Disc brake for a utility vehicle, brake pad and brake pad set

Patent metadata

Field	Value
Publication number	US-11060574-B2
Application number	US-201816196951-A
Country	US
Kind code	B2
Filing date	Nov 20, 2018
Priority date	May 20, 2016
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A disc brake for a utility vehicle, with a brake caliper which overlaps a brake disc, is preferably designed as a sliding caliper, is fastened to a positionally fixed brake carrier and has a central caliper opening above the brake disc, with an application device for applying the brake, and with two brake pads which are insertable through the caliper opening and each have a pad carrier and a friction pad fastened thereto, of which brake pads the one brake pad, as an application-side brake pad, can be pressed against the brake disc on the one side of the brake disc by the application device, and the other, as a reaction-side brake pad, is arranged on the opposite side of the brake disc, is distinguished in that a holding-down clamp is provided which is designed in such a manner that it radially secures only one of the two brake pads in the pad slot.

First claim

What is claimed is:

1. A disc brake for a utility vehicle, comprising:
a) a brake caliper which engages over a brake disc and which is designed as a sliding caliper and which is arranged on a positionally fixed brake carrier, and having an application device for applying the brake;
b) two brake pads which each have a pad carrier and a friction pad fastened to said pad carrier and of which one, as an application-side brake pad, is pressable by the application device against the brake disc on one side of the brake disc and of which the other, as a reaction-side brake pad, is arranged on the opposite side of the brake disc and which are each inserted into a pad slot;
c) a central caliper opening of the brake caliper over the brake disc, through which caliper opening the two brake pads are inserted into their respective pad slots, wherein
d) a hold-down clip designed so as to radially secure only the reaction-side brake pad one of the two brake pads in a reaction side pade slot of the respective pad slots and
e) the hold-down clip is, with its end averted from the reaction-side brake pad, held on the brake caliper,
wherein the application-side brake pad is secured radially in an application side pad slot of the respective pad slots in the fixed brake carrier by form-fitting mutually-opposite lateral projections of the application-side pad carrier engaging corresponding undercuts formed in mutually-opposite application-side brake carrier horns of the fixed brake carrier.

2. The disc brake as claimed in claim 1 , wherein
the hold-down clip engages over only the reaction-side brake pad entirely or partially axially parallel with respect to the brake disc and radially secures it in its pad slot.

3. The disc brake as claimed in claim 1 , wherein
the hold-down clip is, with its end averted from the reaction-side brake pad, held releasably on the brake caliper.

4. The disc brake as claimed in claim 1 , wherein
the hold-down clip is fixed to the reaction-side brake pad by being non-releasably fixed to a part of the reaction-side brake pad.

5. The disc brake as claimed in claim 4 , wherein
the hold-down clip is fixed to a cover and/or to a pad spring of the reaction-side brake pad.

6. The disc brake as claimed in claim 5 , wherein
the pad spring entirely or partially extends through the cover.

7. The disc brake as claimed in claim 5 , wherein
the pad spring is formed in one piece with the cover or is cohesively connected to the cover.

8. The disc brake as claimed in claim 5 , wherein
the hold-down clip is connected in form-fitting fashion to the cover.

9. The disc brake as claimed in claim 1 , wherein
the pad slot of the reaction-side brake pad is formed in the brake carrier or in the brake caliper, and
the pad slot of the application-side brake pad is formed in the brake carrier.

10. The disc brake as claimed in claim 1 , wherein
the hold-down clip is releasably or non-releasably fastened to the brake caliper or is formed in one piece therewith.

11. The disc brake as claimed in claim 1 , further comprising:
a cable bridge on which at least one signal cable is arranged and held, which cable bridge bridges the opening of the brake caliper and is fastened directly or indirectly to the brake caliper in at least two regions.

12. The disc brake as claimed in claim 11 , wherein
the cable bridge has a web section which, at its two mutually averted ends, has first and second fasteners which are designed for fastening the cable bridge to corresponding first and second counterpart fasteners of the brake caliper.

13. The disc brake as claimed in claim 12 , wherein
the first and second fasteners of the cable bridge and the corresponding first and second counterpart fasteners of the brake caliper form, on one side of the opening, a substantially tolerance-free first fastening and, on the other side of the opening of the brake caliper, a second fastening with tolerance-compensating action.

14. The disc brake as claimed in claim 12 , wherein
the first and second fasteners are formed as a hole and as an elongated hole.

15. The disc brake as claimed in claim 12 , wherein
the first and second fasteners are formed as a hole and as an elongated hole, which are each extended through by a screw or a pin which are fixed to the brake caliper.

16. The disc brake as claimed in claim 15 , wherein
the pin also serves for the fastening of the hold-down clip.

17. The disc brake as claimed in claim 11 , wherein
the cable bridge is fastened in force-fitting and/or form-fitting fashion to a web of the hold-down clip.

18. A reaction-side brake pad for a disc brake as claimed in claim 1 , which reaction-side brake pad has a pad carrier and a friction pad fastened thereto,
wherein said reaction-side brake pad is designed for interacting with the hold-down clip such that the hold-down clip radially secures only the reaction-side brake pad in its pad slot on the disc brake.

19. The brake pad as claimed in claim 18 , wherein
said reaction-side brake pad is designed as a structural unit with the hold-down clip such that the hold-down clip radially secures only the reaction-side brake pad in its pad slot on a disc brake.

20. The brake pad as claimed in claim 18 , wherein
the hold-down clip is non-detachably fixed to the reaction-side brake pad.

21. The brake pad as claimed in claim 18 , wherein
the hold-down clip is fastened to a cover, a pad spring, or the cover and the pad spring.

22. The brake pad as claimed in claim 21 , wherein
the hold-down clip is formed in one piece with the cover.

23. The brake pad as claimed in claim 21 , wherein
the hold-down clip is connected to the cover cohesively, in a form-fitting fashion, or cohesively and in form-fitting fashion.

24. A brake pad set, comprising the reaction-side brake pad as claimed in claim 18 and the application-side brake pad which is secured radially in the brake carrier by the form-fitting mutually-opposite lateral projections of the application-side brake pad carrier as claimed in claim 18 .

25. A brake pad set, comprising:
a reaction-side brake pad having friction material arranged on a reaction-side pad carrier; and
an application-side brake pad having friction material arranged on an application-side pad carrier,
wherein
the application-side brake pad includes mutually-opposite lateral projections on the application-side pad carrier that are configured to cooperate with corresponding recesses in application-side brake horns of a brake carrier of a disc brake for a utility vehicle to secure the application-side brake pad in the disc brake without an application-side brake pad holding device located radially outward of the application-side brake pad, and
the reaction-side brake pad is configured to be secured in a reaction-side pad slot of the disc brake by a hold down clip that does not extend to the application-side brake pad.

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Fischl Tobias
• Pritz Wolfgang
• Petschke Andreas
• Schropp Josef
• Dahlenburg Julian Cato
• Bartel Markus

Classifications

• F16D55/226 Primary

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

• F16D65/0974

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

• F16D2250/0084

  Assembly or disassembly · CPC title

• F16D55/227 Primary

  by two {or more} pins · CPC title

• F16D65/0978

  acting on one pad only · CPC title