Tools – Tool jaw – Crossed handles
Reexamination Certificate
1999-07-15
2001-01-23
Scherbel, David A. (Department: 3723)
Tools
Tool jaw
Crossed handles
C081S416000, C081S394000
Reexamination Certificate
active
06176158
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a pincers in which by means of a fixing member and a resilient member, the jaw sections of the two main bodies are kept in a good mating relationship.
FIGS. 9 and 10
show an existing pincers including two main bodies
9
which are pivotally connected with each other by a rivet
91
. A resilient member
93
is disposed between the pivot sections
92
of the main bodies
9
. Two ends of the resilient member
93
are respectively inserted into the sockets
94
of the main bodies
9
. The resilient member
93
serves to keep the pincers in an open state at normal time.
The above pincers has a hidden resilient member
93
. However, the pincers is required to have higher hardness and needs to heat-treated. The material of the resilient member
93
is different from that of the main bodies
9
. In the case that they are together heat-treated. The resilient member
93
will become cracky and tend to break. In the case that the main bodies
9
are first heat-treated and then assembled with the resilient member
93
, due to quenching, the work piece will be deformed. This will lead to difficulty in assembly. Moreover, the blade sections
95
are hard to match with each other so that after assembled, the shearing effect is poor.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a pincers in which by means of a treatment member, a fixing member and a resilient member disposed between the main bodies and the fixing member, the pincers has a good mating relationship so that the using effect of the pincers is improved.
It is a further object of the present invention to provide the above pincers which can be easily assembled.
The present invention can be best understood through the following description and accompanying drawings wherein:
REFERENCES:
patent: 3575070 (1971-04-01), Nichols
patent: 4669340 (1987-06-01), Igarashi
patent: 974491 (1961-02-01), None
Ojini Anthony
Rosenberg , Klein & Lee
Scherbel David A.
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