JPS5988268A - Nail encasing mechanism of nail driver - 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 needle storage device for a portable power nailer that continuously drives a large number of connected nails using air or electricity as a power source.

Nails for portable power nailers are roughly divided into the following two types.

One type is a nail made of a number of connected nails wound into a coil, as shown in Figure 1, and -d as shown in Figure 2.
This is a nail in which a large number of nails 2 are linearly connected to a connecting piece 1. The nailing machines that drive these nails also have different nail storage areas depending on whether you are driving the former or the latter type of nail.
It is inevitably divided into two types.

The present invention is an improvement on the nail gun for driving straight connecting nails (hereinafter referred to as straight connecting nails 3) shown in FIG. A conventional example of this type of nailing machine is shown in Fig. 3. In the magazine 4 for storing nails of this type of nail gun, there is a nail feeder 5 for feeding the nails, which is always pushed toward the injection port 6 through which the nails are fired by a spring or the like not shown in the figure. . When the straight connecting nail 3 is stored in the magazine, the fourth
As shown in the figure, the nail feeder 5 is straight connected.
The entire nail is constantly pushed toward the injection port 6 from the rear of the nail 3.

Therefore, when storing nails in this type of nailer, pull the nail feeder 5 backward by hand, and then
into the magazine 4, then move the nail feeder 5 forward (
It was necessary to operate the nail feeder 5 to return it to the injection port 6 side).

SUMMARY OF THE INVENTION The present invention aims to improve the drawbacks of the prior art, which requires the operation of a nail feeder when storing nails in a magazine, and to realize a nailing machine with good operability.

The present invention provides a nail feeding section 7 between the injection port 6 and the magazine 4 for feeding the nails one by one to the injection port 6, so that the straight connected nails 3 can be simply inserted from the rear of the magazine 4. (See Figure 5)
.

An embodiment of the present invention is shown in FIGS. 5 to 9. FIG. 6 shows the state in which the nails are stored in FIG. 5. 8 and 9 are sectional views taken along the line AA of the nail feeding section 7- in FIG. 5, and FIG. 7 is a sectional view taken along the line BB of the magazine 4.

As shown in FIG. 9, the nail feed section 7 provided adjacent to the injection port 6 includes a feed claw 8 for feeding the nails one by one into the injection port 6, and a spring that constantly presses the feed claw toward the needle side. B9
, a feed piston 10 for moving the feed claw 8 backward (towards the magazine 4), a feed spring 11 for moving the feed claw 8 forward together with the nail 2 (toward the injection port 6 side). It is located on one side with reference to the alignment direction axis X-X of No. 2. On the opposite side, tail cover 1
There is a cover part 14 which can be opened and closed in the Y-Y direction about a hinge 13 provided at the top 2, and is normally kept closed at the position shown in FIG.

Inside this, there is a nail stopper 15 that holds the nail 2 so that the nail 2 does not move back after it has been advanced, and a spring A16 that constantly lights up the nail 2.
It is placed pushed to the side.

A magazine 4 is arranged behind the nail feeding section 7 in a straight line about the XX axis, and one end of the magazine 4 is fixed to the end of the nail feeding section with a screw 17. As shown in FIG. 7, the cross-sectional shape of the magazine includes a nail head guide portion 19 that guides the nail head 18.
and a nail guide part 21 that guides the nail body part 2o, and this shape is continuous from the front end to the rear end of the magazine 4, and is open at both ends. Also, the length t of the nail guide portion 19
As shown in FIG. 5, it is short in most areas, and gradually changes to become longer at the side of the joint with the nail feeding part 7. The operation of the present invention configured as above will be described below. When the nails stored in the magazine 4 and the nail feeding section 7 run out, a new straight connected nail 3 is inserted through the opening at the rear end 22 of the magazine, with the nail head 18 passing through the nail head guide section 19 and the nail body 20 passing through the nail guide section. 21 and push it forward by hand. As shown in FIG. 8, when the leading edge of the pushed straight connecting nail 3 reaches the slope A24 behind the nail A23 of the nail stopper 15, due to the effect of the slope and the force being pressed by the hand from behind, Nail stopper 15 overcomes the force of spring A16 and rotates toward spring A, and nail 2 moves further forward. Next, when the leading edge of the nail reaches the slope B25 of the feed claw 8, the feed claw rotates 8 times by the same action as the nail stopper 15, and the nail advances further and comes to an end at the injection port 6. Stop at 1, and the work of storing the straight connecting nail 3 is completed (states shown in Figs. 6 and 9). Next switch 2
When 6 is pulled, the nail in the ejection port is ejected in a known manner. At the same time, as shown in FIGS. 8 and 9, compressed air is sent to the back surface 27 of the feed piston 10, and the feed piston 1o is retracted by about one pitch of the connected nail. The freely connected feed pawl 8 also rotates in the C direction due to the action of the slope B25 and retreats by approximately 1 pinch of the nail, catching the next nail with its right-angled surface B2B.Nail stopper 1s) i! '1l
Even if the feed claw 8 retreats due to the action of llrtA2'9,
The straight connecting nail 3 does not move back and maintains its position. Next, when the switch 26 is turned off, the compressed air from the back surface 27 is discharged, and the feed piston 1o moves forward by the action of the feed spring 11. At the same time, the feed claw 8 moves forward while hooking the next nail with its right angle surface Bj8, and feeds the most advanced nail into the injection port 6. In addition, the button after being stored is 1
The +1 & mechanism for automatically feeding one book at a time is the same as the nail feeding mechanism normally used in a nail gun of the type that drives coiled nails, as shown in FIG. 1, and is well known.

According to the present invention, when storing the needles, it is sufficient to simply insert the straight connecting nail from the rear of the magazine without manually operating the nail feeder as in the conventional case. Therefore, the work of storing nails can be done extremely easily and in a short time. Also, since the nailer main body and nail feeder 7 are exactly the same as the nailer that drives coiled nails shown in FIG.
An additional effect is that coiled nails can also be driven by removing the screwdriver and replacing it with a needle storage magazine (not shown as it is very well known) of a nailer for driving coiled nails.

[Brief explanation of drawings]

Figure 1 is a perspective view of a coiled nail, Figure 2 is a perspective view of a straight connecting nail, Figure 3 is a detailed view of a conventional nail gun that drives straight connecting nails, and Figure 4 is Figure 3. FIG. 2 is a partially vertical side view showing a magazine section of the machine in which nails are stored. Figures 5 to 9 show embodiments of the present invention, with Figure 5 being a front view of the external appearance of the nail gun, and Figure 6 showing the state in which nails are stored, with the magazine section in Figure 5 cut away. FIG. Figure 7 is the BlJJLi side view of Figure 6, Figure 8, Figure 9 V
i The section taken along line AA in Figure 5 is taken with the nail stored, and
FIG. 3 is a cross-sectional plan view showing the cover section in a closed state. In the figure, 1 is a connecting piece, 2 is a nail, 3 is a straight connecting nail, 4 is a magazine, 5-piece nail feeder, 6 is an injection port, 7 is a nail feed section, 8 is a feed pawl, 9 is a sublime/g BX 10 is a feed biston, 11 is a feed spring, 12 is a tail cover, 13 is a hinojibi/, 14 is a part of a cover, 15v1 nail stopper, 16 is a Subrinog A117 is a screw, 18
Id'Ff Head, 19 rMTyTl (To part, 20 f
dfT body g (i, 21 is the nail guide part, 22 is the rear end of the magazine, 23 is the claw A124, the slope A125 is the slope B126 is the switch, 27 is the back, 28 is the right angle surface B129 is the right angle surface A, '30 is the bottle) Yes. Name of patent applicant: Hitachi Koki Co., Ltd. (Figure Akebono・20 +50

Claims (1)

[Claims] In a power-powered nailer that uses compressed air, electricity, etc. as a power source to continuously hit many buttons connected in a straight line, the straight connected side stored in the magazine is automatically fired every time a phantom is fired. A magazine is removably fixed to the rear end of the button feeding part, and a button head part 19 is attached to the magazine.
A nail guide part 21 is provided extending from the rear end of the magazine to the front end, and the lower side thereof is open.The front end and the rear end of the magazine are open with the same cross-sectional shape as the middle part of the magazine, and can be used for round, round, straight connecting nails. can be inserted from the rear end of the magazine, and when the straight connecting nail is pushed as it is, the leading edge of the straight connecting nail can be pushed until it reaches the injection port 6.