Disc brake and brake pad set

Patent metadata

Field	Value
Publication number	US-10125832-B2
Application number	US-201615059817-A
Country	US
Kind code	B2
Filing date	Mar 3, 2016
Priority date	Nov 12, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A disc brake for a vehicle, in particular for a commercial vehicle, includes a brake carrier which receives at least two brake pads in respective clamping side and rear side pad slots, with the at least one brake pad on the clamping side being held in its pad slot in a form-fitting manner. The at least one brake pad on the clamping side is provided with at least one pad retaining spring which is supported at least on a brake carrier horn of the pad slot of the brake carrier. The at least one clamping spring exerts a tensile force acting radially outward on the brake pad. A brake pad set for the disc brake is also provided.

First claim

What is claimed is:

1. A disc brake for a vehicle, comprising:
a brake disc;
at least two brake pads, the at least two brake pads including a clamping side brake pad located on a clamping side of the brake disc and a rear side brake pad located on a rear side of the brake disc;
a brake carrier configured to accommodate the at least two brake pads in respective clamping side and rear side brake pad slots, the brake carrier having at least one brake horn at a lateral side of at least the clamping side brake pad slot;
a brake caliper configured to straddle the brake disc when in an installed position on the brake carrier with a clamping side and arranged to apply the clamping side brake pad against the clamping side of the brake disc and a rear side arranged to apply the rear side brake pad against the rear side of the brake disc,
wherein the clamping side brake pad
is located in form-fitting engagement with the clamping side pad slot with respect to a radial direction perpendicular to a rotation axis of the brake disc,
includes at least one pad retaining spring configured to be supported on the at least one clamping side brake carrier horn and to exert a radially outward tensile force on the clamping side brake pad.

2. The disc brake according to claim 1 , wherein
the form-fitting engagement of the clamping side brake pad with the clamping side pad slot includes form-fitting engagement of a pad rear plate of the clamping side brake pad with a contour of the at least one clamping side brake carrier horn.

3. The disc brake according to claim 2 , wherein
the contour of the at least one clamping side brake carrier horn includes an undercut surface configured to engage an undercut surface of an opposing protrusion of the pad rear plate without play when the clamping side brake pad is subject to the radially outward tensile force exerted by the at least one pad retaining spring.

4. The disc brake according to claim 3 , wherein
the at least one pad retaining spring is mounted on the pad rear plate.

5. The disc brake according to claim 4 , wherein
the at least one pad retaining spring is located on a top side of the pad rear plate.

6. The disc brake according to claim 5 , wherein
the at least one pad retaining spring includes a central section, arms on opposite sides of the central section between the central section and respective adjacent pressure sections, and transitional sections between the central section and the arms,
the central section is located on the top side of the pad rear plate,
the transitional sections are located over the top side of the pad rear plate, and
the pressure sections extend beyond lateral sides of the pad rear plate.

7. The disc brake according to claim 6 , wherein
the at least one brake horn includes two brake horns located at laterally opposite side of the clamping side brake pad slot, and
at least one of the pressure sections is configured to be supported on at least one of the two clamping side brake carrier horns.

8. The disc brake according to claim 3 , wherein
the at least one pad retaining spring is held and guided on the pad rear plate.

9. The disc brake according to claim 8 , wherein
the at least one pad retaining spring includes a central section, arms on opposite sides of the central section between the central section and respective adjacent pressure sections, and transitional sections between the central section and the arms,
the central section is configured to cooperate with a retaining section and connecting sections interact with a fastening section of the pad rear plate, such that the fastening section
inhibits lateral movement of the central section and the at least one pad retaining spring in an axial direction toward a friction lining, and
inhibits radial movement of the central section and the at least one pad retaining spring in the radial direction away from the top side of the pad rear plate.

10. The disc brake according to claim 9 , wherein
the fastening section and a lug cooperate to inhibit the radial movement of the central section and the at least one pad retaining spring in the radial direction.

11. The disc brake according to claim 10 , wherein
the fastening section extends away from the top side of the pad rear plate, and
the lug is mounted on an upper edge of the fastening section and extends as a protrusion toward an actuating side of the pad rear plate facing away from the brake disc.

12. The disc brake according to claim 11 , wherein
the lug is a contour forming a retaining surface on a bottom side of the fastening section.

13. The disc brake according to claim 12 , wherein
the central section of the at least one pad retaining spring contacts the retaining surface along a side edge of the retaining section and side edges of connecting sections, and
the side edge and top sides of the connecting sections contact at least one of a bottom side of the lug and ends of the bottom side of the lug.

14. The disc brake according to claim 13 , wherein
the at least one pad retaining spring includes at least one slot configured to accommodate a guide protrusion of the pad rear plate extending through the at least one slot.

15. The disc brake according to claim 14 , wherein
the at least one slot includes two slots, and
the at least one pad retaining spring includes a recess formed by a reduction in width of the at least one pad retaining spring between the two slots.

16. The disc brake according to claim 14 , wherein
the pressure sections extend laterally away from opposite lateral ends of the top side of the pad rear plate.

17. The disc brake according to claim 16 , wherein
at least one of the pressure sections is supported on the at least one brake carrier horn of the brake carrier.

18. The disc brake according to claim 4 , wherein
the at least one pad retaining spring is located in a form-fitting manner on the pad rear plate.

19. The disc brake according to claim 18 , wherein
the at least one pad retaining spring includes a central section having a retaining section and two connecting sections, arms on opposite sides of the central section between the central section and respective adjacent pressure sections,
the retaining section is located in a form-fitting manner in a retaining opening of the pad rear plate, and
the two connecting sections are located in a slot of the pad rear plate.

20. The disc brake according to claim 19 , wherein
the retaining section has a circular cross section with a central axis running parallel to the axis of rotation of the brake disc, and
the retaining section is configured in a pipe clamp manner with two connecting sections.

21. The disc brake according to claim 20 , wherein
the retaining opening is a through-opening or a blind hole having at least one of a circular cross-section and a polygonal cross-section, and
the retaining opening is spaced radially away from a top side of a fastening section and is connected to the top side by the slot.

22. The disc brake according to claim 21 , wherein
the fastening section protrudes radially away from the top side of the pad rear plate, and
the fastening section is divided by the slot into two subsections, each of the two subsections including a portion of the top side of the pad rear plate.

23. The disc brake according to claim 22 , wherein
the pad retaining spring has a constant width over an entire length of the top of the pad rear plate, and
the pa

Assignees

• Bendix Spicer Foundation Brake
• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Schropp Josef
• Schoenauer Manfred
• Pahle Wolfgang
• Bartel Markus
• Fischl Tobias
• Baumgartner Johann
• Petschke Andreas
• Bohmann Markus
• Lantz Richard
• Tekesky Robert

Classifications

• F16D2065/026

  characterised by a particular outline shape of the braking member, e.g. footprint of friction lining · CPC title

• F16D65/0068

  Brake calipers · CPC title

• F16D65/0974 Primary

  acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis · CPC title

• F16D65/0056

  Brake supports · CPC title

• F16D55/2255

  in which the common actuating member is pivoted · CPC title