JPH042870Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] A so-called cable holder is attached to the upper pipe of a bicycle frame to hold brake cables, etc., and the present invention is a fixing structure for this cable holder. It is related to.

[Summary of the invention] The invention enables the cable holder to be attached to its mounting surface by mechanical coupling,
This eliminates the need for the conventionally troublesome installation work by welding.

[Prior Art and Problems] A brake cable for a wire brake is attached to the upper pipe of a bicycle frame, but the brake cable is fixed by a band 20 as shown in FIG. 3, for example. There is something that has faded.

However, recently, the above-mentioned band 20 has become less and less used from a design point of view, and instead, a small diameter cylindrical band as shown in FIG. 4, which is fixed to the upper surface of the upper pipe 1 by welding, Cable holder 2 has come into use.

However, when the cable holder 2 is fixed by welding as described above, there is a problem in that it takes time and effort to attach the cable holder, and the manufacturing efficiency of the frame is poor.

This is because when the upper pipe 1 and the cable holder 2 are joined by welding, not only is the welding work itself troublesome, but also the finishing treatment of the welded part, etc., which is performed before the subsequent painting work, etc. This is because other incidental work is required.

[Problem] The present invention has a cable holder 2 that fits and holds cables such as wire brakes and attaches them to the frame of a bicycle. The object of the present invention is to enable the device to be attached to the section by mechanical connection.

[Means] The technical means of the present invention for solving the above problem is to form a fitting shaft 21 protruding from the outer circumferential wall of the holding tube 23 that holds the cable, and to insert the fitting shaft 21 near the base end of the fitting shaft 21. An elastic collar 22 with an arcuate cross section extending toward the tip of the shaft is extended, and the curvature of the inner circumference of the elastic collar 22 is made larger than the curvature of the outer circumference of the pipe constituting the bicycle frame. is the engagement hole 1 drilled in the pipe.
0 forcibly inserted.

[Effect] The above technical means works as follows.

The fitting shaft 21 of the cable holder 2 is inserted into the engagement hole 10 drilled in the pipe constituting the bicycle frame.
When the is forcibly inserted, these engagement holes 10 and the insertion shaft 2
1 engages in a locking state. Further, in this state, the elastic collar 22, which widens toward the tip of the insertion shaft 21 and has a larger curvature than the pipe of the bicycle frame, is in elastic contact with the pipe.
That is, since the curvature of the inner circumference of the elastic collar 22 is set to be larger than the curvature of the outer circumference of the pipe, the elastic collar 22 pushes the pipe, thereby causing the cable holder 2 to escape from the engagement hole 10. It will be forced in the direction.

However, since the engagement hole 10 and the insertion shaft 21 are forcibly fitted in a non-removable state, the cable holder 2 cannot escape from the engagement hole 10 and the elastic collar 2
2 remains biased in the escape direction. Further, since the elastic collar 22 has an arcuate cross section, it is attached so that its back side is along the outside of the cylindrical pipe of the bicycle, which is the mounting surface.

Therefore, the cable holder 2 is attached to the engagement hole 10 without wobbling, and is attached to the attachment surface by mechanical coupling.

[Effects] Since the cable holder 2 is attached to its attachment surface by mechanical connection, there is no need for troublesome welding work, and there is no need to worry about spoiling the appearance as with the above-mentioned cable holder using a band.

In the case of the conventional type in which the cable holder 2 is fixed by welding, the cable holder must be attached before the frame is painted. On the other hand, in the case of the cable holder of the present invention, the cable holder can be attached by simply drilling an engagement hole in the mounting surface thereof, so that the cable holder can be attached even after the frame is finished. Therefore, even if the frame is used to fix the brake cable using the band mentioned above, it can be easily modified to a new type of frame that uses a cylindrical cable holder by simply drilling an engagement hole in the frame. There are advantages that can be achieved.

The elastic flange 22 has an arc-shaped cross section, and since the pipe of the bicycle frame, which is the mounting surface, also has an arc-shaped cross section, the elastic flange 22 has an arc-shaped cross section. It is installed along the line.

Therefore, the cable holder 2 does not rotate relative to the mounting surface, and twisting of the cable caused by this can be prevented.

Since the elastic flange 22 is an elastic body that spreads toward the tip of the insertion shaft 21, even if there is some variation in the thickness of the upper pipe 1 of the frame, the elasticity of the elastic flange 22 and the upper pipe 1 of the frame By engaging with the engagement portion at the tip of the insertion shaft 21, the cable holder 2 can be reliably fixed to the upper pipe 1 of the frame.

[Example] Next, an example of the present invention described above will be described in detail with reference to the drawings.

Cable holder 2 used in the embodiment of the present invention
The whole is integrally formed of an elastic material such as synthetic resin. and the cable holder 2
As shown in FIG. 2, the upper holding cylinder 23,
A fitting shaft 21 protruding downward, and a fitting shaft 2
The elastic collar 22 is disposed at the base of the upper pipe 1 in a downwardly expanding manner and has an arcuate cross section and a curvature of the inner periphery set to be larger than the curvature of the outer periphery of the upper pipe 1. Further, a slit 24 is cut in the upper surface of the holding cylinder 23.

On the other hand, there is an engagement hole 1 on the upper surface of the upper pipe 1 of the frame.
0 is bored, and as shown in FIG. 1, the cable holder 2 is attached to the engagement hole 10.

When attaching the cable holder 2 to the engagement hole 10, the insertion shaft 21 is forcibly inserted into the engagement hole 10.
Then, as shown in FIG. 1, the cable holder 2 has an elastic collar 22 having an arc-shaped cross section, and the curvature of its inner circumference is set larger than the outer circumference curvature of the upper pipe 1 of the frame. The fitting shaft 21 and the engagement hole 1 are aligned properly with the pipe 1.
0, it is stably fixed without wobbling. Also, cable holder 2
Since the attachment state of the cable 3 is secure and it does not rotate around the insertion shaft 21, stress such as twisting or bending is not applied to the cable 3 held in the holding tube 23, and damage to the cable 3 can be prevented.

After that, if the brake cable 3 is forcibly inserted into the slit 24 of the fixed cable holder 2, the brake cable 3 will be held by the cable holder 2, as shown by the imaginary line in Fig. 1. .

In the above embodiment, since the slit 24 is cut in the upper surface of the holding cylinder 23, the brake cable 3 can be fitted from the slit 24.
The brake cable 3 can be easily attached compared to the case where the slit 24 is not provided.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a sectional perspective view of a cable holder 2, and Figs. 3 and 4 are explanatory views of a conventional example. ... Brake cable, 10 ... Engagement hole, 21 ... Fitting shaft, 22 ...
...Elastic tsuba.

Claims (1)

[Scope of utility model registration request] In a cable holder 2 that fits and holds a cable such as a wire brake and is attached to a bicycle frame, a fitting shaft 21 is formed that protrudes from the outer peripheral wall of a holding tube 23 that holds the cable, and a base end of this fitting shaft 21 is formed. An elastic collar 22 having an arcuate cross section extending toward the distal end of the fitting shaft is protruded from the vicinity, and the curvature of the inner circumference of the elastic collar 22 is made larger than the curvature of the outer circumference of the pipe constituting the bicycle frame. A cable holder in which the fitting shaft 21 is forcibly fitted into the engagement hole 10 bored in the pipe.