JP2023176152A - Temporary safety device - Google Patents

Abstract

To provide a temporary safety device that can simplify a structure and reduce costs.SOLUTION: A temporary safety device P is configured to open and close freely between an unfolded position in which a pair of main members 2 are arranged outside a temporary scaffold 9 so that they are horizontally spaced from each other and project diagonally upward, and a folded position in which they are arranged along an outer surface of the temporary scaffold 9. A flexible sheet material 7 is stretched between the pair of main members 2 at both edges. A lower pier 5 is fixed to the temporary scaffold 9 corresponding to a lower edge 72 of the sheet material 7, and the sheet material 7 is attached to the lower pier 5 with the lower edge 73 in a state of covering a gap between lower end sides of the pair of main members 2 and the temporary scaffold 9 by a lower side portion 71.SELECTED DRAWING: Figure 5

Description

The present invention relates to a sheet-type morning glory device that is assembled as a protective fence for catching falling objects on temporary scaffolding at a construction site.

BACKGROUND ART In temporary scaffolding installed at a construction site, a morning glory device is usually assembled as a protective fence for catching falling objects in order to prevent materials, tools, etc. from falling to the ground. Morning glory devices generally include a panel type device using a hard panel material and a sheet type device using a soft sheet material. In the case of the sheet type, both side frames are attached to a pair of supports of the temporary scaffold so as to be rotatable in the vertical direction, and both side edges of the sheet material are fixed to the both side frames. The frame on both sides, together with the sheet material, is provided so that it can be opened and closed between an unfolded position in which it is placed diagonally upward on the outside of the temporary scaffold, and a folded position in which it is placed vertically along the supports of the temporary scaffold. There is.

In such a sheet-type morning glory device, as shown in Patent Documents 1 and 2 below, in order to cover the gap between the lower end side of both side frames and the temporary scaffold, a lower part of a sheet material is placed in the gap. I try to do that. In order to maintain the lower side of the sheet material in the above-mentioned gap, it is common to tie both sides of the lower edge of the sheet material to the supports of a temporary scaffolding or the like with strings.

Patent No. 5999539 Patent No. 6360983

However, in the conventional sheet-type morning glory devices shown in Patent Documents 1 and 2, although both sides of the lower edge of the sheet material are fixed with strings, the middle of the lower edge is not fixed and is in a free state. Therefore, there was a problem in that the middle of the lower edge of the sheet material was separated from the temporary scaffolding, exposing the gap, and the function of catching falling objects was likely to deteriorate.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a morning glory device that can improve the function of catching falling objects.

In order to solve the above problems, the present invention includes the following means.

[1] A morning glory device installed on a temporary scaffold as a protective fence for catching falling objects,
The lower end sides of a pair of main members spaced horizontally on the outside of the temporary scaffold are connected so as to be rotatable in the vertical direction, so that the pair of main members protrude diagonally upward on the outside of the temporary scaffold. It is configured to be able to be opened and closed between the unfolded position and the folded position along the outer surface of the temporary scaffold.
A sheet material having softness is stretched between the pair of main materials by attaching both side edges thereof to the pair of main materials,
A lower crosspiece is fixed to the temporary scaffold corresponding to the lower edge of the sheet material,
A morning glory device characterized in that a lower edge portion of the sheet material is attached to the lower crosspiece in a state in which the lower edge portion of the sheet material covers the lower end sides of the pair of main materials and the gap between the temporary scaffolding.

[2] A plurality of mounting pins are provided on the lower crosspiece at intervals along its length,
A plurality of eyelets are provided along the lower edge of the sheet material,
2. The morning glory device according to item 1, wherein the lower edge of the sheet material is attached to the lower crosspiece by each eyelet being hooked to the corresponding attachment pin.

[3] The morning glory device according to the preceding clause 2, wherein the lower crosspiece is arranged above a position intersecting with the outer surface of the temporary scaffold on the downward extension line of the pair of main members so that there is no gap from the outer surface of the temporary scaffold. .

According to the morning glory device of invention [1], the lower crosspiece is fixed to the temporary scaffolding, and the lower edge of the sheet material stretched between the pair of main materials is attached to the lower crosspiece, so that the sheet material The entire lower edge of the sheet material can be attached to the lower crosspiece, but a part of the lower edge of the sheet material, especially the middle part, is separated, exposing the lower end of the main material and the gap between the temporary scaffolding. It is possible to prevent this, the above-mentioned gap can be reliably covered, and the falling object receiving function can be improved.

According to the morning glory device of invention [2], a plurality of attachment pins are provided on the lower rail, and a plurality of eyelets are provided on the lower edge of the sheet material, and each eyelet is hooked to a corresponding attachment pin. Therefore, the lower edge of the sheet material can be easily assembled to the lower crosspiece simply by hooking the eyelet to the mounting pin, and the assembling workability can be further improved.

According to the morning glory device of invention [3], the gap between the main material and the temporary scaffolding can be more reliably covered with the sheet material, and the falling object receiving function can be further improved.

FIG. 1 is a side view showing a morning glory device according to an embodiment of the present invention in an expanded state. FIG. 2(a) is a side view showing the morning glory device of the embodiment in a folded state, and FIG. 1(b) is an enlarged view of a portion surrounded by a dashed line in FIG. 1(a). FIG. 3 is a plan view showing the morning glory device of the embodiment. FIG. 4 is an exploded plan view showing the morning glory device of the embodiment. FIG. 5 is an enlarged side view showing the vicinity of the mounting bracket in the morning glory device of the embodiment. FIG. 6 is an exploded view of FIG. FIG. 7 is an enlarged plan view showing the vicinity of the mounting bracket in the morning glory device of the embodiment. FIG. 8 is an exploded view of FIG. 7. FIG. 9 is a plan view showing the sheet material in the morning glory device of the embodiment.

1 and 2 are side views showing a morning glory device P according to an embodiment of the present invention, and FIGS. 3 and 4 are plan views showing the morning glory device P. In the following description, in order to facilitate understanding of the invention, the right side of FIG. 1 and FIG. 3 and 4, and the left-right direction toward the paper of FIGS. 3 and 4 will be referred to as the "left-right direction (horizontal direction)."

As shown in these figures, the morning glory device P of this embodiment is assembled on the outside of the temporary scaffolding 9, and is attached to a pair of adjacent pillars 91 of the temporary scaffolding 9 via mounting brackets 1, respectively. , a pair of diagonal members 3 provided on the pair of support columns 91 via the mounting brackets 1, an upper crosspiece 4 provided between the upper ends of the pair of main members 2, and a pair of main members 2. The basic components are a lower crosspiece 5 provided correspondingly between the lower end sides of the , a steady rest material 6 provided between the pair of main members 2, and a sheet material 7 stretched between the pair of main members 2. It is prepared as follows.

As shown in FIGS. 1 to 8, a total of four mounting fittings 1 are attached to each of the mounting positions of the pair of main members 2 and the pair of diagonal members 3 on the support columns 91 of the temporary scaffolding 9. The mounting bracket 1 has a rear side formed vertically along the support column 91, and a clamp 12 is fixed to the rear side. This mounting bracket 1 is fixed to a support post 91 via a clamp 12 and is arranged so as to protrude outside of the temporary scaffolding 1.

Two joints 13 are provided on both sides of the mounting bracket 1. The joint 13 includes a mounting portion 14 forming its base end (lower side) and a fitting portion 15 forming its distal end (upper side). is formed small.

The mounting portions 14 of this joint 13 are pivotally attached to both left and right sides of the front lower part of the mounting bracket 1 via bolts 16, and the left and right joints 13 are individually rotated in the vertical direction about the bolt pivot position as a fulcrum. It is attached freely (swivelable).

Furthermore, a gravity lock 81 serving as a mounting pin 8 is fixed to the upper surface of the mounting portion 14 of the joint 13 so as to protrude upward. The gravity lock 8 is constituted by a well-known folding pin type T-shaped gravity lock which is prevented from coming off by rotating (bending) a folding pin rotatably provided at the tip thereof under its own weight.

A gravity lock 81 as a mounting pin 8 is fixed below the clamp 12 on the rear side of the mounting bracket 1 so as to protrude forward via a flange 17 (see FIGS. 5 and 6, etc.).

In addition, in this embodiment, the mounting bracket 1 is used as a common member of two adjacent morning glory devices P. That is, a plurality of morning glory devices P are assembled horizontally on the outer surface side of the temporary scaffolding 9, and one joint 13 of each mounting bracket 1 is connected to the main component of one of the two morning glory devices P adjacent to each other. The other joint 13 of each mounting bracket 1 is used to attach the main member 2 or the diagonal member 3 of the other morning glory device P.

The main member 2 is made of a square pipe material, and the lower end side (base end side) is formed in a size that allows the fitting portion 15 of the joint 13 to fit therein. With the lower end side of this main material 2 fitted into the fitting part 15 of the corresponding joint 13 on one side of the two upper mounting brackets 1, the main material 2 is attached to the joint by a pinning method using a pin (not shown) or the like. 13 in a manner that prevents it from coming off. In this way, the pair of main members 2 are attached to the pair of support columns 9 at intervals in the horizontal direction via the two upper mounting brackets 1, and each main member 2 is freely rotatable in the vertical direction in conjunction with the joint 13. (swingably) connected to the support column 9.

Furthermore, a latching pin 82 as the attachment pin 8 is fixed to the top end of the main member 2 . This locking pin 82 is formed in an L-shape such that its tip side (upper end side) is bent forward.

Furthermore, a plurality of gravity locks 81 as attachment pins 8 are fixed to the intermediate portion of the main member 2 at appropriate intervals in the length direction of the main member.

As shown in FIGS. 1 and 2, the diagonal member 3 includes a diagonal member main body 31 made of a square pipe that constitutes its upper side, a base end member 32 made of a square pipe that constitutes its lower end (base end), It includes an elastic member 33 that connects the diagonal member main body 31 and the proximal end member 32.

The elastic member 33 is fixed with its lower end fitted into the upper end of the proximal end member 32. Furthermore, the lower side of the diagonal member main body 31 is slidably fitted onto the upper side of the elastic member 33. By fixing the diagonal main body 31 at a desired sliding position by means of regulating means such as pins or bolts (not shown), the diagonal 3 can be expanded and contracted and fixed at a desired length. .

In a state where the lower end side of the base end member 32 of this diagonal member 3 is fitted into the fitting portion 15 of the joint 13 on one side of the two lower mounting brackets 1, a pinning method using a pin (not shown), etc. As a result, the base end member 32 of the diagonal member 3 is connected and fixed to the joint 13 in a manner that prevents it from coming off. In this way, the pair of diagonal members 3 are attached to the pair of pillars 9 via the two lower mounting brackets 1 at a distance in the horizontal direction, and at a position below the pair of main members 2, and each diagonal member 3 is coupled to the support column 9 in conjunction with the joint 13 so as to be freely rotatable (swingable) in the vertical direction.

Furthermore, the upper end portion of each diagonal member 3 is rotatably connected to the upper lower surface side of the corresponding main member 2. As shown in FIG. 1, by restricting the expansion and contraction of the pair of diagonal members 3 in a shortened state, the pair of main members 2 open to the outside of the temporary scaffolding 9 and protrude slightly diagonally upward. As shown in FIG. 2, the pair of main members 2 are held in the deployed position (open state) and the expansion/contraction movement of the pair of diagonal members 3 is restricted in the extended state, as shown in Fig. 2. It is configured to be set in a folded position (closed state) in which it is vertically arranged along the corresponding support columns 91 of 9.

As shown in FIGS. 3 and 4, the upper crosspiece 4 includes an upper crosspiece main body 41 made of a square pipe, and a length adjusting member made of a square pipe provided at one end of the upper crosspiece main body 41 (the right end in FIGS. 3 and 4). 42. One end of a slide pipe 43 made of a square pipe is fitted into the end of the length adjustment member 42 on the side of the upper crosspiece body 41, and the other end of the slide pipe 43 is fixed to the end of the upper crosspiece body 41. It is slidably fitted into the end. By sliding the length adjustment member 42 with respect to the upper crosspiece main body 41 via the slide pipe 43, the upper crosspiece 4 is configured to be expandable and retractable, and can be fastened with bolts (not shown) at a desired sliding position. It is configured to be fixable by a regulating means. In this way, the length of the upper crosspiece 4 can be adjusted within a predetermined range.

Further, on the upper side surface of the upper crosspiece body 41, latching pins 82 as attachment pins 8 are fixed at predetermined intervals along the length direction of the upper crosspiece body 41. Each of the locking pins 82 is formed in an L-shape such that its tip side (upper end side) is bent forward.

Both ends of the upper crosspiece 4 are fixed to the upper ends (tips) of the pair of main members 2 by a pinning method using pins (not shown), so that the upper crosspiece 4 is connected between the upper ends of the pair of main members 2. It is installed so that it spans the

The lower rail 5 includes a lower rail main body 51 made of a square pipe, and a length adjustment member 52 made of a square pipe provided at one end of the lower rail main body 51 (the right end in FIGS. 3 and 4). One end of a slide pipe 53 made of a square pipe is fitted into the end of the length adjustment member 52 on the side of the lower rail main body 51, and the other end of the slide pipe 53 is attached to the end of the lower rail main body 51. It is slidably fitted into the end. By sliding the length adjusting member 52 with respect to the lower frame main body 51 via the slide pipe 53, the lower frame 5 is configured to be expandable and retractable, and can be fastened with bolts (not shown) at a desired sliding position. It is configured to be fixable by a regulating means. In this way, the length of the lower crosspiece 5 can be adjusted within a predetermined range similarly to the upper crosspiece 4.

Further, connecting pieces 55 are fixed to both ends of the lower crosspiece 5 so as to protrude to both sides, and each connecting piece 55 is formed with a pin fixing hole (not shown).

Further, on the lower crosspiece main body 51, latching pins 82 as attachment pins 8 are fixed to the front side surface (the surface facing the upper crosspiece 4) at predetermined intervals along the length direction of the lower crosspiece main body 51. . Each of the locking pins 82 is formed in an L-shape such that its tip side (upper end side) is bent upward.

The corresponding gravity locks 81 of the two upper mounting brackets 1 are inserted into the pin fixing holes of the connecting pieces 55 at both ends of the lower bar 5, and both ends of the lower bar 5 are fixed to the corresponding mounting brackets 1. be done. In other words, the lower crosspiece 5 is arranged between the lower end sides of the pair of main members 2, and is provided in a non-interlocking state with respect to the main members 2.

Here, the lower crosspiece 5 is arranged above a position that intersects with the outer surface of the temporary scaffolding 9 on the downward extension line of the pair of main members 2 (the pair of joints 13), and the lower crosspiece 5 is located above the outer surface of the temporary scaffolding 9 ( There is no gap from the outer surface of the pair of support columns 91, and it is arranged along the outer surface of the temporary scaffolding 9.

The steady rest member 6 provided between the pair of main members 2 includes a length adjusting member 62 made of a square pipe and provided at one end of the steady rest member main body 61. One end of a slide pipe 63 made of a square pipe is fitted into the end of the length adjustment member 62 on the steady rest material body 61 side, and the other end of the slide pipe 63 is fixed to the steady rest material main body. It is slidably fitted into the end of 61. By sliding the length adjusting member 62 with respect to the steady rest main body 61 via the slide pipe 63, the steady rest member 6 is configured to be expandable and contractible, and is bolted at a desired slide position using bolts (not shown). It is configured such that it can be fixed by regulating means such as the like. In this way, the length of the steady rest material 6 can be adjusted within a predetermined range.

One end of this steady rest member 6 is rotatably connected to the upper end (tip) of one main member (for example, the main member on the right side in FIGS. 3 and 4) 2, and the other parts of the steady rest member 6 are The end is rotatably connected to the lower end (base end) of the other main member 2 (for example, the left main member in FIGS. 3 and 4).

As shown in FIG. 9, the sheet material 7 is arranged so as to be stretched between the pair of main materials 2. The sheet material 7 is provided so that its width La is the same length as the interval between the pair of main materials 2 (including the width dimension of both main materials 2). Furthermore, in this embodiment, the vertical dimension (vertical dimension) Lb of the sheet material 7 is formed to be longer by a predetermined amount than the length dimension of the main material 2 to which the joint 13 is connected.

In this embodiment, the sheet material 7 of this embodiment includes a sheet material body 70 corresponding to the length dimension Lb1 of the main material 2 + joint 13, and a sheet material body 70 extending from the lower edge of the sheet material body 70. and a lower portion 71 corresponding to a portion of a predetermined amount Lb2.

In this embodiment, eyelets 75 for attaching the sheet material are provided on the outer peripheral edge of the sheet material 7 of this size, that is, on both side edges, the upper edge, and the lower edge. Specifically, the eyelets 75 on both side edges are provided corresponding to the mounting pins 8 (gravity locks 81) of the pair of main members 2, and the eyelets 75 on the upper edge are provided corresponding to the mounting pins 8 (gravity locks 81) of the upper crosspiece 4. The eyelets 75 on the lower edge are provided corresponding to the attachment pins 8 (latching pins 82) of the lower crosspiece 5. Note that the eyelets 75 at the lower end positions of both side edges of the sheet material 7 are provided corresponding to the mounting pins 8 (gravity locks 81) of the mounting bracket 1 that connects both ends of the lower crosspiece 5. Further, the second eyelet 75 from the bottom on both side edges of the sheet material 7 is provided corresponding to the attachment pin 8 (gravity lock 81) of the joint 13.

Further, the area between the sheet material main body 71 and the lower side part 72 in the sheet material 7 is an area corresponding to a curved part 73 to be described later, and the curved part 73 has a drainage hole formed by an eyelet. 76 is formed.

Each eyelet 75 of the sheet material 7 is hooked to the corresponding mounting pin 8 of the mounting bracket 1, the main material 2, the upper crosspiece 4, and the lower crosspiece 5, so that the sheet material 7 is placed between the pair of main materials 2. , it is attached so as to extend from the upper crosspiece 4 to the lower crosspiece 5. In this attached state, the lower part 71 of the sheet material 7 is folded upward in the gap between the lower end side of the pair of main members 2 (the lower end part of the joint 13) and the pair of supports 91 of the temporary scaffolding 9. It is bent into a substantially U-shape, and its folded end edge (lower edge) 73 is attached to the lower crosspiece 5. Note that the drain holes 76 of the sheet material 7 are arranged corresponding to the curved portions (bottom portions) 72.

In the morning glory device P of this embodiment assembled on the temporary scaffolding 9 in this way, as shown in FIGS. Between the unfolded position in which it is arranged so as to protrude, and the folded position in which the pair of main members 2 (and sheet materials 7) are arranged vertically along the supports 91 of the temporary scaffolding 9 as shown in FIG. It is configured to open and close freely.

In the unfolded and folded postures, as described above, the expansion and contraction of the pair of diagonal members 3 is restricted to the length corresponding to the unfolded and folded postures, so that the main member 2 is supported by the diagonal members 3 and is in the unfolded posture. and held in a folded position.

In addition, in the morning glory device P, one end of a rope 85 is connected to each tip (upper end) of the pair of main members 2, and the other end of the rope 85 is connected from a position above the main member 2 into the temporary scaffold 9. It is pulled in and fixed. This rope 85 is used to perform opening/closing operations and assembling operations of the morning glory device P.

For example, when folding the diagonal member 3 from the unfolded position, the sliding movement of the diagonal member 3 by the slide regulating means is released so that the diagonal member 3 can be expanded and contracted, and then the rope 85 is pulled to rotate the main member 2 upward, and the main member 2 is 91 to restrict the expansion and contraction of the diagonal member 3 and to fix the other end of the rope 85 to the temporary scaffold 9 at a predetermined position. This keeps it in the folded position.

On the other hand, when unfolding from the folded position, after releasing the expansion/contraction restriction of the diagonal member 3, loosen the rope 85 and rotate the main member 2 downward to take the predetermined diagonal position, and then expand/contract the diagonal member 3. and fixes the rope 85. This keeps it in the deployed position.

On the other hand, an example of the procedure for assembling the morning glory device P of this embodiment to the temporary scaffolding 9 is as follows. Needless to say, the assembly procedure of the morning glory device P in this embodiment is not limited to the following procedure.

First, the mounting bracket 1 of the morning glory device P is fixed to a pair of adjacent columns 91 on the temporary scaffolding 9. In this case, two fittings 1 are fixed on the upper side for the pair of main members 2, and two fittings 1 are fixed on the lower side for the pair of diagonal members 3.

Next, prepare a main material unit in which the diagonal material 3 is connected to the main material 2, and with the main material unit folded so that the diagonal material 3 is superimposed on the main material 2, use the rope 85 to move the main material unit to the assembly position. After pulling up the main material unit, the lower end of the main material 2 of the main material unit is attached to the upper mounting bracket 1, and the lower end of the diagonal member 3 is further attached to the lower mounting bracket 1. In this way, the pair of main material units are assembled to the pair of support columns 91. In this state, the main member 2 and the diagonal member 3 are arranged vertically along the support column 91 and are in a folded state.

Subsequently, after connecting the upper crosspiece 4 and the steady rest material 6 between the pair of main members 2, the lower crosspiece 5 is assembled between the two upper mounting brackets 1.

Thereafter, the eyelets 75 on the upper edge of the sheet material 7 are hooked to the mounting pins 8 of the upper crosspiece 4 and attached, and the eyelets 75 on both side edges are hooked and attached to the attachment pins 8 of the main material 2. In this case, the attachment pins 8 provided on the joints 13 of the attachment fittings 1 are left free without engaging the corresponding eyelets 75 on both side edges. Subsequently, the eyelets 75 at the lower edge are hooked to the lower crosspiece 5 and attached, and then the corresponding eyelets 75 at both side edges are hooked to the mounting pins 8 of the joint 13 of the mounting bracket 1 to attach the sheet material 7. installation is completed.

Thereafter, after loosening the rope 85 and opening the main member 2 to take a predetermined diagonal posture, expansion and contraction of the diagonal member 3 is restricted, and the rope 85 is fixed. Thereby, the morning glory device P can be assembled into the unfolded position.

It should be noted that a plurality of the above-mentioned morning glory devices P are successively assembled in parallel on the outer surface of the temporary scaffolding 9 without gaps.

As described above, according to the morning glory device P of this embodiment, the lower edge 73 of the sheet material 7 stretched between the pair of main materials 2 is attached to the lower crosspiece 5 of the temporary scaffolding 9, so that The entire area of the edge 73 can be attached to the lower crosspiece 5, and a problem such as a part of the lower edge 73, especially the middle part coming off the temporary scaffold 9 and a gap being exposed, can be reliably prevented. Therefore, the lower end portion 71 of the sheet material 7 can reliably cover the lower end side of the pair of main members 2 and the gap between the support columns 91, and a sufficient function for catching falling objects can be ensured.

In addition, the lower edge 73 of the sheet material 7 is hooked and connected to the mounting pin 8 of the lower crosspiece 5 via the eyelet 75, so that it can be easily connected by simply hooking the eyelet 75 to the mounting pin 8. The lower edge part 73 of the sheet material can be attached to the lower crosspiece 5, and the assembly workability is further improved compared to, for example, the case where the lower edge part of the sheet material 7 is tied to the temporary scaffolding 9 with a string or the like. I can do it.

Moreover, according to the morning glory device P of this embodiment, since it has a simple configuration in which the lower side portion 71 of the sheet material 7 covers the above-mentioned gap, for example, the gap between the lower end side of the pair of main members 2 and the temporary scaffolding 9. In addition, compared to the case where a cover plate that can be opened and closed is separately assembled, the number of parts can be reduced, and assembly workability can be improved, the structure can be simplified, and costs can be reduced.

Further, according to the morning glory device P of the present embodiment, since the drain hole 76 is formed in the substantially U-shaped curved portion (bottom portion) 72 of the sheet material 7, rainwater that has fallen on the sheet material 7 is drained. Rainwater is now reliably discharged downward through the hole 76, and problems such as rainwater accumulating in the curved portion 72 of the sheet material 7 can be reliably prevented, and, for example, the work environment and sanitary conditions can be maintained in good condition. be able to.

Furthermore, since the lower crosspiece 5 to which the lower edge of the sheet material 7 is attached is arranged without any gap on the outer surface of the temporary scaffolding 9, the lower part 71 of the sheet material 7 is placed between the lower end side of the pair of main members 2 and the support 91. The gap can be more reliably covered, and the function for catching falling objects can be more reliably secured.

In the above embodiment, the present invention has been explained by taking as an example a case in which the diagonal members are applied to the morning glory device P of the type that expands and contracts. However, the present invention is not limited thereto. It can also be applied to a type of morning glory device that is supported so as to be slidable in the vertical direction.

Further, in this embodiment, a gravity lock or an L-shaped hanging pin is used as the mounting pin for hooking the eyelet, but the present invention is not limited to this. Any configuration may be adopted as long as it can be stopped.

The morning glory device of the present invention can be assembled onto a temporary scaffold and suitably used as a protective fence for catching falling objects.

2: Main material 5: Lower crosspiece 7: Sheet material 71: Lower part 72: Curved part 73: Lower edge 76: Drain hole 9: Temporary scaffolding 91: Support P: Morning glory device

Claims (3)

A morning glory device installed on a temporary scaffold as a protective fence for catching falling objects,
The lower end sides of a pair of main members spaced horizontally on the outside of the temporary scaffold are connected so as to be rotatable in the vertical direction, so that the pair of main members protrude diagonally upward on the outside of the temporary scaffold. It is configured to be able to be opened and closed between the unfolded position and the folded position along the outer surface of the temporary scaffold.
A sheet material having softness is stretched between the pair of main materials by attaching both side edges thereof to the pair of main materials,
A lower crosspiece is fixed to the temporary scaffold corresponding to the lower edge of the sheet material,
A morning glory device characterized in that a lower edge portion of the sheet material is attached to the lower crosspiece in a state in which the lower edge portion of the sheet material covers the lower end sides of the pair of main materials and the gap between the temporary scaffolding. A plurality of mounting pins are provided at intervals along the length of the lower crosspiece,
A plurality of eyelets are provided along the lower edge of the sheet material,
The morning glory device according to claim 1, wherein the lower edge of the sheet material is attached to the lower crosspiece by each eyelet being hooked to the corresponding attachment pin. The morning glory device according to claim 2, wherein the lower crosspiece is arranged above a position intersecting the outer surface of the temporary scaffold on a downward extension line of the pair of main members so that there is no gap from the outer surface of the temporary scaffold.

Images