JPS59156673A - Device for removing residual section of connecting piece of driving machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for removing a piece of glue remaining in a driving machine that successively drives a plurality of fasteners such as nails into wood one after another.

Fig. 1 is a side view showing a part of a driving machine driven by a conventionally known pneumatic or drowsy drive unit.

In the figure, 2 is a clay figurine with a tick, and a large number of them are connected in a single row by connecting pieces 11' connected by resin or wire, etc., and stored in a holding bag 11 as a joint. . 3 is connected to the main body 4 with a switch, and the air or the 62 is fanned to the electric drive part (not shown).
The piston 5 of the drive unit installed in the main body 4 is driven, and the piston 5 is driven to impact the stop 2. 6 is the injection port, 7 is a stopper located inside the injection port, 8 is a mating material such as wood into which the stopper 2 is driven, and 9 is the stopper 2 after the stopper 7 is driven inside the injection port 6. This is the remaining part that is not locked. Reference numeral 10 denotes an opening opened in the side wall of the injection port 6, and the piston 5 is driven via the switch 3, and when the injection port internal position stopper 7 is struck and driven in, the opening 10 is connected via a driving means (not shown). The remaining portion 9 after being driven to suppress and removing the stopper 7 located inside the injection port 6 is discharged.

In the above structure, by pulling the switch 3, the piston 5 in the main body 4 descends, and the stopper 7 in the injection port 6 is impacted by an impact and automatically detaches from the connecting piece 1 and is driven into the mating material 8. It will be done. When the injection port internal position stopper 7 is ejected from the injection port 6 as shown in FIG. Since the parts 10 are fed out one after another, the remaining parts 9 extend forward for a long time, which obstructs the driving operation and has the disadvantage of poor operability.

In addition, as another method of driving the injection port internal position stopper 7 into the mating material 8 as shown in FIG. A method shown in FIG. 4, in which the parts are simultaneously driven in, is also known. However, in the case of this method, as shown in FIG. 5, there was a problem in that a part of the integrally stamped connecting piece 1 remained on the surface of the mating member 8, resulting in a poor finish.

The present invention was made in view of the above situation, and an object of the present invention is to provide a method for removing the remaining connecting piece of a driving machine, which can improve driving work efficiency and prevent a part of the connecting piece from remaining on the mating material. That is.

The connection piece remaining removal device for a driving machine according to the present invention includes a driving part formed inside the main body so as to drive a stopper by being driven by a driving source, and a switch attached to the main body Kjl) for driving the driving part. a magazine for storing a fastener assembly in which a large number of fasteners are connected to a connecting piece; an injection port formed at one end of the magazine through which the fasteners are ejected; The direction toward the outlet includes a driving means for sequentially feeding out the connecting piece, and an opening in the side wall of the injection port through which only the remaining part of the connecting piece after the stopper is driven is continuously fed out,
Means is provided on the outer side of the opening to cut off the remaining portion of the connecting piece that is discharged from the opening after the stopper is driven in.

Hereinafter, the connecting piece remaining removal device for a driving machine according to the present invention will be described with reference to FIGS. 6 to 8 using embodiments, in which the same parts as those in the conventional art are denoted by the same reference numerals, and the explanation of the structure of the same parts is omitted. 6 is a partially sectional side view, FIG. 7 is a perspective view seen from the upper left side of FIG. 6, and FIG. 8 is an explanatory diagram of the cutter operation of FIG. 7. In the figure, reference numeral 12 denotes a cutter, which is rotatably attached to the side wall above the opening 10 of the injection port 6 through a pin 13 at the middle portion of the cutter 12, and has a blade portion 12a1 and a pulling portion 12b. The winding portion 1 is wound around the pin 13.
4a and has a foot 14b that locks on the cutter 12, and a foot 14C that locks on the side wall of the injection port 6. The blade 12a is biased by the return spring 14 of the torsion spring to cut the remaining portion 9. It is held in the previous standby position.

By pulling and rotating the puller 12b clockwise from the position of the blade 12a in FIG. 12a returns to the position shown in FIG.

In the above structure, if the fasteners 2 are continuously driven in one after another, the remaining nine connecting pieces 1 will be ejected, that is, sent out, from the opening 1o of the injection port 6, as shown in FIGS. 6 and 7. Extend forward.

At this time, the pulling portion 12b of the cutter 12 is pressed against the main body 4 side by the return spring 14, and the blade portion 12a of the cutter 12 has a slight gap between it and the remaining portion 9, so that feeding of the remaining portion 9 is not hindered. There is no such thing.

As shown in FIG. 8, the remaining portion 9 of the connecting piece 1 extending forward is rotated by rotating the barb 12b of the cutter 12 clockwise, so that the vine 12 is rotated around the pin 13. The blade portion 12a cuts the remaining portion 9. After cutting, cutter 12
By restoring the return spring 14, it returns to its old position as shown in FIG. 7, so that there is no problem in the next driving operation.

In this way, the connection piece remaining removal device of the driving machine of this embodiment is as follows:
The remaining part of the connecting piece discharged from the opening after the fastener is driven is cut and removed by a cutter that is rotationally driven on the opening surface of the opening, so that the remaining part of the connecting piece after driving is removed. It does not get in the way when driving fasteners, and
Since the connecting piece is not driven integrally with the stopper, the finished state is good and the driving workability can be significantly improved.

FIG. 9 shows another embodiment, and the difference from the above embodiment is that in the above embodiment, the cutter 12 is rotated to cut the remaining portion 9, whereas in this embodiment, the cutter 12 is rotated along the axis of the injection port 6. The point is that the blade is driven reciprocally in the direction to cut. #￥9 In the figure, a 15Iri cutting device is used to connect the injection port opening side end 15a that loosely fits the opening end side outer periphery of the injection port 6, the switch side end 15b connected to the switch 3, and the inactive state of the switch 3. The blade part 12a is formed to be positioned below the remaining part 9 due to the tension of the spring 16. When the switch 3 is operated in the direction of the arrow, the piston 5 descends to perform the driving operation of the stopper 2, and the blade portion 12a is driven upward to cut the remaining portion 9. When loosened (released), the tension of the spring 16 causes the cutting device 15 to return to the position 11C in FIG. 9.

That is, in this embodiment, the remaining portion 9 is cut off each time the stopper 2 is driven in, whereas in the above embodiment, the pulling portion 12 is cut off.
It is cut every time you pull b. This example also has the same effects as the above example.

As described above, the connecting piece remaining removal device of the driving machine of the present invention has the effect of dramatically improving the driving workability without leaving any part of the connecting piece on the mating material.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a part of a conventional driving machine in cross section, Fig. 2 is a sectional view taken along the arrow ■-■ of Fig. 1, and Fig. 3 is an explanatory diagram of driving the stopper shown in Fig. 2. , 4 and 5 are explanatory diagrams of a driving method in which the connecting piece is cut together with the stopper, and FIG. 6 is a cross-sectional view of a part of an embodiment of the connecting piece remaining removal device of the driving machine of the present invention. 7 is a perspective view seen from the upper left side of FIG. 6, FIG. 8 is an explanatory diagram of the cutter operation of FIG. 7, and FIG. 9 is a connecting piece remaining removal device of the driving machine of the present invention. FIG. 6 is a side view of another embodiment in the same state as FIG. 6; 1... Connecting piece, 2... Stop, 3... Switch, 4
...Main body, 5...Piston, 6...Injection port, 9.
...Remainder, 10...Opening, 11...Magazine, 1
2...Cutter, 14...Return spring. Name of patent applicant Hitachi Koki Co., Ltd. ' tZ ""-1

Claims (1)

[Claims] 1. A driving part formed in the main body so as to be driven by a driving source to drive the stopper, a switch attached to the main body that drives the ringing part, and a connecting piece. A magazine that stores a fastener assembly in which a number of the above-mentioned fasteners are connected, an ejection port formed at one end of the magazine from which the above-mentioned fasteners are ejected, and a connecting piece on the ejection port side that is used for the same purpose. Only the driving means for next feeding and the remaining portion of the connecting piece after the stopper is driven in continues to feed the remaining portion. J-, the recording opening 91 is temporarily opened at λt, and the rear opening is accommodated in the external push part of the opening and the stopper is inserted.
A device for removing a remaining connecting piece of a driving machine, which is characterized by being provided with means for cutting off the remaining connecting piece that is discharged from the driving machine. 2. The means is formed of a cutter which is rotationally driven on the opening surface of the opening part and returns the remaining part to the old position before cutting by the tension of a spring after cutting the remaining part. The connecting piece remaining removal device for a driving machine according to item 1. 3. The means is reciprocally driven in conjunction with the operation of the switch in the axial direction of the injection port on the opening surface of the opening lJ portion. The first range of 11ν formed by the cutter
]”! Type 5 connection piece remaining removal device.