WO2003008318A1

WO2003008318A1 - Elevator device

Info

Publication number: WO2003008318A1
Application number: PCT/JP2001/005993
Authority: WO
Inventors: Shuki Hamaguchi
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2001-07-11
Filing date: 2001-07-11
Publication date: 2003-01-30
Also published as: CN1213939C; EP1405813A1; CN1454178A; EP1405813B1; KR20030026368A; EP1405813A4; JPWO2003008318A1

Abstract

An elevator device wherein a hoist (4) is installed adjacent the top (3) of a shaft (1) in such a manner that it does not interfere with a car (7) in regions closer to the lateral surfaces and back surface in the shaft (1) as seen from above. This allows the elevator device, even if the car (7) and a balance weight (8) are disposed in the direction of the innermost, to have relatively few parts, to require a low cost and a small installation space, to suffer less failure due to flood damage, and to have a sufficient load distribution to minimize the deformation of car guide rails (9).

Description

Description Elevator overnight device

Technical field

The present invention relates to an elevator apparatus for driving a tow rope to lift and lower a car and a counterweight, and more particularly, to an elevator apparatus in which a car and a counterweight are arranged in a depth direction. Background art

2. Description of the Related Art Conventionally, an elevator device has been known in which a counterweight is installed on the back side of a hoistway with the door side of a car as a front side, and the car and the counterweight are raised and lowered.

Hereinafter, a known elevator device will be described with reference to FIG. FIG. 9 is a schematic perspective view showing a known elevator device.

As shown in the figure, the elevator system is mainly installed on the rear side of the hoistway 1 and the car 7 in which passengers enter from the door side 7a and move up and down the hoistway 1. A counterweight that rises and lowers in the direction opposite to the lifting direction of 7, 8 A tow rope that suspends the car 7 on one end and a counterweight 8 on the other end, a drive sheave 5 and a motor section 6 The hoisting machine 4 that drives the tow rope 13 by winding the tow rope 13 around the drive sheave 5 and the two car guide rails 9 that guide the elevator 7 up and down, and the lifting and lowering of the counterweight 8 It is composed of two guide rails 10 for weight. (

Here, a hoisting machine 4 is installed at a pit 2 (bottom) in the hoistway 1 via a support 21 (machine stand). The pit section 2 is provided with a car shock absorber base 19 that receives the load of the car 7 and a weight shock absorber base 20 that receives the load of the counterweight 8.

On the other hand, a beam 14 is installed on one side of the top 3 in the hoistway 1. The beam 14 is installed on one side of the hoistway 1 at both ends. It is supported by the guide rail 9 for baskets and the guide rail 10 for weights. Also, on the beam member 14, the tow rope 13 roving from the drive sheave 5 is turned to the car 7 to turn around and the car return car 15 to roping, and the towing rope from the drive sheave 5 A weight return car 16 is installed that turns the ropes 13 toward the weights 8 and turns the mouth.

In addition, at the top 3 in the hoistway 1, a tow rope rope 1 robbed from the counterweight 8 and a cage tie 1 7 that fixes one end of the tow port 13 robbed from the car 7 are attached. A weight rope stop 18 for fixing the other end of 3 is provided. Here, the car clasp 17 is installed on the other car guide rail 9 that does not support the beam member 14 with a support member interposed therebetween. In addition, the weight retaining portion 18 is installed on the other weight guide rail 10 that does not support the beam member 14 with a support member interposed therebetween.

On the other hand, on the bottom surface of the car 7, two car hanging cars 11 around which the towing port 13 robbed from the car return car 15 are wound are fixed. Note that the two car suspension vehicles 11 are arranged on the bottom surface of the car 7 so that the towing rope 13 passes almost directly below the center of gravity of the car 7. Then, the towing rope 13 robbed from the car return car 15 is mouthed toward the car cleat 17 via the two car suspension cars 11.

On the upper surface of the counterweight 8, a weight suspension wheel 12 around which a tow rope 13 gusseted from the weight return vehicle 16 is wound is fixed. Then, the tow rope 13 that has been gusted from the weight return vehicle 16 is robbed toward the weight retaining clasp 18 via the weight suspension vehicle 12.

The elevator apparatus configured as described above operates as a so-called 2: 1 roving elevator apparatus. That is, when the hoisting machine 4 is driven, the driving sheave 5 rotates in a predetermined direction, and the tow rope 13 moves by the friction (friction transmission). The movement of the tow rope 13 is transmitted to the car 7 and the counterweight 8 via the return car 15 and the return car 16. As a result, the car 7 and the counterweight 8 move up and down in opposite directions by half the movement of the tow rope 13. However, the above-described known elevator apparatus has the following problems.

First, the roving of the tow ropes 13 is complicated and long, and the number of parts involved in the towing is large. Therefore, it was necessary to secure a certain wide installation space in the hoistway 1. That is, the known elevator device has a first problem that it is relatively expensive and it is difficult to save space.

In addition, when a flood such as a flood occurred, the pit 2 in the hoistway 1 was flooded, and the hoist 4 installed in the pit 2 sometimes failed. In such a case, measures such as replacing the failed hoisting machine 4 with a new hoisting machine 4 have been taken. In other words, the known elevator system has a second problem that it is difficult to avoid inundation of the hoisting machine 4 due to flood damage.

In addition, since the car return wheel 15 is installed relatively close to the car guide rail 9 on the beam member 14, the load applied to the car return rail 15 by the car guide rail 9 Was easily deformed by the influence of If such deformation occurs, the riding comfort of the car 7 will be degraded. In other words, the known elevator device has a third problem that the arrangement of the supporting portions receiving the load of the car 7 and the counterweight 8 in the device is not sufficient.

The above-mentioned problems are particularly problematic in that the elevator system is intended to reduce the installation space in the opening and closing direction (frontage direction) of the car 7, ie, the depth direction of the hoistway 1 (perpendicular to the frontage direction). In the elevator system in which the car 7 and the counterweight 8 are arrayed, the problem cannot be ignored.

The present invention has been made to solve the above problems, and has a relatively small number of parts, is inexpensive, has a small installation space, is free from failure due to water damage, and has a sufficient load distribution so that the cage guide rail is deformed. The purpose of the present invention is to provide a non-elevating overnight device. Disclosure of the invention

According to the present invention, in the elevator apparatus, the hoist is installed near the top of the hoistway, and the riding machine is mounted on the side and rear side of the hoistway as viewed from the upper side. It is installed so as not to interfere. As a result, even if the elevator system has a car and a counterweight arranged in the depth direction, the number of parts is relatively small and inexpensive, the installation space is small, and there is no failure due to flood damage. Since the load is distributed, the deformation of the car guide rail can be reduced.

Further, the present invention relates to the improved elevator apparatus described above, wherein the drive sheave is provided on a support base supported by a car guide rail and a weight guide rail installed on one side of the hoistway. The hoist is installed so that the rotating surface is almost parallel to the side of the hoistway. As a result, even if the elevator and the elevator are arranged in the depth direction, the number of parts is relatively small, the cost is small, the installation space is small, and there is no failure due to flood damage. With the proper load distribution, the deformation of the car guide rail can be reduced.

According to the present invention, in the improved elevator apparatus described above, a deflecting pulley for changing a direction and relaying a traction rope roving from a hoist to a car is installed on a support base. As a result, even if the elevator and the counterweight are arranged in the depth direction and the elevator system is equipped with a car having a large floor area, the lower part of the center of gravity of the car can be reliably robbed, and the ride in the car can be performed. Comfort can be improved.

Further, in the present invention, in the improved elevator apparatus described above, the hoisting machine is supported on a support via a vibration damping member. This reduces vibration transmitted from the hoisting machine to the car guide rails, and improves the ride comfort of the car, even in elevators in which the car and the counterweight are arranged in the depth direction. It can be even better.

Further, in the present invention, in the above-described improved elevator apparatus, both side portions of the hoist are supported by an auxiliary support plate via a vibration damping member. This prevents the horizontal vibration of the hoist from being transmitted to the car guide rails even when the elevator and elevator are arranged in the depth direction with the car and the counterweight. The ride comfort in the basket can be further improved.

Further, the present invention provides the improved elevator apparatus described above, wherein a plurality of suspension wheels are provided on the counterweight. This allows for a large basket Even with an elevator device in which counterweights are arranged in the depth direction, a large-size counterweight can be raised and lowered in a stable posture. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic perspective view showing a preferred first elevator apparatus according to the present invention.

FIG. 2 is a schematic top view of the elevator apparatus shown in FIG. .

FIG. 3 is a partially enlarged view of the vicinity of the hoist in the elevator apparatus shown in FIG. FIG. 4 is a partially enlarged view of the vicinity of the hoist in the elevator apparatus shown in FIG. FIG. 5 is a schematic perspective view showing a preferred second elevator apparatus according to the present invention.

FIG. 6 is a schematic top view of the elevator apparatus shown in FIG.

FIG. 7 is a schematic perspective view showing a preferred third elevator apparatus according to the present invention.

FIG. 8 is a schematic top view of the elevator apparatus shown in FIG.

FIG. 9 is a schematic perspective view showing a known elevator device. BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in more detail with reference to the accompanying drawings. First, an elevator apparatus according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic perspective view showing an elevator apparatus according to a first embodiment of the present invention.

As shown in Fig. 1, the elevator system is mainly installed on the rear side of the hoistway 1, as well as the car 7 in which the occupants enter the door 7a and move up and down the hoistway 1. The counterweight 8, which lifts and lowers in the direction opposite to the lifting direction of 7, the suspension rope 7 that suspends the car 7 on one end, and the towing rope 13 that suspends the weight 8 on the other end, the drive sheave 5, and the motor 6 The hoisting machine 4 that drives the tow ropes 13 by winding the tow ropes 13 around the drive sheave 5, the two car guide rails 9 that guide the ascent and descent of the car 7, and the lifting and lowering of the counterweight 8 Guide rail for two weights It consists of 10 and so on.

Here, in the pit section 2 in the hoistway 1, whether the load of the car 7 is to be received: a stand 19, and a weight buffer stand 20 that receives the load of the counterweight 8 are installed.

On the other hand, at the top 3 in the hoistway 1, a hoist 4 is installed via a support 22. Specifically, the hoisting machine 4 is installed at the upper limit position of the elevating range of the car 7 or a position higher than the upper limit position as viewed from the front side (or the side surface).

In addition, the support base 2 2 of the top 3 in the hoistway 1 is supported at both ends by a car guide rail 9 and a weight guide rail 10 installed on one side of the hoistway 1, respectively. ing. Each surface in the hoistway 1 has the side corresponding to the door side 7a of the car 7 facing forward.

In addition, at the top 3 in the hoistway 1, there are a tow port roving from the car 7, a cage retaining part 1 7 for fixing one end of the cage 13, and a tow rope 1 roping from the counterweight 8. A weight rope retaining portion 18 for fixing the other end of 3 is provided. Here, the car rope retaining portion 17 is installed on the other car guide rail 9 that does not support the support base 22 with a support member interposed therebetween. In addition, the weight rope retaining portion 18 is installed on the other weight guide rail 10 that does not support the support base 22 with a support member interposed therebetween.

On the other hand, on the bottom of the car 7, two car hanging wheels 11 around which the towing ropes 13, which have been swung from the drive sheave 5, are wound are fixed. The two car suspension vehicles 11 are arranged on the bottom surface of the car 7 so that the towing rope 13 passes almost directly below the center of gravity of the car 7. Then, the towing rope 13 which has been mouthed from the drive sheave 5 is robbed toward the car rope retaining portion 17 via the two car suspension wheels 11.

On the upper surface of the counterweight 8, a weight suspension wheel 12 around which a tow rope 13 roved from the drive sheave 5 is wound is fixed. Then, the towing rope 13 roped from the drive sheave 5 is moved to the weight rope stopper 18 via the weight lifting wheel 12 and is mouthed.

As described herein, the elevator apparatus shown in the first embodiment is a hoisting machine. 4 is installed near the top 3 of the hoistway 1, so that the hoisting machine 4 can be prevented from being flooded by flood damage. Furthermore, since the tow ropes 13 are roped directly from the drive sheave 5 of the hoisting machine 4 to the car suspension wheel 11 of the car 7 and the weight suspension wheel 12 of the counterweight 8, As the length of the tow ropes 13 becomes shorter, members such as return wheels become unnecessary. Therefore, an elevator apparatus with a small number of parts and low cost can be provided.

FIG. 2 is a schematic top view of the elevator apparatus shown in FIG.

As shown in FIG. 2, the hoisting machine 4 is configured such that the elevator device shown in FIG. 1 is viewed from the upper side (the side of the top 3), and is located on the side 1 c side in the hoistway 1 and the It is installed near the 1b side, out of the projection area of car 7. Here, the projection area of the car 7 is the range of the car 7 in FIG. The back 1b and the side 1c in the hoistway 1 have the door 7a of the car 7 facing the front 1a.

In addition, the hoisting machine 4 is installed so that the motor section 6 is on the side 1 c side and the drive sheave 5 is on the car 7 side, and the rotation center axis of the drive sheave 5 is the side face in the hoistway 1. It is installed almost perpendicular to 1 c. Further, similarly to the hoisting machine 4, the support base 2 2 on which the hoisting machine 4 is installed also moves the projection area of the car 7 toward the side 1c side in the hoistway 1 and closer to the backside 1b side. It is set off. In this way, the hoisting machine 4 is formed relatively thin in the direction of the center axis of rotation so that it can be arranged in the gap in the frontage direction between the car 7 and the side surface 1c of the hoistway 1.

In addition, the drive sheave 5 of the hoisting machine 4 and the weight suspension wheel 12 of the counterweight 8 are arranged such that the surfaces on which both the tow ropes 13 are wound intersect as viewed from the top. . That is, the tow rope 13 is robbed in the vertical direction from the drive sheave 5 to the weight lifting wheel 12. In addition, the drive sheave 5 of the hoisting machine 4 and one of the car suspension wheels 11 of the car 7 are arranged so that, when viewed from the top, the surfaces on which both the towing ropes 13 are wound intersect. Have been. In other words, the towing rope 13 is vertically rolled from the driving sheave 5 to the car suspension car 11. Further, the two car suspension wheels 11 of the car 7 are arranged at positions near the diagonal of the car 7 when viewed from above. That is, on the bottom of the car 7, the towing rope 13 passes almost directly below the center of gravity of the car 7. As described above, in the elevator apparatus shown in the first embodiment, since the hoisting machine 4 is installed separately from the car guide rails 9, the car guide rails 9 are provided. The load applied to the car 7 and the counterweight 8 can prevent the deformation of the car guide rail 9 due to the load on the car 7 and the counterweight 8.

3 is a partially enlarged view of the vicinity of the hoist in the elevator apparatus shown in FIG. 1, and FIG. 4 is a partially enlarged view of the vicinity of the hoist in the elevator apparatus shown in FIG. Figure).

As shown in FIGS. 3 and 4, the hoisting machine 4 is installed on the support base 22 with the vibration damping member 25 interposed. Here, the damping member 25 is made of, for example, a vibration-proof rubber, and absorbs vertical (height) vibration energy transmitted directly from the hoisting machine 4 to the support member 22. An auxiliary support plate 24 for supporting the side surface of the hoisting machine 4 parallel to the rotation center axis of the drive sheave 5 is provided on the support base 22 on both sides of the hoisting machine 4. It is provided with intervening. Here, the damping member 24 is formed of, for example, a vibration-proof rubber or the like, and absorbs vibration in the direction between both side surfaces (horizontal direction) generated by the operation of the hoisting machine 4. As shown in FIG. 4, the car guide rail 9 supports the support base 22 by a detachable clip member 9a, and the weight guide rail 10 is a detachable clip member 1. At 0a, the support member is supported.

As described above, the elevator apparatus shown in the first embodiment effectively absorbs vibration generated by the operation of the hoisting machine 4 installed at the top of the hoistway 1. Therefore, the vibration transmitted to the car 7 via the car guide rail 9 can be reduced, and a comfortable ride elevator apparatus in the car 7 can be provided.

The elevator apparatus configured as described above operates as a so-called 2: 1 roving elevator apparatus. That is, when the hoisting machine 4 is driven, the driving sheave 5 rotates in a predetermined direction, and the traction rope 13 moves by traction. The movement of the tow rope 13 is transmitted to the car 7 and the counterweight 8. As a result, the car 7 and the counterweight 8 move up and down in opposite directions with a movement of half of the movement of the tow rope 13.

As described above, according to the elevator apparatus according to the first embodiment, Since the number of parts is relatively small and the configuration is simple, it is possible to provide an elevator apparatus which is inexpensive, has a small installation space, and especially has a small installation space in the frontage direction. In addition, since the hoisting machine 4 is installed near the top 3 of the hoistway 1 and away from the car guide rail 9, there is little failure due to flood damage and the car guide rail 9 is not deformed. Thus, it is possible to provide a highly reliable and comfortable ride apparatus. Furthermore, since vibrations caused by the operation of the hoisting machine 4 are effectively reduced, it is possible to provide an elevator apparatus with good riding comfort in the car 7. Next, an elevator apparatus according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a schematic perspective view showing an elevator apparatus according to a second embodiment of the present invention. The second embodiment is largely different from the first embodiment in that a deflecting pulley 28 is provided between the hoisting machine 4 and the car 7. As shown in FIG. 5, as in the first embodiment, the elevator device mainly includes a car 7, a counterweight 8, a tow rope 13, and a hoist 4 having a drive sheave 5. It consists of a car guide rail 9, a weight guide rail 10 and the like. Here, a hoisting machine 4 is installed on a top 3 in the hoistway 1 via a support 22. More specifically, the hoisting machine 4 is installed at the uppermost position of the ascending / descending range of the car 7 or at a position higher than that when viewed from the front side. The hoisting machine 4 is supported on both sides by an auxiliary support plate 24 installed on a support base 22 via a vibration damping member that absorbs horizontal vibration of the hoisting machine 4. I have.

In addition, the support base 2 2 of the top 3 in the hoistway 1 is supported at both ends by a car guide rail 9 and a weight guide rail 10 installed on one side of the hoistway 1, respectively. ing.

Further, a deflecting pulley 28 is installed on the support base 22 on the top 3, closer to the car guide rail 9 than the position where the hoisting machine 4 is installed. The deflecting pulley 28 relays the towing rope 13 wound around the driving sheave 5 to the car hanging car 11 of the car 7 to perform a mouth bing. More specifically, the tow rope 13 wound around the drive sheave 5 is roped obliquely to the vertical direction toward the deflecting pulley 28. And the tow rope 1 3 wrapped around the deflecting pulley 28 The direction is changed by the deflecting pulley 28 and the vehicle is vertically rolled toward the car suspension wheel 11. Then, the tow rope 13 is robbed through the bottom surface of the car 7 toward the car cleat 17, and the end of the tow rope 13 is supported by the car cleat 17. FIG. 6 is a schematic top view of the elevator apparatus shown in FIG.

As shown in FIG. 6, the hoisting machine 4 is provided with a car 7 on the side 1 c side of the hoistway 1 and near the back 1 b side, as viewed from the top side of the elevator apparatus of FIG. It is set out of the projection area.

The hoisting machine 4 is installed so that the drive sheave 5 is on the car 7 side, and is installed such that the rotation center axis of the drive sheave 5 is substantially orthogonal to the side surface 1c. . The drive sheave 5 and the weight hanging wheel 12 are arranged such that the surfaces around which both the pulling ropes 13 are wound intersect as viewed from above. In other words, the tow rope 13 is roped vertically from the drive sheave 5 to the weight suspension wheel 12. The drive sheave 5 and the deflecting pulley 28 are arranged such that the surfaces around which both the tow ropes 13 are wound are parallel to each other when viewed from above. That is, the traction rope 13 is roving obliquely from the drive sheave 5 to the deflecting pulley 28. Also, the deflector pulley 28 and the one car suspension wheel 11 are arranged such that the surfaces around which both the tow ropes 13 are wound intersect as viewed from the top. That is, the traction rope 13 is roped vertically from the drive sheave 5 to the car suspension car 11. In addition, the tow rope 13 pierced by the two car hanging cars 11 1 passes almost through the position of the center of gravity of the car 7 when viewed from above.

As described above, the elevator apparatus shown in the second embodiment uses the deflecting pulleys 28 for the car 7 that is long in the depth direction, so that the tow ropes 13 can be used for the car 7. Roving so as to surely pass under the center of gravity. The elevator apparatus configured as described above operates as follows, as in the first embodiment. That is, when the hoisting machine 4 is driven, the drive sheave 5 rotates in a predetermined direction, and the traction rope 13 moves by traction. The movement of the tow rope 13 is transmitted to the car 7 via the deflecting pulley 28 and directly to the counterweight 8. As a result, car 7 A counterweight of 8 means going up and down in opposite directions.

As described above, according to the elevator apparatus according to the second embodiment, as in the first embodiment, it is inexpensive, has a small installation space, and has few failures due to flood damage. It is possible to provide an elevator apparatus with high reliability and high ride comfort with little deformation of the car guide rail 9. Furthermore, the use of the deflecting pulley 28 increases the degree of freedom of the towing of the towing rope 13 from the hoisting machine 4 to the car 7 so that the car 7 having a large floor area can be used. The lower part of the center of gravity can be roped. As a result, the car 7 can be lifted and lowered while being guided by the car guide rails 9 with good balance, so that it is possible to provide a comfortable and comfortable elevator apparatus for the car 7. Next, an elevator apparatus according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a schematic perspective view showing an elevator apparatus according to a third embodiment of the present invention. The third embodiment is significantly different in configuration from the first embodiment in that a plurality of weight suspension wheels 12 are installed on the counterweight 8.

As shown in FIG. 7, the elevator apparatus is mainly provided with a car 7, a counterweight 8, a tow rope 13, and a drive sheave 5, similarly to the first embodiment. It is composed of the upper machine 4, the car guide rails 9, the weight guide rails 10, and the like.

Here, the hoisting machine 4 is installed on the top 3 in the hoistway 1 via the support 22 in the same manner as in the above embodiments. Both ends of the support base 22 are supported by a car guide rail 9 and a weight guide rail 10 installed on one side surface of the hoistway 1, respectively.

Further, at the top 3 in the hoistway 1, a weight retaining part 18 for fixing one end of the tow rope 13 roped from the counterweight 8 is installed. Here, the weight rope retaining portion 18 is installed on the other weight guide rail 10 that does not support the support base 22 with a support member interposed therebetween.

On the other hand, on the bottom surface of the car 7, two car hanging wheels 11 around which the towing ropes 13 robbed from the driving sheave 5 are wound are fixedly provided as in the above-described embodiments. On the upper surface of the counterweight 8, two weight suspension wheels 12 around which the tow ropes 13 roved from the drive sheave 5 are wound are provided. Then, the towing rope 13 roped from the driving sieve 5 is rubbed toward the weight cleat 18 via the two weight suspension wheels 12.

FIG. 8 is a schematic top view of the elevator apparatus shown in FIG.

As shown in FIG. 8, the hoisting machine 4 is provided with a car 7 on the side 1 c side in the hoistway 1 and near the back 1 b side when the elevator apparatus in FIG. 7 is viewed from the top side. It is set out of the projection area.

The hoisting machine 4 is installed so that the drive sheave 5 is on the car 7 side, and is installed such that the rotation center axis of the drive sheave 5 is substantially orthogonal to the side surface 1c. . The drive sheave 5 and one of the weight suspending wheels 12 are arranged such that the surfaces around which the two tow ropes 13 are wound intersect as viewed from above. That is, the tow rope 13 is vertically pinged from the drive sheave 5 to one of the weight suspension wheels 12. Further, in the counterweight 8, the two weight suspension wheels 12 are disposed such that the surfaces around which both the tow ropes 13 are wound are substantially parallel when viewed from above. In other words, the tow rope 13 is horizontally rolled from one weight hanging wheel 12 to the other weight hanging wheel 12.

As described above, the elevator apparatus shown in the third embodiment uses the counterweight 8 having a large size in the distance direction between the two guide rails 10 for weight. Also, by installing a plurality of weight suspenders 12 on the counterweight 8 and roving the tow rope 13 there, the counterweight 8 can be lifted in a well-balanced manner.

The elevator apparatus configured as described above operates as follows, as in the above embodiments. That is, when the hoisting machine 4 is driven, the drive sheave 5 rotates in a predetermined direction, and the traction rope 13 is moved by traction. The movement of the tow rope 13 is transmitted to the car 7 and the counterweight 8. As a result, the car 7 and the counterweight 8 move up and down in opposite directions. As described above, according to the elevator apparatus according to the third embodiment, as in the first embodiment, it is inexpensive, has a small installation space, and has few failures due to flood damage. It is possible to provide an elevator apparatus with little deformation of the car guide rail 9 and high reliability and good ride comfort. Furthermore, by using a plurality of weight suspension wheels 12, it is possible to provide an elevator apparatus capable of moving up and down in a well-balanced manner even with a large and heavy counterweight 8.

In addition, the present invention is not limited to the above embodiments, and each embodiment may be appropriately changed within the scope of the technical idea of the present invention, in addition to those suggested in each embodiment. It is clear. Further, the number, position, shape, and the like of the above-mentioned constituent members are not limited to the above-described embodiment, and can be set to a number, position, shape, or the like suitable for carrying out the present invention. In each drawing, the same components are denoted by the same reference numerals. Industrial applicability

As described above, in the elevator apparatus according to the present invention, the hoist is installed near the top of the hoistway, and the hoisting machine is mounted on the side and rear side of the hoistway as viewed from the upper side. It is installed so as not to interfere with the car. As a result, the elevator has a relatively small number of parts, is inexpensive, has a small installation space, is free from damage due to flood damage, has little deformation of the guide rails for cars, and has a car and counterweight arranged in the depth direction. Useful as an overnight device.

Further, the elevator apparatus according to the present invention is characterized in that a rotating surface of a drive sheave is provided on a support base supported on a car guide rail and a weight guide rail installed on one side of the hoistway. The hoist was installed so that it was almost parallel to As a result, the number of parts is relatively small, the cost is low, the installation space is small, there is no failure due to flood damage, there is little deformation of the car guide rails, and the elevator with the cars and the counterweights arranged in the depth direction Useful as a device.

Further, the elevator apparatus according to the present invention is such that a deflecting pulley for changing a direction and relaying a tow rope that is pierced from a hoist to a car is installed on a support base. This ensures that the car is roving below the center of gravity. The car and the counterweight are arranged in the depth direction, and are useful as an elevator system equipped with a car with a large floor area.

Further, the elevator apparatus according to the present invention is such that the hoisting machine is supported on a support base with a vibration damping member interposed therebetween. As a result, vibration transmitted from the hoist to the car guide rails is reduced, and the riding comfort of the car is further improved, and the elevator and the counterweight are arranged in the depth direction. Useful as In the elevator apparatus according to the present invention, both side portions of the hoist are supported by an auxiliary support plate via a vibration damping member. As a result, the horizontal vibration of the hoist is not transmitted to the guide rails for the car, and the riding comfort of the car is further improved, and the elevator and the counterweight are arranged in the depth direction. Useful as

In addition, the elevator apparatus according to the present invention is provided with a plurality of hanging wheels on a counterweight. This makes it possible to raise and lower a heavy counterweight with a large size corresponding to a large-sized car in a stable posture, and an elevator system in which the car and the counterweight are arranged in the depth direction. Useful as

Claims

The scope of the claims

1. A car that is guided by a plurality of car guide rails and moves up and down the hoistway, and is guided by a plurality of weight guide rails and the back of the hoistway with the door side of the car facing the front With a counterweight that goes up and down the side,

A part of a tow rope that is installed in the hoistway and suspends the car on one end and suspends the counterweight on the other end is wound around a rotatable drive sheave. An elevator apparatus comprising: a hoist that drives the tow rope by rotating a drive sheave to raise and lower the car and the counterweight in opposite directions.

The hoist is installed at an upper limit position or higher than the elevation range of the car as viewed from the front side, and is located at a side surface side of the hoistway as viewed from the upper side and closer to the rear side. A device for setting up a car that is located outside the projection area of the car.

2. One of the plurality of car guide rails and one of the plurality of weight guide rails are installed on the side surface in the hoistway,

The hoist is installed on the car guide rails installed on the side surface in the hoistway and on a support base supported by the weight guide rails, and a rotation center axis of the drive sheave is provided. 2. The elevator apparatus according to claim 1, wherein the device is installed so as to be substantially orthogonal to a side surface in the hoistway.

3. The support base is further provided with a deflector pulley for roping by relaying the tow port wound around the drive sheave of the hoisting machine toward the car. 3. The elevator device according to claim 2, wherein:

4. The hoisting machine according to claim 2 or 3, wherein the hoisting machine is installed on the support base via a vibration damping member that absorbs vibration generated by the operation of the hoisting machine. Elevator equipment.

5. The support base includes an auxiliary support plate that supports both side surfaces of the hoisting machine that is parallel to a rotation center axis of the drive sheave, 5. The auxiliary machine according to claim 4, wherein the auxiliary support plate supports the hoist through a vibration damping member that absorbs vibration in a direction between both side surfaces generated by operation of the hoist. Elevator overnight device.

6. The balancing weight according to any one of claims 1 to 5, wherein the lifting weight includes a plurality of suspension pulleys around which the tow rope roved from the drive sheave of the hoist is wound. The described elevator device.