JPH03182492A - Door device for elevator - Google Patents

Abstract

PURPOSE:To efficiently perform the maintenance work by forcefully closing a door when a safety shoe is operated and a full closure detector is not operated after a preset period during the closing of the door, and reporting an abnormality when the safety shoe is still operated even after the full closure detector is operated. CONSTITUTION:When a door closing command is issued from a control device 8, the closing action of a door 3 is performed, and the door 3 is normally closed unless a safety shoe 6 is operated. When a preset period elapses after the safety shoe 6 is kept operated, a door closure reporting unit 9 is excited and reports to remove an obstacle, and the door 3 is closed little by little. If a preset period elapses while the door 3 is not fully closed and the full closure detector 7 is not operated, the full closure detector 10 is excited to report full closure impossibility. When the safety shoe 6 is still operated even after the full closure detector 7 is operated, the abnormality of the safety shoe 6 is reported. The abnormality is reported only when the abnormality occurs on the safety shoe 6 itself, and a wasteful maintenance action can be excluded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The invention of B relates to an elevator door device that notifies an abnormality in a safety tissue of an elevator entrance door.

[Conventional technology]

For example, as shown in Japanese Utility Model Application Publication No. 58-106366, a sliding door for opening and closing an elevator entrance is provided, and a safety shoe is provided at the closing side edge of the sliding door.

In such a door device, a safety shoe is provided to protrude from the edge of the door, and is displaced backward when a foreign object such as a passenger collides with the door when the two doors are closed. Then, the closing operation of the door is controlled via the output of the actuator based on this displacement. Some door devices are equipped with a device that notifies the safety shoe of failure if the output from the two actuators continues for a long time.

[Problem to be solved by the invention]

With the conventional elevator door device as described above, when a tenant of a building equipped with an elevator moves, etc.,
There are cases in which the safety tissue is left in the retracted position when the elevator is being used exclusively, but there is a problem in that this situation is also reported as a failure of the safety tissue.

This invention has been made to solve this problem, and an object of the present invention is to provide an elevator door device that does not notify of a safety shoe abnormality when the safety shoe is intentionally and artificially moved backward for a long period of time. do.

[Means to solve the problem]

The elevator door device according to the present invention includes two fully closed detectors, a control device that forcibly closes the door after a predetermined time period of the safety shoe operation, and outputs an output according to the operation of the fully open detector and the safety shoe. An abnormality alarm activated by the output is provided.

[For production]

If the safety shoe operates while the door of the elevator door device configured as described above is closed, and the fully closed detector does not operate even after a predetermined time period, the door is forcibly closed. Even if the fully open detector operates, if the safety tissue is still operating, a safety tissue abnormality is notified.

〔Example〕

Figures 1 to 3 are diagrams showing one embodiment of the present invention, and in Figure 2, (11 is an elevator car, (2) is an entrance to the elevator car, (3) is a sliding door that opens and closes the entrance and exit (2). (4) installed in the basket (1) to control the door;
II device (having 40 drive units! l! A safety tissue (6a) arranged along the closed side edge and protruding from the edge has two safety tissues (6) at both ends.
Two links are pivotally connected to the door (3) and are arranged parallel to each other, separated from each other. spring,
(6cl is a blocking piece that stands up from the door (3) and prevents the counterclockwise rotation of the link (6a) at a predetermined position; (6d
1 is the design aa of the safety shoe (6), which is a switch fixed to the door (3), which outputs an output when the link (60) rotates clockwise in Fig. 1. (7) To the basket flll. A fully closed detector consisting of a fixed switch is pressed when the door (3) is fully closed by a cam (7 &) fixed to the second door (3). A control device that includes a control program and an emergency control program for the safety shoe (6).
) and RAM (8b), CPU (8c),
It is composed of a computer (8e) with ROM (8dl). (9) is a door close notification device consisting of a broadcasting device, QOI is a fully closing failure notification device, and (11) is a safety tissue abnormality notification device.

The operation of the elevator door device configured as described above will be explained with reference to the flowchart shown in FIG. That is, when the door closing command in step (101) is issued from the control device (8), the door controller (4a), the drive machine (
41,! The door (3) closes via the J sink structure (5).Then, step (102) is performed while the door of the second door (3) is closed.
If the safety shoe (6) does not operate, the door (3) will fully close normally. However, in step (102), if the safety shoe (6) collides with a passenger or the like at the doorway (2) and is displaced backward, and the actuator (6d) is emitting an output, the control device (8) controls the door (3). ) will be stopped, 2 reversed, doors opened, etc. Then, the process moves to step (103), and if the time limit has not elapsed, the process returns to step (102), and if the safety tissue (6) is not operating at this time, the door (3) is fully closed.

In addition, if the safety shoe (6) remains activated in step (102), the process returns to step (1031), and if one time period has elapsed, the process proceeds to step (104), where the 9 door close notification device (9) is energized. A voice will notify you that the door will be closed.This notification is a warning that the door will be opened, and will also notify you not to operate the safety shoe (6) intentionally and to remove any obstacles in the doorway (2).Next, Step (10
5) forces the door (3) to close, but in this case the door will be closed even if the safety shoe (6) remains activated.1 For example, the door (3) may be closed repeatedly in small steps.

Is there a control to gradually close the door while opening it?
The matco is simply controlled to close the door at a slow speed.

Then, moving to step (10B), the door (3) does not fully close, that is, the fully closed detector (7) does not operate, and the door (3) does not fully close.
If the time limit for 107) has not yet passed, repeat step (] 06
), and if the time limit in step (107) has elapsed, the fully closing failure alarm QO1 is activated in step (108). This informs that the door (3) cannot be fully opened due to damage to the link mechanism (5) or the like. Further, if the fully closed detector (7) operates in step (106), that is, one door (3) is fully closed, the process moves to step (109), and if the safety shoe (6) does not operate, the state is determined to be normal. It will be judged. and.

In step (109), if the safety tissue (6) continues to operate (failure of operation 1 (6d),
Due to the deformation of the safety tissue (6), it is unable to return to the extended position while remaining in the backward displacement state, and in this case, the safety tissue abnormality alarm (1) is activated in step (110).
1) is energized and an abnormality in the safety tissue (6) is notified. As a result, an abnormality is notified only when an abnormality occurs in the safety tissue (6) itself, excluding cases where the safety tissue (6) is intentionally moved backward for a long period of time. Therefore, wasteful maintenance actions can be eliminated and maintenance work can be performed efficiently.

〔Effect of the invention〕

As explained above, in this invention, if the safety shoe operates while the door is closed and the fully closed detector does not operate even after a predetermined time limit, the door is forcibly closed. When the safety tissue is operating, a safety tissue abnormality is notified. This has the effect of streamlining the maintenance work in which notification is made only when there is an abnormality in the safety shoe itself.

[Brief explanation of drawings]

FIG. 1 is a conceptual overall configuration diagram showing the elevator door device according to the present invention, FIG. 2 is a conceptual circuit diagram showing the electrical connections shown in FIG. 1, and FIG. 3 is a flowchart explaining the operation of FIG. 1. be. (2) Doorway, (3) Door, (6) Safety tissue,
(ad1 work* W, (71 fully closed detector, (8)-
Control device, (11> Safety tissue abnormality alarm. In addition, the same parts in the two figures are indicated by the same symbols.

Claims (1)

[Claims] A door that opens and closes the entrance, a safety shoe installed on the edge of the closed side of the door, a fully closed detector that operates when the door reaches the end of closing, and a safety shoe that operates when the door reaches the end of closing. Controls the operation of the door when the safety shoe operates,
and a control device that forcibly closes the door after a predetermined time period and outputs an output through the operation of the fully closed detector and the operation of the safety shoe actuator, and a safety shoe energized by the output of the control device. An elevator door device equipped with an abnormality alarm.