KR100647829B1 - Elevator apparatus - Google Patents

Abstract

The present invention provides a fire detector in a hoistway within a range from the boarding cage when the boarding cage is at the top of the hoistway, in order to obtain an elevator device in which the design of the building is free and the maintenance of the fire detector is simple.

Hoist, boarding cage, fire detector, counterweight, hoist rope

Description

Elevator device {ELEVATOR APPARATUS}             

1 is a schematic perspective view of an essential part showing an embodiment of an elevator apparatus according to the present invention;

FIG. 2 is a front view illustrating a state in which the boarding cage is stopped at the highest floor position in FIG.

3 is a schematic perspective view of an essential part showing another embodiment of an elevator apparatus according to the present invention;

4 is a schematic perspective view of an essential part showing still another embodiment of an elevator apparatus according to the present invention;

5 is a schematic side view of an essential part showing another embodiment of an elevator apparatus according to the present invention;

6 is a schematic side view of an essential part showing another embodiment of an elevator apparatus according to the present invention;

7 is a power supply diagram of the entire elevator apparatus;

8 is an overall configuration diagram of a control circuit diagram;

Fig. 9 is a schematic perspective view of a main portion showing still another embodiment of an elevator apparatus according to the present invention;

10 is a front view of a state in which the boarding cage is stopped at the top floor position;

FIG. 11 is a plan view of FIG. 10;

12 is a front view of an electric board;

13 is a schematic perspective view of an essential part showing still another embodiment of an elevator apparatus according to the present invention;

14 is a schematic perspective view of an essential part showing yet another embodiment of an elevator apparatus according to the present invention;

15 is a front view showing a separate state where the boarding cage is stopped at the upper position of the hoistway;

16 is a safety circuit for maintenance and inspection according to the present invention;

17 is a flowchart of the fire control operation of the elevator apparatus according to the present invention,

18 is a flowchart of another fire control operation of the elevator apparatus according to the present invention;

19 is a configuration diagram of another inverter device of the elevator device according to the present invention.

* Explanation of symbols for main parts of drawings *

2: boarding cage 3: counterweight

4a, 4b: guide rail 5a, 5b: weight guide rail

6: reel rope 7a, 7b: forward pulley

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus, and more particularly, to an elevator apparatus in which a device for driving a boarding cage is provided in a hoistway.

Recently, as a solution to increase the degree of freedom of building design and to use the building space efficiently and economically, a traction drive elevator device that installs a drive mechanism including a hoisting machine motor in a hoistway has been widely used. Japanese Patent Laid-Open No. 8-208152).

This type of elevator device needs to install a fire detector in the hoistway from the viewpoint of disaster prevention, attaches the fire detector near the hoist ceiling wall, and installs an inspection port through the hoistway wall facing the boarding point side to prevent the fire detector in the building. I have a maintenance check. In order to form a fire compartment, this inspection opening is normally closed by a hoistway and a fire protection iron plate cover, and a ceiling covering for inspection passing through the inspection opening is provided on the ceiling of the boarding station side.

However, when the inspection door and the fire prevention iron plate cover is installed on the hoistway wall and the inspection ceiling cover is installed on the ceiling of the boarding area, there is a problem that the freedom of design of the building is impaired.

In addition, for maintenance inspection of the fire detector, the inspection ceiling cover must be opened, and after that, the fire protection iron plate cover has to be removed, thereby making maintenance inspection work cumbersome.

An object of the present invention is to provide an elevator apparatus which is free in design of a building and simple in maintenance inspection work of a fire detector.

Another object of the present invention is to provide an elevator apparatus capable of simultaneously performing a maintenance inspection operation of an apparatus for driving a boarding cage and a fire detector.

In order to achieve the above object, the present invention is to provide a fire detector in the hoistway of the range which extends from the hoist cage when the boarding cage is at the highest level of the hoistway.

Moreover, the apparatus for driving a boarding cage is arrange | positioned near a fire detector.

According to the above configuration, it is possible to carry out a maintenance inspection of a device for controlling the operation of a fire detector and a boarding cage by boarding a boarding cage, and furthermore, a check opening, a fireproof steel plate cover and a ceiling cover for inspection of these There is no need to install in the building, and as a result, the design of the building can be freely performed without depending on the inspection or inspection ceiling cover. In addition, since it is not necessary to open or close the two covers of the fire protection iron plate cover and the inspection ceiling cover at the time of maintenance inspection, maintenance inspection becomes simple.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. The boarding cage 2 and the counterweight 3, which move up and down in the hoistway 1, are guided by a pair of cage guide rails 4a and 4b and a pair of weight guide rails 5a and 5b, respectively, which are mounted upright. Ascend and descend. These boarding cages 2 and the counterweights 3 are suspended by a take-up rope 6.

The boarding cage 2 is supported by winding the said winding rope 6 to the forward pulleys 7a and 7b which provided the rope groove supported in the width direction both sides of the bottom part. Moreover, the counterweight 3 is supported by winding the said winding rope 6 to the turning pulley 8 provided with the rope groove supported on the upper part.

The hoisting rope 6 wound in this way is wound on the traction sheave 10 of the drive mechanism 9 arranged above the hoistway 1 to be traction driven.

One end of the take-up rope 6 is fixed to the fixing means 11 located above the passage of the counterweight 3 in the hoistway 1. The take-up rope 6 from the fixing means 11 descends to the forward pulley 8 of the counterweight 3, and when it winds and rotates the forward pulley 8, it rises to the traction sheave 10. The reeling rope 6 wound around the traction sheave 10 is lowered again toward the bottom of the boarding cage 2 and, via the forward pulleys 7a and 7b of the boarding cage 2, the cage guide rail ( It rises to the fixing means 12 of the upper part of 4a). The other end of the take-up rope 6 is fixed here.

On the upper end of the weight guide rails 5a and 5b, the machine base frame 13 is fixedly mounted. This machine base frame 13 is comprised from the machine base 13a, the pair of pillars 13b and 13c, and the auxiliary member 13d which connects between the pair of pillars 13b and 13c from the upper side. . The mechanical base 13a is fixed by attaching a fixing means 11 at one end of the drive mechanism 9 and the take-up rope 6 and bears the respective vertical loads. In addition, the upper ends of the pillars 13b and 13c are fixed to the building girders (not shown) at the uppermost position of the hoistway 1. An upper portion of the drive mechanism 9 is supported by a support metal fitting 14 to the auxiliary member 13d connecting the left and right vertical pillars 13b and 13c to the horizontal direction of the drive mechanism 9. Supporting the load.

On the other hand, next to the doors 15a and 15b of the boarding point on the uppermost floor of the building, an electric cabinet 17 containing a control device 16 which is a part of the device for driving the elevator device is arranged. The electric board 17 has a door 17a, and the inside is inspectable by opening this door 17a.

In addition, at the top of the hoistway 1, for example, a smoke detector 18, which is one of fire detectors, is fixed to the auxiliary member 13d via the mounting member 18a.

In the ceiling of the boarding cage 2, when the boarding cage 2 is located at the top of the hoistway 1, an inspection opening 2a is provided at a position facing the smoke detector 18. This inspection opening 2a is normally closed with a cover and filled with a lock so that a person does not go out.

At the time of inspection of a disaster prevention system, the operation | movement of all the fire detectors of a building is performed. At this time, when the boarding cage 2 is stopped at the top of the hoistway and the inspection opening 2a is opened, the smoke detector 18 can be visually seen, and the body is held in the boarding cage or at the inspection opening 2a to operate the operation test tool. By checking the smoke detector 18, the operation can be confirmed. In this way, since the operation test of the smoke detector 18 can be performed from the boarding cage 2, it is not necessary to install an inspection door or a fire door on the building side, and the tester can carry out work in the range from the boarding cage 2. Since it can be done, safety can be ensured.

On the other hand, the signal of the smoke detector 18 is connected to the disaster prevention center (not shown) via the signal line 18b, the relay terminal block 18c, and the signal line 18d.

Since the power source for driving the elevator apparatus is drawn into the electric cabinet 17, the signal line 18d between the smoke detector 18 and the disaster prevention center is placed in or near the electric cabinet 17 at the time of drawing in the power supply. By providing the smoke detector 18, the installation and wiring work of the smoke detector 18 can be completed only by installing the smoke detector 18 and connecting the signal line 18b to the relay terminal block 18c.

In the present embodiment, one end of the main rope 6 and the smoke detector 18 are supported by the machine base frame 13, but the two ends of the take-up rope 6 are respectively constructed of building girders (tops of the hoistway 1). The smoke detector 18 may be attached directly to the cage guide rails 4a and 4b by directly fixing to fixing means such as not shown).

In addition, the present embodiment is a configuration in which the machine base frame 13 is fixed to the top of the weight guide rail 5a and the drive mechanism 9 is supported on the machine base frame 13, but the machine base frame 13 It is possible to support the driving mechanism 9 at the top of the hoistway without using a.

That is, as shown in FIG. 3, one end of the winding rope 6 is fixed to the top of the weight guide rail 5a via the mounting plate 19. The take-up rope 6 from the mounting plate 19 is lowered to the turning pulley 8 provided on the counter weight 3, and the turning pulley 8 is rolled up to rotate the traction of the drive mechanism 9. It rises to the sheave 10 side, it winds around the rope groove of the traction sheave 10, and rotates. Next, the take-up rope 6 is lowered to the bottom side of the boarding cage 2, and thus, via the pair of forward pulleys 7a and 7b, the top fixing means of the cage guide rail 4a (not shown) To rise). The other end of the take-up rope 6 is fixed here. On the other hand, the drive mechanism 9 is fixed to the top of the cage guide rail 4b and the smoke detector 18 is fixed to the same cage guide rail 4b via the mounting member 18a, and the smoke detector 18 Is located above the drive mechanism 9.

Configurations other than the above-described configuration are the same as in the above embodiment, and reference numerals without descriptions denote the same parts as those in FIGS. 1 and 2, and thus repeated descriptions are omitted.

4 shows another embodiment in which the drive mechanism 9 and the support and guide rails of the smoke detector 18 are different from the above embodiment. 1 and 2 denote the same parts, so that repeated descriptions are omitted.

The boarding cage 2 and the counterweight 3 are guided by a pair of common guide members 19a and 19b which are set up and installed in the hoistway, and these guide members 19a and 19b have a cross-shaped U shape. It is installed so as to face the opening. And the other leg of the cross-section U-shape of each guide member 19a, 19b is used as the guide rail 20a, 20b which guides the boarding cage 2, and the other leg is the counterweight 3 It is called the weight guide rail 21a, 21b which guides this.

The boarding cage 2 and the counterweight 3 are suspended by a take-up rope 6. One end of the take-up rope 6 is connected to the lower part of the boarding cage 2, and the other end is connected to the counter weight 3, and is wound around the traction sheave 10 in a hung fashion.

The drive mechanism 9 with the traction sheave 10 is fixed to the machine base 13a, and the machine base 13a is fixed to the upper portion of the U-shaped guide members 19a and 19b.

The smoke detector 18 is provided in the upper position of the guide member 19a via the mounting member 18a. In the ceiling of the boarding cage 2, the inspection opening 2a is set in the same position as each said Example, and the maintenance inspection work is the same as that of the said Example.

Each of the above embodiments is a so-called traction drive type elevator that suspends the boarding cage 2 and the counterweight 3 by a reeling rope 6, and drives the reeling rope 6 by the traction sheave 10. Although it is an apparatus, it is applicable also to the hydraulic elevator apparatus shown in FIG.

That is, the boarding cage 2 is guided along the pair of cage guide rails 4a and 4b installed to insert the boarding cage, and is driven up and down by the hydraulic jack 22. The hydraulic jack 22 is comprised of the cylinder 22a and the plunger 22b which protrudes by supplying pressure oil to the inside, and stands at the pit bottom of the hoistway 1, It is installed. The upper end of the plunger 22b is connected to a cage frame 2b supporting the boarding cage 2.

The smoke detector 18 is installed in the upper position of the cage guide rails 4a and 4b via the mounting member 18a. In the ceiling of the boarding cage 2, the inspection opening 2a demonstrated in each Example is provided.

And the maintenance inspection work of the smoke detector 18 can also be performed like each Example.

However, in each of the above embodiments, the inspection door 2a is installed on the ceiling of the boarding cage 2, and when the boarding cage 2 is stopped on the uppermost floor, it is delayed by using the installation device in the hoistway facing the inspection door 2a. The detector 18 is provided to perform maintenance inspection of the smoke detector 18 at the ceiling inspection opening 2a.

However, as in the embodiment shown in Fig. 6, the inspection device 2c is formed in the side plate forming the side wall of the boarding cage 2, and the installation device in the hoistway, for example, the weight, can be inspected by the inspection door 2c. The smoke detector 18 may be attached to the guide rails 5a (5b) via the mounting member 18a.

In each of the above embodiments, in the structure in which the inspection opening 2a is provided in the ceiling of the boarding cage 2, and this is opened and maintenance inspection of the smoke detector 18 is carried out, the inspection opening 2a is provided in the ceiling of the boarding cage. You may combine with rescue port. However, it is not possible to open the rescue exit in the boarding cage, but it is possible to open it without a key from the outside, and the check opening 2a is opened using a key in the boarding cage. For this reason, when using both the inspection opening 2a and the rescue exit, it is necessary to set it as the structure which can be opened using a key in the boarding cage and can be opened without using a key from the outside.

Further, in each of the above embodiments, the configuration in which the smoke detector 18 is installed using the installation apparatus in the hoistway, such as the guide rails 4a, 4b, 5a, 5b or the mechanical foundation frame 13, has been described. The smoke detector 18 may be installed by using a device installed in the hoistway. In addition, although the smoke detector 18 which detects a smoke was demonstrated as an example as a fire detector, you may use the heat detector which detects ignition or heat_generation | fever.

However, each of the above embodiments includes a relay terminal block of a fire detector, and an electric panel provided with a device for controlling the driving of the boarding cage 2 and a device for issuing a driving command in accordance with a hall call or a cage call. Although it is accommodated in (17), when there are many devices etc. which are accommodated, the depth dimension of the electric board 17 may become large, and it may protrude from a boarding barrier and may be unfavorable in design.

In such a case, an inverter device and a transbox for rotationally controlling the motor of the winding machine among the devices for controlling the driving of the boarding cage are installed in the hoistway, and the power supply breaker for the elevator device is installed in the electric cabinet 17 outside the hoistway. By storing only the device thinner than the breaker, it is possible to perform maintenance checks on the devices as in the fire detector maintenance, and prevent the electric board on the boarding side from protruding from the boarding barrier.

Hereinafter, another embodiment in which an inverter device for controlling rotation of a motor of a winding machine and a transbox in a hoistway like a fire detector among devices for driving an elevator device will be described with reference to FIGS. 7 to 12.

The installation of the drive mechanism 9 with the boarding cage 2, the counterweight 3 and the traction sheave 10 and the routing of the reel rope 6 wound around them are described in the above embodiments. Since it is a kind, repeated description is abbreviate | omitted.

As shown in FIG. 7 and FIG. 8, the driver device 9 is rotationally controlled by the output of the inverter device 30. The power source power of the inverter device 30 is supplied from the building power source 100 through the breaker 31a. The transformer 32a in the transbox 32 is a power transformer for the vector control circuit 33, the speed command circuit 34a and the driving circuit 34b, and the transformer 32b is a power transformer for the hall side device 35. The transformer 32c is a power supply transformer for the cage upper box 2g. The breaker 31b for protection is provided in the primary side of the transformer 32a, 32b, 32c in the transbox 32. As shown in FIG.

Fuses 36a and 36b are provided on the secondary side of the transformer 32a for short circuit protection. A fuse 36c is provided on the secondary side of the transformer 32b, and a fuse 36d is provided on the secondary side of the transformer 32c, respectively. Illumination power of the boarding cage 2 is supplied from the building lighting power supply 101 via the breaker 31c via the tail cord 2e. In the cage upper box 2g, a circuit for controlling cage doors 2c and 2d (FIG. 9), a circuit for turning on illumination, a circuit for controlling a cage call input and response lamp, and the like are housed. The circuit configuration of the cage upper box 2g is omitted since it is not directly related to the present invention. The cage upper box 2g is supplied with power from the transformer 32c in the transbox 32 via a tail cord 2e.

In FIG. 8, the driver apparatus 9 is equipped with the brake 9a and the speed detector 9b which detects a rotation speed. The driver device 9 is rotationally controlled by the output of the inverter device 30.

The inverter device 30 includes a rectifier 30a for converting alternating current of a building power source into a direct current, a regenerative power absorption circuit 30b for absorbing regenerative power from a resistor, and a capacitor 30c for smoothing the output of the rectifier 30a. And an inverter 30d for converting a direct current to an alternating current, a vector control circuit 33 for giving a pulse width signal pw to the inverter 30d, and a current detector 30e for detecting an alternating current. The regenerative power absorption circuit 30b is composed of a resistor 30g and a switching element 30f. The resistor 30g is provided outside the inverter device 30 in order to avoid replacement and to downsize the inverter device.

The output of the inverter 30d uses the signal sps of the speed detector 9b and the current signal is of the current detector 30e as a feedback signal, and the pulse width of the vector control circuit 33 in accordance with the speed signal spc of the speed command circuit 34a. By the signal pw, a pulsed AC voltage is applied to the driver device 9 to perform rotation control.

The brake 9a is opened or closed by turning on / off the contactor 31k. The brake circuit power supply (driving circuit power supply 34e) is shared with the power supply for the speed command circuit 34a and the driving circuit 34b shown in FIG. The input power of the inverter device 30 is supplied from the building power supply 100 via the breaker 31a and the contactor 31j which turns on / off the power supply.

The input signal of the driving circuit 34b includes a call input signal 34b1, a smoke detector input signal 34b2, a cage position signal (not shown), a safety circuit signal, and the like. In addition, the driving circuit 34b outputs the hall button lighting signal 34b3, the cage door opening and closing signal 34b4, the function of opening and closing the contactors 31j and 31k, and the function of tripping the breakers 31a and 31c. Have In addition, the driving circuit 34b has a function of broadcasting a guide for prompting evacuation in an emergency.

The speed command circuit 34a generates the speed signal spc from the starting floor to the target floor by the signal sp of the driving circuit 34b. In an emergency, the speed command circuit 34a receives the nearest floor stop command from the driving circuit 32b to emergency stop the boarding cage 2.

9 and 10 show arrangements of devices of the apparatus for controlling the driving of the boarding cage of the above configuration. The boarding cage 2 and the counterweight 3 run the hoistway along the cage guide rails 4a and 4b and the weight guide rails 5a and 5b, respectively. The cage guide and the counterweight guide which guide-support the boarding cage 2 and the counterweight 3 to each guide rail are not shown. In addition, although each guide rail is supported by the wall of a hoistway or building girders, this also is not shown.

In addition, since the same code | symbol as the Example shown in FIG. 1 represents the same thing, detailed description is abbreviate | omitted.

The driver device 9 is fixed to the machine base frame 13, but the inverter device 30 is fixed to the vertical columns 13b and 13c on the upper part of the driver device 9. Further, on the upper portion of the inverter device 30, a smoke detector 18 for notifying the building side is provided on the installation member 18a at the same time as the smoke detector 24 for driving control of the elevator device, and the vertical column 13b, It is fixed to the auxiliary member 13e connected to 13c). These smoke detectors 18 and 24 may be used together for notification to the building and operation control. The transbox 32 is fixed to the upper side of the cage guide rail 4b by the fixing member 32d. In addition, a resistor 30g of the regenerative power absorption circuit 30b is disposed thereon. 23a and 23b represent upper and lower pulleys of the governor for detecting overspeed, and 23c represent the rope for the governor. The governor pulley 23a at the upper part of the hoistway is fixed to the guide rail 4b by the fixing member 23d.

The ceiling of the boarding cage 2 is provided with an inspection port 2a for inspecting the smoke detectors 18 and 24 and inspecting the inverter device 30. When the worker rides on the cage ceiling from the inspection opening 2a, the maintenance of the transbox 32 and the resistor 30g can be performed.

On the other hand, the electric board 17 which accommodated a part of the control device for boarding cage drive is arrange | positioned beside the boarding gate door 15a, 15b of the uppermost floor of a building. The front face of the electric board 17 has a door 17a, and as shown in Fig. 12, the interior inspection and the breakers 31a, 31b and 31c can be turned on and off as shown in FIG.

As shown in FIG. 10, when the boarding cage 2 has stopped at the position of the uppermost floor, the position of the check opening 2a extends its hand from the ceiling of the boarding cage 2 to check and replace the parts of the inverter device 30. It is suitable that the height L is small and the distance L with the inverter device 30 side is small. In order to be able to easily exchange the unit when the inverter device 30 is broken, when the boarding cage 2 is stopped on the uppermost floor, the lower end of the inverter device 30 is lower than the position of the ceiling of the boarding cage 2. High position is suitable.

In addition, the positions of the smoke detectors 18 and 24 are not extended out of the inspection opening 2a, and the tool for checking the operation of the smoke detector (same as the tool for checking the operation of the smoke detector in the building) is held in the cage. It is the same as that of the said Example that the position which can be tested is suitable. The operator stops the boarding cage 2 on the uppermost floor, presses a stop switch (not shown) in the operating panel in the cage, opens the inspection opening 2a with a key, and performs an operation test in the cage. The inspection opening 2a is provided with a safety switch (not shown) which stops the elevator apparatus when the lid is opened.

By the way, although the mounting bracket 18a of the smoke detectors 18 and 24 was fixed to a part of the machine base frame 13, you may fix it to the ceiling of the hoistway 1. As shown in FIG.

Although the above description is an example in which the inspection openings 2a for the smoke detectors 18 and 24 are installed in the boarding cage 2, even if the inspection openings 2a are not provided, the worker can safely perform maintenance inspection work. That is, a worker rides on the cage ceiling, presses the low speed operation button of the operation operation box installed there, and performs the low speed operation, and at the position opposite to the smoke detectors 18 and 24, the hand lifts it from the low speed operation button. To stop the boarding cage 2 and carry out maintenance inspection work.

Next, the advantages of installing the inverter device 30 and the transbox 32 on the hoistway will be described. In FIG. 11, the boarding gates 15a and 15b are located in the hatch of the hoistway 1 facing the cage doors 2c and 2d of the boarding cage 2. The electric board 17 is provided beside the boarding gate 15a. The electric board 17 has a small size and a thin shape of about 400 to 500 mm in width and 100 to 150 mm in thickness in the length of the boarding doors 15a and 15b.

The boarding cage 2 is provided with a cage position detector 2f and a tail cord 2e. The weight guide rails 5a and 5b are arrange | positioned at the left side of the forward pulley 7b. The traction sheave 10 is arranged at a position very close to the forward pulley 7b. 23a is a governor pulley, and must be arranged near the cage guide rail 4b in order to activate the emergency prevention (not shown) of the boarding cage 2. As is apparent from Fig. 11, in order to provide a compact and thin electric board 17 in the uppermost platform, it is necessary to partially install a part of the control device.

According to the present embodiment, this is solved by arranging the transbox 32 and the resistor 30g on the top of the inverter device 30 and the governor pulley 23a on the top of the driver device 9.

The electric board 17 is internally shown in FIG.

① Breaker 31a, 31b, 31c for disconnecting power supply at the stage of installation work

② Fuses for circuit protection (36a, 36b, 36c, 36d)

③ Contactor 31j for turning on / off the power supply of the inverter device 30.

③ Contactor 31k for opening or closing the brake 9a as a security device.

④ Speed command circuit 34a

⑤ The operation command circuit 34b, which may be damaged during the installation work, is stored. The thickness of these devices is 100 to 150 mm or less, and power transformers 32a, 32b, and 32c thicker than breakers and contactors are provided in the hoistway.

Depending on the circumstances of the device arrangement, the transformer may be stored in the electric cabinet 17 as long as it is a transformer having a thickness equivalent to that of the breaker and the contactor.

In this way, since almost all of the driver device 9 and the control circuit are provided in the hoistway 1, the influence of when the device is ignited or smoked for any reason is influenced by the driver device in the machine room provided separately at the top of the hoistway. It is obvious that it is larger than the conventional elevator apparatus provided with a control apparatus.

As described above, the smoke detector 18 shown in FIG. 9 is a disaster prevention device on the building side, and the smoke detector 24 is a smoke detector for an elevator device. As shown in FIG. 8, the smoke detector 24 for an elevator device is shown. The input signal 34b2 is input to the driving circuit 34b.

In FIG. 9, an example in which the inverter device 30 is disposed above the driver device 9 is shown. However, as shown in FIG. 13, the resistor 30g is disposed on the driver device 9, and the cage is disposed in the cage. The inverter device 30 may be fixed to the guide rail 4b with a fixed metal fitting 30m, and the transbox 32 may be fixed with the fixed metal fitting 32d. 14, the transbox 32 is arrange | positioned on the driver apparatus 9, the resistor 30g is fixed to the cage guide rail 4b by the metal fitting 30n, and the inverter apparatus 30 is shown. ) May be fixed with metal fittings (30m).

On the other hand, in the elevator apparatus, as shown in FIG. 15, the ultimate limit switch 40 to forcibly stop and the up limit which prevents operation to an upward direction as prevention of the excessive rise of the boarding cage 2 are shown. An up limit swithch 41 is provided on a bracket 42 fixed in the tower. A cam 43 for operating the limit switches 40, 41 is installed in the boarding cage 2. When the boarding cage 2 passes the uppermost floor, the up-limit switch 41 operates, and cut | disconnects the operation command to an upward direction. In addition, in the case of excessive upward movement, the final limit switch 40 is operated to completely stop the boarding cage 2 and restart the safety system. The safety limit switch 44 which operates when the distance LU between the ceiling of the boarding cage 2 and the hoistway ceiling reaches a predetermined interval, for example, 1.5 m, is provided below the up limit switch 41. Next, the sequence circuit using this safety limit switch 44 is demonstrated in FIG. In Fig. 16, (+) (-) represents the power supply of the circuit. 45 denotes a relay to permit driving in the upward direction. 46 is a closed switch in normal operation.

The switch 46 is opened when the worker moves at low speed in the ceiling of the boarding cage 2. If the limit switch 44 is forcibly opened when the worker forgets to release the low speed rising operation button during the low speed rising operation, the relay 45 is turned off, and the boarding cage 2 stops the upward direction driving. do. The worker can securely perform the operation check test of the smoke detectors 18 and 24 and the inspection of the inverter device 30 because the safety distance LU of the ceiling of the boarding cage 2 and the hoistway ceiling is secured.

Next, the fire control operation of the elevator apparatus using the smoke detector 24 will be described using the flowchart of FIG. The following function is provided in the driving circuit 34b.

(1) When the boarding cage is traveling (P1), the smoke detector is activated (P7), and the deceleration start (P8) is performed on the target floor, landing on the target floor (P9), and the door is opened. After the passengers are alerted (P4), the passengers are evacuated, the doors are closed, and the breakers 31a and 31c are tripped (P5) to the passenger equipment. The power supply is completely shut off to prevent the spread of damage.

(2) When the boarding cage is traveling (P1) and the smoke detector is activated (P7) and the deceleration start (P8) is not performed on the target floor, a command to stop on the nearest floor is generated (P11), After landing on the nearest floor (P12), open the door, broadcast (P4) the alarm to the passenger, `` Get off very quickly, '' close the door, force the trip breaker (31a and 31c) (P5), Shut off the power supply to the equipment of the elevator unit.

(3) When the boarding cage is traveling (P1) and the smoke detector is not operating (P7), the vehicle travels to the target floor, and after landing, travel starts to the next target floor (P10).

(4) When the boarding cage is not traveling (P1) but the door is closed and stopped (P2), even when the smoke detector is activated (P6), the door may be opened because there may be passengers in the cage. A warning of "Please get off very quickly" is broadcasted (P4), the door is closed, the breakers 31a and 31c are tripped forcibly (P5), and the power supply to the equipment of the elevator device is cut off.

(5) When the boarding cage is not running (P1) but the door is closed and stopped (P2), when the smoke detector is not operating (P6), normal operation is performed.

(6) If the smoke detector is activated (P3) while the boarding cage is not running (P1), the door is not closed and is not stopped (P2), open the door again and ask the passenger to `` get off very quickly. Broadcast the alarm ”(P4), close the door, forcibly trip the breakers 31a and 31c (P5), and cut off the power supply to the equipment of the elevator apparatus.

(7) If the smoke detector is not operating while the boarding cage is not running (P1), the door is not closed and is not stopped (P2), normal operation is performed.

Although the smoke detector input signal 34b2 (FIG. 2) used for the fire control operation of an elevator apparatus is a signal of the smoke detector 24 for elevator apparatuses, you may use the signal of the smoke detector 18 for buildings.

In addition, in the flowchart of FIG. 17, when the smoke detector is operating P7 during the boarding cage running (P7), the instruction which stops to the nearest floor is generated (P11), and it is implanted on the nearest floor (P12). However, as shown in the flowchart of Fig. 18, after the target is placed on the target floor (P9), the door is opened, and the passenger is alerted, "Please get off very quickly" (P4), and the door is opened after the passenger gets off. It may close and the breaker 31a, 31c may trip P5.

In the flowcharts of Figs. 17 and 18, the door is closed and the breakers 31a and 31c are tripped (P5) to cut off the power supply to the elevator apparatus, but the fire control operation is performed until the door is closed. Thereafter, the signal of the smoke detector may cut off the power supply to the elevator apparatus at the judgment of the manager on the building side.

Although the inverter device 30 in each of the above embodiments has been described as a control method in which power is consumed by a resistor, as shown in FIG. 19, the output voltage is controlled by the pulse width signal pwv of the output voltage control circuit 30h, thereby providing power. The inverter device 30 may be provided with a circuit 30j for regenerating. In this case, there is no resistance 310g in FIGS. 8, 9, 13, and 14.

As will be apparent to those skilled in the art, the inverter device 30 of the embodiment of the present invention does not include the speed command circuit 34a, but the speed command circuit 34a and the driving circuit 34b are provided in the inverter device 30. It may include some of the functions of.

The fire control operation of the present invention is for the safety of the user first, and the combustion prevention is inserted into the disaster prevention system of the whole building.

Thus, according to this invention, by arrange | positioning an elevator apparatus apparatus suitably, both efficient use of a building space and maintenance of installation workability and water maintainability equivalent to the conventional one can be aimed at.

Claims (12)

An elevator apparatus is provided in the ceiling of a boarding cage, and the fire detector which checks operation | movement in a boarding cage when a boarding cage is at the highest level of a hoistway is installed in the upper part of the hoistway of the position which opposes the said checker. An elevator characterized in that an inspection door is provided on the ceiling of the boarding cage, and a fire detector which is confirmed to be operated in the boarding cage when the boarding cage is at the highest level of the hoistway is installed in the upper part of the hoistway at a position facing the checker. Device. An elevator apparatus, characterized in that an inspection door is provided in a boarding cage against a fire detector installed in an installation apparatus in a hoistway at an upper part of the hoistway. A boarding cage for elevating along a guide rail installed in the hoistway, a hoisting rope suspended from the hoisting cage, a traction sheave that winds the hoisting rope by traction, and a traction sheave installed at the upper part of the hoistway An elevator apparatus comprising a drive mechanism, wherein an elevator detector is provided above the drive mechanism. A boarding cage for elevating along a guide rail installed in the hoistway, a hoisting rope suspended from the hoisting cage, a traction sheave that winds the hoisting rope by traction, and a traction sheave installed at the upper part of the hoistway An elevator apparatus provided with a drive mechanism, wherein a fire detector is provided above the drive mechanism, and an inspection device is provided at a position facing the fire detector of the boarding cage. An elevator fire control driving method, wherein the operation of the fire detector according to any one of claims 1 to 5 stops at least the boarding cage while running. An elevator fire control driving method, wherein a warning is required to evacuate a passenger by operating the fire detector according to any one of claims 1 to 5. An elevator fire control operation method comprising tripping a breaker for interrupting power supply to an elevator device after the boarding cage stops by the operation of the fire detector according to any one of claims 1 to 5. A fire detector is installed at the top of the hoistway, a drive mechanism is installed near the fire detector, and an inverter device is arranged at an upper position of the drive mechanism, and the lower end of the inverter device when the boarding cage is located on the top floor. An elevator apparatus, wherein the boarding cage is arranged so as to be located above the fabric information. The method of claim 9, An elevator apparatus, characterized in that a check opening is provided at a position close to the inverter device of the boarding cage. delete When a fire detector is installed at the top of the hoistway, a drive mechanism for driving the boarding cage, an inverter device for controlling the operation of the elevator, a transbox, and a resistor are installed. An elevator device characterized in that the inverter device, the transbox and the resistance are arranged above the ceiling of the boarding cage.

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