JP3275529B2 - Driving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving machine having a stopper guide for returning a stopper coming out of a driving passage toward an opening side opened to a magazine side to the driving passage.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show an example of a conventional driving machine. Driving machine of this type, stopper 1 of the multi several are connected at least two upper and lower positions of the stop 1 by the connecting body belt made of wire, plastic, or the like, using a connecting fastener housed in the magazine Do the driving work. That is, the stoppers 1 are fed one by one to a driving passage 2 by a feeder (not shown), and are driven by a piston. When the stopper 1 is fed into the driving passage 2, an opening 5 is provided in the driving passage 2 so that the stopper 1 can pass through.

[0003] When the driving operation is performed by the driving machine having the above structure, particularly when the stopper 1 connected by a wire is used, the head of the stopper 1 hits the feeder when it is driven out by a piston. Alternatively, when the stopper 1 comes off from below the connecting body, the lower end of the stopper 1 may be inclined to the opening 5 side. If the stopper 1 is tilted, there is a problem that it is bent and driven, or the driving position is difficult to determine. Therefore, in a conventional driving machine, the lower end of the inclined stopper 1 is corrected and driven. A stopper guide groove 4 having a stepped portion 6 inclined toward the magazine is provided for guiding to the center of the passage 2. That is, the stopper guide groove 4 has a width a through which the shaft of the stopper 1 can pass, and an angle d from a range c larger than a range b in which the lower end of the stopper 1 is displaced from the driving passage 2 toward the opening 5. However, it is provided so as to be inclined with respect to the driving passage 2.

[0004]

The driving machine of the above construction is
The shape of the stopper guide groove 4 is determined by the range b in which the stopper 1 deviates from the driving passage 2 toward the opening 5 and the angle d of inclination. For this reason, in a driving machine in which the length of the driving passage 2 must be increased, the distance from the intersection of the stopper guide groove 4 and the driving passage 2 to the tip of the driving passage 2 becomes longer, and The tool 1 collides with the wall of the driving passage 2 many times, and the driving position of the stopper 1 ejected from the driving passage 2 becomes unstable. If the stopper guide groove 4 is provided near the tip of the driving passage 2 by changing the angle d, the position of the stopper 1 ejected from the driving passage 2 cannot be guided to the center of the driving passage 2. There was a problem. If the stopper guide groove 4 is positioned near the tip of the driving passage 2 without changing the angle d, the width of the portion where the stopper 1 is fed, that is, the upper width c of the stopper guide groove 4 may be increased. In particular, when the short stop 1 is driven, the short stop 1 may be turned sideways during the driving process. There is a problem that if the stopper 1 is struck out on the piston while being in the horizontal position, a nail jam may occur in the injection portion 3. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to guide the position of a stopper ejected from a driving passage to the center of the driving passage.

[0005]

The object of the present invention is to make the stopper guide groove parallel to the driving passage from a range in which the stopper comes off from the driving passage toward the opening side, and the stopper guiding groove is formed in the stopper guiding groove. This is achieved by providing two step portions and positioning the upper step portion near the lower end of the stopper.

[0006]

The stopper guide groove constructed as described above is disengaged from the driving passage toward the opening even when a short stopper is driven by a driving machine in which the length of the driving passage must be increased. The stopper is picked up, and the stopper is guided to the center of the driving passage by the inclined portion.

[0007]

1 to 3 show an embodiment of the driving machine according to the present invention. In the figure, the driving machine has an injection part 3 including a driving passage 2 from which the stopper 1 is driven, and the driving passage 2 is provided with an opening 5 for feeding the stopper 1. I have. Also, in the driving passage 2, a stopper guide groove 4 for returning the stopper 1 coming off from the driving passage 2 to the opening 5 side when the stopper 1 is driven out to the driving passage 2.
Is provided.

The stopper guide groove 4 is set to have a width a through which the shaft of the stopper 1 can pass, and has a first step portion 7 and a second step portion 8. The first step 7 is inclined at an angle d with respect to the driving passage 2. Further, the first stepped portion 7 and the second stepped portion 8 are provided in the stopper guide groove 4 between a range c which is larger than a range b in which the stopper 1 is disengaged from the driving passage 2 toward the opening 5 and flaps. Have been.

With the above construction, in a driving machine in which the driving passage 2 must be lengthened, the stopper guide groove 4 is required.
The stopper 1 does not increase the space above the stopper guide groove 4 to which the stopper 1 is fed, even if the stopper 1
In the case of (1), the collision occurs with the second step portion 8, and in the case of the long stopper 1, after the collision with the first step portion 7, the stopper is guided so as to be located at the center of the driving passage 2. That is, according to the present invention, in a driving machine having a long driving passage, the driving accuracy of the stopper 1 can be improved to improve workability and safety.

[0010]

According to the present invention, since two stop portions are provided in the stopper guide groove, and the upper step portion can be located near the lower end of the stopper to be driven, a short stop is provided. In the case of, the lower end of the fastener is received at the upper step, and in the case of a long fastener, it is received at the lower step, so that any fastener of any length can be securely returned to the driving path and returned to the center of the driving path. Guiding can be performed, driving accuracy can be improved, and safety can be improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing one embodiment of the driving machine of the present invention.

FIG. 2 is a view as seen from A in FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a side view showing an example of a conventional driving machine.

FIG. 5 is a view as seen from C in FIG. 4;

[Explanation of symbols]

1 is a stopper, 2 is a driving passage, 3 is an injection portion, 4 is a stopper guide groove, 5 is an opening, 7 is a first step portion, and 8 is a second step portion.

Claims (1)

(57) [Claims] 1. A magazine for accommodating a coupling stop, and a magazine
The connection stopper inside the magazine is opened through the opening provided on the magazine side.
Piss to hit the top of the supplied coupling stop
An injection section having a driving passage for guiding a ton and a stopper;
The upper part is inclined toward the magazine side with respect to the
It is provided on the magazine side and has a width that allows the shaft of the stopper to pass through
A stopper guide groove, and a driving passage when the stopper is launched.
The stopper that comes off from the opening to the opening side is driven by the stopper guide groove
A driving machine that is returned to the side, wherein the stopper guide groove, provided with two stepped difference portion inclined to the magazine side, to be located above the step portion in the vicinity of the stopper lower end And a driving machine.