JPH0240155Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fixing device for sheets such as waterproof sheets, and more specifically, the present invention relates to a fixing device for sheets such as waterproof sheets.
The present invention relates to a sheet fixing tool that is suitably used for positioning and fixing sheets at predetermined locations to facilitate heat sealing when abutting the sheets and heat sealing the abutted portions.

Conventionally, in tunnel shield construction methods, when sequentially connecting stretched tarpaulin sheets, a method has been adopted in which the ends of the tarpaulin sheets are bent and abutted against each other, and the abutted portions are heat-sealed.
In this case, the ends of the waterproof sheets must be butted along the entire circumferential length of the tunnel, but
In this way, it is difficult to accurately butt the sheets together over the entire circumferential length, and the sheets may sag, making it impossible to position and fix the butted parts accurately, making it difficult to heat seal, and making it difficult to perform the construction work. There were problems such as it was time-consuming and difficult to tension the waterproof sheet onto the concrete.

The present invention was made to improve the above-mentioned situation, and it is possible to securely and stably tension and fix the sheets, especially the ends thereof, by bending the ends of the sheets, An object of the present invention is to provide a sheet fixing device that can accurately position and fix the folded corners of sheets when they are butted together, and that provides excellent workability when heat-sealing the butted portions. .

That is, in order to achieve the above object, the present invention includes a fixing device body formed in the shape of a long strip, and length adjustment members that are attached to both ends of the fixing device body in the length direction and can move forward and backward in the length direction. and a hook member attached to one end of each of these adjustment members, and the hook member is hooked to a predetermined position of the seat attachment location, and the adjustment member is expanded and contracted to adjust the length and fixed. The seat is fixed by bringing the tool body into close contact with the seat.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 shows a fixture according to an embodiment of the present invention. This fixture 1 is made of a metal such as steel or an elastic material such as hard plastic. ~5 mm long strip-shaped fixture body 2 and turnbuckles 3 fixed to both lengthwise ends of this fixture body 2, respectively.
and hook members 4 each attached to one end of these turnbuckles 3 and having hook-shaped tips.
It is composed of.

The turnbuckle 3 has male threaded bodies 5, 5 each having a right-handed threaded portion and a left-handed threaded portion on the rear end side.
are screwed into the female threaded portion of the buckle main body 6 so as to be able to move forward and backward in the longitudinal direction, and the tips of these male threaded bodies 5, 5 are welded and fixed to the fixture main body 2 and the hook member 4, respectively.

Next, a method of using the sheet fixing device having the above-mentioned structure will be described, taking as an example a case where waterproof sheets are connected to each other in a tunnel shield construction method.

First, the waterproof sheets 8, 8' are brought into contact with the lining concrete 7 poured into the tunnel ground, and these waterproof sheets 8, 8' are connected to the concrete nails 9,
The ends of the waterproof sheets 8, 8' to be fixed to the concrete 7 at 9' and connected to each other are bent along the entire circumferential length of the tunnel and abutted against each other. Here, the abutting portion 10 of these waterproof sheets 8, 8',
The fixing devices 1 and 1' are arranged along the circumferential direction of the tunnel at the bent corners of the hook 10', respectively. In this case, as shown in FIG. 4a on the lower end of the concrete 7, rotate the buckle main body 6, and attach the male screw body 5,
By moving the turnbuckle 5 forward and backward from the buckle main body 6 (expanding and contracting the turnbuckle 3), the length of the fixture 1 is adjusted and tightened, thereby making the fixture 1,
The fixing tool bodies 2, 2' of 1' are brought into close contact with the waterproof sheets 8, 8', respectively, and the bent corners of the waterproof sheets 8, 8' are fixed. In this state, the abutting portions 10 and 10' of the waterproof sheets 8 and 8' are heat-sealed to connect the waterproof sheets 8 and 8'.

After heat sealing, the fixtures 1, 1' are removed from the waterproof sheets 8, 8' by rotating the main body of the buckle to loosen the fixtures 1, 1'.

According to this seat fixture 1, since the turnbuckle 3 is provided, the length of the fixture 1 can be easily and reliably adjusted by rotating the buckle main body 6. The length of the tool 1 can be easily made to match the total circumferential length of the tunnel, and the fixture main body 2 can be placed in a tensioned state.

Therefore, by attaching this fixture 1 to the bent corner of the sheet 8, the bent corner of the sheet 8 can be reliably fixed along the circumferential direction of the tunnel, and the sheets 8 to be connected to each other can be securely fixed. , 8', when the ends of the sheets 8, 8' are bent and butted together, the bent corners of these sheets 8, 8' can be fixed, accurately positioned, and butted, and the edges of the sheets 8, 8' can be It is possible to butt against each other under tension without causing the sides to slacken. Therefore, when heat-sealing the abutting portions of these sheets 8, 8', the workability of heat-sealing is good, the heat-sealing can be performed easily and reliably, and the heat-sealing is completed completely. Both sheets 8, 8' are connected without any gap. Further, this seat fixing tool 1 is provided with a turnbuckle 3, and by simply rotating the main body 6 of the turnbuckle 3, the fixing tool 1 can be rotated.
The length of the seat 8 can be freely adjusted, and therefore, the operability is very good when fixing the seat 8 or removing it from the tunnel 8, so that the seat 8 can be fixed or unfixed efficiently. Can be done.

In the above embodiment, the fixing device main body 2 is formed into a long strip shape, but its shape is not limited to that shown in the drawings. In addition, in the above embodiment, the turnbuckle 3 was used to adjust the length of the fixture 1, but the structure of the turnbuckle 3 is not limited to the above embodiment, and the turnbuckle 3 is
Instead of this, an appropriate length adjustment member that can be similarly expanded and contracted in the length direction may be used. Furthermore, although the above embodiment describes the case where the sheets are connected to each other by heat sealing, the same effect can be obtained when the sheets are bonded with adhesive or the like, and the gist of the present invention also applies to other configurations. Various changes can be made within this range.

As explained above, the fixing device of the present invention includes a fixing device body formed in the shape of a long strip, and length adjustment members that are extendable and contractible in the length direction and are attached to both ends of the fixing device body in the length direction. and a hook member attached to one end of each of these adjustment members, the hook member is hooked to a predetermined position of the seat attachment location, and the length is adjusted by expanding and contracting the adjustment member, Since the sheet is fixed by bringing the fixing device body into close contact with the sheet, the sheet, especially its edge side, can be tensioned and fixed securely and stably, and the edges of the sheets can be folded. When bending and butting, it is possible to accurately position and fix the folded corner of the sheet, and therefore it has excellent workability when heat sealing the butt, and its configuration is also comparable. It can be manufactured easily and inexpensively.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view of a sheet fixing device according to an embodiment of the present invention, and Figs. 2 and 3 respectively show a sheet fixing device according to this embodiment applied to fixing a waterproof sheet. FIG. 2 is a cross-sectional view and a partially omitted cross-sectional perspective view showing an example. 1, 1'... Seat fixture, 2... Fixture body, 3... Turnbuckle, 4... Hooking member, 5
...Male thread body, 6...Buckle main body, 8, 8'...
... Tarpaulin.

Claims (1)

[Claims for Utility Model Registration] 1. A fixing device body formed in the shape of a long strip, length adjustment members that are extendable and contractible in the length direction attached to both ends of the fixing device body in the length direction, and adjustment thereof. and a hook member attached to each end of the member, and the hook member is hooked to a predetermined position of the seat attachment location, and
A seat fixing device, characterized in that the length of the adjusting member is adjusted by expanding and contracting, and the fixing device body is brought into close contact with the seat to fix the seat. 2. The seat fixing tool as set forth in claim 1 of the utility model registration claim, wherein the length adjusting member is a turnbuckle comprising a buckle main body having a threaded portion and a screw body that is screwed into the threaded portion of the buckle main body so as to be reciprocatable. .