WO2003093155A1

WO2003093155A1 - Elevator

Info

Publication number: WO2003093155A1
Application number: PCT/JP2002/004329
Authority: WO
Inventors: Shuki Hamaguchi
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2002-04-30
Filing date: 2002-04-30
Publication date: 2003-11-13
Also published as: KR20040010737A; JPWO2003093155A1; CN1649790A; EP1500620A4; EP1500620A1

Abstract

An elevator comprising a deflector wheel for guiding a main rope from a drive sheave to a cage pulley disposed at an upper part in the elevator shaft. A driver is disposed to be superposed on the cage on the vertical projection surface and the deflector wheel is disposed in a plane intersecting the rotational axis of the drive sheave perpendicularly and including the drive sheave such that the rotational axis thereof extends in parallel with the rotational axis of the drive sheave.

Description

Description Elevator overnight device

Technical field

The present invention relates to an elevator apparatus in which a drive device is disposed in an upper part of a hoistway. Background art

Conventionally, for example, Japanese Patent Laid-Open Publication No. Hei 10-1393932 discloses an elevator system in which a driving device is disposed above a hoistway without a machine room above the hoistway. Suelebe overnight is shown. In such an elevator system, the height of the building can be made lower than when a separate machine room is provided above the hoistway, but the space for installing the drive device in the upper part of the hoistway is increased. Need to secure. For this reason, it is desirable to use the space in the hoistway as efficiently as possible. Disclosure of the invention

The present invention has been made in order to solve the above-described problems, and to provide an elevator apparatus that can efficiently use a space in a hoistway and reduce a cross-sectional area of the hoistway. With the goal.

The elevator apparatus according to the present invention is a hoistway, a car that is raised and lowered in the hoistway, a car suspension car provided in the car, a counterweight that is disposed behind the car and that is raised and lowered in the hoistway, A counterweight suspender provided on the counterweight, a drive unit disposed at an upper portion of the hoistway, and a drive sheave rotated by the drive unit. A driving device that is arranged so that the rotation axis extends horizontally and that raises and lowers the car and the counterweight; a first end and a second end connected to the upper part of the hoistway; A main rope that is wrapped around a hoisting wheel, a drive sheave, and a counterweight hoisting wheel to suspend a car and a counterweight in a hoistway, and is disposed at an upper part of a hoistway, and the main rope is hung. From the drive sheave to reduce the number of car suspension vehicles and counterweight suspension vehicles. And at least one deflecting wheel that guides the main rope to either one of them, the driving device is arranged so as to overlap with the car on the vertical projection plane, and the deflecting wheel has a rotation axis that is coincident with the rotation axis of the driving gear. They are arranged so as to extend in parallel, and intersect at right angles with the rotation axis of the drive sheave, and are arranged in a plane including the drive sheep. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a plan view showing the elevator apparatus of FIG. 1,

FIG. 3 is a front view showing the driving device of FIG. 1,

FIG. 4 is a plan view showing the driving device of FIG. 1,

FIG. 5 is a perspective view showing an elevator apparatus according to Embodiment 2 of the present invention, FIG. 6 is a plan view showing the elevator apparatus of FIG. 5,

FIG. 7 is a perspective view showing an elevator apparatus according to Embodiment 3 of the present invention, and FIG. 8 is a plan view showing an elevator apparatus according to Embodiment 4 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1

FIG. 1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a plan view showing the elevator apparatus of FIG.

In the figure, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1. The car 4 is guided up and down the hoistway 1 by the car guide rail 2. The counterweight 5 is arranged behind the car 4 and is guided by the counterweight guide rail 3 to be raised and lowered in the hoistway 1.

In the vertical projection plane, a straight line connecting the centers of the pair of car guide rails 2 extends parallel to the frontage direction of the car 4 and passes through the center of gravity of the car 4. A straight line connecting the centers of the pair of counterweight guide rails 3 also extends in parallel with the frontage direction of the car 4. A machine base 6 is fixed near the upper ends of the one car guide rail 2 and the pair of counterweight guide rails 3. Raise and lower the basket 4 and the counterweight 5 on the machine base 6 A driving device (winding machine) 7 is mounted. The drive device 7 has a drive device main body 8 including a motor section and a brake section, and a drive sheep 9 rotated by the drive device main body 8.

The drive device 7 is arranged such that the rotation axis of the drive sheave 9 extends horizontally. Further, the driving device 7 is disposed so as to overlap the rear corner of the car 4 and the counterweight 5 on the vertical projection plane. Further, as the driving device 7, a thin-type winding machine having a diameter larger than an axial dimension is used.

Furthermore, the driving device 7 is arranged such that the driving device main body 8 is located on the car 4 side, and the driving chip 9 faces the hoistway wall facing the side surface of the car 4 almost in parallel.

A plurality of (only one is shown in the figure) main ropes 10 around which the car 4 and the counterweight 5 are suspended in the hoistway 1 are wound around the drive sheave 9. A rope support 11 is fixed near the upper end of the cage guide rail 2. The first end 10 Oa of the main rope 10 is connected to the rope support 11 via a cage cleat 12. The second end 1 Ob of the main rope 10 is connected to the machine base 6 via the counterweight side cleat 13.

At the lower part of the car 4, a pair of car hanging wheels 14 around which the main rope 10 is wound are provided. Above the counterweight 5, a counterweight suspension wheel 15 around which the main rope 10 is wound is provided.

The machine base 6 is provided with a rotatable deflecting wheel 16 that guides the main rope 10 from the driving sheave 9 to the car suspension wheel 14. The deflecting wheel 16 is arranged so that its rotation axis extends parallel to the rotation axis of the drive sheave 9 and includes the drive sheave 9 that intersects at right angles with the rotation axis of the drive sheave 9. They are arranged in a plane. That is, on the vertical projection plane, the drive sheave 9 and the deflecting wheel 16 are arranged on a straight line. The main rope 10 is wound from the first end 10 a in the order of the car suspension wheel 14, the deflecting vehicle 16, the drive sheep 9 and the counterweight suspension vehicle 15, and the second end 1 Ob has been reached. That is, the car 4 and the counterweight 5 are suspended by a 2: 1 bing method.

The part of the main rope 10 extending from the counterweight suspender wheel 14 to the car-side cleat 12 is the cage It is located on the front side of the guide rail 2. A portion of the main rope 10 extending from the counterweight suspender wheel 14 to the deflector wheel 16 is disposed behind the car guide rail 2. As a result, the car 4 is suspended at the position of the center of gravity.

FIG. 3 is a front view showing the driving device of FIG. 1, and FIG. 4 is a plan view showing the driving device 7 of FIG. In the figure, a pair of brackets 17 facing each other are fixed on a machine base 6. The driving device 7 is disposed between the brackets 17. A plurality of bottom vibration isolating members 18 are interposed between the bottom of the drive device 7 and the machine base 6. Further, between the driving device 7 and the bracket 17, side vibration isolating members 19 are interposed. These vibration isolating members 18 and 19 are made of an elastic material such as rubber, for example.

According to the layout of the machine room-less elevator apparatus, the space in the hoistway 1 can be efficiently used, and the cross-sectional area of the hoistway 1 can be reduced. In addition, since the driving device 7 is disposed so that the driving device main body 8 is located on the car 4 side, maintenance of the motor and brake portions included in the driving device main body 8 can be easily performed from the car 4. As well as sufficient space for maintenance.

In addition, since the bottom vibration isolator 18 is interposed between the bottom of the driving device 7 and the machine base 6, it is possible to prevent the vertical vibration of the driving device 7 from being transmitted to the car 4 and the building. Can be. Furthermore, since the side vibration isolating member 19 is interposed between the driving device 7 and the bracket 17, it is possible to suppress the horizontal vibration of the driving device Ί from being transmitted to the car 4 and the building. .

Furthermore, since the driving device 7 and the deflector 16 are mounted on the common machine base 6, the structure is simple and the installation work is easy. Embodiment 2

Next, FIG. 5 is a perspective view showing an elevator apparatus according to Embodiment 2 of the present invention, and FIG. 6 is a plan view showing the elevator apparatus of FIG. In the figure, the driving device 7 is arranged so as to overlap the side of the car 4 in the vertical projection plane. The machine base 6 has a rotatable deflector 2 1 that guides the main rope 10 from the drive sheave 9 to the counterweight suspender 15. Is attached.

The deflecting wheel 21 is disposed so that its rotation axis extends in parallel with the rotation axis of the drive sheave 9, and includes the drive sheave 9 at right angles to the rotation axis of the drive sheave 9. They are arranged in a plane. That is, on the vertical projection plane, the drive sheave 9 and the deflector car 21 are arranged on a straight line. Other configurations are the same as those in the first embodiment. C According to the layout of the machine room-less elevator system, the space in the hoistway 1 is efficiently used, and the cross-sectional area of the hoistway 1 Can be kept small. In addition, by adjusting the position of the driving device 7 according to the size of the car 4, it is possible to easily adjust the main rope 10 to pass near the center of gravity of the car 4. As a result, the load imposed on the car guide rail 2 and the car-side cleats 12 due to the imbalance of the weight of the car 4 and the imposed load can be reduced. Embodiment 3.

Next, FIG. 7 is a perspective view showing an elevator apparatus according to Embodiment 3 of the present invention. In the figure, first and second counterweight suspenders 22 a and 22 b around which the main rope 10 is wound are provided above the counterweight 5. Other configurations are the same as those of the first embodiment.

In this way, by using the two counterweight suspenders 2 2a and 22b, it is possible to vertically arrange the main ropes 10 extending upward from the counterweight suspenders 2 2a and 22b. Thus, the counterweight 5 can be raised and lowered stably. Embodiment 4.

Next, FIG. 8 is a plan view showing an elevator apparatus according to Embodiment 4 of the present invention. In the figure, a drive unit (hoist) 23 is mounted on a machine base 6. The driving device 23 has a driving device main body 24 including a motor section and a brake portion, and a driving sheave 25 rotated by the driving device main body 24. As the driving device 23, a cylindrical hoist having an axial dimension larger than a diameter is used. Other configurations are the same as those of the first embodiment.

Even when the driving device 23 composed of such a cylindrical hoist is used, The space in the road 1 can be efficiently used, and the cross-sectional area of the hoistway 1 can be reduced.c In the above example, the machine base 6 is supported by the guide rails 2 and 3, but the machine base May be supported by the hoistway structure. In this case, the load applied to the guide rail can be reduced, and the structure of the guide rail can be simplified. In the above example, the drive sheave and the car suspension wheel or the counterweight suspension vehicle are used. A deflector wheel is placed between the drive sheave and the car suspension wheel and the counterweight suspension wheel. That is, a plurality of deflecting wheels may be used.

Claims

The scope of the claims

1. The hoistway,

A car that is raised and lowered in the hoistway,

A car hanging car provided in the above car,

A counterweight arranged behind the car and lifted in the hoistway;

A counterweight suspender provided on the counterweight,

It has a drive device main body arranged at the upper part in the hoistway, and a drive sheep rotated by the drive device main body, and is arranged so that the rotation axis of the drive sheave extends horizontally. A driving device for raising and lowering the car and the counterweight;

A first end and a second end connected to an upper portion of the hoistway, and wound around the car suspension wheel, the drive sheave, and the counterweight suspension vehicle, A main rope for suspending the car and the counterweight in the hoistway; and

At least one lead that is disposed at an upper portion in the hoistway and is wound around the main rope and guides the main rope from the drive sheave to at least one of the car suspension wheel and the counterweight suspension vehicle; Deflector car

And an elevator device equipped with

The drive device is disposed so as to overlap the car on a vertical projection plane, and the deflecting wheel is disposed so that a rotation axis thereof extends in parallel with a rotation axis of the drive sheep. An elevator device which is arranged in a plane intersecting the rotation axis at right angles and including the drive sheave.

2. The driving device is arranged so as to overlap with a part of a rear corner of the car and the counterweight in the vertical projection plane, and the deflector moves the main rope from the driving sheep to the car suspension vehicle. 2. The elevator apparatus according to claim 1, wherein the device guides the operation.

3. The driving device according to claim 1, wherein the driving device is disposed so as to overlap a side portion of the car in a vertical projection plane, and the deflecting wheel guides the main rope from the driving sheave to the counterweight hanging vehicle. Elevator overnight device.

4. The elevator apparatus according to claim 1, wherein the driving device and the deflecting wheel are supported by a common machine base fixed to an upper portion in the hoistway.