JPH0247706Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention relates to an automatic lifting scaffold, particularly an automatic lifting scaffold that has a working floor on the upper part and raises and lowers this working floor by an automatic lifting mechanism. .

[Prior art]

Conventionally, as a scaffold that has a work floor and is raised and lowered by an automatic lifting mechanism, an extendable frame as shown in Fig. 1 is used as the automatic lifting mechanism, such as a hydraulic cylinder, a screw mechanism, etc., a slide mechanism, a link mechanism, etc. This was generally constructed by assembling a drive mechanism and the like on a truck having outriggers.

Conventional automatic lifting scaffolds were constructed as described above, and in order to ensure smooth operation, the entire assembly was adjusted by the manufacturer, and general users had to disassemble and reassemble it. It was difficult to do so.

For this reason, this type of automatic lifting scaffolding was transported to the place of use as a completed assembled product, and then taken out from the same place, but in general, there were only a few
Because it weighs 100 kg, a lifting machine must be used to handle it, and there are also narrow places along the delivery route, so if there is even one such narrow place, it will be difficult to handle the cargo. However, it was not possible to carry it in, and therefore, it had drawbacks such as being limited in the places where it could be used.

[Summary of the idea]

The present invention solves the above-mentioned drawbacks and disassembles the main components of an automatic lifting scaffold into heavy parts that can be easily transported by one or two people and can be easily disassembled and assembled. In addition, the purpose was to obtain an automatic lifting scaffold with a structure that does not require special skills or tools when disassembling and assembling it, and for this purpose, it can be divided into a base plate, each support, and a work floor. The base plate and the lower column are connected to each other in a manner that can be attached and removed, and the driving device is connected by a splittable coupling, and the work floor and the upper column are connected to each other by fitting the support member to the upper column. It is connected and configured to move up and down between the upper and lower supports, thereby eliminating the need for a lifting machine when transporting it to and from the place of use, and avoiding restrictions on the place of use due to loading roads. It provides automatic lifting and lowering scaffolding.

[Example of idea]

Hereinafter, the present invention will be explained based on FIGS. 2 and 3 showing one embodiment thereof.

In the figure, numeral 1 is a column having a telescopic extension mechanism, 2 is a base plate, for example, a trolley with moving rollers on the bottom surface and outriggers at the four corners, 3 is a work floor, and 4 is a drive device, such as an electric hoist. machine, 5 is a hoisting drum, 6 is a rope, e.g. wire rope, 7
8 is a coupling bolt, 8 is a fixing bolt for fixing the drum, 9 is a fixing pin for a support column, and 10 is a fixing pin for an electric hoist.

After the strut 1 is fitted and inserted into the fitting hole 2a of the trolley 2, it is inserted into the bracket 1a, 2b provided respectively.
It is fixed to the trolley 2 via. Also, work floor 3
is fixed to the upper support column 1b by inserting the insertion portions 3a, which are supporting members on both sides of the upper surface, into the upper hole 1c of the upper support column 1b. The electric hoist 4 is positioned on the trolley 2 using fixing pins or reamer bolts 10, and then bolted and connected to the hoisting drum 5 attached to the lower support column 1d by a coupling ring 7. For example, as shown in FIG. 3, this coupling 7 is engaged by the pressure of a spring 7a, and when removed, the coupling member 7b on the spring 7a side is shifted in the direction of compressing the spring 7a. The engaging portion of the coupling ring can be easily disengaged.

Also, one end of the wire rope 6 is attached to the hoisting drum 5, and the other end is attached and fixed to the directly outside of the upper support 1b, that is, the second stage support 1e. Lifting roller 1f, fixed roller 1g fixed to the second stage support, lifting roller 1 fixed to the second stage support 1e.
h, and a fixed roller 1j fixed to the lower support 1d, and continues to the winding drum side at the one end.

In addition, after this device is assembled as described above at the place of use, etc., the electric hoist 4 The driving force is transmitted to the hoisting drum 5, and the hoisting drum 5 is rotated. A wire rope 6 is attached to the hoisting drum 5, and by winding and unwinding the wire rope, a column having a telescope mechanism expands and contracts, raising and lowering the work floor.

[Effect of idea]

Since the device of the present invention is configured as described above,
It can be assembled and disassembled easily and accurately by an assembly worker who is skilled at assembling several parts at the site of use, or by a general worker without the need for special machines or tools. The maximum weight can be manufactured within several tens of kilograms, which can be carried by one or two people, so there is no need for a lifting machine during assembly.
It has the effect that it can be assembled in a short time by one or two workers, and the assembly accuracy of the column and drive device can be ensured by the fixing pins 9 and 10, and the left and right two
Synchronous adjustment of the amount of payout of each support can also be performed by matching the amount of rope wrapped around the hoisting drum attached to the support. Since this is ensured by fixing the drum 5, there is no need for any particular synchronization adjustment during subsequent disassembly and assembly. Therefore, the device of the present invention has the advantage that it can be easily carried into any narrow space.

[Brief explanation of drawings]

Figure 1 is a schematic front view of a conventional automatic lifting scaffold, Figure 2 is an external perspective view of an embodiment of the device of the present invention, and Figure 3 is a schematic front view of a conventional automatic lifting scaffold.
The figure is an explanatory external view of the coupling part in FIG. 2. 1, 1b, 1d, 1e...post, 1a, 2b...
...Bracket, 1c...Top hole, 1f, 1h...
Lifting roller, 1g, 1j...Fixed roller, 2...
...Bed plate (truck), 2a... Fitting hole (fitting part), 3
...Working floor, 3a... Support member (insertion part), 4...
... Drive device (electric hoist), 5... Hoisting drum,
6... Rope (wire rope), 7... Coupling, 7a... Spring, 8... Fixing bolt, 9...
Fixed pin. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims for Utility Model Registration] (1) It has a base plate on which a driving device is provided, and an upper column and a lower column that are engaged with each other in a telescopic manner, and which can be attached to and detached from the base plate. an extendable column that can be erected; and a column that is provided on the lower column, is detachably connected to the drive device via a splittable coupling, and is provided on the column. One end of the rope for expansion and contraction is attached, and the driving force of the driving device is transmitted and rotated, thereby winding and contracting the rope.
A hoisting drum that expands and contracts the support column by unwinding the support member, and a support member that is removably attached to the upper support support by fitting the support member, and is moved up and down together with the upper support support. 1. An automatic lifting scaffold, comprising: a work floor, which can be disassembled into the base plate, the pillars, and the work floor. (2) The base plate and the lower support each have a fitting part that is detachable from each other, and each has a bracket that can be connected and disassembled by a support fixing pin.Claim 1 of the Utility Model Registration Claim The automatic lifting scaffold described. (3) The hoisting drum is an automatic motor according to claim 1 or 2 of the utility model registration claim, in which a fixing bracket is provided with a fixing bolt for fixing the rotation of the hoisting drum by pressing the hoisting drum. Elevating scaffolding. (4) The coupling is configured to connect connecting parts by the pressing force of a spring, and is configured to divide the connecting part by removing this pressing force. An automatic lifting scaffold as described in any of paragraphs.