JPH01256492A - Dusting device for moving stairway - Google Patents

Abstract

PURPOSE:To shorten a gap of a linear motor as well as to aim at the promotion of efficiency and miniaturization by attaching a dust cleaning brush, wider than width of a primary core, to a secondary conductor of the linear motor driving stairs of an escalator. CONSTITUTION:Each of stairs 1 of an escalator is driven by a linear motor body 7 and a secondary conductor 8. A cleaning brush 13, whose width is wider than that of a primary core built in the linear motor body 7, is attached to the secondary conductor 5 of the secondary core 8, and dust 11 being dropped from a gap surface 12 of each step 1 is cleaned up. With this cleaning, the gap surface of the linear motor and the secondary conductor are no longer damaged, while gap length can be made shorter, thus efficiency of the linear motor is improved.

Description

Detailed Description of the Invention (Industrial Field of Application) When a moving road is driven by a linear motor, this invention penetrates and accumulates on the gap surface of the linear Tanabata between the linear motor body and the secondary conductor. The moving passage is covered with a dust removal device for removing the dust 1~.

(Prior art) As a conventional moving passage (for example, an escalator is
The configuration is as shown in the figure. That is,
In FIG. 5, a step 1, which is a moving body, is connected to, for example, a chain 2 in an endless manner. The step 1 is supported by a frame 4 by guide rollers 3 provided before and after the step ``1''.

A secondary conductor 5 of a linear motor called an 11-side linear Tanabata is installed between the front and rear guide rollers 3, and the secondary conductor 5 connects to the guide rollers 4* of each of the front and rear guide rollers 3. The linear motor main body 7 is firmly fixed to the step 1 on the outward journey and after 111i to the step 1. The secondary conductors 5 are distributed and arranged in ten straight lines and fixed to the frame 4.

As shown in FIG.
Grooves 9 bored at appropriate intervals in the secondary core 8 and its primary core 8
It is composed of a primary coil 10 disposed at a. Further, the linear motor main body 7 faces the secondary conductor 5 through a gap a.

Since the escalator as a moving road is constructed in this way, when a three-phase alternating current is applied to the primary coil 10 buried in the tPf 9 of the primary iron core 8, a moving magnetic field is generated, and the secondary conductor 5 Eddy currents flow in the

As a result, due to the interaction between this eddy current and the magnetic field, 2
A thrust is generated in the secondary conductor 5 in the direction in which the moving magnetic field acts. When a thrust J is generated in the secondary conductor 5, the step 1 is driven.

(Issues that the invention attempts to resolve in VR) By the way, J,
In the escalator, which serves as a moving road, the linear motor main body 7 has no choice but to move in a limited space where the secondary conductor 5 is lined up in a straight line. Therefore, there has been a demand for the linear motor main body 7 to be smaller and lighter.

Therefore, the gap a between the linear motor 7 and the secondary conductor 5
It was essential to make it as small as possible to improve its characteristics, but when the Gitotsubu a was made small, dust such as sand, cotton waste, and oil was removed from between the front and rear steps 1.・
11 enters the gap surface 1 of the linear motor main body 7, the secondary conductor 5 fixed to the step 1 which is a moving body
2 When passing through the soil, there was a possibility that the dust 11 would be eaten up and damage the gap surface 120 and the secondary conductor 5. Due to this restriction, it is not possible to reduce the length of the gap a, resulting in a problem that the efficiency of the linear motor becomes extremely poor.

The purpose of this invention is to improve the efficiency of the linear motor without damaging the gear Vl surface of the linear motor or the secondary conductor, in order to improve the problem of 2. An object of the present invention is to provide a device for removing gas from a passageway.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the L2 objective, the present invention provides a system that connects steps, which are a plurality of movable bodies connected in a DMi-free manner, to the front and rear of each step. The secondary conductor of the linear motor that connects the primary core and the secondary conductor is fixed via a guide roller provided in When the secondary conductor passes through the primary iron core -1-, a width wider than the width of the primary iron core is provided on the secondary conductor in order to remove dust that has entered the gear surface of the linear motor. A dust removal device for moving roads was constructed by installing a dust cleaner hT + shell.

(Function) By adopting this invention, when the secondary conductor of the linear motor, that is, the step, passes over the primary iron core, the A of the linear!-9 main body is removed from between the step and the step. ″17 tup 17
77 Surface 1 Accumulated dust 1- is set at the tip of the secondary conductor (Plζ1st a, dust cleaning with a width wider than the width of the core)
removed by mouth. Therefore, since the linear motor does not damage the secondary conductor due to the -1゛ top surface S'', the gear 17 of the linear motor can be further reduced, and the efficiency of the linear motor) (・It is made smaller and lighter than Miku-1.

(Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a schematic side view of an escalator that implements the present invention and is used as a moving road driven by a near motor, Fig. 2 is a side view of Fig. It is.

In FIGS. 1, 2, and 3, the same parts described in the prior art of FIGS. 6 and 7 are denoted by the same reference numerals, and the general description of the escalator will not be repeated. For the sake of avoidance, I will omit the explanation.

At d3 in Figures 1, 2 and 3, all the secondary conductors 5 fixed to the step 1, which is a moving body, move in the direction of movement (for example, rightward in Figures 1 and 2). , a brush 13 as a cleaning tool has a width wider than the width of the primary core 8 of the linear motor 7.
It is set in the direction perpendicular to the plane (left and right direction at d5 in Fig. 3).

Furthermore, the brushes 13 are provided on the outbound, return and reversal sections without interfering with the step 1 in front of -C.
.

The brush 13 also easily removes sand, cotton, dirt, oil, and other glues that have entered the gap surface 12 of the near motor body 7 between the steps 1 and 1. The surface 12 can be removed on the outside as shown in Figure 3.
It is provided so as to be in contact with the gear V7 tap surface 12 of the linear motor main body 7.

With the above configuration, when the dust 11 enters the gap surface 12-l knee of the near motor main body 7 between the steps 1 and the steps 1, the near motor main body 7
When passing over the gap surface 12 of the secondary conductor 5, for example, the brush 13 provided at the tip in the traveling direction
1 hits and is removed to the outside of the pin 17 surface '120.

Brush 1 is attached to the tip of the secondary conductor 5 in the direction of movement.
3, the dust 11 that has entered can be easily removed, making it possible to reduce the length of the gap 17 a. 2
Dust 11 bites between the secondary conductors 5, and the gap surface 12
Moreover, the efficiency of the linear motor can be improved without damaging the secondary conductor 5.

FIG. 4 shows an alternative embodiment to that shown in FIG. In FIG. 4, parts that are the same as those in the embodiment described in FIGS. 1 to 3 are designated by the same numbers.

A brush 13 is attached to the tip of the secondary conductor 5 fixed to the step 1 which is a moving body (for example, in the direction of movement (rightward in FIG. 4)).
is installed diagonally in the approximate center of the primary core 8 of the linear motor body 7. As a result, the flow of dust 11 that has entered onto the gap surface 12 is improved, and more dust is removed.
-'+1 can be removed. The other configurations and effects are substantially the same as those of the above-described embodiments, so their explanations will be omitted.

In the above embodiment, an escalator was used as an example of a moving path, but the present invention can also be applied to a moving sidewalk that moves horizontally.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, = 7- dust is deposited on the gear top surface between the steps, the near motor body, and the secondary conductor. If dust enters and accumulates, it can be easily removed using a dust cleaning tool installed on the secondary conductor of the linear motor. As a result, the gap surface of the linear motor and the secondary conductor are not disturbed, making it possible to further reduce the gap length, improving the efficiency of the linear motor, and creating a compact and lightweight moving road. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an escalator as a moving road in an embodiment of the present invention, FIG. FIG. 4 is an explanatory diagram showing another embodiment in place of FIG. 2, FIG. 5 is a schematic side view of an escalator used as a conventional moving road, and FIG. 1. Steps 3. Guide rollers 5. Secondary conductor 7. Linear motor main body 8.
Secondary coil 10...Primary coil 11...Go to Das I
12...Gear A7 surface 13...Brush a...Gap

Claims (1)

[Claims] A secondary conductor of a linear motor consisting of a primary iron core and a secondary conductor is fixed to steps, which are a plurality of moving bodies connected in an endless manner, through guide rollers provided before and after each step. On a moving road where steps are driven by the thrust of a linear motor, when the secondary conductor of the linear motor passes over the primary iron core, the secondary conductor is used to remove dust that has entered the gap surface of the linear motor. A dust removal device for a moving road, characterized in that a dust cleaning tool having a width wider than the width of the primary iron core is provided.