Brake caliper guide pin low pressure isolation damper
AssigneeKelsey-Hayes Company
InventorsKraig E. Gerber, Antonio Eduardo De Morais
Life of this patent
Estimating the term…
Abstract
A disc brake assembly comprises an anchor bracket having at least one bore formed therein; a guide pin configured to be slidably supported in the bore and having a stem; at least one main damper configured to be disposed between the stem and an interior surface of the bore and configured to bias a portion of the stem against the interior surface of the bore depending upon brake loading on the disc brake assembly; and at least one secondary damper configured to be disposed between the stem and the interior surface, wherein the secondary damper is configured to limit a contact between the stem and the interior surface depending upon brake loading on the disc brake assembly.
Claims20
A disc brake assembly comprising:
- an anchor bracket having at least one bore formed therein;
- a guide pin configured to be slidably supported in the bore and having a stem;
- at least one main damper configured to be disposed between the stem and an interior surface of the bore and configured to bias a portion of the stem against the interior surface of the bore depending upon brake loading on the disc brake assembly;
- and
- at least one compressible secondary damper configured to be disposed between the stem and the interior surface, wherein the secondary damper is configured to limit a contact between the stem and the interior surface depending upon the brake loading on the disc brake assembly, wherein the secondary damper has a compression threshold;
- wherein when there is no brake loading, the secondary damper is configured to create a clearance between the stem and the interior surface such that the stem does not contact the interior surface, and wherein when the brake loading exceeds the compression threshold, the secondary damper is compressed such that the stem makes contact with the interior surface.
A disc brake assembly comprising:
- an anchor bracket having at least one bore formed therein;
- a guide pin configured to be slidably supported in the bore and having a stem;
- at least one compressible main damper configured to be disposed between the stem and an interior surface of the bore and configured to bias a portion of the stem against the interior surface of the bore depending upon brake loading on the disc brake assembly;
- and
- at least one compressible secondary e damper configured to be disposed between the stem and the interior surface;
- wherein a clearance exists between the stem and the interior surface of the bore when there is no brake loading on the disc brake assembly and as brake loading increases and exceeds a compression threshold of the secondary damper, the secondary damper is compressed until the clearance is closed and a portion of the stem contacts the interior surface.
A disc brake assembly comprising:
- an anchor bracket having at least one bore formed therein;
- a guide pin configured to be slidably supported in the bore and having a stem;
- at least one main damper configured to be disposed between the stem and an interior surface of the bore and configured to bias a portion of the stem against the interior surface of the bore depending upon brake loading on the disc brake assembly;
- and
- at least one compressible secondary damper configured to be disposed between the stem and the interior surface, wherein the secondary damper is configured to limit a contact between the stem and the interior surface depending upon the brake loading on the disc brake assembly;
- wherein the secondary damper has a contact threshold and, when a brake loading exceeds the contact threshold, the secondary damper allows contact between the stem and the interior surface;
- and
- wherein the secondary damper has a lower stiffness than the main damper.
Dependencies are inferred from the claim text.