Opposed piston type brake assembly

Inventor: Prakash Sunke (Novi, MI)

Assignee: HL MANDO CORPORATION

F16D65/18 F16D55/228 F16D2125/40 F16D2125/56

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Quick Facts

Patent No.: US 12692919
App. No.: 18/212,660
Granted: Jul 28, 2026
Kind: B2

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Abstract

A brake assembly comprises: an actuator configured to generate a torque; inboard-side and outboard-side piston mechanisms disposed to be opposed to each other to perform a brake operation; an inboard-side drive mechanism configured to transfer the torque generated by the actuator to the inboard-side piston mechanism and a shaft extending from an inboard side to an outboard side of the brake assembly; an outboard-side drive mechanism configured to transfer the torque delivered from the inboard side of the brake assembly through the shaft to the outboard-side piston mechanism; and the shaft extending from the inboard side to the outboard side of the brake assembly to transfer the torque of the inboard-side drive mechanism to the outboard-side drive mechanism, such that the torque generated from the actuator and transferred to the inboard-side drive mechanism is transferable to the outboard-side drive mechanism through the shaft to drive the outboard-side piston mechanism.

Claims (20)

1 . A brake assembly comprising:

an actuator configured to generate torque;

an inboard-side piston mechanism disposed on an inboard-side of a brake caliper and configured to perform an inboard-side brake operation in association with an inboard-side surface of a brake rotor;

an inboard-side drive mechanism operably connected with the actuator and configured to be driven by the torque generated by the actuator to transfer the torque generated by the actuator to the inboard-side piston mechanism and a shaft extending from an inboard side of the brake assembly to an outboard side of the brake assembly;

an outboard-side piston mechanism disposed on an outboard-side of the brake caliper and opposed to the inboard-side piston mechanism relative to the brake rotor, the outboard-side piston mechanism configured to perform an outboard-side brake operation in association with an outboard-side surface of the brake rotor;

an outboard-side drive mechanism configured to transfer the torque, generated by the actuator and transferred through the inboard-side drive mechanism and the shaft extending from the inboard side of the brake assembly to an outboard side of the brake assembly, to the outboard-side piston mechanism; and

the shaft extending from the inboard side of the brake assembly to the outboard side of the brake assembly to transfer the torque of the inboard-side drive mechanism to the outboard-side drive mechanism, such that the torque generated from the actuator and transferred to the inboard-side drive mechanism configured to drive the inboard-side piston mechanism is transferable to the outboard-side drive mechanism through the shaft to drive the outboard-side piston mechanism,

wherein the inboard-side drive mechanism comprises:

a first gear coupled to the inboard-side drive mechanism to transfer the torque generated by the actuator to the inboard-side drive mechanism; and

a second gear operably connected with the first gear and coupled to the shaft extending from the inboard side of the brake assembly to the outboard side of the brake assembly to transfer a torque received from the first gear to the shaft extending from the inboard side of the brake assembly to the outboard side of the brake assembly,

wherein the outboard-side drive mechanism comprises a belt connected between the shaft extending from the inboard side of the brake assembly to the outboard side of the brake assembly and the outboard-side drive mechanism to transfer a torque of the shaft extending from the inboard side of the brake assembly to the outboard side of the brake assembly to the outboard-side drive mechanism.

2 . The brake assembly according to claim 1 , wherein the brake rotor is disposed between the inboard-side of the brake assembly and the outboard-side of the brake assembly.

3 . The brake assembly according to claim 1 , wherein the inboard-side piston mechanism comprises:

an inboard-side rotatable structure operably coupled to the actuator and configured to be rotated by the actuator;

an inboard-side linearly movable structure operably coupled to the inboard-side rotatable structure and configured to be linearly moved by rotation of the inboard-side rotatable structure; and

an inboard-side piston configured to be linearly movable relative to the inboard-side surface of the brake rotor in response to linear movement of the inboard-side linearly movable structure.

4 . The brake assembly according to claim 1 , wherein the outboard-side piston mechanism comprises:

an outboard-side rotatable structure operably coupled to the outboard-side drive mechanism and configured to be rotated by the torque generated by the actuator and transferred through the inboard-side drive mechanism, the shaft extending from the inboard side of the brake assembly to an outboard side of the brake assembly, and the outboard-side drive mechanism;

an outboard-side linearly movable structure operably coupled to the outboard-side rotatable structure and configured to be linearly moved by rotation of the outboard-side rotatable structure; and

an outboard-side piston configured to be linearly movable relative to the outboard-side surface of the brake rotor in response to linear movement of the outboard-side linearly movable structure.