CA2014256A1 - Interchangeable inserts for the midsole of shoes - Google Patents
Interchangeable inserts for the midsole of shoesInfo
- Publication number
- CA2014256A1 CA2014256A1 CA 2014256 CA2014256A CA2014256A1 CA 2014256 A1 CA2014256 A1 CA 2014256A1 CA 2014256 CA2014256 CA 2014256 CA 2014256 A CA2014256 A CA 2014256A CA 2014256 A1 CA2014256 A1 CA 2014256A1
- Authority
- CA
- Canada
- Prior art keywords
- heel portion
- shoe
- edge
- specified
- heel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000037431 insertion Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 25
- 239000012858 resilient material Substances 0.000 claims 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- ONIBWKKTOPOVIA-BYPYZUCNSA-N L-Proline Chemical compound OC(=O)[C@@H]1CCCN1 ONIBWKKTOPOVIA-BYPYZUCNSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A shoe in which the heel portion of the midsole is provided with tapered channel means and an interchangeable insert which comprises plug means for releasable interfitting attachment within the tapered channel means, the plug means being made of material of different resilience from that of the midsole so that the wearer may select a plug means of a given resilience for insertion within the channel means whereby to personalize cushioning of the shoe.
A shoe in which the heel portion of the midsole is provided with tapered channel means and an interchangeable insert which comprises plug means for releasable interfitting attachment within the tapered channel means, the plug means being made of material of different resilience from that of the midsole so that the wearer may select a plug means of a given resilience for insertion within the channel means whereby to personalize cushioning of the shoe.
Description
SPC'CIFICATION
BRIEF B;~C~GROUND, rIELD AND OE~JFCTIVE~-OF THE I NVENT~: ON
~ his in~ention relates to improvements in interchangeabl~ ir,serts for the midsole of shoes. In particular, to shoes suitable for use by athletes and runners and wlth res~ect to which the cushioning of the midsole may ke interchangeably varied according to weather conditions, the terrain, or other personal characteristics that the wearer considers to be appropriate.
I am aware that others have provided different types of midsole inserts for varying the resilience of the m~dsole o running shoes. For instance, in Patents Nos.
~,573,279 and 4,624,061 there are provided various multi-part inserts in which the parts are cooperatively interlocked with each other in order to maintain the insert within the midsole; and as shown by Patent No. 4,817,304 in which is provided a fluid filled insert for which it is apparently expected that frictional engagement will secure the insert within the midsole.
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~ he conventional running shoe is provided with a padded sole, to soften the jarring to the body a~ cau~ed by the repeated thumping of the feet against the ground. Since ~ i personal characteri~tics will change from wearer to wearer and the shoes will be worn under various weather conditions and will be used on differing~terrain, it is apDarent that a sole of a given cus~.ioning may not be generallv acceptable under all conditions of use.
~ hus, the primary object of this invention is the provision of interchangeable inserts for the midsole of shoes whereb~ the wearer ~ay customize the cushior.ing thereof to suit individual needs.
A further object is the provision of a midsole system for running shoes in which the wearer may vary the resilience of the midsole by use of selectively in~erchangeable inserts whereby to compensate for overpronation or supination, which is a characteristic ~tendency that is typical to most runners and which leads no_ ~only to discomfort, but also to injury.
Another object of the invention is the provision of interchangeable inserts for the midsole of shoes and in which the insert is configured to provide greater support for the foot on the inside edge of the sole.
Other objects and advantages of the invention will become apparent from the following detailed description, t~en in connection with the accompanying drawings, and in which drawings:
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BRIEF B;~C~GROUND, rIELD AND OE~JFCTIVE~-OF THE I NVENT~: ON
~ his in~ention relates to improvements in interchangeabl~ ir,serts for the midsole of shoes. In particular, to shoes suitable for use by athletes and runners and wlth res~ect to which the cushioning of the midsole may ke interchangeably varied according to weather conditions, the terrain, or other personal characteristics that the wearer considers to be appropriate.
I am aware that others have provided different types of midsole inserts for varying the resilience of the m~dsole o running shoes. For instance, in Patents Nos.
~,573,279 and 4,624,061 there are provided various multi-part inserts in which the parts are cooperatively interlocked with each other in order to maintain the insert within the midsole; and as shown by Patent No. 4,817,304 in which is provided a fluid filled insert for which it is apparently expected that frictional engagement will secure the insert within the midsole.
;
~ he conventional running shoe is provided with a padded sole, to soften the jarring to the body a~ cau~ed by the repeated thumping of the feet against the ground. Since ~ i personal characteri~tics will change from wearer to wearer and the shoes will be worn under various weather conditions and will be used on differing~terrain, it is apDarent that a sole of a given cus~.ioning may not be generallv acceptable under all conditions of use.
~ hus, the primary object of this invention is the provision of interchangeable inserts for the midsole of shoes whereb~ the wearer ~ay customize the cushior.ing thereof to suit individual needs.
A further object is the provision of a midsole system for running shoes in which the wearer may vary the resilience of the midsole by use of selectively in~erchangeable inserts whereby to compensate for overpronation or supination, which is a characteristic ~tendency that is typical to most runners and which leads no_ ~only to discomfort, but also to injury.
Another object of the invention is the provision of interchangeable inserts for the midsole of shoes and in which the insert is configured to provide greater support for the foot on the inside edge of the sole.
Other objects and advantages of the invention will become apparent from the following detailed description, t~en in connection with the accompanying drawings, and in which drawings:
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2~
Fig. 1 is a perspective view of a shoe in which an interchangeable insert according to my invention is interfitted with~n the midsole thereof.
Fig. 2 is an exploded fragmentarv perspective view of a midsole inc'uding an interchangeable insert according to a preferre~ embcdiment of th~ invention.
Fiq. 3 is a top plan view of the midsole of Fig. 2 at the initial stage of interfitting an insert therewithin.
Fig. 4 is a transverse sectional view as ta~en substantiall~ along the line 4-4 of Fig. 3.
Fig. 5 is a top plan view showir.g the insert of Fig. 2 at approximately the midpoint of interfitting of the same within the midsole.
Fig. 6 is a transverse sectional view taken sub-~tantially along the line 6-6 of Fig. 4.
Fig. 7 is a top plan view showing the insert of Fig. 2 as removably attached fully within the midsole.
. Fig. 8 is a transverse sectional view ta~en substantially àlong the lines 8-8 of Fig. 7.
Fig. 9 is an exploded perspective view similar to Fig. 2 and showing a modified embodiment of the invention.
Fig. 10 is an exploded perspective view similar to Fig. 2 and showing a still further modlfied embodiment of the invention.
2~
DETAILED DESCRIPTION
In the drawings, wherein are shown a Dreferred and modifie~ embodiments of my invention, and wherein similar reference charactezs desi~nate correspondinq parts throughout the several views, the letter A may qenerally designate a shoe having a midsole B within which an insert C mav be interchanseably received.
Shoe A mav inciude an upper 15 which mav be provided with an insole 16 and stabilizer 17, as attached in a conventional manner to midsole ~.
As shown in Figs. 2-8, midsole B may comprise a main body portion 20 having a toe portion 21 and a heel :portion 22. Heel portion 22 may have an inside edge 23 and an outside edge 24, and is provided with transverse channel means 26 which extends fully across the width thereof from the in~ide edge 23 to the outside edge 24 thereof.
Transverse channel means 26 is preferably tapered from one side edge of heel portion 22 to the other side edge thereof, having side walls 30 and 31 which preferably define an end of narrow width at the inside edge 23 of heel portion 22 and which therefrom diverge outwardly and define an end of substantially greater width at the outside edge 24 of heel portion 22. Transverse channel means 26 may alQo include partition means 33 and 34 for dividing transverse channel _ 4 _ ... . . :. .,, . . .. ~ . - ~ .
2~ 5~j means 26 into a plurality of passageways 35, 36 and 37 which extend transversely across heel portion 22.
Partition ~eans 33 and 34 may be of triangular configuration, each having an ape~ 40 which is spaced ir.wardly CrGm insi2e edqe 23 of heel portion 22 whereby the end of channel means 26 of narrow width has an entry portion 41 which i3 unencumbered thereacross by way of facilitating the initial inter'itting of insert C therewithin, as will be -~ubsesuently described.
Partition means 33 may be provided with side walls 44 and 45 which diverge from apex 40 thereof to adjacent outside edge 24 of heel portion 22; and partition means 34 may be provided with side walls 46 and 47 which divergently extend from ap~Y 40 thereof to adjacent outside ea~e 24 of heel portion 22. Side wall 44 of partition means 33 is ~pre~erable substantially parallel to side wall 30 of transverse channel means 26, defining therebetween passageway 35; s$~e wall 45 of partition means 33 is preferably substantially parallel to side wall 46 of partition means 34, defining therebetween passageway 36 of channel means 26; and side wall 47 of partition means 34 is preferably substantially parallel to side wall 31 of transverse channel means 26, defining therebetween passageway 37 of channel means 26.
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Insert C preferably comprises plu~ means 50 havinq a tapered body Dortion 51 which may be of a bi'urcate~
con iquration havir.~ ~ron~ me~ans 54, 55 and ;6 which each extend from first en2 means 58 thereof to respective head ~ortions 60, 61 and 6~ which define a second end means 63 of plug means 50. ~nd means 58 and 63 may be respectively provided with flanqe means 66 and 67 for purposes as will be subsequentlv described. Pronq means 54, 55 and 56 are preferably confi~ured to e~tend from end means 58 in ju~tarelation so that head portions 60, 61 and 62 thereo~ mav be laterallv compre~sed together for insertion within unencumbered portion 41 of transverse channel means 26 (as shown in Figs. 3 and 4). Prong means 54 is disposed to interfit within passageway 35 of transverse channel means 26;
~,prong means 55 is disposed to interfit within passaqeway 36 '~'of transverse channel means 26; and pronq means 56 is disposed to interfit within passaqeway 37 of transverse channel means 26.
As Qhown in Figs. 5 and 6, on further insertion of plug mean~ 50 into transverse channel means 26 from unencumbered portion 41 thereof, pronq means 54 may be slidably inserted through passageway 35; ~rong means 55 may be slidably inserted through passageway 36; and prong means 56 may be ~lidably inserted through passageway 37.
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As shown in Fi~s. 7 and 8, when plu~ means 50 is fully inserted within transverse channel means 26, flan~e means 66 of first end means S8 of plua means 50 abuts aqains_ inside edse 23 of heel portion 2~ and flange means fi7 of second end means 63 Oc head portions 60, 61 and 6~ of prol~
means 54, 55 and S6 res~ectively abut against outside edqe 24 o heel portion 22.
In order to remove insert C from midsole B, pressuxe ma-~ be e~erted aqainst head portions 60, 61 and 62 in a manner such that each is at least sliqhtlv pushed into respective passageways 35, 36 and 37, whereupon end means 5 may be grasped and insert C pulled out and removed from midsole B.
Tapered body portion 51 of plug means 50 is .~preferably of a material different from that of midsole B.
~For instance, main body portion 20 of midsole B mav be comprised of a midsole havinq a Shore hardness of 30 and plug . means 50 may be comprised of a body portion 51 havinq a Shore hardness of from 35 to 55.
Under usual circumstances of use, insert C will be made of a harder and/or denser material than is midsole a, for addin~ increased firmness and suDport. Of course, it is within the scope of this invention to construct insert C of a material which i9 softer and less dense than that of midsole B, should -quch need arise for some reason or situation which is not presently apparent.
2~
In the ~mbodiment of Fig. 9, midsole B' thereof maycomprise a main body portion 20' having a toe portion 21' and a heel portion 22'. Heel portion 22' may have an insi~e ed~e 23' and an outside edse 24', and is provided with ~ransverse channel means 25' which extends fully across the width thereof from the inside edge 23' to the outside edge 24' thereof.
Transverse channel means 26' is preferably taDered from one side edge of heel portion 22' to the other side edge thereof, havir.g side walls 30' and 31' which preferably define an end of naxrow width at the inside edge 23' of heel portion 22' and which therefrom diverge outwardly and define an end of substantially greater width at the outside edge 24' of heel portion 22'. Transverse channel means 26' may also include partition means 70 for dividing transverse channel means 26' into a plurality of passageways 72 and 73 which ~extend transversely across heel portion 22'.
Partition means 70 may be of a truncated triangular configuration having an apex 75 which is spaced inwardly from inside edge 23' of heel portion 22' whereby the end of channel means 26' of narrow width has an entry portion 41' which is unencumbered thereacross by way of facilitating the initial interfitting of insert C' therewithin, as will be subsequently described.
Partition means 70 may be pr~vided with side walls 77 and 78 which diverge from apex 75 thereof to ad~acent outside edge 24' of heel portion 22'~ Side wall 77 of .
'' : : . ' ';, : ' :
: ` ' ' ' .: ' ' ~:' ` . ':' .
- ' . ,: : ' . :
partition means 70 is preferably substantially parallel to side wall 30' of transverse channel means 26', ~efinin~
therebe ween passaseway 72; and side wall 78 of partition means 7G is preferably substantiallv parallel to side wall 31' of transverse channel means 26', defining therebetween passage~ay 73.
Insert C' of the embodiment of Fig. 9 preferably com~rise~ plug ~eans 50', a tapered body portion 51' which may be of a bifurcated configuration having pror.g means 83 and 84 which each extend from first end means 58' thereof to respective head portions 86 and 87 which define a second end means 63' of plug means 50'. End means 58' and 63' may be respectiveiy provided with flange means 66' and 67' which serve the same purposes as previously described with respect to flange means 66 and 67 of insert C. Prong means 83 and 84 are preferably configured to extend from end means 58' in juxtarelation so that head portions 86 and 87 thereof may be laterally compressed together for insertion with~n-unencumbered portion 41' of transverse channel means 26'.
Prong means 83 19 disposed to lnterflt wlthln passageway 72 of transverse channel means 26'; and prong means 84 is disposed to interfit within passageway 73 of transverse channel means 26'.
Insert C' may be inserted within and removed from transverse channel means 26' of midsole B' in the same manner as previously described in connection with the embodiment as shown in Figs. 2-8.
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In the embodiment of Fig. 10, midsole B'' thereof may comprise a main body portion 20'' having a toe portion 21'' and a heel portion 22''.~ Heel portion 22'' may ha.~e an inside.edge 23'' and an outside edse 24'', and is provided with transverse channel means 26'' which extends fully across the width thereof from the inside edge 23'' to the outside edge 24'' thereof.
Transverse channel means 26'' is preferably tapered from one side edge of heel portion 22'' to the other side edge thereo , having side walls 30'' and 31'' which preferably define an end of narrow width at the inside edge 23'' of heel portion 22'' and which therefrom diver~e outwardly and define an en~ of substantially greater width at the outside edge 24'' of heel portion 22''. Transverse channel means 26'' may also include partition means 90 for ~dividing transverse channel means 26'' into a plurality of passageways 92 and 93 which extend transversely across heel portion 22''.
Partition means 90 may be of a triangular configuration having an apex 95 which is spaced inwardly from inside edge 23'' of heel portion 22 " whereby the end of channel means 26'' of narrow width has an entry portion 41'' which is unencumbered thereacross by way of facilitating the initial interfitting of insert C " therewithin, as will be subsequently described.
Partition means 90 may be provided with side walls 97 and 98 which diverge from apex 95 thereof to adjacent . . , ~
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outside edge 24'' of heel portion 22''. Side wall 97 of partition means 90 is preferably substantially parallel to side wall 10'' of transverse channel means 26'', defining therebetw~en passageway 92; and side wall 98 of partition means 9C is preferably substantially parallel to side wall 31'' of transverse channel means 26'', defining therebetween passageway 93.
Insert C'' of the embodiment of Fig. 10 preferably comprises plug mear.s 50'', a tapered body portion 51'' which may be Or a bifurcate2 configuration having prong means 103 and 104 wkich each extend from first end mèans 58'' thereof to respective head portions 106 and 107 which define a second end means 63'' of pluq means 50''. End means 58'' and 63'' may be respectively provided with flange means 66'' and 67'' which serve the same purposes as previously described with Lrespect to flange means 66 and 67 of insert C. Prong means 103 and 104 are preferably configured to extend from end means 58'' in juxtarelation 90 that head portions 106 and 107 thereof may be laterally compressed together for insertion within unencumbered portion 41'' of transverse channel means 26''. Prong means 103 is disposed to interfit within pa~sageway 92 of transverse channel means 26''; and prong means 104 is disposed to interfit within passageway 93 of transverse channel means 26''.
~ nsert C " may be inserted within and removed from transverse channel means 26'' of midsole B'' in the same 2g~
.. ' ~
manner as previously described in connection with the embodiment as shown in Figs. 2-8.
It is obvious that ~midsole ~ mav be provided ~ith an undivided channel means 26, in which event insert c would be of a one-piece truncated triangular configuration. In this form, insert C would have to be inserted in midsole from side 24 toward side 23 thereof.
Various changes may be made to the forms of the invention as herein shown and described without departing from the spirit of the invention or the scope of the following claims.
~ , .
Fig. 1 is a perspective view of a shoe in which an interchangeable insert according to my invention is interfitted with~n the midsole thereof.
Fig. 2 is an exploded fragmentarv perspective view of a midsole inc'uding an interchangeable insert according to a preferre~ embcdiment of th~ invention.
Fiq. 3 is a top plan view of the midsole of Fig. 2 at the initial stage of interfitting an insert therewithin.
Fig. 4 is a transverse sectional view as ta~en substantiall~ along the line 4-4 of Fig. 3.
Fig. 5 is a top plan view showir.g the insert of Fig. 2 at approximately the midpoint of interfitting of the same within the midsole.
Fig. 6 is a transverse sectional view taken sub-~tantially along the line 6-6 of Fig. 4.
Fig. 7 is a top plan view showing the insert of Fig. 2 as removably attached fully within the midsole.
. Fig. 8 is a transverse sectional view ta~en substantially àlong the lines 8-8 of Fig. 7.
Fig. 9 is an exploded perspective view similar to Fig. 2 and showing a modified embodiment of the invention.
Fig. 10 is an exploded perspective view similar to Fig. 2 and showing a still further modlfied embodiment of the invention.
2~
DETAILED DESCRIPTION
In the drawings, wherein are shown a Dreferred and modifie~ embodiments of my invention, and wherein similar reference charactezs desi~nate correspondinq parts throughout the several views, the letter A may qenerally designate a shoe having a midsole B within which an insert C mav be interchanseably received.
Shoe A mav inciude an upper 15 which mav be provided with an insole 16 and stabilizer 17, as attached in a conventional manner to midsole ~.
As shown in Figs. 2-8, midsole B may comprise a main body portion 20 having a toe portion 21 and a heel :portion 22. Heel portion 22 may have an inside edge 23 and an outside edge 24, and is provided with transverse channel means 26 which extends fully across the width thereof from the in~ide edge 23 to the outside edge 24 thereof.
Transverse channel means 26 is preferably tapered from one side edge of heel portion 22 to the other side edge thereof, having side walls 30 and 31 which preferably define an end of narrow width at the inside edge 23 of heel portion 22 and which therefrom diverge outwardly and define an end of substantially greater width at the outside edge 24 of heel portion 22. Transverse channel means 26 may alQo include partition means 33 and 34 for dividing transverse channel _ 4 _ ... . . :. .,, . . .. ~ . - ~ .
2~ 5~j means 26 into a plurality of passageways 35, 36 and 37 which extend transversely across heel portion 22.
Partition ~eans 33 and 34 may be of triangular configuration, each having an ape~ 40 which is spaced ir.wardly CrGm insi2e edqe 23 of heel portion 22 whereby the end of channel means 26 of narrow width has an entry portion 41 which i3 unencumbered thereacross by way of facilitating the initial inter'itting of insert C therewithin, as will be -~ubsesuently described.
Partition means 33 may be provided with side walls 44 and 45 which diverge from apex 40 thereof to adjacent outside edge 24 of heel portion 22; and partition means 34 may be provided with side walls 46 and 47 which divergently extend from ap~Y 40 thereof to adjacent outside ea~e 24 of heel portion 22. Side wall 44 of partition means 33 is ~pre~erable substantially parallel to side wall 30 of transverse channel means 26, defining therebetween passageway 35; s$~e wall 45 of partition means 33 is preferably substantially parallel to side wall 46 of partition means 34, defining therebetween passageway 36 of channel means 26; and side wall 47 of partition means 34 is preferably substantially parallel to side wall 31 of transverse channel means 26, defining therebetween passageway 37 of channel means 26.
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2~lÇ~5~
Insert C preferably comprises plu~ means 50 havinq a tapered body Dortion 51 which may be of a bi'urcate~
con iquration havir.~ ~ron~ me~ans 54, 55 and ;6 which each extend from first en2 means 58 thereof to respective head ~ortions 60, 61 and 6~ which define a second end means 63 of plug means 50. ~nd means 58 and 63 may be respectively provided with flanqe means 66 and 67 for purposes as will be subsequentlv described. Pronq means 54, 55 and 56 are preferably confi~ured to e~tend from end means 58 in ju~tarelation so that head portions 60, 61 and 62 thereo~ mav be laterallv compre~sed together for insertion within unencumbered portion 41 of transverse channel means 26 (as shown in Figs. 3 and 4). Prong means 54 is disposed to interfit within passageway 35 of transverse channel means 26;
~,prong means 55 is disposed to interfit within passaqeway 36 '~'of transverse channel means 26; and pronq means 56 is disposed to interfit within passaqeway 37 of transverse channel means 26.
As Qhown in Figs. 5 and 6, on further insertion of plug mean~ 50 into transverse channel means 26 from unencumbered portion 41 thereof, pronq means 54 may be slidably inserted through passageway 35; ~rong means 55 may be slidably inserted through passageway 36; and prong means 56 may be ~lidably inserted through passageway 37.
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As shown in Fi~s. 7 and 8, when plu~ means 50 is fully inserted within transverse channel means 26, flan~e means 66 of first end means S8 of plua means 50 abuts aqains_ inside edse 23 of heel portion 2~ and flange means fi7 of second end means 63 Oc head portions 60, 61 and 6~ of prol~
means 54, 55 and S6 res~ectively abut against outside edqe 24 o heel portion 22.
In order to remove insert C from midsole B, pressuxe ma-~ be e~erted aqainst head portions 60, 61 and 62 in a manner such that each is at least sliqhtlv pushed into respective passageways 35, 36 and 37, whereupon end means 5 may be grasped and insert C pulled out and removed from midsole B.
Tapered body portion 51 of plug means 50 is .~preferably of a material different from that of midsole B.
~For instance, main body portion 20 of midsole B mav be comprised of a midsole havinq a Shore hardness of 30 and plug . means 50 may be comprised of a body portion 51 havinq a Shore hardness of from 35 to 55.
Under usual circumstances of use, insert C will be made of a harder and/or denser material than is midsole a, for addin~ increased firmness and suDport. Of course, it is within the scope of this invention to construct insert C of a material which i9 softer and less dense than that of midsole B, should -quch need arise for some reason or situation which is not presently apparent.
2~
In the ~mbodiment of Fig. 9, midsole B' thereof maycomprise a main body portion 20' having a toe portion 21' and a heel portion 22'. Heel portion 22' may have an insi~e ed~e 23' and an outside edse 24', and is provided with ~ransverse channel means 25' which extends fully across the width thereof from the inside edge 23' to the outside edge 24' thereof.
Transverse channel means 26' is preferably taDered from one side edge of heel portion 22' to the other side edge thereof, havir.g side walls 30' and 31' which preferably define an end of naxrow width at the inside edge 23' of heel portion 22' and which therefrom diverge outwardly and define an end of substantially greater width at the outside edge 24' of heel portion 22'. Transverse channel means 26' may also include partition means 70 for dividing transverse channel means 26' into a plurality of passageways 72 and 73 which ~extend transversely across heel portion 22'.
Partition means 70 may be of a truncated triangular configuration having an apex 75 which is spaced inwardly from inside edge 23' of heel portion 22' whereby the end of channel means 26' of narrow width has an entry portion 41' which is unencumbered thereacross by way of facilitating the initial interfitting of insert C' therewithin, as will be subsequently described.
Partition means 70 may be pr~vided with side walls 77 and 78 which diverge from apex 75 thereof to ad~acent outside edge 24' of heel portion 22'~ Side wall 77 of .
'' : : . ' ';, : ' :
: ` ' ' ' .: ' ' ~:' ` . ':' .
- ' . ,: : ' . :
partition means 70 is preferably substantially parallel to side wall 30' of transverse channel means 26', ~efinin~
therebe ween passaseway 72; and side wall 78 of partition means 7G is preferably substantiallv parallel to side wall 31' of transverse channel means 26', defining therebetween passage~ay 73.
Insert C' of the embodiment of Fig. 9 preferably com~rise~ plug ~eans 50', a tapered body portion 51' which may be of a bifurcated configuration having pror.g means 83 and 84 which each extend from first end means 58' thereof to respective head portions 86 and 87 which define a second end means 63' of plug means 50'. End means 58' and 63' may be respectiveiy provided with flange means 66' and 67' which serve the same purposes as previously described with respect to flange means 66 and 67 of insert C. Prong means 83 and 84 are preferably configured to extend from end means 58' in juxtarelation so that head portions 86 and 87 thereof may be laterally compressed together for insertion with~n-unencumbered portion 41' of transverse channel means 26'.
Prong means 83 19 disposed to lnterflt wlthln passageway 72 of transverse channel means 26'; and prong means 84 is disposed to interfit within passageway 73 of transverse channel means 26'.
Insert C' may be inserted within and removed from transverse channel means 26' of midsole B' in the same manner as previously described in connection with the embodiment as shown in Figs. 2-8.
_ 9 _ : - : -: : .
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In the embodiment of Fig. 10, midsole B'' thereof may comprise a main body portion 20'' having a toe portion 21'' and a heel portion 22''.~ Heel portion 22'' may ha.~e an inside.edge 23'' and an outside edse 24'', and is provided with transverse channel means 26'' which extends fully across the width thereof from the inside edge 23'' to the outside edge 24'' thereof.
Transverse channel means 26'' is preferably tapered from one side edge of heel portion 22'' to the other side edge thereo , having side walls 30'' and 31'' which preferably define an end of narrow width at the inside edge 23'' of heel portion 22'' and which therefrom diver~e outwardly and define an en~ of substantially greater width at the outside edge 24'' of heel portion 22''. Transverse channel means 26'' may also include partition means 90 for ~dividing transverse channel means 26'' into a plurality of passageways 92 and 93 which extend transversely across heel portion 22''.
Partition means 90 may be of a triangular configuration having an apex 95 which is spaced inwardly from inside edge 23'' of heel portion 22 " whereby the end of channel means 26'' of narrow width has an entry portion 41'' which is unencumbered thereacross by way of facilitating the initial interfitting of insert C " therewithin, as will be subsequently described.
Partition means 90 may be provided with side walls 97 and 98 which diverge from apex 95 thereof to adjacent . . , ~
~: . . . . . .. . .
: - : . .
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201~
outside edge 24'' of heel portion 22''. Side wall 97 of partition means 90 is preferably substantially parallel to side wall 10'' of transverse channel means 26'', defining therebetw~en passageway 92; and side wall 98 of partition means 9C is preferably substantially parallel to side wall 31'' of transverse channel means 26'', defining therebetween passageway 93.
Insert C'' of the embodiment of Fig. 10 preferably comprises plug mear.s 50'', a tapered body portion 51'' which may be Or a bifurcate2 configuration having prong means 103 and 104 wkich each extend from first end mèans 58'' thereof to respective head portions 106 and 107 which define a second end means 63'' of pluq means 50''. End means 58'' and 63'' may be respectively provided with flange means 66'' and 67'' which serve the same purposes as previously described with Lrespect to flange means 66 and 67 of insert C. Prong means 103 and 104 are preferably configured to extend from end means 58'' in juxtarelation 90 that head portions 106 and 107 thereof may be laterally compressed together for insertion within unencumbered portion 41'' of transverse channel means 26''. Prong means 103 is disposed to interfit within pa~sageway 92 of transverse channel means 26''; and prong means 104 is disposed to interfit within passageway 93 of transverse channel means 26''.
~ nsert C " may be inserted within and removed from transverse channel means 26'' of midsole B'' in the same 2g~
.. ' ~
manner as previously described in connection with the embodiment as shown in Figs. 2-8.
It is obvious that ~midsole ~ mav be provided ~ith an undivided channel means 26, in which event insert c would be of a one-piece truncated triangular configuration. In this form, insert C would have to be inserted in midsole from side 24 toward side 23 thereof.
Various changes may be made to the forms of the invention as herein shown and described without departing from the spirit of the invention or the scope of the following claims.
~ , .
Claims (23)
1. A shoe including a sole comprising a main body portion formed of shock-absorbing resilient material and having a toe portion and a heel portion, said heel portion having an outside edge and an inside edge and being provided with transverse channel means which extends fully across the width of said heel portion from the outside edge to the inside edge thereof, said channel means being tapered outwardly from one said edge of said heel portion to the other said edge thereof, and plug means comprised of a material of different resilience from that of said main body portion of said sole, said plug means having a tapered body portion for interfitting within and substantially filling said transverse channel means, said tapered body portion having first end means extending outwardly of one side edge of said heel portion and a second end means extending outwardly of the other said edge of said heel portion, each said end means including flange means for abutment against the said edge of said heel portion beyond which the same extends in juxtaposition for removably interlocking said plug means within said transverse channel means.
2. A shoe as specified in claim 1 wherein said tapered channel means has an end of narrow width at the inside edge of said heel portion and from which said tapered channel means flares outwardly and has an end of substantially greater width at the outside edge of said heel portion.
3. A shoe including a sole comprising a main body portion formed of shock-absorbing resilient material and having a toe portion and a heel portion, said heel portion having an outside edge and an inside edge and being provided with transverse channel means which extends fully across the width of said heel portion from the outside edge to the inside edge thereof, said channel means being tapered outwardly from one said edge to the other said edge of said heel portion, and plug means for interfitting within and substantially fitting said transverse channel means and being of a material of different resilience from that of said main body portion of said sole, said plug means having a tapered body portion and being bifurcated for lateral compression thereof for insertion within said transverse channel means and thereacross from one end thereof to the other.
4. A shoe as specified in claim 3 wherein said tapered channel means has an end of narrow width at the inside edge of said heel portion and from which said tapered channel means flange outwardly and has an end of substantially greater width at the outside edge of said heel portion.
5. A shoe as specified in either of claims 1, 2, 3, or 4, and wherein said plug means has a Shore hardness of from 35-55.
6. A shoe as specified in claim 5 wherein the main body portion of said sole has a Shore hardness of 30.
7. A shoe including a sole comprising a main body portion formed of shock-absorbing resilient material and having a toe portion and a heel portion, said heel portion having an outside edge and an inside edge and being provided with transverse channel means which extends fully across the width of said heel portion from the outside edge to the inside edge thereof, said channel means having side walls which define an end of said channel means of narrow width at the inside edge of said heel portion and which therefrom diverge outwardly and define an end of said channel means of substantially greater width at the outside edge of said heel portion, said sole including partition means for dividing said channel means into a plurality of passageways which extend transversely across said heel portion, and plug means comprised of a material of different resilience from that of said main body portion of said sole, said plug means having a head portion configured for interfitting within the end of said channel means of narrow width and bifurcated prong means which extend from said head portion and interfit within and extend along said passageways and have an outermost end at the other end of said channel means.
8. A shoe as specified in claim 7 and wherein said passageways are asymmetrically disposed and said prong means are correspondingly asymmetrical to interfit within said passageways.
9. A shoe as specified in claim 7 and wherein said passageways are symmetrically disposed and said prong means are correspondingly symmetrical to interfit within said passageway.
10. A shoe as specified in either of claims 7, 8, or 9, and wherein said head portion of said plug means extends outwardly of said inside edge of said heel portion and includes flange means for abutment against the inside edge of said heel portion, and said prong means include an end portion which extends outwardly of the outside edge of said heel portion and has flange means for abutment against the outside edge of said heel means.
11. A shoe as specified in claim 10 and wherein said plug means has a Shore hardness of from 35-55.
12. A shoe as specified in claim 11 wherein the main body portion of said sole has a Shore hardness of 30.
13. A shoe as specified in claim 7 wherein said partition means has a triangular configuration, the apex of which is spaced inwardly from the inside edge of said heel portion whereby said end of said channel means of narrow width has a portion which is unencumbered thereacross for receiving therewithin the outermost reach of said prong means in juxtarelation for insertion into said passageways.
14. A shoe as specified in claim 13 and wherein said passageways are asymmetrically disposed and said prong means are correspondingly asymmetrical to interfit within said passageways.
15. A shoe as specified in claim 13 and wherein said passageways are symmetrically disposed and said prong means are correspondingly symmetrical to interfit within said passageway.
16. A shoe as specified in either of claims 13, 14, or 15 and wherein said head portion of said plug means extends outwardly of said inside edge of said heel portion and includes flange means for abutment against the inside edge of said heel portion, and said prong means include an end portion which extends outwardly of the outside edge of said heel portion and have flange means for abutment against the outside edge of said heel means.
17. A shoe as specified in claim 16 and wherein said plug means has a Shore hardness of from 35-55.
18. A shoe as specified in claim 17 wherein the main body portion of said sole has a Shore hardness of 30.
19. A shoe as specified in claim 7 wherein said partition means comprises a pair of spaced apart partitions of triangular configuration having substantially parallel facing inner side walls defining a passageway therebetween and an outer side wall, said outer side wall of one partition being in substantially parallel facing relation to one side wall of said channel means and defining a passageway therebetween, and said outer side wall of the other partition being in substantially parallel relation to the other side wall of said channel means and defining a passageway therebetween, and said plug means has three bifurcated prong means, one each of which interfits within each of said passageways.
20. A sole as specified in claim 19 wherein the apex of each said partition is spaced inwardly from the inside edge of said heel portion whereby said end of channel means of narrow width has a portion which is unencumbered thereacross for receiving therewithin the outermost reach of said prong means in juxtarelation for insertion into said passageways.
21. A shoe as specified in either of claims 19 or 20, and and wherein said head portion of said plug means extends outwardly of said inside edge of said heel portion and includes flange means for abutment against the inside edge of said heel portion, and said prong means include an end portion which extends outwardly of the outside edge of said heel portion and have flange means for abutment against the outside edge of said heel means.
22. A shoe as specified in claim 21 and wherein said plug means has a Shore hardness of from 35-55.
23. A shoe as specified in claim 22 wherein the main body portion of said sole has a Shore hardness of 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2014256 CA2014256A1 (en) | 1990-04-10 | 1990-04-10 | Interchangeable inserts for the midsole of shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2014256 CA2014256A1 (en) | 1990-04-10 | 1990-04-10 | Interchangeable inserts for the midsole of shoes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2014256A1 true CA2014256A1 (en) | 1991-10-10 |
Family
ID=4144728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2014256 Abandoned CA2014256A1 (en) | 1990-04-10 | 1990-04-10 | Interchangeable inserts for the midsole of shoes |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2014256A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD841297S1 (en) | 2017-05-15 | 2019-02-26 | Nike, Inc. | Shoe midsole |
| USD851877S1 (en) | 2017-05-15 | 2019-06-25 | Nike, Inc. | Shoe midsole |
| USD858962S1 (en) | 2017-05-16 | 2019-09-10 | Nike, Inc. | Shoe |
| USD860601S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD869131S1 (en) | 2018-02-28 | 2019-12-10 | Nike, Inc. | Shoe |
| USD897090S1 (en) | 2017-05-16 | 2020-09-29 | Nike, Inc. | Shoe |
| USD898335S1 (en) | 2017-05-16 | 2020-10-13 | Nike, Inc. | Shoe |
| USD902542S1 (en) | 2019-05-31 | 2020-11-24 | Nike, Inc. | Shoe |
| USD902541S1 (en) | 2019-05-31 | 2020-11-24 | Nike, Inc. | Shoe |
| USD906659S1 (en) | 2019-08-23 | 2021-01-05 | Nike, Inc. | Shoe |
| USD906649S1 (en) | 2019-08-23 | 2021-01-05 | Nike, Inc. | Shoe |
| USD907342S1 (en) | 2019-08-23 | 2021-01-12 | Nike, Inc. | Shoe |
| US11291271B2 (en) | 2019-09-25 | 2022-04-05 | Nike, Inc. | Sole structure for an article of footwear |
-
1990
- 1990-04-10 CA CA 2014256 patent/CA2014256A1/en not_active Abandoned
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD841297S1 (en) | 2017-05-15 | 2019-02-26 | Nike, Inc. | Shoe midsole |
| USD851877S1 (en) | 2017-05-15 | 2019-06-25 | Nike, Inc. | Shoe midsole |
| USD898335S1 (en) | 2017-05-16 | 2020-10-13 | Nike, Inc. | Shoe |
| USD897090S1 (en) | 2017-05-16 | 2020-09-29 | Nike, Inc. | Shoe |
| USD860611S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860610S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860606S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD956391S1 (en) | 2017-05-16 | 2022-07-05 | Nike, Inc. | Shoe |
| USD860608S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860607S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860605S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860604S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860609S1 (en) | 2017-05-16 | 2019-09-24 | Nike, Inc. | Shoe |
| USD858962S1 (en) | 2017-05-16 | 2019-09-10 | Nike, Inc. | Shoe |
| USD882909S1 (en) | 2017-05-16 | 2020-05-05 | Nike, Inc. | Shoe |
| USD862057S1 (en) | 2017-05-16 | 2019-10-08 | Nike, Inc. | Shoe |
| USD860598S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860599S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD869131S1 (en) | 2018-02-28 | 2019-12-10 | Nike, Inc. | Shoe |
| USD860601S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860602S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860600S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD860603S1 (en) | 2018-02-28 | 2019-09-24 | Nike, Inc. | Shoe |
| USD902541S1 (en) | 2019-05-31 | 2020-11-24 | Nike, Inc. | Shoe |
| USD902542S1 (en) | 2019-05-31 | 2020-11-24 | Nike, Inc. | Shoe |
| USD906659S1 (en) | 2019-08-23 | 2021-01-05 | Nike, Inc. | Shoe |
| USD906649S1 (en) | 2019-08-23 | 2021-01-05 | Nike, Inc. | Shoe |
| USD907342S1 (en) | 2019-08-23 | 2021-01-12 | Nike, Inc. | Shoe |
| US11291271B2 (en) | 2019-09-25 | 2022-04-05 | Nike, Inc. | Sole structure for an article of footwear |
| US11889892B2 (en) | 2019-09-25 | 2024-02-06 | Nike, Inc. | Sole structure for an article of footwear |
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Legal Events
| Date | Code | Title | Description |
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