JPH0342016Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a crimping device used for attaching a caulking metal fitting to a caulking material such as a button, and more specifically, a caulking device used to attach a caulking metal fitting to a material to be caulked such as a button. Regarding the crimping device.

Prior Art An example of the prior art of this type of crimping device is disclosed in Japanese Patent Publication No. 43-27161.
As shown in FIG. 4, a jig holder 340 is attached to the tip of an elevating shaft 310 that moves up and down in conjunction with a hand press handle (none of which is shown) so as to be rotatable around a horizontal support shaft 330. On the other hand, one end is the lower end of the lifting shaft 310, and the other end is the lower end of the lifting shaft 310.
The rotor 3 is rotatably attached to the front part of the rotor 3.
The jig 39 has a basic structure in which the jig holder 340 is biased toward the lifting shaft 310 by a tension spring 360 that is latched and connected to the jig 39 attached to the tip of the jig holder 340.
The caulking metal fitting 500 held at zero is caulked to a button (none of which is shown) placed on a pedestal provided below the caulking metal fitting 500.

341, 341, the jig holder 340 is connected to the lifting shaft 3
10, and when the jig 390 is in the forward position as shown by the solid line in FIG. , fourthly, as shown by the two-dot chain line, the jig 3
If 90 is located downward, the locking claw 34 on the proximal end side
1 is locked on the rear side of the lifting shaft 310, and together with the spring force of the tension spring 360, when the jig holder 340 is at the husband's position, the lifting shaft 3
It is set to be fixed at 10. Note that the rotation of the jig holder 340, that is, the fixing of the jig holder 340 to the elevating shaft 310 is performed by the operator.

Attachment of buttons to fabric (not shown) using such a crimping device is performed as follows. That is,
Set the caulking metal fitting 500 on the jig 390 at the front position, set the button on the pedestal, and
This is done by inserting a piece of fabric between the caulking metal fitting 500 and the button, and in this state lowering the lifting shaft 310 to caulk the caulking metal fitting 500 onto the button (hereinafter, this attachment work will be referred to as button caulking).

Problems to be Solved by the Invention However, in the case of the above-mentioned conventional example, the operator manually moves the jig holder 340, that is, the jig 390, between the forward position and the downward position for each button crimping. Since it is necessary to rotate, there is a problem in that work efficiency is significantly reduced.

In addition, there is a risk that the spring pressure, that is, the elastic modulus, of the tension spring 360 will deteriorate over time, resulting in a problem that the jig holder 340 cannot be fixed in the correct position of the elevating shaft 310, making it difficult to perform accurate caulking work. There is also the problem that it cannot be received well over a long period of time.

The present invention has been made to solve the problems of the prior art, and it is an object of the present invention to provide a caulking device that can perform caulking work efficiently and accurately over a long period of time.

Means for Solving the Problems The caulking device according to the present invention includes a frame equipped with a pedestal for receiving caulking fittings or materials to be caulked, and a lifting shaft that is guided in a guide tube provided on the frame so as to be able to rise and fall freely. , a jig holder attached to the tip of the lifting shaft so as to be rotatable around a horizontal axis; a jig connected to the tip of the jig holder to hold the caulking fitting or the material to be caulked; A detent piece is attached to the side surface of the guide tube and has a detent groove on the tip side, and the detent piece is connected to the jig holder and engages with the detent groove as the elevating shaft moves up and down. , a detachable rotation stopper pin, and the lifting shaft is set at a maximum raised position where the jig holder is in a horizontal position, and a maximum lowered position where the jig holder is in a vertical position and the caulking metal fitting is caulked to the caulking material. It is designed to be raised and lowered over a period of time.

Operation In appropriate cases, the jig holder, that is, the jig, rotates between the horizontal position and the vertical position in conjunction with the lifting and lowering of the lifting shaft. Further, since the rotation prevention pin engages with the rotation prevention groove, there is no possibility that the jig holder will rotate unexpectedly.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.
FIG. 1 is a perspective view showing the overall configuration of the caulking device according to the present invention, FIG. 2 is a partially cutaway front view of the main part, and FIG. 3 is a right side view.

The present device has a leg part 1 having a mounting table 2 at its upper end, and a frame 3 which is attached to the front part of the left and right center of the mounting table 2 and has a C-shape when viewed from the side.
The upper end of the frame 3 is connected to an elevating shaft 31 that is fitted into a guide tube 30 provided at a portion corresponding to the upper open end of the frame 3 so as to be able to slide vertically, and the lower end is connected to the leg portion 1. The main component is a connecting arm 4 which is rotatably connected in the vertical direction, and when a pedal 41 provided at the lower end of the connecting arm 4 is depressed with the foot, the elevating shaft 31 is lowered, as will be described later. The basic structure is that the button is swaged.

The leg portion 1 has left and right legs 10 and 11, and between these legs 10 and 11 is a support shaft 4 that rotatably supports the first arm 42 located below the connecting arm 4.
I have given you 3. Specifically, this support structure is rotatably fitted to the center of the support shaft 43 to support the bearing 44.
The structure is such that the first arm body 42 is supported.

The lower end of the first arm 42 is connected to the pedal 41, and the upper end is connected to the upper end of the lifting shaft 31 via a second arm 45 and a third arm 46. A connecting portion between the first arm body 42 and the second arm body 45, the second arm body 45
The connecting portion between the third arm 46 and the third arm 46 and the connecting portion between the third arm 46 and the lifting shaft 31 are rotatable. Thus, when the pedal 41 is depressed, the lifting shaft 3
1 is guided by the guide cylinder 30 and descends.

On the other hand, the upper end of a return spring 47 whose lower end is locked to the leg 10 is locked to a lower portion of the first arm 42 . The return spring 47 acts to return the pedal 41 to the upper depression starting position when the foot is removed from the pedal 41. This depressing start position is the maximum lifting position (third position) of the lifting shaft 31.
(see figure).

Next, the structure around the frame 3 will be explained.
The lower end of the lifting shaft 31 has a split structure, and in this split structure 32, a cylindrical jig holder 34 is rotatably supported by horizontal pins 33 extending left and right. Specifically, the base end of the jig holder 34 is provided with an engagement piece 34a that is inserted into the split structure 32, and the horizontal pin 33 is loosely inserted through a round hole 34b formed in the engagement piece 34a. It's getting old.

Threaded portions 33b and 33c having a smaller diameter than the pin portion 33a are formed at both left and right ends of the horizontal pin 33, and the right end threaded portion 33c is connected to the jig holder 34.
The left end threaded portion 33b is fastened to a positioning piece 36 fastened to the left side of the jig holder 34 using a nut 33d. Thus, by tightening the nut 33d, the jig holder 34 can be securely fixed at a predetermined position in the left-right direction with respect to the elevating shaft 31.

An arcuate guide surface 35a is provided at the base end of the descending guide piece 35, and an angled tracing piece 37 is attached to the right side surface of the frame 3. The lower piece 37a of the copying piece 37 is in contact with the lower surface of the guide tube 30, and the upper end of the tension spring 38 is fixedly connected to the upper end of the upper piece 37b. tension spring 3
The lower end of the jig holder 8 is latched and connected to the rear end surface of the jig holder 34. Note that the upper end of the tension spring 38 is connected to the frame 3.
It is also possible to lock and connect to.

The descending guide piece 35 is connected to the elevating shaft 3 as shown in FIG.
1, the portion of the guide surface 35a located on the tip side is in contact with the lower piece 37a of the copying piece 37. . From this state, when the pedal 41 is depressed and the elevator shaft 31 is lowered as described above, the tension spring 38 rotates the jig holder 34 downward, and the lowering guide piece 35 rotates accordingly.
The guide surface 35a comes into contact with the lower piece 37a sequentially from the distal end side to the proximal end side, thereby smoothly guiding the downward rotation of the jig holder 34.

A locking pin 1 is provided at the upper end of the positioning piece 36.
36 are connected. This locking pin 136 is for preventing the jig holder 34 from rotating in the opposite direction when the button is crimped. That is, when the lifting shaft 31 descends from the maximum raised position shown in FIG. It is adapted to engage with the groove 6b. Therefore, even if an external force is applied to the jig holder 34 in the longitudinal direction, for example, the jig holder 34 will not rotate unexpectedly, and its positioning in the longitudinal direction can be ensured. be able to do it.

A jig 39 made of a magnet is attached to the distal end surface of the jig holder 34. A jig 39 is attached. The jig 39 holds the caulking metal fitting 50 by suction, and a holding hole 39a for supporting the head of the caulking metal fitting 50 is provided in the center of the front end surface of the jig 39.

A pedestal 130 is provided in a portion corresponding to the lower opening end of the frame 3, and a receiving pedestal 131 for placing an eyelet-shaped button 51 is provided in a portion of the pedestal 130 located directly below the lifting shaft 31. It is installed.

Next, a case will be described in which button crimping is performed using the device of the present invention. Before use, that is, pedal 41
3, the lifting shaft 31 is at the maximum raised position shown in FIG. 3, and the jig holder 34 and the jig 3 are
9 is in a horizontal position, and the holding hole 39a of the jig 39 faces forward.

Next, the caulking metal fitting 50 is set on the jig 39 in this state from the front, and the button 51 is placed on the receiving base 131.
and set the fabric 52 between the jig 39 and the receiving table 131.

Next, the pedal 41 is depressed by the required amount, and the elevating shaft 3
Lower 1. Then, the jig holder 34 and the jig 39 will pass through the intermediate position shown in FIG. Button crimping will be performed.

The entire details of the illustrated embodiment are as described above.
The device of the present invention is not limited to the above embodiment, and various modifications are possible. That is, jig 3
9 is not limited to a magnet; for example, the head of the caulking metal fitting 50 may be fitted into the holding hole 39a, or the jig 39 may hold the button 51 and the caulking metal fitting 50 may be Receiving table 131
It may also take the form of being placed on.

It goes without saying that the types of the button 51 and the caulking metal fittings 50 are not limited to those shown in the drawings, and can be applied to a wide range of general caulking operations other than button caulking, such as riveting lap joints. .

Furthermore, there are various types of caulking devices other than the foot-operated type described above, such as hand press type, air drive type, motor drive type, etc., and the present invention also applies to these devices. Of course, it can also be applied in the same way.

Effects of the invention In the case of the above-described device, the jig rotates in conjunction with the lifting and lowering of the lifting shaft, so caulking work can be performed without the troublesome work of the conventional example described above. . Therefore, the caulking work can be performed much more efficiently.

In addition, during the caulking period, the locking pin engages with the locking groove, and the jig holder, that is, the jig attached to it, is prevented from rotating, so the jig does not rotate in the opposite direction. This means that the jig can be reliably positioned in the front-back direction without any risk. Furthermore, compared to the conventional example described above, it is possible to reduce the possibility that the positioning accuracy will deteriorate over time, so there is an advantage that highly accurate caulking work can be enjoyed over a long period of time.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, FIG. 1 is a perspective view showing the overall configuration of the caulking device according to the present invention, and FIG. 2 is a partially cut away view of the main parts. 3 is a front view, and FIG. 3 is a right side view. Fourth
The figure is a side view showing the main parts of a conventional example. 3... Frame, 30... Guide tube, 31... Lifting shaft, 33... Horizontal pin, 34... Jig holder, 3
5...Descent guide piece, 36...Positioning piece, 136
... Stopping pin, 37 ... Copying pieces 37, 38 ...
...Tension springs 38, 39... Jig, 130... Pedestal, 131... Receiving base, 4... Connecting arm, 41...
...Pedal, 43...Support shaft, 47...Return spring,
50... crimping metal fitting, 51... button, 52...
Fabric, 6... Anti-rotation piece, 6a... Anti-rotation groove.

Claims (1)

[Scope of utility model registration request] A device for caulking a caulking metal fitting to a material to be caulked, comprising: a frame including a pedestal for receiving the caulking metal fitting or the material to be caulked; an elevating shaft that is guided in a guide tube provided on the frame so as to be able to rise and fall; a jig holder attached to the tip of the lifting shaft so as to be rotatable around a horizontal axis; a jig connected to the tip of the jig holder to hold the caulking fitting or the material to be caulked; and the guide. a detent piece attached to the side surface of the cylinder and having a detent groove on the tip side; and a detent piece connected to the jig holder and engaged with the detent groove as the elevating shaft moves up and down; and a detachable rotation stopper pin, the lifting shaft can be moved to a maximum raised position where the jig holder is in a horizontal position, and a maximum lowered position where the jig holder is in a vertical position and the caulking fitting is caulked to the caulking material. A caulking device characterized in that it is designed to be raised and lowered across the body.