WO2002022486A1

WO2002022486A1 - Elevator device

Info

Publication number: WO2002022486A1
Application number: PCT/JP2000/006230
Authority: WO
Inventors: Atsushi Mitsui
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2000-09-12
Filing date: 2000-09-12
Publication date: 2002-03-21
Also published as: EP1319627A4; DE60043516D1; EP1319627B1; CN1387491A; EP2042462A1; CN1178844C; EP1319627A1; EP2042462B1; JPWO2002022486A1

Abstract

An elevator device, wherein first and second main rope connection parts (9, 10) are provided on a car (4) so as to sandwich the car (4) in a vertical plane of projection, first and second car side deflector sheaves (11, 12) are disposed above the first and second main rope connection parts (9, 10) on the upper inside of a hoistway (1), a balance weight side deflector sheave (13) is disposed above a balance weight (5) on the upper inside of the hoistway (1), and a main rope group (15) comprises a first main rope (16) having one end part connected to the first main rope connection part (9) through the first car side deflector sheave (11) and the other end part connected to the balance weight (5) through the balance weight side deflector sheave (13) and a second main rope (17) having one end part connected to the second main rope connection part (10) through the second car side deflector sheave (12) and the other end part connected to the balance weight (5).

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

In the conventional machine room-less elevator, an evening where a drive device is installed in the pit of the hoistway is often used. However, this type required a countermeasure against flooding of the peat.

On the other hand, in the type in which the drive unit is placed in the upper part of the hoistway, the main ropes are connected to the upper beams of the car, especially when trying to suspend the center of gravity of the car in the case of 1: 1 bing. Therefore, it is necessary to secure a space corresponding to the car and the top of the hoistway, and the height dimension of the hoistway increases. Disclosure of the invention

The present invention has been made to solve the above-described problems, and an elevator capable of suppressing an increase in the height dimension of a hoistway while arranging a driving device in an upper portion of the hoistway. The purpose is to obtain the evening equipment.

An elevator apparatus according to the present invention is a hoistway having a hoistway wall, which is disposed at an upper portion in the hoistway, and is rotated by a drive main body and a rotation axis extending along a vertical direction. A driving device having a driving ship, a main rope group wound around the driving ship, and a car suspended in the hoistway by the main rope group and moved up and down in the hoistway by the driving device. First and second main cable connections provided on the car so as to sandwich the car in the vertical projection plane, above the first and second main cable connections on the hoistway A first and second car turn-over wheels disposed at the upper and lower ends of the hoistway, and a counterweight turnover disposed above the counterweight in the hoistway; Has a first end connected to the first main rope connecting portion via the first car-side turning wheel, and a second end connected to the counterweight via the counterweight-side turning wheel. And a second main rope, one end of which is connected to the second main rope connecting portion via the second return wheel, and the other end of which is connected to the counterweight via the counterweight side return wheel. It is what you have.

Further, the elevator apparatus according to the present invention is a hoistway having a hoistway wall, which is disposed at an upper part in the hoistway, and is provided with a drive main body and a drive shaft with a rotation axis extending along a vertical direction as a center. A driving device having a rotating drive shaft, a car-side end and a counterweight-side end fixed to an upper portion of the hoistway, and an intermediate portion wound around the driving sheave. The first and second side surfaces, which are suspended in the hoistway by the main rope between the main rope, the driving sheave, and the car side end, and which are opposed to each other, and the hoistway is driven by the driving device. A car that is raised and lowered inside, is disposed between the first side surface and the hoistway wall, and is suspended in the hoistway by a main rope between the drive sheave and the counterweight side end, and is driven The counterweight, which is raised and lowered in the hoistway by the device, is placed on the upper part of the hoistway, and the main rope is The car is turned around and the main rope is guided from the drive sheave to the car, and the car is turned over.The car is placed at the top of the hoistway, and the main rope is wound around and the main rope is guided from the drive sheave to the counterweight. A driving device is disposed above a portion of the counter on the counterweight side at the rear of the car, and the car and the counterweight return wheel are lifted up and down with the first side. It is arranged above the space between the road wall. BRIEF DESCRIPTION OF THE FIGURES

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

FIG. 3 is a perspective view showing the structure of the first and second main ropes of FIG. 1,

FIG. 4 is a schematic plan view showing an elevator apparatus according to Embodiment 2 of the present invention, FIG. 5 is a side view showing the elevator apparatus of FIG. 4,

FIG. 6 is a schematic plan view showing an elevator apparatus according to Embodiment 3 of the present invention, and FIG. 7 is a side view showing the elevator apparatus of FIG. 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 schematic plan view showing an elevator apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a side view showing the elevator apparatus of FIG.

In the figure, the hoistway 1 has hoistway walls 1a to 1c. In the hoistway 1, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed. The car 4 is guided up and down the hoistway 1 by the car guide rail 2. The counterweight 5 is guided by the counterweight guide rail 3 and is moved up and down in the hoistway 1. The counterweight 5 is located behind the car 4.

In the upper part of the hoistway 1, a driving device (winding machine) 6 for raising and lowering the car 4 and the counterweight 5 is horizontally arranged. The driving device 6 is disposed above one corner of the rear of the car 4. The drive device 6 has a drive device main body 7 and a drive sheave 8. The drive sheave 8 is rotated by the drive device body 7 about a rotation axis extending along the vertical direction.

On both sides of the lower part of the car 4, first and second main cable connecting portions 9, 10 are provided. The first and second main rope connecting portions 9 and 10 are symmetrically arranged about the position of the center of gravity of the car 4 so as to sandwich the car 4 in the vertical projection plane.

Above the first and second main rope connecting portions 9 and 10 in the hoistway 1, first and second car-side turnovers 11 and 12 are arranged. Above the counterweight 5 in the upper part of the hoistway 1, a counterweight return wheel 13 is disposed. These return wheels 11 to 13 are rotatable about a rotation axis extending along the horizontal direction.

In addition, the first and second car return wheels 11 and 12 are arranged between the area where the car 4 is projected vertically and the hoistway walls la and 1b, and the first and second car The car turnovers 11 and 12 are parallel to the shaft walls 1a and 1b, respectively. Above a part of the other corner of the rear part of the car 4, there is disposed a direction-changing pulley 14 that is rotatable about a rotation axis extending in the vertical direction.

The drive sheave 8 has a car 4 and a counterweight 5 suspended from the hoistway 1 in a main rope group 1.

5 is wound. The main rope group 15 has a plurality of first main ropes 16 and a plurality of second main ropes 17. These main ropes 1 6, 1 7 are each synthetic fiber It is composed of rope.

The first main rope 16 has one end connected to the first main rope connecting portion 9 via the first car side return wheel 11 and the other end connected via the counterweight return side wheel 13. Connected to the top of weight 5. The second main rope 17 has one end connected to the second main rope connecting portion 10 via the direction change pulley 14 and the second return wheel 12, and the other end connected to the counterweight return side return wheel. It is connected to the top of the counterweight 5 via 13.

That is, the first main rope 16 and the second main rope 17 connected to the counterweight 5 are branched in two directions by the drive sheave 8 and connected to the car 4.

Next, Fig. 3 is a perspective view showing the structure of the first and second main ropes 16 and 17 in Fig. 1 c. In Fig. 3, a plurality of internal strands 2 2 and an inner strand layer 24 having a filling strand 23 disposed in a gap between the inner strands 22. Each internal strand 22 is composed of a plurality of aramide fibers and an impregnating material such as polyurethane. The filling strand 23 is made of, for example, polyamide.

An outer strand layer 26 having a plurality of outer strands 25 is arranged on the outer periphery of the inner strand layer 24. Each outer strand 25, like the inner strand 22, is composed of a plurality of aramide fibers and an impregnating material such as polyurethane.

Between the inner strand layer 24 and the outer strand layer 26, in order to avoid abrasion of the strands 22 and 25 due to friction between the strands 22 and 25 of the sheave of the drive sheave 11 etc. Is disposed. Further, a protective coating layer 28 is arranged on the outer periphery of the outer strand layer 26.

The car 4 and the counterweight 5 are suspended in the hoistway 1 by a plurality of main ropes 12 having the above structure. Synthetic fiber mouthpieces have a higher coefficient of friction and are more flexible than steel ropes.

In such an elevator apparatus, the main rope group 15 is divided into the first and second main ropes 16 and 17 and the car 4 is divided into the first and second main ropes arranged on both sides thereof. Since the connection portions 9 and 10 are used to suspend the car, the car 4 can be suspended stably at its center of gravity. Further, since the first and second main rope connecting portions 9 and 10 are arranged on both sides of the car 4, it is not necessary to provide a connecting portion for the main rope group 15 at the upper part of the car 4. Therefore, the size of the upper part of the car 4 can be reduced, and the increase in the height of the hoistway 1 can be suppressed while the driving device 6 is arranged in the upper part of the hoistway 1.

Further, since the first and second car side turnovers 1 1 and 1 2 are arranged between the area where the car 4 is projected vertically and the hoistway walls la and lb, the car 4 and the car 4 There is nothing to do. Therefore, an increase in the height of the hoistway 1 can be suppressed.

If the lower ends of the first and second car-side turning wheels 11 and 12 are arranged lower than the car ceiling position when the car 4 is located at the highest position, the height of the hoistway 1 will be further increased. An increase in size can be suppressed.

Furthermore, a counterweight 5 is arranged behind the car 4 and a drive 6 is arranged above one corner part of the rear of the car 4 and above the other corner of the rear of the car 4 Since the direction change pulleys 14 are arranged, the space in the hoistway 1 can be effectively used to place the equipment, and the change in the frontage and depth of the car 4 can be easily handled. be able to.

In addition, since the first and second main ropes 16 and 17 made of synthetic fiber rope having a high coefficient of friction and excellent flexibility were used, the drive sheave 8 and the return wheel 1 1 to 1 were used. 3 and the diameter of the pulley 14 can be reduced, and an increase in the height of the hoistway 1 can be suppressed. Embodiment 2

Next, FIG. 4 is a schematic plan view showing an elevator apparatus according to Embodiment 2 of the present invention, and FIG. 5 is a side view showing the elevator apparatus of FIG.

In the figure, a first directional change pulley 18 that is rotatable about a rotation axis extending in the vertical direction is disposed above the other corner of the rear part of the car 4. The first and second main ropes 16 and 17 are wound around a first direction change pulley 18 and are branched by the first direction change pulley 18.

Between the first direction change pulley 18 and the first car side turning wheel 11, a second direction change pulley 19 rotatable about a rotation axis extending along the vertical direction is disposed. Have been. The first main rope 16 is transferred from the first diverting pulley 18 to the first main rope connecting section 9 via the second diverting pulley 19 and the first car turning wheel 11. It is connected. Other configurations are the same as those of the first embodiment.

In such an elevator apparatus, the first and second main ropes 16 and 17 are branched by the first turning pulley 18, so that the same effect as in the first embodiment can be obtained. In addition, the winding angles of the first and second main ropes 16 and 17 with respect to the driving sieve 8 can be made the same, and a sufficient winding angle can be obtained. Embodiment 3.

Next, FIG. 6 is a schematic plan view showing an elevator apparatus according to Embodiment 3 of the present invention, and FIG. 7 is a side view showing the elevator apparatus of FIG.

In the figure, the hoistway 31 has hoistway walls 31a to 31c. In the hoistway 31, a pair of car guide rails 32 and a pair of counterweight guide rails 33 are provided. The car 34 is guided by the car guide rails 32 and is moved up and down in the hoistway 31. The car 34 has first and second side surfaces 34a and 34b facing each other.

The counterweight 35 is guided by the counterweight guide rail 33 and is moved up and down in the hoistway 31. The counterweight 35 is disposed between the first side surface 34a of the car 34 and the shaft wall 31a.

In the upper part of the hoistway 31, a driving device (winding machine) 36 that raises and lowers the car 34 and the counterweight 35 is horizontally arranged. The driving device 36 is disposed above a part of a corner at one rear portion of the car 34. The driving device 36 has a driving device main body 37 and a driving sheave 38. The drive sheave 38 is rotated by the drive main body 37 about a rotation axis extending along the vertical direction.

The car 34 and the counterweight 35 are suspended in the hoistway 31 by a main rope 39 made of a synthetic fiber rope. The main rope 39 is a car-side end 39 a fixed to the upper car side and the counterweight side cleats 40 a and 40 b in the hoistway 31, and a counterweight side end. It has a part 39 b, and an intermediate part is wound around the drive sheave 38. The structure of the main rope 39 is the same as in FIG. The car 34 is suspended in the hoistway 31 by the main rope 39 between the drive sheave 38 and the car side end 39a. The counterweight 35 is suspended in the hoistway 31 by the main rope 39 between the drive sheave 38 and the counterweight end 39 b.

In the upper part of the hoistway 3 1, a car that guides the main rope 39 from the drive sheep 38 to the car 34, a car return wheel 4 1, and a main rope 39 that is counterbalanced from the drive sheave 38 5 The counterweight 42 is disposed to lead to the counterweight. The car-side and counterweight-side return wheels 41, 42 are arranged above the space between the first side surface 34a of the car 34 and the hoistway wall 31a.

A lower part of the car 34 is provided with a pair of rotatable car suspension wheels 43 around which the main rope 39 is wound. Above the counterweight 35, a rotatable counterweight suspension wheel 44 around which the main rope 39 is wound is provided.

In such an elevator system, the car and the counterweight side return wheels 4 1, 4 are provided between the first side surface 34 a of the car 34 on the vertical projection plane and the hoistway wall 31 a. Since 2 is arranged, the plane dimensions of the hoistway 31 can be reduced. In addition, the winding angle of the main cable 39 with respect to the drive sheave 38 can be sufficiently ensured.

Claims

The scope of the claims

1. A hoistway having a hoistway wall,

A drive unit disposed at an upper portion in the hoistway and having a drive unit main body and a drive unit rotated by the drive unit main unit around a rotation axis extending in a vertical direction. The main rope group that is being squeezed, and

The car and the counterweight are suspended in the hoistway by the main rope group, and lifted and lowered in the hoistway by the driving device.

And an elevator device equipped with

The car is provided with first and second main cable connecting portions so as to sandwich the car in a vertical projection plane, and the first and second main cable connecting portions are provided above the hoistway. The first and second car-side turnovers are disposed above, and the counterweight turnover is disposed above the counterweight in the upper part of the hoistway, One end of the main rope group is connected to the first main rope connecting portion via the first car-side return wheel, and the other end is connected to the counterweight via the counterweight-side return wheel. And one end of the first main rope is connected to the second main rope connecting portion via the second return wheel, and the other end is connected to the balance via the counterweight side return wheel. An elevator device having a second main rope connected to the weight.

2. The elevator apparatus according to claim 1, wherein the first and second car-side turnovers are disposed between an area where the car is vertically projected and the hoistway wall.

3. The elevator device _{c according to} claim 2, wherein the counterweight is disposed behind the car, and the driving device is disposed above one corner of a rear portion of the car.

4. At the upper part in the hoistway, a directional change pulley rotatable around a rotation axis extending along the vertical direction is arranged, and the first and second main ropes are branched by the drive sheave, The second main rope is wound around the diverting pulley. Item 3. The elevator apparatus according to Item 3.

5. In the upper part of the hoistway, a first directional change pulley rotatable around a rotation axis extending in a vertical direction is disposed, and the first and second main ropes are provided in the first direction. The first directional change pulley is wound around the directional change pulley, and is branched by the first directional change pulley. 2. The apparatus according to claim 1, wherein a second direction change bury is provided around the main rope and rotatable about a rotation axis extending in a vertical direction.

6. The elevator apparatus according to claim 1, wherein the first and second main ropes are made of synthetic fiber ropes.

7. A hoistway having a hoistway wall,

A drive, which is disposed at an upper portion in the hoistway and has a drive device main body and a drive sheave rotated by the drive device main body around a rotation axis extending in a vertical direction, is provided at an upper portion in the hoistway. A main rope having a fixed car side end and a counterweight side end, and an intermediate part wound around the drive sheave;

A first and second side surface suspended between the drive ship and the car-side end by the main rope in the hoistway and facing each other; A basket that is raised and lowered inside

The drive is suspended between the first side surface and the hoistway wall, and is suspended in the hoistway by the main rope between the drive sheave and the counterweight side end. A counterweight that is raised and lowered in the hoistway by the device,

A car reversing car that is arranged at an upper part in the hoistway and is wound around the main rope, and guides the main rope from the driving sheep to the car; and

A counterweight return wheel that is arranged at the upper part in the hoistway and is wound around the main rope, and guides the main rope from the drive ship to the counterweight.

And an elevator device equipped with The driving device is disposed above a corner on the counterweight side of the rear of the car, and the car and the counterweight return wheel are disposed between the first side surface and the hoistway wall. An elevator device located above the space.

8. The elevator according to claim 7, wherein the main rope is made of a synthetic fiber rope.