Elevator device

Abstract

Elevator device including: a cabin (2) and a counterweight (3) configured to be movable in a vertical direction in an elevator shaft (1); a pair of counterweight guide rails (5) provided in the elevator shaft (1) and configured to guide a movement of the counterweight; a drive device (7) comprising a drive disc (72) and configured to generate a driving force for movement of the cabin and counterweight (3); a weight-side main rope end device (10) comprising a weight-side main rope stop section (12) and provided in an upper part of the elevator shaft (1); a cabin-side main rope end device (11) comprising a cabin-side main rope stop section (13) and provided in the upper part of the elevator shaft (1); a main rope (14) having a first end section (14a) connected to the weight-side main rope anchor section (12) and a second end section (14b) connected to the cabin-side main rope anchor section (13), and configured to suspend the cabin (2) and the counterweight (3) in a state of being moved around the drive pulley (72); and a unit frame (24) comprising a lower support (21) configured to support the drive device (7) and an upper support (22) configured to support the weight-side main rope end device (10) as a plurality of supports, and comprising a pair of vertical columns (23) configured to connect the lower support (21) and the upper support (22), the unit frame (24) being attached to the pair of counterweight guide rails (5), wherein the drive device (7) is arranged directly above a movement range of the counterweight (3) and is arranged such that it is located outside an area corresponding to the cabin (2) when the elevator shaft (1) is viewed from above, and wherein the weight-side main rope end device (10) is arranged such that an uppermost part of the weight-side main rope end device (10) is arranged at a position higher than a position of an uppermost part of the drive device (7), and wherein, when the drive device (7) is viewed along a direction orthogonal to a surface connecting the pair of counterweight guide rails (5), a part of the weight-side main rope end device (10) is arranged in an area corresponding to the drive device (7).

Description

Technical field

[0001] The present invention relates to an elevator device in which a drive device is provided in an elevator shaft, configured to generate a driving force for moving a cabin and a counterweight. Technical background

[0002] Previously, a machine-roomless elevator was known that comprised a unit frame attached to the upper ends of a pair of counterweight guide rails configured to guide the movement of a counterweight. In this machine-roomless elevator, one end of a main rope configured to suspend a cabin and the counterweight, and a hoist configured to move the cabin and the counterweight, are attached to a unit frame. The hoist is located above a lower beam of the unit frame, and the end of the main rope is connected to the lower beam of the unit frame.In the related machine-roomless elevator described above, for the purpose of installing the hoisting machine in the upper section of the elevator shaft, after the hoisting machine has been raised, while an upper section of the unit frame to which the hoisting machine is attached is suspended by block chains, the block chains are attached to a lifting structure that receives a lower side of the hoisting machine so that it further raises the hoisting machine (reference to, for example, Patent Literature 1). See also Patent Literature 2-5. Citation list, patent, literature [PTL 1] JP 4 828 084 B2 [PTL 2] EP 2 067 734 A1 [PTL 3] JP 2000- 211 851 A [PTL 4] WO 2016 / 024 347 A1 [PTL 5] JP 2008- 230 809 A Summary of the invention: Technical problem

[0003] In the related machine-roomless elevator described in patent reference 1, however, the end of the main rope is connected to the lower support of the unit frame to which the hoisting machine is attached. Therefore, to ensure a vertical range of motion for the counterweight, it is necessary to position the hoisting machine as close as possible to the ceiling of the elevator shaft.

[0004] For example, European standard EN 81-20 stipulates that when maintenance work needs to be carried out on equipment in the elevator shaft on a car, the distance from the working surface of the top of the car to the ceiling of the elevator shaft must be equal to or greater than 2100 mm. In the related machine-roomless elevator described in patent reference 1, the hoist is to be installed as close as possible to the ceiling of the elevator shaft. Thus, if European standard EN 81-20 is followed, the hoist position will be high when viewed from the working surface of the top of the car. This will make it difficult to carry out maintenance work on the hoist.

[0005] To position the hoist as close as possible to the ceiling of the elevator shaft during its assembly, the lifting platform in the associated machine-roomless elevator, which accommodates the underside of the hoist, must be suspended by block chains to raise the hoist. Therefore, not only the lifting platform but also the suspension points for the hoist must be located below it. Consequently, lifting the hoist is undesirable if it is improperly suspended.

[0006] The present invention was made to solve the problem described above and has the objective of providing an elevator device that is able to facilitate maintenance work on a drive device and assembly work for the drive device, while ensuring a range of motion for a counterweight. Solution to the problem

[0007] According to one embodiment of the present invention, an elevator device is provided comprising: a cabin and a counterweight configured to be movable in a vertical direction within an elevator shaft; a pair of counterweight guide rails provided in the elevator shaft and configured to guide movement of the counterweight; a drive device comprising a drive pulley configured to generate a driving force for moving the cabin and the counterweight; a weight-side main rope end device comprising a weight-side main rope stop section and provided in the lower part of the elevator shaft; a cabin-side main rope end device comprising a cabin-side main rope stop section and provided in an upper part of the elevator shaft;and a main rope having a first end section connected to the weight-side main rope anchor section and a second end section connected to the cabin-side main rope anchor section, and configured to suspend the cabin and counterweight in a state of pivoting around the drive pulley, wherein the drive device is provided directly above a range of motion of the counterweight and is arranged to be provided outside an area corresponding to the cabin when the lift shaft is viewed from above, and wherein the weight-side main rope end device is arranged such that a top portion of the weight-side main rope end device is located in a position higher than a position of a top portion of the drive device. Advantageous effects of the invention

[0008] With the elevator device according to one embodiment of the present invention, the counterweight-side main rope end device can be prevented from obstructing the counterweight at a position below the drive device. In this way, the drive device can be positioned lower while maintaining the counterweight's range of motion. This allows the drive device to be positioned closer to the working surface of the upper edge of the cabin, which is located a predetermined distance or more downwards from the ceiling surface of the elevator shaft. This facilitates maintenance work. Furthermore, the drive device can be positioned lower to increase the distance between the ceiling surface of the elevator shaft and the drive device position.Therefore, during installation, the drive unit does not need to be positioned as close as possible to the ceiling surface of the elevator shaft. Instead, the drive unit can be carried stably to a designated position, with the upper part suspended by a hoist. This also simplifies the installation process. Brief description of the characters Fig. Figure 1 is a top view illustrating a lifting device according to a first embodiment of the present invention. Fig. 2 is a top side view to illustrate the elevator device of Fig. 1. Fig. Figure 3 is a front view illustrating the conveyor machine and unit frame of Fig. 2. Fig. Figure 4 is a side view to illustrate the conveyor machine and the unit frame according to Fig. 3. Fig. Figure 5 is a side view illustrating the hoisting machine, a weight-side main rope end device, and the unit frame of Fig. 2. Fig. Figure 6 is an upper side view to illustrate a lifting device according to a second embodiment of the present invention. Fig. Figure 7 is a top view illustrating the elevator device according to a third embodiment of the present invention. Fig. Figure 8 is a top side view to illustrate the elevator device according to Fig. 7. Fig. Figure 9 is an upper side view to illustrate a lifting device according to a fourth embodiment of the present invention. Fig. Figure 10 is a top view illustrating a lifting device according to a fifth embodiment of the present invention. Fig. Figure 11 is a top side view illustrating the elevator device of Fig. 10. Description of the embodiments

[0009] Now, embodiments of the present invention are described with reference to the drawings. First embodiment

[0010] Fig. Figure 1 is a top view illustrating a lifting device according to a first embodiment of the present invention. Fig. 2 is a top side view to illustrate the elevator device of Fig. 1. In Fig. A cabin 2 and a counterweight 3 are provided in an elevator shaft 1 so that they can move vertically from it. The elevator shaft 1 has a pair of shaft wall surfaces 1a and 1b shaped so that they face each other in a width direction of the elevator shaft 1. The cabin 2 comprises a main cabin section having a bottom surface, a top surface, a front surface, a rear surface, and a pair of side surfaces. The cabin 2 is positioned in the elevator shaft 1 with one side surface of the main cabin section facing an elevator wall surface 1a and another side surface of the main cabin section facing another shaft wall surface 1b. The cabin 2 has a door opening at its front.Cabin 2 is arranged so that the door opening is oriented towards a floor corridor 6 on each floor when the elevator shaft 1 is viewed from above.

[0011] The counterweight 3 is located outside any area corresponding to the cabin 2 when the elevator shaft 1 is viewed from above. In this example, when the elevator shaft 1 is viewed from above, the counterweight 3 is positioned between one elevator shaft wall surface 1a and one side surface of the cabin 2. Therefore, the elevator device in this example is a counterweight-side lowering elevator device.

[0012] In the elevator shaft 1, a pair of car guide rails 4 and a pair of counterweight guide rails 5 are installed along the vertical direction of these. The car 2 is arranged between the pair of car guide rails 4, with the counterweight 3 arranged between the pair of counterweight guide rails 5.

[0013] Each of the cabin guide rails 4 comprises a flange area 4a and a guide area 4b, which is arranged along the flange area 4a so that it projects horizontally from the flange area 4a. A cross-sectional shape of the cabin guide rail 4, taken on a surface orthogonal to the longitudinal direction of the cabin guide rail 4, is a T-shape formed by a combination of the flange area 4a and the guide area 4b.

[0014] The pair of cabin guide rails 4 is arranged such that the guide areas 4b are opposite each other in the width direction of the elevator shaft 1. The cabin 2 is moved in a vertical direction within the elevator shaft 1 while being guided by the guide area of ​​the respective cabin guide rails 4.

[0015] Each of the counterweight guide rails 5 comprises a flange region 5a, which is arranged along a longitudinal direction of the counterweight guide rails 5, and a guide region 5b, which is arranged along the flange region 5a such that it projects from the flange region 5a. A cross-sectional shape of the counterweight guide rails 5, taken on a surface orthogonal to the longitudinal direction of the counterweight guide rails 5, is a T-shape formed by a combination of the flange region 5a and the guide region 5b.

[0016] The pair of counterweight guide rails 5 is arranged such that the guide sections 5b are opposite each other in a depth direction of the elevator shaft 1, specifically a direction orthogonal to both the width direction of the elevator shaft 1 and its vertical direction. Thus, when the elevator shaft 1 is viewed from above, a straight line A connecting the guide sections 4b of the pair of car guide rails 4 and a straight line B connecting the guide sections 5b of the pair of counterweight guide rails 5 are orthogonal to each other.Furthermore, when the elevator shaft 1 is viewed from above, the pair of counterweight guide rails 5 is arranged on a depth side, with respect to the straight line A connecting the guide sections 4b of the pair of car guide rails 4, as viewed from the floor corridor 6, and is located between the elevator shaft wall surface 1a and the car 2. The counterweight 3 moves vertically within the elevator shaft 1 while being guided by the guide sections 5b of the counterweight guide rails 5.

[0017] In the upper part of the elevator shaft 1, a hoist 7 (or drive device 7) is provided, which is a drive device configured to generate a driving force to move the cabin 2 and the counterweight 3. The hoist 7 is provided directly above a vertical range of motion of the counterweight 3. Thus, when the elevator shaft 1 is viewed from above, at least part of the hoist 7 is located within a range corresponding to the counterweight 3. Furthermore, when the elevator shaft 1 is viewed from above, the hoist 7 is located outside the range corresponding to the cabin 2. In this example, a thin-type hoist, which has a larger radial dimension than axial dimension, is used by the hoist 7.

[0018] The conveying machine 7 comprises a drive unit body 71 and a drive pulley 72. The drive unit body 71 includes a motor. The drive pulley 72 is provided to the drive unit body 71 so that it is rotatable and is rotated by a driving force generated by the drive unit body 71. The conveying machine 7 is arranged with a rotation axis of the drive pulley 72 that is positioned horizontally. In this example, when the elevator shaft 1 is viewed from above, as shown in Fig. As illustrated in Figure 1, the hoisting machine 7 is arranged with the drive pulley 72 oriented towards the side of the cabin 2 and the drive unit main body 71 oriented towards the elevator shaft wall surface 1a. Furthermore, in this example, when the elevator shaft 1 is viewed from above, the axis of rotation of the drive pulley 72 is orthogonal to the straight line B connecting the guide sections 5b of the pair of counterweight guide rails 5.

[0019] A pair of cabin suspension discs 8 is provided in a lower part of the cabin 2. One of the cabin suspension discs 8 is located below one of the side surfaces of the cabin main section, with another cabin suspension disc 8 located below the other side surface of the cabin main section. A counterweight suspension disc 9 is provided to an upper edge of the counterweight 3. In this example, when the elevator shaft 1 is viewed from above, an axis of the counterweight suspension disc 9 is inclined with respect to the straight line B that connects the guide sections 5b of the pair of counterweight guide rails 5.

[0020] In the upper part of the elevator shaft 1, a weight-side main rope end device 10s and a car-side main rope end device 11 are provided. When the elevator shaft 1 is viewed from above, as in Fig. As illustrated in Figure 1, the counterweight-side main rope end device 10 is arranged between the hoisting machine 7 and the elevator shaft wall surface 1a. Furthermore, in this example, the counterweight-side main rope end device 10 is positioned directly above the vertical range of motion of the counterweight 3. Thus, in this example, when the elevator shaft 1 is viewed from above, at least part of the counterweight-side main rope end device 10 is arranged in an area corresponding to the counterweight 3.

[0021] As in Fig. As illustrated in Figure 2, the counterweight-side main rope end device 10 is arranged such that its uppermost portion is positioned higher than the uppermost part of the hoisting machine 7. Furthermore, the counterweight-side main rope end device 10 is arranged such that its lowermost portion is positioned higher than the lowest part of the hoisting machine 7. With this arrangement described above, the counterweight 3 is prevented from obstructing the counterweight-side main rope end device 10 at a position below the hoisting machine 7. Furthermore, when the hoisting machine 7 is viewed along a direction orthogonal to a surface encompassing the guide areas 5b of the pair of counterweight guide rails 5, as shown in Figure 2, the counterweight 3 is also prevented from obstructing the counterweight-side main rope end device 10 at a position below the hoisting machine 7. Fig. As illustrated in Figure 2, a part of the weight-side main rope end section 10 is arranged such that it is located in an area corresponding to the hoisting machine 7.

[0022] The weight-side main rope end device 10 comprises a plurality of weight-side main rope attachment sections 12. In this example, as in Fig. As illustrated in Figure 2, all of the weight-side main rope attachment sections 12 are arranged such that their uppermost areas are positioned higher than the position of an uppermost area of ​​the hoisting machine 7.

[0023] When elevator shaft 1 is viewed from above, as shown in Fig. As illustrated in Figure 1, the car-side main rope end device 11 is arranged between the side surfaces of the car 2 and the surface of the elevator shaft wall 1b. Furthermore, the car-side main rope end device 11 is supported on one of the car guide rails 4 by means of a support (not shown). The car-side main rope end device 11 comprises a plurality of car-side main rope attachment sections 13.

[0024] The cabin 2 and the counterweight 3 are suspended in the elevator shaft 1 by a plurality of main ropes 14. Each of the main ropes 14 has a first end section 14a and a second end section 14b. The first end sections 14a of the main ropes 14 are individually connected to a plurality of main rope anchor sections 12, with the second end sections 14b of the main ropes 14 being individually connected to a plurality of cabin-side main rope anchor sections 13. Each of the main ropes 14 is guided from the first end section 14a to the second end section 14b via the counterweight suspension sheave 9, the drive sheave 72, and the pair of cabin suspension sheaves 8, in that order. In this way, the main ropes 14 suspend the cabin 2 and the counterweight 3 in a state where they are guided over the counterweight suspension pulley 9, the drive pulley 72 and the pair of cabin suspension pulleys 8.

[0025] As in Fig. As illustrated in Figure 2, a unit frame 24 is attached to the pair of counterweight guide rails 5. A lower portion of the unit frame 24 is individually attached to the counterweight guide rails 5 by a pair of lower mounting bases 25, and another lower portion of the unit frame 24 is individually attached to the counterweight guide rails 5 by a pair of upper support bases 26. In this example, each of the lower mounting bases 25 is a support configured to resist a downward load applied to the unit frame 24, and each of the upper mounting bases 26 is a vibration stop configured to resist a moment generated due to eccentricity of the unit frame 24.

[0026] The hoisting machine 7 and the weight-side main rope end device 10 are mounted on the unit frame 24. Furthermore, the unit frame 24 comprises a lower beam 21, an upper beam 22, and a pair of vertical supports 23. The lower beam 21 supports the hoisting machine 7. The upper beam 22 supports the weight-side main rope end device 10. The pair of vertical supports 23 connects the lower beam 21 and the upper beam 22. Specifically, the unit frame 24 comprises the plurality of beams 21 and 22, which individually support the hoisting machine 7 and the weight-side main rope end device 10, and the pair of vertical supports 23 connects the plurality of beams 21 and 22. The hoisting machine 7, which is supported by the lower beam 21, is arranged on the lower beam 21.In this example, the lower support 21 is mounted on the lower mounting bases 25, with the upper support 22 being mounted on the upper mounting bases 26.

[0027] Each of the weight-side main rope attachment sections 12 comprises a stirrup bar 31, a receiving plate 32, a spring 33, and a nut 34. The first end section 14a of the main rope 14 is connected to the stirrup bar 31. The receiving plate 32 is an elastic element receiving section provided to the stirrup bar 31. The spring 33 is an elastic element configured to receive a load applied to the main rope 14 by the receiving plate 32. The nut 34 is an adjuster screwed onto the stirrup bar 31 and configured to adjust the position of the receiving plate 32 relative to the stirrup bar 31 in a longitudinal direction along the stirrup bar 31. The spring 33 is compressed between an upper surface of the upper beam 22 and the receiving plate 32 in a state where it is elastically deformed under the load received by the receiving plate 32.In this example, the receiving plate 32, the spring 33, and the nut 34 of each of the weight-side main rope stop sections 12 are arranged at positions higher than the position of the uppermost part of the hoisting machine 7. A space in which the upper parts of the stirrup bars 31 of the receiving plates 32, the springs 33, and the nuts 34 are arranged is provided between a ceiling surface 1c of the hoist shaft 1 and the upper beam 22. Tension can be adjusted from each of the main ropes 14 by actuating the nut 34 to adjust the position of the receiving plate 32 relative to the stirrup bar 31.

[0028] Each of the cabin-side main rope anchor sections 13 has the same configuration as each of the weight-side main rope anchor sections 12. The second end sections 14b of the main rope 14 are each attached to stirrup bars of the cabin-side main rope anchor sections 13.

[0029] Fig. Figure 3 is a front view to illustrate the conveyor machine 7 and the unit frame 24 of Fig. 2. Furthermore, Fig. 4 a side view to illustrate the conveying machine 7 and the unit frame 24 of Fig. 3. As in Fig. As illustrated in Figure 3, the upper support 22 is positioned higher than the lower support 21. In this example, the upper surface of the upper support 22 is positioned higher than the top part of the conveyor 7.

[0030] As in Fig. As illustrated in Figure 4, the lower beam 21 is arranged such that a surface B, encompassing the guide sections 5b of the pair of counterweight guide rails 5, passes through the lower beam 21. The upper beam 22 and the pair of vertical supports 23 are arranged such that the surface B, encompassing the guide sections 5b of the pair of counterweight guide rails 5, does not pass through the upper beam 22 and the pair of vertical supports 23. Specifically, when the elevator shaft 1 is viewed from above, the lower beam 21 is arranged such that the straight line B, connecting the guide sections 5b of the pair of counterweight guide rails 5, passes through the lower beam 21, while the upper beam 22 is arranged such that the straight line B, connecting the guide sections 5b of the pair of counterweight guide rails 5, does not pass through the upper beam 22.Furthermore, when the elevator shaft 1 is viewed from above, part of the lower support 21 is arranged such that it is located in an area corresponding to the hoisting machine 7, with the upper support 22 and the pair of vertical supports 23 being arranged such that they are located completely outside the area corresponding to the hoisting machine 7.

[0031] Fig. Figure 5 is a side view illustrating the hoisting machine 7, the weight-side main rope end device 10 and the unit frame 24 of Fig. 2. The counterweight-side main rope end device 10 and the drive pulley 72 are arranged on opposite sides when viewed from surface B, which includes the guide areas 5b of the pair of counterweight guide rails 5. Specifically, when the elevator shaft 1 is viewed from above, as shown in Fig. As illustrated in Figure 2, the straight line B, which connects the guide areas 5b of the pair of counterweight guide rails 5, passes through the drive pulley 72 and the weight-side main rope end device 10. As a result, a moment applied to the pair of counterweight guide rails 5 by a load acting on the weight-side main rope end device 10 and a moment applied to the pair of counterweight guide rails 5 by a load acting on the drive pulley 72 are at least partially canceled out.

[0032] Part of the lower support 21 projects horizontally towards the side of the weight-side main rope end device 10, over a rear surface of the hoisting machine 7. Specifically, when the elevator shaft 1 is viewed from above, the part of the lower support 21 projects from the area belonging to the hoisting machine 7 in the direction of the weight-side main rope end device 10.

[0033] A method for constructing the hoisting machine 7 and the weight-side main rope end device 10 in the upper part of the elevator shaft 1 is now described. First, the hoisting machine 7 is attached to the lower support 21 of the unit frame 24 to create a hoisting machine unit obtained by integrating the hoisting machine 7 and the unit frame 24.

[0034] Then, after a hook of a block chain, which is a lifting device attached to the ceiling surface 1c of the elevator shaft 1, engages in an upper part of the hoisting unit, the block chain is operated to lift the hoisting unit while the hoisting unit is suspended by the block chain.

[0035] After the conveyor unit has reached a position for assembly, the unit frame 24 of the conveyor unit is attached to the pair of counterweight guide rails 5 by the lower mounting bases 25 and the lower mounting bases 26. Then the counterweight-side main rope end device 10 is attached to the upper support 22 of the unit frame 24.

[0036] Next, a work procedure for performing maintenance on the hoisting machine 7 is described. First, a maintenance engineer moves from the floor 6 of an upper floor to the top of car 2. The maintenance engineer, while on top of car 2, operates a maintenance control section located on the top of car 2 to move car 2 upwards at a low speed to a working position above the top floor. At the working position where car 2 is to stop, the distance from a working surface on the top of car 2 to the ceiling surface 1c of the hoist shaft 1 is equal to or greater than a reference distance of 2100 mm, as specified in European standard EN 81-20.

[0037] The maintenance engineer then performs maintenance on the hoisting machine 7 from the top of cabin 2. At this time, the maintenance engineer may also perform maintenance on the weight-side main rope end device 10, for example, adjustments to the nut 34. After the maintenance control section has been operated to move cabin 2 downwards at a low speed, the maintenance engineer, who is on the top of cabin 2, moves from the top of cabin 2 to the floor 6 of an upper level.

[0038] In the elevator device described above, the hoisting machine 7 is positioned directly above the movement range of the counterweight 3, and the counterweight-side main rope end device 10 is arranged such that its uppermost part is positioned higher than the position of the hoisting machine 7. This prevents the counterweight-side main rope end device 10 from obstructing the counterweight 3 in a position below the hoisting machine 7. In this way, the hoisting machine 7 can be positioned lower, closer to an upper limit of the counterweight 3's movement range, while maintaining the counterweight 3's range of motion.As a result, when the distance between the ceiling surface 1c of elevator shaft 1 and the working surface on the top of cabin 2 is equal to or greater than the reference distance, the maintenance engineer can easily access the hoist 7 from the top of cabin 2. This allows for maintenance work on the hoist 7. Furthermore, the hoist 7 can be positioned at the bottom to increase the distance from the ceiling surface 1c of elevator shaft 1 to the hoist 7 assembly point. Therefore, during assembly, the hoist 7 does not need to be positioned as close as possible to the ceiling surface 1c of elevator shaft 1.Accordingly, the conveyor 7 can be moved to the position of the superstructure while the upper part of the conveyor 7 is supported by the lifting device, without the need for a lifting structure that would support the underside of the conveyor. This also facilitates the assembly of the conveyor 7. Furthermore, the counterweight-side main rope end device 10 is positioned such that its uppermost part is located higher than the uppermost part of the conveyor 7. This allows the maintenance engineer to access the counterweight-side main rope end device 10 from the top of cabin 2, while avoiding the conveyor 7. Therefore, maintenance work on the counterweight-side main rope end device 10 can be easily performed from the top of cabin 2.

[0039] Furthermore, the unit frame 24, which includes the lower support 21 carrying the hoisting machine 7 and the upper support 22 supporting the counterweight-side main rope end device 10, is attached to the pair of counterweight guide rails 5. Thus, lifting and setting operations can be performed with the hoisting machine 7 attached to the unit frame 24. In this way, setting operations for the hoisting machine 7 and the counterweight-side main rope end device 10 can also be carried out.

[0040] Furthermore, when the elevator shaft 1 is viewed from above, the straight line B, which connects the pair of counterweight guide rails 5, runs between the drive pulley 72 and the counterweight-side main rope end device 10. Thus, the moment applied to the pair of counterweight guide rails 5 by a load acting on the counterweight-side main rope end device 10 and the moment applied to the pair of counterweight guide rails 5 by a load acting on the drive pulley 72 can at least partially cancel each other out. Therefore, the load borne by the pair of counterweight guide rails 5 can be reduced.

[0041] Furthermore, when the elevator shaft 1 is viewed from above, the portion of the lower support 21 that carries the hoisting machine 7 projects from the area corresponding to the hoisting machine 7 towards the counterweight-side main rope end device 10. Therefore, even if the main ropes 14 are set into vibration relative to the hoisting machine 7 by, for example, an earthquake or strong wind, the vibration of the main ropes 14 can be suppressed by the lower support 21 in such a way that it prevents the main ropes 14 and the counterweight-side main rope end device 10 from moving against the hoisting machine 7. As a result, even if the main ropes 14 are set into vibration, damage to the hoisting machine 7 can be avoided. Thus, a malfunction of the elevator device can be prevented.

[0042] Furthermore, each of the weight-side main rope attachment sections 12 comprises the stirrup bar 31, which is connected to the first end section 14a of the main rope 14, the receiving plate 32 provided to the stirrup bar 31, the spring 33, which on the main rope 14 receives the load applied to the receiving plate 32, and the nut 34 provided to the stirrup bar 31, which is configured to adjust the position of the receiving plate 32 relative to the stirrup bar 31. Thus, the main rope 14 can be secured with a simple configuration. Accordingly, the tension of each of the main ropes 14 can be adjusted simply by operating the nut 34.

[0043] Furthermore, when the hoisting machine 7 is viewed along the direction orthogonal to the area encompassed by the pair of counterweight guide rails 5, a portion of the counterweight-side main rope end device 10 is located in an area corresponding to the hoisting machine 7. Thus, the counterweight-side main rope end device 14 can be arranged such that at least a portion of it is located within the area of ​​the hoisting machine 7 in a direction opposite to each other (in this example, the depth direction of the elevator shaft 1). Consequently, space within the elevator shaft 1 can be utilized effectively.

[0044] Furthermore, when the elevator shaft 1 is viewed from above, the hoist 7 with the drive pulley 72 is oriented towards the cabin 2 and its axis is orthogonal to the straight line B connecting the pair of counterweight guide rails 5. Thus, when the elevator shaft 1 is viewed from above, the distance between the cabin 2 and the elevator shaft wall surface 1a can be reduced when the hoist 7 is positioned between the cabin 2 and the elevator shaft wall surface 1a. As a result, the horizontal average area of ​​the elevator shaft 1 can be reduced.

[0045] Although the conveyor machine 7 is arranged with the drive pulley 72 oriented towards the cabin 2 when the elevator shaft 1 is viewed from above, the conveyor machine 7 can be arranged in the example described above with the drive pulley 72 oriented towards the elevator shaft wall surface 1a, which is located on the side opposite the cabin 2.

[0046] Although the axis of the drive pulley 72 is orthogonal to the straight line B used by the pair of counterweight guide rails 5 when the elevator shaft 1 is viewed from above, the position of the drive pulley 72 described above is not limited to this. The axis of the drive pulley 72 can be oblique with respect to the straight line B connecting the pair of counterweight guide rails 5 when the elevator shaft 1 is viewed from above. Second embodiment

[0047] Fig. Figure 6 is a top side view illustrating a lifting device according to a second embodiment of the present invention. The hoisting machine 7 is supported on a lower support 21, with the weight-side main rope end device 10 being supported on the upper support 22.

[0048] The lower beam 21, the upper beam 22, specifically the plurality of beams 21 and 22, is attached to the pair of counterweight guide rails 5. The lower beam 21 is attached to the pair of counterweight guide rails 5 by the pair of lower mounting bases 25, the upper beam 22 being attached to the pair of counterweight guide rails 5 by the pair of upper mounting bases 26. Each of the lower mounting bases 25 is a support configured to accept a downward load applied by the lower beam 21. Each of the upper mounting bases 26 is a support configured to accept a downward load applied by the upper beam 22. The remaining configuration is the same as the configuration of the first embodiment.

[0049] In the elevator device described above, the lower support 21, which carries the hoisting machine 7, and the upper support 22, which carries the counterweight-side main rope end device 10, are individually attached to the pair of counterweight guide rails 5. Thus, the upper support 22 can be erected without affecting the position of the lower support 21. For example, the position of the counterweight-side main rope end device 10 relative to the hoisting machine 7 differs in a case where the hoisting machine 7 and the counterweight-side main rope end device 10 are located on the left side of the cabin 2, as viewed from the landing 6, as in the second embodiment, from the position of the hoisting machine 7 and the counterweight-side main rope end device 10 located on the right side of the cabin 2. However, the upper support 22 can still be erected without affecting the position of the lower support 21.Thus, regardless of whether the conveyor machine 7 and the weight-side main rope end device 10 are arranged on the left side of cabin 2 or the right side of cabin 2, the same components can be used for the lower girder 21 and the upper girder respectively. Third embodiment

[0050] Fig. Figure 7 is a top view illustrating a lifting device according to a third embodiment of the present invention. Furthermore, Fig. 8 An upper side view to illustrate the elevator mechanism in Fig. 7. The weight-side main rope end device 10 comprises a plurality of weight-side main rope anchor sections 121 and 122, to which the first end sections 14a of the plurality of main ropes 14 are individually connected. The plurality of weight-side main rope anchor sections 121 and 122 comprise first weight-side main rope anchor sections 121 and second weight-side main rope anchor sections 122. A configuration of each of the first weight-side main rope anchor sections 121 and the second weight-side main rope anchor sections 122 is the same as the configuration of the weight-side main rope anchor sections 12 in the first embodiment.

[0051] As in Fig. Figure 8 illustrates that the first weight-side main rope stop sections 121 are arranged such that their uppermost parts are positioned higher than the uppermost part of the hoisting machine 7. In this example, the receiving plate 32, the spring 33, and the nut 34 of each of the first weight-side main rope stop sections 121 are positioned higher than the uppermost part of the hoisting machine 7. Each of the second weight-side main rope stop sections 121 is arranged such that its uppermost part is positioned lower than the uppermost part of the hoisting machine 7.

[0052] The conveyor machine 7 is arranged in a position closer to another counterweight guide rail 5 (counterweight guide rail 5 on the left side in the Fig. 8) as to a counterweight guide rail 5 (counterweight guide rail 5 on the right side in the Fig. 8) of the pair of counterweight guide rails 5. With this arrangement described above, a maintenance space 30 is formed between the first counterweight guide rail 5 and the conveyor machine 7.

[0053] The second weight-side main rope anchor sections 122 are positioned closer to the maintenance space 30 than to the first weight-side main rope anchor sections 121. The maintenance space 30 allows access to a tool required for operating and adjusting the second weight-side main rope anchor sections 122. With the arrangement described above, when cabin 2 is stopped in the working position, the maintenance engineer, who is on the top edge of cabin 2, can access the second weight-side main rope anchor sections 122 through the maintenance space 30. Thus, maintenance work on the second weight-side main rope anchor sections 122 can be performed through the maintenance space 30.

[0054] The first weight-side main rope attachment sections 121 are arranged on a first upper beam 221, with the second weight-side main rope attachment sections 122 being arranged on a second upper beam 222. Furthermore, in the second embodiment, the hoisting machine 7 is supported on the lower beam 21. The first upper beam 221 is positioned higher than the second upper beam 222. The lower beam 21, the first upper beam 121, and the second upper beam 222 are independent beams, separated from one another. Specifically, the hoisting machine 7, the first weight-side main rope attachment sections 121, and the second weight-side main rope attachment sections 122 are supported independently by the plurality of beams 21, 221, and 222, which are separated from one another.

[0055] The lower beam 21, the first upper beam 221, and the second upper beam 222, specifically the plurality of beams 21, 221, and 222, are individually attached to the pair of counterweight guide rails 5. As in the second embodiment, the lower beam 21 is attached to the pair of counterweight guide rails 5 by the pair of lower mounting bases 25. The first upper beam 221 is attached to the pair of counterweight guide rails 5 by a pair of first upper mounting bases 221, and the second upper beam 222 is attached to the pair of counterweight guide rails 5 by a pair of second upper mounting bases 262. Each of the lower mounting bases 25 is a support configured to receive a downward load applied by the lower beam 21.Each of the first upper mounting bases 261 is a support configured to receive a downward load applied by the first upper beam 221, wherein each of the second upper mounting bases 262 is a support configured to receive a downward load applied by the second upper beam 222.

[0056] In this example, when the elevator shaft 1 is viewed from above, the straight line B, which connects the guide sections 5b of the pair of counterweight guide rails 5, and the axis line of the counterweight suspension disc 9 are parallel to each other. The remaining configuration is the same as the configuration of the second embodiment.

[0057] In the elevator device described above, the maintenance space 30 is formed between one of the counterweight guide rails 5 and the hoisting unit 7. The first counterweight-side main rope attachment sections 121 are arranged such that their uppermost parts are positioned higher than the uppermost part of the hoisting unit 7, while the second counterweight-side main rope attachment sections 122 are arranged such that their uppermost parts are positioned lower than the uppermost part of the hoisting unit 7. The second counterweight-side main rope attachment sections 122 are positioned closer to the maintenance space 30 than the first counterweight-side main rope attachment sections 121. Thus, the maintenance engineer, who is on the top edge of the cabin 2, can more easily access the second counterweight-side main rope attachment sections 122 through the maintenance space 30.Therefore, maintenance work on the weight-side main rope end device 10 can continue to be ensured.

[0058] Furthermore, the lower support 21, the first upper support 221, and the second upper support 222 are individually attached to the pair of counterweight guide rails 5. Thus, as in the second embodiment, the lower support 21, the first upper support 221, and the second upper support 222 can be assembled independently of one another. For example, regardless of whether the conveyor 7 and the weight-side main rope end device 10 are located on the left or right side of the cabin 2, the same components can be used for the lower support 21, the first upper support 221, and the second upper support 222. Fourth embodiment

[0059] Fig. Figure 9 is a top side view illustrating a lift device according to a fourth embodiment of the present invention. The unit frame 24, to which the hoisting machine 7 and the weight-side main rope end device 10 are attached, is attached to the pair of counterweight guide rails 5 and to the cabin guide rails 4, which guide the movement of the cabin 2. The unit frame 24 is attached to one of the pairs of cabin guide rails 4 that is arranged in a position closer to the counterweight guide rails 5.

[0060] A lower part of the unit frame 24 is attached to the pair of counterweight guide rails 5 and to one cabin guide rail 4 by the pair of lower mounting bases 25. The lower part of the unit frame 24 is attached to only one counterweight guide rail 5 by one of the lower mounting bases 25 and is attached to the other counterweight guide rail 5 and one cabin guide rail 4 by another of the lower mounting bases 25 simultaneously. An upper part of the unit frame 24 is attached to only one counterweight guide rail 5 by one of the upper mounting bases 26 and is attached to the other counterweight guide rail 5 and one cabin guide rail 4 by another of the upper mounting bases 26 simultaneously. The remaining configuration is the same as the configuration of the first embodiment.

[0061] In the elevator device described above, the unit frame 24, to which the hoisting machine 7 and the counterweight-side main rope end device 10 are attached, is fastened to the pair of counterweight guide rails 5 and to the car guide rail 5. Thus, the entire load applied to the unit frame 24 can be distributed and supported on and by the large number of guide rails, since two is the number of counterweight guide rails 5. This reduces the load exerted on each of the guide rails. Fifth embodiment

[0062] Fig. Figure 10 is a top view illustrating a lifting device according to a fifth embodiment of the present invention. Furthermore, Fig. 11 An upper side view to illustrate the elevator device of Fig. 10. The weight-side main rope end device 10 comprises the plurality of weight-side main rope anchor sections 121 and 122, to which the first end sections 14a of the plurality of main ropes 14 are individually attached. The plurality of weight-side main rope anchor sections 121 and 122 comprises the first weight-side main rope anchor section 121 and the second weight-side main rope anchor section 122. The configuration of each of the first weight-side main rope anchor sections 121 and the second weight-side main rope anchor sections 122 is the same as the configuration of each of the weight-side main rope anchor sections 12 in the first embodiment.

[0063] As in Fig. Figure 11 illustrates that the first weight-side main rope stop sections 121 are arranged such that their uppermost parts are positioned higher than the uppermost part of the hoisting machine 7. In this example, the receiving plate 32, the spring 33, and the nut 34 of each of the first weight-side main rope stop sections 121 are positioned higher than the uppermost part of the hoisting machine 7. Each of the second weight-side main rope stop sections 122 is arranged such that its uppermost part is positioned lower than the hoisting machine 7.

[0064] The first weight-side main rope attachment sections 121 are supported on the first upper beam 221, with the second weight-side main rope attachment sections 122 being supported on the second upper beam 222. Furthermore, in the third embodiment, the hoisting machine 7 is supported on the lower beam 21. The first upper beam 221 is positioned higher than the lower beam 21. The second upper beam 222 is positioned lower than the lower beam 21. As a result, the second weight-side main rope attachment sections 122 are positioned lower than the lower beam 21. The lower beam 21, the first upper beam 221, and the second upper beam 222 are independent beams that are separated from one another.Specifically, the conveyor 7, the first weight-side main rope stop sections 121, and the second weight-side main rope stop sections 122 are individually supported by the plurality of beams 21, 221, and 222, which are separated from one another. The lower beam 21, the first upper beam 221, and the second upper beam 222, specifically the plurality of beams 21, 221, and 222, are individually attached to the pair of counterweight guide rails 5. A structure for attaching the plurality of beams 21, 221, and 222 to the pair of counterweight guide rails 5 is the same structure as in the third embodiment.

[0065] As in Fig. As illustrated in Figure 10, the first weight-side main rope attachment sections 121 and the second weight-side main rope attachment sections 122 are arranged in a row, each in a row, along the straight line B connecting the guide area 5b of the pair of counterweight guide rails 5, when viewed from above the elevator shaft 1. Specifically, the weight-side main rope end device 10 comprises the row of first weight-side main rope attachment sections 121 and the row of second weight-side main rope attachment sections 122 as two rows, side by side in the direction orthogonal to the straight line B, as shown in Figure 10. Fig. Figure 10 illustrates this when the elevator shaft 1 is viewed from above. Furthermore, the first weight-side main rope anchor sections 121 are located closer to the elevator shaft wall surface 1a than the second weight-side main rope anchor sections 122 when the elevator shaft 1 is viewed from above. As a result, the second weight-side main rope anchor sections 122 are located closer to the car 2 than the first weight-side main rope anchor sections 121 when the elevator shaft 1 is viewed from above. Furthermore, when the elevator shaft 1 is viewed from above, as shown in Figure 10, the elevator shaft 1 is located closer to the car 2 than the first weight-side main rope anchor sections 121. Fig.As illustrated in Figure 10, the first weight-side main rope attachment sections 121 are arranged outside the area corresponding to the lifting machine 7, while the second weight-side main rope attachment sections 122 are arranged such that they are located in the area corresponding to the conveying machine 7. The remaining configuration is the same as the configuration in the third embodiment.

[0066] In an elevator device comprising cabin 2, which has an increased size and an increased number of main ropes 14, the number of weight-side main rope attachment points of the weight-side main rope end device 10 is increased. Thus, if all the weight-side main rope attachment points are arranged in a single row, the angle of attack of each of the main ropes 14 relative to the weight suspension pulley 9 becomes significantly large, leading to a problem of reduced service life of the main ropes 14. Therefore, when the number of main ropes 14 is increased, the multiple weight-side main rope attachment points are sometimes arranged in two rows, specifically one row closer to cabin 2 and one row further away from cabin 2.If the multiple weight-side main rope anchor sections are arranged in two rows, it becomes difficult to access, from the top of cabin 2, those weight-side main rope anchor sections located further away from cabin 2, as viewed from cabin 2. As a result, maintenance work on the weight-side main rope anchor sections becomes laborious and time-consuming. Alternatively, all the weight-side main rope anchor sections of the weight-side main rope end device 10 can be positioned higher than the top of the hoist 7 to ensure access from the top of cabin 2. However, in this case, the weight-side main rope anchor sections are arranged in two rows. Therefore, the distance between the elevator shaft wall surface 1a and the hoist 7 must be increased.

[0067] On the other hand, in a lifting device according to the fifth embodiment, the first weight-side main rope attachment sections 121 are arranged such that their uppermost parts are positioned higher than the uppermost part of the hoisting machine 7, while the second weight-side main rope attachment sections 122 are arranged such that their uppermost parts are positioned lower than the hoisting machine 7. This simplifies access to the first weight-side main rope attachment sections 121 from a position above the hoisting machine 7, and also simplifies access to the second weight-side main rope attachment sections 122 from a position below the hoisting machine 7. In this way, maintenance work on the weight-side main rope end device 10 can be easily carried out in front of the upper edge of the cabin 2.Furthermore, the second weight-side main rope attachment sections 121 can be arranged in positions closer to the cabin 2 without obstructing the hoisting machine 7 at a position below it. Thus, even if the first weight-side main rope attachment sections 121 and the second weight-side main rope attachment sections 122 are arranged in two rows, corresponding to the row of first weight-side main rope attachment sections 121 and the row of second weight-side main rope attachment sections 122 respectively, when the elevator shaft 1 is viewed from above, the first weight-side main rope attachment sections 121 and the second weight-side main rope attachment sections 122 can be arranged in the elevator shaft 1 without increasing the distance between the elevator shaft wall surface 1a and the hoisting machine 7. Furthermore, if the number of main ropes 14 is increased, the cabin 2 is enlarged.This allows the distance between the pair of counterweight guide rails 5 to be increased. In this way, the width of the counterweight 3 is increased to allow for a reduction in its height. Therefore, the vertical range of motion of the counterweight 3 can be ensured.

[0068] Although each of the lower supports 21 and the upper support 22 is individually attached to the pair of counterweight guide rails 5 in the second embodiment, both the lower support 21 and the upper support 22 can be individually attached to the pair of counterweight guide rails 5 and to the single cabin guide rail 4, as in the fourth embodiment. With the configuration described above, the load exerted on each of the guide rails can also be reduced.

[0069] Furthermore, although each of the lower supports 21, the first upper supports 221, and the second upper supports 222 are individually attached to the pair of counterweight guide rails 5 in the third and fifth embodiments, each of the lower supports 21, the first upper supports 221, and the second upper supports 222 can also be individually attached to the pair of counterweight guide rails 5 and to the single cabin guide rail 4, as in the fourth embodiment. In this way, too, the load exerted on each guide rail can be reduced.

[0070] Furthermore, although each of the lower beams 21, the first upper beam 221, and the second upper beam 222 are individually attached to the pair of counterweight guide rails 5 in the third and fifth embodiments, the attachment to the pair of counterweight guide rails 5 is not limited to this. As in the first embodiment, the unit frame comprising the lower beam 21, the first upper beam 221, and the second upper beam 222, and the pair of vertical supports connecting the lower beam 21, the first upper beam 221, and the second upper beam 222, can be attached to the pair of counterweight guide rails 5. In this way, the lifting and assembly work can be performed with the conveyor 7 mounted in the unit frame. Therefore, the assembly work for the conveyor 7 and the weight-side main rope end device 10 can be further ensured.

[0071] Furthermore, when the unit frame is attached to the pair of counterweight guide rails 5 in the third embodiment and the fifth embodiment, the unit frame can be attached to the pair of counterweight guide rails 5 and the single cabin guide rail 4, as in the fourth embodiment.

[0072] Furthermore, although the hoisting machine 7 is arranged with the drive pulley 72 oriented towards the side of the cabin 2 and the drive unit main body 71 oriented towards the elevator shaft wall surface 1a when the elevator shaft 1 is viewed from above, the arrangement of the hoisting machine 7 is not limited to this in any of the embodiments described above. The hoisting machine 7 can be arranged with the drive pulley 72 oriented towards the side of the elevator shaft wall surface 1a and the drive unit main body 71 oriented towards the cabin 2 when the elevator shaft 1 is viewed from above.

Claims

[1] Lifting device comprising: a cabin (2) and a counterweight (3) configured to be movable in a vertical direction in an elevator shaft (1); a pair of counterweight guide rails (5) provided in the elevator shaft (1) and configured to guide a movement of the counterweight; a drive device (7) comprising a drive disc (72) and configured to generate a driving force for movement of the cabin and counterweight (3); a weight-side main rope end device (10) comprising a weight-side main rope stop section (12) and provided in an upper part of the elevator shaft (1); a cabin-side main rope end device (11) comprising a cabin-side main rope stop section (13) and provided in the upper part of the elevator shaft (1); a main rope (14) having a first end section (14a) connected to the weight-side main rope anchor section (12) and a second end section (14b) connected to the cabin-side main rope anchor section (13), and configured to suspend the cabin (2) and the counterweight (3) in a state of being moved around the drive pulley (72); and a unit frame (24) comprising a lower support (21) configured to support the drive device (7) and an upper support (22) configured to support the weight-side main rope end device (10) as a plurality of supports, and comprising a pair of vertical columns (23) configured to connect the lower support (21) and the upper support (22), the unit frame (24) being attached to the pair of counterweight guide rails (5), wherein the drive device (7) is arranged directly above a movement range of the counterweight (3) and is arranged such that it is located outside an area corresponding to the cabin (2) when the elevator shaft (1) is viewed from above, and wherein the weight-side main rope end device (10) is arranged such that an uppermost part of the weight-side main rope end device (10) is arranged at a position higher than a position of an uppermost part of the drive device (7), and wherein, when the drive device (7) is viewed along a direction orthogonal to a surface connecting the pair of counterweight guide rails (5), a part of the weight-side main rope end device (10) is arranged in an area corresponding to the drive device (7). [2] Lifting device comprising: a cabin (2) and a counterweight (3) configured to be movable in a vertical direction in the elevator shaft (1); a pair of counterweight guide rails (5) provided in the elevator shaft (1) and configured to guide a movement of the counterweight; a drive device (7) comprising a drive disc (72) and configured to generate a driving force for movement of the cabin and counterweight (3); a weight-side main rope end device (10) comprising a weight-side main rope stop section (12) and provided in an upper part of the elevator shaft (1); a cabin-side main rope end device (11) comprising a cabin-side main rope stop section (13) and provided in the upper part of the elevator shaft (1); and a main rope (14) having a first end section (14a) connected to the weight-side main rope anchor section (12) and a second end section (14b) connected to the cabin-side main rope anchor section (13) and configured to suspend the cabin (2) and the counterweight (3) in a state of being moved around the drive pulley (72), wherein the drive device (7) is provided directly above the range of motion of the counterweight (3) and is arranged so that it is located outside an area corresponding to the cabin (2) when the elevator shaft (1) is viewed from above, wherein the weight-side main rope end device (10) is arranged such that an uppermost part of the weight-side main rope end device (10) is arranged at a position higher than a position of an uppermost part of the drive device (7), wherein the cabin (2) and the counterweight (3) are suspended by a plurality of the main ropes (14), wherein the weight-side main rope end device (10) comprises a plurality of weight-side main rope attachment sections (121, 122) to which the first end sections (14a) of the plurality of main ropes (14) are individually connected, wherein the plurality of weight-side main rope anchor sections (121, 122) comprises a first weight-side main rope anchor section (121) and a second weight-side main rope anchor section (122), wherein the first weight-side main rope attachment section (121) is arranged such that an uppermost part of the first weight-side main rope attachment section (121) is arranged at a position higher than the position of the uppermost part of the drive device (7), wherein the second weight-side main rope attachment section (122) is arranged such that an uppermost part of the second weight-side main rope attachment section (122) is arranged in a position lower than the position of the uppermost part of the drive device (7), wherein a maintenance space (30) is provided between one of the pairs of counterweight guide rails (5) and the drive device (7) by arranging the drive device (7) in a position closer to another pair of counterweight guide rails (5) than to the one pair of counterweight guide rails (5), and wherein the second weight-side main rope attachment section (122) is located in a position closer to the maintenance room (30) than the first weight-side main rope attachment section (121). [3] Lifting device comprising: a cabin (2) and a counterweight (3) configured to be movable in a vertical direction in the elevator shaft (1); a pair of counterweight guide rails (5) provided in the elevator shaft (1) and configured to guide a movement of the counterweight; a drive device (7) comprising a drive disc (72) and configured to generate a driving force for movement of the cabin and counterweight (3); a weight-side main rope end device (10) comprising a weight-side main rope stop section (12) and provided in an upper part of the elevator shaft (1); a cabin-side main rope end device (11) comprising a cabin-side main rope stop section (13) and provided in the upper part of the elevator shaft (1); and a main rope (14) having a first end section (14a) connected to the weight-side main rope anchor section (12) and a second end section (14b) connected to the cabin-side main rope anchor section (13) and configured to suspend the cabin (2) and the counterweight (3) in a state of being moved around the drive pulley (72), wherein the drive device (7) is provided directly above the range of motion of the counterweight (3) and is arranged so that it is located outside an area corresponding to the cabin (2) when the elevator shaft (1) is viewed from above, wherein the weight-side main rope end device (10) is arranged such that an uppermost part of the weight-side main rope end device (10) is arranged at a position higher than a position of an uppermost part of the drive device (7), wherein the cabin (2) and the counterweight (3) are suspended by a plurality of the main ropes (14), wherein the weight-side main rope end device (10) comprises a plurality of weight-side main rope attachment sections (121, 122) to which the first end sections (14a) of the plurality of main ropes (14) are individually connected, wherein the plurality of weight-side main rope anchor sections (121, 122) comprises a first weight-side main rope anchor section (121) and a second weight-side main rope anchor section (122), wherein the first weight-side main rope attachment section (121) is arranged such that an uppermost part of the first weight-side main rope attachment section (121) is arranged at a position higher than the position of the uppermost part of the drive device (7), wherein the second weight-side main rope attachment section (122) is arranged such that an uppermost part of the second weight-side main rope attachment section (122) is arranged in a position lower than the position of the uppermost part of the drive device (7), and wherein the second weight-side main rope anchor section (122) is located in a position closer to the cabin (2) than the first weight-side main rope anchor section (121) when the elevator shaft (1) is viewed from above. [4] Lifting device according to claim 2 or 3, further comprising a unit frame comprising a plurality of supports (21, 221, 222) configured to individually support the first weight-side main rope stop section (121), the second weight-side main rope stop section (122) and the drive device (7) and which is attached to the pair of counterweight guide rails (7). [5] Lifting device according to claim 2 or 3, wherein the first weight-side main rope attachment section (121), the second weight-side main rope attachment section (122) and the drive device (7) are individually supported by a plurality of supports (21, 221, 222), and wherein each of the multiple supports (21, 221, 222) is individually attached to the pair of counterweight guide rails (5). [6] Lifting device according to claim 1 or 4, wherein the unit frame (24) is additionally attached to a cabin guide rail (4) configured to guide a movement of the cabin (2). [7] Lifting device according to claim 5, wherein the plurality of supports (21, 221, 222; 21, 22) are additionally attached to a cabin guide rail (4) configured to guide a movement of the cabin (2). [8] Lifting device according to any one of claims 4 to 7, wherein, when the lift shaft (1) is viewed from above, a straight line connecting the pair of counterweight guide rails (5) runs between the drive pulley (72) and the weight-side main rope end device (10). [9] Lifting device according to any one of claims 4 to 8, wherein, when the lift shaft (1) is viewed from above, one of the plurality of supports (21, 221, 222; 21, 22) configured to support the drive device (7) projects from a region corresponding to the drive device (7) in the direction of the weight-side main rope end device (10). [10] Lifting device according to any one of claims 1 to 9, wherein the weight-side main rope stop section (12) comprises a stirrup bar (31) connected to the first end section (14a), an elastic element receiving section (32) provided to the stirrup bar (31), an elastic element (33) configured to receive a load applied to the main rope (14) by the elastic element receiving section (32), and an adjuster (34) provided to the stirrup bar (31) and configured to adjust a position of the elastic element receiving section (32) relative to the stirrup bar (31). [11] Lifting device according to any one of claims 2 to 10, wherein, when the drive device (7) is viewed along a direction orthogonal to a surface connecting the pair of counterweight guide rails (5), a part of the weight-side main rope end device (10) is arranged in an area corresponding to the drive device (7). [12] Lifting device according to one of claims 1 to 11, wherein, when the lift shaft (1) is viewed from above, the drive device (7) with the drive disc (72) is oriented towards the cabin and arranged with an axis line of the drive disc (72) orthogonal to the straight line connecting the pair of counterweight guide rails (5).

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