JPH0521335Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention is applicable to a staple taker, such as a staple air taker, which has a magazine case loaded with a roll of continuous needle rod rows in which flat straight needles are fixed side by side in parallel. It is about improvement.

(Prior Art) The use of a downward U-shaped continuous needle rod in a staple tatcher allows for a small number of staples to be loaded due to its shape. In order to solve this problem, it is possible to arrange flat straight needles side by side and load a continuous row of needle rods in the form of a roll on one side of the central part of the row of needle rods with synthetic resin thin film tape attached to both the front and back sides. desirable.

Here, in order to efficiently and continuously drive staples, it is necessary to connect a large number of staples, to make it easy to attach and detach the magazine unit of those staples, and to maintain cushioning properties when staple jamming occurs. It is necessary to aim for this.

In view of the above, the present applicant proposed in Utility Model Application No. 62-42981 a feeding mechanism for sequentially feeding each staple to a driving position, and a pair of feeding mechanisms in which guide portions (guide grooves) are formed on opposing surfaces of the respective staples. A device body having a side support, a slide guide set in this guide portion, a rail through which continuous staples fed out from a magazine case attached to an end opposite to the driving position pass, and a rail formed at the driving position. A device for attaching and detaching a magazine unit in a staple tacker comprising a magazine unit having a bending table has been disclosed.

Even with the above invention, there is still room for improvement in the structure and detachment structure of the magazine unit.

(Problems to be solved by this invention) This invention forms a magazine unit with a magazine case, a rail, and a feeding mechanism, makes it easy to attach and detach these magazine units, and solves the problem of staple jams and improves adjustment. The purpose is to facilitate.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a needle that is fixed to the rail, has a needle passage between it and the surface of the rail, and has a fitting groove in the upper surface. A slide body is formed over the entire length of the rail and has a stop at the end on the magazine case side, and a slide body is slidably accommodated in the fitting groove and is disposed between the stop and the slide body. A feed claw provided with an elastic body and biased so that its tip approaches the rail is rotatably attached to the bending table side, and a part of the feed mechanism is attached to the end on the magazine case side. a feed slide provided with an engaging piece that comes into contact with the feed piston, which is a part; and a cover that closes a predetermined portion of the feed slide excluding the engagement piece, and as the feed piston is driven in the direction of the staple driving position, the feed slide is moved by the biasing force of the elastic body. direction, the staple is fed by the feed pawl, and then, when the feed piston is driven in a direction opposite to the direction, the engagement piece interlocks with the feed piston, and the feed The slide provides a staple tacker that returns to its original position against the biasing force of the elastic body.

Hereinafter, the drawings showing the embodiments of the present invention will be described. FIG. 1 is a side view of a staple tacker, for example, a staple air tacker A. A magazine unit b is configured to be detachably attached to a device main body a which has a trigger air supply port 1 and a main air supply port 2 supplied from the outside. The device main body a has a feed piston 3 built into its lower part as an operating body for a needle feeding mechanism that is linked to the tucker operation. 4 is air chamber 5
This is an air passage connecting the feed piston 3 and the feed piston 3. Reference numeral 6 denotes a pair of left and right side supports fixed to the device main body a, which cover the outside of the feed piston 3 and protrude downward to provide a fitting cavity 7 for the magazine unit b in the lower part. On the inner wall of the side support 6, a guide portion 8 formed of a channel or other shape such as a concave groove is provided in the length direction along the lower edge thereof. The rail 9 of the magazine unit b has approximately the same width as the fitting cavity 7 in the side support 6, and a needle feeding mechanism is formed at the tip that fits into the fitting cavity 7, and a magazine case 10 is formed at the rear. stick. A recessed needle passage 9a is provided in the center of the upper surface of the rail 9 and has a depth that completely accommodates a flat straight needle from the rear to the tip. A flanged slide guide 11 that projects outward is provided. By aligning the slide guide 11 with the guide portion 8, the magazine unit b can be smoothly attached to and detached from the device body a. Reference numeral 12 denotes a stop finger whose rear end is fixed to the upper surface of the tip of the slide guide 11, whose bent tip elastically contacts the staple, and which enters between adjacent staples to prevent the needle from returning. A slide body 13 is fixed to the upper surface of the slide guide 11 and has a lower portion 13a protruding toward the needle passage 9a to ensure the depth of the needle passage 9a. On the upper surface of the slide body 13, a fitting groove 14 is provided in the center and occupies the entire length, and a feed slide 15 is slidably fitted into the fitting groove 14. A cover 27 is fixed to the upper surface of the slide body 13 to close the fitting groove 14 and close the feed slide 1.
I support 5. The feed slide 15 is provided with a cut groove 15a in the center of the tip surface to feed the staple feed claw 1.
6 is fixed with a shaft, and an engagement piece 17 is erected at the rear end, and a blind hole 18 is provided in the rear end surface, into which a spring 19 is inserted. Such feed slide 1
5 into the fitting groove 14, and slide the slide body 13.
The spring 1 is attached to a stop 20 fixed to the rear surface.
9. Bring the rear end into contact and urge it forward. Reference numeral 21 denotes a feed pawl presser spring which is fixed in the notched groove 15a and pushes up the rear end of the feed pawl 16 to bring its tip into elastic contact with the staple. Feed slide 15 is engagement piece 1
7 is brought into contact with the piston rod 3a of the feed piston 3, and moves backward as the feed piston 3 moves backward, and when the feed piston 3 moves forward, moves forward by the biasing force of the spring 19 to feed out the staples. The magazine case 10 of the magazine unit has an opening/closing lid 10a removably pivoted to the side opening.
Open a supply port on the rail. Reference numeral 21 is a stop lever that bends the rod shape into a planar U-shape, and fixes the left and right ends 21a of the bifurcated ends 21a on both sides of the side support 6, and a bent center piece 21b.
21c is the rear end of the stop lever 21 and protrudes across the outside width of the bent central piece 21b to make it easier to grip. When the stop lever 21 is pushed down and removed from the stopper 22 using the tip 21a of the stop lever 21 as a fulcrum, the magazine unit b is unlocked from the device body a, and the magazine unit can be pulled out rearward. Therefore, to replenish staples, store a new rolled straight needle in a magazine case, pull it out onto the rail 9, push it in to the stop finger 12 of the rail 9, and then move the feed slide 15 back and forth to feed the staple. The stapler is inserted into the stop finger 12 and set at a normal position where two staples are sent out in front of the stop finger 12. At these times, if the stop finger 12 is not in the normal position, adjust it using the mounting screw of the stop finger 12. Incidentally, reference numeral 23 denotes a bending base portion of the staple, which is provided at the tip of the rail 9 so as to protrude by approximately the same width as one staple. As shown in FIG. 4, the staple tacker is normally supplied with main air and trigger air is also supplied from the trigger valve, and remains stationary even when the piston 26 is at the top dead center. Further, the staple feeding claw 16 is in the forward state. When the trigger air is stopped and exhausted, the head valve 24 opens and the piston 26 descends to drive the staple, and at the same time the next staple is bent and the feed pawl 16 retreats.

Next, when trigger air is supplied, the head valve 24 closes and the air inside the cylinder 25 is exhausted, and at the same time the chamber 5 outside the cylinder 25
The piston 26 rises due to the air inside, and the feed claw 1
6 moves forward by the force of the spring 19 and enters the normal state, and repeats the above to perform the tatsuka hit.

(Effects) As described above, in the present invention, the magazine unit can be easily attached to and detached from the main body of the device by inserting the slide guide into the groove of the side support. Moreover, since the magazine unit has the staple feeding mechanism integrally, it is easy to check and adjust the positional relationship between the staples placed on the rail and the feeding claw when replenishing staples, and it is also easy to maintain and adjust the staple feeding mechanism. Inspection is easy and the main work can be carried out safely. Also,
The stop lever is easy to use because it can easily lock and release the unit magazine from the device body simply by raising and lowering it.

[Brief explanation of drawings]

FIG. 1 is a side view, FIG. 2 is a perspective view, FIG. 3 is a partial sectional view, and FIG. 4 is a sectional view of main parts. a...Device body, b...Magazine unit, 3
...Feed piston, 6...Side support,
7... Fitting space, 8... Guide groove, 9... Staple rail, 10... Magazine case, 11
...Slide guide, 13...Slide body,
15...Feed slide, 16...Feed claw, 1
7... Engagement piece, 21... Stop lever, 22...
...Stotsupa.

Claims (1)

[Claims for Utility Model Registration] A device main body a having a feed piston 3 for sequentially feeding each staple to a driving position and a pair of side supports 6 having a guide portion 8 formed on their opposing surfaces, and this guide portion. 8, a rail 9 through which the continuous staples fed out from the magazine case 10 attached to the end opposite to the driving position pass, and a bending table 23 formed at the driving position. A staple tacker consisting of a magazine unit b, which is fixed to the rail 9, secures a needle passage 9a between the magazine unit b and the surface of the rail 9, and has a fitting groove 14 in the upper surface part along the longitudinal direction of the rail 9. The magazine case 10 is formed over the entire direction.
A slide body 13 is provided with a stopper 20 at its side end, and is slidably accommodated in this fitting groove 14, with an elastic body 19 provided between it and the stopper 20, and whose tip is connected to the rail 9. A feed pawl 16 biased toward the feed piston 3 is rotatably attached to the end on the bending table 23 side, and a locking member that comes into contact with the feed piston 3 is attached on the end on the magazine case 10 side. a feed slide 15 provided with a mating piece 17; and the engaging piece in this feed slide 15, which is attached to the slide body 13 and is configured to restrict rotational movement of the feed claw 16 based on the biasing force. and a cover 27 that closes a predetermined portion other than 17, and as the feed piston 3 is driven in the direction of the staple driving position, the feed slide 15 is moved by the biasing force of the elastic body 19. When the feed piston 3 is driven in the opposite direction, the engaging piece 17 is interlocked with the feed piston 3. , the feed slide 15 is connected to the elastic body 19
A staple tatker characterized in that it returns to its original position against the urging force of.