JPS59199384A - Brake gear for bicycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention This invention provides a fixed time difference between the front wheels and the rear wheels by operating a brake lever attached to one end of the handle, distributes the operating force in a predetermined ratio, and brakes the front and rear wheels. The present invention relates to a bicycle brake device that is provided so that a rear wheel can be braked independently by operating a brake lever attached to the other end.

Conventionally, bicycles have had a brake lever for the front wheel brake on the right end of the handlebar, and a brake lever for the rear wheel brake on the opposite left end, so when braking suddenly to avoid danger, you may accidentally use your dominant arm. He often used his right arm to grip the brake lever of the right-most front wheel brake, applying strong braking only to the front wheel, causing him to lose control of the steering wheel and fall.

So, when you squeeze the brake lever on your dominant arm,
For example, the operating force is first applied to the rear wheels and then to the front wheels, with a time lag for braking, and the braking force is applied to both wheels in a desired proportion and is adjusted and distributed, and in addition, the braking force is applied to both wheels in a desired proportion, and in addition, the braking force is applied to both wheels at a desired ratio. The purpose of the present invention is to provide an operating force that can be transmitted to the rear wheel brakes independently of the aforementioned operation, so that the operating force can be effectively transmitted to the front and rear wheels, and deceleration can be performed safely.

Hereinafter, this invention will be explained with reference to the drawings, which are an example of implementation. Reference symbol (3) denotes a regulator, which is housed in a case 2, has an upper connection hole 3 in its upper part, and connects the transmission cable in connection order 4. 5
is associated with the right lever 7 attached to the right end of the handle 6, and receives the operating force therefrom. A left side connection hole 11 is opened at the lower left side of the connection hole 3 at an appropriate distance from the upper connection hole 3, and is connected to the transmission cable 9 of the front wheel brake 8.
, connection order] 0 is inserted and connected.

A right side connection hole 12 which is long in the operating direction of the adjuster 1 is opened in the lower right side of the upper connection hole 3 in the vicinity of the left side connection hole 11, and a transmission element 4 associated with the rear wheel brake 13 is formed on the inner edge of the lower part thereof. A connecting piece 18 having an adjustment hole 17 whose vertical length is shorter than the connecting hole 12 is connected to the connecting piece 18 by inserting and engaging the connection order 15 of the connecting hole 12, and providing a guide groove 16 that communicates vertically along the connecting hole 12.
The connecting piece 15 of the transmission cable 14 is fitted into the lower part of the adjusting hole 17 of this connecting piece, and the connecting piece 18 (connected to the adjuster i) is freely engaged downwardly. , the upper part is fitted with a connection sequence 21 of the transmission accumulator associated with the left lever 19 attached to the left end of the handle 6.

Incidentally, the spring is a pressing spring that urges the connecting piece 18 downward.

However, in the embodiment described above, both the front wheel brake 8 and the rear wheel brake 13 are caliper type, and the case 2 is supported at the rear by a bracket 4 and a handle post B.

Since the present invention is constructed as described above, when the right lever 7 is pulled, the transmission cable 5 receives the operating force and pulls up the adjuster lever. There, the left and right transmission cables 9.14 were pulled up,
The front wheel brake 8 and the rear wheel brake 13 are provided with a rear wheel brake 13,
In this order, the front wheel brakes 8 are braked by distributing the operating force using the same lever ratio. In other words, in the adjustment, the transmission cable 9 of the front wheel brake 8 is fixedly connected to the left side connection hole 11, so transmission is carried out by a balance action, and then the transmission cable 14 of the rear wheel brake 13 is connected to the right side connection hole 12. Since it is engaged with the inner edge of the lower end, it is pulled up by a balance action similar to the transmission cable 9 of the front wheel brake 8.

Next, when the left lever 19 is pulled, the transmission accumulation associated with this moves the connecting piece 18 along the guide groove 16 of the adjuster l, so that the rear wheel brake 1 is moved independently of the adjuster l.
Therefore, the rear wheel brake 13 can be operated independently of the operation of the right lever 7. Since this invention is as described above, it is possible to In such a case, the front wheels and the rear wheels start braking in a predetermined order and the braking force is also distributed in a predetermined manner, so braking is easy and there is no chance of an accident such as the front wheel being taken off or falling. It can be prevented. In addition, by operating the left hand wheel, you can brake the rear wheels associated with it independently of the right hand wheel, making it possible to use the grip strength of both hands to achieve strong, reliable, and safe braking.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway front view of the main part, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along line B-- 4 is a front view of the connecting piece alone, and FIG. 5 is a perspective view of a bicycle equipped with the brake device of the present invention. ■...Adjuster, 2...Case, 3...Top connection hole, 5...Right lever transmission cable, 6...Handle, 9...
・Front wheel brake transmission cable, 11...Left side connection hole, 12・
...Right side connection hole, 14...Rear wheel brake transmission cable, 15
... Connection order with the rear wheel power transmission cable, 17 ... Adjustment hole, 18 ... Connection piece, [Stock] ... Left lever power transmission cable,
21... Connection order with the left lever transmission cable. Applicant: Miyata Kogyo Co., Ltd. Agent: Kan Ohga, Masayoshi Masuda Figure 2

Claims (1)

[Claims] Transmission cable from the lever attached to one end of the handle! In the adjuster, which connects the transmission cable of the front wheel brake and the transmission cable of the rear wheel brake at a distance from each other to the left and right with A guide groove is provided along this guide groove, a connecting piece is slidably inserted into this guiding groove, an adjustment hole provided in the connecting piece is communicated with a part of the connecting hole, and a connecting piece is connected to a part of the connecting hole. A power transmission cable from the rear wheel or related members thereof is engaged with the lower inner edge of the rear wheel so as to be freely movable upward, and a power transmission cable from a lever attached to the other end of the handle is engaged with the opposite upper part, and the power transmission cable from the lever attached to the other end of the handle is engaged with the transmission cable connected to the handle. is a bicycle brake device that brakes the rear wheels independently.