US 10,240,649 B2Granted

Caliper for disc brake

AssigneeFreni Brembo S.p.A.

InventorsAndrea Teruzzi, Fabio Scotti

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Abstract

A caliper for disc brake comprising a caliper body housing at least one pair of pads disposed on opposite sides along an axial direction and comprising at least one thrust piston which interfaces with the pad so as to press it against the associable brake disc, and at least one return spring that exerts a return thrust on the support plate of the pad. The return spring comprises a fixing portion to the caliper body that extends from axially opposite sides in separate thrust branches, each thrust branch interfacing with a support plate of a related pad. Each thrust branch comprises a first rectilinear portion that extends towards the corresponding pad, a curved portion, integral with the first rectilinear portion and folded in approach to the fixing portion, a second rectilinear portion that extends from the curved portion in approach to the fixing portion. The second rectilinear portion terminates with a free cantilevered end and interfaces with an edge of the support plate.

Caliper for disc brake comprising a caliper body having a pair of half-bodies interconnected by at least one connection bridge, wherein the caliper body at least partly delimits a housing compartment for an associable disc brake and houses at least one pair of pads disposed on opposite sides to said housing compartment along an axial direction, the pads comprising a support plate and a friction portion suitable to exercise a friction action on the associable brake disc,

the caliper body comprising at least one thrust piston actuatable in parallel to the axial direction, in which the thrust piston interfaces with the support plate of the pad so as to press the friction portion against the associable brake disc,
wherein the caliper body comprises at least one return spring that exerts a return thrust on the support plate of the pad, directed parallel to the axial direction in a direction of approach to the pistons and of moving away from the associable brake disc,
wherein the return spring comprises a fixing portion to the caliper body that extends from axially opposite sides in separate thrust branches, each thrust branch interfacing with a support plate of a related pad,
wherein
each thrust branch comprises
a first rectilinear portion that extends from the fixing portion towards the corresponding pad,
a curved portion, integral with the first rectilinear portion and folded in approach to the fixing portion,
a second rectilinear portion that extends from the curved portion in approach to the fixing portion,
wherein the second rectilinear portion terminates with a free cantilevered end, the second rectilinear portion interfacing with an edge of said support plate and exerting on said return thrust, the cantilevered free end being spaced from the first rectilinear portion and from the fixing portion and
wherein the curved portion terminates with a rectilinear appendage that forms, with the second rectilinear portion, on the side opposite to the cantilevered free end, a substantially right angle.

7 more elements

Facts

Application

15/636,913Filed 29 Jun 2017

Priority

IT UA2016A480130 Jun 2016

Published

US 2018/0003251 A14 Jan 2018

Granted

26 Mar 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16D 55/225
With a common actuating member for the braking members: the braking members being brake pads
F16D 65/097
Pivots or supporting members therefor: resilient means interposed between pads and supporting members or other brake parts
F16D 65/0975
Acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis: springs made from wire
F16D 65/0977
Acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis: springs made from sheet metal

Abstract

Claims11