KR101622664B1

KR101622664B1 - Safty net for falling

Info

Publication number: KR101622664B1
Application number: KR1020150066772A
Authority: KR
Inventors: 염원경
Original assignee: 승보세이프주식회사
Priority date: 2015-05-13
Filing date: 2015-05-13
Publication date: 2016-05-20

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fall safety net, comprising: a fixed bar installed on an outer wall of an building by an anchor bolt; A roll shaft whose both ends are supported by the fixed bar and rotated by the driving means; A safety net wound around the roll shaft and provided with a front bar at its tip; An arm connected to the middle portion so as to be able to bend by a hinge, one end rotatably connected to the fixed bar, and the other end rotatably connected to the front bar to support a deployed safety net; A wire rope having one end connected to one end of an outer wall of the upper layer and the other end connected to an end of the front bar to support both ends of the front bar; And a control unit.
The present invention can maintain a stable state without being easily rocked in the installed state, and provides a useful effect that can be easily folded or unfolded if necessary.

Description

Safty net for falling

The present invention relates to a fall safety net, and more particularly, to a fall safety net capable of easily installing a fall safety net and easily folding or unfolding the fall safety net when necessary, thereby easily handling a work such as pulling a material out of a building.

When a building is constructed, a fall safety net is installed on the outer wall of the building, so that the safety of the pedestrian and the worker due to the fall of the worker or the fall of various materials is aimed.

In other words, when installing or dismantling gangs or structures for constructing a building and painting the outer wall of a building, it is possible to prevent an accident caused by a fall of an operator, To protect pedestrians and workers, a safety net should be installed on the outer wall of the building.

In a typical conventional safety net, a lower pipe is joined to a bracket fixed to a slab or a balcony of a building by a clamp so as to have a constant inclination, and a falling safety net is extended to the lower pipe. So as to be connected to and supported by the upper layer portion.

However, the falling safety net on the supporting pipe can prevent the falling of the work member or the tool falling from the building to the ground. However, when the worker falls down, it collides with the upper pipe connected to the upper side of the lower pipe, It was.

Patent Document 1 shows an example of a fall safety net that has been conventionally used in the past, and was intended to solve the above problems.

Patent Document 1 discloses a structure in which a lower end of a supporting bar is coupled to a lower bracket by a connecting port and both ends of a fall prevention net are extended between an upper bracket and an end of the supporting bar, Wherein the support bars are integrally joined to the hinge block by integrally joining two steel pipes whose ends are open and whose ends are in contact with each other so as to be in contact with each other, A wire rope is connected between a connecting member of the supporting bar and a second hook formed on an upper portion of the upper bracket and a wire rope is connected between the first hook and the second hook, And a fall prevention network in which an inner wire and an outer wire are inserted in the direction of the arrow.

However, Patent Document 1 also has a problem in that a process of installing a fall safety net is complicated, so that a large amount of work time and manpower are consumed, and most of the work is performed outside the building.

In the conventional fall safety net such as Patent Document 1, since the leading end of the fall safety net is supported by the wire rope, when the wind is blown, the fall safety net collides with the upper side and collides with the outer wall of the building from time to time. It is pointed out that environmental noise is transmitted to the workers as well as to the residents in the vicinity.

Moreover, there is a possibility of damage to the safety net due to the collision with the outer wall of the building due to the wind. Especially, if the wind is folded at such a time, there was a serious problem that the safety net could not function as a safety net at an emergency.

On the other hand, according to the construction of the building, many materials necessary for the construction are put up to the upper layer. The material is raised to the outside of the building by the rope of the crane and supplied to the required floor. At this time, So it is temporarily folded.

In this case also, when the pipe is installed as in the conventional case, it is very troublesome to fold and unfold the safety net individually, and it is pointed out that it is necessary to work from the outside of the building,

1. Korean Patent Publication No. 10-2005-0049325

An object of the present invention is to provide a safety net that can be easily installed and dismantled, which can save working time and minimize the risk of a safety accident.

It is another object of the present invention to provide a fall safety net that can maintain a stable installation state without flowing even when wind is blown.

It is a further object of the present invention to provide a safety net that can be easily folded or unfolded temporarily in an installed state so that efficient work and safety of workers can be achieved.

In order to achieve the above-mentioned object, the present invention is characterized by comprising: a fixing bar installed on an outer wall of an building by an anchor bolt; A roll shaft whose both ends are supported by the fixed bar and rotated by the driving means; The driving means being provided with a gear box on one side of the roll shaft and a rotation shaft for rotating the gear in the gear box protruding upward from one side of the gear box so that a driver groove is formed on the upper side thereof; A safety net wound around the roll shaft and having a plurality of bands formed in a winding direction to maintain tension, and a front bar having a " C " An arm connected to the middle portion so as to be able to bend by a hinge, one end rotatably connected to the fixed bar, and the other end rotatably connected to the front bar to support a deployed safety net; A wire rope having one end connected to one end of an outer wall of the upper layer and the other end connected to an end of the front bar to support both ends of the front bar; And the like.

Therefore, the safety net can be folded or folded as needed while being wound around the roll shaft, and the stable state can be maintained without being swung by the wind by the arm that can be stretched or shrunk.

In particular, a driver groove is formed at the upper end of the rotary shaft, so that the operator can easily operate the rotary driver by using the electric driver.

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In another preferred embodiment of the driving means, a gear box is provided at one side of the roll shaft, and a rotation shaft for rotating the gear in the gear box is protruded upward from one side of the gear box, So that a simple operation can be performed.

In another embodiment of the drive means, a gear box is provided on one side of the roll shaft, and a drive motor for rotating the gear in the gear box is further provided, thereby folding the safety net more conveniently.

The front bar is formed as a 'C' -shaped angle so that an arm folded can be housed inside the front bar, thereby minimizing the portion protruding from the outer wall of the building when the safety net is wound.

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The present invention is modular in that the roll shaft on which the safety net is wound, the fixing bar for supporting the roll shaft, and the safety net to be deployed are modularized, so that installation and dismounting are easy and the operation time can be saved, Thereby providing a minimizing effect.

The present invention provides an effect that a stable installation state can be maintained without being flowed even when the wind is blown in a state where the safety bar is supported by the fixing bar and the arm connected to the fixing bar.

The present invention can be carried out in a simple manner by temporarily folding or unfolding by rotation of the roll axis, thereby providing an efficient operation as well as an operator's safety.

1 is a perspective view showing an unfolded state of a fall safety net according to the present invention;
2 is a perspective view showing a collapsed safety net according to the present invention in a folded state;
Figs. 3A to 3C are views showing an embodiment of a driving means for a roll shaft according to the present invention. Fig.
4 is a side elevational view of the present invention on a building exterior wall.
5 is a perspective view showing an embodiment of a safety net of the present invention;
Figure 6 is another embodiment of a front bar according to the present invention.
7 is a side view of another embodiment of a fall safety net according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, the same reference numerals are applied to the same names.

FIG. 1 is a perspective view showing an unfolded state of a fall safety net according to the present invention, FIG. 2 is a perspective view showing a folded state of a fall safety net according to the present invention, and FIGS. FIG. 4 is a side view illustrating the present invention installed on an outer wall of a building.

1 to 4, the present invention is roughly divided into a fixed bar 10 fixed to an outer wall of a building by an anchor bolt 12, a roll shaft 20 supported by the fixed bar 10, A safety net 30 wound around a roll shaft 20, an arm 40 which is provided so as to be foldable from the fixed bar 10 and which supports the safety net 30, and a front end portion of the safety net 30, And the wire rope 50 is formed of a wire rope.

The fixing bar 10 is fixed to an outer wall of the building 1 by an anchor bolt 12 using a bracket 11 below the opening 2 such as a veranda and the roll shaft 20 is fixed to the fixing And is rotatably installed in a state of being supported by the bar (10).

A safety net 30 made of a net is wound around the roll shaft 20 and a gear box 21 is installed at one side of the roll shaft 20 to rotate by driving a gear installed in the gear box.

3a, a rotary shaft 22 interlocking with the gear of the gear box 21 is provided so as to protrude upward from one side of the gear box 21, and the rotary shaft 22 And the rotation of the roll shaft 20 is performed by rotating the rotation tool 24 by hooking the rotation tool 24 on the ring 23 so that the safety net 30 can be wound or unfolded have.

Here, a handle may be installed on the upper end of the rotary shaft 22 so that the handle can be directly rotated.

3b, a rotary shaft 22 interlocking with the gear of the gear box 21 is provided so as to protrude upward from one side of the gear box 21, and the rotary shaft 22 A driver groove 25 may be formed at an upper end of the drive shaft 26 and rotated using a driver 26 or a power tool.

As another driving means, a drive motor 27 is provided at one end of the roll shaft 20 as shown in FIG. 3C, so that the safety net 30 can be easily wound or unfolded by using the drive motor 27.

5, a front bar 31 is attached to the front end of the safety net 30 to support the front end of the safety net 30 in an extended state. In order to maintain a sufficient tension in a rolled or unfolded state, It is preferable that the band 32 is formed in the longitudinal direction of the rim of the safety net 30. [

The front bar 31 provided at the front end of the safety net 30 is connected to the fixed bar 10 by the arm 40. The arm 40 is connected to the first arm 41 and the second arm 42 When the safety net 30 is folded by the hinge 43 and the safety net 30 is unfolded, the arm 40 is also unfolded to support the safety net 30. When the safety net 30 is wound on the roll axis 20, Is also folded.

A torsion spring (not shown) is installed on the hinge 43 connecting the first arm 41 and the second arm 42 so that the first arm 41 and the second arm 42 are elastically stretched .

6, the front bar 31 is formed as a 'U' -shaped angle, and the end of the second arm 42 is rotatably connected to the inside of the front bar 31 so that when the arm 40 is folded, 40 may be housed inside the front bar 31.

One end of the wire rope 50 is connected to both ends of the front bar 31. The other end of the wire rope 50 is fixed to the upper portion of the building 1 by an outer wall of the building or another fixing tool.

Therefore, the front bar 31 forming the front end of the safety net 30 is always held by the wire rope 50.

7, the wire rope 50 may be replaced with a double pipe 51 which can be expanded and contracted, and may be applied as the double pipe 51. However, considering that the safety net 30 is spread upwardly, It may be applied to a tube having a fixed length without the need for such a tube.

The safety net 30 according to the present invention constructed as described above is very easy to install and operate in a state of being wound by the roll shaft 20, so that efficient operation can be performed. In addition, .

That is, in the opening 2 such as the balcony of the building, the operator can easily expand and collapse the safety net 30 by operating the driving means of the roll shaft 20, so that a quick and convenient operation can be performed.

In addition, since the safety net 30 is supported by the arm 40, it is possible to maintain a stable state without being swung by the wind, so that it is possible to prevent the occurrence of impact or noise due to rocking.

In particular, when crane work of various materials according to the construction work is carried out, it is possible to easily lift and lower the safety net by lifting the safety net and to prevent the safety accident due to the unnecessary work of external work.

1: Building 2: Opening
10: Fixing bar 11: Bracket
12: anchor bolt 20: roll shaft
21: gear box 22:
23: Loop 24: Rotating tool
25: Driver Home 26: Driver
27: drive motor 30: safety net
31: front bar 32: band
40: arm 41: first arm
42: second arm 43: hinge
50: wire rope 51: double pipe

Claims

A fixing bar installed on an outer wall of the building by an anchor bolt;
A roll shaft whose both ends are supported by the fixed bar and rotated by the driving means;
The driving means being provided with a gear box on one side of the roll shaft and a rotation shaft for rotating the gear in the gear box protruding upward from one side of the gear box so that a driver groove is formed on the upper side thereof;
A safety net wound around the roll shaft and having a plurality of bands formed in a winding direction to maintain tension, and a front bar having a " C "
An arm connected to the middle portion so as to be able to bend by a hinge, one end rotatably connected to the fixed bar, and the other end rotatably connected to the front bar to support a deployed safety net; And
A wire rope having one end connected to one end of an outer wall of the upper layer and the other end connected to an end of the front bar to support both ends of the front bar;
And a crash safety net.

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