JP2001287685A - Caliper brake for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a caliper brake for a bicycle, having a mechanism for removing deposits on the rim front surface while sliding in friction. SOLUTION: In this caliper brake for a bicycle, a sliding and removing mechanism for removing deposits on the rim front surface while sliding in friction is integrally provided with a brake shoe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caliper brake for a bicycle having a mechanism for rubbing and removing extraneous matter on a rim surface.

[0002]

2. Description of the Related Art Conventionally, caliper brakes for bicycles are:
In general vehicles including light vehicles, it is used for front brake,
A brake shoe presses against both sides of the wheel rim to apply braking.

[0003]

The conventional caliper brake for a bicycle described in the section of the prior art described above can be used in actual running, especially when running on rainy weather, on muddy roads, on bad roads (roads containing moisture such as sand). Even on general pavement roads, mud and sand adhere to the rim surface and generate dirt. Then, mud and sand adhering during braking act as a wear agent to wear the shoe. Further, the adhered mud and sand serve as an abrasive to scratch the rim surface and impair the quality and appearance. In particular, in recent years, a lightweight aluminum rim has been adopted for the purpose of reducing the weight of a bicycle. However, since the aluminum surface has a low hardness, the aluminum rim is scratched and becomes a black stain, which cannot be easily removed by washing with water.

An object of the present invention is to eliminate the drawbacks of the conventional bicycle caliper brake.

[0005]

According to the present invention, there is provided a caliper brake for a bicycle, wherein a rubbing elimination mechanism for rubbing and removing extraneous matter on a rim surface is provided integrally with a brake shoe.

A rubbing elimination mechanism for rubbing and removing adhering matter on the rim surface may be attached to the brake shoe.

The rubbing elimination mechanism for rubbing and removing the deposits on the rim surface may be a brush.

The rubbing elimination mechanism for rubbing and removing the deposits on the rim surface may be a rubber blade.

The rubber blade may be provided integrally with the brake shoe body.

The rubbing elimination mechanism for rubbing and removing the deposits on the rim surface may be provided on the entrance side or the exit side of the brake shoe during rim braking.

A rubbing removal mechanism for removing the deposits on the rim surface at the entrance side of the brake shoe is provided at least separated by at least the height of the brake shoe and the brake shoe. The caliper brake for a bicycle according to claim 2, 3, or 4.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A brake shoe integrally provided with a brush-type sliding eliminator as a mechanism for rubbing and removing deposits on the rim surface is provided at each end of a left and right arm of a caliper brake for a bicycle. It becomes.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a bicycle caliper brake according to an embodiment of the present invention, which is provided with a mechanism for rubbing and removing deposits on a rim surface. As shown in FIG. Brake shoes 3, 3 integrally provided with a brush-type sliding eliminator 2 as a mechanism for rubbing and removing the deposits on the rim surface are provided at the respective ends of the left and right arms 1a, 1b in FIG.

As shown in FIG. 2, the brake shoe 3 provided integrally with the brush-type sliding eliminator 2 is provided with a brush fixing portion 3c at one end of a bottom seat frame 3b for fixing a brake shoe main body 3a. The brush body 2a is attached to the brush fixing portion 3c.
Are fixedly attached together. The brush body 2a may directly fix the bundle of filaments (formed by cutting a synthetic resin filament having a required wire diameter to the same width) to the brush fixing portion 3c,
After the base end of the bundle is fixed on a base (not shown),
The base piece may be fixed to the brush fixing portion 3c.

As shown in FIG. 3, the brush type sliding eliminator 2 has a tip 2a1 of a brush body 2a and a side face 4 of a rim 4.
a, 4a, the sliding surface 3a of the brake shoe body 3a
The required width is set higher than 1. Then, except during braking, the rim 4 is arranged so as to be spaced apart from the side surfaces 4a, 4a of the rim 4 and rub against the side surfaces 4a, 4a of the rim 4 prior to the sliding surface 3a1 of the brake shoe body 3a during braking. I have.

A brush-type sliding eliminator 5 shown in FIG. 4 as a mechanism for rubbing and removing deposits on the rim surface is an embodiment that is retrofitted to an existing brake shoe 6, and a brush is attached to one end of a support frame 7. A fixing portion 7a is provided to integrally fix the base end of the brush body 5a, and the other end is provided to a brake shoe mounting portion 7b having an opening 7b1, and a shoe mounting bolt 6a is fitted into the mounting hole 7b1, and a brake is provided. The rear surface of the shoe 6 is superposed on the rear surface of the shoe 6, and is fixed to each end of the left and right arms 1 a and 1 b of the bicycle caliper brake 1 together with the brake shoe 6. Brush body 5a and brush fixing portion 7
The structure described in the above section [0012] can be applied to the fixing structure a. The brush main body 2a and the brush main body 5a are made of soft resin or animal hair.

As shown in FIG. 5, a single brake shoe 9 integrally provided with a blade-type sliding / rubbing eliminator 8 as a mechanism for sliding and removing the deposits on the rim surface has a brake shoe body 9a fixed thereto. A blade fixing portion 9c is provided at one end of the bottom seat frame 9b to be fixed, and the base end of the blade body 8a is integrally fixed to the blade fixing portion 9c.

As shown in FIG. 6, the blade-type rubbing and eliminator 8 may be a blade body 8b provided integrally with a brake shoe body 9a. The required part of is thin-walled. The thin wall may be plate-shaped as shown, or may be triangular as in the blade body 8a, and may have a pointed tip.

The blade rubbing eliminator 8 is, like the brush type rubbing eliminator 2, a tip 8a of the blade body 8a.
1. The tip 8b1 of the blade body 8b is
a, 4a, the sliding surface 9a of the brake shoe body 9a
The required width is set higher than 1. When the brake is not applied, the rim 4 is arranged so as to be spaced apart from the side surfaces 4a and 4a of the rim 4 and rub against the side surfaces 4a and 4a of the rim 4 prior to the rubbing surface 9a1 of the brake shoe body 9a. Of course.

A blade-type sliding eliminator 10 shown in FIG. 7 as a mechanism for rubbing and removing deposits on the rim surface is an embodiment that is retrofitted to an existing brake shoe 6, and a brush is attached to one end of a support frame 11. A fixing portion 11a is provided to provide a blade body 10a.
And the other end thereof is provided in a brake shoe mounting portion 11b having an opening 11b1.
1, a shoe mounting bolt 6a is fitted and overlapped on the rear surface of the brake shoe 6, and is fixed together with the brake shoe 6 to the distal ends of the left and right arms 1a and 1b of the bicycle caliper brake 1.

The blade body 8a of the blade-type sliding eliminator 8 shown in FIG. 5 uses synthetic rubber for its material, and has excellent elasticity and abrasion resistance. As shown in FIG. 8, the tip is pointed, the left and right side surfaces 8a2, 8a2 are formed as inclined surfaces, and their base surfaces 8a3
The lateral grooves 8a4, 8a4 enter from the left and right at places of appropriate thickness,
Even if it is a triangular shape that can be bent left and right, FIG.
As shown in FIG. 10, even if the other part except the base 12a is a half-triangular blade body 12 having a half-shape,
As shown in FIG.
However, as shown in FIG. 11, the blade body 14 may be a mere flat plate. The blade main body 10a of the blade-type sliding eliminator 10 shown in FIG. 7 may be a blade main body having the same material and shape.

When the blade main body 8b shown in FIG. 6 is provided integrally with the brake main body 9a, both are formed of the same material, but the materials may be made different by two-stage molding.

FIG. 12 shows an embodiment in which the brush-type sliding eliminator 2 is arranged on the entrance side of the brake shoe 3. FIG.
Is an embodiment in which the brush-type rub remover 2 is disposed on the exit side of the brake shoe 3. Even if the brush-type sliding eliminator 5, the blade-type sliding eliminators 8, 10 and other sliding eliminators (not shown) are provided, the disposition position may be the inlet side of the brake shoe. , Or on the exit side.

As shown in FIG. 14, the brush body 2a of the brush-type rubbing eliminator 2 for removing the deposits on the rim surface at the entrance side of the brake shoe 3 is at least the same as the height H of the brake shoe 3. h or more, the brake shoe 3 does not interfere with the brush body 2a of the brush-type rubbing eliminator 2 during braking, so that water droplets, mud, sand and other deposits can be reliably removed. Can be eliminated. The brush body 5a of the brush-type rub remover 5, the blade body 8a and the blade body 8b of the blade-type rub remover 8, and the blade body 10a of the blade-type rub remover 10.
In addition, the brush body or the blade body of the sliding eliminator (not shown) is also arranged in consideration of technical matters (materials, intervals, heights, and the like of the brush body or the blade body and the brake shoe body).

[0025]

According to the present invention, there is provided a bicycle caliper brake provided with a mechanism for rubbing and removing deposits on a rim surface.
As described above, even if mud or sand adheres to the rim surface during traveling in rainy weather, the sliding and elimination mechanism always removes and cleans during braking, so that no dirt is generated. In addition, the mud and sand do not wear the shoe during braking, and the mud and sand do not scratch the rim surface as an abrasive and impair the quality and appearance. In particular, even in recent years, even a lightweight aluminum rim for the purpose of reducing the weight of a bicycle is not damaged and is always cleaned to maintain an aesthetic appearance.

In particular, since the operation of the rubbing elimination mechanism is limited during braking, there is no resistance during normal running and the vehicle can run smoothly. This prevents the brake performance from deteriorating due to sand and ensures reliable braking, which also contributes to driving safety.

In the case where the blade body is provided integrally with the brake shoe body, the manufacturing cost is almost the same as the conventional one, the brake braking performance is dramatically improved, and the quality of the rim is displayed and the aesthetic feeling is maintained by the cleaning effect. There is something.

The brush body of the brush-type sliding eliminator, the blade body of the blade-type sliding eliminator, and other brush bodies or blades of the sliding eliminator (not shown) for removing the deposit on the rim surface at the entrance side of the brake shoe. Even if it is in the main body, if it is arranged at least the same height or more than the height of the brake shoe, at the time of braking, the brake shoe and the brush body of the brush-type sliding eliminator, Water drops, mud, sand and other deposits can be reliably removed without interference between the blade body and the brush body or blade body of the sliding eliminator (not shown).

[Brief description of the drawings]

FIG. 1 shows a brake caliper brake according to the present invention in which a brake shoe with a brush-type sliding eliminator is disposed at each end of an arm as an embodiment of a mechanism for sliding and removing the deposits on the rim surface of the present invention. It is an external appearance perspective view.

FIG. 2 is a perspective view of a single brake shoe to which a brush-type sliding eliminator is integrally attached.

FIG. 3 is an explanatory plan view showing, with respect to a rim, a sliding surface of a brake shoe and a height of a brush-type sliding eliminator brush tip;

FIG. 4 is an external perspective view showing an embodiment in which a brush-type rub remover is attached to a brake shoe.

FIG. 5 is a perspective view of a single brake shoe to which a blade-type rub remover is integrally attached.

FIG. 6 is a perspective view showing an embodiment of a brake shoe alone showing an embodiment in which a blade body is provided integrally with a brake shoe body.

FIG. 7 is an external perspective view showing an embodiment in which a blade-type sliding rub remover is retrofitted to a brake shoe.

FIG. 8 is a cross-sectional view of an embodiment of a triangular blade body.

FIG. 9 is a cross-sectional view of an embodiment of a half-triangular blade main body in which the other part except the base is half-cut.

FIG. 10 is a cross-sectional view of an embodiment of a pointed flat blade body.

FIG. 11 is a cross-sectional view of an embodiment of a flat blade body.

FIG. 12 is a perspective view showing an embodiment in which a brush-type sliding eliminator is arranged on an entrance side of a brake shoe in a bicycle caliper brake arranged on a front fork of a bicycle.

FIG. 13 is a perspective view showing an embodiment in which a brush-type sliding eliminator is provided on an outlet side of a brake shoe in a bicycle caliper brake provided on a front fork of a bicycle.

FIG. 14 is an explanatory view for explaining an embodiment in which the brush-type sliding and rubbing remover for removing deposits on the rim surface at the entrance side of the brake shoe is provided at least separated by the height of the brake shoe and the height of the brake shoe; It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bicycle caliper brake 1a Left arm 1b Right arm 2 Brush type sliding eliminator 2a Brush body 2a1 Tip 3 Brake shoe 3a Brake shoe body 3a1 Sliding surface 3b Bottom seat frame 3c Brush fixing portion 4 Rim 4a Side surface 5 Brush type sliding friction Eliminator 5a Brush body 6 Brake shoe 6a Shoe mounting bolt 7 Support frame 7a Brush fixing part 7b Brake shoe mounting part 7b1 Mounting hole 8 Blade type scraper 8a Blade body 8a1 Tip 8b Blade body 8b1 Tip 9 Brake shoe 9a Brake shoe Main body 9a1 Sliding surface 9b Bottom seat frame 9c Blade fixing portion 10 Blade type sliding eliminator 10a Blade main body 10a1 Tip 11 Support frame 11a Brush fixing portion 11b Brake shoe mounting portion 11b1 Mounting hole 12 Half triangular blade main body 1 Blade body 14 of the peak of the flat plate-shaped blade body mere flat plate-shaped

Claims (7)

[Claims] 1. A caliper brake for a bicycle, comprising a sliding elimination mechanism integrally provided with a brake shoe for rubbing and removing adhering substances on a rim surface. 2. A caliper brake for a bicycle, characterized in that a sliding elimination mechanism for rubbing and removing extraneous matters on the rim surface is provided after the brake shoe. 3. The caliper brake for a bicycle according to claim 1, wherein the rubbing elimination mechanism for eliminating the deposits on the rim surface is a brush. 4. The caliper brake for a bicycle according to claim 1, wherein the sliding elimination mechanism for eliminating the deposit on the rim surface is a rubber blade. 5. The rubbing elimination mechanism for removing the deposits on the rim surface is provided on an entrance side or an exit side of a brake shoe during rim braking. The bicycle caliper brake according to claim 3 or 4. 6. The caliper brake according to claim 5, wherein the rubber blade is provided integrally with the brake shoe body. 7. A rubbing elimination mechanism for eliminating a substance adhering to a rim surface at an entrance side of a brake shoe is provided at least separated by at least the height of the brake shoe and the brake shoe. The bicycle caliper brake according to claim 2, claim 3, claim 4, or claim 5.