Wheel brake arrangement

Patent metadata

Field	Value
Publication number	US-2025137507-A1
Application number	US-202418914448-A
Country	US
Kind code	A1
Filing date	Oct 14, 2024
Priority date	Oct 25, 2023
Publication date	May 1, 2025
Grant date	—

Abstract

A wheel brake arrangement comprising a first brake pad module comprising a first brake pad, and a second brake pad module comprising a second brake pad, a spring arrangement comprising at least one coil spring, a first rod comprising a first end portion attached to a first end of the at least one coil spring and a second end portion operatively connected to the first brake pad module, and a locking arrangement attached to a stationary portion of the wheel brake arrangement, the locking arrangement comprising a first locking member slidable along a surface of the first rod upon moving the first and second brake pads toward each other, and a stop element configured to lock the first locking element to the surface of the first rod upon moving the first brake pad a predetermined distance away from the second brake pad.

First claim

What is claimed is:

1 . A wheel brake arrangement for a wheel of a vehicle, the wheel brake arrangement comprising:
a first brake pad module comprising a first brake pad, and a second brake pad module comprising a second brake pad, the first and the second brake pad modules being axially movable relative to each other; a spring arrangement comprising at least one coil spring, a first rod comprising a first end portion attached to a first end of the at least one coil spring and a second end portion operatively connected to the first brake pad module, wherein a second end of the at least one coil spring is operatively connected to the second brake pad module; and a locking arrangement attached to a stationary portion of the wheel brake arrangement, the locking arrangement comprising a first locking member slidable along a surface of the first rod upon moving the first and the second brake pads toward each other, and a stop element configured to lock the first locking element to the surface of the first rod upon moving the first brake pad a predetermined distance away from the second brake pad.

2 . The wheel brake arrangement of claim 1 , wherein the surface of the first rod is a serrated surface, the first locking element being engaged with a sawtooth of the serrated surface to lock the first locking element to the serrated surface when the first brake pad has moved the predetermined distance away from the second brake pad.

3 . The wheel brake arrangement of claim 2 , wherein the first locking element is a locking cam rotatably attached to the stationary portion of the wheel brake arrangement.

4 . The wheel brake arrangement of claim 3 , wherein the stop element is arranged in abutment with a first portion of the locking cam when the first brake pad has moved the predetermined distance away from the second brake pad to fixate a second portion of the locking cam to the sawtooth of the serrated surface.

5 . The wheel brake arrangement of claim 1 , wherein the stop element is a stop pin.

6 . The wheel brake arrangement of claim 1 , wherein the first rod and the at least one coil spring are arranged coaxially with each other.

7 . The wheel brake arrangement of claim 1 , wherein the first brake pad module further comprises a radially extending plate member, wherein the second end portion of the first rod is attached to the radially extending plate member.

8 . The wheel brake arrangement of claim 7 , wherein the first brake pad module further comprises a first backing plate supporting the first brake pad, wherein the radially extending plate member is attached to the first backing plate.

9 . The wheel brake arrangement of claim 1 , wherein spring arrangement comprises a second rod, the second rod comprising a first end portion attached to the second end of the at least one coil spring, and a second end portion operatively connected to the second brake pad module.

10 . The wheel brake arrangement of claim 9 , wherein the locking arrangement further comprises a second member slidable along a surface of the second rod upon moving the first and the second brake pads toward each other, and a second stop element configured to lock the second locking element to the surface of the second rod upon moving the first and the second brake pads the predetermined distance away from each other.

11 . The wheel brake arrangement of claim 9 , wherein the first rod, the second rod and the at least one coil spring are arranged coaxially with each other.

12 . The wheel brake arrangement of claim 1 , wherein the at least one coil spring comprises a first coil spring and a second coil spring.

13 . The wheel brake arrangement of claim 9 :
wherein the at least one coil spring comprises a first coil spring and a second coil spring; and wherein the first coil spring is attached to the first rod and the second coil spring is attached to the second rod.

14 . The wheel brake arrangement of claim 13 , wherein the spring arrangement further comprises a mounting bracket arranged between the first and second coil springs.

15 . The wheel brake arrangement of claim 1 , further comprising a stationary retainer bar, wherein the stationary portion of the wheel brake arrangement is arranged on a surface of the stationary retainer bar.

16 . The wheel brake arrangement of claim 15 , wherein the at least one coil spring is arranged in a spring housing attached to the stationary retainer bar.

17 . The wheel brake arrangement of claim 1 , wherein the wheel brake arrangement further comprises a rotatable brake disc arranged axially between the first and the second brake pads.

18 . The wheel brake arrangement of claim 17 , wherein the first and the second brake pad modules are movable towards and away from the rotatable brake disc.

19 . A vehicle, comprising the wheel brake arrangement of claim 1 .

Assignees

• Volvo Truck Corp

Inventors

• Mandal Goutam
• Shankar Naveen
• Kumar Amit

Classifications

• F16D55/225

  the braking members being brake pads · CPC title

• F16D65/095

  Pivots or supporting members therefor · CPC title

• F16D2127/02

  Release mechanisms · CPC title

• F16D65/0975

  Springs made from wire · CPC title

• F16D65/54 Primary

  by means of direct linear adjustment · CPC title