In-line hydraulic crimp tool

Patent metadata

Field	Value
Publication number	US-10084277-B2
Application number	US-201715584658-A
Country	US
Kind code	B2
Filing date	May 2, 2017
Priority date	May 2, 2016
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

A crimp tool having jaw members joined in a tongue-in-groove connection held in place by a locking pin. Each jaw member being tapered and including weight reducing pockets defined in respective sidewalls. Each jaw member includes a locking tab on an outside edge that mates with a respective locking tab opening in the neck of the tool. When the locking pin is removed, the jaws of the tool separate and rotate away from one another until their respective locking tabs engage their respective locking tab opening, thereby holding the opened jaws in the neck of the tool.

First claim

What is claimed is:

1. A jaw member assembly for a crimp tool comprising:
a first jaw member having a front end and a back end, said front end defining a crimp area and said back end defining a groove and a bore;
a second jaw member having a front end and a back end, said front end defining a crimp area and said back end having a tongue portion sized for receipt in said groove of said first jaw member and a bore;
said respective bores being alignable when said first jaw member and said second jaw members are connected in a tongue-in-groove arrangement;
a spring member having a first end attached to said first jaw member and a second end attached to said second jaw member;
a locking pin extending through said first and second bore when said bores are aligned; and
a tool neck for receiving said jaw members, and said jaw members including respective locking tabs on an outside edge of said jaw member.

2. The jaw member assembly of claim 1 , further comprising:
a bushing inserted in and coterminous with the aligned bore members of said first and second jaw members.

3. The jaw member assembly of claim 1 , wherein said front ends of said jaw members are tapered from back to front.

4. The jaw member assembly of claim 3 , wherein said front ends are tapered at 6 degrees.

5. The jaw member assembly of claim 1 , wherein said tool neck includes a pair of tab notches, wherein said tool jaws rotate away from one another until the respective locking tab of each jaw member enters its respect tab notch.

6. The jaw member assembly of claim 1 , wherein each of said jaw members includes a recessed pocket area.

7. The jaw member assembly of claim 6 , wherein a pocket area is disposed on said back ends of said jaw members.

8. A jaw member assembly for a crimp tool comprising:
a first jaw member having a front end and a back end, said front end defining a crimp area and said back end defining a bore;
a second jaw member having a front end and a back end, said front end defining a crimp area and said back end defining a bore;
said respective bore opening members being aligned and a locking pin extending through said bores to hold said jaw members in cooperative engagement;
a spring member having a first end attached to said first jaw member and a second end attached to said second jaw member; and
said front end of said jaw members being formed in a generally I-shaped shaped configuration.

9. The jaw member assembly of claim 8 , further comprising:
a bushing inserted in and coterminous with the aligned bore members of said first and second jaw members.

10. The jaw member assembly of claim 9 , wherein said I-shaped configuration is tapered along its length approximately 6 degrees.

11. The jaw member assembly of claim 9 , further comprising a tool neck for receiving said jaw members, and said jaw members including respective locking tabs on an outside edge of said jaw member.

12. The jaw member assembly of claim 11 , wherein said tool neck includes a pair of tab notches, wherein said tool jaws rotate away from one another until the respective locking tab of each jaw member enters its respect tab notch.

13. A battery-powered crimp tool comprising:
a battery pack;
a handle portion;
a gear box disposed in said handle portion;
a control switch disposed on said handle portion and operatively engaged to said gear box;
a neck portion driven by said gear box;
a tool head connected to said neck portion, said tool head comprising first and second jaw members, said first jaw member having a front end and a back end, said front end defining a crimp area and said back end defining a first bore;
said second jaw member having a front end and a back end, said front end defining a crimp area and said back end defining second bore;
said first and second bores being selectively alignable when said first jaw member and said second jaw members are connected;
a spring member having a first end attached to said first jaw member and a second end attached to said second jaw member;
a locking pin extending through said first and second bore when said bores are aligned;
wherein when said control switch is in a first position the jaw members are in a first non-crimp position and when said switch is moved to a second position said gear box provides force to a roller on said neck portion to rotate said jaw members together in a second crimp position;
a first locking tab disposed on an outside edge of said first jaw member, and a second locking tab disposed on an outside edge of said second jaw member, a first locking tab notch on a first side of said neck portion and a second locking tab notch on a second side of said neck portion opposite said first side, wherein when said locking pin is removed from said bore, said first and second jaw members rotate apart and descend until said respective locking tabs mate with a respective locking notch and are prevented from falling off the neck of the tool.

14. The crimp tool of claim 13 , wherein said front ends of said jaw members are tapered from back to front.

15. The crimp tool of claim 14 , wherein said front ends are tapered at 6 degrees.

16. The crimp tool of claim 13 , wherein said first jaw member defines a groove opening and said second jaw member includes a tongue extension, wherein said first and second jaw members are connectable in a tongue-in-groove arrangement.

17. The crimp tool of claim 16 , further comprising a bushing extending through said first and second bore openings when said jaw members are connected.

18. The crimp tool of claim 13 , further comprising a pump,
a wobble plate, and
a ball bearing disposed at an interface between the pump and the wobble plate, wherein in operation as said wobble plate moves through its cycle an axis of said wobble plate changes in a conical pattern.

19. The crimp tool of claim 13 , wherein each of said jaw members include pocket areas where the cross section of the jaw is thinner than the cross section of the area surrounding the pockets, said pocket areas having a cross sectional thickness that tapers towards said front end of said jaw members.

Assignees

• Hubbell Inc

Inventors

• Wason Peter Matthew
• Lefavour John

Classifications

• H01R43/0427 Primary

  fluid actuated hand crimping tools · CPC title

• B25B27/10 Primary

  inserting fittings into hoses · CPC title

• B25B28/00

  Portable power-driven joining or separation tools (B25B21/00 takes precedence) · CPC title