Disc brake

Abstract

The invention provides a disc brake capable of suppressing an increase in the number of parts, upsizing, and deformation by brake torque, besides saving width in the disc rotational direction of a brake pad to ensure enough brake performance. This disc brake is a radial mount type in which a caliper 13 is fixed to a support member by screwing mount bolts into two bolt mounting holes 34a, 34b disposed along a disc radial direction to be separated in a disc rotational direction. In the caliper, a communicating passage 36 is disposed between the bolt mounting hole 34b on the outlet side in the disc rotational direction and the brake pad 17, and the central position C2 in the disc rotational direction of the brake pad 17 is disposed at off-set position to the central position C1 between the bolt mounting holes 34a, 34b separated in the disc rotational direction.

Description

technical field [0001] The present invention relates to a disc brake for vehicle braking, and more particularly to a radial mounting type disc brake in which a caliper is supported on the side of a vehicle body by bolts along the radial direction of the disc. Background technique [0002] like Image 6 As shown, the disc brake includes: a disc 101; a pair of brake pads 102, which coordinate and match in the disc rotation direction ( Image 6 The state of the position in the left and right directions), along the axis direction of the disc 101 ( Image 6 middle, upper and lower directions) are arranged on both sides thereof; clamps 105 are arranged on both sides along the axis of the disk in a coordinated and matched position in the direction of rotation of the disk, and are arranged separately along the direction of the disk. , there are two pairs of cylinder chambers 103a, 103b that can slidably fit the pistons 104a, 104b pushing the brake pads 102 inside; the support member,...

AI Technical Summary

Problems solved by technology

[0008] Again, if Figure 8 As shown, in order to ensure sufficient braking performance, the width L13 of the brake pad 102 in the disc rotation direction is expanded, and at the same time, the enlargement of the clamp 105 is suppressed, and the distance between the bolt holes 107a, 107b is suppressed in the disc rotation direction. The enlargement of L12, like this, the distance L11 of bolt installation hole 107a, 107b and disc 101 is widened, and as a result, the distance of disc 101 and bolt installation hole 107a, 107b becomes longer, and the deformation that clamp 105 produces by turning moment increases

[0009] In addition, as shown in Japanese Patent Laid-Open No. 2000-249173, it is also possible to make a connecting pipe structure that is installed on the outside of the clamp to form a passage, but in this case, the number of parts will inevitably increase and the cost will increase.

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