CA1162044A - Sole for sports shoes, in particular for use on hard surfaces, and a device for fitting a support member into the sole - Google Patents
Sole for sports shoes, in particular for use on hard surfaces, and a device for fitting a support member into the soleInfo
- Publication number
- CA1162044A CA1162044A CA000381878A CA381878A CA1162044A CA 1162044 A CA1162044 A CA 1162044A CA 000381878 A CA000381878 A CA 000381878A CA 381878 A CA381878 A CA 381878A CA 1162044 A CA1162044 A CA 1162044A
- Authority
- CA
- Canada
- Prior art keywords
- sole
- recess
- support member
- tube
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/181—Resiliency achieved by the structure of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Dowels (AREA)
- Door And Window Frames Mounted To Openings (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
TITLE OF THE INVENTION
SOLE FOR SPORTS SHOES, IN PARTICULAR FOR USE ON HARD
SURFACES, AND A DEVICE FOR FITTING A SUPPORT MEMBER
INTO THE SOLE
ABSTRACT OF THE DISCLOSURE
The invention relates to a sole for sports shoes in particular for use on hard surfaces and tracks, which has or forms a heel wedge of an elastic relatively softly yielding material. The heel wedge has at least under the support surface for the heel one recess which is accessible from the edge of the sole and which ex-tends approximately parallel to the support surface and to the tread side of the sole. Into such recess a resiliently bendable support member can be replace-ably fitted. The recess in cross-action is narrower than the support member which can be fitted therein and thus the material of the heel wedge is locally compressed in the envivronment of the recess. Thereby the apparent hardness of the sole may be increased.
SOLE FOR SPORTS SHOES, IN PARTICULAR FOR USE ON HARD
SURFACES, AND A DEVICE FOR FITTING A SUPPORT MEMBER
INTO THE SOLE
ABSTRACT OF THE DISCLOSURE
The invention relates to a sole for sports shoes in particular for use on hard surfaces and tracks, which has or forms a heel wedge of an elastic relatively softly yielding material. The heel wedge has at least under the support surface for the heel one recess which is accessible from the edge of the sole and which ex-tends approximately parallel to the support surface and to the tread side of the sole. Into such recess a resiliently bendable support member can be replace-ably fitted. The recess in cross-action is narrower than the support member which can be fitted therein and thus the material of the heel wedge is locally compressed in the envivronment of the recess. Thereby the apparent hardness of the sole may be increased.
Description
- ' ~ 31$2~
The invention relates to a sole for sports shoes, in particular for use on hard surfaces, which has or forms a heel wedge of an elastic relatively softly yielding~material, whereing in the region under the s~pport surface for the heel, the heel wedge has at least one recess which is accessible from ~he edge of the sole and which extends approximately parallel to the support surface and to the tread side o~ the sole and into which a resiliently bendable support member can be replaceably fitted, the support member substantially filling the recess.
:
The invention also relates to a device for fitting a said support member into such a sole which has at least one recess which is open towards opposite edges of the sole.
` ::
The above-described sole, as set forth in prior application DOS (German laid-open applica-tion) No 29~oL~540 provides a simple way of individually adapting the cushioning capability of the sole, without 20 detrimentally affecting the ~eel of the~track or surface for the runner runnlng thereon. The present invention is concerned with a further improvement and aspect of the ~invention as set forth in the main application, in particular in regard;to influencing the cushioning ~ 25 capability of -the sole by the support member or members.
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For this purpose, the present invention proposes that the recess in the heel wedge of the sole i5 narrower in cross-section, at least in a region-wise manner, than the support member for ~itting therein.
As the heel wedge comprises a comparatively soft material, for example a polyurethane foam, for properly performing its ~unction, while the support member, although being capable of deformation in compression and/or bending, for properly performing its function, is nonetheless of grea-ter hardness than the material of the heel wedge, taken generally, for the purposes of establishing the cushioning capability, the heel wedge is subject to a compression effect in the region around the recess, after the support member is inserted. It will be appre~ated that this compression ef~ect in the region around the recess results in the material having a higher degree of resistance to compression and bending deformation, that is to say, the heel wedge is locally stiffened in the region around the ; recess or recesses. The extent of local compacting o~ the heel wedge material depends on the degree of oversize by which the outside dimensions of the support member exceed the inside dimensions of the recess before the support member is fitted thereinto. In this way, the stif~ening action in respect of the heel wedge under the heel support surface, which is the aim to be achieved in accordance with the principle of this invention, may be achieved to a certain extent by a deliberately produced compression effect in the material o~ the heel wedge.
This is advantageous for the reason that the sti~fening in the sole, which can be achieved in this way, does not occur abruptly at the boundary surface of the recess with the support member, but is already beginning to occur in the heel wedge itself, and gradually increases towards the ~ 1620~4 recess. In addition, this arrangement makes it possible for the support members and the recesses to be of smaller dimensions as the lower levels of hardness and bending strength which result from the reduced dimensions are compensated for by the resulting compression effect and thus stiffening effect in the region around the recess.
; In accordance with an advantageous development of this invention, the support member is in the form of a plurality of solid bar members of plastics material, which are capable of deforma-tion in compression and /or deformation in bending and which are provided a-t one end with a collar portion intended to bear against the edge of the sole, while in their other end portion, the bar members have a plurality of spaced-apart annular collar portions. As a result of the support membe~ being oversized relative to the recess, the wall of the recess presses forcefully against the outside surface of the support membersO Therefore, with the above-described advantageous configuration of the support member, there is no need to take special steps for fixing the support members in the recess. In particular, the wall of the recess presses into the intermediate spaces which are formed between the annular coIlar portions in one end section of the support member, and thus, in addition to a considerable frictional grip, also produces a positive or form-locking engagement~which prevents the support members from unintentionally coming ou-t of the recess while the wearer of the shoe is running.
; In order to be able to fit the support members into the recess, in spite b~ the oversize of ;the support members, the invention proposes a simple device which is particularly suitable for that purpose. The device is intended for a sole design in which the recess or recesses is or are open to the oppositely disposed edges of the sole~ According ... . ,, . . , ~ , .. ~
1 ~620~
to the invention, -the device comprises a tube which has a pushing and pulling handle and which can be inserted into the recess in the sole, thereby simultaneously expanding the recess, the internal cross-section of the tube~ in respect of shape and dimensions, being suitable for receiving a support member and being adapted thereto 9 and the length of the tube at least approximately corresponding to the length of the recess. The tube can be inserted into the recess, thereby causing the recess to be enlarged, in such a way that the free end of the tube lies in the vicinity of the corresponding end of the recess, or even projects out of that end of the recess. A support member is now introduced into the tube so that the collar portion provided on the support member at the end thereof bears against the end of the tube of the device, and the tube is pulled back again through the recess. The support member remains with its end collar portion bearing against the edge of the sole, around the mouth of the recess, and is pulled out of the tube as the tube is moved backwards out of the recess~ In this operation, the wall of the recess progressively comes to bear against the outside surface of the support member and embraces the outside surface of the support member with a frictional and positive ~ engagement, in the manner described hereinbefore.
; 25 Desirably, the tube~is locally expanded outwardly just before its free end, thereby ~orming a flat or shallow bead, and the free end forms a readily de~ormable thin-walled edge portion. The thin-walled edge portion permits the tube to be easily inserted into the recess; the local bead configuration reduces the force required for inserting and retracting the tube.
An embodiment of the invention is described in greater detail hereinafter with reference to the accompanying drawings in which:
, ''~ :
1 ~6204~
Figures 1 and 2 show a view from below and a side view respectively of part of a heel region o~ a sports shoe provided with the sole according to the invention9 Figure 3 shows a device for inserting a support member into the sole shown in Figures 1 and 2, and Figure 4 shows a support member for fitting into the sole shown in Figures 1 and 2.
The sports shoe of which Figures 1 and 2 show only the heel region of the sole9 is for example a tennis shoe with an uppers portion 1 and an outer sole in the form of a dished-type sole which at least in the heel region ~orms a heel wedge 2. In the usual manner, the dished-type sole ; is taken somewhat up the uppers portion 1 of the shoe and is joined thereto by adhesive or by s-ti-tching or by being directly injected -thereon. At least in the region forming the heel wedge 2 9 the sole comprises a light and comparatively soft polyurethane foam which has a Shore hardness of about 35. The tread or ground-engaging side of the sole is provided with tread profiling (not shown herein)~
A shallow edge recess 5 is formed at each of the ~ two opposite side edges 3 and L~ of the sole. Three bores ;; 6 which extend parallel to each other open into the two recesses 5 in the edges of the sole; the bores 6 extend between the heel support surface and the tread side of ~ 25 the heel wedge 2, and parallel thereto. The bores 6 ; are directed transversely with respect to the longitudinal direction of the sole, and are also substantially parallel to each other. The distances between the bores are desirably equal, but this is not necessarily the case;
it is possible to envisage the front bore 6 being positioned somewhat further forward.
A bar-shaped support member 7 as shown in Figure 4 is intended for iitting into the bores 6. The suppor-t member 7 .
I 1~20~4 comprises an elastomeric plastics material, for example an elastically yielding polyure-thane, and is both capable of deformation in compression and also resiliently bendable transversely with respect to the longitudinal axis thereof.
At its left-hand end, the support member 7 has a collar portion 8 which, when the support member is fitted into the bore 6, is lntended to bear respectively against the side edge 3 or 4 of the sole or in the bottom of -the recess 5.
At the opposite end 9 of the support member, the diameter of the support member 7 is no greater than in the cylindrical shank portion 10 adjoining the collar portion 8. Provided in the end portion 11 which is in front of the free end 9 are six spaced-apart annular collar portions 12, the outside diameter of which is less than the outside diameter of the collar portion 8. In a practical embodimentJ the shank diameter in the shank portion 10 is for example 8 mm while the diameter o~ the annular collar portions is 10 mm.
The diameter 13 of the bores 6 is smaller -than the shank diameter of the shank portion 10. The dif~erence in diameters may be for example up to 1 mm and more. When therefore the support member 7 is fitted into one of the bores 6 in such a way that it extends from one end of the bore to the other end, then the support member compresses and compacts the material of the heel wedge 2 in the region around the associated bore 6, and stiffens the heel wedge 2 in respect of further compression and bending deformation, as described hereinbe~ore. In addition, the wall of the corresponding bore 6 presses locally into the axial intermediate spaces which are formed be-tween the annular collar portions 12, and fixes the support member in the bore 6 7 SO as to prevent unintentional axial shifting thereof. There is therefore no need to take special steps to fix the support member in -the bore.
1 ~6204~
Because of the oversize in respect of diameter of the support member 7 relative to the bore 6, it is dif~icult ; ~ for the support member 7 to be readily inserted into the bore 6. The device shown in Figure 3 is provided for that purpose, and subs-tantially comprises a -tube 14 and a handle 15 which is fixedly connected thereto. The handle 15 is of such a configuration that the -tube 14 can be pressed into one of the bores 6, using the palm of a hand, but can subsequently be pulled out of the bore again by gripping the handle with fingers around round recesses 16. The length of the tube 14 is at least equal to the length of the support member 7; the inside diameter of the tube 14 is such that the support member 7 can be easily introduced thereinto.
In the ~icinity of the free end of the tube 14, the wall of the tube is bulged out to form a shallow bead 17. Disposed adjoining the bead 17 is an edge portion 18 which is o~
thinner wall thickness and which is easily deformable, in comparison with the rigidity o~ the wall of the tube 14.
The support member 7 is inserted by means of the device shown in Figure 3 by the tube 11~ ~irst being pushed through one o~ the bores 6 until it projects out of the opposite mouth end of the bore. A support member 7 is then introduced into the tube 14, and the tube is then pulled backO As the tube is pulled back through the bore, the collar portion 8 comes to bear against the respective edge 3 or 4 of thé sole or the bottom of the associated recess 5 ~; - so that, as the device is pulled further back through the ; bore, the support member 7 is pulled slowly out o~ the tube 14. The bead 17 ensures that the wall of the bore 6 comes to lie properly against the outside surface of the support member 7, in the region of the ~ree end 18 of the tube.
::: :
.
~ ~2~
g .
The device preferably comprises an elastically de~ormable plastics material, ~or example polyamide.
In the above-described embodiment, the bores 6 are smaller in cross-section, over their entire length, than the support members 7 so that the material surrounding -the bores 6 is compacted over the entire leng-th of the bores.
However, that is not necessarily the case. It is also poss~ble for the oversize in respect of the support members 7 in relation to the diameter 13 of the bores 6 to be provided only in the end regions of the support members 7, which is desirably ef~ected by a shoulder in the region of the collar portion ô and by the annular collar portions 12. Compacting of the material which results from this arrangement, in the end regions of the support members 7, also gives the desired effect according to the invention, of a continuous increase in rigidity laterally of the point of main loading by the heel, while in addition providing the desired action of fixing the support members 7 within the bore 6, without additional holding meansO
In the above-described embodiment, the bores 6 are straight and are arranged parallel to the support surface or tread side of the sole, and the support mernbers 7 are correspondingly straight. In this respect also however it is possible to achieve better adaptation to the curved underneath surface of the human heel, if either the bores 6 are of such a configuration as to be curved downwardly ; in the heel wedge 2 so that the support;members 7, ~ ~which are then inserted with a given degree o~ prestressing, ; ~ form in their entirety a downwardly curved 'grid'l or if the support members 7 are increased in thickness in an `~ - upward direction in their end regions before the collar portion 8 and in the region 11, so that, in those regionsJ
the support members cause a more accentuated compacting
The invention relates to a sole for sports shoes, in particular for use on hard surfaces, which has or forms a heel wedge of an elastic relatively softly yielding~material, whereing in the region under the s~pport surface for the heel, the heel wedge has at least one recess which is accessible from ~he edge of the sole and which extends approximately parallel to the support surface and to the tread side o~ the sole and into which a resiliently bendable support member can be replaceably fitted, the support member substantially filling the recess.
:
The invention also relates to a device for fitting a said support member into such a sole which has at least one recess which is open towards opposite edges of the sole.
` ::
The above-described sole, as set forth in prior application DOS (German laid-open applica-tion) No 29~oL~540 provides a simple way of individually adapting the cushioning capability of the sole, without 20 detrimentally affecting the ~eel of the~track or surface for the runner runnlng thereon. The present invention is concerned with a further improvement and aspect of the ~invention as set forth in the main application, in particular in regard;to influencing the cushioning ~ 25 capability of -the sole by the support member or members.
::::
:~
~:
..,,;
For this purpose, the present invention proposes that the recess in the heel wedge of the sole i5 narrower in cross-section, at least in a region-wise manner, than the support member for ~itting therein.
As the heel wedge comprises a comparatively soft material, for example a polyurethane foam, for properly performing its ~unction, while the support member, although being capable of deformation in compression and/or bending, for properly performing its function, is nonetheless of grea-ter hardness than the material of the heel wedge, taken generally, for the purposes of establishing the cushioning capability, the heel wedge is subject to a compression effect in the region around the recess, after the support member is inserted. It will be appre~ated that this compression ef~ect in the region around the recess results in the material having a higher degree of resistance to compression and bending deformation, that is to say, the heel wedge is locally stiffened in the region around the ; recess or recesses. The extent of local compacting o~ the heel wedge material depends on the degree of oversize by which the outside dimensions of the support member exceed the inside dimensions of the recess before the support member is fitted thereinto. In this way, the stif~ening action in respect of the heel wedge under the heel support surface, which is the aim to be achieved in accordance with the principle of this invention, may be achieved to a certain extent by a deliberately produced compression effect in the material o~ the heel wedge.
This is advantageous for the reason that the sti~fening in the sole, which can be achieved in this way, does not occur abruptly at the boundary surface of the recess with the support member, but is already beginning to occur in the heel wedge itself, and gradually increases towards the ~ 1620~4 recess. In addition, this arrangement makes it possible for the support members and the recesses to be of smaller dimensions as the lower levels of hardness and bending strength which result from the reduced dimensions are compensated for by the resulting compression effect and thus stiffening effect in the region around the recess.
; In accordance with an advantageous development of this invention, the support member is in the form of a plurality of solid bar members of plastics material, which are capable of deforma-tion in compression and /or deformation in bending and which are provided a-t one end with a collar portion intended to bear against the edge of the sole, while in their other end portion, the bar members have a plurality of spaced-apart annular collar portions. As a result of the support membe~ being oversized relative to the recess, the wall of the recess presses forcefully against the outside surface of the support membersO Therefore, with the above-described advantageous configuration of the support member, there is no need to take special steps for fixing the support members in the recess. In particular, the wall of the recess presses into the intermediate spaces which are formed between the annular coIlar portions in one end section of the support member, and thus, in addition to a considerable frictional grip, also produces a positive or form-locking engagement~which prevents the support members from unintentionally coming ou-t of the recess while the wearer of the shoe is running.
; In order to be able to fit the support members into the recess, in spite b~ the oversize of ;the support members, the invention proposes a simple device which is particularly suitable for that purpose. The device is intended for a sole design in which the recess or recesses is or are open to the oppositely disposed edges of the sole~ According ... . ,, . . , ~ , .. ~
1 ~620~
to the invention, -the device comprises a tube which has a pushing and pulling handle and which can be inserted into the recess in the sole, thereby simultaneously expanding the recess, the internal cross-section of the tube~ in respect of shape and dimensions, being suitable for receiving a support member and being adapted thereto 9 and the length of the tube at least approximately corresponding to the length of the recess. The tube can be inserted into the recess, thereby causing the recess to be enlarged, in such a way that the free end of the tube lies in the vicinity of the corresponding end of the recess, or even projects out of that end of the recess. A support member is now introduced into the tube so that the collar portion provided on the support member at the end thereof bears against the end of the tube of the device, and the tube is pulled back again through the recess. The support member remains with its end collar portion bearing against the edge of the sole, around the mouth of the recess, and is pulled out of the tube as the tube is moved backwards out of the recess~ In this operation, the wall of the recess progressively comes to bear against the outside surface of the support member and embraces the outside surface of the support member with a frictional and positive ~ engagement, in the manner described hereinbefore.
; 25 Desirably, the tube~is locally expanded outwardly just before its free end, thereby ~orming a flat or shallow bead, and the free end forms a readily de~ormable thin-walled edge portion. The thin-walled edge portion permits the tube to be easily inserted into the recess; the local bead configuration reduces the force required for inserting and retracting the tube.
An embodiment of the invention is described in greater detail hereinafter with reference to the accompanying drawings in which:
, ''~ :
1 ~6204~
Figures 1 and 2 show a view from below and a side view respectively of part of a heel region o~ a sports shoe provided with the sole according to the invention9 Figure 3 shows a device for inserting a support member into the sole shown in Figures 1 and 2, and Figure 4 shows a support member for fitting into the sole shown in Figures 1 and 2.
The sports shoe of which Figures 1 and 2 show only the heel region of the sole9 is for example a tennis shoe with an uppers portion 1 and an outer sole in the form of a dished-type sole which at least in the heel region ~orms a heel wedge 2. In the usual manner, the dished-type sole ; is taken somewhat up the uppers portion 1 of the shoe and is joined thereto by adhesive or by s-ti-tching or by being directly injected -thereon. At least in the region forming the heel wedge 2 9 the sole comprises a light and comparatively soft polyurethane foam which has a Shore hardness of about 35. The tread or ground-engaging side of the sole is provided with tread profiling (not shown herein)~
A shallow edge recess 5 is formed at each of the ~ two opposite side edges 3 and L~ of the sole. Three bores ;; 6 which extend parallel to each other open into the two recesses 5 in the edges of the sole; the bores 6 extend between the heel support surface and the tread side of ~ 25 the heel wedge 2, and parallel thereto. The bores 6 ; are directed transversely with respect to the longitudinal direction of the sole, and are also substantially parallel to each other. The distances between the bores are desirably equal, but this is not necessarily the case;
it is possible to envisage the front bore 6 being positioned somewhat further forward.
A bar-shaped support member 7 as shown in Figure 4 is intended for iitting into the bores 6. The suppor-t member 7 .
I 1~20~4 comprises an elastomeric plastics material, for example an elastically yielding polyure-thane, and is both capable of deformation in compression and also resiliently bendable transversely with respect to the longitudinal axis thereof.
At its left-hand end, the support member 7 has a collar portion 8 which, when the support member is fitted into the bore 6, is lntended to bear respectively against the side edge 3 or 4 of the sole or in the bottom of -the recess 5.
At the opposite end 9 of the support member, the diameter of the support member 7 is no greater than in the cylindrical shank portion 10 adjoining the collar portion 8. Provided in the end portion 11 which is in front of the free end 9 are six spaced-apart annular collar portions 12, the outside diameter of which is less than the outside diameter of the collar portion 8. In a practical embodimentJ the shank diameter in the shank portion 10 is for example 8 mm while the diameter o~ the annular collar portions is 10 mm.
The diameter 13 of the bores 6 is smaller -than the shank diameter of the shank portion 10. The dif~erence in diameters may be for example up to 1 mm and more. When therefore the support member 7 is fitted into one of the bores 6 in such a way that it extends from one end of the bore to the other end, then the support member compresses and compacts the material of the heel wedge 2 in the region around the associated bore 6, and stiffens the heel wedge 2 in respect of further compression and bending deformation, as described hereinbe~ore. In addition, the wall of the corresponding bore 6 presses locally into the axial intermediate spaces which are formed be-tween the annular collar portions 12, and fixes the support member in the bore 6 7 SO as to prevent unintentional axial shifting thereof. There is therefore no need to take special steps to fix the support member in -the bore.
1 ~6204~
Because of the oversize in respect of diameter of the support member 7 relative to the bore 6, it is dif~icult ; ~ for the support member 7 to be readily inserted into the bore 6. The device shown in Figure 3 is provided for that purpose, and subs-tantially comprises a -tube 14 and a handle 15 which is fixedly connected thereto. The handle 15 is of such a configuration that the -tube 14 can be pressed into one of the bores 6, using the palm of a hand, but can subsequently be pulled out of the bore again by gripping the handle with fingers around round recesses 16. The length of the tube 14 is at least equal to the length of the support member 7; the inside diameter of the tube 14 is such that the support member 7 can be easily introduced thereinto.
In the ~icinity of the free end of the tube 14, the wall of the tube is bulged out to form a shallow bead 17. Disposed adjoining the bead 17 is an edge portion 18 which is o~
thinner wall thickness and which is easily deformable, in comparison with the rigidity o~ the wall of the tube 14.
The support member 7 is inserted by means of the device shown in Figure 3 by the tube 11~ ~irst being pushed through one o~ the bores 6 until it projects out of the opposite mouth end of the bore. A support member 7 is then introduced into the tube 14, and the tube is then pulled backO As the tube is pulled back through the bore, the collar portion 8 comes to bear against the respective edge 3 or 4 of thé sole or the bottom of the associated recess 5 ~; - so that, as the device is pulled further back through the ; bore, the support member 7 is pulled slowly out o~ the tube 14. The bead 17 ensures that the wall of the bore 6 comes to lie properly against the outside surface of the support member 7, in the region of the ~ree end 18 of the tube.
::: :
.
~ ~2~
g .
The device preferably comprises an elastically de~ormable plastics material, ~or example polyamide.
In the above-described embodiment, the bores 6 are smaller in cross-section, over their entire length, than the support members 7 so that the material surrounding -the bores 6 is compacted over the entire leng-th of the bores.
However, that is not necessarily the case. It is also poss~ble for the oversize in respect of the support members 7 in relation to the diameter 13 of the bores 6 to be provided only in the end regions of the support members 7, which is desirably ef~ected by a shoulder in the region of the collar portion ô and by the annular collar portions 12. Compacting of the material which results from this arrangement, in the end regions of the support members 7, also gives the desired effect according to the invention, of a continuous increase in rigidity laterally of the point of main loading by the heel, while in addition providing the desired action of fixing the support members 7 within the bore 6, without additional holding meansO
In the above-described embodiment, the bores 6 are straight and are arranged parallel to the support surface or tread side of the sole, and the support mernbers 7 are correspondingly straight. In this respect also however it is possible to achieve better adaptation to the curved underneath surface of the human heel, if either the bores 6 are of such a configuration as to be curved downwardly ; in the heel wedge 2 so that the support;members 7, ~ ~which are then inserted with a given degree o~ prestressing, ; ~ form in their entirety a downwardly curved 'grid'l or if the support members 7 are increased in thickness in an `~ - upward direction in their end regions before the collar portion 8 and in the region 11, so that, in those regionsJ
the support members cause a more accentuated compacting
2~4 action than in their central region, in the ma-terial around the associated bores 6. These two arrangements provide a kind of bed for receiving the foot, at the heel, and this results in the foot being supported in a highly 5 advantageous manner and located in a sideways direction.
In order to avoid the support members being incorrectly fitted into the bores 6j in the situation where the support members 7 are additionally increased in thickness in an upward direction in their end regions, which would result in the opposite effect ~o that desired~ it is desirable for the support members 7 and the associated bores 6 not to be of circular cross-section, but o~
polygonal cross-section. For examplej the cross-section may be of a triangular configuration, with one side of the l5 ;triangle being disposed parallel to the support sur~ace for the heel so that in use there is no possibillty o an~undesirèd varlation caused by rotary mo~ement o~ the support members 7.
In order to facilitate inserting the tube 14 into the bores 6;when~he sole ls made of given materials,~for example rubber9 with a correspondingly high ~rictional ` value, ~it lS~ possible to envisage either providing hcn~ng up the tube so th t ~ r f ~ i the tube.
:
: ~ :
::
~: :
In order to avoid the support members being incorrectly fitted into the bores 6j in the situation where the support members 7 are additionally increased in thickness in an upward direction in their end regions, which would result in the opposite effect ~o that desired~ it is desirable for the support members 7 and the associated bores 6 not to be of circular cross-section, but o~
polygonal cross-section. For examplej the cross-section may be of a triangular configuration, with one side of the l5 ;triangle being disposed parallel to the support sur~ace for the heel so that in use there is no possibillty o an~undesirèd varlation caused by rotary mo~ement o~ the support members 7.
In order to facilitate inserting the tube 14 into the bores 6;when~he sole ls made of given materials,~for example rubber9 with a correspondingly high ~rictional ` value, ~it lS~ possible to envisage either providing hcn~ng up the tube so th t ~ r f ~ i the tube.
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Claims (4)
1 A sole for sports shoes, in particular for use on hard surfaces, which has or forms a heel wedge of an elastic relatively softly yielding material, wherein, in the region under the support surface for the heel, the heel wedge has at least one recess which is accessible from the edge of the sole and which extends approximately parallel to the support surface and to the tread side of the sole and into which a resiliently bendable support member can be replaceably fitted, the support member substantially filling the recess, characterised in that the recess (6) is narrower in cross-section, at least in a region-wise manner, than the support member (7) which can be fitted therein.
2. A sole according to claim 1 characterised in that the support member (7) is in the form of a plurality of solid bar members of plastics material, which are capable of deformation in compression and/or deformation in bending and which are provided at one end with a collar portion (8) intended to bear against the edge (3,4) of the sole while in the other end portion (11) the bar members have a plurality of spaced-apart annular collar portions (12).
3. Device for fitting a support member into a sole as set forth in the classifying portion of claim 1, having at least one recess which is open towards opposite edges of the sole, characterised in that the device comprises a tube (14) which has a pushing and pulling handle (15, 16) and which can be inserted into the recess (6) of the sole, thereby simultaneously expanding the recess (6), the internal cross-section of the tube, in respect of shape and dimensions, being suitable for receiving a support member (7), and the length of the tube at least approximately corresponding to the length of the recess (6).
4. A device according to claim 3 characterised in that the tube (14) is locally expanded outwardly just before its free end, thereby forming a shallow bead (17), and the free end forms a readily deformable thin-walled edge portion (18).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803029258 DE3029258A1 (en) | 1980-08-01 | 1980-08-01 | SOLE FOR SPORTSHOES, ESPECIALLY FOR USE ON HARD RAILS AND DEVICE FOR INSERTING A SUPPORT IN THE SOLE |
| DEP3029258.1 | 1980-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1162044A true CA1162044A (en) | 1984-02-14 |
Family
ID=6108705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000381878A Expired CA1162044A (en) | 1980-08-01 | 1981-07-16 | Sole for sports shoes, in particular for use on hard surfaces, and a device for fitting a support member into the sole |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS6051881B2 (en) |
| KR (1) | KR840001645B1 (en) |
| AR (1) | AR227913A1 (en) |
| AT (1) | AT386325B (en) |
| CA (1) | CA1162044A (en) |
| DE (1) | DE3029258A1 (en) |
| FR (1) | FR2487646B1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4551930A (en) * | 1983-09-23 | 1985-11-12 | New Balance Athletic Shoe, Inc. | Sole construction for footwear |
| DE3430845A1 (en) * | 1983-12-09 | 1985-07-04 | adidas Sportschuhfabriken Adi Dassler Stiftung & Co KG, 8522 Herzogenaurach | OUTSOLE FOR SHOES, ESPECIALLY SPORTSHOES WITH ADJUSTABLE HEEL DAMPING |
| IT8430738V0 (en) * | 1984-05-18 | 1984-05-18 | Danieli Calzaturificio Spa | DIVERSIFIABLE SICKNESS SOLE STRUCTURE. |
| US4654983A (en) * | 1984-06-05 | 1987-04-07 | New Balance Athletic Shoe, Inc. | Sole construction for footwear |
| US4656760A (en) * | 1985-02-26 | 1987-04-14 | Kangaroos U.S.A., Inc. | Cushioning and impact absorptive means for footwear |
| EP0298449A3 (en) * | 1987-07-06 | 1989-08-23 | Reebok International Ltd. | Tubular cushioning system for shoes |
| EP0315340B1 (en) * | 1987-11-06 | 1995-02-15 | Nike International Ltd | Athletic shoe with pronation control device |
| US5046267A (en) * | 1987-11-06 | 1991-09-10 | Nike, Inc. | Athletic shoe with pronation control device |
| USD315634S (en) | 1988-08-25 | 1991-03-26 | Autry Industries, Inc. | Midsole with bottom projections |
| JPH0636726Y2 (en) * | 1990-06-27 | 1994-09-28 | アキレス株式会社 | Shock absorption structure of the sole |
| JPH0575023U (en) * | 1992-03-19 | 1993-10-12 | 日産車体株式会社 | Anchor for seat belt |
| IT1282498B1 (en) * | 1995-11-15 | 1998-03-23 | Diadora Spa | STABILITY SUPPORT, ESPECIALLY FOR THE CONTROL OF PRONATION IN SPORTS SHOES. |
| DE20320091U1 (en) | 2003-12-23 | 2005-05-12 | Puma Aktiengesellschaft Rudolf Dassler Sport | shoe |
| DE202009004313U1 (en) | 2009-03-26 | 2009-06-25 | Solor Schuhforschung Und Entwicklung-Gmbh | Orthopedic shoe |
| US10316803B2 (en) | 2017-09-25 | 2019-06-11 | Woodward, Inc. | Passive pumping for recirculating exhaust gas |
| US10995705B2 (en) | 2019-02-07 | 2021-05-04 | Woodward, Inc. | Modular exhaust gas recirculation system |
| CN213175878U (en) | 2020-01-08 | 2021-05-11 | 伍德沃德有限公司 | Exhaust gas recirculation mixer and engine system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR958766A (en) * | 1950-03-17 | |||
| US2885797A (en) * | 1957-08-16 | 1959-05-12 | Edward W Chrencik | Shoe construction with resilient heel and arch support |
| US3054197A (en) * | 1958-04-21 | 1962-09-18 | John T Riddell Inc | Snap-on shoe cleat asembly |
| US3087262A (en) * | 1961-04-24 | 1963-04-30 | Forward Slant Sole Company | Resilient shoe sole |
| US3696494A (en) * | 1971-03-08 | 1972-10-10 | Halkey Roberts Corp | Valve extractor |
| DE2154951A1 (en) * | 1971-11-05 | 1973-05-10 | Toth | STUDS FOR SPORT SHOES |
| DE2904540C2 (en) * | 1979-02-07 | 1990-06-21 | Adidas Sportschuhfabriken Adi Dassler Kg, 8522 Herzogenaurach | Sole for sports shoes |
| AT371978B (en) * | 1979-02-07 | 1983-08-25 | Adidas Sportschuhe | SOLE FOR SPORTSHOES, ESPECIALLY FOR USE ON HARD RAILWAYS |
-
1980
- 1980-08-01 DE DE19803029258 patent/DE3029258A1/en active Granted
-
1981
- 1981-02-24 AR AR284420A patent/AR227913A1/en active
- 1981-07-09 AT AT0302781A patent/AT386325B/en not_active IP Right Cessation
- 1981-07-16 CA CA000381878A patent/CA1162044A/en not_active Expired
- 1981-07-25 KR KR1019810002707A patent/KR840001645B1/en active
- 1981-07-31 JP JP56120587A patent/JPS6051881B2/en not_active Expired
- 1981-07-31 FR FR8114979A patent/FR2487646B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AR227913A1 (en) | 1982-12-30 |
| ATA302781A (en) | 1988-01-15 |
| DE3029258C2 (en) | 1990-07-12 |
| JPS6051881B2 (en) | 1985-11-16 |
| DE3029258A1 (en) | 1982-04-01 |
| KR840001645B1 (en) | 1984-10-12 |
| AT386325B (en) | 1988-08-10 |
| KR830005673A (en) | 1983-09-09 |
| FR2487646A1 (en) | 1982-02-05 |
| FR2487646B1 (en) | 1985-10-04 |
| JPS5772601A (en) | 1982-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |