Brake pad backing plate
AssigneeFederal-Mogul Motorparts LLC
InventorsChristopher L. Boyce, Gregory M. Vyletel
Life of this patent
Estimating the term…
Abstract
A backing plate for a brake pad that helps improve attachment of the friction pad. The backing plate has a multi-layered structure including a locking plate and a reinforcement plate. Locking holes or locking rings in the locking plate create an undercut portion at mold holes in the reinforcement plate to help mechanically lock the friction material of the brake pad. In some embodiments, retention holes and/or locking rails can be provided to help further retain the friction pad by increasing the available surface area for bonding. Additionally, the retention holes and/or locking rails can help decrease the weight of the backing plate by minimizing the overall size of the locking plate.
Claims19
A backing plate for a brake pad, comprising:
- a reinforcement plate plate having an outer perimeter, an outboard surface, an inboard surface, and a mold hole;
- and
- a locking plate having an outer perimeter, an outboard surface, an inboard surface, a locking hole and a retention hole, wherein the outboard surface of the locking plate is attached to the inboard surface of the reinforcement plate such that the mold hole and the locking hole are at least partially aligned and form an undercut configured to mechanically lock friction material at an undercut portion on the outboard side of the locking plate, wherein the outer perimeter of the reinforcement plate is at least partially aligned with the outer perimeter of the locking plate.
A backing plate for a brake pad, comprising:
- a reinforcement plate having an outer perimeter, an outboard surface, an inboard surface, and a mold hole;
- and
- a locking plate having an outer perimeter, an outboard surface, an inboard surface, a locking hole and a plurality of locking rails extending from the locking hole to the outer perimeter, wherein each locking rail of the plurality of locking rails projects from an outer diameter ring surface of the locking hole of the outer perimeter of the locking plate, wherein the outer perimeter of the reinforcement plate is at least partially aligned with the outer perimeter of the locking plate.
A backing plate for a brake pad, comprising:
- a reinforcement plate being made of steel, the reinforcement plate having an outboard surface, an inboard surface, and a mold hole;
- and
- a locking plate being made of aluminum or an aluminum alloy, the locking plate having an outboard surface, an inboard surface, a locking hole and a retention hole, wherein the outboard surface of the locking plate is attached to the inboard surface of the reinforcement plate such that the mold hole and the locking hole are at least partially aligned and form an undercut configured to mechanically lock friction material at an undercut portion on the outboard side of the locking plate.
Dependencies are inferred from the claim text.