JPH02158584A - Lift path for temporary elevator - Google Patents

Abstract

PURPOSE:To facilitate construction of a life path for a temporary elevator by constituting into a sandwich shape a wall surface of each block of a heat insulating material and a steel plate and providing a protrusion in one connection surface of adjacent blocks and an insertion hole in the other while a connecting fixture inside the block. CONSTITUTION:A pit block, two or more intermediate blocks 2 and a machine room block are successively piled up forming a temporary lift path. The intermediate block 2 is constituted of a wall unit formed into a sandwich shape interposing a heat insulating material 2a by a steel plate 2b, providing a protrusion in one of each adjacent block and an insertion hole in the other, serving as the engaging fixture 7 for both the blocks. While each block provides in its inside a connecting fixture 8 comprising two or more connecting pieces and tightening bolts. Accordingly, by block 2 is light in weight enabling connecting work to be easily performed from inside the space of the lift path, and its construction work can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hoistway used in a temporary elevator.

[Prior Art] FIG. 5 is a partially cutaway perspective view showing a hoistway of a conventional hypothetical elevator disclosed in, for example, Japanese Patent Publication No. 49-42134.

In the figure, (1) is the pit block installed at the bottom, (
2) is an intermediate block, and (3) is a machine room block installed at the top, both of which are surrounded by concrete or steel plates and stacked one after the other from the bottom. (4
) is a connector that connects the blocks (1) to (3) with each other, and is fixed with bolts (4a).

(5) is pit block (1) and intermediate block (2)
This is the hoistway space formed inside the shaft.

The hoistway of a conventional hypothetical elevator is constructed as described above, and a truck crane (not shown) is used to sequentially lift the pit block (1), intermediate block (2), and machine room block (3). By stacking them up, a hoistway space (5) is formed inside. At this time, a scaffold (not shown) made of steel pipes, etc. is assembled on the outside of each block (1) to (3) to the height of the machine room block (3), and a worker on this scaffold installs the connector (4). The hoistway space configured in this way (
5) A toe (not shown) is placed and used as a temporary elevator.

[Problem to be solved by the invention] In the hoistway of the conventional temporary elevator as described above, the heavy pit block (1) and intermediate block (2)
and hoistway blocks (3) are piled up, and scaffolding is erected on the outside to connect each block (1) to (3), so the mutual positioning of each block (1) to (3) is difficult. It is difficult and requires a lot of effort to build.

There is also the problem that the danger during one operation is high.

This invention was made to solve the above-mentioned problems, and it is an object of the present invention to provide a hoistway for a temporary elevator that can be constructed safely and easily.

[Means for Solving the Problems] The hoistway of a temporary elevator according to the present invention is constructed by laminating at least one of each block with a heat insulating material sandwiched between steel plates, and the joint surface of the adjacent blocks is A protrusion is provided on one side, an insertion hole is provided on the other side, and a connector for connecting the blocks to each other is provided inside the blocks.

[Function] In this invention, each block is constructed by laminating heat insulating material between steel plates in a sandwich-like manner, so that it is lightweight. Further, positioning work is performed by an engaging tool provided on the joint surface of the block, and joining work is performed in the hoistway space by a coupling tool.

[Example] Figures 1 to 3 are diagrams showing an example of the present invention.
The figure is a perspective view of the intermediate block, FIG. 2 is a perspective view showing the construction procedure, and FIG. 3 is an enlarged vertical cross-sectional view of the joint. Portions similar to those of the conventional device are designated by the same reference numerals.

In the figure, (2) is an intermediate block made of a heat insulating material (2a) made of lightweight material such as lightweight aerated concrete or gypsum board as the core material, and steel plates (2b) are laminated and fixed on both sides in a sandwich-like manner, and (7) is an intermediate block ( 2) (2) An engagement tool provided on each joint surface of the intermediate block (2) and the pit block (1) and between the intermediate block (2) and the machine room block (3), with a plurality of engagement tools provided on one of the joint surfaces. Each block (1) (8) consists of a protrusion (7a) that is fixed at a certain point and has a substantially conical tip, and an insertion hole (7b) provided on the other side into which the protrusion (7a) is inserted. - (3) This is a coupling device provided at a plurality of locations inside the coupling member, and consists of coupling pieces (8a) fixed to the coupling surfaces facing each other and bolts (8b) for fastening the coupling pieces (8a).

(9) is a wire rope for hoisting each block (1) to (3).

In the hoistway of the temporary elevator constructed as described above, construction work is performed in the following steps.

That is, the pit block (1) is suspended by a truck crane or the like using a wire rope (9) and fixed at a predetermined position. Next, lift the intermediate block (2) onto the pit block (1) and insert the protrusion (7a) into the insertion hole (
7b) and lower the intermediate block (2). The protrusion (7a) and the insertion hole (7b) are now engaged, and the joining position of the pit block (1) and intermediate block (2) is determined. In this way, the intermediate blocks (2) are stacked one after another, and finally the machine room block (3) is stacked on top of the uppermost intermediate block (2).

Next, a car is installed in the hoistway space (5) and used as a work floor, or a simple scaffold is erected and the connecting piece (8a
) is inserted into each block (1) by the bolt (8b) inserted through it.
~(3) Connect each other.

In this way, each block (1) to (3) is lightweight, and each block (1) to (3) is
can be positioned, and the coupling tool (8) allows the hoistway space (5
) Since each block (1) to (3) can be connected from inside, the work can be done easily and safely. Further, even when this hoistway is installed on the outer wall of a building, heat from sunlight is blocked by the heat insulating material (2a), and the hoistway space (5) is prevented from becoming high temperature.

FIG. 4 is a longitudinal cross-sectional view of an engaging tool portion showing another embodiment of the present invention, in which a pawl (7d) pivotally supported by a pin (7c) is provided at the tip of a protrusion (7a). 7d) is always urged outward.

That is, when the protrusion (7a) is inserted into the insertion hole (7b), the pawl (7d) is pushed by the insertion hole (7b) and passes through the insertion hole (7b) while being squeezed inwardly, Since it then expands outward, it is possible to prevent the protrusion (7a) from escaping from the insertion hole (7b) due to external force, further improving the safety of the work.

In addition, in each of the above embodiments, the intermediate block (2) is composed of the heat insulating material (2a) and the steel plate (2b) in a sandwich shape, but this can also be applied to the pit block (1) and the machine room block (3). It is obvious that it can be done.

[Effects of the Invention] As explained above, in this invention, at least one of each block is constructed by laminating a heat insulating material between steel plates in a sandwich-like manner, and a protrusion is inserted into one of the joining surfaces of adjacent blocks and inserted into the other. In addition to providing holes, we also provided a connector inside the block to connect the blocks to each other, making the block lightweight, allowing for connection work from within the hoistway space, and eliminating the need for scaffolding outside the hoistway, making it safer. This also has the effect of making it easier to construct the hoistway.

[Brief explanation of the drawing]

1 to 3 are views showing one embodiment of the hoistway of a temporary elevator according to the present invention, in which FIG. 1 is a perspective view of an intermediate block, FIG. 2 is a perspective view showing the construction procedure, and FIG. 4 is an enlarged longitudinal sectional view of a joint portion, FIG. 4 is a longitudinal sectional view of an engaging tool portion showing another embodiment of the present invention, and FIG. 5 is a partially cutaway perspective view showing a hoistway of a conventional temporary elevator. It is. In the figure, (1) is a pit block, (2) is an intermediate block, (2a) is a heat insulator, (2b) is a steel plate, (3) is a machine room block 5 (7) is an engaging tool, and (7a) is a Protrusion, (7b
) is an insertion hole, and (8) is a coupling tool. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In a hoistway formed by stacking pit blocks, intermediate blocks, and machine room blocks each surrounded by plate-shaped members, at least one of the blocks is constructed by laminating a heat insulating material between steel plates in a sandwich-like manner. , an engagement tool consisting of a plurality of protrusions provided on one side and an insertion hole provided on the other side that engages with the protrusions is provided on the joining surface of each of the adjacent blocks, and an engagement tool is provided on the inside of the block. A hoistway for a temporary elevator, characterized in that it is provided with a coupling tool for coupling the blocks together.