JP2002338190A - Device for high lift work for escalator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for high lift work for an escalator that can offer a stable work environment in a short time. SOLUTION: A support bed 2 is fixed on escalator steps 1 via a first support leg 2a and a second support leg 2b. On the support bed 2, a high lift work means 4 having a bed 4a, a hydraulically extendable jack 4b fixed on the bed 4a and a work floor 4c disposed on the jack 4b is removably fixed via fixing members 4g. After an operator gets on the work floor 4c along a ladder 4d, the jack 4 is extended to offer a state for high lift work. Work efficiency and safety can be thus improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator high-altitude work device used for high-altitude work such as maintenance work of a lighting device installed above a step of an escalator.

[0002]

2. Description of the Related Art Generally, a height from a step of an escalator to a lighting device installed above the step is about 6.
It is a relatively high place of 5 m, and it is dangerous to install a stepladder on the steps and replace the lighting or the like of the lighting device. Therefore, the work by the stepladder is prohibited.

For this reason, conventionally, a scaffold was assembled on the step,
This scaffold is used as a working floor.

[0004]

However, the above-mentioned conventional method has a problem that it takes time to assemble and remove a complicated scaffold. In addition, in the case of an escalator having a narrow step width of 800 mm, even when the scaffold is assembled, it is difficult to form a stable scaffold because the width of the scaffold is also reduced according to the width of the step. It is a dangerous thing that tends to roll during work.

The present invention has been made in view of such a situation in the prior art, and an object of the present invention is to provide an apparatus for working at high places of an escalator which can obtain a stable working environment in a short time. .

[0006]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention relates to an escalator for aerial work, which is connected endlessly and has a step moving between entrances and exits. In the apparatus, there is provided a support fixed to the step, on which a base, a jack fixed on the base and extended by hydraulic pressure, and a work floor provided on the jack are provided. The work means is detachably fixed.

According to the present invention configured as described above, for example, when performing a high place work such as a maintenance work of a lighting device installed above the step, the support base is fixed to the step and the support is fixed. The aerial work means is fixed on a table. Next, the worker gets on the work floor and extends the jack to perform work. With this, the installation or removal of the device can be performed in a short time because there is no need for complicated scaffold assembling work and the like as in the past, and the dedicated support base is fixed on the steps,
Since the high work means is arranged on the support table, a stable work environment can be prepared without being affected by the width of the escalator.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an apparatus for working at high places on an escalator according to the present invention.

FIG. 1 is a side view showing an embodiment of an apparatus for working at heights of an escalator according to the present invention, and FIG. 2 is a side view showing a state where the jacks of the apparatus for working at heights shown in FIG. 1 are not extended. 3 is a side view showing a state in which the high work means of the high work apparatus of FIG. 1 is used on a horizontal floor.

As shown in FIG. 1, the escalator high-altitude working device according to the present embodiment includes a support 2 fixed to a step 1 of the escalator, and a high-altitude work detachably fixed on the support 2. Means 4. The support base 2 includes a first support leg 2a fixed to the front wheel shaft 1a of the step 1 and a second support leg 2b mounted on the tread surface 1b of the step 1. The second support leg 2b has a jack portion 2c whose height can be adjusted.

The above-mentioned high-altitude working means 4 includes a base 4a.
A jack 4b fixed on the base 4a and extending by water pressure, and a work floor 4c provided on the jack 4b.
A ladder 4d interposed between the base 4a and the work floor 4c,
A moving wheel 4e provided at a lower portion of the base 4a, a tank 4f for storing water used by the jack 4b,
a to the support 2.
The jack 4b includes a cylinder portion 4b1 and a plunger portion 4b2. The water in the tank 4f is sent to the cylinder portion 4b1 so that the plunger portion 4b2 is formed.
Is extended, and the plunger portion 4b2 is contracted by returning the fed water into the tank 4f.

In this embodiment, for example, when replacing the lighting of the lighting device 5 installed above the step 1, first, as shown in FIG.
And the second support leg 2b is placed on the tread surface 1b of the step 1, and the support 2
Is fixed. Then, the base 4a of the high-altitude working means 4 is fixed on the support 2 via the fixing member 4g. At this time, the plunger portion 4b2 of the jack 4b is in a state of entering the cylinder portion 4b1. Thereafter, the worker gets on the work floor 4c via the ladder 11, and then feeds the water in the tank 4f to the cylinder portion 4b1 to extend the plunger portion 4b2 as shown in FIG. Performs the above operation. When the replacement work of the lighting device of one lighting device 5 is completed and the operator wants to move to the position of another lighting device 5 along the longitudinal direction of the escalator, the worker moves the step 1 while riding on the work floor 4c. This is made possible by doing so.

In the embodiment configured as described above, the apparatus can be installed or removed in a short time because complicated scaffold assembling work as in the related art is not required. Also, a dedicated support 2 is fixed on the steps 1,
Since the high work means 4 is arranged on the support table 2, a stable work environment can be prepared without being affected by the width of the escalator. Furthermore, the high-altitude working means 4 alone does not hinder use, and as a result, as shown in FIG.
By fixing the base 4a via g, and then extending the plunger portion 4b2 of the jack 4b, work at a high place on the horizontal floor surface 6 is also possible, so that the device can be effectively utilized.

[0014]

Since the present invention is constructed as described above, it is possible to install or remove the apparatus in a short time because there is no need for complicated scaffold assembly work or the like as in the prior art. Work efficiency can be improved.

In addition, since a dedicated support is fixed on the steps and the high-altitude working means is arranged on the support, a stable work environment is prepared without being affected by the width of the escalator. Thus, the safety of work at a high place can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of an apparatus for working at a high place of an escalator according to the present invention.

FIG. 2 is a side view showing a state where a jack of the apparatus for aerial work in FIG. 1 is not extended.

FIG. 3 is a side view showing a state in which the aerial work means of the aerial work apparatus of FIG. 1 is used on a horizontal floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Step 2 Support stand 2a 1st support leg 2b 2nd support leg 4 Height working means 4a Base 4b Jack 4c Work floor 4d Ladder 5 Lighting device

Claims (3)

[Claims] An escalator for high-altitude work used for high-altitude work of an escalator provided with a step which is connected endlessly and moves between entrances and exits, wherein a support stand fixed to the step is provided. An escalator characterized by detachably fixing a high-altitude working means having a base, a jack fixed on the base and extending by water pressure, and a work floor provided on the jack, on a support base. Equipment for working at height. 2. The escalator apparatus according to claim 1, wherein the base includes a ladder interposed between the base and the work floor. 3. The support base includes a first support leg fixed to a front wheel axle of the step, and a second support leg mounted on a tread surface of the step. An apparatus for working at heights on an escalator according to claim 1.