JPH0925921A - Connecting method and member of screw holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a continuous screw application work with plural screw holding tools by connecting together respective screw holding tools through a process of insertingly attaching connection members freely attachable/ detachable from/to a screw holding hole, with a screw holding hole on the end part of an integrated screw holding tool and with the screw holding hole on the end part of the other screw holding tool different from the former one. SOLUTION: When the first screw holding tool 1a is connected to the second screw holding tool 1b, the worker inserts a hollow cylindrical body 3b positioned on the end part of the second screw holding tool 1b into a screw holding hole 5a positioned on the end part of the first screw holding tool 1a so that the first and the second screw holding tools 1a, 1b may be aligned on one straight line. Then, since both the first and second screw holding tools 1a, 1b are formed of soft synthetic resin, both the screw holding hole 5a and the hollow cylindrical body 3b are elastically deformed. Thereby, the hollow cylindrical body 3b is pushed into the screw holding hole 5a up to a position where the belt upper surface 12a of the first screw holding tool 1a and the belt lower surface 11b of the second screw holding tool 1b make mutual contact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting belt-shaped screw holders for continuously supplying screws to an automatic screw tightener, and a connecting member for connecting the screw holders.

[0002]

2. Description of the Related Art Conventionally, a plurality of screws 41 are held by a belt-shaped screw holder 40 as shown in FIGS. 7 and 8 in order to continuously supply the screws to an automatic screw tightener. When the head 42 of the screw 41 held by the screw holder 40 is sent to a position facing a driver bit (not shown), it is pushed out of the screw holder 40 by the driver bit of the automatic screw tightening machine, and is pushed against the wall. Be driven in. When the automatic screw tightener pushes out one screw, the screw holder 40 reaches the position where the next screw faces the driver bit.
Is sent by a predetermined amount. The above operation is repeated to continuously supply the screws to the automatic screw tightening machine.

[0003]

However, the number of screws held by one screw holder 40 shown in FIGS. 7 and 8 is at most 10 for the convenience of carrying by an operator.
It is about 0. Then, when all the screws 41 held by the single screw holder 40 are driven in, the worker stops the screw driving work each time and installs a new screw holder 40 in the automatic screw tightener. I had to do some reloading work.

[0004]

In order to solve the above problems, the invention of claim 1 has a belt-like base body having holding holes for holding a plurality of screws so that the screws can be sequentially loaded in an automatic screw tightening machine. In the screw holder provided in, the screw holding hole at the end of the integrated screw holder and the screw holding hole at the end of the screw holder separate from the screw holder are attached to and detached from the screw holding hole. It is characterized in that a free connecting member is inserted and connected to each screw holder. According to the invention of claim 1,
With the integrated screw holder loaded in the automatic screw tightening machine, the operator sets the screw holder hole at the end of the integrated screw holder and the screw holder hole at the end of the separate screw holder. By inserting and connecting the connecting member, the worker can continuously perform the screw driving operation from the plurality of screw holders. Then, when all the screws held by the integrated screw holder are driven in and the driving of the screws held by the separate screw holder is started, the worker holds the connecting member in the integrated screw holder. The screw holder after removing a predetermined number of screws from the screw holding hole at the end of the tool and the screw holding hole at the end of the separate screw holder and having been loaded in the automatic screw tightener. It can be sequentially removed from the screw holder.

According to a second aspect of the present invention, there is provided a screw holder in which a hollow cylindrical body is provided on one surface of the belt-shaped substrate and the inner wall of the hollow cylindrical body serves as a screw holding hole. Is shaped like a truncated pyramid, and a hollow cylindrical body with a separate screw holding hole is inserted into the screw holding hole at the end of the integrated screw holder, and is connected to the screw holding hole of the hollow cylindrical body. The feature is that a member is inserted. According to the invention of claim 2, since the hollow cylindrical body and the screw holding hole of the screw holder have a truncated pyramid shape, one screw holder and another screw holder can be connected at one point. However, at this connected portion, another screw holder does not swing with respect to the integrated screw holder.

According to a third aspect of the present invention, the connecting member has a head portion that engages with the belt-shaped base of the screw holder, a shaft portion that is connected to the head portion and that penetrates the screw holding hole, The invention is characterized in that a locking portion that is continuously provided to the shaft portion and that locks an end portion of the hollow tubular body is provided, and a cutout portion that is carved in a connecting portion between the locking portion and the shaft portion. There is. According to the third aspect of the present invention, the screw of the hollow tubular body is inserted in the screw holding hole of the end of the integral screw holding tool while the hollow tubular body of the end of another screw holding tool is fitted. By inserting the connecting member into the holder, the belt-shaped base body of the another screw holder and the end surface of the hollow cylindrical body forming the screw holding hole at the end of the integral screw holder are connected. It is sandwiched by the head of the member and the locking portion, and the integrated screw holder and the separate screw holder are connected. Then, in a state where the integral screw holder and the separate screw holder are coupled, by urging the locking portion with respect to the shaft portion in a direction in which the locking portion is bent, the coupling member is cut at the cutout portion. It breaks, and the connection between the integrated screw holder and the separate screw holder is released.

According to a fourth aspect of the present invention, there is provided a screw holder in which a hollow cylindrical body is provided on one surface of the belt-shaped substrate and the inner wall of the hollow holder serves as a screw holding hole. In a state in which the edge portion and the edge portion in the longitudinal direction of another screw holder are in contact with each other, a screw holding hole at the end portion of the integral screw holder,
It is characterized in that the connecting member is inserted and attached so as to straddle between the screw holding hole at the end of the separate screw holding tool. According to the invention of claim 4, the connecting member is inserted and attached so as to straddle the screw holding hole at the end portion of the integrated screw holder and the screw holding hole at the end portion of another screw holder, thereby forming an integral body. Even if the hollow cylindrical body of the screw holder and the screw holding hole have any shape by connecting the screw holder of (1) and another screw holder, the screw holding unit can hold the integrated screw Another screw holder does not swing with respect to the tool.

According to a fifth aspect of the invention, the connecting member has a head portion that engages with the belt-shaped base of the screw holder, and the first shaft portion and the second shaft portion that are connected in parallel to the head portion. Shaft portion, a locking portion that is respectively connected to each shaft portion and locks an end portion of the hollow cylindrical body, a connecting portion between the first shaft portion and the locking portion, and a second shaft portion. It is characterized in that it is provided with a notch formed in each of the connecting portions of the locking portion and the locking portion. According to the invention of claim 5, the first shaft portion is inserted into the screw holding hole of the end portion of the integral screw holding tool so that the end surface of the hollow cylindrical body forming the screw holding hole is moved to the first side. A hollow that is locked by a locking portion that is continuously provided to one shaft portion, and that the second shaft portion is inserted into a screw holding hole at the end portion of another screw holder to form this screw holding hole. By locking the end surface of the cylindrical body with the locking portion that is provided continuously with the second shaft portion, the integrated screw holder and the other screw holder are connected. Then, in a state in which the integral screw holder and the separate screw holder are coupled, by urging the locking portion with respect to each of the shaft portions in a direction in which the locking portion is bent, the coupling member is cut at the cutout portion. Breaks,
The connection between the integrated screw holder and the separate screw holder is released.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
FIG. 1 is an exploded perspective view showing a configuration of an end portion of a screw holder in which a connecting method according to a first embodiment of the present invention is used, and FIG. 2 is a connecting method according to the first embodiment. FIG. 3 is a plan view of a connecting portion of the screw holding tool connected in FIG. 3, and FIG. 3 is a cross-sectional view of FIG. 2. The integrated screw holder 1a and another screw holder 1b (hereinafter, the integrated screw holder 1a is referred to as a first screw holder 1a and the other screw holder 1b is referred to as a second screw holder 1b) are It is made of soft synthetic resin such as density polyethylene. In the first screw holder 1a, a hollow cylindrical body 3a is projectingly provided on one surface of a belt-shaped substrate 2a.
a is provided at a predetermined interval along the axial direction of the belt-shaped substrate 2a (hereinafter, in the belt-shaped substrate 2a, the surface on the side where the hollow cylindrical body 3a is projecting is referred to as a belt lower surface 11a and the belt lower surface 11a. The surface on the opposite side is described as a belt upper surface 12a).

The screw holding hole 5a for holding the screw 4 is composed of a hole formed in the protruding portion of the hollow cylindrical body 3a in the belt-shaped substrate 2a and an inner wall of the hollow cylindrical body 3a. There is. The hollow cylindrical body 3a has a taper that contracts along the protruding direction, and the screw holding hole 5a also has a taper that is inclined along the outer wall of the hollow cylindrical body 3a. The shape of the belt base side opening 6a of the screw holding hole 5a is a square with a length of about 5 mm, and the shape of the hollow tubular body side opening 7a is a square with a length of about 3 mm. Has become.

Further, the belt-shaped base body 2a near the screw holding hole 5a is provided with a hole 8a at a position corresponding to the diagonal direction of the screw holding hole 5a. Each of these holes 8a
Is formed so that the body diagonal direction of the screw holding hole 5a in FIGS. 1 to 3 and one diagonal line of the punching hole 8a coincide with each other, and the width of one piece of the punching hole 8a is slightly less than 2 mm. Has become. These holes 8a are formed so as to partially overlap the belt-shaped base body side opening 6a.

Notches 9a are provided at predetermined intervals on both side surfaces of the belt-shaped substrate 2a. The notch 9a is provided when the first screw holder 1a is loaded into the automatic screw tightening machine.
It is adapted to engage with a screw holder transport mechanism (not shown) of the automatic screw tightener. The second screw holder 1b is
Similar to the first screw holder 1a, the hollow cylindrical body 3b, the screw holding hole 5b, the removal hole 8b, the belt-shaped base body 2b,
The notch 9b is provided.

The connecting member 10 includes a head portion 10a and a shaft portion 10b.
And a locking portion 10c. The diameter of the head 10a is
The length is longer than the length of one piece of the belt-shaped base-side opening 6a of the screw holding hole 5a. Further, the diameter of the shaft portion 10b is substantially equal to the length of one piece of the hollow cylindrical body side opening portion 7a of the screw holding hole 5a, and the diameter of the locking portion 10c at the connecting portion between the locking portion 10c and the shaft portion 10b. The diameter is not less than the length of one piece of the hollow tubular body side opening 7a and not more than the length of one piece of the belt-shaped base body side opening 6a. Further, an annular cutout 10d is formed in a continuous portion of the shaft portion 10b and the locking portion 10c.

In the connection method according to the first embodiment,
When connecting the screw holders 1a and the second screw holders 1b, the operator has to use the first screw holders 1a and the second screw holders 1a.
The hollow cylindrical body 3b located at the end portion of the second screw holder 1b is inserted into the screw holding hole 5a located at the end portion of the first screw holder 1a so as to be aligned with b. At this time,
Since both the first screw holder 1a and the second screw holder 1b are made of soft synthetic resin, both the screw holding hole 5a and the hollow cylindrical body 3b are elastically deformed. Thereby, the first
The hollow cylindrical body 3b is pushed into the screw holding hole 5a to a position where the belt upper surface 12a of the screw holder 1a and the belt lower surface 11b of the second screw holder 1b come into contact with each other.

With the hollow cylindrical body 3b pushed into the screw holding hole 5a as described above, the operator inserts the connecting member 10 into the screw holding hole 5b which is also the inner wall of the hollow cylindrical body 3b,
The connecting member is pushed until the shaft portion 10b of the connecting member 10 penetrates the hollow tubular body side opening 7a of the first screw holder 1a. At this time, the upper surface 12b of the second screw holder 1b and the head portion 10a of the connecting member 10 engage with each other, and the first screw holder 1a.
End face of the hollow cylindrical body 3a and the locking portion 10c of the connecting member 10
And are engaged.

After the connecting member 10 is inserted, the elastically deformed hollow cylindrical body 3b and the screw holding hole 5a try to restore to their original shapes, so that the first screw holder 1a and the second screw holder 1b.
An urging force is generated in the direction of separating and. However, because of the engagement relationship as described above, the movement in the direction of separating the first screw holder 1a and the second screw holder 1b is blocked, and the first screw holder 1a and the second screw holder 1a are prevented. 1b is connected. On the other hand, the first screw holder 1a and the second screw holder 1
When the connection with b is released, the worker must hold the locking portion 10c.
Is bent in the direction of arrow A in FIG. By this bending, the connecting member 10 is broken at the cutout portion 10d, and the connection between the first screw holder 1a and the second screw holder 1b is released.

The connecting member 10 is not limited to the shape as in the above-described embodiment, but when the connecting member 10 is inserted into the screw holding holes 5b and 5b, the head 10a has the belt upper surfaces 12a and 12b. A shape such that the shaft portion 10b can penetrate the hollow tubular body side openings 7a, 7b, and a shape in which the locking portion 10c engages with the end surfaces of the hollow tubular bodies 3a, 3b. I wish I had it.

FIG. 4 is an exploded perspective view showing a structure of an end portion of a screw holder in which a connecting method according to a second embodiment of the present invention is used, and FIG. 5 is a second embodiment. It is a top view of the connection part of the screw holder connected by the connection method of FIG. 6, and FIG. 6 is sectional drawing of FIG. In the present embodiment, the configurations of the first screw holder 1a and the second screw holder 1b are the same as those of the first screw holder 1a and the second screw holder 1b shown in the first embodiment. is there.

The connecting member 15 includes a head portion 15a and a first shaft portion 1
5b, the second shaft portion 15d and the locking portion 15c,
A first shaft portion 15b and a second shaft portion 15d are connected in parallel to the head portion 15a. Locking portions 15c are continuously provided at the tips of the first shaft portion 15b and the second shaft portion 15d. Further, an annular notch 15e is formed in each of the continuous portion of the first shaft portion 15b and the locking portion 15c and the continuous portion of the second shaft portion 15d and the locking portion 15c. The diameter of the shaft portion 15b is substantially equal to the length of one piece of the hollow cylindrical body side opening portion 7a of the screw holding hole 5a, and the locking portion 15c and the shaft portion 15 are provided.
The diameter of the locking portion 15c at the connecting portion with b is not less than the length of one piece of the hollow cylindrical body side opening 7a and not more than the length of one piece of the belt-shaped base body side opening 6a.

In the connecting method according to the second embodiment, the first
When connecting the screw holders 1a and the second screw holders 1b, the operator has to use the first screw holders 1a and the second screw holders 1a.
The edge portion 13a of the first screw holder 1a and the edge portion 13b of the second screw holder 1b are held in contact with each other so that b and b are aligned. In this state, the worker inserts the first shaft portion 15b of the connecting member 15 into the screw holding hole 5a located at the end of the first screw holder 1a, and the first shaft portion 15b of the connecting member 15 moves to the first shaft portion 15b. 1 The connecting member 15 is pushed until it penetrates the hollow tubular body side opening 7a of the screw holder 1a.

Next, the operator operates the second shaft portion 1 of the connecting member 15.
5d is inserted into the screw holding hole 5b located at the end of the second screw holding tool 1b, and the second shaft portion 15d of the connecting member 15 moves to the second
The connecting member 15 is pushed in until it penetrates the hollow tubular body side opening 7b of the screw holder 1b. As described above, the connecting member 15
By pushing in, the locking portion 15c at the tip of the first shaft portion 15b
Is locked at the end surface of the hollow cylindrical body 3a, and the second shaft portion 15d
Since the locking portion 15c at the tip is locked at the end surface of the hollow cylindrical body 3b, the connecting member 15 is prevented from falling out of the first screw holder 1a and the second screw holder 1b.

On the other hand, when releasing the connection between the first screw holder 1a and the second screw holder 1b, the operator bends the locking portions 15c, 15c in the direction of arrow B in FIG. Due to this bending, the connecting member 15 has the cutouts 10e,
It breaks at 10e, and the connection between the first screw holder 1a and the second screw holder 1b is released.

Incidentally, also in this embodiment, the connecting member 1
5 is not limited to the above-described shape, and when the connecting member 15 is inserted into the screw holding holes 5b and 5b, the first shaft portion 15b and the second shaft portion 15d have the hollow cylindrical body side opening 7
The shape may be such that it can penetrate through a and 7b, and the locking portion 15c at the tip of each of the shaft portions can be engaged with the end surfaces of the hollow cylindrical bodies 3a and 3b. Further, when the first screw holder 1a and the second screw holder 1b are connected by the connecting method of the present embodiment, the belt-shaped base-side opening 6 of the screw holding holes 5a, 5b is formed.
The shapes of a, 6b and the hollow cylindrical body side openings 7a, 7b may be polygonal other than quadrangular or circular.

[0024]

As described above, according to the present invention, an operator integrally mounts a screw holder on the automatic screw tightening machine during a continuous screw driving operation by the automatic screw tightening machine. And another screw holder can be connected by a connecting member. Therefore, the operator, after driving all the screws held by the integrated screw holder, stops the screw driving operation each time and reloads the automatic screw tightener with another screw holder. It is free from the complicated work. As a result, the time efficiency of the screw driving work by the automatic screw tightening machine is improved.

Further, at the portion where the integrated screw holder and the separate screw holder are connected, the screw holder is connected so as to prevent the swing of the separate screw holder with respect to the integrated screw holder. It is possible to prevent the above-mentioned connecting portion from being blocked in the automatic screw tightening machine.

Further, the worker bends the engaging portion of the connecting member for connecting the integrated screw holder and the separate screw holder with respect to the shaft portion, so that the connecting member has the cutout portion. And the connection between the integrated screw holder and the separate screw holder is released. As a result, the screw holder in which all the predetermined number of screws have been driven is removed from the screw holder in the next order loaded in the automatic screw tightening machine, and does not hinder the screw driving operation of the operator. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of an end portion of a screw holder that is connected by a connecting method according to a first embodiment of the present invention.

FIG. 2 is a plan view of a connecting portion of the screw holder connected by the connecting method according to the first embodiment of the present invention.

FIG. 3 is a sectional view of FIG. 2;

FIG. 4 is an exploded perspective view showing a configuration of an end portion of a screw holder that is joined by a joining method according to a second embodiment of the present invention.

FIG. 5 is a plan view of a connecting portion of a screw holder connected by a connecting method according to a second embodiment of the present invention.

FIG. 6 is a sectional view of FIG. 5;

FIG. 7 is a plan view of a screw held by a screw holder.

FIG. 8 is a side view of FIG. 7;

[Explanation of symbols]

 1a 1st screw holder 1b 2nd screw holder 2a, 2b Belt-shaped base | substrate 3a, 3b Hollow cylindrical body 4 Screw 5a, 5b Screw holding hole 10, 15 Connecting member 10a, 15a Head part 10b, 15b, 15d Shaft part 10c, 15c Locking part 10d, 15e Notch part

Claims (5)

[Claims] 1. A screw holder provided with a belt-shaped base body having holding holes for holding a plurality of screws so that the automatic screw tightener can sequentially load the screws, and a screw holding hole at an end of the integrated screw holder. A feature of the present invention is that each screw holder is connected by inserting and detaching a connecting member detachable from the screw holding hole into a screw holding hole at an end of the screw holder separate from the screw holder. How to connect screw holders. 2. A screw holder in which a hollow cylindrical body is provided on one surface of the belt-shaped substrate, and the inner wall of the hollow cylindrical body serves as a screw holding hole.
The hollow cylindrical body and the screw holding hole are formed in a truncated pyramid shape, and the hollow cylindrical body at the end of the separate screw holding hole is fitted into the screw holding hole at the end of the integrated screw holder. The method of connecting a screw holder according to claim 1, wherein a connecting member is inserted into the screw holding hole of the hollow cylindrical body. 3. A connecting member, a head portion that engages with a belt-shaped base body of a screw holder, a shaft portion that is connected to the head portion and penetrates a screw holding hole, and a shaft portion that is connected to the shaft portion. A connecting member for a screw holder, comprising: a locking portion that locks an end of the hollow cylindrical body; and a notch formed in a continuous portion of the locking portion and the shaft portion. . 4. A screw holder provided with a hollow cylindrical body on one surface of the belt-shaped substrate and having an inner wall as a screw holding hole.
In a state where the longitudinal edge of the integrated screw holder and the longitudinal edge of another screw holder are in contact with each other, a screw holding hole at the end of the integrated screw holder and a separate body 2. The method for connecting a screw holder according to claim 1, wherein the connecting member is attached so as to straddle the end of the screw holder and the screw holding hole. 5. The connecting member includes a head portion that engages with a belt-shaped base body of a screw holder, and a first portion that is connected in parallel to the head portion.
And a second shaft portion of, and each shaft portion is provided continuously,
A locking portion that locks the end of the hollow tubular body, a continuous portion of the first shaft portion and the locking portion, and a continuous portion of the second shaft portion and the locking portion are engraved respectively. And a notch portion, the connecting member of the screw holder.