JP5470717B2 - Elevator door control device - Google Patents

Description

  The present invention relates to an elevator door control device.

Regarding a conventional elevator door control device, a slide door device capable of reliably detecting passengers and luggage without any gap in the detection region is opposed to form an opening at a predetermined interval in the horizontal direction. A sliding door comprising left and right vertical frames provided, an upper horizontal plane and a lower horizontal plane that respectively connect upper and lower ends of the left and right vertical frames, and a door that horizontally opens and closes the opening. The apparatus includes at least a light emitter having a long and continuous light emitting surface provided in the vertical frame, a camera that images the light emitting surface, and an image processing unit that receives an output image of the camera. The light emitting surface of the device is arranged so that the opening is desired, and the camera is known to be arranged on the vertical frame on the side facing the vertical frame provided with the light emitter or on the upper horizontal surface. And it is (for example, see Patent Document 1).
In addition, regarding a conventional elevator door control device, when an object is detected on the door opening / closing path when the door is closed, the door is inverted and provided on the car door panel, between the car panel and the landing panel. A photoelectric sensor disposed so as to be positioned, and the photoelectric sensor includes a projector and a light receiver, and is configured to reversely open the door when an optical axis projected by the projector is blocked by an object. Things are known.

JP 2004-338846 A

In recent years, the number of buildings has risen, and elevators are becoming an important traffic flow for building users. Houses such as condominiums are also becoming higher-rise, and the opportunity for elevators to be used in general life is rapidly increasing.
Elevator door devices are equipped with various sensors to avoid a situation such as an object being caught in the door, but in the situation described above, the performance of avoiding a situation such as an object being caught in the door While improving, it is requested | required to operate | move so that driving efficiency may not be reduced as much as possible.
For the purpose of improving the performance of avoiding a situation such as an object being caught in the door during the door closing operation, for example, a sensor equipped with a camera as disclosed in Patent Document 1 is used to hold the object during the door closing operation. An apparatus for preventing the above has been proposed. Such a sensor can continuously capture the size of an object, and can detect not only an object with a certain size but also a small object at the entrance / exit of an elevator door. It is often applied to an elevator installed in a house such as an apartment for detecting an object.

By the way, the reverse door opening sensor at the time of the door closing operation using the apparatus and photoelectric sensor described in Patent Document 1 as described above is relatively affected by the passenger's hand and luggage passing through the car doorway. It is installed in an easy place, and there is a possibility that the sensor always detects an object due to some abnormality such as a sensor failure, and the door cannot be permanently closed (so-called ON failure).
Therefore, in order to avoid a situation where the door does not close due to such a failure, if the sensor is in a state of continuously detecting an object for a predetermined time, even if the sensor has detected the object, For example, a forced door closing operation such as slowly closing the door while sounding a warning buzzer is often performed.
However, in the conventional elevator door control device disclosed in Patent Document 1, when the above-described forced door opening operation is performed, when a string-like object or the like is caught in the door, the string-like object or the like There is a problem that there is a possibility that the car may travel with the object sandwiched between the doors. On the other hand, if the above-mentioned forced door opening operation is not performed, there is a problem that the door is not closed when the above-described ON failure occurs, and the driving efficiency and convenience for other users are significantly reduced.

  The present invention has been made to solve the above-described problems, and is assumed to detect a small object such as a thin string-like object and a sensor that is supposed to detect a small object such as a thin string-like object. In the elevator door control device equipped with both sensors, the car can be prevented from running while a thin string-like object is sandwiched between the doors, driving efficiency and other It is an object of the present invention to provide an elevator door control device that can prevent a decrease in convenience for the user as much as possible.

In the elevator door control device according to the present invention, the elevator door is movably disposed in the elevator hoistway, the car door provided in front of the car door, the car door provided openably at the car doorway, A landing door provided at a landing door provided at a position facing the car doorway when the car stops at the landing on the landing floor, and in the vicinity of any of the car doorway and the landing doorway. A first reversing door opening sensor that can detect a string-like object, and is provided in the vicinity of either the car doorway or the landing doorway, and does not assume that a string-like object is detected During the door closing operation of the second reversing door opening sensor and the car door and the landing door, at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object. A door control device that controls the door closing operation of the car door and the landing door to stop and open the reversing door when the door is taken out, the door control device comprising: the first reversing door opening sensor; When at least one of the second reversing door opening sensors detects an object continuously for a predetermined time and the first reversing door opening sensor detects an object, the first operation is performed. When the first reversing door opening sensor does not detect an object, a second operation different from the first operation is performed, and the second operation is performed on the car door and the landing door. , Forcibly closing the door at a low speed which is a door closing speed slower than the normal door closing speed, and the first operation is a door closing speed which is slower than the low speed at the car door and the landing door. the forced door closes operation der Ru composed extremely low speed is.
Alternatively, the elevator car can be moved up and down in the elevator hoistway, and the car doorway provided in front of the car, the car door provided openably at the car doorway, and the car stopped at the landing floor When this happens, a landing door provided at a position opposite to the car doorway is provided in the vicinity of either the car doorway or the hall doorway that can be opened and closed, and detects a string-like object. A first reversing door opening sensor that can be provided, a second reversing door opening sensor that is provided in the vicinity of any of the car doorway and the landing doorway, and that is not supposed to detect a string-like object, When at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door, the car door and the landing door A door control device that controls to stop the door closing operation and open the reversing door, wherein the door control device has at least one of the first reversing door opening sensor and the second reversing door opening sensor. When the first reversing door opening sensor detects an object when the object is detected continuously for a predetermined time, the first operation is performed, and the first reversing door opening sensor detects the object. When not detected, a second operation different from the first operation is performed, and the first operation causes the car door and the landing door to move at a door closing speed slower than a normal door closing speed. It is an operation to forcibly close the door at a certain low speed, temporarily stop the door closing operation of the car door and the landing door during the forced door closing operation, and restart the forced door closing operation at the low speed after a certain period of time. The second operation is performed in front of the car door and the landing door. A structure is forced door closes operate at low speed.
Alternatively, the elevator car can be moved up and down in the elevator hoistway, and the car doorway provided in front of the car, the car door provided openably at the car doorway, and the car stopped at the landing floor When this happens, a landing door provided at a position opposite to the car doorway is provided in the vicinity of either the car doorway or the hall doorway that can be opened and closed, and detects a string-like object. A first reversing door opening sensor that can be provided, a second reversing door opening sensor that is provided in the vicinity of any of the car doorway and the landing doorway, and that is not supposed to detect a string-like object, When at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door, the car door and the landing door A door control device that controls to stop the door closing operation and opens the reversing door, and an announcement device that is provided in the car and sounds an announcement, and the door control device includes the first reversing device. When at least one of the door opening sensor and the second reversing door opening sensor detects an object for a predetermined period of time, the first reversing door opening sensor detects the object. When the first reversing door opening sensor does not detect an object, a second operation different from the first operation is performed, and the first operation is performed by the announcement device. The operation is to make a caution announcement sound.
Alternatively, the elevator car can be moved up and down in the elevator hoistway, and the car doorway provided in front of the car, the car door provided openably at the car doorway, and the car stopped at the landing floor When this happens, a landing door provided at a position opposite to the car doorway is provided in the vicinity of either the car doorway or the hall doorway that can be opened and closed, and detects a string-like object. A first reversing door opening sensor that can be provided, a second reversing door opening sensor that is provided in the vicinity of any of the car doorway and the landing doorway, and that is not supposed to detect a string-like object, When at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door, the car door and the landing door A door control device that controls to stop the door closing operation and open the reversing door, wherein the door control device has at least one of the first reversing door opening sensor and the second reversing door opening sensor. When the first reversing door opening sensor detects an object when the object is detected continuously for a predetermined time, the first operation is performed, and the first reversing door opening sensor detects the object. When not detected, a second operation different from the first operation is performed, and the first operation extends a transition time until the forced door closing operation, and a predetermined time has elapsed. The operation of forcibly closing the car door and the landing door later, and the second operation forcibly closing the car door and the landing door without extending the transition time until the forced door closing operation. It is set as the structure which is.
Alternatively, the elevator car can be moved up and down in the elevator hoistway, and the car doorway provided in front of the car, the car door provided openably at the car doorway, and the car stopped at the landing floor When this happens, a landing door provided at a position opposite to the car doorway is provided in the vicinity of either the car doorway or the hall doorway that can be opened and closed, and detects a string-like object. A first reversing door opening sensor that can be provided, a second reversing door opening sensor that is provided in the vicinity of any of the car doorway and the landing doorway, and that is not supposed to detect a string-like object, When at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door, the car door and the landing door A door control device that controls to stop the door closing operation and open the reversing door, wherein the door control device has at least one of the first reversing door opening sensor and the second reversing door opening sensor. When the first reversing door opening sensor detects an object when the object is detected continuously for a predetermined time, the first operation is performed, and the first reversing door opening sensor detects the object. When not detected, a second operation different from the first operation is performed, and the first operation continues to open the car door and the landing door without performing a forced door closing operation. The second operation is an operation for forcibly closing the car door and the landing door.
Alternatively, the elevator car can be moved up and down in the elevator hoistway, and the car doorway provided in front of the car, the car door provided openably at the car doorway, and the car stopped at the landing floor When this happens, a landing door provided at a position opposite to the car doorway is provided in the vicinity of either the car doorway or the hall doorway that can be opened and closed, and detects a string-like object. A first reversing door opening sensor that can be provided, a second reversing door opening sensor that is provided in the vicinity of any of the car doorway and the landing doorway, and that is not supposed to detect a string-like object, When at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door, the car door and the landing door A door control device that controls to stop the door closing operation and open the reversing door, wherein the door control device has at least one of the first reversing door opening sensor and the second reversing door opening sensor. When the object is detected continuously for a predetermined time, the car door and the landing door are forcibly closed, and when the car door and the landing door are fully closed, the first reverse door opening sensor is When the car door and the landing door are fully closed, the starting time until the car starts to move up and down is extended from the normal time, and the first reversing door open sensor detects the object. When not detected, after the car door and the landing door are fully closed, the car starts to move up and down after a normal start-up time.

In the elevator door control device according to the present invention , it is possible to prevent the car from traveling while a thin string-like object is sandwiched between the doors, driving efficiency, and convenience for other users. The effect that the fall of sex can be prevented as much as possible is produced.

  The present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same parts or corresponding parts, and redundant explanations are appropriately simplified or omitted.

Embodiment 1 FIG.
1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a view of an elevator door control device as seen from inside a car, FIG. 2 is a plan view of the elevator door control device, and FIG. FIG. 4 is a flowchart showing a specific operation of the elevator door control device. FIG. 4 is a flowchart showing the concept of operation of the elevator door control device.
In the figure, reference numeral 1 denotes a car 1 which is disposed in an elevator hoistway (not shown) so as to be raised and lowered. A car doorway 2 is provided in front of the car 1. On both sides of the car entrance 2, car entrance upright columns 3 are erected to form both side edges of the car entrance 2. A car entrance top 4 is provided above the car entrance 2 to form an upper edge of the car entrance 2. The car doorway 2 is provided with a pair of car doors 5 that can be opened and closed in the left-right direction.
When the car 1 stops at the landing 6 on the landing floor, a landing door 7 is provided at a position facing the car doorway 2, and a pair of landing doors 8 are provided in the left-right direction at the landing door 7. It can be opened and closed freely.

The left and right car entrance vertical pillars 3 include, for example, a first reversing door provided with a light emitter having a long and continuous light emitting surface as shown in Patent Document 1 described above and a camera for imaging the light emitting surface. Open sensors 9 are respectively provided. Since the first reversing door opening sensor 9 continuously detects the light emitting surface with the camera, for example, a thin string-like object (for example, a thickness) passed from the car 1 side to the landing 6 side. It is a non-contact type sensor that can detect a small object such as 20 mm or less (that is, it is assumed that a string-like object is detected).
A second reversing door opening sensor 10 is attached to the outer surface of the car door 5. The second reversing door opening sensor 10 includes a light projector 10a attached to one of the left and right car doors 5 (here, the right side in FIG. 1) and a light receiver 10b attached to the other car door 5. A non-contact type that detects an object by blocking an optical axis 11 emitted from the light projector 10a toward the light receiver 10b so as to be parallel to the opening / closing direction of the car door 5. It is a sensor.
The second reversing door opening sensor 10 detects an object between the light projector 10a and the light receiver 10b by detecting whether or not the optical axis 11 is interrupted, so that a relatively large object is easily detected. However, it is difficult to always detect a small object such as a thin string-like object (for example, a thickness of 20 mm or less) passed from the car 1 side to the landing 6 side. Not assumed.
A door control device 12 is installed in the upper part of the car 1, and this door control device 12 inputs detection results of the first reverse door open sensor 9 and the second reverse door open sensor 10. And the automatic door opening / closing of the car door 5 and the landing door 8 is controlled. When at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 detects an object during the door closing operation, the car door 5 and the landing door 8 are closed. The operation is stopped and the reversing door is opened.

FIG. 3 is a flowchart showing the concept of operation of the elevator door control device.
First, in step S1, the door control device 12 is in a state where at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 detects an object continuously for a predetermined time. Check if it is. If it is determined in this confirmation that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, a step Proceed to S2. On the other hand, if it is determined that neither the first reversing door opening sensor 9 nor the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, The confirmation in step S1 is repeated until it is determined that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time.
In step S2, the door control device 12 confirms whether or not the first reversing door opening sensor 9 detects an object. If it is determined in this confirmation that the first reversing door opening sensor 9 is detecting an object, the process proceeds to step S3, and the door control device 12 commands the first operation.
On the other hand, when it is determined in step S2 that the first reversing door opening sensor 9 does not detect the object, that is, the object is detected by the second reversing door opening sensor 10. The process proceeds to step S4, and the door control device 12 commands the second operation, which is an operation different from the first operation.
After step S3 or step S4, the process proceeds to step S5 and the series of flows is completed.

In this embodiment, the first operation and the second operation are specifically configured as shown in the flowchart of FIG.
That is, step S11 is the same as step S1 in FIG.
If it is determined in the confirmation in the next step S12 that the first reversing door opening sensor 9 detects an object, the process proceeds to step S13, and the door control device 12 determines that the car door 5 A command is issued to forcibly close the landing door 8 at an extremely low speed, and the car door 5 and the landing door 8 are forcibly closed at an extremely low speed. This operation corresponds to the first operation.
On the other hand, if it is determined in step S12 that the first reversing door opening sensor 9 has not detected an object, the process proceeds to step S14, and the door control device 12 determines that the car door 5 and the car door 5 A command is issued to forcibly close the landing door 8 at a low speed, and the car door 5 and the landing door 8 are forcibly closed at a low speed. This operation corresponds to the second operation. Here, the low speed in step S14 is a door closing speed slower than the normal door closing speed, and the extremely low speed in step S13 is a door closing speed slower than this low speed.
After step S13 or step S14, the process proceeds to step S15, and the series of flows ends.

In the elevator door control apparatus configured as described above, when at least one of the first and second reversing door opening sensors has detected an object continuously for a predetermined time, a thin string When the first reversing door opening sensor that can detect a small object, such as a shaped object, detects an object, and when the first reversing door opening sensor does not detect the object, it differs. By performing the forced door closing operation, it is possible to prevent the car from running while an object such as a thin string-like object is sandwiched between the doors, driving efficiency and other users Can be prevented as much as possible.
Specifically, when at least one of the first and second reversing door opening sensors continuously detects an object for a predetermined time, a small object such as a thin string object is detected. When the first reversing door opening sensor is detecting no object, the door is forcibly closed at a low speed, while when the first reversing door opening sensor is detecting an object, it is at a slower speed. By forcibly closing the door at a very low speed, it is possible to generate a grace time for removing the thin string-like object between the left and right doors detected by the first reversing door opening sensor. Is possible.
As a result, the car can be prevented from traveling while an object such as a thin string-like object is sandwiched between the doors, and the first reversing door opening sensor is not detecting an object. By increasing the forced door closing speed, it is possible to prevent a decrease in driving efficiency and convenience for other users as much as possible.

In addition, as operation | movement of step S13 of FIG. 4, ie, operation | movement when it determines with the 1st inversion door opening sensor detecting the object in confirmation of step S12, a car door and a landing door are extremely low speed. Instead of forcibly closing the door, the car door and the landing door are forcibly closed at a low speed. During this forced door closing, the door closing is temporarily stopped and the forced door closing at a low speed is resumed after a certain period of time. However, the same effect can be expected.
In addition, here, the first reversing door opening sensor is disposed on the car side, and the second reversing door opening sensor is disposed between the car and the landing. What is necessary is just to be arrange | positioned in the vicinity of either of the boarding doors, and it is not restricted to the position demonstrated here.
In addition, when more reversing door opening sensors are installed than in the embodiment described here, the first reversing door is based on whether the sensor can detect a thin string-like object or the like. What is necessary is just to determine which of the open sensor and the second reverse door open sensor should be handled in the same manner.

Embodiment 2. FIG.
FIG. 5 relates to Embodiment 2 of the present invention, and is a flowchart showing the operation of the elevator door control device.
In the second embodiment described here, in the configuration of the first embodiment described above, at least one of the first and second reversing door opening sensors continuously detects an object for a predetermined time. First, the car door and the landing door are forcibly closed. Then, after confirming that the car door and the landing door are fully closed, it is confirmed whether or not the first reversing door opening sensor detects an object, and the first reversing door opening sensor detects the object. If it is determined that the vehicle has been fully closed, the start-up time until the car starts to move up and down after the fully closed state is extended from the normal time.If not, the car is moved up and down after the normal start-up time has elapsed. It ’s what I ’m getting started.

FIG. 5 is a flowchart showing the operation of the elevator door control device in this embodiment.
First, in step S21, as in step S1 of the first embodiment, the door control device 12 is configured such that at least one of the first reverse door open sensor 9 and the second reverse door open sensor 10 continues for a predetermined time. Then, it is confirmed whether or not the object has been detected. If it is determined in this confirmation that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, a step Proceed to S22. On the other hand, if it is determined that neither the first reversing door opening sensor 9 nor the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, The confirmation in step S21 is repeated until it is determined that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time.
In step S22, the door control device 12 outputs a command to forcibly close the car door 5 and the landing door 8 at a low speed, and the car door 5 and the landing door 8 are forced at a low speed. The door is closed and the process proceeds to step S23.
In step S23, the door control device 12 confirms whether or not the car door 5 and the landing door 8 are fully closed, and until it can be confirmed that the car door 5 and the landing door 8 are fully closed. Repeat the check.

If it is confirmed in step S23 that the car door 5 and the landing door 8 are fully closed, the process proceeds to step S24. In step S24, the door control device 12 confirms whether or not the first reversing door opening sensor 9 detects an object. If it is determined in this confirmation that the first reversing door opening sensor 9 has detected an object, the process proceeds to step S25, and the door control device 12 determines that the car door 5 and the landing door 8 are all A signal is output to a control panel (not shown) that controls the overall operation of the elevator so that the startup time until the car 1 starts to move up and down after closing is longer than usual.
On the other hand, when it is determined in step S24 that the first reversing door opening sensor 9 does not detect an object, that is, the object is detected by the second reversing door opening sensor 10. Advances to step S26, and the door control device 12 goes to the control panel so as to start moving the car 1 up and down after a normal start-up time has elapsed after the car door 5 and the landing door 8 are fully closed. And output a signal.
After step S25 or step S26, the process proceeds to step S27, and the series of flows ends.

In the elevator door control apparatus configured as described above, at least one of the first and second reversing door opening sensors detects an object continuously for a predetermined time, and the car door and the landing door are forcibly closed. If it is determined that the first reversing door opening sensor detects an object after it is fully closed, a thin string-like object or the like may be sandwiched between the doors. By extending the startup time until the car starts to move up and down, the passenger in the car presses the door open button to reopen the door, and the first reverse door open sensor detects It is possible to create a grace period for taking measures such as removing a thin string-like object between the left and right doors.
As a result, it is possible to prevent the car from traveling while an object such as a thin string-like object is sandwiched between the doors, and when the first reversing door opening sensor does not detect the object. By setting the normal startup time, it is possible to prevent a decrease in driving efficiency and convenience for other users as much as possible.

Embodiment 3 FIG.
FIG. 6 relates to Embodiment 3 of the present invention and is a flowchart showing the operation of the elevator door control device.
In the third embodiment described here, in addition to the configuration of the first embodiment described above, an announcement device (not shown) that sounds an announcement is provided in the car, and then the first and second inversions are provided. When it is determined that at least one of the door opening sensors has detected an object continuously for a predetermined time, and it is determined that the first reverse door opening sensor detects an object, A notice announcement to call attention to pinching of a string or the like is sounded by the announcement device, and if not, the notice announcement is not sounded.

FIG. 6 is a flowchart showing the operation of the elevator door control device in this embodiment.
First, in step S31, as in step S1 of the first embodiment, the door control device 12 is configured such that at least one of the first reverse door open sensor 9 and the second reverse door open sensor 10 continues for a predetermined time. Then, it is confirmed whether or not the object has been detected. If it is determined in this confirmation that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, a step Proceed to S32. On the other hand, if it is determined that neither the first reversing door opening sensor 9 nor the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, The confirmation in step S31 is repeated until it is determined that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time.
In step S32, the door control device 12 confirms whether or not the first reversing door opening sensor 9 detects an object. If it is determined in this confirmation that the first reversing door opening sensor 9 is detecting an object, the process proceeds to step S33, and the door control device 12 is careful about pinching of a string or the like by the announcement device. Command the caution announcement to sound. As a content of this caution announcement, for example, “the sensor is invalid in the forced door closing mode. At this time, the normal forced door closing operation is also performed. In this case, the timing of the caution announcement sound is just before the forced door closing operation starts, during the forced door closing operation, or the forced door closing operation. It is conceivable that after completion, the car 1 starts moving up and down.
On the other hand, when it is determined in step S32 that the first reversing door opening sensor 9 does not detect an object, that is, it is determined that the second reversing door opening sensor 10 is detecting an object. The process proceeds to step S34, and the door control device 12 instructs the caution announcement not to ring or does not need to perform any special operation, so that no special command is issued. That is, a normal forced door closing operation is performed.
After step S33 or step S34, the process proceeds to step S35, and the series of flows ends.

In the elevator door control apparatus configured as described above, at least one of the first and second reversing door opening sensors detects an object continuously for a predetermined time, and the first reversing door opening sensor If it is determined that the object is detected, it is possible to alert the passenger about pinching of a string or the like by sounding a caution announcement by the announcement device.
As a result, it is possible to prevent the car from traveling while an object such as a thin string-like object is sandwiched between the doors, and when the first reversing door opening sensor does not detect the object. By adopting a normal forced door closing operation, it is possible to prevent a reduction in driving efficiency and convenience for other users as much as possible.

Embodiment 4 FIG.
FIG. 7 is related to Embodiment 4 of this invention, and is a flowchart which shows operation | movement of the control apparatus of an elevator door.
In Embodiment 4 described here, in the configuration of Embodiment 1 described above, at least one of the first and second reversing door opening sensors continuously detects an object for a predetermined time. If it is determined that the first reverse door opening sensor detects an object, the transition time to the forced door closing operation is extended, or the forced door closing operation itself is disabled. The door is not closed, and when it is not, it is shifted to a forced door closing operation as usual.

FIG. 7 is a flowchart showing the operation of the elevator door control device in this embodiment.
First, in step S41, as in step S1 of the first embodiment, the door control device 12 is configured such that at least one of the first reverse door open sensor 9 and the second reverse door open sensor 10 continues for a predetermined time. Then, it is confirmed whether or not the object has been detected. If it is determined in this confirmation that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, a step Proceed to S42. On the other hand, if it is determined that neither the first reversing door opening sensor 9 nor the second reversing door opening sensor 10 has detected an object continuously for a predetermined time, The confirmation in step S41 is repeated until it is determined that at least one of the first reversing door opening sensor 9 and the second reversing door opening sensor 10 has detected an object continuously for a predetermined time.
In step S42, the door control device 12 confirms whether or not the first reversing door opening sensor 9 detects an object. If it is determined in this confirmation that the first reversing door opening sensor 9 has detected an object, the process proceeds to step S43, and the door control device 12 extends the transition time until the forced door closing operation. That is, a command is issued to forcibly close the car door 5 and the landing door 8 after a predetermined time has passed, and the car door 5 and the landing door 8 are forcibly closed after a certain time has elapsed. To do. Alternatively, in step S43, the door control device 12 outputs a command not to perform the forced door closing operation so that the car door 5 and the landing door 8 are not closed.
On the other hand, when it is determined in step S42 that the first reversing door opening sensor 9 has not detected the object, that is, it is determined that the second reversing door opening sensor 10 has detected the object. Proceeds to step S44, and the door control device 12 outputs a command to move to the door closing operation in a normal transition time, that is, to forcibly close the car door 5 and the landing door 8 immediately, The car door 5 and the landing door 8 are forcibly closed immediately.
After step S43 or step S44, the process proceeds to step S45, and the series of flows ends.

In the elevator door control apparatus configured as described above, at least one of the first and second reversing door opening sensors detects an object continuously for a predetermined time, and the first reversing door opening sensor If it is determined that the object is detected, the first inversion is performed by extending the transition time to the forced door closing operation or by disabling the forced door closing operation itself so as not to close the door. It is possible to generate a grace time for taking measures such as removing a thin string-like object between the left and right doors detected by the door open sensor.
As a result, it is possible to prevent the car from traveling while an object such as a thin string-like object is sandwiched between the doors, and when the first reversing door opening sensor does not detect the object. By adopting a normal forced door closing operation, it is possible to prevent a reduction in driving efficiency and convenience for other users as much as possible.

  In addition, it cannot be overemphasized that the effect demonstrated by each embodiment can be compounded by implementing combining each embodiment described above.

It is the figure which looked at the control apparatus of the elevator door in Embodiment 1 of this invention from the inside of a passenger car. It is a top view of the control apparatus of the elevator door in Embodiment 1 of this invention. It is a flowchart which shows the concept of operation | movement of the control apparatus of the elevator door in Embodiment 1 of this invention. It is a flowchart which shows the specific operation | movement of the control apparatus of the elevator door in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the control apparatus of the elevator door in Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the control apparatus of the elevator door in Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the control apparatus of the elevator door in Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Car entrance 3 Car entrance stand column 4 Car entrance top plate 5 Car door 6 Platform 7 Platform entrance 8 Platform door 9 1st inversion door open sensor 10 2nd inversion door open sensor 10a Floodlight 10b Light receiver 11 Optical axis 12 Door control device

Claims (8)

A car that can be raised and lowered in the elevator hoistway and has a car entrance in front of it.
A car door that can be freely opened and closed at the car doorway;
A landing door provided at a landing doorway provided at a position facing the car doorway when the car stops at the landing on the landing floor;
A first reversing door opening sensor provided in the vicinity of either the car doorway or the landing doorway, and capable of detecting a string-like object;
A second reversing door opening sensor that is provided in the vicinity of either the car doorway or the landing doorway, and is not supposed to detect a string-like object;
The door of the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door. A door control device that controls to stop the closing operation and open the reversing door,
In the door control device, when at least one of the first reverse door open sensor and the second reverse door open sensor detects an object for a predetermined time, the first reverse door open sensor Is detected, and when the first reversing door opening sensor is not detecting an object, a second operation different from the first operation is performed.
The second operation is an operation of forcibly closing the car door and the landing door at a low speed that is a door closing speed slower than a normal door closing speed,
The control device for an elevator door, wherein the first operation is an operation for forcibly closing the car door and the landing door at an extremely low speed which is a door closing speed slower than the low speed. A car that can be raised and lowered in the elevator hoistway and has a car entrance in front of it.
A car door that can be freely opened and closed at the car doorway;
A landing door provided at a landing doorway provided at a position facing the car doorway when the car stops at the landing on the landing floor;
A first reversing door opening sensor provided in the vicinity of either the car doorway or the landing doorway, and capable of detecting a string-like object;
A second reversing door opening sensor that is provided in the vicinity of either the car doorway or the landing doorway, and is not supposed to detect a string-like object;
The door of the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door. A door control device that controls to stop the closing operation and open the reversing door,
In the door control device, when at least one of the first reverse door open sensor and the second reverse door open sensor detects an object for a predetermined time, the first reverse door open sensor Is detected, and when the first reversing door opening sensor is not detecting an object, a second operation different from the first operation is performed.
In the first operation, the car door and the landing door are forcibly closed at a low speed that is slower than a normal door closing speed, and the car door and the landing door are operated during the forced door closing operation. Is the operation of temporarily stopping the door closing operation, and restarting the forced door closing operation at a low speed after a certain period of time,
2. The elevator door control device according to claim 2, wherein the second operation is an operation of forcibly closing the car door and the landing door at the low speed. A car that can be raised and lowered in the elevator hoistway and has a car entrance in front of it.
A car door that can be freely opened and closed at the car doorway;
A landing door provided at a landing doorway provided at a position facing the car doorway when the car stops at the landing on the landing floor;
A first reversing door opening sensor provided in the vicinity of either the car doorway or the landing doorway, and capable of detecting a string-like object;
A second reversing door opening sensor that is provided in the vicinity of either the car doorway or the landing doorway, and is not supposed to detect a string-like object;
The door of the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door. A door control device that controls to stop the closing operation and open the reversing door;
An announcement device provided in the car and ringing the announcement;
In the door control device, when at least one of the first reverse door open sensor and the second reverse door open sensor detects an object for a predetermined time, the first reverse door open sensor Is detected, and when the first reversing door opening sensor is not detecting an object, a second operation different from the first operation is performed.
The control device for an elevator door, wherein the first operation is an operation for sounding a caution announcement by the announcement device. A car that can be raised and lowered in the elevator hoistway and has a car entrance in front of it.
A car door that can be freely opened and closed at the car doorway;
A landing door provided at a landing doorway provided at a position facing the car doorway when the car stops at the landing on the landing floor;
A first reversing door opening sensor provided in the vicinity of either the car doorway or the landing doorway, and capable of detecting a string-like object;
A second reversing door opening sensor that is provided in the vicinity of either the car doorway or the landing doorway, and is not supposed to detect a string-like object;
The door of the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door. A door control device that controls to stop the closing operation and open the reversing door,
In the door control device, when at least one of the first reverse door open sensor and the second reverse door open sensor detects an object for a predetermined time, the first reverse door open sensor Is detected, and when the first reversing door opening sensor is not detecting an object, a second operation different from the first operation is performed.
The first operation is an operation of extending the transition time until the forced door closing operation and forcibly closing the car door and the landing door after a predetermined time has elapsed.
The second operation is an operation for forcibly closing the car door and the landing door without extending a transition time until the forced door closing operation. A car that can be raised and lowered in the elevator hoistway and has a car entrance in front of it.
A car door that can be freely opened and closed at the car doorway;
A landing door provided at a landing doorway provided at a position facing the car doorway when the car stops at the landing on the landing floor;
A first reversing door opening sensor provided in the vicinity of either the car doorway or the landing doorway, and capable of detecting a string-like object;
A second reversing door opening sensor that is provided in the vicinity of either the car doorway or the landing doorway, and is not supposed to detect a string-like object;
The door of the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door. A door control device that controls to stop the closing operation and open the reversing door,
In the door control device, when at least one of the first reverse door open sensor and the second reverse door open sensor detects an object for a predetermined time, the first reverse door open sensor Is detected, and when the first reversing door opening sensor is not detecting an object, a second operation different from the first operation is performed.
The first operation is an operation of continuously opening the car door and the landing door without performing a forced door closing operation,
The control device for an elevator door, wherein the second operation is an operation for forcibly closing the car door and the landing door. A car that can be raised and lowered in the elevator hoistway and has a car entrance in front of it.
A car door that can be freely opened and closed at the car doorway;
A landing door provided at a landing doorway provided at a position facing the car doorway when the car stops at the landing on the landing floor;
A first reversing door opening sensor provided in the vicinity of either the car doorway or the landing doorway, and capable of detecting a string-like object;
A second reversing door opening sensor that is provided in the vicinity of either the car doorway or the landing doorway, and is not supposed to detect a string-like object;
The door of the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object during the door closing operation of the car door and the landing door. A door control device that controls to stop the closing operation and open the reversing door,
The door control device forcibly opens the car door and the landing door when at least one of the first reversing door opening sensor and the second reversing door opening sensor detects an object continuously for a predetermined time. If the first reversing door opening sensor detects an object when the car door and the landing door are fully closed, after the car door and the landing door are fully closed, the car When the first reversing door opening sensor does not detect an object, the normal starting time after the car door and the landing door are fully closed is extended. A control device for an elevator door, wherein the elevator car starts to move up and down after a lapse. The first reverse door opening sensor is:
A light emitter having a long and continuous light emitting surface;
The elevator door control device according to any one of claims 1 to 6 , further comprising a camera that images the light emitting surface. The second reversing door opening sensor is
A projector that is attached to one of the left and right car doors and emits an optical axis so as to be parallel to the opening and closing direction of the car door;
The elevator door control device according to any one of claims 1 to 7 , further comprising: a light receiver that is attached to the other car door and receives an optical axis emitted from the light projector.

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