Elongated-member-driving apparatus – With means to move or guide member into driving position – Including supply magazine for constantly urged members
Reexamination Certificate
2001-04-05
2001-10-02
Smith, Scott A. (Department: 3721)
Elongated-member-driving apparatus
With means to move or guide member into driving position
Including supply magazine for constantly urged members
C227S136000
Reexamination Certificate
active
06296167
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a nail cartridge for a pneumatic nail driving device, more particularly to a nail cartridge for a pneumatic nail driving device with a nail pushing plate that is capable of moving in a longitudinal direction and a transverse direction relative to the longitudinal direction.
2. Description of the Related Art
FIG. 1
illustrates a conventional pneumatic nail driving device
10
which includes an air gun body
11
, a nail cartridge
20
connected to the air gun body
11
and adapted to receive nails
30
therein, and a guiding plate
12
facing and cooperating with an end face of the nail cartridge
20
to define a nail feeding passage therebetween so that the nails
30
in the nail cartridge
20
can be pneumatically driven through the nail feeding passage.
The nail cartridge
20
includes an elongated housing
21
extending in a longitudinal direction and defining therein a nail groove for receiving the nails
30
, a plunger
22
disposed and movable in the longitudinal direction in the nail groove in the housing
21
, and an urging member
222
for urging the plunger
22
to push the nails
30
in the nail groove to move toward the guiding plate
12
.
The pneumatic nail driving device
10
is disadvantageous in that since the plunger
22
is disposed in the nail groove, refill of the nails
30
into the housing
21
requires detachment of the plunger
22
from the housing
21
for clearing the nail groove. The detachment and subsequent assembly of the plunger
22
is laborious and time-consuming.
SUMMARY OF THE INVENTION
Therefore, it is an object of the present invention to provide a nail cartridge for a pneumatic nail driving device that is capable of overcoming the aforesaid drawbacks.
According to the present invention, a nail cartridge for a pneumatic nail driving device comprises: an elongated cartridge housing that extends in a longitudinal direction, that has top and bottom ends, front and rear sides, and left and right open ends and that defines therein a nail groove extending in the longitudinal direction from the left open end to the right open end and extending upwardly from the bottom end of the housing and adapted to receive nails which are to be aligned in the longitudinal direction, a plate receiving space extending along the length of the nail groove and extending upwardly from the nail groove to the top end of the housing and having a front side, and a sliding passage disposed sidewisely at the front side of the plate receiving space and extending along the length of the plate receiving space, the housing including upper and lower partitions that have top and bottom ends, that are disposed between the plate receiving space and the sliding passage, that extend along the length of the sliding passage, and that are vertically registered with each other to define therebetween a gap so as to permit the sliding passage to be in spatial communication with the plate receiving space, the housing being formed with upper and lower recesses which are vertically registered with each other, which extend from the top ends of the upper and lower partitions through the bottom ends of the upper and lower partitions, and which are disposed adjacent to the right open end of the housing; a nail pushing plate disposed and movable in the longitudinal direction in the plate receiving space, spanning the upper and lower partitions, and having an upper portion received in the plate receiving space and a lower portion extending downwardly from the upper portion into the nail groove, the nail pushing plate being adapted to push the nails in the nail groove to move from the right open end to the left open end; a first urging member disposed in the sliding passage and having one end that is secured to the housing adjacent to the left open end of the housing, and an opposite end that is movable in the longitudinal direction in the sliding passage and that is connected to the nail pushing plate so as to urge the nail pushing plate to move from the right open end to the left open end of the housing; and a second urging member for urging the nail pushing plate in a manner that when the nail pushing plate is moved in the plate receiving space to a first position where the upper and lower portions of the nail pushing plate are laterally and respectively registered with the upper and lower recesses, the nail pushing plate will be moved frontwardly by the second urging member to a second position where the upper portion of the nail pushing plate is selectively received in one of the sliding passage and the gap and is retained therein, and where the lower portion of the nail pushing plate is sidewisely offset from the nail groove so as to permit the nail groove to be cleared of the nail pushing plate and to thereby permit loading of the nails into the nail groove from the right open end of the housing.
REFERENCES:
patent: 5297713 (1994-03-01), Perra et al.
patent: 5322189 (1994-06-01), Oda
patent: 5335800 (1994-08-01), Liu
patent: 5588577 (1996-12-01), Chen
patent: 5626274 (1997-05-01), Shkolnikov et al.
patent: 6056181 (2000-05-01), Chuang
patent: 6076721 (2000-06-01), Yang
patent: 6149046 (2000-11-01), Ho et al.
Apach Industrial Co., Ltd.
Smith Scott A.
Trop Pruner & Hu P.C.
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