JP2006249822A - Wall-mounting simple scaffold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall-mounting simple scaffold in which workers can safely move over between sliding-type double-barrelled ladders and a scaffold board and the scaffold board can be moved closely to a wall surface of a building to improve safety in operations at elevated places. <P>SOLUTION: Immovable ladders 9 in the two sliding-type double barrelled ladders 1 arranged in parallel at a prescribed interval are joined to each other by a stabilization unit 2 and held in an erected state at a prescribed tilt angle. Wall contacts 3 are mounted to the upper ends of movable ladders 12 in the two sliding-type double-row ladders 1. The scaffold board 5 is extended between scaffold-placing units 4 mounted to the movable ladders 12 in the two sliding-type double-barrelled ladders 1 through the use of rungs 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is a wall-mounted simple scaffolding used for interior construction and the like, more specifically, using two sliding double ladders, and can be leaned against the wall stably and in an inclined manner. The present invention relates to a wall-mounted simple scaffolding that can freely set the height position of a scaffolding plate in accordance with progress and has high safety for work at a high place.

  For example, when performing work in a high place that is out of reach in building interior construction, etc., a scaffold for the operator to use will be used, but in a temporary scaffold that is assembled by joining steel pipes with pipe joints Because it takes time and labor to assemble and dismantle, such a large scaffold is unsuitable for use in a building, so it is necessary to use a simple scaffold that can be easily carried in and out of the building and moved easily Become.

  Conventionally, as a simple scaffold that is easy to assemble and dismantle, one using a pair of sliding double ladders has been proposed. This simple scaffold is formed by connecting a pair of sliding double ladders from both sides with braces. The structure is such that it is placed upright facing each other at a predetermined interval, both sides of both sliding double ladders are supported by outriggers as reinforcement, and a scaffolding plate is constructed between the treads of the opposing sliding double ladders Thus, it is possible to climb a slide type two-ladder and place it on the scaffolding board to perform work at a high place, and to set the vertical height position of the scaffolding board at intervals of treads.

  By the way, in the structure where the sliding type two ladders are arranged upright facing each other and the scaffolding plate is installed between the treads, the lifting and lowering surface of the sliding type two ladders and the scaffolding plate are at right angles. Since it will be located inside the up-and-down surface of the type 2 ladder, it is very difficult for the operator to transfer between the slide type 2 ladder and the scaffolding board. It is necessary to lean on the outside in the width direction of the ladder, and it is extremely dangerous to operate with such an unreasonable posture at high altitudes. However, there is a problem that a situation in which the scaffolding board cannot be substantially transferred occurs.

  In addition, in the structure in which both sides of the double sliding ladder are supported by the outrigger, the outrigger becomes an obstacle and the scaffold plate cannot be approached to the wall surface of the building, making it difficult to work on the height of the wall surface. It is extremely dangerous to work in an unreasonable posture with you leaning out of the board.

  Therefore, an object of the present invention is to arrange the two slide-type double ladders in parallel and install a scaffolding plate between them so that the operator can safely move between the slide-type double ladders and the scaffolding plate. It is another object of the present invention to provide a wall-mounting type simple scaffold that can be made close to the wall surface of the building and can contribute to improving the safety of work at a high place.

  In order to solve the above problems, the present invention combines two sliding double ladders and an immovable ladder in two sliding dual ladders arranged in parallel at a predetermined interval, and at the upper end. A stable unit that holds the two sliding double ladders in an upright state at a predetermined inclination angle by grounding the lower end while supporting the stationary ladder, and the upper ends of the movable ladders in the two sliding double ladders Fixed to the wall so that it protrudes in the slanted direction, a scaffolding unit that is attached to the movable ladder of the two slide-type dual ladders using a foot rod, and the scaffolding unit on both sides The structure which consists of a scaffolding board to adopt is adopted.

  The stabilizing unit connects the lower part of the stationary ladder in the two sliding double ladders in a horizontal state with each other and the upper part of the stationary ladder in the two sliding two ladders in a horizontal state. An upper coupling member; a pair of vertical support rods whose lower ends are grounded in a state where the upper ends are coupled to the end portions of the upper coupling member; and a pair of connection rods that couple the end portions of the lower coupling member and the lower portions of the vertical support rods. It can be set as the structure formed by.

  In addition, the scaffolding unit includes a pair of horizontal support rods provided at the lower end with a locking tool that is fitted from above onto the ladder of the movable ladder, and a locking tool that is fitted at the upper end to the ladder of the movable ladder from above. A pair of suspension rods, the lower ends of which are coupled to the rear ends of the horizontal support rods, with the scaffolding units attached to the movable ladders of the two sliding double ladders, It is possible to adopt a structure in which a scaffolding plate is constructed between horizontal support rods located inside the scaffolding unit.

  Here, the sliding type two-stage ladder is a combination of a movable ladder having a foot rod provided between the vertical saddles at regular intervals and a movable ladder so that the movable ladder can be slid up and down. The vertical height dimension can be changed by locking with.

  The scaffolding unit is formed so as to lock the upper end locking device of the hanging rod to, for example, the upper step rod of the hanging rod with respect to the walking rod locking the locking device of the horizontal support rod. The upper and lower mounting height positions can be selected at the treadle interval.

  According to the present invention, two slide-type double ladders are arranged in parallel, and a scaffolding plate is installed between them, so that the vertical direction of the slide-type double ladder and the length direction of the scaffolding plate are parallel to each other. When transferring workers between the ladder and the scaffolding board, there is no need to get out of the slide-type two-ladder, and there are no obstacles to the transfer. Therefore, the slide-type two-ladder and the scaffold Operators can move safely between the boards, contributing to improved safety at work in high places.

  In addition, since the slide type double ladder placed in parallel is leaned against the wall and the scaffolding plate is installed between the two slide type double ladders, the scaffolding plate can be put on the wall just by leaning the slide type double ladder against the wall. Since the arrangement can be made close, and the work can be performed without taking an unreasonable posture with the scaffolding plate, the safety of the work on the height of the wall surface can be improved.

  Hereinafter, embodiments of the present invention will be described based on illustrated examples.

  As shown in FIG. 1, a wall-mounted simple scaffold A uses two sliding double ladders 1 and two sliding double ladders 1 arranged in parallel at a predetermined interval at a predetermined inclination angle. A stable unit 2 held in an upright state, a horizontal wall 3 fixed so as to protrude in an inclined direction at the upper end of the two sliding double ladders 1, and the two sliding double ladders 1 The scaffolding unit 4 is attached to each of the scaffolding units using the treads, and the scaffolding plate 5 is installed on the scaffolding unit 4 on both sides.

  As is well known, the sliding double ladder 1 includes a stationary ladder 9 in which a foot rod 8 is provided at regular intervals between both sides of a vertical rod 7 having a grounding member 6 attached to the lower end at a variable angle. A movable ladder 12 provided with treads 11 at regular intervals in between is combined so that it can be slid up and down. As shown in FIG. 4, the movable ladder 12 is moved to the lower part of the movable ladder 12 by the vertical movement of the movable ladder 12. A locking bracket 13 that can be engaged and released in the downward direction is attached to the treadle 8 and is not shown, but it is movable by pulling a wire wound around a pulley provided on the stationary ladder 9 and the movable ladder 12. The ladder 12 is moved up and down, and the movable ladder 12 is locked at the distance of the treadle 8 of the stationary ladder 9 so that the vertical height can be changed.

  As shown in FIGS. 1 to 6, the stabilizing unit 2 includes a lower coupling member 14 that couples the lower portions of the stationary ladder 9 in the two sliding double ladders 1 in a horizontal state, and two sliding double stations. An upper coupling member 15 that couples the upper portions of the stationary ladder 9 in the ladder 1 in a horizontal state with each other, a pair of vertical support rods 16 that have their upper ends coupled to the ends of the upper coupling member 15 and grounding the lower ends, and the lower coupling It is formed by a pair of connecting rods 17 that join the end of the member 14 and the lower portion of the vertical supporting rod 16.

  The lower coupling member 14 uses a long square pipe made of aluminum or the like disposed in a horizontal state on the lower front surface of the stationary ladder 9 between the two sliding double ladders 1, and is a portion that intersects the vertical ladder 7 of the stationary ladder 9. Is fixed to the vertical rod 7 by a holding bracket 18 fixed to the lower front side of the vertical rod 7 with a bolt, and the upper coupling member 15 is also connected to the upper front surface of the stationary ladder 9 between the two sliding double ladders 1. Using a long square pipe made of aluminum or the like that is placed horizontally, the portion of the stationary ladder 9 that intersects the vertical rod 7 is fixed to the vertical rod 7 by a holding bracket 19 fixed to the upper front side of the vertical rod 7 with a bolt. Has been.

  The connecting rod 17 uses a square pipe and is disposed horizontally on the outside of the two sliding double ladders 1 so as to extend rearward at a right angle to the lower coupling member 14, and its tip is the end of the lower coupling member 14. It overlaps with the upper surface, and this overlapped part is connected with a bolt and a nut 20.

  The vertical support rods 16 are square pipes, arranged at both ends of the lower coupling member 14, a large-diameter lower pipe 22 with a grounding member 21 attached to the lower end, and a small-diameter upper portion inserted into the lower pipe 22 from the upper end. A long hole 24 in the vertical length direction is provided on both side surfaces of the large-diameter lower pipe 22, and a lower end portion of the small-diameter upper pipe 23 is coupled to a bolt and a nut 25 penetrating the long hole 24. Thus, the length can be adjusted in the range of the long hole 24.

  As shown in FIG. 5, the vertical support rod 16 has a large-diameter lower pipe 22 whose lower end is grounded overlapped on the outer surface of the rear end portion of the connection rod 17. Further, as shown in FIG. 6, the upper end of the small-diameter upper pipe 23 is overlapped with the rear surface of the end of the upper connecting member 15, and this overlapping portion is connected with a bolt and a nut 27, thereby Is held in a standing state at an inclination angle of 75 °, for example.

  As shown in FIG. 9, the above-mentioned 3 per wall uses a square pipe having a length of about 300 mm, and on the rear surface of the upper end portion of the vertical vertical shaft 10 on both sides of the movable ladder 12 in the sliding double ladder 1, A plurality of bolts and nuts 29 are used to fix the slidable double ladder 1 so as to protrude horizontally rearward, and a trochanter 30 that abuts against the wall B is pivotally supported at the tip thereof.

  As shown in FIGS. 7 and 8, the scaffolding unit 4 is provided with a locking tool 32 that locks against the tread bar 11 at the tip of a pair of horizontal support bars 31 using square pipes. A locking tool 35 that locks the treadle 11 is provided at the upper end of a hanging rod 34 that passes through the lower end at the rear end of 31 and is coupled by a bolt and a nut 33.

  The locking members 32 and 35 are made of a channel material that is externally fitted to the tread bar 11, and the locking members 32 are coupled and fixed with bolts and nuts with the upper surfaces of both ends overlapped with the lower surface of the front end of the horizontal support rod 31. The locking device 35 has its rear surfaces at both ends overlapped with the upper front surface of the hanging rod 34 and fixed with bolts and nuts, and an anti-slip plate 36 made of hard rubber on the inner upper surface mounted on the tread rod 11, A steady rest 37 for adapting to the width of the treadle 11 is provided.

  The scaffolding unit 4 is formed so that the lengths of the locking tools 32 and 35 and the arrangement widths of the horizontal support rods 31 and the suspension rods 34 are accommodated between the vertical rods 10 on both sides of the movable ladder 12. The upper end locking member 35 of the hanging rod 34 is formed so as to be locked to, for example, the upper step rod 11 in the inclined state of the hanging rod 34 with respect to the foot rod 11 that has locked the other locking device 32. Thus, the upper and lower mounting height positions can be selected at intervals of the foot rod 11 of the movable ladder 12.

  The wall-mounted simple scaffold of the present invention is configured as described above, and the two sliding double ladders 1, the stabilization unit 2, the per-wall 3, the scaffolding unit 4, and the scaffold plate 5 are disassembled. Transported or stored in state.

  In order to assemble the wall-mounted simple scaffolding A at the work site, first, three per wall are fixed to the upper ends of the movable ladders 12 in the two sliding double ladders 1, and the two stands upright as shown in FIG. The sliding type two-ladder 1 is contracted and arranged in parallel on both sides, and the lower part of the stationary ladder 9 is connected to each other by the stabilizing unit 2 so that both sliding-type two-ladders 1 stand upright at a predetermined inclination angle. Hold on.

  The stability unit 2 has a vertical support rod 16 having a lower end portion coupled to the lower coupling member 14 and an upper coupling member 15 at the lower end portion of the both-side stationary ladder 9 and an upper end coupled to the end portion of the upper coupling member 15 at a lower end. Are connected to each other, and the rear end of the connecting rod 17 whose tip is coupled to the lower coupling member 14 and the lower portion of the vertical support rod 16 are coupled, so that the two sliding double ladders 1 arranged in parallel stand up at a predetermined inclination angle. Can be held.

  In the state described above, the scaffolding unit 4 is mounted on the upper side of the movable ladder 12 in the two-sliding dual ladder 1 using the saddle 11 so as to be opposed to each other, and located on the inner sides of the both-side scaffolding unit 4. If the scaffolding plate 5 is installed between the horizontal support rods 31 with hooks, the assembly of the wall-mounted simple scaffolding A is completed as shown in FIG.

  As shown in FIGS. 1 and 2, the wall-mounted simple scaffold A assembled as described above climbs the sliding double ladder 1 in a state where the tip of 3 per wall is in contact with the wall B, and is on the scaffold plate 5. The wall-mounted simple scaffolding A can be placed on the wall B, and the upper ends of the two slidable double ladders 1 abutted against the wall B at 3 per wall. Since the lower end is grounded, and the lower end of the vertical support rod 16 having the upper end coupled to the middle of the stationary ladder 9 is grounded, the sliding double ladder 1 held upright at a predetermined inclination angle Surface stability is reliably maintained.

  In addition, the wall-mounted simple scaffold A has two sliding double ladders 1 arranged in parallel, and both stationary ladders 9 are connected to each other by a stable unit 2. The anti-vibration strength in the width direction is greatly improved, and the safety of work on the sliding plate 2 and the scaffolding plate 5 is improved.

  In this wall-mounted simple scaffold A, two sliding double ladders 1 are arranged in parallel, and a scaffolding plate 5 is installed on the rear side between them. 5 are parallel to each other, and when the operator moves between the sliding double ladder 1 and the scaffolding board 5, there is no need to lean out from the sliding double ladder 1 and the stable posture. In addition, there is no obstacle to the transfer between the sliding double ladder 1 and the scaffold plate 5, and the transfer operation of the worker can be performed safely.

  Further, since the scaffolding plate 5 is installed between the two sliding-type duplex ladders 1 on the rear side of the sliding-type duplex ladder 1, the scaffolding plate 5 is placed on the wall B by leaning the sliding-type duplex ladder 1 against the wall B. Since the arrangement can be made close, and the work can be performed without taking an unreasonable posture on the scaffolding plate 5, the safety of the work for the height of the wall B can be improved.

  The above-described wall-mounted simple scaffold A can change the height position of the scaffolding plate 5 according to the height of the work position by extending and contracting both the slide-type double ladders 1, FIG. FIG. 10B shows a state where the sliding type two-ladder 1 is most contracted, FIG. 10B shows a state where the sliding type two ladders 1 are extended a little, FIG. 10C shows a state where the sliding type two ladders 1 are extended most. Since the inclination angle of the continuous ladder 1 and the length of 3 per wall are constant, the distance a from the wall B to the ground contact point of the sliding double ladder 1 may be separated in proportion to the extension.

  Further, the height b of the scaffold plate 5 rises and falls in proportion to the extension as shown in each figure of FIG. 10, but the distance c between the wall B and the scaffold plate 5 is kept constant. It is possible to ensure the safety of work for the high place of B.

  The used wall-mounted simple scaffolding A contracts both sliding double ladders 1, two sliding double ladders 1, a stability unit 2, 3 per wall, and a scaffolding unit 4. The scaffold plate 5 may be disassembled and carried out in the reverse order of assembly.

Perspective view of the assembled state of the wall-mounted simple scaffolding Longitudinal side view of the assembled state of the wall-mounted simple scaffolding Longitudinal front view of the assembled state of the wall-mounted simple scaffolding Enlarged vertical side view showing the stable unit part of the wall-mounted simple scaffolding Enlarged vertical front view showing the lower structure of the stable unit of the wall-mounted simple scaffolding (A) is an enlarged vertical front view showing an upper structure of a stable unit of a wall-mounted simple scaffolding, and (b) is a side view of the same. Enlarged front view showing the scaffolding unit of the wall-mounted simple scaffolding Vertical side view along arrow VIII-VIII in FIG. (A) is an enlarged vertical front view showing the per-wall area of a wall-mounted simple scaffold, (b) is a cross-sectional plan view of the same. (A) thru | or (c) is a side view which shows the state from which the vertical expansion-contraction height differs of a wall hanging type simple scaffold.

Explanation of symbols

A Wall-mounted simple scaffolding 1 Sliding double ladder 2 Stabilization unit 3 Per wall 4 Scaffolding unit 5 Scaffolding plate 6 Grounding member 7 Shaft 8 Saddle 9 Fixed ladder 10 Saddle 11 Shoe 12 Movable ladder 13 Locking bracket 14 Lower coupling member 15 Upper coupling member 16 Vertical support rod 17 Connection rod 18 Holding bracket 19 Holding bracket 20 Bolt and nut 21 Grounding member 22 Large diameter lower pipe 23 Small diameter upper pipe 24 Long hole 25 Bolt and nut 26 Bolt and nut 27 Bolts and nuts 28 Contact plates 29 Bolts and nuts 30 Trochanters 31 Horizontal support rods 32 Locking tools 33 Through bolts and nuts 34 Suspension rods 35 Locking tools 36 Non-slip plates 37 Stabilization plates

Claims (3)

  The two sliding double ladders and the stationary ladders of the two sliding dual ladders arranged in parallel at a predetermined interval are coupled to each other, and the lower end is grounded while the stationary ladder is supported at the upper end. And a stable unit for holding the two sliding double ladders upright at a predetermined inclination angle, and fixing the upper end of the movable ladder in the two sliding double ladders so as to protrude in the inclination direction. A wall-mounted simple scaffolding consisting of an attached wall, a scaffolding unit that is attached to the movable ladder of the two sliding double ladders using a foot rod, and a scaffolding plate that is built on the scaffolding units on both sides.   The stabilizing unit connects the lower part of the stationary ladder in the two sliding double ladders in a horizontal state with each other and the upper part of the stationary ladder in the two sliding two ladders in a horizontal state. An upper coupling member; a pair of vertical support rods whose lower ends are grounded in a state where the upper ends are coupled to the end portions of the upper coupling member; and a pair of connection rods that couple the end portions of the lower coupling member and the lower portions of the vertical support rods. The wall-mounted simple scaffold according to claim 1, wherein   The above-mentioned scaffolding unit is provided with a pair of horizontal support rods provided at the lower end with a locking tool that fits into the ladder of the movable ladder from above, and a locking tool that fits into the ladder ladder of the movable ladder from above at the upper end. A pair of suspension rods whose lower ends are coupled to the rear ends of the horizontal support rods, with the scaffolding units attached to the movable ladders of the two sliding-type dual ladders, The wall-mounted simple scaffold according to claim 1, wherein a scaffolding plate is constructed between horizontal support rods located inside the units.

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