JP3038761U - Frame for fall prevention of roof construction - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a fall prevention frame for roof construction capable of preventing material falling from the roof and a fall accident of a worker during construction of a building. SOLUTION: Two obstruction members 8 and 9 formed in a rectangular shape.
Are connected to each other at a variable angle by a plurality of hinges 10, and locking recesses 7 provided on the vertical columns 4 of the temporary scaffold 2 are provided on both side ends of the closing member 8.
If the engaging portion 11 that engages with is provided to form the fall-prevention frame 6, and the closing member 9 is hung between the vertical columns 4 of the temporary scaffold 2 and the closure member 9 is laid down on the roof 3, the tip of the roof 3 and the temporary scaffolding are fixed. The gap generated between the two can be closed, and it is possible to prevent the material from dropping from the gap and the accident of the worker falling.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a fall-prevention frame used when performing construction on the roof of a building.

[0002]

[Prior art]

 When constructing a new building or on a roof for renovation, for example, when building a roof or roofing tiles, build a temporary scaffold around the building and use this temporary scaffold to climb up and down the roof and raise and lower materials. I am trying to do.

[0003]

[Problems to be solved by the device]

 By the way, since the temporary scaffolding is installed with a predetermined space between it and the tip of the roof, there is a gap between the tip of the roof and the temporary scaffolding, and materials on the roof drop from this gap, There is a problem that an accident occurs in which the worker falls.

Therefore, an object of this invention is to be able to close a gap formed between the tip of the roof and the temporary scaffolding, and reliably prevent a material from dropping from the gap and a fall accident of an operator. The purpose is to provide a fall prevention frame for roof construction.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the invention of claim 1 is to connect two closing members to each other at a variable angle with a hinge, and to provide a vertical column of a temporary scaffold at both end portions of the closing member. This is a structure in which a hook-shaped engaging portion that engages with the stop recess is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, the closing member is formed by stretching the mesh on a rectangular frame body, and the two closing members are joined to each other by a hinge. On the other hand, a structure is adopted in which hook-shaped engaging portions that bend in a hook shape are provided on both side ends of the frame body of the closing member.

Here, for the hinge, the hinge plates fixed to the respective frame bodies are overlapped, and the overlapping portions of both plates are joined with bolts and nylon nuts in a half-tightened state, so that the angles of both blocking members can be freely set. At the same time, it has a structure that holds the angle setting state.

[0008]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the temporary scaffolds 2 provided around the building 1 are arranged so as to form a predetermined space with the tip of the roof 3, and the temporary scaffolds 2 have a constant space. It is composed of a combination of a vertical pillar 4 standing upright and a horizontal pipe 5 that joins the vertical pillars 4 vertically adjacent to each other at an appropriate interval. A fall-prevention frame 6 for removably closing the gap created between them is detachably attached.

As shown in FIGS. 4 to 6, the vertical pillar 4 constituting the temporary scaffold 2 is provided with socket-shaped locking recesses 7 penetrating in the upward and downward directions on the outer peripheral surface, and both ends of the horizontal pipe 5 are provided. The portion is provided with a hook-shaped engaging portion (not shown) that engages with the locking concave portion 7, so that the vertical pillar 4 and the horizontal pipe 5 are coupled by the engagement of the locking concave portion and the engaging portion 7. It has become.

As shown in FIGS. 3 and 4, the falling-prevention frame 6 has two closing members 8 and 9 connected by a plurality of hinges 10 so as to be variable in angle, and one end portion of each closing member 8 at both ends. At the position near the upper end, a hook-shaped engaging portion 11 that engages with the locking recess 7 provided in the vertical column 4 is provided.

The closing members 8 and 9 are formed by stretching a metal mesh 13 on a rectangular frame 12 made of an angle material or the like and reinforcing the frame 12 with a flat bar 14. The two closing members 8 and 9 have their frame bodies 12 and 12 connected to each other by a hinge 10.

As shown in FIG. 3 (C), the hinge 10 has two hinge plates 15 and 16 welded to each other's frame bodies 12 and 12 overlapped with each other, and the overlapped portion is bolt 17 and nylon. It is formed by connecting the nuts 18 in a semi-tightened state and fixing a stopper 19 to the rear edge of one hinge plate 16.

Both of the closing members 8 and 9 can be deployed from the two-folded state in which they are overlapped with each other by the connection with the hinge 10, and the two-folded state and the developed state of a desired angle are held by the coupling tightening force of the hinge 10. The angle can be changed manually.

On the other hand, as shown in FIG. 3 (A) and FIG. 5, the engaging portions 11 provided at both end portions of the closing member 8 are formed in a hook shape whose tip is bent downward in a hook shape. By engaging the engaging portions 11 with the locking recesses 7 of the vertical columns 4 on both sides, the closing members 8 and 9 can be mounted between the vertical columns 4 and the vertical columns 4 on both sides can be engaged. become.

The horizontal lengths of the closing members 8 and 9 may be set according to the intervals between the vertical columns 4 of the temporary scaffold 2, and if a plurality of types having different lengths are prepared, the site is prepared. It is possible to meet the conditions of.

Further, the locking recesses 7 provided on the vertical columns 4 are provided on four sides of the vertical columns 4 in the illustrated case, but they may be provided on two opposite sides of the vertical columns 4.

The fall-prevention frame of the present invention has the above-mentioned structure, and is located above the tip of the roof 3 above the temporary scaffold 2 provided around the building 1, as shown in FIGS. 1 and 2. Between the vertical columns 4 on both sides, the fall-prevention frames 6 that are folded in half are faced, and the engaging portions 11 provided on both end portions of the closing member 8 are engaged with the locking recesses 7 of the vertical columns 4. Then, the closing member 8 is attached between the vertical columns 4 on both sides in a suspended state, and the fall prevention frame 6 is attached between the vertical columns 4 in this way so as to surround the periphery of the roof 3.

In this state, the other closing member 9 is pushed down against the one closing member 8 suspended between the vertical columns 4, the hinge 10 is tilted toward the roof 3 side as a fulcrum, and the tip thereof is abutted on the roof 3. If contacted, the one end closing member 8 suspended between the vertical columns 4 and the other end closing member 9 located between the lower end of the closing member 8 and the upper surface of the roof 3 are used to temporarily attach the roof 3 to the tip of the roof 3. The gap created between the scaffolds 2 can be closed.

As a result, the fall prevention frame 6 can prevent accidents such as a material falling from the roof 3 or a worker falling.

When raising or lowering a material on the roof 3 or raising or lowering a worker, the other closing member 9 is pushed up so that both closing members 8 and 9 are folded in two, and the tip of the roof 3 and the temporary scaffolding 2 are formed. Open the gap.

[0022]

[Effect of the invention]

 As described above, according to the present invention, it is possible to close the gap created between the tip of the roof and the temporary scaffolding by simply attaching it in a suspended manner between the vertical columns of the temporary scaffolding, and the material from the roof can be closed. It is possible to reliably prevent the occurrence of a fall or a worker's fall accident and improve the safety of work on the roof of a new construction or reform.

Further, since the two closing members are connected to each other in a variable angle, if they are folded in half while suspended on the temporary scaffolding, the gap between the tip of the roof and the temporary scaffolding is opened to raise and lower the material. There is no hindrance to the lifting of workers and workers.

[Brief description of the drawings]

FIG. 1 is a front view showing a usage state of a fall prevention frame according to the present invention.

FIG. 2 is a plan view of the above.

FIG. 3A is a front view of a falling prevention frame, FIG. 3B is a side view of the same, and FIG. 3C is an enlarged side view of a hinge portion.

FIG. 4 is a perspective view showing a usage state of the fall prevention frame.

FIG. 5 is a front view showing the main part of the above.

FIG. 6 is a plan view of the same main part.

[Explanation of symbols]

 1 Building 2 Temporary Scaffolding 3 Roof 4 Vertical Column 5 Horizontal Pipe 6 Fall Prevention Frame 7 Locking Recesses 8 and 9 Closure Member 10 Hinge 11 Engagement Part 12 Rectangular Frame 13 Metal Mesh 14 Flat Bar 15 and 16 Hinge Plate 17 bolts 18 nylon nuts

Claims (2)

[Utility model registration claims] 1. A hook-shaped engaging portion that engages with a locking recess provided in a vertical column of a temporary scaffold at one end of each of the two closing members, the two closing members being connected by a hinge so that the angle can be changed. Frame for fall prevention in roof construction. 2. The closing member is formed by stretching a mesh on a rectangular frame body, the two closing members are joined together by a hinge, and one of the closing member has hooks at both ends of the frame body. The fall prevention frame for roof construction according to claim 1, wherein a hook-shaped engaging portion that bends into a shape is provided.