JPS5815436B2 - Elevator door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a degamma device for an elevator.

Generally, in an elevator door device, a car door and a landing door are engaged with each other at necessary times and opened and closed by a drive device provided on the car.

A door safety device is installed on the surface of the car door facing the landing door and protrudes in the door closing direction, and if the door comes into contact with an elevator passenger, etc. during the door closing operation, the door safety device will be activated. The door is designed to reverse or stop.

However, in order to reduce equipment costs, this safety device is provided only at the door of the car, and is placed near the door of the car.

For this reason, there was a drawback that it would not work if a passenger's arm or the like was caught only in the door of the landing.

Further, when the door is opened, a child or the like may get their fingertips caught in the gap between the landing door and the doorway frame, but this also has the disadvantage that the device does not operate.

Further, the upper part of the door is usually movably supported, and the lower part is guided by a groove provided in the sill.

For this reason, foreign objects such as pebbles may get into the groove, making it impossible to open the door, but in this case too, the safety device does not operate, and an overcurrent flows through the drive device, causing the electrical equipment to There was a problem that caused accidents such as burnout.

This invention solves the above-mentioned drawbacks, and is intended for use in elevators having a detection device that operates when the movement of at least one of the car door and the landing door, which are driven and mutually closed and closed, is obstructed. The present invention seeks to provide a door device.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In the figure, 1 is a hook, 1a is a foot and entrance, 1b is a guide groove provided at the bottom 1 of the car entrance 1a, 2 is a sliding car door, and 2a is a guide groove provided at the bottom of this. 1
3 is the entrance/exit of the landing, 3a is the entrance/exit of the landing, 4 is the door of the landing consisting of a sliding door, and 4a is the entrance/exit of the landing. Guide groove 3
5 is a door driving device provided on the car 1; 6 is a link device connected to this; 7 is attached to the door 2 of the car and is actuated by a predetermined operation of the link device 6. 8 is a board provided on the surface of the landing door 4 facing the car door 2 and arranged vertically apart from each other, and 9 is a board provided respectively on this and arranged with through grooves 9a facing each other. Support devices 10 are attached to both sides of each board 8, and 10 is an engaging body having an L-shape in cross section. There is.

Reference numeral 11 denotes support legs having a Z-shaped cross section, the upper surface of which is fixed to the engaging body 10, and is arranged above and below 9, respectively.
The lower surface of the letter is loosely fitted into the through groove 9a of the support device 9.

11a is a V-shaped recess provided in the support leg 11, 12 is a holding device whose one end is pivotally supported by the substrate 8, and the intermediate portion ζ is a trochanter 12a arranged in the recess 11a is pivotally mounted. has been done.

Reference numeral 13 denotes a member having both ends erected from the substrate 8, and a pressing body consisting of a compression coil spring held at the free end of the holding device 12; 14 is attached to the substrate 8, and the actuating portion is connected to the holding device 12. The detecting device 15 is comprised of a switch that is in contact with the support leg 11, and the detecting device 15 is a blocker fixed to the substrate 8 and provided at opposite ends of the support leg 11, respectively.

That is, the engaging body 10 is connected to the landing door 4 via the supporting legs 11.
The landing door 4 is moved by the trochanter 12a of the holding device 12, which is arranged movably in the opening/closing direction, and which is normally pressed by the pressing body 13 and arranged in the recess 11a of the support leg 11.
The engaging body 10 is held in a predetermined position by the engaging elements T by rotation of the link device 6 by the driving machine 5.
is clamped, the car door 2 and the landing door 4 are engaged, and both are opened and closed together.

In this case, in response to normal opening/closing resistance of the landing door 4, the pressing body 1
3 sets the pressing force.

When the landing door 4 comes into contact with a passenger while the door is closed, or a foreign object such as a pebble gets into the guide groove 3a and the closing operation of the landing door 4 is restricted, an overload is applied to the operating body 10. As a result, the actuating body 10 is displaced with respect to the landing door 4 against the holding force of the holding device 12.

This displacement causes the trochanter 12a to move vertically through the recesses 11,a, and the detection device 14 operates via this movement.

By this operation, the drive unit 5 is controlled by a control device (not shown) to stop or reverse and open the door.

An accident in which a passenger was trapped in door 4 of the landing in this way,
Further, it is possible to prevent an accident in which the electric equipment is damaged due to restriction of the operation of the landing door 4.

Moreover, the load that is applied when the landing door 4 comes into contact with a passenger corresponds to the mass of the landing door 4, and the load corresponding to the car door 2 and the link device 6 does not act on the passenger. It is possible to reduce the contact force applied to the

Further, this contact force does not increase depending on the rotational position of the link device 6 at the time of contact.

In addition, even if the fingers of an infant or the like are caught in the gap between the landing door 4 and the edge of the entrance/exit 3 while the door is open, the landing door 4
The door opening operation is restricted and the detection device 14 operates.

Therefore, although a detailed explanation will be omitted, the same effect can be obtained when the door is opened as when the door is closed.

6 to 8 show other embodiments of the present invention. In the figures, the same reference numerals as in FIGS. 1 to 5 indicate corresponding parts, and 8 is a board fixed to the door 2 of the car; 9 10 is an engaging body fixed to the door 4 of the landing, 11 is a support plate disposed on the car door 2, and 7 is an engaging element attached to this.

12 is a holding device, 13 is a pressing body, 14 is a detection device, 15
are blockers, and are arranged on the substrate 8, respectively.

That is, the engager 12 is connected to the door 2 via the support plate 11.
The car door 2 is disposed movably in the opening/closing direction of the car door 2 through a support device that is normally pressed by the pressing body 13.
is held in place.

Therefore, when the operation of the car door 2 during opening and closing is restricted, the support plate 11 is displaced relative to the car door 2, and the detection device 1
4 works.

Therefore, although a detailed explanation is omitted, when the opening/closing operation of the car door 2 is restricted, the first to
The same effect as the embodiment shown in FIG. 5 can be obtained.

In addition, as another example, the support plate 11 shown in FIGS. 6 and 7 is arranged on the car door 2, and the engaging body 10 having the leg piece 11 shown in FIGS. 4 and 5 is arranged on the landing door 4. It is clear that this provides the effects of both of the embodiments shown in FIGS. 1 to 5 and 6) to 8.

As explained above, the present invention provides a door device having a car door and a landing door that are opened and closed by being engaged with each other by an engaging element and an engaging body, in which at least one of the engaging element and the engaging body is displaced relative to the door. The door device is arranged such that it can be arranged so that it is always held at a predetermined position, and when the opening/closing operation of the door is restricted, the detection device is operated to control the door device.

This prevents accidents that may occur during boarding when the door operation is restricted by an object such as a passenger or a foreign object that has entered the door device.
It is possible to prevent accidents that would otherwise occur, and it is also possible to reduce the contact force that acts on the passenger.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of essential parts of an elevator showing an embodiment of an elevator door device according to the present invention, FIG. 2 is a front view of the car in FIG. 1, and FIG. 3 is a rear view of the landing shown in FIG. 1. , 4th
The figure is an enlarged view of part ■ in Figure 3, Figure 5 is a right side view of Figure 4,
FIG. 6 is a diagram showing another embodiment of the elevator door device according to the present invention.
The right side view in the figure and FIG. 8 are rear views of the landing corresponding to FIG. 6 and are equivalent to FIG. 3. 2... Car door, 4... Landing door, 5... Door driver, 6... Link device, 7... Engagement element, 8... Board, 9...
...Support device, 9a...Through groove, 10...Engagement body, 11...
...Support leg, 11a...Recess, 12...Holding device, 12a
... Trochanter, 13 ... Pressing body, 14 ... Detection device, 15 ...
...blocker. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. In a door device that opens and closes the corner door and the landing door together by engaging an engaging body placed on one of the corner door and the landing door with an engaging element placed on the other, the top door a support device provided on at least one of the car door and the field door and configured to be displaceable in the opening/closing direction with respect to the door; In contrast, a holding device that always holds the supporting device in a predetermined position and a detecting device that moves when the supporting device is displaced against the holding force of the blocking device, A door device for an elm island, characterized in that when at least one of the gougers ρ is mounted on the support device and is overloaded by the other, this overload is detected through the displacement of the support device.