JP2006347669A - Handrail temperature adjusting device for passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a handrail temperature adjusting device for a passenger conveyor, capable of adjusting the temperature of a movable handrail to an appropriate temperature without making passengers feel uncomfortable about foreign odor and anxious about ignition even in strong sunshine in midsummer etc., in the passenger conveyor installed outdoors. <P>SOLUTION: This handrail temperature adjusting device for the passenger conveyor is provided with a cooling device 25 sending cooling air over a predetermined range on a back face of the movable handrail 13; a dummy segment 20 comprising the same material as that of the movable handrail 13 and installed in the vicinity of the the movable handrail 13 in the same environment; a temperature detector 21 embedded into the dummy segment 20; and a control means operating the cooling device 25 when the temperature detected by the temperature detector 21 reaches a predetermined operation temperature. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a handrail temperature adjusting device for a passenger conveyor provided on a passenger conveyor such as an escalator installed outdoors or a moving walkway.

  In passenger conveyors installed outdoors, it was often found that when the sunlight in midsummer was strong, the moving handrail was heated by sunlight and the surface temperature was about 55 ° C or higher. For this reason, it has been difficult for passengers to grasp the moving handrail. For this reason, the passengers use the passenger conveyor without grasping the moving handrail, which has a safety problem.

  For this reason, the outdoor passenger conveyor has a cooling device that cools the surface of the handrail, and does not operate the cooling device while the temperature of the surface of the handrail does not reach a predetermined temperature or more. A temperature switch is provided for operating the cooling device when the temperature reaches a predetermined temperature or higher. The cooling device includes an alcohol spraying device that sprays alcohol onto the surface of the handrail and a fan device that promotes vaporization of the alcohol sprayed onto the surface of the handrail. The alcohol spraying device includes an alcohol tank, a compressor, a first hose that guides compressed air from the compressor to the nozzle, and a second hose that guides alcohol from the alcohol tank to the nozzle. The alcohol led to the nozzle is sprayed on the surface of the handrail in the form of a mist at the tip of the nozzle by the action of compressed air. The temperature switch is provided at each of the entrance / exit of the upper machine room of the passenger conveyor and the entrance / exit of the lower machine room of the passenger conveyor, and operates when the surface temperature of the handrail reaches a predetermined temperature or higher, for example, 40 ° C. The alcohol spraying device is electrically connected so as to operate the alcohol spraying device of the cooling device. The fan device is disposed on the left and right sides of the nozzle, and blows strong wind on the surface of the handrail so as to promote the vaporization of the alcohol sprayed on the surface of the handrail. The fan device has a sirocco fan structure. (For example, refer to Patent Document 1).

JP 2002-68663 (page 2-3, FIG. 1)

  Since the conventional handrail temperature adjusting device for a passenger conveyor is a cooling device that uses the heat of vaporization of alcohol sprayed on the surface of the handrail, the passenger may feel uncomfortable due to the odor of the vaporized alcohol. Further, the main frame of the passenger conveyor is filled with vaporized alcohol, and there is a risk of ignition by arc sparks generated during operation of the electromagnetic contactor in the operation controller of the passenger conveyor. Therefore, the passengers felt anxious.

  The present invention has been made to solve the above-described problems, and in passenger conveyors installed outdoors, even when the sunlight is strong, such as midsummer, there is a risk of passenger discomfort or flammability. A handrail temperature adjusting device for a passenger conveyor that can adjust the temperature of a moving handrail to an appropriate temperature without causing a sense of insecurity.

  In the handrail temperature control device for a passenger conveyor according to the present invention, in a passenger conveyor installed outdoors, a cooling device that blows cold air over a predetermined range on the surface of the moving handrail, and a moving material that is made of the same material as the moving handrail A pseudo section installed around the handrail under the same environmental conditions, a temperature detector embedded in the pseudo section, and a control device that activates the cooling device when the temperature detected by the temperature detector reaches a predetermined temperature. I have.

  According to the present invention, the moving handrail can be cooled by almost directly capturing the temperature rise of the moving handrail. For this reason, since the passenger can hold the moving handrail even when the sun is strong such as midsummer, safety is improved. In addition, the passenger conveyor can be used with peace of mind without feeling uncomfortable due to a strange odor or feeling of anxiety due to fear of ignition.

Embodiment 1 FIG.
1 is a general view showing a handrail temperature adjusting device for a passenger conveyor according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the forward path of the moving handrail of the passenger conveyor according to Embodiment 1 of the present invention. FIG. 3 is a cross-sectional view of the return path of the moving handrail of the passenger conveyor according to Embodiment 1 of the present invention. FIG. 4 is a perspective view (partial cross-sectional view) of the main part of the forward path of the moving handrail of the passenger conveyor according to the first embodiment of the present invention. FIG. 5 is a perspective view (partially sectional view) of a main part of a return path of a moving handrail of the passenger conveyor according to the first embodiment of the present invention. FIG. 6 is a detailed view of the blower pipe in the moving handrail temperature adjusting device for passenger conveyor according to the first embodiment of the present invention. FIG. 7 is a flowchart for explaining a temperature adjustment operation in the passenger conveyor handrail temperature adjustment device according to the first embodiment of the present invention. In FIG. 7, steps 100 to 112 are indicated as S100 to S112 for convenience.

  1 to 6, a main frame 4 is installed on a passenger conveyor 1 from one entrance 2 to the other entrance 3, and an operation controller that controls operation / stop of the passenger conveyor is disposed above the main frame 4. 5 is provided. The main frame 4 supports a plurality of steps 6 that are connected endlessly and reciprocate. A pair of balustrades 7 erected on both sides of the step 6 are fixed to the inner plate 8 facing the space on the step 6, the deck board 9 disposed above the inner plate 8, and the deck board 9. The guide rail 10 and the guide rail 12 supported by the support member 11 are provided in the base of the balustrade 7. In the vicinity of the balustrade 7, there is provided an endlessly connected moving handrail 13 that reciprocates in synchronization with the step 6 with the guide rail 10 as the forward path and the guide rail 12 as the return path. The movable handrail 13 is supported by the guide rail 10 and the guide rail 12 over almost the entire circumference.

  A groove portion 14 is provided over the entire length on the upper surface of the guide rail 10 that is the forward path of the moving handrail 13. The groove portion 14 is provided with a plurality of guide rollers 15 at predetermined intervals to guide the moving handrail in the moving direction. A gap 16 is formed between the guide rail 10 and the moving handrail 13. The guide rail 12 that is the return path of the moving handrail 13 supports the moving handrail 13 in a suspended state, and a gap 17 is formed between the guide rail 12 and the moving handrail 13. The guide rail 10 and the guide rail 12 are each provided with a ventilation hole 18 reaching the gap 16 and the gap 17 at a plurality of locations, and a cap 19 is attached to each ventilation hole 18.

  The pseudo section 20 is a pseudo moving handrail made of the same material as the moving handrail 13, and a temperature sensor 21 made of a thermocouple as a temperature detector is embedded in the pseudo section 20. The pseudo-section 20 is embedded and fixed to the deck board 7 so as to be affected by sunlight, temperature, and the like, similarly to the moving handrail 13.

  The spraying device 22 pressurizes water taken from a water supply pipe (not shown) by a compressor, and passes through a water distribution pipe 23 disposed below the moving handrail 13 passing through a return path in the base of the balustrade 6. The nozzle 24 connected to the tip of the nozzle 23 is sprayed on the surface of the moving handrail 13 passing through the return path.

  The air conditioner 25 is composed of, for example, a heat pump, and cool air generated by operating the air through a blower pipe 26 and a blower pipe 27 disposed below the moving handrail 13 passing through the return path in the base of the balustrade 6. The surface of the moving handrail 13 sprayed by the spraying device 22 by increasing the wind pressure by the restriction of the air nozzle 28 and the air nozzle 29 connected to the distal ends of the air blowing pipe 26 and the air blowing pipe 27 and spraying it toward the moving handrail 13 passing through the return path. The water droplets are vaporized.

  In addition, the air conditioner 25 is a blower pipe that branches and connects cold air generated by operation to a base 19 attached to a plurality of ventilation holes 18 in the guide rail 10 and the guide rail 12 in the base of the balustrade 6. 30 is used to blow air to the gap 16 and the gap 17 formed on the back surface of the moving handrail 13.

  The electromagnetic valve 31, the electromagnetic valve 32, and the electromagnetic valve 33 open and close the air duct 26, the air duct 27, and the air duct 30, respectively.

  The air conditioner controller 34 is configured by a microcomputer having a CPU, a memory, and the like, and based on the temperature of the pseudo-section 20 detected by the temperature sensor 21, the operation / stop of the spray device 22 and the air conditioner 25, and the electromagnetic valve 31. And a control means for controlling the opening / closing of the electromagnetic valve 32 and the electromagnetic valve 33.

Next, the temperature adjustment operation of the moving handrail in the moving handrail temperature adjusting device of the passenger conveyor will be described based on the flow of FIG.
When the moving handrail 13 of the passenger conveyor 1 installed outdoors receives strong sunlight in midsummer or the like, its temperature rises rapidly. Further, the pseudo section 20 made of the same material as the moving handrail 13 is embedded and fixed on the deck board 9 that receives the sunlight, the outside air temperature and the like that cause the temperature to rise as much as the moving handrail 13. If the temperature of the handrail 13 rises, the temperature of the pseudo intercept 20 also rises synchronously. Therefore, the temperature of the moving handrail 13 can be approximately measured by the temperature sensor 21 embedded in the pseudo intercept 20.

  First, the air conditioner controller 34 determines whether or not the temperature sensor 21 has detected a temperature of 40 ° C. (operating temperature) or higher (step 100). And if it judges that the temperature sensor 21 has detected the temperature more than 40 degreeC (operating temperature), the air conditioning controller 34 will drive the passenger conveyor 1 according to whether the operation signal transmitted from the operation controller 5 is ON or OFF. It is determined whether it is in the middle (step 101). If it is determined that the passenger conveyor 1 is in operation, the air conditioning controller 34 operates the air conditioning device 25 to start the cooling operation (step 102). That is, the temperature sensor 21 detects a temperature of 40 ° C. (operating temperature) or higher and the passenger conveyor 1 is operating is a condition for starting the cooling operation of the moving handrail 13.

  Next, the air conditioner controller 34 opens the electromagnetic valve 33 (step 103). As a result, the cool air generated from the air conditioner 25 is blown into the gap 16 and the gap 17 through the ventilation holes 18 of the guide rail 10 and the guide rail 12 through the blower pipe 30 to cool the moving handrail 13 from the back surface.

  Next, the air conditioner controller 34 determines whether or not the operating direction of the passenger conveyor 1 is the UP direction (step 104). If it is determined that the operation direction is the UP direction, the air conditioning controller 34 opens the electromagnetic valve 31 (step 105). As a result, the cool air generated from the air conditioner 25 is blown through the blower pipe 26 from the air nozzle 28 connected to the tip of the blower pipe 26 onto the surface of the moving handrail 13 passing through the multi-path. On the other hand, when determining that the operation direction is not the UP direction, the air conditioning controller 34 opens the electromagnetic valve 32 (step 106). As a result, the cool air generated from the air conditioner 25 is blown through the blower pipe 27 from the air nozzle 29 connected to the tip of the blower pipe 27 to the surface of the moving handrail 13 passing through the multi-path.

  Next, the air conditioner controller 34 operates the spraying device 22 (step 107). As a result, the spraying device 22 pressurizes the water taken in from the water supply pipe by the compressor and sprays the water on the surface of the moving handrail 13 passing through the return path from the nozzle 24 connected to the tip of the water distribution pipe 23 through the water distribution pipe 23. . As a result, the water droplets adhering to the moving handrail 13 are vaporized by the cold air blown from the air nozzle 28 or the air nozzle 29 according to the driving direction of the passenger conveyor 1, thereby cooling the surface of the moving handrail 13.

  When the air conditioner controller 34 recognizes that the temperature sensor 21 has detected a temperature of 36 ° C. (stop temperature) or less due to a decrease in sunlight, a decrease in outside air temperature, or the like (step 108), the air conditioner controller 34 recognizes the spray device. 22 is stopped (step 109). Next, the air conditioner controller 34 closes the electromagnetic valve 31 or the electromagnetic valve 32 (step 110). As a result, the cooling operation by spraying from the surface of the moving handrail 13 is completed.

  Next, the air conditioner controller 34 stops the air conditioner 25, stops the cooling operation (step 111), and closes the electromagnetic valve 33 (step 112). As a result, the cooling operation by the cold air from the back surface of the moving handrail 13 is completed.

  Even if the temperature sensor 21 does not detect a temperature of 36 ° C. (stop temperature) or less, the air conditioning controller 34 stops the operation signal OFF transmitted from the operation controller 5 when the passenger conveyor 1 stops due to the operation of the safety device or the like. When detected, the spraying device 22 and the cooling / heating device 25 are immediately stopped to end the cooling operation.

  As described above, according to the first embodiment, the temperature rise of the moving handrail is accurately grasped and cooled by blowing cool air on the back surface of the moving handrail, and the water droplets sprayed on the surface of the moving handrail are blown and vaporized. Since it cools, it can suppress that the temperature of a moving handrail rises to 40 degreeC or more. Therefore, since the passenger can grasp the moving handrail without feeling heat, safety is improved.

  Also, the vaporized water and cold air are almost odorless and there is no fear of ignition, so passengers can use the passenger conveyor with peace of mind without feeling uncomfortable or uneasy.

Embodiment 2. FIG.
FIG. 8 is a flow chart for explaining a temperature adjustment operation in the handrail temperature adjustment device for a passenger conveyor according to Embodiment 2 of the present invention. In FIG. 8, steps 200 to 213 are indicated as S200 to S213 for convenience.

A temperature adjustment operation of the moving handrail in the passenger conveyor handrail temperature adjusting device of the second embodiment will be described based on the flow of FIG.
First, the air conditioner controller 34 determines whether or not the temperature sensor 21 has detected a temperature of 40 ° C. (operating temperature) or higher (step 200). And if it judges that the temperature sensor 21 has detected the temperature of 40 degreeC (operating temperature) or more, the air conditioning controller 34 will drive the passenger conveyor 1 according to whether the operation signal transmitted from the operation controller 5 is ON or OFF. It is determined whether it is in the middle (step 201). When it is determined that the passenger conveyor 1 is in operation, the air conditioner controller 34 operates the air conditioner 25 to start the cooling operation (step 202). That is, the temperature sensor 21 detects a temperature of 40 ° C. (operating temperature) or higher and the passenger conveyor 1 is operating is a condition for starting the cooling operation of the moving handrail 13.

  Next, the air conditioning controller 34 opens the electromagnetic valve 33 (step 203). As a result, the cool air generated from the air conditioner 25 is blown into the gap 16 and the gap 17 through the ventilation holes 18 of the guide rail 10 and the guide rail 12 through the blower pipe 30 to cool the moving handrail 13 from the back surface.

  Next, the air conditioner controller 34 determines whether or not the driving direction of the passenger conveyor 1 is the UP direction (step 204). When it is determined that the operation direction is the UP direction, the air conditioning controller 34 opens the electromagnetic valve 31 (step 205). As a result, the cold air generated from the air conditioner 25 is blown through the air duct 26 from the air nozzle 28 connected to the tip of the air duct 26 onto the surface of the moving handrail 13 passing through the forward path. On the other hand, if it is determined that the operation direction is not the UP direction, the air conditioning controller 34 opens the electromagnetic valve 32 (step 206). As a result, the cool air generated from the air conditioner 25 is blown through the blower pipe 27 from the air nozzle 29 connected to the tip of the blower pipe 27 to the surface of the moving handrail 13 passing through the forward path.

  Next, the air conditioner controller 34 operates the spraying device 22 (step 207). As a result, the water taken from the water supply pipe into the spraying device 22 is pressurized by the compressor and sprayed through the water distribution pipe 23 from the nozzle 24 connected to the tip of the water distribution pipe 23 onto the surface of the moving handrail 13 passing through the forward path. . Moreover, the water droplets adhering to the moving handrail 13 are vaporized by the cold air blown from the air nozzle 28 or the air nozzle 29 in accordance with the operation direction of the passenger conveyor 1, thereby cooling the surface of the moving handrail 13.

  Then, the air conditioner controller 34 recognizes that the temperature sensor 21 has detected a temperature of 38 ° C. or lower, which is 2 ° C. lower than 40 ° C. (operating temperature) due to a decrease in sunlight, a decrease in outside air temperature, or the like (step 208). The air conditioner controller 34 stops the spraying device 22 (step 209). Next, the air conditioner controller 34 closes the electromagnetic valve 31 or the electromagnetic valve 32 (step 210). As a result, the cooling operation by spraying from the surface of the moving handrail 13 is completed.

  When the air conditioning controller 34 recognizes that the temperature sensor 21 has detected a temperature equal to or lower than 36 ° C. (stop temperature) due to a further decrease in sunlight, a decrease in outside air temperature, or the like (step 211), the air conditioning controller 34 Then, the air conditioner 25 is stopped, the cooling operation is stopped (step 212), and the electromagnetic valve 33 is closed (step 213). As a result, the cooling operation by the cold air from the back surface of the moving handrail 13 is completed.

  The air conditioning controller 34 does not detect the stop temperature of 36 ° C. (stop temperature) or less, and the operation signal OFF transmitted from the operation controller 5 is stopped when the passenger conveyor 1 is stopped by the operation of the safety device or the like. Is detected, the spraying device 22 and the cooling / heating device 25 are immediately stopped to end the cooling operation.

  Thus, according to the second embodiment of the present invention, in addition to the effect of the first embodiment, since the spraying device is stopped before reaching the stop temperature, power saving can be achieved.

Embodiment 3 FIG.
FIG. 9 is a flow chart for explaining the temperature adjustment operation in the handrail temperature adjustment device for passenger conveyor according to Embodiment 3 of the present invention. In FIG. 9, steps 300 to 307 are indicated as S300 to S307 for convenience.

The temperature adjustment operation of the moving handrail in the handrail temperature adjusting device for passenger conveyor of the third embodiment will be described based on the flow of FIG.
First, the air conditioning controller 34 determines whether or not the temperature sensor 21 detects 5 ° C. (operating temperature) or less (step 300). And if it judges that the temperature sensor 21 has detected 5 degrees C (operation temperature) or less, the air conditioning controller 34 will be operating the passenger conveyor 1 by the operation signal transmitted from the operation controller 5 being ON or OFF. It is determined whether or not there is (step 301).

  And if it judges that the passenger conveyor 1 is driving | running, the air-conditioner controller 34 provided with the timer by which the frequent use time zone which a passenger uses the passenger conveyor 1 frequently by commuting, attending school, etc. was used frequently It is determined whether or not it is a time zone (step 302). And if it judges that it is a frequent use time slot | zone, the air conditioning apparatus controller 34 will operate the air conditioning apparatus 25 and will start heating operation (step 303). That is, the temperature sensor 21 detects a temperature of 5 ° C. or less, and that the passenger conveyor 1 is in operation and that it is in a frequent use time period is a condition for starting the heating operation of the moving handrail 13. .

  Next, the air conditioner controller 34 opens the electromagnetic valve 33 (step 304). As a result, the warm air generated from the air conditioner 25 is blown into the gap 16 and the gap 17 through the ventilation holes 18 of the guide rail 10 and the guide rail 12 through the blower pipe 30 to warm the moving handrail 13 from the back surface.

  When the air conditioner controller 34 recognizes that the temperature sensor 21 has detected a temperature of 8 ° C. (stop temperature) or more due to a rise in outside air temperature or the like (step 305), the air conditioner controller 34 stops the air conditioner 25. Then, the heating operation is stopped (step 306), and the electromagnetic valve 33 is closed (step 307). As a result, the heating operation of the moving handrail 13 is completed.

  The air conditioning controller 34 does not detect the stop temperature of 8 ° C. (stop temperature) or more, and the operation signal OFF transmitted from the operation controller 5 is stopped when the passenger conveyor 1 is stopped by the operation of the safety device or the like. When the air conditioning controller 34 recognizes that the frequent use time zone has passed, the air conditioning device 25 is immediately stopped to end the heating operation.

  Thus, according to this Embodiment 3, since it heats by blowing warm air on the back surface of a moving handrail, the temperature of a moving handrail falls to 5 degrees C or less also in the severe winter time when the temperature of a moving handrail falls. This can be suppressed. Therefore, since the passenger can grasp the moving handrail without feeling cold, safety is improved.

  Moreover, since the heating operation of the moving handrail is performed only in the time zone frequently used by passengers, power saving can be achieved.

  In addition, in this Embodiment 3, although the heating operation | movement which ventilates warm air to the back surface of the moving handrail back surface 13 was demonstrated, in addition to this, the electromagnetic valve 31 and the electromagnetic valve 32 are opened at the time of heating operation, It goes without saying that by blowing the generated warm air from the air nozzle 28 and the air nozzle 29 onto the surface of the moving handrail 13, it is possible to promote dry removal of frost and dew adhering to the surface of the moving handrail 13 in the severe winter season.

BRIEF DESCRIPTION OF THE DRAWINGS It is a general view which shows the handrail temperature control apparatus of the passenger conveyor which concerns on Embodiment 1 of this invention. It is sectional drawing of the going path of the moving handrail of the passenger conveyor which concerns on Embodiment 1 of this invention. It is sectional drawing of the return path of the moving handrail of the passenger conveyor which concerns on Embodiment 1 of this invention. It is a perspective view (partial sectional view) of an outward path of a moving handrail of a passenger conveyor according to Embodiment 1 of the present invention. It is a perspective view (partial cross section figure) of the return path of the moving handrail of the passenger conveyor which concerns on Embodiment 1 of this invention. It is detail drawing of the blast pipe of the moving handrail of the passenger conveyor which concerns on Embodiment 1 of this invention. It is a flowchart explaining the temperature adjustment operation | movement in the handrail temperature adjustment apparatus of the passenger conveyor which concerns on Embodiment 1 of this invention. It is a flowchart explaining the temperature adjustment operation | movement in the handrail temperature adjustment apparatus of the passenger conveyor which concerns on Embodiment 2 of this invention. It is a flowchart explaining the temperature adjustment operation | movement in the handrail temperature adjustment apparatus of the passenger conveyor which concerns on Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 5 Operation controller, 10 Guide rail, 12 Guide rail, 13 Moving handrail, 18 Ventilation hole, 20 Pseudo intercept, 21 Temperature sensor, 22 Spraying device, 23 Water distribution pipe, 24 Nozzle, 25 Air-conditioning / heating device, 26 Blower pipe, 27 Blower pipe , 28 Air nozzle, 29 Air nozzle, 30 Air pipe, 31 Electromagnetic valve, 32 Electromagnetic valve, 33 Electromagnetic valve, 34 Air conditioner controller.

Claims (5)

  In a passenger conveyor installed outdoors, a cooling device that blows cold air over a predetermined range on the back surface of the moving handrail, and a pseudo section that is made of the same material as the moving handrail and is installed around the moving handrail under the same environmental conditions And a temperature detector embedded in the pseudo section, and a control means for operating the cooling device when the temperature detected by the temperature detector reaches a predetermined temperature. Adjustment device. 2. The spray device according to claim 1, further comprising: a spray device that sprays water toward a surface of the moving handrail; and a control unit that operates the spray device when the temperature detected by the temperature detector reaches a predetermined temperature. The handrail temperature adjusting device of the passenger conveyor as described.   The control means stops the spray device when the temperature detected by the temperature detector decreases and reaches a first predetermined temperature when the cooling device and the spray device are operating, and detects the temperature detector. The handrail temperature adjusting device for a passenger conveyor according to claim 2, wherein the cooling device is stopped when the measured temperature reaches a second predetermined temperature lower than the first predetermined temperature.   The handrail temperature adjusting device for a passenger conveyor according to claim 1 or 2, wherein the cooling device is a cooling device that includes a heat pump and can be switched between a cooling operation and a heating operation.   The handrail temperature of the passenger conveyor according to claim 1 or 2, wherein the control means is a control means to which a timer function for operating the cooling device and the spraying device according to a set time zone is added. Adjustment device.

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