Polyurethane sole of sports shoe

Abstract

The utility model discloses a polyurethane sole for sports shoes, which relates to the technical field of soles and comprises a sole main body and a heel additional body, the lower side of the middle of the sole main body is integrally connected with the front end of the heel additional body, and a gap is reserved between the lower side of the rear half part of the sole main body and the heel additional body. A plurality of buffering supporting strips are longitudinally arranged in the gap at equal intervals, the lower side of the rear end of the shoe sole body is connected with the upper side of the rear end of the shoe heel additional body through an arc supporting plate, the shoe sole body and the shoe heel additional body are formed by foaming polyurethane materials, and the rear ends of the shoe sole body and the shoe heel additional body are connected through the arc supporting plate. And a gap is reserved between the rear half part of the sole main body and the heel additional body. According to the polyurethane sole of the sports shoes, the better buffering part is arranged at the heel of the sole, the buffering requirement of a sporter for the heel can be met, the anti-skid effect is good, the polyurethane sole can be better and more stably bonded with the front end and the rear end of the upper, and the firmness degree of the manufactured sports shoes is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soles, in particular to a polyurethane sole for sports shoes. Background Art

[0002] At present, sports shoes are designed and manufactured based on the characteristics of people participating in sports or traveling. The soles of sports shoes are different from ordinary leather shoes and rubber shoes. They are generally soft and elastic, and can provide a certain cushioning effect. The cushioning effect of the front and rear ends of the existing sports shoe soles is the same. There is no special design for cushioning at the heel, while athletes have a greater demand for cushioning at the heel than other parts of the shoe. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a polyurethane sole for sports shoes. A better cushioning component is set at the heel of the sole, which can meet the athlete's cushioning needs at the heel, has a good anti-slip effect, and can be better and more stably bonded to the front and rear ends of the shoe upper, thereby improving the firmness of the manufactured sports shoes and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a polyurethane sole for sports shoes, comprising a sole main body and a heel attachment, wherein the lower side of the middle portion of the sole main body is integrally formed and connected to the front end of the heel attachment, a gap is left between the lower side of the rear half of the sole main body and the heel attachment, a plurality of buffer supports are arranged at equal distances longitudinally in the gap, and the lower side of the rear end of the sole main body is connected to the upper side of the rear end of the heel attachment via a circular arc support plate.

[0005] The sole body and the heel attachment are made of polyurethane foam material. The arc support plate connects the rear ends of the sole body and the heel attachment, which is conducive to maintaining a gap between the rear half of the sole body and the heel attachment. The gap can play a certain buffering role, allowing the rear half of the sole body to move downward. The buffer support bar fills the gap, and as the buffer support bar deforms, it can also play a buffering role on the heel.

[0006] Furthermore, the arc support plate further comprises a plurality of clamping posts, each equidistantly connected to the upper and lower sides of the arc support plate. A clamping hole corresponding to the upper clamping post of the arc support plate is formed on the lower side of the rear end of the sole body, and a clamping hole corresponding to the lower clamping post of the arc support plate is formed on the upper side of the rear end of the heel attachment. The provision of the clamping posts allows the arc support plate to be more stably mounted between the rear end of the sole body and the rear end of the heel attachment. To enhance the stability of the connection, the upper and lower sides of the arc support plate are respectively bonded to the sole body and the heel attachment using glue.

[0007] Furthermore, a buffer cavity is included. Each buffer branch is provided with a buffer cavity. The setting of the buffer cavity is conducive to the deformation of the buffer branch, thereby playing a buffering role.

[0008] Furthermore, the shoe further includes a limiting post. The upper and lower ends of the buffer support bar are integrally formed and connected to the limiting post. A first limiting hole is formed on the lower side of the sole body at a position corresponding to the limiting post. The first limiting hole is engaged with the limiting post at the upper end of the buffer support bar. A second limiting hole is formed on the upper side of the heel attachment body at a position corresponding to the limiting post. The second limiting hole is engaged with the limiting post at the lower end of the buffer support bar. The provision of the limiting post allows the buffer support bar to be more stably installed in the gap, preventing displacement when the buffer support bar deforms to play a buffering role.

[0009] Furthermore, the shoe sole also includes circular grooves and three-pronged anti-slip projections. The underside of the front half of the sole body is provided with circular grooves in a rectangular array, and each circular groove is provided with a three-pronged anti-slip projection. The combination of the circular grooves and the three-pronged anti-slip projections can provide better grip on the bottom of the sole body, facilitating the athlete to exert force through the sole of the foot.

[0010] Furthermore, it also includes anti-slip ridges. The lower side of the heel attachment is provided with multiple anti-slip ridges at equal distances in the longitudinal direction. The anti-slip ridges provide better grip for the lower side of the heel attachment, which is beneficial for anti-slip. The anti-slip ridges, circular grooves and three-pronged anti-slip protrusions provide different friction forces for different areas of the lower side of the sole. The anti-slip ridges mainly provide anti-slip effect for the sole when walking, and the circular grooves and three-pronged anti-slip protrusions mainly provide friction when the athlete's feet exert force and change direction.

[0011] Furthermore, it also includes a heel guard and a strip adhesive groove. The upper edge of the rear end of the sole main body is integrally formed with an arc-shaped heel guard. The top two ends of the heel guard are respectively provided with chamfers, and a plurality of vertical strip adhesive grooves are equidistantly arranged on the inner side of the heel guard. The heel guard is bonded to the rear end of the upper by glue. The strip adhesive groove is conducive to increasing the bonding area, thereby improving the bonding strength between the heel guard and the rear end of the upper, and avoiding debonding between the sole main body and the rear end of the upper.

[0012] Furthermore, the shoe further comprises a toe guard and a second strip-shaped adhesive groove. The toe guard is integrally formed and connected to the upper front end of the sole body, and a plurality of transverse second strip-shaped adhesive grooves are formed on the inner side of the toe guard. The toe guard is bonded to the front end of the upper with glue. The second strip-shaped adhesive grooves can increase the bonding area between the toe guard and the front end of the upper, thereby improving the bonding strength between the toe guard and the front end of the upper and preventing the sole body and the front end of the upper from coming apart.

[0013] Furthermore, the shoe sole body further comprises a plurality of bosses, wherein the middle portion of the upper side of the shoe sole body is longitudinally and equidistantly provided with the bosses, and the bosses can cooperate with the pad material installed on the upper side of the shoe sole body to make the connection between the pad material and the shoe sole body more stable.

[0014] Furthermore, it also includes a convex plate and a groove. A convex plate is provided on the upper side of the sole body near the edge, and a groove is provided on the convex plate. More glue can be attached to the convex plate through the groove, thereby improving the stability of the bonding between the pad material and the upper side of the sole body.

[0015] Compared with the prior art, the beneficial effects of the polyurethane sole of sports shoes are:

[0016] Providing a better cushioning component at the heel of the sole can meet the athlete's cushioning needs at the heel, has a good anti-slip effect, and can better and more stably bond with the front and rear ends of the upper, thereby improving the reliability of the manufactured sports shoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a side view structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 5 For this utility model Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0022] In the figure: 1 sole body, 2 heel attachment body, 3 arc support plate, 4 clamping column, 5 buffer support strip, 6 buffer cavity, 7 limit column, 8 anti-skid ridge, 9 heel guard, 10 strip adhesive groove 1, 11 convex column, 12 convex plate, 13 groove, 14 toe guard, 15 strip adhesive groove 2, 16 circular groove, 17 three-pronged anti-skid protrusion. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] For example 1, please refer to Figures 1 to 5The utility model provides a technical solution: a polyurethane sole for sports shoes, comprising a sole body 1 and a heel attachment 2, the lower side of the middle portion of the sole body 1 being integrally formed and connected to the front end of the heel attachment 2, a gap being left between the lower side of the rear half of the sole body 1 and the heel attachment 2, a plurality of buffering supports 5 being arranged longitudinally and equidistantly in the gap, the specific number of the buffering supports 5 can be four, and the buffering supports 5 are distributed transversely, and the lower side of the rear end of the sole body 1 is connected to the upper side of the rear end of the heel attachment 2 through an arc support plate 3.

[0025] The shoe sole body 1 further includes a plurality of clamping posts 4, each of which is integrally formed and connected at equal distances to the upper and lower sides of the arc support plate 3. Five clamping posts 4 are provided on the upper and lower sides of the arc support plate 3, respectively. A clamping hole corresponding to the clamping post 4 on the upper side of the arc support plate 3 is provided on the lower side of the rear end of the sole body 1, and a clamping hole corresponding to the clamping post 4 on the lower side of the rear end of the heel attachment 2 is provided on the upper side of the rear end of the arc support plate 3. The provision of the clamping posts 4 enables the arc support plate 3 to be more stably installed between the rear end of the sole body 1 and the rear end of the heel attachment 2. To enhance the stability of the connection, the upper and lower sides of the arc support plate 3 are bonded to the sole body 1 and the heel attachment 2, respectively, with glue.

[0026] It also includes a buffer cavity 6. Each buffer branch 5 is provided with a buffer cavity 6. The provision of the buffer cavity 6 is conducive to the deformation of the buffer branch 5, thereby playing a buffering role.

[0027] The shoe also includes a limiting post 7. The upper and lower ends of the buffer support bar 5 are integrally formed and connected to the limiting post 7. The lower side of the sole body 1 has a limiting hole 1 corresponding to the position of the limiting post 7. The limiting hole 1 cooperates with the limiting post 7 at the upper end of the buffer support bar 5. The upper side of the heel attachment body 2 has a limiting hole 2 corresponding to the position of the limiting post 7. The limiting hole 2 cooperates with the limiting post 7 at the lower end of the buffer support bar 5. The provision of the limiting post 7 allows the buffer support bar 5 to be more stably installed in the gap, preventing it from shifting when the buffer support bar 5 deforms to play a buffering role.

[0028] The shoe sole body 1 also includes circular grooves 16 and three-pronged anti-slip projections 17. The lower side of the front half of the sole body 1 is provided with circular grooves 16 in a rectangular array, and each circular groove 16 is provided with a three-pronged anti-slip projection 17. The cooperation between the circular grooves 16 and the three-pronged anti-slip projections 17 can provide the bottom of the sole body 1 with better grip, which is beneficial for athletes to exert force through the soles of their feet.

[0029] It also includes anti-slip ridges 8. A plurality of anti-slip ridges 8 are arranged at equal distances in the longitudinal direction on the lower side of the heel attachment 2. The anti-slip ridges 8 provide better grip for the lower side of the heel attachment 2, which is beneficial for anti-slip. The anti-slip ridges 8, circular grooves 16 and three-pronged anti-slip protrusions 17 provide different friction forces for different areas on the lower side of the sole. The anti-slip ridges 8 mainly provide anti-slip effect for the sole when walking, and the circular grooves 16 and three-pronged anti-slip protrusions 17 mainly provide friction when the athlete's feet exert force and change direction.

[0030] When in use, the sole body 1 and the heel attachment 2 are foamed with polyurethane material, and the arc support plate 3 connects the rear ends of the sole body 1 and the heel attachment 2, which is conducive to leaving a gap between the rear half of the sole body 1 and the heel attachment 2. The gap can play a certain buffering role, allowing the rear half of the sole body 1 to move downward, and the buffer support bar 5 fills the gap. As the buffer support bar 5 deforms, it can also play a buffering role on the heel.

[0031] For example 2, please refer to Figures 1 to 5 The present invention provides a technical solution: a polyurethane sole for sports shoes. The structure of this embodiment is roughly the same as that of the first embodiment, except that:

[0032] It also includes a heel guard 9 and a strip adhesive groove 10. The upper edge of the rear end of the sole main body 1 is integrally formed with an arc-shaped heel guard 9. The top two ends of the heel guard 9 are respectively provided with chamfers, and a plurality of vertical strip adhesive grooves 10 are equidistantly arranged on the inner side of the heel guard 9. The specific number of the strip adhesive grooves 10 can be selected according to needs. The heel guard 9 is bonded to the rear end of the upper by glue. The strip adhesive groove 10 is conducive to increasing the bonding area, thereby improving the bonding strength between the heel guard 9 and the rear end of the upper, and avoiding debonding between the sole main body 1 and the rear end of the upper.

[0033] The shoe sole body 1 further includes a toe guard 14 and a second strip adhesive groove 15. The toe guard 14 is integrally formed and connected to the upper front end of the sole body 1. The inner side of the toe guard 14 is provided with multiple transverse second strip adhesive grooves 15, with at least four second strip adhesive grooves 15 provided. The toe guard 14 is bonded to the front end of the upper with glue. The second strip adhesive grooves 15 can increase the bonding area between the toe guard 14 and the front end of the upper, thereby improving the bonding strength between the toe guard 14 and the front end of the upper and preventing the sole body 1 from debonding from the front end of the upper.

[0034] For example three, please refer to Figures 1 to 5 The present invention provides a technical solution: a polyurethane sole for sports shoes. The structure of this embodiment is roughly the same as that of the second embodiment, except that:

[0035] The sole body 1 further includes a plurality of protrusions 11, which are equidistantly arranged longitudinally on the middle portion of the upper side of the sole body 1. The specific number of protrusions 11 is selected as needed. In this embodiment, nine protrusions 11 are used. The protrusions 11 can cooperate with the pad material installed on the upper side of the sole body 1 to ensure a more stable connection between the pad material and the sole body 1.

[0036] It also includes a convex plate 12 and a groove 13. A convex plate 12 is provided on the upper side of the sole body 1 near the edge, and a groove 13 is provided on the convex plate 12. The convex plate 12 can adhere to more glue through the groove 13, thereby improving the stability of the bonding between the pad material and the upper side of the sole body 1.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane sole for sports shoes, comprising a sole body (1) and a heel attachment (2), characterized in that: The lower middle side of the sole body (1) is integrally formed and connected to the front end of the heel attachment body (2); a gap is left between the lower rear half of the sole body (1) and the heel attachment body (2); a plurality of buffering supports (5) are arranged longitudinally and equidistantly in the gap; and the lower rear end of the sole body (1) is connected to the upper rear end of the heel attachment body (2) via an arc support plate (3).

2. The polyurethane sole for sports shoes according to claim 1, characterized in that: The shoe sole body (1) further comprises a clamping column (4), wherein the upper and lower sides of the arc support plate (3) are integrally formed with a plurality of clamping columns (4) at equal distances from each other, a clamping hole corresponding to the clamping column (4) on the upper side of the arc support plate (3) is provided on the lower side of the rear end of the shoe sole body (1), and a clamping hole corresponding to the clamping column (4) on the lower side of the arc support plate (3) is provided on the upper side of the rear end of the shoe heel attachment body (2).

3. The polyurethane sole for sports shoes according to claim 1, characterized in that: It also includes a buffer cavity (6), and each buffer branch (5) is provided with a buffer cavity (6).

4. The polyurethane sole for sports shoes according to claim 1, characterized in that: The shoe further comprises a limiting column (7), wherein the upper and lower ends of the buffer support bar (5) are integrally formed and connected to the limiting column (7), a limiting hole 1 is provided on the lower side of the sole body (1) corresponding to the position of the limiting column (7), and the limiting hole 1 is matched and connected with the limiting column (7) at the upper end of the buffer support bar (5), and a limiting hole 2 is provided on the upper side of the heel attachment body (2) corresponding to the position of the limiting column (7), and the limiting hole 2 is matched and connected with the limiting column (7) at the lower end of the buffer support bar (5).

5. The polyurethane sole for sports shoes according to claim 1, characterized in that: It also includes circular grooves (16) and three-pronged anti-slip protrusions (17). The lower side of the front half of the sole body (1) is provided with circular grooves (16) in a rectangular array, and each circular groove (16) is provided with a three-pronged anti-slip protrusion (17).

6. The polyurethane sole for sports shoes according to claim 1, characterized in that: It also includes anti-skid ridges (8), and a plurality of anti-skid ridges (8) are provided at equal distances in the longitudinal direction on the lower side of the heel attachment body (2).

7. The polyurethane sole for sports shoes according to claim 1, characterized in that: The shoe sole body (1) further comprises a heel guard (9) and a strip-shaped adhesive groove (10), wherein the upper edge of the rear end of the sole body (1) is integrally formed with an arc-shaped heel guard (9), the top ends of the heel guard (9) are respectively provided with chamfers, and a plurality of vertical strip-shaped adhesive grooves (10) are provided at equal distances on the inner side of the heel guard (9).

8. The polyurethane sole for sports shoes according to claim 1, characterized in that: It also includes a toe guard plate (14) and a second strip-shaped adhesive groove (15). The upper front end of the sole body (1) is integrally connected to the toe guard plate (14), and the inner side of the toe guard plate (14) is provided with a plurality of transverse second strip-shaped adhesive grooves (15).

9. The polyurethane sole for sports shoes according to claim 1, characterized in that: It also includes convex columns (11), and a plurality of convex columns (11) are longitudinally and equidistantly arranged on the middle portion of the upper side of the sole body (1).

10. The polyurethane sole for sports shoes according to claim 1, characterized in that: It also includes a convex disc (12) and a groove (13). The convex disc (12) is provided on the upper side of the sole body (1) near the edge, and the groove (13) is provided on the convex disc (12).

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