KR100869612B1 - Doorway Device of Elevator - Google Patents

Abstract

In the doorway device of an elevator, the elevator door is provided with the detection apparatus for detecting a to-be-detected body. The detection apparatus has a measuring unit for measuring the distance to the object to be detected, and a processing unit electrically connected to the measuring unit. The measuring unit has a light emitting unit, a lens for forming reflected light when the light from the light emitting unit is reflected by the object to be detected, and an imaging position detecting unit for generating a signal in accordance with the position of the imaging point of the reflected light. The processing unit determines the presence or absence of the object to be detected in the predetermined detection area based on the signal from the measurement unit.

Description

Doorway Device for Elevator {DOORWAY DEVICE FOR ELEVATOR}

TECHNICAL FIELD This invention relates to the elevator entrance / exit apparatus for detecting a passenger of a boarding point, etc., for example.

Conventionally, in order to detect that a passenger approaches the doorway of an elevator which can be opened and closed, a transmitter is provided in one door and a receiver is installed in the other door. The transmitter is configured to irradiate infrared light toward the landing side. The receiver is adapted to receive the reflected light when the infrared light from the transmitter is reflected by the passengers in the landing. In the conventional elevator, when the amount of light received by the receiver exceeds the set value, the passenger's approach to the entrance and exit of the elevator is detected (see Patent Document 1).

Patent Document 1: Patent Publication No. 3088936

Problem to be solved by invention

However, for example, when the reflectance of the passenger is low due to clothing or the like, even when the passenger approaches the doorway of the elevator, the amount of reflected light from the passenger is insufficient, so that the passenger's approach to the doorway of the elevator cannot be detected. There is a thing.

In addition, since the receiver receives not only the reflected light from the passenger but also disturbance light, the amount of light received by the receiver increases due to the disturbance light, which may cause a malfunction.

This invention is made | formed in order to solve the above subjects, and an object of this invention is to obtain the doorway apparatus of the elevator which can detect a to-be-detected body more reliably.

Means for solving the problem

The doorway apparatus of the elevator by this invention is a light-emitting part, the imaging optical system for image-forming the reflected light when the light from a light-emitting part is reflected by a to-be-detected object, and the imaging point of reflected light. The presence / absence of a to-be-detected object in a predetermined detection area is determined on the basis of a measurement unit provided in an elevator door that opens and closes an entrance and exit of an elevator, and a signal from an imaging position detection unit. It is equipped with the process part to determine.

BRIEF DESCRIPTION OF THE DRAWINGS It is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 1 of this invention.

It is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 2 of this invention.

It is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 3 of this invention.

It is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 4 of this invention.

It is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 5 of this invention.

It is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 6 of this invention.

It is a front view which shows the entrance / exit apparatus of the elevator by Embodiment 7 of this invention.

Preferred Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described with reference to drawings.

Embodiment 1.

1: is a longitudinal cross-sectional view which shows the entrance / exit apparatus of the elevator by Embodiment 1 of this invention. In the figure, the door 2 of a pair of cage | basket | cars which opens and closes the cage | basket | car entrance and exit 3 is mounted in the cage | basket | car 2 which raises and lowers the inside of the hoistway 1. The doors 4 of the cars are reciprocated in opposite directions along the width direction of the car doorway 3. The car doorway 3 is opened and closed by the reciprocating motion of each car. The door 4 of each car is reciprocated by the door drive device (not shown) mounted in the car 1.

Each floor is provided with a boarding point entrance and exit 6 that is opened and closed by a pair of doors 5. The doors 5 of the landings can be engaged with the doors 4 of each car by an engagement device (not shown) when the doors 5 are placed on each floor of the car 2. have. Moreover, the door 5 of each board | substrate is able to reciprocate with the door 4 of each car by engaging with the door 4 of each car. As a result, the doors 5 of the landings are reciprocated in the width direction of the landing doors 6. The boarding point entrance and exit 6 is opened and closed by the reciprocating motion of the door 5 of each boarding point.

In addition, the doorway 9 of the elevator for communicating the inside of the car 2 and the boarding point 8 with each other at the time of conception of the car 2 has the car doorway 3 and the boarding point entrance 6. . Moreover, the elevator door 10 for opening and closing the doorway 9 of an elevator has the door 4 of the cage | basket | car and the door 5 of the boarding point.

The detection device (distance sensor) 12 which can detect the passenger 11 which is a to-be-detected body without contact is provided in the door closing end part of the door 4 of one car. The detection apparatus 12 is able to detect the passenger 11, when the passenger 11 is located in a predetermined detection area. The predetermined detection area is set in the landing 8.

The detection apparatus 12 is based on the information from the measurement part 13 and the measurement part 13 for measuring the distance between the passengers 11, and of the passenger 11 in a predetermined detection area. It has the processing part 14 which determines the presence or absence.

The measurement part 13 is the light emission part 16 which is a light emitting element which irradiates to the boarding point 8 side, for example, light, such as infrared rays or visible light, as the measurement light 15, and the light from the light emission part 16. The lens 18 which is an imaging optical system for imaging the reflected light 17 when reflected by this passenger 11, and the imaging position detection part 19 arrange | positioned in the position where the reflected light 17 is imaged by the lens 18. Has) Moreover, as the light emitting part 16, the irradiation apparatus etc. which combined a light emitting diode, a semiconductor laser, or a light emitting diode (or a semiconductor laser) and a lens are mentioned, for example. Moreover, as an imaging position detection part 19, a position detection element, an imaging element, a photodiode array, etc. are mentioned, for example. The measurement light 15 is always irradiated from the light emitting part 16 to the boarding point 8 side. Moreover, the irradiation direction of the measurement light 15 is made into the substantially horizontal direction.

The lens 18 is disposed above the light emitting portion 16 and is disposed on the landing 8 side of the image forming position detecting portion 19. The reflected light 17 from the passenger 11 is imaged by the lens 18 on the image forming position detection unit 19.

The position of the imaging point of the reflected light 17 in the imaging position detection part 19 corresponds to the position with respect to the measurement part 13 of the passenger 11. The imaging position detection unit 19 detects the position of the imaging point by the lens 18 of the reflected light 17 and generates a signal (detection signal) corresponding to the position of the imaging point. That is, the imaging position detection unit 19 generates a detection signal corresponding to the position of the passenger 11 relative to the measurement unit 13. In addition, the imaging position detection unit 19 is electrically connected to the processing unit 14. The detection signal generated by the imaging position detection unit 19 is output to the processing unit 14.

In the processing unit 14, a detection signal from the imaging position detection unit 12 is input as position information. The processing unit 14 calculates the distance between the light emitting unit 16 and the passenger 11 as a calculated value based on the input positional information, based on the calculated value obtained by the calculating unit 20 and the calculating unit 20. In addition, it has the determination part 21 which determines the presence or absence of the passenger 11 in a predetermined detection area.

The calculating part 20 is electrically connected to the imaging position detection part 19 and the determination part 21, respectively. The determination unit 21 determines that the passenger 11 is located within the predetermined area when the calculated value obtained by the calculating unit 20 is equal to or less than the preset value, and when the calculated value exceeds the set value, the passenger 11 determines the predetermined value. It is determined that it is located outside the detection area of. The determination unit 21 is configured to output determination information on the presence or absence of the detection of the passenger 11 determined based on the information from the calculation unit 20.

The door open / close control device (not shown) which controls opening / closing of the doorway 9 of an elevator is mounted in the cage | basket | car 2. The determination unit 21 is electrically connected to the door opening and closing control device. The determination information from the determination unit 21 is input to the door opening and closing control device.

When the door opening / closing control device receives the determination information from the determination unit 21 that the position of the passenger 11 is within the predetermined detection area, the door is opened so as to reverse the elevator door 10 in the door opening direction during the door closing operation. Control the drive. In addition, the door opening and closing control device, when receiving the determination information from the determination unit 21 that the position of the passenger 11 is outside the predetermined detection area, the door drive device so that the elevator door 10 performs the normal opening and closing operation. To control.

Next, the operation will be described. In the light emitting portion 16, the measurement light 15 is constantly irradiated to the landing 8 side. When the passenger 11 approaches the doorway 9 of the elevator and the measurement light 15 is reflected by the passenger 11, the reflected light 17 is imaged on the image forming position detection unit 19 by the lens 18. . The position of the imaging point of the reflected light 17 at this time becomes a position according to the position with respect to the light emission part 16 of the passenger 11.

Thereafter, the position of the imaging point of the reflected light 17 is detected by the imaging position detection unit 19, and a detection signal corresponding to the position of the imaging point is output from the imaging position detection unit 19 to the calculation unit 20 as position information. . Subsequently, the calculating unit 20 calculates the position based on the positional information from the image forming position detecting unit 19, and the distance between the light emitting unit 16 and the passenger 11 is obtained as a calculated value. After that, the information of the calculation value is output from the calculation unit 20 to the determination unit 21.

Thereafter, the information of the calculation value is input to the determination unit 21. The determination unit 21 determines whether or not the calculated value is less than or equal to the set value. The determination unit 21 determines that the position of the passenger 11 is within the predetermined detection area when the calculated value is less than or equal to the set value, and when the calculated value exceeds the set value, the position of the passenger 11 is outside the predetermined detection area. It is determined.

Thereafter, the determination information determined by the determination unit 21 is output from the determination unit 21 to the door opening and closing control device. The door opening / closing control device controls the door driving device based on the determination information to open and close the doorway 9 of the elevator.

In the doorway device of such an elevator, the reflected light 17 from the passenger 11 is imaged by the lens 18, and the imaging position detection part 19 produces | generates the detection signal according to the position of the imaging point of the reflected light 17. Therefore, the position of the passenger 11 can be detected based on the position of the imaging point of the reflected light 17 irrespective of the light quantity of the reflected light 17. Thereby, even when the reflectance of the passenger 11 is low and the light quantity of the reflected light 17 received from the passenger 11 is small, the passenger 11 which is a to-be-detected body can be detected more reliably. In addition, the lens 18 may be disposed below the light emitting portion 16.

Embodiment 2.

Fig. 2 is a longitudinal sectional view showing the doorway device of the elevator according to the second embodiment of the present invention. In the figure, the upper detection device 31 and lower detection which are the plurality (in this example, two) detection devices arrange | positioned in the up-down direction (height direction) at the door closing side edge part of the door 4 of a car. The device 32 is installed. The upper detection device 31 is disposed above the lower detection device 32.

The upper detection device 31 is capable of detecting the detected object arranged in the high region located at a predetermined height from the bottom surface of the landing 8. Moreover, the lower detection apparatus 32 is able to detect the to-be-detected body arrange | positioned at the lower region located below the high region. That is, the detection area in the height direction is different from each other by the upper detection device 31 and the lower detection device 32. In addition, in this example, the to-be-detected object arrange | positioned at the high region is considered to be the bed 33, and the to-be-detected object arrange | positioned at the lower region is the trolley | bogie 34. As shown to FIG.

The upper detection device 31 has a measuring unit 35 and a processing unit 36 electrically connected to the measuring unit 35. In addition, the lower detection apparatus 32 has a measuring unit 37 and a processing unit 38 electrically connected to the measuring unit 37.

Although each structure of the measuring part 35 and the measuring part 37 is substantially the same as the structure of the measuring part 13 of Embodiment 1, only the irradiation direction of the measurement light from each light emission part 16 is Embodiment 1 Is different. That is, the measurement light 15a is irradiated downward from the light emission part 16 of the measurement part 35, and the measurement light 15b is irradiated downward from the light emission part 16 of the measurement part 37.

In the imaging position detection unit 19 of the measurement unit 35, the reflected light 17a when the measurement light 15a is reflected from the bed 33 is imaged. In the measuring unit 35, the position of the image forming point of the reflected light 17a is detected by the image forming position detecting unit 19, and the signal (detection signal) according to the position of the image forming point of the reflected light 17a is the image forming position as the position information. It is output from the detector 19 to the processor 36.

The processing unit 36 calculates and calculates the distance between the light emitting unit 16 and the bed 33 based on the input position information, and based on the calculated value obtained by the calculating unit 20, It has the determination part 21 which determines the presence or absence of the bed 33 in the detection area of the upper detection apparatus 31. As shown in FIG.

The determination unit 21 of the processing unit 36 determines that the bed 33 is located within the predetermined area when the input calculation value is equal to or smaller than a preset setting value, and when the calculation value exceeds the setting value, the bed 33 is predetermined. It is determined that it is located outside the detection area of. The determination unit 21 of the processing unit 36 is configured to output high-level determination information on the presence or absence of the detection of the bed 33 determined based on the information from the operation unit 20.

In the imaging position detection unit 19 of the measuring unit 37, the reflected light 17b when the measuring light 15b is reflected from the cart 34 is imaged. In the measuring unit 37, the position of the image forming point of the reflected light 17b is detected by the image forming position detecting unit 19, and the signal (detection signal) according to the position of the image forming point of the reflected light 17b is the image forming position as the position information. It is output from the detector 19 to the processor 38.

The processing unit 38 calculates and calculates the distance between the light emitting unit 16 and the balance 34 based on the input position information, and based on the calculation value obtained by the calculating unit 20, It has the determination part 21 which determines the presence or absence of the trolley | bogie 34 in the detection area of the lower detection apparatus 32. As shown in FIG.

The determination unit 21 of the processing unit 38 determines that the balance 34 is located within the predetermined area when the input calculation value is equal to or less than the preset value, and when the calculation value exceeds the setting value, the balance 34 is predetermined. It is determined that it is located outside the detection area of. The determination unit 21 of the processing unit 38 outputs the low determination information on the presence or absence of the bogie 34 determined based on the information from the operation unit 20.

Each determination part 21 of the processing part 36 and the processing part 38 is electrically connected to the door opening / closing control apparatus. The door opening / closing control device is configured to control the opening and closing of the doorway 9 of the elevator based on the high judgment information from the processing unit 36 and the low judgment information from the processing unit 38. That is, the door opening / closing control device is a case where only the bed 33 is detected by the upper detection device 31, when only the truck 34 is detected by the lower detection device 32 or the bed 33 and the truck ( When each of the 34 is detected by the upper detecting device 31 and the lower detecting device 32, the door driving device is controlled to reverse the elevator door 10 in the door opening direction during the door closing operation. All. The other configuration is the same as that in the first embodiment.

Next, the operation will be described. The measurement light 15a is emitted from the light emitting portion 16 of the upper detection device 31, and the measurement light 15b is respectively downward from the light emitting portion 16 of the lower detection device 32. It is always investigated.

When the bed 33 is close to the doorway 9 of the elevator, and the measurement light 15a is reflected by the bed 33, the reflected light 17a is formed by the lens 18 in the imaging position detection unit of the measurement unit 35. It is formed in (19). The position of the imaging point of the reflected light 17a at this time becomes a position according to the position of the bed 33 with respect to the light emission part 16 of the upper detection apparatus 31. As shown in FIG.

After that, in the measuring unit 35, the position of the image forming point of the reflected light 17a is detected by the image forming position detecting unit 19, and the detection signal corresponding to the position of the image forming point of the reflected light 17a is formed in the image forming position detecting unit 19. ) Is output to the processing unit 36. Thereafter, in the processing unit 36, the detection signal from the imaging position detection unit 19 of the measurement unit 35 is processed in the same manner as the processing unit 14 of the first embodiment. As a result, high-level judgment information on the presence or absence of the detection of the bed 33 is output from the processing unit 36 to the door opening and closing control device.

When the trolley | bogie 34 approaches the doorway 9 of an elevator, and the measurement light 15b is reflected by the trolley | bogie 34, the reflected light 17b is an imaging position detection part of the measurement part 37 by the lens 18. It is formed in (19). The position of the imaging point of the reflected light 17b at this time becomes a position according to the position of the trolley | bogie 34 with respect to the light emission part 16 of the lower detection apparatus 32. As shown in FIG.

Thereafter, in the measuring unit 37, the position of the image forming point of the reflected light 17b is detected by the image forming position detecting unit 19, and a detection signal corresponding to the position of the image forming point of the reflected light 17b is formed in the image forming position detecting unit 19. ) Is output to the processing unit 38. Thereafter, in the processing unit 38, the detection signal from the imaging position detection unit 19 of the measurement unit 37 is processed similarly to the processing unit 14 of the first embodiment. As a result, low-level determination information on whether the truck 34 is detected or not is output from the processing unit 38 to the door opening and closing control device.

Thereafter, when the high-level determination information and the low-decision information are input to the door opening and closing control device, the door driving device is controlled by the door opening and closing control device based on the high and low judgment information and the low and low judgment information, and opening and closing of the doorway 9 of the elevator. Is performed. That is, when at least one of the bed 33 and the trolley 34 is detected, the elevator door 10 during the door closing operation is reversed in the door opening direction.

In the doorway device of such an elevator, since the upper detection apparatus 31 and the lower detection apparatus 32 are arrange | positioned in the up-down direction, when the height of a to-be-detected body is largely different like the bed 33 and the trolley | bogie 34, Also, each of the bed 33 and the trolley 34 can be detected more reliably.

In the above-described example, the measurement light 15a is always irradiated from the light emitting portion 16 of the upper detection device 31, and the measurement light 15b is always illuminated from the light emitting portion 16 of the lower detection device 32. Although it is supposed to irradiate, the measurement light 15a from the light emission part 16 of the upper detection apparatus 31 and the measurement light 15b from the light emission part 16 of the lower detection apparatus 32 are a door opening / closing control apparatus. May be selectively irradiated under the control of.

Embodiment 3.

Fig. 3 is a longitudinal sectional view showing the elevator detection device according to the third embodiment of the present invention. In the figure, the detection apparatus 41 is provided in the upper part of the door closing side edge part of the door 4 of one cage | basket | car. The configuration of the detection device 41 is the same as that of the upper detection device 31 of the second embodiment. That is, the detection apparatus 41 has the measuring part 35 and the processing part 36.

The light emitting part 16 of the measuring part 35 is able to irradiate the measurement light 15 so that it may pass through a low level detection area after passing a high detection area. Therefore, the detection apparatus 41 is arrange | positioned in each of the high detection area located in the height between the bottom surface of the boarding point 8, and the light emitting part 16, and the low detection area located below the high detection area. The object to be detected can be detected.

When the bed 33 to be detected is located in the high detection area, the measurement light 15 is shielded by the bed 33 and does not reach the low detection area. Moreover, the measurement light 15 from the light emission part 16 of the measurement part 35 is reflected as the reflected light 17a by the bed 33 when the bed 33 exists in the high detection area | region, and low-level detection is carried out. When there is a trolley | bogie 34 which is a to-be-detected body only in an area | region, it passes through the high detection area | region, and is reflected by the trolley | bogie 34 as reflected light 17b. The reflected light 17a and the reflected light 17b are formed to form in the imaging position detection unit 19 of the measurement unit 35.

The imaging position detection unit 19 of the measuring unit 35 outputs the detection signal corresponding to the positions of the reflection light 17a and the imaging point of the reflection light 17b to the processing unit 36 as position information. The calculating part 20 of the processing part 36 calculates an operation value by calculating based on the positional information from the imaging position detection part 19. FIG. The determination unit 21 of the processing unit 36 detects the object (in this example, the bed 33 and the bogie) in the high detection area and the low detection area, based on the calculation value obtained by the calculation unit 20. Or (34), and outputs judgment information regarding the detection of the detected object to the door open / close control device. The other configuration is the same as that in the second embodiment.

Next, the operation will be described. In the light emitting part 16 of the detection apparatus 41, the measurement light 15 is always irradiated below the boarding point 8 side.

When the bed 33 is close to the doorway 9 of the elevator, and the measurement light 15 is reflected by the bed 33, the reflected light 17a is reflected by the lens 18 and the image forming position detector of the measurement unit 35 ( It is formed in 19). Moreover, when the trolley | bogie 34 approaches the entrance / exit 9 of an elevator, and the measurement light 15 is reflected by the trolley | bogie 34, the reflected light 17b will be formed by the lens 18 at the imaging position of the measuring part 35. It forms in the detection part 19. Thereafter, a detection signal corresponding to the position of the imaging point is output from the imaging position detection unit 19 of the measurement unit 35 to the processing unit 36 as position information. The subsequent operation is the same as that of the first embodiment.

In the doorway device of such an elevator, since the measurement light 15 from the light emitting part 16 is irradiated downward, when the height of a to-be-detected body differs largely like the bed 33 and the trolley | bogie 34, Also, the measurement light 15 can be reflected by the bed 33 and the cart 34. Therefore, each of the bed 33 and the trolley 34 can be detected more reliably.

In addition, since the bed 33 of the high detection area and the cart 34 of the low detection area can be detected by the common detection device 41, the number of the detection devices 41 can be reduced, thereby reducing the manufacturing cost. Can be reduced.

Embodiment 4.

4 is a longitudinal sectional view showing an elevator doorway apparatus according to Embodiment 4 of the present invention. In the figure, a safety shoe 51 extending in the vertical direction is provided at the door closing side end of the door 4 of each car. The safety shoe 51 has a built-in switch (not shown) electrically connected to the door open / close control device. The switch is operated, for example, when the passenger 11 or the like, which is the object to be detected, contacts the safety shoe 51. By operating the switch, an operation signal is output from the switch to the door open / close control device. The door open / close control device controls the door drive device to invert the elevator door 10 in the door opening direction during the door closing operation by input of an operation signal.

In the safety shoe 51, the detection apparatus 12 of the same structure as Embodiment 1 is mounted. The part on the boarding point 8 side of the safety shoe 51 is a transparent plate so that the measurement light 15 from the light emitting part 16 may be irradiated to the boarding point 8 side. The transparent plate is made of plastic or glass. Other configurations and operations are the same as those of the first embodiment.

In the doorway device of such an elevator, since the detection apparatus 12 is mounted in the safety shoe 51, in addition to the detection of the passenger 11 by the detection apparatus 12, the passenger by the detection of the safety shoe 51 is carried out. (11) can be detected more reliably.

Embodiment 5.

Fig. 5 is a longitudinal sectional view showing the doorway device of the elevator according to the fifth embodiment of the present invention. In the figure, the detection apparatus 61 is provided in the door closing side edge part of the door 4 of one cage | basket | car. The detection device 61 has a measuring unit 62 and a processing unit 36 electrically connected to the measuring unit 62. The measuring part 62 and the processing part 36 are provided in the common support body 66 fixed to the door 4 of one car. The measurement part 62 has the 1st light emission part 63 and the 2nd light emission part 64 which are some light emission parts, the lens 18, and the imaging position detection part 19. As shown in FIG.

The lens 18, the imaging position detection unit 19, and the processing unit 36 have the same configuration as the lens 18, the imaging position detection unit 19, and the processing unit 36 in the first embodiment. In the first and second light emitting units 63 and 64, the same light emitting elements as those of the light emitting unit 16 of the first embodiment are used. In this example, the first light emitting portion 63 is disposed above the second light emitting portion 64.

In the cage | basket | car 2, the door opening / closing control apparatus (control device) 55 which controls opening / closing of the doorway 9 of an elevator is provided. The first light emitting unit 63, the second light emitting unit 64, and the processing unit 36 are electrically connected to the door opening and closing control device 65, respectively. The door opening and closing control device 65 is configured to selectively emit the first and second light emitting parts 63 and 64. That is, the control of the door opening / closing control device 65 is the 1st control mode which makes light of the 1st light emitting part 63, and stops light emission of the 2nd light emitting part 64, and the 2nd light emitting part 64. FIG. Can be switched between the second control mode which emits light and stops light emission of the first light emitting section 63.

When the 1st light emission part 63 emits light, the measurement light 15a is irradiated from the 1st light emission part 63 to the boarding point 8 side. Moreover, when the 2nd light emitting part 64 emits light, the measurement light 15b is irradiated from the 2nd light emitting part 64 to the boarding point 8 side.

The detection apparatus 61 is able to detect the to-be-detected body arrange | positioned in the high region located at the predetermined height from the bottom surface of the boarding point 8, and the lower region located below the high region, respectively. Moreover, the detection apparatus 61 detects the to-be-detected body arrange | positioned in the high region, when the door opening / closing control apparatus 65 is set to a 1st control mode, and the door opening and closing control apparatus 65 is a 2nd control mode. In this case, the detected object placed in the lower region is detected. That is, the detection area in the height direction of the detection device 61 is used when the door open / close control device 65 is in the first control mode and when the door open / close control device 65 is in the second control mode. , They differ from each other. In addition, in this example, the to-be-detected body arrange | positioned at the high region is considered the bed 33, and the to-be-detected object arrange | positioned at the lower region is the trolley | bogie 34.

In addition, the reflected light 17a when the measurement light 15a is reflected by the object to be detected and the reflected light 17b when the measurement light 15b is reflected by the object to be detected by the common lens 18. It is supposed to be formed. The position of the imaging point of the reflected light 17a and the position of the imaging point of the reflected light 17b are detected by the common imaging position detection unit 19. The imaging position detection unit 19 outputs a signal (detection signal) corresponding to the position of the imaging point of the reflected light 17a and the reflected light 17b to the processing unit 36 as positional information.

The processing unit 36 has a calculation unit 20 and a determination unit 21. When the door open / close control device 65 is in the first control mode, the calculation unit 20 calculates the distance between the first light emitting unit 63 and the object to be detected based on the input position information. When the door open / close control device 65 is in the second control mode, the distance between the second light emitting part 64 and the object to be detected is calculated and calculated based on the input position information.

The determination unit 21 is a bed (detected object) 33 in the high region based on the calculation value obtained by the calculation unit 20 when the door opening and closing control device 65 is in the first control mode. Is determined, and when the door open / close control device 65 is in the second control mode, the balance (detected object) 34 in the lower region is based on the calculation value obtained by the calculation unit 20. It is supposed to determine the presence or absence. Moreover, the determination part 21 outputs determination information about the presence or absence of the detection of the to-be-detected object determined based on the information from the calculating part 20 to the door opening-closing control apparatus 65. FIG.

The door opening and closing control device 65 is configured to control the opening and closing of the doorway 9 of the elevator based on the determination information from the determining unit 21. That is, the door opening / closing control device 65 is configured such that when the bed 33 is disposed in the high region when in the first control mode, and the bogie 34 is disposed in the lower region when the bed 33 is in the second control mode. In this case, the door drive device is controlled to reverse the elevator door 10 in the door opening direction during the door closing operation. The other configuration is the same as that in the first embodiment.

Next, the operation will be described. When the door opening and closing control device 65 is in the first control mode, only the first light emitting part 63 emits light under the control of the door opening and closing control device 65, so that the measurement light 15a emits the first light emitting part ( 63 is irradiated to the landing 8 side.

When the bed 33 is close to the doorway 9 of the elevator, and the measurement light 15a is reflected by the bed 33, the reflected light 17a is formed by the lens 18 on the image forming position detection unit 19. . The position of the imaging point of the reflected light 17a at this time becomes a position according to the position of the bed 33 with respect to the 1st light emission part 63. FIG.

Thereafter, the position of the image forming point of the reflected light 17a is detected by the image forming position detecting unit 19, and a detection signal corresponding to the position of the image forming point of the reflected light 17a is transmitted from the image forming position detecting unit 19 to the processing unit 36. Is output. Thereafter, in the processing unit 36, the detection signal from the image forming position detecting unit 19 is processed in the same manner as in the first embodiment. As a result, determination information (information on whether or not the bed 33 is in the high-level area) of the presence or absence of the bed 33 in the high-level area is output from the processing unit 36 to the door opening / closing control device 65. .

Thereafter, determination information from the processing unit 36 is input to the door opening and closing control device 65, and the door driving device is controlled by the door opening and closing control device 65 based on the determination information. As a result, the opening and closing operation of the doorway 9 of the elevator is controlled, and when it is detected that the bed 33 is in the high region, the elevator door 10 during the door closing operation is reversed in the door opening direction.

On the other hand, when the door open / close control device 65 is in the second control mode, only the second light emitting part 64 emits light under the control of the door open / close control device 65, and the measurement light 15b emits the second light. It is irradiated from the part 64 to the boarding point 8 side.

When the trolley | bogie 34 approaches the doorway 9 of an elevator, and the measurement light 15b is reflected by the trolley | bogie 34, the reflected light 17b is image-formed by the lens 18 to the imaging position detection part 19. . The position of the imaging point of the reflected light 17b at this time becomes a position according to the position of the trolley | bogie 34 with respect to the 2nd light emission part 64. As shown in FIG.

Thereafter, the position of the image forming point of the reflected light 17b is detected by the image forming position detecting unit 19, and a detection signal corresponding to the position of the image forming point of the reflected light 17b is transmitted from the image forming position detecting unit 19 to the processing unit 36. Is output. Thereafter, in the processing unit 36, the detection signal from the image forming position detecting unit 19 is processed in the same manner as in the first embodiment. As a result, determination information (information on whether or not the trolley 34 is in the lower region) on the presence or absence of the trolley 34 in the lower region is output from the processing unit 36 to the door opening and closing control device 65. .

Thereafter, the determination information from the processing unit 36 is input to the door opening and closing control device 65, and the door driving device is controlled by the door opening and closing control device 65 based on the determination information. Thereby, when opening / closing operation | movement of the entrance / exit 9 of an elevator is controlled, and it is detected that the trolley | bogie 34 is in a lower region, the elevator door 10 during a door closing operation is reversed in a door opening direction.

In the doorway device of such an elevator, the plurality of light emitting parts 63 and 64 are provided in the door 4 of the common car, and the door opening / closing control device 65 selectively selects the light emitting parts 63 and 64. When the light from each of the light emitting sections 63 and 64 is reflected by the object to be detected, imaging of the reflected light is performed by the common lens 18 to detect the position of the imaging point of the reflected light. Since it is performed by the common imaging position detection part 19, the several detection area | region can be ensured by the light emission of each light emission part 63 and 64, and a detection area can be enlarged. In addition, the number of lenses 18 and the imaging position detection unit 19 can be reduced, and the cost can be reduced.

Embodiment 6.

Fig. 6 is a longitudinal sectional view showing the doorway device of the elevator according to the sixth embodiment of the present invention. In Embodiment 5, although the 1st light emission part 63 and the 2nd light emission part 64 are provided in the common support body 66, the 1st light emission part 63 and the 2nd light emission part 64 are each separately. It may be installed on the support of the. That is, in FIG. 1, the 1st support body 67 and the 2nd support body 68 arrange | positioned below the 1st support body 67 are fixed to the door closing side edge part of the door 4 of one cage | basket | car. have. The first support 67 is provided with a first light emitting part 63, a lens 18, an imaging position detecting part 19, and a processing part 36. The second light emitting portion 64 is provided on the second support 68. The other configuration is the same as that in the fifth embodiment.

Even in this manner, the entire detection area can be enlarged by securing a plurality of detection areas. Moreover, cost can be reduced by making common the lens 18 and the imaging position detection part 19.

Embodiment 7.

It is a front view which shows the entrance / exit apparatus of the elevator by Embodiment 7 of this invention. In Embodiment 6, although the 1st support body 67 and the 2nd support body 68 are being fixed to the door 4 of a common car, the 1st support body 67 and the door 4 of different car are different. You may fix the 2nd support body 68, respectively. That is, in the figure, the 1st support body 67 is fixed to the door closing side edge part of the door 4 of one cage | basket | car, and the door closing side edge part of the door 4 of the other cage | basket | car is 2 support body 68 is fixed. The 1st support body 67 and the 2nd support body 68 are arrange | positioned at the substantially same height from the bottom surface of the boarding point 8, respectively.

The first support 67 is provided with a first light emitting part 63, a lens 18, an imaging position detecting part 19, and a processing part 36. The second light emitting portion 64 is provided on the second support 68.

The detection apparatus 61 is able to detect the right width area | region set in the line direction with respect to the width direction of the doorway 9 of an elevator, and the to-be-detected body arrange | positioned in each of the left width area | region. In addition, the detection device 61 detects the object to be disposed in the right width region when the door open / close control device 65 is in the first control mode (only when the first light emitting part 63 emits light). When the door opening / closing control device 65 is in the second control mode (only when the second light emitting part 64 emits light), the detected object is disposed in the left width area. That is, the detection area of the detection device 61 with respect to the width direction of the doorway 9 of an elevator is made when the door opening / closing control device 65 is set to the 1st control mode, and the door opening / closing control device 65 is made into the detection area | region. When in 2 control mode, they differ from each other. In this example, the object to be detected is a bed 33.

Here, since the second light emitting portion 64 and the lens 18 are respectively provided in the doors 4 of the different cars, the position of the second light emitting portion 64 with respect to the lens 18 is different from that of the elevator. It is changed by the opening / closing operation of the doorway 9. Therefore, even when the bed 33 is stopped when the measurement light 15b from the second light emitting part 64 is reflected by the bed 33, the position of the image forming point of the reflected light 17b is determined by Change according to the distance between the doors (4). From this, in this example, the distance between the doors 4 of each car is measured by an inter-door distance measuring device (not shown), and the information of the distance between the doors 4 of each car is corrected. The information is transmitted from the inter-door distance measuring device to the calculation unit 20 as information.

That is, when the door opening / closing control device 65 is in the first control mode, the calculating section 20 is configured to perform the first light emitting section 63 and the detected object based on the positional information from the image forming position detecting section 19. Is calculated by calculating the distance between and based on the positional information from the image forming position detecting unit 19 and the correction information from the distance measuring device between the doors when the door opening and closing control device 65 is in the second control mode. The distance between the second light emitting portion 64 and the object to be detected is calculated and calculated.

The determination part 21 judges the presence or absence of the bed 33 in the right width area | region based on the calculation value calculated | required by the calculating part 20 when the door opening-closing control apparatus 65 is set to the 1st control mode. When the door open / close control device 65 is in the second control mode, the presence or absence of the bed 33 in the left width area is determined based on the calculation value obtained by the calculation unit 20.

The door opening and closing control device 65 is configured to control the opening and closing of the doorway 9 of the elevator based on the determination information from the determination unit 21. That is, the door opening / closing control device 65 has the bed 33 in the left width area when the bed 33 is in the right width area when in the first control mode, and in the left width area when the bed 33 is in the second control mode. When arranged, the door drive device is controlled to reverse the elevator door 10 in the door opening direction during the door closing operation. The other configuration is the same as that in the fifth embodiment.

In the doorway device of such an elevator, a plurality of light emitting parts 63 and 64 are provided in the doors 4 of different cars, respectively, and the door opening / closing control device 65 selectively selects the light emitting parts 63 and 64. When the light from each of the light emitting parts 63 and 64 is reflected by the object to be detected, imaging of the reflected light is performed by the common lens 18 to detect the position of the imaging point of the reflected light. Since the common imaging position detection unit 19 is performed, the light emission of the light emitting units 63 and 64 ensures a plurality of detection regions in the width direction of the doorway 9 of the elevator. The detection area can be enlarged. In addition, the number of lenses 18 and the imaging position detection unit 19 can be reduced, and the cost can be reduced.

In Embodiments 5 to 7, the number of light emitting portions is two, but the number of light emitting portions may be three or more. Thereby, the number of detection areas can be increased and the whole detection area can be further expanded. In addition, the detection area can be further refined, and the detected object can be detected more reliably.

Moreover, in each said embodiment, although the detection apparatus is provided in the door 4 of a cage | basket | car, you may provide a detection apparatus in the door 5 of a boarding point.

Moreover, in each said embodiment, although the measuring part and the processing part of a detection apparatus are integrated, you may isolate a processing part with respect to a measuring part. Moreover, only a measurement part may be provided in the door 4 of a cage | basket | car, and a process part may be mounted in the door open / close control apparatus.

As described above, the present invention can be used, for example, in an elevator doorway device for detecting passengers or the like of a landing.

Claims (6)

According to the position of the light-emitting part which irradiates light to a boarding point side, the imaging optical system for imaging the reflected light when the light from the light-emitting part is reflected by a to-be-detected body, A measuring unit provided in the elevator door having an image forming position detecting unit for generating a signal, and opening and closing the entrance and exit of the elevator, and A processing unit for determining the presence or absence of the detected object in a predetermined detection area on the basis of the signal from the imaging position detection unit, The predetermined detection area is set in the boarding point, the doorway device of an elevator. The method of claim 1, The said elevator door is provided with the said some measurement part arrange | positioned in the up-down direction, The doorway apparatus of the elevator characterized by the above-mentioned. The method of claim 1, The light exiting device of the elevator is characterized in that the light is directed downward. The method of claim 1, The measuring unit is mounted on a safety shoe provided at a door closing side end of the elevator door. The method of claim 1, A plurality of light emitting portions are provided in the common elevator door, Further comprising a control device for selectively emitting each of the light emitting portion, When the light from each of the light emitting portions is reflected from the detected object, the common imaging optical system forms the reflected light, and the common imaging position detection section generates a signal according to the position of the imaging point of the reflected light. The doorway device of an elevator, which is there. The method of claim 1, The doorway of the elevator is opened and closed by a plurality of elevator doors, A plurality of light emitting portions are respectively installed in the different elevator doors, Further comprising a control device for selectively emitting each of the light emitting portion, When the light from each of the light emitting portions is reflected from the detected object, the common imaging optical system forms the reflected light, and the common imaging position detection section generates a signal according to the position of the imaging point of the reflected light. The doorway device of an elevator, which is there.

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