Clutch brake assembly

• US 6,450,310 B1
• Filed: 02/28/2001
• Issued: 09/17/2002
• Est. Priority Date: 10/25/2000
• Status: Expired due to Term

• Current Assignee: John Catrinta
• Original Assignee: John Catrinta
• Inventors: Catrinta, John
• Primary Examiner(s): Rodriguez, Saul
• Application Number:
  US09/795,557
• Publication Number:
  US 20020117362A1
• Time in Patent Office: 566 Days
• Field of Search: 192/13.R, 192/18.R, 192/DIG.1, 188/218.XL, 188/73.32
• US Class Current: 192/13.00R
• CPC Class Codes: F16D 11/06 with clutching members movable otherwise than only axially, e.g. rotatable keys
• CPC Class Codes: F16D 67/02 Clutch-brake combinations

Abstract

A clutch brake for a heavy duty automotive clutch. The clutch brake consists of two semiannular halves each having first and second ends. Each half has one tab disposed inwardly which is adapted to connect with the keyways in the input shaft of the transmission. The two halves are pivotally connected at one end prior to installation. The second ends of the two halves are shaped such that they interlock, forming an annular assembly about the shaft.

Claims

1. A clutch brake adapted to be connected to a rotating shaft having a pair of radially-opposed keyways, the clutch brake comprising:

a first arcuate member with a first end and a second end;

a second arcuate member with a first end and a second end;

a pivot connector coupling the first end of the first arcuate member to the first end of the second arcuate member so that the arcuate members pivot with respect to each other in a substantially flat coplanar relationship;

the first and second arcuate members each including a projecting tab for engagement with one of the keyways of the shaft; and

the second ends of each arcuate member including complementarily-shaped mating projections for releasably joining the second ends of the arcuate members to each other to removably secure the clutch brake to the shaft.

2. The clutch brake of claim 1 wherein, when the second ends of the arcuate members are joined together, the two arcuate members are forced out of their coplanar relationship upon initial engagement of the complementarily-shaped mating projections and return to their coplanar relationship when the mating projections are properly seated.

3. The clutch brake of claim 2 wherein an audible noise is created upon the mating projections being properly seated.

4. The clutch brake of claim 1 wherein each of the complementarily-shaped mating projections is inclined away from the second end of its respective arcuate member to form a tab, each arcuate member including a relieved area spaced from the second end for seating the tab of the other arcuate member.

5. The clutch brake of claim 2 wherein the pivot connector is adapted to permit a minor amount of non-coplanar pivotal movement between the first and second arcuate members to accommodate the engagement of the complementarily-shaped mating projections.

6. The clutch brake of claim 5 wherein the first end of one of the arcuate members includes a countersunk portion and the pivot connection comprises a rivet with a shaft and a head, the head being adapted to be received in the countersunk portion, and a flexible washer being secured to the shaft of the rivet underneath the head of the countersunk portion.

7. The clutch brake of claim 1 wherein the arcuate members have generally flat, opposed faces, the opposed faces having a friction-enhancing surface.

8. The clutch brake of claim 1 wherein the second ends of the arcuate members include an aperture adapted to removably receive a rod, a pair of rods when located in the holes providing levers that may be gripped to facilitate the seating of the complementarily-shaped mating projections.

9. A clutch brake adapted to be connected to a rotating shaft having a pair of radially-opposed keyways, the clutch brake comprising:

a first arcuate member with first and second ends;

a second arcuate member with first and second ends;

a pivot connector coupling the first end of the first arcuate member to the first end of the second arcuate member so that the arcuate members pivot with respect to each other and a substantially flat, coplanar relationship, the pivot connection comprising a rivet with a shaft and a head, the head being adapted to be received in a countersunk portion on the first end of one of the arcuate members, and a flexible washer being secured of the shaft of the rivet underneath the head within the countersunk portion;

the first and second arcuate members each including a projecting tab for engagement with one of the keyways of the shaft; and

the second ends of each arcuate member having complementarily-shaped mating sections for releasably joining the second ends of the arcuate members to each other to removably secure the clutch brake to the shaft.

10. The clutch brake of claim 9 wherein, when the second ends of the arcuate members are joined together, the two arcuate members are forced out of their coplanar relationship upon initial engagement of the complementarily-shaped mating projections and returned to their coplanar relationship when the mating projections are properly seated.

11. The clutch brake of claim 10 wherein an audible noise is created upon the mating projections being properly seated.

12. The clutch brake of claim 9 wherein each of the complementarily-shaped mating projections is inclined away from the second ends of its respective arcuate member to form a tab, and each arcuate member includes a relieved area spaced from the second end for seating the tab of the other arcuate member.

13. The clutch brake of claim 9 wherein the arcuate members have generally flat, opposed faces, the opposed faces having an opposed friction enhancing surface.

14. The clutch brake of claim 9 wherein the second ends of the arcuate members include an aperture adapted to removably receive a rod, a pair of rods when located in the holes providing levers that may be gripped to facilitate the seating of the complementarily-shaped mating projections.

15. A clutch brake adapted to be connected to a rotating shaft having a pair of radially-opposed keyways, the clutch brake comprising:

a first arcuate member with a first end and a second end;

a second arcuate member with a first end and a second end;

a pivot connector coupling the first end of the first arcuate member to the first end of the second arcuate member so that the arcuate members pivot with respect to each other in a substantially flat coplanar relationship, the pivot connector being adapted to permit a minor amount of non-coplanar pivotal movement between the first and second arcuate members;

the first and second arcuate members each including a projecting tab for engagement with one of the keyways of the shaft; and

the second ends of each arcuate member including complementarily-shaped mating projections for releasably joining the second ends of the arcuate members to each other to removably secure the clutch brake to the shaft.

16. The clutch brake of claim 15 wherein, when the second ends of the arcuate members are joined together, the two arcuate members are forced out of their coplanar relationship upon initial engagement of the complementarily-shaped mating projections and return to their coplanar relationship when the mating projections are properly seated.

17. The clutch brake of claim 16 wherein an audible noise is created upon the mating projections being properly seated.

18. The clutch brake of claim 15 wherein each of the complementarily-shaped mating projections is inclined away from the second end of its respective arcuate member to form a tab, each arcuate member including a relieved area spaced from the second end for seating the tab of the other arcuate member.

19. The clutch brake of claim 15 wherein the first end of one of the arcuate members includes a countersunk portion and the pivot connection comprises a rivet with a shaft and a head, the head being adapted to be received in the countersunk portion, and a flexible washer being secured to the shaft of the rivet underneath the head of the countersunk portion.

20. The clutch brake of claim 15 wherein the second ends of the arcuate members include an aperture adapted to removably receive a rod, a pair of rods when located in the holes providing levers that may be gripped to facilitate the seating of the complementarily-shaped mating projections.