JPH042872Y2 - - Google Patents

Description

[Detailed explanation of the invention] Purpose of the invention [Industrial field of application] This invention is a suspension wire that receives the front brake suspension wire (arch wire) for bicycles, especially mountain cycles and other all-terrain bicycles. This invention relates to an improvement in a hanging member.

[Conventional technology]

Mountain cycles and other all-terrain bicycles often use cantilever brakes. A cantilever type brake has two cantilever bodies with brake shoes on the inside that are each pivoted on both forks, a hanging wire is strung between the two bodies, and the center of the hanging wire is connected to the brake wire from the brake lever. It is suspended.

The reason why cantilever brakes are often used on all-terrain bicycles is that they have a simple structure and are compact.
This is because it has features such as high rigidity and easy attachment and detachment of thick wheels.

By the way, if the brakes are operated many times, the inner wire of the brake wire will gradually wear out, and the brake wire may break when the brake is applied with strong force while driving through fields, mountains, etc. Then, the above-mentioned suspension wire, which had been suspended by the brake wire, began to hang down over the front wheel. Since the tire of an all-terrain bicycle has a large uneven tread on its outer circumference, the hanging wire mentioned above gets caught on the uneven tread. As a result, serious problems often occurred, such as the front wheel suddenly not being able to rotate, causing the bicycle and the bicycle to fall, or the front wheel to be damaged or the suspension wire to be severed.

Conventionally, in order to prevent the brake wire from cutting and the hanging wire from hanging down, for example, as shown in FIG. A hanging wire hanging member A' having a long horizontal portion in an L shape and having a spatula-shaped portion 12' at the front end was fixed to the hole 10' by tightening with a bolt 11'.

[The problem that the idea aims to solve]

The conventional hanging wire hanging member A' is fixed to the female threaded hole 10' of the hawk crown portion 1' by tightening with a bolt 11' as described above. Therefore, even though it has a round hole, it cannot be attached to the hawk crown portion 1' which does not have a female threaded hole 10'. In addition, since it is simply attached with bolts 11', the attachment is not strong, and on bicycles such as all-terrain bicycles that are subject to a lot of vibration when riding in fields and mountains, bolts 11' may loosen and the latching member A' may easily come off. I'm worried.

On the other hand, the hanging member A' is an L-shaped vertical part 1.
3' is attached to the hawk crown,
The spatula-shaped portion 12' at the front end is located at a slightly lower position than the female threaded hole 10'. Then, when the brake wire was cut and the suspension wire 7' was about to hang down,
Even if it is hung by the spatula-shaped portion 12', the lower end of the hanging wire 7' may hang down to the position of the front wheel and may become caught on the tread.

Furthermore, the spatula-shaped portion 1 at the front end of the latching member A'
There were problems such as the possibility that 2' could fall under the category of ``protrusions'' under bicycle safety standards.

The present invention aims to solve the above-mentioned problems of conventional hanging wire hanging members.

In other words, the purpose of the present invention is to securely attach and fix the wire to the hawk crown so that it does not easily fall off from the hawk crown, and to place the hanging wire hooking part at a higher position than before so that the hooked wire can be attached to the front wheel. A bicycle front brake suspension that prevents it from getting caught on the tread, and can be installed even if there is no female thread as long as there is a round hole in the hawk crown, and a mudguard plate can also be attached if necessary. An object of the present invention is to provide a wire hanging member.

Structure of the invention [Means for solving the problem] The bicycle front brake suspension wire latching member A' according to the present invention consists of a latching member main body a and a mounting nut b to the hawk crown portion 1. The hanging member main body a is rod-shaped and has a length approximately twice or more than the outer diameter of the hawk crown part 1, and its front half is used as a hanging wire latching part 2 that projects forward of the hawk crown part 1. , a part 3 for preventing the suspension wire from falling off that protrudes upward is formed at the front end part, a part 4 for contacting the front surface of the hawk crown part 1 is formed in the middle part, and a rear part from the corresponding contact part 4 is connected to the hawk. As the penetration part 5 to the crown part 1, the length of the penetration part 5 is longer than the outer diameter of the hawk crown 1, and at least near the rear end, there is a mounting male thread into which the mounting nut b can be screwed. 6 is formed.

In the above configuration, the front end of the hanging wire fall prevention part 3 may be formed into a spherical or flange shape (see Figures 1 and 2), but may also be bent upward (see Figure 3). reference). Note that it is preferable that the drop-off prevention portion 3 is rounded.

The shape of the abutting part 4 in the middle part is similar to that of the mounting nut b.
It is desirable to have a shape that allows a spanner to be hooked to the side circumference to prevent rotation when tightening (second
(see figure). However, if a hexagonal hole into which a rod wrench can be engaged is formed in the front end, the side circumferential portion of the abutment portion 4 may be simply round (see FIG. 4).

Further, the corresponding contact portion 4 may be formed integrally with the latching member main body a (see Fig. 1, Fig. 2, Fig. 4).
(see figure), a male screw part 6 may be formed from the middle part to the rear part, and an intermediate nut 14 may be screwed therein as the abutting part 4 (see figure 3).

In addition, the length of the hanging wire hanging part 2 in the front half of the hanging member main body a, and the penetration part 5 in the rear half of the hanging member main body a.
The length of the holder is preferably large, medium, small, etc. depending on the type of bicycle or hawk crown part 1.

In the figure, 8 indicates a front round hole, and 9 indicates a rear round hole.

[Effect]

i The hanging wire hanging member A according to the present invention,
When installing to the hawk crown part 1, first insert the penetrating part 5 in the rear half of the latching member main body a from which the mounting nut b has been removed from the front round hole 8 for attaching the front brake of the hawk crown part 1 to the rear round hole. Penetrate to 9. With this, the abutment part 4 of the intermediate part of the latching member main body a is attached to the hawk crown part 1.
A male threaded portion 6 that is in contact with the front surface of the hawk crown portion 1 and closer to the rear end portion protrudes rearward from the rear round hole 9 of the hawk crown portion 1.

Therefore, the mounting nut b is screwed onto the protruding male screw part 6, and the mounting nut b is tightened and fixed so that the hawk crown part 1 is sandwiched between the abutting part 4 of the intermediate part and the mounting nut b. Bye.

In addition, in the case where an intermediate nut is threaded as the abutting part 4, the length of the front hanging wire hanging part 2 and the length of the rear hanging wire hanging part 2 depend on the bicycle to which the hanging wire hanging member A according to the present invention is installed. The length of the penetration portion 5 may be adjusted to an appropriate length.

If the brake wire is cut while riding a bicycle equipped with the suspension wire hanging member A according to the present invention, the suspension wire 7 of the cantilever brake will begin to hang down. However, since the hanging wire hanging part 3 on the front half of the hanging member main body a protrudes forward of the hawk crown part 1, the hanging wire hanging part 2 hangs the hanging wire 7, and the front end part The suspension wire drop-off prevention section 3 prevents the suspension wire 7 from falling off.

Moreover, unlike the conventional L-shaped part, the hanging wire hanging part 2 is located at a slightly higher position, so the lower end of the hanging wire 7 does not reach the front wheel, and is therefore pulled by the tread. Prevents getting caught.

Note that the hanging wire hanging member A according to the present invention is attached to the hawk crown part 1 without using bolts as described above.
If round holes are formed on the front and rear sides, it can be easily installed without having to cut the female threads.

Further, the hanging wire hooking member A has a penetrating portion 5 at the rear half thereof penetrated through the hawk crown portion 1, and is tightened with a mounting nut b. Therefore, even if the mounting nut b should become loose, as long as the penetrating portion 5 penetrates the hawk crown portion 1, the latching member main body a will not fall off immediately, so it is safe.

Furthermore, when it is desired to attach a mudguard plate to a bicycle provided with the hanging wire hooking member A, the mudguard plate is locked to the male screw part 6 protruding from the rear side of the hawk crown part 1, Just tighten it with mounting nut b.

〔Example〕

What is shown in Fig. 1, Fig. 2, and Fig. 4 is the part 3 for preventing the hanging wire from falling off at the front end of the main body a of the hanging member.
The contact portion 4 at the intermediate portion is integrally formed, and the male screw portion 6 is formed only near the rear end.

In the one shown in FIG. 3, a male threaded portion 6 is formed from the intermediate portion to the rear end of the latching member main body a, and an intermediate nut 14 is screwed thereon as the abutting portion 4.

In Fig. 4, in order to prevent the mounting nut b from rotating when tightening, a wrench hook part is not formed in the abutting part 4 at the middle part, and a hexagonal wrench is provided in the hanging wire fall prevention part 3 at the front end. A hexagonal hole 15 for engagement is formed.

Although not shown in the drawings, a reflective object such as a reflector may be provided on the suspension wire drop-off prevention section 3 at the front end.

Effects of the Invention As is clear from the above, the hanging wire hanging member according to the present invention has the following effects, unlike conventional ones.

Since the hanging wire hooking member can be securely attached and fixed to the hawk crown portion, it is difficult to fall off from the hawk crown portion.

Since the part for hanging the hanging wire is located at a higher position than before, the hanging wire will not be caught on the tread of the front wheel, and serious problems such as falling and damage to tires, brakes, etc. will not occur.

The hanging wire hanging member can be attached to any bicycle that has a round hole in the hawk crown without cutting the female thread.

By using the male screw part protruding from the rear side of the hawk crown part of the hanging wire hanging member and the mounting nut, a mudguard plate can be attached together if necessary.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing how the bicycle front brake suspension wire latching member according to the present invention is used, Figs. 2 and 3 are side views showing other embodiments, and Fig. 4. 5 is a perspective view showing another embodiment, and FIG. 5 is a side view showing a conventional example. Drawing code, A... Hanging wire hanging member, a
...Latching member body, b...Mounting nut, 1...
...Hawk crown part, 2... Hanging wire hanging part, 3... Hanging wire fall prevention part, 4... Abutment part, 5... Penetration part, 6... Male screw part, 7...
...Hanging wire, 8...Front round hole, 9...Rear round hole, 10...Female screw hole, 11...Bolt, 12...
... spatula-shaped part, 13 ... vertical part, 14 ... intermediate nut, 15 ... hexagonal hole.

Claims (1)

[Scope of Claim for Utility Model Registration] Consisting of a latching member body a and a mounting nut b to the hawk crown part 1, the latching member body a is rod-shaped and has an outer diameter approximately twice as large as the outer diameter of the hawk crown part 1. The front end of the hawk crown part 1 is formed with a hanging wire hanging part 2 that projects upwardly, and a hanging wire drop-off prevention part 3 that projects upwardly at the front end. A contact part 4 is formed on the front surface of the hawk crown 1, and the rear half of the contact part 4 is defined as a penetration part 5 to the hawk crown 1, and the length of the penetration part 5 is set to the length of the hawk crown 1. A member for hanging a suspension wire for a bicycle front brake, which is longer than the outer diameter and has a male mounting thread 6 formed at least near the rear end into which the mounting nut b can be screwed.