JP4985363B2 - Automatic refueling system for passenger conveyors - Google Patents

Description

  The present invention relates to an automatic oil supply device for a passenger conveyor that can be expected to have a life extension effect of a step chain such as an escalator installed outdoors.

  Conventionally, in an automatic lubrication device for outdoor escalators that automatically lubricate chains, etc., a raindrop sensor or an oil pan float switch is provided on or around the escalator body, in addition to normal automatic lubrication operations. A device that can automatically supply oil by output is known (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-76481

  In conventional outdoor escalator automatic lubricators, rain is detected and additional oil is added to the chain to replenish the spilled oil due to rainwater, so oil that has been additionally lubricated flows out together with rainwater due to rain. There is a problem that it is not efficient and requires extra oil.

  This invention was made to solve the problems as described above, and when the rain sensor installed on the passenger conveyor detects rain, the automatic blower device is activated to blow off moisture and dust attached to the chain. An automatic oil supply device for a passenger conveyor is provided in which the automatic blower device is stopped after a certain period of time, and then the chain is supplied with an automatic oil supply device.

  In the automatic refueling device for a passenger conveyor according to the present invention, installed outdoors, a passenger conveyor provided with chains such as a step chain, a drive chain and a handrail drive chain, and installed outside the passenger conveyor to detect rain When the rain sensor detects rain after it is installed in the passenger conveyor and is activated or stopped, it is automatically activated and the chain Automatic blower device configured to blow off moisture adhering to the blower, and automatic oil supply device installed in the passenger conveyor and automatically operated after stopping the automatic blower device to supply lubricating oil to the chains It is equipped with.

  In addition, a passenger conveyor installed outdoors and provided with chains such as a step chain, a drive chain and a handrail drive chain, a rain sensor installed outside the passenger conveyor for detecting rainfall and detecting rain, and passengers When the rain sensor detects rain after the passenger conveyor that is installed in the conveyor and the passenger conveyor is operating or stopped is activated, the blower blows away moisture adhering to the chains. The automatic blower device constructed in the above, the drip-proof cover provided on the ceiling surface of the automatic blower device, installed in the passenger conveyor, automatically operated after the automatic blower device stops, and lubricates the chains Automatic refueling device.

  In addition, the rain sensor can distinguish between rain and light rain by a delay circuit.

  Further, when the rain sensor detects rain during the operation of the automatic blower device and the automatic oil supply device, the operation of the automatic blower device and the automatic oil supply device is stopped.

  In addition, if the automatic blower device and the automatic oil supply device operate during operation of the passenger conveyor, the operation of the automatic blower device and automatic oil supply device will be stopped even if the rain sensor detects rain during the operation of the passenger conveyor. To do.

  The automatic blower device is also connected to the blower branch pipe connected to the air outlet of the device, a pair of left and right flexible hoses connected to the branch pipe, and the jet connected to the tip of the flexible hose to eject the blower to the chains. And a nozzle.

  Further, the automatic fueling apparatus has a large capacity tank of 10 liters or more, and a pulling handle is provided on the upper part.

  According to the present invention, when the rain sensor installed on the passenger conveyor detects that the rain has risen, the automatic blower device is activated to blow off moisture and dust adhering to the chain, and after a certain period of time, the automatic blower device is stopped, and then automatic lubrication Since the chain is lubricated by the device, the lubricated lubricating oil is not washed away in the rain, which has the effect of extending the life of the step chain.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing a main part structure of an automatic fueling device for a passenger conveyor according to Embodiment 1 of the present invention, and FIG. FIG. 3 is an enlarged perspective view showing the structure of the automatic blower device, FIG. 4 is a perspective view showing the structure of the drip-proof cover of the automatic blower device, and FIG. 5 is a jet of the tip of the automatic blower device. The principal part perspective view which shows the arrangement structure of a nozzle and a step chain, FIG. 6 is a flowchart for demonstrating control operation of the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention.

  In FIG. 1 to FIG. 5, passenger conveyors such as escalators that are installed outdoors include a truss 1, an inner plate 2, a moving handrail 3 that moves on the inner plate along a guide rail, and an inner plate 2. , A chain 4 connected to a plurality of stages 4, a chain sprocket 6 that drives the chain 5, a drive chain 7 that drives the chain sprocket, and a man conveyor that drives the drive chain Drive rail 8, a movable handrail chain 9 for driving the movable handrail 3, a drip-proof control panel 10, and a rain sensor (Fig. Not shown). And a passenger conveyor is provided with the step chain 5, the drive chain 7, and the moving handrail chain 9 which are the chain parts which need to supply lubricating oil for every fixed time. When the operation time of the passenger conveyor has passed about 100 hours, the automatic lubrication device 11 automatically lubricates the step chain 5, the drive chain 7, and the moving handrail chain 9 which are the chain portions. The automatic oil supply device 11 has been conventionally an automatic oil supply device composed of a relatively small capacity 3 liter tank. In the present invention, however, the automatic oil supply device 11 is relatively large in order to improve the workability of the inspection and tank supply of the oil supply device. An automatic oiling device 11 with a humidity sensor consisting of a 12 liter tank with a capacity is installed. The automatic fueling device 11 has a drip-proof structure by providing a drip-proof cover on the ceiling surface, and has handles 12 on both upper sides so that the device can be easily lifted. When the operation time of the passenger conveyor elapses, for example, several hundred hours, the automatic fueling device 11 starts refueling by the oil pump, and has passed a scheduled time until the longest step chain 5 makes at least one round, for example, about 90 seconds. However, in the passenger conveyor installed outdoors, the life of the step chain 5 is remarkably shortened. The lubricating oil to be supplied is No. 54 oil (manufactured by Nippon Oil Co., Ltd.), which has excellent permeability from conventional No. 54 oil (diamond chain oil manufactured by Shin Nippon Oil Co., Ltd., kinematic viscosity 80 cst (40 ° C)). Switch to diamond chain oil, kinematic viscosity 150 cst (40 ° C.). Since this No. 150 oil has high viscosity and good permeability and is not easily washed away even when it is poured with water, it has been confirmed that the oil remains inside the pin even when the chain is poured with water. Further, the rain sensor is attached to the outside between the passenger conveyor and the building in the lower horizontal portion of the passenger conveyor, for example, and detects the rain and reliably detects the end of the rain (after the rain) by the delay circuit. The delay circuit also reliably detects the end of rain (after rain) and weak rain by providing an interval of 2 minutes. When this rain sensor detects rain, even if additional lubrication is performed in addition to normal lubrication, the lubricated lubricating oil is washed away into the rain, and the effect of extending the chain life cannot be expected. there were.

  Therefore, in the present invention, an automatic blower device 13 is provided in addition to the automatic oil supply device 11. A drip-proof cover 14 is attached to the ceiling surface portion of the automatic blower device 13 so as not to be affected by rain. The automatic blower device 13 includes a blower branch pipe 15 connected to the blower outlet of the device, a pair of left and right flexible hoses 16 connected to the blower branch pipe 15 and extended to the vicinity of the step chain 5, and each flexible hose 16. A flat-shaped injection nozzle 17 connected to the tip of the hose 16 is provided. The flat-shaped injection nozzle 17 becomes thinner as it goes to the tip and is spread outward, and its plan view has a triangular trapezoidal shape and its side view has a sharp shape. The front end opening of the injection nozzle 17 is arranged obliquely at an angle of 45 ° from the upper side to the lower side and toward the traveling direction on the return path side of the step chain 5, and its lateral width is equal to the width of the step chain 5. Alternatively, it is configured to be slightly larger. The reason is that about 15m / sec blower ejected from the tip opening of the injection nozzle 17 enters from the upper side of the chain and goes downward, so that the force to push out moisture and dust works extremely effectively. Because it is. The tip opening of the injection nozzle 17 may be disposed on the return path side of the step chain 5 so as to be directed downward from above and orthogonal to the traveling direction. Further, one injection nozzle 17 is installed at one position on the return side of the step chain 5, but a plurality of injection nozzles 17 may be installed at a plurality of positions on the return side of the step chain 5, or the drive chain 7 and the moving handrail. Of course, it may be installed in the chain 9.

If it is raining while the passenger conveyor is stopped and raining before the passenger conveyor is started, the automatic blower device 13 is operated immediately after the passenger conveyor is started to remove moisture and dust adhering to the step chain 5 and the like. The blower of about 15 m / second ejected from the ejection nozzle 17 is efficiently blown away, and the oil permeability during the subsequent automatic refueling is improved and the moisture in the step chain 5 is dried. After a certain time (for example, 2 to 5 minutes), the automatic blower device 13 is automatically stopped, and then the automatic oiling device 11 is operated to supply the stepped chain 5 with fuel for a certain time (for example, 90 to 150 seconds). Do. As a result, the supplied lubricating oil is not washed away in the rain, and the service life of the step chain 5 is extended. Note that neither the automatic blower nor the automatic refueling is performed while the passenger conveyor is stopped.
Also, if it rains during the operating hours of the passenger conveyor, the rain sensor outputs a rain rising signal after raining and operates the automatic blower device 13 to start automatic refueling after the blower stops. Further, if it is raining during operation of the automatic blower device 13 or during refueling by the automatic refueling device 11, the rain sensor detects the rain and stops the operation of the automatic blower device 13 or automatic refueling.
In addition, after the rain is raised and the automatic blower device 13 is operated during the operation of the passenger conveyor and the automatic refueling is performed after the blower is stopped, the automatic blower device 13 is no matter how many rains occur during the operation of the passenger conveyor. Do not perform the operation and automatic refueling.
In addition, when it rains and stops many times during operation of the passenger conveyor, for example, if the rain has stopped for 30 minutes, the automatic blower device 13 is operated and the automatic refueling device 11 performs automatic refueling. May be.

Next, the control operation of the automatic oil supply device and the automatic blower device for passenger conveyors such as escalators will be described with reference to FIG.
First, in step S1, the rain sensor is operated, and it is determined by the rain sensor whether it rained while the escalator was stopped (step S2). If it rains while the escalator is stopped in step S2, the rain sensor detects the rain (step S3). Next, it is determined whether or not the rain sensor has detected rain before the escalator is activated, that is, whether or not the end of rain (after rain) has been detected (step S4). The rain sensor detects rain and reliably detects the end of rain (after rain) by a delay circuit. If it is raining before the escalator is activated in step S4 and the escalator is operating (step S5), the escalator is activated (step S6) and immediately thereafter, the automatic blower device 13 is operated (step S7). If the rain sensor detects rain during the operation of the automatic blower device 13 (step S8), the operation is stopped even if the automatic blower device 13 is operating (step S10). If the rain sensor does not detect rain in step S8, the automatic blower device 13 operates until a predetermined operation time elapses (step S9), and then the automatic blower device 13 stops (step S10). Next, it progresses to step S11 and the automatic fueling apparatus 11 is operated. If the rain sensor detects rain during the operation of the automatic fueling device 11 (step S12), the operation is stopped even if the automatic fueling device 11 is operating (step S14). If the rain sensor does not detect rainfall in step S12, the automatic fueling device 11 is operated until a predetermined operation time has elapsed (step S13), and then the automatic fueling device 11 is stopped (step S14). In addition, when it is not raining while the escalator is stopped in step S2 or when it is not raining before the escalator is activated in step S4, the escalator is activated if it is the escalator operating time zone (step S15) ( Step S16). Next, it is determined whether or not the rain sensor has detected rain (step S17). If it is raining, it is determined whether or not the rain sensor has detected the end of rain (after rain) (step S18). If it is raining in step S18, the process proceeds to step S7 after the raining, and the automatic blower operation and the automatic oil supply operation in steps S7 to S14 are performed. Note that the automatic blower device 13 and the automatic oil supply device 11 are configured not to operate while the escalator is stopped. Further, when the automatic blower operation and the automatic refueling operation in steps S7 to S14 are performed during the escalator operation, the automatic blower operation and the automatic refueling operation are not performed no matter how many rains occur during the escalator operation thereafter. Moreover, when it rains or stops many times during the escalator operation, if the rain has stopped for 30 minutes or more, an automatic blower operation and an automatic oil supply operation may be performed. Further, the automatic blower device 13 and the automatic oil supply device 11 may be provided with a manual operation switch (test button) in order to check their operation. Also, an automatic blower operation and an automatic refueling operation may be performed when the escalator is activated every Monday morning. In this case, for example, 30 seconds after taking the escalator activation signal, the day of the week can be changed at any time. Moreover, the operation time of one blower can select 2 minutes, 3 minutes, 5 minutes, etc. Moreover, 90 seconds, 120 seconds, 150 seconds, etc. can be selected as one refueling time.

Embodiment 2. FIG.
FIG. 7 is a side cross-sectional view of the main part showing the installation location of the automatic blower device used in the automatic oil supply device for passenger conveyor in Embodiment 2 of the present invention, and FIG. 8 is the automatic oil supply for passenger conveyor in Embodiment 2 of the present invention. It is a perspective view of the principal part which shows the installation place of the automatic blower apparatus used for an apparatus.

  In the second embodiment, as shown in FIGS. 7 and 8, the automatic blower device 13 is placed in the upper horizontal truss 1 so as to be located in a space between the return-side step 4 and the outward-side step 4. It was installed in. Thereby, it is not necessary to make the installation space of the automatic blower device 13 special, and the automatic blower device 13 can be accommodated compactly.

It is a perspective view which shows the principal part structure of the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention. It is a perspective view of the principal part which shows schematic structure of the automatic blower apparatus used for the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention. It is an expansion perspective view which shows the structure of the automatic blower apparatus used for the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention. It is a perspective view which shows the structure of the drip-proof cover of the automatic blower apparatus used for the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention. It is a principal part perspective view which shows the arrangement structure of the injection nozzle and step chain of the front-end | tip of the automatic blower apparatus used for the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention. It is a flowchart for demonstrating control operation | movement of the automatic oil supply apparatus of the passenger conveyor in Embodiment 1 of this invention. It is side surface sectional drawing of the principal part which shows the installation place of the automatic blower apparatus used for the automatic oil supply apparatus of the passenger conveyor in Embodiment 2 of this invention. It is a perspective view of the principal part which shows the installation place of the automatic blower apparatus used for the automatic oil supply apparatus of the passenger conveyor in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Truss 2 Inner board 3 Moving handrail 4 Step 5 Step chain 6 Chain sprocket 7 Drive chain 8 Drive machine 9 Moving handrail chain 10 Control panel 11 Automatic oil supply device 12 Handle 13 Automatic blower device 14 Drip-proof cover 15 Blower branch pipe 16 Flexible hose 17 Injection nozzle

Claims (8)

A passenger conveyor installed outdoors and provided with chains such as step chains, drive chains and handrail drive chains;
A rain sensor that is installed outside the passenger conveyor and detects rainfall and rain detection;
Moisture that is installed in the passenger conveyor and that is automatically operated when the rain sensor detects the rain rising when the passenger conveyor that is operating or stopped is activated, and is attached to the chains. An automatic blower device configured to blow off the
An automatic refueling device installed in the passenger conveyor, automatically operated after the automatic blower device is stopped, and supplying lubricating oil to the chains;
An automatic refueling device for a passenger conveyor. A passenger conveyor installed outdoors and provided with chains such as step chains, drive chains and handrail drive chains;
A rain sensor that is installed outside the passenger conveyor and detects rainfall and rain detection;
Moisture that is installed in the passenger conveyor and that is automatically operated when the rain sensor detects the rain rising when the passenger conveyor that is operating or stopped is activated, and is attached to the chains. An automatic blower device configured to blow off the
A drip-proof cover provided on the ceiling surface of the automatic blower device;
An automatic refueling device installed in the passenger conveyor, automatically operated after the automatic blower device is stopped, and supplying lubricating oil to the chains;
An automatic refueling device for a passenger conveyor.   The automatic fueling device for a passenger conveyor according to claim 1 or 2, wherein the rain sensitive sensor can distinguish between rain and light rain by a delay circuit.   4. The operation of the automatic blower device and the automatic fueling device is stopped when the rain sensor detects rain during the operation of the automatic blower device and the automatic fueling device. The automatic oiling apparatus of the passenger conveyor in any one of.   If the automatic blower device and the automatic oil supply device operate during operation of the passenger conveyor, the operation of the automatic blower device and the automatic oil supply device is stopped even if the rain sensor detects rain during the operation of the passenger conveyor. The automatic oiling device for a passenger conveyor according to any one of claims 1 to 4, wherein   The automatic blower device includes a blower branch pipe connected to the outlet of the device, a pair of left and right flexible hoses connected to the branch pipe, and a jet connected to the distal end of the flexible hose to eject the blower to the chains. An automatic refueling device for a passenger conveyor according to any one of claims 1 to 5, further comprising a nozzle.   The automatic refueling apparatus has a large-capacity tank of 10 liters or more, and a handle for lifting is provided on an upper portion thereof. The automatic passenger conveyor according to any one of claims 1 to 6, Refueling device.   The passenger according to any one of claims 1 to 6, wherein the automatic blower device is installed in the upper horizontal truss so as to be positioned in a space between the return-side step and the outward-side step. Automatic refueling device for conveyors.

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