JPS5849906Y2 - caliper brake - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a side-pull caliper brake that applies braking by pressing contact pieces (brake shoes) made of rubber or the like against the rim of a wheel.

This ridge side pull caliper brake uses a spring to constantly bias two large and small arches so that the distance between them widens, and when the brake is operated, the brake wire is pulled and the distance between the arches is reduced against the spring, causing the wheel rim to It presses contact pieces provided on each arch.

Conventionally, this caliper brake needs to be in a state where the contact pieces can come into contact with the rim of the wheel from both the left and right sides when viewed from the front. It was difficult to maintain a constant spacing, and one of the left and right sides was narrower or wider than the other, making it easy to cause so-called one-sided contact or one-sided effect, in which only one contact piece on either side hits the rim during brake operation.

In order to prevent this phenomenon from occurring, a considerable level of skill is required, and the work is extremely labor-intensive.

Therefore, in this invention, the distance between the contact piece and the left and right sides of the wheel rim is
To provide a caliper brake which can be operated easily and almost in the same way, and can solve the phenomenon of one-sided contact and one-sided braking during brake operation.

Examples thereof will be explained below with reference to the drawings.

In Figures 1, 2, and 3, reference numeral 1 denotes a through bolt that passes through the frame, and fits and holds one end of a spring 2 that biases two arches in the center so that the distance between them increases. It has a large diameter part 5 with a cutout part 3 for engagement and a concavo-convex part 4 for engagement, and a large arch 6 and a small arch 7 in the threaded part of the front part are rotated by a lock nut 8 and a cap nut 9. Installed where possible.

Reference numeral 10 denotes a through-bolt rotating arm, which has a concave-convex portion 11 at one end that engages with the engaging concave-convex portion 4 of the through-bolt 1, and a nib portion 12 at the other end, so that it can be attached to the through-bolt 1 from the rear. inserted.

When the through-bolt 1 is attached to the frame, the rotating arm 10 engages with the through-bolt 1 at the concave and convex portions 4, 11, and rotates as a unit around the frame.

FIG. 3 is a front view showing the assembled caliper brake, where 13 is a rim and 14 is a contact piece.

FIG. 4, FIG. 5, and FIG. 6 show a through-bolt rotating arm 10' having a nib portion 12' at the end of the through-bolt 1.
are integrally molded or welded together, and when attached to the frame, by rotating the arm for rotating the through-bolt, the through-bolt also rotates at the same time.

With the above configuration, after installing the side-pull caliper brake on the frame and setting the brake wire, check the condition of the gap 15 between the wheel rim 13 and the contact piece 14.1 If the gap 15 is not uniform on the left and right, leave it as it is. By manually rotating the through-bolt rotating arm 10 or 10' in either the left or right direction with respect to the frame, the left and right elasticity of the spring 2 can be changed, and the rim 13 of the wheel can be changed when the brake is operated. The left and right contact pieces 14 can be brought into contact with each other at the same time.

As described above, the present invention allows adjustments to be easily made without the use of tools to prevent one-sided braking and one-sided braking, which are the drawbacks of side-pull caliper brakes.

[Brief explanation of drawings]

Figure 1 shows a side pull caliper in an embodiment of the present invention.
Figure 2 is a perspective view of the through-bolt, Figure 3 is an exploded perspective view of the brake, Figure 4 is a diagram showing how the brake is installed in another embodiment, and Figure 5 is the through-bolt rotation. FIG. 6 is a perspective view of the bolt integrally provided with the movable arm, and FIG. 6 is an exploded perspective view. DESCRIPTION OF SYMBOLS 1...Through bolt, 2...Spring, 3...Notch, 4...Uneven part, 5...
...Large diameter part, 6...Large arch, 7...
...Small arch, 10, 10'... Arm for rotating through bolt, 12, 12'... Nigiri part.

Claims (3)

[Scope of utility model registration request] (1) Two large and small arches are rotatably mounted, and a through bolt is fixed to the frame while holding one end of a spring that biases the two arches so that the distance between them increases, and this through bolt is fixed to the frame. A caliper brake comprising a through-bolt rotating arm for rotating the bolt relative to the frame. (2) Registration of a utility model in which the through-bolt has a notch for holding one end of the spring and a concave-convex portion for engagement, and the arm for rotating the through-bolt has a concave-convex portion that engages with the concave-convex portion of the through-bolt. A caliper brake according to claim 1. (3) The caliper brake according to claim 1, wherein the through-bolt rotating arm is provided integrally with the through-bolt.