JP2003172324A - Connecting fastener and connecting belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify manufacturing process of a connecting fastener, cleaning at a working site and to prevent damage to a floor plate due to working by maintaining straight advancing property of the fastener during driving the fastener. <P>SOLUTION: This connecting fastener has craft paper 5 of connecting belts 3 for retaining a number of nails 2 stuck on both surfaces of the nail 2 and a plurality of grooves 7A, 7B promoting separation of the nail 2 formed on a plastic layer 6 of the craft paper 5 at a pitch smaller than an arrangement pitch of the nail 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting fastener that is loaded into a fastener driving machine that drives a fastener such as a nail or a screw.

[0002]

2. Description of the Related Art Conventionally, wire connecting nails (see Patent Document 1) and paper connecting type nails (see Patent Document 2) are known as techniques for connecting fasteners loaded into a fastener driving machine. The wire connecting nail is a nail in which a large number of nails arranged in parallel are connected by a wire, the nails are integrally fixed to each other by a wire, and a cut is provided in a wire portion between the nails. .

Further, there is known a connecting nail in which a holding portion is held on the upper and lower portions of the nail, and the holding portion is provided with a thick portion and a thin portion, and the thin portion is made brittle (see Patent Document 3). ing.

[0004] Further, there is known a paper connection type nail (see Patent Document 4) in which a large number of nails arranged in parallel are sandwiched between a pair of papers and a perforation is formed in the paper portion between the nails. There is.
Further, Patent Document 5 is known.

[0005]

[Patent Document 1] Japanese Utility Model Laid-Open No. 4-119615

[Patent Document 2] JP-A-11-216686

[Patent Document 3] Japanese Utility Model Laid-Open No. 59-175707

[Patent Document 4] Japanese Patent Laid-Open No. 11-216686

[Patent Document 5] Japanese Patent No. 2888320

[0006]

However, in the case of the wire connecting nail disclosed in Japanese Utility Model Laid-Open No. 4-119615, when the nail is driven by the nail driving machine, the wire portion scatters and scatters on the construction floor surface. I step on this wire part and slip,
In addition to scratching and soiling the construction floor surface, attention was required to clean the scattered fragments of the scattered wires after construction.

The connecting nail disclosed in Japanese Utility Model Laid-Open No. 59-175707 holds the nails together by the holding portion. When the nail is driven into the floor plate or the like by the nail driving machine, the holding portion holds the lower portion of the nail. If the nail is not easily broken, when the impact of the driver of the nail driving machine is applied, the lower portion of the nail is dragged by the holding portion and tilted, and the nail is struck at an angle.

The paper connection type nail disclosed in Japanese Unexamined Patent Publication No. 11-216686 has the purpose of preventing the inclination of the nail of the connection nail disclosed in Japanese Utility Model Laid-Open No. 59-175707 and is proposed by the applicant of the present application. However, in the case of forming perforations on the paper that connects the nails and nails, if the perforations are accurately formed on the paper between the nails after sandwiching the nails between the paper It turned out that it takes extra time and effort.

The connecting fastener according to the present invention has been made in view of the above circumstances, and when the fastener such as a nail or a screw is driven, the straightness of the fastener is ensured and the manufacturing process of the connecting fastener is simplified. And
The purpose is to simplify cleaning at the construction site and prevent damage to the floorboard during construction.

[0010]

In order to solve the above-mentioned problems, a connecting fastener according to claim 1 of the present application is a connecting fastener in which a plurality of fasteners are held in parallel to a connecting band, wherein the connecting band is an adhesive layer. It is made of either paper or resin having, and is affixed to at least one surface side of the fasteners that are arranged in parallel, and the connecting band extends from the upper portion of the rear fastener to the lower portion of the front fastener. In addition, a plurality of separation promoting means for promoting separation of the fasteners are formed at a pitch smaller than the arrangement pitch of the fasteners.

The connecting fastener according to claim 2 of the present application is the connecting fastener according to claim 1, wherein the separation promoting means is:
It is characterized by comprising at least one of a notch, a perforation, a slit, and a thin portion.

The connecting fastener according to claim 3 of the present application is the connecting fastener according to any one of claims 1 and 2, wherein
The connection band is bonded to at least one of an upper portion, an intermediate portion and a lower portion of the arranged fasteners.

The connecting fastener according to claim 4 of the present application is the connecting fastener according to any one of claims 1 to 3, wherein the connecting bands are bonded to both front and back side surfaces of the arranged fasteners in pairs. At the same time, the separation promoting means is formed on a plastic layer of the connecting band to which the fastener is adhered.

The connecting fastener according to claim 5 of the present application is the connecting fastener according to any one of claims 1 to 4, wherein the separation promoting means has an inclination angle of 3 ° to 6 ° with respect to the axial direction of the fastener. It is characterized by having.

The connecting fastener according to claim 6 of the present application is the connecting fastener according to any one of claims 1 to 4, wherein the separation promoting means between the front and rear fasteners in the connecting belt is connected to the front fastener. It is characterized in that the inclination angle of the line connecting the intersection of the lower end of the belt and the intersection of the fastener on the rear side and the upper end of the connecting belt is formed as the maximum inclination.

Further, in the joint fastener of claim 7, a plurality of fasteners having a shaft of a predetermined length and having a head to be a hit portion at the upper end of the shaft are arranged in parallel and at equal intervals, and the arrangement is performed. A coupling fastener formed in a flat plate shape by coupling the shafts of the respective fasteners with a coupling band, wherein the coupling band is formed on one side of a base material formed of paper or a material that does not melt within a predetermined temperature. A tape-shaped member having a predetermined width provided with an adhesive layer having an adhesive action at a predetermined temperature, wherein each of the fasteners has a predetermined position lower than the longitudinal center of the shaft, or a predetermined position and an upper end of the lower side. It is characterized in that it is adhered to the connecting band both in the vicinity.

Further, the connecting fastener according to claim 8 is the connecting fastener according to claim 7, wherein the connecting band adhered at a predetermined position at least below the longitudinal center of the shaft has the flat plate shape. It is characterized in that it is provided on both front and back surfaces of the formed connecting fastener.

The connecting fastener according to claim 9 is the connecting fastener according to claim 1, 7 or 8,
In the adhesive layer of the connecting band, at least one fragile portion is provided at a position between the shafts of the fasteners arranged at equal intervals in a direction from the upper portion of the rear fastener to the lower portion of the front fastener. It is characterized by being.

The invention according to claim 10 is a connecting band for forming a flat plate by connecting a plurality of fasteners each having a shaft of a predetermined length and a head to be a hit portion at the upper end of the shaft. A base material formed of a tape having a predetermined width and formed of paper or a flexible material that does not melt at a predetermined temperature, and an adhesive layer having an adhesive action at the predetermined temperature on one side surface of the base material. The adhesive layer is provided with a fragile portion formed by a plurality of cuts, perforations, slits, thin-walled portions and the like across the width direction.

The invention according to claim 11 is the same as claim 1.
The connecting band according to 0, wherein the fragile portion is provided at a predetermined angle with respect to the width direction of the connecting band.

The invention according to claim 12 is the same as claim 1
The connection belt according to 0 or 11, wherein the width is about 10 mm,
The adhesive layer has a thickness of about 0.3 mm.

[0022]

DETAILED DESCRIPTION OF THE INVENTION A connecting fastener according to an embodiment of the present invention will be described below with reference to the drawings. Note that the fastener described below will be described as including a nail and a screw.

FIG. 1A is a partially enlarged view of a connecting nail as a connecting fastener according to the first embodiment of the present invention. This connecting nail 1 is a plate-shaped connecting nail, and this connecting nail 1 is held and loaded in the body portion of a nail driving machine 8 as a fastener driving machine shown in FIG. And is sent in the direction of arrow A. The connecting nail 1 includes a plurality of fasteners (nail 2, screw 51, etc. described later).
Are arranged in a line at equal intervals, and each fastener is integrally bound by a connecting band 4 described later. Further, the fastener has a shaft portion (shank) that is actually driven into wood or the like (so-called work), and has a flange shape having a diameter larger than the shaft diameter of the shank that is hit by the tip of the driver 9 of the nailing machine 8. Is formed on the upper end of the shank. Also, the tip, which is the lower end of the shank, is sharp.

As an optimal example, the connecting nail 1 according to the present embodiment has a pair of connecting bands 3 and 3 bonded to the lower portion of the nail 2 (lower portion of the shank), and the upper portion of the nail 2 (upper portion of the shank).
The connecting bands 4 and 4 are bonded to each other. Also,
Even in the case of other connecting nails having different shank lengths used for the same nail driving machine 8,
They are provided at substantially the same position (common position) with respect to the position of the shank head. This is because the holding position of the connecting nail in the nailing machine 8 is based on the head position. That is, the connecting belt is brought into contact with a predetermined portion in the loading section (magazine) to maintain the posture when the connecting nail is moved,
This is for engaging a feed claw or the like (not shown) for supplying the fastener with the shank of the portion where the connecting band is not provided.
The connecting bands 3 and 3 and the connecting bands 4 and 4 are, as shown in FIG.
For kraft paper 5, for example, high density polyethylene (HDPE)
A plastic layer 6 having adhesiveness such as is formed as an adhesive layer.

The adhesive layer is prepared by heating and melting a hot melt adhesive and applying it to a paper-made connecting material such as kraft paper 5,
It is formed by cooling to room temperature and becoming a solid state.
Hot melt adhesives are high density polyethylene (HDP
It is made of a thermoplastic resin (plastic) such as E).

The hot melt adhesive is a terpene resin,
Asphalt, rosin and derivatives thereof, polyvinyl acetate, ethylene vinyl acetate copolymer, polyamide, phenoxy resin, ethyl cellulose, polyisobutylene, petroleum resin, polyester and the like are used alone or in combination. High-density polyethylene (HDPE) is desirable from the viewpoint of holding strength of the connecting fastener.

In each of the plastic layers 6 formed on the surface of the kraft paper 5 of the connecting belt 3 and the connecting belt 4, narrow grooves 7A and 7B serving as separation promoting means are parallel to each other at a pitch shorter than the arrangement pitch of the nails 2 and 2. Is formed in. The grooves 7A and 7B extend from the lower part of the front nail 2 toward the upper part of the rear nail 2, and have an inclination of 3 to 6 degrees with respect to the axial direction of the nail 2.

As shown in FIG. 3, when the nailing machine 8 is loaded, the connecting nail 1 is urged from the rear to the front (see FIG. 3).
In the direction toward the left side), it is sent to the lower side of the driver 9 which is the injection path and is on standby. When a trigger (not shown) of the nailing machine 8 is pulled, the driver 9 descends and the nail 2
Is extruded by the driver 9, and the tips of the nails 2 are driven into the joining materials 10 and 11. As mentioned above, the connecting belt 3,
Since the grooves 7A and 7B are formed in the groove 4 and the grooves 7A and 7B are inclined rearward at an angle of 3 to 6 degrees with respect to the axis of the nail 2, especially when the nail 2 is driven, The connecting band 3 is cut so as to be displaced obliquely forward. As a result, the lower end of the nail 2 is prevented from tilting to the right in FIG. 2, so that straightness is improved and the nailing material 10 is driven substantially perpendicularly. Further, the plastic layer 6 is integrally fixed to the kraft paper 5, and the plastic layer 6
Is made of polyethylene, and since polyethylene has flexibility, it does not easily scatter, the worker does not slip during construction, the floor surface is easy to clean, and the floor surface is not easily damaged even when the operator steps on it.

As another example, as shown in FIG. 1 (2), a connecting band 3'may be adhered to a substantially middle portion between the nails 2 and 2. In the plastic layer 6, which is the adhesive layer of the connecting band 3 ', narrow grooves 7A' as separation promoting means are formed in parallel at a pitch shorter than the arrangement pitch of the nails 2,2. The groove 7A ′ extends from the lower portion of the front nail 2 toward the upper portion of the rear nail 2, and has an inclination of 3 ° to 6 ° with respect to the axial direction of the nail 2.

FIG. 4 shows a forming process of the connecting bands 3 and 4.
The connecting belts 3 and 4 to be formed have a plastic layer 6 formed in advance on a kraft paper 5 formed in a belt shape. This plastic layer 6 is heated by the heater 13 to soften it,
Next, the kraft paper 5 is sent out between the groove forming mold 14 and the support roller 15. The groove forming mold 14 has a gear-like shape and forms grooves 7A and 7B in the softened plastic layer 6 of the kraft paper 5. The connecting bands 3 and 4 in which the grooves 7A and 7B are formed are sent to an arranging step for arranging the nails 2 in parallel and attached to the left and right side surfaces of the nails 2. Of course, the kraft paper 5 is provided with a pair of connecting bands 3 and a pair of connecting bands 4 in order to attach the connecting bands 3 and 4 to both side surfaces of the nail 2 at the same time. While the nail 2 is being heated by the heating means, it is attached to both side surfaces of the nail 2 and cut into a predetermined length. Incidentally, the molding method may be another method, and is not limited to this method.

FIG. 5 (1) and FIG. 6 are partial enlarged views of the connecting nail according to the second embodiment of the present invention. Figure 5 (1)
The connecting nail 20 shown in FIG. 6 and the connecting nail 20 shown in FIG. 6 have substantially the same structure as the connecting nail 1 shown in FIG. 1, but a plastic layer 25 is provided inside the kraft paper 24 of the connecting bands 22 and 23 for holding the nail 21. Are formed. The nail 21 is held between the plastic layers 25,25.

Notches 26 and 27 extending obliquely are formed at the upper edge of the kraft paper 24 at a pitch shorter than the arrangement pitch of the nails 21. This notch 26, 27
Has an inclination of about 3 to 6 degrees with respect to the nail 21, and is cut along the notches 26 and 27 when the head of the nail 21 is hit by the driver 9 described above.

The connecting nail shown in FIG. 5 (2) has a notch 26,
Instead of 27, substantially V-shaped notches 28 are formed at a pitch shorter than the arrangement pitch of the nails 21. The direction of the cut 28 is inclined in the same direction as the cuts 26 and 27. Others are the same as those of the connecting nail 20 of FIG. 5A, and thus the description is cited.

In the above embodiment, kraft paper was used as the base material forming the connecting bands 3, 4 and the like as an optimum example, but a plastic film having improved tearability in the width direction is used. Or a sheet may be used. When using such a synthetic resin material, it is necessary that the melting temperature is higher than that of the adhesive layer that melts at a predetermined temperature.

FIG. 5 (3) shows another embodiment of the connecting nail. The connecting nail 20 ′ shown in FIG. 5 (3) has substantially the same structure as the connecting nail 1 shown in FIG.
The plastic layer 25 is formed on the inside of the kraft paper 24 of the connecting belts 22 'and 23' for holding. The nail 21 is held between the plastic layers 25,25.

In this embodiment, unlike the connecting nail 1, perforations 26 'and 27' as separation promoting means are formed on the kraft paper 24 at a pitch shorter than the arrangement pitch of the nails 21. Perforations 26 'and 27' are nails 21
It has an inclination of about 3 to 6 degrees with respect to the connecting band 2 when the head of the nail 21 is hit with the above-mentioned driver 9.
2'and 23 'are cut along perforations 26' and 27 '.

FIG. 7 (1) shows a connecting nail 30 according to the third embodiment of the present invention. The connecting nail 30 includes a pair of left and right connecting bands 32, 3 on both sides at the upper and lower portions of the nail 31.
It has a structure in which 3 is bonded. As the connecting belts 32 and 33, as in the case of the connecting nails shown in FIG. 6, kraft paper as a base material provided with plastic (HDPE) is used. Further, in the present embodiment, the notches 34 having an inclination angle of 3 ° to 6 ° with respect to the axial direction of the nail 31 are formed at the upper and lower edge portions of the upper and lower connecting bands 32, 33.
Are formed respectively.

FIG. 7 (2) shows a connecting nail 35 according to the fourth embodiment of the present invention. The connecting nail 35 includes a pair of left and right connecting bands 37, 3 on each side at the upper and lower portions of the nail 36.
It has a structure in which 8 is bonded. Similar to the case of the connecting nails shown in FIG. 6, the connecting bands 37 and 38 are made of kraft paper provided with plastic (HDPE) as a base material. Then, the upper and lower connecting bands 37, 38
V-shaped notches 39 having an inclination angle of 3 ° to 6 ° with respect to the axial direction of the nail 36 are formed at the upper and lower edges of the nail 36. As shown in FIG. 7 (2), one side forming the V-shaped notch 39 extends coaxially with the nail 36, and the other side forming the notch 39 is 3 ° to 6 ° with respect to the axial direction of the nail 36. It has a tilt angle.

FIG. 8 (1) shows a connecting nail 40 according to the fifth embodiment of the present invention. The connecting nail 40 has a structure in which a pair of left and right connecting bands 42 are bonded to both sides of a substantially intermediate portion of the nail 41. Similar to the case of the connecting nail shown in FIG. 6, the connecting belt 42 is made of plastic (HD
PE) is used. And the connecting belt 42
Notches 43 having an inclination angle of 3 ° to 6 ° with respect to the axial direction of the nail 41 are formed at the upper and lower edges of the nail.

FIG. 8 (2) shows a connecting nail 44 according to the sixth embodiment of the present invention. The connecting nail 44 has a structure in which a pair of left and right connecting bands 46 are bonded to both sides of a substantially middle portion of the nail 45. Similar to the case of the connecting nail shown in FIG. 6, the connecting belt 46 is made of plastic (HD
PE) is used. And the connecting belt 46
V-shaped notches 47 having an inclination angle of 3 ° to 6 ° with respect to the axial direction of the nail 46 are formed at the upper and lower edges of the nail 46, respectively. As shown in FIG. 8 (2), one side forming the V-shaped notch 47 extends coaxially with the nail 41, and the other side forming the notch 47 is 3 ° to 6 ° with respect to the axial direction of the nail 45. It has a tilt angle.

FIG. 9 (1) shows a connecting screw 50 according to the seventh embodiment of the present invention. The connecting screw 50 has a structure in which a pair of left and right connecting bands 52 and 53 are bonded to both upper and lower sides of a screw 51 which is a fastener. In the connecting bands 52 and 53, as in the case of the connecting nails shown in FIG.
A kraft paper with a plastic (HDPE) as a base material is used. Further, notches 54 having an inclination angle of 3 ° to 6 ° with respect to the axial direction of the screw 51 are formed at the upper and lower edge portions of the upper and lower connecting bands 52, 53, respectively.

FIG. 9 (2) shows a connecting screw 55 according to the eighth embodiment of the present invention. The connecting screw 55 is a screw 56.
A pair of left and right connecting bands 57, 58 on each side of the upper and lower parts of the
It has a structure in which The connecting bands 57 and 58 include
As in the case of the connecting nail shown in FIG. 6, the one provided with plastic (HDPE) using kraft paper as a base material is used. The upper and lower connecting strips 57 and 58 are provided at upper and lower end edges with an angle of 3 ° to 6 ° with respect to the axial direction of the screw 56.
V-shaped notches 59 each having an inclination angle of ° are formed. As shown in FIG. 9 (2), one side forming the V-shaped notch 59 extends coaxially with the screw 56,
The other side forming the cut 59 has an inclination angle of 3 ° to 6 ° with respect to the axial direction of the screw 56.

In the above embodiment, FIG.
As shown in (1), the separation facilitating means between the front and rear nails 21 in the connecting band 23 (22) includes a crossing portion A (A ') between the front fastener and the lower end of the connecting band and the rear side. The line AB (A'B ') connecting the fastener B and the intersection B (B') of the upper end of the connecting band may be formed with the maximum inclination angle.

Next, a ninth embodiment of the connecting fastener and the like according to the present invention will be described with reference to the drawings. Figure 10
It is a right side view of the connection fastener 70 which concerns on this Embodiment, and is the drawing which notched the connection fastener 70 partially for structure description. FIG. 11 is a front view of the same fastener, showing only the leading fastener 71a among a plurality of fasteners that are joined.
As shown in FIG. 10, the connecting fastener 70 includes a plurality of fasteners 71 (71a, 71b, 71c, 71d ...).
So that the shanks 72 are parallel to each other and the head 73
The fasteners are arranged at equal intervals while being shifted upward so that they do not collide with each other, and the fasteners are connected by connecting belts T1, T2 and connecting belts T3, T4. In the case of the present embodiment, each connecting belt T1, T2, T3, T4 is formed in a tape shape with a width of about 10 mm, and the surface of the kraft paper (base material 74) is the same as in the other embodiments described above. An adhesive layer 75 made of a hot melt adhesive is provided on the surface (FIG. 12 (b)). One connecting band T1, T with this configuration
2 is adhered to a predetermined position on the lower half of the shank, and the other connecting bands T3 and T4 are adhered to the upper part of the shank. Further, the connection bands T1 and T3 are provided on the right side surface of the connection fastener 70, and the connection bands T2 and T4 are provided on the left side surface of the connection fastener 70.

The fastener 71 used in the illustrated connecting fastener 70 has a shank having a total length L1 of about 90 mm and an axis d1 of about 3.7 mm, and a diameter D1 of about 7.6 mm at the upper end of the shank. It has a circular flange-shaped head. The fasteners 71 are arranged with the interval P1 between the fasteners being about 6 mm, with the interfering heads being shifted upward, and the connecting bands T1, T2, T3,
Each fastener 71 is connected via T4. The fastener to be bound as the connecting fastener is not limited to the above standard (dimensions), and may be another standard. In this case, various conditions to be provided for the connecting fastener and the connecting belt described below are to be applied by analogy with appropriate time.

As a result of configuring the connecting fastener 70 as described above, a straight line XX 'connecting the same position (for example, each tip position) of the front fastener and the rear fasteners.
The angle α formed by the line and the shank is about 111 degrees. The connecting band is adhered to both sides of the arranged fasteners 71 at the same angle as the angle α. The connecting belts T1 and T2 are adhered in such a position that their upper edges are opposite to each other at a position approximately 2 mm below the head 73, and the connecting belts T3 and T4 are opposite to each other at a position lower than about half the entire length. Bonded in a relationship. The connecting fastener 70 formed in this way is not dropped from a certain height, and the fastener 71 is not easily separated or the connecting belt is broken and the connecting fastener 70 is bent when handled for handling such as transportation and loading. It is a kind of rigid structure.

In the adhesive layer 75 of the connecting belts T1, T2, T3, T4, a plurality of linear weak portions 76 formed as a separation promoting means are formed at equal intervals as in the other embodiments described above. There is. FIG. 12 is a drawing for explaining the structure of the connecting strips, FIG. 12 (a) is a side view showing the state of each connecting strip as viewed from the adhesive layer 75 side, and FIG. 12 (b) is the fragile portion 7.
FIG. 6 is an enlarged partial cross-sectional view of a connecting band in a portion where 6 is provided. Although four connecting bands are used in the present embodiment, the connecting bands T1 and T3 and the connecting bands T2 and T4 are the same, and there are two kinds of connecting bands. The difference between the two is the angle of the fragile portion 76, but the fragile portion 76 has the same angle with respect to the shank 72 when the adhesive layers 75 face each other. In the present embodiment, the angle with respect to the shank is the same. θ is about 3 degrees (1 with respect to the XX ′ line
It is provided so as to form an inclination angle of 14 degrees.

The connecting band will be further described with reference to FIG. FIG. 12B is an enlarged partial cross-sectional view showing the fragile portion 76. As an optimum embodiment, the fragile portion 76 has a V-shaped cross section as shown in the figure. That is, a thin portion is formed by cutting in the adhesive layer 75, and the thin portion is used as a fracture portion. A plurality of such V-shaped cuts are formed in parallel so that the angle θ with respect to the shank is about 3 degrees and the interval (pitch) P2 is about 2 mm. In addition, each connecting band T1 to T4
Has a width W1 of 10 mm and a thickness h of the substrate 74 as described above.
1 is about 0.2 mm, and the thickness h2 of the adhesive layer is about 0.3.
It is formed to have a size of mm. Further, the depth of cut h3 is about 0.1 mm (0.07 to 0.15 mm), and as a result, the thickness h4 of the thin portion is about 0.2 mm (0.
23 to 0.15 mm).

The specific dimensions and conditions for each of the connecting bands T1 to T4 described above were derived from the results of various experiments so as to satisfy the functions described below. That is,
There are four main types of conditions required for connecting belts. The first is that the fastener 71 has a strength such that the fastener 71 is not easily separated / dropped off or broken due to the breaking of the coupling band when the coupling fastener 70 is handled, and the coupling fastener 70 has rigidity that is not extremely deformed by an external force. is there. This function is mainly affected by the materials of the base material 74 and the adhesive layer 75 described above, and the width W1 and the thickness h2 of the adhesive layer. The larger the width W1 and the thickness h2 are, the stronger the strength and rigidity are. The higher and the smaller, the lower the strength and rigidity.

Secondly, in the nail driving machine 8, it has a function of preventing rotation of the fastener 71 hit by the driver 9 and preventing inclination of the fastener 71 at the time of injection. This function is mainly performed by the materials of the base material 74 and the adhesive layer 75, the angle θ of the weak portion 76, the depth of cut h3 (thickness h4 of the thin portion), and the pitch P2 of the weak portion 76.
Are affected by. That is, the breaking strength of the fragile portion 76 when the fastener 71 is hit is determined to some extent by the thickness h4 of the thin portion. If it is easy to break, the inclination of the fastener 71 can be reduced, but it is extremely easy to break.
As a result, the strength and rigidity are reduced. The angle θ of the fragile portion 76 is necessary for moving the fastener 71 in a direction opposite to the rotation with respect to the fastener 71 about to rotate. The pitch P2 will be described later.

The third function is to supply the fastener 71 into the injection path. The nailing machine 8 pushes forward several fasteners of the leading position fastener 71a to be hit or the fastener at the last portion by the pushing means, so that the leading fastener is supplied into the injection path. There is. That is, the pressing force of the pressing means is the connecting bands T1 to T.
4, the fastener 71a at the leading position is pushed out into the injection path. That is, the connecting band T
The fastener 71a at the leading position is pressed against the front side portion in the injection path by 1 to T4. Similar to the first function, this function is mainly affected by the width W1 and the thickness h2 of the adhesive layer.

The fourth function is to hold each of the fasteners 71 bundled as the connecting fastener 70 so that they can be driven under the same conditions, and drive all the fasteners vertically to the work without bending them. The same condition means that the fasteners have the same influence on each fastener 71, and specifically, the fasteners 71
Is to be separated at the fragile portion 76 at the time of injection. This function is mainly influenced by the width W1, the angle θ, and the pitch P2 of the adhesive layer, and the pitch P2 is particularly important. That is, when the fastener and the connecting strip are adhered to each other, the adhesive layer is alternately melted to form a part that is bonded to the fastener and a part that is not melted. And
The pitch P2 is an important element in order to provide at least one fragile portion 76 at the angle θ between the unmelted portions, that is, between the arranged fasteners. This is because even if the fragile portion 76 is previously formed in the connecting band, if the fragile portion 76 is melted, the function as the fragile portion 76 is not fulfilled. Even if such a melted portion is generated, it may occur between the fasteners. Is at least one fragile section 76 that functions normally
Is required.

The structure and function of the connecting fastener and the connecting band according to the ninth embodiment have been described above. Next, FIG. 1 shows how the connecting fastener 70 is injected by the nailing machine 8.
3 will be used for the explanation. FIG. 13 is a perspective view schematically showing a state in which the connecting fastener 70 is loaded on the nailing machine 8 and the connecting fastener 71a is ejected by the driver 9 in a stepwise manner. FIG. 13A shows a state before the operation of the driver 9, in which the connecting fastener 70 is pressed forward (left side in the drawing) by pressing means (not shown) provided in the magazine. Further, in the case of the nailing machine 8 of the present embodiment, the shank 72 is inclined about 3 degrees with respect to the moving direction of the driver 9 operating in the injection path 77 with the connecting fastener 70 normally attached. It is designed to be loaded. This is because the fastener rotates due to the impact of the driver 9 so that the tip of the fastener moves backward, and an angle is set in advance in consideration of the amount of rotation. At the time of injection, the angle α of the fragile portion formed in the connecting band acts synergistically together with the angle, and the posture of the fastener at the time of driving can be set to an appropriate state.

FIG. 13 (b) shows a state where the driver 9 hits the head of the fastener 71, and the connecting bands T1 and T2 and the brittle portions 76 of the connecting bands T3 and T4 are broken to shear the connecting bands. Is shown. When the fragile portion 76 is broken, the angle α of the fragile portion is reduced as the fastener 71 descends.
The connecting strips separated along are pushed forward and act as a reaction force against the fastener 71 that is about to rotate. As a result, the fastener 71 is driven vertically into the work (FIG. 13C).

FIG. 13D shows a state in which the driving has been completed. As one of the features of the connecting fastener 71 according to the present embodiment, a broken connecting band fragment is
It can be said that the fastener 71 is driven into the work while being adhered to the shank. This feature has a very good effect, one of which is that it does not discharge dust. In actual use, hundreds of fasteners are used per day. If the connecting strip is discharged as dust every time the fastener is driven, the work site becomes very dirty. In the case of the connecting fastener 71 according to the present embodiment, there is such an effect that dust is not discharged or is extremely small. In addition, when the shank is driven with the broken piece of the connecting band attached, it acts as a retainer for the fastener that has been driven in, and the fastener has the effect of being difficult to remove from the work.

The fragile portion 76 provided in the connecting band will be further described. As a result of the experiment, when the fragile portion 76 was not provided, there was a case where the fastener was ejected while rotating and was clogged in the ejection path. Further, even when the fragile portion 76 is provided at the same angle as the shank, the fastener cannot be prevented from rotating. As a result of repeated experiments under various conditions, when the angle θ of the fragile portion 76 has an inclination of about 3 degrees or more, the driving can be performed in the optimum state. However, the angle θ also has an upper limit, and the width W1, the distance between adjacent fasteners, and the fragile portion 7 described above.
It will be limited by the pitch P2 of 6. What is considered to be the minimum requirement is to satisfy the condition that a weak portion that effectively functions is always provided between the fasteners as described above. From this point of view, in the case of the present embodiment, the upper limit angle θ is about 6 degrees. Further, as a method of providing the brittle portions that function effectively between the above-described fasteners, there is a method of forming the brittle portions between the fasteners after forming the connecting fastener. This inevitably requires perforations and incisions to be formed, but as the number of work steps increases, the post-processing requires processing of the base material as well, resulting in insufficient rigidity and easy breakage. There is a background. There is also a method of forming a connecting band in which fragile portions are provided in advance at the same pitch as the fastener arrangement pitch, and adhering the connecting band to the fastener while aligning the fragile portions between the fasteners. In this case, it has been found that alignment requires time and defective products are likely to appear. From such a viewpoint, in the present invention, the fastener arrangement pitch P1
Based on the above, the interval P2 and the angle θ are set so that the fragile portion is always arranged between the fasteners no matter how the connecting bands are bonded. As described above, the connecting fastener and the connecting strip according to the present invention are not limited to those having the above-described various dimensional values and the like, and include the various functions and properties that the connecting fastener and the connecting strip described above should have, The connecting fasteners and the connecting belts to which the gist of the above is analogized all belong to the technical scope of the present invention.

[0057]

According to the connecting fastener of claim 1 of the present application, when an impact load is applied to the connecting belt when the driver is driven, the lower portion of the fastener in the connecting belt is easily broken, and the connecting fastener is connected by the driver. Even if you hit the fastener,
The driven fastener is prevented from being dragged by the connecting belt and the driving direction is prevented from tilting, and the driven fastener advances straight in the driving direction.

Further, the fragments of the cut connecting strips will not be scattered to the floor or the like, and the floor surface or the like can be prevented from being soiled or damaged. Further, since the separation promoting means can be formed in advance in the connecting band, there is no need for post-processing for forming perforations or the like between the fasteners after holding the plurality of fasteners in parallel with the connecting band.

According to the connecting fastener of claim 2 of the present application, since it comprises at least one of the notch, the perforation, the slit, and the thin portion, these connecting facilitating means are formed in advance, or these separating means are separated. It is possible to use a material in which the facilitating means is formed, which simplifies the manufacturing process of the connecting fastener and is advantageous in cost reduction.

According to the connecting fastener of claim 3 of the present application, when the connecting belt is adhered only to the upper portion, the intermediate portion or the tip portion of the fastener, the connecting belt is more easily broken when the fastener is driven. Further, when the connecting belts are bonded at two or more places, the connecting fasteners are formed into a plate shape, and when the plate-like connecting fasteners are stacked, the upper connecting belts are provided between the fasteners of the lower connecting belts and the fasteners. It is possible to avoid the situation where the fastener is inserted and the connecting band becomes difficult to move.

According to the connecting fastener of claim 4 of the present application, the connecting band is adhered to both front and back surfaces of the arranged fasteners, and the separation promoting means is formed in the plastic layer for adhering the fastener inside the connecting band. In the case of plate-shaped connecting strips, the laminated connecting strips are easily slippery.

According to the connecting fastener of claim 5 of the present application, since the angle of the separation promoting means is formed in the range of 3 ° to 6 °, it is possible to increase the number of fasteners to be connected by the connecting belt and to drive the driver. It is easy to separate the connecting band when inserting.

According to the connecting fastener of claim 6 of the present application, the separation facilitating means between the front and rear fasteners is inclined so that the connecting belt lower end of the front fastener is connected to the connecting belt upper end of the rear fastener. It is easy to separate because it is.

The connecting fastener according to claims 7 to 9 is
By adhering the shank and the shank to the connecting band at the upper and lower two places, there is an effect that the shank is not broken during handling and the rigidity is sufficient to support the fastener driven in the nailing machine. In addition, since one weak portion that effectively functions is always formed between the fasteners, all fasteners can be stably ejected.

The connecting belt according to the tenth to twelfth aspects has an effect that a plurality of fasteners can be connected to each other to form a flat plate-like connecting fastener having predetermined strength and rigidity. Further, since the fragile portion is provided on the resin layer which is the adhesive layer, the processing is easy, and the fragile portion can be formed according to the fastener to be connected, and the breaking strength and the breaking direction can be set in advance. Have

[Brief description of drawings]

FIG. 1 (1) is a partially enlarged view of a connecting fastener according to a first embodiment of the present invention. FIG. 1 (2) is a modification of the connecting fastener of (1).

FIG. 2 is a partial view showing a planar shape of the connecting fastener of FIG.

FIG. 3 is an explanatory view showing a behavior of a nail when the connecting fastener according to FIG. 1 is driven by a nail driving machine.

FIG. 4 is a schematic view showing a manufacturing process of a connecting band used in the connecting fastener of FIG.

FIG. 5 (1) is a partially enlarged view of the connecting fastener according to the second embodiment. 5 (2) and 5 (3) are shown in FIG.
Modification of (1).

FIG. 6 is a partial view showing a planar shape of the connecting fastener of FIG.

FIG. 7 (1) is a partially enlarged view of a connecting fastener according to a third embodiment, and FIG. 7 (2) is a partially enlarged view of a connecting fastener according to the fourth embodiment.

FIG. 8 (1) is a partially enlarged view of a connecting fastener according to a fifth embodiment, and FIG. 8 (2) is a partially enlarged view of a connecting fastener according to a sixth embodiment.

FIG. 9 (1) is a partially enlarged view of a connecting fastener according to a seventh embodiment, and FIG. 9 (2) is a partially enlarged view of a connecting fastener according to an eighth embodiment.

FIG. 10 is a side view of a connecting fastener according to a ninth embodiment of the present invention.

FIG. 11 is a front view of a main part of the connecting fastener shown in FIG.

FIG. 12 is an explanatory view of a connecting band used for the connecting fastener according to the ninth embodiment of the present invention.

FIG. 13 is an explanatory diagram for explaining a state when the fastener is driven in, of the connecting fastener according to the ninth embodiment of the present invention.

[Explanation of symbols]

1 connection fastener 2 nails 3, 4 connection belt 5 Kraft paper 6 plastic layers 7A, 7B groove 70 Connection fastener 71 Fastener 72 shank 73 head 74 Base material 75 Adhesive layer 76 fragile part 77 Exit path T1, T2, T3, T4 connection band

Claims (12)

[Claims] 1. A connecting fastener in which a plurality of fasteners are held in parallel in a connecting band, wherein the connecting band is made of either paper or resin having an adhesive layer, and at least one surface of the fasteners arranged in parallel. It is affixed to the side, the connection band,
A connection fastener characterized in that a plurality of separation promoting means for promoting separation of the fasteners are formed at a pitch smaller than the arrangement pitch of the fasteners from the upper portion of the rear fastener toward the lower portion of the front fastener. 2. The connection fastener according to claim 1, wherein the separation promoting means includes at least one of a cut, a perforation, a slit, and a thin portion. 3. The connecting fastener according to claim 1, wherein the connecting band is provided on at least one of an upper portion, an intermediate portion and a lower portion of the arranged fasteners.
A connection fastener characterized by being bonded. 4. The connecting fastener according to any one of claims 1 to 3, wherein the connecting band is bonded to both front and back side surfaces of the arranged fasteners in pairs.
The connection fastener, wherein the separation promoting means is formed on a plastic layer of the connection band to which the fastener is adhered. 5. The connection fastener according to any one of claims 1 to 4, wherein the separation promoting means has an inclination angle of 3 ° to 6 ° with respect to the axial direction of the fastener. Connected fastener to be. 6. The connecting fastener according to claim 1, wherein the separation promoting means between the front and rear fasteners in the connecting belt is a crossing portion between a front fastener and a lower end of the connecting belt. A connection fastener characterized in that the inclination angle of a line connecting a crossing portion of a rear side fastener and an upper end portion of a connection belt is formed as a maximum inclination angle. 7. A plurality of fasteners each having a shaft of a predetermined length and provided with a head to be a hit portion on the upper end of the shaft are arranged in parallel and at equal intervals, and the shafts of the arranged fasteners are connected to each other. A connecting fastener formed into a flat plate shape by connecting with a band, wherein the connecting band is an adhesive having an adhesive action at the predetermined temperature on one side surface of a base material formed of paper or a material that does not melt at a predetermined temperature. A tape-shaped member having a predetermined width provided with a layer, wherein each fastener has a predetermined position lower than the center in the longitudinal direction of the shaft, or the connection band at both the predetermined lower position and the vicinity of the upper end. A connection fastener characterized by being bonded. 8. A coupling band adhered at a predetermined position at least below a longitudinal center of the shaft is provided on both front and back surfaces of the flat plate-shaped coupling fastener. Item 7. A connection fastener according to item 7. 9. The adhesive layer of the connecting band has at least one fragile portion at a position between the shafts of the fasteners arranged at equal intervals in a direction from an upper portion of a rear fastener to a lower portion of a front fastener. 9. The connecting fastener according to claim 1, wherein the connecting fastener is provided so as to be inclined. 10. A tape having a predetermined width, which is a connecting band for connecting a plurality of fasteners having a shaft of a predetermined length and a head serving as a hit portion at the upper end of the shaft to form a flat plate shape. Formed in a sheet shape, and having a base material formed of paper or a flexible material that does not melt at a predetermined temperature and an adhesive layer having an adhesive action at the predetermined temperature on one side of the base material, and the adhesive layer is A linking band characterized by being provided with a fragile portion formed by a plurality of cuts, perforations, slits, thin-walled portions and the like across the width direction. 11. The linking strip according to claim 10, wherein the fragile portion is provided so as to be inclined at a predetermined angle with respect to the width direction of the linking strip. 12. The method according to claim 10, wherein the width is about 10 mm and the thickness of the adhesive layer is about 0.3 mm.
Connection band described in 1.