JPH03293283A - Door device for elevator - Google Patents

Abstract

PURPOSE:To open and close a door silently and quickly by detecting clearance between an engaging plate and an engaging body engaging with the plate accompanied with driving the door, and controlling driving speed of the door of an elevator cage according to the output. CONSTITUTION:When an elevator cage 9 is reached to a floor, the length of clearance G between an engaging plate 13 and an engaging body 8 is detected with a detector 21. Nextly, when the output of the detector 21 is sent to a driving speed control means 22 of an elevator cage door 11 and the door 11 is opened from full closing condition by the length of clearance G between the plate 13 and the body 8, a door opening speed pattern is instituted so as to lower the door opening speed. Meanwhile, when the door is closed from full opening condition and the door 11 is reached to the position of the length of clearance G between the plate 13 and the body 8, the closing speed is lowered, hereafter, the door closing speed is raised again and the full closing condition is attained. The elevator cage door 11 is closed along this door closing pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application in Industry-1-] The present invention relates to an elevator door device for opening and closing an elevator entrance, and particularly relates to an improvement in door opening/closing degree control.

[Prior art] An elevator door closing device is a door closing device for an elevator car.
A door closing machine equipped with an electric motor, a speed control switch, and an engagement mechanism for the elevator car door and the landing door, and the electric motor is controlled by a control panel in the machine room to open and close the elevator car door and the landing door synchronously. It is. Currently, most commonly used door closing mechanisms use a door closing machine mounted on the elevator car to open and close the elevator car door, and simultaneously open and close the landing door using a gripping mechanism. As a conventional elevator door device of this kind, Japanese Patent Application Laid-Open No. 123-1983
An example of this technique is disclosed in Japanese Patent No. 791.

Figure 5 is a front view of the conventional landing door seen from the hoistway side;
The figure is a front view of a conventional elevator car door seen from the landing side, and Figure 7 is a cross-sectional view showing a conventional elevator door device.
FIG. 8 is a characteristic diagram showing a door opening speed pattern of a conventional elevator car door, and FIG. 9 is a characteristic diagram showing a door closing speed pattern of a conventional elevator car door.

In the figure, (1) is the hoistway, and (2) is the hoistway (1).
) is the entrance/exit of the landing area that leads to (3), which leads to the entrance/exit of the landing area (
2), the landing door is movably installed in the horizontal direction on a door rail (4) whose two ends are fixed to the wall of the hoistway (1-); (5) is installed on the landing door (3); Support plates (7) and (8) fixed with bolts (6) through elongated holes (5a) extending in the direction of movement are pivotally supported on the support plate (5) at predetermined intervals, and (1) This is an engager consisting of a roller protruding toward the side. (9) is an elevator car arranged in the hoistway (1), and (10) is the elevator car (
The entrance/exit (1) of 9) is provided at the entrance/exit (10) of the elevator car (9), and its two ends are connected to the elevator car (1).
The elevator car door (13) is constructed so as to be movable in the lateral direction of the door rail (12) fixed to the door rail (9), and the cross section of the elevator car door (13) is L-shaped. An engagement plate (14) fixed to the ) side is arranged parallel to the engagement plate (13), and the lower end of the engagement plate is pivoted to the elevator car door (11).

(15) is the entrance/exit (10) of the elevator car (9)
A driving machine (16) is fixed to the upper part of the driving machine (1).
The encoder (1, 7) fixed to the rear shaft end of 5) is a link mechanism that transmits the force of the drive machine (15) to the elevator car door (11) and the engagement plate (14).

Next, the operation of the conventional elevator door device configured as described above will be explained.

When the elevator car (9) goes up or down, the landing door (3)
) and the elevator car door (11) are fully closed, and the engaging plate (1-3) and the engaging plate (1) of the elevator car door (11) are completely closed.
4) are separated from the engaging element (8) and engaging element (7) of the landing door (3), respectively.

That is, when the elevator car (9) passes through the landing, these engaging elements (7), engaging elements (8), engaging plates (13),
The engagement plates (14) can run without contacting each other.

At this time, a gap G is formed between the engaging element (8) and the engaging plate (13) as shown in FIG.

Next, when the elevator car (9) lands on the landing, the drive machine (15) rotates and the elevator car door (11) is opened via the link mechanism (17).

At this time, the engagement plate (14) rotates, and the engagement plate (13)
The engagement plate (14) has an engagement element (8) and an engagement element (7), respectively.
Hold these by touching them. In this state, the elevator car door (11) moves in the door opening direction, so the landing door (3) also moves in the door opening direction in conjunction with this.

On the other hand, when closing the door from the open state, the movement is opposite to that described in "-", and the landing door (3) also moves in the closing direction in conjunction with the movement of the elevator car door (11), and the elevator car door closes. (11) and the landing door (3) are fully closed, the engagement plate (14) rotates via the link mechanism (17) and the engagement plate (1
, 3) and the engaging element (8), and the engaging plate (i-4) and the engaging element (7).
) is released.

By the way, at the beginning of the door opening, the elevator car door (11) moves through the gap G between the engaging element (8) and the engaging plate (13), and then the engaging plate (13) comes into contact with the engaging element (8), and the landing door opens. (3)
begins to open the door. At this time, the engagement plate (13) engages the engagement member (
8) A collision sound occurs when it comes into contact with the object. In order to suppress this collision noise and maintain quietness during door opening, it is necessary to open the elevator car door (11) at a low speed before and after the collision. On the other hand, when opening the door, the landing door (3) precedes the elevator car door (11) by the gap G and completes closing. At this time, in order to suppress the sound of the landing door (3) colliding with the contact surface of the landing entrance (2), at least the G
It is necessary to close the door slowly from the front by the length of . Therefore, the opening/closing speed of the elevator car door (11) is determined by the output (rotational distance,
(rotational speed).

[Problems to be Solved by the Invention] Since the conventional elevator door device is configured as described above, the gap G between the engaging plate (13) and the engaging element (8) is determined from the viewpoint of opening/closing performance of the door. It is preferable that it is narrower so that it can be opened and closed more quickly.
There is a possibility that the engaging element (8) and the engaging element (7) may collide with each other.

In addition, the positions of the engagement elements (7) and (8) on each floor vary depending on the mounting position, and the size of the gap G differs depending on each floor. Therefore, Figures 8 and 9
The opening/closing pattern of the door in the figure needs to take into account the maximum value of the variation in the gap G, and set the low-speed running range of C in FIG. 8 and D in FIG. 9. As a result, the low-speed travel range becomes longer, the door opening/closing time becomes longer, and the operating efficiency of the elevator decreases. On the other hand, if the low-speed running range is shortened, the collision speed between the engagement plate (13) and the engagement element (8) when the door opens, and the collision speed between the landing door (3) and the landing entrance (2) when the door is opened.
The collision speed with the contact surface increases and a collision sound is generated.
I couldn't open or close the door quietly.

Therefore, an object of the present invention is to provide an elevator door device that can be opened and closed quietly and quickly.

[Means for Solving the Problems] An elevator door device according to the present invention includes an engagement plate provided on an elevator car door driven by a drive machine, and an engagement plate provided on a landing door that engages the engagement plate as the door opens and closes. A detector detects the gap between the plywood and the engaging element, and the opening/closing speed of the elevator car door is controlled in accordance with the output of the detector.

[Operation] In the present invention, the gap between the engagement member of the hall door and the engagement plate of the elevator car door is detected by a detector for each floor. Depending on this output, the minimum necessary door speed is required to suppress the collision noise between the engaging element and the engagement plate when the door is opened, and the collision noise between the landing door and the contact surface of the landing entrance when the door is opened. A running range is set for each opening, and the opening/closing speed is controlled according to this speed pattern.

As a result, the door can be opened and closed quietly, and the low-speed driving range can be kept to the necessary minimum, so the opening and closing speed can be increased.

[Example 1] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

FIG. 1 is a cross-sectional view of an elevator door device according to an embodiment of the present invention, FIG. 2 is a characteristic diagram showing a door opening speed pattern of an elevator car door according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of an elevator car door device according to an embodiment of the present invention. It is a characteristic diagram which shows the door closing speed pattern of the elevator car door by one Example. In the figure, the same reference numerals as those in FIG. 7 are the same as or corresponding to the conventional components, so the explanation thereof will be omitted here.

In the figure, (21) is a detector attached to the engagement plate (13), which detects the length of the gap G between the engagement plate (13) and the engagement element (8) in a non-contact manner.

The output of this detector (21) is sent to a speed control means (22) that controls the opening and closing of the elevator doors, and becomes the output of the drive machine (15).

Next, the operation of the elevator door device of this embodiment configured as described above will be explained.

When the elevator car (9) reaches the floor, the detector (2)
1) detects the length of the gap G between the engagement plate (13) and the engagement element (8). Next, the output of this detector (21) is sent to the opening/closing speed control means (22) of the elevator car door (11), and the elevator car door (11) changes from the fully closed state to the engagement plate (
The door opening speed pattern is set so that the door opening speed becomes low when the door is opened to the length of the gap G between the engaging element 13) and the engaging element (8). This is shown in FIG. That is, after the door (11) of the elevator car (9) starts to open, the engagement plate (13)
) and the engaging element (8), the door opening speed becomes low once at point A where the door is opened by the length of the gap G, and after passing through that point, the door opening speed is -
1- Ascend. The elevator car doors (1-:+-) are opened along this door opening speed pattern. This is a speed control means (22) that controls the opening and closing of elevator doors.
The signal from the detector (21) is input, and the driver (
15), specifically, performs map control of the door opening speed pattern shown in FIG.

On the other hand, when closing the door from the fully open state, as shown in FIG. (Point B in Fig. 3), the speed becomes low, and then the door closing speed increases again to a fully closed state. The elevator car door (11) is closed along this door closing speed pattern. At this time, the speed control means (22) controls the detector (21).
In response to the signal, the drive unit (15) is map-controlled according to the door closing speed pattern shown in FIG.

In this way, the gap G between the engagement plate (13) and the engagement element (8)
By detecting the length of each floor, it is possible to grasp the position where the speed should be lowered, and the opening/closing speed can be increased in other parts, improving the opening/closing performance of the door compared to conventional methods. Can be done.

By the way, in the first embodiment, the length of the gap G between the engagement plate (13) and the engagement element (8) is measured using a non-contact detector (21).
), but a contact type detector can also be used as shown in FIG.

1 FIG. 4 is a cross-sectional view of an elevator door device according to another embodiment of the present invention. In the figure, the same reference numerals as in FIG. 1 indicate parts that are the same as or correspond to the constituent parts of the embodiment described above.

In the figure, (31) is the engagement element (8) of the engagement plate (13).
This is a contact type detector consisting of a tape switch, etc. attached to the surface facing the surface.

In this case, when the elevator car door (11) starts to open and the detector (31) comes into contact with the engager (8), the encoder (16) directly connected to the rear shaft end of the drive machine (15) is detected. )
The position of the elevator car door (11) is calculated based on the rotation angle of , and the door opening speed pattern shown in FIG. 2 is set. Further, when the door is opened, the door closing speed pattern shown in FIG. 3 is similarly set. Thereafter, the elevator car door (11) is opened and closed in the same manner as in the previous embodiment.

In this way, the elevator door device of each of the above-mentioned embodiments minimizes the gap G between the engagement plate (13) provided on the elevator car door (11) and the engagement element (8) provided on the landing door (3). The elevator car door (11) is detected by the detector (21) or the detector 2 (31), and the elevator car door (11) is
The opening/closing speed is controlled by setting an opening/closing speed pattern.

Therefore, according to the above embodiment, there are two detectors on each floor.
1) Alternatively, the detector (31) detects whether the engaging member (8) of the landing door (3) and the engaging plate (13) of the elevator car door (11)
) is detected, and according to this output, the collision sound between the engaging element (8) and the engaging plate (13) when the door is opened, and the sound of the collision between the landing door (3) and the landing entrance ( 2) A low-speed driving range can be set for each floor to suppress the sound of collision with the contact surface. Therefore, the opening/closing speed can be slowed down at other positions, so the opening/closing can be done quietly and quickly.

By the way, the detector (21) and the detector (31) of each of the embodiments described in Section 2 are connected to the engagement plate (13) of the elevator car door (11).
), but when implementing the present invention, the present invention is not limited to this, and the same effect can be obtained even if it is attached to the landing door (3) side.

In addition, the engaging plate (13) and the engaging element (8) of each embodiment described in 2.
The gap G with the elevator car (9) is detected by the detector (21) or the detector (31) each time the elevator car (9) arrives at each floor. However, when implementing the present invention,
However, the value of the gap G between the engaging plate (13) and the engaging element (8) on each floor is stored in advance in the opening/closing control device, and the opening/closing speed pattern is set for each floor. It is also possible to open and close the

In addition, when installing the elevator, the engagement plate (13) and the engagement element (8) are detected by the detector (21), the detector (31), etc.
), and measure the gap G between the engager (7) and the engager (8).
It is also possible to adjust the size of the gap G to be the same on each floor by moving the support plate (5) to which the support plate is attached in the opening/closing direction.

According to this, it is only necessary to set one opening/closing speed pattern.

[Effects of the Invention] 4 As described in -1 below, the elevator door device of the present invention uses a detector to detect the gap between the engagement plate provided on the elevator car door and the engagement element provided on the landing door, Since the opening/closing speed of the car door is controlled according to the output of this detector, the gap between the engagement plate of the hall door and the engagement plate of the elevator car door detected by the detector for each floor Depending on the value of A low speed range can be set. Therefore, the door can be opened and closed quietly and quickly.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an elevator door device according to an embodiment of the present invention, FIG. 2 is a characteristic diagram showing a door opening speed pattern of an elevator car door according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of an elevator car door device according to an embodiment of the present invention. A characteristic diagram showing the door closing speed pattern of an elevator car door according to one embodiment, FIG. 4 is a cross-sectional view of an elevator door according to another embodiment of the present invention, and FIG. Fig. 6 is a front view of a conventional elevator car door seen from the landing side, Fig. 7 is a cross-sectional view showing a conventional elevator door device, and Fig. 8 is a conventional elevator car door. FIG. 9 is a characteristic diagram showing the door closing speed pattern of a conventional elevator car door. In the figure, 3: Hall door 7, 8: Engagement element 9: Elevator car 1B, 14: Engagement plate 15: Drive machine 16: Encoder 21. 31: Detector. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] An elevator car door having an engagement plate protruding from the landing side; a predetermined gap maintained between the engagement plate of the elevator car door and the engagement plate engaged with the engagement plate as the elevator car door opens and closes; a landing door with an engaging element projecting thereon; a detector for detecting a gap between the engaging plate of the elevator car door and the engaging element of the landing; and controlling the opening/closing speed of the elevator car door in accordance with the output of the detector. An elevator door device characterized in that it comprises an opening/closing speed control means.