CA1108396A - Cushion pad for sport shoes and the like and method for fabricating same - Google Patents
Cushion pad for sport shoes and the like and method for fabricating sameInfo
- Publication number
- CA1108396A CA1108396A CA318,107A CA318107A CA1108396A CA 1108396 A CA1108396 A CA 1108396A CA 318107 A CA318107 A CA 318107A CA 1108396 A CA1108396 A CA 1108396A
- Authority
- CA
- Canada
- Prior art keywords
- molded sheet
- arch
- leading edge
- heel
- pad
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot
Abstract
ABSTRACT OF THE DISCLOSURE
There is disclosed a cushion pad for sport shoes and the like and a method for manufacturing such a pad and the combination of such a pad with a sport shoe and the like. The pad of the present invention is fabricated from a flat web of closed pore foam of cross-linked ethylene vinyl acetate-low density polyethylene copolymer. The pad is formed between two opposing molds to present a shape having a cup-like depression adapted and constructed to accept essentially the heel portion of a human being. The so-formed pad is then cut out of the remainder of the formed web in a manner whereby the pad provides support from just in back of the first metatarsal joint to the sides and back of the calcaneus. It has been found that the resultant pad made within the purview of the invention requires only a few sizes to fit most of the feet of possible users.
There is disclosed a cushion pad for sport shoes and the like and a method for manufacturing such a pad and the combination of such a pad with a sport shoe and the like. The pad of the present invention is fabricated from a flat web of closed pore foam of cross-linked ethylene vinyl acetate-low density polyethylene copolymer. The pad is formed between two opposing molds to present a shape having a cup-like depression adapted and constructed to accept essentially the heel portion of a human being. The so-formed pad is then cut out of the remainder of the formed web in a manner whereby the pad provides support from just in back of the first metatarsal joint to the sides and back of the calcaneus. It has been found that the resultant pad made within the purview of the invention requires only a few sizes to fit most of the feet of possible users.
Description
33~
BACKGROUND OF 'Il-le IN~ENTION
___ ___ lt will be appreciated that much of the population, both male and female, have taken up the laudable sport of running or jogging all in the name of acquiring aerobic exercise.
Unfortunately, most runners do not have access to what is known as a cinder track which has the ability to soften or cushion considerably the impact of a r~mner. ~lard surfaces as are normally found for use by r~mnexs are extremely injurious to the heels oE runners unless proper precautions are taken to cushion the impact of the runner's foot on the rumling surface.
The need for a properly cushioned athletic shoe is even more important with regard to racing shoes which may be only two-thirds the weight of a long distance running shoe or ~ ~ -a training shoe. ILong distance is usually defined as being greater than one mile.) Consequent]y, with a racing shoe greater provision must be made to provide good cushioning properties to ~he heel; i.e., especially to the calcaneus. It has been discovered that if the calcaneus is not properly cushioned, a jarring effect can be transferred through the ankle and up the leg to the spine, extending as far as the neck portion of the spine. Long periods of such mistreatment of the calcaneus might result in the formation of bone spurs thereon and other bones associated therewith.
Fortunately, the calcaneus ordi.narily has a consider-able layer of fat around the outwardly facing portion which provides some useful padding or cushioning. ~lowever, there is a tendency for some of the fat to be dissipated when if is abused by overuse. In such a situation, prior art concepts 33~ ~
incl~cle an attelllpt to c~lp the fat and -to urge it towards the center portion of the bottom of the calcaneus to emphasize its thickness where it is needed.
In some instances this has been accomplished by using a plastic cup~like insert to, in effect, narrow the counter of the~shoe to push the fat as here-tofore noted. (The counter is, of course, a form-conferring stiffener for the heel portion of the shoe).
In special circumstances it is often necessary to enlist the aid of a podiatrist who may prescribe arl orthotic of post-formable material. Such a device may be constructed of a closed cell polyethylene foam having thermo-1~ forming or compression molding properties. The podiatrist conforms the top surface of the device to the foot by pressure and heat. ~he bottom of the device is laboriously formed to the shoe by employing a grinding wheel. ~lard orthotics are also known which are designed for other purposes.
In any event a useful cushion pad deuice should also provide arch support extending from just in back of the first metatarsal joint to the back of the calcaneus. Normal arch support arrangements in shoes have been dis-covered to be of minimal value in this regard.
SUMMARY OF T~ INV~NTION
According to one aspect of the present inven~ion there is provided a cushion pad for shoes consisting essentially of a single molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configuration conforming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe; said molded sheet having an inside edge portion which forms an upstanding arch support inside side wall extending from said leading edge; said molded sheet having an upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof said vertical wall gradually diminishing in height to merge with an outside ..~.`~
eclge portion of the nlolded sheet at a substantial distance from said beginning ~ -leading edge.
The pad of the present invention provides calcaneus support and relief from jarring.
According ~o another aspec~ of the present invention there is provided the cushion pad of the above wherein the upstanding substantially vertical wall portion extencling from said arch support side wall arcuately around the heel portion possesses an upwardly facing leading edge that is substantially in a horizontal plane.
According to another aspect o the present invention there is provided in combination, a shoe and a cushioning means therein comprising a molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configura-tion conforming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe; said molded sheet having an inside edge portion which forms an upstand-ing arch support inside side wall extending from said leading edge; said mold-ed sheet having an upstanding subs~antially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof~ said vertical wall gradually diminishing in height to merge with an outside edge portion of the molded sheet at a substantial distance from said beginning leading edge~ and a planar elongated resilient web fixedly positioned internally of said molded sheet and extending forwardly therefrom substantially beyond said leading edge of said molded sheet.
The closed cell foam material is preferably a cross-linked ethylene vinyl acetate-low density polyethylene copolymer. In molding~ only four sizes need be formed for the entire range of men's and women's sizes. Once suitably molded and cut the device is inserted in a shoe under the sock liner.
The cushioning means or pad may be abricated by positioning a web 3~
of closed cell foalTl ma-terial between open male and female complementary molds~
molding said material between said molds, ejecting said molded material from said molds~ trimming said material to cut away extraneous portions of the material, said molds being adapted and constructed to produce a cushion pad for support of the heel and arch portions of a user's foot and having heel and arch portions of configuration conforming to those portions of the foot being supportedJ said cushion pad having a forwardly extending leading edge for disposition in back of -the irst metatarsal joint when said cushion pad is in place in a shoe; saicl pad having an inside edge portion which forms an upstanding arch support inside side wall, said molded sheet having an upstand-ing substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof~ said vertical wall gradually diminishing in height to merge with an outside edge portion of the cushion pad at a substantial distance from said beginning leading edge.
The molds may be supplied with suitable heating and pressurizing means, or compression molding techniques may be employed without heat, to deform the web and cause it to assume the desired proportions and configura-tion of the device of the present invention. It has been found efficacious to mold a plurality of the devices of the present invention at one time from a single relatively large web of material. Subsequently, after cooling, the shapes imparted are maintained; each of the pads of the present invention are cut out of the remaining portion either manually as with a pair of scissors or by a suitable and conventional die cutting device.
In the drawings~
Figure 1 is a perspective view of upper and lower molds ready for acceptance of a ~o-be-deformed sheet material.
Figure 2 is a cross-sectional view of the two molds of Figure 1 with a deformed~shee~ material therebetween.
Figure 3 is a perspective ~iew of the deformed sheet material.
Figure ~ is a cushion pad of the present invention.
- 4a -!
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~3~33~
~:igure 5 is a cross-section taken along line 5-5 of Fi.gure 4.
Figure 6 is a cross-section taken along line 6-6 of Figure 4.
Figure 7 is an exploded perspective view showing the relating position of the cush:ion pad of the present invention.
- 4b -'f3~
DETAILED Dr.SCRIPTION (~E~ T~IF~ VENTION
Attention is invited to F:igure 1 from which it will be discerned that a sheet or web o:f materlal 11 of 5 mm in thick-ness is about to be positioned between opposed separa-ted compress-ion molds. The upper mold 12 is a male mold while the lower mold 13 is a Eemale mold. The two molds together define cavities 1~
for establishing the unique configuration of the cushion or pad 15 of the present invention; see ~igure ~.
Before proceeding with this detailed description, a word must be stated with regard to the material of which the cushion or pad of the present invention is constructed. While numercus materials may in fact be utilizable, it has been found to be most propitious to employ a sheet of closed cell, foamed cross-linked ethylene vinyl acetate-low density polyethylene co-polymer having a density of ~5-55 kg/m3. It is contemplated that the material have a thickness of between about 3 mm to 10 mm with 5 mm being the preEerred embodiment. A suitable material is sold by United Foam Plastics Corporation under the trademark of ;:
EVAZOTE. ~ :
When the web material 11 has been suitably positioned, the molds are brought together by respective driven rod means 16, shown schematically. Turning to Eigure 2, it will be noted that the web has now been suitably deformed to produce at least a pair of deformed units 17. These units in this embodiment are depicted for a right shoe and a left shoe. It should be appreciated that the units may be produced in pairs or may all be for either the right shoe or conversely all for the left shoe. In such a situation differing molds are contemplated so that a sufficient number of each may be fabricated. Likewise, the number of units may be increased to any desirable number that may be accommodated 3~
successf-ully by the mold. Additionally, the s.ize confi.guration wlll also have to differ from embodiment to em~odiment so that lat least four sizes may be molded wllich will extend over the entire range of sizes necessary for both won~en~s and men~s normal Ijshoe sizes.
! Fi~ure 3 shows the web 11 after it has been e~jec-ted Ifrom the mold wi.th the unlts 17 sti.ll together ready for cutting~
¦IThe flat non-deformed portion is care~ully trimmed away from the units 17, thereby no-t only separating them but also producing the pad 15 of the present lnvention. The pad 15 shown in Figure 4 is for a left shoe.
For a consideration of the pad 15, attention is invited ,jto Figures ~ 5 and 6. The pad 15 has a bottom portion 21. Alon~
~the right side of the pad there is an upwardly projecting arch support portion 20. The forward leadlng edge 22 of the pad ter- I
minates in a relatively smooth inclined edge that is comfortable ¦under the i.nstep of the wearerl The left or outer side of the jpad, opposite to the arch support 20, has a relatively low -forward ~side portion 23~ Rearwardly from the highest point o~ the arch support portion 20~ the edge of the pad phases downwardly ln ~eight to produce a lower arcuate wall 24 whi~h extends all the ¦¦way rearwardly and on around the heel and then diminlshes in ¦I,vertical height to merge with the aforementioned relatively low ¦forward side portion 23.
The p~d of the present invention may be readily installed li l¦in a shoe for use. According~y~ attention is invited to Figure ,r~ in which an athletic track shoe 30 for the left foot is depi.cted.
~or the purpose o~ clarity, the pad of the present invention is ~shown only partially insexted into the shoe. ~The pad i.s ad~justed ~nce it is in the rearward portion of the shoe so that it lies ~nugly against the counter area 31 of the shoe~ and is glued into ; _6-,.
: l l li :
posi-tion. To provlde even :~urt~her enhanced comrort, Figure 7 ¦1 also illustrates a sock li.ner 3Z which ls lnserted into the shoe Iland glued therein to s~ndwich the pad of the present invention jlbetween the llner and the lnside of the shoe. 1.
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,
BACKGROUND OF 'Il-le IN~ENTION
___ ___ lt will be appreciated that much of the population, both male and female, have taken up the laudable sport of running or jogging all in the name of acquiring aerobic exercise.
Unfortunately, most runners do not have access to what is known as a cinder track which has the ability to soften or cushion considerably the impact of a r~mner. ~lard surfaces as are normally found for use by r~mnexs are extremely injurious to the heels oE runners unless proper precautions are taken to cushion the impact of the runner's foot on the rumling surface.
The need for a properly cushioned athletic shoe is even more important with regard to racing shoes which may be only two-thirds the weight of a long distance running shoe or ~ ~ -a training shoe. ILong distance is usually defined as being greater than one mile.) Consequent]y, with a racing shoe greater provision must be made to provide good cushioning properties to ~he heel; i.e., especially to the calcaneus. It has been discovered that if the calcaneus is not properly cushioned, a jarring effect can be transferred through the ankle and up the leg to the spine, extending as far as the neck portion of the spine. Long periods of such mistreatment of the calcaneus might result in the formation of bone spurs thereon and other bones associated therewith.
Fortunately, the calcaneus ordi.narily has a consider-able layer of fat around the outwardly facing portion which provides some useful padding or cushioning. ~lowever, there is a tendency for some of the fat to be dissipated when if is abused by overuse. In such a situation, prior art concepts 33~ ~
incl~cle an attelllpt to c~lp the fat and -to urge it towards the center portion of the bottom of the calcaneus to emphasize its thickness where it is needed.
In some instances this has been accomplished by using a plastic cup~like insert to, in effect, narrow the counter of the~shoe to push the fat as here-tofore noted. (The counter is, of course, a form-conferring stiffener for the heel portion of the shoe).
In special circumstances it is often necessary to enlist the aid of a podiatrist who may prescribe arl orthotic of post-formable material. Such a device may be constructed of a closed cell polyethylene foam having thermo-1~ forming or compression molding properties. The podiatrist conforms the top surface of the device to the foot by pressure and heat. ~he bottom of the device is laboriously formed to the shoe by employing a grinding wheel. ~lard orthotics are also known which are designed for other purposes.
In any event a useful cushion pad deuice should also provide arch support extending from just in back of the first metatarsal joint to the back of the calcaneus. Normal arch support arrangements in shoes have been dis-covered to be of minimal value in this regard.
SUMMARY OF T~ INV~NTION
According to one aspect of the present inven~ion there is provided a cushion pad for shoes consisting essentially of a single molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configuration conforming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe; said molded sheet having an inside edge portion which forms an upstanding arch support inside side wall extending from said leading edge; said molded sheet having an upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof said vertical wall gradually diminishing in height to merge with an outside ..~.`~
eclge portion of the nlolded sheet at a substantial distance from said beginning ~ -leading edge.
The pad of the present invention provides calcaneus support and relief from jarring.
According ~o another aspec~ of the present invention there is provided the cushion pad of the above wherein the upstanding substantially vertical wall portion extencling from said arch support side wall arcuately around the heel portion possesses an upwardly facing leading edge that is substantially in a horizontal plane.
According to another aspect o the present invention there is provided in combination, a shoe and a cushioning means therein comprising a molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configura-tion conforming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe; said molded sheet having an inside edge portion which forms an upstand-ing arch support inside side wall extending from said leading edge; said mold-ed sheet having an upstanding subs~antially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof~ said vertical wall gradually diminishing in height to merge with an outside edge portion of the molded sheet at a substantial distance from said beginning leading edge~ and a planar elongated resilient web fixedly positioned internally of said molded sheet and extending forwardly therefrom substantially beyond said leading edge of said molded sheet.
The closed cell foam material is preferably a cross-linked ethylene vinyl acetate-low density polyethylene copolymer. In molding~ only four sizes need be formed for the entire range of men's and women's sizes. Once suitably molded and cut the device is inserted in a shoe under the sock liner.
The cushioning means or pad may be abricated by positioning a web 3~
of closed cell foalTl ma-terial between open male and female complementary molds~
molding said material between said molds, ejecting said molded material from said molds~ trimming said material to cut away extraneous portions of the material, said molds being adapted and constructed to produce a cushion pad for support of the heel and arch portions of a user's foot and having heel and arch portions of configuration conforming to those portions of the foot being supportedJ said cushion pad having a forwardly extending leading edge for disposition in back of -the irst metatarsal joint when said cushion pad is in place in a shoe; saicl pad having an inside edge portion which forms an upstanding arch support inside side wall, said molded sheet having an upstand-ing substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof~ said vertical wall gradually diminishing in height to merge with an outside edge portion of the cushion pad at a substantial distance from said beginning leading edge.
The molds may be supplied with suitable heating and pressurizing means, or compression molding techniques may be employed without heat, to deform the web and cause it to assume the desired proportions and configura-tion of the device of the present invention. It has been found efficacious to mold a plurality of the devices of the present invention at one time from a single relatively large web of material. Subsequently, after cooling, the shapes imparted are maintained; each of the pads of the present invention are cut out of the remaining portion either manually as with a pair of scissors or by a suitable and conventional die cutting device.
In the drawings~
Figure 1 is a perspective view of upper and lower molds ready for acceptance of a ~o-be-deformed sheet material.
Figure 2 is a cross-sectional view of the two molds of Figure 1 with a deformed~shee~ material therebetween.
Figure 3 is a perspective ~iew of the deformed sheet material.
Figure ~ is a cushion pad of the present invention.
- 4a -!
''~'J<
~3~33~
~:igure 5 is a cross-section taken along line 5-5 of Fi.gure 4.
Figure 6 is a cross-section taken along line 6-6 of Figure 4.
Figure 7 is an exploded perspective view showing the relating position of the cush:ion pad of the present invention.
- 4b -'f3~
DETAILED Dr.SCRIPTION (~E~ T~IF~ VENTION
Attention is invited to F:igure 1 from which it will be discerned that a sheet or web o:f materlal 11 of 5 mm in thick-ness is about to be positioned between opposed separa-ted compress-ion molds. The upper mold 12 is a male mold while the lower mold 13 is a Eemale mold. The two molds together define cavities 1~
for establishing the unique configuration of the cushion or pad 15 of the present invention; see ~igure ~.
Before proceeding with this detailed description, a word must be stated with regard to the material of which the cushion or pad of the present invention is constructed. While numercus materials may in fact be utilizable, it has been found to be most propitious to employ a sheet of closed cell, foamed cross-linked ethylene vinyl acetate-low density polyethylene co-polymer having a density of ~5-55 kg/m3. It is contemplated that the material have a thickness of between about 3 mm to 10 mm with 5 mm being the preEerred embodiment. A suitable material is sold by United Foam Plastics Corporation under the trademark of ;:
EVAZOTE. ~ :
When the web material 11 has been suitably positioned, the molds are brought together by respective driven rod means 16, shown schematically. Turning to Eigure 2, it will be noted that the web has now been suitably deformed to produce at least a pair of deformed units 17. These units in this embodiment are depicted for a right shoe and a left shoe. It should be appreciated that the units may be produced in pairs or may all be for either the right shoe or conversely all for the left shoe. In such a situation differing molds are contemplated so that a sufficient number of each may be fabricated. Likewise, the number of units may be increased to any desirable number that may be accommodated 3~
successf-ully by the mold. Additionally, the s.ize confi.guration wlll also have to differ from embodiment to em~odiment so that lat least four sizes may be molded wllich will extend over the entire range of sizes necessary for both won~en~s and men~s normal Ijshoe sizes.
! Fi~ure 3 shows the web 11 after it has been e~jec-ted Ifrom the mold wi.th the unlts 17 sti.ll together ready for cutting~
¦IThe flat non-deformed portion is care~ully trimmed away from the units 17, thereby no-t only separating them but also producing the pad 15 of the present lnvention. The pad 15 shown in Figure 4 is for a left shoe.
For a consideration of the pad 15, attention is invited ,jto Figures ~ 5 and 6. The pad 15 has a bottom portion 21. Alon~
~the right side of the pad there is an upwardly projecting arch support portion 20. The forward leadlng edge 22 of the pad ter- I
minates in a relatively smooth inclined edge that is comfortable ¦under the i.nstep of the wearerl The left or outer side of the jpad, opposite to the arch support 20, has a relatively low -forward ~side portion 23~ Rearwardly from the highest point o~ the arch support portion 20~ the edge of the pad phases downwardly ln ~eight to produce a lower arcuate wall 24 whi~h extends all the ¦¦way rearwardly and on around the heel and then diminlshes in ¦I,vertical height to merge with the aforementioned relatively low ¦forward side portion 23.
The p~d of the present invention may be readily installed li l¦in a shoe for use. According~y~ attention is invited to Figure ,r~ in which an athletic track shoe 30 for the left foot is depi.cted.
~or the purpose o~ clarity, the pad of the present invention is ~shown only partially insexted into the shoe. ~The pad i.s ad~justed ~nce it is in the rearward portion of the shoe so that it lies ~nugly against the counter area 31 of the shoe~ and is glued into ; _6-,.
: l l li :
posi-tion. To provlde even :~urt~her enhanced comrort, Figure 7 ¦1 also illustrates a sock li.ner 3Z which ls lnserted into the shoe Iland glued therein to s~ndwich the pad of the present invention jlbetween the llner and the lnside of the shoe. 1.
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,
Claims (18)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A cushion pad for shoes consisting essentially of a single molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configuration con-forming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe;
said molded sheet having an inside edge portion which forms an upstanding arch support inside side wall extending from said leading edge; said molded sheet having an upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof said vertical wall gradually diminishing in height to merge with an outside edge portion of the molded sheet at a substantial distance from said beginning leading edge.
said molded sheet having an inside edge portion which forms an upstanding arch support inside side wall extending from said leading edge; said molded sheet having an upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof said vertical wall gradually diminishing in height to merge with an outside edge portion of the molded sheet at a substantial distance from said beginning leading edge.
2. The cushion pad of claim 1 wherein the closed cell foam material is a cross-linked ethylene vinyl acetate-low density polyethylene copolymer.
3. The cushion pad of claim 2 wherein the material is between about 3 mm to 10 mm in thickness.
4. The cushion pad of claim 3 wherein the material is about 5 mm in thickness.
5. The cushion pad of claim 2 wherein the foam material has a density of 45.55 kg/m3.
6. The cushion pad of claim 1 wherein the upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion possesses an upwardly facing leading edge that is substantially in a horizontal plane.
7. A cushioning means for shoes comprising a molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configuration conforming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe; said molded sheet having an inside edge portion which forms an upstanding arch support inside side wall extending from said leading edge; said molded sheet having an upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion to an outer side thereof, said vertical wall gradually diminishing in height to merge with an outside edge portion of the molded sheet at a substantial distance from said beginning leading edge, and a planar elongated resilient web fixedly positioned internal-ly of said molded sheet and extending forwardly therefrom substantially beyond said leading edge of said molded sheet.
8. The cushioning means of claim 7 wherein the molded sheet of closed cell foam material is a cross-linked ethylene vinyl acetate-low density poly-ethylene copolymer.
9. The cushioning means of claim 8 wherein the molded sheet of material is about 3 mm to 10 mm in thickness.
10. The cushioning means of claim 9 wherein the molded sheet of material is about 5 mm in thickness.
11. The cushioning means of claim 8 wherein the molded sheet of foam material has a density of 45.55 kg/m3.
12. The cushioning means of claim 7 wherein the upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion possesses an upwardly facing leading edge that is sub-stantially in a horizontal plane.
13. In combination, a shoe and a cushioning means therein comprising a molded sheet of closed cell foam material adapted to support the calcaneus and the arch of a user's foot and having heel and arch portions of configura-tion conforming to the arch and heel portions of the foot being supported, said molded sheet having a forwardly extending leading edge for disposition in back of the first metatarsal joint when said cushion pad is in place in a shoe; said molded sheet having an inside edge portion which forms an upstand-ing arch support inside side wall extending from said leading edge; said molded sheet having an upstanding substantially vertical wall portion extend-ing from said arch support side wall arcuately around the heel portion to an outer side thereof, said vertical wall gradually diminishing in height to merge with an outside edge portion of the molded sheet at a substantial distance from said beginning leading edge, and a planar elongated resilient web fixedly positioned internally of said molded sheet and extending forwardly therefrom substantially beyond said leading edge of said molded sheet.
14. The combination of claim 13 wherein the molded sheet of closed cell foam material is a cross-linked ethylene vinyl acetate-low density polyethy-lene copolymer.
15. The combination of claim 14 wherein the molded sheet of material is between about 3 mm to 10 mm in thickness.
16. The combination of claim 15 wherein the molded sheet of material is about 5 mm in thickness.
17. The combination of claim 14 wherein the molded sheet of foam material has a density of 45.55 kg/m3.
18. The combination of claim 13 wherein the upstanding substantially vertical wall portion extending from said arch support side wall arcuately around the heel portion possesses an upwardly facing leading edge that is substantially in a horizontal plane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86115377A | 1977-12-16 | 1977-12-16 | |
| US861,153 | 1977-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1108396A true CA1108396A (en) | 1981-09-08 |
Family
ID=25335037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA318,107A Expired CA1108396A (en) | 1977-12-16 | 1978-12-18 | Cushion pad for sport shoes and the like and method for fabricating same |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5929242B2 (en) |
| AU (1) | AU522897B2 (en) |
| BE (1) | BE872840A (en) |
| CA (1) | CA1108396A (en) |
| DE (1) | DE2853982A1 (en) |
| DK (1) | DK156241C (en) |
| FR (1) | FR2411582A1 (en) |
| GB (1) | GB2010068B (en) |
| IE (1) | IE47537B1 (en) |
| NL (1) | NL186060C (en) |
| NZ (1) | NZ189191A (en) |
| PH (1) | PH18192A (en) |
| SE (1) | SE438245B (en) |
| ZA (1) | ZA786873B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019673A1 (en) * | 1979-05-29 | 1980-12-10 | Murray Richard Davidson | Foot cushioning device |
| DE3011847A1 (en) * | 1980-03-27 | 1981-10-01 | Fa. Carl Freudenberg, 6940 Weinheim | WEDGE |
| JPS59196103U (en) * | 1983-06-13 | 1984-12-27 | 江原 優子 | short shoes |
| US4764880A (en) * | 1986-01-09 | 1988-08-16 | Gerber Garment Technology, Inc. | Compound plotting apparatus and related method of operation |
| DE3604958A1 (en) * | 1986-02-17 | 1987-08-20 | Achim Mayer | Method of damping the shocks transmitted to the human organism during walking or running |
| FR2629692A1 (en) * | 1988-04-06 | 1989-10-13 | Saprimac Ste Nouvelle | Removable comfort and hygiene insole for shoes, particularly sports or leisure shoes, and method for manufacturing such an insole |
| AT398157B (en) * | 1990-11-21 | 1994-10-25 | M & C Oswald Gmbh | SHOE WITH A MULTI-LAYER INSOLE, INSOLE FOR SUCH A SHOE AND METHOD FOR PRODUCING AN INSOLE |
| WO1998001050A1 (en) * | 1996-07-08 | 1998-01-15 | Mardix Bar Cochva | Custom insoles |
| US6408543B1 (en) * | 2000-05-18 | 2002-06-25 | Acushnet Company | Footbed system with variable sized heel cups |
| ATE311286T1 (en) * | 2003-09-17 | 2005-12-15 | Spannrit Schuhkomponenten Gmbh | METHOD FOR PRODUCING AN ORTHOPEDIC SHOE INSERT AND SHOE INSERT PRODUCED ACCORDING TO THE METHOD |
| CN104921407A (en) * | 2015-06-30 | 2015-09-23 | 陈正盛 | Shoe-pad and slipper using same |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1244027A (en) * | 1916-12-14 | 1917-10-23 | Charles Polaner | Combination arch-support and heel-cushion. |
| FR738688A (en) * | 1932-06-16 | 1932-12-28 | Cambrillon-heel for shoes | |
| GB408937A (en) * | 1932-10-14 | 1934-04-16 | Phillips Rubber Soles Ltd | Improvements in or relating to heel cushions for use inside boots and shoes |
| DE826508C (en) * | 1949-08-28 | 1952-01-03 | Westfaelische Berggewerkschaft | Temperature monitoring device for installation in containers and pipelines |
| US2598782A (en) * | 1949-11-04 | 1952-06-03 | George H Gillis | Track shoe with cushioned heelreceiving pocket |
| BE500717A (en) * | 1950-02-03 | |||
| US2924849A (en) * | 1956-08-16 | 1960-02-16 | Buchman Henry | Tray for making a corrective footmolded appliance |
| US3068872A (en) * | 1959-08-11 | 1962-12-18 | Brody Alec Elliot | Foot supporting device |
| DE1985930U (en) * | 1968-01-31 | 1968-05-22 | Ind Lemm & Co G M B H | SHOE INSERT, IN PARTICULAR FOR SPORTSHOES. |
| US3766669A (en) * | 1969-08-21 | 1973-10-23 | Usm Corp | Profiled cellular article |
| GB1345150A (en) * | 1970-10-23 | 1974-01-30 | Monsanto Chemicals | Footwear |
| BE808547A (en) * | 1973-12-12 | 1974-03-29 | Clercq Wilhelm De | FOOTBALL SHOE |
| DE7627371U1 (en) * | 1976-09-02 | 1976-12-30 | Fa. Carl Freudenberg, 6940 Weinheim | Shoe insert |
-
1978
- 1978-12-07 ZA ZA786873A patent/ZA786873B/en unknown
- 1978-12-13 GB GB7848295A patent/GB2010068B/en not_active Expired
- 1978-12-14 DE DE19782853982 patent/DE2853982A1/en not_active Ceased
- 1978-12-15 IE IE2484/78A patent/IE47537B1/en not_active IP Right Cessation
- 1978-12-15 DK DK563978A patent/DK156241C/en not_active IP Right Cessation
- 1978-12-15 NL NLAANVRAGE7812229,A patent/NL186060C/en not_active IP Right Cessation
- 1978-12-15 PH PH21953A patent/PH18192A/en unknown
- 1978-12-15 FR FR7835421A patent/FR2411582A1/en active Granted
- 1978-12-15 SE SE7812897A patent/SE438245B/en not_active IP Right Cessation
- 1978-12-16 JP JP53155658A patent/JPS5929242B2/en not_active Expired
- 1978-12-18 BE BE192379A patent/BE872840A/en not_active IP Right Cessation
- 1978-12-18 NZ NZ189191A patent/NZ189191A/en unknown
- 1978-12-18 CA CA318,107A patent/CA1108396A/en not_active Expired
- 1978-12-18 AU AU42617/78A patent/AU522897B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5929242B2 (en) | 1984-07-19 |
| PH18192A (en) | 1985-04-23 |
| ZA786873B (en) | 1980-08-27 |
| IE782484L (en) | 1979-06-16 |
| SE7812897L (en) | 1979-06-17 |
| AU4261778A (en) | 1979-06-21 |
| FR2411582A1 (en) | 1979-07-13 |
| FR2411582B1 (en) | 1985-02-22 |
| NZ189191A (en) | 1980-10-24 |
| GB2010068B (en) | 1982-05-19 |
| DK563978A (en) | 1979-06-17 |
| JPS5494949A (en) | 1979-07-27 |
| BE872840A (en) | 1979-04-17 |
| IE47537B1 (en) | 1984-04-18 |
| NL7812229A (en) | 1979-06-19 |
| DK156241C (en) | 1989-12-11 |
| DK156241B (en) | 1989-07-17 |
| NL186060B (en) | 1990-04-17 |
| SE438245B (en) | 1985-04-15 |
| DE2853982A1 (en) | 1979-06-21 |
| NL186060C (en) | 1990-09-17 |
| GB2010068A (en) | 1979-06-27 |
| AU522897B2 (en) | 1982-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |