A long jump shoe

Abstract

The present invention relates to a long jump shoe, comprising a sole body, the sole body comprising an outsole and a midsole composited on the outsole, the midsole corresponding to the forefoot portion is provided with a mounting groove, the mounting groove extends from the upper surface of the midsole to the lower surface, the mounting groove extends from the inner side of the midsole to the outer side, an elastic plate is installed in the mounting groove, the front end of the elastic plate is arranged corresponding to the front end of the metatarsal bone of the foot, the rear end of the elastic plate extends to the rear end of the forefoot portion, a cover plate is provided on the elastic plate, the cover plate is embedded in the mounting groove, the lower surface of the cover plate is pressed against the upper surface of the elastic plate, the upper surface of the cover plate is flush with the upper surface of the midsole, the hardness of the elastic plate is greater than the hardness of the midsole, and the hardness of the elastic plate is greater than the hardness of the cover plate. The elastic plate of the present invention can provide better rebound force, making the ground push more powerful and improving the long jump performance.

Description

Technical Field

[0001] The invention relates to a long jump shoe, belonging to the technical field of shoes. Background Art

[0002] In the long jump, track and field shoes or jogging shoes with rubber soles were used in the past. Some shoes have steel spikes installed on the soles to improve grip and thrust. Considering the safety of wearing, some organizers do not allow the wearing of steel spike shoes. For example, in middle school physical education exams, steel spike shoes are generally not allowed.

[0003] Some shoes designed for long jump have appeared on the market. For example, in the Chinese utility model patent with authorization announcement number CN207084276U and titled "A long jump shoe sole", a long jump shoe sole is disclosed, including a sole plate and a midsole. The upper part of the sole plate is provided with a midsole, and the two are bonded to each other; the sole plate is divided into a sole area, a center area, a heel area, and an edge area, and the sole plate adopts an inlay design, and each is separated by an annular groove; the sole area and the heel area are respectively provided with a plurality of anti-slide blocks I, and the anti-slide blocks I are arranged in a row, the sole area is divided into two by a separation groove, the center area is provided with a plurality of anti-slide blocks II, and the edge area is provided with a plurality of anti-slide blocks II. There are several triangular bosses; the anti-sliding plate I includes a polygonal boss and a circular boss, the upper part of the circular boss is provided with a polygonal boss, the polygonal boss includes a forward arc segment, a reverse arc segment, and an oblique cone surface, the forward arc segment and the reverse arc segment are connected end to end, and the sides of the forward arc segment and the reverse arc segment are provided with an oblique cone surface; the anti-sliding plate II is a polygonal boss, the polygonal boss includes a forward arc segment, a reverse arc segment, and an oblique cone surface, the forward arc segment and the reverse arc segment are connected end to end, and the sides of the forward arc segment and the reverse arc segment are provided with an oblique cone surface; the head and tail of the triangular boss in the edge area are respectively provided with water grooves.

[0004] For another example, in the Chinese utility model patent with authorization announcement number CN203457869U and titled “A Special Shoe for Long Jump”, a long jump shoe is disclosed, comprising a shoe body, wherein the front bottom surface of the shoe body is arc-shaped, and the rear bottom surface of the shoe body is streamlined; the bottom surface of the shoe body is provided with an anti-skid rubber sole integral therewith; the anti-skid rubber sole is densely covered with a plurality of anti-skid protrusions; the anti-skid protrusions are in the shape of an isosceles triangle, the height of the protrusion of the bottom edge is greater than the height of the protrusion of the top corner, and a slope is formed between the bottom edge and the top corner.

[0005] The long jump shoes in the above patents mainly play the role of anti-slip and boosting by designing the anti-slip block on the sole. Since the anti-slip block on the sole is in direct contact with the ground, it will be greatly worn over time, especially the anti-slip block with sharp edges, which makes it difficult for the long jump shoes to perform well. In addition, the anti-slip block is generally made of rubber, which is relatively soft, and the boosting and rebounding effects need to be further improved.

[0006] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which led to the emergence of this case. Summary of the invention

[0007] The invention aims to provide a long jump shoe which has good rebound performance, can assist in improving long jump performance and is comfortable to wear.

[0008] In order to achieve the above object, the present invention adopts such technical solution:

[0009] A long jump shoe comprises a sole body, the sole body comprises an outsole and a midsole composited on the outsole, the position of the sole body corresponding to the front part of the sole is the forefoot part, the position corresponding to the heel is the heel part, the position corresponding to the arch of the foot is the arch part, the side corresponding to the inner side of the instep is the inner side, and the side corresponding to the outer side of the instep is the outer side, the midsole is provided with a mounting groove corresponding to the forefoot part, the mounting groove extends from the upper surface of the midsole to the lower surface, and the mounting groove extends from the inner side of the midsole to the outer side, an elastic plate is installed in the mounting groove, the front end of the elastic plate is arranged corresponding to the front end of the metatarsal bone of the foot, the rear end of the elastic plate extends to the rear end of the forefoot part, a cover plate is provided on the elastic plate, the cover plate is embedded in the mounting groove, the lower surface of the cover plate is pressed against the upper surface of the elastic plate, the upper surface of the cover plate is flush with the upper surface of the midsole, the hardness of the elastic plate is greater than the hardness of the midsole, and the hardness of the elastic plate is greater than the hardness of the cover plate.

[0010] As a preferred embodiment of the present invention, the front end of the elastic plate corresponds to the front end of the first metatarsal, the front end of the second metatarsal, the front end of the third metatarsal, the front end of the fourth metatarsal and the front end of the fifth metatarsal of the foot and extends in the medial and lateral direction of the sole body.

[0011] As a preferred embodiment of the present invention, a first arched protrusion and a second arched protrusion are formed on the upper surface of the elastic plate, a first strip groove is formed on the lower surface of the elastic plate corresponding to the first arched protrusion, and a second strip groove is formed on the lower surface of the elastic plate corresponding to the second arched protrusion. Both the first arched protrusion and the second arched protrusion extend from the front end to the rear end of the elastic plate. The first arched protrusion and the second arched protrusion divide the elastic plate into a first area, a second area and a third area arranged along the medial and lateral directions. The first area corresponds to the first metatarsal, the second area corresponds to the second metatarsal and the third metatarsal, and the third area corresponds to the fourth metatarsal and the fifth metatarsal.

[0012] As a preferred embodiment of the present invention, a first receiving groove is provided on the cover plate corresponding to the first arched protrusion, and a second receiving groove is provided on the cover plate corresponding to the second arched protrusion. The mounting groove penetrates to the inner end surface of the midsole and forms a notch on the midsole, and the elastic plate forms an extended support portion extending into the notch corresponding to the notch.

[0013] As a preferred embodiment of the present invention, the elastic plate is a carbon fiber plate, a nylon plate or a TPU plate, and the thickness of the elastic plate is between 1 mm and 3 mm.

[0014] As a preferred embodiment of the present invention, the Shore D hardness value of the elastic plate is 65 to 75, the Shore C hardness value of the midsole is 45 to 55, the Shore C hardness value of the cover plate is 45 to 55, and the Shore A hardness value of the outsole is 55 to 64.

[0015] As a preferred embodiment of the present invention, the midsole and the cover plate are made of the same material, the midsole is made of EVA material or ETPU material, and the outsole is made of rubber material.

[0016] As a preferred embodiment of the present invention, the position of the lower surface of the sole body corresponding to the front end of the metatarsal bone is the starting point P, and the starting point is 8-15 mm forward as the N point. A first arc segment is formed from the P point to the N point, and a second arc segment is formed from the N point to the front end of the sole body. The curvature of the first arc segment is smaller than that of the second arc segment. The present invention increases the curvature at the N point. When the foot is bent, the second arc segment provides a more stable support platform, making better preparations for pushing and stretching, and helping athletes to push and stretch better.

[0017] As a preferred embodiment of the present invention, the height difference from the point P to the end of the forefoot portion is 33-40 mm.

[0018] As a preferred embodiment of the present invention, the rear end of the heel portion of the sole body is provided with a downwardly extending inclined surface, and the inclined surface extends obliquely downward from the middle of the rear end portion of the heel portion to the lower surface of the heel portion.

[0019] After adopting the technical solution of the present invention, by arranging an elastic plate at the forefoot, during long jump, the metatarsal position of the foot is used as the force point for pushing off the ground, and the elastic plate bends at this position along with the sole body. During the process of the sole body leaving the ground, the elastic plate can provide better rebound force, making the pushing off the ground more powerful, thereby improving the long jump performance. The elastic plate is sealed by a cover plate, and the hardness of the cover plate and the midsole is relatively small, so the foot feels more comfortable, thereby improving the wearing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention.

[0021] Figure 2 It is a top view of the present invention.

[0022] Figure 3 It is a side view of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the midsole in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the elastic plate in the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the cover sheet in the present invention.

[0026] Figure 7 It is a schematic structural diagram of the outsole in the present invention.

[0027] In the figure:

[0028] Midsole 10 Mounting slot 11

[0029] Notch 12 First positioning protrusion 13

[0030] Second positioning protrusion 14 Cover plate 20

[0031] First storage groove 21 Second storage groove 22

[0032] Elastic plate 30 First arched protrusion 31

[0033] Second arched protrusion 32 First strip groove 33

[0034] Second strip groove 34 First area 35

[0035] Second area 36 Third area 37

[0036] Extended support portion 38 Outsole 40

[0037] U-shaped support piece 50 front palm portion 101

[0038] Arch 102 Heel 103

[0039] Inside 104 Outside 105

[0040] Inclined surface 106 First arc segment 107

[0041] The second arc segment 108 DETAILED DESCRIPTION

[0042] In order to further explain the technical solution of the present invention, it is described in detail below in conjunction with embodiments.

[0043] Reference Figures 1 to 7A long jump shoe comprises a sole body, the sole body comprises an outsole 40 and a midsole 10 composited on the outsole 40, and the outsole 40 is fixed to the lower surface of the midsole 10 by gluing. The position of the sole body corresponding to the front of the sole is the forefoot portion 101, the position corresponding to the heel is the heel portion 103, the position corresponding to the arch of the foot is the arch portion 102, the side corresponding to the inner side of the instep is the inner side 104, and the side corresponding to the outer side of the instep is the outer side 105. The midsole 10 is provided with a mounting groove 11 corresponding to the forefoot portion 101, and the mounting groove 11 extends from the upper surface of the midsole 10 to the lower surface, and the depth thereof is about one-half to two-thirds of the thickness of the midsole 10. The mounting groove 11 extends from the inner side 104 of the midsole 10 to the outer side 105, and extends to the end surface close to the outer side 105. An elastic plate 30 is installed in the mounting groove 11, and the front end of the elastic plate 30 is arranged corresponding to the front end of the metatarsal bone of the foot, and the rear end of the elastic plate 30 extends to the rear end of the forefoot 101, specifically to a position close to the arch 102. A cover sheet 20 is provided on the elastic plate 30, and the cover sheet 20 is embedded in the mounting groove 11, and the lower surface of the cover sheet 20 is pressed against the upper surface of the elastic plate 30, and the upper surface of the cover sheet 20 is flush with the upper surface of the midsole 10. In the present invention, the cover sheet 20 can be further pasted in the mounting groove 11 by an adhesive, so as to restrict the elastic plate 30 in the mounting groove 11. In the present invention, the hardness of the elastic plate 30 is greater than the hardness of the midsole 10, and the hardness of the elastic plate 30 is greater than the hardness of the cover sheet 20. The cover plate 20 and the midsole 10 have lower hardness and are more comfortable to the touch, and the elastic plate 30 has higher hardness and can provide stronger rebound force when bent, thereby assisting athletes to more effectively push off the ground and improve long jump results.

[0044] As a preferred embodiment of the present invention, the front end portion of the elastic plate 30 corresponds to the front end of the first metatarsal, the front end of the second metatarsal, the front end of the third metatarsal, the front end of the fourth metatarsal and the front end of the fifth metatarsal of the foot, and extends in the direction of the inner side 104 and the outer side 105 of the sole body. Specifically, from the inner side 104 to the outer side 105, the front end of the elastic plate 30 forms a curved surface according to the position of the front end of the corresponding metatarsal.

[0045] As a preferred embodiment of the present invention, the upper surface of the elastic plate 30 forms a first arched protrusion 31 and a second arched protrusion 32, the lower surface of the elastic plate 30 forms a first strip groove 33 corresponding to the first arched protrusion 31, and the lower surface of the elastic plate 30 forms a second strip groove 34 corresponding to the second arched protrusion 32. The first arched protrusion 31 and the second arched protrusion 32 both extend from the front end to the rear end of the elastic plate 30. The first arched protrusion 31 and the second arched protrusion 32 divide the elastic plate 30 into a first area 35, a second area 36 and a third area 37 arranged along the inner side 104 and the outer side 105. The first area 35 is set corresponding to the first metatarsal, the second area 36 is set corresponding to the second metatarsal and the third metatarsal, and the third area 37 is set corresponding to the fourth metatarsal and the fifth metatarsal. With this structure, when the elastic plate 30 is under pressure, the first arched protrusion 31 and the second arched protrusion 32 are displaced toward the first strip groove 33 and the second strip groove 34 respectively, so that the elastic plate 30 also has a certain deformation in the direction of the inner side 104 and the outer side 105. When rebounding, it can drive the inner side 104 and the outer side 105 of the sole body to shrink to the position between the inner side 104 and the outer side 105, so that the sole body fits the foot better, assisting the foot to tighten and gather strength, and better exert force. In addition, the first arched protrusion 31 and the second arched protrusion 32 extend in the front-to-back direction, playing a role similar to a reinforcing rib, and the strength of the elastic plate 30 is better. After bending, the rebound force can be increased, so that the athlete can push off the ground more powerfully.

[0046] As a preferred embodiment of the present invention, the cover sheet 20 is provided with a first receiving groove 21 corresponding to the first arched protrusion 31, and the cover sheet 20 is provided with a second receiving groove 22 corresponding to the second arched protrusion 32. The installation groove 11 penetrates to the end surface of the inner side 104 of the midsole 10 and forms a notch 12 on the midsole 10. The elastic plate 30 forms an extended support portion 38 extending into the notch 12 corresponding to the notch 12. Preferably, the midsole 10 is provided with a first positioning protrusion 13 and a second positioning protrusion 14 at the position of the installation groove 11 corresponding to the first strip groove 33 and the second strip groove 34. The first positioning protrusion 13 and the second positioning protrusion 14 are respectively embedded in the first strip groove 33 and the second strip groove 34. Through the arrangement of the first positioning protrusion 13, the second positioning protrusion 14, the first receiving groove 21 and the second receiving groove 22, the elastic plate 30 can be restricted from sliding in the direction of the inner side 104 and the outer side 105, so that the elastic plate 30 can more accurately apply elastic force to the foot.

[0047] As a preferred embodiment of the present invention, the elastic plate 30 is a carbon fiber plate, a nylon plate or a TPU plate, and the thickness of the elastic plate 30 is 1 mm to 3 mm.

[0048] As a preferred embodiment of the present invention, the Shore D hardness value of the elastic plate 30 is 65 to 75, the Shore C hardness value of the midsole 10 is 45 to 55, the Shore C hardness value of the cover plate 20 is 45 to 55, and the Shore A hardness value of the outsole 40 is 55 to 64.

[0049] As a preferred embodiment of the present invention, the midsole 10 and the cover plate 20 are made of the same material, the midsole 10 is made of EVA or ETPU, and the outsole 40 is made of rubber.

[0050] As a preferred embodiment of the present invention, the position of the front end of the metatarsal bone corresponding to the lower surface of the sole body is the starting point P, and the starting point is 8-15mm forward as the N point. A first arc segment 107 is formed between the P point and the N point, and a second arc segment 108 is formed from the N point to the front end of the sole body. The curvature of the first arc segment 107 is smaller than the curvature of the second arc segment 108. The present invention increases the curvature at the N point. When the foot is bent, the second arc segment 108 provides a more stable support platform, which is better prepared for stretching and helps athletes to stretch better. As a preferred embodiment of the present invention, the height difference (i.e., the warp) from the P point to the end of the forefoot portion 101 is 33-40mm, which is larger than the warp of 20-25mm of ordinary soles.

[0051] As a preferred embodiment of the present invention, the rear end of the heel portion 103 of the sole body is provided with a downwardly extending inclined surface 106, and the inclined surface 106 extends obliquely downward from the middle of the rear end of the heel portion 103 to the lower surface of the heel portion 103. With this structure, when landing, the contact point of the heel portion 103 is forward, which can slightly improve the long jump performance.

[0052] Preferably, the present invention further provides a U-shaped support piece 50 at the heel portion 103. The U-shaped support piece 50 is provided on the upper surface of the midsole 10 and extends upward. The U-shaped support piece 50 may be made of TPU material, which can further limit the heel and reduce the risk of the sole rolling over.

[0053] The product form of the present invention is not limited to the embodiments of this case. Any appropriate changes or modifications made by anyone with similar ideas should be deemed to be within the patent scope of the present invention.

Claims

1. A long jump shoe, comprising a sole body, the sole body comprising an outsole and a midsole composited on the outsole, the position of the sole body corresponding to the front of the sole is the forefoot portion, the position corresponding to the heel is the heel portion, the position corresponding to the arch is the arch portion, the side corresponding to the inner side of the instep is the inner side, and the side corresponding to the outer side of the instep is the outer side, characterized in that: The midsole is provided with a mounting groove corresponding to the forefoot portion, the mounting groove extends from the upper surface of the midsole to the lower surface, and the mounting groove extends from the inner side of the midsole to the outer side. An elastic plate is installed in the mounting groove, the front end of the elastic plate is arranged corresponding to the front end of the metatarsal bone of the foot, and the rear end of the elastic plate extends to the rear end of the forefoot portion. A cover plate is provided on the elastic plate, and the cover plate is embedded in the mounting groove. The lower surface of the cover plate is pressed against the upper surface of the elastic plate, and the upper surface of the cover plate is flush with the upper surface of the midsole. The hardness of the elastic plate is greater than the hardness of the midsole, and the hardness of the elastic plate is greater than the hardness of the cover plate.

2. A long jump shoe as claimed in claim 1, characterized in that: The front end of the elastic plate corresponds to the front end of the first metatarsal, the front end of the second metatarsal, the front end of the third metatarsal, the front end of the fourth metatarsal and the front end of the fifth metatarsal of the foot and extends in the medial and lateral direction of the sole body.

3. A long jump shoe as claimed in claim 1, characterized in that: The upper surface of the elastic plate forms a first arched protrusion and a second arched protrusion, the lower surface of the elastic plate forms a first strip groove corresponding to the first arched protrusion, and the lower surface of the elastic plate forms a second strip groove corresponding to the second arched protrusion. The first arched protrusion and the second arched protrusion both extend from the front end to the rear end of the elastic plate. The first arched protrusion and the second arched protrusion divide the elastic plate into a first area, a second area and a third area arranged along the medial and lateral directions. The first area corresponds to the first metatarsal, the second area corresponds to the second metatarsal and the third metatarsal, and the third area corresponds to the fourth metatarsal and the fifth metatarsal.

4. A long jump shoe as claimed in claim 3, characterized in that: A first receiving groove is provided on the cover plate corresponding to the first arched protrusion, and a second receiving groove is provided on the cover plate corresponding to the second arched protrusion. The installation groove penetrates to the inner end surface of the midsole and forms a notch on the midsole. The elastic plate forms an extended support portion extending into the notch corresponding to the notch.

5. A long jump shoe as claimed in claim 4, characterized in that: The elastic plate is a carbon fiber plate, a nylon plate or a TPU plate, and the thickness of the elastic plate is between 1 mm and 3 mm.

6. A long jump shoe as claimed in claim 4, characterized in that: The Shore hardness D value of the elastic plate is 65 to 75, the Shore hardness C value of the midsole is 45 to 55, the Shore hardness C value of the cover plate is 45 to 55, and the Shore hardness A value of the outsole is 55 to 64.

7. A long jump shoe as claimed in claim 6, characterized in that: The midsole and the cover plate are made of the same material, the midsole is made of EVA material or ETPU material, and the outsole is made of rubber material.

8. A long jump shoe as claimed in claim 1, characterized in that: The position of the front end of the metatarsal bone corresponding to the lower surface of the sole body is the starting point P, and 8-15 mm forward of the starting point is point N. A first arc surface segment is formed from point P to point N, and a second arc surface segment is formed from point N to the front end of the sole body. The curvature of the first arc surface segment is smaller than that of the second arc surface segment.

9. A long jump shoe as claimed in claim 8, characterized in that: The height difference from the point P to the end of the forefoot portion is 33-40 mm.

10. A long jump shoe as claimed in claim 1, characterized in that: The rear end of the heel portion of the sole body is provided with an inclined surface extending downward, and the inclined surface extends obliquely downward from the middle of the rear end portion of the heel portion to the lower surface of the heel portion.

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