Brake assembly for fall arrest system

Patent metadata

Field	Value
Publication number	US-11534634-B2
Application number	US-202016840034-A
Country	US
Kind code	B2
Filing date	Apr 3, 2020
Priority date	Apr 3, 2020
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A brake plate of a fall arrest system is provided for protecting users during a fall. The brake plate comprises a body having a central opening. The central opening defines an inner circumference of the body. The brake plate comprises a plurality of ratchet gear teeth disposed along the inner circumference of the body. Further, the brake plate comprises at least two slots on the body, wherein the at least two slots are disposed diametrically opposite to each other. Each of the at least two slots is curved and extends along a portion of an outer circumference of the body.

First claim

What is claimed is:

1. A brake plate for a fall arrest system, the brake plate comprising:
a body having a central opening, wherein the central opening defines an inner circumference of the body;
at least two slots on the body, wherein the at least two slots are disposed diametrically opposite to each other, wherein each of the at least two slots is disposed between the inner circumference and an outer circumference of the body, wherein each of the at least two slots is curved and extends along a portion of the outer circumference; and
a plurality of ratchet gear teeth disposed along the inner circumference of the body.

2. The brake plate as claimed in claim 1 , wherein each of the plurality of ratchet gear teeth comprises a ramped surface, such that a lower portion of the ramped surface of a ratchet gear tooth abuts a higher portion of the ramped surface of a subsequent ratchet gear tooth.

3. The brake plate as claimed in claim 1 further comprising at least two pin openings positioned diametrically opposite to each other, wherein a pin opening is configured to receive a pin.

4. The brake plate as claimed in claim 1 , wherein the brake plate is coupled to a back plate of a brake assembly.

5. A brake assembly for a fall arrest system, comprising:
a brake plate having a central opening, wherein the central opening defines an inner circumference of the brake plate, the brake plate comprising:
at least one slot, wherein the at least one slot is disposed between the inner circumference and an outer circumference of the brake plate, wherein the at least one slot is curved and extends along a portion of the outer circumference of the brake plate; and
at least one deformable body, wherein the at least one deformable body is disposed within the at least one slot, wherein the at least one deformable body is curved and extends along a length of the at least one slot; and
a plurality of ratchet gear teeth disposed along the inner circumference of the brake plate.

6. The brake assembly as claimed in claim 5 , further comprising at least one screw, disposed at a first end of the at least one slot, such that in an instance when the brake plate rotates, a second end of the at least one slot moves towards the at least one screw.

7. The brake assembly as claimed in claim 6 , further comprising a back plate defining at least one screw hole to receive the at least one screw.

8. The brake assembly as claimed in claim 7 , wherein the back plate further comprises a pin hole to receive a pin for securing the brake plate to the back plate.

9. The brake assembly as claimed in claim 8 , wherein the pin is composed of aluminum.

10. The brake assembly as claimed in claim 5 , further comprising a pawl and spring assembly disposed within the central opening of the brake plate, wherein in an instance a user falls, a spring is released and a pawl engages with the plurality of ratchet gear teeth of the brake plate.

11. The brake assembly as claimed in claim 5 , wherein each of the plurality of ratchet gear teeth comprises a ramped surface, such that a lower portion of the ramped surface of a ratchet gear tooth abuts a higher portion of the ramped surface of a subsequent ratchet gear tooth.

12. The brake assembly as claimed in claim 5 , wherein the at least one deformable body is a plastic body.

13. A fall arrest system comprising:
a back plate;
at least one screw; and
a brake plate, wherein the at least one screw secures the brake plate to the back plate, wherein the brake plate rotates with reference to the back plate in an instance when a user falls, the brake plate defining a central opening, and wherein the central opening defines an inner circumference of the brake plate, the brake plate comprising:
at least one slot extending along a portion of an outer circumference of the brake plate, wherein the at least one screw is disposed within the at least one slot; and
a deformable body disposed within the at least one slot, wherein the at least one screw abuts an end of the deformable body, such that in an instance when the brake plate rotates, the at least one screw exerts a force on the deformable body in a direction opposite to a direction of rotation of the brake plate.

14. The fall arrest system as claimed in claim 13 wherein the deformable body is a single body of a plastic material.

15. The fall arrest system as claimed in claim 13 further comprising a plurality of ratchet gear teeth disposed along the inner circumference.

16. The fall arrest system as claimed in claim 15 wherein each of the plurality of ratchet gear teeth comprises a ramped surface, such that a lower portion of the ramped surface of a ratchet gear tooth abuts a higher portion of the ramped surface of a subsequent ratchet gear tooth.

17. The fall arrest system as claimed in claim 16 , wherein the back plate comprises at least one pawl and spring assembly, wherein in an instance a user falls, a spring is released and a pawl engages with the plurality of ratchet gear teeth of the brake plate.

18. The fall arrest system as claimed in claim 13 , wherein the at least one slot has a curved shape.

Assignees

• Honeywell Int Inc

Inventors

• Guzman Luis Adolfo
• Sierra Fatima
• Balquist Ross

Classifications

• F16F7/12

  using plastic deformation of members {(F16F9/30 takes precedence; yieldable means for mounting bumpers on vehicles B60R19/26; yieldable or collapsible steering columns B62D1/192)} · CPC title

• A62B35/04 Primary

  incorporating energy absorbing means · CPC title

• F16D63/006

  Positive locking brakes · CPC title

• F16F7/003

  One-shot shock absorbers (using plastic deformation of members, e.g. using sacrificial, fibre-reinforced composite members F16F7/12) · CPC title

• A62B1/10 Primary

  mechanically operated · CPC title