JP2017137638A - Device and method for installing fall prevention net of flat type skylight window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for installing a fall prevention net of a flat type skylight window that may be kept being installed not only during installation work of the skylight window but after completion of installation, thereby preventing fall by stepping through the skylight window, and the fall prevention net being processed and fitted readily at a site in a way suited to a dimension of a frame of the flat type skylight window.SOLUTION: A fall prevention net made of a wire material is formed in a width that enables mounting on top of a horizontal projection part disposed opposite each other on right and left frames installed on both sides below a flat type skylight window. A bolt facing upward of a pinching metal fitting fixed by pinching in the horizontal projection part of the right and left frames is inserted into a bolt hole on both sides of a lower receiving metal fitting mounted on the horizontal projection part on the right and left frame. A holding metal fitting is mounted on top of the fall prevention net mounted on the lower receiving metal fitting, and the bolt facing upward of the pinching metal fitting that has been inserted into the bolt hole on both ends of the holding metal fitting is fastened with a nut.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a flat skylight fall prevention net mounting apparatus and method for preventing a fall accident of an operator or the like by attaching a fall prevention net to a flat skylight.

  As described in the following patent documents, a conventional fall prevention net is known as a fall prevention net used as a safety measure during construction at a high place. However, the fall prevention net described in this patent document has been devised in order to prevent the worker from falling due to work at a high place such as a scaffold.

  In addition, conventional fall prevention nets for skylights are mainly attached to dome type skylights, and in the case of flat type skylights, they are attached as safety nets to prevent falling during installation work, and are removed after construction is completed. Met. Moreover, such a fall prevention net is a factory standard product, and it is difficult to cut in accordance with the dimension between the skylight mounts at the construction site, resulting in inconvenience that the cost increases.

JP-A-7-217222

  By the way, in the case of conventional flat skylights, if a worker accidentally steps on the lighting plate during maintenance after completion, the glass will fall through the glass plate, etc. Since it was buried in the sky and even the position of the skylight became unknown, there was a concern about the occurrence of a stepping accident.

  The present invention has been made in view of the above circumstances, and by not only during the construction of the skylight, but also permanently after the construction, the fall due to the stepping of the skylight is prevented, and the dimensions between the ceilings of the skylight are reduced. It is another object of the present invention to provide a flat-type skylight fall prevention net attaching device and method that can be easily processed and attached on site.

  In order to solve the above-described problem, the flat skylight fall prevention net mounting device according to claim 1 of the present invention is provided with a fall prevention net having a linear member formed in a net shape on both sides below the flat skylight. Formed in a width that can be placed on top of the horizontal overhanging part that is placed opposite to the left and right bases, and placed on the horizontal overhanging parts of the left and right bases with the upward bolts of the clip clamped between the horizontal overhangs of the left and right bases Insert the clamp into the bolt holes at both ends of the lower support metal, place the presser foot above the fall prevention net placed on the upper part of the lower support metal, and upward the clip metal inserted into the bolt holes at both ends of the presser foot The configuration is such that the bolt is fastened with a nut.

  According to a second aspect of the present invention, there is provided a flat skylight fall prevention net mounting method with a certain interval in the direction of the horizontal overhanging portion of the horizontal overhanging portion arranged opposite to the left and right mounts provided on both sides below the flat skylight. And insert the bolt holes at both ends of the lower bracket into the upward bolts provided on the left and right clamps, and place them on the horizontal overhangs of the left and right mounts. Cover the lower part of the flat skylight by placing a drop-preventing net in which the strip member is formed in a net shape, then place the presser foot on top of the fall-prevention net and insert it into the bolt holes at both ends of the presser foot By fastening the upward bolts of hardware with nuts, the fall prevention net is sandwiched and fixed between the receiving metal and the presser metal that are fixed between the left and right bases at regular intervals in the direction of the beam. The features.

  The flat-type skylight fall prevention net attaching device of the present invention can easily attach a metal fitting using a horizontal projecting portion between the left and right mounts of the skylight at a skylight construction site. In addition, other main materials, such as metal fittings, fall prevention nets, and presser fittings, can be easily cut and processed on site according to the width between the left and right bases of the skylight. Is possible.

  In addition, the clip hardware used in the present invention can be easily attached by being sandwiched between the horizontal overhangs between the left and right bases, and can be moved along the horizontal overhangs as necessary. It is easy to adjust the mounting position according to the size.

  Therefore, such a flat skylight fall prevention net attaching device is easy to attach as described above, and after the attachment, the fall prevention net supported by the support metal is attached to the entire area below the skylight. Therefore, it is possible to prevent a fall accident caused by stepping on a skylight, which has been feared for a long time.

It is a perspective view which shows the state which installed the fall prevention net used for the Example of this invention under the skylight. It is a perspective view which shows the fixed state which pinched | interposed between the receiving metal and the presser metal which provided the fall prevention net used for the Example of this invention in the mount frame on either side. (A) is a top view, a side view, and a front view of the metal fitting used in the embodiment of the present invention, and (b) is a side view showing a state before the metal fitting is sandwiched between the horizontal projecting portions of the gantry. (A) is the top view, side view, and front view which show another aspect of the clamp metal object shown in FIG. 3, (b) is a side view which shows the state before pinching this clamp metal object in the horizontal overhang | projection part of a mount frame. . It is a front view which shows the fixed state which pinched | interposed between the receiving metal and the presser foot which provided the fall prevention net used for the Example of this invention in the right and left base. (A-1) is a perspective view of a base metal fitting used in the embodiment of the present invention, (a-2) is a perspective view showing another embodiment of the base metal hardware, and (b-1) is a perspective view of the present invention. It is a perspective view of the presser foot used, and (b-2) is a perspective view showing another mode of the presser foot. It is a figure which shows the construction method of the fall prevention net used for the Example of this invention, and shows the operation | work which drives a pinching metal object into the horizontal overhang | projection part of a mount frame. The operation | work which attaches the base metal fitting used for the Example of this invention to a right-and-left base is shown. The operation | work which mounts the fall prevention net used for the Example of this invention on the upper part of the receiving metal fitting attached to the right and left base is shown. The operation | work which mounts the presser foot metal on the upper part of the receiving metal hardware and fall prevention net attached to the right and left mount frame used for the Example of invention is shown. The operation | work which fixes the state which pinched | interposed the fall prevention net between the receiving metal and presser foot used for the Example of this invention with a volt | bolt and a nut is shown.

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

  The fall prevention net 1 of this embodiment can be attached to a skylight 2 as shown in FIG. This skylight 2 is provided with a daylighting glass plate 2a between steel frame mounts 3 and 3 provided on the left and right sides. Both ends of the daylighting glass plate 2a are sandwiched between gaskets 4 and the lower part thereof is supported by a glass receiving plate 5. The configuration is as follows. The left and right gaskets 4 are supported by the left and right skylight frames 6 and a U-shaped presser fitting 7 so that the left and right goby folded plates 8 are connected. In such a structure, the left and right bases 3 and 3 of the skylight 2 are fixed to the rising inner side surfaces of the left and right L-shaped angle members 9 and 9 by welding or bolts 9a and nuts 9b. Includes a horizontal overhanging portion 10 that is bent inwardly facing each other. The horizontal overhanging portion 10 has a series of continuous shapes along the flow direction of the skylight 2.

  In such a structure, the skylight 2 shown in FIGS. 1 and 2 is a submerged portion having a downward slope on the front side of the drawings, and a water upper portion having an upward slope in the back direction of the drawings.

  As shown in FIG. 1, the fall prevention net 1 used in the present embodiment is formed by forming a metal wire member 11 made of steel or the like in a net shape in advance, and the size of the plane is a platform 3 on the site. It is possible to cut according to the interval of 3. The width of the fall prevention net 1 is such that both ends of the fall prevention net 1 can be placed on the horizontal overhanging portions 10 and 10 facing the inside of the left and right mounts 3 and 3.

  FIG. 2 is a perspective view showing a state in which the fall prevention net of this embodiment is attached before attaching the skylight 2 to the left and right bases 3 and 3 (partially shown in an exploded state), and the clip metal 12 is shown on the left and right sides. Are attached to the horizontal overhanging portions 10 and 10 of the pedestals 3 and 3.

  As shown in FIG. 3 (a), the clip metal 12 has a U-shape when viewed from the side, and has an opening 12a at the end portion of the pedestals 3 and 3 shown in FIG. 3 (b) (see FIG. 2). ) Can be sandwiched and attached to the horizontal overhanging portion 10). Further, an upward bolt 13a is fixed to the upper part of the clip metal 12, and when it is sandwiched and attached to the horizontal overhanging portion 10 of the gantry 3 and 3, the upward bolt 13a has a tip upward, and a nut 13b is fastened from above. Is possible.

  The clamp 12 shown in FIG. 3 (a) has a reinforcing part 12b formed by deforming a main part into a bulging shape. However, as shown in FIG. 4 (a), a metal plate is simply used. It is also possible to have a simple structure bent into a U shape. Also, in the clamp 12 shown in FIG. 4 (a), an upward bolt 13a is fixed to the upper part, and as shown in FIG. 4 (b), the horizontal overhanging portion 10 of the pedestals 3 and 3 (see FIG. 2) is provided. The nut 13b can be tightened from above the upward bolt 13a.

  As shown in FIG. 5, the horizontal overhanging portions 10 of the left and right bases 3 and 3 are provided facing the inner sides, and the clamp 12 is attached to the left and right horizontal overhanging portions 10 while being sandwiched between the opposite positions. The lower metal fitting 14 is attached to the upper part of the left and right metal fittings 12.

  As shown in FIG. 6 (a-1), the lower metal fitting 14 is a long metal fitting whose end is formed in a reverse concave shape, and has a length that can be accommodated between the left and right frames 3 and 3. (See FIG. 2), bolt holes 14a into which the upward bolts 13a of the clip metal 12 can be inserted are formed at both ends of the lower metal fitting 14.

  On the other hand, the presser foot 15 shown in FIG. 6 (b-1) is a long metal fitting having a length that can be accommodated between the left and right mounts 3 and 3, similarly to the above-described undercarriage 14. Reinforcing portions 15c that rise slightly along both ends of the width are formed, and bolt holes 15a into which the upward bolts 13a of the clip metal 12 can be inserted are formed at both ends. In addition, as shown in FIG.6 (b-2), you may form this presser foot metal 15 only with a long metal plate member.

  Furthermore, as shown in FIG. 6 (a-1), a plurality of bolt holes 14b are formed in the middle of the receiving metal piece 14. Further, as shown in FIG. 6 (b-1) or (b-2), a plurality of bolt holes 15b are formed in the middle of the presser foot 15 at positions corresponding to the bolt holes 14b. It is possible to fasten with a nut by inserting a bolt (not shown) into 14b and the bolt hole 15b. However, in this embodiment, in order to perform the bolt fastening operation easily and quickly, as shown in FIG. 6A-2, FIG. 10, FIG. By inserting and welding the bolt 17a, the bolt 17a can be fixed upward, and the bolt 17a can be inserted into the bolt hole 15b of the presser foot 15 and fastened with the nut 17b as shown in FIG. It is said.

  With such a configuration, as shown in FIG. 5, the upward bolts 13 a of the holding metal parts 12 fixed by being sandwiched between the horizontal overhanging portions 10 of the left and right bases 3 and 3 are inserted into the bolt holes 14 a at both ends of the lower receiving metal object 14, The fall prevention net 1 is placed on the upper part of the lower receiving metal 14, and the presser foot 15 is placed thereon, and the upward bolts 13a of the clip 12 inserted into the bolt holes 15a at both ends of the presser foot 15 are provided. Fasten with nut 13b. Further, the lower metal 14 and the presser foot 15 are attached in a state where the fall prevention net 1 is fixed below the skylight 2 by fastening with the bolts 17a and nuts 17b fixed upward as described above. .

  Next, a construction method for attaching the fall prevention net 1 will be described with reference to FIGS. First, a construction fall prevention safety net 18 is provided below the skylight 2 in order to ensure construction safety. This fall prevention safety net 18 is removed when the construction is completed.

  First, as shown in FIG. 7, the horizontal overhanging portion 10 disposed opposite to the left and right mounts 3 and 3 provided on both sides below the flat skylight 2 is spaced at a certain interval in the row direction (water flow direction). The sandwiched metal object 12 is driven with a driving tool 19 such as a hammer.

  Next, as shown in FIG. 8, bolt holes 14 a at both ends of the lower metal fitting 14 are inserted into the upward bolts 13 a provided on the left and right metal fittings 12 and placed on the horizontal overhanging portions 10 of the left and right bases 3 and 3. State.

  Furthermore, as shown in FIG. 9, the fall prevention net | network 1 is mounted on the upper part of each lower receiving metal object 14, and the lower part of the flat type skylight 2 (refer FIG. 5) attached later shall be covered.

  Next, as shown in FIG. 10, the presser foot 15 is placed on the top of the fall prevention net 1. Further, as shown in FIG. 11, the upper bolts 13a of the clamp 12 inserted into the bolt holes 15a at both ends of the presser foot 15 are fastened with nuts 13b, so that the left and right mounts 3, 3 are spaced at regular intervals in the direction of the beam. The fall prevention net 1 is sandwiched and fixed between the support metal 14 and the presser metal 15 fixed therebetween. Further, in the middle of the base metal 14 and the presser base 15, a bolt 17 a fixed in advance in the middle of the base metal 14 is fastened with a nut 17 b, so that the lower part of the skylight 2 to be attached later is placed as shown in FIG. 5. The prevention net 1 is attached in a state of being covered.

  The flat-type skylight fall prevention net mounting device and method of the present invention are not only installed during the construction of the skylight, but are also permanently installed to prevent the fall due to the stepping of the skylight, and to the dimensions between the skylight mounts. In addition, it can be used as a flat skylight fall prevention net mounting device and method that can be easily processed and mounted on site.

DESCRIPTION OF SYMBOLS 1 Fall prevention net 2 Skylight window 2a Daylighting glass plate 3 Base frame 4 Gasket 5 Glass receiving plate 6 Skylight frame 7 Holding metal fitting 8 Gouge folding plate 9 Angle material 9a Bolt 9b Nut 10 Horizontal overhanging part 11 Line member 12 Clamping object 12a Opening part 12b Reinforcement part 13a Upward bolt 13b Nut 14 Undercarriage 14a Bolt hole 14b on both ends Bolt hole 15 in the middle 15 Presser bolt 15a Bolt hole 15b on both ends Reinforcement part 17a Bolt 17b Nut 18 Fall prevention safety net 19 for construction Insert

Claims (2)

A drop-preventing net formed of a wire member in a net shape is formed to a width that can be placed on the upper part of the horizontal overhanging part that is placed opposite to the left and right bases provided on both sides of the flat skylight. Insert the upward bolts of the clamped metal clamped in the overhanging part into the bolt holes on both ends of the lower metallization mounted on the horizontal overhanging part of the left and right bases, and above the fall prevention net placed on the upper part of the lower metallurgy An apparatus for attaching a fall prevention net for a flat type skylight, wherein the presser foot is placed on the top and the upward bolts of the clamps inserted into the bolt holes at both ends of the presser foot are fastened with nuts. Insert the clamps that are arranged at regular intervals in the direction of the horizontal overhanging part that is placed opposite to the left and right mounts provided on both sides of the flat skylight, and lower the upward bolts provided on the left and right clamps. Insert the bolt holes at both ends of the receiving hardware and place them on the horizontal overhangs of the left and right bases. Cover the bottom, then place the presser foot on the top of the fall prevention net, and fasten the upward bolts of the clamps inserted into the bolt holes at both ends of the presser foot with nuts. A fall-proof net mounting method for flat skylights, characterized in that a fall-prevention net is sandwiched and fixed between a base metal and a presser foot that are fixed between the racks.