JPH0328456A - Working floor - Google Patents

Abstract

PURPOSE:To simplify constitution and to enable conveyance of a working floor by a method wherein a hollow and plateform bag with a gas-sealing plug is formed of a film material having airtightness, the interior thereof is filled with gas having specific gravity lower than that of air through the sealing plug, and the bag is anchored to a floor by means of a string and a rope. CONSTITUTION:A plurality of bags formed of a film material made of soft vinyl chloride resin are laterally and longitudinally intercoupled, and interconnected in a state that each bag keeps airtightness. A communicating hole 4 for intercommunicating the bags is formed in each bag 2, and a gas sealing hole 3 is formed in a part of a floor 1. A horizontally spanned hand rail 5 is located in the middle part of the bag 2 formed in a semiarcuate shape in a manner to cover a position above the floor 1, ropes 7 are tied to the end parts and the central part of a working floor surface, and are suspended toward the floor and anchored. In work, the working floor 1 and the bags 2 are filled with helium gas, and are orderly raised by means of the ropes 7. When a work is completed, the ropes 7 are pulled down by hands to lower the working floor from which gas is exhausted and the working floor is folded for conveyance.

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a work floor that can provide scaffolding for maintenance and management of large-space structures.

[Conventional technology] Maintenance of large-scale structures requires high scaffolding due to the high ceilings. In order to assemble temporary materials on the floor or scaffolding frames, etc., they were assembled to the required height while reinforcing them to prevent them from falling. Therefore, the work to erect the scaffolding required more labor and expense than the original purpose of the work, and the work to remove it also took time.

Therefore, some crane trucks have a work cage suspended from the tip of the crane. There were also systems that mechanically moved the workbench up and down and were built into a truck or the like.

(Problem to be solved by the invention) However, in any case, it is difficult to transport easily.
The equipment was also large-scale.

The present invention has been made in view of the above circumstances, and its purpose is to provide a simple work floor that can be easily transported and handled.

<<Means for Solving the Problems>> In order to achieve the above object, the work floor of the present invention comprises a hollow flat bag with a gas stopper made of an airtight membrane material, and inside the bag there is a gas with a specific gravity higher than that of air. A light gas is filled through the gas stopper, and this is fixed to the floor or ground with strings or ropes.

(Function) A gas with a light specific gravity is filled in, and its lifting force inflates a bag-shaped membrane material in the form of a flat plate, which the worker rides on and rises as it is. Once the desired height is reached, the string or rope is fixed to the ground and positioned. When changing the work location, all you have to do is remove the fixing device such as a string or rope, pull the fixing string or rope to the desired position in the same way as pulling a string attached to a balloon, and fix it at that location.

When the work is finished, all you have to do is remove the anchors, such as strings or ropes, from the ground or floor, pull them into the required position, open the gas valve, exhaust the gas inside, and fold it up.

<<Example>> Hereinafter, preferred examples of the present invention will be described in detail with reference to the drawings.

1A shows a relatively small one, and FIG. 1B shows a larger one. They all have the same basic structure and differ only in the way they are fixed. First, to explain Figure 1A, a membrane material made of a soft vinyl chloride resin material is cut vertically and horizontally to form several connected bags, and the ends are heat-sealed to ensure airtightness. The connection is fixed as shown. In this way, a floor 1 is formed, and a semicircular bag 2 extending over both ends is provided. A gas filling plug 3 is provided in a part of the component part of the bed 1, and when helium gas is filled inside from the gas filling plug 3, the bed 1 is configured so that the gas is distributed to other parts of the bag. Each bag portion is provided with a communication hole that communicates with each other.

That is, the gas filling plug 3 is provided with a check valve, and when helium gas is filled from there, the partition plates that separate the flat bags that make up the floor 1 are connected to each other. A hole 4 is provided through which gas is evenly distributed to each bag.

A bag 2 is formed in a semicircular shape to cover the floor 1.
A handrail 5 is provided horizontally in the middle of the handrail 5, and a string 6 is intermittently hung vertically toward the floor 1 in the middle of the handrail 5.

In addition to the lifting force on the floor 1, the bag 2 also obtains lifting force.

In order to fix this at a desired height, ropes 7 are tied to both ends and the center of the work floor 1, and the ropes 7 tied to both ends of the work floor 1 are tied to the center of the work floor 1 in the middle of the rope. The rope 7 tied together at the center of the work floor 1 is then hung straight down to the floor of a large space structure and fixed.

However, when the work floor 1 is large, it is necessary to ensure its levelness, so the openings 7 are hung from both ends of the work floor 1a as shown in FIG. Two ropes 7 are hung from the center, and the middle ropes 7 are divided into left and right parts, and the lower ends are tied together so that they form a triangular shape on the left and right sides together with the ropes 7 at the ends of the work floor 1. They are tied together, and a vertical anchoring rope is hung from each knot to anchor them to the floor or ground.

At this time, the lengths of the left and right ropes 7 let out can be adjusted to be balanced, and the work floor 1a can be fixed so as to be level. When using it, as shown in Fig. 2, in large space structures equipped with a retractable movable roof 9 that moves on arch beams 8, it is necessary to constantly check whether the movable roof is open or closed. For its management, helium gas is filled into the work floor 1, the bag 2, etc. through the gas filling plug 3, and a lifting force is applied to the work floor 1, the bag 2, etc., and the rope 7 is used to raise the helium gas one by one. The rope 7 is let out long at the arch beam 8, and the rope 7 is let out short at the base of the arch beam 8. This allows the length of the rope 7 to be fed out and the height of the work floor 1 to be set. Finally rope 7
All you have to do is fix the tip in the floor.

When one work is completed on the work floor 1, a person waiting on the floor of the building is notified of the completion of the work, and the rope 7 can be brought in by hand to lower the work floor 1.

When it is time to put it away, the work floor 1 can be folded into a small size and transported by opening the gas filling valve 3 and exhausting the helium gas.

<<Effects>> As explained in detail above, the work floor of the present invention uses a hollow flat bag with a gas-filled stopper made of an airtight membrane material, so that the air inside the work floor has a higher specific gravity than air. When filled with light gas from the enclosure plug, it is possible to obtain the lifting force to raise the work floor to the desired height. Furthermore, once the sealed gas is released, it can be easily folded and carried, making it extremely easy to transport. Furthermore, since it is anchored to the floor or ground with strings or ropes, the height of the work floor can be quickly adjusted by pulling in the anchoring strings or ropes without using any mechanical force, making it easy to move. The size of the work floor can also be kept small since the end of the rope fixed on the floor or ground can be untied and the rope can be pulled and moved to the desired position.

[Brief explanation of drawings]

Figure 1 shows a working floor. Figure 1 (A) is a side view of a relatively small working floor, Figure 1 (B) is a side view of a relatively large working floor, and Figure 2 shows a side view of a relatively large working floor. is an explanatory diagram showing a state when a work floor is used. 5... Handrail 7... Rope 9... Moving roof

Claims (1)

[Claims] A hollow, flat, gas-filled bag with a gas stopper is constructed from an airtight membrane material, and a gas with a specific gravity lighter than air is filled from the gas stopper inside the bag, and this is further fixed to the floor or ground with strings or ropes. A work floor characterized by comprising: