US3612520A - Rockable exercising platform for skiers - Google Patents

Rockable exercising platform for skiers Download PDF

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US3612520A
US3612520A US847625A US3612520DA US3612520A US 3612520 A US3612520 A US 3612520A US 847625 A US847625 A US 847625A US 3612520D A US3612520D A US 3612520DA US 3612520 A US3612520 A US 3612520A
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base member
platform
exerciser
weight
skiers
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US847625A
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Quong Y Chang
John W Stone
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LIFE SYSTEMS ENGINEERING
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LIFE SYSTEMS ENGINEERING
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/0004—Exercising devices moving as a whole during exercise
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/18—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0025—Particular aspects relating to the orientation of movement paths of the limbs relative to the body; Relative relationship between the movements of the limbs
    • A63B2022/0033—Lower limbs performing together the same movement, e.g. on a single support element
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06—User-manipulated weights

Definitions

  • the present invention is directed to an exerciser particularly adapted for the muscular conditioning of skiers, and is summarized in the following objects:
  • FIG. 1 is a plan view of the exerciser.
  • FIG. 2 is a side view thereof.
  • FIGS. 3, 4 and 5 are other side views thereof, showing the exerciser in different angular positions.
  • FIG. 6 is an enlarged sectional view, taken through 6-6 of FIG. I.
  • the exerciser includes a base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the
  • - base member 1 forms a spherical apex portion 2, the periphery of which merges into a first conical area 3, which in turn, merges into a second conical area 4 of greater slope, the areas forming therebetween a narrow transition zone 5.
  • the outer periphery of the base member forming the second conical area 4 is joined to an annular internal reinforcing rib 6, which in turn, is joined to an upwardly directed marginal rim 7.
  • a platform 8 also preferably formed of plastic material, and having an annular groove, is received on the marginal rim 7 and secured thereto by cement 9.
  • a fixed weight 13 Centrally located in the base member 1 is a fixed weight 13, which may be secured thereto by a cement 14.
  • the fixed weight 13 supports a vertically extending stud bolt 15, which receives an adjustment nut 16.
  • the adjustment nut may be provided with friction producing means 17 so as to prevent free rotation.
  • Molded around, or otherwise secured to the adjustment nut 16, is a disk-shaped movable weight 18.
  • the platform 8 is provided with a central aperture 19 to expose the nut 16 for adjustment.
  • Cemented to the upper surface of the platform 8 is a sheet of material 20, having a high friction surface which may include suitable ridges and grooves. Alternatively, the surface of the platform 8 may be finished to provide a high friction surface.
  • the user stands on the platform 8 in such a manner as to balance thereon, with the spherical apex portion 2 in engagement with an underlying floor surface.
  • the user may tilt the base member to the first conical area 3. He will sense the transition zone 5 if he causes the base member to move from the first conical area 3 to the second conical area 4, as shown in FIG. 4, and can with a little practice, avoid movement to the second conical area.
  • the user may simulate various movements which are made when skiing. These include the following movements or actions:
  • Anticipation Series of movements used to initiate a christieup-unweighting, an increase of forward lean, banking and a partial rotary (in the direction of the turn) motion of the hips, shoulders, arms and outside ski pole.
  • the shoulders are used to supply the turning force and the muscles allowing the hips and legs to swivel around at the ankles must be contracted (or blocked) at the right time so that the torque generated by the shoulders is passed on to the feet and skis.
  • Counter-Rotation This occurs when the shoulders and hips rotate in a direction opposite, or counter, to that of the feet and skis. Counterrotation usually occurs in conjunction with heel push.
  • Foot Swivel A form of turning power where the strength of the lower legs is used to swing both ends of the skis so that they swivel or pivot around directly underfoot. This is often used to initiate parallel christies.
  • Heel Thrust Using the toes or the shovels of the skis as pivot points, the heels can be thrust to either side to produce a powerful turning force.
  • Knee Crank The knees, either singularly or together, can exert a strong turning force when pushed in toward the center of an intended turn.
  • Rotation When any part of the body twists, or rotates, in the direction of the turn, it can influence the turn. Thus, there can be foot rotation, hip rotation, shoulder rotation, etc.
  • Snowplow and stem turns can be spoken of as steered turns because the strength of the legs and feet is used to steer the skis around.
  • Tip Thrust By using the heels or the tail ends of the skis as pivots, the tips can be thrust or pulled to either side to induce a quick change of direction.
  • Turning Power Any of the many sources of force used to initiate or continue a turning movement of the skis.
  • Twisting Angulation A combination of counterrotation and angulation performed simultaneously. The result is often referred to as the comma or reversed shoulder position.
  • the user can perform a series of exercises, especially useful in practicing feet, ankle, leg and body coordination, and including heel thrust, foot swivel, tip thrust and combined displacement. More particularly, the user can, by confining the movement of the base member 1 to the spherical apex portion 2 and first conical area 3, limit the intensity of the exercise, and thus it serves to begin muscular conditioning. Following initial muscular conditioning, the user may increase the intensity of the exercise by including the second conical area 4; that is, the base member may be tilted to the
  • the adjustable weight by effecting change in the center of gravity, changes the stability of the exerciser. More specifi 5 cally, if the weight is adjusted to its lower position, it is easier for the user to balance on the exerciser.
  • the user can proceed initially, with the weight in its lowermost position, to manipulate the exerciser at different angles; then, repeat this with the weight raised to different levels until finally the weight is at its highest position.
  • the sequence of weight adjustment and angles of tilt may be adapted to the needs and skill of the user.
  • An exerciser for skiers comprising:
  • a base member having an apex of spherical contour and a series of concentric angularly related conical surfaces of increasing slope;
  • apex of spherical contour being of a diameter that is a minor portion of the diameter of said platform and centrally located therebelow whereby to be between the feet of a user standing on said platform.
  • said base member includes a fixed weight at its apex portion.
  • said base member is hollow and includes a centrally located weight and means for adjusting the position of the weight to move the center of gravity.
  • a hollow base member having an apex of spherical contour and a series of concentric, angularly related surfaces defining conical areas of increasing slope for presentation to an underlying floor, said base member terminating in a nm;
  • weight means includes:

Abstract

An exerciser for skiers in the form of a hollow bowl having a platform on which the skier strands; the outer surface of the bowl having a spherically shaped base portion and angularly related essentially conical portions which permit the skier to select angles at which the platform is tilted to predetermine the intensity of the exercise; the bowl containing a fixed weight at its base portion to lower its center of gravity and a vertically adjustable weight to change the center of gravity.

Description

United States Patent Appl. No. Filed Patented Assignee ROCKABLE EXERCISING PLATFORM FOR SKIERS Primary ExaminerRichard C. Pinkham Assistant ExaminerRichard Dror Attorney-Lyon & Lyon ABSTRACT: An exerciser for skiers in the form of a hollow bowl having a platform on which the skier strands; the outer surface of the bowl having a spherically shaped base portion 5 claimsfi Drawing Figs and angularly related essentially conical portions which per- U.S. Cl 272/57 B, mit the skier to select angles at which the platform is tilted to 272/60, 27 2/57 A predetermine the intensity of the exercise; the bowl containing Int. Cl A631) 23/04 a fixed weight at its base portion to lower its center of gravity Field of Search 272/33 A, and a vertically adjustable weight to change the center of 57 A, 57 B, 60 gravity.
PATENTEBum 12 Ian 3,6 1 2 520 Z JOHN M/ 5 TONE INVENTORS ATTORNEYS ROCKABLE EXERCISING PLATFORM FOR SKIERS BACKGROUND OF THE INVENTION The sport of skiing requires special development of muscles particularly in the feet, ankles and legs. This was recently indicated in an article appearing in the Nov. i968 issue of Skiing Magazine. It is desirable, in fact imperative, that a skier perform exercises to condition his muscles prior to the first ski runs of the season, or greatly increase his chance of serious injury. Few skiers have exposure to skiing conditions for the period necessary to develop the muscles by gradually increasing exercise on the ski slope; consequently, special apparatus is required. Such apparatus has been developed; however, the more successful apparatus has been expensive and confined to gymnasiums. Attempts have been made to provide inexpensive portable exercising devices for home use, but these have been deficient for the proper progressive development of the muscles.
A type of toy has been developed, as exemplified in US. Pat. No. 3,024,021, which consists in a platform placed on a ball or portion thereof'so that one may stand on the platform and rock. Such devices while suitable as atoy and a general purpose exerciser, fails to accomplish the objectives of a skier's exerciser and particularly does not provide for exercise of progressively increased intensity. I
SUMMARY OF THE INVENTION The present invention is directed to an exerciser particularly adapted for the muscular conditioning of skiers, and is summarized in the following objects:
First, to provide a simple and inexpensive exerciser whereby a skier may initiate his exercise at low intensity, then progressively intensify the exercise as his muscles strengthen; that is, the skier may control the intensity of his exercise to correspond to the condition of his muscles.
Second, to provide an exerciser for skiers on which the skier may simulate the various maneuvers he is required to perform when on skis.
Third, to provide an exerciser for skiers which is in the form of a bowl having a specially contoured outer surface defining angularly related conical areas so that the device may be tilted to present a selected area to the floor.
Fourth, to provide an exerciser for skiers as suggested in the preceding object which contains a fixed weight and an adjustable weight so that the center-of-gravity may be adjusted to the needs of the user.
DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of the exerciser.
FIG. 2 is a side view thereof.
FIGS. 3, 4 and 5 are other side views thereof, showing the exerciser in different angular positions.
FIG. 6 is an enlarged sectional view, taken through 6-6 of FIG. I.
SPECIFICATION The exerciser includes a base member 1, preferably formed of plastic material and bowl-shaped in contour. Externally, the
- base member 1 forms a spherical apex portion 2, the periphery of which merges into a first conical area 3, which in turn, merges into a second conical area 4 of greater slope, the areas forming therebetween a narrow transition zone 5.
The outer periphery of the base member forming the second conical area 4 is joined to an annular internal reinforcing rib 6, which in turn, is joined to an upwardly directed marginal rim 7. A platform 8 also preferably formed of plastic material, and having an annular groove, is received on the marginal rim 7 and secured thereto by cement 9. The outer periphery of the second conical area, the juncture between the internal rib 6 and the marginal rim 7, and the lower peripheral corner of the platform 8, designated respectively 10, 11 and 12, define a third conical area.
Centrally located in the base member 1 is a fixed weight 13, which may be secured thereto by a cement 14. The fixed weight 13 supports a vertically extending stud bolt 15, which receives an adjustment nut 16. The adjustment nut may be provided with friction producing means 17 so as to prevent free rotation. Molded around, or otherwise secured to the adjustment nut 16, is a disk-shaped movable weight 18. The platform 8 is provided with a central aperture 19 to expose the nut 16 for adjustment.
Cemented to the upper surface of the platform 8 is a sheet of material 20, having a high friction surface which may include suitable ridges and grooves. Alternatively, the surface of the platform 8 may be finished to provide a high friction surface.
Operation of the exerciser is as follows:
The user stands on the platform 8 in such a manner as to balance thereon, with the spherical apex portion 2 in engagement with an underlying floor surface. By manipulation of his weight, the user may tilt the base member to the first conical area 3. He will sense the transition zone 5 if he causes the base member to move from the first conical area 3 to the second conical area 4, as shown in FIG. 4, and can with a little practice, avoid movement to the second conical area.
' By appropriate manipulation, the user may simulate various movements which are made when skiing. These include the following movements or actions:
Anticipation: Series of movements used to initiate a christieup-unweighting, an increase of forward lean, banking and a partial rotary (in the direction of the turn) motion of the hips, shoulders, arms and outside ski pole.
Blocking: The shoulders are used to supply the turning force and the muscles allowing the hips and legs to swivel around at the ankles must be contracted (or blocked) at the right time so that the torque generated by the shoulders is passed on to the feet and skis.
Counter-Rotation: This occurs when the shoulders and hips rotate in a direction opposite, or counter, to that of the feet and skis. Counterrotation usually occurs in conjunction with heel push.
Foot Swivel: A form of turning power where the strength of the lower legs is used to swing both ends of the skis so that they swivel or pivot around directly underfoot. This is often used to initiate parallel christies.
Heel Thrust: Using the toes or the shovels of the skis as pivot points, the heels can be thrust to either side to produce a powerful turning force.
Knee Crank: The knees, either singularly or together, can exert a strong turning force when pushed in toward the center of an intended turn.
Rotation: When any part of the body twists, or rotates, in the direction of the turn, it can influence the turn. Thus, there can be foot rotation, hip rotation, shoulder rotation, etc.
Steering: Snowplow and stem turns can be spoken of as steered turns because the strength of the legs and feet is used to steer the skis around.
Tip Thrust: By using the heels or the tail ends of the skis as pivots, the tips can be thrust or pulled to either side to induce a quick change of direction.
Turning Power: Any of the many sources of force used to initiate or continue a turning movement of the skis.
Twisting Angulation: A combination of counterrotation and angulation performed simultaneously. The result is often referred to as the comma or reversed shoulder position.
It will thus be seen that the user can perform a series of exercises, especially useful in practicing feet, ankle, leg and body coordination, and including heel thrust, foot swivel, tip thrust and combined displacement. More particularly, the user can, by confining the movement of the base member 1 to the spherical apex portion 2 and first conical area 3, limit the intensity of the exercise, and thus it serves to begin muscular conditioning. Following initial muscular conditioning, the user may increase the intensity of the exercise by including the second conical area 4; that is, the base member may be tilted to the The adjustable weight 18, by effecting change in the center of gravity, changes the stability of the exerciser. More specifi 5 cally, if the weight is adjusted to its lower position, it is easier for the user to balance on the exerciser. As the weight is adjusted upward, greater skill is required in order to control the exerciser. As a result, the user can proceed initially, with the weight in its lowermost position, to manipulate the exerciser at different angles; then, repeat this with the weight raised to different levels until finally the weight is at its highest position. Of course, the sequence of weight adjustment and angles of tilt may be adapted to the needs and skill of the user.
The present embodiment of this invention is to be considered in all respects as illustrative and not restrictive.
We claim:
1. An exerciser for skiers, comprising:
a. a base member having an apex of spherical contour and a series of concentric angularly related conical surfaces of increasing slope;
b. and a substantially flat platform covering the entire base member to define the uppermost surface thereof and dimensioned to receive substantially only the feet of the user whereby the user, when standing on said platform,
may rock the base member to a selected conical surface to control the intensity of his exercise, said apex of spherical contour being of a diameter that is a minor portion of the diameter of said platform and centrally located therebelow whereby to be between the feet of a user standing on said platform.
2. An exerciser, as defined in claim 1, wherein:
a. said base member includes a fixed weight at its apex portion.
3. An exerciser, as defined in claim 1, wherein:
a. said base member is hollow and includes a centrally located weight and means for adjusting the position of the weight to move the center of gravity.
4. An exerciser, as defined in claim 1 for skiers, comprising:
a. a hollow base member having an apex of spherical contour and a series of concentric, angularly related surfaces defining conical areas of increasing slope for presentation to an underlying floor, said base member terminating in a nm;
b. a platform covering the base member and secured to said rim, the platform having an aperture for access to said base member;
c. and vertically adjustable weight means in said base member accessible for adjustment from the central portion of said platform.
5. An exerciser for skiers, as defined in claim 4, wherein said weight means includes:
a. a fixed weight secured in the apex region of the base member;
b. a screwthreaded post projecting upwardly therefrom;
c. and an adjustable weight carried by said post.

Claims (5)

1. An exerciser for skiers, comprising: a. a base member having an apex of spherical contour and a series of concentric angularly related conical surfaces of increasing slope; b. and a substantially flat platform covering the entire base member to define the uppermost surface thereof and dimensioned to receive substantially only the feet of the user whereby the user, when standing on said platform, may rock the base member to a selected conical surface to control the intensity of his exercise, said apex of spherical contour being of a diameter that is a minor portion of the diameter of said platform and centrally located therebelow whereby to be between the feet of a user standing on said platform.
2. An exerciser, as defined in claim 1, wherein: a. said base member includes a fixed weight at its apex portion.
3. An exerciser, as defined in claim 1, wherein: a. said base member is hollow and includes a centrally located weight and means for adjusting the position of the weight to move the center of gravity.
4. An exerciser, as defined in claim 1 for skiers, comprising: a. a hollow base member having an apex of spherical contour and a series of concentric, angularly related surfaces defining conical areas of increasing slope for presentation to an underlying floor, said base member terminating in a rim; b. a platform covering the base member and secured to said rim, the platform having an aperture for access to said base member; c. and vertically adjustable weight means in said base member accessible for adjustment from the central portion of said platform.
5. An exerciser for skiers, as defined in claim 4, wherein said weight means includes: a. a fixed weight secured in the apex region of the base member; b. a screwthreaded post projecting upwardly therefrom; c. and an adjustable weight carried by said post.
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Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787047A (en) * 1971-10-15 1974-01-22 D Brawn Ski motion simulating training device
US3912262A (en) * 1973-07-17 1975-10-14 Karl Micko Gymnastic, recreational and instructional apparatus
US4076235A (en) * 1975-07-30 1978-02-28 Risberg Jr Carl Entertainment and exercise device
US4183521A (en) * 1978-01-31 1980-01-15 Kroeker Delbert R Exercising device
US4191371A (en) * 1978-01-16 1980-03-04 Armer Leon Jr Balancing apparatus
US4289306A (en) * 1979-10-29 1981-09-15 Thomas Ross T Exercise wheel
EP0088643A1 (en) * 1982-03-10 1983-09-14 Hakon Dr. Lie Balance training apparatus
US4605224A (en) * 1984-05-14 1986-08-12 Saitama Kako Co., Ltd. Exercise apparatus
US4687198A (en) * 1986-01-06 1987-08-18 Smith Terry W Recreational platform
US4801140A (en) * 1987-03-09 1989-01-31 Bergeron Timothy J Therapeutic exercise equipment for the handicapped
US4998719A (en) * 1988-11-29 1991-03-12 Frantisek Jahoda Judo training device
US5048823A (en) * 1990-08-27 1991-09-17 Bean John A Balance board
US5188578A (en) * 1992-01-13 1993-02-23 Voigt Bruce S Skiiing simulator and training device
US5203279A (en) * 1991-01-03 1993-04-20 Martin Eversdyk Puppy training device
US5415589A (en) * 1993-07-16 1995-05-16 Hall, Jr.; Rudolph V. Variable motion device
DE10134688A1 (en) * 2001-07-20 2003-02-06 Thieme Sport Gmbh Device serving for movement therapy comprises a planar round surface for the user to stand on, a spherical section, and a transitional zone joining the planar surface to the spherical section
US6666802B1 (en) * 2002-11-13 2003-12-23 Aaron P. Rasmussen Rotary tilt exercise machine
US20040009859A1 (en) * 2002-07-10 2004-01-15 Gottlieb Marc S. Exercise device and method of using the same
US6979282B1 (en) 2004-12-10 2005-12-27 Ingenious Designs Llc Portable foot operated exercise device
US20060040796A1 (en) * 2004-08-23 2006-02-23 Holloway Jennifer J Step/balance apparatus
WO2006064055A1 (en) * 2004-12-17 2006-06-22 Enrico Tacconi Device for rehabilitation of the limbs and of the trunk
US20070027009A1 (en) * 2005-07-30 2007-02-01 Precor Incorporated Exercise device having a movable platform
US20070298949A1 (en) * 2006-06-22 2007-12-27 Soletski Michael M Lower extremity exercise device
WO2008052546A1 (en) * 2006-10-31 2008-05-08 Wobblesmart International Balancing device
US7537555B2 (en) 2006-06-22 2009-05-26 Soletski Michael M One-piece, lightweight extremity exercise device
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US7713182B2 (en) 2006-11-06 2010-05-11 Edison Nation, Llc Exercise devices
US20110143896A1 (en) * 2009-12-11 2011-06-16 Level 10 Fitness Products LLC. Exercise apparatus
US8202172B1 (en) * 2008-10-03 2012-06-19 Lejeune Francis E Child rocking toy
US20140162859A1 (en) * 2012-12-07 2014-06-12 Chih-Hung Cheng Resistance regulating balance board
USD806189S1 (en) 2017-01-27 2017-12-26 John R. Failing Wobbling balance board
USD806190S1 (en) 2017-01-27 2017-12-26 John R. Failing Wobbling balance board
US9950241B2 (en) * 2014-12-22 2018-04-24 John Pfeifer Snow ski assemblies
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US10252103B2 (en) 2015-01-08 2019-04-09 Step Fitness & Recreation, Inc. Step platform
USD910125S1 (en) * 2020-07-08 2021-02-09 Ningbo Likeju Trading Co., Ltd. Balance board
US10918222B2 (en) * 2014-07-22 2021-02-16 Sharon Galitzer Sensorimotor discs for infants and babies
USD916218S1 (en) * 2020-05-20 2021-04-13 Hangzhou Yue Fu Si Supply Chain Management Co., Ltd. Balance board
US20210352193A1 (en) * 2018-08-01 2021-11-11 Playcore Wisconsin, Inc. Playground apparatus comprising a camera support
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US2878858A (en) * 1957-03-06 1959-03-24 Winchester Barbara Bowl shaped play thing

Cited By (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787047A (en) * 1971-10-15 1974-01-22 D Brawn Ski motion simulating training device
US3912262A (en) * 1973-07-17 1975-10-14 Karl Micko Gymnastic, recreational and instructional apparatus
US4076235A (en) * 1975-07-30 1978-02-28 Risberg Jr Carl Entertainment and exercise device
US4191371A (en) * 1978-01-16 1980-03-04 Armer Leon Jr Balancing apparatus
US4183521A (en) * 1978-01-31 1980-01-15 Kroeker Delbert R Exercising device
US4289306A (en) * 1979-10-29 1981-09-15 Thomas Ross T Exercise wheel
EP0088643A1 (en) * 1982-03-10 1983-09-14 Hakon Dr. Lie Balance training apparatus
US4509743A (en) * 1982-03-10 1985-04-09 Chatanooga Corporation Balance training apparatus
US4605224A (en) * 1984-05-14 1986-08-12 Saitama Kako Co., Ltd. Exercise apparatus
US4687198A (en) * 1986-01-06 1987-08-18 Smith Terry W Recreational platform
US4801140A (en) * 1987-03-09 1989-01-31 Bergeron Timothy J Therapeutic exercise equipment for the handicapped
US4998719A (en) * 1988-11-29 1991-03-12 Frantisek Jahoda Judo training device
US5048823A (en) * 1990-08-27 1991-09-17 Bean John A Balance board
US5203279A (en) * 1991-01-03 1993-04-20 Martin Eversdyk Puppy training device
US5188578A (en) * 1992-01-13 1993-02-23 Voigt Bruce S Skiiing simulator and training device
US5415589A (en) * 1993-07-16 1995-05-16 Hall, Jr.; Rudolph V. Variable motion device
DE10134688A1 (en) * 2001-07-20 2003-02-06 Thieme Sport Gmbh Device serving for movement therapy comprises a planar round surface for the user to stand on, a spherical section, and a transitional zone joining the planar surface to the spherical section
US20040009859A1 (en) * 2002-07-10 2004-01-15 Gottlieb Marc S. Exercise device and method of using the same
US7137938B2 (en) 2002-07-10 2006-11-21 Gottlieb Marc S Exercise device and method of using the same
US6666802B1 (en) * 2002-11-13 2003-12-23 Aaron P. Rasmussen Rotary tilt exercise machine
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