Caliper Disc Brake of a Vehicle, in Particular of a Commercial Vehicle, and Brake Caliper of Such a Brake

Patent metadata

Field	Value
Publication number	US-2016169307-A1
Application number	US-201414787655-A
Country	US
Kind code	A1
Filing date	May 2, 2014
Priority date	May 13, 2013
Publication date	Jun 16, 2016
Grant date	—

Abstract

A caliper disc brake of a vehicle, in particular of a commercial vehicle, with a brake disc having an axis of rotation, a brake caliper ( 20 ), a brake anchor plate ( 22 ), a force transmission element, such as, for example, a lining support ( 26 ) and/or a pressure plate, which is guided and supported in a shall of the brake caliper or of the brake anchor plate, a holding-down spring ( 32 ) for holding down the force transmission element, and a holding-down device ( 36 ) which is held and supported on the caliper by a holding device, pretensions the holding-down spring radially against the force transmission device and pretensions the holding-down spring tangentially in the direction of rotation against the force transmission device during forwards travel, wherein the holding device has a centre line lying parallel to the axis of rotation. The tangential pre-tensioning is at least partially attributed to the fact that the dimension of the holding-down device, as measured in the tangential direction from the centre line, are larger at least in sections on the disc exit side than on the disc entry side.

First claim

1 . A caliper disk brake of a vehicle, in particular a commercial vehicle, with
a brake disk having an axis of rotation (A), a brake caliper ( 20 ), a back plate assembly ( 22 ), a force transmission element, such as a brake-pad plate ( 24 , 26 ) and/or a pressure plate ( 23 ), which is guided and supported in a channel of the brake caliper or the back plate assembly, a hold-down spring ( 30 , 32 , 34 ) for holding down the force transmission elements and a hold-down device ( 36 ) held and supported on the caliper by a holding device ( 38 , 40 ), which hold-down device pre-stresses the hold-down spring radially against the force transmission device and pre-stresses the hold-down spring against the force transmission device tangentially in the direction of rotation in forwards travel, wherein the holding device has a centerline (M) lying parallel to the axis of rotation, characterized in that the tangential pre-stressing is at least partially attributable to the fact that the dimensions (V 1 , V 2 ) of the hold-down device ( 36 ), measured in a tangential direction from the centerline (M), are at least in parts greater on the disk run-out side than on the disk run-in side.

2 . The brake caliper of a disk brake as claimed in claim 1 , characterized in that it is produced by casting and its holding device ( 38 , 40 ) for holding and supporting the hold-down device ( 36 ) is symmetrical in relation to a radial plane (ME) containing the centerline (M), in so far as its contour is predefined by the casting process.

3 . The brake caliper as claimed in claim 2 , characterized in that the holding device ( 36 ) comprises a projection ( 42 ) extending in the direction of the axis of rotation (D), the lateral flanks ( 44 , 46 ) of which serve to absorb tangential forces and the radially inner flank ( 48 ) of which serves to absorb radial forces.

4 . The brake caliper as claimed in claim 3 , characterized in that the projection ( 42 ) is of roof edge-like design.

5 . The brake caliper as claimed in claim 3 or 4 , characterized in that the projection ( 42 ) lies on the actuation side.

6 . The brake caliper as claimed in one of claims 2 to 5 , characterized in that the holding device ( 38 , 40 ) comprises a coding device ( 62 , 64 ; 66 , 68 ).

7 . The brake caliper as claimed in claim 6 , characterized in that the ceding device ( 62 , 64 ; 66 , 68 ) comprises a shoulder ( 62 ).

8 . The brake caliper as claimed in one of claims 2 to 7 , characterized in that the holding device ( 36 ) comprises a threaded connection device ( 58 ).

9 . The brake caliper as claimed in one of claims 6 to 8 , characterized in that the coding device ( 62 , 64 ; 66 , 68 ) and/or the threaded connection device ( 58 ) lies/lie on the wheel rim-side.

10 . The brake caliper as claimed in one of claims 2 to 10 , characterized in that it is a sliding caliper.

Assignees

• Wabco Europe Bvba

Inventors

• Falter Wolfgang
• Friebus Oliver
• Jager Hellmut
• Jungmann Hans-Christian

Classifications

• F16D65/0978 Primary

  acting on one pad only · CPC title

• F16D55/225

  the braking members being brake pads · CPC title

• F16D2055/0041

  Resilient elements interposed directly between the actuating member and the brake support, e.g. anti-rattle springs · CPC title

• F16D2055/007

  Pins holding the braking members · CPC title

• F16D65/0068

  Brake calipers · CPC title