JPH07259820A - Stapler for metal plate coupling - Google Patents

Abstract

PURPOSE:To provide a coupling device which can join thin steel plates or the like simply and rapidly. CONSTITUTION:A staple 1 and a washer 11 are formed of tool steel or the like. A pair of holes 12, 12 are provided at the washer 11, and the leg portions 2, 2 of the staple 1 are inserted respectively into the holes 12, 12. The width of a groove 4 between both leg portions 2, 2 of the staple 1 dwindles upward, and the width of a narrow width portion 4a is narrower than an interval between the holes 12, 12 of the washer 11. Also, stepped portions 5, 5 to prevent coming off are provided on the outside surfaces of both leg portions 2, 2 of the staple 1. For example, when two thin channel steel plates 6, 6 are made to be back to back with each other and the washer 11 is set at a place where joining is to be carried out and the staple 1 is driven in by means of a stapler, both leg portions 2, 2 are expandingly opened by means of a separator portion 13 between the washer 11 holes 12, 12, and the channel steel plates 6, 6 are coupled to each other by the stepped portions 5, 5 being engaged with burs 6a, 6a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to staples, and more particularly to a stapling apparatus for sheet metal joining for joining sheet metal structural materials such as thin sheet channel steel to each other.

[0002]

2. Description of the Related Art Conventionally, when building materials such as thin plate channel steel and sheet metal are mutually connected, they are fastened using bolts and nuts.

[0003]

The conventional sheet metal joining means for joining thin plate channel steel and the like by means of bolts and nuts has the drawback that the bolt and nut fastening work is complicated, the work is time consuming, and the work efficiency is low. is there. Therefore, there is a technical problem to be solved in order to facilitate the sheet metal joining work, shorten the work time, and improve the work efficiency, and the present invention aims to solve the above problem.

[0004]

DISCLOSURE OF THE INVENTION The present invention is proposed in order to achieve the above-mentioned object, and forms a staple and a washer from a plate material such as a steel plate by punching or the like, and the staple is substantially aligned in the same direction. Two legs arranged in parallel are formed in a gate shape in which one end side is connected by an intermediate connecting portion, and a pair of holes for inserting both legs of the staple are formed in the washer, and both legs of the staple are formed. Is formed to be narrower than the space between the pair of holes of the washer from the upper connecting portion to the upper and lower intermediate portions, and
A stapling device for sheet metal joining in which both the leg portions are formed to be tapered by gradually increasing the distance toward the lower end portion, and a step portion for preventing slipping out is provided on the outer surface of each of the leg portions, and punching processing from a plate material such as a steel plate A washer and a gate-shaped staple are formed by, for example, a hole for inserting both legs of the staple is opened in the washer, and the width of the staple is from the inner size of the hole of the washer from the upper connecting portion to the upper and lower intermediate portion. Also provided is a stapling apparatus for sheet metal joining, which is formed to have a wide width, and the width is reduced toward a lower end to form the both legs in a tapered shape, and stepped portions for preventing the respective legs are provided on opposing surfaces of the both legs. To do.

[0005]

In the stapling apparatus according to the present invention, when the washer is set on the surface of an object such as a laminated thin iron plate and the staple is driven into the pair of holes of the washer, both legs of the stapler touch the object. Penetrate. Then, the portion between the pair of holes of the washer is press-fitted into the groove between the two leg portions of the staple.
Since the upper part of the groove is formed narrower than the space between the holes of the washer, both legs are expanded outwardly as the staple enters, and the stepped part provided on the outer surface of the leg is the object. The staples are engaged with the edges of the breaking holes to prevent movement of the staples in the pulling-out direction, and thereby the objects such as the laminated iron plates are joined.

In the stapler of the stapling apparatus according to the second aspect, the width of the tip portion is formed narrower than that of the upper portion, and when the staple is driven into the hole of the washer set on an object such as an iron plate, both legs are separated. While passing through the object, the outer surfaces of both legs slide on the wall surface of the hole of the washer formed narrower than the entire width of the staple, and the intermediate connecting portion of the staple buckles. When the staples are bent, the tips of both legs come closer to each other, and the stepped portions provided on the facing surfaces of both legs engage with the edges of the fracture hole of the object to move the staples in the pull-out direction. It is blocked and an object such as an iron plate is bonded.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 3 show a stapling apparatus for sheet metal joining according to claim 1, wherein the staple 1 shown in FIG. 1 and the washer 11 shown in FIG. 2 are formed by punching a plate material of tool steel,
As shown in FIG. 1, the staple 1 is composed of two leg portions 2 and 2 extending substantially parallel to each other in the same direction and an intermediate connecting portion 3 connecting the both leg portions 2 and 2 to each other at one end side. . The groove 4 between the left and right leg portions 2 and 2 has a constant width from the upper end portion to a slightly upper position between the upper and lower portions, and then gradually expands downward, and the degree of expansion further increases from the vicinity of the lower end portion. The legs 2 and 2 have edges 2a and 2
a is formed.

The width W ₁ of the narrow portion 4a above the groove 4 is as shown in FIG.
Is formed smaller than the interval W ₂ between the pair of holes 12, 12 provided in the washer 11 shown in FIG.
The diameter D ₁ of 12 is larger than the width W _{3 of} each leg 2, 2 of the staple 1 into the holes 12, 12 into both legs 2, 2.
It is formed so that it can be inserted. Also, both legs 2, 2
The stepped portions 5 and 5 are provided at upper and lower intermediate portions of the outer side surface of the stapler, and the upper surface of the intermediate connecting portion 3 of the staple 1 is formed in a crown shape, and the staple driver of the staple driving machine hits the apex of the upper surface. When doing so, the legs 2 and 2 are smoothly expanded to the left and right. Then, a large number of staples 1, 1, ... Are connected by an adhesive agent and stored in a magazine of a stapler using a compressed air or the like as a power source to perform sheet metal joining work.

In the joining operation, first, the washer 11 is set at the staple driving point of the thin plate channel steels to be joined, and the legs 1 and 2 of the staple 1 are aligned with the holes 12 and 12 of the washer 11 so that the staple 1 is formed. When fired, the edges 2a at the tips of the legs 2 and 2 of the staple 1
2a is struck by breaking the channel steels 6 and 6 laminated back to back as shown in FIG. Then, the stepped portions 5, 5 of the staple 1 penetrate the channel steels 6, 6, and the separator portion 13 between the pair of holes 12, 12 of the washer 11 is press-fitted into the narrow width portion 4 a of the groove 4 of the staple 1. , Both legs 2, 2 are forcibly expanded outward. Then, as shown in the figure, the stepped portions 5 and 5 are the channel steels 6 and 6.
The staple 1 is fixed to the channel steels 6 and 6 by engaging the flash beams 6a and 6a, and the two channel steels 6 and 6 are joined.

4 to 6 show a sheet metal joining staple device according to a second aspect of the present invention. The staple 21 shown in FIG. 4 and the washer 31 shown in FIG. 5 are the same as those shown in FIGS. 1 and 2. It is formed by stamping steel. As shown in FIG. 4, the staple 21 is provided with a stepped portion 2 for preventing the staples 21 from slipping off from the facing surfaces of the left and right leg portions 22, 22.
3 and 23 are provided, the entire width of the staple 21 is formed in a wedge shape that decreases downward, and the washer 31 is provided near the upper end portions of the outer side surfaces of the tapered leg portions 22 and 22.
Are formed with stepped portions 24, 24 for preventing the falling off.

Further, both leg portions 22, 22 of the staple 21 are
The upper surface of the intermediate connecting portion 25 that connects the upper and lower ends has a concave shape in which both left and right end portions are raised. When the staple driver of the staple driving machine hits the upper surface, the central portion of the intermediate connecting portion 25 buckles and the legs 22 , 22 are designed so as not to interfere with the approaching movements of the tip portions. The washer 31 is
As shown in FIG. 5, a long groove-shaped hole 32 is opened in the central portion, and the longitudinal width W ₄ of the hole 32 is larger than the total width W ₅ of both leg portions 22, 22 of the staple 21 shown in FIG. It is formed slightly narrow.

When using the above-described sheet metal joining staple device comprising the staple 21 and the washer 31, the staples 21, 21, ... Connected by an adhesive are stapled as in the case shown in FIGS. Load into the hammer. Then, the washer 31 is set at the staple driving point of the thin plate channel steels to be joined, the both legs 22, 22 of the staple 21 are aligned with the holes 32 of the washer 31, and the staple 21 is fired. As shown in FIG. 6, the fired staple 21 is formed by breaking the laminated channel steels 6 and 6 so that the stepped portions 23 and 23 provided on the facing surfaces of the two leg portions 22 and 22 can remove the channel steels 6 and 6, respectively. While penetrating, the outer surfaces of both legs 22, 22 are holes 32 of the washer 31.
The intermediate connecting portion 25 of the staple 21 is forcibly bent by rubbing the hole wall, and the tip portions of the two leg portions 22, 22 come close to each other. As a result, the two leg portions 22 and 22 are connected to the channel steels 6, 6
The burrs 6b, 6b of the breaking holes of the
The staples 21 are prevented from moving in the pull-out direction by engaging with the flashes 6b, 6b, and the stepped portions 24, 24 provided on the outer side surface of the staple 21 come into contact with the upper surface of the washer 31 to enter the staple 21. Is stopped and the two channel steels 6, 6 are joined.

As described above, the thin plate channel steels and the like can be connected to each other by the staples, and the connecting strength comparable to that of the connecting device using the bolt and the nut can be obtained. It should be noted that the present invention should not be limited to the above-mentioned embodiment, and the material and shape of the stapling device can be variously modified within the technical scope of the present invention, and the present invention is modified by them. It goes without saying that it extends to all things.

[0014]

As described in detail in the above one embodiment, the present invention enables structural members such as thin plate channel steel to be connected to each other by using a staple driving machine, so that the conventional connecting means using bolts and nuts can be used. Also, the work is remarkably easy and quick, and the work efficiency is improved, the construction period is shortened, and the construction cost is effectively reduced.

[Brief description of drawings]

1 shows an embodiment of the invention according to claim 1, (a)
Is a front view of the staple, and (b) is a side view.

FIG. 2 shows an embodiment of the invention according to claim 1, (a)
Is a plan view of the washer, and (b) is a side view.

FIG. 3 shows the operation of the stapling device according to claim 1,
Explanatory drawing showing a stapled state.

FIG. 4 shows an embodiment of the invention according to claim 2, (a)
Is a front view of the staple, and (b) is a side view.

FIG. 5 shows an embodiment of the invention according to claim 2, (a)
Is a plan view of the washer, and (b) is a side view.

FIG. 6 shows the operation of the stapling device according to claim 2,
Explanatory drawing showing a stapled state.

[Explanation of symbols]

 1,21 Staples 2,22 Legs 3,25 Intermediate connecting portion 4 Grooves 4a Narrow width portion 5,23 Stepped portion 6 Channel steel 6a Burr 11,31 Washers 12,32 holes

Claims (2)

[Claims] 1. A staple (1) and a washer (11) are formed from a plate material such as a steel plate by punching or the like, and the staple (1) is arranged substantially in parallel in the same direction.
A pair of leg portions (2, 2) formed by forming one end side of the leg portions (2, 2) of the book in a portal shape connected by an intermediate connecting portion (3) and inserting both leg portions (2, 2) of the staple through the washer (11). The holes (12, 12) are opened, and the distance between the leg portions (2, 2) of the staple is larger than the distance between the pair of holes (12, 12) of the washer (11) from the upper connecting portion to the upper and lower intermediate portions. The leg portions (2, 2) are also formed in a tapered shape by gradually narrowing the distance toward the lower end portion, and the stepped portions for preventing the respective legs (2, 2) from coming off are formed on the outer surfaces of the leg portions (2, 2). A stapling device for sheet metal bonding, having (5, 5). 2. A staple (21) and a washer (31) are formed by punching or the like from a plate material such as a steel plate, and the staple (21) has two leg portions (22) arranged substantially parallel to each other in the same direction. , 22) at one end of the intermediate connecting portion (2
5) formed into a gate shape connected by the washer (3
1) Both legs (22, 22) of the staple (21)
A hole (32) for inserting the staple (2)
The width of 1) is formed to be wider than the inner size of the hole (32) of the washer (31) from the upper connecting portion to the upper and lower intermediate portions, and the width is reduced toward the lower end portion to reduce the width of the leg portions (22, 22). ) Is tapered, and stepped portions (2) for preventing the respective legs (22, 22) from coming off are formed on the facing surfaces.
3, 23) provided with a stapling device for sheet metal joining.