JP4961652B2 - Screw connection band - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a screw connection band in which a plurality of screws are fixedly connected to a connection band.
[0002]
[Prior art]
Conventionally, a nail is driven into a workpiece when assembling a building or the like, but it is being replaced with a screw instead of a nail due to problems such as durability, and a screw connection band 1 shown in FIG. 6 has been proposed. .
[0003]
The screw connection band 1 is formed by bonding the shafts 3 of a plurality of screws 2 to a resin connection band 4 and connecting the screws 2, and driving the screws into a workpiece by a screw driving machine. .
[0004]
[Problems to be solved by the invention]
However, in such a screw connection band 1, the arrangement pitch of the screws 2 cannot be made smaller than the diameter of the head 5 by the head 5 of the screw 2, and the screw connection band 1 becomes long. The portability was bad. Moreover, the space for setting the screw coupling band 1 to the screwdriver increases.
[0005]
Further, as shown in FIG. 7, there is a problem that when the screw is driven into the workpieces W <b> 1 and W <b> 2 obliquely from the direction of the arrow by the screw driving machine 6, the screw connector band 1 hits the workpiece W. Further, when carrying a plurality of screw connector bands 1 in a stacked manner, if the pitch width of the screws 2 and 2 is large, the screws of the other screw connector bands 1 enter between the screws 2 and 2 and screw. There were many problems such as the two tip portions being entangled with each other.
[0006]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a screw connection band capable of solving the above problems.
[0007]
[Means for Solving the Problems]
To achieve the above object, the invention of claim 1, by fixing when arranging in parallel a plurality of screws and monitor, the connection strap to be oblique to the longitudinal direction of these screws connecting band connected It is characterized by that.
[0008]
The invention of claim 1 is characterized in that the pitch of the arranged screws is set to be equal to or less than the diameter of the head of the screw.
[0009]
Specifically, each of the plurality of screws has a trumpet-shaped neck portion between the head portion and the shaft portion, and the peripheral end of the upper surface of the screw head portion is a boundary between the neck portion of the rear screw and the shaft portion. The pitch is set to be equal to or smaller than the diameter of the head.
[0010]
Further, in the first aspect of the present invention, a plurality of bands formed in a cylindrical shape are provided side by side in the connection band, and only the head side of the shaft portion of each screw is fixed to the connection band by the band, and this state The angle between the direction perpendicular to the shafts of the plurality of screws and the longitudinal direction of the connecting band is set in the range of 6 ° to 33 °.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a screw connection band according to the present invention will be described below with reference to the drawings.
[0012]
The screw connection band 10 shown in FIG. 1 arranges a plurality of screws 11 while being shifted in parallel in the vertical direction (in FIG. 1), and the head 13 side of the shaft portion 12 of these screws 11 is made of a resin connection band 14. The screw 11 is disposed obliquely with respect to the longitudinal direction of the connection band 14. Note that a plurality of bands formed in a cylindrical shape are juxtaposed on the connection band 14, and the screw 11 is fixed to the connection band 14 by this band. The screw 11 is driven separately from the band when driven.
[0013]
As shown in FIG. 2, the peripheral end of the upper surface 13 a of the head 13 of the screw 11 is brought into contact with the boundary between the neck portion 15 and the shaft portion 12 of the rear screw 11 (the right screw 11 in FIG. 2) and connected. In the case of the screw connection band 10, the front (left) screw 11 is regulated in the height direction with respect to the rear (right) screw 11. Further, when the head diameter of the head 13 of the screw 11 is D, the thickness of the head 13 is t, the diameter of the shaft portion 12 of the screw 11 is d, and the height of the trumpet-shaped neck portion 15 of the screw 11 is h. The angle θ between the Q direction orthogonal to the shaft portion 12 of the screw 11 and the longitudinal direction (Y direction) of the connecting band 14 is
tan θ = 2 × (h + t) / (D + d). Note that h = (D−d) / 2. In the case of a general screw, 7.2 mm ≦ D ≦ 9 mm, 3.65 mm ≦ d ≦ 5.6 mm.
[0014]
Since the maximum inclination angle is D = 9, d = 3.65, and t = 1, when calculated from the above formula, θ = 30.2 °. When θ becomes larger than this angle of 30.2 °, that is, as shown in FIG. 3, when the screws 11 and 11 are further shifted in the vertical direction, the contact area between the shaft portion 12 of the screw 11 and the contact portion of the connecting band 14 is increased. The connection strength of the screw 11 increases, but the height of the screw connection band 10 in the vertical direction increases, and as a result, the length of the connection band 14 becomes longer than necessary. That is, the amount of use of the connecting band 14 increases, which is not preferable. Further, since the height is increased, the portability is poor and the height of the magazine for housing the screw connection band 10 must be increased, resulting in inconvenience.
[0015]
As shown in FIG. 4, the minimum inclination angle is 7.1 ° when θ is obtained from D = 7.2, d = 5.6, and t = 0 (theoretical).
[0016]
When the angle θ is smaller than 7.1 °, the vertical height of the screw connection band 10 can be reduced, but the length of the connection band 14 in the left-right direction becomes long. That is, the length of the screw connection band 10 becomes long, and the amount of use of the connection band 14 increases, which is not preferable.
[0017]
On the other hand, if the angle θ is smaller than 7.1 °, the contact area between the shaft portion 12 of the screw 11 and the adhesive layer of the connecting band 14 becomes small, so that the connection strength of the screw 11 decreases, which is not preferable.
[0018]
If the angle θ is smaller than 7.1 °, the screw coupling band 10 may hit the workpiece W1 when the screw 11 is driven obliquely as shown in FIG. 5, and the angle θ is 7.1 ° or more. If there is, the screw connection band 10 is prevented from hitting the workpiece W1 as shown by the chain line.
[0019]
In view of the above, the angle θ should be not less than 7.1 ° and not more than 30.2 °. However, in consideration of the centering of the screw 11 and tolerances and manufacturing tolerances, an error of 10% is added. If the angle θ is not less than 6 ° and not more than 33 °, the length of the screw connection band 10 can be shortened and the height can be kept low, and the space of the magazine for storing the screw connection band 10 can be reduced. Can be small. Moreover, the portability of the screw connection band 10 is good.
[0020]
Further, since the screws 11 are displaced in the vertical direction, the pitch between the screws 11 can be narrowed. For this reason, when a plurality of screw connection bands 10 are carried in layers, the shaft portion of the screw 11 12 and the shaft portion 12 of the screw 11 are prevented from getting in between the shaft portions 12 of the other screw connector bands 10 and the shaft portions 12 of the screw 11 are prevented from being entangled with each other.
[0021]
Further, each extension line of the upper surface 13a of the head 13 of the screw 11 (left screw in FIGS. 2 and 4) is positioned at the neck 15 of the rear screw 11 (right screw in FIGS. 2 and 4). If the screws 11 are arranged, the pitch of each screw 11 can be made equal to or smaller than the diameter D of the head 13, and the height of the screw connection band 10 can be kept low, and the screw connection band 10 is accommodated. The space of the magazine can be saved.
[0022]
【Effect of the invention】
As described above, according to the first aspect of the present invention, since the screw is fixed to the connecting band so as to be inclined with respect to the longitudinal direction of the connecting band, the pitch between the screws is reduced. And the length of the screw connection band can be shortened. For this reason, the space for setting the screw connection band to the screw driving machine can be reduced, and the portability of the screw connection band is improved. In addition, since the screws are obliquely fixed to the connection band, the connection strength of the screws can be increased.
[0023]
According to the invention of claim 1, the plurality of screws are arranged such that the peripheral edge of the upper surface of the screw head is in contact with the boundary between the trumpet-shaped neck portion and the shaft portion of the rear screw. Therefore, the pitch of each screw can be reduced, the height of the screw connection band can be kept low, and the space for the magazine that houses the screw connection band can be saved.
[0024]
According to the invention of claim 1, a plurality of bands formed in a cylindrical shape are provided side by side in the connection band, and only the head side of the shaft portion of each screw is fixed to the connection band by this band. The angle formed between the direction perpendicular to the shaft portions of the plurality of screws and the longitudinal direction of the connecting band is set in the range of 6 ° to 33 °, so that the length of the screw connecting band can be shortened. At the same time, the height can be kept low, and the space of the magazine for storing the screw connection band can be reduced. Moreover, the portability of the screw connection band is good. Furthermore, it is possible to prevent a problem that the screw connector band hits the workpiece W when the screw is driven obliquely with the nailing machine.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a configuration of a screw connection band according to the present invention.
FIG. 2 is an explanatory diagram showing an angle formed by a direction orthogonal to a shaft portion of a screw and a longitudinal direction of a connecting band.
FIG. 3 is an explanatory view showing a state where the angle shown in FIG. 2 is increased.
FIG. 4 is an explanatory diagram showing a case where the angle shown in FIG. 2 is reduced.
FIG. 5 is an explanatory view showing a state where a screw connection band does not hit a workpiece.
FIG. 6 is an explanatory view showing a configuration of a conventional screw connection band.
FIG. 7 is an explanatory view showing a state where a connecting screw hits a work.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Screw connection band 11 Screw 12 Shaft part 13 Head 14 Connection band

Claims (1)

A screw connection band in which a plurality of screws are arranged in parallel, and these screws are fixedly connected to the connection band so as to be inclined with respect to the longitudinal direction of the connection band,
Each of the plurality of screws has a trumpet-shaped neck between the head and the shaft, and the peripheral end of the upper surface of the screw head is brought into contact with the boundary between the neck of the rear screw and the shaft. Arranged and the pitch is set below the diameter of the head,
A plurality of bands formed in a cylindrical shape are juxtaposed in the connection band, and only the head side of the shaft part of each screw is fixed to the connection band by this band, and in this state, the shaft parts of the plurality of screws The screw connection band, wherein an angle formed by a direction perpendicular to the longitudinal direction of the connection band is set in a range of 6 ° to 33 °.