Press connecting pliers for pins

Details Press connecting pliers for pins Press connecting pliers for pins

2003-03-19

2004-05-11

Shakeri, Hadi (Department: 3723)

Compound tools

Cutter combined with other tool or tools

C007S107000, C007S129000, C072S409140, C029S751000, C081S313000, C081S363000

Reexamination Certificate

active

06732393

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a pair of pin press-connecting pliers, and especially to a pin press-connecting pliers structure for which the processing of pressing and assembling process are simplified to thereby reduce the cost of production. Particularly, a connecting seat can be provided at a pivot connecting end of a first handle with a second handle of the press connecting pliers to consolidate the press connecting pliers structure; the connecting seat has at least a concave portion at the press connecting area of the first handle and the second handle for resting of a wire thereon, and has a knife provided on a corresponding handle for peeling, cutting wire in cooperation with the concave portion, and the function of the pliers can be improved.
2. Description of the Prior Art
As shown in
FIG. 1
depicting a conventional structure of a pair of pin press-connecting pliers, wherein the press connecting pliers comprises mainly a first handle B
1
and a second handle B
2
; the first handle B
1
is provided with a first die seat B
3
and a second die seat B
4
. The second die seat B
4
is fixedly provided on the tailing end of the first handle B
1
; the first die seat B
3
is provided on the second handle B
2
via a pusher rod B
5
, the other end of the pusher rod B
5
is connected with the second handle B
2
via a connecting rod B
6
; thereby when in use, the pin A
2
and a wire A
1
are fixedly placed on the first die seat B
3
and the second die seat B
4
respectively. By the press connecting action of the first handle B
1
and the second handle B
2
, the connecting rod B
6
moves the pusher rod B
5
to move the first die seat B
3
toward the second die seat B
4
, then pressing action of the first handle B
1
and the second handle B
2
makes press connecting of the pin A
2
with the wire A
1
.
However, by virtue that the first handle B
1
and the second handle B
2
of the conventional pin press-connecting pliers are made of cast metal, and the pusher rod B
5
and the first handle B
1
must be provided therebetween a lining sleeve B
7
to assure parallel sliding of the pusher rod B
5
, thereby the process of manufacturing of the entire press connecting pliers and assembling of the components are more complicated; and particularly, the entire press connecting pliers can only be used for pressing firm and connecting of the pin A
2
to the wire A
1
, it is functionally insufficient in the practical line distribution of the pin A
2
and the wire A
1
.
SUMMARY OF THE INVENTION
The pin press-connecting pliers of the present invention is constructed by providing a connecting seat at a pivot connecting end of a first handle with a second handle of the press connecting pliers, by providing a guiding portion on the inner side of the first handle, a first press-connecting portion in the guiding portion, a linking member effecting connection of the first press-connecting portion with the second handle, and a second press-connecting portion fixedly provided on the tailing end of the guiding portion via a die block; thereby, processing as well as assembling of the entire press connecting pliers can be simplified, and thereby the cost of production can be reduced. And the connecting seat has at least a concave portion at the press connecting area of the first handle with the second handle for resting of a wire thereon, and has a knife provided on a corresponding handle for peeling, cutting wire in cooperation with the concave portion, and the function of the pliers can be improved.


REFERENCES:
patent: 2875655 (1959-03-01), Lako
patent: 3204445 (1965-09-01), Fila
patent: 3328872 (1967-07-01), Reem
patent: 4144738 (1979-03-01), Dziura et al.
patent: 5042286 (1991-08-01), Wiebe et al.
patent: 5934137 (1999-08-01), Tarpill
patent: 5983489 (1999-11-01), Jee

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