JPS6212917Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sliding support device for movably supporting a caliper in a rotor axial direction in a pin type disc brake.

Generally, this type of disc brake has a structure in which a caliper, which is arranged to straddle the edge of the rotor, is supported by a fixed support via a pair of sliding support devices spaced apart in the circumferential direction of the rotor. This sliding support device is usually of the type in which a slide pin fixed to either the fixed support or the caliper is slid into an opening formed in either the fixed support or the caliper. .

In addition, since such sliding support devices in which the opening and the slide pin are slidably fitted are arranged in a pair spaced apart in the circumferential direction of the rotor, taking into account the deviation in their dimensional tolerances, Many products have a rubber bush interposed in the sliding part, and in this case, the sliding resistance between the rubber and the sliding surface of the opening or slide pin may become large, so it is recommended to fit a rigid sleeve. It is also being done to make it possible.

By the way, it has been pointed out in the past that when such a rigid sleeve is fitted, it is difficult to fit it into the rubber bushing because it has a dimensional relationship that allows it to fit closely into the rubber bushing. That is, this is because the rubber bushing is likely to get caught at the end of the rigid sleeve.

Therefore, the inventor of the present invention has made various improvements in order to overcome these difficulties, and as a result has come up with the present invention. Specifically, the present inventor has developed a fixed support fixed to the edge of the rotor Alternatively, an opening formed in either one of the calipers arranged to straddle the edge of the rotor and a slide pin fixed to either the fixed support or the caliper slide together, so that the caliper is attached to the rotor axis. In a sliding support device for a pin-type disc brake that is movably supported in a direction, a rubber bushing is attached to either the inner periphery of the opening or the outer periphery of the slide pin, and the rubber bushing is attached to the rubber bushing through a rigid sleeve fitted to the rubber bushing. is provided so as to be slidably fitted to either the inner periphery of the opening or the outer periphery of the slide pin, and this rigid sleeve is further characterized in that split grooves of a constant length in the generatrix direction are formed alternately from both ends of the cylindrical shape. A sliding support device for a pin type disc brake is provided.

The present invention will be described below based on embodiments shown in the drawings.

FIG. 1 shows the structure of a sliding support part of a pin type disc brake to which the present invention is applied, and 1 is a slide pin, which in this example is fixed to a fixed support (not shown). The slide pin 1 is slidably fitted into a boss opening 3 of a caliper 2 via a rubber bush 4 and a rigid sleeve 5 so as to be slidable in the axial direction.

The rubber bush 4 in this example is fitted and fixed in the boss opening 3 of the caliper, and has a recess 6 in the inner cylinder.
is formed, and the rigid sleeve 5 is fitted and fixed into this recess 6.

The present invention is particularly characterized by the shape of the rigid sleeve 5. As shown in FIG. It is formed.

3 and 4 show conventional examples of rigid sleeves, FIG. 3 having a simple cylindrical shape and FIG. 4 having a C-shaped cross section. However, in the embodiment of the present invention shown in Fig. 2, the diameter is In addition to having some elasticity in the direction, the split groove 7
There is an advantage that there is no problem such as overlapping in the parts, and good workability can be obtained when fitting or integrally molding the rigid sleeve 5 to the rubber bush 4.

It should be noted that the shape of the rigid sleeve is not limited to that of the above-mentioned embodiment, and it goes without saying that the number, length, width, etc. of the dividing grooves can be changed in various ways.

As mentioned above, the structure of the sliding support part of the pin type disc brake according to the present invention has the excellent benefit of improved workability through relatively simple structural improvements, and its practical benefits are significant. It is.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing the structure of the sliding support part applied to the present invention, Figure 2 is a perspective view of a rigid sleeve showing an embodiment of the present invention, and Figures 3 and 4 are views of the conventional example. FIG. 3 is a perspective view of a rigid sleeve. 1...Slide pin, 2...Caliper, 3...
Opening, 4...Rubber bushing, 5...Rigid sleeve, 6...Recess, 7...Divide groove.

Claims (1)

[Scope of utility model registration request] An opening formed in either a fixed support fixed to the edge of the rotor or a caliper arranged to straddle the edge of the rotor, and an opening fixed to the other of the fixed support or the caliper. In a sliding support device for a pin type disc brake that supports the caliper movably in the rotor axial direction by slidingly fitting a slide pin, a rubber bushing is attached to either the inner periphery of the opening or the outer periphery of the slide pin, and The rubber bushing is provided so as to be slid onto either the inner periphery of the opening or the outer periphery of the slide pin via a rigid sleeve fitted onto the rubber bushing. A sliding support device for a pin type disc brake, characterized by being formed alternately from both ends.