JPH11322212A - Manual lowering apparatus for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manual lowering apparatus for an elevator which can facilitate lowering operation of an elevator car by operating a manual lowering switch, has good appearance despite the manual lowering switch fixed next to a call button, and to prevent the manual lowering switch from being operated erroneously or by mischief. SOLUTION: A call button 2 for calling an elevator car 7 is fitted to an elevator hall 1 and a manual lowering switch is fixed next to the call button 2. A cover plate capable of open and close is formed with an opening part. With the cover plate closed, the call button 2 is positioned at the opening part of the cover plate and exposed to the outside. With the cover plate closed, the manual lowering switch is shielded with the cover plate. With the cover plate opened, the manual lowering switch is exposed to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator manual lowering device for manually forcibly lowering an elevator during a power failure.

[0002]

2. Description of the Related Art Conventionally, a control panel is provided at a high position above a landing door on a wall of an elevator landing on the first floor, and a manual lowering switch is provided on the control panel when a power failure occurs. However, in this conventional example, since the control panel is provided at a high position above the landing door to operate the manual lowering switch, the control panel is placed on a chair or a stepladder and the lid of the control panel is opened to manually operate the switch. You must operate the descent switch. Therefore, there is a problem that the operability in an emergency is extremely poor. Therefore, the wiring of the manual lowering switch is lengthened to facilitate the operation of the manual lowering switch, and after opening the cover of the control panel, the wiring of the manual lowering switch is lowered to bring the manual lowering switch to the hand. However, even if this is done, it is necessary to open the lid of the control panel at a high place and pull down the wiring of the manual lowering switch to the hand, and the operability is still poor.

Japanese Patent Laid-Open Publication No. Hei 8 (1996) -1996 discloses a system in which a call button for calling an elevator is provided on one side wall of a landing door, and an emergency operation device is provided on the other side wall of the landing door. 29
Although it is known from Japanese Patent No. 0874, an emergency driving device is arranged beside the call button on the side of the landing door,
There is a problem that the emergency driving device is exposed in the most conspicuous place and the appearance of the elevator platform is deteriorated, and the emergency driving device is exposed at a height that can be easily touched by humans. Since they are provided, there is a problem that they are erroneously operated or tampered with.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to easily operate a manual lowering switch to lower an elevator car apparatus by manual operation. An object of the present invention is to provide a manual lowering device for an elevator which has a good appearance and prevents the manual lowering switch from being operated erroneously or mischievously despite the provision of a manual lowering switch next to the button. It is assumed that.

[0005]

The elevator manual lowering device according to the present invention is provided with a call button 2 for calling an elevator car device 7 at an elevator platform 1 and a manual lowering switch 3 adjacent to the call button 2. The cover plate 4 is provided with an opening 4a. The cover button 4 is closed and the call button 2 is positioned in the opening 4a of the cover plate 4 so that the call button 2 is exposed to the outside. The manual lowering switch 3 is shielded by the cover plate 4 with the cover 4 closed, and the manual lowering switch 3 is exposed to the outside with the cover plate 4 opened. With this configuration, although the manual lowering switch 3 is provided next to the call button 2, the manual lowering switch 3 is normally hidden by the cover plate 4 so that only the call button 2 is exposed and The presence of the descent switch 3 cannot be seen from the outside, so that it is possible to prevent the descent switch 3 from being manipulated by mischief or from being erroneously operated. By exposing, the manual lowering switch 3 arranged next to the call button 2
Can be easily operated.

[0006] A lifting device is constituted by the hydraulic jack 5, and a voltage is applied to operate the hydraulic unit 6 of the hydraulic jack 5 to lower the car unit 7 of the elevator. A lifting line 9 for operating the hydraulic unit 6 of the hydraulic jack 5 to raise the elevator car device 7 by applying the voltage is provided.
It is preferable to connect the battery 10 via the manual lowering switch 3 to the battery. With such a configuration, by operating the manual descent switch 3 in an emergency such as a power failure, voltage is applied from the battery 10 via the descent line 8 and the elevator car device 7 is forcibly lowered. Will be done.

Further, by applying a voltage, the hydraulic unit 6 of the hydraulic jack 5 is operated to operate the elevator car device 7.
As a lowering line 8 for lowering
a, a high-speed descending line 8b, and a low-speed ascending line 9a as an ascending line 9 for operating the hydraulic unit 6 of the hydraulic jack 5 to raise the elevator car device 7 by applying a voltage. , A high-speed ascending line 9b, and a battery 1 through a manual descending switch 3 to a low-speed descending line 8a.
It is preferable to connect 0. With such a configuration, the elevator car device 7 is moved up and down at a high speed such as high speed descent and high speed up, or ascends and descends at a low speed such as low speed descent and low speed ascent according to a demand of a customer. And in the event of an emergency such as a power failure, operating the manual descent switch 3
A voltage is applied from 0 to the elevator car 7 through the low-speed descending line 8, and the elevator car 7 is forcibly lowered at a low speed, and the elevator car 7 can be lowered at a safe low speed. .

[0008]

Embodiments of the present invention will be described below.

FIG. 1 is a schematic perspective view of an elevator apparatus, in which an elevator passage 11 is formed in a building over upper and lower floors. In the elevator passage 11, an elevator car apparatus 7 is provided so as to be able to move up and down. It is arranged. A stand 29 is fixed to the bottom of the elevator passage 11, and a pair of guide rails 12 is erected on the stand 29. The stand 29 has a hydraulic jack 5
The lower end of the extendable jack portion 13 is fixed.
The extendable jack portion 13 is configured such that a plurality of rods are fitted deeply and shallowly, and a valve built in the hydraulic unit 6 is opened and closed, so that the jack portion 13 is extended and contracted by hydraulic pressure. The upper end of the rod at the tip of the jack portion 13 is fixed to the elevator car device 7, and a guide (not shown) provided in the elevator car device 7 is slidably fitted into the guide rail 12. Therefore, by opening and closing a valve built in the hydraulic unit 6, the jack unit 13 is expanded and contracted by hydraulic pressure to raise and lower the elevator car device 7 in the elevator passage 11.

An elevator platform 1 is provided on each floor of the building. An opening 14 is provided in each of the walls of the elevator passage 11 of the elevator landing 1 on each floor, and a landing door frame 15 is attached to the opening 14, and a landing door 16 is mounted on the landing door frame 15. It is attached to open and close freely. And the landing door frame 15 provided on each floor
1 above the landing door frame 15 provided on the first floor,
A control panel 17 is attached as shown in FIG.

A call button 2 for calling an elevator car device to a corresponding floor is provided on a landing door frame 15 of the elevator landing 1 on each floor or on a wall of each floor. The call button 2 is attached to the call button plate 18, and the call button 2 is arranged on the landing door frame 15 or the wall of each floor by attaching the call button plate 18 to the landing door frame 15 or the wall of each floor. Is what is done. Here, the call button plate 18 attached to the landing door frame 15 on the first floor or the wall on the first floor.
3 and 4, a call button 2 and a manual lowering switch 3 are provided adjacent to the call button 2. As shown in FIG. A cover plate 4 is further openably and closably mounted on the landing door frame 15 on the first floor provided with the call button 2 and the manual lowering switch 3 or on the call button plate 18 on the wall on the first floor.
In the embodiment shown in the accompanying drawings, the cover plate 4
When the cover plate 4 is attached to be freely opened and closed, one end of the cover plate 4 is rotatably supported on one end of the call button plate 18, and the cover plate 4 is turned to overlap the call button plate 18. It is designed to be closed and opened by turning in the opposite direction. Of course, when the cover plate 4 is attached to the call button plate 18 so that it can be opened and closed, the cover plate 4 is not limited to the one that pivotally opens and closes as described above. The cover plate 4 may be freely opened and closed by freely locking, and may be further freely opened and closed by any other means. In the embodiment shown in FIG. 4, when the cover plate 4 is rotated and closed by the magnetizing means 28 such as a magnet, the cover plate 4 is magnetically attached to the call button plate 18 to maintain the closed state. It is like that. Of course, the closed state of the cover plate 4 may be held by holding means other than the magnet,
Further, the closed state of the cover plate 4 may be locked using a key.

An opening 4a is provided in the cover plate 4, and the call button 2 is inserted into the opening 4a of the cover plate 4 in a state where the cover plate 4 is closed and is exposed to the outside. When the cover plate 4 is closed, the manual lowering switch 3 is shielded by the cover plate 4 so as not to be exposed to the outside. Therefore, in the state where the cover plate 4 is closed, the presence of the manual lowering switch 3 cannot be recognized from outside, and only the call button 2 is exposed,
The appearance is good, and there is no danger of operating the manual descent switch 3 by mistake in a normal use state, and there is no danger that a child or the like will operate the manual descent switch 3 by mischief.

In the present invention, the elevator device is constituted by the hydraulic jack 5 as described above. The hydraulic unit 6 of the hydraulic jack 5 includes a hydraulic pump (not shown) and a recovery tank (not shown). ), And respective valves (not shown) for lowering and ascending are provided. The descending valve is opened and closed by a descending electromagnetic solenoid, and the ascending valve is opened and closed by an ascending electromagnetic solenoid. As shown in FIG. 5, the hydraulic unit 6 is connected to a descending line 8 for applying a voltage to the descending electromagnetic solenoid, and an ascending line 9 for decreasing the voltage to the ascending electromagnetic solenoid and the hydraulic pump. The control of the opening and closing of each valve and the drive control of the hydraulic pump are performed depending on whether or not a voltage is applied to each electromagnetic solenoid.

In the present invention, the lowering valve includes a low-speed lowering valve and a high-speed lowering valve, and the lowering valve includes a low-speed raising valve and a high-speed raising valve. And a valve for use. In other words, both descent and ascent can be performed at two speeds, low speed and high speed. In addition, as the electromagnetic solenoid for lowering, there is provided an electromagnetic solenoid for low speed lowering for opening and closing a valve for lowering speed, and an electromagnetic solenoid for high speed lowering for opening and closing a valve for high speed lowering, As the ascending electromagnetic solenoid, a low-speed ascending electromagnetic solenoid for opening and closing a low-speed ascending valve and a high-speed ascending electromagnetic solenoid for opening and closing a high-speed ascending valve are provided. As the descending line 8, a low-speed descending line 8a for applying a voltage to the low-speed descending electromagnetic solenoid and a high-speed descending line 8b for applying a voltage to the high-speed descending electromagnetic solenoid are provided. And
As the ascending line 9, a low-speed ascending line 9a for applying a voltage to the low-speed ascending electromagnetic solenoid and a high-speed ascending line 9b for applying a voltage to the high-speed ascending electromagnetic solenoid are provided. .

By operating operation buttons such as low speed lowering, high speed lowering, low speed raising, and high speed raising provided in the elevator car device 7, a voltage is applied to any one of the above electromagnetic solenoids. Thus, the elevator car apparatus 7 can be selected and moved up and down at low speed or high speed or low speed or high speed. For example, when an elderly person or a physically handicapped person uses an elevator, by selecting low speed descent and low speed ascent, it is possible to drive with less shaking and shock associated with ascent and descent, and in normal use, It is possible to move up and down at high speed by selecting high speed down and high speed up. Note that the low-speed operation and the high-speed operation are switched in advance and set to either the low-speed operation mode or the high-speed operation mode.
One of the low-speed operation mode and the high-speed operation mode may be operated.

A battery 10 is connected to the descending line 8 via the manual descending switch 3 described above. Then, in an emergency such as a power failure, open the cover plate 4 and
The manual lowering switch 3 is exposed and the manual lowering switch 3 is operated. When the switch is operated by operating the manual lowering switch 3, a voltage is applied to the lowering electromagnetic solenoid via the lowering line 8. Thus, the lowering valve is opened, and the elevator car device 7 is forcibly lowered to the first floor. Here, in the present invention, the lowering line 8 includes a low-speed lowering line 8a and a high-speed lowering line 8b.
When the manual lowering switch 3 is operated, the elevator car device 7 slowly lowers at a low speed and operates the manual lowering switch 3 so that the emergency operation such as a power failure occurs. The elevator car device 7 can be lowered at a very low speed.

The battery 10 is provided in a control panel 17 provided above the landing door frame 15 on the first floor.

[0018]

As described above, according to the first aspect of the present invention, a call button for calling an elevator car device is provided at an elevator platform, and a manual lowering switch is provided adjacent to the call button. Opening / closing the cover plate with an opening and placing the call button in the cover plate opening with the cover plate closed, exposing the call button to the outside, and manually operating the cover plate with the cover plate closed Since the lowering switch is shielded and the manual lowering switch is exposed to the outside with the cover plate open, the manual lowering switch is usually provided by the cover plate even though the manual lowering switch is provided next to the call button. Only the call button is exposed and hidden, so that the presence of the manual lowering switch is not visible from the outside and the appearance is better. Since the manual lowering switch is hidden by the plate, it is possible to prevent the manual lowering switch from being manipulated with mischief or being erroneously operated, and also to open the cover plate in case of power failure etc. By exposing the manual descent switch,
The manual descent switch arranged next to the call button in an easily operable position can be easily operated, so that an emergency operation can be easily and reliably performed.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, a lifting device is constituted by a hydraulic jack, and a hydraulic unit of the hydraulic jack is formed by applying a voltage. A lowering line for operating and lowering the elevator car unit and a raising line for operating the hydraulic unit of the hydraulic jack by applying a voltage to raise the elevator car unit are provided for lowering. Since the battery is connected to the line via a manual lowering switch, with a simple configuration, by operating the manual lowering switch in an emergency such as a power outage, the voltage is applied from the battery via the lowering line and the elevator The car unit can be forcibly lowered.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, by applying a voltage, the hydraulic unit of the hydraulic jack is operated to lower the elevator car device. As a line for lowering, a line for low speed lowering and a line for high speed lowering are provided, and as a rising line for operating the hydraulic unit of the hydraulic jack by applying voltage to raise the elevator car device. A low-speed ascending line and a high-speed ascending line are provided, and a battery is connected to the low-speed descending line through a manual descent switch.
You can choose to go up and down at a high speed called fast ascending, or you can go up and down at a low speed called slow descent and slow ascending.Moreover, in the event of an emergency such as a power failure, you can operate the manual descent switch to remove from the battery. A voltage is applied through the low speed descending line, and the elevator car device is forcibly lowered at a low speed, so that the elevator car device can be lowered at a safe low speed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an elevator according to the present invention.

FIG. 2 is a front view of an elevator hall on the first floor of the above.

FIG. 3 is a front view showing a state where the cover plate is closed.

FIG. 4 is a perspective view showing a state where the cover plate is opened.

FIG. 5 is a schematic explanatory view of the hydraulic jack of the same.

[Explanation of symbols]

 Reference Signs List 1 elevator landing 2 call button 3 manual lowering switch 4 cover plate 4a opening 5 hydraulic jack 6 hydraulic unit 7 elevator car device 8 descending line 8a low speed descending line 8b high speed descending line 9 ascending line 9a low speed ascending line 9b High-speed ascending line 10 Battery

Claims (3)

[Claims] 1. A state in which a call button for calling an elevator car device is provided at an elevator landing, a manual lowering switch is provided adjacent to the call button, an opening is provided in an openable and closable cover plate, and the cover plate is closed. The call button is positioned in the opening of the cover plate to expose the call button to the outside, and the manual lowering switch is shielded by the cover plate when the cover plate is closed, and the manual lowering switch is opened when the cover plate is opened. A manual elevator lowering device characterized by being exposed to the air. 2. A lift device comprising a hydraulic jack,
Applying a voltage to operate the hydraulic unit of the hydraulic jack to lower the elevator car device, and applying a voltage to operate the hydraulic jack hydraulic unit to raise the elevator car device And a battery for connecting the battery to the lowering line via a manual lowering switch.
An elevator manual lowering device as described. 3. A low-speed lowering line and a high-speed lowering line are provided as lowering lines for lowering an elevator car device by operating a hydraulic unit of a hydraulic jack by applying a voltage. By applying a voltage, a low speed ascending line and a high speed ascending line are provided as ascending lines for operating the hydraulic unit of the hydraulic jack to elevate the elevator car device, and a manual descending switch is provided to the low speed descending line. 3. The manual lowering device for an elevator according to claim 2, wherein a battery is connected to the elevator.