JP3035144U - Folding scaffolding - Google Patents

Abstract

(57) [Abstract] An object of the present invention is to provide a large space under a scaffold plate of a folding scaffold so that it can be installed over an obstacle to save labor and reduce cost. SOLUTION: The center of the scaffolding plate is folded in two and connected so that the upper surfaces thereof can come into contact with each other, and this connecting part is provided with a fixing means for making it unfoldable at the time of use. Further, with respect to the rotatable legs on the back surfaces of both longitudinal ends of the scaffolding plate, the leg is supported by an extendable stay for holding the leg at a right angle to the scaffolding plate. It is rotatably attached to the back surface, and the other end is detachably provided at any of a plurality of connecting positions in the vertical direction of the leg, the leg is further extendable and retractable, and a caster is provided at the lower end of the leg.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a folding scaffold that can be used for interior work and other work and can be folded compactly.

[0002]

[Prior art]

 Conventionally, there have been various foldable scaffolds and work floors used for interior work. For example, utility model registration No. 3026083 and the like can be cited as conventional examples.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional example, the stay supporting the retractable legs is too large, and the space under the work floor is small. In addition, many of the other conventional ones used frames or the like on multiple legs under the work floor, and there was little space under the work floor. Therefore, when performing interior work, it is difficult to install a work floor or scaffolding across a desk, chair, or other obstacles that are scattered on the ground or floor, and work must be performed after removing these obstacles. The floor and scaffolding had to be installed, and there was a problem that it took time.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is provided with fixing means for folding the center of the scaffold plate in two and connecting the upper surfaces so as to be able to contact with each other, and making the connection portion unfoldable at the time of use. In addition, with respect to the rotatable legs on the backs of both longitudinal ends of the scaffolding plate, this leg is supported by an extendable stay for holding the leg at a right angle to the scaffolding plate. One end of this stay is supported by the scaffolding plate. It is rotatably attached to the back surface of the leg, and the other end is detachably attached to one of a plurality of connecting positions in the vertical direction of the leg, the leg is extendable and retractable, and a caster is provided at the lower end of the leg. In this way, a large space can be provided under the scaffolding plate, the scaffolding can be installed over an obstacle, and labor saving and cost reduction can be achieved.

[0005]

[Embodiment of the invention]

 The folding scaffold according to the present invention has a rectangular scaffold plate, which is folded in two at the center in the longitudinal direction and is connected so that its upper surface can abut, and this connecting part has a fixing means for making it unfoldable at the time of use. The upper ends of the legs are rotatably supported on the backs of the longitudinal end portions of the scaffolding plate, and one end of an extendable stay for holding the leg and the scaffolding plate at a right angle is attached. The stay is rotatably attached to the back side of the scaffolding plate, and the other end of the stay is detachably attached to the connecting portion of the legs. Further, it is preferable that the other end of the stay is detachably provided at a plurality of connecting positions in the vertical direction of the leg. Further, it is preferable that the legs can be expanded and contracted and casters are provided at the lower ends of the legs.

[0006] When using the scaffolding board, the scaffolding board is spread over one surface, the central connecting portion of the scaffolding board is non-foldably fixed by the fixing means, and the legs and the scaffolding board are held at right angles by the stays. The length of the stay is adjusted, and the other end of the stay is connected by selecting one of the connecting positions at a plurality of vertical positions of the leg. When the stay is connected to the connection point near the upper part of the leg, the space underneath can be made larger, and when the stay is connected to the connection point near the lower part of the leg, the leg and the scaffolding plate can be held more stably. . When working in high places, the legs can be extended and the scaffolding plate height can be set higher.

Further, when folding after use, the legs are contracted to the minimum, the other end of the stay is removed from the legs, the fixing means of the central connecting portion of the scaffolding plate is released, and the scaffolding plate is folded in two to form an upper surface. Abut. At this time, the scaffolding plate rotates with respect to the legs so that the legs can be folded compactly with a narrow space.

Further, the folded scaffold allows the caster to be easily moved in the folded state.

[0009]

【Example】

 1 is a front view showing a normal use state of an embodiment of a folding scaffold of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view of the same. FIG. 4 is a front view showing a state in which the scaffold plate is also lifted high, FIG. 5 is a front view showing a state in the middle of folding, and FIG. 6 is an enlarged front view showing a state in which the scaffold plate is also folded.

The folding scaffolding (1) is formed by folding the longitudinal center of the rectangular scaffolding plate (2) into two and connecting the hinges (21) so that the upper surfaces can come into contact with each other. As the fixing means, the control plate (22) protruding from the end of one scaffold plate (2a), the bolt (23) screwed to the control plate (22), and the other scaffold plate (2b) are incorporated. Has a nut (not shown) corresponding to the bolt (23) to be rotated, and pivots the upper end (31) of the leg (3) forming a cantilever on the back surface of both ends of the scaffolding plate (2) in the longitudinal direction. The legs (3) and the scaffold plate (2) are connected to each other at a right angle, and one end (41) of an extendable stay (4) for holding the scaffold plate (2) at a right angle is attached to the back surface of the scaffold plate (2). The stay (4) is attached to the leg (3) so that the other end (42) of the stay (4) is detachably attached. I'm done.

The mechanism for making the connecting portion unfoldable by the control plate (22) of the fixing means, the bolt (23) and the nut is such that the scaffolding plates (2a), (2b) change from the state of FIG. 5 to the state of FIG. ), The protruding control plate (22) supports the scaffold plate (2b) from below and guides the scaffold plates (2a) and (2b) to 180 degrees, and the control plate (22) The bolts (23) screwed onto and attached to the scaffolding plate (2b) are screwed into the nuts at the positions corresponding to the bolts (23) and tightened. It is fixed and unfoldable.

The leg (3) is formed by connecting two vertical cantilever bars (32) with a plurality of horizontal bars (33), (34), (35). ), (34), and (35) are connection points between the other end (42) of the stay (4) and the leg (3). The other end (42) of the stay (4) can be attached by selecting an appropriate one of these horizontal bars, and is detachable. The upper end (31) of the leg (3) is the protruding part of the cantilever, and its tip is pivotally supported on the back surface of the scaffolding plate (2). The space between the scaffolding plate (2) and the scaffolding plate (2) is kept at a predetermined level so that various materials in between do not interfere with each other.

When the other end (42) of the stay (4) is connected to the connection point near the upper part of the leg, that is, the uppermost horizontal bar (33), the bottom of the scaffold plate (2) and the stay (4) are connected. Space can be taken up more, and if the stay is connected in stages to the lower part of the leg, that is, to the middle horizontal bar (34) or the lower horizontal bar (35), (3) and the scaffolding plate (2) can be more stably held at a right angle. The three-stage position of the stay (4) is shown in FIG. Bottomed cylinders (5) for handrails are installed at both ends of the scaffolding plate (2) so that the legs (3) and the scaffolding plate (2) do not open at an angle more than a right angle.

The cantilever rod (32) of the leg (3) is composed of an inner and outer double cylinder, a hole is formed in the outer cylinder and a stopper pin (36) is provided, and the inner cylinder is appropriately spaced in the longitudinal direction. By making a plurality of holes with the holes of the outer cylinder and the holes of the inner cylinder and fixing them with the stopper pin (36), it can be fixed at an appropriate length. The length of the rod (32) can be expanded or contracted by removing the stopper pin (36). A caster (37) is provided at the lower end of the inner cylinder and is movable.

Explaining how to fold the folding scaffold (1) from the state of FIG. 1, first, remove the other end (42) of the stay (4) from the horizontal bar (33) of the leg (3), and contract it. The scaffold plate (2). Next, the fixing means at the central position of the scaffolding plate (2) is released, that is, the bolt (23) is removed from the nut in the scaffolding plate (2b) to be foldable, and the scaffolding plate (2a), The position of the hinge (21) is lowered so that the upper faces of (2b) come into contact with each other. At this time, the state of FIG. 5 is reached, and the distance between the legs (3) of both ends becomes narrower. Finally, the state shown in FIG. 6 is obtained.

In the state of FIG. 6, the scaffold (1) is compact and can be easily moved by the casters (37). Even when a large number of folded scaffolds (1) are stacked and stored, space is saved, and space can be saved. It is easy to move and store without the casters.

[0017]

[Effect of the invention]

 The present invention is embodied in the form described above and has the following effects.

[0018] It can be easily and compactly folded by simply releasing the stay and the fixing means, is easy to move and store, and does not occupy a space, so that labor saving and cost reduction can be achieved.

Since a large space can be kept under the scaffolding plate in use, the scaffolding can be easily installed even if obstacles are scattered under the scaffolding, and the construction can be performed without any trouble.

If necessary, the stay attachment position can be changed, and the space under the scaffolding plate can be adjusted and the stability of the scaffolding can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a normal use state of an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view showing a state in which the scaffolding plate is also lifted high.

FIG. 5 is a front view showing a state during folding as well.

FIG. 6 is an enlarged front view showing the same folded state.

[Explanation of symbols]

 1 Folding scaffolding 2 Scaffolding board 2a One scaffolding board 2b The other scaffolding board 3 Legs 4 Stays 5 Bottom rails for handrails 21 Hinge 22 Control board 23 Bolt 31 Leg upper end 32 Cantilever bar 33 Horizontal bar 34 Horizontal Bar 35 Horizontal bar 36 Stopper pin 37 Caster 41 One end of stay 42 The other end of stay

Claims (3)

[Utility model registration claims] 1. A rectangular scaffolding plate is folded in two at the center in the longitudinal direction and connected so that the upper surfaces thereof can come into contact with each other, and the connecting part has fixing means for making it unfoldable at the time of use. The upper ends of the legs are rotatably pivoted on the back surfaces of both ends in the longitudinal direction, and one end of an extendable stay for holding the legs and the scaffold plate at a right angle is attached to the back surface of the scaffold plate. A foldable scaffold, wherein the stay is rotatably attached to the leg and the other end of the stay is detachably attached to the connecting portion of the leg. 2. The folding scaffold according to claim 1, wherein connecting points are provided at a plurality of vertical positions of the leg, and the other end of the stay is detachably provided at any one of the connecting points. 3. The folding scaffold according to claim 1, wherein the leg is an extendable leg and a caster is provided at a lower end of the leg.