Guide Pin For Disc Brake Assembly And Disc Brake Assembly Including Such A Guide Pin

• US 20140116817A1
• Filed: 11/01/2012
• Published: 05/01/2014
• Est. Priority Date: 11/01/2012
• Status: Active Grant

• Current Assignee: Kelsey-Hayes Co. (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: Kelsey-Hayes Co. (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Morais, Eduardo, Smith, Daniel, Gerber, Kraig
• Granted Patent: US 9,587,686 B2
• Time in Patent Office: Days
• US Class Current: 188/73.45
• CPC Class Codes: F16D 55/2265 the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
• CPC Class Codes: F16D 55/227 by two or more pins

Abstract

A disc brake assembly comprises: an anchor bracket having at least one bore formed therein, the bore defining a first axis; a brake caliper slidably secured to the anchor bracket; a pair of brake pads carried by the disc brake assembly; and at least one guide pin adapted to be disposed in the bore of the anchor bracket, the at least one guide pin defining a second axis; wherein when the at least one guide pin is disposed in the at least one bore of the anchor bracket, the second axis of the at least one guide pin is configured to be offset relative to the first axis of the at least one bore such that there is provided at least one defined point of contact between only a portion of a shank portion of the at least one guide pin and a portion of an inner surface of the at least one bore.

Claims

1. A disc brake assembly comprising:

an anchor bracket having at least one bore formed therein, the bore defining a first axis;

a brake caliper slidably secured to the anchor bracket;

a pair of brake pads carried by the disc brake assembly; and

at least one guide pin adapted to be disposed in the bore of the anchor bracket, the at least one guide pin defining a second axis;

wherein when the at least one guide pin is disposed in the at least one bore of the anchor bracket, the second axis of the at least one guide pin is configured to be offset relative to the first axis of the at least one bore such that there is provided at least one defined point of contact between only a portion of a shank portion of the at least one guide pin and a portion of an inner surface of the at least one bore.

2. The disc brake assembly of claim 1 wherein at least one spring-like member, which is formed separate from the at least one guide pin, is provided, and wherein the at least one spring-like member is operative to bias in a spring-like manner the at least one guide pin in the at least one bore thereby offsetting the second axis of the at least one guide pin relative to the first axis of the at least one bore.

3. The disc brake assembly of claim 2 wherein the at least one spring-like member is secured to one of the at least one guide pin and the at least one bore.

4. The disc brake assembly of claim 2 wherein the at least one spring-like member is formed from an elastomer material.

5. The disc brake assembly of claim 4 wherein the at least one spring-like member is a rubber bushing.

6. The disc brake assembly of claim 2 wherein the at least one spring-like member is a sheath-like member.

7. The disc brake assembly of claim 2 wherein the at least one spring-like member is disposed in a slot provided in the at least one guide pin.

8. The disc brake assembly of claim 2 wherein the at least one bore is a two-part bore including a first bore, which is configured to receive the at least one guide pin, and a second bore, which is configured to receive only at least a part of the at least one spring-like member.

9. The disc brake assembly of claim 1 wherein the at least one guide pin includes at least one lateral flat surface provided thereon on at least the shank portion thereof.

10. A disc brake assembly comprising:

an anchor bracket having a pair of bores formed therein, the bore defining a first axis;

a brake caliper slidably secured to the anchor bracket;

a pair of brake pads carried by the disc brake assembly; and

a pair of guide pins a respective one of which is adapted to be disposed in the bore of the anchor bracket, the at least one guide pin defining a second axis;

wherein a pair of spring-like members, which are formed separate from the guide pins, is provided, and wherein when the guide pins are disposed in the bores of the anchor bracket, the second axis of the guide pins is configured to be offset relative to the first axis of the bores by the spring-like members such that there is provided at least one defined point of contact between only a portion of a shank portion of each of the guide pins and a portion of an inner surface of each of the bores.

11. The disc brake assembly of claim 10 wherein the spring-like members are secured to one of the guide pins and the bores.

12. The disc brake assembly of claim 10 wherein the spring-like members are formed from an elastomer material.

13. The disc brake assembly of claim 10 wherein the spring-like members are rubber bushings.

14. The disc brake assembly of claim 10 wherein the spring-like members are sheath-like members.

15. The disc brake assembly of claim 10 wherein the spring-like member is disposed in a slot provided in the guide pin.

16. The disc brake assembly of claim 10 wherein the bores are two-part bores each including a first bore, which is configured to receive the guide pins, and a second bore, which is configured to receive only at least a part of the spring-like members.

17. The disc brake assembly of claim 10 wherein the guide pins include at least one lateral flat surface provided thereon on at least the shank portion thereof.

18. A disc brake assembly comprising:

an anchor bracket having at least one bore formed therein, the bore defining a first axis;

a brake caliper slidably secured to the anchor bracket;

a pair of brake pads carried by the disc brake assembly; and

at least one guide pin adapted to be disposed in the bore of the anchor bracket, the at least one guide pin defining a second axis;

wherein a rubber bushing member, which is formed separate from the at least one guide pin, is provided, and wherein when the at least one guide pin is disposed in the at least one bore of the anchor bracket, the second axis of the at least one guide pin is configured to be offset relative to the first axis of the at least one bore by the rubber bushing member such that there is provided at least one defined point of contact between only a portion of a shank portion of the at least one guide pin and a portion of an inner surface of the at least one bore.

19. The disc brake assembly of claim 18 wherein the at least one spring-like member is secured to one of the at least one guide pin and the at least one bore.

20. The disc brake assembly of claim 18 wherein the at least one spring-like member is disposed in a slot provided in the at least one guide pin.