JPH0530091U - Aerial work equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To exert work auxiliary functions such as supporting the weight of materials and assisting the installation work. [Structure] A workbench 5 on which a worker or the like can be mounted is provided on an elevating arm 4 provided on a base 1, a lift device 9 capable of ascending and descending is provided on the workbench 5, and a work is performed on an upper end portion of the lift device 9. A table 15 is provided and configured.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an aerial work apparatus that carries an aerial work by placing an operator on a workbench that moves up and down.

[0002]

[Prior Art]

 Conventional work equipment for aerial work consists of a vertical telescopic column as a lifting arm or a boom that can be extended and retracted, and a workbench on which workers and materials are placed is attached.

[0003]

[Problems to be solved by the device]

 However, in this conventional device, there is only a transportation function that moves the workbench to the work position.For example, when performing heavy work such as installation of an air conditioning duct or piping, the work of supporting the work weight by supporting the material weight. It had no auxiliary function.

For this reason, the actual work must be performed only by human power, and it is of low value as a high-altitude work apparatus.

Therefore, the present invention provides an aerial work apparatus having a work assisting function of supporting the weight of a material and assisting its mounting work.

[0006]

[Means for Solving the Problems]

 The invention according to claim 1 is an aerial work apparatus in which an elevating arm is provided on a self-propelled base, and a work table on which an operator or the like can be mounted is provided on the elevating arm. Is provided, and a work table is provided at the upper end of the lift device.

According to a second aspect of the present invention, in the configuration of the first aspect, the lift device is provided outside the workbench.

According to a third aspect of the present invention, in the structure of the first aspect, the lift device is provided inside the workbench.

According to a fourth aspect of the present invention, in the configuration according to any one of the first to third aspects, the work table is attached to the upper end portion of the lift device so as to be rotatable around the vertical axis.

According to a fifth aspect of the present invention, in the structure according to any one of the first to fourth aspects, the work table is attached to the upper end portion of the lift device so as to be horizontally movable within a certain range.

[0011]

[Action]

 According to the above configuration, the weight of the material can be supported by the work table that is moved up and down, and the position of the material can be adjusted by moving it up and down, which is a great help in the work of installing the material.

In this case, according to the second aspect of the invention, since the lift device is provided outside the workbench, the space of the workbench is not eroded by the lift device. Therefore, the workbench can be made smaller.

On the other hand, according to the structure of claim 3, since the lift device is provided inside the work table, the material on the work table can be operated from around the table, and the workability is further improved. Becomes

Further, according to the structure of claim 4, the function of rotating the work table is further added, and according to the structure of claim 5, the function of horizontally moving the work table is added, so that the positioning of the materials and the like are further facilitated. , The work assistance function will be further enhanced.

[0015]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

First Embodiment (see FIGS. 1 to 3) 1 is a self-propelled base, which is constructed by a crawler-type traveling carriage 2 on which an upper swing body 3 is swingably mounted.

A telescopic boom 4 as an ascending / descending arm is movably mounted on the upper revolving structure 3 of the base 1, and a workbench 5 on which a worker and materials are placed is attached to the tip of the boom 4. The workbench 5 moves to the work position due to the expansion and contraction of the boom 4 and the undulating motion. In FIG. 1, reference numeral 6 is a cylinder that hoists the boom 4.

It should be noted that this embodiment exemplifies an aerial work apparatus in which each operation such as traveling, turning, boom extension / contraction, and hoisting and the like is operated by a remote control without the driver getting on the base 1. ..

As shown in FIG. 2, the workbench 5 is attached to the boom tip end portion so as to be rotatable around a horizontal shaft 7, and is held in a horizontal state by a posture adjusting cylinder 8.

A lift device 9 is vertically provided on the outer side surface of the work table 5 on the side where the boom 4 is attached (may be another side).

The lift device 9 includes an outer cylinder 10, an inner cylinder 11 slidably fitted in the outer cylinder 10 in a telescopic manner, and a cylinder 12 for sliding the inner cylinder 11 in a vertical direction. It is configured to be extendable and contractible, and the outer cylinder 10 is fixed to the work table 5 by a mounting frame 13.

A table support base 14 having a quadrangular shape in plan view (a circular shape is also acceptable) is fixed to the upper end of the inner cylinder 11 of the lift device 9, and a work of substantially the same size and the like is mounted on the table support base 14. A table (hereinafter, simply referred to as a table) 15 is placed.

Here, on the upper surface of the table support base 14, a plurality of balls 17 that are rotatably held by ball seats 16 are provided intermittently on the same circumference centered on the center of the support base. The table 15 is rotatably supported by the balls 17 around the vertical axis X.

A round hole 18 is provided in the center of the table support base 14, and a vertical shaft 19 is provided on the lower surface of the center of the table 15 so as to fit in the round hole 18 in a loosely inserted state. The table 15 can be moved in each horizontal direction within a range in which the vertical shaft 18 can move in the round hole 18.

In this aerial work apparatus, since the table 15 which can be moved up and down by the lift device 9 is provided on the outer side surface of the workbench 5 as described above, for example, an air conditioning duct is installed in a high place such as a ceiling. During the installation work, as shown by the phantom line in FIG. 1, the duct 15 can be positioned and attached while the duct 15 partially supports the weight of the duct.

That is, since the lifting table 15 can be provided with a work assisting function, particularly heavy work can be performed easily and efficiently.

Further, since the table 15 is rotatable about the vertical axis X, the orientation of the duct D can be easily adjusted in the example of the imaginary line in FIG. Further, since the table 15 can be moved horizontally within a certain range, the movement of the duct D in the length direction and the alignment work can be facilitated.

On the other hand, since the lift device 9 is provided outside the work fifth, the space of the workbench 5 is not eroded by the lift device 9. That is, the entire workbench 5 can be used as an activity space for workers, and the workbench 5 can be small.

Second Embodiment (see FIG. 4) Only differences from the first embodiment will be described.

In the first embodiment, although there is an advantage that the space of the workbench 5 is not eroded by the lift device 9, operations such as alignment of the duct D can be performed only from one side of the work table 15. There is.

Therefore, in the second embodiment, the lift device 9 provided with the work table 15 at the upper end is erected at the inner center portion of the work table 5 (it may be a position displaced from the center portion in the front-rear direction or in the left-right direction). There is.

In this way, the duct D can be aligned and attached from around the work table 15 (from four sides when provided in the central portion), so that workability is further improved.

Other Embodiments (1) The work table 15 may be a flat plate capable of placing and supporting an article as in the above embodiment, but one having another function, for example, a function of clamping an article. May be

(2) Although the telescopic boom 4 is used as the elevating arm in the above embodiment, an extendable vertical column may be used instead.

(3) Instead of the cylinder 12 described in the above embodiment, a so-called ball screw mechanism that obtains a stroke motion by rotating one of the male and female screw members with a motor may be used as the elevating and lowering drive unit of the lift device 9. Good.

(4) In the above-described embodiment, the work table 15 is configured to be rotatable about the vertical axis and horizontally movable. However, a configuration is provided in which only one function of rotation and horizontal movement is added, or neither function is added. Even in such a case, the basic purpose of the present invention can be achieved.

[0037]

[Effect of the device]

 As described above, according to the present invention, since the lifting device capable of raising and lowering is provided on the side surface of the work table and the work table is provided at the upper end of the lifting device, the lifting work table supports the weight of the material and The position can be adjusted by moving up and down. For this reason, it is a great help especially for heavy work such as installation of an air conditioning duct, and the work can be labor-saving and efficient.

In this case, according to the invention of claim 2, since the lift device is provided outside the workbench, the space of the workbench is not eroded by the lift device. Therefore, the workbench can be made smaller.

On the other hand, according to the invention of claim 3, since the lift device is provided inside the work table, the material on the work table can be operated from around the same table, and the workability is further improved. Becomes

Further, according to the invention of claim 4, the function of rotating the work table is added, and according to the invention of claim 5, the function of horizontally moving the work table is added, which makes it easier to position the materials. The work assistance function can be further enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is an enlarged side view of the same portion.

FIG. 3 is a plan view of FIG.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 4 Boom as an ascending / descending arm 5 Working table 9 Lifting device 10 Outer cylinder constituting the lifting machine 11 Same inner cylinder 14 Table support stand 15 Working table

Claims (5)

[Scope of utility model registration request] 1. A high-altitude work apparatus in which a self-propelled base is provided with an elevating arm, and the elevating arm is provided with a work table on which a worker or the like can be mounted, respectively. And a work table provided at the upper end of the lift device. 2. The aerial work apparatus according to claim 1, wherein the lift device is provided outside the workbench. 3. The aerial work apparatus according to claim 1, wherein the lift device is provided inside the workbench. 4. An aerial work apparatus according to claim 1, wherein the work table is attached to an upper end portion of the lift device so as to be rotatable about a vertical axis. 5. The high-altitude work apparatus according to claim 1, wherein the work table is attached to the upper end portion of the lift device so as to be horizontally movable within a certain range.