JPH1029170A - Tacking machine - Google Patents

Abstract

(57) [Summary] [Problem] To develop a tacking machine by combining a mechanism for continuously feeding tacks into a launch hole, a mechanism for supporting the tacks in the launch port, and a mechanism for driving a tack with a hammer. . SOLUTION: As means for continuously feeding the tacks to a firing port, two methods are provided: a method using a tack bar and a push-up table, and a method using a tack strip and paper feeding. In addition, four means are provided for properly maintaining the position of the stud in the firing opening. The first was to provide a support plate with perforations through which a magnetized hammer was inserted in the launch hole. Secondly, the support plate was abolished by adopting improved studs. Thirdly, the tack bar and support plate were eliminated by using a tack band and incorporating a paper feed mechanism. Fourth, the hammer is divided into a tip and a main body, and by connecting them with a spring, the tip can have the function of a support plate. By the means as described above, the development of the driving machine has become possible. We also provided three safety stoppers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rivet driving machine (gun tucker) capable of continuously driving rivets (such as a staple gun tucker) by the resilience of a spring.

[0002]

2. Description of the Related Art First of all, as an idea, see "
No. 171076. " Referring to FIG. 21, there is an excellent idea in using the elasticity of the spring, but there are some problems. First, there is a problem in that the mechanism for feeding the studs is complicated and that gravity is used. Due to the complicated mechanism of vibrating the studs supplied to the upper accommodation room (container) separately, the studs must be tied up and sent into the firing opening. Therefore, when the driving of the tack is insufficient, the user has to shake the tack driving machine to feed.
And as the tacks fall one by one from the top down and are fed into the launch hole, if the tacking machine is laid down, turned upside down, or the launch port is turned up or down, the tack is no longer sent into the launch port I can not put it. In addition, although a magnet is embedded in front of the crimping rod (striking iron), the crimping rod moves back and forth, so with this alone it will always reliably catch the studs falling by gravity in the firing port, pull it in and hold the correct posture Not always.

[0003] Next, there is a "thumbtack pusher of Japanese Utility Model Laid-open No. 57-23980". Referring to FIG. 22, the present invention employs a form in which an upper rod (hand lever) is pushed by hand and a stud is pushed in like a tabletop stapler or a tabletop drill. Therefore, it has to be said that this handles a thumbtack which is often driven into a wall or the like, and has a disadvantageous form as a device operated with one hand. Also, there is a problem in the mechanism for holding the tacks sent by the thumbtack guides in the thumbtack pushing holes. That is, a magnet for receiving the tack is provided on the side of the thumbtack push-in hole opposite to the side of the mouth of the guide that feeds the tack. Thus, the stud must fly horizontally from the guide mouth to the opposite wall while maintaining its posture, and this is not always successful. According to the drawing, since the center of the magnet is provided slightly below the opening of the guide, the stud is always drawn slightly below by the action of the magnetic field, and is inclined and set in the pushpin pushing hole. Later in the description of the invention, it is stated that a disk-shaped magnet may be embedded on the lower surface of the push-in fitting without attaching the magnet to the side surface. Although the grounds for this proposal are not written, it may be because the creator himself felt a problem with the idea of providing a magnet on the inner surface of the push hole. Let's take a look at the case where the magnet is buried under the indentation fitting. When the hand is released from the rod that moves the push fitting, that is, when the push fitting that moves up and down is located at the uppermost position, the lower surface of the push fitting and the mouth of the thumbtack guide must be completely continuous. . As long as this condition is satisfied, the studs sent out from the mouth of the guide will slide into the lower surface of the push-in fitting as it is, and will be able to be stuck in the correct posture. Therefore, when the operator raises the rod to the uppermost position, it is possible to give a chance that the stud is set in the thumbtack push-in port by keeping it slightly still.
However, what about the case where the resilient force of the spring is used instead of the method of moving the rod by hand and moving the push-in fitting up and down?
In this case, it is more appropriate to say that the push-in metal fitting is a hammer. Therefore, let us consider a case where a magnet is attached to this push-in fitting, that is, the front part of the hammer. In this case, the hammer front has two roles at the same time. One of the functions is to receive the thumbtack sent from the mouth of the thumbtack guide in the firing hole and to properly support the position of the thumbtack. To do so, the studs must pop out of the front of the hammer at the position in contact with the mouth of the guide and wait for it to stick in the correct position. It is not permissible to move further back even slightly from that position. This is because the next stud will enter the firing hole if it retreats. Another role is to drive the tack out of the launch hole. Looking at the movement of the hammer, it first retreats and stores the spring resilience of the spring.
The hammer retreats until the metal fitting that pulls it comes off, and at the moment it comes off, it is strongly driven forward by the resilience of the spring.
At this time, the studs are driven simultaneously. And this movement is continuous. That is, the next moment the retreat ends, the hammer is flipped forward. Thus, at a small moment before the hammer has retreated and entered the wrapping movement, the tack must successfully slide into the front of the hammer and stick accurately. It is actually difficult to reliably achieve this exquisite timing.

[0004]

After the role of supporting the rivet in the firing hole is separated from the hammer or the hammer body, and while the hammer retreats, the rivet is reliably fed into the firing hole to maintain a correct posture. , To provide a mechanism that can be used to hammer in with a hammer that is moving forward again.

[0005]

The means can be considered in four ways. One is to provide a plate, or support plate, for the conventional stud to maintain its position in the firing opening. This support plate has magnetism and can be connected directly to the mouth of the tackle (magazine) to attract and receive the tacks that are slid from the tackle in the launch port while maintaining the posture. It can be so. The support plate is provided with a hole or a gap through which a hammer passes. In this way, the hammer acts as a lid for the tackle during the forward and backward movements, and also serves to open and close the mouth of the tackle, and can take in the tacks one by one into the firing port and strike it out. Become like As a method to give a function to the support plate in addition to the magnet,
A method of holding down the tack with a spring is also conceivable. When a spring is used, the spring pressing the stud against the support plate from the front may be interlocked with the movement of the hammer to retreat immediately before striking the stud. Once the hammer that has retreated is returned, the spring of the presser is opened to the left and right, and the path of the tack can be opened.

A second measure is to use improved studs. The improved stud that can be used herein refers to a stud in which the basic shape of the stud head is cylindrical as a whole.
In the case of a conventional stud, the head is thin and disk-shaped, so that if the user stands on the head so that the needle part is horizontal, it becomes unstable. The difference between a disk and a cylinder is that there is a certain width in the part corresponding to the height of the cylinder, that is, in the barrel part when compared to a barrel. This constant radiation allows the stud to stably stand on the head even when the needle part is horizontal. In other words, there is no need to provide a special mechanism for maintaining the position of the tack in the launcher of the tacking machine. Therefore, a relatively simple structure of the driving tool can be developed. Furthermore, if the radius of the circle of the cylinder of the tack head is reduced, that is, if the head is slender, the number of tacks in the tack bar can be increased as compared with the conventional tack.

A third means is to attach and attach a tack to a belt-like cardboard or a plastic plate and use this as a tack belt (tack belt). The tack strip can have the function of a tack bar and the function of supporting the tack in the launch hole. In this case, a mechanism for feeding out this tack band, that is, a paper feed is provided in the tacking machine without using the push-up table.

A fourth means is to use a tack bar but not to use a support plate, that is, to provide a tip of a hammer with the same function as the support plate instead of the support plate. For this reason, the hammer tip and the hammer main body are separated from each other, the tip has magnetism, and these are connected by a tension spring so that they seem to be in close contact. First, the entire hammer retreats, and the rivet is sent from the rivet store into the firing port at the moment when the tip just passes through the rivet supply port. At this time, a stop step is provided in the passage of the hammer so that only the tip end can be stopped there, and a rivet is slid into the firing hole at the front surface of the tip end so as to be received. During that time, the hammer main body is connected by a tension spring, but separates from the tip and continues to retreat. Then, the main body portion and the front end portion, which change their course again and move forward, are united to strike a stud together. With this configuration, the hammer can be provided with a stud supporting function without providing a support plate, and the stud can be effectively hit with good timing.

[0009]

FIG. 1 shows a tacking machine. This mechanism is a mechanism in which the hammer 1 is moved by the force of the spring 9 and the conventional stud 3 sent from the stud holder 2 is driven more strongly than the firing port 4. The tack bar 2 mentioned here is a case of a tubular tack having a groove for guiding a large number of tacks and arranging them in a row as shown in FIG. In this case, a groove 41 for inserting the push-up table 12 and passing the same is opened in the bottom and side surfaces. When the lifting table 12 is passed through the groove 41, the lifting table 1
2 pushes the studs in the stud storehouse upwards and feeds the studs into the firing opening. The conventional hammer 3 is put in the tack bar 2, connected and set to the firing port, the grip 5 and the lever 6 are simultaneously gripped, and the lever 6 is pressed strongly, whereby the hammer 1 is pulled backward. A tack comes into launch port 4. In FIG. 1, when the hammer 1 falls back a certain distance, the tip metal 7 of the lever comes out of the hole 8 of the hammer, returns to the original position with the force of the spring 9 attached to the hammer, and the tack is strongly pushed out of the firing port 4. It is done. Lever 6 is spring 10
, The operation can be performed continuously. At that time, the metal fitting 7 of the lever is raised again by the spring 11 and returns to the hole 8 of the hammer.

In FIG. 1, when the hammer 1 retreats, the studs contained in the stud holder 2 are pushed up by the push-up stand 12 and sent to the firing port 4. The function of the lifting table 12 is generated by pulling the wire 13 by a spring mechanism. The reason why the mainspring mechanism is adopted is that the tack bar 2 is assumed to be long. When the tack bar 2 is relatively short, a spring device may be used instead of the wire.

FIG. 4 shows the support plate 14 for the studs in the discharge port and the magnet 1.
FIG. 5 is a view of a tip portion of a hammer 1 and 5. The support plate 14, the magnet 15, and the hammer 1 are arranged as shown in FIG. The conventional stud 3 is divided into a disk-shaped head 16 and a stud needle portion 17 as shown in FIG.

Normally, as shown in FIG. 1, the hammer 1 presses the rivet in the tack bar to prevent it from entering the firing hole. However, when the lever 6 is pushed, the hammer 1 retreats and its tip is supported. When descending from the plate 14, the uppermost tack in the tack store is pushed up as shown in FIG. 5, and slides into the firing opening. At this time, the conventional stud 3 slides up with its disk-shaped head 16 adhered to the support plate 14. The studs that have risen into the firing opening are firmly attracted by the magnetic force exerted on the support plate 14, and the posture is maintained. Accordingly, the rivet needle portion 17 can maintain the correct position with its tip directed toward the outside of the firing hole, and can wait for the hammer 1 that has fallen backward to return again and hit the disc-shaped head 16 of the rivet.

The need for the special mechanism in the firing opening as described above originates from the shape of the conventional stud. Rather than being constrained by the shape of a conventional stud, a stitcher having a relatively simple structure can be developed by improving the stud itself.

FIG. 7 shows an improved stud 18 having a columnar shape in which the length of a portion corresponding to the height of the disk-shaped head 16 of the conventional stud 3 is increased. By increasing this height, the tack can be held in its own position by its cylindrical head 19 without the help of the support plate 14 in the firing opening.

FIG. 8 further shows the cylindrical head 1 of the improved stud 18.
9 is an improved stud 20 in which the diameter of the circle 9 is reduced. In this way, the number of tacks in the tack bar can be increased even in a tack bar having a fixed length. In the improved stud 20 shown in FIG. 8, a groove 21 is provided on the side surface of the cylindrical head having an increased length, that is, the curved surface. This groove 21 can be used as a clue when the stud is pulled out from the wall as shown in FIG.

Such improvement of the tack itself makes it possible to develop and manufacture a tacking machine more easily than using a conventional tack as it is. That is, it is not necessary to provide the support plate 14 in the firing opening, and a tacking machine can be developed only by preparing a tack bar corresponding to the shape of the improved stud 18 or the improved stud 20.

In order to continuously drive the tacks without using the tack stock 2, it is sufficient that the tacks can be connected in advance. Therefore, here, we will use a strip of thick paper. As shown in FIG. 10, a band plate 22 having a hole in which the disk-shaped head portions 16 of the studs are arranged in thick paper is prepared. As shown in FIG. 11, an extremely thin aluminum foil 2 having a glue, ie, an adhesive material 23 on one side of this plate 2
4 or paste a vinyl sheet. This thin film has a function that the hammer 1 can be easily broken when the rivet is driven and that the rivet does not fall off the strip 22. Then, as shown in FIG. 12, the disc-shaped head 16 of the stud is inserted into the opposite side where the hole is opened.
In this way, as shown in FIG.
(Tack belt) can be said. Both edges of the belt are provided with cuts or depressions to facilitate paper feeding. Then, a paper feeding function is added to the tacking machine as shown in FIG. That is, the L-shaped lever 26 moves in conjunction with the lever 6 to move the pawl 27 for paper feeding up and down, so that the tack strip 25 can be sent upward. The entrance and the exit of the tack strip 25 for that purpose are provided in the tacking machine. When the lever 6 of the rivet driving machine is pressed, the hammer 1 retreats as shown in FIG. 15, and the next rivet is fed into the firing port by paper feed. At this time, the play of the connecting rod 28 of the lever 6 and the lever 26 causes the hammer 1 to retreat behind the tack strip 25, and then the paper feed claw 27 starts to move. Then, after the next tack is fed into the firing hole by the paper feed claw 27, the hammer 1 returns and punches the tack with the thin film of the tack strip 25. In the launch hole, the tack is held in the correct position by the force of the cardboard of the tack strip 25, and the hammer 1 can return and pierce the hole in the backing sheet to wait for the tack to be set.

As described above, it is not appropriate for the moving hammer to have a role of supporting the studs in the firing port, and it is better to provide a supporting plate and separate the hammer from the hammer. However, it is not impossible for the hammer to dare to play the role of this support plate. As shown in FIG. 16, the hammer is separated into a tip portion 29 and a main body portion 30, and a magnet 31 is attached to the tip portion 29 to provide a stud supporting function. Above is a hammer that can be extended while being a single hammer. First, the hammer main body 30 interlocked with the lever 6 is pulled backward, and the entire hammer retreats. The hammer tip 29 is stopped when its rear end reaches the stop step 33, and the front face of the tip 29 waits for the studs to come out of the stud holder 2, and receives and supports the studs. In the meantime, the hammer main body 30 continues to retreat as it is, and after the tack is correctly set in the firing hole, changes the course again and moves forward. And while the tip part 29 and the main body part 30 are united,
The rivet stuck to the tip portion 29 is strongly hit. In this way, it is possible to give the hammer a supporting function and to abolish the supporting plate 14.

It is believed that the convenience of using this tacking machine also involves danger. It cannot be said that there is no case of intentionally or accidentally hitting a person. Therefore, a safety mechanism is indispensable for this kind of equipment. The first possibility is to attach a stud stopper to the firing opening 4. As shown in FIG.
By attaching, the studs can be prevented from jumping out. Also, as shown in FIG.
By pressing, the rivet can be driven into the wall diagonally, and when removing the rivet due to the gap formed at that time, the tip of the rivet can be easily set.
However, it is conceivable that the stopper 34 may be intentionally bent or removed to use a tacking machine. FIG. 19 shows that a spring-type stopper 35 is attached to the side surface inside the firing port. In this way, it is possible to increase the safety by making it inconspicuous from the outside and making it difficult to make changes.

When it is desired to use a safer stopper or when using an improved stud, a stopper 36 as shown in FIG. When the firing port 4 is pressed against the wall, the safety rod 37 is pressed and retreated, and the stopper 36 that is inclined obliquely is pressed down at its rear end to be horizontal. As a result, the front end of the stopper 36 is disengaged from the hammer recess 38, and the hammer 1 is free to move. When the firing port 4 is separated from the wall, the safety rod 3
7 returns to its original state, and again the stopper 36 is inclined obliquely by the spring 40 so that its front end falls into the recess 38 of the hammer. As long as you do not press the firing port 4 against the wall like this
Safety can be achieved by preventing the hammer 1 from being moved.

[0021]

As described above, a gun tucker for a stapler has been developed for a long time, but it has been difficult to develop and commercialize a tack driving machine (gun tucker) for a stap. The biggest reason for this is that the conventional studs have a unique form like a needle attached to an umbrella. However, if this difficulty can be overcome and a tacking machine can be developed, the work of attaching and posting with tacks can be significantly improved, and speeding up can be achieved. The first effect of the invention is that a method that does not hurt the hand with a separate stud needle, a stud bar or a stud band as a means of arranging and arranging this troublesome stud in a lump This is the effect of using. The use of a tack bar makes it possible to continuously feed tacks into the launcher of the tacking machine. In addition, when refilling the tacks, the tacks are handled for each tack bar, so that the number of tacks can be easily grasped without counting the tacks one by one. Next, in the prior art, after the rivet is fed into the launcher of the tacking machine by the tack store, how to make the rivet stand in the launcher before hitting with a hammer, that is, at the side of the disk-shaped head of the tack. It was unsolved how to stand and hold the posture correctly without falling. Here, this problem could be solved by providing four means. As a result, the stud needle always maintains the correct orientation in the launch hole, and the stud head can reliably receive a strong hammering hammer.

[Brief description of the drawings]

FIG. 1 is a mechanism diagram of a tacking machine.

FIG. 2 is a plan view and a bottom view of a tack storehouse.

FIG. 3 is an internal view of the driving tool in a state where the hammer has retreated and the tack has entered the firing hole.

FIG. 4 is a schematic view of a support plate, a magnet, and a tip of a hammer.

FIG. 5 is a layout diagram of a support plate and a magnet inside the driving tool.

FIG. 6 is an illustration of a conventional stud.

FIG. 7 is a view of an improved stud having a cylindrical shape with an increased thickness of a disk-shaped head.

FIG. 8 is a view of an improved stud having a groove on a side surface with a reduced diameter of the disk of the improved stud of FIG. 7;

FIG. 9 is a view of an improved stud with a groove and a stud remover.

FIG. 10 is a diagram of a cardboard strip with holes.

FIG. 11 is a view of a strip to which an aluminum foil is pasted.

FIG. 12 is a side view of the band plate in which tacks are inserted into holes.

FIG. 13 is a diagram of a tack band.

FIG. 14 is a paper feed mechanism diagram for feeding a rivet band of the rivet driving machine.

FIG. 15 is an internal view of the tacking machine in which the hammer has retreated and the next tack has been sent together with a tack band into the firing opening.

FIG. 16 is a cross-sectional view of the hammer in the launch port, which is separated into a hammer tip and a hammer main body.

FIG. 17 is a longitudinal sectional view of a stopper attached to the launch port.

FIG. 18 is a view showing the use of the ejection port stopper.

FIG. 19 is a vertical cross-sectional view of a spring-type stopper attached to the inner surface of the outlet.

FIG. 20 is a mechanism diagram of a hammer stopper.

FIG. 21 is a prior art thumbtack crimping / removing machine (open to the public)
It is a partial sectional view in (Showa 59-171076).

FIG. 22 shows a conventional pushpin driving machine (publicly used in Showa 57)
23980) is a (a) longitudinal sectional view and (b) a transverse sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hammer 2 Tack storehouse 3 Conventional stud 4 Firing port 5 Grip 6 Lever 7 Lever tip metal fittings 8 Hammer hole 9 Spring 10 Spring 11 Spring 12 Push-up stand 13 Wire 14 Support plate 15 Magnet 16 Disk-shaped head 17 Tack needle part 18 Improved tack 19 Cylindrical head 20 Improved tack 21 Groove 22 Strip plate 23 Adhesive material 24 Aluminum foil 25 Tack strip 26 Lever 27 Paper feed claw 28 Connecting rod 29 Hammering iron tip 30 Hammering iron body 31 Magnet 32 Tension spring 33 Stopping step 34 Stopper 35 Stopper 36 Stopper 37 Safety rod 38 Depression of hammer 39 Spring of safety rod 40 Spring 41 Groove for push-up table

Claims (5)

[Claims] 1. A tack holder, which has a T-shaped groove having a T-shaped cross section that matches the shape of the tack and further has a groove for passing the push-up table, is attached to the firing port from the tack storage opening. , A support plate for preventing the rivet sent from the rivet store from falling in the firing opening, and a mechanism for continuously driving the rivet through a hole formed in the support plate by a hammer using spring elasticity of a spring. A tacking machine characterized by the following. 2. An improved stud, that is, an improved stud in which the thickness of the disk-shaped head (16) of the conventional stud (3) is increased to form a cylindrical head (19) to prevent falling in the firing opening. (1
8. A tacking machine according to claim 1, wherein the support plate in the firing opening is eliminated by using 8) or an improved stud. 3. A rivet band in which holes are made at regular intervals in a belt-shaped cardboard or plastic plate, thin foil is stuck on one side, and a rivet head is inserted into the hole from the other side to connect the rivets. By using the rivet holder and the support plate in the pierced hole of the rivet, the tacking machine is provided so that the rivet band receiving port is connected to the blast port, and furthermore, it is interlocked with the hammer (1) and the lever (6). 2. The tacking machine according to claim 1, further comprising a paper feed mechanism for feeding the rivet band into the firing opening at regular intervals. 4. When the hammering iron tip portion and the hammering iron main body having magnetism are separated from each other instead of removing the support plate of the stud in the firing opening, and both are apparently joined by a tension spring, and the hammering iron is retracted. In addition, a stop step is provided in the path of the hammer to stop when the tip of the hammer comes to just behind the supply port of the stud in the firing port, and the hammer main body continues to retreat as it is, while separating slightly from the tip The rivet slides along the front surface of the hammer tip into the launch hole, is received and supported by the tip, and when the hammer main body changes its course and returns again, the tip and the main body unite. 2. The tacking machine according to claim 1, further comprising a mechanism for striking the disk-shaped head of the tack together. 5. The tacking machine according to claim 1, wherein a stopper is provided in the launch port, or a safety rod and a stopper for a hammer are provided in conjunction with the safety rod.