JPS6329392Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a vinyl sheet fastening tool used when a vinyl sheet is spread on a steel pipe base constituting a vinyl house and the vinyl sheet is attached to the pipe base.

To construct a vinyl house, it was necessary to stretch a vinyl sheet over a steel pipe for assembly and attach it to the pipe. Conventionally, to attach such a vinyl sheet to a pipe, a semicircular cap made of synthetic resin and having an opening at the bottom has been used to cover the sheet and the pipe together. In addition, in order to ensure that the seat is attached reliably by the elastic force of the cap, caps made of synthetic resin with semicircular springs housed inside the cap are also widely used.

However, the above-mentioned cap has a weak clamping force, is not sufficient to attach the sheet to the pipe, and also easily slides on the vinyl sheet. The latter cap stores a spring, which increases the clamping force, but storing a semicircular spring inside the cap and molding it is a very difficult molding process, and it also makes it difficult to construct a vinyl house. Dozens or hundreds of caps have to be used when doing so, making them extremely expensive and uneconomical in practice. In view of this point, the present invention has created a vinyl sheet fastener as an alternative.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a steel wire body having a substantially semicircular cross section, which is composed of two drooping side portions 2, 2' and end portions 3, 3' formed by extending the two drooping side portions 2, 2'. The two drooping side portions 2, 2' hang down at a slight inclination in opposite directions as shown in Figs. 3 to 5. The end portions 3, 3' are also drooping at a slight inclination in opposite directions as shown in Figs. 3 to 5.
The levers are bent in an L-shape in the opposite direction to the inclination direction of the side portions 2, 2' so as to be parallel to the longitudinal axis of the steel wire body 1 having a substantially semicircular cross section. The tip portions 3, 3' are further bent slightly in the longitudinal direction of the steel wire body 1 having a substantially semicircular cross section.
As shown in Fig. 6, even if the bending direction is opposite to that shown in Figs. 3 to 5, the effect is the same. Similarly, the inclination angle of both side portions 2, 2' may be made larger as shown in Fig. 6.
As shown in Fig. 1 and Fig. 2, the pipe-holding cap 4 has a semicircular cross section and is molded from hard synthetic resin.
The cap 4 has an inner peripheral wall 7 on which a plurality of ribs 8, 8... made of soft synthetic resin are provided in the longitudinal direction of the cap 4. The ribs 8, 8... are oriented in the axial direction of the cap 4.

In addition, the above-mentioned steel wire main body 1 has both side parts 2,
Since it is press-fitted into the cap 4 from between 2' and the both sides 9 and 9' of the cap 4 are held between the both sides 2 and 2' of the steel wire body 1 and the tip parts 3 and 3', the steel The wire body 1 is formed to have a diameter narrower than that of the cap 4. In the figure, 10 is a steel pipe, 1
1 is a vinyl sheet.

In order to stretch and fix the vinyl sheet 11 to the pipe 10 using the steel wire body 1 and the pipe holding cap 4 of the present invention, first, the vinyl sheet 11 is stretched from the opening 12 of the pipe holding cap 4. Fit into the pipe 10. The cap 4, which has a diameter somewhat narrower than that of the pipe 10, has the above-mentioned opening 12 temporarily widened and expanded, and can be easily fitted.

Although the vinyl sheet 11 is attached to the pipe 10 so as to be held by the cap 4, the cap 4 itself has a weak clamping force, so that it cannot be attached tightly enough. Next, the steel wire body 1 is press-fitted into the cap 4 from the top until the tip portions 3, 3' of the steel wire body 1 come into contact with the flanges 6, 6' of the cap 4. Since the steel wire main body 1 has a narrower diameter than the cap 4, it is clamped onto the outer peripheral surface of the cap 4.

In the present invention, the vinyl sheet 11 is held and attached to the pipe 10 by the pipe holding cap 4, and the steel wire main body 1, which has a narrower diameter than the cap 4, is clamped to the cap 4. 11 can be tightly adhered to the outer peripheral surface of the pipe without easily sliding. The L-shaped tips 3 and 3' of the steel wire body 1 are connected to the cap 4.
Since it is attached to both side parts 9, 9' of the cap and clamps the cap, in addition to the elastic force that tightens the pipe 10 of the cap 4, the steel wire main body 1 itself is tightly attached due to its strong contraction. Therefore, the force of the cap 4 to hold the pipe 10 is strong, and the cap 4 can be held securely to the pipe, and the vinyl sheet can be reliably applied to the pipe 10.

Also, both sides 2, 2' of the steel wire body 1 are made to hang down while being inclined in opposite directions, and the tip parts 3, 3'
is bent into an L-shape in a direction opposite to the direction of inclination of the both sides 2, 2' so as to be parallel to the long axis of the steel wire main body 1, and the tip portions 3, 3' are bent in the direction of the long axis. Unlike a straight semicircular steel wire spring, it can be press-fitted into the cap 4 easily by sliding and clamping it like a leaf spring, and can also slide on the outer circumferential surface of the cap 4. It has the effect of securely and strongly clamping onto the outer peripheral surface of the cap 4 without moving. Furthermore, since a plurality of protrusions 8, 8... made of soft synthetic resin are protruded in the longitudinal direction of the inner circumferential wall 7 of the cap 4, the portions of the vinyl sheet 11 that come into contact with the protrusions 8, 8... are pressed. The vinyl sheet has the effect of more reliably and tightly adhering the pipe 10.

The present invention has a simple structure, is easy to install, and is a highly profitable creation.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the present invention, Figure 2 is a front view of the cap, Figure 3 is a front view of the steel wire, Figure 4 is a side view of the same, Figure 5 is a plan view of the same, and Figure 6 is the steel wire. It is another example figure of a line.

Claims (1)

[Scope of utility model registration request] Tsuba 6,
A pipe holding cap 4 having a substantially semicircular cross section and having a plurality of protrusions 8, 8... made of soft synthetic resin protruding in the longitudinal direction of the inner circumferential wall 7, and both sides 2, 2'. are suspended in opposite directions, and the tip portions 3, 3', which are extensions of the both side portions 2, 2', are parallel to the long axis of the steel wire body 1 in a direction opposite to the above-mentioned inclination direction. A vinyl sheet stopper is made of a steel wire body 1 having a substantially semicircular cross section and having a diameter narrower than that of the pipe holding cap 4, which is bent into an L shape as shown in FIG. Kimono.