Cutlery – Cutting tools – Plural cooperating blades
Reexamination Certificate
2000-05-17
2002-02-12
Payer, Hwei-Siu (Department: 3724)
Cutlery
Cutting tools
Plural cooperating blades
C030S192000
Reexamination Certificate
active
06345446
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a gardening implement, and more particularly to a pair of gardening shears.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a pair of gardening shears of the prior art comprises a first tool body
1
which has a cutting portion
101
and a handle body
102
. The first tool body
1
is provided with a pivoting point
2
for pivoting a blade piece
401
which is provided in the lower end with a pivoting point
3
for pivoting a handle body
402
. The blade piece
401
and the handle body
402
form a second tool body
4
. The handle body
102
of the first tool body
1
and the handle body
402
of the second tool body
4
are connected with a handle
5
,
6
. The tool
1
is provided with a sector gear
103
. The second tool
4
is provided at the top of the handle body
402
with a sector gear
403
.
The prior art pair of gardening shears is defective in design in that the twigs or leaves are easily caught between the sector gears
103
and
403
. As a result, the sector gears
103
and
403
fail to mesh with each other completely, thereby shortening the service life span of the prior art gardening shears.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a pair of gardening shears free from the drawbacks of the prior art gardening shears described above.
The pair of gardening shears of the present invention comprises a fixed jaw, a movable jaw, a rocking arm, and a connection arm. The fixed jaw and the movable jaw are pivoted together. The fixed jaw is pivoted at the lower end with the rocking arm. The movable jaw is connected with the connection arm. The movable jaw is provided with a first transmission portion. The rocking arm is provided with a second transmission portion which is engaged with the first transmission portion. The connection arm is provided with a protective portion for shielding the first transmission portion and the second transmission portion, which are thus free from interference by the twigs or leaves of a garden plant being pruned by the gardening shears of the present invention. The protective portion is provided with a see-through hole to facilitate the inspecting of the state of the engagement of the first transmission portion with the second transmission portion.
REFERENCES:
patent: 397698 (1889-02-01), Cooper
patent: 508022 (1893-11-01), Kamphaus
patent: 1897532 (1933-02-01), Pitcher
patent: 5570510 (1996-11-01), Linden
patent: 5689888 (1997-11-01), Linden
Browdy and Neimark
Payer Hwei-Siu
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