JPH0120372Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rope-linked elevator landing door device.

First, a conventional elevator landing door device will be explained with reference to FIG.

In Figure 1, 1 is the door on the drive side of the elevator landing;
2 is a door on the driven side, and these doors 1 and 2 have rollers 5 and 6 pivoted to door hangers 3 and 4 that are connected to a rail 7.
legs 8 rotatably supported on the top and provided at the lower end;
9 is slidably engaged with a sill 10, the rail 7 is fixed to the building via a hanger case 11, and the sill 10 is fixed to the floor of the building. Both ends of an interlocking rope 12 made of wire rope are connected to the door hanger 3 of the door 1 on the drive side, and the interlocking rope 12 is hung on interlocking pulleys 13 and 14 pivotally supported at both ends of the hanger case 11. A door hanger 4 of the door 2 on the driven side is connected to an intermediate portion of the door. Further, on the back side of the door 1 on the drive side, an engaging member (not shown) provided on the elevator car door is provided.
An engagement mechanism 15 and an interlock mechanism 16 are provided which are removably engaged with the interlock mechanism 16.
A bent part of the hook-shaped actuation lever 17 is pivotally supported by the drive-side door 1, a drive roller 18 of the engagement mechanism 15 is pivotally attached to one end of the actuation lever 17, and the other end of the actuation lever 17 is connected. Latch 2 via lever 19
0, and the middle part of the latch 20 is pivotally supported by the door hanger 3 of the door 1 on the driving side. A latch receiver 21 and a detection switch 22 are fixed to a position above the center of the landing entrance of the hanger case 11 via a mounting plate 23, and a locking portion 20a formed at the other end of the latch 20 can be engaged with and detached from the latch receiver 21. The detection switch 22 is latched, and the detection switch 22 is operated by an operating member 24 provided on the latch 20.

In the elevator landing door device configured as described above, when the doors 1 and 2 are closed as shown in FIG. When the car is engaged, the car stops, and the operating lever 15 is activated in conjunction with the opening operation of the car door.
is rotated, the connecting lever 19 is lowered, and the latch 20 is rotated, so that the interlock mechanism 16 is released, and the latch 20 and the latch receiver 21 are unlocked, and the The door 1 on the drive side opens to the left in FIG. Since the interlocking rope 12 moves in conjunction with this, the door 2 on the driven side opens to the right in Fig. 1 in synchronization with the door 1 on the driving side, and the door opens in conjunction with the closing operation of the car door. 1 and 2 are closed, the interlock mechanism 16 performs a locking operation, and the latch 20 is latched to the latch receiver 21. Furthermore, the opening/closing of the door is detected by operating the detection switch 22 via the operating member 24 by the operation of the latch 20 accompanying the opening/closing operation of the drive-side door 1 described above;
Extract as an electrical signal.

In such a rope-linked elevator landing door device, the Building Standards Act generally stipulates that doors 1 and 2 are Class A fire doors, and the interlocking rope 1
2 is made of wire rope, and the interlocking pulleys 13 and 14 used to be made of cast iron or steel plate, but recently plastic ones have come to be used. For this reason, in the event of a fire, the plastic interlocking pulleys 13 and 14 may be damaged by heat or burnout, and the interlocking rope may come off the interlocking pulley, or the interlocking rope 12 may break due to any accident, not limited to plastic interlocking pulleys. or the connection between the terminal and the door hanger 3 of the door 1 on the driving side could come off, and in these cases, the door 2 on the driven side could be opened from the landing side, which was dangerous. .

This idea was made in view of the above-mentioned circumstances, and it prevents the door from being opened from the landing side, and utilizes an interlock mechanism installed on the drive side door to issue an electric signal. By providing a latch and removably locking the door on the driven side, even if an accident occurs such as the interlocking rope coming off the interlocking pulley or being cut, the door on the driven side will not be opened unnecessarily. The purpose of the present invention is to provide a highly safe rope-interlocking elevator landing door device.

Hereinafter, embodiments of this invention will be described with reference to the drawings.

FIG. 2 shows an embodiment of this invention. In Fig. 2, the same reference numerals as in Fig. 1 indicate the same or equivalent parts, and 25 is a locking means, which extends the latch 20 of the interlock mechanism 16 from the locking part 20a in the direction of the driven side door 2. It is formed into a hook shape and is configured to be removably locked to a pin 26 fixed to the door hanger 4 of the driven door 2. When the doors 1 and 2 shown in FIG. b is formed large.

In the door device according to this embodiment configured as described above, the locking means 25 and the pin 26 are engaged and unlocked in conjunction with the engagement and disengagement of the latch 20 and the latch receiver 21 of the interlock mechanism 16. Therefore, the driving side door 1 and the driven side door 2 can be prevented from being opened from the landing side when they are closed, without interfering with the normal opening/closing operation of the doors 1 and 2. Therefore, the interlocking rope 12 comes off or is cut off from the interlocking pulleys 13 and 14, or the interlocking rope 1
2 and the door hanger 3 of the driving side door 1 become disconnected, the driven side door 2 will not open, and safety can be improved. Moreover,
The locking means 25 is formed by extending the latch 20, and the pin 26 is provided on the door hanger 4 of the driven door 2, so the structure is simple and easy to manufacture. In addition, in this embodiment, when the doors 1 and 2 are closed, the interlocking rope 12 Even if the latch expands over time, the locking portion 20a is locked to the latch receiver 21 to prevent locking failure.

FIG. 3 shows another embodiment of this invention. In FIG. 3, the same reference numerals as in FIGS. 1 and 2 indicate the same or corresponding parts, and in this embodiment, the actuating lever 17 to which the driving roller 18 is pivotally mounted is extended in the direction of the driven door 2. A locking means 25 is formed, and this locking means 2
5 is interlocked with the interlock mechanism 16 to be removably locked to the pin 26 on the driven side. The door device of this embodiment also provides the same effect as that shown in FIG. 2 described above.

Note that the configuration of the embodiment shown in FIGS. 2 and 3 other than those described above is the same as that of the conventional one shown in FIG. 1, and therefore a description thereof will be omitted.

As explained above, this invention is an interlock mechanism operated by the movement of the car in a door device for a double-door elevator landing that drives one side door and opens and closes with the other side driven door by interlocking with a rope. In addition, we provided a locking means that removably engages with the door on the driven side in conjunction with this mechanism, so that there is no possibility that the interlocking rope will come off the interlocking pulley, disconnect from the drive side door, or the interlocking rope will Even if the door breaks, the door on the driven side can be prevented from opening, and the structure is simple.

[Brief explanation of the drawing]

FIG. 1 is a rear view showing a conventional elevator landing door device, and FIGS. 2 and 3 are rear views showing elevator landing door devices according to one embodiment and other embodiments of the invention, respectively. 1...Door on the drive side, 2...Door on the driven side, 12...
...Interlocking rope, 13, 14...Interlocking pulley, 15...
...Engagement mechanism, 16...Interlock mechanism, 17...
... Actuation lever, 18 ... Drive lever, 19 ... Connection lever, 20 ... Latch, 21 ... Latch, 2
5... Locking means, 26... Pin. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] In a door device for a double-door elevator hall that drives one side door and opens and closes it together with the driven door on the other side by interlocking with a rope, an interlock mechanism that operates according to the movement of the car is driven in conjunction with this mechanism. A door device for an elevator landing, characterized in that a locking means for releasably locking a side door is provided.