JP2001124031A - Set of nails - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a set of nails serviceable with a conventional nailing machine, capable of lessening the frequency of metal wire sputtering when nail is to be driven, and managing without heightening of the coupling cost. SOLUTION: The set of nails is arranged so that a number of nails provided at one-side end with a head having an enlarged diameter are laid at a certain spacing so that their shanks are parallel and coupled together by a long stretching coupling member, wherein the coupling member is composed of a coupling tape consisting of a wide plastic tape for coupling together the nail heads and a flexible metal wire welded to the shanks apart from their heads toward the respective tips.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for maintaining shafts parallel to one another, which is suitable for use in, for example, a power nailer driven by compressed air. Related to a set of nails made.

[0002]

2. Description of the Related Art A nail used in a power nailing machine driven by compressed air or the like has a long metal wire attached to a shaft portion arranged in parallel at a predetermined interval at two places along a nail axis. Mainly used are wire connecting nails which are welded and connected, and sheet connecting nails which are connected to a holding piece formed by bending the upper and lower side edges of a plastic sheet by engaging the shank of the nail at regular intervals. In a power nailing machine, a connecting nail is loaded into a magazine, a connecting nail is sequentially supplied from the magazine to an ejecting unit by a nail supply mechanism, and a nail driven to the ejecting unit is driven by a driver driven by a piston or the like, and the nail is supplied to a workpiece. . In the wire connecting nail, the metal wire is broken between the nail supplied to the injection unit and the succeeding nail, and the broken pieces of the wire are buried in the material to be driven while being attached to the leading nail. In the sheet connecting nail,
When the leading nail supplied into the injection port is driven out by the driver, the nail is detached from the connecting band, and the empty connecting band is continuously discharged from a discharge window formed in front of the injection unit. Some nailing machines are configured such that a nail feeding mechanism can also be used so that either of the two types of connecting nails can be used.

[0003]

In a wire connecting nail connected by a metal wire, when the nail is driven by a nailing machine, the metal wire is broken and the leading nail is detached from the following connecting nail. A part of the connecting wire may come off from the nail shaft and be scattered around when it is launched from the nose of the nailing machine, which is scattered on the floor surface etc., causing the floor surface to be damaged. . In a dual-purpose machine that can be used together with the wire connecting nail and the sheet connecting nail, there is an increasing tendency that cut pieces of the metal wire are scattered from the window for discharging the plastic connecting body. On the other hand, sheet connecting nails require a large amount of plastic material because a plastic sheet is bent so that its cross section has a U-shape, which increases the cost of the connecting body itself. However, there is a problem in that the disposal of the remaining part of the linked body is costly.

The present invention solves the above-mentioned drawbacks of the prior art, and can be used with a conventional nailing machine, which reduces the frequency of scattering of a metal wire at the time of driving a nail, and reduces the frequency of nailing. An object of the present invention is to provide a nailed connector that does not increase the cost for connecting and the cost of discarding the remaining connecting material.

[0005]

According to a first aspect of the present invention, a plurality of nails each having an enlarged head at one end are provided at predetermined intervals so that the nail axes are parallel to each other. In a nail connector in which adjacent nails are connected side by side, and adjacent nails are connected by a long connecting member, the connecting member includes a connecting tape made of a wide plastic tape connecting the head side of each nail; The nail is characterized by being constituted by a flexible metal wire welded to a shaft portion remote from the head of the nail toward the tip side. The invention according to claim 2 is characterized in that the upper surface of the head of each nail is adhered and held on one side of the connecting tape connecting the head side of each nail. Also,
A third aspect of the present invention is characterized in that the connecting tape of the second aspect has a property of being easily disconnected in a direction perpendicular to the connecting direction of the nails. Further, the invention of claim 4 is
The connecting tape according to claim 1, wherein the connecting tape is formed of a long elastic plastic sheet, is formed at equal intervals along the longitudinal direction of the sheet, and is released toward one side edge of the sheet. And a shaft portion close to the head of each nail is fitted and held in the opening.

[0006]

According to the present invention, since the connecting portion of the metal wire is formed only on the tip end side of the nail shaft, the amount of fragments of the metal wire scattered around is smaller than that in the conventional case where the metal wire is used in the upper and lower two places. And the danger of damaging the floor material and the like by the cut pieces of the metal wire is reduced. In addition, since the nail head side is connected with plastic tape, the amount of plastic material used is less than that of conventional plastic sheet connection, reducing production costs and reducing the cost of processing the remaining connection material. be able to. According to the invention of claim 2, since the upper surface of the nail head is covered with the connecting tape, and the nail head is not directly hit by the driver of the nailing machine, the nail head is coated with a decorative nail or the like. The driver does not peel off the paint during installation. Also
According to the third aspect of the invention, when the first nail is driven by the driver of the nailing machine, the connecting tape can be easily cut between the first nail and the succeeding nail. According to the method, the connecting tape is arranged on the lower shaft portion of the nail head and the nail shaft portion is engaged with the holding portion opened at one side edge of the connecting tape, so that the nail is driven in the stroke. It is possible to prevent fragments of the connecting tape from being detached from the nail shaft and remaining pieces of the tape from adhering to the nail head.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments shown in the drawings. FIGS. 1 and 2 show a nail connector 1 according to a first embodiment of the present invention, in which a large number of nails N are arranged at equal intervals along the connection direction so as to keep their shaft portions 2 parallel. A long connecting tape 4 is adhered to the upper surface of the head 3 of the nail N. A metal wire 5 is bonded to the shaft portion 2 of the nail away from the head 3 by welding, and the nails N are maintained at a distance from each other by the tape 4 and the metal wire 5. The connecting tape 4 is made of a long plastic sheet, and is adhered to the upper surface of the nail head through an adhesive means 6 such as an adhesive applied to the lower surface of the sheet 4. Further, the connecting tape 4 is made of a plastic material that is stretched in a direction perpendicular to the longitudinal direction, so that cutting between the adjacent nails N can be easily performed.

In the nail connector 1 of the above embodiment, a metal wire 5 is electrically connected to the nail shaft 2 on an index roll having grooves formed in the outer peripheral surface at regular intervals to accommodate the nail shafts 2 of the aligned nails N. After welding by welding or the like, manufacturing is possible by pressing a connecting tape 4 coated with an adhesive material on one side to a nail head 3 which is separated from the index roll and conveyed linearly. Further, the bonding between the connecting tape 4 and the nail head 3 may be performed by supplying another adhesive between the connecting tape 4 and the nail head 3 or by heating the connecting tape formed of thermoplastic plastic. It may be bonded by contacting and melting the portion.

In the above embodiment, a plastic tape whose width in the width direction is set slightly larger than the diameter of the nail head 3 is used as the connecting tape 4. By connecting with a tape set smaller, the nail connector 1 may be wound in a coil shape. In addition, V-shaped notches or cuts are formed on both side edges of the connecting tape 4 between the nails N, so that the nail connecting body 1 can be easily wound in a coil shape, and the connecting tape 4 at the time of nail driving is formed. Can be easily cut.

Further, as a material of the connecting tape 4, a plastic material which has been subjected to a stretching operation in a uniaxial direction and has at least a uniaxial orientation is used, and a direction weak to a tensile load coincides with a longitudinal direction of the tape. It is also possible to use the one configured to cause this. This makes it easier to cut the connecting tape 4 with the following nail N when the leading nail N supplied into the injection port of the nailing machine is hit and driven out by the driver. Power loss of the nailing machine due to the cutting resistance of the nail can be prevented.

Each nail N of the nail connector 1 connected as described above
The distance between the nail shafts 2 is maintained by the rigidity of the metal wire 5 so that the normal connection state is not disturbed even when the nail is loaded in the magazine of the nailing machine, and even when the nailing machine is supplied by the feeding mechanism. The nail shafts 2 are supplied while maintaining a parallel relationship with each other. The first nail N supplied by the feeding mechanism of the nailing machine into the injection opening of the nailing machine is held at an appropriate position in the injection opening by the second nail N being supported by the feeding claw of the feeding mechanism. . When the leading nail N is hit on the head by the driver of the nailing machine, the connecting tape 4 and the metal wire 5 are broken between the second nail N and the leading nail N
Is released from the connected state and is driven into the driven material by the driver.

A part of the connecting tape 4 and a part of the metal wire 5 are punched out from the injection port while being attached to the leading nail N to be driven, and a fragment of the metal wire 5 welded to a position below the nail shaft part 2 is a nail shaft. It is driven into the material to be driven in a state of being bent upward along 2. The cut pieces of the connecting tape 4 remain attached to the nail head 3 and can be removed after nailing. Since the driver of the nail driver does not directly contact the nail head 3 when hitting the leading nail N, it is possible to avoid, for example, removing the color coating applied to the nail head 3 by the driver.

Next, a nail connecting body 10 according to a second embodiment of the present invention shown in FIGS. 3 and 4 has a connecting structure using a metal connecting wire 5 at the tip end of the shaft portion 2 of the nail N. This is exactly the same as the embodiment. As the connecting tape 7 connecting the nail heads 3 according to this embodiment, an elastic plastic tape is used. Openings 8 for receiving the nail shafts 2 are formed at equal intervals in the longitudinal direction at the center in the width direction of the tape, and the openings 8 are continuous with slots 9 formed on one side edge of the tape. The nail shaft 2 can be received into or removed from the opening 8 through the opening. The opening 8
Is formed to be the same as or slightly smaller than the diameter of the nail shaft 2, and the width of the slot 9 is formed to be smaller than the diameter of the nail shaft 2.
In the connected state, the nail shaft 2 is fitted and held in the opening 8 on the lower surface side of the head 3 of each nail N.

In order to form the nail connecting body 10 of the above embodiment, a process of supplying and welding a metal connecting wire 5 to an index roll for conveying the nails N in an aligned state is performed along the tangential direction of the index roll. By supplying the connecting tape 7 and pressing the shaft portion 2 of the nail N on the index roll toward the slot 9 of the connecting tape 7, the nail shaft 2 is pushed into the opening 8 of the connecting tape 7 and connected. Is possible. Each nail N fitted into the opening 8 is connected to the connecting tape 7.
The head 3 is securely held by the elasticity of the head.

The nail connector 10 of the second embodiment has a nail shaft against the elasticity of the connecting tape 7 when the leading nail N supplied into the injection port of the nailing machine is hit by a driver. 2
Is detached from the connecting tape 7 through the slot 8 through the slot 9, so that the remaining connected portion of the connecting tape 7 can be collected outside the nailing machine in a continuous state, and the workplace can be cut with the cut off debris. Scattering is avoided. Furthermore, in this case, it is not necessary to increase the size of the discharge hole for discharging the remaining portion of the connection unlike the conventional nailing machine, so that the cut pieces of the metal wire 5 from the discharge hole can be prevented from scattering.

In each of the first and second embodiments, each nail N
Is disclosed in which the shaft portions 2 are arranged at right angles to the connection direction, but it is also possible to connect the shaft portions 2 of the nails N while being inclined with respect to the connection direction. In this case, since the nail N is supplied in a vertical state, the rear side in the connecting direction of the nail is lifted upward, and the nail driving operability by the nail driver is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a nail connector according to a first embodiment of the present invention.

FIG. 2 is a longitudinal side view of the same embodiment as FIG.

FIG. 3 is a perspective view showing a nail connector according to a second embodiment of the present invention;

FIG. 4 is a longitudinal sectional side view of the same embodiment as FIG. 3;

[Explanation of symbols]

 N Nail 1 Nail connection body (first embodiment) 2 Shaft 3 Head 4 Connection tape 5 Connection wire 6 Bonding means 7 Connection tape 8 Opening 9 Slot 10 Nail connection body (Second embodiment)

Claims (4)

[Claims] 1. A large number of nails having an enlarged diameter head at one end side are arranged in parallel at a predetermined interval so that respective nail axes are parallel to each other, and adjacent nails are connected by a long connecting member. In the nail connector, the connecting member may be welded to a connecting tape made of a wide plastic tape connecting the head sides of the nails, and to a shaft portion remote from the head of each nail to the tip side. A nail connector comprising a flexible metal wire. 2. The nail according to claim 1, wherein the upper surface of the head of each nail is adhered and held on one side of a connecting tape connecting the head side of each nail. Concatenation. 3. The connecting tape connecting the heads of the nails has a property that the nails are easily disconnected in a direction perpendicular to the connecting direction of the nails. A nail connector according to claim 1. 4. A connecting tape connecting the head sides of the nails is made of a long elastic plastic sheet, formed at equal intervals along the longitudinal direction of the sheet, and 2. The shaft according to claim 1, further comprising a shaft holding opening released toward one side edge, wherein a shaft near a head of each nail is fitted and held in the opening. A nail connector according to any of the preceding claims.