JP2001063932A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device capable of exhausting smoke from a hoistway to the outside during a fire in a hoist machine or a control panel set on the hoistway. SOLUTION: A driving means such as a hoist machine 4 or a control panel 19 having elevator driving electric equipment 24 is provided in a hoistway 1. an exhaust device 30 communicated with the outside of the hoistway 1 is provided above the installation position of the driving electric equipment 24. A fire detector 31 is provided corresponding to the driving electric equipment 24 so that a smoke exhaust control device can operates the exhaust device 30 via the operation of the fire detector 31. The exhaust device 30 is operated with the operation of the fire detector 31 and the smoke exhaust control device during a fire in the driving electric equipment 24 to exhaust smoke. Smoke is free from spreading to a landing 16 and an elevator car 2 and so passengers can be easily evacuated from the elevator car.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus in which a car moving up and down a hoistway is operated by driving means such as a hoisting machine and a control panel installed in the hoistway.

[0002]

2. Description of the Related Art FIG. 5 is a longitudinal sectional view conceptually showing a conventional elevator apparatus disclosed in Japanese Patent No. 2877745, for example. In the figure, 1 is a hoistway, 2 is a car that moves up and down a predetermined route of the hoistway 1, 3 is a counterweight disposed on one side of a horizontal plane in the hoistway 1, 4 is a hoist, and 4 is a hoisting machine. , And a drive sheave 6 is provided.

[0003] Reference numeral 7 denotes a first car pulley provided on one side of the lower part of the car 2, 8 denotes a second car pulley provided on the other side of the lower part of the car 2, and 9 denotes an upper part of the counterweight 3. A counterweight pulley 10 is connected to the upper part of the hoistway 1 via a horizontal axis so as to be arranged at a position corresponding to the car second pulley 8, and 11 is an upper part of the hoistway 1 via the horizontal axis. It is a counterweight pulley that is pivotally mounted and arranged at a position corresponding to the counterweight pulley 9.

[0004] Reference numeral 12 denotes a main rope, one end of which is connected to the upper part of the hoistway 1 by a first rope stopper 13 disposed on the ceiling of the hoistway 1 corresponding to the car first pulley 7 and descends. It is wound around the first pulley 7 and the car second pulley 8 and rises, is wound around the car side pulley 10, descends and is wound around the drive sheave 6, rises and winds around the counterweight side pulley 11. Hung,
It descends and is wound around the counterweight pulley 9 and rises, and the other end is connected to the upper part of the hoistway 1 by the second rope stopper 14 disposed on the ceiling of the hoistway 1 corresponding to the counterweight pulley 9. Have been.

[0005] Reference numeral 15 denotes a car door for opening and closing the entrance of the car 2, 16 is a lowest floor landing of a building 17 provided with the hoistway 1, and a landing door 18 for opening and closing the entrance of the landing is provided.
It faces the car door 15 when necessary. Reference numeral 19 denotes an elevator control panel installed on the bottom surface 5 of the hoistway 1 and connected to the hoisting machine 4.

FIG. 6 shows, for example, Japanese Patent Application Laid-Open No. 9-1521.
It is a longitudinal cross-sectional view conceptually showing another conventional elevator apparatus disclosed in Japanese Patent Publication No. 55-55. In the figure, the same reference numerals as those in FIG. 5 described above denote corresponding parts, and reference numeral 20 denotes a machine room provided above the hoistway 1 so as to protrude from the building 17, in which the hoisting machine 4 and the control panel 19 are installed. A main rope 12 is wound around the drive sheave 6 and has one end directly connected to the car 2 and the other end directly connected to the counterweight 3.

Reference numeral 21 denotes a hoistway pressurizing fan provided in the building 17 and communicating with the hoistway 1. Reference numeral 22 denotes a smoke exhaust fan provided in the machine room 20 and communicating with the outside air from the hoistway 1 and the machine room 20. The fire detector provided in building 17 is used for building 1
7 detects the fire occurrence and operates.

The conventional elevator apparatus is constructed as described above, and the hoisting machine 4 is energized by the output of the control panel 19 to rotate the drive sheave 6 to drive the car 2 and the counterweight via the main rope 12. 3 ascend and descend in opposite directions. Further, in the elevator device shown in FIG.
Are arranged in the hoistway 1, so that an independently provided machine room is omitted, and the space for the elevator device in the building 17 is saved.

In the elevator apparatus shown in FIG. 6, the operation of the fire detector 23 when a fire occurs in the building 17 causes the hoistway pressurizing fan 21 and the smoke exhaust fan 2 to operate.
2 is energized. As a result, smoke is discharged from the hoistway 1 by the operation of the smoke exhaust fan 22, and the pressure in the hoistway 1 is increased by the operation of the hoistway pressurizing fan 21. Not to enter.

[0010]

In the conventional elevator apparatus as described above, the hoisting machine 4 and the control panel 19 are installed in the machine room 20 in the elevator apparatus shown in FIG. When a fire occurs in the driving means such as the machine 4 and the control panel 19, the smoke of the fire rarely spreads to the hoistway 1 and the landing 16.

However, in the elevator apparatus shown in FIG. 5, since the driving means such as the hoisting machine 4, the control panel 19 and the like are installed in the hoistway 1, the driving of the hoisting machine 4, the control panel 19 and the like should be performed. If a fire occurs in the means, the smoke of the fire may flow in the direction of arrow A shown in FIG. 5 and enter the car 2 and the landing 16, so it was necessary to prevent this.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and when a fire occurs in a driving means such as a hoisting machine or a control panel installed in a hoistway, smoke of the fire is discharged from the hoistway. An object of the present invention is to obtain an elevator device that can be discharged to the outside.

[0013]

SUMMARY OF THE INVENTION In an elevator apparatus according to the present invention, a hoistway of an elevator in which a car moves up and down, and a drive electric device provided in equipment constituting driving means of the elevator and installed in the hoistway. Equipment, an exhaust device provided on the hoistway and disposed above the installation position of the driving electric device and communicated outside the hoistway, a fire detector installed corresponding to the driving electric device, and A smoke control device for operating the exhaust device by the operation of the fire detector.

[0014] In the elevator apparatus according to the present invention, the exhaust device is disposed on a wall of the hoistway that is separated from the entrance of the car on the horizontal projection plane of the hoistway.

Further, in the elevator apparatus according to the present invention, a smoke collector provided so as to cover at least the upper part of the driving electric device, a lower end communicating with the smoke collector, and an upper end connected to the smoke exhaust control device. A duct is provided.

In the elevator apparatus according to the present invention, an exhaust window door that opens and closes an exhaust window provided with an exhaust device, and an exhaust window door drive that is urged by a smoke exhaust control device to open the exhaust window door. Machine is provided.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 3 are views showing an example of an embodiment of the present invention. FIG. 1 is a longitudinal sectional view conceptually showing an elevator device, FIG. 2 is a cross-sectional plan view of a main part of FIG. 1, and FIG. It is a principal part control circuit diagram of 1 elevator apparatus. In the figure, 1 is a hoistway, 2 is a car that moves up and down a predetermined route of the hoistway 1, 3 is a counterweight disposed on one side of a horizontal plane in the hoistway 1, 4 is a hoist, and a drive sheave 6 are provided on the bottom surface 5 of the hoistway 1.

Reference numeral 7 denotes a first car pulley provided on one side of the lower part of the car 2, 8 denotes a second car pulley provided on the other side of the lower part of the car 2, and 9 denotes an upper part of the counterweight 3. A counterweight pulley 10 is connected to the upper part of the hoistway 1 via a horizontal axis so as to be arranged at a position corresponding to the car second pulley 8, and 11 is an upper part of the hoistway 1 via the horizontal axis. It is a counterweight pulley that is pivotally mounted and arranged at a position corresponding to the counterweight pulley 9.

Reference numeral 12 denotes a main rope, one end of which is connected to the upper part of the hoistway 1 by a first rope stopper 13 disposed on the ceiling of the hoistway 1 corresponding to the car first pulley 7 and descends. It is wound around the first pulley 7 and the car second pulley 8 and rises, is wound around the car side pulley 10, descends and is wound around the drive sheave 6, rises and winds around the counterweight side pulley 11. Hung,
It descends and is wound around the counterweight pulley 9 and rises, and the other end is connected to the upper part of the hoistway 1 by the second rope stopper 14 disposed on the ceiling of the hoistway 1 corresponding to the counterweight pulley 9. Have been.

Reference numeral 15 denotes a car door that opens and closes the entrance of the car 2, 16 denotes a lowest floor landing of a building 17 provided with the hoistway 1, and a landing door 18 that opens and closes the entrance of the landing is provided.
It faces the car door 15 when necessary. Reference numeral 19 denotes an elevator control panel installed on the bottom surface 5 of the hoistway 1 and connected to the hoisting machine 4.

Reference numeral 24 denotes a driving electric device provided in a device constituting driving means of the elevator including the hoisting machine 4 or the control panel 19 installed in the hoistway 1, and 25 denotes a smoke collecting body. 1 is formed by an enclosure consisting of a plate body disposed on the lower surface of the drive electric device 24 and covering the upper surface and side surfaces of the drive electric device 24, and an insertion hole 26 for the main rope 12 is provided on the upper surface. 27 is a duct whose lower end communicates with the smoke collector 25 and whose upper end is arranged at the upper end of the hoistway 1.

An exhaust window 28 is disposed at the upper end of the hoistway 1 and communicates with the duct 27. The exhaust window 28 is disposed on the wall of the hoistway 1 away from the entrance of the car 2 on the horizontal projection plane.
Reference numeral 29 denotes an exhaust window door for opening and closing the exhaust window 28. The exhaust window door is normally disposed at a position shown by a chain line in FIG. Reference numeral 30 denotes an exhaust device having an exhaust fan as a main part. The exhaust device 30 is provided in an exhaust window 28 and communicates with the outside of the hoistway 1 to exhaust air in the hoistway 1 to the outside.

A fire detector 31 is provided in the enclosure 25 and operates by detecting a fire. 32 is an exhaust window door 29
, An exhaust window drive unit 33 for operating the exhaust device 30, a fire detector 31, a smoke exhaust control device connected to the exhaust window door drive device 32, and a smoke exhaust emergency power source for energizing the smoke exhaust control device 33 Then, the smoke exhaust control device 33 is operated at the time of a power failure of a normal power supply (not shown).

In the elevator apparatus constructed as described above, the hoisting machine 4 is energized by the output of the control panel 19 to rotate the drive sheave 6 and to drive the car 2 and the counterweight 3 via the main rope 12. Move up and down in opposite directions. Then, when a fire occurs in the driving electric device 24 provided in the driving means such as the hoisting machine 4 or the control panel 19, the fire detector 31 operates. As a result, the smoke control device 33 operates to urge the exhaust device 30 and the exhaust window door driving device 32.

Then, by the operation of the exhaust device 30 and the opening of the exhaust window door 29 by the operation of the exhaust window door driving device 32, the smoke in the smoke collecting body 25 is discharged to the duct 2 as shown by the arrow B in FIG.
7, the air is exhausted from the exhaust window door 29 to the outside of the hoistway 1. At this time, the air in the hoistway 1 flows into the smoke collector 25 from the insertion holes 26 and the like. Therefore, the smoke of the fire does not spread in the hoistway 1, in the hall 16 or in the car 2 direction, and the passengers in the car 2 and the waiters in the hall 16 can be easily evacuated by appropriate notification (not shown). .

In the embodiment shown in FIGS. 1 to 3,
When necessary, the smoke emission control device 33 is activated by the smoke emission emergency power supply 34. Therefore, even if the normal power supply is cut off when a fire occurs, the intended operation can be normally obtained. Further, in the embodiment of FIGS. 1 to 3, since the exhaust device 30 is provided above the position of the driving electric device 24, even if the smoke collector 25 and the duct 27 are omitted, The operation according to the embodiment of FIGS. 1 to 3 can be obtained.

Further, in the embodiment shown in FIGS. 1 to 3, the car 2 is stopped at the nearest landing via the operation of the fire detector 31, and the door is opened. At the same time, it is also possible to perform an emergency operation so as to notify the occurrence of a fire and prompt evacuation, and then suspend the operation of the elevator.

In the embodiment shown in FIGS. 1 to 3,
An exhaust window door 29 that opens and closes the exhaust window 28 is provided, and is opened only by a smoke control device 33 in the event of a fire. For this reason, wind and rain do not enter the hoistway 1 from outside during normal times, and unnecessary wear of the equipment in the hoistway 1 due to moisture or the like can be prevented.

In the embodiment shown in FIGS. 1 to 3,
Even if the drive electric device 24 is arranged on at least one of the drive electric device (not shown) associated with the hoisting machine 4, the control panel 19 and the elevator, the embodiment shown in FIGS. The operation almost the same as the operation in the above can be obtained.

In the embodiment shown in FIGS. 1 to 3,
The hoisting machine 4 provided with the driving electric device 24 and the control panel 1
A smoke collector 25 is provided so as to cover the upper and side surfaces of the driving means 9 and the like. However, even if the smoke collector 25 is configured to cover, for example, the upper surface and the side surface of either the hoisting machine 4 or the control panel 19, the operation in the embodiment of FIGS. Almost the same operation can be obtained.

Embodiment 2 FIG. 4 is a view showing an example of another embodiment of the present invention, and is a longitudinal sectional view conceptually showing an elevator apparatus. In addition, other than FIG.
An elevator device is configured as in FIG. In the figure, the same reference numerals as those in FIGS.

Numeral 35 is a smoke collector in the form of a range hood.
An insertion hole 26 for the main cable 12 is provided below the hoistway 1 and formed by a plate disposed over the upper surface of the driving electric device 24, and the hoistway 1 on the exhaust device 30 side is provided.
An opening 36 is provided by rising toward the wall surface.

In the elevator apparatus configured as described above, the hoisting machine 4 is energized by the output of the control panel 19, and the drive sheave 6 rotates to drive the car 2 and the counterweight 3 via the main rope 12. Move up and down in opposite directions. When a fire occurs in the drive electric device 24, the fire detector 3
1 works. As a result, the smoke control device 33 operates to urge the exhaust device 30 and the exhaust window door driving device 32.

When the exhaust device 30 and the exhaust window door drive unit 32 open the exhaust window door 29, the smoke in the smoke collector 35 rises and the smoke from the exhaust window door 29 rises as shown by the arrow B. The air is exhausted outside the hoistway 1. Therefore, detailed description is omitted, but in the embodiment of FIG.
The same operation as the embodiment of FIG. 3 can be obtained.

In the embodiment shown in FIG. 4, the exhaust window 28 is arranged on the wall of the hoistway 1 away from the entrance of the car 2 on the horizontal projection plane, and is provided at the upper end of the hoistway 1. For this reason, smoke that rises in the event of a fire of the driving electric device 24 does not spread in the hall 16 and the car 2 directions. For this reason, the passengers in the car 2 and the waiting passengers at the landing 16 can be easily evacuated by appropriate notification (not shown).

In the embodiment shown in FIG. 4, a smoke collector 35 is provided so as to cover the upper surface of the driving means including the hoisting machine 4 provided with the driving electric device 24 and the control panel 19. However, even when the smoke collector 35 is provided so as to cover, for example, the upper surface of either the hoisting machine 4 or the control panel 19, substantially the same operation as that in the embodiment of FIG. Can be obtained.

In the embodiment shown in FIG. 4, the occurrence of a fire from the driving electric device 24 has been described. But,
For example, even if there is smoke or the like from an electric device (not shown) arranged near the bottom surface 5 of the hoistway 1, FIG.
Functions substantially similar to the functions in the embodiment can be obtained.

[0038]

As described above, the present invention relates to a hoistway of an elevator for raising and lowering a car, a driving electric device provided in a device constituting driving means of the elevator and installed in the hoistway, An exhaust device provided on the road above the installation position of the driving electric device and communicating with the outside of the hoistway, a fire detector installed corresponding to the driving electric device, and a fire detector And a smoke control device that operates the exhaust device by operation.

Thus, the operation of the fire detector in the event of a fire occurring in the driving electric device activates the smoke exhaust control device to operate the exhaust device, and the smoke of the fire is exhausted out of the hoistway. Therefore, the smoke of the fire does not spread in the direction of the landing and the car, and there is an effect of facilitating the evacuation of the passengers in the car and the waiters at the landing.

Further, as described above, the present invention is such that the exhaust device is arranged on the wall of the hoistway that is away from the entrance of the car on the horizontal projection plane of the hoistway.

Thus, the operation of the fire detector in the event of a fire in the driving electric equipment activates the smoke exhaust control device to operate the exhaust device, and the smoke of the fire is exhausted out of the hoistway. And since the exhaust system is located on the hoistway wall far from the entrance and exit of the car on the horizontal projection plane of the hoistway, the smoke of the fire does not spread in the direction of the hall and the car, and passengers in the car and waiting for the hall This has the effect of facilitating evacuation of customers.

Further, as described above, the present invention has a smoke collector provided at least over the driving electric device, and a lower end communicating with the smoke collector and an upper end connected to the smoke exhaust control device. And a duct.

Thus, when a fire occurs in the driving electric equipment, the operation of the fire detector activates the smoke emission control device to operate the exhaust device, and the smoke of the fire rises and falls through the smoke collector and the duct. It is exhausted out of the road. Therefore, the smoke of the fire does not spread in the direction of the landing and the car, and there is an effect of facilitating the evacuation of the passengers in the car and the waiters at the landing.

Further, as described above, the present invention provides an exhaust window door for opening and closing an exhaust window provided with an exhaust device, and an exhaust window door driving device which is energized by a smoke exhaust control device to open the exhaust window door. Are provided.

Thus, the operation of the fire detector in the event of a fire in the driving electric equipment activates the smoke emission control device to operate the exhaust device, and the smoke of the fire is exhausted out of the hoistway. Therefore, the smoke of the fire does not spread in the direction of the landing and the car, and there is an effect of facilitating the evacuation of the passengers in the car and the waiters at the landing. In addition, an exhaust window door that opens and closes the exhaust window is provided and is opened only in the event of a fire. For this reason, wind and rain do not enter from the outside in normal times, and there is an effect of preventing unnecessary wear of equipment in the hoistway beforehand.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention, and is a longitudinal sectional view conceptually showing an elevator apparatus.

FIG. 2 is a cross-sectional plan view of a main part of FIG.

FIG. 3 is a main part control circuit diagram of the elevator apparatus of FIG. 1;

FIG. 4 is a view showing the second embodiment of the present invention, and is a longitudinal sectional view conceptually showing an elevator apparatus.

FIG. 5 is a longitudinal sectional view conceptually showing a conventional elevator apparatus.

FIG. 6 is a longitudinal sectional view conceptually showing another conventional elevator apparatus.

[Explanation of symbols]

1 hoistway, 2 cars, 4 hoisting machines, 19 control panel, 2
4 drive electrical equipment, 25 smoke collectors, 27 ducts,
28 exhaust window, 29 exhaust window door, 30 exhaust device, 31
Fire detector, 32 Exhaust window door drive, 33 Smoke emission control device, 35 Smoke collector.

Claims (4)

[Claims] 1. A hoistway of an elevator for raising and lowering a car, a driving electric device provided in a device constituting driving means of the elevator and installed in the hoistway, and a driving electric device provided in the hoistway and An exhaust device disposed above the installation position of the driving electric device and communicating with the outside of the hoistway, a fire detector installed corresponding to the driving electric device, and an operation of the fire detector An elevator device comprising a smoke control device for operating an exhaust device. 2. The elevator apparatus according to claim 1, wherein the exhaust device is disposed on a wall of the hoistway that is separated from a doorway of the car on a horizontal projection plane of the hoistway. 3. A smoke collector provided so as to cover at least an upper part of the driving electric device, and a duct having a lower end communicating with the smoke collector and an upper end connected to a smoke control device. The elevator apparatus according to claim 1, wherein 4. An exhaust window door for opening and closing an exhaust window provided with an exhaust device, and an exhaust window door driving device urged by a smoke exhaust control device to open the exhaust window door. The elevator apparatus according to any one of claims 1 to 3, wherein