JP7048003B2 - Vertically movable outer scaffolding for high-rise buildings with no vacant land next door - Google Patents

Description

The present invention relates to an outer scaffolding used when performing construction on the outside of a building to be built in a narrow area in close proximity to a neighboring house.

At the time of construction of a building, etc., an outer scaffolding is temporarily installed to carry out construction work on the outside of the building.
Such an outer scaffold is generally constructed by combining a single pipe strut erected at a predetermined interval and a beam member vertically and horizontally, and temporarily installing a tread on the beam portion. (For example, Patent Document 1)

Japanese Patent Application Laid-Open No. 2005-188023

However, when constructing a building close to the neighboring house in a narrow area where the gap between the building and the neighboring house is only about 20 to 30 cm, sufficient space for the outer scaffolding cannot be secured, and Patent Document 1 It was not possible to temporarily construct a conventional outer scaffold as in the invention.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an outer scaffold for a narrow land used when the work of a building to be built close to a neighboring house is performed from the outdoor side. Is the subject.

In a temporary scaffold installed on the outside of a building and used for construction work , both sides of a thin steel plate formed into an inverted trapezoidal shape are bent in opposite directions with the same width, and the central web and the flanges on both sides form a zig-za shape. Along with molding, a scaffolding treadrest stand made of thin steel plate having a rectangular shape with one side having the same width as the flange width is joined to the upper end of the central web and the upper end of one of the flanges by welding. The end of the scaffolding strut, which is formed in a zig-za shape with the same width as the flange on both sides of a thin steel plate having a rectangular shape at the upper end of the web and the other flange of the scaffolding platform leg. A rectangular shape with a thickness of 1.6 mm to be fixed to the pair of scaffolding stanchions with scaffolding pedestals and the pair of scaffolding pedestal stanchions joined by welding . Both sides of the thin steel plate are bent in the opposite direction with the same width, and the scaffolding treads are formed into a Z-shape with the web in the center and the flanges on both sides. In order to fix the scaffolding treads and the scaffolding pedestal stanchions, the upper end fixing cross beam, the middle part fixing cross beam, the lower end fixing cross beam, and the scaffolding treads It is characterized in that two diagonally fixed columns formed in a z-shape made of thin steel plate are arranged in a V shape and attached to a scaffolding tread plate and a scaffolding tread plate stand-equipped support column.

In a temporary scaffold installed on the outside of a building and used for construction work , both sides of a thin steel plate formed into an inverted trapezoidal shape are bent in opposite directions with the same width, and the central web and the flanges on both sides form a zig-za shape. Along with molding, a scaffolding treadrest stand made of thin steel plate having a rectangular shape with one side having the same width as the flange width is joined to the upper end of the central web and the upper end of one of the flanges by welding. The end of the scaffolding strut, which is formed in a zig-za shape with the same width as the flange on both sides of a thin steel plate having a rectangular shape at the upper end of the web and the other flange of the scaffolding platform leg. A rectangular shape with a thickness of 1.6 mm to be fixed to the pair of scaffolding stanchions with scaffolding pedestals and the pair of scaffolding pedestal stanchions joined by welding . Both sides of the thin steel plate are bent in the opposite direction with the same width, and the scaffolding treads are formed into a Z-shape with the web in the center and the flanges on both sides. In order to fix the scaffolding treads and the scaffolding pedestal stanchions, the upper end fixing cross beam, the middle part fixing cross beam, the lower end fixing cross beam, and the scaffolding treads When the space between the neighboring house and the building to be built is narrow due to the fact that two diagonal fixed columns formed in a z-shape made of thin steel plate are arranged in a V shape and attached to the scaffolding treads and the scaffolding treads with pedestals. However, it has become possible to safely install the outer scaffolding, and because it is lightweight and easy to assemble, it has become possible to shorten the time required for carrying it to the site and assembling the scaffolding.

Hereinafter, embodiments of the present invention will be described.
[Embodiments of the Invention]

1 to 14 show embodiments of the present invention.

FIG. 1 shows a vertically movable outer scaffold 1 of the present invention with a front view (FIG. 1a) and a right side view (FIG. 1b).

FIG. 1a shows a vertically movable outer scaffold 1 of the present invention in a front view, and FIG. 1b shows a vertically movable outer scaffold 1 in a right side view. In order to support the vertically movable outer scaffold 1, the vertically movable outer scaffold 1 is composed of a pair of columns 4 with a first scaffolding platform and a pair of columns 5 with a second scaffolding platform on both sides. Bend both sides of a thin rectangular steel plate (thickness 1.6 mm) in the opposite direction at the upper ends of the first scaffolding stanchion stanchion 4 and the second scaffolding pedestal stanchion 5 with the same width. Both ends of the cross beam 2 for fixing the upper end portion, which is formed in a substantially Z shape, are attached by bolts 11, 20 and nuts 27, 213 (shown in FIG. At the lower end of the support column 5 with a scaffolding platform for scaffolding 2, a rectangular thin steel plate (thickness 1.6 mm) is formed into an L shape, and both ends of the lower end fixing cross beam 9 are bolts 17, 25 and nuts 32. Attached by 211 (shown in FIG. 10). Further, a rectangular thin steel plate is used so that the worker can ride from the outdoor side at a height of 1 m from the lower end of the first scaffolding platform with tread stand 4 and the second scaffolding platform with stand 5. Both sides (thickness 1.6 mm) are bent in the opposite direction with the same width, and the flanges on both sides of the scaffolding tread 6 formed into a roughly Z shape with the web in the center and the flanges on both sides are bolts 13, 14, 22, 23 and nuts. Attached by 29, 30, 212 (shown in FIG. 10) and 216 (shown in FIG. 10). Further, in order to reinforce the scaffolding tread plate 6, both sides of a rectangular thin steel plate (thickness 1.6 mm) are bent in the opposite direction with the same width, and the center web and the flanges on both sides are formed into a substantially Z-shape. One end of the diagonal fixing support 7 and the second diagonal fixing support 8 of 1 is fixed to the flange of the scaffolding tread 6 with bolts 18, 19 and nuts 229 (shown in FIG. 13) and nuts (not shown), respectively. Scaffolding treads 6 by attaching the other ends of the bolts 15, 24, nuts 31, and nuts (not shown) to the first scaffolding treadle stand 4 and the second scaffolding treadle stand 5. It has become possible to reinforce the scaffolding tread plate 6 by suppressing the deflection of the scaffolding. Further, both sides of a thin steel plate (thickness 1.6 mm) having a rectangular shape 1.20 m below the upper end of the first scaffolding support column 4 and the second scaffolding platform support column 5 have the same width. Bend in the opposite direction Both ends of the intermediate part fixing cross beam 3 formed into a substantially Z shape with the central web and the flanges on both sides are bolts 12, 21 and nuts 28, and nuts 189 (shown in FIG. 10) for the first scaffolding step. A state in which the temporary stand size support 4 and the second scaffolding footrest support support 5 are attached to the flanges is shown.

FIG. 2 is a perspective view of the vertically movable outer scaffold 1 described with reference to FIG. As shown in FIGS. 10 and 11, the cross beam 2 for fixing the upper end portion has a rectangular shape having a thickness of 1.6 mm, a length of 3.05 m, and a width of 114 mm, and has a width of 7 mm at both ends of the long side portion of the thin steel plate. In order to raise it, it is bent 180 degrees in opposite directions, and both ends of the rectangular thin steel plate with a width of 7 mm are bent at a width of 100 mm, and both sides are further bent at a width of 30 mm at right angles in opposite directions to fix the upper end. Reference numeral 2 is formed into a substantially Z-shape by a web 190 having a width of 40 mm in the center and flanges 191 and 193 having a width of 30 mm on both sides, and at positions 15 mm away from both ends of the flange 193 of the cross beam 2 for fixing the upper end portion thus formed. Holes 192 and 194 having a diameter of 10 mm are drilled at positions where the center lines of the flanges 193 intersect, and the holes 192 and 194 are separated from the upper ends of the flanges 68 and 133 of the scaffolding columns 55 and 120 shown in FIGS. Match the hole positions with the holes 63 and 128 with a diameter of 10 mm made at the position where the center lines of the flanges 68 and 133 intersect at the same position, and use the bolts 11, 20 and nuts 27 and 213 (shown in FIG. 10) to fix the upper end of the cross beam. 2 is shown in a state in which 2 is attached to the support column 4 with a tread plate stand for a first scaffold and the column 5 with a tread plate stand for a second scaffold.

Further, as shown in FIGS. 10 and 11, the intermediate beam fixing cross beam 3 in FIG. 2 has a rectangular shape having a thickness of 1.6 mm, a length of 3.05 m, and a width of 304 mm at both ends of the long side of the thin steel plate. The upper end is bent 180 degrees in opposite directions to increase the strength of 7 mm, and both ends of the rectangular thin steel plate after bending 7 mm in width are further bent at right angles to each other by 70 mm in width. The portion fixing cross beam 2 is formed in a substantially Z shape by a web 185 having a width of 150 mm in the center and flanges 184 and 187 having a width of 70 mm on both sides, and 15 mm from both ends of the flange 187 of the intermediate portion fixing cross beam 3 thus formed. Holes 186 and 188 having a diameter of 10 mm are drilled at positions where the center lines of the flanges 187 intersect at a distance, and the upper ends of the flanges 68 and 133 of the scaffolding columns 55 and 120 shown in FIGS. 6 and 7 with respect to the holes 186 and 188. A hole 183 with a diameter of 10 mm drilled at a position where the center lines of the flanges 68 and 133 intersect at a position 1.235 m away from each other. (Shown in FIG. 10) shows a state in which the intermediate portion fixing cross beam 3 is attached to the first scaffolding step board pedestal stanchion 4 and the second scaffolding pedestal pedestal stanchion 5.

Further, as shown in FIGS. 10 and 11, the scaffolding tread 6 of FIG. 2 has a rectangular shape having a thickness of 1.6 mm, a length of 3.05 m, and a width of 304 mm at both ends of a thin steel plate having a width of 7 mm. In order to increase the strength, it is bent 180 degrees in opposite directions, and both ends of the rectangular thin steel plate with a width of 290 mm are bent at right angles to each other by a width of 70 mm. The scaffolding tread 6 is formed in a substantially Z shape with a web 198 having a width of 150 mm in the center and flanges 196 and 199 having a width of 70 mm on both sides. Holes 195, holes 182 (indicated by dotted lines), holes 197, and holes 200 having a diameter of 10 mm are drilled at positions where the center lines of the flange 196 and the flange 199 intersect at positions 15 mm apart from both ends, and the holes 195 and 182 (dotted lines) are drilled. ), With respect to the hole 197 and the hole 200, the center lines of the scaffolding columns 55 and 120 shown in FIGS. The holes 69 and 134 having a diameter of 10 mm are matched with the hole positions of the holes 197 and 200 made at both ends of the flange 199 of the scaffolding tread plate 6, and similarly, the flanges 94 of the scaffolding tread plate pedestal legs 57 and 122. Holes 90, 155 made at the position where the center lines of the flanges 94 and 158 intersect at 15 mm from the upper end of 158, and the center line of the flange 196 at a position 15 mm from both ends of the flange 196 of the scaffolding tread 6 of FIGS. Match the hole positions of the holes 195 and 182 (indicated by dotted lines) made at the intersecting positions, and place both ends of the web 198 of the scaffolding tread 6 at both ends of the scaffolding tread stand leg 57 and 122 for the scaffolding tread stand. Place the scaffolding tread 6 on the top of 56, 121 and stack it with four bolts 13, 14, 22, 23 and four nuts 29, 30, 212, 216. And the state where it is attached to the support column 5 with the second scaffolding tread stand is shown.

Further, as shown in FIG. 8a, the cross beam 9 for fixing the lower end portion of FIG. 2 shows a state in which a thin steel plate having a thickness of 1.6 mm is formed into a convex shape with all the corner portions intersecting with each other according to the external dimensions. The length of the side 250 of the rectangular bent portion 209 shaped in this way is 3.04 m, the lengths of the right upper side 251 and the left upper side 260 facing each other in parallel are both 47 mm, and the rectangular right bent portion is further formed. The lengths of the protruding right upper side 252 and the protruding right lower side 254 facing parallel to each other of 215 are both 40 mm, and the lengths of the protruding right sleeve side 253 and the protruding right turn curve 255 facing parallel to each other are both 37 mm. A hole 210 with a diameter of 10 mm is drilled at a position 20 mm away from the protruding right sleeve side 253 of the right-turned portion 215, and a hole 210 having a diameter of 10 mm is drilled at a position 15 mm away from the upper right side 252, and the similarly rectangular left-turned portion 206 faces parallel to each other. The length of the protruding upper left side 259 and the protruding left lower side 257 are both 40 mm, and the lengths of the protruding left sleeve side 258 and the protruding left turn curve 262 facing parallel to each other are both 37 mm. A hole 207 with a diameter of 10 mm is drilled at a position 20 mm away from the protruding left sleeve side 258 of the end and 15 mm away from the protruding upper left side 259, and further parallel to the rectangular bent portion 208 adjacent to the left bent portion 206. The lengths of the folding curves 261 and the sides 256 facing each other are both 3.04 m. In this way, the lower end fixing cross beam 9 is formed into a convex shape by the rectangular bent portion 209, the bent portion 208, the right bent portion 215, and the left bent portion 206, and the side 250 formed in this way and the side 250. After bending the sides 7 mm wide from the ends of the sides 256, the protruding right lower side 254, and the protruding left lower side 257 located on the facing straight lines 180 degrees in opposite directions to increase the strength, and bending the ends 180 degrees. The bent portion 208, the right bent portion 215, and the left bent portion 206 facing the convex bent portion 209 are bent at a right angle at the position of the folding curve 261 and then the right bending portion 215 protrudes with respect to the folding portion 208. Bend at a right angle at the position of the right turn curve 255, further join the right upper side 251 and the protruding upper right side 252 by welding, and similarly bend the left turn portion 206 at the position of the protruding left turn curve 262 with respect to the bend portion 208. Further, a state in which the upper left side 260 and the protruding upper left side 259 are joined by welding is shown in the perspective view of FIG. 8b.

Further, in the first scaffolding platform with scaffolding column 4 of FIG. 2, as shown in FIG. 7, the scaffolding column 120 forming the upper portion, the scaffolding platform leg portion 122 forming the lower portion, and the scaffolding column 120 And a rectangular scaffolding tread stand 121 attached between the scaffolding tread stand legs 122. As shown in FIG. 7a, the scaffolding column 120 shows a state in which a thin steel plate having a thickness of 1.6 mm is formed into a rectangular shape according to the external dimensions. The scaffolding column 120 has a rectangular shape with a thickness of 1.6 mm, a length of 3.05 m, a width of 114 mm, and both sides of a thin steel plate having a length of 3.05 m and a width of 7 mm. In order to increase the strength at the position of 141, the flanges 133 and 140 on both sides of the rectangular thin steel plate after being bent 180 degrees in opposite directions and the width of both sides are bent by 7 mm are further lengthened at the positions of the folding curves 131 and 142. By bending at a right angle of 3.05 m and a width of 30 mm in the opposite direction, the scaffold support 120 was formed into a substantially Z-shape by a web 143 having a width of 40 mm in the center and flanges 133 and 140 having a width of 30 mm on both sides. A hole 128 having a diameter of 10 mm is drilled at a position where the fold curve 131 and the center line of the fold curve 132 intersect at a position 15 mm away from the end 126 of the flange 133 of the scaffold support column 120, and a fold curve is further formed at a position 35 mm away from the end 136. The scaffolding column 120 is formed as shown in FIG. 7b by making a hole 134 having a diameter of 10 mm at a position where the center line of the folding curve 132 and 131 intersect.

Furthermore, the footboard stand 121 for scaffolding is a rectangular thin steel plate with a thickness of 1.6 mm, and the lengths of the A side 146 and the C side 148 facing each other in parallel are both 30 mm, and the B side 147 and the D side 149 facing each other in parallel. Both lengths are 150 mm.

Further, as shown in FIG. 7a, the scaffolding tread stand leg portion 122 shows a state in which a thin steel plate having a thickness of 1.6 mm is formed into a substantially inverted trapezoidal shape according to the external dimensions. The reinforcing bent portion 156 has a rectangular shape, the lengths of the sides 160 and the folded curve 159 are both 1 m, and the lengths of the end portions 154 and the end portions 162 facing in parallel are both 7 mm. Further, the flange 158 adjacent to the reinforcing bent portion 156 has a rectangular shape, the length of the folded curve 157 is 1 m, which is the same as the length of the folded curve 159, and the lengths of the end portions 153 and the end portions 163 facing in parallel are both 30 mm. Further, a hole 155 having a diameter of 10 mm is made at a position where the folding curve 159 and the center line of the folding curve 157 intersect at a position 35 mm away from the end portion 153, and a folding curve 159 and a folding curve are further formed at a position 100 mm away from the end portion 163. A hole 161 having a diameter of 10 mm is drilled at a position where the center lines of 157 intersect. Further, the web 171 adjacent to the flange 158 has a trapezoidal shape, the length of the end portion 152 is 190 mm, and the angle at which the folding curve 157 and the end portion 152 intersect is 90 °. Further, the length of the end portion 164 facing parallel to the end portion 152 is 40 mm, and the angle at which the folding curve 157 and the end portion 164 intersect is 90 °. Further, the length of the folding curve 172 is 1.011 m, the angle at which the end portion 152 and the folding curve 172 intersect is 81 °, and the angle at which the end portion 164 and the folding curve 172 intersect is 99 °. Further, a hole 167 having a diameter of 10 mm is drilled at a position 20 mm away from the folding curve 157 at a position 15 mm away from the end portion 164. Further, the flange 170 adjacent to the web 171 has a rectangular shape, and the lengths of the end 151 and the end 165 facing in parallel are both 30 mm, and the angle at which the ends 151 and 165 and the folding curve 172 intersect is 90 °. The length of the folding curve 169 is 1.011m, which is the same as the length of the folding curve 172. Further, the reinforcing bent portion 173 adjacent to the flange 170 has a rectangular shape, and the lengths of the end portion 150 and the end portion 166 facing in parallel are both 7 mm, and the angle at which the folded curve 169 and the end portions 150 and 166 intersect is 90 °. .. Further, the length of the side 168 is 1.011 m, which is the same as the length of the folding curve 169. In order to increase the strength of the reinforcing bent portion 156 and the reinforcing bent portion 173 of the foot portion 122 for the stair tread stand, which has an substantially inverted trapezoidal shape, at the positions of the folding curve 159 and the folding curve 169, each other. By bending the flange 158 and the flange 170 at the positions of the folding curve 157 and the folding curve 172 at right angles in opposite directions while bending 180 degrees in the opposite direction, the foot portion 122 for the stair tread stand for scaffolding is as shown in FIG. 7b. The trapezoidal web 171 in the center and the flanges 185 and 170 having a width of 30 mm on both sides form a substantially Z-shape.

Further, as shown in FIG. 7b, the end 153 of the scaffolding footrest stand leg 122 and the A side 146 of the scaffolding footboard stand 121 are joined by welding, and the end of the scaffolding footboard stand leg 122 is joined. The portion 152 and the D side 149 of the scaffolding platform 121 are joined by welding, and the end 151 of the scaffolding platform leg 122 and the end 138 of the scaffolding column 120 are joined by welding, and further for scaffolding. The C side 148 of the tread board 121 and the end 136 of the scaffolding column 120 are joined by welding, and the end 152 of the scaffolding tread table leg 122 and the end 137 of the scaffolding column 120 are joined by welding. As a result, as shown in FIG. 7c, the first support column 4 with a scaffolding board stand is formed.

Further, as shown in FIG. 6, the first scaffolding platform with scaffolding column 5 in FIG. 2 has a scaffolding column 55 forming an upper portion, a scaffolding platform leg portion 57 forming a lower portion, and a scaffolding column 55. And a rectangular scaffolding tread stand 56 that is attached so as to be sandwiched between the scaffolding tread stand legs 57. As shown in FIG. 6a, the scaffolding column 55 is a rectangular thin steel plate having a thickness of 1.6 mm, a length of 3.05 m, and a width of 114 mm. , Bend 180 degrees in opposite directions to increase the strength at the position of 76, and further width the flanges 68 and 75 on both sides of the rectangular thin steel plate after bending the width of 7 mm on both sides at the positions of the folding curves 66 and 77. By bending 30 mm at right angles in opposite directions, the scaffolding column 55 is formed into a substantially Z shape by a web 78 having a width of 40 mm in the center and flanges 68 and 75 having a width of 30 mm on both sides, and the flange of the scaffolding column 55 thus formed. A hole 63 having a diameter of 10 mm is drilled at a position where the fold curve 67 and the center line of the fold curve 66 intersect at a position 15 mm away from the end portion 61 of 68, and the fold curve 67 and the fold curve 66 are further located at a position 35 mm away from the end portion 71. A scaffolding column 55 is formed as shown in FIG. 6b by making a hole 69 having a diameter of 10 mm at a position where the center lines of the above cross.

Furthermore, the footboard stand 56 for scaffolding has a rectangular shape made of a thin steel plate with a thickness of 1.6 mm, and the lengths of the A side 81 and the C side 83 facing each other in parallel are both 30 mm, and the B side 82 and the D side facing each other in parallel. Both 84 have a length of 150 mm.

Further, as shown in FIG. 6a, the leg portion 57 for the scaffolding tread stand shows a state in which a thin steel plate having a thickness of 1.6 mm is formed into a substantially inverted trapezoidal shape according to the external dimensions. The reinforcing bent portion 91 has a rectangular shape, the lengths of the sides 93 and the folded curve 95 are both 1 m, and the lengths of the end portions 89 and the end portions 97 facing in parallel are both 7 mm. Further, the flange 94 adjacent to the reinforcing bent portion 91 has a rectangular shape, the length of the folded curve 92 is 1 m, which is the same as the length of the folded curve 95, and the lengths of the end portions 88 and the end portions 98 facing in parallel are both 30 mm. Further, a hole 90 having a diameter of 10 mm is drilled at a position where the fold curve 95 and the center line of the fold curve 92 intersect at a position 35 mm away from the end portion 88, and the fold curve 95 and the fold curve are further formed at a position 100 mm away from the end portion 98. A hole 96 having a diameter of 10 mm is drilled at the position where the 92 intersects. Further, the web 106 adjacent to the flange 94 has a trapezoidal shape, the length of the end portion 87 is 190 mm, and the angle at which the folding curve 92 and the end portion 87 intersect is 90 °. Further, the length of the end portion 99 facing parallel to the end portion 87 is 40 mm, and the angle at which the folding curve 92 and the end portion 99 intersect is 90 °. Further, the length of the folding curve 107 is 1.011 m, the angle at which the end portion 87 and the folding curve 107 intersect is 81 °, and the angle at which the end portion 99 and the folding curve 107 intersect is 99 °. Further, a hole 102 having a diameter of 10 mm is formed at a position 15 mm away from the end portion 99 and 20 mm away from the folding curve 92 in parallel. Further, the flange 104 adjacent to the web 106 has a rectangular shape, and the lengths of the ends 86 and 100 facing in parallel are both 30 mm, and the angle at which the ends 86 and 100 and the folding curve 107 intersect is 90 °. Further, the length of the folding curve 103 is 1.011m, which is the same as that of the folding curve 107. Further, the reinforcing bent portion 108 adjacent to the flange 104 has a rectangular shape, and the lengths of the end portions 85 and the end portions 101 facing each other in parallel are both 7 mm, and the folding curves 103 and the end portions 85, 101 both intersect at right angles. Further, the length of the side 105 is 1.011 m, which is the same as the length of the folding curve 103. The reinforcing bent portion 91 and the reinforcing bent portion 108 of the foot portion 57 for the stair tread stand, which has a substantially inverted trapezoidal shape, are formed at the positions of the folding curve 95 and the folding curve 103 to increase the strength of each other. By bending the flange 94 and the flange 104 180 degrees in the opposite direction and bending the flange 94 and the flange 104 at right angles in opposite directions at the positions of the folding curve 92 and the folding curve 107, the foot portion 57 for the stair tread stand for scaffolding is as shown in FIG. 6b. The trapezoidal web 106 in the center and the flanges 94 and 104 having a width of 30 mm at both ends form a substantially Z-shape.

Further, as shown in FIG. 6b, the end 88 of the scaffolding platform leg 57 and the A side 81 of the scaffolding platform 56 are joined by welding, and the end of the scaffolding platform leg 57 is joined. The portion 87 and the B side 82 of the scaffolding platform 56 are joined by welding, and the end 86 of the scaffolding platform leg 57 and the end 73 of the scaffolding column 55 are joined by welding, and further for scaffolding. The C side 83 of the scaffolding platform 56 and the end 71 of the scaffolding column 55 are joined by welding, and the end 87 of the scaffolding platform leg 57 and the end 72 of the scaffolding column 55 are joined by welding. As a result, as shown in FIG. 6c, a second support column 5 with a scaffolding board stand is formed.

Further, the second diagonal fixed column 8 in FIG. 2 shows a state in which a thin steel plate having a thickness of 1.6 mm is formed into a flat plate shape according to the outer shape as shown in FIG. The reinforcing bent portion 302 has an isosceles trapezoidal shape, and the lengths of the sides 300 and the sides 305 are both 10 mm, the length of the side 301 is 1.260 m, the length of the folded curve 303 is 1.274 m, and the sides 300 and the sides. The intersection angle of 301 is 135 °, the intersection angle of the side 300 and the folding curve 303 is 45 °, the intersection angle of the side 305 and the side 301 is 135 °, and the intersection angle of the side 305 and the folding curve 303 is 45 °. Further, the flange 224 adjacent to the reinforcing bent portion 302 has an isosceles trapezoidal shape, the lengths of the sides 317 and 306 are both 42 mm, the length of the folded curve 304 is 1.334 m, and the sides 300 and 317 are on a straight line. Similarly, the sides 305 and 306 are also formed in a straight line. The intersection angle of 303 is 135 °, and the intersection angle of the side 306 and the folding curve 304 is 45 °. Further, in the flange 224, a hole 226 having a diameter of 10 mm is formed at a position 35 mm to the right from the apex where the side 317 and the fold curve 304 intersect on the center line of the fold curve 303 and the fold curve 304, and the side 306 and the fold curve are similarly formed. A hole 221 having a diameter of 10 mm is drilled at a position 40 mm to the left from the intersecting vertices of 304. Further, the web 223 adjacent to the flange 224 has a rectangular shape, the length of the folding curve 310 is 1.280 m, the lengths of the sides 316 and the side 307 are both 40 mm, and the sides 307 and the folding curves 304 and 310 both intersect at right angles. Furthermore, the flange 222 adjacent to the web 223 has an isosceles trapezoidal shape, the lengths of the sides 315 and 308 are both 42 mm, the length of the folding curve 311 is 1.340 m, and the angle at which the folding curve 310 and the side 315 intersect is 135 °. The angle at which the side 315 and the folding curve 311 intersect is 45 °, the angle at which the side 308 and the folding curve 310 intersect is 135 °, and the angle at which the side 308 and the folding curve 311 intersect is 45 °. Further, the reinforcing bent portion 313 adjacent to the flange 222 has an inverted isosceles trapezoidal shape, the lengths of the sides 309 and 314 are both 10 mm, the length of the sides 312 is 1.326 m, and the sides 314 and the folding curve 311 intersect. The angle is 45 °, the intersection angle of the side 314 and the side 312 is 135 °, the intersection angle of the side 309 and the folding curve 311 is 45 °, and the intersection angle of the side 309 and the side 312 is 135 °.

Reinforcing bent portions 302 and 313 having a width of 7 mm on both sides of the second diagonally fixed support column 8 thus formed are both bent 180 degrees in opposite directions in order to increase the strength at the positions of the folding curves 303 and 311 and the flanges. By bending the 224 and the flange 222 at right angles to each other at the positions of the folding curve 304 and the folding curve 310, the second diagonal fixed column 8 is formed as shown in FIG. 12b. The second diagonal fixed column 8 thus formed is opened in the hole 96 formed in the flange 94 of the scaffolding tread stand leg 57 described with reference to FIG. 6a and in the flange 196 of the scaffolding tread 6 shown in FIG. As shown in FIG. 14, the second diagonal fixing column 8 is a scaffolding tread 6 and a second scaffolding tread holder by fixing the holes 228 (indicated by dotted lines) with bolts 19, 24 and nuts 31, 229. It is fixed to the support column 5 with a base, and it is possible to suppress the bending of the scaffolding tread 6 even when an operator gets on the scaffolding tread 6.

Similarly, the first diagonal fixed support 7 in FIG. 2 is configured in a shape opposite to the second diagonal fixed support 8, and bolts 15 are added to the scaffolding tread 6 and the first scaffolding tread stand 4 with bolts 15. It is fixed with 18 and a nut (not shown).

Further, in the second concrete floor fixing member 10 of FIG. 2, as shown in FIG. 9a, a rectangular thin steel plate having a thickness of 1.6 mm is formed into a flat plate shape according to the external dimensions, and one of the corners is formed. It shows a state in which the notch upper side 265 is cut by 37 mm and the notch right side 266 is cut by 40 mm. The reinforcing bent portion 280 has a rectangular shape, and the lengths of the side 274 and the folding curve 271 are both 0.6 m, and the lengths of the sides 276 and the side 279 are both 7 mm. Further, the flange 201 adjacent to the reinforcing bent portion 280 has a rectangular shape, the length of the folding curve 272 is 0.6 m, and the lengths of the side 270 and the side 263 are both 30 mm. Further, the web 214 adjacent to the flange 201 has a rectangular shape, the length of the folding curve 273 is 0.56 m, the lengths of the side 269 and the side 264 are both 30 mm, and the folding curve 272 is 20 mm away from the side 264. A hole 205 having a diameter of 10 mm is drilled at a position where the center lines of the folding curve 273 intersect. Further, the flange 203 adjacent to the web 214 has a rectangular shape, the length of the folding curve 267 is 0.56 m, the lengths of the side 266 and the side 268 are both 30 mm, and the sides 266 and the sides 268 at both ends are separated from each other by 50 mm. Holes 204 and 202 having a diameter of 10 mm are drilled at the positions where the fold curve 273 and the center line of the fold curve 267 intersect. Further, the reinforcing bent portion 281 adjacent to the flange 203 has a rectangular shape, the length of the side 275 is 0.56 m, and the lengths of the sides 277 and 278 facing each other are both 7 mm. The length of the notched upper side 265 is 40 mm, and the side 276, the side 270, the side 269, the side 268, and the side 277 are formed in a straight line, and the side 279, the side 263, and the side 264 are also formed in a straight line.

The reinforcing bent portion 280 and the reinforcing bent portion 281 of the second concrete floor fixing member 10 thus formed are bent 180 degrees in opposite directions in order to increase the strength at the positions of the folding curve 271 and the folding curve 267. By bending the flange 201 and the flange 203 at the positions of the folding curve 272 and the folding curve 273 at right angles in opposite directions to each other, the second concrete floor fixing member 10 has the flange 203 with respect to the web 214 as shown in FIG. 9b. It is formed in a roughly Z-shape with a shape that is notched 40 mm short in the L shape.

As shown in FIGS. 6, 8, 9, 10, and 11, the second concrete floor fixing member 10 thus formed includes the flange 203 of the second concrete floor fixing member 10 and the footrest for scaffolding. A hole made in the web 214 of the second concrete floor fixing member 10 while abutting the notched right side 266 of the flange 203 against the end portion 98 of the flange 94 so that the flange 94 of the base leg portion 57 is at a right angle. The web 214 of the second concrete floor fixing member 10 and the foot for the scaffolding platform so that the holes 102 formed in the web 106 of the platform for scaffolding platform 57 and 205 are formed in the same hole shape. The web 106 of 57 is brought into contact with the hole 205 of the web 214 so that the hole 207 of the bent portion 206 of the cross beam 9 for fixing the lower end portion has the same hole shape, and the bolt 25 is brought into contact with the hole 207, the hole 205 and the hole 102. As shown in FIG. 11, the cross beam 9 for fixing the lower end portion, the support column 5 for the step board stand for the second scaffold, and the second concrete floor fixing member 10 are integrated and used for the scaffold. The flange 94 of the tread stand leg 57 and the second concrete floor fixing member 10 are configured to intersect at a right angle. Similarly, the first scaffolding support column 4 with a tread stand, the lower end fixing cross beam 9, and the first concrete floor fixing member 33 are also fixed with bolts 17 and nuts 211 as shown in FIGS. Will be done.

In this way, the first concrete floor fixing member 33 and the second concrete floor fixing member 10 are attached to the columns 4 with the first scaffolding platform and the second columns 5 with the platform for scaffolding with bolts 17 and 25. Workers are fixed by the nuts 32 and 211, and the first concrete floor fixing member 33 and the second concrete floor fixing member 10 are fixed to the beam by the driving anchor 16 and the driving anchor 26 as shown in FIG. The 41 can safely perform the work on the scaffolding tread 6 of the vertically movable outer scaffold 1.

In FIG. 3, in order to attach the scaffolding sheet 40 to the outside of the building of the vertically movable outer scaffolding 1 described with reference to FIG. And by attaching the lower end of the scaffolding sheet 40 to the hole 38 made in the cross beam 9 for fixing the lower end with a sheet string or a rubber band, the worker 41 shown in FIG. 4 dropped the tool or the like during the work. Even in this case, the tools and the like fall along the scaffolding sheet 40 into the inside of the building under construction without falling to the ground, so that work safety is maintained and the scaffolding sheet 40 is further integrated with the vertically movable outer scaffolding 1. By attaching the scaffolding sheet 40, it is not necessary to remove the scaffolding sheet 40 even when the vertically movable outer scaffolding 1 is relocated, and the work can be promoted more efficiently.

FIG. 4 shows a state in which the worker 41 is placed on the scaffolding tread 6 of the vertically movable outer scaffolding 1 described with reference to FIG.

FIG. 5 shows a state in which the vertically movable outer scaffolding 1 described with reference to FIGS. 1 to 4 is fixed to a beam 46 of a reinforced concrete building in the middle of construction composed of columns 44, 47 and beams 45, 46. The first concrete floor fixing member 33 and the second concrete floor fixing attached to the lower ends of the vertically movable outer scaffolding 1 for the first scaffolding platform with a platform 4 and the second platform for scaffolding with a platform 5 at the lower ends. The driving anchors 16 and 26 are inserted into the holes opened in the member 10, and the first concrete floor fixing member 33 and the second concrete floor fixing member 10 are fixed to the beam 46 by the driving anchors 16 and 26. The mobile outer scaffold 1 is fixed to the beam 46. By configuring the vertically movable outer scaffolding 1 so that it is lightweight and easy to assemble in this way, even if the gap between the building and the neighboring building is narrow, it can be moved up and down to the outside of the building under construction. The outer scaffolding 1 can be easily installed, and it is possible to work safely from the outside of the building. At the same time, it can be disassembled and relocated, and even when assembled, it can be moved upstairs. The vertical movement type is possible by fixing the first concrete floor fixing member 10 and the second concrete floor fixing member 33 of the vertically movable outer scaffold 1 to the beam 46 with the driving anchors 16 and 26. The worker 41 can get on the scaffolding tread 6 of the outer scaffold 1 and work from the outside of the building, and when the worker 41 works on the upper floor, the safety of the worker 41 is protected. Therefore, the cross beam 2 for fixing the upper end portion serves as a handrail, so that the worker 41 can play a role of preventing the worker 41 from falling.

Although the vertically movable outer scaffolding for a high-rise building with no adjacent land according to the present invention has been described in detail based on the above-described embodiment, the present invention is not limited to the above-described embodiment. It goes without saying that even if various modifications are made without departing from the spirit of the invention, they belong to the technical scope of the present invention.

The vertical movable outer scaffold according to the embodiment of the present invention is shown in front view and right side view. A vertical movable outer scaffold according to the same embodiment is shown in a perspective view. A state in which the scaffolding sheet is attached to the vertically movable outer scaffolding shown in FIG. 2 according to the same embodiment is shown. A state in which an operator is placed on a scaffolding tread of a vertically movable outer scaffold shown in FIG. 3 according to the same embodiment is shown. The state in which the vertically movable outer scaffolding according to the same embodiment is attached to the floor and the beam of the building is shown. The thin steel plate forming the second scaffolding tread stand support column shown in FIGS. 1, 2, 3, 4, and 5 according to the same embodiment is formed into a flat plate shape and bent. The state of being joined by welding is shown in a perspective view. The thin steel plate forming the first scaffolding tread stand support column shown in FIGS. 1, 2, 3, 4, and 5 according to the same embodiment is formed into a flat plate shape and bent. The state of being joined by welding is shown in a perspective view. A state in which a thin steel plate forming a cross beam for fixing the lower end portion shown in FIGS. 1, 2, 3, 4, and 5 according to the same embodiment is shaped into a flat plate, and a state in which the thin steel plate is bent and joined by welding. Is shown in a perspective view. A perspective view of a state in which the thin steel plate forming the second concrete floor fixing member shown in FIGS. Indicated by. A perspective view shows a state in which the vertically movable outer scaffolding according to the same embodiment is disassembled. A state in which the vertically movable outer scaffold shown in FIG. 10 according to the same embodiment is assembled is shown. A perspective view shows a state in which the thin steel plate forming the second diagonal fixed column 8 shown in FIGS. 1, 2, 3, and 4 according to the same embodiment is shaped into a flat plate and a bent state. .. A perspective view of the state before fixing the second diagonal fixed support column shown in FIGS. Shown in the figure. A state in which the second diagonally fixed support column shown in FIG. 13 according to the same embodiment is fixed to the second support column with a scaffolding board stand and the scaffolding step board is shown.

1 Vertically movable outer scaffold 2 Flange for fixing the upper end 3 Flange for fixing the middle part 4 Strut with a tread board stand for the first scaffold 5 Strut with a tread board stand for the second scaffold 6 Tread board for the scaffold 7 First diagonal fixing Strut 8 Second diagonal fixing strut 9 Flange for fixing the lower end 10 Second concrete floor fixing member 11 Bolt 12 Bolt 13 Bolt 14 Bolt 15 Bolt 16 Driving anchor 17 Bolt 18 Bolt 19 Bolt 20 Bolt 21 Bolt 22 Bolt 23 Bolt 24 Bolts 25 Bolts 26 Drive-in anchors 27 Nuts 28 Nuts 29 Nuts 30 Nuts 31 Nuts 32 Nuts 33 First concrete floor fixing members 38 Holes 39 Holes 40 Scaffolding sheets 41 Workers 42 Floor slabs 43 Floor slabs 44 Pillars 45 Beams 46 Beams 47 Pillars 55 Scaffolding struts 56 Scaffolding footrests 57 Scaffolding footboards Legs 58 Ends 59 Ends 60 Ends 61 Ends 62 Ends 63 Holes 64 Sides 65 Reinforcing bends 66 Folded curves 67 Folds Curve 68 Flange 69 Hole 70 End 71 End 72 End 73 End 74 End 75 Flange 76 Fold Curve 77 Fold Curve 78 Web 79 Reinforcing Fold 80 Side 81 A Side 82 B Side 83 C Side 84 D Side 85 End 86 End 87 End 88 End 89 End 90 Hole 91 Reinforcing bend 92 Fold curve 93 Side 94 Flange 95 Fold curve 96 Hole 97 End 98 End 99 End 100 End 101 End 102 Hole 103 Folded Curve 104 Flange 105 Side 106 Web 107 Folded Curve 108 Reinforcing Folded Part 120 Scaffolding Strut 121 Scaffolding Step Board Stand 122 Scaffolding Step Board Stand Leg 123 End 124 End 125 End 126 End 127 End 128 Hole 129 Reinforcing Fold 130 Side 131 Fold Curve 132 Fold Curve 133 Flange 134 Hole 135 End 136 End 137 End 138 End 139 End 140 Flange 141 Fold Curve 142 Fold Curve 143 Web 144 Sides 145 Reinforcing bent part 146 A side 147 B side 148 C side 149 D side 150 End part 151 End part 152 End part 153 End part 154 End part 155 Hole 156 Reinforcing bent part 157 Folded curve 158 Flange 159 Folded curve 160 Side 161 Hole 162 End 163 End 164 End 165 End 166 End 167 Hole 168 Side 169 Fold Curve 170 Flange 171 Web 172 Fold Curve 173 Reinforcing bend 182 Hole 183 Hole 184 Flange 185 Web 186 Hole 187 Flange 188 Hole 189 Nut 190 Web 191 Flange 192 Hole 193 Flange 194 Hole 195 Hole 196 Flange 197 Hole 198 Web 199 Flange 200 Hole 201 Flange 202 Hole 203 Flange 204 Hole 205 Hole 206 Left Bend 207 Hole 208 Bend 209 Bend 210 Hole 211 Nut 212 Nut 213 Nut 214 Web 215 Right Bend 216 Nut 221 Hole 222 Flange 223 Web 224 Flange 226 Hole 228 Hole 229 Nut 250 Side 251 Right upper side 252 Protruding upper right side 253 Protruding right sleeve side 254 Protruding right lower side 255 Protruding right turn curve 256 Side 255 Protruding left lower side 258 Protruding left sleeve side 259 Protruding upper left side 260 Left upper side 261 Fold curve 262 Protruding left turn curve 263 Side 264 side 265 Notch upper side 266 Notch right side 267 Fold curve 268 Side 267 Side 270 Side 271 Fold curve 272 Fold curve 273 Fold curve 274 Side 275 Side 276 Side 277 Side 278 Side 279 Side 280 Reinforcing bent part 281 Reinforcing bent part 300 Side 301 Side 302 Reinforcing bent part 303 Folded curve 304 Folded curve 305 Side 306 Side 307 Side 308 Side 309 Side 310 Folded curve 311 Folded curve 312 Side 313 Reinforcing bent part 314 Side 315 Side 316 Side 317 side

Claims (1)

In temporary scaffolding installed on the outside of the building and used for building work
Both sides of a thin steel plate formed into a substantially inverted trapezoidal shape are bent in opposite directions with the same width, and the center web and the flanges on both sides are formed into a roughly Z-shape, and at the upper end of the center web and the upper end of one of the flanges. A thin steel plate scaffolding platform with the same side as the flange width is joined by welding to form a scaffolding platform leg, and a web at the upper end of the scaffolding platform leg. A pair of scaffolding stanchions with pedestal pedestals, in which both sides of a thin steel plate having a rectangular shape at the upper end of the other flange are welded together at the ends of the scaffolding stanchions that are formed into a Z-shape with the same width as the flange .
In order to fix to the pair of scaffolding tread stand columns joined by welding to the scaffolding tread stand, both sides of a rectangular thin steel plate with a thickness of 1.6 mm are bent in the opposite direction with the same width and the center flange . A scaffolding tread that is roughly Z-shaped with a flange and flanges on both sides,
A cross beam for fixing the upper end, a cross beam for fixing the middle part, and a cross beam for fixing the lower end, which are formed in a Z-shape with a thin steel plate in order to be attached to the upper end, the middle and the lower end of the pair of scaffolding support columns. When,
In order to fix the scaffolding tread and the scaffolding tread stand support, two diagonal fixing columns formed in a z-shape with thin steel plate are arranged in a V shape, and the scaffolding tread and the scaffolding tread stand are attached. Vertically movable outer scaffolding for high-rise buildings with no vacant land next to it, which is characterized by being attached to columns.

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