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US 12,760,776 B2Granted
Braking device wear indicator and method
AssigneeTransportation IP Holdings, LLC
InventorA Gary Bowden
Life of this patent
Estimating the term…
Abstract
A brake shoe includes a backing plate, a composition friction material forming a brake pad. The brake pad has first and second opposite ends and first and second opposite lateral sides. A wear indicator is formed in at least one of the ends. The wear indicator extends outwards from at least one of the first end surface, the second end surface, the first lateral side surface, and the second lateral side surface at a set vertical position with respect to the back surface.
Claims7
A brake shoe, comprising:
- a backing plate adapted to interface with a brake head on a vehicle;
- a brake pad formed from a composition friction material, the brake pad having a back surface disposed onto the backing plate and a brake surface of the brake pad, the brake pad having opposite first and second ends and opposite first and second lateral sides;
- and
- at least one wear indicator formed from the composition friction material, the at least one wear indicator formed in at least one of the first end or the second end of the brake pad proximate to an intersection of the back surface and the surface of at least one of the first end, the second end, the first lateral side, or the second lateral side of the brake pad, the at least one wear indicator projecting from at least one of the first end, the second end, the first lateral side, or the second lateral side at a set vertical position with respect to the back surface of the brake pad,
- wherein the surface of at least one of the first end or the second end forms a chamfered surface with an extending surface of the at least one wear indicator that outwardly projects from the at least one of the first end or the second end, the chamfered surface and the extending surface of the at least one wear indicator defining an obtuse angle.
2 more elements
A brake shoe, comprising:
- a backing plate adapted to interface with a brake head on a vehicle that has at least one wheel;
- a brake pad formed from a composition friction material and having a back surface disposed onto the backing plate and a brake surface of the brake pad for engaging the wheel of the vehicle, the brake pad having opposite first and second ends and opposite first and second lateral sides, each of the ends and each of the sides having a respective surface;
- at least one wear indicator formed from the composition friction material in at least one of the first end or the second end of the brake pad proximate to an intersection of the back surface and the surface of at least one of the first end, the second end, the first lateral side, or the second lateral side of the brake pad, the at least one wear indicator projecting from the surface of at least one of the first end, the second end, the first lateral side, or the second lateral side of the brake pad at a set vertical position with respect to the back surface;
- and
- a conditioning insert that is monolithic with or that is coupled to the at least one wear indicator,
- wherein the at least one wear indicator is threaded and is threadedly coupled to the conditioning insert.
3 more elements
Dependencies are inferred from the claim text.