Elongated-member-driving apparatus – With interlock means
Reexamination Certificate
2000-06-28
2001-01-09
Smith, Scott A. (Department: 3721)
Elongated-member-driving apparatus
With interlock means
C227S142000
Reexamination Certificate
active
06170729
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a nailing depth adjusting device for a power nailer wherein a rotatable member threadedly extends through a link which is slidably received in a barrel of the nailer so that the link can be retractable relative to the barrel by rotating the rotatable member.
BACKGROUND OF THE INVENTION
A conventional nailing depth adjusting device for a power nailer is shown in FIG.
1
and generally includes a link
10
having a distal end extending from a front of the power nailer and a second end of the link
10
has a threaded section to which a nut
12
is mounted. The threaded section is rotatably supported by a first end of a push plate
11
and a second end of the push plate
11
contacts against a trigger means. The second end of the push plate
11
is used to release to a lock status of the trigger means so that when the push plate
11
is pushed toward the trigger means, the trigger can be pushed to eject a leading nail. A spring
13
is mounted to the threaded section of the link
10
and biased between the nut
12
and the first end of the push plate
11
. A cap
14
is connected to the first end of the push plate
11
and encloses the threaded section of the link
10
from dust. A longer distance the link
10
is extended from the front end of the nailer, a shorter depth that the nailer penetrates into an object contacting the link
10
. The movement of the link
10
is controlled by rotating the nut
12
. However, the threaded section of the link
10
could be disengaged from the first end of the push plate
11
if the user rotates the nut
12
without noting the engagement between the threaded section and the nut
12
.
The present invention intends to provide a nailing depth adjusting device for a power nailer wherein the link will never drop or be disengaged from the push member.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a nailing depth adjusting device for a power nailer and comprising a link having a nose rod on a first end of the link and a connection plate extends laterally from a second end of the link. The connection plate has a threaded passage defined therein and a flange extends radially outward therefrom. A rotatable member has a threaded section on a first end thereof for extending through the threaded passage of the connection plate, and an engaging section on a second end of the rotatable member. A flange extends radially outward from a distal end of the threaded section. A push member has a first end rotatably inserted into the engaging section, and a second end of the push member contacts a trigger means of the nailer.
The primary object of the present invention is to provide a a nailing depth adjusting device for a power nailer wherein the rotatable member will never be disengaged from the link.
The object of the present invention is to provide These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.
REFERENCES:
patent: 5219110 (1993-06-01), Mukoyama
patent: 5385286 (1995-01-01), Johnson, Jr.
patent: 5579977 (1996-12-01), Yang
patent: 6012622 (2000-01-01), Weinger et al.
patent: 6024267 (2000-02-01), Chen
Basso Industry Corp.
Baxley Charles E.
Smith Scott A.
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