JPH0616596U - Mobile scaffolding for high places - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the handling of mobile scaffolds with long legs during transportation and storage. [Structure] A long leg having a tall moving scaffold is divided into an upper leg 4 and a lower leg 16, and the upper leg 4 is foldably attached, and the lower leg 16 is stacked on the upper leg. The upper leg body 4 and the lower leg body 16 are configured to be rotatably connected so as to be foldable, and to be fixed as one leg body at the time of use. As a result, the long leg can be folded in two during transportation and storage, and can be made compact and easy to handle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mobile scaffold used for work in high places during interior work of a building.

[0002]

[Prior art]

 Conventionally, mobile scaffolds that can easily move work scaffolds have been used for interior work involving aerial work in the interior work of buildings. This mobile scaffold has foldable legs with casters at the four corners of a rectangular frame, and scaffolding boards are laid on the top of the frame to form a work floor.

[0003]

[Problems to be solved by the device]

 However, in the conventional mobile scaffolding, the length of the legs is less than half the length of the frame and it can be simply folded, but a taller mobile scaffolding is also required. Has a problem that the legs are too long to be simply folded and are not easy to handle.

In view of the above points, an object of the present invention is to provide a mobile scaffold for aerial places, in which a leg structure is devised so as to be foldable and which can be easily handled during transportation and storage.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides long legs having casters at four corners of a rectangular frame so that the legs are movable, and a scaffolding plate is laid on the top of the frame to form a working floor. In a mobile scaffolding for high places, upper legs shorter than ½ of the length in the longitudinal direction of the frame are axially foldable inward in the longitudinal direction of the frame on the lower surfaces of the four corners of the frame, The lower leg, which has casters on the lower end of the leg, is attached by connecting means that connects the lower leg to the upper leg so that the lower leg can rotate in the longitudinal direction of the frame. It is provided with a fixing means for fixing the rotation of the lower leg when it is positioned in a fixed shape.

[0006]

[Action]

 According to the present invention, when transporting and storing a mobile scaffold for high places, first, the fixing means of the connecting portion between the upper leg and the lower leg is released to rotate the lower leg with respect to the upper leg. When possible, bend the lower leg from the connecting part so that it overlaps the upper leg. Then, the upper leg is further folded inward in the longitudinal direction of the frame centering on the axially attached portion with the frame. In this way, by folding the legs in two stages, the long legs can be made compact and can be stored in the frame that serves as the work floor, making it easy to handle during transportation and storage. it can.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show the overall structure of the mobile scaffold of the present invention, and FIGS. 4 to 7 show enlarged main parts thereof.

Reference numeral 1 is a mobile scaffold for high places used as a movable work scaffold, and a rectangular frame body 2 forming a work floor is arranged at the upper part, and inside the frame body 2 is provided. Reinforcing horizontal rails 3 are arranged parallel to the lateral direction of the frame body 2. On the lower surfaces of the four corners of the frame body 2, the upper ends of the upper leg bodies 4 made of tubular bodies are axially attached by the hinge shaft bodies 5, respectively, as shown in the enlarged view of FIG. It can be folded inward along the longitudinal direction. A horizontal member 6 is arranged between the pair of upper legs 4 located on the shorter side of the frame 2 to keep the upper legs 4 parallel to each other.

Reference numeral 7 is a diagonal member whose both ends are rotatably supported between a horizontal member 6 and a horizontal rail 3 of the frame body 2. The diagonal member 7 is composed of two reinforcing members 8 Are connected to each other by a shaft body 9 so that they can be bent from the central portion, and the bending of the diagonal member 7 as shown in FIG. 5 can be fixed to the portion where the reinforcing member 8 in the central portion overlaps. The stopper 10 is fixed to one side of the reinforcing member 8, and the reinforcing member 8 on the other side can move in and out of the stopper 10 inside the substantially inverted U-shape. Then, when the upper leg 4 is pulled up, the pair of reinforcing members 8 rotate about the shaft attachment portions of the horizontal rail 3 and the horizontal member 6, respectively, and extend linearly to extend the diagonal member. 7 is formed, and one side of the reinforcing member 8 is fitted in the concave portion inside the stopper 10 to hold the reinforcing member 8 in a straight line shape.

As shown in an enlarged view in FIGS. 6 and 7, an adjustment column 11 for adjusting the leg height is inserted in the upper leg 4 so as to be retractable. The adjustment column 11 is used for adjusting the leg height. The adjusting holes 12 are formed at appropriate intervals, and the leg height is appropriately adjusted and fixed by the fixing pins 13.

A short pipe 14 is fixed to the lower end of the adjustment column 11 at a right angle to the adjustment column 11 and in parallel with the lateral direction of the frame body 2. A horizontal pipe 15 having a diameter slightly smaller than that of the short pipe is inserted between the pair of short pipes 14 located so as to be rotatable in the axial direction. Then, lower legs 16 are fixed to both ends of the horizontal pipe 15 at right angles to the horizontal pipe 15, and moving casters 17 are attached to the lower ends of the lower legs 16. Further, a pin hole which is inserted into the short pipe 14 and the horizontal pipe 15 so that the lower leg 16 can be fixed when the lower leg 16 is rotated to a position where the lower leg 16 is linear with respect to the upper leg 4. The lower leg 16 is fixed by inserting the fixing pin 18 into this pin hole.

Reference numeral 19 denotes a brace that reinforces the lower leg 16 that is opposed to the lower leg 16, and both ends of the brace are fixed to the retaining pin 20 that protrudes vertically from the lower leg 16.

Next, the assembly and folding of the legs of the moving scaffold for high places will be described with reference to FIGS. 8 and 9.

First, when assembling the legs, the movable scaffold 1 for high places is laid down so that the legs face upward as shown in FIG. 8A. Next, as shown in FIG. 8 (b), the upper leg 4 is pulled up, the diagonal member 7 is made to follow and extend, and one of the reinforcing members 8 constituting the diagonal member 7 is attached to the stopper 10 of the diagonal member 7. Fit in. Next, as shown in FIG. 8 (c), when the diagonal member 7 is held in a straight line, the fixing pin 18 provided on the short pipe 14 shown in FIG. 6 is pulled out to make the lower leg 16 rotatable and the lower leg 16 9 is rotated upward and stopped at a position where it is linear with the upper leg 4 as shown in FIG. 9A, and the fixing pin 18 is inserted into the short pipe 14 to fix the lower leg 16. The lower leg 16 is reinforced by bracing the braces 19. Further, as shown in FIG. 9B, the adjustment pin 13 provided on the upper leg body 4 is pulled out to allow the adjustment column 11 to be retracted and retracted, and the adjustment column 11 is pulled out from the upper leg body 4 to obtain a desired leg height. After stopping at the position where the adjustment column 11 is stopped, the adjustment pin 13 shown in FIG. 6 is inserted into the adjustment hole 12 from the upper leg 4 to fix the adjustment column 11 to the upper leg 4. When the fixing of the adjusting pillar 11 is completed, the moving scaffold that has fallen is caused to be used.

Further, when the legs are folded, the procedure is performed in the reverse order of the above-mentioned assembling, and the moving scaffold is first turned over as shown in FIG. 9B. Next, the adjustment pin 13 provided on the upper leg body 4 is pulled out to allow the adjustment column 11 to be retracted and retracted, and the adjustment column 11 is housed in the upper leg body 4 as shown in FIG. Secure to body 4. Next, as shown in FIGS. 8 (c) and 8 (b), the brace 19 is removed, the fixing pin 18 is pulled out to make the lower leg 16 rotatable, and the lower leg 16 is rotated downward. So that it is superposed on the upper leg 4. Further, as shown in FIG. 8 (b), the upper leg body 4 having the lower leg body 16 superposed thereon is folded in the longitudinal direction of the frame body 2, and the leg body is folded in two stages as shown in FIG. 8 (a). It is stored in the frame body 2. By folding the legs in two stages in this manner, the long legs can be made compact and stored in the frame 2. In the present embodiment, an example of connecting the upper leg 4 and the lower leg 16 with a short tube 14 and a horizontal tube 15 will be described, and an example of using a fixing pin 18 as a fixing means of the connecting portion will be described. As described above, various methods other than the embodiments are conceivable as the connecting means and the fixing means, and it goes without saying that other connecting means and fixing means can be used without departing from the scope of the present invention. .

[0017]

As described above, according to the above, the upper legs 4 shorter than ½ of the length of the frame 2 in the longitudinal direction are axially foldably attached to the lower surfaces of the four corners of the frame 2, and the upper legs are The lower leg 16 provided with casters 17 is rotatably connected to the lower end of the body 4 so as to be folded, and the lower leg 16 is positioned linearly with respect to the upper leg 4 during use. Since it is configured so that it can be fixed at any time, the long leg consisting of the upper leg 4 and the lower leg 16 can be folded at two places to make it compact, and it is nearly twice as tall as the conventional mobile scaffold. Even if it is high, it can be easily handled during transportation and storage.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an enlarged view of a mounting portion of the upper leg of FIG.

5 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 6 is an enlarged view of a mounting portion of the lower leg of FIG.

7 is a sectional view taken along line BB of FIG.

FIG. 8 is an explanatory diagram showing a procedure for assembling the legs.

FIG. 9 is an explanatory diagram showing a procedure for assembling the legs.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mobile scaffolding for high places 2 ... Frame 4 ... Upper leg 5 ... Shaft 14 ... Short pipe (connecting means) 15 ... Horizontal pipe (connecting means) 16 ... Lower leg 18 ... Fixing pin (fixing means) 17 ... caster

Claims (1)

[Scope of utility model registration request] 1. A moving scaffold for high places in which long legs having casters are provided at four corners of a rectangular frame so as to be movable, and a scaffolding plate is laid on the upper surface of the frame to form a working floor. Upper legs shorter than one-half the length of the body are axially attached to the lower surfaces of the four corners of the frame so as to be foldable inward in the longitudinal direction of the frame, and casters are attached to the lower ends of the upper legs. The lower leg provided with is attached by a connecting means for rotatably connecting in the longitudinal direction of the frame body, and the lower leg is attached to the connecting means when the lower leg is positioned linearly with respect to the upper leg. A mobile scaffold for high places, which is provided with fixing means for fixing rotation.