JPH0361824B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is applied to the outer surface of scaffolds or towers temporarily erected at construction sites to maintain the safety of workers and prevent tools and construction materials from falling. This invention relates to a protective sheet made of cloth or mesh that prevents.

[Conventional technology]

This type of sheet is known, for example, from Japanese Utility Model Publication No. 55-18431 or Japanese Utility Model Application Publication No. 54-160827. In the inventions disclosed in these publications, a fastener stringer on one side constituting a slide fastener is attached to each side of the outermost periphery of the seat. However, when pasting it on a temporary structure,
When interlocking fastener stringers that are adjacent to each other and removing the seat, it is necessary to completely separate the engaged left and right fastener stringers, so a releasable fitting with a separating function and a fastener element are used to open and close the fastener element. It is necessary to install a slide fastener with a slider.
In this case, the slide fastener is equipped with a slider and a box on one side of the fastener stringer, and a threaded rod on the other side of the fastener stringer, so check the top and bottom and front and back of the adjacent sheets, and check the top and bottom and the back and forth of the next sheet to be stretched. It must be attached with the front and back sides aligned with the previous one. However, this type of sheet generally has a side length of at least 3 m.
This is a large sheet, and since the pasting work is done at a high place, it takes time to check the top and bottom of the sheet and the front and back sides of each sheet, and if you make a mistake, it not only takes time to replace the sheet, but also There were problems such as it being extremely dangerous.

[Problem that the invention seeks to solve]

This invention was developed to improve the problems that occur when pasting the conventional sheets.
To provide a protective sheet for a construction site, which can be pasted without checking the top and bottom and front and back of the sheet when pasting the sheet, and the work is facilitated and speeded up.

[Means for solving problems]

The solution proposed by this invention is to attach a fastener stringer, which is equipped with a fastener element having an interlocking head formed symmetrically on the upper and lower sides and the front and back, to one side edge of the fastener tape, over the entire length of both parallel sides of the sheet body. In addition, each of the left and right fastener stringers is integrally provided with an extension part having the same structure as the fastener stringer at both ends thereof, which protrudes from the seat body and provides a means for preventing engagement and separation of the left and right engaged fastener elements. shall be.

[Effect]

In order to attach the sheet according to this invention, since the fastener stringer attached to the seat body has no distinction between the top and bottom and the front and back, it is possible to attach the complicatedly stretched sheet bodies without checking the top and bottom and the front and back of the sheet. Align both fastener stringers parallel to each other, insert a stayer through one end opening, slide it over almost the entire length, engage both fastener stringers, and then install a stud at the end of the seat body of both engaged fastener stringers. A means to prevent the fastener chain from disengaging, such as by tying the extension part so that it has a knot or by fastening it with a connecting band, etc.
This is to prevent meshing and separation from one end of the meshed fastener chain.

〔Example〕

As shown in FIG. 1, the seat body 1 is formed of a net, and a plurality of reinforcing bands 2 are provided in parallel on both upper and lower edges and in the middle, and each reinforcing band 2 has a plurality of eyelets 3. are spaced at equal intervals, and a pair of fastener stringers 4, 4 constituting a fastener chain are installed over the entire length of the parallel left and right side edges 1a, 1a of the seat body 1, respectively. , 4 are provided with extension portions 4a, 4a at both ends of the side edge 1a of the seat body 1, respectively.

As shown in FIGS. 2 to 5, the fastener stringer 4 has a fastener element 5 fixed to one side edge of a fastener tape 6. The front and back sides are symmetrically formed. Such a fastener element 5 has the advantage that there is no need to check the top and bottom, front and back sides of the sheet body 1 when pasting the sheet. Also the second
As shown in FIG. 4, the fastener element 5
is not fixed to the end of the fastener tape 6 at the extension portion 4a of the fastener stringer 4, and a reinforcing band 8 that wraps the front and back of the fastener tape 6 is attached between the shortest fastener element 5a and the end of the fastener tape 6. This prevents the fastener tape 6 from fraying from the end. Furthermore, a slider guide portion 9 formed of a rigid material such as metal or synthetic resin is connected to the endmost fastener element 5a.
This facilitates insertion of the slider through one end of the pair of fastener stringers. In particular, as shown in FIG. 2, the slider guide portion 9
If the fastener element 5a is attached so as to surround the slider, it is advantageous to prevent the endmost fastener element 5a from wobbling, which tends to get caught on the slider when the slider is inserted.

The structure for attaching the fastener stringer 4 to the net-made seat body 1 is to attach the auxiliary band 10 to the side edge of the seat body 1 on the front and back sides and sew it with a sewing machine, as shown in FIG. 6, or as shown in FIG. As shown, as the fastener tape 6 of the fastener stringer 4, a wide tape folded in half or a two-pronged tape is used, and the sheet main body 1 is sandwiched between the upper and lower tapes and then sewn by a sewing machine. Furthermore, the fastener stringer 4 sewn in this way is attached to the rivet 11 at the end of the sheet body 1.
This reinforces the attachment state between the seat body 1 and the fastener stringer 4.

In order to attach the above-mentioned sheets with fastener stringers, as shown in FIG. Align them, insert the slider 12 from the end, and slide the slider 12 as it is, so that they are engaged as shown in FIG. 9. However, just by meshing,
When a lateral pulling force is applied to both fastener stringers 4, 4, there is a risk that the engaged fastener elements 5, 5 may separate from their ends, so the sheets of both engaged fastener stringers 4, 4 are An extension part 4a from the end of the main body 1,
4a, as shown in Figure 10, keep them engaged and slip them into knots ("Mechanism", published by Gihodo, July 31, 1965).
(Japanese P440) etc.

Although separation of the fastener elements 5, 5 which are connected and engaged is prevented, other means for preventing engagement and separation may be used. This means is shown in FIGS. 11 to 14. In the example shown in FIG. 11, a male body 13 of a snap button is fixed to the end of each fastener stringer 4, and a separate connecting band
Female bodies 15, 15 of snap buttons are provided at both ends of the fastener stringers 4, 4, and after the fastener stringers 4, 4 are engaged and closed, the connecting band 14 is fastened to each other by fitting the snap buttons. It goes without saying that the male and female snap buttons may be installed in reverse order, but the same type of snap button is attached to each fastener stringer 4. Next, in the example shown in FIG. Tighten with a band 16 or a string (not shown). The examples shown in FIGS. 13 and 14 are based on the grip 17.

As shown in FIG. 5, in order to attach the sheet with fastener elements according to the above embodiment to the temporary scaffold 18, each sheet body 1 is lined up and stretched on the outer surface of the scaffold 18 in sequence regardless of its top and bottom and front and back sides. The string 19 passed through the eyelet hole 3 drilled in The slider 12 is engaged with the upper end of the fastener stringers 4, 4, and the extended portion 4a of the engaged fastener stringers 4, 4 from the lower end of the seat body 1,
4a to prevent separation, such as a knot, or after both fastener stringers 4, 4 are engaged over their entire length, the slider 12 is removed, and the engaged fastener stringers 4, 4 are attached at both upper and lower ends of the seat body 1. Both extension parts 4a, 4a of
A means is provided to prevent meshing and separation.

In addition, when sliding the slider 12, it is necessary to pull it up to a high place from the ground, so the tow string 20 is attached to the slider 12, the tow string 20 is attached at a high place, and the tow cord 20 is attached at a high place. All you have to do is subtract . In that case, as shown in FIG. 16, the tow string 20 may be hung on a pulley 21 provided at a high place, and the slider 12 may be slid by pulling the tow string 20 on the ground.

Furthermore, when removing the pasted sheet, the means for preventing meshing separation provided on the extended portions 4a, 4a of the meshed fastener stringers 4, 4 from the ends of the sheet body 1 are removed, and the pair of fastener stringers 4, 4 are removed. The meshed state can be easily released by pulling the stringers 4, 4 from the ends to the left and right.

〔Effect of the invention〕

In the construction site protection sheet according to the present invention, a pair of fastener stringers constituting a fastener chain are attached to each of the parallel side edges of the sheet main body, and the pair of fastener stringers are attached to both ends of the side edges of the sheet main body. Each of the fastener elements is provided with an extension part having the same structure as the fastener stringer, which provides means for preventing the fastener chain from meshing and separating outwardly, and the fastener element has a meshing head formed symmetrically on the top and bottom and on the front and back. With a sheet configured in this way, there is no distinction between top and bottom, front and back, and no matter which end is pasted up, it can be engaged with the fastener stringer of the adjacent sheet body, so it can be used for large sheets. Even if it is, there is no need to check the top and bottom and front and back,
The tensioning operation becomes extremely easy and can be processed quickly. In addition, since the fastener stringer is equipped with an extension at the end of the sheet body, a means to prevent meshing and separation can be added to the extension, ensuring that the fastener stringer does not separate during installation and is attached properly. It is held in

[Brief explanation of drawings]

Fig. 1 is a front view showing the protective sheet for construction sites according to the present invention, Fig. 2 is a front view showing the fastener stringer attached to the sheet body, Fig. 3 is a cross-sectional view of Fig. 2, and Fig. 4 is the fastener stringer. 5 is a cross-sectional view of FIG. 4, FIGS. 6 and 7 are sectional views showing structural examples of attaching the fastener stringer to the mesh sheet body, and FIGS. 8 and 9. , Figure 10 is a front view showing the state when the sheet is pasted, Figure 11 is a front view showing the state when the sheet is attached.
12 and 13 are front views showing various examples of means for preventing meshing and separation in the extended portions of both fastener stringers that are engaged, and FIG.
FIG. 15 is a perspective view showing the grip shown in the figure, FIG. 15 is a perspective view showing the sheet attached to the temporary scaffolding, and FIG. 16 is a perspective view showing the means for closing both fastener stringers. DESCRIPTION OF SYMBOLS 1... Sheet body, 1a... Side edge, 2... Reinforcement band, 4... Fastener stringer, 4a... Extension part, 5... Fastener element, 5a... Endmost fastener element, 6... Fastener tape, 7...Meshing head, 8...Reinforcement band, 9...Slider guide section, 12...Slider, 18...
Temporary scaffolding.

Claims (1)

[Claims] 1. A fastener stringer 4 to which a fastener element 5 having an interlocking head 7 formed symmetrically on the upper and lower sides and the front and back is attached to one side edge of the fastener tape 6 is attached over the entire length of both parallel side edges of the sheet body 1. At both ends of each of the left and right fastener stringers 4, 4, extension parts 4a, 4a having the same structure as the fastener stringer 4, which protrude from the seat body 1 and provide a means for preventing meshing and separation of the left and right fastener elements 5 engaged, are provided. A protective sheet for construction sites, which is characterized by being equipped in one piece.