JPH0747450B2 - Elevator car - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a lock device for a return panel incorporated with operation buttons, an operation panel, etc. in a car of an elevator.

[Prior Art] A conventional return panel will be described with reference to FIGS. 3 and 4. FIG. 3 is an inside view of the cab, and FIG. 4 is AA of FIG.
It is a line sectional view, in the figure, 1 is a car, 2 is a car door,
Reference numeral 3 is a return panel incorporating the operation buttons 4 and the like, 5 is a side panel, 6 is a screw for locking the opening / closing of the return panel 3, 7 is a support shaft of the return panel 3, and 8 is an entrance / exit pillar.

In the above-mentioned configuration, the return panel 3 is normally locked by the screw 6 or the like so that it cannot be opened or closed. However, at the time of maintenance and inspection of the operation button 4 or the like, if the screw 6 or the like is removed and the lock is released, the return panel 3 returns. Panel 3 has support shaft 7
The car can be opened and closed inward of the car with the fulcrum as a fulcrum, and maintenance personnel can easily perform maintenance and inspection of the operation buttons and wirings from the inside of the car.

[Problems to be Solved by the Invention] In the above-mentioned configuration, not only is the screw for locking the opening and closing of the return panel appearing on the surface constituting the design of the panel, which is not preferable in terms of design, but the screw is also mischievous. There was a problem of being removed. For this reason, it has been proposed to provide a locking device at the bottom of the return panel so that screws and the like cannot be seen by passengers in the car, as in Japanese Patent Publication No. 55-39518. However, even in this case, the lock device can still be released from the inside of the car, and therefore, the mischief of the passenger cannot be completely prevented.

[Means for Solving the Problems]

The present invention has been made to solve the above problems,
The feature is that during maintenance and inspection of the return panel, a means for stopping the door at a position where the opening width when opening the door is wider than the normal operation by a predetermined space,
The lock device for locking the opening and closing of the return panel is provided at a position on the back side of the return panel that can be operated from the space.

[Action]

According to the present invention, during normal operation, the door stops at a position where its opening width is almost the same as the width of the entrance / exit,
During maintenance and inspection, when a switch for maintenance and inspection is operated, the door stops so that the opening width becomes wider by a predetermined space than during normal operation. Then, by releasing the lock device provided on the rear side of the return panel from that space, the return panel can be opened and closed inward of the car, and maintenance personnel perform maintenance and inspection of the operation buttons etc. from the inside of the car. be able to.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a cross-sectional view of a portion of a car and a hall according to the present invention, and the same portions as those in FIGS. 3 and 4 are designated by the same reference numerals.

In FIG. 1, 10 is a wall of the elevator hall, 11 is a sill on the hall side, 12 is a sill on the car side, 13 is a hall door, 13A is a stop position at the tip of the hall door during normal operation, and 13B is a hall during maintenance inspection. Door end stop position, 2A is the normal car door end stop position, 2B is the car door end stop position during maintenance and inspection, 14 is an auxiliary panel that covers the rear side of the return panel 3, 15
Is a screw for locking, and 16 is a driver.

FIG. 2 is a block diagram of a circuit that controls the stop position of the door. In the figure, 20 is a door opening command device that issues a door opening command when the door opening button is operated, and 21 is a manual operation or an operation in the car. This is a changeover switch that is switched by operating a maintenance / inspection button provided on a panel or the like. The terminal 21a side is closed during normal operation, and the terminal 21b side is closed during maintenance / inspection. 22 is for normal operation,
The first door opening control device that controls the door opening so that the opening width of the door coincides with the width of the entrance / exit of the hall, 23, the opening width of the door becomes wider by a predetermined space portion during maintenance and inspection than in normal operation The second door opening control device 24 performs the door opening control as described above, and 24 is a drive device that drives a door driving motor.

Next, the operation of the present invention having the above configuration will be described.

First, at the time of normal operation, the terminal 21a side of the changeover switch 21 is closed, and the door is controlled by the first door opening control device 22, so the stop positions of the landing door and the tip of the car door at the time of opening the door are 13A respectively. And the positions shown in 2A. Therefore, the screw 15 for locking is not only invisible from the outside, but also there is no fear of being operated by a passenger by mischief.

On the other hand, at the time of maintenance and inspection, when a maintenance person operates an inspection button or the like provided in the car, the changeover switch 21 closes the terminal 21b side, and thereafter the door is controlled by the second door opening control device 23. Therefore, the stop positions of the landing door and the tip of the car door when the door is opened are the positions shown in 13B and 2B, respectively. When the screw 16 is removed by the driver 16 or the like from the space created by this, the return panel 3 fixes the support shaft 7 It can be opened and closed from the inside of the car as a fulcrum, and maintenance personnel can easily inspect the operation buttons and their wiring from inside the car.

Although the return panel 3 is fixed to the auxiliary panel 14 that is in contact with the entrance pillar 8 with the screw 15 in the above embodiment, the auxiliary panel 14 does not necessarily have to be provided and a part of the entrance pillar 8 is extended. The return panel 3 may be fixed with a screw 15 to a bracket or the like that is installed or attached to the entrance / exit post 8. The locking device is not limited to the screw, and various fixing means can be used.

〔The invention's effect〕

According to the present invention, the lock device of the return panel is installed on the back side of the return panel, and the lock position can be released only by performing the maintenance inspection so that the lock can be released. Is completely invisible to passengers,
Not only is it effective for improving the design, but it is impossible for passengers to operate the lock device, so that it is possible to completely prevent unlocking due to mischief.

[Brief description of drawings]

FIG. 1 is a transverse cross-sectional view of a main part of a car and a hall showing an embodiment of the present invention, FIG. 2 is a block circuit diagram of door control according to the present invention, and FIG. 3 is an inside view of a car room showing the embodiment. 4 is a sectional view taken along the line AA of FIG. 1 …… Cars 2 …… Car doors 3 …… Return panel 4 …… Operation buttons 6,15 …… Screws, 7 …… Support shafts 8 …… Entrance / exit posts, 13 …… Hall doors 16 …… Drivers

Claims (1)

[Claims] 1. In an elevator car having a return panel configured to be openable and closable inward of a car, during maintenance inspection, the opening width when the door is opened is wider by a predetermined space than during normal operation. An elevator car comprising: means for stopping the door at a position; and a lock device for locking the opening and closing of the return panel at a position on the back side of the return panel that can be operated from the space.