JP2561152Y2 - Drive device for hand pliers stapler - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving device for a hand-plied stapler.

[0002]

2. Description of the Related Art As shown in FIGS. 4 and 5, a hand plier-type stapler has a magazine frame 32 which accommodates a binding needle 30 and has a needle punching portion 31 at a front end thereof. An operation frame 34 provided with a driver 33 for punching a needle (connecting needle) in the frame 32 and a clincher arm 36 provided with a clincher 35 arranged opposite to the needle leg to be punched are supported by a support shaft 37. The operation frame 34 is supported so as to be rotatable with each other.
A handle 38 is integrally formed at the rear of the handle 38, and a handle 39 whose one end is engaged with the operation frame 34 and whose center is pivotally supported on the clincher arm 36 by the pin 27 is attached to the handle 38. Is operated by hand to perform the binding operation. In addition, 40 and 41 are return springs, and 42 is a pusher.

[0003] Therefore, when this type of stapler is used in a production site such as an assembly factory, the work is performed continuously for a long time, so that the burden on the operator is increased. For this reason, it is conceivable to use a stapler that has a built-in electric motor or solenoid and is operated by power.However, these staples are large in size and heavy in weight. Not suitable for work.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can be easily attached to a conventional pliers-type stapler, and can be grasped with one hand and used for various operations. It is intended to provide a device.

[0005]

According to the present invention, there is provided a hand plier-type stapler driving device according to the present invention, which includes a magazine frame for accommodating a binding staple and having a stapling portion at a front end thereof; A hand plier in which an operation frame provided with a driver for punching a needle in the magazine frame and respective rear ends of clincher arms provided with clinchers disposed opposite to the needle legs to be punched are rotatably supported with respect to each other. A driving device for a mold stapler, wherein the driving device includes a main body having a grip formed on an upper portion thereof, the main body including a driving cylinder, a driving piston slidably disposed in the driving cylinder, and a driving piston. A drive mechanism comprising a piston rod coupled to the drive piston and projecting from the drive cylinder, the drive mechanism being operated by compressed air; and the operation of the stapler. A mounting portion for mounting a frame and a link mechanism for connecting the piston rod to the clincher arm of the stapler are provided, and compressed air is supplied / discharged into the drive cylinder between the drive mechanism and a compressed air supply source. A starting valve to be operated is disposed, and the starting valve is operated based on an operation of a starting lever arranged near the grip.

[0006]

According to the above construction, the operation frame of the hand pliers type stapler is mounted on the mounting portion of the driving device, and the driving device is mounted on the stapler by connecting the piston rod of the driving mechanism to the clincher arm of the stapler. be able to. To operate the spelling, first grasp the grip, insert the spelling paper into the stapler, operate the start lever to operate the start valve, supply compressed air into the drive cylinder, and connect the drive piston and piston rod. By driving, the clincher arm operates together with the link mechanism, and the driver of the operation frame slides on the punching portion of the magazine frame, and the staples in the staple driving portion are driven from the staple driving portion to perform spelling.

Then, when the operation of the start lever is released,
The starting valve is operated to return, the compressed air in the driving cylinder is discharged, the driving piston and the clincher arm are also operated to return, and the stapler returns to the initial state.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral A designates a driving device for a hand pliers type stapler. The driving device A comprises a driving mechanism 2 operated by compressed air on a frame-shaped main body 1, and a hand pliers type stapler. It comprises a mounting portion 3 for the stapler B and a link mechanism 4.

The main body 1 has a side wall 1a and a bottom wall 1 facing each other.
b and a rear wall 1c, a grip 5 is fixed to the rear wall 1c, and a drive mechanism 2 is disposed on the bottom wall 1b. As shown in FIGS. 2 and 3, the drive mechanism 2 includes a drive cylinder 2a, a drive piston 2b slidably disposed in the drive cylinder 2a, and a piston rod 2c connected to the drive piston 2b. The rod 2c protrudes upward through the cylinder head 6 of the drive cylinder 2a. Further, a compression spring 7 is disposed between the driving piston 2b and the cylinder head, and the driving piston 2b
Is constantly urged to contact the lower bottom wall 8 of the drive cylinder 2a.

A valve housing 9 extends through the lower bottom wall 8 of the drive cylinder 2a in a direction perpendicular to the operation direction of the drive piston 2b. The valve housing 9 includes a large-diameter portion 9a (rear portion) and a small-diameter portion 9b (front portion). The large-diameter portion 9a has an open end of an air hose 10 connected to a compressed air supply source (not shown) such as an air compressor. Installed. The small-diameter portion 9b is a drive cylinder 2 of the drive mechanism 2.
a and a compressed air supply. And
A valve stem 11 is slidably housed inside the small diameter portion 9b, and the valve housing 9 and the valve stem 11 constitute a starting valve 14 for supplying and discharging compressed air into the drive cylinder 2a. That is, the front end of the valve stem 11 is exposed to the outside, and the rear end of the valve stem 11 enters the large diameter portion 9a. Also, bulging portions 11a and 11b are formed at both front and rear ends of the valve stem 11, and the O-ring 1 that opens and closes the small-diameter portion 9b is formed at the bulging portion 11a at the front end.
2, the inner surface of the bulging portion 11b at the rear end is formed so as to be able to contact the packing 13 on the end wall of the large diameter portion 9a. When the O-ring 12 comes into contact with or separates from the small diameter portion 9b, the rear end bulging portion 11b separates or comes into contact with the packing 13. A substantially middle portion of the small-diameter portion 9b communicates with the drive cylinder 2a through a communication hole 16.

The starting valve 14 operates based on the operation of the starting lever 17. As shown in FIGS. 1 and 2, the starting lever 17 has a mounting piece 17b at the upper part on both sides of the front end of a frame 17a surrounding the driving cylinder 2a, and a valve stem of the starting valve 14 below a central part of the end. A pressing piece 17c facing the front end of the lever 11 is further provided with a lever 17 at the rear end.
d, and the lever portion 17d is disposed near the lower portion of the grip 5. The actuating lever 17 is rotatably mounted on a trigger pin 18 which is supported by the mounting piece 17b penetrating through both side walls 1a of the main body 1 so as to be rotatable.
The front surface of 7c is engaged with the mounting portion 3 described later, and the overall balance is maintained.

Next, a link mechanism 4 constituted by a U-shaped link 19 which opens downward is disposed between the inside of both side walls 1a of the main body 1 and the outside of the drive mechanism 2. A link pin 20 penetrates an upper portion of both side pieces 19a, and a lower portion of the link 19 is a bottom wall 1b
And extends downward through the through hole 22 formed at the bottom. The link pin 20 is connected to the upper end of the piston rod 2c of the drive mechanism 2.

Further, a mounting portion 3 for the operation frame 34 of the stapler B is formed on the bottom wall 1b. The mounting portion 3 is configured by fixing the mounting plate 24 to the lower surface of the bottom wall 1b with bolts 25.

When the driving device A having the above configuration is mounted on the stapler B (same as that shown in FIGS. 4 and 5), the mounting plate 24 on the lower surface of the mounting portion 3 of the main body 1 is attached to the operation frame of the stapler B. The bolt 25 is fastened by engaging with the inside of the opening 26 formed on the upper surface of the upper part 34, and the lower ends of both side pieces 19 a of the link 19 of the link mechanism 4 are pivotally connected to the clincher arm 36 of the stapler B and the handle 39. What is necessary is just to couple with the pin 27 which has. At this time, the handle 39
Can be removed. Thereby, the driving device A is fixed to the stapler B, and the piston rod 2c of the driving mechanism 2 is connected to the clincher arm 36 of the stapler B by the link mechanism 4.

Next, a usage mode of the stapler with a driving device will be described with reference to FIGS. Before the spelling operation, the compressed air is not supplied to the driving mechanism 2, so that the driving piston 2
b is at the bottom dead center, so that the link mechanism 4 and the clincher arm 36 linked to the piston rod 2c are also at the lowest point. Therefore, a large binding paper insertion space is formed in the binding paper sandwiching portion 28 between the clincher arm 36 of the stapler B and each front end of the magazine frame 32.

When the spelling operation is performed, first, after gripping the grip 5 and inserting the stencil sheet 29 into the sandwiching portion 28 and then pulling the lever portion 17d of the activation lever 17, the activation lever 17 rotates around the trigger pin 18. As the pressing piece 17c moves to push the valve stem 11 of the activation valve 14, the activation valve 14 operates to close the end of the small-diameter portion 9b and open the end of the large-diameter portion 9a. Compressed air is introduced into the drive cylinder 2a through communication with the cylinder 2a. Thereby, the drive piston 2b
The piston 19 and the piston rod 2c are driven upward against the compression spring 7, so that the link 19 is operated upward and the clincher arm 36 is operated upward. For this reason, first, the interval of the spelling sheet sandwiching portion 28 between the clincher arm 36 and the magazine frame 32 is narrowed, and the clincher 35 and the needle punching portion 31 of the magazine frame 32 face each other with the spelling paper 29 therebetween, and the link 19 is When the magazine frame 32 is further moved upward, the magazine frame 32 and the operation frame 34 rotate and the respective front ends approach each other, so that the driver 33 fixed to the operation frame 34 slides in the needle driving section 31 of the magazine frame 32. At this time, the binding needle 30 supplied into the staple driving portion 31 by the pusher is driven out from the staple driving portion 31, and the staple legs are bent by the clincher 35 after penetrating the spelling paper 29, thereby completing the spelling. .

After that, when the pulling of the starting lever 17 is released, the valve stem 11 of the starting valve 14 is pushed by the pressing piece 17c.
Since the pressure of the compressed air from the air hose 10 is larger than the pressing force of the air hose 10, the compressed air from the air hose 10 returns to the original position. Therefore, the starting valve 14 opens the end of the small-diameter portion 9 b and the end of the large-diameter portion 9 a. And the compressed air in the drive cylinder 2a is discharged from the small diameter portion 9b of the valve housing 9. As a result, the drive piston 2b is
, The link 19 and the clincher arm 36 are also operated downward, so that the springs 40 and 41 in the stapler B expand the space between the clincher arm 36 and the magazine frame 32, and the magazine frame 3
2 and the front ends of the operation frame 34 are also separated from each other, so that the driver 33 escapes from the staple driving unit 31 and returns to the initial state, and the staple driving unit 31 is supplied with a new binding needle 30.
The next spelling operation is prepared.

[0018]

According to the present invention, since the grip is formed on the driving device, the stapler can be operated by holding the stapler with one hand via the driving device, and the starting lever is disposed near the grip. By operating the stapler, the stapler can be driven. Therefore, long spelling work can be performed easily, and labor can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a hand pliers stapler driving device according to the present invention in partial cross section.

FIG. 2 is a front view of the driving device.

FIG. 3 is a longitudinal sectional view of a driving mechanism of the driving device.

FIG. 4 is a vertical cross-sectional view of a hand-plied stapler.

FIG. 5 is a perspective view of main components of the hand pliers stapler driving device.

[Explanation of symbols]

 Reference Signs List A driving device B hand pliers type stapler 1 main body 2 driving mechanism 2a driving cylinder 2b driving piston 2c piston rod 3 mounting portion 5 grip 14 starting valve 17 starting lever 30 binding needle 31 needle driving portion 32 magazine frame 32 33 driver 34 operation Frame 35 clincher 36 clincher arm

Claims (1)

(57) [Scope of request for utility model registration] 1. A magazine frame for accommodating a binding needle and having a needle ejection portion at a front end thereof, an operation frame having a driver for ejecting a needle in the magazine frame, and a needle leg to be ejected. A driving device for a hand-plier stapler, wherein each rear end of a clincher arm having a clincher to be arranged is rotatably supported with respect to each other, wherein the driving device includes a main body having a grip formed on an upper portion thereof. The main body includes a drive cylinder, a drive piston slidably disposed in the drive cylinder, and a piston rod coupled to the drive piston and protruding from the drive cylinder, the drive being operated by compressed air. Mechanism and
A mounting portion for mounting the operation frame of the stapler, and a link mechanism for connecting the piston rod to a clincher arm of the stapler are provided, and compressed air is supplied into the drive cylinder between the drive mechanism and a compressed air supply source. A drive valve for supplying / discharging air, and operating the start valve based on an operation of a start lever disposed near the grip.