Connector assembly having control lever actuation

• US 5,368,496 A
• Filed: 12/10/1993
• Issued: 11/29/1994
• Est. Priority Date: 12/10/1993
• Status: Expired due to Fees

• Current Assignee: Tetrad Corporation
• Original Assignee: Tetrad Corporation
• Inventors: de Angeli, Michael, Ranalletta, Joseph V.
• Primary Examiner(s): NGUYEN, KHIEM M
• Application Number:
  US08/164,578
• Time in Patent Office: 354 Days
• Field of Search: 439/259, 439/261, 439/262, 439/310, 439/352, 439/362, 439/364, 439/372
• US Class Current: 439/261
• CPC Class Codes: A61N 7/00 Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092
• CPC Class Codes: H01R 13/193 Means for increasing contact pressure at the end of engagement of coupling part , e.g. zero insertion force or no friction
• CPC Class Codes: H01R 13/62944 Pivoting lever comprising gear teeth
• CPC Class Codes: H01R 13/641 by indicating incorrect coupling; by indicating correct or full engagement

Abstract

A connector mechanism for locking together first and second mating connector elements comprises a locking lever geared to rotate a locking rod returned by one of the connector elements. The tip of the locking rod extends into a mating recess in the other of the connector elements. When the rod is rotated, a helical member extending therearound slides along a cooperating arcuate member formed in the recess, locking the two elements together. The actuating rod is rotated by a control lever, enabling one-hand operation of the connector, and providing a readily ascertainable visual indication of the status of the connection. A locking member may be provided for preventing rotation of the lever except when the elements have been correctly assembled to one another.

Claims

1. In a mechanism for locking together first and second mating multi-pin connector elements, wherein a first of said elements comprises a member defining a generally tubular recess for receiving a distal tip of a control rod retained in a bore formed in the second of said elements and rotatable therein, and wherein said member and said rod cooperate such that said tip of said rod may be inserted into said recess and rotated through a predetermined angle in order to secure said tip of said rod within said recess, locking said first and second elements to one another, the improvement comprising:

a control lever mounted to said second element for pivoting about a pivot axis not coincident with the axis of rotation of said rod in said bore, and means operably connected to said control lever and said rod, such that upon pivoting of said lever said rod is rotated through a predetermined angle, whereby said rod may be secured within said recess, locking said first and second elements to one another.

2. The improvement of claim 1, wherein said mating elements meet along a generally planar mating plane, and said tip of said rod enters said recess along an axis substantially perpendicular to said mating plane.

3. The improvement of claim 1, wherein said control lever is pivoted about a pivot axis substantially perpendicular to said bore within which said rod is retained.

4. The improvement of claim 1, wherein said means operably connected to said control lever and said rod comprise intermeshing gearing elements including at least one gearing element fixed with respect to said lever, and a second gearing element fixed with respect to said rod.

5. The improvement of claim 4, wherein said control lever is pivoted about a pivot axis substantially perpendicular to said bore within which said rod is retained, and said gearing elements comprise meshing bevel gears, a first of said bevel gears being mounted on the pivot axis of said lever and fixed with respect to said lever, and a second of said bevel gears being fixed with respect to said rod.

6. The improvement of claim 1, wherein said first and second mating elements meet at a substantially rectangular mating plane having two longer sides and two shorter sides, and wherein said pivot axis about which said control lever pivots is parallel to said mating plane and transverse to the longer sides thereof.

7. The improvement of claim 1, wherein said tip of said rod comprises a member extending transversely with respect to the axis of rotation of said rod, and wherein a cooperating helical surface is defined within said recess, such that after said tip of said rod is inserted into said recess and rotated, said rod is drawn into said recess, locking said first and second elements to one another.

8. The improvement of claim 7, wherein said member extending transversely from said distal tip of said rod comprises means defining a helical surface extending generally transversely outwardly with respect to the axis of rotation of said rod.

9. The improvement of claim 1, further comprising means for preventing rotation of said control rod except after mating of said first and second elements to one another.

10. The improvement of claim 9, wherein said means for preventing rotation of said control rod except after mating of said first and second elements to one another comprises release means comprised by the first of said elements for releasing a locking means comprised by the second of said elements when the second of said elements is assembled to the first of said elements.

11. The improvement of claim 10, wherein said locking means comprised by the second of said elements comprises a locking member biased to prevent rotation of said control rod except when the second of said elements is assembled to the first of said elements.

12. A connector assembly for simultaneous connection of a plurality of electrical conductors, said assembly comprising first and second mating connector elements, said elements mating such that a plurality of first electrical contacts comprised by said first element meet a like plurality of second electrical contacts comprised by said second element substantially in a mating plane, and further comprising:

a recess defined by the first of said mating elements;

a bore formed in the second of said mating elements;

a rotatable control rod retained in said bore formed in the second of said mating elements;

mutually cooperating locking members comprised by said first of said mating elements and said rod, such that a distal end of said rod protruding from said second element may be inserted into said recess and rotated through a predetermined angle to lock said rod within said recess, and to secure said mating elements to one another;

a control lever mounted to the second of said elements by pivot means defining a pivot axis about which said control lever pivots, said pivot axis differing from the axis about which said rod rotates in said bore; and

means operated by pivoting of said lever for rotating said rod, and thus controlling locking of said rod within said recess, and securing of said first and second elements to one another.

13. The connector assembly of claim 12, wherein said second element of said connector assembly comprises cam means operated upon rotation of said rod to move the second electrical contacts so as to engage the first electrical contacts upon rotation of said rod responsive to pivoting of said lever.

14. The connector assembly of claim 13, wherein said second electrical contacts move in said mating plane upon rotation of said rod responsive to pivoting of said lever.

15. The connector assembly of claim 12, wherein said tip of said rod enters said recess in a direction substantially perpendicular to said mating plane.

16. The connector assembly of claim 12, wherein said pivot axis about which said control lever is pivoted is substantially perpendicular to said axis about which said rod rotates in said bore.

17. The connector assembly of claim 12, wherein said means operably connected to said control lever and said rod comprises intermeshing gearing elements including at least one gearing element fixed with respect to said lever, and a second gearing element fixed with respect to said rod.

18. The connector assembly of claim 17, wherein said pivot axis about which said control lever is pivoted is substantially perpendicular to said axis about which said rod rotates in said bore, and said gearing elements comprise meshing bevel gears, a first of said bevel gears being mounted on the pivot axis of said lever and fixed with respect to said lever, and a second of said bevel gears being fixed with respect to said rod.

19. The connector assembly of claim 12, wherein said first and second mating elements meet at a substantially rectangular mating plane having two longer sides and two shorter sides, and wherein said pivot axis about which said control lever pivots is parallel to said mating plane and transverse to the longer sides thereof.

20. The connector assembly of claim 12, wherein said mutually cooperating locking members cooperating such that said tip of said rod may be inserted into said recess and rotated through a predetermined angle in order to secure said tip of said rod within said recess, locking said first and second elements to one another, comprise a member extending transversely from one of said distal tip of said rod and an inner confronting surface of said recess, and a cooperating helical surface formed on the other of said distal tip of said rod and said inner confronting surface of said recess, such that after said tip of said rod is inserted into said recess and rotated, said rod is drawn into said recess, locking said first and second elements to one another.

21. The improvement of claim 20, wherein said member extending transversely from one of said distal tip of said rod and an inner confronting surface of said recess comprises means for defining a helical surface extending generally transversely outwardly from said tip of said rod.

22. The improvement of claim 12, further comprising means for preventing rotation of said control rod except after mating of said first and second connector elements to one another.

23. The improvement of claim 22, wherein said means for preventing rotation of said control rod except after mating of said first and second elements to one another comprises release means comprised by the first of said elements for releasing a locking means comprised by the second of said elements when the second of said elements is assembled to the first of said elements.

24. In a mechanism for securing together first and second mating multi-pin connector elements, wherein a first of said elements comprises a member defining a generally tubular recess for receiving a distal tip of a control rod retained in a bore formed in the second of said elements and rotatable therein, and wherein said member and said rod cooperate such that said tip of said rod may be inserted into said recess and rotated through a predetermined angle in order to secure said tip of said rod within said recess, securing said first and second elements to one another, and further comprising a control lever mounted to said second element for pivoting about a pivot axis and operably connected to said rod, such that upon pivoting of said lever said rod is rotated through a predetermined angle, whereby said rod may be secured within said recess, locking said first and second elements to one another, the improvement comprising:

means for preventing rotation of said rod and pivoting of said control lever except when said tip of said rod has been inserted into said recess.

25. The improvement of claim 24, wherein said means for preventing rotation of said control rod except after mating of said first and second elements to one another comprises a release means comprised by the first of said elements for releasing a locking means comprised by the second of said elements when the second of said elements is assembled to the first of said elements.

26. The improvement of claim 25, wherein said locking means comprised by the second of said elements comprises a locking rod biased to prevent rotation of said control rod except when the second of said elements is assembled to the first of said elements.

27. The improvement of claim 25, wherein said locking rod is coaxial with and axially movable within said control rod, and wherein said release means comprises a pin disposed within said recess for urging said locking rod axially within said control rod against said bias when said tip of said control rod is inserted into said recess.