Inboard brake

Abstract: A brake system is provided for a straddle-type ATV (10). The brake system (30) includes a brake caliper (54) configured to mount to a gear box (40) of the ATV and a brake disk (52) configured to connect to a coupling member of the gear box coupled to a shaft and positioned in operative relation relative to the caliper. The brake system additionally includes a brake-actuating control mechanism (36c) in communication with the brake caliper. The brake-actuating control mechanism controls the brake caliper to provide selective frictional engagement between the brake caliper and the brake disk.

Abstract: A vehicular disc brake in which the backing plate of the inboard brake pad assembly includes holes which capture guide rails carried by spaced arm portions of the torque plate and the backing plate of the outboard brake pad assembly is pinned to the outboard web of the caliper. The various clearances are selected such that, upon application of the brake, the inboard backing plate pulls on one of the guide rails to transmit the braking torque exerted on the inboard pad assembly to one arm of the torque plate and the caliper pushes against the other guide rail to transmit the braking torque exerted on the outboard pad assembly to the other arm of the torque plate.

Abstract: A brake rotor adapted for use in a vehicle disc brake assembly includes an inner mounting flange portion and an outer annular disc portion connected thereto by a circumferential hat portion. The outer annular disc portion defines an outboard brake surface and an inboard brake surface. The outboard brake surface has an inner peripheral surface and the inboard brake surface has an inner peripheral surface. The inner peripheral surface of the outboard brake surface is connected to the hat portion by a plurality of first ribs and the inner peripheral surface of the inboard brake surface is connected to the hat portion by a plurality of second ribs.

Abstract: A disc brake (1) comprises a cylinder (5) slidably mounted on a carrier member (2) for movement parallel to the axis of rotation of the disc. The cylinder (5) is closed at the end adjacent the disc. A bridge member (10) of integral structure, for example forged steel, connects the piston (7) to the outboard brake pad (15). In use, when hydraulic fluid is supplied to the cylinder (5) the cylinder slides on the carrier to apply the inboard brake pad (14) to the disc, and the piston applies a force to the outboard pad (15) via the bridge member (10). The seals (8,9) between the piston (7) and cylinder (5) are isolated from the heat produced by the brake pads, and the bridge member (10) does not require accurate machining and can be designed to provide the maximum strength.