JP2528929Y2 - Bicycle brake lever mounting device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for mounting a bicycle brake lever to a steering wheel.

[0002]

2. Description of the Related Art A bicycle brake lever is normally pivotally supported by a bracket, and the bracket is mounted on a bicycle handle using a mounting band.

Conventionally, as a mounting device for mounting the mounting band to the bracket so that the mounting band can be tightened, conventionally, a screw hole member is fitted and fixed to the base of the mounting band, a washer piece is further mounted in the bracket, and the bracket is tightened from below. While inserting the screw into the washer piece, screw the tip of the tightening screw into the screw hole member,
A structure in which the mounting band is tightened and fixed to a handle by pulling the mounting band into a bracket is known (for example, see Japanese Utility Model Laid-Open No. 62-203794).

[0004]

In this type of brake lever mounting device, the bracket is formed by sheet metal processing, that is, by pressing a metal plate and punching it into a predetermined shape, and then bending the metal plate. A piece is inserted into the bracket, and the piece is engaged with a projection projecting into the bracket, or a washer piece is inserted into a rectangular opening provided on both sides of the bracket to be engaged.

For this reason, it is necessary to separately process a washer piece having high dimensional accuracy, and it is difficult to insert a small washer piece into a bracket and lock it at a predetermined position, and the assembling workability is poor. There were challenges.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and does not require a separate washer piece, is simple in processing, and can be mounted easily. It is intended to provide a device.

[0007]

For this purpose, a bicycle brake lever mounting device according to the present invention is formed by bending a metal plate to form a bracket having a front portion and both side portions, and the brake lever is provided in the bracket. The base is pivotally supported so as to be swingable, and a mounting band having a screw hole member in the lower portion is disposed by inserting the lower portion into the bracket from the upper portion, and the mounting band is pulled into the bracket by a tightening screw to remove the mounting band. In a mounting device for a bicycle brake lever that is fastened and fixed to a handle, a part of a front portion of a bracket is cut inward and a hole is formed to form a fastening washer portion, and the inside of both side portions of the bracket is formed. The bracket has a projection that is in contact with the upper edge of the tightening washer. A tightening screw is inserted into the bracket from below through the hole of the tightening washer, and the tip of the tightening screw is Part is configured screwed into the screw hole members in the lower bracket.

[0008]

When the brake lever is mounted on the handle, pass the handle through the mounting band and turn the tightening screw in the bracket. By this operation, the mounting band having the screw hole member screwed into the tip of the tightening screw is pulled into the bracket, the outer peripheral portion of the handle contacts the upper portion of the bracket, and the bracket is tightened and fixed to the handle. .

In this state, most of the tightening force of the tightening screw is applied to the tightening washer, but the tightening washer is integrated with the front surface of the bracket and abuts on the inner protrusion. Therefore, the clamping force can be held firmly without deformation.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

As shown in the side view of FIG. 1 and the exploded perspective view of FIG. 2, 1 is a brake lever, 2 is a bracket for pivotally supporting the brake lever 1, and 3 is a mounting band for mounting the bracket 2 to a handle. . A screw hole member 3a having a screw hole is attached to a lower portion of the attachment band 3 so as to be inserted into the long holes on both sides.

The bracket 2 is formed by bending a metal plate into a substantially U-shape, includes a front surface 2a and side surfaces 2b following both sides thereof, and has a shape in which an upper portion, a rear portion, and a bottom portion are opened. A hole 2c through which the shaft 4 that supports the brake lever 1 is inserted is formed in the side surface portions 2b on both sides, and a concave portion 2d into which the mounting band 3 is inserted is formed above the hole 2c. Further, projections 6 are provided on both sides of the inside of the side surface portion 2b in order to support a fastening washer portion 5 for fastening the mounting band 3.

A locking hole 7 for locking a brake wire is provided at a lower portion of the front surface portion 2a, and a screw hole for screwing an adjusting screw 10 for adjusting a swing range of the brake lever 1 is provided thereon. 9 are provided.

The fastening washer portion 5 is formed by bending a part of the front surface portion 2a inward and substantially horizontally, and an opening 8 is formed in the front surface portion 2a above the fastening washer portion 5 for this purpose.

Such a bracket 2 can be easily formed by a step of sequentially pressing a metal plate, that is, a progressive pressing step.

That is, in the progressive press step, first, a steel plate is punched into a predetermined plane shape in which the front surface portion 2a and both side surface portions 2b are continuous, and at the same time, the hole 2c, the locking hole 7 and the screw hole 9 are formed. The protrusions 6 are formed on both sides of the portion 2b so as to be pushed from the outside to the inside.

Next, a gate-shaped cut is made in a part of the front part 2a, and a hole 5a for a tightening screw 11 is formed in that part, and the part is bent inward at a substantially right angle and tightened. The washer 5 is formed. Then, both sides of the front part 2a, that is, both side parts 2b are bent inward at a substantially right angle, and the both side parts 2b
So that the clamping washer portion 5 is sandwiched between the insides of the holes. At this time, the protrusions 6 on the inner sides of the both side surfaces come into contact with the upper surface edge of the fastening washer 5.

The base of the brake lever 1 is inserted into the bracket 2 thus formed.
The shaft 4 is inserted into the hole 2c from the outside, the end of the shaft 4 is caulked, and the brake lever 1 is swingably mounted.
Further, the adjusting screw 10 with the coil spring fitted externally is provided in the screw hole 9.
The adjustment screw 10 has its tip abutted on the front portion of the brake lever 1 to adjust the open position of the brake lever 1.

The mounting band 3 is arranged so that its lower part can be inserted into the inside from the recess 2d on the bracket, the tightening screw 11 is inserted from below, and is inserted through the hole 5a of the tightening washer 5, and further tightened. The tip of the attached screw 11 is screwed into the screw hole of the screw hole member 3a of the mounting hand 3 and assembled. At this time, since the state of the lower part of the mounting band 3 and the like can be seen through the opening 8 of the front surface 2a, the tip of the tightening screw 11 can be easily screwed into the screw hole of the screw hole member 3a.

Further, a cover 15 made of a synthetic resin is put on the outside of the bracket 2 and the mounting band 3 as shown in FIG. The cover 15, the bracket 2, the mounting band 3, the adjusting screw 10, and the like are covered, and the appearance of the lever mounting portion is improved.

In the brake lever mounting apparatus thus constructed, the handle 16 is inserted into the mounting belt 3 and the tightening screw 11 in the bracket 2 is turned, as shown in FIG. By this operation, the mounting band 3 having the screw hole member 3a screwed into the tip of the tightening screw 11 is pulled into the bracket 2, and the outer peripheral portion of the handle 16 strongly contacts the upper portion of the bracket 2, and the bracket 2 is moved. It is fastened and fixed to the handle 16.

In this state, most of the tightening force of the tightening screw 11 is applied to the tightening washer 5, but the tightening washer 5 is integrated with the front surface 2a of the bracket 2, and The projection 6 is abutted and locked, so that the clamping force can be firmly held without deformation.

[0023]

As described above, according to the bicycle brake lever mounting apparatus of the present invention, a part of the front surface of the bracket is cut inward and a hole is formed so that the fastening washer is formed. A projection is formed inside the both side surfaces of the bracket to contact the upper edge of the tightening washer, and a tightening screw is inserted into the bracket from below through the hole of the tightening washer, and tightened. Since the tip of the screw is configured to be screwed into the screw hole member at the bottom of the bracket, it is not necessary to separately process the washer pieces as in the conventional case, so that the number of processing steps and the number of parts can be reduced, Since there is no need to insert the washer into the bracket and lock it in place,
Workability in the manufacturing process is improved. Furthermore, since the fastening washer is formed integrally by bending a part of the front surface of the bracket, the fastening washer is strong and can maintain the fastening force without being deformed.

[Brief description of the drawings]

FIG. 1 is a side view of a brake lever mounting device.

FIG. 2 is an exploded perspective view of the attachment device.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a perspective view of a cover.

FIG. 6 is a cross-sectional view of the brake lever mounted state.

[Explanation of symbols]

1-brake lever, 2-bracket, 2a-front part,
2b-side surface portion, 3-mounting band, 3a-screw hole member, 4
-Shaft, 5-tightening washer, 5a-hole, 6-projection, 11-tightening screw.

Claims (1)

(57) [Scope of request for utility model registration] A bracket having a front surface and both side surfaces formed by bending a metal plate, a base of a brake lever is pivotably supported in the bracket and a screw hole member is provided at a lower portion. A mounting device for a bicycle brake lever, wherein a band is disposed in the bracket with the lower portion inserted from above, and the mounting band is tightened and fixed to a handle by pulling the mounting band into the bracket with a tightening screw. In the above, a part of the front surface of the bracket is cut inward and a hole is drilled to form a fastening washer portion, and inside the both side portions of the bracket, an upper edge of the fastening washer portion is formed. A contacting projection is formed, a tightening screw is inserted into the bracket from below through a hole of the tightening washer, and a tip of the tightening screw is screwed into a screw hole member at a lower portion of the bracket. Mounting device for a bicycle brake lever, characterized in that they are.