WO2015025396A1

WO2015025396A1 - Elevator device

Info

Publication number: WO2015025396A1
Application number: PCT/JP2013/072380
Authority: WO
Inventors: 啓太島林; 丸山　直之
Original assignee: 三菱電機株式会社
Priority date: 2013-08-22
Filing date: 2013-08-22
Publication date: 2015-02-26

Abstract

The present invention provides an elevator device whereby a travel space in the up/down direction of a counterbalance weight is maintained, overhead dimensions can be reduced, and pit depth can be reduced. This elevator device has: the counterbalance weight (4) arranged on the rear side in the depth direction of an elevator car (3); a hoisting machine (5) arranged above the counterbalance weight (4) at the top of a hoistway; only a weight suspension sheave (21) arranged between the hoisting machine (5) and the counterbalance weight (4); and an upper return pulley (20) arranged on the other side in the width direction of a vertical projection surface of the elevator car (3). A lower return pulley (17) has one end section in the width direction positioned in an area on the other side in the width direction between the vertical projection surface of the elevator car (3) and a vertical projection surface of the counterbalance weight (4). The other end side in the width direction protrudes to the other side in the width direction from said area.

Description

Elevator equipment

The present invention relates to an elevator apparatus, and more particularly to an elevator apparatus in which a counterweight is arranged on the rear side in the depth direction of a car.

In elevator systems, due to architectural restrictions, etc., it is required to secure the entrance dimensions of the passenger car and reduce the entrance dimensions of the hoistway. The weight drop system that places the counterweight on the rear side in the depth direction of the car can reduce the size of the frontage of the hoistway, compared with the weight drop system that places the counterweight on the side in the car mouth direction. Further, from the viewpoint of flooding countermeasures, the top arrangement of the hoistway of the hoisting machine is more effective than the pit part arrangement of the hoisting machine. However, in the case of the weight drop method, the distance between the counterweight and the car suspension becomes longer, so that the roping configuration and the arrangement of the hoisting machine and the return wheel become complicated.

In view of this situation, the hoisting machine is arranged above the counterweight, the weight-side return wheel is arranged between the hoisting machine and the counterweight, and the car-side return car is arranged on the side of the car in the front direction. In addition, there has been proposed a conventional weight drop-off type elevator apparatus (for example, see Patent Document 1).

In addition, the hoisting machine is arranged above the car, the sheave of the hoisting machine is arranged above the guide rail for the hoisting machine-side weight, and the car-side return wheel is arranged on the side of the car in the front direction. Conventionally, an elevator apparatus of a weight drop-off method has been proposed (see, for example, Patent Document 2).

JP 2003-020176 A JP 2004-189346 A

However, in the conventional elevator apparatus described in Patent Document 1, the weight-side return wheel is disposed between the hoisting machine and the counterweight. Therefore, in order to secure the traveling space in the vertical direction of the counterweight, the dimension between the top floor level and the hoistway ceiling (overhead dimension) and the dimension between the bottom floor level and the bottom of the pit (pit depth) There was a problem of increasing the size.

Moreover, in the conventional elevator apparatus described in Patent Document 2, since the hoisting machine is arranged on the upper part of the car, there is a problem that the overhead dimension becomes large. Moreover, since the sheave of the hoisting machine straddles the guide rail for the weight on the hoisting machine side in the frontage direction, there is a problem that the diameter of the sheave becomes large and the overhead dimension becomes large.

The present invention has been made to solve such a problem, and obtains an elevator apparatus that can secure a traveling space in the vertical direction of the counterweight, reduce the overhead dimension, and reduce the pit depth. For the purpose.

The elevator apparatus according to the present invention includes a pair of car suspension vehicles in which a counterweight is disposed on the rear side in the depth direction of the car and is spaced apart in the frontage direction and disposed on the upper or lower part of the car. Front end of the weight suspension vehicle disposed on the upper part of the weight, and the front end direction between the vertical projection surface of the counterweight and the vertical projection surface of the counterweight when viewed from above in the vertical direction. Located on the other side area, or the area between the vertical projection surface of the car and the vertical projection surface of the weight guide rail located on the other side of the frontage direction, and the other end side of the frontage direction extends from the area to the frontage The lower return wheel arranged with its axis aligned with the depth direction so as to protrude to the other side of the direction, and the sheave in the depth direction from the vertical projection surface of the car as viewed from above in the vertical direction. On the rear side, with the above weight suspension car The hoist placed above the counterweight at the top of the hoistway so as to be located between the lower return wheel and the hoisting machine disposed at a height higher than the lower return wheel, and viewed from above in the vertical direction, The hoistway with its axis aligned with the frontage direction so that it is located on the other side in the frontage direction of the vertical projection plane of the car and between the car suspension car on the other side of the frontage direction and the lower return wheel An upper return wheel disposed at a height higher than the lower return wheel at the top. The main rope descends with one end connected to one side in the front direction of the hoistway top, is hung over the pair of car suspension vehicles, rises from the other side in the front direction of the car, and Wrapped over the car, descended, hung over the lower return car, raised, wound around the sheave, descended, hung over the weight suspension car, raised, the other end at the top of the hoistway It is connected to.

According to the present invention, the elevator apparatus is a weight drop-off system in which a counterweight is disposed on the rear side in the depth direction of the car, and the hoisting machine is disposed above the counterweight. The dimensions can be reduced.
In addition, since the hoisting machine is disposed above the counterweight and only the hoisting wheel is disposed between the hoisting machine and the counterweight, without increasing the overhead dimension or increasing the pit depth, A traveling space in the vertical direction of the counterweight can be secured.
In addition, since the equipment for suspending the car and the counterweight is located outside the vertical projection surface of the car, it is not necessary to increase the overhead dimension or increase the pit depth.

1 is a configuration diagram illustrating an elevator apparatus according to Embodiment 1 of the present invention. It is the schematic diagram which looked at the elevator apparatus which concerns on Embodiment 1 of this invention from upper direction. It is a principal part side view which shows the hoistway pit part of the elevator apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the elevator apparatus which concerns on Embodiment 2 of this invention. It is the schematic diagram which looked at the elevator apparatus which concerns on Embodiment 2 of this invention from upper direction. It is a principal part side view which shows the hoistway top part of the elevator apparatus which concerns on Embodiment 2 of this invention. It is a block diagram which shows the elevator apparatus which concerns on Embodiment 3 of this invention. It is the schematic diagram which looked at the elevator apparatus which concerns on Embodiment 3 of this invention from upper direction. It is a principal part side view which shows the hoistway pit part of the elevator apparatus which concerns on Embodiment 3 of this invention. It is a principal part side view which shows the hoistway top part of the elevator apparatus which concerns on Embodiment 3 of this invention. It is the schematic diagram which looked at the elevator apparatus which concerns on Embodiment 4 of this invention from upper direction. It is the schematic diagram which looked at the elevator apparatus which concerns on Embodiment 5 of this invention from upper direction. It is the schematic diagram which looked at the principal part of the elevator apparatus which concerns on Embodiment 6 of this invention from the upper direction. It is the schematic diagram which looked at the principal part of the elevator apparatus which concerns on Embodiment 7 of this invention from the upper direction.

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

Embodiment 1 FIG.
1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a schematic view of the elevator apparatus according to Embodiment 1 of the present invention as viewed from above, and FIG. 3 is an embodiment of the present invention. It is a principal part side view which shows the hoistway pit part of the elevator apparatus which concerns on 1. FIG.

1 to 3, the elevator apparatus is disposed on the rear side in the depth direction of the car 3 disposed in the hoistway 1 with the doorway facing the landing 2 and the car 3 in the hoistway 1. The counterweight 4 and the winding machine 5 are provided. Here, the width direction of the entrance / exit of the landing 2 is defined as the frontage direction, and the horizontal direction orthogonal to the frontage direction is defined as the depth direction.

A pair of car guide rails 7a and 7b are supported by rail brackets (not shown) fixed at regular intervals in the vertical direction on both side walls in the frontage direction of the hoistway 1 and spaced apart in the frontage direction. Are arranged so as to extend in the vertical direction. The car 3 is guided by the pair of car guide rails 7a and 7b and is movable in the vertical direction.

A pair of

weight guide rails

9a and 9b is supported by rail brackets (not shown) fixed at regular intervals in the vertical direction on both side walls in the frontage direction of the hoistway 1, respectively. On the rear side in the depth direction of the rails 7a and 7b, the rails 7a and 7b are disposed so as to be spaced apart in the frontage direction and extend in the vertical direction. The counterweight 4 is guided by the pair of

weight guide rails

9a and 9b and can move in the vertical direction.

The hoisting machine 5 is attached to a hoisting machine support beam 11 that is installed between upper ends of the pair of

weight guide rails

9a and 9b and extends in the frontage direction. The hoisting machine 5 makes the shaft 6a of the sheave 6 coincide with the depth direction so that the sheave 6 is balanced with the vertical projection surface of the car 3 when viewed from above in the vertical direction. It is arrange | positioned in the upper part of the counterweight 4 of the hoistway top part 1a so that it may be located in between. The vertical projection plane of the car 3 is a space occupied by the car 3 when the car 3 is viewed from above in the vertical direction. The vertical projection plane of the counterweight 4 is a space occupied by the counterweight 4 when the counterweight 4 is viewed from above in the vertical direction.

The pair of

car suspension vehicles

12a and 12b are respectively adjusted so as to suspend the substantially center of gravity of the car 3 when viewed from above in the vertical direction, and a pair of

car guide rails

7a and 12b are provided below the car 3. 7b is spaced apart in the opposite direction, that is, the frontage direction.

The car shock absorber stand 13 is fixed to the floor surface of the hoistway pit portion 1b and arranged to extend in the frontage direction. The lower ends of the pair of car guide rails 7 a and 7 b are fixed to both ends of the car shock absorber base 13. The car shock absorber 14 is fixed to the central portion in the length direction of the car shock absorber base 13.

The weight shock absorber table 15 is fixed to the floor surface of the hoistway pit portion 1b and is disposed on the rear side in the depth direction of the car shock absorber table 13 so as to extend in the frontage direction. The lower end portions of the pair of

weight guide rails

9 a and 9 b are fixed to both end portions of the weight buffer base 15. The weight buffer 16 is fixed to the center of the weight buffer base 15 in the length direction.

The lower return wheel 17 is attached to a lower return wheel support beam (not shown) fixed to the floor surface of the hoistway pit portion 1b via a suspension plate 18a so as to be rotatable around a shaft 17a that coincides with the depth direction. It has been. When viewed from above in the vertical direction, the lower curling wheel 17 is positioned in a region on the other side in the frontage direction between one end portion in the frontage direction and the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4. The other end side in the frontage direction protrudes from the region to the other side in the frontage direction.

An upper side anti-car support beam 19 is provided on the hoistway top 1a so as to extend between the upper end side of the car guide rail 7b on the other side in the frontage direction and the hoisting machine support beam 11 and extend in the depth direction. Yes. The upper warping wheel 20 has the shaft 20a aligned with the frontage direction, and is located on the other side in the frontage direction of the vertical projection surface of the car 3 between the car suspension car 12b and the lower warping car 17, Attached to the vehicle support beam 19 and disposed on the hoistway top 1a. At this time, when viewed from vertically above, the front end portion in the depth direction of the upper return wheel 20 is close to the end portion of the car suspension vehicle 12b that protrudes to the other side in the front opening direction of the vertical projection surface of the car 3. Yes.

The weight suspension wheel 21 is disposed on the upper portion of the counterweight 4 with its axis inclined with respect to the depth direction so as to suspend the substantially center of gravity position of the counterweight 4 when viewed from above in the vertical direction. At this time, when viewed from vertically above, the end portion on the other side in the frontage direction of the weight suspension wheel 21 is close to the end portion on one side in the frontage direction of the sheave 6.

Next, roping will be described. First, the hoisting rope 22 as a main rope is constructed between the upper end side of the car guide rail 7a on one side of the frontage direction and the hoisting machine support beam 11 so that one end of the hoisting rope 22 extends in the depth direction. It is connected with a basket cage stop 24. The hoisting rope 22 lowered from the car rope stopping portion 24 is spanned from one side in the front direction of the car 3 to the pair of

car suspension vehicles

12a and 12b, and is pulled down from the other side in the front direction of the car 3. Then, the hoisting rope 22 pulled up from the other side in the front direction of the car 3 is hung from the front side in the depth direction to the upper return wheel 20 and lowered from the rear side in the depth direction of the upper return wheel 20.

Then, the hoisting rope 22 lowered from the rear side in the depth direction of the upper return wheel 20 is hung from the other side in the frontage direction to the lower return wheel 17 and pulled up from one side in the frontage direction of the lower return wheel 17. And the hoisting rope 22 pulled up from one side in the front direction of the lower return wheel 17 is wound around the sheave 6 a plurality of times from the other side in the front direction and then lowered from one side in the front direction of the sheave 6. . And the hoisting rope 22 lowered from one side of the frontage direction of the sheave 6 is hung from the other side of the frontage direction to the weight suspension vehicle 21 and pulled up from one side of the frontage direction of the weight suspension vehicle 21. The end is connected to the hoisting machine support beam 11 by a weight rope stop 25.

According to the first embodiment, the elevator apparatus is a weight drop-off system in which the counterweight 4 is disposed on the rear side in the depth direction of the car 3, and the hoisting machine 5 is disposed above the counterweight 4. Therefore, the frontage dimension of the hoistway 1 can be reduced.

The hoisting machine 5 is disposed above the counterweight 4, and only the weight hoisting wheel 21 is disposed between the hoisting machine 5 and the counterweight 4. Therefore, the vertical traveling space of the counterweight 4 can be secured without increasing the overhead dimension or increasing the pit depth.

Since the hoisting machine 5, the lower return wheel 17 and the upper return wheel 20 which are devices for suspending the car and the counterweight are located outside the vertical projection surface of the car 3, the overhead size is increased or the pit depth is increased. There is no need to go deep.

The lower return wheel 17 has an axial direction coincident with the depth direction, and when viewed from above in the vertical direction, one end portion in the frontage direction is between the vertical projection surface of the car 3 and the vertical projection surface of the weight 4. It is located in the area | region of the other side of a frontage direction, and the other end side of a frontage direction protrudes in the other side of a frontage direction from the said area | region. Therefore, when the car 3 is pushed down, it is possible to avoid interference between the lower return wheel 17 and the equipment under the car.

Further, the front end portion in the depth direction of the upper return wheel 20 is close to the end portion of the car suspension vehicle 12b that protrudes to the other side in the front-end direction of the vertical projection surface of the car 3 when viewed from vertically above. . Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 traveling between the upper return wheel 20 and the car suspension wheel 12b is reduced, the thrust load acting on the bearings of the upper return wheel 20 and the car suspension wheel 12b is reduced. The wear of the hoisting rope 22 is reduced.

Further, the other end of the weight suspension wheel 21 in the frontage direction is close to one end of the sheave 6 in the frontage direction when viewed from above in the vertical direction. Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 traveling between the weight suspension wheel 21 and the sheave 6 is reduced, the thrust load acting on the bearings of the weight hoisting wheel 21 and the sheave 6 is reduced and the hoisting wheel 22 is hoisted. Wear of the rope 22 is reduced.

Further, since the sheave 6 of the hoisting machine 5 is located between the vertical projection plane of the car 3 and the vertical projection plane of the counterweight 4 when viewed from above in the vertical direction, the sheave 6 has an overhead dimension. Does not affect the pit dimensions. Therefore, the degree of freedom in designing the diameter of the sheave 6 is increased.

In the first embodiment, the sheave of the hoisting machine is disposed with the shaft aligned in the depth direction, and the weight suspension is disposed with the shaft inclined with respect to the depth direction and horizontal. However, the sheave of the hoisting machine may be disposed with the shaft inclined with respect to the depth direction and horizontal, and the weight suspension wheel may be disposed with the shaft aligned with the depth direction.

In Embodiment 1 described above, the opposing direction of the pair of car suspension cars is parallel to the opposing direction of the pair of car guide rails. However, the opposing direction of the pair of car suspension cars is determined by As long as it is hung at a substantially center of gravity position, it may be inclined with respect to the opposing direction of the pair of car guide rails.

Embodiment 2. FIG.
4 is a block diagram showing an elevator apparatus according to Embodiment 2 of the present invention, FIG. 5 is a schematic view of the elevator apparatus according to Embodiment 2 of the present invention as viewed from above, and FIG. 6 is an embodiment of the present invention. It is a principal part side view which shows the hoistway top part of the elevator apparatus which concerns on 2. FIG.

4 to 6, the

upper counter wheels

20A and 20B have the shaft 20a aligned with the frontage direction, and viewed from above in the vertical direction, on the other side in the frontage direction of the vertical projection surface of the car 3, and the car Arranged in the depth direction on the rear side of the suspension vehicle 12b in the depth direction, is attached to the upper support car support beam 19 and disposed on the hoistway top portion 1a.

The lower return wheel support beam 26 is fixed to the hoisting machine support beam 11 at one end and suspended, and is disposed on the hoistway top 1a. The lower curving wheel 17 has a shaft 17a in the depth direction, and when viewed from above in the vertical direction, one end in the frontage direction is in the frontage direction between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4. It is located in the other side region, and is rotatably attached to the lower return wheel support beam 26 so that the other end side in the frontage direction protrudes from the region to the other side in the frontage direction.

At this time, when viewed from above in the vertical direction, the end on the other side in the front direction of the lower return wheel 17 is adjacent to the rear end in the depth direction of the upper return wheel 20B, and the depth direction of the upper return wheel 20A. The front end of the car is close to the other end of the car suspension wheel 12b in the frontage direction, and the other end of the weight suspension car 21 in the frontage direction is one end of the sheave 6 in the frontage direction. Close to the department. The lower return wheel 17 is disposed at a lower position than the sheave 6 and the

upper return wheels

20A, 20B of the hoistway top 1a.
Other configurations are the same as those in the first embodiment.

Next, roping will be described. First, the hoisting rope 22 is installed between the upper end side of the car guide rail 7a on one side in the frontage direction and the hoisting machine support beam 11 and is connected to the car leash support beam 23 extending in the depth direction. The parts 24 are connected. The hoisting rope 22 lowered from the car rope stopping portion 24 is spanned from one side in the front direction of the car 3 to the pair of

car suspension vehicles

12a and 12b, and is pulled down from the other side in the front direction of the car 3. And the hoisting rope 22 pulled up from the other side of the front direction of the car 3 is hung from the front side in the depth direction to the

upper return wheels

20A and 20B, and is lowered from the rear side in the depth direction of the upper return wheel 20B.

Then, the hoisting rope 22 lowered from the rear side in the depth direction of the upper return wheel 20B is hung from the other side in the frontage direction to the lower return wheel 17 and pulled up from one side in the frontage direction of the lower return wheel 17. And the hoisting rope 22 pulled up from one side in the front direction of the lower return wheel 17 is wound around the sheave 6 a plurality of times from the other side in the front direction and then lowered from one side in the front direction of the sheave 6. . And the hoisting rope 22 lowered from one side of the frontage direction of the sheave 6 is hung from the other side of the frontage direction to the weight suspension vehicle 21 and pulled up from one side of the frontage direction of the weight suspension vehicle 21. The end is connected to the hoisting machine support beam 11 by a weight rope stop 25.

In the second embodiment, the counterweight 4 is arranged on the rear side of the car 3 in the depth direction. Only the weight suspension wheel 21 is disposed between the hoist 5 and the counterweight 4. The

upper return wheels

20A and 20B are disposed on the other side in the frontage direction of the vertical projection plane of the car 3 when viewed from above in the vertical direction. One end of the lower return wheel 17 in the front direction is disposed between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 when viewed from above in the vertical direction. Therefore, the second embodiment also has the same effect as the first embodiment.

According to the second embodiment, since the equipment for suspending the passenger car 3 and the counterweight 4 is concentrated on the hoistway top 1a, the empty space in the hoistway pit 1b is widened, and the car shock absorber 14 and the weight are increased. Installation of the shock absorber 16 is facilitated.
Although the horizontal distance between the car suspension wheel 12b and the lower return wheel 17 is longer, the upper return wheel is configured by arranging the

upper return wheels

20A and 20B in a line in the depth direction. The enlargement of the

return wheels

20A and 20B can be suppressed.

The other end of the lower return wheel 17 in the front direction is close to the rear end of the upper return wheel 20B in the depth direction when viewed from above in the vertical direction. Therefore, the angle with respect to the vertical direction of the hoisting rope 22 that travels between the lower return wheel 17 and the upper return wheel 20B is reduced, so that the thrust load acting on the bearings of the lower return wheel 17 and the upper return wheel 20B is reduced. The wear of the hoisting rope 22 is reduced.

Further, the front end portion in the depth direction of the upper return wheel 20A is close to the other end portion in the front end direction of the car suspension vehicle 12b when viewed from vertically above. Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 that travels between the upper return wheel 20A and the car suspension wheel 12b is reduced, the thrust load acting on the bearings of the upper return wheel 20A and the car suspension wheel 12b is reduced. The wear of the hoisting rope 22 is reduced.

Embodiment 3 FIG.
7 is a block diagram showing an elevator apparatus according to Embodiment 3 of the present invention, FIG. 8 is a schematic view of the elevator apparatus according to Embodiment 3 of the present invention as viewed from above, and FIG. 9 is an embodiment of the present invention. FIG. 10 is a side view of an essential part showing a hoistway top part of an elevator apparatus according to Embodiment 3 of the present invention.

7 to 10, the upper counterwheel 20 </ b> A has the shaft 20 a aligned with the frontage direction, and the car suspension vehicle on the other side in the frontage direction of the vertical projection surface of the car 3 when viewed from above in the vertical direction. At the rear side of 12b in the depth direction, it is attached to the upper support car support beam 19 and disposed on the hoistway top 1a.

The lower return wheel 17 is rotatably attached to the lower return wheel support beam 18 fixed to the floor surface of the hoistway pit portion 1b via the suspension plate 18a with the shaft 17a aligned with the frontage direction. It is disposed in the road pit portion 1b. The lower curling wheel 17 is disposed on the other side in the front direction of the vertical projection plane of the car 3 and on the rear side in the depth direction of the upper return wheel 20A when viewed from above in the vertical direction.

Solase wheel 27 is rotatably attached to lower return wheel support beam 26 with shaft 27a in the depth direction, and is disposed on hoistway top 1a. As seen from above in the vertical direction, the wheel 37 is located in a region on the other side in the front direction between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 at one end in the front direction. The other end side in the frontage direction is disposed so as to protrude from the region to the other side in the frontage direction.

At this time, when viewed from above in the vertical direction, the rear end portion in the depth direction of the lower return wheel 17 is close to the other end portion in the front direction of the sorase wheel 27, and the depth direction of the upper return wheel 20A. The end on the front side is close to the end on the other side in the frontage direction of the car suspension wheel 12b, and the end on the other side in the frontage direction on the weight suspension wheel 21 is the end on the one side in the frontage direction on the sheave 6 Is close to. Further, the wheel 37 is disposed at a lower position than the sheave 6.
Other configurations are the same as those in the first embodiment.

car suspension vehicles

12a and 12b, and is pulled down from the other side in the front direction of the car 3. The hoisting rope 22 pulled up from the other side in the front direction of the car 3 is hung from the front side in the depth direction to the upper return wheel 20A and lowered from the rear side in the depth direction of the upper return wheel 20A.

Then, the hoisting rope 22 lowered from the rear side in the depth direction of the upper return wheel 20A is hung from the front side in the depth direction to the lower return wheel 17 and pulled up from the rear side in the depth direction of the lower return wheel 17. Then, the hoisting rope 22 pulled up from the rear side in the depth direction of the lower return wheel 17 is hung from the other side in the frontage direction to the sorase wheel 27, and its trajectory is changed and raised. The hoisting rope 22 whose trajectory has been changed is wound around the sheave 6 a plurality of times and then lowered from one side of the sheave 6 in the frontage direction. And the hoisting rope 22 lowered from one side of the frontage direction of the sheave 6 is hung from the other side of the frontage direction to the weight suspension vehicle 21 and pulled up from one side of the frontage direction of the weight suspension vehicle 21. The end is connected to the hoisting machine support beam 11 by a weight rope stop 25.

In the third embodiment, the counterweight 4 is arranged on the rear side of the car 3 in the depth direction. Only the weight suspension wheel 21 is disposed between the hoist 5 and the counterweight 4. The upper return wheel 20A and the lower return wheel 17 are disposed on the other side in the frontage direction of the vertical projection plane of the car 3 when viewed from above in the vertical direction. A solar wheel 27 is disposed between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 when viewed from above in the vertical direction. Therefore, the third embodiment also has the same effect as the first embodiment.

According to the third embodiment, the lower return wheel 17 is arranged on the other side in the frontage direction of the vertical projection surface of the car 3 when viewed from above in the vertical direction. The wheel 27 is disposed on the hoistway top 1a so as to be positioned between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 when viewed from above in the vertical direction. Therefore, the trajectory of the hoisting rope 22 between the lower return wheel 17 and the sorase wheel 27 deviates from the region between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 to the other side in the frontage direction. Therefore, without increasing the space between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4, the steadying of the hoisting rope 22 can be installed, and the size expansion of the hoistway 1 in the depth direction can be suppressed.

The rear end of the lower return wheel 17 in the depth direction is close to the other end of the front wheel 27 in the front direction as viewed from above in the vertical direction. Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 traveling between the lower return wheel 17 and the wheel 37 is reduced, the thrust load acting on the bearings of the lower wheel 17 and the wheel 27 is reduced, and the hoisting wheel 22 is wound up. Wear of the rope 22 is reduced.

Embodiment 4 FIG.
FIG. 11 is a schematic view of an elevator apparatus according to Embodiment 4 of the present invention as viewed from above.

In FIG. 11, the hoisting machine 5 has the sheave 6 directed toward the vertical projection surface of the car 3, the shaft 6 a is aligned with the frontage direction, and the vertical projection surface of the car 3 is viewed from above in the vertical direction. It arrange | positions at the hoistway top part 1a so that it may be located in the other side of a frontage direction, and the rear side of the depth direction of the car suspension vehicle 12b.

The lower return wheel 17 has a shaft 17a aligned with the depth direction, and when viewed from above in the vertical direction, one end portion in the frontage direction is between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4. The hoistway pit portion 1b is disposed in a region on the other side in the frontage direction so that the other end side in the frontage direction protrudes from the region to the other side in the frontage direction.

The upper return wheel 20 is weighted with the lower return wheel 17 between the vertical projection surface of the counterweight 3 and the vertical projection surface of the counterweight 4 as seen from above in the vertical direction with the shaft 20a aligned with the depth direction. It arrange | positions at the hoistway top part 1a so that it may be located between the suspension vehicles 21. FIG.

At this time, when viewed from above in the vertical direction, the front end portion in the depth direction of the sheave 6 is close to the other end portion in the front end direction of the car suspension wheel 12b, and the other end portion in the front end direction of the weight suspension wheel 21. The end on the side is close to the end on one side in the front direction of the upper return wheel 20.
Other configurations are the same as those in the first embodiment.

car suspension vehicles

12a and 12b, and is pulled down from the other side in the front direction of the car 3. Then, the hoisting rope 22 pulled up from the other side in the front direction of the car 3 is wound around the sheave 6 a plurality of times from the front side in the depth direction and then lowered from the rear side in the depth direction of the sheave 6.

And the hoisting rope 22 lowered from the rear side in the depth direction of the sheave 6 is hung from the other side in the frontage direction to the lower return wheel 17 and pulled up from one side in the frontage direction of the lower return wheel 17. Then, the hoisting rope 22 pulled up from one side in the front direction of the lower return wheel 17 is passed over the upper return wheel 20 from the other side in the front direction and lowered from one side in the front direction of the upper return wheel 20. And the hoisting rope 22 lowered from one side of the frontage direction of the sheave 6 is hung from the other side of the frontage direction to the weight suspension vehicle 21 and pulled up from one side of the frontage direction of the weight suspension vehicle 21. The end is connected to the hoisting machine support beam 11 by a weight rope stop 25.

In the fourth embodiment, the counterweight 4 is disposed on the rear side of the car 3 in the depth direction. Only the weight suspension wheel 21 is arranged on the upper part of the counterweight 4. The hoisting machine 5, the lower return wheel 17, and the upper return wheel 20 are disposed outside the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4. Therefore, the fourth embodiment also has the same effect as the first embodiment.

According to the fourth embodiment, the upper return wheel 20 is disposed above the weight suspension wheel 21. Since the upper return wheel 20 is smaller in height than the hoisting machine 5, the vertical travel space of the counterweight 4 can be made equivalent to that of the first embodiment, and the height of the counterweight 4 can be increased. it can. That is, it is possible to increase the weight for loading the weight without reducing the vertical traveling space of the counterweight 4.

Also, the front end in the depth direction of the sheave 6 is close to the other end in the front direction of the car suspension wheel 12b when viewed from vertically above. Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 traveling between the sheave 6 and the car suspension wheel 12b is reduced, the thrust load acting on the bearings of the sheave 6 and the car suspension wheel 12b is reduced and the hoisting rope 22 is wound up. Wear of the rope 22 is reduced.

Further, the end on the other side in the frontage direction of the weight suspension vehicle 21 is close to the end on the one side in the frontage direction of the upper return wheel 20 when viewed from above in the vertical direction. Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 that travels between the weight suspension wheel 21 and the upper return wheel 20 is reduced, the thrust load acting on the bearings of the weight suspension wheel 21 and the upper return wheel 20 is reduced. The wear of the hoisting rope 22 is reduced.

Embodiment 5 FIG.
FIG. 12 is a schematic view of an elevator apparatus according to Embodiment 5 of the present invention as viewed from above.

In FIG. 12, the hoisting machine 5 has the sheave 6 directed toward the vertical projection surface of the car 3, the shaft 6 a is aligned with the frontage direction, and the vertical projection surface of the car 3 is viewed from above in the vertical direction. It arrange | positions at the hoistway top part 1a so that it may be located in the other side of a frontage direction, and the rear side of the depth direction of the car suspension vehicle 12b.

The lower return wheel 17 has the shaft 17a aligned with the frontage direction and is seen from above in the vertical direction on the other side in the frontage direction of the vertical projection surface of the car 3 and on the rear side in the depth direction of the sheave 6. It arrange | positions in the hoistway pit part 1b so that it may be located.
The wheel 27 is disposed on the hoistway top 1a with the shaft 27a in the depth direction. As seen from above in the vertical direction, the wheel 37 is located in a region on the other side in the front direction between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 at one end in the front direction. The other end side in the frontage direction is disposed so as to protrude from the region to the other side in the frontage direction.

The upper return wheel 20 has a shaft 20a aligned with the depth direction, and is suspended from the solar wheel 27 between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 when viewed from above in the vertical direction. It arrange | positions at the hoistway top part 1a so that it may be located between the vehicles 21.

At this time, when viewed from above in the vertical direction, the front end in the depth direction of the sheave 6 is close to the other end in the front direction of the car suspension wheel 12b, and the rear of the lower return wheel 17 in the depth direction. The end on the side is close to the end on the other side of the front wheel 27, and the other end on the front of the weight hanging wheel 21 is the end on the one side in the front of the upper return wheel 20. Is close to.
Other configurations are the same as those in the first embodiment.

car suspension vehicles

And the hoisting rope 22 lowered from the rear side in the depth direction of the sheave 6 is hung from the other side in the frontage direction to the lower return wheel 17 and pulled up from one side in the frontage direction of the lower return wheel 17. Then, the hoisting rope 22 pulled up from one side in the front direction of the lower return wheel 17 is hung from the other side in the front direction to the wheel 27, and the trajectory is changed. Then, the hoisting rope 22 whose trajectory has been changed is stretched over the upper return wheel 20 from the other side in the frontage direction and lowered from one side in the frontage direction of the upper return wheel 20. The hoisting rope 22 lowered from one side in the frontage direction of the upper return wheel 20 is hung from the other side in the frontage direction to the weight suspension car 21, lifted from one side in the frontage direction of the weight suspension car 21, and the other end. Is connected to the hoisting machine support beam 11 by a weight rope stop 25.

In the fifth embodiment, the counterweight 4 is arranged on the rear side of the car 3 in the depth direction. Only the weight suspension wheel 21 is arranged on the upper part of the counterweight 4. The hoisting machine 5, the lower return wheel 17, the ramp wheel 27, and the upper return wheel 20 are disposed outside the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4. Therefore, the fifth embodiment has the same effect as the first embodiment.

According to the fifth embodiment, the lower return wheel 17 is disposed on the other side in the frontage direction of the vertical projection surface of the car 3 when viewed from above in the vertical direction. The wheel 27 is disposed on the hoistway top 1a so as to be positioned between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 when viewed from above in the vertical direction. Therefore, the trajectory of the hoisting rope 22 between the lower return wheel 17 and the sorase wheel 27 deviates from the region between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4 to the other side in the frontage direction. Therefore, without increasing the space between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4, the steadying of the hoisting rope 22 can be installed, and the size expansion of the hoistway 1 in the depth direction can be suppressed.

In addition, since the upper return wheel 20 is disposed above the weight suspension wheel 21, the weight of the weight can be increased without reducing the vertical traveling space of the counterweight 4.

Further, the rear end portion in the depth direction of the lower return wheel 17 is close to the other end portion in the front direction of the sorase wheel 27 as viewed from vertically above. Therefore, since the angle with respect to the vertical direction of the hoisting rope 22 traveling between the lower return wheel 17 and the wheel 37 is reduced, the thrust load acting on the bearings of the lower wheel 17 and the wheel 27 is reduced, and the hoisting wheel 22 is wound up. Wear of the rope 22 is reduced.

Embodiment 6 FIG.
FIG. 13 is a schematic view of the main part of an elevator apparatus according to Embodiment 6 of the present invention viewed from above.

In FIG. 13, the counterweight 4 </ b> A has a stepped portion 28 formed by denting the front wall surface in the depth direction on the other side in the frontage direction to the rear side in the depth direction. Then, the lower return wheel 17 aligns the shaft 17a in the depth direction, and when viewed from vertically above, one end side in the front direction is balanced with the vertical projection surface of the car 3 and the step portion 28 of the vertical projection surface of the weight 4A. Is disposed in the hoistway pit portion 1b. As seen from above in the vertical direction, the hoisting machine 6 has a portion of the sheave 6 protruding between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4A. It is arrange | positioned at the upper part of the counterweight 4A of the hoistway top part 1a so that it may be located between the weight suspension vehicles 21.
Other configurations are the same as those in the first embodiment.

According to the sixth embodiment, the counterweight 4A has the step portion 28 formed by denting the front wall surface in the depth direction on the other side in the frontage direction to the rear side in the depth direction. Then, the lower return wheel 17 aligns the shaft 17a in the depth direction, and when viewed from vertically above, one end side in the front direction is balanced with the vertical projection surface of the car 3 and the step portion 28 of the vertical projection surface of the weight 4A. It is located between. Therefore, when viewed from above, the dead space between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4A can be reduced, and the depth dimension of the hoistway 1 can be reduced.

In the sixth embodiment, the step portion 28 is formed on the counterweight 4 in the first embodiment. However, the step portion 28 may be formed on the counterweight 4 in the second to fifth embodiments. . In this case, one end of the front wheel or lower return wheel in the front direction is positioned between the vertical projection surface of the car 3 and the stepped portion 28 of the counterweight 4A.

Embodiment 7 FIG.
FIG. 14 is a schematic view of the main part of an elevator apparatus according to Embodiment 7 of the present invention viewed from above.

In FIG. 14, the lower return wheel 17 has a shaft 17 a aligned with the depth direction, and when viewed from vertically above, one end side in the front direction is the vertical projection surface of the car 3 and the weight guide on the other side in the front direction. It arrange | positions in the hoistway pit part 1b so that it may be located between the vertical projection surfaces of the rail 9b. When the hoisting machine 5 is viewed from above in the vertical direction, the sheave 6 projects a part between the vertical projection surface of the car 3 and the vertical projection surface of the counterweight 4, The weight guide rail 9b of the hoistway top 1a and the counterweight 4 are disposed on the other side in the front direction so as to be positioned between the weight suspension wheel 21 and the weight suspension wheel 21.
Other configurations are the same as those in the first embodiment.

According to the seventh embodiment, the lower return wheel 17 has the shaft 17a aligned with the depth direction, and when viewed from vertically above, the vertical projection surface of the car 3 and the weight guide rail at one end in the front direction. It is located between the vertical projection plane 9b. Therefore, since the width of the weight guide rail 9b in the depth direction is narrower than the width of the counterweight 4 in the depth direction, the vertical guide plane of the car 3 and the vertical projection plane of the counterweight 4 are viewed from above. The dead space can be reduced, and the depth dimension of the hoistway 1 can be reduced.

In the seventh embodiment, the vertical projection surface of the car 3 and the guide rail for the weight are viewed from the upper end in the front direction in the front direction of the lower return wheel 17 in the first embodiment. 9b is positioned between the vertical projection plane, and in the second to seventh embodiments, the car is viewed from the upper end in the vertical direction when viewed from the top in the front direction of the sorase wheel or lower return wheel. 3 may be positioned between the vertical projection plane 3 and the vertical projection plane of the weight guide rail 9b.

Moreover, in each said embodiment, although the winding rope is used as a main rope, a main rope is not limited to a winding rope, You may use a flat belt.
In each of the above embodiments, an underslang elevator device in which a car suspension car is attached to the lower part of the car is described. However, the present invention is applied to an overslang elevator apparatus in which a car suspension car is attached to the upper part of the car. However, the same effect can be obtained.

Claims

An elevator apparatus in which a counterweight is arranged on the rear side in the depth direction of the car,
A pair of car suspension vehicles disposed in the upper or lower portion of the car separated from the frontage direction;
A weight suspension vehicle disposed above the counterweight;
When viewed from above in the vertical direction, one end of the frontage direction is a region on the other side of the frontage direction between the vertical projection surface of the car and the vertical projection surface of the counterweight, or vertical projection of the car The depth of the shaft is such that the other end in the frontage direction projects from the area to the other side in the frontage direction, located in the area between the surface and the vertical projection surface of the weight guide rail located on the other side in the frontage direction. A lower return wheel arranged in accordance with the direction;
As seen from above in the vertical direction, the sheave is located behind the vertical projection surface of the car in the depth direction, between the weight suspension car and the lower return car, so that the top of the hoistway is above. A hoisting machine disposed above the counterweight at a height higher than the lower return wheel;
When viewed from above in the vertical direction, the shaft is positioned on the other side in the front direction of the vertical projection surface of the car so that it is positioned between the car suspension car on the other side in the front direction and the lower return wheel. An upper return wheel disposed in a higher position than the lower return wheel at the top of the hoistway in accordance with the direction,
The main rope descends with one end connected to one side in the front direction of the hoistway top, is hung over the pair of car suspension vehicles, rises from the other side in the front direction of the car, and Wrapped over the car, descended, hung over the lower return car, raised, wound around the sheave, descended, hung over the weight suspension car, raised, the other end at the top of the hoistway It is connected with the elevator apparatus characterized by the above-mentioned.
An elevator apparatus in which a counterweight is arranged on the rear side in the depth direction of the car,
A pair of car suspension vehicles disposed in the upper or lower portion of the car separated from the frontage direction;
A weight suspension vehicle disposed above the counterweight;
When viewed from above in the vertical direction, one end of the frontage direction is a region on the other side of the frontage direction between the vertical projection surface of the car and the vertical projection surface of the counterweight, or vertical projection of the car The depth of the shaft is such that the other end in the frontage direction projects from the area to the other side in the frontage direction, located in the area between the surface and the vertical projection surface of the weight guide rail located on the other side in the frontage direction. A solar car arranged to match the direction,
The balance at the top of the hoistway is such that the sheave is located behind the vertical projection surface of the car in the depth direction and between the weight suspension car and the solar car as viewed from above in the vertical direction. A hoisting machine disposed above the weight at a height higher than the Solace wheel,
When viewed from above in the vertical direction, the shaft should be in the front direction so that it is located on the other side of the front direction of the vertical projection surface of the car and on the rear side in the depth direction of the car suspension on the other side of the front direction. An upper return wheel disposed at a height position higher than the Solace wheel at the top of the hoistway,
When viewed from above in the vertical direction, the wheel is aligned with the front direction so that it is located on the other side in the front direction of the vertical projection plane of the car and on the rear side in the depth direction of the upper return wheel. A lower return wheel disposed at a lower height position,
The main rope descends with one end connected to one side in the front direction of the hoistway top, is hung over the pair of car suspension vehicles, rises from the other side in the front direction of the car, and Wrapped over the car and lowered, hung over the lower return car and lifted, hung over the sorase wheel, changed the trajectory of the main rope and lifted, wound around the sheave and lowered An elevator apparatus, wherein the elevator apparatus is lifted by being hung over the weight suspension wheel, and the other end is connected to the hoistway top.
An elevator apparatus in which a counterweight is arranged on the rear side in the depth direction of the car,
A pair of car suspension vehicles disposed in the upper or lower portion of the car separated from the frontage direction;
A weight suspension vehicle disposed above the counterweight;
When viewed from above in the vertical direction, one end of the frontage direction is a region on the other side of the frontage direction between the vertical projection surface of the car and the vertical projection surface of the counterweight, or vertical projection of the car The depth of the shaft is such that the other end in the frontage direction projects from the area to the other side in the frontage direction, located in the area between the surface and the vertical projection surface of the weight guide rail located on the other side in the frontage direction. A lower return wheel arranged in accordance with the direction;
From the lower return wheel at the top of the hoistway so that it is located between the weight suspension wheel and the lower return wheel on the rear side in the depth direction of the vertical projection surface of the car as viewed from above in the vertical direction An upper return wheel arranged at a high height,
When viewed from above in the vertical direction, the sheave is directed to the vertical projection surface of the car on the other side in the front direction of the vertical projection surface of the car, and the car suspension vehicle and the lower side on the other side of the front direction A hoisting machine disposed at a height position higher than the lower return wheel at the top of the hoistway so as to be positioned between the return wheel and the shaft in the frontage direction,
The main rope descends with one end connected to one side in the front direction of the hoistway top, is suspended over the pair of car suspension cars and rises from the other side in the front direction of the car, and the sheave Wrapped around the lower return wheel, lifted up, passed over the upper return wheel, lowered, passed over the weight suspension car and raised, the other end of the hoistway top It is connected with the elevator apparatus characterized by the above-mentioned.
An elevator apparatus in which a counterweight is arranged on the rear side in the depth direction of the car,
A pair of car suspension vehicles disposed in the upper or lower portion of the car separated from the frontage direction;
A weight suspension vehicle disposed above the counterweight;
When viewed from above in the vertical direction, one end of the frontage direction is a region on the other side of the frontage direction between the vertical projection surface of the car and the vertical projection surface of the counterweight, or vertical projection of the car The depth of the shaft is such that the other end in the frontage direction projects from the area to the other side in the frontage direction, located in the area between the surface and the vertical projection surface of the weight guide rail located on the other side in the frontage direction. A solar car arranged to match the direction,
When viewed from above in the vertical direction, the height of the top of the hoistway is higher than the high-speed vehicle so as to be located between the weight suspension vehicle and the high-speed vehicle behind the vertical projection plane of the car. An upper return wheel arranged at the position;
When viewed from above in the vertical direction, the sheave is directed to the vertical projection surface of the car on the other side of the vertical projection surface of the car, and the depth direction of the car suspension on the other side of the front direction A hoisting machine disposed at a height position higher than the solace wheel at the top of the hoistway, with the axis aligned with the frontage direction so as to be located on the rear side;
When viewed from above in the vertical direction, the shaft is aligned with the frontage direction so that it is located on the other side in the frontage direction of the vertical projection surface of the car and on the rear side in the depth direction of the hoisting machine. A lower return wheel disposed at a low height position,
The main rope descends with one end connected to one side in the front direction of the hoistway top, is suspended over the pair of car suspension vehicles and rises from the other side in the front direction of the car, and the upper rope Wrapped around a car, descended, passed over the lower return car, lifted, passed over the Sorase car, raised by changing the trajectory of the main rope, passed over the upper return car, lowered An elevator apparatus, wherein the elevator apparatus is lifted over the weight suspension wheel and is connected to the hoistway top at the other end.
The elevator apparatus according to any one of claims 1 to 4, wherein the lower return wheel is disposed in a hoistway pit portion.
The elevator apparatus according to any one of claims 1 to 4, wherein the lower return wheel is disposed at the top of the hoistway.
The elevator apparatus according to claim 2 or 4, wherein the sorase wheel is disposed at the top of the hoistway.
A stepped portion in which the wall surface on the front side in the depth direction of the counterweight is set back on the rear side in the depth direction is formed on the other side in the front direction of the counterweight,
One end side of the lower return wheel in the front direction is located between the vertical projection surface of the car and the step portion of the vertical projection surface of the counterweight when viewed from vertically above. The elevator apparatus of Claim 1 or Claim 3.
A stepped portion in which the wall surface on the front side in the depth direction of the counterweight is set back on the rear side in the depth direction is formed on the other end side in the front direction of the counterweight,
The one end side in the front direction of the sorase vehicle is located between the vertical projection surface of the car and the step portion of the vertical projection surface of the counterweight when viewed from vertically above. The elevator apparatus of Claim 2 or Claim 4.
The part of the main rope that is wound from the lower return wheel to the sorase wheel is not limited to the frontage direction between the vertical projection surface of the car and the vertical projection surface of the counterweight as viewed from above in the vertical direction. The elevator apparatus according to claim 2 or 4, wherein the elevator apparatus is located on a side.