TORQUE TRANSFERRING ASSEMBLY FOR A BRAKE ASSEMBLY

• US 20180135711A1
• Filed: 11/06/2017
• Published: 05/17/2018
• Est. Priority Date: 11/11/2016
• Status: Active Grant

• Current Assignee: Akebono Brake Industry Company Limited (Akebono Brake Corporation)
• Original Assignee: Akebono Brake Industry Company Limited (Akebono Brake Corporation)
• Inventors: Chelaidite, Galus, Suzuki, Michio
• Granted Patent: US 10,443,666 B2
• Time in Patent Office: Days
• CPC Class Codes: F16D 2121/04 acting on a piston-type actuator, e.g. for liquid pressure
• CPC Class Codes: F16D 2121/24 using motors
• CPC Class Codes: F16D 2125/36 Helical cams, Ball-rotating ramps
• CPC Class Codes: F16D 65/18 adapted for drawing members together , e.g. for disc brakes

Abstract

A torque transferring assembly that includes: a first output; a second output; and a spider located in between the first output and the second output. The spider is adapted to support a plurality of torque transferring elements such that each of the torque transferring elements are in communication with both of the first output and the second output. The torque transferring assembly is adapted to supply a torque to both the first output and the second output so that both outputs rotate together until a load or resistance acting on the first output becomes higher than a load or resistance acting on the second output. The torque transferring assembly is then adapted to transfer the torque to the second output so that the first output slows or ceases to rotate, while the second output continues to rotate.

Claims

1. ) A torque transferring assembly comprising:

a first output;

a second output; and

a spider located in between the first output and the second output, the spider is adapted to support a plurality of torque transferring elements such that each of the torque transferring elements are in communication with both of the first output and the second output;

wherein the torque transferring assembly is adapted to supply a torque to both the first output and the second output so that both outputs rotate together until a load or resistance acting on the first output becomes higher than a load or resistance acting on the second output, the torque transferring assembly is then adapted to transfer the torque to the second output so that the first output slows or ceases to rotate, while the second output continues to rotate.

2. ) The torque transferring assembly according to claim 1, wherein the torque transferring assembly is adapted to supply an opposite rotational direction torque to both the first output and the second output so that both outputs rotate together regardless of the load or resistance acting on the first output and/or the second output.

3. ) The torque transferring assembly according to claim 1, wherein the torque transferring assembly comprises an axle;

wherein the axle is adapted to support the first output, the second output, and the spider; and

wherein the first output is adapted to rotate independently of the axle, and the second output is adapted to rotate independently of the axle.

4. ) The torque transferring assembly according to claim 3, wherein the spider is rotationally fixed to the axle.

5. ) The torque transferring assembly according to claim 4, wherein the torque causes the axle to rotate about a longitudinal axis of the axle, which causes the spider and the torque transferring elements that are supported by the spider to rotate about the axis, the torque is supplied to the first output and the second output by way of the torque transferring elements rotating with the spider about the axis and being in contact with both of the first output and the second output.

6. ) The torque transferring assembly according to claim 5, wherein when the load or resistance acting on the first output becomes higher than the load or resistance acting on the second output, one or more of the torque transferring elements are adapted to spin about each of their respective axes, which causes the torque to transfer to the second output so that the second output continues to rotate while the first output slows or ceases to rotate.

7. ) The torque transferring assembly according to claim 6, wherein the torque is supplied to the torque transferring assembly by a motor;

and

wherein the axle comprises a bore, the bore is adapted to receive an output shaft of the motor so that rotation of the output shaft causes the axle to rotate.

8. ) The torque transferring assembly according to claim 6, wherein the torque is supplied to the torque transferring assembly by a motor;

and

wherein the axle is an output shaft of the motor.

9. ) The torque transferring assembly according to claim 5, wherein the torque transferring assembly comprises a spring, the spring is adapted to apply an axial preload on the torque transferring elements so that the torque transferring elements are maintained in contact with both the first output and the second output.

10. ) The torque transferring assembly according to claim 6, wherein the spider comprises a plurality of slots, each of the slots are adapted to support one of the torque transferring elements, the torque transferring elements are free to spin about their respective axis within each of the slots;

and

wherein one or more of the slots comprises a friction reducing element, the friction reducing element is adapted to contact only a single portion of a corresponding torque transferring element.

11. ) The torque transferring assembly according to claim 6, wherein the spider comprises a plurality of slots, each of the slots are adapted to support one of the torque transferring elements, the torque transferring elements are free to spin about their respective axis within each of the slots;

and

wherein one or more of the slots comprises a friction reducing element, the friction reducing element is adapted to contact only a single portion of a corresponding torque transferring element when the torque transferring assembly supplies the torque to both the first output and the second output; and

wherein the friction reducing elements are free from contacting the corresponding torque transferring elements when the torque transferring assembly supplies the opposite rotational direction torque to the first output and the second output.

12. ) The torque transferring assembly according to claim 10, wherein each of the slots are configured to contact the corresponding torque transferring element at two contact points.

13. ) The torque transferring assembly according to claim 10, wherein each of the slots are configured to contact the corresponding torque transferring element at three contact points.

14. ) The torque transferring assembly according to claim 11, wherein each of the slots are configured to contact the corresponding torque transferring element at two contact points.

15. ) A brake system comprising the torque transferring assembly according to claim 6, the brake system comprising a first brake piston, a second brake piston, and a brake pad;

wherein rotation of the first output causes the first brake piston to move, and rotation of the second output causes the second brake piston to move; and

wherein movement of the first and/or the second brake piston causes the brake pad to be moved towards or away from a brake rotor to create or release a clamping force.

16. ) A brake system comprising:

a first brake piston;

a second brake piston;

a brake pad;

a torque transferring assembly comprising;

a first output, a second output, and a spider; and

a motor;

wherein the spider is located in between the first output and the second output, the spider is adapted to support a plurality of torque transferring elements such that each of the torque transferring elements are in contact with both of the first output and the second output;

wherein the first brake piston is in communication with the first output, and the second brake piston is in communication with the second output;

wherein the torque transferring assembly is adapted to supply a first rotational direction torque supplied by the motor to both the first output and the second output so that both brake pistons move together until a load or resistance acting on the first brake piston becomes higher than a load or resistance acting on the second brake piston, the power transferring assembly is then adapted to transfer the first rotational direction torque to the second output so that the first output slows or ceases to rotate, while the second output continues to rotate so that the first brake piston slows or ceases to move, while the second brake piston continues to move; and

wherein the torque transferring assembly is adapted to supply a second rotational direction torque supplied by the motor to both the first output and the second output so that both outputs rotate together regardless of the load or resistance acting on the first brake piston or the second brake piston so that both the first brake piston and the second brake piston move.

17. ) The brake system according to claim 16, wherein a rotary to linear stage mechanism is located between each of the outputs and the brake pistons.

18. ) The torque transferring assembly according to claim 17, wherein each of the slots are configured to contact the corresponding torque transferring element at two contact points.

19. ) The brake system according to claim 18, wherein the spider comprises slots that are each adapted to support one of the torque transferring elements;

wherein one or more of the slots comprises a friction reducing element, the friction reducing element is adapted to contact only a single portion of a corresponding torque transferring element to reduce friction between the spider and the torque transferring elements when the torque transferring assembly supplies the first rotational direction torque to both the first output and the second output.

20. ) The brake system according to claim 19, wherein the friction reducing elements are free from contacting the corresponding torque transferring elements when the torque transferring assembly supplies the opposite rotational direction torque to both the first output and the second output.