JPH0249312Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a work scaffold mainly used indoors.

BACKGROUND TECHNOLOGY Various methods of assembling this type of scaffolding have been considered, and most of them involve adding pipe-shaped legs in the vertical direction. When adding leg members in the vertical direction using connecting members, the connecting members protrude from the outer surface of the leg members.

Problems to be Solved by the Invention Then, there was a problem in that when going up and down using the ladder provided on the leg material, work clothes etc. got caught on the connecting member, which was dangerous.

This invention solves these problems,
The object of this invention is to provide a safe work scaffold with no protruding members that could catch work clothes etc. when a worker ascends or descends a ladder.

Means for Solving the Problem In order to solve this problem, the present invention engages one leg member having a generally-shaped cross-sectional shape with the other leg member having a generally-shaped cross-sectional shape, and The legs are arranged in a plurality of stages in the vertical direction, and the other leg is simultaneously engaged with a plurality of legs located in the vertical direction of one leg, so that the legs have a substantially □-shaped cross section. A ladder rung is provided in advance on one of the legs so as to be located on a pair of opposing sides among the four sides formed by the legs of the corner part, Connecting plates at both ends of the horizontal beam are supported by bolts so that the horizontal beam is located on the opposite side of the other set of four sides, spanning the vertical contact portion of the other leg member, Scaffolding boards are provided between opposing ladder crosspieces at appropriate positions in the vertical direction.

Function With this configuration, the bolts that protrude from the outside are on the horizontal rungs and not on the ladder rungs, so there is no risk of workers getting their work clothes caught when going up and down the ladder rungs, making it safe. be.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings.

In the figure, 1 is a first leg provided in four stages in the vertical direction, 2 is a second leg that engages with the first leg 1 except for the middle part in the vertical direction, and 3 is the middle in the vertical direction A third leg member that engages with the first leg member 1 at the portion thereof, and these first to third leg members 1 to 3 are formed to have substantially the same cross-sectional shape, and Material 1
and second leg material 2, first leg material 1, and third leg material 3
When engaged with each other, the cross-sectional shape is approximately square as shown in FIG.
Further, the first leg member 1 and the third leg member 3 have the same length, and the second leg member 2 is formed longer than the first and third leg members 1 and 3. As a result, the second and third leg members 2 and 3 are the two first leg members 1 and 3, respectively.
1. In this way, the leg bodies constituted by the first leg member 1, the second leg member 2, and the third leg member 3 are located at four corner portions in the vertical direction. A ladder crosspiece 4 is provided between the first leg members 1, 1 on the two shorter sides of the four sides formed between the legs of the four corner parts.
He is the successor to Comrade 1,1, who is the leg member of Furthermore, this ladder rung 4
is prepared by connecting first leg members 1, 1 to both ends thereof with screws 5 in advance. Reference numeral 6 denotes horizontal bars provided on two long sides of the four sides formed between the legs of the four corner parts, and these are two horizontal bars arranged in parallel as shown in FIG. A set of two horizontal bars 6, 6 is connected at both ends to connecting plates 7, 7 with screws 8...
The connecting plates 7, 7 at both ends are bolted to the first leg 1 and the second and third leg members 2, 3. 9... and connects the first leg members 1, 1, the second leg members 2, 2, and the third leg members 3, 3 (see Fig. 2). At this time, the connecting plate 7 is simultaneously fixed to the second and third leg members 2 and 3 so as to straddle the abutting portion of the second leg member 2 and the third leg member 3 in the vertical direction. The second leg member 2 and the third leg member 3 are connected in the vertical direction. More specifically, as shown in FIGS. 2 and 4, the connecting plate 7 has both sides overhanging the horizontal crosspiece 6, and this overhanging portion 7a is connected to the first leg member 1, the second leg member 2, and the second leg member 6. It is engaged with the inside of the groove part 10 formed by the leg material 3 of No. 3.
At the same time, the first leg member 1 and the second and third leg members 2 and 3 are engaged with each other with almost no play, and as shown in FIG. By tightening the plate 7 with bolts 9 and fixing the first, second and third leg members 1, 2, and 3 at the same time, the four corner leg members are firmly connected. That will happen. Reference numeral 11 indicates engagement portions 11 at both ends of the ladder bars 4, 4 located at appropriate positions in the vertical direction and facing each other.
A is a scaffolding board that is engaged from above. This scaffold board 11 is actually provided in multiple stages in the vertical direction.

Incidentally, in the embodiment shown in the drawings, two horizontal bars 6 are provided in parallel to form a set, but it is also possible to use one provided in an X shape, that is, a sash shape.

Effects of the invention As described above, according to the present invention, assembly is extremely simple, but since the bolts that come out on the outside are on the horizontal rungs and not on the ladder rungs, workers can move up and down the ladder rungs. It is safe because there is no risk of your work clothes getting caught when doing so.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an overall perspective view, Fig. 2 is a cross-sectional view of the leg, Fig. 3 is a front view of the ladder rung, and Fig. 4 is a perspective view of the horizontal rung. It is a diagram. 1...first leg material, 2...second leg material, 3...
Third leg material, 4... Ladder crosspiece, 5... Screw, 6...
Horizontal beam, 7... Connection plate, 7a... Overhang, 8...
...screw, 9...bolt, 10...groove, 11...
scaffolding board.

Claims (1)

[Scope of utility model registration request] One leg member having an approximately-shaped cross-section is engaged with the other leg member having an approximately-shaped cross-sectional shape, and both legs are positioned in multiple stages in the vertical direction, and the other leg member is connected to one leg member. A leg body having a substantially □-shaped cross section is configured to be simultaneously engaged with a plurality of legs located in the vertical direction of A ladder rung is provided in advance on one of the leg members so that the ladder rung is positioned at For work, connecting plates at both ends of the horizontal rungs are supported with bolts across the vertical contact area of the other leg, and scaffolding boards are installed between opposing ladder bars at appropriate positions in the vertical direction. scaffold.