JPS5913367Y2 - Bicycle brake cable terminal holding device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an end holding device for a bicycle brake cable.

In general, in the case of bicycle brake cables, the operating force for the inner wire is very small because it relies on the hand's grip on the brake lever to which it is attached.Therefore, the operating force for the inner wire is very small, as it is due to internal friction between the inner wire and the outer tube at the curved part of the cable. In order to reduce resistance as much as possible, inner wires covered with a liner with good lubricity have come to be used.

In order to prevent this liner from being pulled out from the end of the cable during use, in the conventional type, as shown in Figure 1, a cylindrical outer cap b is attached to the end of the outer tube a with an arcuate diameter reduced end. Wedge this cap b
A tubular top liner C has a flange piece held at the tip of the cap, and the end of the liner e through which the inner wire d is inserted is prevented from coming off, and the outer periphery of the cap b has a front shaft cylinder through which the inner wire d is inserted. A stepped cap f consisting of a rear shaft cylinder that is fitted onto the outer periphery of the outer cap b is attached to the outer cap b.

As a result, the number of parts increases, and their connections tend to become loose, and the liner often slips out of the stepped cap.Also, since the inner wire is bent at the edge of the stepped cap, its frictional resistance increases, causing the wire to become loose. There was an inconvenience that the operating force was weakened.

The present invention was devised to improve such inconveniences, and it is possible to completely prevent the liner from being removed, reduce the number of assembly parts, and facilitate the assembly. To provide a bicycle brake cable terminal holding device with reduced frictional resistance.

To explain this with respect to the embodiment shown in FIG. 2, 1 is an outer tube, 2 is an inner wire, and 3 is a liner. At the end of the outer tube 1, there is a guide tube 4a from which the inner wire 2 is led out, and an outer tube 1. A stepped inner cap 4 made of synthetic resin is fitted, and the stepped inner cap 4 is made of a synthetic resin and has a receiving surface 4b that is fitted onto the outer periphery of the liner 3 and has a receiving surface 4b that supports the end of the liner 3. It is covered with a metal stepped exterior cap 5 consisting of the shaft cylinder 5a with an open tip 4a and the rear shaft cylinder 5b which is fitted and locked into the fitting tube 4C.

In this way, according to the present invention, the end of the outer tube 1 has a stepped inner cap 4 made of synthetic resin that is fitted on the outer periphery, and a stepped outer cap 5 made of metal that is covered with the outer periphery. Since these caps 4 and 5 can be freely inserted and removed from the terminal of the outer tube 1,
The length of the outer tube 1 can be easily adjusted, and since the inner cap 4 has a receiving surface 4b that supports the end of the liner, the liner cannot be pulled out, and its guide tube 4a is located at the front of the outer cap 5. Because it opens at the tip of the shaft tube 5a, even when the inner wire 2 is led out from the cap in a curved manner, its frictional resistance is reduced by the guide tube 4a, allowing it to slide smoothly and without weakening the operating force of the wire. has.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a conventional example, and FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention. 1... Outer tube, 2... Inner wire, 3... Liner, 4... Stepped interior cap, 4a
... Guide tube, 4b... Reception surface, 4C... Fitting tube, 5
...Stepped exterior cap, 5a...Front shaft cylinder, 5b.
... Rear shaft tube.

Claims (1)

[Scope of utility model registration request] The inner wire 2 is inserted into the outer tube 1 via the synthetic resin liner 3, and a guide tube 4a for leading out the inner wire 2 is inserted into the outer circumference of the outer tube 1. The stepped inner cap 4 made of synthetic resin is fitted, and the stepped inner cap 4 is made of a fitting tube 4C having a receiving surface 4b that is stopped and supports the end of the liner 3, and the guide tube 4a is fitted on the outer periphery of the stepped inner cap 4. The front shaft cylinder 5a whose tip is open and the fitting cylinder 4
An end holding device for a bicycle brake cable, characterized in that it is covered with a metal stepped exterior cap 5 consisting of a rear shaft cylinder 5b which is fitted into and secured to a rear shaft cylinder 5b.