Ergonomic crimping apparatus

Details Ergonomic crimping apparatus Ergonomic crimping apparatus

2002-01-16

2003-10-07

Crane, Daniel C. (Department: 3725)

Metal deforming

With means to actuate both elements of tool-couple

Handle actuated

C072S409010, C081S313000, C029S751000

Reexamination Certificate

active

06629443

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a crimp tool, and more particularly, to an ergonomic crimping apparatus for steadily fastening a terminal onto a wire with ease.
2. Description of the Prior Art
Typically, a crimp tool is used to fasten a terminal onto a wire. FIG.
1
and
FIG. 2
illustrate a prior art crimp tool. As shown in
FIG. 1
, the crimp tool includes a fixed jaw
10
a
and a movable jaw
11
a
. Die
12
a
and
13
a
are installed on the distal ends of the fixed jaw
10
a
and movable jaw
11
a
, respectively. The fixed jaw
10
a
is connected to a handle
14
a
and the movable jaw
11
a
is pivotally coupled with a handle
15
a
. In use, as shown in
FIG. 2
, a user presses the handle
15
a
that actuates the movable jaw
11
a
to move toward the fixed jaw
10
a
. By this way, the terminal (not shown) gripped by the die
13
a
of the movable jaw
11
a
may be crimped by the die
12
a.
Still referring to FIG.
1
and
FIG. 2
, the prior art crimp tool further includes a ratchet mechanism
16
a
mounted between the fixed jaw
10
a
and the handle
15
a
. When the handle
15
a
is pressed, the ratchet provides repeatable terminations. The handle
15
a
is not released until that the handle
15
a
cannot be pressed further.
However, the prior art encounters several drawbacks. First, a larger stress is required to actuate the movable jaw
11
a
. Second, precise fastening onto the wire is somewhat not easy to be achieved, since the terminal to be fastened onto the wire is typically gripped by the die
13
a
of the movable jaw
11
a.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to provide an improved crimp to solve the above-mentioned problems.
According to the claimed invention, the improved crimp tool, comprising a fixed jaw assembly consisting of two connected halves and a chamber therebetween, wherein one end of the fixed jaw assembly is a fixed jaw and the other end is a first handle; a movable jaw assembly positioned in the chamber, wherein the movable jaw assembly comprises a movable jaw pivotally mounted thereon; a second handle having one end pivotally connected to the movable jaw assembly; a connecting rod positioned in the chamber and the connecting rod having one end pivotally connecting to the second handle and the other end connecting to the fixed jaw assembly; and a ratchet mechanism installed between the fixed jaw assembly and the second handle.
It is to be understood that both the forgoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the invention as claimed. Other advantages and features of the invention will be apparent from the following description, drawings and claims.


REFERENCES:
patent: 2696747 (1954-12-01), Bergan
patent: 3212317 (1965-10-01), Lynch
patent: 3514990 (1970-06-01), Bauknight
patent: 4526070 (1985-07-01), Wiener et al.
patent: 5012666 (1991-05-01), Chen et al.
patent: 5280716 (1994-01-01), Ryan et al.
patent: 6161416 (2000-12-01), Wilhelm et al.
patent: 6289712 (2001-09-01), Beetz et al.
patent: 6508149 (2003-01-01), Heggemann et al.

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