JP6031295B2 - Scaffolding trolley and work stage - Google Patents

Description

  The present invention relates to a scaffolding carriage and a work stage formed by connecting a plurality of scaffolding carriages in the horizontal direction.

  Conventionally, in order to carry out work such as interior and exterior construction, a scaffolding trolley equipped with a work floor with a variable height at the top and movable in the horizontal direction has been used. Then, after moving a plurality of scaffolding trolleys horizontally to a predetermined location and connecting and fixing them horizontally at that location, the working floors of each scaffolding trolley are stretched and fixed to a predetermined height to be flush with each other. The work stage has also been formed. Work such as interior and exterior work can be performed at a predetermined height at a predetermined location. The work stage thus formed can be used not only as a scaffold for interior and exterior construction of buildings, but also as a stage for indoor and outdoor events.

  In addition, this work stage not only directly connects a plurality of scaffolding carts, but also couples a plurality of scaffolding carts via a scaffolding plate or a coupling plate. As a result, it is possible to form a work stage having a work floor with a larger work area.

  Such horizontal movement and fixing of the scaffolding trolley is usually performed by providing a wheel with a brake lock on the ground contact surface of the scaffolding trolley. The vertical expansion and contraction is often performed by installing a work floor on a foldable X-shaped pantograph and extending and fixing the pantograph up and down.

  Patent Document 1 discloses a scaffolding carriage in which one work floor is installed via a pantograph on a rectangular base frame (frame) having wheels with brake locks on a ground contact surface. . The pantograph can be expanded and contracted. The pantograph can be moved up and down manually by manually extending and lowering the pantograph, and the height of the work floor is fixed stepwise by a grooved lifting stopper. It is possible. Here, it is also disclosed that a work stage having a work floor having a wide work area can be formed by connecting a plurality of scaffold carts between the scaffold carts via a scaffold plate or a coupling plate.

  Further, in Patent Document 2, a plurality of scaffolding carts that can be horizontally moved to a predetermined location, fixed at that location, and then extended to a predetermined height to fix the height of the scaffolding cart directly. Alternatively, it is also disclosed that a work stage having a work floor with a wide work area can be formed by connecting via a cloth board.

JP-A-4-64663 JP 2010-37769 A

  The scaffold carts described in the cited documents 1 and 2 form a flush work stage by connecting the plurality of platforms directly or through cloth plates (scaffold plates) or connecting plates in the horizontal direction. Can do.

  As described above, the work stage formed in this way is not only used for scaffolding for interior and exterior construction of buildings, but also a work table for unloading from stage for indoor and outdoor events and cargo vehicles. Also used as

  Therefore, if the height level of the work stage formed from the scaffolding carts described in the above cited references 1 and 2 is matched to the height level of the cargo vehicle bed, the work stage and the cargo vehicle bed will be flush with each other. Employees can safely and smoothly transfer and unload from the cargo vehicle platform next to the work stage.

  However, since the height from the road surface of the freight vehicle to the loading platform varies depending on the vehicle, in order to make the work stage and the loading platform of the freight vehicle flush with each other, this scaffolding is required each time a freight vehicle with a different loading platform height arrives. An operation is required in which the height level of the work stage formed from the carriage is matched with the height level of the loading platform of the freight vehicle. In addition, when finishing overhead work or when the overhead height changes due to beams etc., the height of the part of the work floor of the work stage is set to the optimum work level so that an unreasonable work posture is not forced. It is necessary to work together.

  However, in order to raise and lower the work floor of the work stage with the work floors of a plurality of scaffolding carts connected, it is necessary to incorporate an expensive interlocking device or to manually operate a plurality of workers simultaneously. However, manual operation may be difficult depending on the shape and work area of the work stage.

  And even if it is possible to raise and lower the work floor by manual operation by one worker, every time the elevator is raised or lowered, once remove the scaffolding boards etc. spanned between the work floors, After the lifting / lowering operation of the work floor is completed, it takes time and labor to re-mount the scaffolding plate between the work floors.

  An object of the present invention is to solve such a problem, and the work floor can be easily moved up and down according to the work situation, and the work is provided with a plurality of work floors having different height levels. To provide a scaffolding trolley capable of forming a stage and a work stage formed by connecting a plurality of the scaffolding trolleys in the horizontal direction.

The present inventors develop a scaffolding carriage and a work stage that allow workers to smoothly transfer from and to the work stage of the freight vehicle even when a freight vehicle with a different loading platform arrives. Therefore, various studies were repeated. As a result, the following findings (a) to (f) were obtained.
(a) In order to raise and lower the entire work floor of the work stage with multiple scaffolding carts connected each time a freight vehicle with a different loading platform arrives, incorporate an expensive interlocking device. Alternatively, it is necessary for a plurality of workers to perform manual operations simultaneously. However, none of these are cost-effective. In addition, manual operation itself may be difficult depending on the shape and work area of the work stage.

  (b) The work stage formed from the conventional scaffolding trolley was intended to ensure a large area with the work floor flush. However, if it is possible to form multiple levels of work floors regardless of the level of the work floor, the height of the multiple work floors can be adjusted to the height level of each cargo bed of the freight vehicle that will arrive. Since the level can be selected, the idea is that it is not necessary to raise and lower the entire work floor of the work stage at the same time each time a freight vehicle with a different loading platform arrives. Further, even if a cargo vehicle with a loading platform of an unexpected height level arrives, only the height level of a part of the work floor of the work stage may be matched with the height level of the loading platform of the cargo vehicle. In this way, even if a cargo vehicle with a different loading platform arrives, a part of the work floor and the loading platform of the cargo vehicle are always flush with each other. It is possible to transfer smoothly from the loading platform and unload it.

  (c) Then, in order to form a work stage having a plurality of work floor height levels, the work floor height level is not variable for each scaffolding carriage forming the work stage, but one platform. It turned out that it is better to make the height level of the work floor variable in the trolley.

  This is because if the height level of the work floor is variable for each scaffolding truck, when the worker moves between the work floors after the work stage is formed, it moves between the scaffolding trucks. Regardless of whether the connection is direct or via cloth plates or connection plates, when workers move between different scaffolding carts, the work speed will decrease to ensure stability and safety. Become. In particular, it will be difficult to move between work floors of different height levels.

  On the other hand, if the height level of the work floor is variable in one scaffolding carriage, the worker moves within the same scaffolding carriage, so that the working speed does not decrease. In addition, even when moving between work floors with different height levels, workers move on a work floor installed in a staircase in one scaffolding cart, so that workers can work stably and safely. It can be easily moved between floors.

  (d) In order to make the work floor height level variable in one scaffolding cart, each telescopic member is placed on a base consisting of one frame and wheels on its grounding surface. It is sufficient to use a scaffolding trolley equipped with a plurality of work floors whose heights can be adjusted independently through the horizontal direction. Although it does not specifically limit as an elastic member, It is preferable to use an X-shaped pantograph. When this pantograph is erected vertically on both edges of the frame and a work floor is installed thereon, one work floor having a variable height level is formed. In order to fix the X-shaped pantograph at a predetermined height after expansion and contraction, for example, a grooved lifting stopper can be used. Then, a work floor having a variable height level may be separately installed adjacent to the work floor having a variable height level. The number of work floors having a variable height level installed in one scaffolding truck may be two or more, and there is no particular limitation on the upper limit. However, if the number is too large, the workability deteriorates. It is preferable to use up to about one.

  Further, although the shape of the frame is not particularly limited, it is preferable that the frame has an area that allows the installation of a plurality of work floors having a rectangular upper surface and a variable height level. The wheel provided on the ground contact surface of the frame is to move the scaffolding cart horizontally to a predetermined location. After the movement, the wheel with a brake lock is used so that the scaffolding cart can be fixed at that location. Is preferred. In addition to the wheel with a brake lock, it is more preferable to fix with an outrigger.

  A removable handrail can be attached to each work floor to ensure the safety of workers.

  (e) Next, by connecting a plurality of scaffolding carts in the horizontal direction, a work stage having a large work area is formed. A plurality of scaffolding trolleys may be moved to the work stage installation location and connected to the work stage to form a work stage, or a work stage formed by connecting in advance at a different location may be predetermined. It may be moved to the installation location.

  As a means for connecting a plurality of scaffolding trolleys in the horizontal direction, a frame between adjacent scaffolding trolleys may be connected by a connecting member. At this time, the scaffolding trolley may connect the edge portions (long sides) of the frame bodies or may connect the end portions (short sides) of the frame bodies. As means for connecting a plurality of scaffolding trolleys in the horizontal direction, edges (long sides) of work floors of adjacent scaffolding trolleys may be connected, or ends (short sides) may be connected. Good. At this time, when connecting a plurality of scaffolding trolleys, the scaffolding trolleys may be directly connected or may be connected via a connecting member. An example of the connecting member is a cloth board. When using a cloth board as a connecting member, by gripping the grip fittings attached to both ends of the cloth board to each of the pipes constituting the long side or the short side of the work floor of the adjacent scaffolding cart, It is preferable to connect the long sides and / or the short sides of the work floors of adjacent scaffolding carts with a cloth board. Alternatively, the long side or the short side opposite ends of the work floor of the adjacent scaffolding trolley are connected by connecting pipes, respectively, and each of these connecting pipes can hold the gripping fittings attached to both ends of the cloth board. By this, you may install a cloth board between the work floors of an adjacent scaffolding trolley | bogie.

  As the cloth board at this time, a cloth board (also referred to as a cloth frame with a floor) known as a scaffold board such as a temporary scaffold can be used. Although a cloth plate known as a scaffold plate such as a temporary scaffold may be used as it is, it may be created according to the length of the long side or the short side of the work floor of this coupled scaffolding cart. As for the width of a cloth plate known as a scaffold plate such as a temporary scaffold, two types of widths of 240 mm and 500 mm are usually used. They are called small anti (also referred to as small cloth board) and large anti (also referred to as large cloth board), respectively. It is preferable to use one or two or more of these cloth boards in parallel. In addition, it is preferable to emboss the surface of the scaffolding plate so that workers do not slip while passing or working.

  (f) In addition, the work stage formed in this way can install handrails in the four sides of the work table that combines the work floor and the cloth board, including the case where the cloth board is interposed between the work floors. Therefore, it is possible to prevent the worker from falling from the work table.

  The scaffolding trolley according to the present invention has been completed based on these findings, and the present invention is summarized as the following (1) to (3) scaffolding trolley and the following (4) to (9) work stages. And

(1) one frame and a base on which the consisting wheels provided on the ground plane, on the scaffold bogie formed by installing a working floor independently of one another via the respective elastic members in the plurality horizontally The scaffold is characterized in that these work floors are supported only at the lower side and are adjustable in height independently of each other.

  (2) The scaffolding cart according to (1) above, wherein the elastic member is an X-shaped pantograph.

  (3) The scaffold cart according to (1) or (2) above, wherein a handrail is attached to the work floor.

  (4) A work stage formed by connecting a plurality of scaffolding carts according to any one of (1) to (3) in the horizontal direction.

  (5) The work stage according to (4), wherein the bases of adjacent scaffolding carts are connected by a connecting member.

  (6) The work stage according to (4) or (5) above, wherein the long sides and / or short sides of the work floors of adjacent scaffolding carts face each other directly or through a cloth board.

  (7) The length of the work floor of the adjacent scaffolding trolley is obtained by gripping the grip fittings attached to both ends of the cloth board to each of the pipes constituting the long side or the short side facing each other of the work floor of the adjacent scaffolding trolley. The work stage according to any one of (4) to (6) above, wherein the sides and / or the short sides are connected by a cloth board.

  (8) Connect the long side or short side opposite ends of the work floor of the adjacent scaffolding trolley with connecting pipes, respectively, and grab the grip fittings attached to the both ends of the cloth board to each of these connecting pipes. The work stage according to any one of (4) to (6) above, wherein a cloth board is installed between the work floors of adjacent scaffolding carts.

  (9) The work stage according to any one of (4) to (8) above, wherein a handrail is installed on at least a part of the four sides of the work table including the work floor and the cloth board.

  According to the scaffold cart according to the present invention, the work floor can be easily raised and lowered according to the work situation, and a work stage having a plurality of work floors having different height levels can be formed. Therefore, even if a freight vehicle with a different loading platform height arrives at the work stage according to the present invention, the worker can smoothly move the work stage from the loading platform of the freight vehicle by moving a part of the work floor of the work stage up and down. You can move up and unload.

It is an example of the scaffolding trolley | bogie which concerns on this invention, and is equipped with the work floor on right and left. The left work floor shows a state where the X-type pantograph is contracted, and the right work floor shows a state where the X-type pantograph is extended. It is an example of the work stage which concerns on this invention, and is formed by connecting two scaffolding trolleys provided with two work floors of variable height via cloth boards. FIG. 3 is another example of the work stage according to the present invention, which is formed by connecting two scaffold carts each having three work floors with variable heights.

  Hereinafter, a scaffold cart and a work stage according to the present invention will be described with reference to the drawings. In addition, this invention is not limited to a following example.

  FIG. 1 is an example of a scaffolding trolley according to the present invention, and includes work floors on the left and right. The left work floor shows a state where the X-type pantograph is contracted, and the right work floor shows a state where the X-type pantograph is extended. (a) is a plan view, (b) is a front view, and (c) is a right side view in which a handrail is omitted.

  This scaffolding cart is a work whose height can be adjusted independently via a base made up of a frame 5 and wheels 6 with brake locks provided on the ground contact surface, and an X-shaped pantograph 50 on the base. Two of the floors 60 are provided in the horizontal direction. The frame 5 has a rectangular top surface, and a building frame is constructed in which two columns 7 and a connecting material are integrated by welding at both ends of the two edges and at the center of the two edges. The frames are connected by crossing lines, and a wheel 6 with a brake lock is attached to the lower end of the column 7 of the building frame. In addition, an outrigger 76 having a jack base 75 at the tip is attached to the side surface of the support 7 at the four corners, and is installed so as to be able to rotate in the horizontal direction around each support 7. Between the frame body 5 and the work floor 60, X-shaped pantographs 50 formed by intersecting and axially mounting two diagonal members are vertically provided on both edges of the frame body 50. The left work floor is in a state in which the X-type pantograph 50 is contracted, and the right work floor is in a state in which the X-type pantograph 50 is extended, both of which are fixed by a grooved lifting stopper 51. . In addition, handrail pillars 62 are erected at the four corners of each work floor 60, and handrail bars 63 are attached between the handrail pillars 62.

  In this way, since the scaffolding cart is assembled by connecting a plurality of members, when the scaffolding cart is not used, it can be transported and stored separately for each member, and even when the member is damaged, the minimum number of members Can only be exchanged.

  Moreover, although the example of what connected the building frame by the crossing reinforcement was given for the shape of the frame, it is not limited to this, What connected the support | pillar and the connection material with the wedge metal etc. may be used.

  FIG. 2 shows an example of a work stage according to the present invention, which is formed by connecting two scaffolding carriages each having two work floors with variable heights via cloth plates. (a) is a top view, (b) is a front view, and (c) is a right side view in which a handrail is omitted.

  This scaffolding cart is the one shown in the first embodiment, and includes a base composed of one frame 5 and wheels 6 with brake locks provided on the ground contact surface, and an X-shaped pantograph 50 on the base. Two work floors 60 that are independently adjustable in height are provided in the horizontal direction. The frame body 5 has a rectangular upper surface, and columns 7 are erected at both end portions of the two edges and at the center portions of the two edges, and wheels 6 with brake locks are attached to the lower end portions thereof. Yes. In addition, an outrigger 76 having a jack base 75 at the tip is attached to the side surface of the support 7 at the four corners, and is installed so as to be able to rotate in the horizontal direction around each support 7. Between the frame body 5 and the work floor 60, X-shaped pantographs 50 formed by intersecting and axially mounting two diagonal members are vertically provided on both edges of the frame body 50. The left work floor is in a state in which the X-type pantograph 50 is contracted, and the right work floor is in a state in which the X-type pantograph 50 is extended, both of which are fixed by a grooved lifting stopper 51. .

  Here, the work stage is formed by connecting the two scaffolding carts via the cloth plate 85 at the edge (long side) of the frame 5 of the scaffolding cart. Here, the cloth plate 85 is attached by gripping the gripping metal fittings 86 attached to both ends of the cloth plate 85 to each of the pipe members constituting the long sides facing the work floor of the adjacent scaffolding carriage. In addition, handrail pillars 62 are erected at the four corners of each work floor 60, and handrail bars 63 are attached between the handrail pillars 62.

  In this manner, a work stage having work floors with different height levels can be formed.

  FIG. 3 is another example of the work stage according to the present invention, which is formed by connecting two scaffold carts each having three work floors with variable heights. (a) is a top view, (b) is a front view, and (c) is a right side view. In addition, the fine number in drawing shows the dimension (unit: mm) of an installation.

  This scaffolding cart is a work whose height can be adjusted independently via a base made up of a frame 5 and wheels 6 with brake locks provided on the ground contact surface, and an X-shaped pantograph 50 on the base. Three of the floors 60 are provided in the horizontal direction. The frame 5 has a rectangular upper surface, and both ends of the two edges and a column 7 are erected in a place where the two edges are equally divided, and a wheel 6 with a brake lock is attached to the lower end of the frame 5. Yes.

  Here, the two scaffolding carts are connected by the connecting member 81 at the end (short side) of the frame 5 of the scaffolding cart, and the ends (short sides) of the work floor 60 of the scaffolding cart are also connected to each other. Are connected via the cloth board 85, so that a long work stage having a length corresponding to six work floors is formed. At both ends of the work stage, stairs 91 that can be moved up and down from the ground to the work floor 60 are installed.

  In both the left and right scaffolding carts, an X-shaped pantograph 50 formed by crossing and attaching two diagonal members to each other between the frame 5 and each work floor 60 stands vertically on both edges of the frame 5. It is installed. In the left scaffolding cart, the X-type pantograph 50 under the left and center work floors 60 is slightly contracted, and the X-type pantograph 50 under the right work floor 60 is stretched. Each is fixed by a groove-shaped lifting stopper 51. In the right scaffolding cart, the X-type pantographs 50 under the three work floors 60 are all stretched, and are all fixed by groove-shaped lifting stoppers 51. In addition, handrail pillars 62 are erected at the four corners of each work floor 60, and handrail bars 63 are attached between the handrail pillars 62.

  The freight vehicle 90 is placed on the work floor 60 having the highest height level. However, since the loading platform of the freight vehicle is flush with the work floor 60 having the highest height level, the worker can use the freight vehicle. It is possible to smoothly transfer from the loading platform onto the work floor 60 of the work stage and unload it.

  According to the scaffold cart according to the present invention, it is possible to form a work stage including a plurality of work floors having different height levels. According to the work stage according to the present invention, even if a cargo vehicle having a different loading platform height arrives, the worker can smoothly lift the cargo floor of the cargo vehicle by moving a part of the work floor of the work stage up and down. You can transfer to the work stage and unload it.

5 Frame 6 Wheel with Brake Lock 7 Strut 50 X-shaped Pantograph 51 Groove Lifting Stopper 51
60 Work Floor 62 Handrail Pillar 63 Handrail Bar 75 Jack Base 76 Outrigger 81 Connecting Member 85 Fabric Board 86 Grab Bracket 90 Cargo Vehicle 91 Staircase

Claims (9)

One frame and a base on which the consisting wheels provided on the ground plane, on which, a scaffold bogie formed by installing a plurality horizontally working floor independently of each other through the respective elastic members The scaffolding cart is characterized in that these work floors are supported only at the bottom and can be adjusted in height independently of each other.   The scaffold cart according to claim 1, wherein the elastic member is an X-shaped pantograph.   The scaffolding trolley according to claim 1 or 2, wherein a handrail is attached to the work floor.   A work stage formed by connecting a plurality of scaffolding carts according to any one of claims 1 to 3 in a horizontal direction.   The work stage according to claim 4, wherein the bases of adjacent scaffolding carts are connected by a connecting member.   6. The work stage according to claim 4, wherein the long sides and / or the short sides of the work floors of adjacent scaffolding carts face each other directly or through a cloth board.   By grasping the grip fittings attached to both ends of the cloth plate to the pipe materials constituting the long side or the short side facing each other of the work floor of the adjacent scaffolding cart, the long sides of the work floors of the adjacent scaffolding carts and The work stage according to any one of claims 4 to 6, wherein short sides are connected by a cloth board.   By connecting the long side or the short side opposite ends of the work floor of the adjacent scaffolding trolley with connecting pipes, and gripping the fittings attached to both ends of the cloth board to each of these connecting pipes. The work stage according to any one of claims 4 to 6, wherein a cloth plate is installed between work floors of adjacent scaffolding carts.   The work stage according to any one of claims 4 to 8, wherein a handrail is installed on at least a part of the four sides of the work table including the work floor and the cloth board.

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