JP2010263969A - Bicycle shoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent easy transmission of an impact to a sole even if a spike is mounted in a bicycle shoe. <P>SOLUTION: This bicycle shoe 10 includes an upper, the sole 14, the spike 16, a spike fixing portion 18, and a cleat fixing portion 20. The upper covers the instep of a foot. The sole 14 has a lower sole section 24 made of an elastic body, an upper sole section 26 made of synthetic resin and an intermediate sole section 28 made of synthetic resin. The lower sole section is fixed to the upper. The upper sole section is disposed on the lower sole section facing the sole. The intermediate sole section is disposed between the lower sole section and the upper sole section and has an external shape smaller than that of the upper sole section. The spike is disposed to project from the lower sole section. The spike fixing portion is provided at the intermediate sole section and can fix the spike. The cleat fixing portion is provided at the intermediate sole section and can fix a cleat 40. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a shoe, and more particularly to a bicycle shoe capable of securing a cleat for use with a bicycle pedal.

  2. Description of the Related Art Conventionally, bicycle shoes that can fix cleats for use with bicycle pedals are known. The cleat can be detachably locked to a binding provided on the pedal. A conventional bicycle shoe includes an upper portion that covers an instep and a shoe bottom portion that is fixed to the upper portion. A cleat fixing part having a screw hole for fixing the cleat is attached to the shoe sole.

  In this type of bicycle shoe, in particular, a mountain bike shoe, a shoe that can be fitted with a metal spike for preventing slipping during walking is conventionally known (for example, see Patent Document 1). The spike is fixed to a spike fixing portion attached to the toe side of the shoe sole. The shoe sole portion of a conventional bicycle shoe has a hard upper sole portion (reinforcing plate) and a soft lower sole portion (shoe sole) made of synthetic rubber. A cleat fixing part is attached to the upper sole part to fix the cleat. Moreover, a spike fixing part is attached to the toe side of the upper sole part, and the spike is fixed.

JP-T-2001-523148

  In conventional bicycle shoes, spikes are attached to the upper sole portion. For this reason, when an impact is applied to the spike during walking, the impact is directly transmitted from the upper sole portion to the sole. Thus, when an impact is directly transmitted to the sole of the foot during walking, the rider's feet are easily fatigued by the impact.

  SUMMARY OF THE INVENTION An object of the present invention is to make it difficult for an impact to be transmitted to the sole of a bicycle shoe even if spikes are attached.

  The bicycle shoe according to the first aspect of the present invention is a shoe capable of fixing a cleat for use with a bicycle pedal. The bicycle shoe includes an upper portion, a shoe bottom portion, at least one spike, a spike fixing portion, and a cleat fixing portion. The upper part covers the instep. The shoe sole portion includes a lower sole portion made of an elastic body, an upper sole portion made of a synthetic resin, and an intermediate sole portion made of a synthetic resin. The lower sole portion is fixed to the upper portion. The upper sole portion is disposed above the lower sole portion so as to face the sole. The intermediate sole portion is disposed between the lower sole portion and the upper sole portion, and has an outer shape smaller than that of the upper sole portion. The spike is disposed so as to protrude from the lower sole portion. The spike fixing portion is provided in the intermediate sole portion and can fix the spike. The cleat fixing part is provided in the intermediate sole part and can fix the cleat.

  In this bicycle shoe, the shoe sole portion is composed of three members, a lower sole portion, an upper sole portion, and an intermediate sole portion, and a spike fixing portion is provided in the intermediate sole portion arranged in the middle. For this reason, even if an impact acts on the spike, the impact is transmitted from the intermediate sole portion to the sole through the upper sole portion. Therefore, the impact is not directly transmitted to the sole, and the impact is hardly transmitted to the sole even when the spike is attached.

  A bicycle shoe according to a second aspect is the shoe according to the first aspect, wherein the lower sole portion includes a cleat storage portion that stores the cleat so as not to protrude from the bottom surface of the shoe bottom portion, and at least one spike passage through which the spike can pass. And a hole. In this case, since the cleat does not protrude from the lower sole portion made of an elastic body, the cleat does not come into contact with the ground contact surface, and the rider can easily walk.

  A bicycle shoe according to a third aspect is the shoe according to the first or second aspect, wherein the intermediate sole portion has higher mechanical strength than the upper sole portion. In this case, since the mechanical strength of the intermediate sole portion to which the impact from the spike acts is strong, the spike can be firmly fixed and the impact is not easily transmitted to the upper sole portion.

  A bicycle shoe according to a fourth aspect of the present invention is the shoe according to any one of the first to third aspects, wherein the lower sole portion has a storage recess capable of storing the intermediate sole portion. The upper sole portion has an adhesion convex portion that is in close contact with the intermediate sole portion on the lower surface. The upper portion is bonded and fixed to the lower sole portion between the lower sole portion and the upper sole portion.

  In this case, the upper portion can be bonded to the lower sole portion made of an elastic body having good adhesion to synthetic leather or a breathable material that is normally used for the upper portion. For this reason, the upper part can be firmly bonded and fixed.

  According to the present invention, the shoe sole portion is constituted by three members, that is, the lower sole portion, the upper sole portion, and the intermediate sole portion, and the spike fixing portion is provided in the intermediate sole portion arranged in the middle. For this reason, even if an impact acts on the spike, the impact is transmitted from the intermediate sole portion to the sole through the upper sole portion. For this reason, the impact is not directly transmitted to the sole, and it is difficult to transmit the impact to the sole even when the spike is attached.

1 is a side view of a bicycle shoe according to an embodiment of the present invention. 1 is a plan view of a bicycle shoe according to an embodiment of the present invention. The bottom view. IV-IV sectional drawing of FIG. The disassembled perspective view of a shoe sole part. The top view of a lower sole part. The top view of an upper sole part. The top view of an intermediate | middle sole part.

  1 to 3, a bicycle shoe 10 according to an embodiment of the present invention is a shoe capable of fixing a cleat 40 for use with a pedal PD having a binding. The bicycle shoe 10 includes an upper portion 12 that covers an instep and a shoe bottom portion 14 that is fixed to the upper portion 12. Further, the bicycle shoe 10 includes a spike 16 protruding from the shoe sole portion 14, a spike fixing portion 18 provided on the shoe sole portion 14 for fixing the spike 16, and a cleat fixing portion 20 for fixing the cleat 40. ing.

  Upper part 12 is constituted using cloth which has air permeability, and synthetic leather. A plurality of (for example, three) fastening belts 22a, 22b, and 22c that can fasten the instep with a surface fastener are attached to the upper portion 12. As shown in FIG. 4, the upper portion 12 is inserted into a gap between a lower sole portion 24 and an upper sole portion 26, which will be described later, of the shoe sole portion 14, and is fixed to the lower sole portion 24 and the upper sole portion 26 with an adhesive. Yes.

  As shown in FIGS. 4 and 5, the shoe sole portion 14 includes a lower sole portion 24 fixed to the upper portion 12, an upper sole portion 26, an intermediate sole portion 28, and a covering 29. .

  The lower sole portion 24 is a member made of an elastic body such as synthetic rubber. As shown in FIGS. 3 to 6, the lower sole portion 24 includes a cleat storage portion 24a capable of storing the cleat 40 on the lower surface, and a shoe dropout prevention portion 24b for preventing the bicycle shoe 10 from falling off the pedal PD. ,have. A spike through hole 24c through which the spike 16 passes is formed on the toe side. The lower sole portion 24 has an accommodation recess 24d capable of accommodating the intermediate sole portion 28 on the upper surface. The storage recess 24 d is formed to have a length substantially the same as the thickness of the intermediate sole portion 28. Thereby, the upper surface of the intermediate sole portion 28 and the upper surface of the lower sole portion 24 are substantially flush with each other.

  The cleat storage portion 24 a is formed to be recessed so as to include the cleat fixing portion 20. The cleat storage portion 24a can store the cleat 40 fixed to the cleat fixing portion 20 so as not to protrude from the bottom surface. In this embodiment, the cleat storage portion 24a is formed through the upper and lower surfaces of the lower sole portion 24. The shoe dropout prevention part 24 b is formed to be recessed behind the cleat fixing part 20. The shoe dropout prevention portion 24b is formed continuously with the cleat storage portion 24a, and is formed to taper toward the rear. Therefore, in this embodiment, the shoe dropout prevention portion 24 b does not penetrate the lower sole portion 24.

  As shown in FIGS. 4, 5, and 7, the upper sole portion 26 is a member that is disposed above the lower sole portion 24 so as to face the sole of the foot. The upper sole portion 26 is a relatively hard synthetic resin member such as a polyamide resin. The upper sole portion 26 has an outer shape slightly smaller than the lower sole portion 24. The upper sole portion 26 has a substantially rectangular disposition recess 26a for disposing a nut member 44 having a female screw into which a bolt member 42 for fixing the cleat 40 is screwed. Two slits 20a and 20b constituting the cleat fixing part 20 are formed in the arrangement recess 26a along the front-rear direction. A nut member 44 is attached to the slits 20a and 20b. Thereby, the mounting position of the cleat 40 can be adjusted in the front-rear direction.

  As shown in FIG. 4, the nut member 44 is a plate in which two nut portions 44 a that fit into the first slits 20 a and 20 b and second slits 20 c and 20 d described later, and two nut portions 44 a are arranged at both ends. Part 44b. Further, the upper sole portion 26 has a close contact convex portion 26 b that is in close contact with the intermediate sole portion 28 on the lower surface. The close contact convex portion 26 b is formed so as to protrude in substantially the same shape as the outer shape of the intermediate sole portion 28. For this reason, a gap 30 (FIG. 4) is formed between the upper sole portion 26 and the lower sole portion 24 around the close contact convex portion 26b. As described above, the upper portion 12 is inserted into the gap 30 and fixed.

  As shown in FIGS. 4, 5, and 8, the intermediate sole portion 28 is disposed between the lower sole portion 24 and the upper sole portion 26. Specifically, it is disposed in a storage recess 24 d formed in the lower sole portion 24. The intermediate sole portion 28 is made of, for example, a glass fiber reinforced resin in which glass fibers are mixed in a polyamide resin, and is harder and has higher mechanical strength than the upper sole portion 26. Two spike fixing portions 18 formed integrally with a space are formed at the front portion (toe side) of the intermediate sole portion 28. The spike fixing portion 18 has a cylindrical shape, and a female screw portion 18a for fixing the spike is formed on the inner peripheral surface thereof. The spike fixing portion 18 is formed obliquely toward the front lower side. Second slits 20c and 20d constituting the cleat fixing part 20 are formed at positions facing the slits 20a and 20b of the intermediate sole part 28. The second slits 20c and 20d are slightly narrower than the first slits 20a and 20b. The intermediate sole portion 28 and the upper sole portion 26 are positioned by a positioning convex portion that protrudes from either one of them and a positioning concave portion that is recessed in either one.

  For example, the covering 29 is bonded to the upper surface of the upper sole portion 26, and is formed to be curved in accordance with the sole. The covering skin 29 may not be bonded to the upper sole portion 26.

  As shown in FIG. 5, the spike 16 is a synthetic resin member in which a metal flange 16a is integrally formed at the tip. A threaded portion 16b is formed at the base end of the spike, and is screwed and fixed to the female threaded portion 18a of the spike fixing portion 18.

  As described above, the spike fixing portion 18 is integrally formed with the intermediate sole portion 28 at the tip of the intermediate sole portion 28.

  The cleat fixing part 20 includes the slits 20a and 20b and the slits 20c and 20d described above, a bolt member 42, and a nut member 44. The cleat 40 has an oval recess 40a formed on one surface, and the oval recess 40a has an oval hole 40b having a smaller diameter than the oval recess 40a. An oval washer member 46 having two fixing holes 46a is attached to the oval recess 40a. The two bolt members 42 are screwed into the nut members 44 through the fixing holes 46a, and the cleat 40 is fixed to the bicycle shoe 10. At this time, the upper sole portion 26 and the intermediate sole portion 28 are fastened by the bolt member 42.

  In the bicycle shoe 10 configured as described above, the shoe sole portion 14 is composed of three members of the lower sole portion 24, the upper sole portion 26, and the intermediate sole portion 28, and the intermediate sole portion 28 disposed in the middle. A spike fixing portion 18 is provided. For this reason, even if an impact acts on the spike 16, the impact is transmitted from the intermediate sole portion 28 to the sole through the upper sole portion 26. For this reason, the impact is not directly transmitted to the sole, and even if the spike 16 is attached, the impact is hardly transmitted to the sole.

  Further, when the cleat 40 is removed from the pedal PD and the bicycle shoe 10 is shifted forward, and the shoe drop-off preventing portion 24b is disposed on the pedal PD as shown in FIG. The part is caught on the pedal PD. For this reason, even if the cleat 40 is not locked to the pedal PD, the pedal PD is difficult to move to the left and right, and the bicycle shoe 10 can be prevented from easily falling off the pedal PD.

<Other embodiments>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.

  (A) In the above embodiment, a polyamide resin is used for the upper sole portion 26 and a glass fiber reinforced resin obtained by mixing glass fibers with a polyamide resin is used for the intermediate sole portion 28, but the present invention is not limited to this. The intermediate sole portion 28 preferably has a higher mechanical strength than the upper sole portion 26. For example, a fiber reinforced resin obtained by impregnating a fiber such as glass fiber reinforced resin (GFRP) or carbon fiber reinforced resin (GFRP) with a synthetic resin may be used as the intermediate sole portion 28. Moreover, you may use the metal raw material which has elasticity. Furthermore, a hybrid material in which a metal material and a synthetic resin material are integrally formed by a technique such as insert molding may be used.

  (B) In the above embodiment, the spike fixing portion 18 is integrally formed with the intermediate sole portion 28, but the spike fixing portion 18 may be separate from the intermediate sole portion 28. For example, a metal nut member may be prevented from being attached to the intermediate sole portion. Further, a metal nut member may be fixed to the intermediate sole portion by insert molding.

  (C) In the above embodiment, the slits 20a and 20b constituting the cleat fixing part 20 are also formed in the upper sole part 26, but the present invention is not limited to this. For example, a storage recess penetrating the upper sole portion may be formed, and a slit may be formed only in the intermediate sole portion. In this case, the nut portion of the screw member is engaged with the slit of the intermediate sole portion.

  (D) In the above embodiment, the nut member 44 of the cleat fixing part 20 is formed separately from the intermediate sole part 28, but may be formed integrally with the intermediate sole part.

DESCRIPTION OF SYMBOLS 10 Bicycle shoes 12 Upper part 14 Shoe bottom part 16 Spike 18 Spike fixing | fixed part 20 Cleat fixing | fixed part 24 Lower sole part 24a Cleat storage part 24b Shoe fall-off prevention part 26 Upper sole part 26a Storage recessed part 26b Adhesion convex part 28 Middle sole part 40 Cleat PD pedal

Claims (4)

A bicycle shoe capable of fixing cleats for use with a bicycle pedal,
An upper part covering the instep,
A lower sole portion made of an elastic body fixed to the upper portion, an upper sole portion made of synthetic resin disposed above the lower sole portion and facing the sole, and the lower sole portion and the upper sole portion An intermediate sole portion made of a synthetic resin having an outer shape smaller than that of the upper sole portion,
At least one spike arranged to protrude from the lower sole portion;
A spike fixing portion provided in the intermediate sole portion and capable of fixing the spike;
A cleat fixing portion provided on the intermediate sole portion and capable of fixing the cleat;
Bicycle shoes equipped with.   2. The bicycle according to claim 1, wherein the lower sole portion includes a cleat storage portion that stores the cleat so that the cleat does not protrude from a bottom surface of the shoe sole portion, and at least one spike passage hole through which the spike can pass. For shoes.   The bicycle shoe according to claim 1 or 2, wherein the intermediate sole portion has higher mechanical strength than the upper sole portion. The lower sole portion has a storage recess capable of storing the intermediate sole portion,
The upper sole portion has a close contact convex portion that is in close contact with the intermediate sole portion on the lower surface,
The bicycle shoe according to any one of claims 1 to 3, wherein the upper portion is bonded and fixed to the lower sole portion between the lower sole portion and the upper sole portion.

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