JP4764396B2 - Sole structure of sports shoes - Google Patents

Description

  The present invention relates to a sole structure for sports shoes, and in particular, to an improvement in the structure.

  As the sole structure of sports shoes used in various sports, the present applicant has proposed a corrugated sheet incorporated in a midsole (see Japanese Patent Application Laid-Open No. 11-203). The sole structure shown in the publication includes a midsole generally composed of an upper midsole and a lower midsole made of a soft elastic member, a corrugated sheet inserted between the upper midsole and the lower midsole, and a lower midsole. It is affixed to the lower surface, and consists of a road surface and an outsole that directly contacts the ground.

In this case, since the heel portion of the midsole incorporates a corrugated sheet, a resistance force is generated that suppresses the lateral displacement of the heel portion of the midsole in the lateral direction when the shoe lands. As a result, the lateral movement of the heel portion of the shoe is prevented, and running stability is ensured.
JP 11-203 A

  However, since the conventional structure is a four-layer structure including an upper midsole, a lower midsole, a corrugated sheet and an outsole, it is generally heavy, the assembly process is somewhat complicated, and the mold cost is excessive. There is a disadvantage of becoming high.

  The present invention has been made in view of such conventional circumstances, and provides a sole structure for sports shoes that can reduce the weight while ensuring running stability, simplify the manufacturing process, and reduce the cost. The purpose is to do. Another object of the present invention is to control the flexibility of the outsole. Still another object of the present invention is to control the thrust force from the ground contact surface to the outsole.

The sole structure of the sport shoe according to the first aspect of the present invention includes a midsole and a plate-like outsole disposed at a lower portion of the midsole and formed of a material harder than the midsole. The midsole is disposed at least on the heel portion of the shoe, and a ridge line extends in the sole width direction from at least one of the inner edge or the outer edge of the lower surface of the heel portion toward the center in the sole width direction. A surface is formed. The outsole has a heel portion formed with a corrugated surface corresponding to the corrugated surface of the heel portion of the midsole, and a forefoot portion extending therefrom, and the corrugated surface of the heel portion of the outsole A plurality of creats are provided on the lower surface of. The term “extension” used in the present specification includes the case where the heel portion and the forefoot portion are integrated not only by using the same material but also by bonding outsole members formed from different materials. It is a concept.

The sole structure of the sport shoe according to the invention of claim 2 is characterized in that, in claim 1, the creats are arranged so as to control the flexibility of the outsole.

The sole structure of the sport shoe according to the invention of claim 3 is characterized in that, in claim 1, the creats are arranged so as to control the push-up force from the ground contact surface to the outsole.

The sole structure of the sports shoe according to the invention of claim 4 is characterized in that, in claim 2 or 3, the creat is disposed in a wave-shaped peak or valley portion of the outsole. In this specification, as shown in the enlarged side view of FIG. 5, when the corrugated surface of the outsole is viewed from the side with the ground plane side down, the bend is bent to the side away from the ground plane. The part is referred to as “mountain”, and conversely, the bent part protruding toward the grounding surface is referred to as “valley”.

The sole structure of the sport shoe according to the invention of claim 5 is characterized in that, in claim 2 or 3, the creats are arranged across the wave-shaped peaks or valleys of the outsole.

The sole structure of the sport shoe according to the invention of claim 6 is characterized in that, in claim 1, the midsole is extended from the heel portion of the shoe to the forefoot portion.

The sole structure of the sports shoe according to the invention of claim 7 is the sole structure according to claim 1, wherein the wavy ridge line of the heel portion of the outsole extends across the entire width direction between the inner edge portion and the outer edge portion of the outsole heel portion. It is characterized by extending.

The sole structure of the sports shoe according to the invention of claim 8 is characterized in that, in claim 1, a corrugated surface is formed at a front foot portion of the outsole.

The sole structure of the sports shoe according to the invention of claim 9 is characterized in that, in claim 1, the heel portion of the midsole incorporates a corrugated sheet.

The sole structure of the sport shoe according to the invention of claim 10 is extended from the heel portion to the forefoot portion of the shoe, and the ridge line extends from either one of the inner edge portion or the outer edge portion toward the sole width direction center. An outsole having a bottom wall part having a corrugated surface, and a heel part having a side wall part rising upward from the inner and outer edges of the bottom wall part, and disposed above the outsole in at least the heel part of the shoe In addition, a ridge line extends from at least one of the inner edge and the outer edge of the lower surface toward the center in the sole width direction, and a corrugated surface corresponding to the corrugated surface of the bottom wall portion of the outsole is formed. And a midsole housed inside the side wall at the heel part of the outsole, and the bottom wall wave at the heel part of the outsole. Multiple Kuritsu is provided on the lower surface of the Jo surface.

The sole structure of the sports shoe according to the invention of claim 11 is extended from the heel portion of the shoe to the forefoot portion, and the ridge line extends from either one of the inner edge portion or the outer edge portion toward the center in the sole width direction. An outsole having a heel portion formed with a corrugated surface, and disposed above the outsole in at least a heel portion of the shoe, and at least one of an inner edge or an outer edge of the lower surface thereof in the center in the sole width direction A midsole having a ridge portion extending toward the ridge line and having a corrugated surface corresponding to the corrugated surface of the heel portion of the outsole, and a corrugated sheet incorporated in the heel portion of the midsole, A plurality of creats are provided on the lower surface of the corrugated surface of the heel portion of the outsole.

According to the sole structure of the first aspect of the present invention, the corrugated surface is formed on at least one of the inner edge or the outer edge of the outsole heel region, A corrugated surface corresponding to the corrugated surface of the sole heel portion is formed. Due to the corrugated surface formed on the mating surface of these outsole and midsole, a resistance force that suppresses lateral displacement of the heel part of the midsole in the lateral direction is generated when the shoe lands, As a result, it is possible to prevent lateral deflection of the heel portion of the shoe and to ensure running stability.

  Furthermore, in this case, the sole structure is a two-layer structure including a midsole and a plate-like outsole disposed below the midsole. As a result, the number of parts can be reduced, the weight can be reduced, the manufacturing process can be simplified, the mold cost can be reduced, and the cost can be reduced. Furthermore, the flexibility can be improved by being generally thinner than the conventional structure.

In addition, in this case, a plurality of cleats are provided on the lower surface of the corrugated surface of the outsole heel region. The cleats are anti-slip protrusions attached to the shoe sole, and include both resin and metal. Note that “crete” used in the present specification is used in a concept including spikes. Therefore, the sole structure according to the invention of claim 1 is applied to, for example, soccer shoes, baseball spike shoes, golf shoes, track shoes for athletics, and the like.

The creat is arranged to control the flexibility of the outsole as described in the invention of claim 2, or the cleat is connected to the outsole as described in the invention of claim 3. It arrange | positions so that the thrust force from the ground may be controlled.

As described in the fourth aspect of the present invention, when the creat is formed in the corrugated peak or valley portion of the outsole, it is possible to prevent the outsole from being inhibited from being bent. In particular, when creats are formed in the corrugated valley portion of the outsole, the thrust force from the ground contact surface to the outsole is distributed to the side of the mountain disposed on both sides of the valley. Can be relaxed.

As described in the invention of claim 5, when the creats are arranged across the wave-shaped peaks or valleys of the outsole, that is, they are arranged across the adjacent mountains and mountains or valleys and valleys. In this case, the push-up force from the ground contact surface to the outsole can be effectively mitigated by the wave shape of the outsole, and the flexibility of the outsole can be suppressed. For example, when the creats are disposed across the corrugated troughs and valleys of the outsole, the push-up force from the contact surface can be dispersed and absorbed at both troughs.

As described in the invention of claim 6, the midsole may extend from the heel portion of the shoe to the forefoot portion. In this case, cushioning properties can be secured over the entire front-rear direction of the shoe.

As described in the invention of claim 7, the corrugated ridgeline in the outsole heel region may extend over the entire width direction between the inner edge portion and the outer edge portion of the outsole heel region. In this case, it is possible to more reliably prevent the lateral deflection of the heel portion of the shoe.

As described in the eighth aspect of the invention, a corrugated surface may be formed also in the forefoot portion of the outsole, thereby preventing the lateral vibration of the forefoot portion of the shoe.

Further, as described in the invention of claim 9, the corrugated portion of the midsole may incorporate a corrugated sheet. In this case, it is possible to more reliably prevent the lateral deflection of the heel portion of the shoe.

According to the sole structure of the tenth aspect of the present invention, the corrugated surface is formed on either the inner edge or the outer edge of the outsole heel region, and the bottom surface of the midsole heel region has the outsole A corrugated surface corresponding to the corrugated surface of the heel region is formed. Due to the corrugated surface formed on the mating surface of these outsole and midsole, a resistance force that suppresses lateral displacement of the heel part of the midsole in the lateral direction is generated when the shoe lands, As a result, it is possible to prevent lateral deflection of the heel portion of the shoe and to ensure running stability.

Furthermore, in this case, the sole structure is a two-layer structure including an outsole and a midsole disposed inside the side wall portion of the outsole. As a result, the number of parts can be reduced, the weight can be reduced, the manufacturing process can be simplified, the mold cost can be reduced, and the cost can be reduced.

In addition, in this case, a plurality of creats are provided on the lower surface of the corrugated surface of the outsole heel region. By these creats, the flexibility of the outsole can be controlled, and the push-up force from the ground contact surface to the outsole can be controlled.

According to the sole structure of the eleventh aspect of the present invention, the corrugated surface is formed on either the inner edge or the outer edge of the outsole heel region, and the bottom surface of the midsole heel region has an outsole A corrugated surface corresponding to the corrugated surface of the heel region is formed. Due to the corrugated surface formed on the mating surface of these outsole and midsole, a resistance force that suppresses lateral displacement of the heel part of the midsole in the lateral direction is generated when the shoe lands, As a result, it is possible to prevent lateral deflection of the heel portion of the shoe and to ensure running stability. Further, in this case, the wobbling sheet incorporated in the heel part of the midsole can more reliably prevent the lateral vibration of the heel part of the shoe.

Furthermore, in this case, the sole structure has a two-layer structure including an outsole and a midsole disposed above the outsole. As a result, the number of parts can be reduced, the weight can be reduced, the manufacturing process can be simplified, the mold cost can be reduced, and the cost can be reduced. Furthermore, the flexibility can be improved by being generally thinner than the conventional structure.

In addition, in this case, a plurality of creats are provided on the lower surface of the corrugated surface of the outsole heel region. By these creats, the flexibility of the outsole can be controlled, and the push-up force from the ground contact surface to the outsole can be controlled.

  As described above, according to the sole structure of the sport shoe according to the present invention, the two-layered sole structure including the midsole and the plate-like outsole under the midsole is adopted, and the corrugated surface is formed on the outsole heel region. Thus, while ensuring running stability, the weight can be reduced, the manufacturing process can be simplified, and the cost can be reduced.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
[Example of application to soccer shoes]
FIG. 1 is a side view of a soccer shoe adopting a sole structure according to an embodiment of the present invention, FIG. 2A is a bottom view of the sole structure, and FIG. 1B is a side view of its inner side (ie, inside). (C) is an outer side (namely, outer side) side view.

  As shown in FIG. 1, the shoe sole of the soccer shoe 1 is provided at the lower part of the upper part 2 and extends from the shoe heel part to the front foot part, and has a generally plate-shaped outsole 3 that directly contacts the road surface. The midsole 4 is mainly composed of a midsole 4 which is disposed inside the outsole 3 and extends from the shoe heel portion to the middle foot portion. A plurality of creeps 5 are provided on the lower surface of the outsole 3.

  As shown in FIGS. 2B and 2C, the outsole 3 has side wall portions 3b and 3c that rise upward (in the left-right direction in the figure) from the base surface 3a on the inner and outer upper sides. A corrugated portion 3d is formed on the inner and outer upper sides of the heel portion of the base surface 3a. A broken line L in FIG. 5A indicates the crest and trough lines of the wave shape portion 3d.

  The midsole 4 is disposed on the base surface 3 a of the outsole 3. A corrugated portion corresponding to the corrugated portion 3d of the outsole 3 is formed on the inner and outer upper sides of the heel portion of the midsole 4 (see FIG. 1).

  The midsole 4 is generally composed of a soft elastic member having good cushioning properties. Specifically, the midsole 4 is a foam of thermoplastic synthetic resin such as ethylene-vinyl acetate copolymer (EVA) or polyurethane ( A foam of thermosetting resin such as PU) or a foam of rubber material such as butadiene rubber or chloroprene rubber is used.

  In this case, the corrugated portion 3d is formed on the inner and outer insteps of the heel portion of the outsole 3, and the corrugated portion corresponding to the corrugated portion 3d is formed on the lower surface of the heel portion of the midsole 4. The corrugated surface formed on the mating surface of the outsole 3 and the midsole 4 generates a resistance force that suppresses the lateral displacement of the heel portion of the midsole 4 when the shoe lands. It has become. As a result, it is possible to prevent lateral deflection of the heel portion of the shoe and to ensure running stability.

  Further, in this case, the sole structure is composed of two layers of the outsole 3 and the midsole 4, so that the number of parts can be reduced, the weight can be reduced, the manufacturing process can be simplified, and the cost can be reduced. it can. Furthermore, the flexibility can be improved by thinning the sole structure.

  The midsole 4 may be extended from the shoe heel portion to the forefoot portion. In this case, cushioning properties can be secured over the entire front-rear direction of the shoe.

  Moreover, the wave shape of the heel part of the outsole 3 may be continuously formed over the entire width direction between the inner and outer shells of the heel part. In this case, it is possible to more reliably prevent the lateral deflection of the heel portion of the shoe.

  Further, a corrugated portion may be formed at the forefoot portion of the outsole 3, and in this case, lateral vibration of the forefoot portion of the shoe can be prevented.

  Moreover, in this embodiment, the creats 5 provided in the shoe heel portion are disposed across the corrugated valleys in the corrugated portion 3d of the outsole 3 (FIGS. 2B and 2C). As a result, it is possible to effectively relieve the push-up force from the ground contact surface with respect to the outsole 3 by absorbing both the adjacent valley portions of the wave shape of the outsole 3.

[Example of application to spike shoes for baseball]
3 is a side view of a baseball spike shoe adopting a sole structure according to an embodiment of the present invention, FIG. 4A is a bottom view of the sole structure, and FIG. c) is a side view of the outer side.

  As shown in FIG. 3, the sole of the baseball spike shoe 10 is provided at the lower part of the upper part 12, and extends from the shoe heel part to the forefoot part, and at the lower part of the midsole 14. It is mainly composed of a plate-shaped outsole 13 that is disposed and directly contacts the road surface. A plurality of creeps 15 are provided on the lower surface of the outsole 13.

  The midsole 14 is composed of an upper midsole 14a bonded to the lower surface of the upper portion 12 and a lower midsole 14b bonded to the lower surface thereof. A corrugated sheet 16 is inserted in the shoe heel portion between the upper midsole 14a and the lower midsole 14b. A through-hole 17 extending in the width direction is formed in the upper midsole 14a.

  The midsole 14 is composed of a soft elastic member having a good cushioning property made of a foam of thermoplastic or thermosetting resin or a foam of rubber material, as in the case of the soccer shoe of the above embodiment.

  As shown in FIGS. 4 (b) and 4 (c), a corrugated portion 13 d is formed on the inner and outer upper sides of the heel portion of the outsole 13. A broken line L in FIG. 4A indicates the peak and valley lines of the wave-shaped portion 13d. A corrugated portion corresponding to the corrugated portion 13d of the outsole 13 is formed on the inner and outer upper sides of the heel portion of the lower midsole 14b.

  Similarly, as shown in FIGS. 4 (b) and 4 (c), a corrugated portion 13e is formed on the inner / outer side of the forefoot portion of the outsole 13, and the forefoot portion of the upper midsole 14a. A corrugated portion corresponding to the corrugated portion 13 e of the outsole 13 is formed on the inner and outer upper sides.

  In this case, a corrugated portion 13d is formed on the inner and outer upper portions of the heel portion of the outsole 13, and a corrugated portion corresponding to the undulated portion 13d is formed on the lower surface of the heel portion of the lower midsole 14b. Therefore, the corrugated surface formed on the mating surface of the outsole 13 and the lower midsole 14b generates a resistance force that suppresses the lateral displacement of the heel portion of the midsole 14 when the shoe lands. It has become. As a result, it is possible to prevent lateral deflection of the heel portion of the shoe and to ensure running stability. Further, in this embodiment, since the corrugated sheet 16 is inserted between the upper and lower midsoles 14a and 14b, it is possible to more reliably prevent the lateral deflection of the heel portion of the shoe. The corrugated sheet 16 may have a shape smaller than the outer peripheral shape of the heel portion of the outsole 13, and in this case, the corrugated sheet does not appear on the inner and outer surfaces of the shoe heel portion, and Will be placed inside.

  Further, in this case, the forefoot portion of the shoe is constituted by a two-layered sole structure including the outsole 13 and the upper midsole 14a, so that the number of parts can be reduced, the weight can be reduced, and the manufacturing process can be reduced. Can be simplified and the cost can be reduced. Furthermore, the flexibility of the forefoot portion of the shoe can be improved by reducing the sole structure.

  Further, in this case, the corrugated portion 13e is formed on the forefoot portion of the outsole 13, and the corrugated portion corresponding to the corrugated portion 13e is formed on the lower surface of the forefoot portion of the upper midsole 14a. Due to the corrugated surface formed on the mating surface of the outsole 13 and the upper midsole 14a, it is possible to prevent the forefoot portion of the midsole 14 from being laterally displaced and deformed when the shoe is landed. Can be prevented.

  The corrugated portions 13d and 13e of the outsole 13 may be formed continuously over the entire width direction between the inner and outer insteps of the heel region and the forefoot region. In this case, Lateral runout of the forefoot part can be prevented more reliably.

  Moreover, in this embodiment, the creats 15 provided in the shoe heel portion are disposed in the corrugated valley portion of the corrugated portion 13d of the outsole 13 (see FIGS. 4B and 4C). Thereby, the pushing-up force from the ground contact surface with respect to the outsole 13 can be relieved. Similarly, the creat 15 provided on the inner instep side of the front foot portion of the shoe is disposed in the corrugated valley portion of the corrugated portion 13e of the outsole 13, so that the flexibility of the outsole can be maintained. The thrust force from the ground contact surface to the outsole 13 can be reduced.

1 is a side view of a soccer shoe employing a sole structure according to an embodiment of the present invention. (A) is a bottom view of the sole structure (FIG. 1), (b) is an inner side side view thereof, and (c) is an outer side side view. 1 is a side view of a spike shoe for baseball in which a sole structure according to an embodiment of the present invention is adopted. (A) is a bottom view of the sole structure (FIG. 3), (b) is an inner side side view thereof, and (c) is an outer side side view. It is a side surface enlarged view which shows the waveform part of an outsole.

1: Soccer shoes 3: Outsole 3d: Wave shape part 4: Midsole 5: Creats

10: Spike shoes for baseball 13: Outsole 13d: Wave shape part 14: Midsole 14a: Upper midsole 14b: Lower midsole 15: Creats 16: Corrugated sheet

Claims (11)

The sole structure of sports shoes,
A heel region that is disposed on at least the heel portion of the shoe and has a corrugated surface extending from at least one of an inner edge or an outer edge of the shoe to a center in the sole width direction and extending in the sole width direction A midsole having
The lower part of the midsole has a heel part formed with a corrugated surface corresponding to the corrugated surface of the midsole heel part, and a forefoot part extending from the heel part, and a plate-like outsole formed from hard material than said midsole,
A plurality of creats are provided on the lower surface of the corrugated surface of the heel portion of the outsole,
Sole structure of sports shoes characterized by that. In claim 1,
The creats are arranged to control the flexibility of the outsole,
Sole structure of sports shoes characterized by that. In claim 1,
The cleats are arranged to control the push-up force from the contact surface against the outsole;
Sole structure of sports shoes characterized by that. In claim 2 or 3,
The creat is disposed in a wave-shaped peak or valley portion of the outsole,
Sole structure of sports shoes characterized by that. In claim 2 or 3,
The creats are disposed across the corrugated peaks or valleys of the outsole,
Sole structure of sports shoes characterized by that. In claim 1,
The midsole extends from the heel portion of the shoe to the forefoot portion,
Sole structure of sports shoes characterized by that. In claim 1,
The wavy ridge line in the heel portion of the outsole extends across the entire width direction between the inner edge portion and the outer edge portion of the outsole heel portion.
Sole structure of sports shoes characterized by that. In claim 1,
A corrugated surface is formed on the forefoot portion of the outsole,
Sole structure of sports shoes characterized by that. In claim 1,
The heel portion of the midsole has a corrugated sheet,
Sole structure of sports shoes characterized by that. The sole structure of sports shoes,
A bottom wall portion extending from the heel portion of the shoe to the forefoot portion, and having a corrugated surface extending from one of the inner edge portion or the outer edge portion toward the center in the sole width direction, An outsole having a heel portion having a side wall portion that rises upward from the inner and outer edge portions of the bottom wall portion;
The shoe is disposed above the outsole in at least the heel portion of the shoe, and has a ridge extending from at least one of the inner edge or the outer edge of the lower surface toward the center in the sole width direction, and the bottom of the outsole. A corrugated portion formed with a corrugated surface corresponding to the corrugated surface of the wall portion, and a midsole housed inside the side wall portion in the corrugated portion of the outsole,
A plurality of creats are provided on the bottom surface of the corrugated surface of the bottom wall at the heel portion of the outsole,
Sole structure of sports shoes characterized by that. The sole structure of sports shoes,
An outsole having a heel portion extending from the heel portion to the forefoot portion of the shoe and having a corrugated surface extending from one of the inner edge portion or the outer edge portion toward the center in the sole width direction. When,
The shoe is disposed above the outsole in at least the heel portion of the shoe, and has a ridge extending from at least one of the inner edge or the outer edge of the lower surface toward the center in the sole width direction, and the heel portion of the outsole. A midsole having a heel portion formed with a corrugated surface corresponding to the corrugated surface;
A corrugated sheet incorporated in the heel region of the midsole,
A plurality of creats are provided on the lower surface of the corrugated surface of the heel portion of the outsole,
Sole structure of sports shoes characterized by that.

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