Brake assembly having a retraction spring and method of assembly
AssigneeArvinMeritor Technology, LLC
InventorsAlex Adkins, Phil Leicht, Daniel Philpott, Sukrut Sakhare, Chris Polmear
Life of this patent
Estimating the term…
Abstract
A brake assembly having a retraction spring and a method of assembly. The retraction spring may extend between first and second brake pad assemblies. The retraction spring may include a coil and, may have an end or tip that may be received in a hole in a backplate of a. brake'pad assembly.
Claims20
A brake assembly comprising:
- a first brake pad assembly that includes:
- a friction material having a first lateral side, a second lateral side that is disposed opposite the first lateral side, an upper side that extends from the first lateral side toward the second lateral side, and a back side that extends between the first lateral side and the second lateral side;
- and
- a first backplate having a first lateral backplate side, a second lateral backplate side disposed opposite the first lateral bookplate side, a first backplate face that engages the back side of the friction material and extends from the first lateral backplate side to the second lateral backplate side, and a first hole that extends from the first backplate face and is positioned along a lateral axis between the first lateral side and the first lateral backplate side and is positioned along a longitudinal axis below the upper side of the friction material, wherein the longitudinal axis is disposed perpendicular to the lateral axis;
- and
- a retraction spring that is partially received in the first hole.
The brake assembly of claim I wherein the first hole is disposed closer to the first lateral side of the friction material than to the first lateral backplate side.
The brake assembly of claim t wherein the retraction spring has a coil, a first upper biasing arm that extends from the coil, a first lower biasing, arm that extends at a first angle from an end of the first upper biasing arm, and a tip that extends at a second angle from an end of the first lower biasing arm, wherein the tip is received in the first hole.
A brake assembly comprising:
- a first brake pad assembly that includes:
- a friction material having a first lateral side, a second lateral side that is disposed opposite the first lateral side, an upper side that extends from the first lateral side toward the second lateral side, a lower side that is disposed opposite the upper side and extends from the first lateral side toward the second lateral side, and a back side that extends between the first lateral side and the second lateral side;
- and
- a first backplate having a first lateral backplate side, a second lateral backplate side disposed opposite the first lateral backplate side, a first backplate face that engages the back side of the friction material and extends from the first lateral backplate side to the second lateral backplate side, and a first hole that extends from the first backplate face and is positioned laterally outboard with respect to the first lateral backplate side and is positioned laterally inboard with respect to the first lateral side;
- and
- a retraction spring may be partially received in the first hole.
A method of assembling a brake, assembly, the method comprising:
- providing a first brake pad assembly and a second brake pad assembly that each include;
- a friction material having a first lateral side, a second lateral side, that is disposed, opposite the first lateral side, an upper side that extends from the first lateral side toward the second lateral side, a lower side that is disposed opposite the upper side and extends from the first lateral side toward the second lateral side, and a back side that extends between the first lateral side and the second lateral side;
- and
- a backplate having a first lateral backplate side, a second lateral backplate side disposed opposite the first lateral backplate side, a first backplate face that engages the back side of the friction material and extends from the first lateral backplate side to the second lateral backplate side, and a hole that extends from the first backplate face;
- providing a retraction spring that includes:
- a coil that extends around a central axis and intersects a plane that extends orthogonal to the central axis:,
- first and second biasing arms that extend from the coil;
- a first tip that extends along a first central axis from an end of the first biasing arm;
- and
- a second tip that extends along a second central axis from an end of the second biasing arm, wherein the first central axis extends at a first oblique angle relative to the plane, and the second central axis extends at a second oblique angle relative to the plane;
- and
- positioning the first tip in the hole in the backplate of the first brake pad assembly and positioning the second tip in the hole of the second brake pad assembly.
Dependencies are inferred from the claim text.