JPH0745780B2 - Harm prevention material for construction work - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hazard prevention member for construction work.

Conventional technology At present, at the construction site of a new building, the repair work site, the demolition work site, etc., in order to prevent damage to the surroundings due to various falling objects that may occur with the construction, It is customary and obligatory to completely cover the circumference of an object with a hazard prevention member.

As a hazard prevention member used for such a purpose, at present, a wire mesh, various sheets, various non-metallic nets, etc. are often used. The Japanese Industrial Standards (JIS) have been established for such major hazard prevention members.

For example, JIS A 8952-1977 "Sheet for building work"
Standards have been established.

According to this standard, this "construction work sheet" is made of organic fiber woven fabric as a main component and has flame resistance. The type is flame prevention. Items to be used Flameproof type 2: In case of danger prevention from falling objects, the items to be used in combination with wire mesh are specified, as well as the shape / dimension and the spacing of the eyelets. . For example, the dimensions are (width x length) 2,700 mm x 3,600 mm 3,600 mm x 5,400 mm.

In addition to this, as a hazard prevention member for construction work, an organic fiber yarn or a net formed by knitting a string is widely used as a "construction work net", but as this net, , Several kinds of materials having different thickness and mesh size of thread or string are used. In the case of a thick string, instead of forming a net by knitting a string, a net is formed by molding a material.

Currently, the above-mentioned "sheet for construction work" and "net for construction work" are the mainstream as the hazard prevention member for construction work currently in use. The characteristics are compared and shown in the following table.

As you can see from the table above, between the seat and the net,
Each of them has advantages and disadvantages, and therefore, when they are used as a hazard prevention member for construction work, it is necessary to make use of their respective characteristics. In particular,
Among the above characteristics, "breathability" is a factor that determines whether or not this member can withstand wind pressure when this member is exposed to strong wind, and in this respect, the sheet is a net. Is inferior to, while “wind resistance” is
It is a measure of the windbreak effect, and in this respect,
It shows that the seat is superior to the net.

Also, from this table, it is clear that which of these hazard prevention members should be used must be determined in consideration of the type of building, height, surrounding environment and the like.

However, conventionally, it has been customary to install and use only one of these types of harm prevention members for construction work without considering the differences in various characteristics between them. There is. Therefore, in such a case, it is obvious that various inconveniences occur due to the difference in characteristics between them.

DISCLOSURE OF THE INVENTION Therefore, the present invention solves the inconvenience in the conventional construction work hazard prevention member and obtains a harm prevention member for the most appropriate use of various construction work hazard prevention members. ,
That is the subject.

Means for Solving the Problem In order to solve this problem, the present invention provides a hazard prevention member for a construction work, wherein a hazard prevention member having a dimension smaller than a required dimension is used as a sheet for construction work or a construction work. The present invention is characterized in that different kinds of harm prevention members such as a service net are prepared, and at least two kinds of these are appropriately combined to obtain a desired shape and size.

Embodiment Hereinafter, the present invention will be described in detail with reference to FIG. 1 of the accompanying drawings showing an embodiment of the hazard prevention member.

First, FIG. 1 shows, as a first embodiment of the present invention, an embodiment particularly suitable for use in a high place of a building. In this embodiment, as shown in FIG. ,width
BX length L (eg B = 1,800mm; L = 3,400mm or 5,400m
Hazard prevention member 10 having a rectangular contour with m)
However, in the longitudinal direction, there are three rectangular parts 10 of equal area.
_It is divided into ₁ , 10 ₂ and 10 ₃ , and each part 10 ₁ , 10 ₂ , 10 ₃
Are firmly connected to each other along the longitudinal boundary portions 10 ₁₂ and 10 ₂₃ by appropriate means.
Further, tape-like reinforcing members 11 made of an appropriate material are adhered to the front and back of the entire hazard prevention member 10 by an appropriate means, and the damage between the reinforcing members 11 and the reinforcing members 11 is prevented. through the respective portions 10 _1, 10 _2, 10 ₃ edge portion of the preventing member 10, a number of eyelet 12 are drilled at equal intervals.

In the present embodiment, for example, the parts 10 ₁ and 10 ₃
Each of them is composed of a net formed by knitting or shaping a fiber strip having an appropriate thickness so as to have a mesh of a desired size, and an intermediate portion 10 therebetween.
₂ is composed of a sheet having an appropriate thickness.

Since one embodiment of the present invention has such a structure, it is suitable to use the harm prevention member 10 with its longitudinal direction vertical and the eyelets 12 formed in the periphery thereof. When installed around a high place of a building by attaching it to the scaffolding pillars installed in the building with ropes, etc., the highest part and the low part of the building will be composed of a net. The parts 10 ₁ and 10 _{3 that} are located are located in the middle and high places, and 10 ₂ if they are made of seats, and the highest part that receives the strongest wind pressure is usually made of a net. since it is in that portion 10 _1, damage or harm prevention member 10 by this strong wind pressure, under avoiding the risk of out-of-such that the scaffold posts, the effect of preventing harm due scattering to the surroundings falling objects Performed, middle and high altitude well withstand relatively low wind pressure Since it is the part 10 ₂ that is composed of a sheet that can effectively prevent dust and the like from scattering to the outside, the low-high part, which is often a dark place, is Part 10 made up of nets
_Since it is _3, it is possible to secure desired light collection with sufficient translucency and, at the same time, effectively prevent scattering of dust and the like by selecting a small mesh.

Further, FIG. 2 shows a hazard prevention member 20 according to another embodiment of the present invention, which is a hazard prevention member particularly suitable for a low and middle portion of a building. Like the hazard prevention member 10 according to the embodiment shown in FIG. ₁ , it is composed of _three parts 20 ₁ , 20 ₂ , 20 ₃ , and adjacent parts 2
The boundary portion 20 ₁₂ between 0 ₁ and 20 ₂ and the boundary portion 20 ₂₃ between the portions 20 ₂ and 20 ₃ are connected to each other by appropriate means, and the peripheral portion is likewise appropriate. It is reinforced by tape 21 and is also attached to this peripheral part like
Has been drilled through. However, the danger preventing member 20 according to this embodiment, portions 20 ₁ and 20 ₃ is composed of a sheet, the portion 20 ₂ between them, and a net.

When the hazard prevention member 20 according to the present embodiment is used in a low and middle part of a building with the longitudinal direction thereof being vertical as in the case of the hazard prevention member 10, the same operation as in the case of the first embodiment 10 is performed. Or, it is clear that it will be effective.

Although the two embodiments of the present invention have been described above, the combination of the seat and the net in each embodiment may be different from that in each embodiment, or the same members may be arranged adjacent to each other. It is also possible to do so. Also, as an example of the use of each of the above embodiments, the explanation has been given assuming that the respective longitudinal directions are set vertically, but if necessary, they may be set so that the width direction becomes vertical. , Where possible.

Further, the hazard prevention members 10 and 20 according to each embodiment have a predetermined width B and length L, and each of the three portions 10 ₁ , 10 ₂ ,
It is explained that 10 ₃ or 20 ₁ , 20 ₂ , 20 ₃ are rectangular contours formed by connecting adjacent ones together, but generalizing this, Each of the parts 10 ₁ , ..., 20 ₁ , ... is separable, and the opposite edge parts of the adjacent ones are reinforced by tape or the like, and then the end parts are penetrated so as to be fixed 12,22. Hazard prevention member by opening the eyelets corresponding to the above and connecting them with ropes through these eyelets.
It is also possible to form the equivalent of 10 or 20.

In this case, each portion 10 _1, ..., 20 _1, ... a city, respectively, expanded to the size of the harm preventing member 10 and 20, these, to satisfy the desired conditions, appropriate It is also possible to form a hazard prevention member by combining and bonding.

As described above, in the present invention, when installing the hazard preventing member for construction work, a large number of hazard preventing members of different types and having the same or different dimensions are appropriately combined and installed. It also includes a hazard prevention member characterized by the above.

EFFECTS OF THE INVENTION The hazard prevention member for construction work according to the present invention is characterized by having the above-mentioned configuration and being used as described above. Further, according to the present invention, different types of Since the hazard prevention member is installed in the same construction work under appropriate conditions or optimal conditions, various drawbacks of the conventional harm prevention member for this kind of construction work can be eliminated. The present invention provides a novel hazard prevention member.

[Brief description of drawings]

1 and 2 are plan views showing two examples of a hazard preventing member for construction work according to the present invention. 10, 20 ... harm prevention member, 10 _1, 10 _2, 10 _3; 20 _1, 20 _2, 20 ₃
… Divided part, 11,21… Tape, 12,22… Do not fit.

Claims (1)

[Claims] 1. A hazard prevention member for a construction work, wherein a hazard prevention member having a dimension smaller than a desired dimension is prepared from different kinds of harm prevention members such as a construction work sheet or a construction work net, and At least two kinds of the above are appropriately combined to have a required shape and size, and a hazard prevention member for construction work.