JP4868665B2 - running shoes - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a running shoe, particularly a running shoe suitable for speed running.
[0002]
[Prior art]
In normal adult walking, weight load is first applied to the back of the buttocks while turning around from the outside to the inside of the buttocks, and then along the back of the buttocks in the longitudinal direction of the foot from the back of the buttocks. First, after stepping forward with the ball, the back of the ball part of the fifth finger, that is, the back of the fifth metatarsal phalange joint, stepping on the ground strongly while controlling the body posture balance. It is moved by stepping on the ground while rolling to the back of the ball joint of the finger, that is, the back of the joint of the first metatarsal bone and the first proximal phalanx, and then warps the first proximal phalanx and the first distal phalanx. It is said that the ground is strongly gripped by the back surface of the first distal phalanx (first finger) while being pitched and kicked forward with the first to fifth fingers, especially the first, second and third fingers, In the initial stage of landing, the dynamic maximum of 1.2 to 3.0 times the body weight It is said that a load is imposed, and walking shoes and running shoes equipped with viscoelastic shock absorbers that absorb impact by converting impact energy to thermal energy on the heel and tread of the shoe sole according to this walking and running process Proposed.
[0003]
However, recent studies have revealed the following. That is, in speed running, an area centered around the cubic bone outside the foot first lands, and then spins (rotates) toward the head of the fifth metatarsal, that is, toward the outer ball portion of the stepping portion. The head region of the 4th to 5th metatarsals landed, and then the head of the 4th to 1st metatarsals landed while turning around at the stepping portion, and the 3rd to 1st metatarsals. The maximum load due to the body weight is imposed on the head, and the treading portion is in a landing state. In this case, the buttocks have not landed. Therefore, even at this time, it is said that the inner longitudinal arch of the foot cannot absorb the shock and the impact on the leg and ankle is great. Next, with the movement of the trunk gaining propulsive force by the other side limb, the heel of the foot rises due to the contraction of the triceps surae muscle consisting of the peroneal and soleus muscles of the leg of the foot, and the stepping part from the stepping part The kicking motion is started while the midfoot part of the foot starts to bend, and the primary acceleration is applied while the pronation of the first phalange from the third to the first metatarsal part (pronation), and The extensors such as the third peroneus, the anterior tibialis, the long finger extensor, the long thumb extensor, etc. that pass through the back of the ankle are stretched and run diagonally downward and forward on the outer surface of the buttocks. As the flexor muscles, such as the long peroneal and short peroneal muscles, pass forward, the midfoot part of the foot from the stepping part to the stepping part further buckles and the buttocks rise. Acceleration is further added with the tip of the first finger landing from the head of the third metatarsal, and the long rib Acceleration is added at once by the contraction of the plantar flexor muscle that forms the longitudinal arch of the foot such as the long thumb flexor, the long finger flexor, the short finger flexor, the thumb abductor, and the little abductor. The acceleration force is greater than the reaction force, and the second metatarsal head and the distal ends of the first and third phalanges, which have landed last, kick off the ground and take off, and the final acceleration stage is reached.
[0004]
Therefore, in the running shoes, the supination action and the pronation action caused by the treading part, and the pronation action from the first to fourth metatarsal joints of the treading part to the first phalange tip direction when kicking out. To increase the acceleration caused by the contraction of the plantar muscles that form the bottom flexion and vertical arch of the foot, and is also loaded on the foot of the shoe sole when landing It is important to absorb the dynamic maximum load and increase the resilience at the time of kicking out to give acceleration. To do so, the extension of the extensor group passing through the back of the ankle in the foot itself and the rapid and powerful contraction of the plantar flexor group running diagonally from the inside and outside of the toes toward the sole and passing through the bottom. In addition, the plantar flexor muscle group that forms the vertical arch of the foot is promoted by controlling the posture balance at the time of running, while promoting the supination of the stepping part at the time of landing, the pronation action and the pronation action at the time of kicking It has been a subject to be strongly contracted to add acceleration, and to further enhance the impact absorbability of the stepping part from the step part of the shoe sole when landing and the resilience when kicking out.
[0005]
For this purpose, the foot and the shoe heel part and the heel front part are brought into close contact with the shoe heel part and the shoe heel part and the shoe heel front part to provide stability by integrating the foot and the shoe. In addition, it is considered indispensable to simultaneously enhance the impact absorption and rebound resilience of the sole of the shoe sole. From this point of view, a conventional shoe sole treading part with a viscoelastic (low rebound) shock absorber not only hinders the addition of acceleration during running, but also decreases stability. It is said to be the cause of knee joint pain.
[0006]
[Problems to be solved by the invention]
The present invention further provides stability to the rear part of the shoe when worn by integrating the heel part, the step part, and the front part of the heel with the foot during running, and the extensor that passes through the back part of the foot. The plantar that tightens the flexor group that passes through the sole from the side of the group and the ankle, promotes the supination, pronation and plantar flexion of the foot tread, and forms the longitudinal arch of the foot Accelerates flexor contraction and effectively produces acceleration at the time of kicking, and absorbs the landing impact at the foot of the shoe sole, and at the same time by the resilience of the sole at the time of kicking The aim is to provide a running shoe that can be given acceleration.
[0007]
[Means for Solving the Problems]
The present invention relates to a support band that extends from the lower back end 311 of the buttocks toward the rear rear portion 313 along the cuff 312 corresponding to the lower extensor rebar support band b from the flexor support band a on the inner side of the foot in the inner portion 31 of the hood 3. A mountain-shaped support band 41 is formed which includes a support band 412 extending from the central lower edge 314 to the rear opening 313 without stepping on the 411, and extends downward from the lower rib support band c outside the foot in the outer side 32 of the hood 3 Corresponding to the muscle support band b, a support band 42 extending from the rear lower end 321 of the buttock toward the rear opening 323 along the cuff 322 is provided, and the inner and outer support bands 41 and 42 can be tightened by the tightening means 43. The running shoe characterized by the above is defined as the invention of claim 1, and is formed from the middle foot part of the sole, that is, the line connecting the first wedge bone to the cubic bone from the step part of the midsole 1 to the step part of the sole. The line connecting the 1st to 5th metatarsal phalange joints Corresponding to the part, the impact resilience body 2 having impact resilience according to JISK6301 of 70% or more and hardness of 45 to 65 degrees according to SRIS-0101 (expanded rubber test method according to the Japan Rubber Association standard) is inserted. In the inner part 31 of the hood 3, the support band 411 and the stepping band 411 that extends from the lower back end 311 of the buttock along the cuff 312 to the rear opening 313 corresponding to the lower extensor basin b from the inner side of the foot. First, a chevron support band 41 comprising a support band 412 extending from the center lower edge 314 toward the opening rear part 313 is provided, and the outer extremity 32 of the hood 3 is provided with a lower extensor strut b from the lower rib support band c outside the foot. A support band 42 is provided from the rear rear lower end 321 to the rear opening 323 along the mouth 322 so that the inner and outer support bands 41 and 42 can be tightened freely by the tightening means 43. Running shoes It is an invention of Motomeko 2.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the supports 41 and 42 are formed in a strip of rubber, synthetic resin, cloth, leather, etc., and are attached to the inner and outer sides 31 and 32 of the shoe cover by appropriate means such as sewing and welding. Yes. The support body 41 includes a rib, a talus, a scaphoid bone, and a posterior tibial muscle passing through the inside of the inner side 31 of the heel (an assist of supination and plantar flexion, formation of a longitudinal arch). Action), long flexor muscles (flexion of toes, plantar flexion, supination of the foot, formation of longitudinal arch), long flexor muscles (pronation of the foot, flexion of the toes, flexion of the foot) A longitudinal arch is formed from the lower rear end 311 of the buttocks along the cuff 312 along the flexor strut that covers the vertical arch and the like and supports it at a predetermined position. (Foot dorsiflexion, supination of the foot), long finger extensor (foot dorsiflexion, extension of the toe, pronation of the foot), long thumb extension (extension of the toe, extension of the foot) The support 411 extending to the inner opening rear part 313 of the cover and the inner opening rear part 313 of the cover are branched along the lower extensor retinaculum b ′ which covers the action and the like and is supported at a predetermined position. The back of the foot A support 412 extending ShitaShinsuji retinaculum b '' section central lower portion 314 arch of the inner shoes 胛被 along branched Manzanillo connexion is formed in a mountain shape.
[0009]
The support 42 is provided on the outer side 32 of the heel, and on the outer side of the heel of the foot, the ribs of the foot, the talus, and the cuboid bone and the short peroneus muscles (plantar flexion of the foot, pronation of the foot). , The lower rear end of the heel part of the outer part 32 along the lower rib span which covers the long peroneal muscles (pronation of the foot, plantar flexion of the foot) and supports them in a prescribed position 321 extends along the mouth 322, and further extends to the rear opening 323 of the outer cover along the lower extensor strut b '.
[0010]
In the present invention, the tightening means 43 is constituted by a band system such as a shoelace / eyelet system, a band / surface fastener system, a folded band / ring / surface fastener system, a band / buckle system, or the like. When the tightening means 43 is configured by the band method, the width of the opening can be adjusted and the stretchability can be adjusted by configuring the band with an elastic material such as a rubber woven cloth or spandex (registered trademark) . It is possible to smoothly adjust the tightening pressure of the supports 41 and 42, and it is possible to relieve excessive pressure on the flexor, lower extensor, and lower ribs by the supports 41 and 42, Even more preferred. When the tightening means 43 is configured by a band system, it is convenient to attach the band if the band and the support body 41 or 42 are integrally formed.
[0011]
In the present invention, if the treadle support members 51, 52 are opposed to the treading portions on the inner and outer sides of the cover and are fastened by the treading portion tightening means 53, landing and kicking out at the treading portion can be performed. It can be performed more stably. In this case, the fastening means 53 is of a folded band, ring, and hook-and-loop type, and the tightening direction of the band 531 and the tightening direction of the band 431 that is the folded band, ring, and hook-and-loop fastener are similarly set as the fastening means 43. If they are set in opposite directions, the tightening directions of the tightening means 43 and 53 at the front part of the heel and the stepping part are opposite to each other, and the tightening direction of the entire front opening part is either outside or inside the hood. There is no bias to one side, which is even more convenient.
[0012]
In the present invention, the impact-absorbing highly repulsive elastic material 2 is one in which impact energy from outside is temporarily stored as deformation energy to absorb the impact, and when the deformation returns, it is re-released as kinetic energy. EVA, EPT , EPDM and other polyolefin-based synthetic resins or rubbers and foams composed mainly of mixed polymers of ethylene and α-olefin copolymers, which are copolymers of ethylene and propylene, butene, pentene, hexene, pentene, octene, etc. The configured one is used. In the present invention, the impact resilience 2 of the impact-absorbing high resilience elastic body 2 is limited to 70% or more and the hardness according to SRIS-0101 is limited to 45 to 65 degrees when the resilience becomes less than that. If the hardness is lower than that, the elastic body 2 is easily deformed by impact and the stability during running is reduced. If the hardness is higher, the shock absorption is reduced. This is because there are drawbacks. In the present invention, if the shock-absorbing highly repulsive elastic material 2 is formed thick from the step part to the step part of the midsole of the shoe sole and is thinly formed with the shoe sole part facing rearward, Even when the buttocks descend and try to land at the part landing stage, the rebound elastic body gradually strengthened at the thick part at the rear end prevents the landing of the buttocks, and the front part at the time of landing The center of gravity moves smoothly, the kicking operation can be performed more quickly, and it is more effective.
[0013]
[Effects of the invention]
Since the present invention is configured as described above, in the invention of claim 1, if the support body 41 and the support body 42 are tightened and tightened by the tightening means 43, the support body 411 constituting the support body 41 is formed. In the inner part 31 of the shoe cap, the ribs, the talus, the scaphoid bone and the posterior tibial muscle (assistance of supination and plantar flexion, arch-forming action), Finger flexor muscles (flexion of toes, plantar flexion, supination of the foot, arch formation action), long flexor muscles (prolapse of legs, flexion of the toe, dorsiflexion of the foot, arch formation action), etc. By supporting the bones and flexors via the flexor struts that cover the flexors, the inner part 31 of the shoe visor can be brought into close contact with the inner side surface of the foot from the buttocks of the foot, and the shoe 42 is supported by the support 42. In the outer side 32 of the garment, the ribs, talus, and cuboid bones on the outer side of the foot and the short passing through the outside Cover the bone muscles (plantar flexion of the foot, pronation of the foot), the long peroneal muscles (pronation of the foot, plantar flexion of the foot), and connect the outer part 32 of the shoe cap through the lower rib support band Anterior diameter bone that can be in close contact with the heel portion from the heel portion of the foot and passes through the scaphoid bone, the cubic bone, and the outside thereof at the upper heel portion of the support body 41.42 and the tightening means 43 at the front portion of the shoe heel. Muscles (flexion of ankles, supination of the foot), long finger extensors (flexion of the ankle, extension of the toes, pronation of the foot), long thumb extensors (extension of the toes, extension of the toes), etc. The front part of the heel of the shoe can be in close contact with the foot through the lower extensor extensor retinaculum that covers the upper extensor. In this way, the support bodies 41 and 42 define these bones, flexor muscle groups, and extensor muscle groups without hindering the movements of these bones, flexor muscle groups, and extensor muscles from the buttocks of the foot. Can be supported in position. Therefore, the running shoe of the present invention includes the extensor group that passes through the back of the ankle by integrating the heel portion, the step portion, and the front portion of the heel with the foot, and the foot portion from the side surface of the ankle. Tighten the flexor muscles to promote the supination and pronation action of the stepping part, the body posture balance is maintained, and the long peroneus, the long thumb flexor, the long flexor, Accelerates contraction of plantar flexor muscles that form the longitudinal arch of the foot, such as the short finger flexor, thumb abductor, and pinky abductor, and effectively produces acceleration at the time of kicking by its rebound I can do it.
[0014]
Furthermore, in the invention of claim 2, from the stepped portion to the stepped portion of the midsole 1 of the shoe sole, the impact resilience according to JISK6301 is 70% or more and the hardness according to SRIS-0101 is 45 to 65 degrees of impact absorbing high resilience. Since the body 2 is inserted, the impact at the time of landing from the stepping portion to the stepping portion can be alleviated, and at the same time, the acceleration at the time of kicking can be further added due to the resilience.
[Brief description of the drawings]
FIG. 1 is an inner side view of a running shoe.
FIG. 2 is an outer side view of a running shoe.
FIG. 3 is a plan view of a running shoe.
FIG. 4 is a structural diagram of the inside of a foot.
FIG. 5 is a structural diagram of the outside of a foot.
FIG. 6 is a structural diagram of the front of the foot.
1. Midsole 2. 2. High resilience body Cover 31 ··· Inner portion 311 ··· Rear lower end portion 312 · · · Closure 313 · · · Rear portion 314 · · · Stepless center lower edge portion 32 · · · Outer portion 321 ··· Lower rear portion 322... Mouth 323. Yamagata support band 411 ... support body 412 ... support band 42. Support band 43. Tightening means a. Flexor struts b. Lower extensor retinaculum c. Lower rib branch

Claims (2)

  In the inner part (31) of the hood (3), from the lower flexor basin (a) to the lower extensor basin (b) on the inner side of the foot, from the rear lower end (311) of the buttock along the mouth (312) A support band (411) heading toward the rear opening (313) and a mountain-shaped support band (41) composed of a support band (412) heading toward the rear rear opening (313) from the lower central portion (314) of the stepless portion. Corresponding to the lower extremity strut (c) to the lower extensor strut (b) on the outer side (32) of the foot (3) from the lower rear end (321) of the buttock along the cuff (322) A running shoe characterized in that a support band (42) directed toward the rear opening (323) is provided, and the inner and outer support bands (41) and (42) are freely tightened by a tightening means (43).   JISK6301 corresponding to the part of the line connecting the first to fifth metatarsal joints from the line connecting the first bone to the cubic bone from the step part to the step part of the midsole (1) of the shoe sole. Insert an impact-absorbing highly repulsive elastic body (2) with a rebound resilience of 70% or more and a hardness of 45 to 65 degrees according to SRIS-0101, and inside the foot (3) Corresponding to the lower extensor reinforcer (b) from the lower flexor reincline (a) and the support band (411) toward the rear rear part (313) from the lower rear end (311) of the buttocks along the cuff (312) First, a chevron support band (41) comprising a support band (412) from the center lower edge (314) to the rear opening (313) is provided, and the outer side (32) of the hood (3) A support band from the lower rib support (c) to the lower extensor support (b) toward the rear opening (323) from the rear rear lower end (321) along the cuff (322) A running shoe characterized in that (42) is provided and the inner and outer support bands (41) and (42) are freely tightened by the tightening means (43).

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