Elevator hoist unit, hoist and elevator

Abstract

To provide an elevator hoist unit capable of manually rotating a sheave.SOLUTION: An elevator hoist unit includes a hoist having a sheave around which a car rope is wound, and a handle device for manually rotating the sheave. The hoist includes a fixed body having a fixed shaft extending in the axial direction, and a rotating body rotatably connected to the fixed shaft and having the sheave fixed to its outer periphery. The handle device includes a handle that is rotated, and a handle gear that rotates integrally with the handle. The rotating body includes a rotating gear that meshes with the handle gear so as to rotate as the handle gear rotates.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present application relates to an elevator hoist unit, a hoist, and an elevator. [Background technology]

[0002] Conventionally, for example, an elevator hoist includes a fixed body having a fixed shaft extending in the axial direction, and a rotor rotatably connected to the fixed shaft and having a sheave fixed to its outer periphery (for example, Patent Document 1). However, for example, during a power outage, the sheave cannot rotate, and it is necessary to rotate the sheave manually. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-172394 A Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, the object is to provide an elevator hoist unit, a hoist, and an elevator in which the sheave can be manually rotated. [Means for solving the problem]

[0005] [1] The elevator traction machine unit is A hoist having a sheave around which a cage rope is wound; A handle for manually rotating the sheave, comprising: The hoisting machine includes: a fixed body having a fixed shaft extending in an axial direction; A rotor rotatably connected to the fixed shaft and having the sheave fixed to an outer periphery thereof, The handle tool is A handle that is rotated; A handle gear that rotates integrally with the handle, The rotating body includes a rotating gear that meshes with the handle gear so as to rotate as the handle gear rotates.

[0006] [2] In addition, in the elevator traction machine unit described above in [1], The rotating body is A first cylindrical portion to which the sheave is fixed at an outer periphery; a second cylindrical portion disposed on one side of the first cylindrical portion in the axial direction and rotating integrally with the first cylindrical portion; a permanent magnet fixed to one of the outer circumferential portion and the inner circumferential portion of the second cylindrical portion, the fixed body includes a coil portion disposed facing the permanent magnet in a radial direction with a gap therebetween, The rotary gear is fixed to the second cylindrical portion. The following configuration is also possible.

[0007] [3] In addition, in the elevator traction machine unit described in [2] above, The rotary gear is fixed to the other of the outer circumferential portion and the inner circumferential portion of the second cylindrical portion so as to overlap with the permanent magnet when viewed in the radial direction. The following configuration is also possible.

[0008] [4] In addition, in the elevator hoist unit according to the above [2] or [3], The hoisting machine further includes a bearing connecting an inner periphery of the first cylindrical portion and an outer periphery of the fixed shaft, The inner diameter of the second cylindrical portion is larger than the inner diameter of the first cylindrical portion, The permanent magnet is fixed to an outer periphery of the second cylindrical portion, the rotor has a continuous surface that is continuous from the inner circumferential portion of the first cylindrical portion to the inner circumferential portion of the second cylindrical portion, The rotary gear is fixed to the inner circumferential portion of the second cylindrical portion and protrudes radially inward from the inner circumferential portion of the second cylindrical portion. The following configuration is also possible.

[0009] [5] In addition, in the elevator hoist unit according to the above [2] or [3], The first cylindrical portion has the fixed shaft inserted therein, The fixed shaft is formed in a cylindrical shape, The rotating body is A rotating shaft inserted into the fixed shaft; a shaft connecting portion that connects the rotating shaft and the first cylindrical portion, The hoisting machine further includes a bearing connecting an outer periphery of the rotating shaft and an inner periphery of the fixed shaft, The inner diameter of the second cylindrical portion is larger than the inner diameter of the first cylindrical portion, The permanent magnet is fixed to an outer periphery of the second cylindrical portion, the rotating body has a continuous surface that continues from an outer circumferential portion of the rotating shaft, through an inner portion of the shaft connecting portion and an inner circumferential portion of the first cylindrical portion, to an inner circumferential portion of the second cylindrical portion, The rotary gear is fixed to the inner circumferential portion of the second cylindrical portion and protrudes radially inward from the inner circumferential portion of the second cylindrical portion. The following configuration is also possible.

[0010] [6] The hoist may be configured to be used in any one of the elevator hoist unit described above in [1] to [5].

[0011] [7] The elevator may also be configured to include the hoisting machine described above in [6]. [Brief description of the drawings]

[0012] [Figure 1] Schematic diagram of an elevator according to an embodiment. [Diagram 2] FIG. 3 is a front view of the hoist according to the embodiment; [Diagram 3] Enlarged cross-sectional view of line III-III in Figure 2 [Figure 4] Enlarged view of region IV in Fig. 3 [Diagram 5] Enlarged view of the V region in Figure 3 [Figure 6] FIG. 2 is a diagram of a hoist unit according to the embodiment, showing a vertical cross-sectional view of the hoist and a side view of a handle device. [Figure 7] FIG. 2 is a vertical cross-sectional view of the hoist and a side view of the handle device according to the embodiment, showing a state in which a rotating gear of the hoist and a handle gear of the handle device are meshed with each other. [Figure 8] FIG. 11 is a vertical cross-sectional view of a hoist according to another embodiment. [Figure 9] Enlarged view of region IX in Fig. 8 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] In each drawing, the dimensions of the components may be enlarged or reduced relative to the actual dimensions in order to facilitate understanding, and the dimensional ratios between the drawings may not be consistent. Note that in each drawing, some of the components may be omitted in order to facilitate understanding.

[0014] Terms including ordinal numbers such as first, second, etc. are used to describe various components, but these terms are used only for the purpose of distinguishing one component from another, and the components are not particularly limited by these terms. The number of components including ordinal numbers is not particularly limited, and may be, for example, one. In addition, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

[0015] Hereinafter, an embodiment of an elevator, a hoist, and an elevator hoist unit will be described with reference to Figures 1 to 7. Note that the following embodiment is provided as an example to aid in understanding the configurations of the elevator, the hoist, and the elevator hoist unit, and does not limit the configurations of the elevator, the hoist, and the elevator hoist unit.

[0016] As shown in FIG. 1, the elevator 1 may include, for example, a car 2 for people (passengers) to ride in, a car rope 3 connected to the car 2, a counterweight 4 connected to the car rope 3, a hoist 10 that drives the car rope 3 to move the car 2 and the counterweight 4 in the vertical direction D3, a car rail 5 that guides the car 2, a counterweight rail 6 that guides the counterweight 4, and a processing unit 7 that controls each part of the elevator 1.

[0017] In addition, the elevator 1 according to this embodiment is configured such that the hoisting machine 10 is disposed inside the machine room X2, but is not limited to such a configuration. For example, the elevator 1 may be configured such that the machine room X2 is not provided and the hoisting machine 10 is disposed inside the hoistway X1.

[0018] In addition, in this embodiment, the first end of the car rope 3 is connected to the car 2, and the second end of the car rope 3 is connected to the counterweight 4, but the present invention is not limited to such a configuration. For example, a configuration may be adopted in which both ends of the car rope 3 are fixed to the upper part or the lower part of the hoistway X1, and the car rope 3 is wound around the sheaves of the car 2 and the counterweight 4, respectively, thereby connecting the car rope 3 to the car 2 and the counterweight 4, respectively.

[0019] In each figure, the first direction D1 is the first horizontal direction D1, the second direction D2 is the second horizontal direction D2 which is a horizontal direction perpendicular to the first horizontal direction D1, and the third direction D3 is the up-down direction D3 which is perpendicular to each of the horizontal directions D1 and D2, and is the lifting direction in which the car 2 and the counterweight 4 rise and fall.

[0020] The elevator 1 may include, for example, a speed governor 8 that detects the traveling speed of the car 2, as in this embodiment. The car 2 may include, for example, a car chamber 2a for passengers to ride in, a car frame 2b that is arranged around the car chamber 2a and fixed to the car chamber 2a, and a stop device 2c that stops the car 2 on the car rail 5, as in this embodiment.

[0021] The speed governor 8 may, for example, as in this embodiment, include an endless looped governor rope 8a connected to the car 2, a governor wheel 8b around which the governor rope 8a is wound in order to detect the speed of the car 2, a tension wheel 8c suspended from the governor rope 8a in order to apply tension to the governor rope 8a, and a gripper 8d that grips the governor rope 8a. As a result, the speed governor 8 detects the running speed of the car 2 based on the rotational speed of the governor wheel 8b.

[0022] 2 and 3, the hoist 10 may include, for example, a sheave 11 around which the cage rope 3 is wound, an electric motor 12 that rotates the sheave 11, and a braking unit 13 that brakes the sheave 11. The number of braking units 13 is not particularly limited, and may include, for example, a plurality of braking units 13 (three in FIG. 2) as in this embodiment.

[0023] The electric motor 12 may, for example, as in this embodiment, include a fixed body 20 fixed to a structure of the elevator shaft X1 or the machine room X2 (see Figure 1), a rotating body 30 rotating around an axis 12a extending in the axial direction D1, and a bearing 14 connecting the rotating body 30 to the fixed body 20 so that the rotating body 30 is rotatable relative to the fixed body 20.

[0024] 3 and 4, the rotor 30 may include a cylindrical body 31 to which the sheave 11 is fixed at its outer periphery, and an annular disk 32 that protrudes radially outward from the outer periphery of the cylindrical body 31 and is braked by the braking unit 13. For example, the braking unit 13 may be configured to apply pressure to and come into contact with the disk 32, generating frictional force between the braking unit 13 and the disk 32, thereby causing the braking unit 13 to brake the sheave 11.

[0025] The cylindrical body 31 may include, for example, as in this embodiment, a cylindrical first cylindrical portion 33 to which the sheave 11 is fixed at an outer circumferential portion 33a, a cylindrical second cylindrical portion 34 disposed on one side in the axial direction D1 (the right side in Figs. 3 to 7) of the first cylindrical portion 33, and an annular rotational connection portion 35 connecting the first cylindrical portion 33 and the second cylindrical portion 34. As a result, the first cylindrical portion 33, the second cylindrical portion 34, and the rotational connection portion 35 rotate integrally about the shaft center 12a.

[0026] The first cylindrical portion 33 may be disposed, for example, at an end portion of the rotating body 30 (cylindrical body 31) on the other side in the axial direction D1 (the left side in Figs. 3 to 7) as in this embodiment. Also, the second cylindrical portion 34 may be disposed, for example, at an end portion of the rotating body 30 (cylindrical body 31) on one side in the axial direction D1 as in this embodiment.

[0027] The outer diameter of the second cylindrical portion 34 may be larger than the outer diameter of the first cylindrical portion 33, for example, as in this embodiment. Also, the inner diameter of the second cylindrical portion 34 may be larger than the inner diameter of the first cylindrical portion 33, for example, as in this embodiment.

[0028] For example, as in this embodiment, the inner circumferential portion 33b of the first cylindrical portion 33 and the inside portion 35a of the rotary connection portion 35 may be continuous, and the inside portion 35a of the rotary connection portion 35 and the inner circumferential portion 34b of the second cylindrical portion 34 may be continuous. As a result, the rotating body 30 (cylindrical body 31) has a continuous surface 30a that continues from the inner circumferential portion 33b of the first cylindrical portion 33, via the inside portion 35a of the rotary connection portion 35, to the inner circumferential portion 34b of the second cylindrical portion 34.

[0029] The fixed body 20 may, for example, as in this embodiment, comprise a cylindrical fixed shaft 21 extending in the axial direction D1, a cylindrical shaft base portion 22 arranged on one side of the fixed shaft 21 in the axial direction D1 and extending in the axial direction D1, a ring-shaped fixed connection portion 23 connecting the fixed shaft 21 and the shaft base portion 22, a ring-shaped shaft cover portion 24 covering the rotating body 30 when viewed in the axial direction D1, and a cylindrical radial cover portion 25 covering the rotating body 30 when viewed in the radial direction (the radial direction of the rotating body 30, the cylindrical body 31 and each cylindrical portion 33, 34).

[0030] The fixed shaft 21 may be inserted into the first cylindrical portion 33, for example, as in this embodiment. The bearing 14 may connect the inner peripheral portion 33b of the first cylindrical portion 33 and the outer peripheral portion 21a of the fixed shaft 21, for example, as in this embodiment. Although not particularly limited, the bearing 14 may be a bearing (for example, a bearing) filled with oil (for example, lubricating oil), for example, as in this embodiment.

[0031] The shaft base portion 22 may be inserted into the second cylindrical portion 34, for example, as in this embodiment. This allows the electric motor 12 to have a continuous space (gap) from the bearing 14 to the inner periphery 34b of the second cylindrical portion 34. This space continues to the outside of the electric motor 12. Also, the outer diameter of the shaft base portion 22 may be larger than the outer diameter of the fixed shaft 21, for example, as in this embodiment.

[0032] The shaft cover portion 24 may be connected to the shaft base portion 22, for example, as in this embodiment. The shaft cover portion 24 may be disposed on one side in the axial direction D1 of the second cylindrical portion 34, for example, as in this embodiment. In this way, the shaft cover portion 24 covers the second cylindrical portion 34 from one side in the axial direction D1.

[0033] The diameter cover part 25 may be connected to the shaft cover part 24, for example, as in this embodiment. The diameter cover part 25 may be disposed radially outward from the second cylindrical part 34, for example, as in this embodiment. In this way, the diameter cover part 25 covers the second cylindrical part 34 from the radially outer side.

[0034] Also, for example, as in this embodiment, the rotor 30 may include a permanent magnet 36 fixed to the outer circumferential portion 34a of the second cylindrical portion 34, and the fixed body 20 may include a coil portion 26 arranged facing the permanent magnet 36 in the radial direction with a gap therebetween. As a result, when a current flows through the coil portion 26, the permanent magnet 36 receives a force from the coil portion 26, causing the rotor 30 to rotate.

[0035] At this time, heat is generated from the coil portion 26, and the heat is conducted to the second cylindrical portion 34 of the rotating body 30 through the gap. Thereafter, for example, when the current to the coil portion 26 is stopped, the heat is mainly released from the second cylindrical portion 34 of the rotating body 30. In contrast, the rotating body 30 may include a gear (hereinafter also referred to as a "rotating gear") 37 fixed to the inner peripheral portion 34b of the second cylindrical portion 34, as in this embodiment.

[0036] As a result, the rotating gear 37 has a larger surface area than a flat circumferential curved surface, and the surface area of ​​the portion (heat dissipation portion) that dissipates the heat conducted from the coil portion 26 to the rotating body 30 becomes larger. Therefore, the heat conducted from the coil portion 26 to the rotating body 30 can be effectively dissipated from the second cylindrical portion 34 and the rotating gear 37.

[0037] Furthermore, the rotary gear 37 may be disposed so as to overlap with the permanent magnet 36 when viewed in the radial direction, as in the present embodiment. This makes it possible to prevent the length of the second cylindrical portion 34 in the axial direction D1 from becoming long even if not only the permanent magnet 36 but also the rotary gear 37 is fixed to the second cylindrical portion 34.

[0038] However, as shown in Fig. 5, oil may leak from the bearing 14. In such a case, since the continuous surface 30a of the rotor 30 continues from the inner periphery 33b of the first cylindrical portion 33 to the inner periphery 34b of the second cylindrical portion 34, the oil flows along the continuous surface 30a to the inner periphery 34b of the second cylindrical portion 34 (see the two-dot chain line in Fig. 5). In particular, when the rotor 30 is stopped from rotating, the oil flows downward of the inner periphery 34b of the second cylindrical portion 34.

[0039] In contrast, the rotary gear 37 may protrude radially inward from the inner circumferential portion 34b of the second cylindrical portion 34 over the entire circumferential direction (direction around the axis 12a (axial direction D1)) of the second cylindrical portion 34, as in this embodiment. In this way, the rotary gear 37 stops the flow of oil, and it is possible to prevent the oil from flowing to the permanent magnet 36, the coil portion 26, and the disk 32, for example.

[0040] The configuration for fixing the rotary gear 37 and the second cylindrical portion 34 (rotating body 30) is not particularly limited. For example, the rotary gear 37 may be a separate member from the second cylindrical portion 34, and the rotary gear 37 and the second cylindrical portion 34 may be fixed by fixing means (for example, fastening means such as bolts and nuts, or joining means such as welding). Also, for example, the rotary gear 37 and the second cylindrical portion 34 may be integrally molded, and the rotary gear 37 may be one member (the same member) as the second cylindrical portion 34.

[0041] 6 and 7, the hoist 10 may constitute, for example, an elevator hoist unit (hereinafter, also simply referred to as a "hoist unit") 50. The hoist unit 50 may include, for example, the hoist 10 and a handle device 51 that is separable from the hoist 10 and is used to manually rotate the sheave 11 of the hoist 10, as in this embodiment.

[0042] The handle device 51 may include, for example, as in this embodiment, a handle 52 that is operated to rotate, a handle shaft portion 53 that is fixed to the handle 52, and a gear (hereinafter referred to as a "handle gear") 54 that is fixed to the handle shaft portion 53 and meshes with the rotating gear 37 of the hoist 10. As a result, the handle 52, the handle shaft portion 53, and the handle gear 54 rotate together about the axial direction D1.

[0043] There is no particular limitation on the configuration of the handle 52. The handle 52 may be formed, for example, in a rod shape, or may be formed, for example, in a ring shape.

[0044] The handle shaft portion 53 may be formed in a columnar or cylindrical shape, for example, as in this embodiment. The outer diameter of the handle shaft portion 53 may be larger than the outer diameter (specifically, the maximum outer diameter) of the handle gear 54, for example, as in this embodiment.

[0045] The hoist 10 may include a handle support portion 27 that rotatably supports the handle device 51, as in the present embodiment. The handle support portion 27 may be a through hole that penetrates the shaft cover portion 24 of the fixed body 20 in the axial direction D1, as in the present embodiment.

[0046] Although not particularly limited, the handle support part 27 may be, for example, as in this embodiment, a circular hole having an inner diameter slightly larger than the outer diameter of the handle shaft part 53. And, the rotary gear 37 may be arranged so that a part of it protrudes from the inner circumference of the handle support part 27 when viewed in the axial direction D1, as in this embodiment.

[0047] Next, a method for manually rotating the sheave 11 in the hoist unit 50 of this embodiment will be described. Note that the following method is provided as an example to help understand the method for manually rotating the sheave 11 in the hoist unit 50, and does not limit the method for manually rotating the sheave 11 in the hoist unit 50.

[0048] First, when the hoist 10 is operating normally, the handle device 51 is separated from the hoist 10 as shown in Fig. 6. Then, for example, in the event of a power outage, the handle gear 54 passes through the handle support part 27, and the handle shaft part 53 is inserted into the handle support part 27. As a result, the handle shaft part 53 is rotatably supported by the handle support part 27, and the handle gear 54 meshes with the rotary gear 37 as shown in Fig. 7.

[0049] Then, for example, by releasing the braking unit 13 (see Figs. 2 and 3) and manually rotating the handle 52, the handle shaft unit 53 and the handle gear 54 rotate, and accordingly the rotating body 30 rotates. This causes the sheave 11 to rotate, so that the sheave 11 can be appropriately rotated manually even during a power outage, for example.

[0050] As described above, the elevator hoist unit 50, as in this embodiment, A hoist 10 having a sheave 11 around which the cage rope 3 is wound; A handle device 51 for manually rotating the sheave 11. The hoisting machine 10 is A fixed body 20 having a fixed shaft 21 extending in an axial direction D1; A rotor 30 rotatably connected to the fixed shaft 21 and having the sheave 11 fixed to an outer periphery thereof, The handle tool 51 is A handle 52 that is rotated; A handle gear 54 that rotates integrally with the handle 52, The rotating body 30 includes a rotating gear 37 that meshes with the handle gear 54 so as to rotate as the handle gear 54 rotates. This configuration is preferred.

[0051] According to this configuration, when the handle 52 is manually rotated, the handle gear 54 rotates integrally with the handle 52. Then, the handle gear 54 meshes with the rotating gear 37, so the rotating body 30 rotates. This causes the sheave 11 to rotate, so that the sheave 11 can be rotated manually.

[0052] In addition, in the elevator hoist unit 50, as in this embodiment, The rotating body 30 is A first cylindrical portion 33 to which the sheave 11 is fixed to an outer circumferential portion 33a; a second cylindrical portion 34 that is disposed on one side of the first cylindrical portion 33 in the axial direction D1 and rotates integrally with the first cylindrical portion 33; a permanent magnet 36 fixed to one of the outer circumferential portion 34a and the inner circumferential portion 34b of the second cylindrical portion 34 (in this embodiment, the outer circumferential portion 34a); The fixed body 20 includes a coil portion 26 arranged facing the permanent magnet 36 in the radial direction with a gap therebetween, The rotary gear 37 is fixed to the second cylindrical portion 34. This configuration is preferred.

[0053] According to this configuration, the permanent magnet 36 is fixed to one of the outer circumferential portion 34a and the inner circumferential portion 34b of the second cylindrical portion 34 (in this embodiment, the outer circumferential portion 34a), and the coil portion 26 is disposed facing the permanent magnet 36 in the radial direction with a gap therebetween. As a result, when a current flows through the coil portion 26, the permanent magnet 36 receives a force from the coil portion 26, causing the rotor 30 to rotate.

[0054] At this time, the heat generated from the coil portion 26 is conducted to the second cylindrical portion 34 of the rotating body 30, and then the heat is mainly released from the second cylindrical portion 34 of the rotating body 30. In contrast, since the rotating gear 37, which has a large surface area, is fixed to the second cylindrical portion 34, the surface area of ​​the portion that releases the heat conducted from the coil portion 26 to the rotating body 30 can be increased.

[0055] In addition, in the elevator hoist unit 50, as in this embodiment, The rotary gear 37 is fixed to the other of the outer peripheral portion 34a and the inner peripheral portion 34b of the second cylindrical portion 34 (in this embodiment, the inner peripheral portion 34b) so as to overlap with the permanent magnet 36 when viewed in the radial direction. This configuration is preferred.

[0056] According to this configuration, since the rotary gear 37 is fixed to the other of the outer circumferential portion 34a and the inner circumferential portion 34b of the second cylindrical portion 34 (in the present embodiment, the inner circumferential portion 34b), the rotary gear 37 overlaps with the permanent magnet 36 when viewed in the radial direction. As a result, even if not only the permanent magnet 36 but also the rotary gear 37 are fixed to the second cylindrical portion 34, it is possible to prevent the length of the axial direction D1 of the second cylindrical portion from becoming long.

[0057] In addition, in the elevator hoist unit 50, as in this embodiment, The hoist 10 further includes a bearing 14 that connects an inner peripheral portion 33b of the first cylindrical portion 33 and an outer peripheral portion 21a of the fixed shaft 21, The inner diameter of the second cylindrical portion 34 is larger than the inner diameter of the first cylindrical portion 33, The permanent magnet 36 is fixed to the outer circumferential portion 34a of the second cylindrical portion 34. The rotor 30 includes a continuous surface 30a that is continuous from an inner peripheral portion 33b of the first cylindrical portion 33 to an inner peripheral portion 34b of the second cylindrical portion 34, The rotary gear 37 is fixed to the inner peripheral portion 34b of the second cylindrical portion 34 and protrudes radially inward from the inner peripheral portion 34b of the second cylindrical portion 34. This configuration is preferred.

[0058] According to this configuration, the continuous surface 30a of the rotor 30 continues from the inner circumferential portion 33b of the first cylindrical portion 33 to the inner circumferential portion 34b of the second cylindrical portion 34, so that oil leaking from the bearing 14 flows along the continuous surface 30a to the inner circumferential portion 34b of the second cylindrical portion 34. In contrast, the rotary gear 37 protrudes radially inward from the inner circumferential portion 34b of the second cylindrical portion 34. This allows the rotary gear 37 to stop the flow of oil.

[0059] Moreover, it is preferable that the hoist 10 is used in the elevator hoist unit 50 as in this embodiment.

[0060] With this configuration, the sheave 11 can be rotated manually.

[0061] Moreover, it is preferable that the elevator 1 is configured to include the above-mentioned hoisting machine 10 as in this embodiment.

[0062] With this configuration, the sheave 11 can be rotated manually.

[0063] The elevator 1, the hoist 10, and the elevator hoist unit 50 are not limited to the configurations of the above-mentioned embodiments, and are not limited to the above-mentioned effects. Of course, the elevator 1, the hoist 10, and the elevator hoist unit 50 can be modified in various ways without departing from the gist of the present invention. For example, it is of course possible to arbitrarily select one or more of the configurations, methods, etc. of the various modified examples described below and adopt them in the configurations, methods, etc. of the above-mentioned embodiments.

[0064] (A) In the hoist 10 according to the above embodiment, the bearing 14 connects the inner peripheral portion 33b of the first cylindrical portion 33 and the outer peripheral portion 21a of the fixed shaft 21. However, the hoist 10 is not limited to such a configuration.

[0065] For example, as shown in Figures 8 and 9, the first cylindrical portion 33 has a fixed shaft 21 inserted therein, the fixed shaft 21 being formed in a cylindrical shape, the rotating body 30 includes a rotating shaft 38 inserted into the fixed shaft 21, and a shaft connecting portion 39 arranged on the other side of the axial direction D1 (the left side in Figures 8 and 9) of the fixed shaft 21 and connecting the other end portions of the rotating shaft 38 and the first cylindrical portion 33 in the axial direction D1, and the bearing 14 connects the outer peripheral portion 38a of the rotating shaft 38 and the inner peripheral portion 21b of the fixed shaft 21.

[0066] (A-1) Here, the hoist 10 shown in Figs. 8 and 9 will be described below.

[0067] As shown in Figures 8 and 9, for example, the outer peripheral portion 38a of the rotating shaft 38 and the inner peripheral portion 39a of the shaft connection portion 39 may be continuous, the inner peripheral portion 39a of the shaft connection portion 39 and the inner peripheral portion 33b of the first cylindrical portion 33 may be continuous, the inner peripheral portion 33b of the first cylindrical portion 33 and the inner peripheral portion 35a of the rotating connection portion 35 may be continuous, and the inner peripheral portion 35a of the rotating connection portion 35 and the inner peripheral portion 34b of the second cylindrical portion 34 may be continuous.

[0068] As a result, the rotating body 30 (cylindrical body 31) has a continuous surface 30a that continues from the outer circumferential portion 38a of the rotating shaft 38, through the inner portion 39a of the shaft connecting portion 39, the inner circumferential portion 33b of the first cylindrical portion 33, and the inner portion 35a of the rotation connecting portion 35, to the inner circumferential portion 34b of the second cylindrical portion 34. Also, for example, as shown in Figures 8 and 9, the outer diameter of the second cylindrical portion 34 may be larger than the outer diameter of the first cylindrical portion 33.

[0069] Then, as shown in Fig. 9, oil may leak from the bearing 14. In such a case, since the continuous surface 30a of the rotor 30 continues from the outer periphery 38a of the rotating shaft 38 to the inner periphery 34b of the second cylindrical portion 34, the oil flows along the continuous surface 30a to the inner periphery 34b of the second cylindrical portion 34 (see the two-dot chain line in Fig. 9). In particular, when the rotor 30 is stopped rotating, the oil flows downward of the inner periphery 34b of the second cylindrical portion 34.

[0070] 9, the rotary gear 37 may protrude radially inward from the inner circumferential portion 34b of the second cylindrical portion 34 over the entire circumferential area of ​​the second cylindrical portion 34. In this way, the rotary gear 37 stops the flow of oil, so that it is possible to prevent the oil from flowing to the permanent magnet 36, the coil portion 26, and the disk 32, for example.

[0071] In this manner, in the elevator hoist unit 50, as shown in FIGS. 8 and 9, The fixed shaft 21 is inserted into the first cylindrical portion 33. The fixed shaft 21 is formed in a cylindrical shape. The rotating body 30 is A rotating shaft 38 inserted into the fixed shaft 21; a shaft connecting portion 39 that connects the rotating shaft 38 and the first cylindrical portion 33, The hoist 10 further includes a bearing 14 that connects an outer circumferential portion 38a of the rotating shaft 38 and an inner circumferential portion 21b of the fixed shaft 21, The inner diameter of the second cylindrical portion 34 is larger than the inner diameter of the first cylindrical portion 33, The permanent magnet 36 is fixed to the outer circumferential portion 34a of the second cylindrical portion 34. The rotating body 30 includes a continuous surface 30a that is continuous from an outer circumferential portion 38a of the rotating shaft 38 through an inner portion 39a of the shaft connecting portion 39 and an inner circumferential portion 33b of the first cylindrical portion 33 to an inner circumferential portion 34b of the second cylindrical portion 34, The rotary gear 37 is fixed to the inner peripheral portion 34b of the second cylindrical portion 34 and protrudes radially inward from the inner peripheral portion 34b of the second cylindrical portion 34. This configuration is preferred.

[0072] According to this configuration, the continuous surface 30a of the rotor 30 continues from the outer periphery 38a of the rotor shaft 38, via the inner portion 39a of the shaft connecting portion 39 and the inner periphery 33b of the first cylindrical portion 33, to the inner periphery 34b of the second cylindrical portion 34, so that oil leaking from the bearing 14 flows along the continuous surface 30a to the inner periphery 34b of the second cylindrical portion 34. In contrast, the rotary gear 37 protrudes radially inward from the inner periphery 34b of the second cylindrical portion 34. This allows the rotary gear 37 to stop the flow of oil.

[0073] (B) In the hoist 10 according to the above embodiment, the permanent magnet 36 is fixed to the outer circumferential portion 34a of the second cylindrical portion 34, and the coil portion 26 is disposed radially outward from the permanent magnet 36. However, the hoist 10 is not limited to this configuration. For example, the permanent magnet 36 may be fixed to the inner circumferential portion 34b of the second cylindrical portion 34, and the coil portion 26 may be disposed radially inward from the permanent magnet 36.

[0074] (C) In the hoist 10 according to the above embodiment, the rotating body 30 is configured to include a permanent magnet 36, and the fixed body 20 is configured to include a coil portion 26. However, the hoist 10 is not limited to such a configuration. For example, the fixed body 20 may be configured to include a permanent magnet, and the rotating body 30 may be configured to include a coil portion.

[0075] (D) In ​​the hoist 10 according to the above embodiment, the rotating gear 37 is fixed to the second cylindrical portion 34 so as to overlap with the permanent magnet 36 when viewed in the radial direction. However, the hoist 10 is not limited to this configuration.

[0076] For example, the rotary gear 37 may be fixed to the second cylindrical portion 34 so as to be separated from the permanent magnet 36 in the axial direction D1 when viewed in the radial direction. In such a configuration, for example, the rotary gear 37 and the permanent magnet 36 may each be fixed to the outer circumferential portion 34a of the second cylindrical portion 34, or, for example, the rotary gear 37 and the permanent magnet 36 may each be fixed to the inner circumferential portion 34b of the second cylindrical portion 34.

[0077] (E) In the hoist 10 according to the above embodiment, the rotary gear 37 is fixed to the inner circumferential portion 34b of the second tubular portion 34 and protrudes radially inward from the inner circumferential portion 34b of the second tubular portion 34. However, the hoist 10 is not limited to this configuration.

[0078] For example, the rotary gear 37 may be fixed to the inner peripheral portion 34b of the second cylindrical portion 34 and may be recessed radially outward from the inner peripheral portion 34b of the second cylindrical portion 34. The rotary gear 37 may also be fixed to the outer peripheral portion 34a of the second cylindrical portion 34, for example, or may be fixed to the inner peripheral portion 33b of the first cylindrical portion 33, or may be fixed to the outer peripheral portion of the disk 32, for example.

[0079] (F) In the hoist 10 according to the above embodiment, the rotor 30 is configured to have a continuous surface 30a that is continuous from the inner circumferential portion 33b of the first tubular portion 33 to the inner circumferential portion 34b of the second tubular portion 34. However, the hoist 10 is not limited to this configuration. For example, the rotor 30 may be configured to separate the inner circumferential portion 33b of the first tubular portion 33 from the inner circumferential portion 34b of the second tubular portion 34.

[0080] (G) In addition, in the elevator hoist unit 50 according to the above embodiment, the handle device 51 is configured to be separable from the hoist 10, that is, to be attachable to and detachable from the hoist 10. However, the elevator hoist unit 50 is not limited to such a configuration.

[0081] For example, the handle device 51 may be configured to be inseparably connected to the hoisting machine 10. In such a configuration, for example, when the hoisting machine 10 is operating normally, the handle device 51 may also rotate in conjunction with the rotation of the sheave 11.

[0082] Also, for example, the handle device 51 may be configured such that it cannot be completely separated from the hoist 10, but the handle device 51 is movable relative to the hoist 10. In such a configuration, the handle device 51 may be configured such that the rotating gear 37 and the handle gear 54 can be switched between an engaged state and a disengaged state by moving the handle device 51 relative to the hoist 10.

[0083] (H) For example, the order of execution of each process, such as operations, procedures, steps, and stages, in the methods and apparatuses shown in the claims, specifications, and drawings, may be arbitrary, so long as the result of a previous process is not used in a subsequent process. For example, even if the description uses "first," "next," etc. for convenience, it does not mean that the processes must be executed in that order. [Explanation of symbols]

[0084] 1... elevator, 2... cage, 2a... cage room, 2b... cage frame, 2c... stopping device, 3... cage rope, 4... counterweight, 5... cage rail, 6... weight rail, 7... processing section, 8... governor, 8a... governor rope, 8b... governor wheel, 8c... tension wheel, 8d... gripping section, 10... hoist, 11... sheave, 12... electric motor, 12a... shaft center, 13... braking section, 14... bearing, 20... fixed body, 21... fixed shaft, 21a... outer periphery, 21b... inner periphery, 22... shaft base section, 23... fixed connection section, 24... shaft cover section, 25... diameter cover section, 26... coil section, 27... handle support section, 30... Rotating body, 30a...continuous surface, 31...cylindrical body, 32...disk, 33...first cylindrical portion, 33a...outer periphery, 33b...inner periphery, 34...second cylindrical portion, 34a...outer periphery, 34b...inner periphery, 35...rotation connection portion, 35a...inner portion, 36...permanent magnet, 37...rotating gear, 38...rotating shaft, 38a...outer periphery, 39...shaft connection portion, 39a...inner portion, 50...elevator hoist unit, 51...handle device, 52...handle, 53...handle shaft portion, 54...handle gear, D1...first horizontal direction (axial direction), D2...second horizontal direction, D3...up-down direction, X1...hoistway, X2...machine room

Claims

1. A hoist having a sheave around which a cage rope is wound; A handle for manually rotating the sheave, comprising: The hoisting machine includes: a fixed body having a fixed shaft extending in an axial direction; A rotor rotatably connected to the fixed shaft and having the sheave fixed to an outer periphery thereof, The handle tool is A handle that is rotated; A handle gear that rotates integrally with the handle, The rotating body includes a rotating gear that meshes with the handle gear so as to rotate as the handle gear rotates.

2. The rotating body is A first cylindrical portion to which the sheave is fixed at an outer periphery; a second cylindrical portion disposed on one side of the first cylindrical portion in the axial direction and rotating integrally with the first cylindrical portion; a permanent magnet fixed to one of an outer circumferential portion and an inner circumferential portion of the second cylindrical portion, the fixed body includes a coil portion disposed facing the permanent magnet in a radial direction with a gap therebetween, The elevator hoist unit according to claim 1 , wherein the rotary gear is fixed to the second cylindrical portion.

3. The elevator hoist unit according to claim 2 , wherein the rotary gear is fixed to the other of the outer circumferential portion and the inner circumferential portion of the second cylindrical portion so as to overlap with the permanent magnet when viewed in a radial direction.

4. The hoisting machine further includes a bearing connecting an inner periphery of the first cylindrical portion and an outer periphery of the fixed shaft, The inner diameter of the second cylindrical portion is larger than the inner diameter of the first cylindrical portion, The permanent magnet is fixed to an outer circumferential portion of the second cylindrical portion, the rotating body has a continuous surface that is continuous from an inner circumferential portion of the first cylindrical portion to an inner circumferential portion of the second cylindrical portion, The elevator hoist unit according to claim 2 or 3, wherein the rotary gear is fixed to an inner periphery of the second cylindrical portion and protrudes radially inward from the inner periphery of the second cylindrical portion.

5. The first cylindrical portion has the fixed shaft inserted therein, The fixed shaft is formed in a cylindrical shape, The rotating body is A rotating shaft inserted into the fixed shaft; a shaft connection portion that connects the rotating shaft and the first cylindrical portion, The hoisting machine further includes a bearing connecting an outer periphery of the rotating shaft and an inner periphery of the fixed shaft, The inner diameter of the second cylindrical portion is larger than the inner diameter of the first cylindrical portion, The permanent magnet is fixed to an outer circumferential portion of the second cylindrical portion, the rotating body has a continuous surface that continues from an outer circumferential portion of the rotating shaft, through an inner portion of the shaft connecting portion and an inner circumferential portion of the first cylindrical portion, to an inner circumferential portion of the second cylindrical portion, The elevator hoist unit according to claim 2 or 3, wherein the rotary gear is fixed to an inner periphery of the second cylindrical portion and protrudes radially inward from the inner periphery of the second cylindrical portion.

6. A hoist used in the elevator hoist unit according to any one of claims 1 to 3.

7. An elevator comprising the hoisting machine according to claim 6.

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