Pad and spring assembly for a disc brake caliper

Patent metadata

Field	Value
Publication number	US-10697504-B2
Application number	US-201615547332-A
Country	US
Kind code	B2
Filing date	Jan 27, 2016
Priority date	Jan 30, 2015
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

An assembly ( 1 ) for a disc brake caliper ( 100 ), in which, when said caliper ( 101 ) is arranged astride a disc ( 3 ) of a disc brake ( 100 ) having a defined rotation axis (C), said assembly ( 1 ) defines an axial direction (X-X) parallel to said rotation axis (C), a radial direction (R-R) orthogonal to said axial direction (X-X) and a tangential or circumferential direction (T-T) orthogonal to both the axial direction (X-X) and the radial direction (R-R), said assembly ( 1 ) comprises:
a first pad ( 10 ) comprising a friction material ( 12 ), defining a friction surface, and a support plate ( 13 ) which supports said friction material ( 12 ) and is adapted to release the braking action onto the caliper ( 101 ) of the disc brake ( 100 ), in which said support plate ( 13 ) comprises at least one lateral projection ( 14 ) which extends in a direction substantially coplanar to the plate ( 13 ) and is placed at an end of the support plate ( 13 ), and in which said at least one lateral projection ( 14 ) is adapted to be accommodated in a pocket ( 19 ) obtained in the body of the caliper ( 101 ); said assembly ( 1 ) further comprising at least one spring ( 30 ), in which said spring ( 30 ) is connected to said lateral projection ( 14 ) of said support plate ( 13 ), and in which said spring ( 30 ) being adapted to be accommodated in a seat ( 34 ) obtained in the body of the caliper ( 101 ) at said pocket ( 19 ), and in which said spring ( 30 ) is adapted to be inserted in said seat ( 34 ) to be fastened in an undercut manner against said undercut surface ( 34 ) to bias said pad ( 10 ) in the axial direction (X-X).

First claim

The invention claimed is:

1. A brake caliper, suitable to be arranged astride a disc of a brake disc having a defined rotation axis, comprising:
a caliper body,
and at least one assembly of pad and spring, comprising:
at least one pad, having friction material and a support plate supporting the friction material;
at least one leaf spring having a hooked end;

wherein said support plate comprises at least one lateral projection which extends in a direction substantially coplanar with the support plate and is placed at opposite ends of the support plate;
and wherein said at least one leaf spring is connected to the lateral projection;
and wherein said assembly defines an axial direction parallel to the rotation axis of the disc, a radial direction orthogonal to the axial direction, and a tangential direction orthogonal to both the axial direction and the radial direction;
said caliper body comprises an inner side and an outer side,
wherein said outer side of the caliper body comprises an inner surface, able to face the at least one pad and a brake disc, and an opposite outer surface;
and wherein said outer side comprises:
at least one pocket accommodating at least one lateral projection of the at least one pad,
and at least one seat accommodating said at least one leaf spring,
wherein said at least one seat passing through the caliper body,
said at least one leaf spring is inserted in said at least one seat to be fastened in an undercut manner against an undercut surface of the caliper body to bias the at least one pad in the axial direction;
wherein said pocket is made in the form of a through hole in the caliper body with a closed cross-section.

2. The brake caliper of claim 1 , wherein said seat is a through hole.

3. The brake caliper of claim 1 , wherein said support plate comprises one further lateral projection so that to comprise at least one pair of opposite lateral projections placed at opposite ends of the support plate, and said at least one assembly comprises a further leaf spring so as to comprise at least one pair of leaf springs, each leaf spring is connected to a respective lateral projection.

4. The brake caliper of claim 3 , wherein each of said leaf springs is each in one piece.

5. The brake caliper of claim 1 , wherein a first end of the at least one leaf spring exchanges force in the radial direction with walls of said at least one pocket and said lateral projections of the support plate.

6. The brake caliper of claim 5 , wherein a second hooked end of said at least one leaf spring exchanges forces in the axial direction with said undercut surface of the caliper body.

7. The brake caliper of claim 1 , wherein said at least one leaf spring snap-fastens in an undercut manner to the caliper body.

8. The brake caliper of claim 1 , wherein said caliper body is a floating caliper comprising a bracket suitable to be arranged only on one side of the associable disc, said bracket supports said caliper body in a sliding manner.

9. The brake caliper of claim 1 , wherein said at least one leaf spring is made of steel.

10. The brake caliper of claim 1 , said at least one leaf spring cooperates with walls of said at least one pocket to bias the pad in respect to the caliper body in the radial direction.

Assignees

• Freni Brembo Spa

Inventors

• Tomasz Woloszyn
• Berra Simone
• Ratti Marco

Classifications

• F16D65/0979

  acting on the rear side of the pad or an element affixed thereto, e.g. spring clips securing the pad to the brake piston or caliper · CPC title

• F16D65/0978

  acting on one pad only · CPC title

• F16D55/2265 Primary

  the axial movement being guided by one or more pins {engaging bores in the brake support or the brake housing} · CPC title

• F16D55/227

  by two {or more} pins · CPC title