JP2008196210A - Portable simplified elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems of a conventional simplified elevator, particularly concerning the safety of workers and construction costs (construction period) under the circumstances that conventionally a large crane is set to lift scaffolding members from the ground and to temporarily construct a building structure, but acquisition of a space necessary for setting the crane is very difficult when the building structure is located in a densely built-up area in the civic center, resulting in execution of temporary construction work with very degraded efficiency. <P>SOLUTION: There is provided a new simplified elevator which is divided into a plurality of units so that assembly and disassembly of the same is carried out in a short time. Then in order to cope with a size of a cargo to be loaded thereon, an upper sheave unit and a shaft portion of a lower winding unit are spline-machined so as to be extendable/contractible. Right and left rails are formed of screw joints so as to cope with change of the height of the structure, and therefore they are successively extendable. Further the lower winding unit is provided with wheels, and therefore a single worker can move the same. Furthermore a counterweight is formed of a water tank, and therefore after completion of the work, water is drained, which enables the single work to easily convey the same. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention is a portable simple elevator that is used for assembling and dismantling a temporary scaffolding and unloading a wall of a structure.

Conventionally, assembly and disassembly of temporary scaffolds is done manually, and in the case of high-rise buildings, large cranes are brought to the site.

By the way, conventional temporary scaffolds are assembled manually up to the lower floors (upper limit of the second floor), and high-rise buildings, etc. use large cranes, but large cranes cannot be installed unless there is enough space. There was a problem in terms of cost and safety.

The present invention is a portable simple elevator that takes such problems into consideration and is easy to disassemble and relocate.

    The invention described in claim 1 is a portable simple elevator that can be manually attached to a temporary scaffold of a building structure or a side wall of the building in a short time.

In the second aspect of the present invention, since the vertical movement rail is processed into an add-on type, the lifting height can be easily adjusted.

According to the third aspect of the present invention, there are a plurality (two) of moving rails, and the gauge moves up and down.

In the invention according to claim 4, the shaft 10 and the shaft 7 have splines (for expansion and contraction).

The sliding ring 9 on the back side of the gauge moves up and down while grasping the moving rail 1.

The invention described in claim 6 is a portable simple elevator composed of an upper unit 11, a lower unit 12, and a traveling rail unit.

According to the first aspect of the present invention, assembly / disassembly / carrying out is possible manually, and the cost reduction effect is great.

According to the invention of claim 2, since the rail for vertical movement can be easily added, even if the height changes depending on the progress of the construction, it is possible to handle efficiently.

In the invention of claim 3, since the gauge moves on the two add-on type rails for moving the object, the suspended load is stabilized and safety can be secured.

According to the invention of claim 4, since the expansion / contraction spline 7 of the lower hoisting winch unit 4 and the spline 10 of the upper jib unit 11 expand / contract according to the size of the object, the suspension width can be changed and the convenience is great.

According to the fifth aspect of the present invention, since the sliding roller built-in ring 9 moves up and down while grasping the rail for vertical movement, stable vertical movement is possible and safety can be ensured.

In the invention of claim 6, since the clutch 6 is installed in the hoisting winch, the left and right winding drums can be rotated independently in accordance with the change in the left and right winding amounts, which is convenient for use.

Embodiments according to the present invention will be described with reference to the drawings.

Overall view Gauge and sliding diagram Lower hoisting winch diagram Upper hoist winch diagram Sliding roller internal ring diagram Building wall mounting diagram

Explanation of symbols

1 Transportable rail 2 Upper roller (shive) unit 3 Loading platform (gauge)
4 Lower hoisting unit 5 Hoisting drum 6 Clutch 7 Retractable yoke for lower hoisting unit (joint)
8 Transportable rail slot 9 Sliding roller built-in ring 10 Extendable yoke (joint) for upper sheave unit
11 Sheave unit 12 Counterweight

Claims (6)

It is a portable simple elevator that is attached to the temporary scaffolding of a building and the wall surface of a building structure and can carry objects up and down.
The portable simple elevator has two rails 1 which are parallel to each other and can be added.
The portable simple elevator has two parallel rails and moves the rail 1 up and down.
In the portable simple elevator, the shaft 10 in the upper sheave unit and the shaft 7 in the lower hoisting unit are splined so that they can be expanded and contracted.
The portable simple elevator has two upper and lower extension rails, and a sliding roller built-in ring 9 moves up and down on the rails.
  A clutch 6 is installed on the shaft of the lower hoisting unit.

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