JP2019218830A - Up-and-down movable external scaffolding for high-rise building with no vacant neighboring land - Google Patents

Abstract

To provide an external scaffolding for a narrow land used when working on a building to be built close to a neighboring house from outside.SOLUTION: There is provided an up-and-down movable external scaffolding for a high-rise building comprising: a pair of bilaterally symmetrically formed supports with scaffolding step board placing bases made of thin steel plates and arranged at a space; a generally Z-shaped scaffolding step board for fixing to the scaffolding step board placing bases of the pair of symmetrically formed supports with scaffolding step board placing bases; and an upper end fixing cross beam, a middle portion fixing cross beam, and a lower end fixing cross beam formed in a generally Z-shape with thin steel plates in order to be attached to an upper end, a generally middle portion and a lower end of the pair of supports with scaffolding step board placing bases, in which two diagonally fixed supports formed in a generally Z-shape with thin steel plates are arranged in a C-shape and attached to the scaffolding step boards and the supports with scaffolding step board placing bases in order to fix the scaffolding step boards and the supports with scaffolding step board placing bases.SELECTED DRAWING: Figure 4

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external scaffold used when performing construction outside a building to be built close to a neighboring house on a small land.

When constructing a building or the like, an external scaffold is temporarily provided to perform construction outside the building.
Such an external scaffold is generally constructed by vertically and horizontally combining a single pipe column and a beam member erected at a predetermined interval and temporarily installing a tread on a beam portion. (For example, Patent Document 1)

JP 2005-188023 Public Relations

  However, when constructing a building close to a neighbor on a narrow land where a gap between the building of the neighbor is only about 20 to 30 cm, a sufficient space for an external scaffold cannot be secured, It was not possible to provision a conventional external 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 external scaffold for narrow land used when performing work of a building to be built in close proximity to a neighbor from outside. Is the subject.

  In order to solve such a problem, the invention according to claim 1 is provided on a temporary scaffold installed outside a building and used for performing a construction work, a pair of left-right symmetrically formed thin steel plates arranged at intervals. A scaffolding tread plate having a generally Z-shape to be fixed to the scaffolding treading plate support of the pair of symmetrically formed scaffolding treading plate support columns formed on the pair of left and right symmetrically formed scaffolding stepping plate support columns. In order to attach it to the upper end, approximately the middle and the lower end of the column with a treadboard support for the scaffold, a cross beam for fixing the upper end, a cross beam for the middle portion and a cross beam for the lower end fixed in a generally Z-shape with thin steel sheet, In order to fix the scaffolding tread and the scaffolding tread support, two diagonally fixed struts formed of a thin steel plate and having a substantially Z-shape are arranged in a C-shape to provide a scaffolding tread and a scaffolding tread support. It is characterized by being attached to a support.

  According to a second aspect of the present invention, in addition to the structure of the first aspect, the supporting column with a tread plate for a scaffold is configured such that both sides of a thin steel plate formed into a generally inverted trapezoidal shape are bent in opposite directions at the same width in opposite directions to each other. The web and the flanges on both sides are formed into a substantially Z-shape, and the upper end of the central web and the upper end of the one flange are joined by welding to a scaffolding ladder for a scaffold made of a thin steel plate having a rectangular shape with one side equal to the flange width. To form a foot portion with a footrest for a scaffold, furthermore, both sides of a web at the upper end of the foot portion with a footrest for a scaffold and the thin steel plate having a rectangular shape at the upper end of the other flange are approximately the same width as the flange. The end of the Z-shaped scaffolding support is joined by welding.

  According to a third aspect of the present invention, in addition to the structure of the first aspect, a concrete floor fixing member in which both ends of a thin steel plate are bent at the lower end of a support with a tread plate for a scaffold and formed into a substantially Z-shape is provided. It is characterized by being fixed with.

  According to a fourth aspect of the present invention, in addition to the structure of the first aspect, a scaffold sheet is attached to the upper end fixing horizontal beam and the lower end fixing horizontal beam.

  According to the invention as set forth in claim 1, a pair of symmetrically formed scaffolds formed of thin steel plates are provided on a temporary scaffold installed outside a building and used for performing construction work. A strut with a tread rest, a scaffold with a generally Z-shape for fixing to the scaffold with a pair of symmetrically-supported struts for a scaffold, and a pair of scaffolds for the scaffold In order to attach to the upper end, the middle, and the lower end of the support column, the upper end fixing cross beam, the intermediate fixing cross beam, the lower end fixing cross beam, and the scaffolding tread plate, which are formed in a substantially Z-shape with thin steel plates, In order to fix the column with scaffolding platform, two diagonally fixed columns, which are made of thin steel plate and are approximately Z-shaped, are arranged in a C-shape and attached to the platform and scaffolding platform. Space between the neighbor and the building to be built But safely together it will be able to install the outside scaffolding, because the assembly is simple and lightweight, it has become possible to shorten the loading and scaffolding assembly work time to the site.

  According to the invention as set forth in claim 2, the supporting column with a tread plate for a scaffold is formed by bending both sides of a thin steel plate formed into a generally inverted trapezoidal shape in the same width in the opposite direction to each other to form a substantially Z-shaped center web and flanges on both sides. While being formed into a U-shape, the upper end of the central web and the upper end of the one flange are joined by welding a scaffolding pedestal for a thin steel plate having one side equal to the flange width and having a rectangular shape by welding. A scaffolding strut having a leg portion formed thereon, and a web at the upper end of the leg portion with a footboard for a scaffold and a thin steel plate having a rectangular shape formed at the upper end of the other flange are formed in a generally Z-shape with the same width as the flange. By joining the ends by welding, it became possible to form a column for supporting a lightweight vertical movable scaffold with a simple structure.

  According to the third aspect of the present invention, a concrete floor fixing member formed by bending both ends of a thin steel plate into a substantially Z-shape at the lower end of a support with a tread plate for a scaffold is fixed by bolts and nuts. In this way, it is not necessary to cover the entire new building with scaffolding, so that installation costs and installation time can be greatly reduced, and the vertically movable scaffold can be easily fixed to the beams of reinforced concrete buildings. As a result, the vertically movable scaffolding can be easily moved to and installed on the upper and lower floors.

  According to the invention as set forth in claim 4, by attaching the scaffold sheet to the upper end fixing cross beam and the lower end fixing cross beam, the vertically movable outer scaffold and the curing sheet can be integrally configured. Thus, it has become possible to easily prevent building materials and tools from falling to the periphery.

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

  1 to 14 show an embodiment of the present invention.

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

  Fig. 1a shows the vertically movable external scaffold 1 of the present invention in a front view, and Fig. 1b shows the vertically movable external scaffold 1 in a right side view. The vertically movable outer scaffold 1 is composed of a pair of first pillars 4 with a footboard support for a scaffold and a second pillar 5 with a footrest for a footboard to support the outer scaffold 1. At the upper ends of the first supporting column 4 with a tread platform and the second supporting column 5 with a scaffold, both sides of a rectangular thin steel plate (1.6 mm thick) are bent in the opposite direction with the same width. Both ends of an upper end fixing cross beam 2 formed in a substantially Z-shape are attached with bolts 11 and 20 and nuts 27 and 213 (shown in FIG. 10), and a pair of first scaffolding steps 4 with a footboard support for a scaffold. At the lower end of the supporting column 5 with a tread holder for scaffolding 2, a rectangular thin steel plate (thickness 1.6 mm) is formed into an L-shape, and both ends of a lower end fixing horizontal beam 9 are bolts 17, 25 and a nut 32. Attached by 211 (shown in FIG. 10). Further, since the worker rides on the height of 1 m from the lower end of the first supporting column 4 with a tread plate support and the second column 5 with a tread supporting plate and performs work from the outdoor side, a rectangular thin steel plate (Thickness: 1.6 mm) The opposite side of the scaffold tread plate 6 formed by bending the both sides of the same width in the opposite direction in the opposite direction and forming a substantially Z-shape with the central web and the flanges on both sides has bolts 13, 14, 22, 23 and nuts. 29, 30, 212 (shown in FIG. 10) and 216 (shown in FIG. 10). To further reinforce the tread 6 for scaffolding, two sides of a rectangular thin steel plate (thickness 1.6 mm) are bent in the opposite direction at the same width in the opposite direction and formed into a generally Z-shape with a central web and flanges on both sides. One end of each of the first oblique fixing strut 7 and the second oblique fixing strut 8 is fixed to the flange of the scaffolding tread 6 with bolts 18 and 19, a nut 229 (shown in FIG. 13), and a nut (not shown). Is attached to the first supporting column 4 with a footboard support for a scaffold and the second supporting column 5 with a footboard for a scaffolding by bolts 15, 24, nuts 31, and nuts (not shown). Of the scaffolding footboard 6 can be suppressed. Further, both sides of a rectangular thin steel plate (1.6 mm thick) 1.20 m below the upper end of the first scaffolding step supporting stand 4 and the second scaffolding step supporting stand 5 have the same width. Both ends of the intermediate fixing horizontal beam 3 formed in a substantially Z-shape with the center web and the flanges on both sides bent in the opposite direction are bolts 12 and 21, nuts 28 and nuts 189 (shown in FIG. 10) for the first scaffolding step. The state which attached to the flange of the temporary support stand size support | pillar 4 and the 2nd support | pillar 5 with a treadboard support for a scaffold is shown.

  FIG. 2 is a perspective view showing the vertically movable outer scaffold 1 described with reference to FIG. As shown in FIG. 10 and FIG. 11, the upper end fixing horizontal beam 2 has a strength of a rectangular thin steel plate having a thickness of 1.6 mm, a length of 3.05 m, and a width of 114 mm at both ends of a long side portion of the thin steel plate. In order to increase the height, the two sides of the rectangular thin steel plate having a width of 100 mm after bending both ends at a width of 7 mm at a right angle to each other in a direction opposite to each other at a right angle of 30 mm in a direction opposite to each other. 2 is formed into a substantially Z-shape by a central web 40 mm wide 190 and flanges 191 and 193 30 mm wide on both sides, and at a position 15 mm away from both ends of the flange 193 of the upper end fixing cross beam 2 thus formed. Holes 192 and 194 having a diameter of 10 mm are formed at the positions where the center lines of the flanges 193 intersect, and the scaffold struts 55 shown in FIGS. The positions of the holes 63 and 128 having a diameter of 10 mm formed at positions where the center lines of the flanges 68 and 133 intersect with each other at positions 15 mm away from the upper ends of the flanges 68 and 133 are aligned with the bolts 11 and 20 and the nuts 27 and 213. (Shown in FIG. 10) shows a state in which the upper end fixing horizontal beam 2 is attached to the first supporting column 4 with a tread platform for a scaffold and the second supporting column 5 with a tread platform.

  Further, as shown in FIGS. 10 and 11, the width of the both ends of the long side portion of the thin steel plate having a thickness of 1.6 mm, a length of 3.05 m, and a width of 304 mm is shown in FIG. 7mm is bent 180 degrees in opposite directions to increase the strength, and both ends of the rectangular thin steel sheet having a width of 290mm after bending both ends 7mm in width are further bent 70mm in width at right angles to each other in the opposite direction. The cross beam 2 for fixing the part is formed into a substantially Z-shape with a web 185 having a width of 150 mm at 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 forming cross beam 3 for fixing the intermediate part. Holes 186 and 188 having a diameter of 10 mm are formed at positions where the center lines of the flanges 187 intersect at remote positions, and the holes 186 and 188 are shown in FIGS. The holes 183 and holes (not shown) having a diameter of 10 mm, which are formed at positions where the center lines of the flanges 68 and 133 intersect at positions 1.235 m away from the upper ends of the flanges 68 and 133 of the scaffolding supports 55 and 120, respectively. The cross beams 3 for fixing the intermediate portion are attached to the first supporting column 4 with the tread platform for the first scaffold and the second supporting column 5 with the tread platform for the second scaffold using the bolts 12 and 21 and the nuts 28 and 189 (shown in FIG. 10). It shows the state that it was turned on.

  Further, as shown in FIGS. 10 and 11, the scaffold tread 6 of FIG. 2 has a rectangular thickness of 1.6 mm, a length of 3.05 m, and a width of 304 mm. By bending 180 degrees in opposite directions to increase the strength, and also bending both ends of the long side of the rectangular thin steel sheet having a width of 290 mm after bending both ends at a width of 7 mm, further bending 70 mm in width at right angles to the opposite direction to each other. The scaffold tread 6 is formed into a substantially Z-shape with a 150 mm central web 198 and 70 mm wide flanges 196 and 199 on both sides, and the flanges 196 and 199 on both sides of the scaffold tread 6 thus formed. A hole 195, a hole 182 (shown by a dotted line) and a hole 10 mm in diameter at a position where the center lines of the flange 196 and the flange 199 intersect each other at a position 15 mm away from both ends. 97, a hole 200 is formed, and the holes 195 and 182 (shown by dotted lines) and the holes 197 and 200 are respectively 15 mm from the lower ends of the flanges 68 and 133 of the scaffolding supports 55 and 120 shown in FIGS. The holes 69 and 134 having a diameter of 10 mm formed at positions where the center lines of the flanges 187 intersect at the distant positions and the holes 197 and 200 formed at both ends of the flange 199 of the scaffolding tread plate 6 coincide with each other. Holes 90 and 155 formed at positions where the center lines of the flanges 94 and 158 intersect at 15 mm from the upper ends of the flanges 94 and 158 of the leg portions 57 and 122 for the scaffolding platform stand, and the scaffolding platform 6 of FIGS. The holes 195 and 182 (shown by dotted lines) made at positions that are 15 mm from both ends of the flange 196 and where the center line of the flange 196 intersects are aligned with each other, and 6 are placed on the tops of the footholds 56, 121 of the footholds 57, 122 of the footrests 57, 122 for the four footings 13, 14, 22, 23 and four bolts 13, 14, 22, 23. The state where the scaffold treads 6 are attached to the first scaffold tread support 4 and the second scaffolds support 5 with nuts 29, 30, 212, 216 is shown.

  Further, as shown in FIG. 8a, the lower end fixing cross beam 9 in FIG. 2 shows a state in which a 1.6 mm-thick thin steel plate is formed into a convex shape in which all the corners intersecting with the outer dimensions are right angles. The length of the side 250 of the rectangular bent portion 209 thus formed is 3.04 m, the length of the right upper side 251 and the left upper side 260 facing each other is 47 mm, and the rectangular right bent portion is further formed. The length of the protruding upper right side 252 and the lower right side 254 of the projection 215 facing each other are both 40 mm, and the length of the protruding right sleeve side 253 and the protruding right turn curve 255 facing the parallel are both 37 mm, thus formed. A hole 210 having a diameter of 10 mm is formed at a position 20 mm away from the projected right sleeve side 253 and 15 mm away from the projected upper right side 252 of the right bent portion 215, and the rectangular bent left bent portion 206 faces in parallel with each other. The length of the protruding upper left side 259 and the length of the protruding left lower side 257 are both 40 mm. A hole 207 having a diameter of 10 mm is formed at a position 20 mm away from the protruding left sleeve 258 at the end of the left bent portion 206 formed at 37 mm and at a position 15 mm away from the projected upper left side 259 at both ends, and further turned left. The length of the folding curve 261 facing the parallel and the length of the side 256 of the rectangular bent portion 208 adjacent to the portion 206 are both 3.04 m. In this way, the lower end fixing cross beam 9 is formed into a convex shape by the bent portion 209, the bent portion 208, the right bent portion 215, and the left bent portion 206, and the side 250 thus formed has A portion 7 mm wide from the end of the side 256, protruding lower right side 254, and protruding lower left side 257 facing each other is bent 180 degrees in opposite directions to increase the strength, and the end is bent 180 degrees. The bent part 208, the right bent part 215, and the left bent part 206 facing the convex bent part 209 are bent at a right angle at the position of the bent curve 261, and then the right bent part 215 protrudes from the bent part 208. It is bent at a right angle at the position of the right turn curve 255, and the upper right side 251 and the upper right side 252 are joined by welding. Similarly, the left turn portion 206 is formed at a right angle at the position of the left turn curve 262 projecting with respect to the bent portion 208. Ri bending, shows further a state where the left upper side 260 and the projecting upper left side 259 are joined by welding in a perspective view in FIG. 8b.

  Further, as shown in FIG. 7, the first supporting column 4 with a footboard support for a scaffold shown in FIG. 2 includes a supporting platform 120 forming an upper portion, a leg portion 122 for a supporting platform for a scaffolding forming a lower portion, and a scaffold support 120. And a rectangular scaffolding tread stool 121 attached between the scaffolding stool pedestal feet 122. As shown in FIG. 7A, the scaffolding support 120 shows a thin steel plate having a thickness of 1.6 mm formed in a rectangular shape according to the external dimensions. The scaffolding support 120 is formed of a rectangular 1.6 mm thick, 3.05 m long, 114 mm wide thin steel plate having both sides 3.05 m long and 7 mm wide reinforcing bending portions 129 and 145 together with a bending curve 131, In order to increase the strength at the position of 141, the plates are bent 180 degrees in opposite directions to each other, and the flanges 133 and 140 on both sides of the rectangular thin steel plate after bending both sides at a width of 7 mm are further extended from each other at the positions of the folding curves 131 and 142. The scaffolding support 120 was formed into a generally Z-shape with a web 143 having a width of 40 mm at the center and flanges 133 and 140 having a width of 30 mm on both sides by being bent at a right angle in the reverse direction with a width of 3.05 m and a width of 30 mm in the reverse direction. At a position 15 mm away from the end 126 of the flange 133 of the scaffolding support 120, the diameter 1 is set at the position where the center line of the fold curve 131 and the fold curve 132 intersects. A hole 128 having a diameter of 10 mm and a hole 134 having a diameter of 10 mm at a position where the center line of the bent curve 131 and the center line of the bent curve 132 intersect at a position 35 mm away from the end 136 allow the scaffolding support 120 to be moved as shown in FIG. It is formed.

  In addition, the treadboard stand 121 for scaffolding is a rectangular thin steel plate having a thickness of 1.6 mm. The length of the side A 146 and the side C 148 facing each other is 30 mm, and the length of the side B 147 and D side 149 facing the parallel are both 30 mm. Both lengths are 150 mm.

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

  Further, as shown in FIG. 7B, the end 153 of the foot 122 for the scaffolding pedestal and the A side 146 of the footrest pedestal 121 for the scaffolding are welded, and the end of the foot 122 for the scaffolding pedestal rest. The portion 152 and the D side 149 of the scaffolding tread rest 121 are joined by welding, and the end 151 of the scaffolding tread rest leg 122 and the end 138 of the scaffolding support 120 are joined by welding. The C side 148 of the treadboard support 121 and the end 136 of the scaffolding support 120 are joined by welding, and the end 152 of the scaffolding support leg 122 and the end 137 of the scaffolding support 120 are joined by welding. As a result, as shown in FIG. 7C, the first supporting column 4 with a tread plate holder for a scaffold is formed.

  Further, as shown in FIG. 6, the first supporting column 5 with a tread holder for a scaffold shown in FIG. 2 includes a scaffolding column 55 forming an upper portion, a leg 57 for a treading platform for a scaffold forming a lower portion, and a scaffolding column 55. And a rectangular scaffolding tread slat 56 that is attached to be sandwiched between the scaffolding tread stool legs 57. As shown in FIG. 6a, the scaffolding strut 55 is formed by folding a 7 mm wide reinforcing bending portion 65, 79 on both sides of a thin steel plate having a thickness of 1.6 mm, a length of 3.05 m, and a width of 114 mm. , 76 are bent 180 degrees in opposite directions to increase the strength, and the flanges 68, 75 on both sides of the rectangular thin steel sheet after bending both sides 7 mm in width are further widened at the positions of the fold curves 66, 77. By being bent at right angles in opposite directions by 30 mm, the scaffolding strut 55 is formed into a generally Z-shape with a central web 40 mm wide 78 and flanges 68, 75 on both sides with a width of 30 mm. A hole 63 having a diameter of 10 mm is formed at a position where the center line of the fold curve 67 and the center line of the fold curve 66 intersect at a position 15 mm away from the end 61 of the sample 68, and 35 mm from the end 71. Scaffolding strut 55 as shown in Figure 6b is formed by opening a hole 69 having a diameter of 10mm to the center line intersects the position of the fold line 67 and fold line 66 at the position.

  Further, the treadboard holder 56 for scaffolding has a rectangular shape made of a thin steel plate having a thickness of 1.6 mm, and the lengths of the side A 81 and the side C parallel to each other are both 30 mm, and the side B 82 and the side D parallel to each other in parallel. The length of each 84 is 150 mm.

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

  Further, as shown in FIG. 6B, the end 88 of the foot 57 for the scaffolding stand is joined to the A side 81 of the footrest 56 for the scaffolding by welding, and the end of the foot 57 for the scaffolding footrest. The part 87 and the B side 82 of the scaffolding tread stool 56 are joined by welding, and the end 86 of the scaffolding tread stool leg 57 and the end 73 of the scaffolding strut 55 are joined by welding. The C side 83 of the treadboard support 56 and the end 71 of the scaffold support 55 are joined by welding, and the end 87 of the scaffold support leg 57 and the end 72 of the scaffold support 55 are joined by welding. Thereby, as shown in FIG. 6c, the second support column 5 with a tread plate holder is formed.

  Further, as shown in FIG. 12, the second diagonally fixed support column 8 of FIG. 2 shows a state in which a thin steel plate having a thickness of 1.6 mm is cut into a flat plate shape according to the outer shape. The reinforcing bent part 302 has a shape of an equilateral trapezoid, and the sides 300 and 305 are both 10 mm in length, the length of the side 301 is 1.260 m, the length of the bent curve 303 is 1.274 m, and the side 300 and the side The angle at which 301 intersects is 135 °, the angle at which side 300 intersects with bent curve 303 is 45 °, the angle at which side 305 intersects with side 301 is 135 °, and the angle at which side 305 intersects with bent curve 303 is 45 °. Further, the flange 224 adjacent to the reinforcing bent portion 302 has an equilateral trapezoidal shape, the lengths of the sides 317 and 306 are both 42 mm, the length of the bent curve 304 is 1.334 m, and the sides 300 and 317 are aligned. Similarly, the sides 305 and 306 are also formed in a straight line, the angle at which the side 317 intersects with the fold curve 303 is 135 °, the angle at which the side 317 intersects with the fold curve 304 is 45 °, and similarly, the side 306 and the fold curve The angle at which 303 intersects is 135 °, and the angle at which side 306 intersects with bent curve 304 is 45 °. Further, a hole 226 having a diameter of 10 mm is formed in the flange 224 at a position 35 mm to the right from the vertex where the side 317 intersects with the bent curve 304 on the center line of the bent curve 303 and the bent curve 304. A hole 221 having a diameter of 10 mm is formed at a position 40 mm leftward from the apex of the intersections 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 307 are both 40 mm, and the side 307 intersects the folding curves 304 and 310 at right angles. Further, the flange 222 adjacent to the web 223 is an equilateral trapezoidal shape, the lengths of the sides 315 and 308 are both 42 mm, the length of the fold curve 311 is 1.340 m, and the angle at which the fold curve 310 intersects the side 315 is 135 °. The angle at which the side 315 intersects the bent line 311 is 45 °, the angle at which the side 308 intersects the bent line 310 is 135 °, and the angle at which the side 308 intersects the bent line 311 is 45 °. Further, the reinforcing bent portion 313 adjacent to the flange 222 has a trapezoidal shape with an inverted trapezoidal shape. The lengths of the side 309 and the side 314 are both 10 mm, the length of the side 312 is 1.326 m, and the side 314 intersects the bent curve 311. The angle is 45 °, the angle at which the side 314 intersects the side 312 is 135 °, the angle at which the side 309 intersects the bent curve 311 is 45 °, and the angle at which the side 309 intersects the side 312 is 135 °.

  The reinforcing bends 302 and 313 each having a width of 7 mm on both sides of the second oblique fixed support 8 thus formed are bent 180 degrees in opposite directions to each other in order to increase the strength at the positions of the curved curves 303 and 311. By bending the 224 and the flange 222 at the positions of the fold curves 304 and 310 at right angles to each other in the opposite direction, the second oblique fixed support columns 8 are formed as shown in FIG. 12B. The second oblique fixing post 8 thus formed is formed in the hole 96 formed in the flange 94 of the foot 57 for the scaffolding footrest described with reference to FIG. 6A and in the flange 196 of the scaffolding footplate 6 shown in FIG. As shown in FIG. 14 by fixing the bolts 19 and 24 and the nuts 31 and 229 to the holes 228 (indicated by dotted lines), the second oblique fixing strut 8 becomes the scaffolding step 6 and the second scaffolding step. It is fixed to the supporting column 5 and it is possible to suppress the bending of the scaffolding treads 6 even when an operator rides on the scaffolding treads 6.

  Similarly, the first diagonal fixed support 7 in FIG. 2 is formed in a shape facing the second diagonal fixed support 8, and the bolt 15 is attached to the scaffolding tread 6 and the first scaffolding treading support 4. 18 and a nut (not shown).

  Further, the second concrete floor fixing member 10 shown in FIG. 2 is formed by shaping a rectangular thin steel plate having a thickness of 1.6 mm as shown in FIG. The cut-out upper side 265 of the location is cut off by 37 mm, and the cut-off right side 266 is cut off by 40 mm. The reinforcing bent portion 280 has a rectangular shape, and the length of each of the side 274 and the bent curve 271 is 0.6 m, and the length of each of the side 276 and the side 279 is 7 mm. Further, the flange 201 adjacent to the reinforcing bent portion 280 has a rectangular shape, the length of the bent curve 272 is 0.6 m, and the lengths of the sides 270 and 263 are both 30 mm. Further, the web 214 adjacent to the flange 201 has a rectangular shape, the length of the fold curve 273 is 0.56 m, the lengths of the sides 269 and 264 are both 30 mm, and the fold curve 272 is 20 mm away from the side 264. A hole 205 having a diameter of 10 mm is formed at a position where the center line of the folding curve 273 intersects. Further, the flange 203 adjacent to the web 214 has a rectangular shape, the length of the fold curve 267 is 0.56 m, the lengths of the sides 266 and 268 are both 30 mm, and 50 mm apart from the sides 266 and 268 at both ends. Holes 204 and 202 having a diameter of 10 mm are formed at positions where the center lines of the folding curves 273 and 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 7 mm. The length of the notch upper side 265 is 40 mm, and the sides 276, 270, 269, 268, and 277 are formed in a straight line, and the sides 279, 263, and 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 to each other in order to increase the strength at the positions of the bending curves 271 and 267. , The flange 201 and the flange 203 are bent at right angles in the directions opposite to each other at the positions of the folding curves 272 and 273, so that the second concrete floor fixing member 10 as shown in FIG. It is formed in a substantially Z-shape with a shape cut into the L shape by 40 mm short.

  As shown in FIG. 6, FIG. 8, FIG. 9, FIG. 10, and FIG. 11, the second concrete floor fixing member 10 thus formed has a flange 203 of the second concrete floor fixing member 10 and a tread plate for a scaffold. The notched right side 266 of the flange 203 is brought into contact with the end 98 of the flange 94 so that the flange 94 of the base leg 57 is at a right angle, and a hole formed in the web 214 of the second concrete floor fixing member 10. The web 214 of the second concrete floor fixing member 10 and the foot of the footrest for scaffolding are formed so that the holes 205 formed in the web 106 of the footrest for foothold for scaffolding 205 and the web 205 are formed in the same hole shape. The webs 57 are brought into contact with each other such that the holes 205 of the webs 214 and the holes 207 of the bent portions 206 of the lower end fixing transverse beam 9 are formed in the same hole shape, and the bolt 25 is connected to the holes 207, 205, and 102. By penetrating and fixing with the nut 32, as shown in FIG. 11, the lower end fixing cross beam 9, the second scaffolding tread pedestal support 5, and the second concrete floor fixing member 10 are integrated, and the scaffolding treads are integrated. The flange 94 of the pedestal leg 57 and the second concrete floor fixing member 10 are configured to intersect at right angles. In addition, the first support 4 with a tread plate support for the scaffold, the cross beam 9 for fixing the lower end portion, and the first concrete floor fixing member 33 are similarly fixed with the bolt 17 and the nut 211 as shown in FIGS. Is done.

  As described above, the first concrete floor fixing member 33 and the second concrete floor fixing member 10 are attached to the first scaffolding step supporting stand 4 and the second scaffolding step supporting stand 5 by the bolts 17 and 25. By fixing with nuts 32 and 211 and fixing the first concrete floor fixing member 33 and the second concrete floor fixing member 10 to the beam with the driving anchor 16 and the driving anchor 26 as shown in FIG. The work 41 can be safely performed on the scaffold tread 6 of the vertically movable external scaffold 1.

  FIG. 3 shows the upper end of the scaffolding sheet 40 with a sheet string or a rubber band in a hole 39 formed in the upper end fixing transverse beam 2 in order to attach the scaffolding sheet 40 to the outside of the building of the vertically movable outer scaffold 1 described in FIG. At the same time, the lower end of the scaffolding sheet 40 was attached to the hole 38 formed in the lower end fixing cross beam 9 with a sheet string or a rubber band, so that the worker 41 shown in FIG. Even in this case, the safety of the work is maintained because the tool or the like falls into the building under construction along the scaffold sheet 40 without falling to the ground, and the scaffold sheet 40 is further integrated with the vertically movable external scaffold 1. With the attachment, it is not necessary to remove the scaffolding sheet 40 even when the vertical scaffolding outer scaffold 1 is relocated, so that the work can be made more efficient.

  FIG. 4 shows a state in which the worker 41 rides on the scaffold tread 6 of the vertically movable outer scaffold 1 described in FIG.

  FIG. 5 shows a state in which the vertically movable external scaffold 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 and 47 and beams 45 and 46. The first concrete floor fixing member 33 and the second concrete floor fixing attached to the lower ends of the first scaffolding step supporting stand 4 and the second scaffolding step supporting stand 5 of the vertically movable external scaffold 1. By inserting the driving anchors 16 and 26 into the holes opened in the member 10 and fixing the first concrete floor fixing member 33 and the second concrete floor fixing member 10 to the beams 46 with the driving anchors 16 and 26, The mobile outer scaffold 1 is fixed to the beam 46. In this way, the vertically movable outer scaffold 1 is configured to be lightweight and easy to assemble, so that even when the gap between the adjacent building is narrow, the vertically movable outer scaffold 1 can be placed outside the building under construction. The external scaffolding 1 can be easily installed, making it possible to work safely from the outside of the building, and disassembling and relocating, as well as moving to the upper floor in the assembled state The first concrete floor fixing member 10 and the second concrete floor fixing member 33 of the vertically movable outer scaffold 1 are fixed to the beams 46 by the driving anchors 16 and 26, so that the vertically movable movable scaffold 1 can be moved vertically. The worker 41 can get on the scaffold 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. On top Parts fixing crossbeam 2 has become possible to serve the fall prevention of the worker 41 by serving as a handrail.

  As described above, based on the embodiment, the vertically movable external scaffold for a high-rise building without adjacent land according to the present invention has been described in detail, but the present invention is not limited to the above embodiment, Even if various modifications are made without departing from the spirit of the invention, it is needless to say that the modifications belong to the technical scope of the present invention.

1 shows a front and a right side view of a vertically movable external scaffold according to an embodiment of the present invention. The up-and-down movement type external scaffold according to the embodiment is shown in a perspective view. 3 shows a state in which a scaffold sheet is attached to the vertically movable external scaffold shown in FIG. 2 according to the embodiment. FIG. 4 shows a state in which an operator rides on a tread for a scaffold of the vertically movable external scaffold shown in FIG. 3 according to the embodiment. 3 shows a state in which a vertically movable external scaffold according to the embodiment is attached to floors and beams of a building. The thin steel plate forming the second scaffold with a footboard support for a scaffold shown in FIGS. 1, 2, 3, 4, and 5 according to the embodiment is formed into a flat shape and bent. The state joined by welding is shown in a perspective view. The thin steel sheet forming the first scaffolding tread support stand shown in FIGS. 1, 2, 3, 4, and 5 according to the embodiment is flattened and bent. The state joined by welding is shown in a perspective view. 1, 2, 3, 4, and 5 in which the thin steel sheet forming the lower end fixing cross beam shown in FIGS. 1, 2, 3, 4, and 5 is flat-plated, and is bent and formed by welding. Is shown in a perspective view. 1, 2, 3, 4, and 5 are perspective views showing a state in which a thin steel plate forming a second concrete floor fixing member shown in FIGS. Indicated by FIG. 3 is a perspective view showing a state in which the vertically movable outer scaffold according to the embodiment is disassembled. 11 shows a state in which the vertically movable external scaffold shown in FIG. 10 according to the embodiment is assembled. A perspective view of a state in which a thin steel plate forming the second oblique fixed support column 8 shown in FIGS. 1, 2, 3, and 4 according to the embodiment is cut into a flat plate shape and a bent state is shown. . A perspective view of a state before fixing the second oblique fixing strut shown in FIGS. 1, 2, 3, 4, and 5 to the second strut with a tread plate support and the tread for a scaffold according to the embodiment. Shown in the figure. FIG. 14 shows a state in which the second diagonally fixed support shown in FIG. 13 according to the embodiment is fixed to a second support with a footboard support for a scaffold and a footboard for a foothold.

DESCRIPTION OF SYMBOLS 1 Vertically movable outer scaffold 2 Upper end fixing horizontal beam 3 Intermediate fixing horizontal beam 4 First supporting column with scaffolding platform 5 Second supporting column with scaffolding platform 6 Scaffolding platform 7 First diagonal fixing Post 8 Second oblique fixing post 9 Lower beam fixing cross beam 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 bolt 25 bolt 26 driving anchor 27 nut 28 nut 29 nut 30 nut 31 nut 32 nut 33 first concrete floor fixing member 38 hole 39 hole 40 scaffolding sheet 41 worker 42 floor slab 43 floor slab 44 pillar 45 beam 46 beam 47 Pillar 55 Scaffolding prop 56 Footboard for scaffold 57 Foot for footboard for scaffold 58 End 59 Part 60 End part 61 End part 62 End part 63 Hole 64 Side 65 Reinforcement bending part 66 Fold curve 67 Fold curve 68 Flange 69 Hole 70 End part 71 End part 72 End part 73 End part 74 End part 75 Flange 76 Fold curve 77 Folding curve 78 Web 79 Reinforcement bending part 80 Side 81 A side 82 B side 83 C side 84 D side 85 End part 86 End part 87 End part 88 End part 89 End part 90 Hole 91 Reinforcement bending part 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 Fold curve 104 Flange 105 Side 106 Web 107 Fold curve 108 Reinforcement bending part 120 Scaffolding pillar 121 Scaffold Footboard for platform 122 Foot for footboard for platform support 123 End 124 End 125 End 126 End 127 End 128 Hole 129 Reinforcement bent part 130 Side 131 Fold curve 1 2 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 Side 145 Reinforcement Bend 146 A Side 147 B Side 148 C Side 149 D side 150 End 151 End 152 End 153 End 154 End 155 Hole 156 Reinforcement bending part 157 Fold curve 158 Flange 159 Fold 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 Reinforcement bending part 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 19 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 Projected upper right side 253 Projected right sleeve side 254 Projected lower right side 255 Projected right turn curve 256 Side 257 Projected left lower side 258 Projected left sleeve side 259 Projected upper left side 260 Left side Upper side 261 Fold curve 262 Projected left turn curve 263 Side 264 Side 265 Notch Upper side 266 Notch right side 267 Fold curve 268 Side 269 Side 270 Side 271 Fold curve 272 Fold curve 273 Fold curve 274 Side 275 Side 276 Side 277 Side 78 side 279 side 280 reinforcing bending section 281 reinforcing bending section 300 side 301 side 302 reinforcing bending section 303 bending curve 304 bending curve 305 side 306 side 307 side 308 side 309 side 310 bending curve 311 bending curve 312 side 313 Bending part for reinforcement 314 side 315 side 316 side 317 side

Claims (4)

In the temporary scaffold used to install outside the building and perform construction work,
Arranged at intervals, a pair of scaffolding treadboard supports with a pair of symmetrically formed thin steel plates,
In order to fix the pair of symmetrically formed scaffolding treads with a treading support with a treads, a generally Z-shaped scaffolding tread,
In order to be attached to the upper end portion, approximately the middle portion and the lower end portion of the pair of scaffolding tread support columns, the upper end fixing cross beam, the middle portion fixing cross beam, and the lower end fixing cross beam formed of a thin steel plate into a substantially Z-shape. When,
In order to fix the scaffolding tread and the scaffolding tread support, two diagonally fixed struts formed of thin steel plates in a substantially Z-shape are arranged in a C-shape to provide a scaffolding tread and a scaffolding tread support. A vertically movable external scaffold for a high-rise building with no vacant land adjacent to a pillar.   The supporting plate with a tread plate for a scaffold is formed by bending both sides of a thin steel plate formed into a generally inverted trapezoidal shape in the same width in opposite directions to each other and forming a substantially Z-shape with a central web and flanges on both sides. The upper end and the upper end of the one flange are joined by welding a scaffolding stepboard pedestal made of a thin steel plate having one side equal to the flange width and having a rectangular shape to form a leg with a scaffolding stepping board pedestal. The web at the upper end of the pedestal and the upper end of the other flange are joined by welding to the ends of a scaffolding column formed in a generally Z-shape with both sides of a rectangular thin steel plate having the same width as the flange. The vertically movable external scaffold for a high-rise building without an empty space adjacent to the land according to claim 1.   2. A high-rise building with no adjacent vacant space according to claim 1, wherein a concrete floor fixing member formed by bending both ends of a thin steel plate into a substantially Z-shape is fixed to a lower end of a pillar with a footboard for a scaffold by bolts and nuts. Vertical scaffold outside scaffolding.   The vertically movable external scaffold for a high-rise building with no vacant land according to claim 1, wherein a scaffold sheet is attached to the upper end fixing cross beam and the lower end fixing cross beam.

Images