JPH0759853B2 - Stage for loading and unloading suspended loads - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a stage for carrying in and out of a suspended load, which is provided at an opening part opened in a part of a floor or wall of a building for carrying in and out of materials. It is about.

<Conventional technology> At building sites in urban areas, etc.
An opening is provided in the floor of each floor inside the building, and a crane is used to unload the cargo and the suspended load is taken into each floor.

In such a case, in the conventional method, as shown in FIG. 4, first, the handrail 7 for fall prevention provided at the edge of the opening 41 of the floor 4 is removed, and the suspended load 5 lifted by the crane 6 is removed. Is carried out by the worker.

<Problems to be Solved by the Present Invention> The above-mentioned conventional techniques have the following problems.

<A> When carrying in / out the suspended load 5, the handrail 7 for fall prevention is removed.

Therefore, work is performed in a very dangerous state.

<B> In order to take in the suspended load 5 suspended by the crane 6, it is necessary to pull in the suspended load 5 in the lateral direction.

Therefore, the worker is pulled in the direction opposite to the pulling direction, and there is a high risk of falling.

<C> When the suspended load 5 is taken in, the wire 61 of the crane 6 hits the floor body 4 on the upper floor, and is further pulled inward.

Therefore, the wire 61 may be damaged.

<D> It is necessary to remove and attach the handrail 7 every time the hanging load 5 is carried in and out.

Therefore, the work becomes complicated, and the handrail 7 may not be attached until the next loading / unloading work, which is dangerous.

<E> The worker needs to move when pulling the suspended load 5 laterally.

Therefore, if the safety belt is attached, it is difficult to move and the work becomes difficult. Therefore, the work is often performed without the safety belt, which is dangerous.

<Object of the Present Invention> The present invention has been made to solve the above problems, and provides a stage for carrying in and out a suspended load that can safely and easily carry in and out a suspended load. The purpose is to provide.

<Structure of the Present Invention> An embodiment of the present invention will be described below with reference to the drawings.

In addition, in the present embodiment, the case where the opening is provided on the floor will be described, but the present invention can also be adopted when the opening is provided on the wall surface of the building.

<A> Stage (FIGS. 1 and 2) The stage 1 is a plate body having an area sufficient to mount the suspended load 5.

The stage 1 is, for example, an H steel 11 and an inverted C section which are arranged at equal intervals.
It is conceivable that the scaffolding plate 12 is attached to the upper surface of a character steel material or the like.

A protrusion 13 is formed on one end of the H steel 11, and the protrusion 13 is formed.
An elongated hole 14 is formed in the vicinity of 13 along the long side direction of the H steel 11.

Further, a fastener 16 having a hole 15 is attached to the lower portion of the other end of the H steel 11, and a shaft support 18 having a pin 17 is attached to the upper portion thereof.

<B> Fence body (Figs. 1 and 2) Fence body 2 is a plate-like body formed by arranging a net, for example, on a steel rod, and forms a width and height in consideration of a fall prevention effect. .

A projection 21 is formed on one end of the fence 2 and the projection 21 is formed.
In the vicinity of 21, a shaft support metal fitting 23 having an elongated hole 22 is attached along the long side direction of the fence 2.

<C> Receiving metal fitting (Figs. 1 and 2) The shape of the receiving metal fitting 3 is, for example, two plate members positioned in parallel with each other, and one plate is in the middle direction and the other is in the right angle direction. It is composed of connected plates.

As shown in FIG. 2, the receiving metal fitting 3 has a short engaging portion 31 and a long retaining portion 32 which are positioned in parallel with each other, and a bolt hole is opened in a plate member connecting between them.

A hole 33 is formed in the fastening portion 32.

A shaft support fitting 35 having a pin 34 is attached between the locking portion 31 and the fastening portion 32.

<D> Assembly method of each member (Figs. 1 and 2) Fit the pin 17 of the shaft support metal fitting 18 of the stage 1 into the elongated hole 22 of the shaft support metal fitting 23 of the fence body 2 to mount the fence body 2 Attach rotatably.

The bracket 3 is fixed to the floor 4 at the edge of the opening 41 with bolts 36.

At this time, the locking portion 31 and the fastening portion 32 are fixed toward the center of the opening 41 and the locking portion 31 is located above.

The receiving metal fittings 3 are attached at two positions with a certain interval, but before being fixed, the long holes 14 at both ends of the stage 1 are fixed.
Then, the pin 34 of the shaft support fitting 35 is fitted and the stage 1 is rotatably attached.

The stage 1 is attached so that the scaffolding plate 12 is located above.

<How to carry in / out suspended loads> The method of carrying in / out suspended loads according to the present invention is performed as follows.

<A> Overhang of Stage (FIGS. 1 to 3) First, the stage 1 on the floor where the suspended load 5 is carried in and out is overhanged to the opening 41.

Store Stage 1 on the other floors.

When the stage 1 is extended, the base end portion of the stage 1 contacts the locking portion 31 of the receiving metal fitting 3.

Therefore, the stage 1 can maintain the horizontal state.

Then, the fence 2 is raised at a right angle, and the protrusion 21 is pulled down into the hole 15 of the fastener 16 to be fitted therein.

Therefore, the fence 2 can be reliably prevented from falling without swinging.

<B> Carrying In / Out of Suspended Load (FIG. 3) Next, as shown in FIG. 3, the suspended load 5 suspended by the wire 61 of the crane 6 is suspended on the stage 1.

Alternatively, the crane 5 lifts the suspended load 5 transported to the stage 1.

At this time, hoisting or hoisting of the suspended load 5 by the crane 6 can be performed only in the vertical direction.

Moreover, since the stage 1 on the upper floor is stored, the wire 61 does not hit.

<C> Storing the stage (FIGS. 1 to 3) After the loading / unloading work of the suspended load 5 is completed, the stage 1 is stowed.

First, pull up the fence 2 upward, and then the protrusion 21 and the fastener.
Remove the mating with 16.

Then, the scaffolding board 12 is rotated and folded.

Next, the stage 1 is pulled in the horizontal direction and raised until it becomes perpendicular to the floor 4.

Then, the protrusion 13 is fitted into the hole 33 of the shaft support fitting 35.

Therefore, the stage 1 can reliably obtain the effect as a fence body for preventing a fall without swinging.

When projecting the stage 1 again, the stage 1 is first pulled up to disengage the projection 13 from the shaft support fitting 35, and then rotated to project.

<Effects of the Present Invention> Since the present invention has been described above, the following effects can be expected.

<A> Conventionally, when carrying in / out a suspended load, the handrails to prevent the fall are removed.

Therefore, work is performed in a very dangerous state.

However, in the case of the present invention, even during the work of loading and unloading a suspended load, by the folding fence body attached to the stage,
It is possible to prevent workers from falling.

Therefore, no matter how high the work is, it is possible to carry in and out the suspended load with safety first.

<B> Conventionally, when a suspended load suspended by a crane is taken in, it is necessary to pull the suspended load in the lateral direction, so that the worker is pulled in the direction opposite to the retracted direction, and there is a high risk of a fall.

On the other hand, in the present invention, since the suspended load can be placed on the projecting stage, the suspending work by the crane can be always performed in the vertical direction.

Therefore, it is not necessary to pull the suspended load in the lateral direction, and there is no fear that the worker will be pulled in the direction opposite to the pulling direction.

<C> Conventionally, when the suspended load is taken in, the wire of the crane hits the floor of the upper floor and is further pulled inward, which may cause damage to the wire.

According to the present invention, only the stage on the floor where the suspended load is taken in is projected, and the other stages on the upper floors can be stored.

Therefore, the wire does not hit the floor of the upper floor.

Therefore, there is no damage to the wire and it is economical, and
It is unlikely that an accident due to wire cutting will occur.

<D> Conventionally, it is necessary to remove and install handrails for each loading / unloading work of suspended loads, which complicates the work and may not attach the fence until the next loading / unloading work. Is.

However, in the present invention, the loading and unloading work of the suspended load can be performed only by overhanging the stage and the fence and folding them.

Therefore, the work can be performed very easily and quickly as compared with the conventional method.

<E> Conventionally, workers have to move when pulling a suspended load laterally, so they cannot move if a safety belt is attached,
I can't work.

However, in the present invention, it suffices to hang or lift the hanging load straight on the stage.

Therefore, it is not necessary to pull the suspended load laterally.

Therefore, since the worker does not have to move, the worker can attach the safety belt to work.

<F> It is possible to hang the suspended load vertically on the stage and also to vertically lift it from the stage.

Therefore, the work can be easily performed, and the work time can be shortened.

[Brief description of drawings]

 FIG. 1: Explanatory diagram of an embodiment of the present invention FIG. 2: Explanatory diagram of mounting method of stage and fence body FIG. 3: Explanatory diagram of loading / unloading work of suspended load FIG. 4: Conventional transport of suspended load Illustration of entry work

Claims (1)

[Claims] 1. A stage for loading and unloading of a suspended load, which is provided in an opening partly opened in a part of a building for loading and unloading materials, one end of which is axially supported by an edge part of the opening and which is in a vertical direction. And a plate body that can be fixed in the horizontal direction and a fence body that is axially supported by the free end of the plate body and that can be fixed in the direction perpendicular to the plate body.