| 摘要 |
A brake caliper (3) includes a housing (7) disposed over a brake rotor (5); first and second opposing brake pads extendably (12a,b) and retractably mounted on opposite sides of the caliper housing, brake pistons (9a-d) that extend and retract the brake pads into and out of frictional engagement with the rotor, and brake pad timing and retraction controllers (20a-d) disposed on opposite sides of the caliper housing. Each controller includes a resilient member (38) with a short compression travel limited to between about 1.50 mm and 0.025 mm (eg a Belleville spring). The spring of each controller applies a hold-off force against the extension force of the brake pistons that slightly delays brake pad extension and slightly reduces brake pad clamping force against the rotor, thereby advantageously providing a front wheel braking bias when applied to the rear wheels of a vehicle. The restorative force applied by the short stroke Belleville forcefully and uniformly retracts the brake pad from the rotor, eliminating parasitic brake losses, and dampening out-of-plane vibration between the brake pad and rotor. |
