JPH0249117Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a side-pull type caliper brake.

[Prior art and its problems]

As shown in FIG. 1, the side-pull type caliper brake has a C-shaped arm 10 and a Y-shaped arm 9.
is supported by a pivot shaft 11, and both arms are urged to expand by a spring 13, and a brake shoe 12 is attached to the tip of each arm. On the other hand, a lever 3 is rotatably attached to the handle 2 by a lever mount 1, and the lever mount 1 and the action part 15 of the Y-shaped arm 9 are connected by an outer tube 5. and C
The operating portion 15 of the letter-shaped arm 10 is connected to the inner wire 6 inserted through the outer cylinder 5. When the lever 3 is grasped and rotated, the inner wire 6 is pulled and both arms rotate against the biasing force of the spring 13, and the brake shoe 12
presses the rim 18, and the brake is applied. In addition,
Depending on the type of vehicle, the outer tube 5 may be connected to the working part 15 of the C-shaped arm 10 from below, and the inner wire 6 may be connected to the working part 15 of the Y-shaped arm 9.

Here, one end of the inner wire 6 is connected to the action part 1 by a special bolt 17 having a complicated structure.
5, but this fixing operation is quite complicated, and in the unlikely event that this part comes off while driving and the brakes become inoperable, it must be firmly fixed.

By the way, recently, bicycles are not always assembled at the manufacturer, but are often shipped as parts and assembled at places that do not have the necessary assembly technology and equipment. Therefore, it is required that the inner wire 6 be fixed to the action portion 15 in a reliable and easy manner.

[Purpose of invention]

Therefore, the present invention has developed a side puller that can securely and easily fix the inner wire to the working part of a C-shaped arm or a Y-shaped arm, even in places that do not have complete assembly technology or assembly equipment. The purpose is to provide type caliper brakes.

[Structure of the idea]

The structure of the present invention is that a Y-shaped arm and a C-shaped arm are pivotally supported by a pivot shaft, and when the brake is operated, an inner wire inserted through the outer tube is pulled and both arms are rotated. In side-pull type caliper brakes where the brake shoe attached to the tip of the arm pinches the rim, a cylindrical or spherical locking device is fixed to the tip of the inner wire protruding from the outer tube, and the end of the outer tube is is connected to the action part of one arm, an inner locking step is formed in the middle of the center hole of the support screw, and a cutout is provided on the peripheral wall of the support screw through which the inner wire can pass through. This device is characterized in that the inner wire is fitted into the center hole, the locking tool is engaged with the inner locking stage, and the support screw is screwed into the operating portion of the other arm.

〔Example〕

The present invention will be specifically described below based on embodiments shown in the drawings.

In FIG. 2, an inner wire 6 protrudes from the end of the outer tube 5, and a locking tool 7 is fixed to the tip of the inner wire 6. This locking tool 7 has a cylindrical shape that is slightly thicker than the diameter of the inner wire 6. The end of the outer cylinder 5 is fitted into the inner hole of the connecting screw 8 and comes into contact with the stepped portion thereof, and a position adjustment nut 81 is screwed onto the threaded portion on the front outer periphery of the connecting screw 8. A cut 82 through which the inner wire 6 can pass is formed in the peripheral wall of the connecting screw 8 and the position adjustment nut 81. The inner wire 6 is fitted through the cut 82 and inserted into the inner hole of the connecting screw 8. Ru. Connecting sleeve 4
has a flange 41 and is screwed onto the connecting screw 8,
The screwing position is determined by contacting the position adjustment nut 81. A connector 16 having a hole 18 is fixed to the action part 15 of the Y-shaped arm 9, and when the sleeve 4 is fitted into the hole 18, the collar 41 is inserted into the connector as shown in FIG. 16
The outer cylinder 5 is connected to the action part 15.

Next, an L-shaped support plate 17 having a screw hole 19 is fixed to the action part 15 of the C-shaped arm 10.
A support screw 20 shown in FIG. 3 is screwed into this screw hole 19. This support screw 20 has a center hole 21, but an inner locking stage 22 is formed in the middle part thereof, as shown in FIG. 5, and the locking tool 7 engages with this inner locking stage 22. It's becoming possible. A position adjustment nut 81 is also screwed onto this support screw 20.
A cut 23 through which the inner wire 6 can pass is formed in the peripheral wall of the wire.

To assemble these, the tip of the inner wire 6 in the state shown in FIG. 2 is inserted into the hole 18 from above the connector 16, and the sleeve 4 is screwed into the hole 18. Then, the tip of the inner wire 6 is further inserted into the screw hole 19 of the support plate 17. next,
The support screw 20 and the cut 23 in the peripheral wall of the position adjustment nut 81 are aligned in phase, the inner wire 6 is fitted, and the support screw 20 is screwed into the hole 19 of the support plate 17. Then, when the inner wire 6 is pulled from the lever 3 side, the locking tool 7 engages with the locking inner stage 22, as shown in FIG.

In this way, since the locking tool 7 is engaged with the locking inner stage 22 formed in the middle part of the center hole 21, the locking tool 7 will not come off from the support screw 20, and once fixed, it will not run. There is no need to worry about it falling out, ensuring safety. The inner wire 6 can be fixed by simply fitting it into the cut 23, so the work is very simple.

In addition, in this embodiment, the inner wire 6 is
Although the inner wire 6 is fixed to the action part 15 of the Y-shaped arm 10, depending on the vehicle model, the inner wire 6 may be attached to the Y-shaped arm 1.
As mentioned above, it may become stuck to the action part 15 of 0.

[Effect of idea]

As explained above, in the side-pull caliper brake of the present invention, a cylindrical locking device is fixed to the tip of the inner wire protruding from the outer tube, and the end of the outer tube is connected to the operating part of one arm. A locking inner stage is formed in the middle of the center hole of the support screw, and a cut through which the inner wire can pass is provided on the peripheral wall of the support screw, and the inner wire is inserted into the center hole through this cut and engaged. It is characterized in that the stop is engaged with the inner stage of the lock, and this support screw is screwed into the action part of the other arm.
A side-pull type caliper brake that allows the inner wire to be securely and easily fixed to the working part of the C-shaped arm or Y-shaped arm even in locations that do not have complete assembly technology or equipment. can do.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conventional example, FIGS. 2, 3, and 4 are perspective views of an embodiment of the present invention, and FIG. 5 is a sectional view of an assembled state. 1... Lever fitting, 3... Lever, 4... Connection sleeve, 5... Outer tube, 6... Inner wire, 7... Locking tool, 8... Connection screw, 9...
...Y-shaped arm, 10... C-shaped arm, 11...
...Pivot axis, 12...Brake shoe, 15...
...Action part, 16... Connector, 17... Support plate, 1
9... Screw hole, 20... Support screw, 21... Center hole, 22... Locking inner stage, 23... Cut, 81...
...Position adjustment nut.

Claims (1)

[Scope of Claim for Utility Model Registration] A Y-shaped arm 9 and a C-shaped arm 10 are pivotally supported by a pivot shaft 11, and when the brake is operated, the inner wire 6 inserted into the outer tube 5 is pulled and the two are pulled together. In a side-pull type caliper brake in which the arms are rotated and the brake shoes 12 attached to the tips of both arms pinch the rim 18, the inner wire 6 protrudes from the outer cylinder 5.
A cylindrical or spherical locking tool 7 is fixed to the tip of the
The end of the outer cylinder 5 is connected to the action part 15 of one arm.
A locking inner step 22 is formed in the middle of the center hole 21 of the support screw 20, and the support screw 20
A cut 23 through which the inner wire 6 can pass is provided in the peripheral wall of the support screw. 20 is screwed onto the action part 15 of the other arm.