JPH0612246Y2 - Interlocking nail tape - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention proposes a large number of nails that can be continuously driven using a nailing tape, more specifically, a nailing machine utilizing air pressure or the like. The present invention relates to a tape that holds nails arranged side by side at regular intervals.

[Conventional technology]

The connecting nail used in the above-mentioned nail driver is, as shown in FIG.
A long tape 1 holds a large number of nails 7 in parallel at regular intervals.

As shown in FIG. 1, the conventional tape 1 is made of a synthetic resin thin plate, and the upper wall 3 and the lower wall 4 are bent to face each other above and below the strip-shaped side wall 2 to form a U-shaped cross section. The holding portions 5 and 6 for supporting the body portion 8 of the nail 7 are provided at opposing positions of the lower wall 4 and the lower wall 4 at regular intervals in the length direction so as to open at the leading edges of the upper wall and the lower wall 4, respectively. It is structured.

The nail 7 is inserted by pushing the head portion 9 side of the body portion 8 into the holding portion 5 of the upper wall 3 and the tip end side into the holding portion 6 of the lower wall 4 from a slightly narrowed opening portion to insert the tape 1. Will be held at.

[Problems to be solved by the device]

By the way, since the conventional tape 1 is formed by bending a synthetic resin band-shaped thin plate into a U-shaped cross section, the upper wall 3 and the lower wall 4 are in a state in which they can be freely expanded, and during the transportation and work of the connecting nails. When external pressure is applied to the nail 7 held by the tape 1 toward the side wall 2 inside, the upper wall 3 and the lower wall 4 are pushed open.

As described above, when external pressure is applied to the side wall 2 side of the nail 7, since the head 9 is in contact with the upper wall 3, the escape of the upper wall 3 in the expanding direction is prevented, and the upper wall 3 is prevented. The holding of the body portion 8 by 3 is maintained.

On the other hand, the lower wall 4 is free to escape in the expansion direction,
Due to the external pressure applied to the nail 7, the lower wall 4 slips and tilts toward the tip side of the body portion 8, the holding portion 6 separates from the body portion 8, and the tip side of the body portion 8 falls off the tape 1, There is a problem that nailing with a hammer is impossible.

Further, as a means for preventing the body portion 8 from falling off from the lower wall 4, it is conceivable to insert the nail 7 into the holding portion 6 and then bond the lower wall 4 and the body portion 8 with an adhesive. It is uneconomical because it takes time and labor to apply the agent, and the application cost is high.

Therefore, an object of the present invention is to solve the problems as described above by providing a tape of a connecting nail capable of reliably preventing the nail from falling off without causing tilting due to slip of the lower wall even when external pressure is applied to the nail. To provide.

[Means for Solving the Problems]

In order to solve the above problems, the first invention is to provide an upper wall and a lower wall that project toward the same plane above and below the side wall,
A circular nail holding portion is provided on each of the upper wall and the lower wall so as to open at the leading edges of the upper wall and the lower wall, and an arcuate wall along the periphery of the nail holding portion is provided on at least the lower wall of the upper wall and the lower wall. Is adopted.

The second invention adopts a configuration in which the arcuate wall is formed integrally with the upper wall or the lower wall by bending the periphery of the hole punched for forming the nail holding portion to one surface side. Is.

[Action]

The nail inserted into the tape is held by the holding portion of the upper wall on the head side of the body and by the holding portion of the lower wall on the tip side of the body.

Since the lower wall is provided with an arcuate wall around the holding part, the part that supports the nail on which the external pressure is applied to the side wall becomes vertically long, and therefore when the external pressure on the side wall is applied to the nail, it is curved. Since it can be supported by the wall, it is possible to prevent the lower wall from tilting downward, maintain the holding state of the trunk portion front end side by the lower wall holding portion, and reliably prevent the nail from falling off.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5 of the accompanying drawings.

As shown in the figure, the tape 11 is made of a synthetic resin thin plate, and the upper wall 13 and the lower wall 14 are bent toward the upper surface of the strip-shaped side wall 12 and the lower wall 14 so as to face each other in the same direction.
A circular holding portion 15 for holding the head portion 9 by the body portion 8 of the nail 7 is provided at a constant interval in the length direction so as to open at the tip edge of the upper wall 13, and each holding portion 15 is also provided. A notch 16 extending from the leading edge toward the side wall 12 is provided at a position between them.

The lower wall 14 has a circular holding portion 17 for holding the tip side position of the body portion 8 of the nail 7 at a position corresponding to each holding portion 15 of the upper wall 13 at regular intervals in the longitudinal direction. A notch 18 is provided so as to open at the tip edge of 14, and a position between the holding portions 17 extends from the tip edge toward the side wall 12.

The holding portions 15 and 17 provided on the upper wall 13 and the lower wall 14 vertically face each other, and the circular hole 1 into which the body portion 8 is elastically fitted.
9 shows an example formed by a combination of 9 and the introduction notch 20 which is continuous from the circular hole 19 and expands outward.

In FIGS. 1 to 3, an arcuate wall 21 is provided upright along the periphery of the holding portion 17 on the upper surface side of the lower wall 14.

In the illustrated case, the arc-shaped wall 21 is provided along the entire circumference of the circular hole 19, but it may be provided in the range of a half circumference or more around the circular hole 19 on the side wall 12 side.

4A to 4C show a process of processing the arcuate wall 21 provided on the lower wall 14. First, as shown in FIG. 4A, the receiving mold 31 and the small-diameter punch 32 are provided at a fixed position on the lower wall 14 rather than the circular hole 19. The small-diameter pilot hole 33 is punched out, and then, as shown in FIG. When pushed into the forming hole 36, as shown in FIG. 4c, a circular hole 19 having the same outer diameter as the expanding punch 35 and an arcuate wall 21 around the hole can be simultaneously formed, whereby the arcuate wall 21 and the lower wall 14 are formed. It will be integrally molded with the same material.

The height of the arc-shaped wall 21 can be changed by selecting the diameter of the pilot hole 33.

The arc-shaped wall 21 is not only the upper surface of the lower wall 14 but also the lower wall 14
5a to 5d show a specific example of the portion where the arcuate wall 21 is provided.

FIG. 5a shows an example in which the arcuate wall 21 is provided on the upper surface of the lower wall 14,
FIG. 5b shows an example in which the lower wall 14 is protruded from the lower surface, and FIGS. 5c and d show an example in which an arcuate wall 21 is added to the lower surface side of the upper wall 13 in addition to FIGS. 5a and 5b. Is shown.

The tape of the present invention has the above-mentioned structure, and the method of use will be described based on the examples shown in FIGS.

As shown in FIG. 2, the head 8 side of the body 7 of the nail 7 is attached to the upper wall 1
By inserting the holding portion 15 of No. 3 and the tip side into the holding portion 17 of the lower wall 14, the nails 7 are held by the tape 11 at regular intervals to form a connecting nail.

When an external pressure is applied to the side wall 12 on the nail 7 held by the tape 11, the upper wall 13 and the lower wall 14 support this.

At this time, the upper wall 13 is prevented from tilting in the expanding direction by contact with the head 9.

Further, in the lower wall 14, the body portion 8 pushed by the external pressure is supported by the inner end side of the holding portion 17, but at this time, the body portion 8 is also supported by the arcuate wall 21 protruding toward the upper surface side. The support range of the body portion 8 is extended above the upper surface of the lower wall 14.

As described above, when the lower wall 14 supports the nail 7 to which the external pressure is applied toward the side wall 12, the lower wall 14 tries to rotate downward with the bending point a with the side wall 12 as a fulcrum.

However, when the arcuate wall 21 is provided on the upper surface of the lower wall 14 to provide a portion for supporting the body portion 8, this supporting portion is provided on the lower wall 1.
Since it is located above the bending point a with the side wall 12 of 4, the lower wall 14 is rotated upward.

Therefore, the force to expand the lower wall 14 downward,
The forces that try to rotate the lower wall 14 upward are balanced, and the lower wall 14 will not slip to the tip side of the body portion 8.

Therefore, the lower wall 14 can maintain the holding state of the body portion 8, and the nail 7 does not drop off from the tape 11 and continuous nailing is possible.

The above is the case where the arcuate wall 21 is provided on the upper surface of the lower wall 14, but the arcuate wall 2 is formed on the lower surface side of the lower wall 14 as shown in FIG.
When 1 is projected, the contact between the lower wall 14 and the body portion 8 becomes longer in the axial direction of the body portion 8. Therefore, even if external pressure acts on the body portion 8 toward the side wall 12 side, It is possible to prevent bending of the wall 14.

As shown in FIGS. 5c and 5d, the arc-shaped wall 2 is formed on the lower surface of the upper wall 13.
Protrusion of No. 1 can prevent the upper wall 13 from bending for the same reason.

〔effect〕

As described above, according to the present invention, the circular retaining portions for the nails are provided on the upper wall and the lower wall, and the arcuate wall is provided at least around the retaining portion on the lower wall. Contact of the nail becomes longer in the axial direction of the body, and even if external pressure is applied to the nail toward the side wall, slipping of the lower wall toward the tip of the body can be prevented by the arc-shaped wall, causing the nail to fall off. It is possible to prevent nailing and continuous nailing by a nailing machine.

[Brief description of drawings]

FIG. 1 is a perspective view showing a tape according to the present invention, FIG. 2 is a vertical sectional side view showing a nail holding state of the same, FIG. 3 is an enlarged plan view of a nail holding portion, and FIGS. 5A to 5D are explanatory views showing the positional relationship between the tape and the arcuate wall provided on the tape, and FIG. 6 is a perspective view showing the conventional tape. 11 ... tape, 12 ... side wall, 13 ... upper wall, 14 ... lower wall, 15,17 ... holding part, 21 ... arced wall.

Claims (2)

[Scope of utility model registration request] 1. An upper wall and a lower wall projecting toward the same plane side are provided on the upper and lower sides of a side wall, and circular nail holding portions are opened in the upper wall and the lower wall at the leading edges of the upper wall and the lower wall, respectively. And a tape for connecting nails, wherein arcuate walls are provided along at least one of the upper wall and the lower wall along the circumference of the nail holding portion. 2. The arc-shaped wall is formed integrally with the upper wall or the lower wall by bending the periphery of the hole punched for forming the nail holding portion to one surface side. Interlocking nail tape.