JPH04179693A - Dust collector for escalator - Google Patents

Abstract

PURPOSE:To efficiently and timely collect accumulated dust by providing a single or a plurality of photoelectric detectors in the bottom of a dust collecting case of an escalator provided in a machine room. CONSTITUTION:A cover 9 for coating a footstep inverting part 8 is provided in a machine room 4, a dust case 10, provided with a dust collecting handle, is provided in a lower end of this cover 9, and a photoelectric switch 12 is provided in a dust reservoir 11 of the case 10. At this time, a plurality of photoelectric switches are arranged in the periphery of a mountain of dust 7 considered generated by accumulating the dust. The cover 9 and the dust case 10 are mounted to a support 13 in an escalator side, and the dust, released when a footstep is inverted, is interrupted by the cover so as to drop down all in the dust case 10. Then, the dust, accumulated in the dust reservoir 11 of the dust case 10, is detected accumulated by intercepting light in a detection range of the photoelectric switch. A signal of this switch is received so as to output a display and an alarm of an accumulated condition of the dust to such as inside the machine room or an escalator control room and so on.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a dust collector for an escalator.

(Prior Art) A conventional escalator will be explained with reference to FIGS. 5 and 6.

The escalator 1 has a step 3 attached to a pair of left and right step chains 2 connected in an endless manner over its entire length, and the step chain 2 is connected to a driving wheel 5 and a driven wheel 6 provided in an upper and lower machine room 4.4. It is driven by winding around the train to transport passengers on the steps.

For this reason, a lot of garbage 7 falls on the steps where passengers are being mailed. This garbage 7 remains on the steps on the outbound side,
When the steps are reversed to the return side in the upper or lower machine room 4.4, they are thrown off the steps, fall, and accumulate at the bottom of the machine room.

As described above, the machine room of the escalator becomes dirty with dirt, which causes the following problems.

1) Dust may enter the equipment in the machine room, potentially shortening the life of the equipment.

2) There is a risk of a fire if a lit cigarette butt gets into an area where garbage has accumulated.

3) It is unsanitary and not good for the health of escalator maintenance personnel.

4) It is necessary to periodically clean accumulated garbage, but this requires additional maintenance time. Particularly in recent years, as the operating time of escalators has become longer, the escalator maintenance time has tended to become shorter, so this increase in incidental work becomes a problem.

5) Cleaning work is a job that people rather dislike, and workers are paid high wages for such work.

This results in an increase in maintenance costs.

To solve these problems, several dust collection methods have been proposed and implemented to efficiently collect dust in the escalator machine room.

One of them is to place a dust collection box below the reversing part of the steps in the machine room, and this dust collection box catches the dust that falls when the steps are reversed, and when a lot of dust accumulates in the box, the garbage can be thrown away. It is something.

(Problem to be solved by the invention) However, the dust collectors that have been installed at all times do not realize that they have accumulated dust, so they are left in unsanitary and unfavorable conditions for fire prevention due to the reasons mentioned above. There are many.

The present invention solves these problems and provides a method for efficiently and timely removing accumulated dust.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides an inverted part of a step in a machine room of an escalator.
A cover is attached that covers the outer circumferential raceway surface of the reversing part and has a dust collection box below it, and multiple reflective photoelectric switches are installed to detect the area at the bottom of the dust collection box. Detects the amount of garbage.

(Function) The garbage thrown out with the reversal movement of the steps hits the cover and falls downward, collecting in the dust collection box of the dust collection box. When a certain amount is reached, one or more photoelectric switches output an output, and this signal is used. The system displays or warns the status of garbage accumulation and instructs maintenance work.

(Example) The present invention will be explained based on the embodiment shown in FIG.

A cover 9 is provided to cover a step reversing part 8 in a machine room 4, and a dust box 10 with a handle for storing dirt is provided at the lower end of the cover 9. A photoelectric switch (preferably a reflective type) 12 is provided in the dust reservoir 11 of the dust box 10. If only 1.2 of the photoelectric switches 12 are installed in the dust trap, it will not be possible to distinguish between a large amount of dust and a case where a large amount of dust has accumulated if the photoelectric switch is accidentally covered with dust. A plurality of photoelectric switches are placed around the pile of garbage 7 that is thought to be generated by the process.

The cover 9 and the dust box 10 are attached to the support 13 on the escalator side.
The cover is attached to the cover so that the dust released when the steps are reversed is blocked by the cover and all falls into the dust box 10. The accumulation of dust in the dust reservoir 11 of the dust 1i10 is detected by blocking light within the detection range of this photoelectric switch.

Upon receiving this detection signal, the status of garbage accumulation is displayed in the machine room or escalator control room, etc.5. Make sure to issue a warning.

Since a plurality of photoelectric switches are arranged as described above, when all or some of these switches react (detecting dust), it is assumed that dust has accumulated and the detection of dust is displayed.

To detect trash, the shape of the trash pile and the amount of accumulation are known in advance, and the placement of the photoelectric switch is determined based on this information.

With this type of dust collector, the dust that is scattered in the machine room when the steps are reversed can be collected in a designated place, and if it has accumulated, it will be displayed, which is good for both hygiene and disaster prevention. .

Furthermore, collected garbage can be easily thrown away, and the dust collection box can be easily restored.

It goes without saying that the present invention can also be applied to a moving walkway, etc., which has the same structure and function as an escalator, in which pallets corresponding to steps circulate and are reversed in a machine room.

〔Effect of the invention〕

According to the present invention, garbage in the escalator machine room can be efficiently cleaned at all times, and an escalator that is safer in terms of maintenance and disaster prevention can be obtained.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of an escalator according to the present invention, and FIG.
The figure is a perspective view of a dust collection box according to the present invention, FIG. 3 is a plan view of FIG. 2, FIG. 4 is a side view of FIG. 3, FIG. 5 is a schematic diagram of a conventional escalator, and FIG. 5 is a partially detailed view of FIG. 5; FIG. 1...-Escalator 4... Machine room 10/Storage box

Claims (1)

[Scope of Claim] A dust collection device for an escalator, characterized in that, in a dust collection box for an escalator provided in a machine room, one or more photoelectric detectors are provided at the bottom of the dust collection box.