US3835558A - Insole - Google Patents
Insole Download PDFInfo
- Publication number
- US3835558A US3835558A US00342999A US34299973A US3835558A US 3835558 A US3835558 A US 3835558A US 00342999 A US00342999 A US 00342999A US 34299973 A US34299973 A US 34299973A US 3835558 A US3835558 A US 3835558A
- Authority
- US
- United States
- Prior art keywords
- insole
- layer
- woven
- layers
- bonded
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
Definitions
- Known insoles for incorporation in a shoe include those having a forepart which is flexible to permit the shoe to bend as a wearer walks and a more rigid heel seat and waist portion which gives strength to the shoe in the heel seat and waist region thereof and to which the heel of a shoe is commonly attached using suitable fastening members, for example nails or staples.
- the forepart portion of such insoles comprises a suitable flexible insoling material, for example water laid fibrous sheet material bonded with natural or synthetic rubber.
- the heel seat and waist portion of such an insole comprises a more rigid fiberboard, commonly known as shankboard.
- Insoles of this type may be cut from a composite board made by sticking together a rectangular piece of flexible forepart material and shankboard; an edge portion of each piece of board is skived, thus giving a tapered edge portion, and suitable adhesive is applied to the skived edge portion of each material, the skived edge portions are then brought into contact and the adhesive thereon bonds the two pieces together.
- the adhesive has set, insoles are cut from the so-formed composite board.
- the insoles cut from the board have a lap joint in the region of the ball of the foot.
- After the insoles have been cut out it is a known practice to impart a shape corresponding approximately to the contour of the bottom of a foot to the insoles by subjecting them to pressure applied by dies having a suitable shape in a suitable machine.
- One of the various objects of the present invention is to provide an improved unitary shoe insole having a stiff rear portion and a flexible forepart.
- a unitary shoe insole is formed by assembling through and partial layers of non-woven bonded fiber and combining them with a unitary insole by heat and pressure.
- FIG. 1 is an angular view of an insole according to the present invention
- FIG. 2 is an exploded angular elevational view showing the layers to be joined into the shoe insole arranged for combination to form the insole;
- FIG. 3 is a sectional view taken on the line IIIIII of FIG. 1.
- An insole according to the present invention is a nonwoven bonded fiber sheet 10 (see FIGS. 1 and 3) having an outline shape for incorporation in footwear and is constructed to have a rear portion 12 of greater density and rigidity than the fore part 14.
- the insole may be formed from one or more through layers 16 having an outline shape corresponding to that of the insole and one or more short layers 18 bonded to a rear portion 12 of the through layer 16.
- Each of the through layers 16 is a non-woven bonded fiber batt which may be made by first forming an intermediate batt by gametting, cross-laying and needling fibers and then introducing a binder into this intermediate batt.
- Suitable binders include heat softenable resinous materials such as the vinyl polymer and copolymer resins, polystyrene, polyacrylates and methacrylates, polymers and copolymers of isobutylic and butadiene, natural resins and mixtures of these.
- the melting point of these resinous materials must be high enough not to soften in use but low enough to be softened for bonding together of layers in the press.
- the binder may be applied as an aqueous emulsion or as a volatile organic solvent solution or in powder form.
- each illustrative insole also consists of a similar non-woven bonded fiber batt.
- the rear, heel seat and waist portion 12, 20 and 22 respectively of the illustrative insoles 10, comprising both the through layer or layers 16 and the short layer or layers 18, has greater density and rigidity and is at least as thick as and preferably is thicker than the forepart 16 of the insole.
- the non-woven bonded fiber layers 16 and 18 which are to form the insole are assembled in face-to-face relation.
- the assembly may comprise at least one through layer 16 consisting of a non-woven bonded fiber batt having an outline shape corresponding to that of the insole and one or more short layers 18 at least one of which consists of a non-woven bonded fiber batt and each of which has an outline shape corresponding with the outline shape of a rear portion of the through layer.
- the assembly may be prepared by arranging a number of layers of non-woven bonded fiber batt in face-to-face relation and cutting the insole assembly from the assembled layers 18, so that the outline shape of the short layers correspond with the rear portion of the through layer 16.
- the assembly may be made by cutting the through layer or layers 16, cutting the short layers 18 separately and assembling the pre-cut layers to provide the insole assembly.
- a short layer portion may be made of a non-woven bonded fiber material having a thickness double or three times the thickness of the through layer rather than by use of a plurality of short layers.
- the insole assembly is subjected to heat and pressure in either a high-frequency welding press or a press having electrically heated platens.
- the heat and pressure causes the layers to bond together through the action of the bonding agent in the fiber layers in the rear portion of the insole assembly, and the rear portion 12 is consodlidated or densified so that it has a greater density and rigidity than the forepart portion 14. It is preferred that the density of the rear portion be at least 50 percent greater than in the forepart portion,
- a stiff, heat softenable sheet material suitably a sheet of resin plastic such as polyvinyl chloride, vinyl chloride copolymers, polypropylene, polystyrene, polyamides or other thermoplastic or stiff sheet material.
- the sheet material other than nonwoven bonded fiber batt is preferably selected to be resistant to nails being pulled therethrough.
- the plastic sheet material is of a type of plastic material which is heated when subjected to a high-frequency electric field.
- thermoplastic resin sheet e.g., polyvinyl chloride
- the heat and pressure is preferably supplied by a high-frequency welding press because the resin such as polyvinyl chloride is heated rapidly by the high-frequency fields and would be difficult to heat at a sufficiently fast rate to achieve adequate bonding in a reasonable length of time if a press of the heated platen type were to be used.
- the presser members 24 and 26 by which the insoles are heated and pressed are shaped to impart to the insoles a shape corresponding approximately to the bottom of a foot.
- One of the presser members 24 may conveniently be a suitably shaped metal member and the other of the presser members 26 may be a partially shaped resilient member having a flexible electrode (not shown) embedded therein, the resilient presser member 26 being such that as the two presser members are pressed toward each other so that the resilient member forces the insole assembly against the rigid metal member and molds it to the shape of the metal member.
- the insole assembly is to be shaped at the same time as the layers thereof are bonded together a shank member 28 of metal or other strong stiff material be bonded to the insole assembly in the heating and pressing step.
- the shank member may be coated with polyvinyl chloride powder or the like as a bonding agent.
- parts, at least, of the insole assembly comprise material which is heated by application of a high-frequency electric field.
- the insole assembly comprises a non-woven fiber batt the fibers of which are bonded by a binder
- the binder will comprise a material which is heated by application of a high-frequency electric field.
- insoles in accordance with the invention may have a suitable finish, for example a material comprising 50 parts by weight of an aqueous dispersion of carboxylated high nitrile content synthetic rubber having a solids content of about 42 percent by weight and containing zinc oxide as a curing agent, 50 percent by weight of an aqueous dispersion of a vinyl chloride copolymer having a solids content of from about 55 percent to about 59 percent by weight, parts by weight of 10 percent sodium carboxymethyl cellulose as a thickening agent and 5 parts by weight of a suitable color dispersion, for example a water based dispersion, instead of a stuck'in sock such as is used in many shoes at present.
- a suitable finish for example a material comprising 50 parts by weight of an aqueous dispersion of carboxylated high nitrile content synthetic rubber having a solids content of about 42 percent by weight and containing zinc oxide as a curing agent, 50 percent by weight of an aqueous disper
- a non-woven fiber batt was formed by garnetting a mixture of fibers in the ratio of about one-third by weight of4 denier nylon staple fibers from 1 to 4 inches in average length with no staple exceeding 7 /2 inches and about two-thirds by weight of viscous rayon fibers of mixed denier up to 11 (most fibers having a denier of about 3) and having a mixed staple length between l inches and 3 inches.
- the resulting light-weight, non-woven fiber web was cross-laid to form a thicker web and this thicker web was passed through a needle loom to consolidate the web and form an intermediate non-woven batt.
- the intermediate batt had a weight of about 480 grams per square meter, and was between 2.5 and 3.0 millimeters in thickness.
- This intermediate batt was then passed through an impregnating bath composed of an aqueous dispersion of vinyl chloride copolymer having a solids content of from to 59 percent. From the bath the impregnated material was passed between stripper rolls to remove excess impregnant and was dried by passing it through a drying oven and round heated drying drums (the drums being heated by steam at 40 psi).
- the non-woven bonded fiber batt so formed consisted of 1 part by weight fiber to 1 part by weight of binder.
- the impregnated and dried material was about 2.5 millimeters in thickness.
- a third piece of the nonwoven bonded fiber batt measuring 7% inches by 8 inches was laid on top of the second piece, in alignment therewith.
- a cutting die having the outline shape of an insole to be made, was placed on the materials, positioned so that the region of the die which was to cut out a forepart portion of an insole overlay only the first piece of the non-woven bonded fiber batt, the line marking the front edges of the second and third pieces of material lay in a ball region of an insole cut by the die and a rear region of the die (which was to cut out a heel seat and waist portion of the insole) overlay the first, second and third pieces of the material.
- the press was then operated to cause the die to cut the material to form an assembly comprising a through layer (cut from the first piece) having an outline shape corresponding to that of the insole and two short layers (each having an outline shape corresponding to that of a rear, heel seat and waist portion of the insole), the assembly being such that the outline shape of the short layers corresponded to the outline shape of the rear portion of the through layer.
- the resulting assembly was placed between the platens of a high-frequency welding press, resting on a silicone rubber sheet three-sixteenth of an inch thick having a flexible electrode embedded in it, the sheet being secured to the lower platen and the assembly was covered by a foam silicone rubber sheet one-half inch thick.
- the silicone rubber was provided to prevent loss of heat from the assembly to the metal platens of the press, silicone rubber being a thermally insulating material of low dielectric loss.
- the air line pressure applied was 80 p.s.i. and the ram diameter was 4 /2 inches.
- the input power applied was 1.9 amps and the frequency of the high-frequency field was 39 MHz.
- the assembly was allowed to remain in the press under pressure for seconds and was subject to the highfrequency electric field for the first 9 seconds of this time.
- the assembly was next removed from the highfrequency press and the three layers were found to be firmly bonded together.
- the forepart portion of the insole thus formed was about 2 millimeters in thickness and had a density of about 0.45 grams per cc. (the initial density of the forepart was about 0.40 grams per cc.).
- the heel seat and waist portion of the insole was about 3.10 millimeters in thickness and its density was about 0.78 grams per cc.
- the flexural rigidity of the material of the heel seat and waist portion of the insole was found to be of the same order as the flexural rigidity of Grade 1 shankboard 3 millimeters thick and was found to be considerably greater than the flexural rigidity of the forepart portion of the insole.
- Heel-attaching pins were driven through the heel seat and waist portion of the first illustrative insole and through Grade 1 shankboard 3 millimeters thick: slightly greater loads were needed to pull the heel pin out of the insole made according to this example than were required to pull the pin from the Grade I shankboard.
- the insole of the example was subjected to heating and was then subjected to an insole molding operation, using a commercial twin sole molding machine.
- the molded insole so formed was found to be suitable for use as an insole in the manufacture of shoes.
- Insoles made as described above were suitable for use in the manufacture of mens shoes without any additional treatment: for use in the manufacture of womens shoes the heel seat and waist portion was reinforced in known manner by attaching a metal shank member, using eyelets.
- Example 2 The general procedure of Example I was repeated, except that three short layers of the non-woven bonded fiber batt were used in the heel seat and waist portion.
- the forepart portion of the insole (which consisted of only one layer, the through layer, of the non-woven bonded fiber batt) was slightly over 2 millimeters in thickness and slightly over 0.4 grams per cc. in density.
- the rear, heel seat and waist portion of the insole was 3.6 millimeters thick and had a density of 0.86 grams per cc.
- the forepart portion of this insole had a flexural rigidity similar to that of the forepart portion of the insole of Example 1.
- the flexural rigidity of the heel seat and waist portion of the insole made in this example was noticeably greater than that of the insole of the first example and was of the same order as Grade 1 shankboard 3.5 millimeters thick.
- the flexural rigidity of the heel seat and waist portion of the insole was considerably better than that of a Grade 1 shankboard 3.5 millimeters thick after both had been subjected to soaking in water for 6 hours.
- the load per millimeter thickness of the material required to remove heel attaching nails from the heel seat and waist portion of the insole was significantly greater than that required to remove nails from Grade I shankboard 3.5 millimeters thick, especially after both had been subjected to soaking in water for 6 hours.
- EXAMPLE 3 The methods of Examples 1 and 2 were repeated except that instead of a high-frequency press, a press with heated platens was used to supply heat to the assembly. In each case, the thickness, density, flexural rigidity and the load required to remove the heel pin from the material were found to be about the same as for the first and second products. It was found, however, that there was some tendency for the layers of the product corresponding to Example 2 to delaminate.
- EXAMPLE 4 Insoles were made by methods corresponding to Examples l to 4 with the exception that the different impregant composition was used; namely, a plasticized polystyrene dispersion having a solids content of about 50 percent.
- the insoles were similar in properties to the corresponding ones of the Examples 1 through 4, except that those made using high-frequency heating corresponding to Examples 1 and 2 were slightly less dense than the insoles according to Examples 1 and 2.
- EXAMPLE 5 Further insoles were prepared using a non-woven bonded fiber batt such as in Example I but using an impregant composition comprising parts by weight of an aqueous dispersion of a vinyl chloride copolymer having a solids content of about 55 percent to about 59 percent by weight and 20 parts by weight of an aqueous dispersion of carboxylated high nitrile-content synthetic rubber having a solids content of about 42 percent by weight and containing zinc oxide as a curing agent.
- the impregnated batt was dried as described in Example 1 and the impregnating conditions were so chosen that the ratio of fiber to binder in the dried nonwoven bonded fiber batt was 1:1 by weight.
- a piece 12 by 8 inch of the non-woven fiber batt was placed on the cutting block of a cutting press and a sheet of stiff polyvinyl chloride resin 7% by 8 inch was laid on top of the nonwoven fiber batt with an 8 inch side in alignment with one of the 8 inch sides of the non-woven fiber piece and with the 7% inch sides in alignment with the 12 inch sides of the bonded fiber sheet.
- a further piece of nonwoven bonded fiber batt 7% by 8 inch was laid on top of the polyvinyl chloride sheet.
- An insole assembly was cut from this and the assembly treated in the high frequency press in the manner described in Example 1. In this case the polyvinyl chloride sheet was slightly over one-half mm. thick and had a weight of 900 grams of square meter.
- the resulting insole had a forepart portion, which was 2% mm. thick and had a density of about 0.4 grams per cc. and had a rear, heel seat and waist portion which was about 3 mm. thick and had a density of about 1 gram per cc.
- the heel seat and waist portion of this insole had a slightly greater flexural rigidity than the heel seat and waist portion of the product of the first example.
- the load per millimeter thickness required to pull a heel-attaching nail through the heel seat and waist portion of this insole were considerably greater than that required for the product of Example 1.
- a further insole was made in a manner similar to that just described except that two layers of the polyvinyl chloride sheet material were used.
- the forepart portion of this insole was 2% mm. thick and had a density of about 0.4 grams per cc.
- the rear, heel seat and waist portion of the insole was 3 /2 mm. and had a density of slightly over 1 gram per cc.
- This insole had a slightly greater flexural rigidity than did the product of Example 2 and a considerably greater load was required to pull the heel-attaching nails through the heel seat and waist portion.
- EXAMPLE 6 Insoles were made by procedures corresponding to Examples 1 and 2 with the exception that a small piece of polyvinyl chloride sheet material, one-half mm. thick and having a weight of grams per square meter was placed in the heel seat region prior to assembly under heat and pressure in the high-frequency press so that the polyvinyl chloride sheet becomes an integral part of the insole in the heel seat region into which the heel attaching nails are to be driven.
- An insole comprising a non-woven bonded fiber sheet having outline shape for incorporation in foot wear, said sheet comprising at least one through layer of non-woven fiber bonded with a thermoplastic bonding agent and having an outline shape corresponding to that of the insole and at least one short layer of nonwoven fiber bonded with a thermoplastic bonding agent and joined by said bonding agents to a rear portion of said through layer.
- a rear portion of the insole comprising the through and short layers having a greater density and rigidity than that of the forepart of the insole, the rear portion of the insole being at least as thick as the forepait portion.
- insole as defined in claim 1 comprising a layer of stiff resin sheet material bonded to a non-woven bonded fiber layer in the region of the heel seat of the insole into which heel attaching nails may be driven.
- thermoplastic bonding agent having a softening point below the melting point of the fiber of said layers and above the temperatures to which said insole will be subjected in use.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US473273A US3906570A (en) | 1973-03-20 | 1974-05-24 | Method of making an insole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1410772 | 1972-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3835558A true US3835558A (en) | 1974-09-17 |
Family
ID=10035117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00342999A Expired - Lifetime US3835558A (en) | 1972-03-25 | 1973-03-20 | Insole |
Country Status (11)
Country | Link |
---|---|
US (1) | US3835558A (en) |
JP (1) | JPS497042A (en) |
AU (1) | AU5369873A (en) |
BE (1) | BE797255A (en) |
CA (1) | CA983262A (en) |
DE (1) | DE2314963A1 (en) |
ES (1) | ES413363A1 (en) |
FR (1) | FR2178637A5 (en) |
IT (1) | IT983602B (en) |
NL (1) | NL7304145A (en) |
ZA (1) | ZA732040B (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4232457A (en) * | 1979-01-31 | 1980-11-11 | Mosher Mitchell R | Orthotic insert |
US4481726A (en) * | 1980-04-07 | 1984-11-13 | American Fitness, Inc. | Shoe construction |
US4602442A (en) * | 1982-12-17 | 1986-07-29 | Usm Corporation | Shoe insole and the manufacture thereof |
US4858338A (en) * | 1988-05-18 | 1989-08-22 | Orthopedic Design | Kinetic energy returning shoe |
US4930232A (en) * | 1989-03-28 | 1990-06-05 | The United States Shoe Corporation | Multilayer shoe sole |
US5052130A (en) * | 1987-12-08 | 1991-10-01 | Wolverine World Wide, Inc. | Spring plate shoe |
US5191727A (en) * | 1986-12-15 | 1993-03-09 | Wolverine World Wide, Inc. | Propulsion plate hydrodynamic footwear |
US5315769A (en) * | 1986-12-15 | 1994-05-31 | Barry Daniel T | Teardrop propulsion plate footwear |
US5396719A (en) * | 1992-12-07 | 1995-03-14 | Medical Materials Corporation | Apparatus for maintaining the tuckboard of footwear in a particular shape |
WO1997002764A1 (en) * | 1995-07-12 | 1997-01-30 | Lenkki Oy | Shoe insole and model piece |
US5829171A (en) * | 1996-10-01 | 1998-11-03 | Perfect Impression Footwear Company | Custom-fitting footwear |
US5994245A (en) * | 1995-11-24 | 1999-11-30 | Texel Inc. | Laminated product for use in footwear manufacturing |
US6889452B2 (en) * | 2001-11-14 | 2005-05-10 | Boot Royalty Company, L.P. | Insole for footwear |
US20060265909A1 (en) * | 2000-12-20 | 2006-11-30 | Peter Geisler | Flexible anti-nail protective footwear, flexible anti-nail protective clothing article, and methods for manufacturing the same |
US20070163150A1 (en) * | 2006-01-13 | 2007-07-19 | Union Footwear Technologies Co. Ltd. | Insole board for high-heel shoe |
WO2011146927A1 (en) * | 2010-05-21 | 2011-11-24 | George Shrum | Insole for footwear |
US20130160324A1 (en) * | 2011-12-23 | 2013-06-27 | Nike, Inc. | Article of footwear having an elevated plate sole structure |
US20140245640A1 (en) * | 2013-03-01 | 2014-09-04 | Nike, Inc. | Foot-support structures for articles of footwear |
US20140360052A1 (en) * | 2013-06-11 | 2014-12-11 | K-Swiss, Inc. | Article of footwear, elements thereof, and related methods of manufacturing |
EP2040576B1 (en) | 2006-07-14 | 2016-08-31 | Footbalance System Oy | Individually formed footwear |
US9560896B1 (en) | 2014-02-12 | 2017-02-07 | Soxsols, Llc | Insole for footwear |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7806461A (en) * | 1977-06-21 | 1978-12-27 | Toho Beslon Co | INSOLE AND METHOD OF MANUFACTURE THEREOF. |
JPS58115159A (en) * | 1981-12-29 | 1983-07-08 | ミドリシ−・エム・ビ−株式会社 | Production of panel product |
US4603075A (en) * | 1984-04-10 | 1986-07-29 | Texon, Inc. | Insole composites and processes for manufacturing insole composites and footwear materials |
SE523468C2 (en) * | 2001-06-27 | 2004-04-20 | Camp Scandinavia Ab | Orthopedic foot sole for improved gait and prosthesis, shoe or orthosis including the sole |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1843349A (en) * | 1929-09-30 | 1932-02-02 | Brown Co | Artificial leather fabrication |
US2130968A (en) * | 1938-01-03 | 1938-09-20 | Arthur C Sewall | Insole blank and method of making insoles therefrom |
US2231552A (en) * | 1937-07-14 | 1941-02-11 | Arthur C Sewall | Insole and material for making the same |
US2346279A (en) * | 1941-11-03 | 1944-04-11 | United Shoe Machinery Corp | Manufacture of insoles |
US2599317A (en) * | 1946-08-02 | 1952-06-03 | Owens Corning Fiberglass Corp | Shoe insole |
US3601908A (en) * | 1969-05-15 | 1971-08-31 | Francis M Gilkerson | Molded insole |
-
1973
- 1973-03-16 CA CA166,589A patent/CA983262A/en not_active Expired
- 1973-03-20 US US00342999A patent/US3835558A/en not_active Expired - Lifetime
- 1973-03-22 IT IT21971/73A patent/IT983602B/en active
- 1973-03-23 NL NL7304145A patent/NL7304145A/xx unknown
- 1973-03-23 AU AU53698/73A patent/AU5369873A/en not_active Expired
- 1973-03-23 ZA ZA732040A patent/ZA732040B/en unknown
- 1973-03-23 FR FR7310622A patent/FR2178637A5/fr not_active Expired
- 1973-03-23 BE BE129198A patent/BE797255A/en unknown
- 1973-03-24 ES ES413363A patent/ES413363A1/en not_active Expired
- 1973-03-26 DE DE19732314963 patent/DE2314963A1/en active Pending
- 1973-03-26 JP JP48034429A patent/JPS497042A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1843349A (en) * | 1929-09-30 | 1932-02-02 | Brown Co | Artificial leather fabrication |
US2231552A (en) * | 1937-07-14 | 1941-02-11 | Arthur C Sewall | Insole and material for making the same |
US2130968A (en) * | 1938-01-03 | 1938-09-20 | Arthur C Sewall | Insole blank and method of making insoles therefrom |
US2346279A (en) * | 1941-11-03 | 1944-04-11 | United Shoe Machinery Corp | Manufacture of insoles |
US2599317A (en) * | 1946-08-02 | 1952-06-03 | Owens Corning Fiberglass Corp | Shoe insole |
US3601908A (en) * | 1969-05-15 | 1971-08-31 | Francis M Gilkerson | Molded insole |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4232457A (en) * | 1979-01-31 | 1980-11-11 | Mosher Mitchell R | Orthotic insert |
US4481726A (en) * | 1980-04-07 | 1984-11-13 | American Fitness, Inc. | Shoe construction |
US4602442A (en) * | 1982-12-17 | 1986-07-29 | Usm Corporation | Shoe insole and the manufacture thereof |
US5191727A (en) * | 1986-12-15 | 1993-03-09 | Wolverine World Wide, Inc. | Propulsion plate hydrodynamic footwear |
US5315769A (en) * | 1986-12-15 | 1994-05-31 | Barry Daniel T | Teardrop propulsion plate footwear |
US5052130A (en) * | 1987-12-08 | 1991-10-01 | Wolverine World Wide, Inc. | Spring plate shoe |
US4858338A (en) * | 1988-05-18 | 1989-08-22 | Orthopedic Design | Kinetic energy returning shoe |
US4930232A (en) * | 1989-03-28 | 1990-06-05 | The United States Shoe Corporation | Multilayer shoe sole |
US5396719A (en) * | 1992-12-07 | 1995-03-14 | Medical Materials Corporation | Apparatus for maintaining the tuckboard of footwear in a particular shape |
WO1997002764A1 (en) * | 1995-07-12 | 1997-01-30 | Lenkki Oy | Shoe insole and model piece |
US5994245A (en) * | 1995-11-24 | 1999-11-30 | Texel Inc. | Laminated product for use in footwear manufacturing |
US5829171A (en) * | 1996-10-01 | 1998-11-03 | Perfect Impression Footwear Company | Custom-fitting footwear |
US20060265909A1 (en) * | 2000-12-20 | 2006-11-30 | Peter Geisler | Flexible anti-nail protective footwear, flexible anti-nail protective clothing article, and methods for manufacturing the same |
US7627962B2 (en) * | 2000-12-20 | 2009-12-08 | Arbesko Ab | Flexible anti-nail protective footwear, flexible anti-nail protective clothing article, and methods for manufacturing the same |
US6889452B2 (en) * | 2001-11-14 | 2005-05-10 | Boot Royalty Company, L.P. | Insole for footwear |
US20060053657A1 (en) * | 2001-11-14 | 2006-03-16 | Ailey James H | Insole for footwear |
US20070144038A1 (en) * | 2001-11-14 | 2007-06-28 | Ailey James H | Insole for footwear |
US7637034B2 (en) | 2001-11-14 | 2009-12-29 | Boot Royalty Company, L.P. | Insole for footwear |
US20070163150A1 (en) * | 2006-01-13 | 2007-07-19 | Union Footwear Technologies Co. Ltd. | Insole board for high-heel shoe |
EP2040576B1 (en) | 2006-07-14 | 2016-08-31 | Footbalance System Oy | Individually formed footwear |
WO2011146927A1 (en) * | 2010-05-21 | 2011-11-24 | George Shrum | Insole for footwear |
US10758002B2 (en) | 2011-12-23 | 2020-09-01 | Nike, Inc. | Article of footwear having an elevated plate sole structure |
US20130160324A1 (en) * | 2011-12-23 | 2013-06-27 | Nike, Inc. | Article of footwear having an elevated plate sole structure |
US9491984B2 (en) * | 2011-12-23 | 2016-11-15 | Nike, Inc. | Article of footwear having an elevated plate sole structure |
US11944155B2 (en) | 2011-12-23 | 2024-04-02 | Nike, Inc. | Article of footwear having an elevated plate sole structure |
US20140245640A1 (en) * | 2013-03-01 | 2014-09-04 | Nike, Inc. | Foot-support structures for articles of footwear |
US9572394B2 (en) * | 2013-03-01 | 2017-02-21 | Nike, Inc. | Foot-support structures for articles of footwear |
US20140360052A1 (en) * | 2013-06-11 | 2014-12-11 | K-Swiss, Inc. | Article of footwear, elements thereof, and related methods of manufacturing |
US9622540B2 (en) * | 2013-06-11 | 2017-04-18 | K-Swiss, Inc. | Article of footwear, elements thereof, and related methods of manufacturing |
US10624420B2 (en) | 2013-06-11 | 2020-04-21 | K-Swiss, Inc. | Article of footwear, elements thereof, and related methods of manufacturing |
US9560896B1 (en) | 2014-02-12 | 2017-02-07 | Soxsols, Llc | Insole for footwear |
US10045590B2 (en) | 2014-02-12 | 2018-08-14 | Soxsols, Llc | Insole for footwear |
Also Published As
Publication number | Publication date |
---|---|
BE797255A (en) | 1973-07-16 |
NL7304145A (en) | 1973-09-27 |
JPS497042A (en) | 1974-01-22 |
FR2178637A5 (en) | 1973-11-09 |
DE2314963A1 (en) | 1973-09-27 |
CA983262A (en) | 1976-02-10 |
ZA732040B (en) | 1974-09-25 |
ES413363A1 (en) | 1976-01-16 |
IT983602B (en) | 1974-11-11 |
AU5369873A (en) | 1974-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3835558A (en) | Insole | |
US3906570A (en) | Method of making an insole | |
US4602442A (en) | Shoe insole and the manufacture thereof | |
US4575446A (en) | Process for producing an insole for shoes | |
US2331321A (en) | Process of making composite fabric | |
CN109561747A (en) | Shoes plate | |
US2651118A (en) | Molding soles and heels to uppers | |
KR102141587B1 (en) | An outsole structure and a method for manufacturing the same | |
US1923169A (en) | Shoe sole and method of making the same | |
EP0414395B1 (en) | Cushion insole/insock material | |
US3284872A (en) | Method of making needled shoe stiffening material | |
US5164240A (en) | Composite product for one-piece shoe counters | |
US4649586A (en) | Sole for athletic shoe and method of making the same | |
US3442032A (en) | Shoe manufacture | |
CA1321512C (en) | Method of making a storable handleable fibrous mat | |
US2656622A (en) | Counter construction and method | |
KR102127505B1 (en) | Porous Midsole Manufacturing Method and Porous Midsole Using It | |
JPH0723803A (en) | Insole of shoes and its production | |
US5084332A (en) | Nonwoven fabric for shoe counters | |
JP2646016B2 (en) | Shin material for shoes | |
KR20020004964A (en) | Sheet material for use in the manufacture of shoes, method of making same and shoe insole | |
KR100707344B1 (en) | The heat fusion production method for middle layer of shoe using recycled polyethylene sheets | |
KR200214517Y1 (en) | Waterproof shoe midsole | |
GB2110990A (en) | Shoe construction | |
GB1572162A (en) | Manufacture of shoe insoles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: EMHART INDUSTRIES, INC., A CONNECTICUT STOCK CORP. Free format text: MERGER;ASSIGNOR:EMHART ENTERPRISES CORP., A NJ CORP.;REEL/FRAME:004870/0112 Effective date: 19871216 Owner name: EMHART ENTERPRISES CORP. Free format text: CHANGE OF NAME;ASSIGNOR:USM CORPORATION;REEL/FRAME:004876/0901 Effective date: 19871104 Owner name: EMHART INDUSTRIES, INC.,CONNECTICUT Free format text: MERGER;ASSIGNOR:EMHART ENTERPRISES CORP., A NJ CORP.;REEL/FRAME:004870/0112 Effective date: 19871216 |
|
AS | Assignment |
Owner name: TEXON FOOTWEAR INC., A CORP. OF DE, DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EMHART INDUSTRIES, INC.;REEL/FRAME:005238/0911 Effective date: 19890924 |
|
AS | Assignment |
Owner name: EMHART HOLDINGS INC., DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:TEXON FOOTWEAR INC., A CORP OF DE;REEL/FRAME:005383/0077 Effective date: 19900326 |
|
AS | Assignment |
Owner name: TEXON FOOTWEAR INVESTMENTS INC., DRUMMOND PLAZA OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EMHART HOLDINGS INC., A CORP. OF DELAWARE;REEL/FRAME:005515/0019 Effective date: 19900328 |
|
AS | Assignment |
Owner name: DVSG HOLDING GMBH, WESTERBACHSTRASSE 47, D-6000 FR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:TEXON FOOTWEAR INVESTMENTS INC., A CORP. OF DE;REEL/FRAME:005652/0621 Effective date: 19900330 |