JP2009209543A - Scaffolding board, and single pipe and coupler scaffolding structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scaffolding board which is used for a single pipe and coupler scaffolding to be constructed, particularly, in a narrow place, which dispenses with a special mounting structure on the side of a pipe support, which enables the free adjustment of erection height, and which can prevent a step from being made between the adjacent scaffolding boards. <P>SOLUTION: In the scaffolding board 1A, clamping implements 2A and 2B for a pipe are fixed in positions to deviate from each other on high and low sides opposite to each other via a mounting plate 11, at both ends of a scaffolding body 10. A difference of elevation between both the clamping implements 2A and 2B makes both the clamping implements 2A and 2B of the adjacent scaffolding boards 1A and 1A deviate from each other in the upper and lower positions, and makes them fixed to the pipe supports 3, respectively, so that top surfaces of both the scaffolding boards 1A and 1A can be set at the same height. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a scaffold plate suitable for a single-pipe scaffold constructed in a narrow space between a building outdoor wall such as a low-rise house built on the site and the site boundary, and a single-pipe scaffolding structure using this scaffold plate. .

  In general, in a single pipe scaffolding, two pipe struts on the inside and outside of the building wall are erected at predetermined intervals along the wall surface direction, and the inner struts are connected with pipe horizontal bars at multiple locations above and below. At the same time, connect the inner and outer struts with horizontal rails and brackets, use these horizontal rails and brackets to lay the scaffolding plate parallel to the wall surface, and attach staircases and ladders for ascending and descending to important points. ing. However, in houses and urban buildings near large cities with high land prices, the width from the outdoor wall to the adjacent site boundary is as narrow as 60 cm or less, making it difficult to build a scaffold with two internal and external posts as described above. There are many cases.

Therefore, in the single pipe scaffolding constructed in a narrow area, the pipe struts are not separated from each other inside and outside, but one side scaffolding that is erected in a row along the wall surface direction and connected by a horizontal bar is attached to each pipe strut. The scaffolding plate is held in a cantilever state via a bracket (Patent Document 1), or hook metal fittings provided at both ends of a narrow scaffolding plate are hooked to a receiving frame fixed to each pipe column (Patent Document 1). 2) The structure is adopted.
JP-A-10-77734 JP 2004-116193 A

  However, in the conventional one-side scaffolding, the height of the scaffolding plate is determined by the position of the bracket and the receiving frame in the pipe strut, so the scaffolding height cannot be adjusted depending on the construction position or construction type of the building wall surface, Depending on the work content, the efficiency may be significantly reduced, and it is necessary to fix the bracket latching part and the receiving frame to the pipe strut, which increases the processing cost of the pipe strut and the pipe material There was a problem that it became exclusive and could not be used for other scaffold parts such as horizontal bars. Note that the method of holding the scaffolding plate in a cantilevered state with the bracket requires an arrangement space width of the scaffolding plate between the building wall surface and the column, and thus cannot be applied in a narrower construction environment.

  In view of the circumstances described above, the present invention does not require a separate mounting structure on the pipe column side, particularly for a single pipe scaffold constructed in a narrow area between a building outdoor wall and a site boundary of a low-rise house, etc. It is an object of the present invention to provide a scaffold plate that can freely adjust its height and prevent a step between adjacent ones, and a single-tube scaffold structure that can achieve high working efficiency in a narrow area using this scaffold plate.

  If the means for achieving the above object is shown with reference numerals in the drawings, the scaffold plate according to the first aspect of the present invention has pipe clamps 2A and 2B (2C) attached to both ends of the scaffold plate body 10. The clamp tool 2A on at least one end side thereof is fixed to a position disengaged from one side of the scaffolding plate main body 10 with respect to the scaffolding plate main body 10 via a mounting plate 11 protruding from the scaffolding plate main body 10 to one side of the upper and lower sides. Yes.

  According to a second aspect of the present invention, in the scaffold plate of the first aspect, the clamp plates 2A and 2B at both ends are attached to the scaffold plate main body via the attachment plates 11 and 11 protruding from the scaffold plate main body 10 in the opposite directions. 10 is fixed to positions deviating from each other on the opposite sides of the height.

  According to a third aspect of the present invention, in the scaffold plate of the first aspect, the clamp tool 2A on one end side is fixed to the scaffold plate main body 10 via the mounting plate 11 at a position deviated in one of the high and low directions, and the other end. The clamp device 2C on the side projects from the end face of the scaffold plate body 10 in the longitudinally extending direction.

  The single-pipe scaffolding structure according to the invention of claim 4 includes the scaffolding plates 1A (1B)... According to any one of claims 1 to 3 between the pipe struts 3 erected in a row at predetermined intervals. Scaffold plates 1A (1B) and 1A (1B) which are installed via pipe clamps 2A to 2C at both ends and are adjacent to each other in each pipe column 3 are substantially the same upper surface due to the difference in height of the clamps 2A to 2C. The height is set to be configured.

  Next, if the effects of the present invention are indicated with reference numerals in the drawings, the scaffold plate according to the invention of claim 1 is provided with pipe clamps 2A at both ends with respect to the pipe struts 3 of the single-pipe scaffold S. 2B (2C) can be fixed, so that there is no need for a separate mounting structure on the pipe column 3 side, and the installation height can be freely adjusted, and the clamp tool 2A on at least one end thereof is attached to the scaffold plate body 10 On the other hand, since the clamp tool 2A, 2B (2C) between the adjacent scaffolding plates in each pipe strut 3 is positioned so as not to interfere with each other due to the height difference, the upper surface heights of both scaffolding plates are equal. Can be set.

  Since the scaffolding plate 1A according to the invention of claim 2 is in a position where the clamp tools 2A, 2B at both ends are disengaged from each other on the opposite side of the scaffolding plate body 10, in each pipe support 3 of the single tube scaffolding S, The upper surface heights of the adjacent scaffold plates 1A, 1A can be easily set equal.

  The scaffold plate 1B according to the invention of claim 3 is in a position where the clamp tool 2A on one end side is disengaged from one side of the scaffold plate main body 10 in the height direction, and the clamp tool 2C on the other end side is attached to the scaffold plate main body 10. Since the pipes 3 of the single pipe scaffolding S project from the end face in the longitudinally extending direction, the upper surface heights of the adjacent scaffold plates 1B and 1B can be easily set equal.

  According to the single pipe scaffold structure according to the invention of claim 4, the scaffold plates 1A (1B) of any one of claims 1 to 3 are respectively provided between the pipe columns 3 standing in a row at predetermined intervals. Since there is no step between the adjacent scaffolding plates 1 and 1 in each pipe support 3 through the pipe clamps 2A to 2C at both ends, an operator can safely pass on these scaffolding plates 1A (1B). In addition, the scaffold height can be freely adjusted according to the construction position of the work building wall surface, the construction type, and the like, thereby improving the work efficiency. Further, since the pipe strut 3 does not require a separate mounting structure for the scaffold plate, the pipe strut 3 can be procured at low cost.

  Embodiments of the present invention will be specifically described below with reference to the drawings. 1 is an external view of a single pipe scaffold S, FIG. 2 is a side view of the single pipe scaffold S constructed in a narrow space between adjacent buildings, FIG. 3 is a scaffold plate 1A of the first embodiment, and FIG. The attachment structure of the scaffolding plate 1A, FIG. 5 shows the scaffolding plate 1B of the second embodiment, and FIG. 6 shows the attachment structure of the scaffolding plate 1B with respect to the pipe strut.

  The single pipe scaffold S shown in FIG. 1 has a plurality of pipe struts 3 arranged in a row at predetermined intervals and connected via horizontal bars 4 made of round pipes at a plurality of upper and lower positions (four positions in the figure). In addition, scaffolding plates 1A of the first embodiment are erected at two places above and below between the adjacent pipe struts 3 and 3, for example, as shown in FIG. It is constructed as a one-sided scaffolding in a narrow ground G where the width W between F and F is less than 60 cm. In addition, each support | pillar 3 protrudes so that the short pipe-shaped footrest part 3a ... may be alternately arrange | positioned at radial direction both sides at regular intervals in the longitudinal direction, and the root is fitted to the pipe jack base 5. Yes.

  As shown in FIGS. 3 (A) to (C), the scaffold board 1A according to the first embodiment is a scaffold board main body that is formed in a narrow width of about 100 to 150 for narrow land and has anti-slip irregularities on the surface. The fixing plates 11 and 11 are welded and fixed to both end faces of the base plate 10 so as to protrude from the scaffold plate main body 10 in opposite directions, and pipe clamps 2A and 2B are provided on the front side of the trapezoidal protruding portion. Is fixedly welded in an arrangement deviating from the longitudinal projection area of the scaffold plate body 10.

  Here, the clamp tools 2A and 2B for both pipes have the same configuration, and are attached to the base frame 20 welded and fixed to the mounting plate 11 with a semicircular arc-shaped fastening frame 22 and bolts via pivot pins 21a and 21b. 23, and a pivotal portion between the pivotal support pins 21a, 21b of the base frame 20 forms a semicircular arc-shaped recess 20a in plan view, and a pipe is formed between the recess 20a and the fastening frame 22 The bolt 3 is inserted into the bifurcated latching portion 22a on the distal end side of the fastening frame 22 and the fastening nut 24 screwed into the bolt 23 is tightened to fix the pipe 3 to the pipe post 3. So that it cannot be lifted.

  As shown in FIGS. 4 (A) and 4 (B), the adjacent scaffold plates 1A and 1A in each pipe support 3 utilize the difference in height between the pipe clamps 2A and 2B at both ends, and one of the scaffold plates. By tightening and fixing the clamp tool 2A on the higher side of 1A and the clamp tool 2B on the lower side of the other scaffolding plate 1A to the position shifted vertically on the same pipe column 3, the upper surface height is made the same. It is built in.

  The horizontal bar 4 is connected to the pipe column 3 via a universal clamp 6 at the intersection with the pipe column 3. Although the detailed illustration of the universal clamp 6 is omitted, two clamp fittings similar to the pipe clamps 2A and 2B of the scaffolding plate 1A are connected so as to be relatively rotatable. The horizontal bar 4 is entangled in the lower part of the column 3 and functions as a handrail above the scaffolding board 1.

  In the single-tube scaffolding S having the above-described structure, there is no step between the adjacent scaffolding plates 1A and 1A in each pipe strut 3, so that an operator can safely pass on these scaffolding plates 1A. Since the scaffolding plate 1A is fixed by the clamps 2A and 2B for pipes, the height of the scaffolding can be freely adjusted according to the construction position and construction type of the work building wall surface, so that it is constructed on the narrow ground G Work efficiency in the scaffold can be improved. Further, since the pipe strut 3 does not require a separate mounting structure for the scaffold plate, the pipe strut 3 can be procured at low cost.

  Thus, the scaffold plate according to the present invention is not limited to the configuration in which the clamp tools 2A and 2B at both ends protrude from the scaffold plate main body 10 in the opposite directions, as in the scaffold plate 1A of the first embodiment. When the adjacent scaffolding plates are set to the same upper surface height in FIG. 3, at least one pipe clamping device on one end side is fixed to the pipe column 3 without interfering with each other. It suffices if it is in a position deviated from one side to the other with respect to the scaffold plate body 10.

  For example, in the scaffolding board 1B of the second embodiment shown in FIG. 5, for the pipe arranged on the one end side of the scaffolding board body 10 so as to be disengaged upward via the attachment plate 11 similarly to the scaffolding board 1A of the first embodiment. Although it has a clamp tool 2A, a mounting plate 12 having the same size as the end surface of the scaffold plate body 10 is welded and fixed to the other end side, and a pipe clamp tool 2C is attached to the mounting plate 12 of the scaffold plate body 10. It is fixed by welding so as to project in the longitudinally extending direction. The pipe clamp 2C on the other end also has the same configuration as the pipe clamp 2A on the one end.

  In the case of the scaffold plate 1B of the second embodiment, as shown in FIG. 6, in each pipe support 3, the other scaffold plate is placed above the clamp tool 2C protruding in the longitudinal extension direction of the adjacent one scaffold plate 1B. By placing the clamp tool 2A on the higher side of 1B and tightening and fixing it, the two scaffold plates 1B, 1B can be set to the same upper surface height.

  In addition, although not shown in the drawings as the scaffolding plate of the present invention, the scaffolding plate of the first embodiment is used instead of the clamp tool 2A arranged at a high position on one end side in the scaffolding plate 1B of the second embodiment. Also included are those provided with a clamp 2B disposed at a lower position on the other end side in 1A, and those in which both pipe clamps at both ends are located above or below the scaffold plate body 10. Thus, in the former scaffold plate provided with the clamp tool 2B arranged at the lower position, the clamp tool 2C protruding in the longitudinally extending direction of one of the adjacent scaffold plates in each pipe strut 3 contrary to the second embodiment. The clamp tool 2B on the lower side of the other scaffolding plate may be disposed below the lower side. Further, in the scaffold plate in which the pipe clamps at the both ends are separated from the scaffold plate main body 10 upward or downward, the clamps at both ends are positioned upward, and on the contrary, the pipe clamps are disengaged downward. By alternately arranging those to be performed, the adjacent scaffolding plates can be set at the same upper surface height in each pipe support 3. Further, it is also possible to arrange adjacent ones in which the clamps at both ends are displaced upward or downward and the ones in which the pipe clamps at both ends protrude in the longitudinal extension direction of the scaffold plate body 10 alternately. It is possible to set the scaffolding plates to be the same top surface height.

  Thus, the pipe clamps at both ends of the scaffold plate of the present invention may be so-called single clamps for fastening to the pipe material, and include various types whose detailed structures are different from those illustrated. In addition to the embodiment, various design changes can be made to the detailed configuration such as the length, width, thickness, anti-slip shape, and shape of the attachment plate 11 of the scaffold plate body 10.

  On the other hand, in the single-tube scaffold structure of the present invention, a simple pipe material can be used as the pipe support 3. However, when constructing as a one-side scaffold in a narrow area, as shown in FIG. 1 and FIG. It is recommended to use the pipe support 3 provided. That is, in the case of the one-side scaffold constructed in the narrow ground G as shown in FIG. 2, a staircase or a ladder cannot be attached because there is no space, but a pipe column 3 provided with a footrest 3a as in the illustrated configuration. When the worker moves between the ground and the scaffold passage or between the upper and lower scaffold passages, it is not necessary to go around from the outer positions of both ends of the scaffold each time. There is an advantage that you can come and go directly. In addition, the direction, the number of steps, the shape, the arrangement form, and the like of the footrests 3a of each pipe support 3 can be variously configured other than the examples.

  Further, in such a single-tube scaffold S in the form of one-side scaffold, in order to keep it in an upright state, for example, in the location situation of FIG. 2, appropriate struts are applied to the outer walls F, F on both sides. However, in order to maintain a more stable standing state, the single pipe scaffolding in the opposite direction (generally perpendicular direction) (not shown) is connected at both ends, and the roof of the single pipe scaffold S is connected. It is recommended that the connection at the top projecting from R is by fire.

  In addition, the installation position and the number of installation stages of the scaffolding plates 3 and the horizontal bars 4 and the arrangement interval and height of the columns 3 can be changed variously depending on the size and form of the building to be constructed and the type of construction. Needless to say.

It is a perspective view which shows one Embodiment of the single pipe | tube scaffold structure of this invention. It is a side view of the single pipe scaffold structure. The scaffold board which concerns on 1st embodiment of this invention is shown, (A) is a front view, (B) is a side view of one end side, (C) is a top view of the other end side. The erection state with respect to the support | pillar for single pipe | tube scaffolds of the scaffold board of 1st embodiment is shown, (A) is a front view, (B) is a top view. It is a front view of the scaffold board which concerns on 2nd embodiment of this invention. It is a side view which shows the construction state with respect to the support | pillar for single-tube scaffolds of the scaffold board of the second embodiment. FIG. 4B is a plan view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A, 2A Scaffolding board 10 Scaffolding board main body 11 Mounting plate 2A-2C Clamping tool for pipes 3 Pipe strut S Single pipe scaffolding

Claims (4)

  Clamping tools for pipes are attached to both ends of the scaffolding plate main body, and the clamping tool on at least one end side of the scaffolding plate body is disengaged with respect to the scaffolding plate main body via a mounting plate that protrudes from the scaffolding plate main body to one side up and down. Scaffolding board that is fixed in place.   2. The clamp device according to claim 1, wherein the clamps at both ends are fixed to positions opposite to each other on the opposite side of the scaffold plate body via attachment plates that protrude from the scaffold plate body in the upside down direction. Scaffolding board.   The clamp tool on one end side is fixed to the scaffold plate main body via the mounting plate at a position deviated in one of the heights, and the clamp tool on the other end side protrudes from the end face of the scaffold plate main body in the longitudinal extension direction. The scaffold board according to claim 1 formed.   A scaffold plate according to any one of claims 1 to 3 is installed between pipe struts erected in a line at predetermined intervals via pipe clamps at both ends, and adjacent scaffold plates at each pipe strut A single pipe scaffolding structure in which the heights of the clamps are set to substantially the same upper surface height due to the difference in height of the clamps.

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