BRAKE CALIPER HAVING A FACEPLATE

Abstract

The present disclosure relates to a brake caliper for a disk brake comprising a supporting structure having a bridge and at least one bridge finger. The at least one bridge finger has a brake lining side, an outer side and a bore, that extends into the outer side. The bore has a bore axis and a bore wall. A profiling is recessed into the bore wall. A faceplate having a peg, projects into the bore and has a peg circumferential surface. A sleeve, which has a sleeve body is arranged between the bore wall and the peg circumferential surface. The sleeve has a spring arm, which is bent outwardly in the radial direction away from the sleeve body. The profiling is designed in such a way that the outwardly bent spring arm can latch into the profiling at various points of the profiling in the axial direction of the bore axis.

Claims

1. A brake caliper for a disk brake comprising: a supporting structure having a bridge and at least one bridge finger, wherein the at least one bridge finger has a brake lining side, an outer side and a bore, wherein the bore is introduced into the outer side and has a bore axis and a bore wall, a bore groove extending into the bore wall, a faceplate having a peg, which projects into the bore and has a peg circumferential surface, a sleeve, which has a sleeve body and is arranged between the bore wall and the peg circumferential surface, wherein the sleeve has a spring arm, which is bent outwardly in the radial direction away from the sleeve body, wherein profiling is designed in such a way that the outwardly bent spring arm can latch into the profiling at various points of the profiling in an axial direction of the bore axis.

2. The brake caliper as claimed in claim 1, wherein the sleeve has a sleeve longitudinal axis, wherein, in a no-load state, a bending angle of the outwardly bent spring arm relative to the sleeve longitudinal axis is less than 90°, in particular loss than and wherein the bending angle of the outwardly bent spring arm decreases when the sleeve is inserted into the bore.

3. The brake caliper as claimed in claim 1, wherein, in an engaged state, there is a positive connection between the sleeve, and the profiling, at least counter to the insertion direction of the peg and of the sleeve into the bore.

4. The brake caliper as claimed in claim 1, wherein the faceplate has a visible side and a contact side, wherein the peg is arranged on the contact side and wherein the profiling is arranged such that its longitudinal extent, in the axial direction of the bore axis, is that the outwardly bent spring arm is latched in the profiling when the faceplate is resting with its contact side against the outer side of the bridge finger.

5. The brake caliper as claimed in claim 1, wherein the profiling comprises an internal thread and wherein a thread flight or thread flights of the internal thread provide the various locations at which the outwardly bent spring arm can latch in.

6. The brake caliper as claimed in claim 1, wherein there is a frictional and/or a positive connection between the peg and the sleeve.

7. The brake caliper as claimed in claim 6, wherein the peg circumferential surface has at least one circumferential groove, and wherein the sleeve is fixed axially on the peg in a positive-locking manner by the at least one circumferential groove.

8. The brake caliper as claimed in claim 7, wherein the sleeve comprises a spring arm bent radially inwardly away from the sleeve body, wherein, in a no-load state, a bending angle of the inwardly bent spring arm relative to a sleeve longitudinal axis is less than 90°, and wherein the inwardly bent spring arm engages in the circumferential groove.

9. The brake caliper as claimed in claim 6, wherein the sleeve has, at one of its ends, a radially inwardly directed bent-over portion, against which an end face of the peg rests, wherein the bent-over portion is formed by a plurality of bent-over sections along its bending edge.

10. The brake caliper as claimed in claim 7, wherein the sleeve is fixed axially on the peg by fitting the sleeve body into the circumferential groove.

11. The brake caliper as claimed in claim 1, wherein, in the no-load state, the bending angle of the outwardly bent spring arm relative to the sleeve longitudinal axis is less than 60°.

12. The brake caliper as claimed in claim 2, wherein, in an engaged state, there is a positive connection between the spring arm (32), and the profiling, at least counter to the insertion direction of the peg and of the sleeve into the bore.

13. The brake caliper as claimed in claim 8, wherein, in the no-load state, the bending angle of the inwardly bent spring arm relative to the sleeve longitudinal axis is less than 60°.

14. The brake caliper as claimed in claim 3, wherein the faceplate has a visible side and a contact side, wherein the peg is arranged on the contact side and wherein the profiling is arranged such that its longitudinal extent, in the axial direction of the bore axis, is that the outwardly bent spring arm is latched in the profiling when the faceplate is resting with its contact side against the outer side of the bridge finger.

15. The brake caliper as claimed in claim 14, wherein the profiling comprises an internal thread and wherein a thread flight or thread flights of the internal thread provide the various locations at which the outwardly bent spring arm can latch in.

16. The brake caliper as claimed in claim 15, wherein there is a frictional and/or a positive connection between the peg and the sleeve.

17. The brake caliper as claimed in claim 7, wherein the sleeve has, at one of its ends, a radially inwardly directed bent-over portion, against which an end face of the peg rests, wherein the bent-over portion is formed by a plurality of bent-over sections along its bending edge.

18. The brake caliper as claimed in claim 8, wherein the sleeve has, at one of its ends, a radially inwardly directed bent-over portion, against which an end face of the peg rests, wherein the bent-over portion is formed by a plurality of bent-over sections along its bending edge.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0033] Various exemplary arrangements of the brake caliper according to the disclosure are explained below with reference to the schematic illustrations in FIGS. 1 to 5:

[0034] FIG. 1 shows one exemplary arrangement of the brake caliper according to the disclosure with a faceplate in the manner of an exploded illustration;

[0035] FIG. 2 is the partial view of an exemplary arrangement of the disclosure in sectional view;

[0036] FIG. 3 shows a section of material in the region of the bore and, in part, the contours of the sleeve and bore in sectional illustration;

[0037] FIGS. 4a to 4e show various exemplary arrangements of the sleeve and the peg according to the disclosure;

[0038] FIG. 5 shows one exemplary arrangement of the sleeve according to the disclosure; and

[0039] FIGS. 6a, 6b show exemplary arrangements of the sleeve with bent-over portions at the end.

DETAILED DESCRIPTION

[0040] In one exemplary arrangement of the disclosure, a faceplate 20 is mounted on a brake caliper 1, as shown, for example, in FIG. 1. The brake caliper is designed as a cast metal part. For a better illustration of the corresponding structure, the parts are shown in an exploded view. The brake caliper 1 comprises a supporting structure 2 having an actuator receptacle 3 for receiving a brake actuator, a brake caliper fastening 4 and a bridge 5. The bridge is adjoined by two bridge fingers 6, which are arranged spaced apart. The bridge fingers 6 have a brake lining side 7 and an outer side 8, which serves as a contact for the faceplate 20. In the state of final assembly on a vehicle, the brake pistons, brake linings and brake disk (not illustrated) are arranged between the actuator receptacle 3 and the brake lining side 7.

[0041] A bore 10 is made in the outer side 8 of each of the bridge fingers 6. The size of the faceplate 20 is such that it covers the bridge fingers 6 and the free space 9 between the bridge fingers 6. The faceplate 20 has a visible side 25 and a contact side 26 and two pegs 21, which are arranged in such a way that they correspond spatially to the bores 10. The visible side 25 faces away from the brake caliper 1, and the contact side 26 rests against the outer side 8 of the bridge fingers 6. This arrangement is also illustrated in FIG. 2. A metal sleeve 30 is placed on each of the pegs 21, and the pegs 21 with the sleeves 30 are inserted into the bores 10.

[0042] As shown in FIG. 2, the peg 21 has a circumferential groove 23, and the bore 10 has profiling 12, which is embodied as an internal thread 13. The sleeve 30 has, on its end 40, a radially inwardly bent bent-over portion 34, which rests by its inner side against an end 24 of the peg 21 and thus fixes the sleeve 30 on the peg 21. The bent-over portion 34 is also illustrated in FIGS. 6a and 6b. On its opposite end, the sleeve 30 furthermore has extensions, which are arranged in a manner distributed over the circumference of the sleeve and form radially outwardly bent spring arms 32. The ends of the spring arms 32 engage in the thread flight 14 of the internal thread 13. At an axial distance from the outwardly bent spring arms 32, the sleeve 30 has sleeve webs, which are arranged in a manner distributed over the circumference of the sleeve and are partially exposed, and which form radially inwardly bent spring arms 33. The ends of the spring arms 33 engage in the circumferential groove 23 of the peg 21. The engagement of the spring arms 32 in the thread results in secure retention of the faceplate 20 on the brake caliper 1 at the corresponding inserted position into which the peg 21 with the sleeve 30 is pushed into the bore 10, especially in the fully inserted position under consideration here, in which the faceplate 20 rests with its contact side 26 against the outer side 8 of the bridge fingers 6.

[0043] FIG. 6b shows an alternative exemplary arrangement of the bent-over portion 34. Here, the bent-over portion 34 is interrupted by notches, as a result of which a plurality of bent-over sections 35 is formed. The notches extend approximately as far as the bending edge 41 of the bent-over portion 34.

[0044] FIG. 3 illustrates an exemplary arrangement of the disclosure which corresponds to the example shown in FIG. 2, in which, however, the sleeve 30 does not have a bent-over portion 34 at the end. The contours of the corresponding sleeve 30 are illustrated in section in FIG. 3. In this exemplary arrangement, a peg 21, with or without a circumferential groove 23, can be inserted into the sleeve 30, and the sleeve 30 is accordingly held on the peg 21 non-positively or in a positive-locking manner. The radially outwardly bent spring arms 32 engage in the internal thread 13. A sleeve 30 of this kind is likewise illustrated in FIG. 5.

[0045] FIGS. 4a to 4e show, in highly schematic form, various design possibilities for the sleeve 30 and the peg 21 within the scope of the disclosure.

[0046] In FIG. 4a, the sleeve 30 is held non-positively on the peg 21, while the radially outwardly bent spring arm 32 is latched in the profiling 12, which is recessed into the bore wall 11.

[0047] The exemplary arrangement from FIG. 4b differs from the exemplary arrangement in FIG. 4a in that a radially inwardly bent spring arm 33 of the sleeve 30 engages in a circumferential groove 23 of the peg 21.

[0048] The exemplary arrangement from FIG. 4c differs from the exemplary arrangement in FIG. 4a in that the sleeve 30 is fitted with its sleeve body 31 into a circumferential groove 23 of the peg 21 and is held in a positive-locking manner in the axial direction.

[0049] The exemplary arrangement from FIG. 4d differs from the exemplary embodiment in FIG. 4b in that the sleeve 30 has a bent-over portion 34 at the end, by which it rests against the end 24 of the peg 21.

[0050] The exemplary arrangement according to FIG. 4e corresponds to the exemplary arrangement according to FIG. 4b. However, the circumferential groove 23 extends up to the contact side 26 of the faceplate 20. In this exemplary arrangement, the sleeve 30 can be held non-positively in the circumferential groove 23 or on the groove base and/or positively by the side wall 27 of the groove 23.