JPH08277625A - High place working device - Google Patents

Abstract

PURPOSE: To quickly and efficiently perform a high place work at low cost without temporarily providing a working scaffold in a narrow place where a high place working vehicle mainly consisting of a four-wheel car can not be advanced and fixed or a bad condition place such as uneven ground or inclined ground. CONSTITUTION: This device is formed of a working base leg 2 consisting of a pair of expansion bars 4A, 4B having an upper bar 6 and a lower bar 5 combined in such a manner as to be expansible and contractible, the expansion bars being set in parallel with a required space S, and having a support point 7 for a working base 3 on the upper end and a ground base part 8 on the lower end; and the working base 3 hinge-connected to the support point 7 of the working base leg 2 and provided on the upper part of the working base leg 2 by a connecting arm 14 between the expansion bars 4A, 4B. The working base 3 is constituted in such a manner that a general ladder 10 can be set against, a setting point 9 in the part of the support point 7 is set against the outer wall 11 of a building, and the material and equipment for a work and a worker are put on the working base 3 set in a required height to perform the work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the construction of outer walls and windows existing at a high position in a building, or various high places such as piping / wiring and attaching accessories to the high position of the building outer wall. The present invention relates to an aerial work device that can be easily and safely used for construction work.

[0002]

2. Description of the Related Art In order to make construction at a high position such as an outer wall of a building safe and efficient, an aerial work vehicle dedicated to aerial work is used, or the outer wall of an object to be constructed is provided on the outer periphery. ,
The construction method is adopted by temporarily constructing a scaffold for construction, and the aerial work vehicle 30 (see FIG. 5) is provided with a boom 31 that expands and contracts on the work vehicle body of a four-wheel vehicle that is fixed at the construction site. Equipment and tools required for a series of construction work are placed on the work box 32 at the tip of the boom 31, and the work box 3
A worker is supposed to work on the 2nd item.

[0003]

Although the above conventional work vehicle 30 for aerial work is maneuverable and capable of efficient work at a high place, it is a place where the vehicle body cannot enter or a narrow place where the work vehicle 30 cannot be placed. In addition, since it is not available, and since it is a private car, the usage cost is high, so there is a problem that the construction cost is high even for simple high-altitude work.

On the other hand, the temporary construction of the above-mentioned construction scaffold has a structure in which a large number of support legs are erected and a scaffolding board is laid over. Therefore, obstacles are removed to secure a considerable space, and sufficient safety is ensured. Since it is necessary to check and set it, it takes a considerable construction period and cost for setting work by a specialized worker and removal work after completion of work at high places, so even if it is simple work at high places, construction cost Will be high and the construction period will be long.

The present invention provides an aerial work apparatus which solves the above-mentioned drawbacks of the prior art.

[0006]

An aerial work apparatus according to the present invention which solves the above technical problems is described as follows: "It is composed of telescopic bars which are installed side by side with a required space and which can be telescopically set. It has a work platform leg that has a leaning point in the upper part and a lower end serving as a grounding base, and a work platform provided at the upper end of the work platform leg. Furthermore, the work platform can freely stand on a separate lifting ladder. The structure has the shape of.

That is, the aerial work apparatus of the present invention, when the outer wall work or the window work is performed from the outside of the building, the work bench legs are set up by leaning against the building to be constructed, and the work bench legs are By adjusting the length, the workbench at the top of the workbench leg is set to the required height, and a normal ladder is erected on the workbench, and construction materials and equipment and workers can be placed on the workbench for construction. It is configured as follows. Then, a mode in which the whole is folded and set to make it compact and compact for convenience of transportation and storage, and a mode in which an elevating ladder leaning against the work table and a fixing means for the work table are provided are adopted.

[0008]

In the aerial work apparatus of the present invention having the above-described structure, the workbench can be leaned against the building to be constructed and a workbench having a required height can be set. Therefore, considering the stability of the leaning posture, The workbench can be set to the required height safely, and there is no need for a conventional work platform for aerial work or temporary scaffolding, and quick and easy work can be performed as needed. Further, the one having the above-mentioned fixing means further improves the safety of the workbench.

Since the structure is simple and it is easy to transport, it can be freely set and used even in a narrow place where a four-wheeled vehicle cannot enter or stop, or in a place where the work environment is bad, such as on a highly uneven ground or on a slope. can do.

[0010]

Embodiments will be described in detail below based on embodiments. That is, referring to FIG. 1, FIG. 2 and FIG. 3 showing an embodiment of the present invention, a work apparatus 1 for high places of the present invention is configured such that a pair of two telescopic bars are arranged in parallel with a space S between important points. The main part is composed of a workbench leg 2 composed of 4A and 4B and a workbench 3 supported on the upper end of the workbench leg 2, and the workbench leg 2 is set on the outer wall 11 or the like of the building to be constructed while leaning against it. It has a structure in which an ordinary elevating ladder 10 is leaned against a workbench 3 to elevate and lower, and a main member is made of an aluminum material and is lightweight. Reference numeral 28 in the figure denotes a reinforcing stay for the expansion bars 4A and 4B.

Specifically, the telescopic bars 4A and 4 of the workbench leg 2
B is a joint bar in which the lower bar 5 and the upper bar 6 are combined, and like a known expansion ladder, the upper bar 6 is slidably inserted in a hollow portion provided in the longitudinal direction of the lower bar 5 to be assembled, By mounting the lock pin 18, the connecting length of the lower bar 5 and the upper bar 6 can be locked to a required length, and the height of the workbench 3 can be set to the required height H.
And, this workbench leg 2 has a ground base 8 at its lower end,
The workbench 3 is hingedly supported on a support point 7 at the upper end.

On the other hand, the workbench 3 is a space in which construction equipment 17 such as a compressor used for the construction work, construction materials such as window members, cement and paint, and a required number of workers can ride and work. And a rectangular base plate 12 having mechanical strength. The base plate 12 has a safety fence 13 removably installed around it, and a connecting arm 14 extending in a hinged connection with the upper bar 6 and a supporting point 7. By workbench leg 2
Is supported and supported on the upper end of the work table, and when the work table legs 2 are leaned against the outer wall 11, the work table 3 has a substantially horizontal posture. Furthermore, a part of the front edge of the work table 3 is a safety fence. It is formed on a ladder leaning portion 15 not provided with 13, and a normal ladder 10 which is a separate body is leaned against the ladder leaning portion 15 and is set to the workbench 3.

And, in the case of this embodiment (see FIGS. 2 and 3)
The lower end of the connecting arm 14 is hingedly connected to the upper bar 6, and the upper end of the connecting arm 14 is configured to be connectable / separable from the workbench 3.
Set holes 16 are continuously provided in the longitudinal direction at a fine pitch, and by connecting the work holes 3 to the work table 3 by selecting the set holes 16, the work table legs 2 are leaned against the wall portion 11 of the work table 3. A horizontal posture is secured. And bearing point 7
A rubber elastic member having an annular shape and bulging outward is attached to the outer peripheral surface of the work table leg 2 and the outer wall 11 of the elastic member.
It is the "lean point 9" when leaning against.

When the work apparatus 1 at a high place is not used, the workbench leg 3 is shortened, the workbench 3 and the connecting arm 14 are disconnected, and the workbench 3 is rotated about the support point 7. Then, the workbench leg 2 is superposed on the workbench 2, folded and set, the safety fence 13 is removed, and the workbench 2 is set in a compact size so that it can be transported or stored.

The aerial work apparatus 1 according to the embodiment shown in FIG. 1 has the above-mentioned function, and the workbench 3 can be set to a height at which a normal retractable ladder can be leaned against. Therefore, work in high places with a height of about 2 to 3 floors in a general building can be easily set outside the building to be worked, and work can be performed quickly and efficiently at low cost. Elevated work platforms and scaffolding for construction are superfluous.

Further, even in a narrow place where a conventional work vehicle for a four-wheeled vehicle at a high place cannot enter or set up, or in a construction site under adverse conditions such as uneven or sloping ground, it is only possible to set the work platform leg 2 and the ladder 10 to lean against each other. In this case, it is possible to carry in the folded state, assemble and set it, and immediately use it, and it is possible to efficiently carry out construction under such adverse conditions at low cost.

Next, another embodiment of the present invention will be described with reference to FIG. That is, in the same thing as the working platform legs 2 and the working platform 3 in the above-mentioned embodiment, the one in this working example is
A connecting and fixing mechanism including a bracket arm 23 that detachably connects and fixes the ladder 10 leaning against the work table 3 and the work table 3 is provided.

More specifically, the back side of the workbench 3 and the vertical frame 22 of the ladder 10 are detachably connected by a bracket arm 23, and the upper end of the bracket arm 23 is provided on the back side of the base plate 12 so that It has a structure in which it can be set and fixed to an arbitrary point of the attachment part 24 having a required length in the left-right direction of the arrow D shown in the drawing, and the lower end of the bracket arm 23 is a mounting hole continuously provided in the longitudinal direction of the bracket arm 23 at a fine pitch. 25 is selected, and the vertical frame 2 is formed by the "bolt connecting body 26" that penetrates and connects with the hollow portion of the foot rail 21 of the ladder 10.
It is designed to be clamped and fixed to the outside of 2.

In the embodiment of FIG. 4 described above, the ladder 10 leaning against the workbench 3 is mechanically fixed by the connecting and fixing mechanism, so that the ladder 10 also functions as a support leg of the workbench 3. The stability of the workbench 3 is further improved.

The aerial work apparatus of the present invention is not limited to the above-mentioned embodiment, and is used for construction work inside a building or applied to aerial work of a structure other than a building. Is equipped with a spike pin to prevent slipping of the ground base 8, or is provided with safety measures such as a weight for preventing movement of the ground base 8, and the workbench 3 and workbench leg 2 can be assembled and disassembled. There is something to do.

[0021]

As described above, the aerial work apparatus of the present invention enables quick and efficient aerial work in a construction site where the conventional aerial work vehicle cannot enter or set in a tight environment. At the same time, conventional temporary scaffolding for construction is no longer necessary, and work in high places with a height of about 2 to 3 floors of a normal building is
There is a practical effect of achieving high efficiency in a short period of time and at low cost.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an aerial work apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the working device for high places of FIG. 1 in use.

3A and 3B show the high-altitude work apparatus of FIG. 1 embodiment, in which FIG. 3A is a side view with the workbench legs reduced, and FIG. 3B is a front view with the workbench legs reduced.

FIG. 4 shows an aerial work apparatus according to another embodiment of the present invention,
(A) is a perspective view of the connecting portion of the workbench and the ladder, (B)
Is a side view of the connecting portion, and (C) is a partial perspective view of the connecting portion.

FIG. 5 is an overall perspective view of a conventional aerial work vehicle.

[Explanation of symbols]

 1 High-altitude work device 2 Work table leg 3 Work table 4A, 4B Telescopic bar 5 Lower bar 6 Upper bar 7 Support point 8 Grounding base 9 Standing point 10 Ladder 11 Outer wall 12 Safety plate 14 Connecting arm 15 Ladder stand 16 Set hole 17 Construction equipment 18 Lock pin 21 Ladder foot bar 22 Ladder vertical frame 23 Bracket arm 24 Attachment part 25 Mounting hole 26 Bolt connection body 30 Conventional aerial work vehicle S Interval

Claims (3)

[Claims] 1. A work platform leg, which is arranged side by side with a required space, is composed of a telescopic bar that can be telescopically set, has a point for leaning against a building or the like at the top, and has a lower end as a grounding base. An aerial work apparatus comprising a work table provided at an upper end of the work table leg, and the work table having a structure in which a separate lifting ladder can be leaned against. 2. An aerial work apparatus according to claim 1, further comprising a lifting ladder leaning against a workbench and a mechanism for connecting and fixing the workbench. 3. The workbench is provided with a detachable safety fence, and the workbench and the workbench leg are connected by a hinge so that the workbench can be folded and set on the workbench leg side.
Alternatively, the aerial work apparatus according to claim 2.