JP2001063934A - Elevator equipment - Google Patents

Abstract

(57) [Problem] An object of the present invention is to improve the workability of installation and maintenance work of a hoisting machine without providing a machine room. SOLUTION: An opening 2a is provided in a ceiling 2, and the opening 2a is provided.
The hoisting machine 6 was disposed by utilizing the area including the space inside and the space above it, and the hoisting machine 6 was supported by the guide rails 3 and 4 via the hoisting machine support member 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine room-less type elevator apparatus having no machine room for installing a hoist.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Unexamined Patent Publication No. 2593288 discloses an elevator apparatus of a machine roomless type having no machine room. In this elevator apparatus, since there is no machine room, a hoist is installed at an upper part in a hoistway.

[0003]

In the conventional elevator apparatus as described above, since the hoist is installed in the hoistway, a space for installing the hoist in the upper part of the hoistway is required. Therefore, the height dimension of the hoistway becomes large. In addition, the installation work and the maintenance and inspection work of the hoist become hoistway work, and the workability is low and it takes time and effort. Furthermore, if the car stops between floors due to some kind of trouble, a structure for operating the hoist from outside the hoistway to rescue passengers is required, and the structure becomes complicated. There were problems such as.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is possible to suppress an increase in the height of a hoistway for installing a hoisting machine. It is another object of the present invention to provide an elevator apparatus that can improve the workability of installation and maintenance work and can easily perform work on a hoist when a car stops between floors.

[0005]

According to a first aspect of the present invention, there is provided an elevator apparatus comprising: a hoistway, a ceiling located at an uppermost portion of the hoistway, and provided with an opening communicating with the hoistway;
A guide rail installed in the hoistway, a hoist support member attached to the guide rail, supported by the guide rail via the hoist support member, and a space in the opening and above A hoist having a rotatable sheave, a rope wound on the sheave, and a rope suspended by a hoistway by this rope, It is provided with a car that can be raised and lowered in a hoistway along a guide rail by a hoisting machine.

An elevator apparatus according to a second aspect of the present invention
A removable protective cover is provided on the ceiling and covers the opening and the hoist.

[0007] An elevator apparatus according to a third aspect of the present invention,
It is provided on the ceiling, has an inspection window facing the hoist, and has a protective cover that covers the opening and the hoist, and an inspection door that opens and closes the inspection window. It is.

[0008] An elevator apparatus according to a fourth aspect of the present invention,
The protective cover has ventilation holes.

[0009] An elevator apparatus according to a fifth aspect of the present invention,
A hoisting machine supporting member having a structure for suppressing noise of the hoisting machine transmitted to the hoistway through the opening is used.

The elevator apparatus according to the invention of claim 6 is:
Provide a plurality of rope holes through the rope in the hoisting machine support member,
The hoist support member closes the opening except for the rope hole.

[0011] The elevator apparatus according to the invention of claim 7 is:
The hoist is arranged so that the rotation axis of the sheave is vertical.

The elevator apparatus according to the invention of claim 8 is:
The hoist is arranged so that the brake device is located at the upper part.

An elevator apparatus according to a ninth aspect of the present invention is
A hoist is mounted on a hoist support member to constitute a hoist unit.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a side view showing the apparatus of FIG. 1, and FIG. 3 is a plan view showing a state in which a ceiling of the apparatus of FIG. 1 has been removed. .

In the figure, a ceiling 2 is provided at the top of a hoistway 1. An opening 2 a communicating with the hoistway 1 is provided in the ceiling 2. In the hoistway 1, a pair of car guide rails 3 and a pair of weight guide rails 4 are provided.
Is installed. At the upper ends of the guide rails 3 and 4, a hoisting machine support member 5 is attached.

A hoist 6 is mounted on the hoist supporting member 5. The load of the hoist 6 is supported by the guide rails 3 and 4 via the hoist support member 5. Further, the entire hoisting machine 6 is disposed in a region including a space in the opening 2a and a space above the opening 2a. Further, the hoist 6
It has a traction sheave 7 as a rotatable sheave and a brake device 8 for braking the traction sheave 7.

In the hoistway 1, there are provided a car 11 which is raised and lowered along the car guide rail 3, and a counterweight 12 which is raised and lowered along the weight guide rail 4. Basket 1
A pair of car suspension wheels 13 is provided at a lower portion of the car 1. A weight suspension wheel 14 is provided above the counterweight 12.

The car 11 and the counterweight 12 are connected to a rope 15
And is suspended in the hoistway 1. Rope 15
Has one end fixed to the hoisting machine support member 5, from which the car hoisting wheel 13, the traction sheave 7, and the weight hoisting wheel 14 are wound in this order, and the other end is connected to the hoisting machine support member 5
Has been fixed.

A waterproof frame 16 is provided on the upper surface of the ceiling 2 along the periphery of the opening 2a. An openable / closable protection cover 17 that closes the opening 2 a is provided on the waterproof frame 16. In this example, since the ceiling 2 is the rooftop of the building, the waterproof frame 16 and the protective cover 17 prevent rainwater from entering the opening 2a.

In such an elevator apparatus, the hoist 6
Is installed not only in the hoistway 1 but in and above the opening 2 a provided in the ceiling 2, so that the installation work and the maintenance and inspection work of the hoist 6 can be performed on the ceiling 2. The workability of installation and maintenance work can be improved. In addition, work on the hoisting machine 6 when the car 11 stops between floors can be easily performed, and passengers can be rescued more quickly.

Further, since the load of the hoisting machine 6 is not applied to the ceiling 2 and can be supported at the bottom of the hoistway 1 via the guide rails 3 and 4, the opening 2a is provided in the ceiling 2. Only the changes on the building side are small. further,
If the size of the opening 2a is large enough to allow only the hoist 6 and the rope 15 to pass through, processing to the building can be minimized.

Embodiment 2 FIG. Next, FIG. 4 is a sectional view showing a main part of an elevator apparatus according to Embodiment 2 of the present invention,
FIG. 5 is a sectional view taken along line VV in FIG. FIG.
Corresponds to a sectional view taken along line IV-IV in FIG.

In the figure, the hoist 6 is installed on a hoist support member 21 attached to the guide rails 3, 4. The hoisting machine support member 21 is provided with a plurality of rope holes 21a through which the rope 15 passes. The hoisting machine support member 21 covers the opening 2a except for the rope hole 21a.

On the upper surface of the ceiling portion 2, a convex portion 2c is provided along the periphery of the opening 2a. A plurality of fixing members 22 such as bolts and nuts protect the protective cover 2 on the convex portion 2c.
3 is fixed. The hoisting machine 6 is covered with a protective cover 23. An inspection window 23a is provided on a surface of the protective cover 23 facing the brake device 8. Further, the protective cover 23 is provided with a ventilation port 23b.

An inspection window 2 is provided on the outer periphery of the protective cover 23.
An inspection door 24 for opening and closing 3a and a ventilation port cover 25 for preventing rainwater from entering through the ventilation port 23b are provided. Other configurations are the same as those of the first embodiment.

According to such a configuration, most of the opening 2a is closed by the hoisting machine support member 21, so that the noise from the hoisting machine 6 passes through the opening 2a and enters the hoistway 1 Is suppressed. In addition, even if the hoisting machine 6 fires, the intrusion of flame into the hoistway 1 is prevented. Further, since the inspection window 23a is provided in the protection cover 23 and can be opened and closed by the inspection door 24, the maintenance and inspection work for the hoisting machine 6 can be easily performed without removing the entire protection cover 23.

Further, since the ventilation port 23b is provided,
It is possible to prevent heat from being trapped in the protective cover 23. When the temperature of the hoist 6 rises, an electric fan or the like may be provided inside the ventilation port 23b to forcibly ventilate the inside of the protective cover 23.

In the above example, the hoisting machine support member 21
Although the noise is suppressed by simply closing the opening 2a, another soundproof structure such as a sound insulating material or a sound absorbing material may be used.

Embodiment 3 Next, FIG. 6 is a front view showing an elevator apparatus according to Embodiment 3 of the present invention, FIG. 7 is a side view showing the apparatus of FIG. 6, and FIG. 8 is a plan view showing a state where the ceiling of the apparatus of FIG. FIG. In this example, the hoisting machine 6 is installed such that the rotation axis of the traction sheave 7 is vertical and the brake device 8 is located at the top. For this reason, a car-side turning wheel 9 and a weight-side turning wheel 10 for changing the direction of the rope 15 by 90 degrees are mounted on the hoisting machine support member 5. Other configurations are the same as those of the first embodiment.

In such an elevator apparatus, the hoist 6
Is laid down, and most of the hoisting machine 6 is arranged in the opening 2a, so that the amount of protrusion above the ceiling 2 can be reduced. Further, since the brake device 8 is disposed on the upper side, the workability of the operation for the hoist 6 can be further improved.

Embodiment 4 FIG. Next, FIG. 9 is a front view showing a 1: 1 roping type elevator apparatus according to Embodiment 4 of the present invention, FIG. 10 is a side view showing the apparatus of FIG. 9, and FIG. FIG. 12 is a plan view showing a state in which the protective cover of the apparatus in FIG. 9 is removed, and FIG. 13 is a side view showing the hoist unit in FIG.

In the figure, on the guide rails 3 and 4,
A hoisting machine support member 18 is attached. The hoist 6 and the deflector 19 are mounted on the hoist support member 18. The car 11 has a counterweight 1 at one end of the rope 15.
2 are respectively suspended from the other end of the rope 15. An intermediate portion of the rope 15 is wound around the traction sheave 7 and the deflector wheel 19.

The hoisting machine support member 18 is provided with a plurality of rope holes 18a through which the rope 15 passes. The hoist unit 20 includes a hoist support member 18, a hoist 6, and a deflector 19. Other configurations are the same as those of the first embodiment.

As described above, the present invention can be applied to the elevator apparatus of the 1: 1 roping system, and the installation work and the maintenance inspection work of the hoisting machine 6 can be performed on the ceiling 2. And the workability of maintenance and inspection work can be improved.

The hoisting machine unit 20 is constructed by mounting the hoisting machine 6 and the deflecting wheel 19 on the hoisting machine support member 18 in advance. Since the guide rails 3 and 4 are attached to the guide rails 3 and 4 from the upper side through the opening 2a, the work of installing the hoisting machine 6 on site can be facilitated.

In the first to fourth embodiments, an elevator apparatus using a hoist having a traction sheave has been described. However, a sheave for winding a rope, that is, a winding type hoist having a drum is used. The present invention can be applied to an elevator device.

In the first to fourth embodiments, the entire hoist is disposed above the lower surface of the ceiling. For example, only a part of the hoist is disposed in the hoistway, and May be arranged in the opening. Furthermore, a hoisting machine support member penetrating the opening may be used, and the entire hoisting machine may be arranged in a space above the opening.

Further, in the first to fourth embodiments, the case where the ceiling part is the roof floor of the building has been described, but the ceiling part does not necessarily have to be the roof floor if it is located at the top of the hoistway. . Further, in Embodiments 1 to 4, the load of the hoist is supported by the four guide rails, but may be supported by only some of the plurality of guide rails.

[0039]

As described above, in the elevator apparatus according to the first aspect of the present invention, an opening is provided in the ceiling, and at least one of the hoisting machines is provided in a region including the space inside the opening and the space above the opening. The hoisting machine is supported on the guide rails via the hoisting machine support member, so that the hoisting machine can be installed and maintenance work can be performed on the ceiling. Workability of work can be improved. In addition, work on the hoist when the car stops between floors can be easily performed, and passengers can be rescued more quickly. Furthermore, since the load of the hoist can be supported at the bottom of the hoistway via guide rails without being applied to the ceiling, it is only necessary to provide an opening in the ceiling, and changes on the building side are small. I'm done.

The elevator apparatus according to the second aspect of the present invention is provided on the ceiling and has a removable protective cover for covering the opening and the hoist, so that the maintenance work of the hoist can be easily performed. Can be.

According to the third aspect of the present invention, the inspection window is provided on the protective cover, and the inspection window is opened and closed by the inspection door, so that the maintenance and inspection work of the hoist can be easily performed. Can be.

In the elevator apparatus according to the fourth aspect of the present invention, since the ventilation hole is provided in the protection cover, it is possible to prevent heat from being trapped in the protection cover.

In the elevator apparatus according to the fifth aspect of the present invention, since the hoisting machine support member having a structure for suppressing the noise of the hoisting machine transmitted to the hoistway through the opening is used, the noise of the hoisting machine is reduced. It can be prevented from being transmitted to passengers inside.

In the elevator apparatus according to the sixth aspect of the present invention, a plurality of rope holes for passing ropes are provided in the hoist support member, and the hoist support member closes the opening except for the rope hole. The soundproofing effect can be obtained with a simple structure.

In the elevator apparatus according to the seventh aspect of the present invention, since the hoist is arranged so that the rotation axis of the sheave is vertical, the amount of protrusion of the hoist from the upper surface of the ceiling can be reduced. .

In the elevator apparatus according to the eighth aspect of the present invention, since the hoist is arranged so that the brake device is located at the upper part, the workability of maintenance and inspection work of the hoist can be improved.

According to the ninth aspect of the present invention, since the hoist unit is configured by mounting the hoist on the hoist support member, the workability of the installation work can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an elevator apparatus according to Embodiment 1 of the present invention.

FIG. 2 is a side view showing the apparatus of FIG.

FIG. 3 is a plan view showing a state in which a ceiling of the apparatus of FIG. 1 is removed.

FIG. 4 is a sectional view showing a main part of an elevator apparatus according to Embodiment 2 of the present invention.

FIG. 5 is a sectional view taken along line VV in FIG.

FIG. 6 is a front view showing an elevator apparatus according to Embodiment 3 of the present invention.

FIG. 7 is a side view showing the apparatus of FIG. 6;

8 is a plan view showing a state in which a ceiling of the apparatus of FIG. 6 is removed.

FIG. 9 is a front view showing an elevator apparatus according to Embodiment 4 of the present invention.

FIG. 10 is a side view showing the apparatus of FIG. 9;

11 is a plan view showing a state in which a ceiling of the apparatus of FIG. 9 is removed.

FIG. 12 is a plan view showing a state where a protective cover of the apparatus of FIG. 9 is removed.

FIG. 13 is a side view showing the hoist unit of FIG. 9;

[Explanation of symbols]

1 hoistway, 2 ceiling, 2a opening, 2b bottom,
3 car guide rails, 4 weight guide rails, 5, 1
8,21 hoisting machine support members, 6 hoisting machines, 7 traction sheaves, sheaves, 8 brake devices, 11 cars, 1
5 Rope, 17, 23 protective cover, 21a rope hole, 23a inspection window, 23b ventilation port, 24 inspection door, 20 hoist unit.

Claims (9)

[Claims] 1. A hoistway, a ceiling located at the uppermost part of the hoistway and provided with an opening communicating with the hoistway, a guide rail installed in the hoistway, A mounted hoist support member, supported by the guide rail via the hoist support member, and at least partially disposed in a region including the space in the opening and the space above the opening; A hoist having a rotatable sheave; a rope wound on the sheave; and a rope suspended by the hoistway in the hoistway, along the guide rail by the hoist. An elevator apparatus comprising a car that is raised and lowered in the hoistway. 2. The elevator apparatus according to claim 1, further comprising a removable protective cover provided on the ceiling and covering the opening and the hoist. 3. An inspection window provided on the ceiling and facing the hoist, a protective cover covering the opening and the hoist, and opening and closing the inspection window. The elevator apparatus according to claim 1, further comprising an inspection door. 4. The elevator apparatus according to claim 3, wherein the protective cover is provided with a ventilation port. 5. The hoisting machine supporting member has a structure for suppressing noise of the hoisting machine transmitted to the hoistway through the opening. An elevator apparatus according to claim 1. 6. A hoisting machine support member is provided with a plurality of rope holes through which a rope passes.
The elevator apparatus according to claim 5, wherein the opening is closed except for a portion of the rope hole. 7. The elevator apparatus according to claim 1, wherein the hoist is arranged so that a rotation axis of the sheave is vertical. 8. The elevator apparatus according to claim 7, wherein the hoist is arranged so that the brake device is located at an upper portion. 9. The elevator apparatus according to claim 1, wherein a hoist is mounted on the hoist supporting member to form a hoist unit.