JP3218711U - Opening and closing type fallen object protection device - Google Patents

Abstract

An open / close-type falling object protection device that firmly supports a protection panel is provided. An openable fall object protection device 10 is a device that can stop a protection panel 11 at a set position by operating an electric device 13, and winds or loosens a winding member 14. A protection panel 11 that is rotatably attached to the lifting mechanism 12 and the temporary scaffolding 1 and is connected to and supported by the winding member of the winding mechanism from the upper side, and a lower surface portion 11g of the protection panel. The support member 20A is supported from below. [Selection] Figure 2

Description

  The present invention relates to an open / close type fallen object protection device.

In construction sites of various building structures, a fall object protection device is provided in order to prevent building materials and the like from falling onto roads around the construction site.
For example, in Patent Document 1, a cage provided on a side wall of a building structure can be tilted up and down with the side wall side as a fulcrum, and a rope with a pull-out device connected to the upper edge of the cage is movable. A formula trap is disclosed.
In the configuration as disclosed in Patent Document 1, in a state where the scissors are unfolded from the side walls, the scissors are supported from obliquely above by the rope of the winding device. In such a configuration using a rope, there is a limit to increasing the support strength of the kite even if it is intended to firmly support the kite in case of falling heavy objects falling.

Further, Patent Document 2 discloses a fallen object protection apparatus comprising: a hoisting mechanism part; a protective panel interlocking with a winding member of the hoisting mechanism part; and a chain as a stopping means for stopping the protective panel at a set position. Is disclosed.
In the falling object protection device as disclosed in Patent Document 2, when the protection panel is deployed to the set position, the winding member is in a slack state, and the protection panel is supported obliquely from above by a chain as a stopping means. Has been. For this reason, in order to firmly support the protective panel against a heavy fallen object, it is necessary to thicken the chain and increase its strength. However, even if the chain is thickened, there is a limit to increasing the support strength of the protective panel.

Further, Patent Document 3 discloses a fallen object receiving device whose base end portion is rotatably connected to the scaffold construction body, and extends downward from the free end side of the fallen object reception apparatus, and the distal end is freely rotatable to the scaffold construction body. The structure provided with the rod-shaped support means connected with this is disclosed.
In the configuration disclosed in Patent Document 3, since the falling object receiving device is supported only from below by the rod-shaped support means, there is a limit to increasing the support strength.

Japanese Utility Model Publication No. 2-72748 Japanese Patent Laid-Open No. 10-25902 JP 2013-60732 A

  The problem to be solved by the present invention is to provide an openable fallen object protection device that can firmly support a protection panel.

The present invention employs the following means in order to solve the above problems.
In other words, the open / close type fallen object protection device of the present invention is an open / closed type fallen object protection device that can stop the protection panel at a set position by operating a hoisting device, and winds a winding member. A wind-up mechanism part that is taken up or loosened, a protective panel that is rotatably attached to a temporary member or a housing, and is connected to and supported by the wind-up member of the wind-up mechanism part from above, and a lower surface part of the protective panel. And a supporting member that supports the protective panel from below.
According to such a configuration, the base end of the protective panel is rotatably attached to the temporary member or the housing. Thus, by rotating the protective panel about the base end, the folding position of the protective panel along the temporary member or the housing and the deployed position where the distal end of the protective panel is separated from the temporary member or the housing are provided. The posture of the protective panel can be changed between. Thereby, when conveying materials and equipment in the vertical direction with a crane or the like, the protective panel can be folded when a strong wind occurs. In the unfolded position, the protection panel is connected and supported from above by the winding member of the hoisting mechanism, and is supported from below by the support member. As a result, the protective panel is supported from above and below, and the support strength is increased. As a result, the protective panel can be firmly supported in the open / close type fallen object protective device.

In one aspect of the present invention, in the open / close type falling object protection apparatus of the present invention, one end of the support member is rotatably attached to the temporary member or the housing, and the other end of the support member is The support panel is rotatably attached to the lower surface of the protection panel, and the support member is installed to be extendable.
According to such a configuration, when the protective panel is in the folded position, the support member is between the one end attached to the temporary member or the housing and the other end attached to the lower surface of the protective panel. The distance increases and the stretched state is obtained. In addition, when the support member is in the deployed position of the protective panel, the distance between the one end and the other end of the support member is narrowed and the support member is shortened. Therefore, when rotating the protective panel, it is not necessary to remove the support member, and the protective panel can be easily opened and closed.

In one aspect of the present invention, the open / close-type falling object protection device of the present invention is configured such that the winding member is connected to the second winding member and the second winding member at a midpoint where the winding mechanism portion and the protection panel are connected. 3 is branched into three winding members, each of which is attached to the upper surface of the protective panel.
According to such a configuration, the winding member of the winding mechanism unit supports the load of the protection panel by the second winding member and the third winding member that are branched in the middle. In this way, the protection panel is supported by the second winding member and the third winding member from above, so that the protection panel is compared with the case where the protection panel is supported by only one winding member. It can be supported stably.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the opening-and-closing type fallen object protection apparatus which can support a protection panel firmly.

It is a front view which shows the state which provided the opening-and-closing type fallen object protection apparatus in embodiment of this invention in the side surface of the temporary scaffold. FIG. 2 is a side view of the falling object protection device of FIG. 1, showing a state in which a protection panel is arranged at a deployment position. It is a figure which shows the state which has arrange | positioned the protection panel of the falling object protection apparatus of FIG. 2 in the folding position. It is a side view which shows the opening-and-closing type fallen object protection apparatus in the modification of embodiment of this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment for implementing an open / close type falling object protection apparatus according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view showing a state in which an openable fallen object protection device according to an embodiment of the present invention is provided on a side surface of a temporary scaffold. FIG. 2 is a side view of the falling object protection device of FIG. 1, and FIG. 2 shows a state in which the protection panel is arranged at the unfolded position. FIG. 3 shows a state in which the protective panel of the falling object protective device of FIG. 2 is arranged in the folded position.
As shown in FIGS. 1 and 2, the openable fallen object protection apparatus 10 is provided in a temporary scaffold (temporary member) 1, for example. The temporary scaffold 1 is provided along the outer side surface of the building structure (not shown) used as construction object. The temporary scaffold 1 is configured using, for example, a frame scaffold 2, a scaffold plate 3, and a brace 4. The frame scaffold 2 has a gate shape, and includes a pair of vertical frames 2a provided at intervals in the horizontal direction, and an upper horizontal frame 2b that connects upper ends of the pair of vertical frames 2a. . The frame scaffolds 2 are arranged in parallel to each other at intervals in the horizontal direction along the outer surface (not shown) of the building structure. Each frame scaffold 2 is arranged so as to be orthogonal to the outer surface (not shown) of the building structure. The scaffold plate 3 is constructed between the upper horizontal frames 2b of the frame scaffold 2 facing each other. The brace material 4 is provided in an X-shape between the frame scaffolding materials 2 facing each other in the horizontal direction on each of the side surface 1a on the outer surface side of the building structure and the side surface 1b on the side separated from the outer surface in the temporary scaffold 1. It has been.
Such a frame scaffold 2, the scaffold plate 3, and the brace 4 are provided by being laminated in a plurality of layers in the vertical direction.

In the temporary scaffold 1 as described above, the falling object protection device 10 is provided on the side surface 1b on the side separated from the outer surface of the building structure. The falling object protection device 10 includes a protection panel 11, a hoisting mechanism 12, and a support member 20A.
The protection panel 11 has a rectangular plate shape. In the protective panel 11, the base end portion 11 a on one side thereof is rotatably attached via a support metal 15 provided on the side surface 1 b of the temporary scaffold 1. Here, the support hardware 15 is provided at both ends of the base end portion 11 a of the protection panel 11. Thereby, the protection panel 11 rotates around the base end portion 11 a side, so that the distal end portion 11 b approaches and separates from the side surface 1 b of the temporary scaffold 1.

  The hoisting mechanism unit 12 rotates the protection panel 11 around the base end portion 11a. The winding mechanism unit 12 includes an electric device (winding device) 13 and a winding member 14. The electric device 13 is disposed above the base end portion 11 a of the protection panel 11. The electric device 13 is an electric chain block, and is attached to a single tube 16 attached to the side surface 1 b of the temporary scaffold 1. The electric device 13 winds or loosens (feeds out) the winding member 14 such as a chain or a wire. The winding member 14 is branched into a second winding member 14A and a third winding member 14B in the middle of its length direction. The second winding member 14 </ b> A and the third winding member 14 </ b> B are attached to the upper surface portion 11 f at both ends of the distal end portion 11 b of the protection panel 11.

  Thereby, the protection panel 11 is connected and supported from above by the winding member 14. As shown in FIG. 3, when the protection panel 11 winds the winding member 14 by the electric device 13 of the hoisting mechanism portion 12, the upper surface portion 11 f is folded (set position) along the side surface 1 b of the temporary scaffold 1. ) P1. In this state, the protection panel 11 has the distal end portion 11b positioned substantially vertically above the proximal end portion 11a. As shown in FIG. 2, when the protection panel 11 loosens and winds the winding member 14 with the electric device 13, the distal end portion 11 b is separated from the side surface 1 b of the temporary scaffold 1 around the proximal end portion 11 a. The rotation position is set to the development position (set position) P2. At the deployed position P2, the protection panel 11 is inclined so that the distal end portion 11b is positioned obliquely upward with respect to the proximal end portion 11a. Thus, the protection panel 11 opens and closes between the folding position P1 and the unfolding position P2 by operating the electric device 13. That is, the protection panel 11 can be stopped at two set positions, that is, the folding position P1 and the unfolding position P2.

The support member 20A is connected to the lower surface portion 11g of the protection panel 11, and supports the protection panel 11 from below. One end portion 20s of the support member 20A is rotatably attached to the temporary scaffold 1 via a connecting hardware 17 so as to be freely rotatable. The other end portion 20t of the support member 20A is attached to the lower surface portion 11g of the protection panel 11 via a connecting hardware 18 so as to be rotatable. The supporting member 20A includes a first member 21 on the one end 20s side and a second member 22 on the other end 20t side. The second member 22 has a cylindrical shape, for example. The first member 21 includes a rod portion 21 b that is inserted inside the second member 22. The rod portion 21 b of the first member 21 is provided so as to be able to protrude and retract in the axial direction from the second member 22. As a result, as the protection panel 11 is rotated between the folding position P1 and the unfolded position P2, the support member 20A rotates around the one end 20s while the first member 21, the second member 22, Is relatively displaced and its entire length expands and contracts.
The support member 20A has a through hole (not shown) that communicates with the rod portion 21b of the first member 21 and the second member 22 in a state where the protection panel 11 is positioned at the unfolded position P2. . By inserting the pin 25 into the through hole of the rod portion 21b of the first member 21 and the through hole of the second member 22, the expansion and contraction of the support member 20A can be restrained at the deployed position P2. As a result, the load of the protection panel 11 is reliably supported from below, and the protection panel 11 at the deployment position P2 is prevented from being blown up by strong winds or the like.

According to the opening / closing type fallen object protection apparatus 10 as described above, the opening / closing type fallen object protection apparatus 10 that can stop the protection panel 11 at the set position by operating the electric device 13. A winding mechanism portion 12 that winds or loosens the winding member 14, a protective panel 11 that is rotatably attached to the temporary scaffold 1, and is connected and supported from above to the winding member 14 of the winding mechanism portion 12, and a protective panel 11, and a support member 20 </ b> A that supports the protection panel 11 from below.
According to such a configuration, the protection panel 11 is rotatably attached to the temporary scaffold 1. Thereby, by rotating the protective panel 11, between the folding position P1 along which the protective panel 11 is placed along the temporary scaffold 1 and the unfolded position P2 where the tip 11b of the protective panel 11 is away from the temporary scaffold 1, The posture of the protection panel 11 can be changed. Therefore, the protection panel 11 can be folded when materials and equipment are conveyed in the vertical direction by a crane or when a strong wind is generated. At the deployed position P2, the protection panel 11 is connected and supported from above by the winding member 14 of the hoisting mechanism 12, and is supported from below by the support member 20A. As a result, the protection panel 11 is supported from above and below, and the support strength is increased. As a result, the protection panel 11 can be firmly supported.
Further, as compared with the configuration in which the protection panel 11 is supported only by either the winding member 14 or the support member 20A, the load on the protection panel 11 supported by each of the winding member 14 and the support member 20A can be reduced. . Therefore, the number of installation of the winding member 14 can be reduced, or the diameter of the winding member 14 can be reduced.

One end portion 20s of the support member 20A is rotatably attached to the temporary scaffold 1, the other end portion 20t of the support member 20A is rotatably attached to the lower surface portion 11g of the protection panel 11, and the support member 20A is telescopic. It is installed as possible.
According to such a configuration, the support member 20A has the one end 20s attached to the temporary scaffold 1 and the other end attached to the lower surface 11g of the protection panel 11 when the protection panel 11 is in the folded position P1. The distance to the portion 20t increases, and the support member 20A extends. Further, the support member 20A is in a state where the distance between the one end portion 20s and the other end portion 20t is narrowed and the support member 20A is contracted when the protection panel 11 is at the deployed position P2. Therefore, when the protection panel 11 is rotated, it is not necessary to remove the support member 20A, and the protection panel 11 can be easily opened and closed.

The winding member 14 is branched into a second winding member 14 </ b> A and a third winding member 14 </ b> B in the middle of the connection between the winding mechanism 12 and the protection panel 11, and each of the winding members 14 of the protection panel 11. It is attached to the upper surface part 11f.
According to such a configuration, the winding member 14 of the hoisting mechanism unit 12 supports the load of the protective panel 11 by the second winding member 14A and the third winding member 14B branched in the middle. . As described above, the protection panel 11 is supported from above by the second winding member 14A and the third winding member 14B, so that the protection panel 11 is supported by only one winding member 14. Thus, the protection panel 11 can be stably supported. Further, the winding member 14 is branched into the second winding member 14A and the third winding member 14B, so that the second winding member 14A and the third winding member 14B are taken up by the winding member. It can be made thinner than 14.

(Modification of the embodiment)
The open / close type falling object protection apparatus of the present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications are conceivable within the technical scope thereof.
For example, in the above embodiment, the protective panel 11 is supported from the lower side by the telescopic support member 20A, but the present invention is not limited thereto.
FIG. 4 is a side view showing an openable fallen object protection apparatus according to a modification of the embodiment of the present invention.
For example, as shown in FIG. 4, the support member 20B has one end 20p slidable in the vertical direction along the guide rail 26 provided in the temporary scaffold 1, and the other end 20q is a protective member. A panel 11 is rotatably attached to the lower surface portion 11g of the panel 11 via a connecting metal piece 19. The support member 20B is not extendable and its entire length does not change.
The guide rail 26 is provided below the protective panel 11 so as to extend in the vertical direction on the side surface 1 b of the temporary scaffold 1. The guide rail 26 is made of, for example, a channel material having a C-shaped cross section, and has a groove (not shown) continuous in the vertical direction. One end 20p of the support member 20B is inserted inside the groove of the guide rail 26. One end 20p of the support member 20B is provided with a pair of guide rollers 27 projecting on both sides in the width direction, and the pair of guide rollers 27 is supported along the inner groove of the guide rail 26, thereby supporting the support member 20B. One end 20p of the member 20B slides in the vertical direction along the guide rail 26.
Here, the one end 20p of the support member 20B and the guide rail 26 are each formed with a through hole (not shown) that penetrates in the radial direction when the protective panel 11 is disposed at the unfolded position P2. . By inserting the pin 28 into the through hole of the one end portion 20p of the support member 20B and the through hole of the guide rail 26, the protection panel 11 is disposed at the unfolded position P2, and the one end portion 20p of the support member 20B is The sliding movement along the guide rail 26 can be restricted. As a result, the protection panel 11 can be fixed in the vertical direction at the deployed position P2, and the load on the protection panel 11 is reliably supported from below, and the protection panel 11 at the deployed position P2 is blown up by a strong wind or the like. To prevent.

(Other variations)
In the above-described embodiment and its modifications, the protective panel 11 is fixed to the deployed position P2 by the pins 25 and 28. However, the expansion and contraction of the support member 20A and the one end of the support member 20B are performed by appropriate stoppers. You may make it suppress a 20p slide.
Moreover, although the electric apparatus 13 was used as a winding apparatus of the winding mechanism part 12, you may use a manual chain block.
In addition, the temporary scaffold 1 is not limited to the one using the frame scaffold 2, and may be assembled by a so-called single pipe.
Moreover, in the said embodiment and its modification, although the fall object protection apparatus 10 was provided in the temporary scaffold 1, you may make it provide the fall object prevention apparatus 10 in the housing of a building structure.
Moreover, in the said embodiment and its modification, although expansion / contraction of 20 A of support members was restrained with the pins 25 and 28, and the slide movement along the guide rail 26 of the one end part 20p of the support member 20B was restrained, In the case where it is not necessary to consider the blow-up of the protection panel 11, the pin 25, 28 may be omitted. In this case, in the above-described embodiment, the protection member 11 is fixed and supported at the deployed position P <b> 2 by the support member 20 </ b> A being maximally contracted and further reduction being restricted. Moreover, in the said modification, the one end part 20p of support member 20B moves to the lowest end of the range which can move the guide rail 26, and the further downward movement is restrict | limited, The protection panel 11 is expand | deployed. Fixed and supported at position P2.
In addition to this, the configuration described in the above embodiment can be selected or changed to another configuration as appropriate without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Temporary scaffold (temporary member) 14A 2nd winding member 10 Falling object protection apparatus 14B 3rd winding member 11 Protection panel 20A, 20B Support member 11f Upper surface part 20p, 20s One end part 11g Lower surface part 20q, 20t The other End 12 Lifting mechanism P1 Folding position (setting position)
13 Electric device (winding device) P2 Deployment position (setting position)
14 Winding member

Claims (3)

An open / closed fall object protection device that can stop the protection panel at the set position by operating the hoisting device,
A winding mechanism for winding or loosening the winding member;
A protective panel that is rotatably attached to a temporary member or a housing, and is connected and supported from above to the winding member of the hoisting mechanism;
An opening / closing type fallen object protection device comprising a support member connected to a lower surface portion of the protection panel and supporting the protection panel from below. One end of the support member is rotatably attached to the temporary member or the housing,
The other end of the support member is rotatably attached to the lower surface of the protective panel,
2. The openable fallen object protection apparatus according to claim 1, wherein the support member is installed to be extendable and contractible.   The winding member is branched into a second winding member and a third winding member in the middle of connecting the hoisting mechanism portion and the protection panel, and each of them is an upper surface portion of the protection panel. The opening / closing type fallen object protection apparatus according to claim 1 or 2, wherein

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