Piston-side brake shim
OwnerRay Arbesman, Nghi Phaminventors
Life of this patent
Estimating the term…
Abstract
The present invention is a shim or shim assembly that clips onto a brake caliper piston. It is generally a rimmed round (disc or annular) shape to cap the edges of the caliper piston and includes surface features for lubrication, and improved fitting. Reduced noise from frictional fretting is provided along with protection of piston's outer rim. Reduced thermal transfer into the piston is also provided.
Claims27
A piston-side shim for use on a brake piston having a hollow open end, the shim comprising:
- a round plate for substantially covering at least the contact edges of the hollow open end of the brake piston, the plate having a brake plate facing surface and a piston facing surface, an outside edge of the plate being bent or curved toward the piston facing surface;
- and
- a plurality of piston engaging clips cut from the plate and bent or curved at an angle to the plate for engaging an interior portion of the hollow open end of the brake piston to retain the round plate on the brake piston.
A piston-side shim for use on a brake piston having a hollow open end, the shim comprising:
- an annular plate for covering at least the contact edges of the hollow open end of the brake piston, the plate having a brake plate facing surface and a piston facing surface, an outside edge of the plate being bent or curved toward the piston facing surface;
- and
- a plurality of piston engaging clips cut from the plate and bent or curved at an angle to the plate for engaging a hollow inside portion of the brake piston to retain the plate on the brake piston.
A piston-side shim for use on a brake piston having a hollow open end, the shim comprising:
- an annular plate for covering at least the contact edges of the hollow open end of the brake piston, the plate having a brake plate facing surface and a piston facing surface, the plate defining a plurality of perforations;
- and
- a plurality of piston engaging clips cut from the plate and bent or curved at an angle to the plate for engaging a hollow inside portion of the brake piston to retain the plate on the brake piston.
Dependencies are inferred from the claim text.