Brake caliper with cover

Patent metadata

Field	Value
Publication number	US-12516705-B2
Application number	US-202217869059-A
Country	US
Kind code	B2
Filing date	Jul 20, 2022
Priority date	Jul 28, 2021
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

The present disclosure relates to a brake calliper for a disc brake. The brake calliper comprises a supporting structure, a cover with a pin, and a fixing disc. The supporting structure has a bridge and at least one bridge finger which has a brake lining side, an outer side and a bore which is incorporated into the outer side and which runs from the outer side in the direction of the brake lining side. The cover has a pin protruding into the bore. The fixing disc has a disc edge which has an outer diameter D and which is positively held in the bore and with a disc center which has a through-opening, through which the pin protrudes. The disc center has a clamping region which is bulged relative to the disc edge in the direction of the brake lining side and which fixedly clamps the pin in the through-opening by a clamping edge. The disclosure also relates to such a fixing disc itself.

First claim

The invention claimed is:

1 . A brake calliper for a disc brake, comprising:
a supporting structure with a bridge and at least one bridge finger which has a brake lining side, an outer side and a bore which is incorporated into the outer side and which runs from the outer side in a direction of the brake lining side, wherein the bore has a groove;
a cover with a pin protruding into the bore,
a fixing disc with a disc edge which has an outer diameter and which is positively held in the groove of the bore and with a disc center which has a through-opening, through which the pin protrudes,
wherein the disc center has a clamping region which is bulged relative to the disc edge in the direction of the brake lining side and which fixedly clamps the pin in the through-opening a clamping edge, and wherein the bore has between the outer side and the groove, a portion in which the bore tapers in the direction of the brake lining side, and wherein a cylindrical bore portion is present between the tapered and the groove, the axial extent of the cylindrical bore portion being smaller than or equal to an axial extent of the tapered.

2 . A brake calliper for a disc brake, comprising:
a supporting structure with a bridge and at least one bridge finger which has a brake lining side, an outer side and a bore which is incorporated into the outer side and which runs from the outer side in a direction of the brake lining side,
a cover with a pin protruding into the bore,
a fixing disc with a disc edge which has an outer diameter and which is positively held in the bore and with a disc center which has a through-opening, through which the pin protrudes,
wherein the disc center has a clamping region which is bulged relative to the disc edge in the direction of the brake lining side and which fixedly clamps the pin in the through-opening a clamping edge,
wherein the bore has a groove in which the disc edge engages and wherein the bore has between the groove and the brake lining side, a portion in which the bore tapers in the direction of the brake lining side.

3 . The brake calliper according to claim 2 ,
wherein the bore has between the outer side and the groove a portion in which the bore tapers in the direction of the brake lining side.

4 . The brake calliper according to claim 2 ,
wherein the fixing disc has a material thickness which extends from a first side to a second side of the fixing disc, and wherein the fixing disc has a height which is larger than the material thickness due to the bulged clamping region.

5 . The brake calliper according to claim 4 ,
wherein the bulged clamping region has a shape of a hollow truncated cone, wherein in a state of the fixing disc not mounted in the bore and not mounted on the pin, the cone opening angle α is between 100° and 140°, and wherein the disc edge is configured in an annular manner between the outer diameter and the bulged clamping region with a height which is equal to the material thickness.

6 . The brake calliper according to claim 4 ,
wherein the fixing disc has a wedge-shaped slot cutting through the material thickness and passing through from the through-opening to the outer diameter, wherein in a state of the fixing disc not mounted in the bore and not mounted on the pin, the slot has a first width measured at the transition with the through-opening, wherein in a state of the fixing disc mounted in the bore and mounted on the pin, the slot has a second width measured at the transition with the through-opening, and wherein the second width is smaller than the first width.

7 . The brake calliper according to claim 6 ,
wherein the slot is arranged in the profile of a clamping edge portion and cuts through the latter.

8 . The brake calliper according to claim 2 ,
wherein starting from the through-opening at least one incision running in a direction of the disc edge, cuts into the bulged clamping region, wherein the incision along the clamping edge forms an interruption portion which extends over a first angle and a clamping edge portion which extends over a second angle, wherein the second angle is greater than the first angle, wherein vertices of the angles first and second angles in each case lie in the disc centre.

9 . The brake calliper according to claim 8 ,
wherein a plurality of incisions are present, as a result of which there are a plurality of interruption portions, and a plurality of clamping edge portions.

10 . The brake calliper according to claim 9 ,
wherein, starting from the through-opening, a width of the incisions decreases in the direction of the disc edge.

11 . The brake calliper according to claim 10 ,
Wherein a deepest point of the incisions has a semicircular shape.

12 . The brake calliper according to claim 8 , wherein the second angle is at least twice as great as the first angle.

13 . The brake calliper according to claim 12 , wherein a material of the pin, is softer than a material of the the clamping edge.

14 . The brake calliper according to claim 2 , wherein the bore has between the groove and the brake lining side, a portion in which the bore tapers in the direction of the brake lining side, and wherein this tapered portion directly adjoins the groove.

15 . The brake calliper according to claim 2 , wherein the fixing disc has a material thickness which extends from a first side to a second side of the fixing disc, and
wherein the fixing disc has a height which is larger than the material thickness due to the bulged clamping region.

16 . The brake calliper according to claim 2 , wherein a material of the pin is softer than a material of the clamping edge.

17 . A brake calliper for a disc brake, comprising:
a supporting structure with a bridge and at least one bridge finger which has a brake lining side, an outer side and a bore which is incorporated into the outer side and which runs from the outer side in a direction of the brake lining side,
a cover with a pin protruding into the bore,
a fixing disc with a disc edge which has an outer diameter and which is positively held in the bore and with a disc center which has a through-opening, through which the pin protrudes,
wherein the disc center has a clamping region which is bulged relative to the disc edge in the direction of the brake lining side and which fixedly clamps the pin in the through-opening a clamping edge, wherein, starting from a bearing side, the pin tapers, towards a pin end in a holding region which extends over a length, wherein the pin has a total length, wherein the holding region has a greatest lengthwise proportion of the total length, and wherein a length ratio of the length to total length is greater than 0.5.

Assignees

• Zf Active Safety Gmbh

Inventors

• Zenzen Guido
• Schwenzer Philipp
• Becker Marco
• Roessinger Florian

Classifications

• F16D65/12

  Discs; Drums for disc brakes · CPC title

• F16D2055/0037

  Protective covers · CPC title

• F16D2055/0016

  Brake calipers · CPC title

• F16D65/0068

  Brake calipers · CPC title

• F16D55/226 Primary

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