JPH01182185A - Caliper support device for brake in motor bicycle - Google Patents

Abstract

PURPOSE:To enable removal of a bracket in a state to mount it to a bracket and to facilitate inspection and repair, by a method wherein a protrusion engaged with the upper and lower protrusion edges of the side of a rear fork is formed on the front end part of a caliper support bracket and a down U-shaped opening engaged with a rear axle is formed in the rear end part thereof. CONSTITUTION:A caliper 2 for a brake disc 1 is mounted to a rear fork 14 through a bracket 8 connected to mounting parts 9 and 10. In order for this mounting, a protrusion 11 protruded sideways is formed on the front end part of a support bracket 8, and the protrusion is engaged with protrusion edges 15 and 16 formed in a manner to protrude from the upper and lower side of the rear fork 14 and slidable in a longitudinal direction. A down U-shaped opening 12 engaged with a rear axle 13 is formed in the rear end part of the support bracket 8. With the fastening nut of the rear axle 13 unfastened, the support bracket 8 is moved backward in the direction of an arrow mark A. When the protrusion 11 is disengaged from a rear end, the bracket can be disengaged by lifting it up in the direction of an arrow mark B. This constitution enables facilitation of inspection and repair in a state to mount a caliper to a bracket.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a caliper support device for a disc brake attached to a rear wheel of a motorcycle.

(Prior Art) A conventional bracket for a caliper support device, as shown in Utility Model Application Laid-Open No. 54-128238, has a structure in which a caliper is screwed to the upper part and a mounting hole provided at the lower part is fitted to the rear wheel. General.

(Problems to be Solved by the Invention) In the prior art described above, when the caliper is removed from the vehicle body for inspection and repair of pads, hydraulic pistons, etc., the caliper must be removed from the bracket by loosening the mounting screws, or left attached to the bracket. You need to remove the rear axle. However, if the caliper is supported in a floating manner by the mounting screws, there is a risk of accidentally damaging the member that seals the floating part when attaching or removing the mounting screws. is troublesome.

Therefore, it is practically desirable to have a caliper support device that allows easy removal and reassembly of the caliper while it is still attached to the bracket.

(Means for Solving the Problems) The present invention solves the above problems, and provides a caliper for a motorcycle brake in which a caliper is attached to a bracket and the bracket is attached to a rear fork. In the support device, a front engagement portion that is in contact with a pair of upper and lower engagement surfaces and can be slid back and forth is provided between the front side surface of the bracket and the side surface of the rear fork opposing thereto; It is characterized by providing a rear engaging portion that engages with the rear axle from above through a downward U-shaped opening.

(Function) By the means described above, the caliper and bracket are positioned in the longitudinal direction by the rear axle, and the vertical movement and braking torque generated therein are prevented and supported by the front engagement part, and the caliper and the bracket are positioned in the longitudinal direction by the front engagement part. Movement is blocked by the rear engagement part. To remove the caliper and bracket from the vehicle body, either loosen the nut on the rear axle and move the bracket back together with the rear axle to remove the front engagement part between the bracket and rear fork, or
Alternatively, it can be removed by rotating the bracket around the front engagement part.

(Example) The present invention will be described in detail below based on the drawings. FIG. 1 shows an embodiment of the present invention, in which 1 is a brake disc, 2 is a caliper, and the caliper 2 is of a commonly used type, and includes a cylinder 3, a hydraulic inlet 4, an air bleeder 5, and an arm-shaped mounting. 6.1.

The bracket 8 is attached to the mounting portion 6.7 with members 9 and l.
A protrusion 11 is provided on the lower front side surface to protrude toward the rear fork, and the upper and lower surfaces of the protrusion 11 serve as engagement surfaces.

A downward U-shaped opening 1 is provided at the rear of the bracket 8.
2 is provided and engages with the rear axle 13 from above.

The rear fork 14 has a vertically protruding edge 15.1 on the inner surface.
6 is protruded, the protruding edge 1G extends further rearward than 15, and the protrusion 11 of the bracket 8 is inserted to form a front engagement portion 17, thereby allowing the bracket 8 to slide in the front-rear direction. regulates vertical movement.

The rear axle 13 is mounted in the mounting groove 18 of the rear fork 14 and fixed with a nut, and the rear axle 13 and the opening 12 of the bracket 8 form a rear engagement part 19, thereby preventing the bracket 8 from moving back and forth. to regulate. In order to fix the axle 13, a suitable stopper 20 can be used in combination to prevent the axle 13 from moving backward.

Since the bracket 8 is engaged with the rear fork 14 in this way, the braking force is received by the image body joining part 17. Rotation is prevented by being received by the mating surface. Then, the protrusion 11 on the front engaging portion 17
Since the bracket 8 can be slid back and forth, the bracket 8 is allowed to move depending on the fixed position of the rear axle 13.

When removing the caliper 2 together with the bracket 8 for inspection and repair, remove the stopper 20, loosen the nut on the rear axle 13, and move the bracket 8 and the rear axle 13 backward in the direction of the arrow so that the protrusion 11 comes away from the rear end of the upper protruding edge. When it comes off, it can be removed by lifting it in the direction of the arrow.

In this embodiment, the protrusion 11 of the front engaging portion 17 may be provided on the rear fork 14 side, and the protruding edge 15.1B may be provided on the bracket side.

Next, another embodiment of the present invention will be described with reference to FIG. In this embodiment, the bracket 8 is provided with upper and lower projecting edges 23 and 24 facing laterally, and an oval-shaped guide 26 is rotatably attached to the rear fork 14 by a support shaft 25. 23 and 24, forming a front engaging portion 27. The rear engaging portion 19 is the same as the embodiment shown in FIG.

When removing this bracket 8, with the rear wheel attached to the rear axle 13, rotate the bracket 8 about the support shaft 25 in the direction of the arrow, and the rear locking part 19 will be immediately attached to the rear. Axle 1
3, the guide 2B can be slid inside the protruding edges 23, 24 and removed.

Also in this embodiment, the installation locations of the protruding edges 23, 24, guide 2B, etc. may be reversed.

In such a vehicle, a chain guide device shown in FIG. 3 and subsequent figures can be provided on the chain running path. In FIG. 3, 30 is a driving sprocket, 31 is a chain wheel, and 32 is a driven sprocket. A chain slider 33 is attached to the front end of the rear fork 14 to cover its upper and lower surfaces, and the chain wheel 31 rubs the surface of the rear fork 14. An en guide 34 is attached to the rear lower part of the rear fork 14 to prevent vibration of the chino 31.

The Cheno slider 33 is a horizontally long U-shaped member having an upper side 35 and a lower side 38, and is fitted onto the rear fork 14 from the front, and has sliding surfaces 358136a on the upper and lower surfaces of the front part.
This protects the rear fork from Cheno 31. As shown in FIG. 4, the Cheno slider 33 has ribs 35b, 36b and tongue pieces 35c at the side ends.

The upper side 35 of 36c1 is provided with protrusions 35d, etc. as appropriate, and these engage the rear fork 14, and the tongue pieces 35c, 3
(Stack the ICs and secure them to the rear fork 14 with screws 37.

As shown in FIG. 5, the ceno guide 34 has a resin slider 39 fixed to the bottom of a U-shaped frame 38 when viewed from the front, and its front and rear upper ends are fitted onto the ear pieces 21 and the rear axle 13. It is pivotally connected to the link 40.

By connecting in this manner, the surface of the slider 39 is lowered when the fixed position of the rear axle 13 is closer to the front, and raised when it is closer to the rear. On the other hand, since the position where the chenno 31 is wound around the sprocket 32 is at the lowest position when viewed from the rear fork 14, the distance of the chenno 31 from the rear fork 14 is determined by the position of the rear axle 13 near the chenno guide in front of it. If the rear axle 13 is in the forward position, it will descend and move away from the rear fork 14, and if it is in the rear position, it will rise and approach.

In this way, even if the fixing position of the rear axle 13 changes, the height of the slider 39 also changes in accordance with the change in the height of the chino.
The guiding action can be maintained in a constant and stable state.

(Effects of the Invention) As described above, the present invention allows the rear axle to be moved back slightly from the fixed position on the rear fork, or the bracket can be attached and detached while the rear axle is fixed, making inspection and repair of the caliper extremely easy. Moreover, since the fixing part between the caliper and the bracket is not disassembled, there is no risk of damaging the sealing member of the chain part, etc.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is a side view of another embodiment, Fig. 3 is a side view of the cheno guide device, Fig. 4 is a sectional view taken along the line IV-mV in Fig. 3, Figure 5 shows v-■ in Figure 3.
FIG. 8...Bracket 13...Rear axle 17...
・Front engaging part 19... Rear engaging part Fig. 1 Fig. 3 Fig. 2 Fig. 4 Fig. 5

Claims (1)

[Claims] In a motorcycle brake caliper support device in which a caliper is attached to a bracket and the bracket is attached to a rear fork, a pair of upper and lower engagements are provided between the front side of the bracket and the opposite side of the rear fork. An automatic vehicle characterized in that a front engaging part is provided which is in contact with the surface and can be slid back and forth, and a rear engaging part which engages the rear axle from above through a downward U-shaped opening is provided at the rear of the bracket. Caliper support device for motorcycle brakes.