JPH0716013U - Connection fastener - Google Patents

Abstract

(57) [Summary] [Structure] A plurality of fasteners 3 are adhered to one surface of a tape-shaped connecting member 1 made of paper with a hot melt adhesive 2 at a constant angle at equal intervals, and the connecting member 1 2 are arranged in parallel, and the width of each connecting member 1 is set to 2 to 15 mm. [Effect] Since the flexibility and elasticity that allow the twist to the extent that the shaft portion can be arranged on the hourglass-shaped one-leaf hyperboloid is provided between the connection member 1 and the shaft portion of the fastener 3, the long connection member 1 can be obtained. A large number of fasteners 3 can be connected and the connected fasteners can be wound in a coil shape, and deformation between the fasteners 3 can be prevented to improve the feeding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connecting fastener formed by connecting a plurality of fasteners on top.

[0002]

[Prior art]

 Generally, a connecting fastener is formed by connecting a plurality of fasteners such as nails to a connecting material, but a connecting wire made of metal or synthetic resin is often used as the connecting material.

When connecting with a metal wire, each fastener is welded to the wire. Although this connection method is low in cost, a part of the metal wire may be scattered during driving because the wire is broken at the time of driving and the next fastener is broken. There is a problem that is accompanied by danger.

Further, there is also a method in which a synthetic resin sheet is used as a connecting material and a fastener is adhesively connected to the sheet. Although this is less dangerous than metal wires, it is an environmental problem because the scattered synthetic resin pieces cannot be burned and are discarded.

Further, there is also a method of connecting fasteners with a connecting band made of synthetic resin. The fastener is held in a hole formed in the tubular connecting strip. Since each fastener is driven separately from the connecting belt when driving, there is no danger of danger. However, the structure of the connecting belt is complicated, and the cost is high because the material is used in a relatively large amount. In addition, the used connecting belt is discarded, which poses problems of resource saving and environmental protection.

As a countermeasure for this, there is known a connecting fastener in which a plurality of fasteners are adhesively connected to a connecting material (see Japanese Patent Publication No. 3-7789).

However, since the connecting member is formed into a sheet shape, it cannot be wound up, and the connecting fastener has to be formed in a straight state as a whole. Therefore, it can only be used for so-called straight magazine type nailing machines. As described above, in the conventional connection structure, the number of fasteners per connection is small, and a large number of fasteners cannot be connected, which makes it difficult to use the machine.

[0008]

[The purpose of the device]

 SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a connecting fastener that uses a paper connecting member and can connect a large number of fasteners.

[0009]

[Means for achieving the purpose]

 In order to achieve the above-mentioned object, the connection fastener according to the present invention has a plurality of fasteners bonded at regular intervals to one surface of a paper tape-shaped connecting material with a hot-melt adhesive. The above-mentioned connecting member is characterized in that two connecting members are arranged in parallel and each connecting member has a width of 2 to 15 mm.

[0010]

[Action]

 When the fastener having the above structure is wound into a coil, the shaft portion of the fastener is arranged on a drum-shaped hyperboloid. Then, the connecting material between the fasteners is twisted.

[0011]

【Example】

 FIG. 1 shows a connecting fastener. The connecting fastener is formed by adhering a plurality of fasteners 3 at regular intervals to one surface of a tape-like connecting member 1 with a hot-melt adhesive 2 at regular intervals.

The connecting member 1 may be made of paper and have an appropriate rigidity.

The hot-melt adhesive 2 has a property that it becomes a fluid paste when heated and melted and solidifies when cooled to room temperature, and is characterized in that it adheres in an extremely short time. , Rosin and its derivatives, polyvinyl acetate, ethylene-vinyl acetate copolymer, polyamide, phenoxy resin, ethyl cellulose, polyisobutylene, petroleum resin, polyester, etc., either alone or in combination. The hot-melt adhesive used for connecting fasteners is mainly composed of ethylene-vinyl acetate copolymer, considering that it has appropriate viscosity in the operating temperature range of the cost and fastener. It is preferable to use additives such as paraffin and paraffin.

When a fastener is bonded via a hot-melt adhesive, as shown in FIG. 2 (a), the hot-melt adhesive 2 is heated and melted in advance and applied onto the paper connecting material 1 and then at room temperature. The adhesive 2 and the fastener 3 may be cooled to be in a solid state, and the adhesive 2 and the fastener 3 may be heated by a heater, the fastener 3 may be bonded to the adhesive 2, and then the adhesive 2 may be cooled to room temperature. The hot melt adhesive 2 may be spotted on the fastener 3 as shown in FIG.

By the way, the connecting member 1 has two threads arranged in parallel, and each connecting member 1 has a width of 2 to 15 mm. The reason is as follows.

When a large number of fasteners 3 are obliquely connected to the long connecting material 1, it is necessary to wind the whole into a coil shape in order to load the nailing machine. However, when such a connecting fastener is wound into a coil, the connecting member 1 between the fasteners 3 is twisted as shown in FIG. 3, and the shaft portion of the fastener 3 is arranged on a drum-shaped hyperboloid. It will be. Therefore, a property that allows this twist, that is, some flexibility and elasticity, is required between the connecting member 1 and the shaft portion of the fastener 3.

The connecting fastener loaded in the nail driving machine is unwound and supplied straight to the driving section of the nail driving machine. In the straight state, the parallelogram formed between the two fasteners 3 is in parallel. It is necessary to maintain the shape S of. That is, when the connecting member 1 is deformed in the axial direction of the fastener 3 as shown by the arrow in FIG. 1 (the parallelogram shape is deformed), the space between the fasteners 3 and the parallelism are not maintained, so that the shaft portion thereof is not maintained. Is not able to properly engage with the feed claws provided in the feed mechanism of the nail driver, resulting in feed failure. Therefore, the connecting member 1 is required to have such strength that it cannot be deformed in the axial direction of the fastener 3.

By the way, in order to connect and hold the fasteners 3 in a parallel state, a structure in which they are held by two parallel connecting members 1 is sufficient. Further, if the line width of the connecting material 1 is set to 2 mm or less, the strength of the connecting material 1 is weak, the deformation between the fasteners 3 cannot be prevented, and the feeding failure occurs. When the width of the connecting member 1 is 15 mm or more, the rigidity of the connecting member 1 becomes too strong, twisting between the fasteners 3 is not allowed, and the connecting fastener cannot be wound into a coil. This is the reason why the dimensions of the connecting member 1 are limited.

The two connecting members 1 are preferably provided above and below the center of the three shaft parts of the fastener. If, for example, a notch 4 is formed between the fasteners 3 in the connecting member 1, it will be cut between the fasteners 3 of the next position at the time of driving and will not affect the driving of the fasteners 3 of the next position. .

In addition, when the connecting fastener having the above-mentioned structure is driven, a part of the paper base material is broken, but it is safe because it does not scatter, and it can be burned even if scattered at the work site. Little risk of contamination. In addition, the cost of connecting the paper base material and the hot-melt adhesive 2 is low.

[0021]

【effect】

 Since the connecting fastener of the present invention connects the fasteners in a state where two connecting members are parallel to each other, the parallelism of the fasteners is maintained. Also, the fastener width is set to 2 to 15 mm so that the fastener can be held, so that the shaft can be arranged on the drum-shaped one-leaf hyperboloid between the connector and the fastener shaft. The flexibility and elasticity that allow the twisting of the fasteners are obtained, the connected fasteners can be wound in a coil shape, and the deformation between the fasteners can be prevented to improve the feeding.

[Brief description of drawings]

FIG. 1 is a front view of a connecting fastener according to the present invention.

2 (a) and 2 (b) are cross-sectional views of a case in which a fastener is adhered onto a connecting member via an adhesive layer and a case in which a fastener is spotted on the connecting member 1, respectively.

FIG. 3 is a perspective view schematically showing a state in which the connecting fastener is wound.

[Explanation of symbols]

 1 Connecting material 2 Hot melt adhesive 3 Fastener

Claims (1)

[Scope of utility model registration request] 1. A connecting fastener in which a plurality of fasteners are bonded at equal intervals on a connecting material in which a hot-melt adhesive is layered on one surface of a tape-like connecting material made of paper. A connecting fastener characterized in that two connecting members are arranged in parallel, and each connecting member has a width of 2 to 15 mm.