Compound tools – Plier type – With tool or plier handle
Reexamination Certificate
1999-10-25
2001-05-08
Smith, James G. (Department: 3723)
Compound tools
Plier type
With tool or plier handle
C007S167000, C007S168000, C030S260000, C081S416000
Reexamination Certificate
active
06226822
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an improved tool structure, and more particularly to a tool structure having double-lever structure and can be folded to reduce occupied room.
FIG. 10
shows an existent tool having two grips
8
and a tool head
81
. The front ends of the two grips
8
are pivotally connected with the tool head
81
. The bottom ends of the grips
8
are pivotally connected with various kinds of tools with multiple usage such as a blade
82
, a screwdriver, etc. which can be turned outward for use. The two grips
8
can be folded in reverse directions toward the end of the tool head
81
as shown in
FIG. 11
so as to shorten the total length of the tool and reduce storage room of the tool as well as facilitate carriage of the tool.
However, in use of such tool, only the grip
8
provides a length of the force application arm so that the strength cannot be effectively saved to facilitate use of the tool.
FIG. 12
shows another type of existent tool which has double-lever structure. The tool also has two grips
9
and a tool head
91
. The front ends of the two grips
9
are pivotally connected with the tool head
91
. In addition, the two grips
9
are further pivotally connected with a pivot section
92
spaced from the pivot section
911
of the tool head
91
by a certain distance. By means of the double-lever structure between the grips
9
and the tool head
91
, the strength for operation of the tool can be saved.
However, in such tool, the end of the tool head
91
is disposed with a pivot section
911
and the ends of the grips
9
are disposed with another pivot section
92
. Moreover, the pivot sections
911
,
92
must be respectively spaced from the end section
921
by a certain distance so as to save strength. Therefore, the total length of the tool is considerably long and the tool will occupy quite large room. As a result, it is inconvenient to store or carry the tool.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a tool structure having double-lever structure. By means of an opening of a first pivot section of the grip, the first pivot sections of the grips can be separated, permitting the grips to be folded to two sides of the tool head. This reduces the room occupied by the tool and facilitates storage and carriage of the tool. Also, the tool can be operated with strength saved.
It is a further object of the present invention to provide the above tool structure in which the grips are equipped with multiple tools with various usage to meet the requirements in different fields.
According to the above objects, the tool structure of the present invention includes a tool head and two grips. The tool head is composed of two clamping members respectively disposed with two second pivot sections which are pivotally connected with each other by a second pivot shaft. The lower ends of the clamping members are respectively formed with two fixing holes.
Each of the grips is disposed with a first pivot section. The first pivot section of one grip is disposed with a first pivot shaft. The first pivot section of the other grip is disposed with a pivot hole. The grips are pivotally connected with each other via the first pivot sections. The first pivot sections of the grips are spaced from the second pivot section of the tool head by a certain distance. The grips are respectively formed with two fixing holes. A fixing pin is passed through the fixing holes of the tool head and the grips to fix the same. The pivot hole of the grip is formed with an opening, whereby the first pivot shaft of the other grip can be detached from the opening so as to separate the first pivot sections of the two grips from each other.
The present invention can be best understood through the following description and accompanying drawings wherein:
REFERENCES:
patent: 6023805 (2000-02-01), Lin
patent: 6070504 (2000-10-01), Frazer
patent: 6128943 (2000-10-01), Lemmens
patent: 6131495 (2000-10-01), Chen
Smith James G.
Wilson Lee
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