JP2000053343A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain and inspect a fire detector with getting on a car, free a design of a building, and facilitate maintenance and inspection of the fire detector, by arranging the fire detector in a hoistway in a range accessible from the car when the car is at the highest position of the hoistway. SOLUTION: A car 2 lifted up and down in a hoistway and a counter weight 3 are guided by a pair of car guide rails 4a, 4b and a pair of weight guide rails 5a, 5b, and is suspended by a hoisting rope 6. A fire detector such as a smoke detector 18 fixes its mounting member to an auxiliary member 13d of a machine base frame 13. On a ceiling of the car 2, an inspection opening 2a is arranged at a position where it faces the detector 18 when the car 2 positions in the highest floor. An electric panel 17 for storing a control device 16 is arranged adjacent to the landing doors 15a, 15b in the highest floor, and a signal wire 18d between the smoke detector 18 provided for this and a disaster protection center is connected to a relay terminal table 18c to facilitate mounting of the smoke detector 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator system, and more particularly to an elevator system having a fire detector.

[0002]

2. Description of the Related Art In a conventional traction drive elevator apparatus, a layout in which a machine room is provided at the uppermost portion of a hoistway and a drive machine device is disposed therein is fundamental. However, this basic form considerably restricted the design of the building with regard to the use and appearance of the entire building. Therefore, in recent years, as a solution to increase the degree of freedom in building design and efficiently and economically use the building space, a traction drive elevator (hereinafter, referred to as a drive mechanism) in which a drive mechanical device including a hoist motor is installed in a hoistway. Built-in type elevators) are becoming widespread (JP-A-8-208152).

[0003] On the other hand, it is increasingly necessary to install a fire detector on the hoistway from the viewpoint of disaster prevention. The fire detector is mounted near the ceiling wall of the hoistway, and an inspection opening is provided on the opposing hoistway wall. The fire detector is to be inspected for maintenance. And this inspection opening is usually closed with a fire protection iron plate lid in order to constitute a fire protection compartment. In addition, the ceiling of the building is provided with an inspection ceiling lid leading to the inspection opening.

[0004]

According to the above-mentioned prior art, it is necessary to provide an inspection opening and a fire protection iron plate lid 20c on the shaft of the hoistway, and to provide a ceiling lid for inspection on the ceiling of the building, which is an advantage of the built-in type elevator. There is a problem that the degree of freedom of the design is hindered.

In addition, for maintenance and inspection of fire detectors,
It was necessary to open the ceiling lid for inspection and then remove the fire protection iron plate lid, which made maintenance and inspection work cumbersome.

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

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for driving a car at the highest position of a hoistway.
The fire detector was installed in the hoistway within reach of the car.

[0008] According to the above configuration, since the maintenance and inspection of the fire detector can be performed on a car, it is not necessary to provide an inspection opening, a fire protection iron plate lid and an inspection ceiling lid on the building side.
The building can be designed freely, ignoring the inspection door and inspection ceiling lid. Further, maintenance and inspection can be simplified since there is no need to open and close the two lids, the fireproof iron plate lid and the inspection ceiling lid, when performing maintenance and inspection of the fire detector.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The car 2 and the canter weight 3, which move up and down the hoistway 1, are guided by a pair of upright car guide rails 4a, 4b and a pair of weight guide rails 5a, 5b. The car 2 and the canter weight 3 are suspended by a hoisting rope 6.

The car 2 is supported by winding the hoisting rope 6 around deflecting pulleys 7a and 7b provided with rope grooves supported on both sides in the width direction of the bottom of the car. Further, the counterweight 3 is supported by winding the hoisting rope 6 around a turning pulley 8 provided with a rope groove supported on the upper part thereof.

The hoisting rope 6 thus wound is
The traction sheave 10 is wound around a traction sheave 10 of a driving mechanical device 9 arranged at the uppermost portion of the hoistway 1 and is driven by traction. Such a hoisting rope 6 is wound as follows. First, one end of the hoisting rope 6 is fixed to fixing means 11 above the passage of the canter weight 3 in the uppermost part of the hoistway 1. The hoisting rope 6 from the fixing means 11 descends to the turning pulley 8 of the canter weight 3,
When the deflecting pulley 8 is wound, it rises again to the traction sheave 10 of the drive mechanism 9. Traction sheave 1
The hoisting rope 6 wound around 0 descends toward the bottom of the car 2 and ascends through the turning pulleys 7a and 7b of the car 2 to the uppermost fixing means 12 of the car guide rail 4a. . Here, the other of the hoisting rope 6 is fixed.

A machine base frame 13 is mounted and fixed on the upper ends of the weight guide rails 5a and 5b. The machine base frame 13 includes a machine base 13a, vertical columns 13b and 13 and an auxiliary member 13d. The machine base 13
A fixing means 11 at one end of the driving mechanical device 9 and the hoisting rope 6 is attached and fixed to a, and the respective vertical loads are maintained. The upper ends of the vertical columns 13b and 13c are fixed to a building beam (not shown) at the uppermost position of the hoistway 1. An auxiliary member 13d for connecting the left and right vertical columns 13b and 13c and a support 14 support the horizontal load of the driving mechanical device 9.

On the other hand, an electric board 17 containing a control device 16 for controlling the operation of the elevator is arranged beside the doors 15a and 15b of the landing on the top floor. Door to electrical board 17
17a, the inside of which can be inspected by opening.

For example, a smoke detector 18, which is one of the fire detectors, is supported by a mounting member 18a, and is mounted by fixing the mounting member 18a to the auxiliary member 13d.

On the ceiling of the car 2, an inspection port 2a is provided at a position opposite to the smoke detector 18 so that the operation of the smoke detector 18 can be confirmed when the car 2 is located on the top floor.
Is provided. The inspection port 2a is normally closed and locked by a cover so that a person cannot go outside.

When checking the disaster prevention system, the operation of all fire detectors in the building is checked. At this time, car 2
Is stopped on the top floor, the inspection port 2a is opened, and the operation test tool is applied to the smoke detector 18 to confirm the operation. Since the operation test of the smoke detector 18 can be performed in the car 2,
Testers' safety can be ensured.

The signal from the smoke detector 18 is connected to a disaster prevention center (not shown) via a signal line 18b, a relay terminal block 18c, and a signal line 18d.

Since electric power for driving the elevator is drawn into the electric board 17, a signal line 18d between the smoke detector 18 and the disaster prevention center is laid during the work of drawing in the power, so that the elevator can be installed at the time of installation. The installation of the smoke detector 18 can be completed only by attaching the smoke detector 18 and connecting the signal line 18b to the relay terminal block 18c.

FIG. 3 shows another embodiment. 1 and 2
Since the same reference numerals denote the same parts, repeated description is omitted.

The hoisting rope 6 runs as follows.
One end of the hoisting rope 6 is connected to the weight guide rail 5
a is fixed to a mounting plate 19 fixed to the top of the a. The hoisting rope 6 from the mounting plate 19 descends to the deflecting pulley 8 attached to the canter weight 3, and when the deflecting pulley 8 is wound, it rises again to the traction sheave 10 side of the drive mechanism 9, and the traction sheave. Wind around 10 rope grooves.

From the traction sheave 10 to the hoisting rope 6
Goes down to the bottom side of the car 2 and rises to the uppermost fixing means (not shown) of the car guide rail 4a via the turning pulleys 7a and 7b of the car 2. Here, the other of the hoisting ropes 6 is fixed.

The driving mechanical device 9 includes the car guide rail 4
a, 4b. The smoke detector 18 is attached to the attachment member 18a, and the car guide rail 4
a, 4b is located above the drive mechanical device 9 fixed thereto.

The ceiling of the car 2 is provided with an inspection port 2a at a position facing the smoke detector 18 when the car 2 is located on the top floor, where the operation of the smoke detector 18 can be confirmed. , Is the same as the above embodiment.

FIG. 4 shows still another embodiment. 1 and 2 denote the same parts, and a description thereof will not be repeated.

The car 2 and the canter weight 3 are connected to a pair of common guide members 19a, 19 standing upright in the hoistway.
b, and these guide members 19a, 1
9b has a U-shaped cross section and is installed so as to face the opening. Then, one of the guide members 19a, 19b has a U-shaped cross section and is used as a car guide rail 20a, 20b for guiding the car 2, and the other leg side is a weight guide rail 21a, 21 for guiding the counterweight 3.
b.

The car 2 and the canter weight 3 are suspended by a hoisting rope 6. One end of the hoisting rope 6 is connected to a lower portion of the car 2, and the other end is connected to the canter weight 3, and is wrapped around the traction sheave 10 in a hanging manner.

The drive mechanism 9 having the traction sheave 10 is mounted and fixed on a machine base 13a. The machine base 13a is fixed to upper portions of U-shaped guide members 19a and 19b.

The smoke detector 18 is mounted on a mounting member 18a, and is mounted above the guide member 19a. An inspection port 2a is provided on the ceiling of the car 2 at the same position as in the above-described embodiments.

Each of the above embodiments is a so-called traction drive elevator in which the car 2 and the canter weight 3 are suspended by the hoisting rope 6 and the hoisting rope 6 is driven by the traction sheave 10. Can also be applied to hydraulic elevators.

FIG. 5 shows another embodiment applied to a hydraulic elevator. The car 2 is a pair of car guide rails 4
The traveling is guided along a, 4b, and is driven up and down by a hydraulic jack 22. The hydraulic jack 22 includes a cylinder 21a and a plunger 22b that protrudes by supplying and discharging pressurized oil into and from the cylinder 21a, and is provided upright at the bottom of the pit of the hoistway 1. The upper end of the plunger 22b is connected to a car frame 2b that supports the car 2.

The smoke detector 18 is mounted on a mounting member 18a, and is mounted above the car guide rails 4a and 4b. The ceiling of the car 2 is provided with the inspection port 2a described in each embodiment.

The maintenance work of the smoke detector 18 can be performed in the same manner as in each embodiment.

FIG. 6 shows still another embodiment of the traction sheave elevator shown in FIG. 1, in which the ends of the hoisting rope 6 are fixed at the tops of the hoistway 1, respectively. And the smoke detector 18
Is the car guide rail 4a via the mounting member 18a.
It differs from FIG. 1 in that it is attached at the upper position of (4b). The other configuration and the maintenance and inspection work of the smoke detector 18 are the same as those of each embodiment.

In each of the above embodiments, the inspection port 2a is provided on the ceiling of the car 2, and when the car 2 stops on the top floor, smoke detection is performed by using equipment installed in the hoistway facing the inspection port 2a. The smoke detector 18 is attached, and the maintenance and inspection of the smoke detector 18 is performed through the inspection port 2a on the ceiling.

However, as shown in the embodiment of FIG.
An inspection port 2a is formed in a side plate forming a side wall of the car 2;
The smoke detector 18 may be attached to the equipment installed in the hoistway at a position that can be inspected from the inspection port 2a, for example, the weight guide rail 5a (5b) via the attachment member 18a.

FIG. 8 shows an embodiment in which the smoke detector 18 is inspected on a car. The difference from FIG. 6 is car 2
The inspection port 2a is not provided in the upper part of the.

In each of the above embodiments, the smoke detector 18 is mounted by using equipment installed in the hoistway, such as the guide rails 4a, 4b, 5a, 5b at the upper position on the top floor or each member of the machine base frame 13. Although the configuration has been described, the smoke detector 18 may be mounted using equipment installed in the hoistway other than the above.

Although the smoke detector 18 for detecting smoke is described as an example of a fire detector, a heat detector for detecting ignition or heat generation may be used.

The inspection port 2a may also be used as a rescue exit provided on the ceiling. However, the rescue exit of the car cannot be opened from inside the car, but can be opened from outside without a key, and the inspection port 2a is opened using a key from inside the car. . Therefore, the inspection port 2a
When both the car and the rescue exit are used, it is necessary to have a configuration that can be opened using the key from inside the car and can be opened from outside without using the key.

[0040]

According to the present invention, the design of the building is free,
It is possible to obtain an elevator device in which maintenance work of the fire detector is simple.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part showing an embodiment of an elevator apparatus according to the present invention.

FIG. 2 is a front view showing a state where the car is stopped at a top floor position in FIG. 1;

FIG. 3 is a schematic perspective view of a main part showing another embodiment of the elevator apparatus according to the present invention.

FIG. 4 is a schematic perspective view of a main part showing still another embodiment of the elevator apparatus according to the present invention.

FIG. 5 is a schematic side view showing a main part of another embodiment of the elevator apparatus according to the present invention.

FIG. 6 is a schematic side view of a main part showing still another embodiment of the elevator apparatus according to the present invention.

FIG. 7 is a schematic side view showing a main part of another embodiment of the elevator apparatus according to the present invention.

FIG. 8 is a schematic side view of an essential part showing still another embodiment of the elevator apparatus according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... hoistway, 2 ... car, 2a ... inspection opening, 3 ... counterweight, 6 ... hoisting rope, 9 ... drive mechanical device, 10
... traction sheave, 18 ... smoke detector (fire detector).

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Haginaka 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Inside the elevator division of Hitachi, Ltd. F term in the Mito Works (reference) 3F304 BA02 DA12 DA16 EA02 3F305 BA11 5G405 AA01 AB01 AB02 CA13 CA16 CA60 FA21

Claims (9)

[Claims] When the car is at the highest position of the hoistway,
An elevator device comprising a fire detector mounted in a hoistway within a range reachable from a car. 2. When the car is at the highest position of the hoistway,
An elevator device comprising a fire detector attached to equipment installed in a hoistway within a range of a car. 3. An elevator apparatus, wherein an inspection port is provided in a car opposite to a fire detector attached to equipment installed in the hoistway above the hoistway. 4. A cab that rises and descends along a guide rail erected in a hoistway, a hoisting rope that suspends the car, a traction sheave that wraps the hoisting rope and drives traction, and this traction In an elevator apparatus including a drive mechanical device having a sheave and installed above the hoistway, and a mechanical base frame supporting the drive mechanical device, a fire detector is attached to the mechanical base frame, and the An elevator apparatus, wherein an inspection port is provided at a position of the car facing the fire detector. 5. A cab that rises and descends along a guide rail erected in a hoistway, a hoisting rope that suspends the car, a traction sheave that wraps the hoisting rope to drive traction, and this traction. In an elevator apparatus including a drive mechanical device having a sheave and installed above the hoistway, and a mechanical base frame supporting the drive mechanical device, a fire detector is attached to the guide rail, and the car An inspection port is provided at a position facing the fire detector. 6. A car and a counterweight which are lifted and lowered along a guide rail erected in a hoistway, a hoisting rope for suspending the car and the counterweight, and the traction drive is performed by winding the hoisting rope. A guide rail for guiding the counterweight in an elevator apparatus including a traction sheave, a drive mechanical device having the traction sheave and installed above the hoistway, and a mechanical base frame supporting the drive mechanical device An elevator apparatus, wherein a fire detector is mounted on the car, and an inspection port is provided at a position of the car facing the fire detector. 7. The elevator apparatus according to claim 4, wherein the inspection port doubles as a rescue exit for rescuing passengers. 8. An elevator apparatus according to claim 4, wherein said fire detector is a smoke detector. 9. An elevator apparatus according to claim 4, wherein said fire detector is a heat detector.