JPS5930135Y2 - protective net - Google Patents

Description

[Detailed description of the invention] This invention relates to a protective net that is vertically installed at a predetermined interval from the surrounding wall of a building to prevent falling objects from scattering.The protective net is particularly required to be opened by the wind pressure during strong winds. This invention relates to a protective net that can prevent damage caused by wind pressure by providing cracks at certain locations and allowing wind to flow out through the cracks.

In general, protective nets used to cover the walls of buildings to prevent falling objects from scattering during repairs etc. are made of multiple joists that protrude from each upper edge. By fixing each to the horizontal shaft installed between the tips, and connecting the side edges of the protective net adjacent to the cables hanging from the tips of each joist with binding wires, the net is made into a single piece. It is constructed to cover the building wall with a protective net.

However, when the net is made into one thick protective net like this, the entire surface receives wind during strong winds.
In addition, there is almost no escape for wind that enters between the wall surface and the protective net, and as a result, there is a risk that the entire protective net will be greatly agitated, creating a very dangerous situation. In this method, the binding wires connecting the protective nets are cut to improve the outflow of wind, but this method has the disadvantage that cutting the binding wires and restoring them requires extremely troublesome work.

This invention improves the above-mentioned drawbacks, and will be explained below based on the embodiment shown in the drawings. The projecting beams 2 are attached to the roof parapet 7 of the building at required intervals,
A roller 8 is provided at the upper end of this projecting beam 2.

The curing gondola 5, which can be raised and lowered by itself, has a receiving member 9 on the inner side of its lower part, the end of which contacts the peripheral wall surface 4 of the building to catch falling objects, and the winding drum 10 equipped therewith is fed out. After the cables 11 are supported by the rollers 8, they are tied to desired positions on the roof, and the plurality of curing gondolas 5 suspended by the cables 11 are arranged in a line along the peripheral wall 4 of the building. Arranged horizontally.

The upper end edge of each protective net 1 is attached to a horizontal shaft 13 installed between support rods 12 protruding from both sides of the tip of each of the projecting beams 2 with a hanging tool 14. Both side edges 1a are connected to the cables 11 at predetermined intervals by binding lines 3, etc., and the wall surfaces are covered with a plurality of protective nets 1 integrated in this way.

The present invention provides cracks 16, for example, in an inverted U-shape, which can be opened at a plurality of locations in the protective net 1, and Velcro fasteners 15 for closing the openings at the positions of the cracks 16.
It is made by pasting it on.

Each protective net l-1 suspended from each horizontal shaft 13
The opening created by the crack 16 is always closed by the Velcro fastener 15, and in strong winds, the entire protective net swells greatly due to wind that enters between the wall surface 4 and the protective net 1, or wind that is applied from the outside direction. Velcro fastener 15 due to the wind pressure
The adhesive peels off and the crack 16 opens wide, making it easy for the wind that has flowed in between the protective net 1 and the wall surface 4 to flow out, so that the integrated protective net 1 is exposed to wind pressure over the entire surface and becomes large. It is possible to prevent the fear of being agitated.

Furthermore, when the strong winds subside, the integrated protective net can be recreated and used simply by attaching the peeled Velcro fasteners.

FIG. 5 shows a case in which the shape of the crack 16 is different from that of the previous embodiment, and the state of the crack can be made into various states other than this embodiment.

By having the above-mentioned structure, this device dynamically opens cracks in the protective net due to wind pressure during strong winds, facilitates the outflow of wind, and prevents the protective net from being greatly agitated. In addition, when the wind subsides, the integrated protective net can be recreated and used by simply attaching the Velcro fasteners, making it extremely convenient to use as there is no need to remove the protective net during strong winds. It has the advantage of being

[Brief explanation of the drawing]

Fig. 1 is a front view showing the state in which the present invention is implemented, Fig. 2 is a left side view of the same, Fig. 3 is an enlarged view of the protective net of the present invention,
FIG. 4 is a diagram showing the one in FIG. 3 in an open state, and FIG. 5 is a diagram showing another embodiment. In the drawings, 1 is a protective net, 2 is a projecting beam, 4 is a peripheral wall surface, 5 is a curing gondola, 11 is a cable, 15 is a Velcro fastener, and 16 is a crack.

Claims (1)

[Scope of utility model registration request] In a protective net that is vertically installed at a predetermined distance from the surrounding wall of a building to prevent falling objects from scattering, the protective net is provided with cracks that can be opened at required locations, and the openings are closed. A protective net characterized in that a Velcro fastener is provided in the crack.