Release tool for quick connector with integral release member

• US 5,537,727 A
• Filed: 09/28/1994
• Issued: 07/23/1996
• Est. Priority Date: 09/28/1994
• Status: Expired due to Fees

• Current Assignee: ITT Industries Inc (ITT, Inc.)
• Original Assignee: ITT Corporation (ITT, Inc.)
• Inventors: Mayer, Michael J.
• Primary Examiner(s): Watson, Robert C.
• Application Number:
  US08/314,356
• Time in Patent Office: 664 Days
• Field of Search: 29/237, 29/268, 29/239, 81/423, 81/341, 81/487, 81/418, 81/419, 81/424.5
• US Class Current: 29/237
• CPC Class Codes: B25B 27/10 inserting fittings into hoses
• CPC Class Codes: F16L 37/0987 the flexible hook being progressively compressed by axial tensile loads acting on the coupling
• CPC Class Codes: Y10T 29/5367 Coupling to conduit
• CPC Class Codes: Y10T 29/539 Plier type means

Abstract

A tool for releasing a connector from a fitting coupled together by a retainer element through movement of an integral release member mounted in the connector. The tool includes a pair of pivotally connected jaw levers, each with a bifurcated jaw end. The bifurcated jaws engage the connector and simultaneously slidably urge the release member into the connector to disengage the retainer element from the fitting to enable the decoupling and separation of the fitting and the connector. The jaws are of thin planer construction for insertion between the outer end of the release member and surrounding structure where access space is limited.

Claims

1. A tool, fitting and connector combination, the combination comprising:

a fitting having a raised annular flange ..Spaced from one end;

a connector having a housing with an open first end and a second end, the housing mountable over the fitting;

a retainer carried in the connector, the retainer having deflectable legs engageable with the annular flange to couple the fitting and the connector;

a release member slidably carried on the fitting and having first and second ends, the first end slidable into the connector to engage and deflect the deflectable legs of the retainer radially outward from the annular flange to enable separation of the fitting and the connector; and

tool means for effecting axially sliding of the release member into the connector, the tool means including;

first and second pivotally connected jaw levers, each having a bifurcated jaw end with an open ended aperture respectively sized for engagement with the second end of the connector and about the fitting adjacent the second end of the release member such that pivotal movement of the jaw ends in a direction causing relative closing movement of the jaw ends toward each other simultaneously causes the jaw ends to engage the second end of the connector and the second end of the release member to effect axial movement of the retainer relative to the connector to axially urge the first end of the release member into engagement with the deflectable legs of the retainer in the connector to de-couple the deflectable legs from the fitting to enable separation of the fitting and the connector.

2. The combination of claim 1 wherein the apertures in each bifurcated jaw are open-ended slots.

3. The combination of claim 2 wherein:

each of the slots has a U-shape extending from the open end.

4. The combination of claim 1 wherein:

the width of the apertures in the bifurcated jaws are different from each other.

5. The combination of claim 1 wherein:

the bifurcated jaw ends are non-removably mounted on the jaw levers.

6. The combination of claim 1 further comprising:

means for releasably attaching the bifurcated jaw ends to the jaw levers.

7. The combination of claim 6 wherein the releasable attaching means comprises:

fastener means, extending through each of the bifurcated jaw ends and the associated jaw levers.

8. The combination of claim 1 wherein each of the bifurcated jaw ends comprises:

a generally planar disk; and

a plurality of circumferentially spaced fork portions formed on the disk, each fork portion including an open ended aperture extending from an outer end of each fork portion.

9. The combination of claim 8 wherein:

the aperture in each fork portion has a different width from the width of the apertures in the other fork portions.

12. The combination of claim 1 further comprising:

an electrically insulating material layer disposed on a surface of each bifurcated jaw end engagable with the fitting and the connector.

13. The combination of claim 12 wherein:

the electrically insulating material layer is a pad affixed to each bifurcated jaw end.

14. The combination of claim 12 wherein:

the electrically insulating material layer is a coating disposed over each bifurcated jaw end.

15. The combination of claim 1 wherein the tool means further comprises:

the first and second jaw levers each having a handle end portion opposed from the jaw end;

pivot means for pivotally connecting the first and second levers together for pivotal movement of the jaw ends toward each other upon movement of the handle end portions toward each other.

16. The combination of claim 15 further comprising:

means for axially adjusting the spacing between the jaw ends of the first and second jaw levers.

17. The combination of claim 15 wherein the pivot means comprises:

a pivot pin fixedly mounted on an intermediate portion of one of the first and second jaw levers; and

a slot formed in the other of the first and second jaw levers and slidably receiving the pivot pin therein.

10. A tool adapted for releasing fittings from connectors coupled together by a retaining element disposed within the connector and releasable from the fitting on axial sliding movement of a release member mounted in one end of the connector concentrically about the fitting, the tool comprising:

first and second pivotally connected jaw levers, each having a bifurcated jaw end respectively engageable with the connector and the release member such that pivotal movement of the jaw ends in a direction causing relative closing movement of the jaw ends toward each other simultaneously causes the jaw ends to engage the connector and axially urge the release member into engagement with the retaining element in the connector de-coupling the retaining element from the fitting to enable separation of the fitting and the connector;

means, attached to one of the first and second jaw levers, for connecting the tool to electrical ground.

11. The tool of claim 10 wherein the connecting means comprises:

an electrical conductor having first and second ends, the first end fixedly attached to one of the first and second jaw levers; and

attachment means, connected to the second end of the conductor, for attaching the conductor to electrical ground.

18. A tool adapted for releasing fittings from connectors coupled together by a retaining element disposed within the connector and releasable from the fitting on axial sliding movement of a release member mounted in one end of the connector concentrically about the fitting, the tool comprising:

first and second levers, each having a handle end portion and a jaw end portion;

pivot means for pivotally connecting the first and second members together for pivotal movement of the jaw end portions toward each other upon movement of the handle portions toward each other;

a first bifurcated jaw mounted on the jaw end of the first member, the first bifurcated jaw including an aperture sized for releasible disposition about the fitting;

a second bifurcated jaw mounted on the jaw end of the second member, the second bifurcated jaw including an aperture sized for releasible disposition about the connector;

means, attached to one of the first and second levers, for connecting the tool to electrical ground; and

wherein

forced movement of the jaw end portions together urges the first and second bifurcated jaws toward each other such that the first and second bifurcated jaws respectively engage the connector and simultaneously urge the release member into engagement with the retaining element in the connector to disengage the retaining element from the fitting to enable separation of the fitting and the coupling.

19. The tool of claim 18 wherein the connecting means comprises:

an electrical conductor having first and second ends, the first end fixedly attached to one of the first and second levers; and

attachment means, connected to the second end of the conductor, for attaching the conductor to electrical ground.