JPS6220395Y2 - - Google Patents

Description

[Detailed description of the invention] In the conventional front wheel of a motorcycle, as shown in FIG. 1, brake discs b are integrally provided on both sides of the front wheel a.
In order to supply pressure oil from the master cylinder d to the left and right pair of calipers c that sandwich the , one brake hose e is connected to the master cylinder d, and two brake hoses are connected to the pair of calipers c, respectively. f and were connected to each other via a joint g, but since this joint g is placed in the narrow space between the two front hooks h, it takes some effort to assemble and the structure is complicated. It became.

The present invention relates to an improvement of the front fork of a motorcycle, etc., which eliminates such inconveniences, and its purpose is to provide a hydraulic brake hydraulic system that is easy to assemble, process, and structure, and is inexpensive.

An embodiment of the present invention illustrated in FIGS. 2 to 6 will be described below.

Reference numeral 1 denotes a bottom case of a front cushion, and a front fork pipe 2 is slidably fitted into each of the pair of bottom cases 1, and a top bridge 3 is attached to the upper part of the pair of front fork pipes 2.
and the bottom bridge 4 are integrally connected to each other.

Further, the upper ends of the pair of bottom cases 1 are integrally connected to each other by a stabilizer 5.

A joint portion 6 is integrally formed on the stabilizer 5, and mounting holes 7 are provided at both left and right ends of the joint portion 6 for attaching brake hoses 9 and 10, which will be described later. A communication hole 8 is provided that communicates the mounting holes 7 of the two with each other.

Further, of a pair of left and right handles 11 integrally fixed to the upper end of the front fork pipe 2, a master cylinder 12 is attached to the right handle 11, and one end of the brake hose 9 is connected to the master cylinder 12. .

Further, connecting fittings 13 are connected to the other end of the brake hose 9 and one end of the pair of brake hoses 10, respectively.
14 are integrally connected, the pair of connection fittings 14 are fitted into the pair of attachment holes 7 of the joint portion 6, the connection fittings 13 are brought into contact with either one of the pair of attachment holes 7, and these Connection fittings 13,1
Numeral 4 is an oil bolt 15 that is integrally attached to the joint portion 6 in an oil-tight manner.

Furthermore, the other ends of the pair of brake hoses 10 are each connected to a hydraulic brake caliper 16, and each of the calipers 16 is integrally attached to the bottom case 1.
Front wheel 1 rotatably supported on
A front brake disc 18, which is integral with 7, is braked by the caliper 16.

Since the embodiment shown in FIGS. 2 to 6 is constructed as described above, the master cylinder 1
2, pressurized oil is sent to the hydraulic brake caliper 16 via the brake hose 9, the joint part 6, and the brake hose 10, and the caliper 16 applies a brake to the front wheel 17.

In addition, since the joint part 6 is pre-formed integrally with the stabilizer 5, there is no need for a separate joint from the stabilizer as in the conventional case, and the structure is simple, reducing the number of processing and assembly steps, and reducing costs. becomes cheaper.

Further, the brake hose from the master cylinder 12 to the caliper 16 is divided into one brake hose 9 and two brake hoses 10 at the joint 6, and the upper end of the lower brake hose 10 is supported at the joint 6. Since it is fixed, separate parts such as hooks for fixing the brake hose are not required, so the number of parts is reduced.

Furthermore, since the joint part 6 is integrally formed at the rear of the stabilizer 5, the joint part 6 is not noticeable and has a sophisticated appearance and high commercial value.

In the embodiments shown in FIGS. 2 to 6, the joint portion 6 is formed at the rear of the stabilizer 5, but as shown in FIGS. 7 to 9, the joint portion 6 is formed integrally above the stabilizer 5. Alternatively, the joint portion 6 may be formed integrally with the top bridge 3 or the bottom bridge 4.

As mentioned above, the hydraulic piping of the hydraulic brake is constructed of one upper pipe connected to the master cylinder on the upstream side and two lower pipes connected to two calipers on the downstream side. In a motorcycle or the like in which upper and lower conduits are connected via an intermediate joint, a joint passage hole having a mounting portion and a communication portion for the upper and lower conduits is integrally formed in a stabilizer that integrally connects the upper portions of a pair of left and right bottom cases. Therefore, the pressure oil in the master cylinder can be sent to the caliper through the upper conduit, the joint, and the lower conduit to apply the brake.

Further, in the present invention, since the joint is integrally formed in the bridge member, the number of parts is reduced.
Processing and assembly man-hours can be reduced.

Furthermore, in this proposal, only one upstream conduit that connects the stabilizer integrated with the bottom case and the master cylinder integrated with the handle is bent in accordance with the bottom case, which moves up and down in response to the expansion and contraction of the front fork. Since the two downstream conduits connecting the stabilizer and the caliper can be prevented from being bent, the downstream conduits can be made of metal pipes or the like.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional front fork of a motorcycle, FIG. 2 is a perspective view illustrating an embodiment of the front fork of a motorcycle, etc. according to the present invention, FIG. 3 is a plan view of the main part thereof, and FIG. 5 and 6 are front and side views, FIG. 7 is a plan view of another embodiment, and FIGS. 8 and 9 are front and side views. 1...Bottom case, 2...Front fork pipe, 3...Top bridge, 4...Bottom bridge, 5...Stabilizer, 6...Joint part, 7...Mounting hole, 8...Communication path, 9, 10
...Brake hose, 11...Handle, 12...
... Master cylinder, 13, 14 ... Connection fittings, 15 ... Oil bolt, 16 ... Hydraulic brake caliper, 17 ... Front wheel, 18
...Front brake disc.

Claims (1)

[Scope of utility model registration request] The hydraulic piping of the hydraulic brake consists of an upper conduit connected to the master cylinder on the upstream side and two lower conduits connected to two calipers on the downstream side, and the upper and lower conduits are connected to a joint in the middle. A joint through hole having a mounting portion and a communicating portion for the upper and lower conduits is integrally formed in a stabilizer that integrally connects the upper portions of a pair of left and right bottom cases in an automobile, two-wheeled vehicle, etc., which are connected through a stabilizer. Front forks of motorcycles, etc.