Elevator Equipment

By adopting a design including drive bearings, balance weight body and deflection device in the elevator equipment, the layout of the winch device is optimized to reduce the size of the elevator shaft, which solves the problem that the elevator shaft space cannot be effectively saved in traditional elevator equipment, and the optimization of the elevator shaft size is achieved.

JP7657356B1Active Publication Date: 2025-04-04MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP

Patent Information

Application Number
JP2024093013
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-04-04
Estimated Expiration
2044-06-07

AI Technical Summary

Technical Problem

In traditional elevator equipment, the adjustment of the lateral position of the counterweight side hook portion will cause the horizontal dimension of the elevator shaft to increase, and the vertical dimension may also increase, which will not effectively save the space of the elevator shaft.

Method used

Using a design including elevator equipment, balance weight body, drive bearings and drive devices, the vertical movement of the elevator and balance weight is achieved by providing the first and second winch devices on the top of the elevator shaft and sequentially connecting the suspension rigging from the first winch device to the second winch device using a deflection device, thereby realizing the vertical movement of the elevator and balance weight, while optimizing the layout of the winch device to reduce the size of the elevator shaft.

Benefits of technology

By optimizing the layout of the winch device and the design of the deflection device, the horizontal and vertical dimensions of the elevator shaft can be effectively reduced, thereby achieving space savings.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided is an elevator device capable of saving space in a hoistway. [Solution] In the elevator device, the deflector 8 is disposed at a lower position than the hoist 5 in the upper part of the hoistway 1. The deflector 8 has a first winding part 81 and a second winding part 82. The suspension body 9 that suspends the car 2 and the counterweight 3 is wound from the first cleat device 6, through the car hoist 22 of the car 2, the driving sheave 52 of the hoist 5, the counterweight hoist 32 of the counterweight 3, the first winding part 81, and the second winding part 82 in this order, and reaches the second cleat device 7. The first winding part 81 is disposed at a position where at least a part of it overlaps with the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. The second winding part 82 is disposed at a position outside the area of ​​the counterweight 3 when the hoistway 1 is viewed from above.
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Description

[Technical field]

[0001] The present disclosure relates to elevator systems. [Background technology]

[0002] Patent Document 1 discloses an elevator device in which a counterweight side rope stopper is provided on a hoist support beam on which the hoist is mounted. The counterweight side rope stopper is located at a position horizontally offset from the position of the hoist. The counterweight side end of the rope that suspends the car and the counterweight is connected to the counterweight side rope stopper. The counterweight ascends and descends within a range of ascending and descending set below the counterweight side rope stopper. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5805212 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional elevator device disclosed in Patent Document 1, the counterweight ascends and descends within a range of ascent and descent set below the counterweight side rope stopper. Therefore, if the counterweight side rope stopper is disposed at a position horizontally shifted from the position of the hoist, the position of the counterweight's ascending and descending range will also be horizontally shifted from the position of the hoist. This may result in an increase in the horizontal dimension of the hoistway. Furthermore, if the counterweight side rope stopper is disposed below the hoist to avoid an increase in the horizontal dimension of the hoistway, the vertical dimension of the hoistway may increase. Therefore, it is not possible to save space in the hoistway.

[0005] The present disclosure is devised to solve the above-mentioned problems, and aims to provide an elevator device that can save space in the hoistway. [Means for solving the problem]

[0006] The elevator apparatus according to the present disclosure includes a car having a car body and a car hoisting wheel provided on the car body, a counterweight having a counterweight body and a counterweight hoisting wheel provided on the counterweight body, a drive device that has a drive sheave and is disposed at the top of the hoistway and generates a drive force for moving the car and the counterweight in the vertical direction, a first cleat device and a second cleat device that are disposed at the top of the hoistway, and a first winding portion and a second winding portion that are disposed at a position lower than the drive device in the top of the hoistway. The elevator shaft is provided with a deflection device connected to each of the first and second cleat devices, and is wound around the car hoist, drive sheave, counterweight hoist, first winding section, and second winding section in that order from the first cleat device to the second cleat device, and a suspension body for suspending the car and counterweight, wherein the first winding section is positioned at a position at least partially overlapping the area of ​​the counterweight when the elevator shaft is viewed from above, and the second winding section is positioned at a position outside the area of ​​the counterweight when the elevator shaft is viewed from above. Effect of the Invention

[0007] According to the elevator device according to the present disclosure, it is possible to reduce the space required for the elevator shaft. [Brief description of the drawings]

[0008] [Figure 1] 1 is a configuration diagram that illustrates an elevator device according to a first embodiment. [Diagram 2] FIG. 2 is a side view showing a main part of the elevator device of FIG. [Diagram 3] FIG. 3 is a perspective view showing a main part of the elevator device of FIG. 2. [Figure 4] FIG. 11 is a side view showing a main part of an elevator apparatus according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The embodiments for carrying out the subject of the present disclosure will be described with reference to the attached drawings. In each drawing, the same or corresponding parts are given the same reference numerals, and duplicated descriptions are appropriately simplified or omitted. Note that the subject of the present disclosure is not limited to the following embodiments, and any component of the embodiment may be modified or omitted within the scope of the gist of the present disclosure.

[0010] Embodiment 1 FIG. 1 is a schematic diagram of an elevator device according to a first embodiment. FIG. 2 is a side view showing a main part of the elevator device of FIG. 1. FIG. 3 is a perspective view showing a main part of the elevator device of FIG. 2. A pair of car guide rails 10 and a pair of counterweight guide rails 11 are provided in a hoistway 1. Each of the car guide rails 10 and each of the counterweight guide rails 11 are both arranged along the vertical direction. The distance between the pair of car guide rails 10 is greater than the distance between the pair of counterweight guide rails 11.

[0011] As shown in Fig. 1, the car 2 is disposed between a pair of car guide rails 10. The car 2 is movable in the vertical direction along the pair of car guide rails 10. The pair of car guide rails 10 guide the movement of the car 2 in the vertical direction.

[0012] The car 2 has a car body 21 and a pair of car hoisting wheels 22. The pair of car hoisting wheels 22 are provided on the lower part of the car body 21.

[0013] The counterweight 3 is disposed between a pair of counterweight guide rails 11. The counterweight 3 is movable in the vertical direction along the pair of counterweight guide rails 11. The pair of counterweight guide rails 11 guide the movement of the counterweight 3 in the vertical direction.

[0014] The counterweight 3 has a counterweight main body 31 and a counterweight hoisting wheel 32. The counterweight hoisting wheel 32 is provided on the upper part of the counterweight main body 31.

[0015] As shown in Fig. 2, a first wall surface 1a and a second wall surface 1b are formed on the inner wall surface of the hoistway 1. The first wall surface 1a and the second wall surface 1b face each other in a set reference direction, which is a specific horizontal direction set in the hoistway 1. In this embodiment, the depth direction of the hoistway 1 is the set reference direction. Therefore, in this embodiment, the first wall surface 1a and the second wall surface 1b facing each other in the depth direction of the hoistway 1 are formed on the inner wall surface of the hoistway 1.

[0016] The first wall surface 1a is provided with a landing entrance (not shown) on each floor of the building. The car 2 can stop at each floor. When the car 2 stops at a floor, a car entrance (not shown) provided on the car body 21 faces the landing entrance. At the floor where the car 2 is stopped, passengers can move between the car 2 and the landing through the car entrance and the landing entrance.

[0017] As shown in Figures 2 and 3, the pair of counterweight guide rails 11 face each other in the set reference direction, i.e., the depth direction of the hoistway 1. The pair of car guide rails 10 face each other in the width direction of the hoistway 1. The width direction of the hoistway 1 is a horizontal direction perpendicular to the depth direction of the hoistway 1. Note that Figures 2 and 3 show only one of the pair of car guide rails 10. When the hoistway 1 is viewed from above, the counterweight 3 is located next to the car 2 in the width direction of the hoistway 1.

[0018] Of the pair of counterweight guide rails 11, the distance from the counterweight guide rail 11 closer to the first wall surface 1a to the first wall surface 1a is greater than the distance from the counterweight guide rail 11 closer to the second wall surface 1b to the second wall surface 1b. The position of the upper end of the counterweight guide rail 11 closer to the first wall surface 1a is lower than the position of the upper end of the counterweight guide rail 11 closer to the second wall surface 1b. The pair of car guide rails 10 are disposed at a position closer to the first wall surface 1a than the pair of counterweight guide rails 11. Of the pair of car guide rails 10, one car guide rail 10 is disposed at a position closer to the pair of counterweight guide rails 11 than the other car guide rail 10.

[0019] A support beam 4 is disposed at the top of the hoistway 1 as a support structure. The support beam 4 is attached to one car guide rail 10 on the side closer to the counterweight guide rail 11 and to the pair of counterweight guide rails 11 via mounting members (not shown). As a result, the support beam 4 is supported by the one car guide rail 10 and the pair of counterweight guide rails 11. The support beam 4 is disposed along the depth direction of the hoistway 1. A counterweight lifting range is set below the support beam 4. The counterweight 3 is movable up and down within the counterweight lifting range.

[0020] One end of the support beam 4 is located closer to the first wall surface 1a than the pair of counterweight guide rails 11. The other end of the support beam 4 is located closer to the second wall surface 1b than the pair of counterweight guide rails 11. The support beam 4 extends from one end of the support beam 4 through each of the pair of counterweight guide rails 11 to the other end of the support beam 4. As a result, when the support beam 4 is viewed along the width direction of the elevator shaft 1, the support beam 4 protrudes from the range between the pair of counterweight guide rails 11 toward each of the first wall surface 1a and the second wall surface 1b.

[0021] A hoisting machine 5 is supported on the support beam 4. The hoisting machine 5 is placed on the upper surface of the support beam 4. The hoisting machine 5 is disposed above the counterweight lifting range. As a result, when the hoistway 1 is viewed from above, at least a portion of the hoisting machine 5 overlaps the area of ​​the counterweight 3.

[0022] The hoist 5 is a drive device that generates a drive force for vertically moving the car 2 and the counterweight 3. The hoist 5 has a drive device main body 51 and a drive sheave 52.

[0023] The drive sheave 52 is rotatably provided in a drive device body 51. The drive device body 51 has a motor. The motor of the drive device body 51 generates a drive force that rotates the drive sheave 52.

[0024] As shown in FIG. 1, a first cleat device 6 and a second cleat device 7 are arranged at the top of the hoistway 1. The first cleat device 6 is attached to the other car guide rail 10 on the side farther from the pair of counterweight guide rails 11. The second cleat device 7 is attached to the support beam 4 as shown in FIGS. 2 and 3. As a result, the first cleat device 6 is supported by the other car guide rail 10, and the second cleat device 7 is supported by the support beam 4. The hoisting machine 5 and the second cleat device 7 are supported by the common support beam 4. As a result, at least a portion of the second cleat device 7 is arranged at a position higher than the lower end of the hoisting machine 5.

[0025] The second cleat device 7 is disposed at a position outside the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. In this embodiment, the second cleat device 7 is disposed at a position outside the range between the pair of counterweight guide rails 11 in the depth direction of the hoistway 1. Also, in this embodiment, as shown in FIG. 2, the second cleat device 7 is disposed at a position outside the range between the pair of counterweight guide rails 11 toward the side closer to the first wall surface 1a. Furthermore, in this embodiment, the second cleat device 7 is disposed at a position closer to the first wall surface 1a than the position of the pair of car guide rails 10.

[0026] The support beam 4 is provided with a deflection device 8. The deflection device 8 is disposed at a position lower than the hoisting machine 5 in the upper part of the hoistway 1.

[0027] The deflector 8 has a first winding portion 81 and a second winding portion 82. The first winding portion 81 and the second winding portion 82 are attached to the support beam 4. The first winding portion 81 and the second winding portion 82 are disposed at positions spaced apart from each other in the depth direction of the elevator shaft 1. The height dimensions of the first winding portion 81 and the second winding portion 82 are smaller than the height dimension of the second cleat device 7. In this embodiment, two fixed shafts fixed to the support beam 4 are used as the first winding portion 81 and the second winding portion 82. A plurality of grooves are provided on the outer periphery of each fixed shaft along the circumferential direction of the fixed shaft.

[0028] The first winding part 81 is disposed at a position where at least a portion overlaps with the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. The first winding part 81 is also disposed below the hoisting machine 5. As a result, the first winding part 81 is disposed at a position where at least a portion overlaps with the area of ​​the hoisting machine 5 when the hoistway 1 is viewed from above. The first winding part 81 is disposed above the counterweight lifting range. The position of the first winding part 81 in the depth direction of the hoistway 1 is between a pair of counterweight guide rails 11.

[0029] The second winding part 82 is disposed at a position outside the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. The second winding part 82 is disposed below the second cleat device 7. In this embodiment, the second winding part 82 is disposed at a position outside the range between the pair of counterweight guide rails 11 in the depth direction of the hoistway 1. In this embodiment, the second winding part 82 is disposed at a position outside the range between the pair of counterweight guide rails 11 toward the side closer to the first wall surface 1a. In this embodiment, the second winding part 82 is disposed at a position closer to the first wall surface 1a than the position of the pair of car guide rails 10.

[0030] The car 2 and the counterweight 3 are suspended in the hoistway 1 by a plurality of suspension bodies 9. The suspension bodies 9 are formed of ropes or belts. One end of the suspension body 9 is connected to the first cleat device 6. The other end of the suspension body 9 is connected to the second cleat device 7.

[0031] The suspension body 9 is wound around the pair of car hoisting sheaves 22, the drive sheave 52, the counterweight hoisting sheave 32, the first winding portion 81, and the second winding portion 82 in this order from the first cleat device 6, and reaches the second cleat device 7. Therefore, the suspension system of the car 2 and the counterweight 3 by the suspension body 9 is a 2:1 roping system.

[0032] The suspended body 9 that reaches the deflector 8 from the counterweight sheave 32 is wound around the first winding portion 81 and the second winding portion 82 in this order, and reaches the second cleat device 7. As a result, the deflector 8 changes the direction of the trajectory of the suspended body 9 that extends upward from the counterweight sheave 32, and guides the suspended body 9 to the second cleat device 7. The suspended body 9 is wound around the first winding portion 81 and the second winding portion 82 along the grooves of the fixed shafts used as the first winding portion 81 and the second winding portion 82, respectively. As a result, the suspended body 9 is prevented from coming off the first winding portion 81 and the second winding portion 82, respectively.

[0033] The car 2 and the counterweight 3 move up and down as the drive sheave 52 rotates due to the driving force of the hoist 5. The car 2 moves up and down while being guided by a pair of car guide rails 10. The counterweight 3 moves up and down while being guided by a pair of counterweight guide rails 11.

[0034] The car 2 and the counterweight 3 move in opposite directions due to the rotation of the drive sheave 52. As a result, the position of the counterweight 3 is at its lowest position when the car 2 is stopped on the top floor of the building, and at its highest position when the car 2 is stopped on the bottom floor of the building. Therefore, the counterweight lifting range is the vertical range from the lowest position to the highest position of the counterweight 3.

[0035] In such an elevator device, the suspension body 9 is wound around the first cleat device 6, the car sheave 22, the driving sheave 52, the counterweight sheave 32, the first winding part 81, and the second winding part 82 in this order, and reaches the second cleat device 7. The first winding part 81 is disposed at a position overlapping the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. The second winding part 82 is disposed at a position outside the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. Therefore, the suspension body 9 from the counterweight sheave 32 to the second cleat device 7 can be guided to a position outside the area of ​​the counterweight 3 when the hoistway 1 is viewed from above. This allows the second cleat device 7 to be disposed at a position outside the area of ​​the counterweight 3 when the hoistway 1 is viewed from above.

[0036] Therefore, the horizontal position of the counterweight 3 relative to the hoisting machine 5 can be determined regardless of the position of the second cleat device 7, and the amount of horizontal deviation of the counterweight 3 relative to the position of the hoisting machine 5 can be reduced. As a result, in this embodiment, the position of the counterweight 3 in the depth direction of the hoistway 1 can be brought closer to the first wall surface 1a. Therefore, the dimension of the hoistway 1 in the horizontal direction can be reduced.

[0037] In addition, since the first winding part 81 can be simply configured so that the suspension body 9 is wound around it, the height of the first winding part 81 can be made smaller than the height of the second cleat device 7. This makes it possible to reduce the vertical dimension of the hoistway 1 compared to when the second cleat device 7 is disposed below the hoisting machine 5.

[0038] Furthermore, the position of the second cleat device 7 can be freely determined by adjusting the positions of the first winding portion 81 and the second winding portion 82. This allows the second cleat device 7 to be placed in an empty space in the hoistway 1 where no equipment is placed. For example, as in this embodiment, the second cleat device 7 can be placed in the empty space between the counterweight guide rail 11 on the side closer to the first wall surface 1a and the first wall surface 1a.

[0039] Therefore, it is possible to reduce the size of the hoistway 1 while preventing an increase in the dimensions of the hoistway 1. As a result, it is possible to reduce the space required for the hoistway 1.

[0040] Moreover, the pair of counterweight guide rails 11 face each other in the depth direction of the hoistway 1, which is the set reference direction. The second cleat device 7 is disposed at a position outside the range between the pair of counterweight guide rails 11 in the depth direction of the hoistway 1. This makes it possible to more reliably ensure that there is free space for arranging the second cleat device 7, and further reliably reduce the space required for the hoistway 1.

[0041] In addition, the hoisting machine 5 and the second cleat device 7 are supported by a common support beam 4. Therefore, the number of parts supporting the hoisting machine 5 and the second cleat device 7, respectively, can be reduced.

[0042] Furthermore, at least a portion of the second cleat device 7 is disposed at a position higher than the lower end of the hoisting machine 5. Therefore, at least a portion of the second cleat device 7 can be disposed within the range of the hoisting machine 5 in the vertical direction. This makes it possible to further reduce the space required for the hoistway 1 in the vertical direction.

[0043] Embodiment 2 Fig. 4 is a side view showing a main part of an elevator device according to embodiment 2. Fig. 4 is a view corresponding to Fig. 2 in embodiment 1. In hoistway 1, a first support beam 41 is arranged as a first support member, and a second support beam 42 is arranged as a second support member. The first support beam 41 and the second support beam 42 are included in a support structure that supports the hoisting machine 5 and the second cleat device 7.

[0044] The first support beam 41 and the second support beam 42 are separate beams. The first support beam 41 and the second support beam 42 are disposed at positions spaced apart from each other in the hoistway 1. The second support beam 42 is disposed at a lower position than the first support beam 41 in the upper portion of the hoistway 1.

[0045] The first support beam 41 is attached to each of the pair of counterweight guide rails 11 via attachment members (not shown). As a result, the first support beam 41 is supported by the pair of counterweight guide rails 11.

[0046] The second support beam 42 is attached via mounting members (not shown) to one of the counterweight guide rails 11 on the side closer to the first wall surface 1a and one of the car guide rails 10 on the side closer to the counterweight guide rail 11. As a result, the second support beam 42 is supported by one of the counterweight guide rails 11 and one of the car guide rails 10.

[0047] The first support beam 41 supports the hoisting machine 5. The second support beam 42 supports the second cleat device 7. In this embodiment, the second cleat device 7 is disposed at a lower position than the hoisting machine 5. The first winding portion 81 and the second winding portion 82 of the deflection device 8 are attached to the second support beam 42. The other configurations are similar to those of the first embodiment.

[0048] In this elevator device, a first support beam 41 and a second support beam 42 are disposed at positions spaced apart from each other in the hoistway 1. The first support beam 41 supports the hoisting machine 5. The second support beam 42 supports the second cleat device 7. Therefore, the position of the second support beam 41 supporting the second cleat device 7 can be adjusted independently of the first support beam 41. This further improves the degree of freedom in the position of the second cleat device 7.

[0049] In the second embodiment, the second cleat device 7 is disposed at a lower position than the hoisting machine 5. However, at least a portion of the second cleat device 7 may be disposed at a higher position than the lower end of the hoisting machine 5. In this way, at least a portion of the second cleat device 7 can be disposed within the range of the hoisting machine 5 in the vertical direction, thereby further reducing the space required for the hoistway 1 in the vertical direction.

[0050] In the second embodiment, the second support beam 42 is supported by each of the one counterweight guide rail 11 and the one car guide rail 10. However, the second support beam 42 may be supported by only one car guide rail 10. In this way, the counterweight guide rail 11 does not need to support the second support beam 42, and the vertically downward load supported by the counterweight guide rail 11 can be reduced. Therefore, the cross-sectional area of ​​the counterweight guide rail 11 can be reduced. That is, in the second embodiment, the first support beam 41 and the second support beam 42 may be supported by different guide rails of the pair of car guide rails 10 and the pair of counterweight guide rails 11. In this way, the load received from the first support beam 41 and the load received from the second support beam 42 can be shared and supported by the different guide rails. Therefore, at least one of the car guide rails 10 and the counterweight guide rails 11 can be reduced in size.

[0051] Also, in each of the above-described embodiments, a fixed shaft is used as the first winding portion 81. However, the first winding portion 81 is not limited to this. For example, a roller, a pulley, or the like may be used as the first winding portion 81. In this way, wear of the suspension body 9 and the first winding portion 81 can be suppressed, and the life span of the suspension body 9 and the first winding portion 81 can be extended.

[0052] Also, in each of the above-described embodiments, a fixed shaft is used as the second winding portion 82. However, the second winding portion 82 is not limited to this. For example, a roller, a pulley, or the like may be used as the second winding portion 82. In this way, wear of the suspension body 9 and the second winding portion 82 can be suppressed, and the life span of the suspension body 9 and the second winding portion 82 can be extended.

[0053] In each of the above-described embodiments, the deflector 8 has only the first winding portion 81 and the second winding portion 82. However, the deflector 8 may have one or more other winding portions as intermediate winding portions in addition to the first winding portion 81 and the second winding portion 82. In this case, in the deflector 8, the suspension body 9 is wound around the first winding portion 81, one or more intermediate winding portions in sequence, and then wound around the second winding portion 82.

[0054] In each of the above-mentioned embodiments, the second cleat device 7 is disposed between the counterweight guide rail 11 on the side closer to the first wall surface 1a and the first wall surface 1a. However, the position of the second cleat device 7 is not limited to this. For example, if there is an empty space between the counterweight guide rail 11 on the side closer to the second wall surface 1b and the second wall surface 1b, the second cleat device 7 may be disposed between the counterweight guide rail 11 on the side closer to the second wall surface 1b and the second wall surface 1b. In addition, the distance from the counterweight guide rail 11 on the side closer to the first wall surface 1a to the first wall surface 1a and the distance from the counterweight guide rail 11 on the side closer to the second wall surface 1b to the second wall surface 1b may be the same as or different from each other.

[0055] In each of the above embodiments, the set reference direction in which the pair of counterweight guide rails 11 face each other is the depth direction of the hoistway 1. However, the set reference direction is not limited to the depth direction of the hoistway 1. For example, the set reference direction in which the pair of counterweight guide rails 11 face each other may be the width direction of the hoistway 1. In this case, the counterweight 3 is disposed next to the car 2 in the depth direction of the hoistway 1 when the hoistway 1 is viewed from above.

[0056] The configurations shown in the above embodiments are examples of the contents of the present disclosure. The embodiments can be combined with other known technologies. A part of the configuration of the embodiments can be omitted or modified without departing from the gist of the present disclosure.

[0057] Below, examples of aspects that may be included in the present disclosure are set forth as appendices. (Appendix 1) a car having a car body and a car hoist provided on the car body; A counterweight having a counterweight body and a counterweight hoist provided on the counterweight body; a drive device having a drive sheave, disposed in an upper portion of the elevator shaft, and configured to generate a drive force for moving the car and the counterweight in a vertical direction; A first cleat device and a second cleat device disposed at an upper portion of the elevator shaft; A deflector having a first winding portion and a second winding portion and disposed at a lower position than the drive device in an upper portion of the elevator shaft; a suspension body that is connected to each of the first cleat device and the second cleat device, and that is wound around the car hoist, the drive sheave, the counterweight hoist, the first winding portion, and the second winding portion in this order from the first cleat device, and that reaches the second cleat device, and that suspends the car and the counterweight; Equipped with the first winding portion is disposed at a position where at least a portion of the first winding portion overlaps with an area of ​​the counterweight when the elevator shaft is viewed from above; The second winding portion is disposed at a position outside the area of ​​the counterweight when the elevator shaft is viewed from above. (Appendix 2) a pair of counterweight guide rails facing each other in a set reference direction, which is a specific horizontal direction set in the elevator shaft, for guiding the movement of the counterweight in the vertical direction; 2. The elevator apparatus according to claim 1, wherein the second cleat device is positioned at a position outside the range between the pair of counterweight guide rails in the set reference direction. (Appendix 3) 3. The elevator apparatus according to claim 1, wherein at least a portion of the second cleat device is positioned higher than a lower end of the drive device. (Appendix 4) a support structure having a first support member and a second support member disposed at positions spaced apart from each other within the hoistway; the first support member supports the drive device, 4. The elevator apparatus according to claim 1, wherein the second support member supports the second cleat device. (Appendix 5) a pair of car guide rails that guide the upward and downward movement of the car; a pair of counterweight guide rails for guiding the movement of the counterweight in the vertical direction; Equipped with The elevator apparatus of claim 4, wherein the first support member and the second support member are supported by different guide rails out of the pair of car guide rails and the pair of counterweight guide rails. [Explanation of symbols]

[0058] Reference Signs List 1 elevator shaft, 2 cage, 3 counterweight, 5 hoist (drive device), 6 first cleat device, 7 second cleat device, 8 deflector, 9 suspension body, 11 counterweight guide rail, 21 cage body, 22 cage hoist, 31 counterweight body, 32 counterweight hoist, 41 first support beam (first support member), 42 second support beam (second support member), 52 drive sheave, 81 first winding portion, 82 second winding portion.

Claims

1. a car having a car body and a car hoist provided on the car body; A counterweight having a counterweight body and a counterweight hoist provided on the counterweight body; a drive device having a drive sheave, disposed in an upper portion of the elevator shaft, and configured to generate a drive force for moving the car and the counterweight in a vertical direction; A first cleat device and a second cleat device disposed at an upper portion of the elevator shaft; a deflector having a first winding portion and a second winding portion, the deflector being disposed at a lower position than the drive device at an upper portion of the elevator shaft; a suspension body that is connected to each of the first cleat device and the second cleat device, and that is wound around the car hoist, the drive sheave, the counterweight hoist, the first winding portion, and the second winding portion in this order from the first cleat device, and that reaches the second cleat device, and that suspends the car and the counterweight; Equipped with the first winding portion is disposed at a position where at least a portion of the first winding portion overlaps an area of ​​the counterweight when the elevator shaft is viewed from above; The elevator apparatus, wherein the second winding portion is disposed at a position outside the area of ​​the counterweight when the elevator shaft is viewed from above.

2. a pair of counterweight guide rails facing each other in a set reference direction, which is a specific horizontal direction set in the elevator shaft, for guiding the movement of the counterweight in the vertical direction; 2. The elevator apparatus according to claim 1, wherein the second cleat device is disposed at a position outside the range between the pair of counterweight guide rails in the set reference direction.

3. 3. The elevator apparatus according to claim 1, wherein at least a portion of the second cleat device is disposed at a position higher than a lower end of the drive device.

4. a support structure having a first support member and a second support member disposed at positions spaced apart from each other within the hoistway; The first support member supports the drive device, 3. The elevator apparatus according to claim 1, wherein the second support member supports the second cleat device.

5. a pair of car guide rails that guide the upward and downward movement of the car; a pair of counterweight guide rails for guiding the movement of the counterweight in the vertical direction; Equipped with 5. The elevator apparatus according to claim 4, wherein the first support member and the second support member are supported by different guide rails out of the pair of car guide rails and the pair of counterweight guide rails.

Citation Information

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