Disc brake and set of brake pads

Patent metadata

Field	Value
Publication number	US-10036437-B2
Application number	US-201514939748-A
Country	US
Kind code	B2
Filing date	Nov 12, 2015
Priority date	Nov 12, 2015
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

A disc brake for a vehicle, in particular for a commercial vehicle, is provided. The disc brake includes at least one application-side brake pad and a back-side brake pad held in a form-fitting manner in a brake carrier. At least the application-side brake pad is provided with at least one pad-retaining spring which is supported at least on one brake carrier horn of the brake carrier and exerts a radially outwardly acting tensile force on the brake pad.

First claim

What is claimed is:

1. A disc brake for a vehicle, comprising:
a brake disc having a brake disc rotational axis;
a brake carrier configured to straddle the brake disc;
an application-side brake pad and a back-side brake pad with respective back plates configured to be supported directly on the brake carrier in respective brake carrier pad slots;
a brake caliper configured to straddle the brake disc while being supported on the brake carrier in a manner that enables sliding of the brake caliper relative to the brake carrier along a direction parallel to the brake disc rotational axis;
at least one pad-retaining spring coupled to the application side brake pad,
wherein
the brake carrier and at least the application side brake pad have form-fitting complementary contours configured such that the form-fitting complementary contours directly abut one another when at least the application side brake pad is in an installed position in the brake carrier to constrain the application-side brake pad against radial movement away from the brake disc rotational axis, and
the at least one pad-retaining spring is configured to be supported at opposite ends directly on brake carrier horns adjacent to the application-side brake carrier pad slot and to exert a tensile force in a radially outward direction on the application-side brake pad.

2. The disc brake according to claim 1 , wherein
the form-fitting complementary contours include opposing brake carrier projections into the application-side brake carrier pad slot and complementary recesses in opposite lateral sides of the application-side brake pad.

3. The disc brake according to claim 2 , wherein
undercut surfaces of the contours of the brake carrier horns are configured to engage in a play-free manner undercut surfaces of projections of the pad back plate located radially inward of the brake pad recesses.

4. The disc brake according to claim 3 , wherein
the at least one pad-retaining spring is located on an upper side of the application-side brake pad back plate.

5. The disc brake according to claim 4 , wherein
the at least one pad-retaining spring includes a central section, arm sections adjacent to opposite ends of the central section, pressure sections adjacent to the arm sections, and transition sections between the central section and the adjacent arm sections, and
the central section is located on the upper side of the application-side pad back plate such that the transition sections contact the upper side of the application-side brake pad back plate and the pressure sections extend laterally beyond the lateral sides of the application-side brake pad back plate a distance sufficient to be supported on the brake carrier horns.

6. The disc brake according to claim 4 , wherein
the at least one pad-retaining spring includes a central section, arm sections adjacent to opposite ends of the central section, pressure sections adjacent to the arm sections, and intermediate sections between the central section and the adjacent arm sections, and
the central section is attached to the application-side pad back plate by at least one fastening element and the pressure sections extend laterally beyond the lateral sides of the application-side brake pad back plate a distance sufficient to be supported on the brake carrier horns.

7. The disc brake according to claim 6 , wherein
the at least one fastening element includes a transverse section extending through an opening in the application-side brake pad back plate and an upper section extending over the pad-retaining spring such that the pad-retaining spring passes between at least one fastening element and the upper side of the application-side brake pad back plate.

8. The disc brake according to claim 7 , wherein
the pad-retaining spring has at least one aperture through which a side wall section of the at least one fastening element extends.

9. The disc brake according to claim 8 , wherein
the pad-retaining spring has at least one further aperture through which a guide projection of the pad back plate extends.

10. The disc brake according to claim 3 , wherein
the at least one pad-retaining spring includes a spring element at each of opposite lateral sides of the upper side of the application-side brake pad back plate, and
the spring elements at the opposite lateral sides are located on the application-side brake pad back plate and extend over their respective adjacent brake horns.

11. The disc brake of claim 10 , wherein
the spring elements are located on the application-side brake pad back plate on respective spring holders of the back plate above the upper side of the back plate.

12. The disc brake of claim 11 , wherein
the spring elements are held on their respective spring holders by respective retaining elements.

13. The disc brake of claim 12 , wherein
the spring elements are formed from a spring wire material,
the retaining elements are rollers,
the spring elements are configured to be held in a pretensioned manner on upper side of the application-side brake pad back plate by their respective retaining elements, and
the spring elements extend laterally beyond the lateral sides of the application-side brake pad back plate a distance sufficient to be supported on the brake carrier horns.

14. The disc brake of claim 13 , wherein
the pad-retaining springs each include a central section, transition sections at opposite ends of their respective central sections, a pressure section configured to be supported on the respective brake carrier horn and a bearing section configured to be supported on the upper side of the application-side brake pad back plate.

15. Brake pads for a sliding caliper disc brake, comprising:
an application-side brake pad including an application-side back plate;
a back-side brake pad including a back-side back plate; and
at least one pad-retaining spring on at least the application-side brake pad coupled to an upper side of the application-side brake pad back plate,
wherein
the application side brake pad back plate is operationally configured to cooperate with form-fitting complementary contours of a brake carrier such that the form-fitting complementary contours directly abut the application side brake pad back plate when the application side brake pad is in an installed position in the disc brake to constrain the application-side brake pad against movement in a radially outward direction relative to a brake disc rotational axis located radially inward of the brake carrier when the brake carrier is in an installed position in the disc brake, and
the at least one pad-retaining spring includes at least one pressure section extending laterally beyond a lateral side of the application-side brake pad back plate a distance sufficient to permit the at least one pressure section, when the application-side brake pad in an installed position on the disc brake, to be directly supported on a respective adjacent application-side brake carrier horn of the brake carrier such that the at least one pad-retaining spring exerts a tensile force in a radially outward direction on the installed application-side brake pad.

16. The brake pads for a sliding caliper disc brake of claim 15 , wherein
the back-side brake pad back plate is operationally configured to cooperate with form-fitting complementary contours of the brake carrier to constrain the back-side brake pad against movement in the radially outward direction when the back-side brake pad is in an installed position in the disc brake,
the at least one pad-retaining spring includes a back-side pad-retaini

Assignees

• Bendix Spicer Foundation Brake

Inventors

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

Classifications

• F16D65/0976

  acting on one pad only · CPC title

• F16D2250/0084

  Assembly or disassembly · CPC title

• F16D65/0978 Primary

  acting on one pad only · CPC title

• F16D55/226

  in which the common actuating member is moved axially {, e.g. floating caliper disc brakes} · CPC title

• F16D2065/026

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