JPH047323Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is installed on the outside of external scaffolding during renovation and finishing of the outer wall of a building to prevent workers from falling on the scaffolding and to prevent dust generated during construction work. , relates to a protective sheet tensioning device for preventing materials from falling to the outside.

(Conventional technology) Conventionally, when renovating the exterior wall of a building, the method was to install the external scaffold first and then apply a protective sheet to the outer surface of the scaffold, so it was necessary to take measures to prevent falls during the assembly of the external scaffold. The structure had not been taken into consideration.

(Problems to be solved by the invention) As a result, there was a risk of workers falling while assembling external scaffolding and materials etc. falling to the outside.

In view of the above points, the present invention has been developed so that it can be stretched independently on the outside of the scaffold separately from the external scaffold, and furthermore, it can be stretched upward sequentially according to the degree of assembly of the scaffold. To provide a protective sheet tensioning device that can prevent workers from falling to the outside and workers from falling.

(Example) Figure 1 is a cross-sectional view of the protective sheet stretched to the top and stopped on an external scaffold, Figure 2 is a cross-sectional view of the protective sheet stretched to the top of the scaffold in the middle of assembly. FIG. 3 is a front view, and FIG. 4 is a detailed view showing the relationship between the wire rope and the fastener. 1 is a wire rope whose proximal end is fixed to a rooftop parapet with a mounting bracket, and whose distal end is a pulley. It is a guide rod made of a single pipe in which the rope guide 2 is supported by a support fitting, and it protrudes to the outside of the scaffold to be assembled, and the wire rope guide 2 positions at the tip of each guide rod 1 are equally spaced (1.8 m intervals). It is arranged so that 3 is a wire rope (diameter 8 mm) that is fixed to the base end of each guide rod 1 with a fixing metal fitting, is guided by the wire rope guide 2 and hangs down, and the lower end is fixed with an anchor bolt or the like driven into the ground. . The fixing part of the roof-side end of the wire rope 3 is not limited to the base end of the guide rod 1, but may be any other part of the building. 4 is a protective sheet (width: 1.8 m, height: 5.1 m), stretched between each wire rope 3, 3, and eyelets 5 are provided at regular intervals (30 cm intervals) in the longitudinal direction on both side edges. There is. In the figure, there are two wire ropes between each wire rope 3 and 3 above and below.
An example is shown in which connected single unit protective sheets are used. Reference numeral 6 is a spring-shaped stopper (made of a spring stainless steel wire wound with a diameter of 2 mm) that is spirally wound so as to form a large diameter part and a small diameter part, and is inserted into the wire rope 3. The large diameter portion is inserted through the eyelet 5 of the protective sheet 4, and the small diameter portion is formed so as to go around only the wire rope 3 without being inserted through the eyelet 5.

When the protective sheet 4 supported by the fasteners 6 inserted into the wire rope 3 is raised upward along the wire rope 3, the protective sheet 4 and the fasteners 6
When held and raised, the stopper 6 slides on the wire rope 3 and the protective sheet 4 also rises. When you release your hand at the desired position to stop the stopper 6 and the protective sheet 4, the eyelet insertion part of the stopper 6 is pulled downward by the weight of the protective sheet 4, and the stopper 6 is spring-shaped and easily deforms. The large diameter portion moves downward and comes into close contact with the wire rope, and the small diameter portion also comes into close contact with the wire rope to tighten and grip the wire rope.
It stops at that position. The fastener 6 shown in the middle and lower part of FIG. 4 is in this state. When holding the stopper 6 and the protective sheet 4 and trying to pull it up, the close grip between the stopper 6 and the wire rope 3 is released and the wire rope 3 slides, as shown in the upper part of FIG. You can pull it up freely.

Therefore, when assembling the external scaffolding 8 on the outside of the building 7, the protective sheet 4 is pulled up to the top of the tier to be assembled, and when the tier is assembled and the tier above it is assembled, the protective sheet 4 is pulled up to the top of the tier. 4
pull up. FIG. 2 shows the state when the upper stage is about to be assembled after half of the assembly has been completed. By fixing the protective sheet 4 to the scaffolding 8 each time the assembly of each stage is completed, it is possible to prevent the worker from falling.

(Effects of the invention) As described above, according to the invention, each part of the protective sheet can be stopped at any position on the wire rope with the fasteners, so it can be pulled upward depending on the assembled state of the external scaffold. It is possible to prevent materials from falling to the outside during scaffold assembly. Furthermore, if a protective sheet is fixed to the scaffold each time the assembly of each stage of the scaffold is completed, it is possible to prevent workers from falling accidents.

[Brief explanation of drawings]

1 to 4 show embodiments of the present invention,
Figure 1 is a vertical cross-sectional view showing the protective sheet stretched to the top and fixed to the external scaffolding, and Figure 2 is a vertical cross-sectional view showing the protective sheet stretched to the top of the scaffold while the external scaffolding is being assembled. 3 are front views showing the state in which the protective sheet is stretched to the top, and FIG. 4 is a detailed view showing the relationship between the fasteners inserted through the protective sheet and the wire rope. 1...Guide rod, 2...Wire rope guide,
3... Wire rope, 4... Protective sheet, 5...
...eyelet, 6...fastener, 7...building, 8...external scaffolding.

Claims (1)

[Scope of utility model registration request] A plurality of guide rods each having a base end fixed to the roof of a building and having a wire rope guide at the tip are arranged so that the wire rope guide positions are equally spaced, and one end of each is fixed to the roof of the building and each Each wire rope is suspended through each wire rope guide and the other end is fixed on the ground surface, and the small diameter of the spring-like stopper is spirally wound to form a large diameter part and a small diameter part. A protective sheet tensioning device, characterized in that a large diameter portion of the spring-like stopper is inserted into each eyelet formed on the side edge of each unit protective sheet.