JPH0565928A - Disc brake caliper - Google Patents

Abstract

PURPOSE: To prevent vibration generated in calipers during braking and eliminate un-uniform brake action and noise caused by the vibration. CONSTITUTION: Flat surfaces 8A, 8B forming angles A, B with respect to longitudinal direction t-t are formed on a parallel arranged surface 8 of two halves of calipers 3, 4 arranged in parallel position. The halves of calipers 3, 4 are connected to each other under the condition of being applied by force due to the V-shaped engagement, so that they are not influenced by vibrations caused by pay or inaccurate processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc brake caliper according to the preamble of claim 1.

[0002]

BACKGROUND OF THE INVENTION As is well known, disc brake calipers are comprised of both inner and outer halves. The inner half caliper is fixed to the axle on which the disc brake is mounted. When the brake is applied, vibration occurs in both the inner half caliper and the outer half caliper. This vibration appears more intensely in the outer half caliper than in the inner half caliper, causing the calipers to move away from each other.
As a result, there is a disadvantage that the disc brake cannot act uniformly and noise, particularly hiss noise is generated.

In order to solve such a problem, a countermeasure has been proposed in which a high or ultra high strength fastener is used as a screw fastener for connecting two half calipers to increase the tightening torque for the fastener. With such a method, no significant improvement effect can be obtained.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disc brake caliper having a structural function capable of solving the above conventional problems.

[0005]

In order to achieve the above object, the present invention is arranged on both sides of the brake disc (2) along the longitudinal direction (t-t) and is arranged with respect to each other via an apposition surface (8). In the disc brake caliper (1) having two half calipers (3, 4) juxtaposed and integrally joined by screw fasteners (9A, 9B), the juxtaposed face (8) being located on the tangent line to the disc (2). ) Comprises at least one flat surface (8A, 8B) forming an angle (A, B) with respect to the longitudinal direction (t-t).

[0006]

According to the present invention configured as described above, since the half calipers 3 and 4 are connected to each other in a state in which a force is applied, the half calipers 3 and 4 are not affected by vibration caused by play or machining inaccuracy. Absent.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a disc brake caliper 1 is arranged to act on a conventional brake disc 2 having an axis XX. The caliper 1 includes an inner half caliper 3 and an outer half caliper 4 which are connected to an axle or the like.
And consists of.

The half calipers 3 and 4 have front end portions 3 respectively.
A, 4A and rear ends 3B, 4B. Notches 3C and 4C are formed between the front end and the rear end, respectively. The notches 3C and 4C extend radially with respect to the disc 2 in the caliper 1 and form a central hole 5 for accommodating a known brake pad.

The half calipers 3 and 4 are juxtaposed in such a manner that the respective surfaces 6 and 7 thereof are received by the juxtaposed surface 8 and are integrally connected by four screw fasteners. Of these four screw fasteners, two fasteners 9A have front end portions 3A-4A.
The other two fasteners 9B are connected to the rear end portion 3B-
4B is connected. The surface 6 of the inner half caliper 3 is divided into a front surface 6A on the front end portion 3A side and a rear surface 6B on the rear end portion 3B side.

Similarly, the surface 7 of the outer half caliper 4 is divided into a front surface 7A on the front end portion 4A side and a rear surface 7B on the rear end portion 4B side. And the front surface 7A and 6A, the rear surface 7B and 6B
And are facing each other. In the disc brake caliper according to the embodiment of the present invention, the front surfaces 7A and 6A are flat and form an angle A with respect to the longitudinal direction t-t.

Similarly, the rear surfaces 7B, 6B are also flat and form an angle B with the longitudinal direction t-t. The angle A and the angle B have the same size but are in a mutually opposing relationship. In the directions of the angles A and B, the front surface 7A and the rear surface 7B form a V-shaped convex portion 10 having a vertex vv on the outer half caliper 4, and the front surface 6A and the rear surface 6B are located inside the inner half caliper 3. It is oriented so as to form a V-shaped recess 11 having a vertex vv. The inner half caliper 3 is V inside the caliper.
The character-shaped convex portion 10 is fitted and connected.

The V-shaped projection 10 and the V-shaped recess 11 are
It has to be noted that both are orthogonal to the axis XX. As a result, the juxtaposed surface 8 moves in the longitudinal direction t-
Flat front 8 forming angles A and B respectively with t
A and the rear part 8B will be provided. Screw fastener 9
As A and 9B are screwed in, the V-shaped convex portion moves into the V-shaped concave portion with a predetermined force. This is because the front surface 7A and the rear surface 7B of the outer half caliper 4 have a characteristic of sliding on the flat portions 8A and 8B of the juxtaposed surface 8 relative to the front surface 6A and the rear surface 6B of the inner half caliper 3. is there.

Angles A and B are selected within the range of 1-6 degrees, with 3 degrees being particularly preferred. In the present embodiment, the joining state of the semi-calipers is performed in the state where the force is applied, so that there is no influence of vibration due to play or machining inaccuracy. The disc brake caliper according to the present invention can be modified and improved in various forms by those skilled in the art without departing from the essence of the present invention, as described in the claims.

[0014]

As described above, according to the disc brake caliper of the present invention, two half calipers are connected to each other in a V shape so as to be epoch-making, which is substantially equivalent to an integral structure. It is possible to exhibit various rigidity and prevent variations in braking force and noise due to vibrations and the like.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a disc brake caliper according to an embodiment of the present invention.

[Explanation of symbols]

 1 disc brake caliper 2 brake disc 3 inner half caliper 4 outer half caliper 5 central hole 8 juxtaposed surfaces 8A, 8B flat portion 10 V-shaped convex portion 11 V-shaped concave portion

Continued from the front page (72) Inventor Giovanni Paolo Patchiana Italy 24036 Bergamo Ponte Saint Pietro Vivia Don Segetsu Tsui 2 (72) Inventor Giovanni Nigottsui Italy 24011 Bergamo Arme Via Mattesottsui 1 (72) Inventor Friedrich 240 Kaisel Italy Bergamo Motsutsuo Via Todesini 72

Claims (5)

[Claims] 1. Two pieces arranged on both sides of a brake disc (2) along a longitudinal direction (tt), juxtaposed to each other via juxtaposed surfaces (8) and integrally connected by screw fasteners (9A, 9B). In the disc brake caliper (1) having half calipers (3, 4) on the tangent to the disc (2), the juxtaposed surface (8) forms an angle () with respect to the longitudinal direction (t-t). A, B) forming at least one flat surface (8A, 8)
A disc brake caliper including B). 2. The disc brake caliper according to claim 1, wherein the flat surfaces (8A, 8B) of the juxtaposed surface (8).
Are two and form equal facing angles (A, B) with respect to the longitudinal direction (t−t), thereby forming a V-shaped convex portion (10) on one half caliper (4), and Disc brake caliper, characterized in that the other half caliper (3) is provided with a V-shaped convex portion (10) and a V-shaped concave portion (11) that fits inside the caliper. 3. The disc brake caliper according to claim 2, wherein the V-shaped convex portion (10) forms a predetermined connecting force connection with the V-shaped concave portion (11). Disc brake caliper. 4. The disc brake caliper according to claim 3, wherein the angle (A, B) is selected within an angle range of 1-6 degrees. 5. The disc brake caliper according to claim 4, wherein the angle is 3 degrees.