damage the rear lightweight covering 1 due to the fact that such an arrangement separates the entire structure of the rear lightweight covering 1 from the striking face 21 of the golf club head body 2 .
  • the rear lightweight covering 1 is designed to have a thickness less than 0.6 mm except the reinforcing ribs 13 so that it performs a high degree of elastic deformability in impacting the golf ball. Additionally, since the rear lightweight covering 1 is made from a relatively low specific gravity metal, the center of gravity of the golf club head is shifted and adjusted in manufacture. It would be advantage that the strength of the rear lightweight covering 1 is increased due to that the reinforcing ribs 13 of the rear lightweight covering 1 extend along the front-to-rear direction of the golf club head in which the stress impacted on the striking face 21 of the golf club head body 2 is transmitted. More importantly, the reinforcing ribs 13 are successful in reinforcing the thin thickness of the rear lightweight covering 1 even though the thickness of the rear lightweight covering 1 is less than 0.6 mm.
  • the rear lightweight covering 1 of the present invention can provide a high degree of elastic deformability in the crown portion of the golf club head body 2 .
  • a set of the reinforcing ribs 13 extended in the front-to-rear direction can reinforce the thin thickness of the rear lightweight covering 1 in striking the golf ball.

Abstract

A weight-adjustable golf club head includes a rear lightweight covering and a golf club head body combined therewith. The rear lightweight covering has a rear crown portion and a rear wall portion extended therefrom. The golf club head body is combined with the rear lightweight covering which is designed to have a striking face, a front crown portion and a sole portion. The rear lightweight covering is made from a low specific gravity metal, and is designed to have a thickness less than 0.6 mm. The rear lightweight covering has an inner surface formed with a plurality of reinforcing ribs.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a weight-adjustable golf club head provided with a rear lightweight covering. Particularly, the present invention relates to the rear lightweight covering of the golf club head made from a low specific gravity metal. More particularly, the present invention also relates to the rear lightweight covering of the golf club head having an inner surface formed with reinforcing ribs.
  • 2. Description of the Related Art
  • A conventional golf club head, as described in U.S. Pat. No. 6,783,465, entitled “GOLF CLUB HEAD,” includes a golf club head body and a striking plate. The golf club head body has a front portion, a crown portion and a sole portion. Furthermore, the golf club head body includes a heel side portion and a toe side portion opposite thereto. The striking plate is connected with the front portion of the golf club head body. To enhance elastic deformability, a series of recessed grooves are provided on the crown portion of the golf club head. In this case, each of the recessed grooves extends along a club-head-width direction from the heel side portion and the toe side portion of the crown portion; namely, each of the recessed grooves is arranged to extend along the direction substantially parallel to a horizontal reference line of the striking plate. Such a structure of the recessed groove can enhance the deformability of the golf club head body while impacting a golf ball.
  • In addition to this, a series of protruded ribs are provided on the sole portion of the golf club head body so as to reinforce structural strength. However, there would be further advantageous that the protruded ribs can lower a center of gravity of the golf club head body for enhancing stability in striking the golf ball. Accordingly, the hitting characteristics of such a structure of the golf club head are enhanced.
  • In general, such an arrangement of the golf club head body has several drawbacks. For example, the crown portion of the golf club head body has a total thickness greater than a depth of the recessed groove provided thereon. Although these recessed grooves can be successful in enhancing elastic deformability of the crown portion of the golf club head body, a number of design limitations exist for lowering the center of gravity of the golf club head body due to difficulties in manufacture. A design-limiting problem due to a depth of the recessed groove is an increase of the thickness of the crown portion. However, it would be disadvantageous to provide a thinner thickness of the crown portion and to lower the center of gravity of the golf club head body.
  • Another problem with providing the recessed groove is the difficulty in increasing the strength of the crown portion. During use of the golf club head body in impacting the golf ball, the crown portion is susceptible to distortion or crack due to an ultimately thin thickness of the crown portion existing right in the recessed groove. By way of example, there is a need to provide means for reinforcing the thin-thickness portion of the crown portion if the thickness is less than 0.6 mm. Hence, there is a need for improving the crown portion of the golf club head body.
  • Another problem with the direction of extending the recessed groove across the golf club head width is susceptible to weakening the entire structure of the golf club head body. Furthermore, another problem occurring during impacting the golf ball is a loss of the adequately elastic deformability of the crown portion due to the stress transmitting in a front-to-rear direction of the golf club head.
  • As is described in greater detail below, the present invention intends to provide a weight-adjustable golf club head provided with a rear lightweight covering which is made from a low specific gravity metal so as to reduce weight of a crown portion and a rear portion of the golf club head. The rear lightweight covering has a rear crown portion and a rear wall portion to combine with a golf club head body which has a striking plate and a sole portion. The rear lightweight covering reduces the entire weight and simplifies the entire structure of the golf club head in such a way as to mitigate and overcome the above problem.
    • SUMMARY OF THE INVENTION
  • The primary objective of this invention is to provide a weight-adjustable golf club head provided with a rear lightweight covering which has a relatively thin thickness and is made from a low specific gravity metal. The rear lightweight covering has an extension to form a rear wall portion. Accordingly, the rear lightweight covering can lower the center of gravity and reduce the weight of the golf club head.
  • The secondary objective of this invention is to provide a weight-adjustable golf club head provided with the rear lightweight covering. The rear lightweight covering is integrally formed with a rear crown portion and a rear side wall portion, and is combined with a golf club head body which is designed to integrally form with a striking face and a sole portion. Accordingly, the rear lightweight covering can simplify the entire structure of the golf club head.
  • Another objective of this invention is to provide a weight-adjustable golf club head provided with the rear lightweight covering. The rear lightweight covering has an inner surface formed with reinforcing ribs. Accordingly, the rear lightweight covering can lower the center of gravity and enhance the strength of the golf club head.
  • Another objective of this invention is to provide a weight-adjustable golf club head provided with the rear lightweight covering which has an inner surface formed with reinforcing ribs which extend along a front-to-rear direction of the golf club head. Accordingly, the rear lightweight covering with such reinforcing ribs can enhance elastic deformability of the golf club head in impacting a golf ball.
  • The weight-adjustable golf club head in accordance with an aspect of the present invention includes a rear lightweight covering and a golf club head body combined therewith. The rear lightweight covering has a rear crown portion and a rear wall portion extended therefrom. The golf club head body is combined with the rear lightweight covering which is designed to have a striking face, a front crown portion and a sole portion. The rear lightweight covering is made from a low specific gravity metal, and is designed to have a thickness less than 0.6 mm. The rear lightweight covering has an inner surface formed with a plurality of reinforcing ribs.
  • In a separate aspect of the present invention, the reinforcing ribs extend along a front-to-rear direction of the golf club head.
  • In a further separate aspect of the present invention, the reinforcing rib adjacent to a center portion of the rear crown portion of the rear lightweight covering has a greater length.
  • In a yet further separate aspect of the present invention, the reinforcing ribs are formed on an outer surface of the rear lightweight covering.
  • Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various will become apparent to those skilled in the art from this detailed description.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
  • FIG. 1 is an exploded perspective view illustrating a weight-adjustable golf club head having a rear sectional lightweight covering in accordance with a preferred embodiment of the present invention;
  • FIG. 2 is a top elevational view illustrating the weight-adjustable golf club head combined with the rear sectional lightweight covering in accordance with the preferred embodiment of the present invention; and
  • FIG. 3 is a cross-sectional view, taken along line 3-3 in FIG. 2, illustrating the weight-adjustable golf club head combined with the rear sectional lightweight covering in accordance with the preferred embodiment of the present invention.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Referring initially to FIGS. 1 through 3, views of a weight-adjustable golf club head in accordance with the preferred embodiment of the present invention are illustrated. Preferably, the golf club head utilized in practicing the preferred embodiment of the present invention can be selected from several types. By way of example, the golf club head utilized in practicing this illustrated embodiment of the present invention is selected from a driver or a wood-type club head.
  • With reference to FIG. 1, the weight-adjustable golf club head in accordance with the preferred embodiment of the present invention includes a rear lightweight covering designated numeral 1 and a golf club head body designated numeral 2. The rear lightweight covering 1 is designed to connect with a rear portion of the golf club head body 2 so as to constitute the golf club head. Preferably, the rear lightweight covering 1 is made from a relatively low specific gravity metal selected from the group consisting of titanium alloy, Fe-Mn-Al alloy, aluminum alloy and magnesium alloy etc. The rear lightweight covering 1 is designed to have a relatively thin thickness, preferably less than 0.6 mm, so as to reduce the total weight of the golf club head and to minimize the dimensions thereof.
  • Referring now to FIGS. 1 through 3, the golf club head body 2 is made from a relatively high specific gravity metal selected from the group consisting of carbon steel, low-carbon steel, maraging steel, cast iron, nickel-based alloy and structural alloy etc. In this manner, the weight of the golf club head body 2 may be several times higher than that of the rear lightweight covering 1. In this present invention, the ratio may be specifically grown due to the fact that the rear lightweight covering 1 has a relatively thin thickness, preferably less than 0.6 mm. When the rear lightweight covering 1 and the golf club head body 2 are combined, the golf club head body 2 can specifically lower the center of gravity of the golf club head.
  • Constructions of the rear lightweight covering 1 shall be described in detail with reference to FIGS. 1 through 3. Preferably, the rear lightweight covering 1 is integrally formed with a rear crown portion 11, a rear wall portion 12 and a plurality of reinforcing ribs 13. The rear crown portion 11 has a crown-connecting periphery (unlabeled) while the rear wall portion 13 has a wall-connecting periphery (unlabeled). The rear crown portion 11 extends downwardly from the rear crown portion 11. To combine the rear lightweight covering 1 with the golf club head body 2, the crown-connecting periphery is integrally formed from the wall-connecting periphery so as to form a first connecting periphery. The crown-connecting periphery has a crown-assembling edge 111 located at a front upper portion of the rear crown portion 11. Correspondingly, the wall-connecting periphery has wall-assembling edges 121 located at upright portions of the rear wall portion 12, and a bottom-assembling edge 122 located at a lower portion of the rear wall portion 12. To reinforce the structure of the rear lightweight covering 1, the reinforcing ribs 13 are provided and protruded on an inner surface thereof, and extended in a front-to-rear direction of the golf club head. In a preferred embodiment, the reinforcing ribs 13 are integrally formed on the inner surface of the rear lightweight covering 1 by means of stamping operation. Preferably, the reinforcing ribs 13 are parallel each other. In an alternative embodiment, the reinforcing ribs 13 are formed by means of an etching process. Accordingly, it would be advantageous that the rear lightweight covering 1 is not susceptible to distortion or crack during impacting a golf ball.
  • Preferably, the reinforcing rib 13 adjacent to a center portion of the rear crown portion 11 of the rear lightweight covering 1 has a greater length with respect to the front-to-rear direction. Conversely, the reinforcing rib 13 arranged beyond the center portion of the rear crown portion 11 of the rear lightweight covering 1 has a shorter length. The number of the reinforcing ribs 13 provided in practicing the present invention may not affect the elastic deformability of the rear lightweight covering 1.
  • In an alternative, the reinforcing ribs 13 are provided on an outer surface of the rear crown portion 11 of the rear lightweight covering 1 without departing from the present invention.
  • Constructions of the golf club head body 2 shall be described in detail with also reference to FIGS. 1 through 3. Preferably, the golf club head body 2 is integrally formed with a striking face 21, a front crown portion 22 and a sole portion 23. In this preferred embodiment, the striking face 21 is integrally connected between the front crown portion 22 and the sole portion 23. By way of example, in an alternative embodiment, the striking face 21 is separately fabricated and then combined with the golf club head body 2. The front crown portion 22 has a crown-connecting periphery (unlabeled) while the sole portion 23 has a sole-connecting periphery (unlabeled). Preferably, the crown-connecting periphery is integrally formed from the sole-connecting periphery so as to form a second connecting periphery. The second connecting periphery of the golf club head body 1 mechanically connects with the first connecting periphery of the rear lightweight covering 1 when assembled. The crown-connecting periphery has a crown-assembling edge 221 located at a rear upper portion of the front crown portion 22, and further extends downwardly to form wall-assembling edges 222. Correspondingly, the sole-connecting periphery has a sole-assembling edge 231 located at a rear portion of the sole portion 23. The golf club head body 2 further includes a hose 124 arranged at a neck portion adjacent the heel so as to receive a club shaft (not shown).
  • It is apparent from FIG. 1 that the rear lightweight covering 1 occupies a specific volume of the golf club head. Yet further, the rear lightweight covering 1 varies in shape and thickness in adjusting the center of gravity of the golf club head according to the design need. The rear lightweight covering 1, however, shares a lower amount of weight to lower the center of gravity of the golf club head. The golf club head body 2 also varies in weight in adjusting the center of gravity of the golf club head according to the design need. It is also apparent from FIG. 1 that the golf club head body 2 varies in volume or weight but it shares a higher amount of weight of the golf club head.
  • Referring again to FIGS. 2 and 3, in assembling operation, the first connecting periphery of the rear lightweight covering 1 is aligned with the second connecting periphery of the golf club head body 2. In this circumstance, the crown-assembling edge 111 of the rear lightweight covering 1 is engaged with the crown-assembling edge 221 of the golf club head body 2; the wall-assembling edges 121 of the rear lightweight covering 1 are engaged with the wall-assembling edges 222 of the golf club head body 2; and the bottom-assembling edge 122 is engaged with the sole-assembling edge 231 of the golf club head body 2. Once assembled, the rear lightweight covering 1 can be securely mounted on the golf club head body 2 to form the weight-adjustable golf club head. The connecting operation in practicing the present invention may be performed by means of welding, braze welding, adhesive or screw-connection. It would be advantage that the stress impacted on the striking face 21 cannot damage the rear lightweight covering 1 due to the fact that such an arrangement separates the entire structure of the rear lightweight covering 1 from the striking face 21 of the golf club head body 2.
  • Referring again to FIGS. 1 through 3, the rear lightweight covering 1 is designed to have a thickness less than 0.6 mm except the reinforcing ribs 13 so that it performs a high degree of elastic deformability in impacting the golf ball. Additionally, since the rear lightweight covering 1 is made from a relatively low specific gravity metal, the center of gravity of the golf club head is shifted and adjusted in manufacture. It would be advantage that the strength of the rear lightweight covering 1 is increased due to that the reinforcing ribs 13 of the rear lightweight covering 1 extend along the front-to-rear direction of the golf club head in which the stress impacted on the striking face 21 of the golf club head body 2 is transmitted. More importantly, the reinforcing ribs 13 are successful in reinforcing the thin thickness of the rear lightweight covering 1 even though the thickness of the rear lightweight covering 1 is less than 0.6 mm.
  • It will be apparent from the aforementioned discussions that although it would be advantageous to design the golf club head body by providing the recessed grooves on the crown portion and to provide the sole portion, disclosed in U.S. Pat. No. 6,783,465, thereby lowering the center of gravity, the recessed grooves cannot effectively lower the center of gravity and provide adequate elastic deformability in the crown portion. Referring back to FIG. 1, the rear lightweight covering 1 of the present invention can provide a high degree of elastic deformability in the crown portion of the golf club head body 2. Furthermore, a set of the reinforcing ribs 13 extended in the front-to-rear direction can reinforce the thin thickness of the rear lightweight covering 1 in striking the golf ball.
  • Although the invention has been described in detail with reference to its presently preferred embodiment, it will be understood by one of ordinary skill in the art that various modifications can be made without departing from the spirit and the scope of the invention, as set forth in the appended claims.

Claims (13)

1. A weight-adjustable golf club head, comprising:
a golf club head body;
a rear lightweight covering having a rear crown portion and a rear wall portion to combine with the golf club head body, the rear lightweight covering having a thickness less than 0.6 mm; and
a plurality of reinforcing ribs formed on an inner surface of the rear lightweight covering, the reinforcing ribs extending along a front-to-rear direction of the golf club head body;
wherein the reinforcing ribs reinforce the rear lightweight covering which provides a high degree of elastic deformability in impacting a golf ball.
2. The weight-adjustable golf club head as defined in claim 1, wherein the rear lightweight covering is selected from one of a titanium-alloy covering, a Fe-Mn-Al alloy covering, an aluminum alloy covering and a manganese alloy covering.
3. The weight-adjustable golf club head as defined in claim 1, wherein the rear lightweight covering is integrally formed with the rear crown portion and the rear wall portion.
4. The weight-adjustable golf club head as defined in claim 1, wherein the golf club head body is integrally formed with a striking face, a front crown portion and a sole portion.
5. The weight-adjustable golf club head as defined in claim 1, wherein the reinforcing ribs are formed on an inner surface of the rear crown portion of the rear lightweight covering.
6. The weight-adjustable golf club head as defined in claim 5, wherein the reinforcing ribs are parallel each other while extending along the front-to-rear direction of the golf club head body.
7. The weight-adjustable golf club head as defined in claim 1, wherein the rear lightweight covering has a first connecting periphery while the golf club head body has a second connecting periphery.
8. The weight-adjustable golf club head as defined in claim 7, wherein the first connecting periphery has a crown-connecting periphery and a wall-connecting periphery while the second connecting periphery has a crown-connecting periphery and a sole-connecting periphery.
9. The weight-adjustable golf club head as defined in claim 8, wherein the crown-connecting periphery of the first connecting periphery has a crown-assembling edge to connect with that of the second connecting periphery.
10. The weight-adjustable golf club head as defined in claim 8, wherein the wall-connecting periphery of the first connecting periphery has wall-assembling edges to connect with those of the second connecting periphery.
11. The weight-adjustable golf club head as defined in claim 8, wherein the wall-connecting periphery of the first connecting periphery has a bottom-assembling edge to connect with a sole-assembling edge of the second connecting periphery.
12. The weight-adjustable golf club head as defined in claim 1, wherein the rear lightweight covering has a specific gravity lower than that of the golf club head body.
13. The weight-adjustable golf club head as defined in claim 1, wherein the reinforcing rib adjacent to a center portion of the rear crown portion of the rear lightweight covering has a greater length.
US11/523,640 2006-09-20 2006-09-20 Weight-adjustable golf club head provided with rear lightweight covering Abandoned US20080070721A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/523,640 US20080070721A1 (en) 2006-09-20 2006-09-20 Weight-adjustable golf club head provided with rear lightweight covering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/523,640 US20080070721A1 (en) 2006-09-20 2006-09-20 Weight-adjustable golf club head provided with rear lightweight covering

Publications (1)

Publication Number Publication Date
US20080070721A1 true US20080070721A1 (en) 2008-03-20

Family

ID=39189326

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/523,640 Abandoned US20080070721A1 (en) 2006-09-20 2006-09-20 Weight-adjustable golf club head provided with rear lightweight covering

Country Status (1)

Country Link
US (1) US20080070721A1 (en)

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080045356A1 (en) * 2006-08-18 2008-02-21 Chon-Chen Lin Golf club head
US20080214322A1 (en) * 2007-03-01 2008-09-04 Advanced International Multitech Co., Ltd. Golf club head
US20080227564A1 (en) * 2005-07-13 2008-09-18 Breier Joshua G Metal wood golf club head
US20080268980A1 (en) * 2005-04-21 2008-10-30 Breier Joshua G Golf club head with concave insert
US20090305814A1 (en) * 2006-07-31 2009-12-10 Karsten Manufacturing Corporation Golf club head with reinforced crown
US20100022327A1 (en) * 2008-07-28 2010-01-28 Takashi Nakano Golf club head
US20100048325A1 (en) * 2007-02-20 2010-02-25 Toshio Tanimoto Golf club head, and method for manufacturing the golf club head
US20100105499A1 (en) * 2005-04-21 2010-04-29 Acushnet Company Golf club head with moveable insert
US20100130304A1 (en) * 2005-04-21 2010-05-27 Acushnet Company Golf club head with concave insert
US20100144463A1 (en) * 2008-12-04 2010-06-10 Callaway Golf Company Multiple material driver-type golf club head
US7938740B2 (en) 2005-04-21 2011-05-10 Cobra Golf, Inc. Golf club head
US20110287859A1 (en) * 2006-07-31 2011-11-24 Jertson Marty R Golf club heads with ribs and related methods
US20120129621A1 (en) * 2008-08-15 2012-05-24 Nike, Inc. Golf club head and system
US8216087B2 (en) 2005-04-21 2012-07-10 Cobra Gold Incorporated Golf club head
US20130109503A1 (en) * 2011-10-31 2013-05-02 Dunlop Sports Co. Ltd. Golf club head and golf club
US8523705B2 (en) 2005-04-21 2013-09-03 Cobra Golf Incorporated Golf club head
JP2014223141A (en) * 2013-05-15 2014-12-04 復盛應用科技股▲分▼有限公司 Design method of casting flow path of site corresponding to crown part of shell mold of golf club head, and crown part of golf club head moldable by shell mold
US8938871B2 (en) 2005-04-21 2015-01-27 Cobra Golf Incorporated Golf club head with high specific-gravity materials
US9079078B2 (en) * 2011-12-29 2015-07-14 Taylor Made Golf Company, Inc. Golf club head
US9126084B2 (en) 2006-07-31 2015-09-08 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9138622B1 (en) * 2012-09-14 2015-09-22 Callaway Golf Company Multiple-material iron
US20160016053A1 (en) * 2011-01-04 2016-01-21 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US9242152B2 (en) 2006-07-31 2016-01-26 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9314676B2 (en) 2013-10-02 2016-04-19 Karsten Manufacutring Corporation Golf club heads with ribs and related methods
JP2016120125A (en) * 2014-12-25 2016-07-07 ダンロップスポーツ株式会社 Golf club head
JP2016120126A (en) * 2014-12-25 2016-07-07 ダンロップスポーツ株式会社 Golf club head
US9393465B2 (en) 2013-05-02 2016-07-19 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9393471B2 (en) 2005-04-21 2016-07-19 Cobra Golf Incorporated Golf club head with removable component
US9421438B2 (en) 2005-04-21 2016-08-23 Cobra Golf Incorporated Golf club head with accessible interior
US20160250534A1 (en) * 2011-01-04 2016-09-01 Karsten Manufacturing Corporation Golf club heads with apertures and filler materials
US9440123B2 (en) 2005-04-21 2016-09-13 Cobra Golf Incorporated Golf club head with accessible interior
US9504889B2 (en) 2005-04-21 2016-11-29 Cobra Golf Incorporated Golf club with multi-component construction
US20170182380A1 (en) * 2015-12-26 2017-06-29 Dunlop Sports Co. Ltd. Golf club head
US9757630B2 (en) 2015-05-20 2017-09-12 Taylor Made Golf Company, Inc. Golf club heads
US20180071592A1 (en) * 2013-03-15 2018-03-15 Karsten Manufacturing Corporation Golf club head structures having split, multi-part heads
US9925430B2 (en) 2013-05-02 2018-03-27 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10213665B1 (en) 2015-07-13 2019-02-26 Cobra Golf Incorporated Golf club head with adjustable weight
US10427012B2 (en) 2006-07-31 2019-10-01 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10449427B2 (en) 2013-05-02 2019-10-22 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10449424B2 (en) 2013-10-02 2019-10-22 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11235209B2 (en) * 2013-03-15 2022-02-01 Taylor Made Golf Company, Inc. Golf club with coefficient of restitution feature
US11541286B2 (en) 2014-05-21 2023-01-03 Taylor Made Golf Company, Inc. Golf club heads
US11819745B2 (en) 2010-12-31 2023-11-21 Taylor Made Golf Company, Inc. High loft, low center-of-gravity golf club heads

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1167106A (en) * 1914-06-11 1916-01-04 Oliver M Palmer Golf-club.
US4214754A (en) * 1978-01-25 1980-07-29 Pro-Patterns Inc. Metal golf driver and method of making same
US4438931A (en) * 1982-09-16 1984-03-27 Kabushiki Kaisha Endo Seisakusho Golf club head
US5180166A (en) * 1990-10-16 1993-01-19 Callaway Golf Company Hollow, metallic golf club head with dendritic structure
US5346217A (en) * 1991-02-08 1994-09-13 Yamaha Corporation Hollow metal alloy wood-type golf head
US5665014A (en) * 1993-11-02 1997-09-09 Sanford; Robert A. Metal golf club head and method of manufacture
US6595871B2 (en) * 2000-10-11 2003-07-22 Sumitomo Rubber Industries, Ltd. Golf club head
US6602149B1 (en) * 2002-03-25 2003-08-05 Callaway Golf Company Bonded joint design for a golf club head
US6645087B2 (en) * 2000-10-20 2003-11-11 Sumitomo Rubber Industries, Ltd. Golf club head
US6783465B2 (en) * 2001-09-20 2004-08-31 Bridgestone Sports Co., Ltd. Golf club head
US6852038B2 (en) * 2001-11-28 2005-02-08 Sumitomo Rubber Industries, Ltd. Golf club head and method of making the same
US6872152B2 (en) * 2001-06-11 2005-03-29 Taylor Made Golf Company, Inc. Method for manufacturing and golf club head
US20050250596A1 (en) * 2004-05-07 2005-11-10 Cheng-Yu Chuang Golf club head
US7018303B2 (en) * 2001-09-28 2006-03-28 Sri Sports Limited Golf clubhead
US20080026870A1 (en) * 2006-07-31 2008-01-31 Karsten Manufacturing Corporation Golf club head with reinforced crown
US20080045356A1 (en) * 2006-08-18 2008-02-21 Chon-Chen Lin Golf club head

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1167106A (en) * 1914-06-11 1916-01-04 Oliver M Palmer Golf-club.
US4214754A (en) * 1978-01-25 1980-07-29 Pro-Patterns Inc. Metal golf driver and method of making same
US4438931A (en) * 1982-09-16 1984-03-27 Kabushiki Kaisha Endo Seisakusho Golf club head
US5180166A (en) * 1990-10-16 1993-01-19 Callaway Golf Company Hollow, metallic golf club head with dendritic structure
US5346217A (en) * 1991-02-08 1994-09-13 Yamaha Corporation Hollow metal alloy wood-type golf head
US5665014A (en) * 1993-11-02 1997-09-09 Sanford; Robert A. Metal golf club head and method of manufacture
US6595871B2 (en) * 2000-10-11 2003-07-22 Sumitomo Rubber Industries, Ltd. Golf club head
US6645087B2 (en) * 2000-10-20 2003-11-11 Sumitomo Rubber Industries, Ltd. Golf club head
US6872152B2 (en) * 2001-06-11 2005-03-29 Taylor Made Golf Company, Inc. Method for manufacturing and golf club head
US6783465B2 (en) * 2001-09-20 2004-08-31 Bridgestone Sports Co., Ltd. Golf club head
US7018303B2 (en) * 2001-09-28 2006-03-28 Sri Sports Limited Golf clubhead
US6852038B2 (en) * 2001-11-28 2005-02-08 Sumitomo Rubber Industries, Ltd. Golf club head and method of making the same
US6602149B1 (en) * 2002-03-25 2003-08-05 Callaway Golf Company Bonded joint design for a golf club head
US20050250596A1 (en) * 2004-05-07 2005-11-10 Cheng-Yu Chuang Golf club head
US20080026870A1 (en) * 2006-07-31 2008-01-31 Karsten Manufacturing Corporation Golf club head with reinforced crown
US20080045356A1 (en) * 2006-08-18 2008-02-21 Chon-Chen Lin Golf club head

Cited By (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100130305A1 (en) * 2005-04-21 2010-05-27 Acushnet Company Golf club head with concave insert
US8938871B2 (en) 2005-04-21 2015-01-27 Cobra Golf Incorporated Golf club head with high specific-gravity materials
US9393471B2 (en) 2005-04-21 2016-07-19 Cobra Golf Incorporated Golf club head with removable component
US20080268980A1 (en) * 2005-04-21 2008-10-30 Breier Joshua G Golf club head with concave insert
US9855474B2 (en) 2005-04-21 2018-01-02 Cobra Golf Incorporated Golf club head with accessible interior
US9504889B2 (en) 2005-04-21 2016-11-29 Cobra Golf Incorporated Golf club with multi-component construction
US9440123B2 (en) 2005-04-21 2016-09-13 Cobra Golf Incorporated Golf club head with accessible interior
US9421438B2 (en) 2005-04-21 2016-08-23 Cobra Golf Incorporated Golf club head with accessible interior
US7938740B2 (en) 2005-04-21 2011-05-10 Cobra Golf, Inc. Golf club head
US20100130304A1 (en) * 2005-04-21 2010-05-27 Acushnet Company Golf club head with concave insert
US8460592B2 (en) 2005-04-21 2013-06-11 Cobra Golf Incorporated Process of forming a hollow wood-type golf club head
US8303433B2 (en) 2005-04-21 2012-11-06 Cobra Golf Incorporated Golf club head with moveable insert
US20100105499A1 (en) * 2005-04-21 2010-04-29 Acushnet Company Golf club head with moveable insert
US7980964B2 (en) 2005-04-21 2011-07-19 Cobra Golf, Inc. Golf club head with concave insert
US8007371B2 (en) * 2005-04-21 2011-08-30 Cobra Golf, Inc. Golf club head with concave insert
US8038545B2 (en) 2005-04-21 2011-10-18 Cobra Golf Incorporated Golf club head with concave insert
US9901794B2 (en) 2005-04-21 2018-02-27 Cobra Golf Incorporated Golf club head with removable component
US8523705B2 (en) 2005-04-21 2013-09-03 Cobra Golf Incorporated Golf club head
US8226499B2 (en) 2005-04-21 2012-07-24 Cobra Golf Incorporated Golf club head with concave insert
US8216087B2 (en) 2005-04-21 2012-07-10 Cobra Gold Incorporated Golf club head
US8485920B2 (en) 2005-07-13 2013-07-16 Cobra Golf Incorporated Metal wood golf club head
US20080227564A1 (en) * 2005-07-13 2008-09-18 Breier Joshua G Metal wood golf club head
US8425347B2 (en) * 2006-07-31 2013-04-23 Karsten Manufacturing Corporation Golf club head with reinforced crown
US10427012B2 (en) 2006-07-31 2019-10-01 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9295886B2 (en) 2006-07-31 2016-03-29 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US8414421B2 (en) * 2006-07-31 2013-04-09 Karsten Manufacturing Corporation Golf club head with reinforced crown
US9242152B2 (en) 2006-07-31 2016-01-26 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US20230173351A1 (en) * 2006-07-31 2023-06-08 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US20120225736A1 (en) * 2006-07-31 2012-09-06 Karsten Manufacturing Corporation Golf club head with reinforced crown
US8206242B2 (en) * 2006-07-31 2012-06-26 Karsten Manufacturing Corporation Golf club head with reinforced crown
US8523704B2 (en) * 2006-07-31 2013-09-03 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11565156B2 (en) 2006-07-31 2023-01-31 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10850173B2 (en) 2006-07-31 2020-12-01 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US20160101329A1 (en) * 2006-07-31 2016-04-14 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US20120225737A1 (en) * 2006-07-31 2012-09-06 Karsten Manufacturing Corporation Golf club head with reinforced crown
US9814948B2 (en) * 2006-07-31 2017-11-14 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US20110287859A1 (en) * 2006-07-31 2011-11-24 Jertson Marty R Golf club heads with ribs and related methods
US20090305814A1 (en) * 2006-07-31 2009-12-10 Karsten Manufacturing Corporation Golf club head with reinforced crown
US9126084B2 (en) 2006-07-31 2015-09-08 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9333402B2 (en) 2006-07-31 2016-05-10 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US20080045356A1 (en) * 2006-08-18 2008-02-21 Chon-Chen Lin Golf club head
US20100048325A1 (en) * 2007-02-20 2010-02-25 Toshio Tanimoto Golf club head, and method for manufacturing the golf club head
US8308582B2 (en) * 2007-02-20 2012-11-13 E & F Co., Ltd. Golf club head, and method for manufacturing the golf club head
US7507168B2 (en) * 2007-03-01 2009-03-24 Advanced International Multitech Co., Ltd. Golf club head
US20080214322A1 (en) * 2007-03-01 2008-09-04 Advanced International Multitech Co., Ltd. Golf club head
US20100022327A1 (en) * 2008-07-28 2010-01-28 Takashi Nakano Golf club head
US8727910B2 (en) * 2008-07-28 2014-05-20 Sri Sports Limited Golf club head
US8876623B2 (en) * 2008-08-15 2014-11-04 Nike, Inc. Golf club head and system
US20120129621A1 (en) * 2008-08-15 2012-05-24 Nike, Inc. Golf club head and system
US20100144463A1 (en) * 2008-12-04 2010-06-10 Callaway Golf Company Multiple material driver-type golf club head
US11819745B2 (en) 2010-12-31 2023-11-21 Taylor Made Golf Company, Inc. High loft, low center-of-gravity golf club heads
US10195498B2 (en) * 2011-01-04 2019-02-05 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US20170225048A1 (en) * 2011-01-04 2017-08-10 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US11684832B2 (en) * 2011-01-04 2023-06-27 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US10576336B2 (en) * 2011-01-04 2020-03-03 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US20190126109A1 (en) * 2011-01-04 2019-05-02 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US11612793B2 (en) * 2011-01-04 2023-03-28 Karsten Manufacturing Corporation Golf club heads with apertures and filler materials
US10625129B2 (en) 2011-01-04 2020-04-21 Karsten Manufacturing Corporation Golf club heads with apertures and filler materials
US11000744B2 (en) * 2011-01-04 2021-05-11 Karsten Manufacturing Corporation Golf club heads with apertures and filler materials
US20160250534A1 (en) * 2011-01-04 2016-09-01 Karsten Manufacturing Corporation Golf club heads with apertures and filler materials
US10238927B2 (en) * 2011-01-04 2019-03-26 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US20160016053A1 (en) * 2011-01-04 2016-01-21 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US10124224B2 (en) * 2011-01-04 2018-11-13 Karsten Manufacturing Corporation Golf club heads with apertures and filler materials
US10994177B2 (en) 2011-01-04 2021-05-04 Karsten Manufacturing Corporation Golf club heads with apertures and methods to manufacture golf club heads
US20130109503A1 (en) * 2011-10-31 2013-05-02 Dunlop Sports Co. Ltd. Golf club head and golf club
US8864604B2 (en) * 2011-10-31 2014-10-21 Dunlop Sports Co. Ltd. Golf club head and golf club
US11266885B2 (en) 2011-12-29 2022-03-08 Taylor Made Golf Company, Inc. Golf club head
US9795839B2 (en) 2011-12-29 2017-10-24 Taylor Made Golf Company, Inc. Golf club head
US10092797B2 (en) 2011-12-29 2018-10-09 Taylor Made Golf Company, Inc. Golf club head
US9079078B2 (en) * 2011-12-29 2015-07-14 Taylor Made Golf Company, Inc. Golf club head
US9795840B2 (en) 2011-12-29 2017-10-24 Taylor Made Golf Company, Inc. Golf club head
US10463925B2 (en) 2011-12-29 2019-11-05 Taylor Made Golf Company, Inc. Golf club head
US10888742B2 (en) 2011-12-29 2021-01-12 Taylor Made Golf Company, Inc. Golf club head
US9623291B2 (en) 2011-12-29 2017-04-18 Taylor Made Golf Company, Inc. Golf club head
US9399157B2 (en) 2011-12-29 2016-07-26 Taylor Made Golf Company, Inc. Golf club head
US9138622B1 (en) * 2012-09-14 2015-09-22 Callaway Golf Company Multiple-material iron
US11235209B2 (en) * 2013-03-15 2022-02-01 Taylor Made Golf Company, Inc. Golf club with coefficient of restitution feature
US20180071592A1 (en) * 2013-03-15 2018-03-15 Karsten Manufacturing Corporation Golf club head structures having split, multi-part heads
US11040255B2 (en) 2013-03-15 2021-06-22 Karsten Manufacturing Corporation Golf club head structures having split, multi-part heads
US10500448B2 (en) * 2013-03-15 2019-12-10 Karsten Manufacturing Corporation Golf club head structures having split, multi-part heads
US9776056B2 (en) 2013-05-02 2017-10-03 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9925430B2 (en) 2013-05-02 2018-03-27 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10449427B2 (en) 2013-05-02 2019-10-22 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11826618B2 (en) 2013-05-02 2023-11-28 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10258838B2 (en) 2013-05-02 2019-04-16 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9393465B2 (en) 2013-05-02 2016-07-19 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10850172B2 (en) 2013-05-02 2020-12-01 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11266887B2 (en) 2013-05-02 2022-03-08 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10195499B2 (en) 2013-05-02 2019-02-05 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11219804B2 (en) 2013-05-02 2022-01-11 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
JP2014223141A (en) * 2013-05-15 2014-12-04 復盛應用科技股▲分▼有限公司 Design method of casting flow path of site corresponding to crown part of shell mold of golf club head, and crown part of golf club head moldable by shell mold
US9700768B2 (en) 2013-10-02 2017-07-11 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10118075B2 (en) 2013-10-02 2018-11-06 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US9314676B2 (en) 2013-10-02 2016-04-19 Karsten Manufacutring Corporation Golf club heads with ribs and related methods
US10874917B2 (en) * 2013-10-02 2020-12-29 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US10449424B2 (en) 2013-10-02 2019-10-22 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11684829B2 (en) 2013-10-02 2023-06-27 Karsten Manufacturing Corporation Golf club heads with ribs and related methods
US11541286B2 (en) 2014-05-21 2023-01-03 Taylor Made Golf Company, Inc. Golf club heads
JP2016120126A (en) * 2014-12-25 2016-07-07 ダンロップスポーツ株式会社 Golf club head
JP2016120125A (en) * 2014-12-25 2016-07-07 ダンロップスポーツ株式会社 Golf club head
US9757630B2 (en) 2015-05-20 2017-09-12 Taylor Made Golf Company, Inc. Golf club heads
US10300356B2 (en) 2015-05-20 2019-05-28 Taylor Made Golf Company, Inc. Golf club heads
US10213665B1 (en) 2015-07-13 2019-02-26 Cobra Golf Incorporated Golf club head with adjustable weight
US20170182380A1 (en) * 2015-12-26 2017-06-29 Dunlop Sports Co. Ltd. Golf club head

Similar Documents

Publication Publication Date Title
US20080070721A1 (en) Weight-adjustable golf club head provided with rear lightweight covering
US7448961B2 (en) Golf club head having a complex plate formed with an upraised protrusion structure
US20070082751A1 (en) Golf club head having a high-degree elastically deformable structure
US7371188B2 (en) Golf club head having a connecting structure for a high degree of flexibility
US7247103B2 (en) Golf club head providing enhanced acoustics
US9452325B2 (en) Golf club head having a composite crown
JP4977176B2 (en) Iron type golf club head
US7393287B2 (en) Golf club head with lower center of gravity
US8033930B2 (en) Weight element for a golf club
US7935003B2 (en) Golf club head
US6921344B2 (en) Reinforced golf club head having sandwich construction
US7153219B2 (en) Golf club head
US7435188B2 (en) Golf putter head
EP2480293B1 (en) Golf club having two-part head
US20060293119A1 (en) Striking plate for golf club head
US20080194356A1 (en) Wooden club head
JP3126818U (en) Golf club head structure
US10543404B2 (en) Golf club head
JP3133532U (en) Golf club head face plate structure
JP3149583U (en) Golf club head
US10449425B2 (en) Golf club head
CN112169281A (en) Golf club head and golf club
JP2018093889A (en) Golf club head
JPWO2003039684A1 (en) Iron club head and iron type golf club

Legal Events

Date Code Title Description
AS Assignment

Owner name: FU SHENG INDUSTRIAL CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, CHENG-JIN;TSAI, CHIU-HONG;REEL/FRAME:018326/0346;SIGNING DATES FROM 20060731 TO 20060801

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION