JPH0745317B2 - Rust prevention device for man conveyor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a rust preventive device for a man conveyor such as an escalator and a moving walkway, and more particularly to a rust preventive device for a man conveyer suitable for an outdoor device. .

[Prior Art] In recent years, there are many cases where a man conveyor is installed outdoors in a station plaza, a playground, or the like. In such a man conveyor installed outdoors, when it rains, rain directly hangs on the man conveyor. Was occurring.

Next, this will be described by a concrete example.

FIG. 4 is a schematic diagram showing the overall configuration of an escalator currently in use.

In FIG. 4, (1) is a main frame, (2) is a step as means for transporting passengers mounted in the main frame (1), and (3) is drive means for driving the step (2). Is. The driving means (3) is a driving machine (4) such as a motor,
A drive sprocket (5) driven by the drive machine (4), a drive chain (6) hung on the drive sprocket (5) and a driven sprocket (7), and an upper sprocket driven by the driven sprocket (7). (8), a lower sprocket (9), a transport chain (10) wound between the upper sprocket (8) and the lower sprocket (9), and the like. Then, the step (2) is carried by the rotation of the carrying chain (10). In addition, (28) is a floor board of the upper floor or the lower floor of the escalator.

When rainwater enters the main frame (1) of the escalator having the above-mentioned configuration, the rainwater may cause rust on the carrier chain (10) or the like that constitutes the drive means (3), which may hinder the operation of the escalator. is there.

In consideration of such a situation, the Japanese Utility Model Laid-Open No. 53-70094 discloses a fifth method.
A rust preventive device as shown in the figure has been proposed.

FIG. 5 is a sectional view of an essential part of an escalator having a conventional rust preventive structure. In the figure, the same reference numerals and symbols as those in FIG. 4 indicate the same or corresponding portions as in FIG. 4, and therefore, duplicated description will be omitted here.

In the figure, (11) is a guide rail arranged along the movement path of step (2), and (12) is the transport chain (1).
This is a step wheel that rolls on the guide rail (11) with the rotation of (0). (13) is the carrier chain (10),
A rust preventive cover for covering the guide rail (11) and the step wheel (12) from above, which is a support frame (14), a holding frame (15) and a cover frame (1) with respect to the main frame (1).
6) is installed through.

In the conventional escalator configured as described above, the transport chain (10) is covered with the anticorrosion cover (13), so rainwater and the like are removed by the anticorrosion cover (13).

[Problems to be Solved by the Invention] However, according to the configuration of the conventional escalator described above, since the transport chain (10) and the like need to be covered by the rust preventive cover (13) over substantially the entire length of the escalator, Not only the cover (13) but also a supporting frame (14) for supporting it, a holding frame (15), a cover frame (16), and many other parts are required.

Therefore, the cost of parts and assembling is high, and a large-scale structure change is required when modifying the existing man conveyor to have an anticorrosion function, and the workability is not good.

Then, this invention makes it a subject to provide the rust prevention apparatus of a man conveyor which can prevent rusting of a drive means efficiently by a simple and cheap structure.

[Means for Solving the Problems] A rust preventive device for a passenger conveyor according to the present invention includes a drive means for driving a passenger's transportation means installed in a main frame, and a rust preventive oil for the transportation means during rainfall. It has a rust preventive oil supply means for supplying the driving means to be driven.

[Operation] In the present invention, the rust preventive oil supply means is driven during rainfall, the rust preventive oil is supplied to the drive means, and the rust preventive oil can prevent rainwater from adhering to the drive means.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view showing an oil supply device (21) for supplying lubricating oil to the transport chain (10) of the drive means (3).
FIG. 2 is a partially enlarged sectional view of the floor plate (28) of the escalator shown in FIG. FIG. 3 is a circuit configuration diagram of the oil supply and rust preventive oil control circuit of the escalator according to the embodiment of the present invention. The overall schematic structure of the escalator of one embodiment of the rust preventive device for a passenger conveyor of the present invention is the same as the structure shown in FIG. 4, and the same reference numerals and symbols as in FIG. Since this figure shows the same or corresponding parts as in FIG. 4, duplicate explanations are omitted here.

In FIG. 1, (22) is a lubricating oil tank for storing lubricating oil, and (23) is an anti-permeation rust-preventing oil-storing oil that has the function of invading the bearing portion of the transport chain (10) to remove water. It is a rust oil tank. Further, (24) is a pipe (22a) or a pipe (23) in the lubricating oil tank (22) and the rust preventive oil tank (23).
It is a valve unit connected via a), so that the lubricating oil supplied from the lubricating oil tank (22) is mixed with the penetrating anticorrosion oil supplied from the antirust oil tank (23).
The ratio can be changed.

And (25) is connected to the pipe (24
a pump connected via a), where (26) is the pump (2
A turnout connected to the 5) via a pipe (25a), (27)
Is a plurality of supply pipes connected to the branching device (26). The tips of the supply pipes (27) extend to the drive means (3) such as the transport chain (10). And
The pump (25) supplies lubricating oil or a mixed oil of lubricating oil and rust preventive oil to the drive means (3) such as the transport chain (10) via the branching device (26) and the supply pipe (27). It is installed in.

Further, in FIG. 2, (29) is a support angle for connecting adjacent floor boards (28) to each other and supporting them on the main frame (1),
Reference numeral (30) is a rainwater sensor as a signal generator mounted on the support angle (29) below the gap (28a) formed in the connecting portion of the floor plate (28). As the rainwater sensor (30), for example, a sensor that outputs a detection signal based on a change in electric resistance value due to rainwater, which is put into practical use in a wiper device of an automobile, or a humidity sensor can be used.

FIG. 3 is a circuit configuration diagram of the oil supply and rust preventive oil control circuit of the escalator according to one embodiment of the present invention.

In FIG. 3, (31) is a control device that controls the valve unit (24) and the pump (25) by their outputs, and the rainwater sensor (30) as its input, and (32) is a timer. The control device (31) normally operates so that the timer (32) drives the pump (25) at predetermined time intervals.
Further, the control of the timer (32) is stopped by the operation of the rainwater sensor (30), and only the valve unit (24) and the pump (25) are operated.

The escalator of the present embodiment configured as described above operates as follows.

When it does not rain due to fine weather, etc., the valve unit (24) operates under the control of the control device (31) so that only the lubricating oil tank (22) of the oil supply device (21) communicates with the pump (25). . Then, in this state, based on the time set by the timer (32) in which the pump (25) is connected to the control device (31), for example, 2 to 3 every 20 to 40 hours of operation.
The lubricant oil in the lubricant oil tank (22) is supplied to each part of the drive means (3) such as the transport chain (10) through the supply pipe (27) for about a minute to lubricate it.

On the other hand, when it rains, when the rainwater sensor (30) senses rainwater that has entered through the gap (28a) of the floor plate (28), the detection signal is output to the control device (31). Then, the control device (31) switches the valve unit (24) in response to the signal to make the lubricating oil tank (22) and the rust preventive oil tank (23) communicate with the pump (25), respectively. The operation of the pump (25) is started immediately by disabling the operation of the timer (32). As a result, the rust preventive oil is mixed with the lubricating oil in the valve unit (24), and the mixed oil is pumped by the pump (25) through the supply pipe (27) to each part of the drive means (3) such as the transport chain (10). Is refueled.

As described above, the rust preventive device for a passenger conveyor according to the present embodiment has a transportation means such as the step (2) for transferring the passenger installed in the main frame (1) and a transportation means for transferring the passenger. Drive means (3) including a transfer chain (10) for driving the oil supply means, oil supply means for supplying lubricating oil to the drive means (3) for driving the transfer means, and rust preventive oil for driving the transfer means during rainfall. Drive means (3) for supplying rust preventive oil.

Therefore, during the rain, the lubricating oil prevents rainwater from adhering to the transport chain (10), and part of it adheres to the drive means (3) such as the transport chain (10) that requires anti-rust treatment. However, by the way, even if rainwater enters the bearing portion, it is removed by the permeation action of the rust preventive oil. Therefore, rusting of the transport chain (10) due to rainwater can be efficiently prevented.

Moreover, since the lubricating oil supply device (21) is used and controlled simply based on the signal from the rainwater sensor (30), it has a simple structure. When manufacturing, the cost of parts and assembly can be reduced. Further, even when the existing escalator is provided with anticorrosion treatment, the work can be performed extremely easily.

The present invention is not limited to the configuration of the above embodiment, and can be modified and embodied as described below.

First, in the above-described embodiment, the lubricating oil or the mixed oil is configured to be supplied only to the transport chain (10) of the driving means (3), but the distributor (26) of the oil supply device (21) is used to drive the driving means ( 3) The drive chain (6), each drive sprocket (5), the driven sprocket (7), the upper sprocket (8), the lower sprocket (9), or the supply pipe leading to the step wheel (12) or the like is provided. Thus, it is possible to efficiently prevent rusting of the predetermined driving means (3).

The location of the rainwater sensor (30) is not limited to the floor plate (28) of the above embodiment, and may be anywhere inside or outside the escalator as long as it can detect rain. Further, instead of the rainwater sensor (30), a manual switch may be provided on the operation panel of the escalator so that the administrator operates the switch when it rains.

In addition, the rust preventive structure of the escalator in the above embodiment,
It can be generally used for passenger conveyors including moving sidewalks that carry passengers horizontally.

Further, driving means (3) for driving the carrying means of the above embodiment
The oil supply means for supplying the lubricating oil to the oil supply means and the rust preventive oil supply means for supplying the rust preventive oil to the driving means (3) for driving the conveying means at the time of rainfall store the lubricant oil constituting the oil supply device (21). The lubricating oil tank (22) and the rust preventive oil tank (23) are mixed with the rust preventive oil by the control of the valve unit (24). However, when the present invention is carried out, the drive means (3) is used. The oil supply means for supplying the lubricating oil to and the rust preventive oil supply means for supplying to the drive means (3) may be independently configured, or their control may be time-division control. However, when mixing the rust preventive oil supplied from the rust preventive oil tank (23) with the lubricant oil supplied from the lubricant oil tank (22) as in this embodiment, the lubricating function and the rust preventive function are The efficiency of can be improved.

[Effects of the Invention] As described above, according to the anticorrosion preventive device for a passenger conveyor of the present invention, the driving means for driving the transportation means for transporting the passenger installed in the main frame and the transportation means are provided. It has an oil supply means for supplying lubricating oil to the driving means for driving and a rust preventive oil supply means for supplying rust preventive oil to the drive means for driving the conveying means at the time of rain, and drives the rust preventive oil supply means at the time of rain Then, rust-preventive oil or a mixture of lubricating oil and rust-preventive oil can be supplied to the drive means for driving the transport means for transferring the passenger.

Therefore, it is possible to prevent the lubricating oil or the lubricating oil and the rust preventive oil from adhering to the driving means that requires anticorrosion treatment during rain and the rain water from adhering to the driving means. In addition, even if rainwater intrudes into a part of the driving means, it is removed by the permeation action of the rust preventive oil.

Therefore, the rusting of the driving means can be efficiently prevented with a simple and inexpensive structure.

[Brief description of drawings]

FIG. 1 is a schematic view showing a rust preventive device for an escalator of a rust preventive device for a passenger conveyor according to an embodiment of the present invention, FIG. 2 is a sectional view showing a mounting structure of a rainwater sensor in the embodiment, and FIG. FIG. 4 is a circuit diagram of the rust preventive device for an escalator according to the embodiment, FIG. 4 is a schematic diagram showing the entire structure of an embodiment of the present invention and a conventional escalator, and FIG. 5 is a partial sectional view of the escalator showing the conventional rust preventive structure. Is. In the figure, they are 1: main frame, 2: step, 3: driving means, 10: transport chain, 21: oil supply device. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

Claims (1)

[Claims] 1. Lubricating oil is supplied to a transportation means for transporting an occupant installed in a main frame, a driving means for driving the transportation means for transporting the occupant, and a driving means for driving the transportation means. A rust preventive device for a man conveyor, comprising: an oil supply unit; and a rust preventive supply unit that supplies rust preventive oil to a drive unit that drives the transfer unit when it rains.