JPH0535686Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to bicycle shoes used primarily for riding bicycles for cycling races or triathlons.

BACKGROUND TECHNOLOGY Bicycle shoes used for riding bicycles for cycling or triathlon are:
Light weight and high rigidity of the sole are important for efficiently converting a person's leg strength into propulsive force.

However, the soles of conventional bicycle shoes of this type are
The only commonly used structures are those constructed by laminating many layers of leather, or by laminating hard plates and cushions or elastic materials, or by injection molding of synthetic resin.

Problems to be Solved by the Present Invention No matter how much effort is made, conventional bicycle shoes with soles made of the above-mentioned laminated structure or injection molded synthetic resin cannot achieve both the goals of reducing weight and increasing rigidity. Of course, it is also extremely difficult to suppress lateral twisting. By the way, when standing on a bicycle, the rider applies a diagonal load to the pedals while rocking his or her entire body from side to side, and if the shoes easily twist sideways during this process, leg strength will be reduced. Not only is this inefficient, but it also causes a lot of ankle fatigue, and there is a risk of ankle injury. Therefore, it is preferable to use shoes that do not twist laterally, as exemplified by mountain climbing boots and ski boots, and this point has become an issue to be solved. This point is an issue that needs to be resolved.

Means for Solving the Problems As a means for solving the problems of the prior art described above, bicycle shoes according to the present invention are made of lightweight materials such as honeycomb shapes, hard foam materials, or cork, as shown in the drawings. The shoe sole 2 is characterized in that the sole 2 is formed of a composite material made by covering and reinforcing a core material 3 with a covering 4 made of fiber-reinforced synthetic resin reinforced with carbon fibers, aramid fibers, or the like.

Function The lightweight core material 3, such as a honeycomb shape material, a hard foam material, or cork, is lightweight. Further, the reinforced synthetic resin covering 4 has high rigidity and is an extremely effective material for increasing the rigidity of the sole 2. Furthermore, since the fiber-reinforced synthetic resin covering 4 is also a very lightweight material, it is possible to make the sole 2 both lightweight and highly rigid.

Further, the reinforced synthetic resin covering 4 acts as a surface layer material that completely envelops and covers the lightweight core material 3 such as a honeycomb shape material, hard foam material, cork, etc., and also serves as a reinforcing surface material, thereby increasing the durability of the sole 2. height, especially to suppress lateral twisting.

Example Next, the illustrated embodiment of the present invention will be described.

The bicycle shoe shown in FIGS. 1 to 3 consists of a shoelace 1 and a sole 2 made of leather or cloth. The sole 2 is made of a composite material in which a lightweight core material 3 such as a honeycomb shape material, a hard foam material, or cork is covered and reinforced with a covering material 4 of fiber-reinforced synthetic resin reinforced by mixing carbon fiber or aramid fiber. It is made up of. A shoelace part 1 is integrated (fixed) to this shoe sole 2 by adhesive. A lightweight core material 3 such as a honeycomb shape material is formed on the side of the shoe sole 2 where the foot rests, that is, the upper part is shaped like the toe, the front foot, the arch, the heel, etc., and the sole of the shoe. It is formed in a shape that follows. Further, each shoe sole is formed into a desired thickness and shape by a covering 4 made of reinforced synthetic resin as a surface layer material.

In the figure, reference numeral 5 denotes a latch that is installed mainly on the front stepping part side of the bottom side of the sole 2 and is hooked to a bicycle pedal. Further, 10 in the figure is a recess 10 that is opened upward at a portion corresponding to the front treading part side on the upper surface side of the sole 2, and 6 in the figure is a through hole provided in the recess 10. and a bolt passed through the through hole of the latch fitting 5 that communicates with the through hole. In the figure, reference numeral 7 denotes a removable nut that is screwed into the bolt 6 to tighten and fix the latch 5 to the bottom surface of the sole 2. Reference numeral 11 in FIG. 2 is a cover piece that covers the head of the bolt 6. Further, in FIG. 2, reference numeral 12 is an insole that becomes the sole of a person's foot, and 13 is an insole that fills the space between the insole 12 and the sole 2.

Effects of the present invention As described above in detail in conjunction with the embodiments, the bicycle shoes according to this invention have a sole 2 that is extremely lightweight and has high rigidity, and also has a Since there is no twisting, the leg strength of the person riding the bicycle is not diminished, and the leg strength is efficiently converted into propulsive force, making it light and comfortable to use with less fatigue and no risk of injuring the ankles. can. Therefore, they are extremely excellent as riding shoes for bicycles used in cycling competitions or triathlons.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a bicycle shoe according to the present invention seen from slightly above, FIG. 2 is a sectional view mainly of the sole portion, and FIG. 3 is a bottom view of the shoe. 2...Sole, 3...Lightweight core material, 4...Reinforced synthetic resin covering.

Claims (1)

[Scope of utility model registration request] A bicycle shoe characterized by having a sole made of a composite material in which a lightweight core material such as a honeycomb profile, hard foam material, or cork is covered with a fiber-reinforced synthetic resin coating.