Shock-absorbing sole and shoe with the same
By inserting shock absorbers made of TPU material into the foamed sole of sports shoes, the problem of short service life of foamed soles is solved, and the effect of extending service life and maintaining elastic shock absorption is achieved. It is also suitable for shoes with different sole thicknesses, reducing production costs.
Patent Information
- Application Number
- CN202310001605.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-03
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2043-01-03
AI Technical Summary
The foamed soles of existing sports shoes are prone to hardness after being used for a period of time, and their elastic shock absorption capacity decreases, resulting in a short service life.
A shock absorber made of TPU material is embedded at the bottom of the foam sole. The shock absorber includes two buffer parts and a connecting part. The buffer part is smoothly transitioned in an arc and a shock absorber cavity and a buffer reinforcement are provided inside the connecting part.
It extends the service life of foamed soles, maintains good elastic shock absorption, and is suitable for shoes with different sole thicknesses, without the need to process multiple pairs of molds, saving processing costs.
Smart Images

Figure CN115998040B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of shoe design, and in particular to a shock-absorbing sole and a shoe having the shock-absorbing sole. Background Art
[0002] Shoes are items worn on the feet for walking. There are many types of shoes, including leather shoes, casual shoes, sports shoes, hiking shoes, etc. Among them, sports shoes are shoes designed and manufactured according to the characteristics of people participating in sports or traveling. They are generally soft and elastic, and can play a certain cushioning role when people exercise, reducing the occurrence of ankle injuries.
[0003] At present, the soles of existing sports shoes are usually foam soles, which are generally made of EVA material or PU material. The foam structure of the foam material can make the sole have good elastic shock absorption ability, so that people can wear it when exercising. However, due to the poor deformation resistance of the foam sole, the foam sole may become flat and hard after wearing the sports shoes for a period of time. After the foam sole is stepped on, its elastic shock absorption ability decreases or even loses, resulting in a short service life of the foam sole and the shoes, which needs to be improved. Summary of the invention
[0004] In order to extend the service life of the sole while maintaining the elastic shock-absorbing ability of the sole, the present application provides a shock-absorbing sole.
[0005] In the first aspect, the present application provides a shock-absorbing sole adopting the following technical solution:
[0006] A shock-absorbing sole comprises a foam sole and a shock-absorbing component embedded and fixed at the bottom of the foam sole; wherein the shock-absorbing component is made of TPU material, comprises two buffer parts and a connecting part arranged between the two buffer parts, and an arc-shaped smooth transition is formed between the buffer part and the connecting part; the shape of the buffer part is adapted to the shape of the foam sole, and the middle area of the buffer part is recessed in a direction close to the connecting part.
[0007] By adopting the above-mentioned technical scheme, the shock-absorbing component made of TPU material in the present application has elastic shock-absorbing ability and also has a certain anti-deformation ability. By embedding and fixing the shock-absorbing component on the bottom of the foam sole, the buffering part located at the top can withstand the squeezing force of people's feet on the foam sole, and the buffering part located at the bottom can withstand the reaction force from the ground. The supporting effect of the connecting part can reduce the possibility of excessive deformation of the foam sole, thereby extending the service life of the foam sole.
[0008] In addition, since the middle part of the buffer part at the bottom is concave, the buffer part can be forced to bend and deform upward when the foam sole touches the ground; and since the foam sole wraps the outer peripheral surface of the connecting part and the opposite sides of the two buffer parts, the buffer part can squeeze the foam sole to deform together when it bends and deforms upward, thereby generating elastic force to offset the reaction force from the ground, so that the foam sole has a good service life while maintaining good elastic shock absorption ability, which is convenient for people to exercise or travel.
[0009] Optionally, a shock absorbing cavity is provided inside the connecting part, and two ends of the shock absorbing cavity respectively penetrate through the adjacent buffer parts on both sides; the longitudinal cross-sectional size of the shock absorbing cavity gradually increases from the middle of the shock absorbing cavity to the two ends of the shock absorbing cavity.
[0010] By adopting the above-mentioned technical solution and setting a shock-absorbing chamber, when people step on the foam sole to make it touch the ground, the buffer parts on both sides are deformed by force and move closer to each other, which can force the connecting part to deform and shrink in the direction close to the shock-absorbing chamber, thereby providing space for the foam sole to deform and make way, reducing the possibility of the foam sole being stepped on and compacted, so as to maintain a good service life of the foam sole.
[0011] Optionally, a buffer reinforcement is filled inside the shock absorbing cavity, and the buffer reinforcement includes a rubber sleeve and a rubber ball filled inside the rubber sleeve. The shape of the rubber sleeve is adapted to the shape of the shock absorbing cavity, and the two side ends of the rubber sleeve are respectively glued and fixed to the two buffer parts.
[0012] By adopting the above technical solution, by filling the buffer reinforcement member inside the shock absorbing cavity, the buffer reinforcement member can play a role in assisting the support of the foam sole, reducing the occurrence of insufficient buffer support capacity of the shock absorbing member due to the opening of the shock absorbing cavity. In specific use, by filling the rubber sleeve inside the shock absorbing cavity, the foam sole and the connecting part are forced to shrink and deform inward when they are deformed by force. At this time, the rubber ball filled inside the rubber sleeve can move after being stressed to avoid bending deformation of the foam sole and the connecting part, thereby reducing the phenomenon of the foam sole becoming flat and hard while the shock absorbing member assists in supporting the foam sole.
[0013] Optionally, there are multiple shock-absorbing chambers, each of which is respectively arranged at the forefoot position, arch position and heel position of the foam sole; there are multiple groups of buffer reinforcement members, all of which are respectively arranged in the shock-absorbing chambers at the forefoot position and the heel position.
[0014] By adopting the above-mentioned technical scheme, the provision of multiple shock-absorbing chambers and multiple buffer reinforcements can further improve the supporting strength and service life of the foam sole; in addition, by arranging the buffer reinforcements at the forefoot and heel positions of the foam sole, the supporting force at the arch position where the buffer reinforcements are not set is weaker, and the force acting on the arch position of some people with flat feet when wearing shoes is smaller, which can improve the comfort of people with flat feet when walking.
[0015] Optionally, the connecting part includes a first connecting section and a second connecting section, and the first connecting section and the second connecting section are respectively arranged on adjacent sides of the two buffer parts; the outer edge size of the first connecting section is adapted to the inner edge size of the second connecting section, the first connecting section is matched and inserted into the inner edge of the second connecting section, and a sliding structure is provided between the first connecting section and the second connecting section to realize the adjustment of the distance between the two connecting parts.
[0016] By adopting the above-mentioned technical scheme, since the thickness of the soles of different types of shoes is different, and the thickness of the soles of different sizes of the same shoe is also different, in order to make the shock-absorbing plate suitable for the corresponding type of shock-absorbing sole, it is often necessary to manufacture multiple pairs of molds of different models to process shock-absorbing plates of different sizes, which is expensive and wasteful; the present application can change the overall thickness of the shock-absorbing component by plugging the first connecting section and the second connecting section of the two buffer parts together and adjusting the distance between the two buffer parts by using the sliding structure, so that the shock-absorbing component can be suitable for various types of shoes with different sole thicknesses, and there is no need to process multiple pairs of molds to manufacture shock-absorbing plates of different sizes, which can save the processing cost of the front-end process, thereby reducing the sales price of the shoes made of the shock-absorbing soles and improving the market competitiveness.
[0017] Optionally, the sliding structure includes a sliding groove provided on the outer side surface of the first connecting section and a movable block provided on the second connecting section; wherein the inner side surface of the second connecting section is provided with a movable groove, and the extension direction of the movable groove is perpendicular to the extension direction of the second connecting section; the movable block is matched and installed in the movable groove, and the movable block is freely slidable in the movable groove;
[0018] The sliding groove includes a sliding area and multiple limiting areas, the extension direction of the sliding area is the same as the extension direction of the first connecting section; the limiting areas are jointly arranged on the same side wall of the sliding area, and all the limiting areas are arranged at intervals along the extension direction of the sliding area; an elastic component is also provided inside the sliding area, and the elastic component is used to drive the movable block to move and be stuck inside one of the limiting areas.
[0019] By adopting the above technical solution, by arranging an elastic component inside the sliding area, the elastic force of the elastic component normally forces the movable block to be stuck in one of the limiting areas, which can limit the relative movement between the two buffer parts, so that the overall thickness of the shock absorber can be maintained, so as to facilitate the subsequent embedding and fixing of the shock absorber in the foam sole. When the thickness of the shock absorber needs to be adjusted, by forcing the two buffer parts to move away from each other, the movable block can move along the side wall of the limiting area, squeeze the elastic component and enter the sliding area. When the movable block moves to a position that is opposite to the next limiting area, the elastic force of the elastic component forces the movable block to be stuck in the adjacent limiting area again, thereby quickly and conveniently completing the adjustment of the spacing between the two buffer parts, which is convenient for use.
[0020] Optionally, the elastic component includes an elastic band, two ends of which are respectively fixed at two side ends of the sliding area; the width of the elastic band is adapted to the width of the sliding area, and a plurality of clearance grooves are provided on the side of the elastic band close to the limiting area, and each clearance groove is staggered with each limiting area.
[0021] By adopting the above-mentioned technical solution, by adapting the width of the elastic band to the width of the sliding area, when the two buffer parts are forced to move away from each other, the movable block can squeeze the elastic band and enter the adjacent make way groove to facilitate the smooth movement of the two buffer parts; and when the movable block moves to a position opposite to the next limiting area, the elastic band in a compressed state can generate an elastic restoring force and force the movable block to re-enter the limiting area, thereby maintaining the thickness of the shock absorber.
[0022] Optionally, the elastic component also includes a plurality of memory foam pads, which are fixed to the side of the elastic band close to the limiting area and located inside the limiting area; each memory foam pad is provided with a guide surface on the side facing the adjacent memory foam pad.
[0023] By adopting the above technical solution, by setting a memory foam pad and making the memory foam pad normally located inside the limiting area, the elastic force of the memory foam pad and the elastic band jointly forces the movable block to be clamped inside the limiting area, and after the thickness adjustment of the shock absorber is completed, the shape of the memory foam pad naturally recovers after a period of rest, and the movable block can be pressed against the inner wall of the limiting area to reduce the possibility of the movable block escaping from the limiting slot and returning to the sliding area, thereby ensuring the stability of the overall thickness of the shock absorber. In addition, by setting a guide surface, when adjusting the overall thickness of the shock absorber, the movable block can easily detach from the limiting area along the guide surface, so that the overall thickness adjustment of the shock absorber can be carried out normally.
[0024] Optionally, the bottom of the foam sole and the bottom of the shock-absorbing component are both arranged in an arc shape.
[0025] By adopting the above-mentioned technical solution, by setting the bottom of the foam sole and the bottom of the shock-absorbing component to a matching arc shape, the covering and protection effect of the shock-absorbing sole on the foot can be enhanced when people wear shoes, thereby improving the wearing comfort and elastic shock-absorbing ability of the shock-absorbing sole.
[0026] In the second aspect, the present application provides a shoe that adopts the following technical solution:
[0027] A shoe comprises an upper and the above-mentioned shock-absorbing sole, wherein the shock-absorbing sole is arranged at the bottom of the upper.
[0028] By adopting the above technical solution, when people step on the ground wearing shoes made with shock-absorbing soles, the support of the shock-absorbing parts can reduce the possibility of excessive deformation of the foamed soles, thereby extending the service life of the soles while maintaining good elastic shock-absorbing capabilities of the soles.
[0029] In summary, the present application includes at least one of the following beneficial technical effects:
[0030] 1. By setting the shock-absorbing parts, the shock-absorbing parts made of TPU material have elastic shock-absorbing ability and certain anti-deformation ability. When bearing the squeezing force of people's feet on the foam sole and the reaction force from the ground, the possibility of excessive deformation of the foam sole can be reduced, so as to extend the service life of the foam sole;
[0031] 2. By filling the shock-absorbing cavity with a buffer reinforcement member, the buffer reinforcement member can play a role in assisting the support of the foam sole, thereby reducing the occurrence of insufficient buffer support capacity of the shock-absorbing member due to the opening of the shock-absorbing cavity;
[0032] 3. By setting a sliding structure to adjust the distance between the two buffer parts, the overall thickness of the shock absorber can be changed, so that the shock absorber can be suitable for shoes with different sole thicknesses. There is no need to process multiple molds to manufacture shock absorbers of different sizes, which saves the processing cost of the front-end process, and then can reduce the sales price of the shoes made of the shock-absorbing soles and improve market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 is a schematic diagram of the overall structure of Example 1;
[0034] Figure 2 is a schematic structural diagram of the shock absorbing member in Example 1;
[0035] Figure 3 is a half-section view of the shock absorbing member in Example 2, mainly showing the structure of the shock absorbing cavity and the buffer reinforcement member;
[0036] Figure 4 is a schematic structural diagram of the shock absorbing member in Example 2;
[0037] Figure 5 is a schematic structural diagram of the shock absorbing member in Example 3;
[0038] Figure 6 is a half-section view of the shock absorbing member in Example 4, mainly showing the structure of the first connecting section and the second connecting section;
[0039] Figure 7 It is a partial schematic diagram of the first connecting section and the second connecting section in Example 4, which mainly reflects the specific structure of the sliding structure.
[0040] Explanation of the accompanying drawings: 1. Foam sole; 11. Forefoot position; 12. Arch position; 13. Heel position; 2. Shock absorber; 21. Buffer part; 22. Connecting part; 23. Shock absorber chamber; 24. First connecting section; 25. Second connecting section; 251. Movable groove; 3. Buffer reinforcement; 31. Rubber sleeve; 32. Rubber ball; 4. Sliding structure; 41. Sliding groove; 411. Sliding area; 412. Limiting area; 42. Movable block; 421. Baffle; 5. Elastic component; 51. Elastic belt; 511. Make way groove; 52. Memory foam pad; 521. Guide surface. DETAILED DESCRIPTION
[0041] The following is combined with Figure 1-7 This application is described in further detail.
[0042] Example 1
[0043] The embodiment of the present application discloses a shock-absorbing sole.
[0044] Reference Figure 1 A shock-absorbing sole comprises a foam sole 1 and a shock-absorbing component 2 embedded and fixed at the bottom of the foam sole 1, wherein the foam sole 1 is made of EVA foam material and has good elastic shock-absorbing ability, and the shock-absorbing component 2 is made of TPU material injection molding, so that the shock-absorbing component 2 has elastic shock-absorbing ability and certain resistance to deformation.
[0045] Reference Figure 2 The shock absorbing member 2 includes two buffering parts 21 and a connecting part 22 disposed between the two buffering parts 21, and the connecting part 22 is integrally injection molded with the two buffering parts 21. Each buffering part 21 has a smooth arc transition with the connecting part 22, so as to improve the wrapping property of the foam sole 1 on the shock absorbing member 2; moreover, the middle part of each buffering part 21 is recessed toward the connecting part 22, and the two buffering parts 21 bear the squeezing force from people's feet and the reaction force from the ground respectively, and the possibility of excessive deformation of the foam sole 1 can be reduced through the supporting effect of the connecting part 22, so as to extend the service life of the foam sole 1.
[0046] Also refer to Figure 1 The shape of the buffering part 21 is adapted to the shape of the foaming sole 1, and the outer edge size of the buffering part 21 is smaller than the outer edge size of the foaming sole 1; in addition, the bottom of the buffering part 21 located below is arranged in an arc shape. In this embodiment, the front end position and the rear end position of the buffering part 21 located below are both curved upward in an arc shape, and the bottom of the foaming sole 1 is arranged in an arc shape adapted to the shock absorbing part 2. When the shock absorbing sole is processed, people can enhance the covering and protection effect of the shock absorbing sole on the feet when wearing shoes, thereby improving the wearing comfort and elastic shock absorbing ability of the shock absorbing sole.
[0047] When the shock-absorbing sole is processed and manufactured, the shock-absorbing part 2 is firstly injection-molded using an injection mold, and TPU material is injected into the injection mold, so that the TPU material is injection-molded inside the cavity of the injection mold to obtain a shock-absorbing part 2 with a specific shape; then, the shock-absorbing part 2 is placed inside the foaming cavity of the foaming mold, and the shape of the foaming cavity is the same as the shape of the shock-absorbing sole. Foaming material is added to the foaming cavity and the foaming material wraps the shock-absorbing part 2, and the foaming mold is heated so that the foaming material can be firmly bonded to the shock-absorbing part 2 after foaming and maturing, thereby obtaining a shock-absorbing sole with good elastic shock-absorbing ability and service life.
[0048] The implementation principle of a shock-absorbing sole in the embodiment of the present application is:
[0049] When the shock-absorbing sole of the present application is in use, the buffering part 21 located at the top can withstand the squeezing force exerted by people's feet on the foam sole 1, while the buffering part 21 located at the bottom can withstand the reaction force from the ground. The supporting effect of the connecting part 22 can reduce the possibility of excessive deformation of the foam sole 1, thereby reducing the possibility of the foam sole 1 being flattened and compacted, and can extend the service life of the foam sole 1 while maintaining good elastic shock-absorbing ability.
[0050] Example 2
[0051] The embodiment of the present application discloses a shock-absorbing sole.
[0052] Reference Figure 3 , a shock-absorbing sole disclosed in the embodiment of the present application, the remaining components are the same as those in the embodiment 1, and will not be described one by one here; the difference from the embodiment 1 is that:
[0053] A shock-absorbing chamber 23 is provided inside the connecting portion 22 of the present embodiment, and the two ends of the shock-absorbing chamber 23 respectively penetrate the adjacent buffer portions 21 on both sides, and the longitudinal cross-sectional size of the shock-absorbing chamber 23 gradually increases from the middle of the shock-absorbing chamber 23 to the two ends of the shock-absorbing chamber 23; the setting of the shock-absorbing chamber 23 is used to provide deformation clearance space for the connecting portion 22 and the foam sole 1, thereby reducing the possibility of the foam sole 1 being stepped on and compacted.
[0054] There are multiple shock-absorbing chambers 23. In the present embodiment, the specific number of the shock-absorbing chambers 23 is three, and the three shock-absorbing chambers 23 are respectively arranged at the forefoot position 11, the arch position 12 and the heel position 13 of the foam sole 1; in other embodiments, the specific number of the shock-absorbing chambers 23 may be four, five or six, as long as the shock-absorbing chambers 23 can be respectively arranged at the forefoot position 11, the arch position 12 and the heel position 13 of the foam sole 1.
[0055] Also refer to Figure 4 Each shock absorbing cavity 23 is provided with a buffer reinforcement member 3 to improve the situation that the shock absorbing member 2 has insufficient buffer support capacity due to the opening of the shock absorbing cavity 23. The buffer reinforcement member 3 includes a rubber sleeve 31 and a rubber ball 32 filled in the rubber sleeve 31. The rubber sleeve 31 and the rubber ball 32 are both made of rubber material. The shape of the rubber sleeve 31 is the same as that of the shock absorbing box, and the two side ends of the rubber sleeve 31 are glued and fixed to the two buffer parts 21 respectively.
[0056] The implementation principle of Example 2 of the present application is:
[0057] When the shock-absorbing sole is in use, when people step on the foam sole 1 with their feet and force the shock-absorbing component 2 to shrink and deform inward, the foam sole 1 can squeeze the connecting portion 22 and shrink and deform into the shock-absorbing cavity 23. At this time, the rubber sleeve 31 is forced to shrink and deform inward, and the rubber ball 32 filled in the rubber sleeve 31 can move to avoid the bending deformation position of the connecting portion 22, further reducing the possibility of the foam sole 1 being stepped on and compacted, so as to maintain a good service life of the foam sole 1.
[0058] Example 3
[0059] The embodiment of the present application discloses a shock-absorbing sole.
[0060] Reference Figure 5 , a shock-absorbing sole disclosed in the embodiment of the present application, the remaining components are the same as those in the embodiment 2, and will not be described one by one here; the difference from the embodiment 2 is that:
[0061] The specific number of the buffer reinforcement members 3 in this embodiment is set to two groups, one group of buffer reinforcement members 3 is installed in the shock absorbing cavity 23 at the forefoot position 11 of the foam sole 1, and the other group of buffer reinforcement members 3 is installed in the shock absorbing cavity 23 at the heel position 13 of the foam sole 1.
[0062] The implementation principle of Example 3 of the present application is:
[0063] By installing the buffer reinforcement 3 at the forefoot position 11 and the heel position 13 of the foam sole 1, the supporting force of the arch position 12 where the buffer reinforcement 3 is not set is weaker. When some people with flat feet wear shoes, the force acting on the arch position 12 is smaller, which can improve the comfort of people with flat feet when walking.
[0064] Example 4
[0065] The embodiment of the present application discloses a shock-absorbing sole.
[0066] Reference Figure 6 , a shock-absorbing sole disclosed in the embodiment of the present application, the remaining components are the same as those in the embodiment 1, and will not be described one by one here; the difference from the embodiment 1 is that:
[0067] The connection part 22 of this embodiment includes a first connection section 24 and a second connection section 25, which are respectively arranged on adjacent sides of two buffer parts 21, and the first connection section 24 is integrally formed with the corresponding buffer part 21, and the second connection section 25 is integrally formed with the corresponding buffer part 21. The outer edge size of the first connection section 24 is smaller than the inner edge size of the second connection section 25 and is set equal, so that the first connection section 24 can be matched and inserted into the inner edge of the second connection section 25, and a sliding structure 4 is provided between the first connection section 24 and the second connection section 25 to adjust the spacing between the two connection parts 22, thereby adjusting the overall thickness of the shock absorber 2; the number of sliding structures 4 is set in multiple groups, and all sliding structures 4 are arranged equidistantly along the outer edge of the connection part 22.
[0068] Reference Figure 7 The sliding structure 4 includes a sliding groove 41 provided on the outer side of the first connecting section 24 and a movable block 42 provided on the second connecting section 25, wherein the inner side of the second connecting section 25 is provided with a movable groove 251, which is a strip groove penetrating the inner and outer sides of the second connecting section 25, and the extension direction of the movable groove 251 is perpendicular to the extension direction of the second connecting section 25. The width of the movable block 42 is set equal to the groove width of the movable groove 251, and the movable block 42 is matched and installed in the movable groove 251 and can move freely inside the movable groove 251; two baffles 421 are provided on the outer peripheral side of the movable block 42, and the two baffles 421 are integrally formed with the movable block 42, and the two baffles 421 are respectively pressed against the inner and outer sides of the second connecting section 25, so as to reduce the possibility of the movable block 42 being separated from the movable groove 251.
[0069] The sliding groove 41 includes a sliding area 411 and a limiting area 412. The sliding area 411 is set to a long strip shape, and the extension direction of the sliding area 411 is the same as the extension direction of the first connecting section 24; there are multiple limiting areas 412, and each limiting area 412 is jointly arranged on the same side wall of the sliding area 411, and all the limiting areas 412 are equidistantly arranged along the extension direction of the sliding area 411; the width of the movable block 42 is set to be equal to the width of the limiting area 412. By changing the position of the movable block 42 in each limiting area 412, the overall thickness of the shock absorber 2 can be changed.
[0070] The inner wall of the sliding area 411 is also provided with an elastic component 5, which is used to drive the movable block 42 to automatically clamp inside the limiting area 412, so that the overall thickness of the shock absorber 2 can be maintained. The elastic component 5 includes an elastic band 51 and a memory foam pad 52, wherein the elastic band 51 is made of elastic materials such as silicone and rubber bands and has good elasticity; the two ends of the elastic band 51 are respectively fixed to the two side ends of the sliding area 411, and the elastic band 51 is filled inside the sliding area 411.
[0071] A plurality of clearance grooves 511 are provided on the side of the elastic band 51 near the limiting area 412, and all the clearance grooves 511 are arranged equidistantly along the extension direction of the elastic band 51; each clearance groove 511 is staggered with each limiting area 412, so that each clearance groove 511 is exactly at the position between two adjacent limiting areas 412. When the spacing between the two buffer parts 21 needs to be adjusted, by pulling the buffer part 21 and forcing the two buffer parts 21 to move away from each other, the movable block 42 can squeeze the elastic member and enter the adjacent clearance groove 511, so as to facilitate the smooth movement of the two buffer parts 21.
[0072] There are multiple memory foam pads 52, each memory foam pad 52 is bonded and fixed to the side of the elastic band 51 near the limiting area 412, and all memory foam pads 52 are equidistantly arranged along the extension direction of the elastic band 51; each memory foam pad 52 is located inside the limiting area 412, and each memory foam pad 52 is provided with a guide surface 521 on the side facing the adjacent memory foam pad 52. By providing the memory foam pad 52, after the overall thickness of the shock absorber 2 is adjusted and left to stand for a period of time, the memory foam pad 52 can restore its natural shape, thereby pressing the movable block 42 against the inner wall of the limiting area 412, so as to reduce the possibility of the movable block 42 escaping from the limiting slot and returning to the sliding area 411, thereby ensuring the stability of the overall thickness of the shock absorber 2.
[0073] The implementation principle of Example 4 of the present application is:
[0074] During the manufacturing process of the shock-absorbing sole, the overall thickness of the shock-absorbing component 2 can be changed by pulling the two buffer parts 21 to force the two buffer parts 21 to move closer to or away from each other, and the overall thickness of the shock-absorbing component 2 can be maintained by the internal elastic component 5; then, the shock-absorbing component 2 is placed inside the foaming cavity of the foaming mold, and foaming material is added to the foaming cavity so that the foaming material wraps the shock-absorbing component 2. After being added to the foaming mold, the foaming material can pass through the movable groove 251 and enter between the first connecting section 24 and the second connecting section 25, thereby improving the connection stability between the shock-absorbing component 2 and the foaming sole 1 after the foaming material is foamed and matured.
[0075] By adjusting the overall thickness of the shock-absorbing component 2, it can adapt to various types of shoes with different sole thicknesses. There is no need to process multiple molds to manufacture shock-absorbing plates of different sizes, which can save the processing cost of the front-end process, thereby reducing the sales price of the shoes made of the shock-absorbing soles and improving market competitiveness.
[0076] Example 5
[0077] The embodiment of the present application also discloses a pair of shoes.
[0078] A shoe comprises an upper and the shock-absorbing sole of embodiment 1, wherein the shock-absorbing sole is glued and fixed to the bottom of the upper, which can extend the service life of the shock-absorbing sole while making the shoe have good elastic shock-absorbing ability.
[0079] Example 6
[0080] The embodiment of the present application also discloses a pair of shoes.
[0081] A shoe comprises an upper and the shock-absorbing sole of Example 2, wherein the shock-absorbing sole is glued and fixed to the bottom of the upper, which can further reduce the possibility of the shock-absorbing sole being stepped on and compacted, thereby further extending the service life of the shock-absorbing sole.
[0082] Example 7
[0083] The embodiment of the present application also discloses a pair of shoes.
[0084] A shoe comprises an upper and the shock-absorbing sole of Example 3, wherein the shock-absorbing sole is glued and fixed to the bottom of the upper, and can be worn by people with flat feet, thereby improving the walking comfort of such people.
[0085] Example 8
[0086] The embodiment of the present application also discloses a pair of shoes.
[0087] A shoe comprises an upper and the shock-absorbing sole of Example 4, wherein the shock-absorbing sole is glued and fixed to the bottom of the upper, which has the advantage of saving the processing cost of the front-end process, is conducive to reducing the sales price of the shoe, and improves the market competitiveness.
[0088] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A shock-absorbing sole, characterized in that: The invention comprises a foam sole (1) and a shock absorbing member (2) embedded and fixed at the bottom of the foam sole (1); wherein the shock absorbing member (2) is made of TPU material, the shock absorbing member (2) comprises two buffering parts (21) and a connecting part (22) arranged between the two buffering parts (21), and an arc-shaped smooth transition is formed between the buffering part (21) and the connecting part (22); the shape of the buffering part (21) is adapted to the shape of the foam sole (1), and the middle area of the buffering part (21) is close to the connecting part (22). ) direction; the connecting portion (22) comprises a first connecting section (24) and a second connecting section (25), the first connecting section (24) and the second connecting section (25) being respectively arranged on adjacent side surfaces of the two buffering portions (21); the outer edge size of the first connecting section (24) is adapted to the inner edge size of the second connecting section (25), the first connecting section (24) is matched and inserted into the inner edge of the second connecting section (25), and a sliding structure (4) is provided between the first connecting section (24) and the second connecting section (25) so as to The distance between the two connecting parts (22) is adjusted; a shock absorbing cavity (23) is provided inside the connecting part (22), and the two ends of the shock absorbing cavity (23) respectively penetrate the buffer parts (21) adjacent to the two sides; the longitudinal cross-sectional size of the shock absorbing cavity (23) gradually increases from the middle of the shock absorbing cavity (23) to the two ends of the shock absorbing cavity (23); a buffer reinforcement member (3) is filled inside the shock absorbing cavity (23), and the buffer reinforcement member (3) includes a rubber sleeve (31) and a rubber ball (32) filled inside the rubber sleeve (31); The shape of the rubber sleeve (31) matches the shape of the shock absorbing cavity (23), and the two side ends of the rubber sleeve (31) are respectively glued and fixed to the two buffer parts (21); a plurality of the shock absorbing cavities (23) are provided, and each of the shock absorbing cavities (23) is respectively arranged at the forefoot position (11), the arch position (12) and the heel position (13) of the foam sole (1); a plurality of groups of the buffer reinforcement members (3) are provided, and all of the buffer reinforcement members (3) are respectively arranged in the shock absorbing cavities (23) located at the forefoot position (11) and the heel position (13).
2. The shock-absorbing sole according to claim 1, characterized in that: The sliding structure (4) comprises a sliding groove (41) provided on the outer side surface of the first connecting section (24) and a movable block (42) provided on the second connecting section (25); wherein the inner side surface of the second connecting section (25) is provided with a movable groove (251), and the extension direction of the movable groove (251) is perpendicular to the extension direction of the second connecting section (25); the movable block (42) is matched and installed in the movable groove (251), and the movable block (42) is freely slidable in the movable groove (251); The sliding groove (41) comprises a sliding area (411) and a plurality of limiting areas (412); the extension direction of the sliding area (411) is the same as the extension direction of the first connecting section (24); the limiting areas (412) are arranged on the same side wall of the sliding area (411), and all the limiting areas (412) are arranged at intervals along the extension direction of the sliding area (411); an elastic component (5) is also arranged inside the sliding area (411), and the elastic component (5) is used to drive the movable block (42) to move and be clamped inside one of the limiting areas (412).
3. The shock-absorbing sole according to claim 2, characterized in that: The elastic component (5) comprises an elastic band (51), the two ends of the elastic band (51) being respectively fixed to the two side ends of the sliding area (411); the width of the elastic band (51) is adapted to the width of the sliding area (411); a plurality of clearance grooves (511) are provided on the side of the elastic band (51) close to the limiting area (412), and each of the clearance grooves (511) is respectively arranged to be offset from each of the limiting areas (412).
4. The shock-absorbing sole according to claim 3, characterized in that: The elastic component (5) further comprises a plurality of memory foam pads (52), wherein the memory foam pads (52) are fixed to the side of the elastic band (51) close to the limiting area (412) and are located inside the limiting area (412); each memory foam pad (52) is provided with a guide surface (521) on a side facing the adjacent memory foam pad (52).
5. The shock-absorbing sole according to claim 1, characterized in that: The bottom of the foam sole (1) and the bottom of the shock-absorbing component (2) are both arranged in an arc shape.
6. A shoe, characterized in that: The shoe comprises an upper and a shock-absorbing sole as claimed in any one of claims 1 to 5, wherein the shock-absorbing sole is arranged at the bottom of the upper.
Citation Information
Patent Citations
High -efficient parcel elasticity shoes
CN205658452U
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