elevator

Abstract

To provide an elevator capable of suppressing the occurrence of the problem in devices in a hoistway due to oil adhering.SOLUTION: An elevator comprises a car guide rail 11a, a fitting arm 30, hoistway equipment 20, and a hoist 14. The fitting arm 30 has an end part 30a fixed to the car guide rail 11a and an end part 30b fitted with the hoistway equipment 20. The fitting arm 30 is inclined so that the height position of its end part 30b is lower than the height position of the end part 30a. A tip 30d of the end part 30b of the fitting arm 30 is arranged to be overlapped with the hoist 14 viewed from the vertical direction. A projection 41a is provided between the end part 30a and the end part 30b of the fitting arm 30 for dropping an oil 40 flowing along and on the fitting arm 30. The projection 41a is arranged so as not to overlap with the hoist 14 viewed from the vertical direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to elevators. [Background technology]

[0002] Patent Document 1 discloses an elevator system. This elevator system has a car, car guide rails, a landing device, and a control panel. The landing device detects the position of the car. The landing device is composed of a proximity switch and a landing plate. The proximity switch is provided on the side of the car. The landing plate is attached to the car guide rail via a mounting arm. The control panel is provided below the lowest movement position of the proximity switch. The control panel is positioned so as to overlap with the area of ​​the proximity switch and the landing plate projected in the direction of the car's ascent and descent. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 99 / 065812 Summary of the Invention [Problem to be solved by the invention]

[0004] The car guide rails are coated with lubricating oil to allow the car to move up and down smoothly. Therefore, when the mounting arm is installed at an angle with respect to the car guide rail so that the tip of the mounting arm is lower, the lubricating oil on the car guide rail runs down the mounting arm and reaches the tip. Over time, the lubricating oil that accumulates at the tip of the mounting arm drips downward from the tip of the mounting arm. If the dripping oil adheres to the control panel and other equipment inside the hoistway, problems such as contamination and deterioration may occur in the equipment inside the hoistway.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator that can prevent malfunctions in the equipment inside the hoistway due to adhesion of oil. [Means for solving the problem]

[0006] The elevator according to the present disclosure comprises a lifting body that moves up and down in a lifting shaft, a guide rail that guides the lifting body as it moves up and down, a first mounting arm fixed to the guide rail, a first lifting shaft device attached to the first mounting arm, and a lifting shaft device installed in the lifting shaft below the first mounting arm, wherein the first mounting arm has a first end fixed to the guide rail and a second end to which the first lifting shaft device is attached, the first mounting arm is inclined so that the height position of the second end is lower than the height position of the first end, the tip of the second end of the first mounting arm is positioned so as to overlap with the lifting shaft device when viewed along the vertical direction, and a first drip portion that drips oil running down the first mounting arm is provided between the first end and the second end of the first mounting arm, and the first drip portion is positioned so as not to overlap with the lifting shaft device when viewed along the vertical direction. [Effects of the Invention]

[0007] According to the present disclosure, malfunctions in the equipment inside the elevator shaft caused by adhesion of oil can be suppressed. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a top view showing the configuration of an elevator according to a first embodiment. [Figure 2] 1 is a front view showing the configuration of a mounting arm of an elevator according to a first embodiment. [Figure 3] FIG. 10 is a front view showing the configuration of a mounting arm of an elevator according to a second embodiment. [Figure 4] FIG. 11 is a front view showing the configuration of a mounting arm of an elevator according to a third embodiment. [Figure 5] FIG. 10 is a front view showing the configuration of multiple mounting arms of an elevator according to a fourth embodiment. [Figure 6]FIG. 10 is a front view showing the configuration of multiple mounting arms of an elevator according to a fifth embodiment. [Figure 7] FIG. 13 is a front view showing the configuration of multiple mounting arms of an elevator according to a sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 An elevator according to a first embodiment will be described. Fig. 1 is a top view showing the configuration of an elevator according to this embodiment. Fig. 1 shows the configuration of the elevator as viewed vertically from above. As shown in Fig. 1, the elevator includes a car 10, a pair of car guide rails 11a, 11b, a weight 12, a pair of weight guide rails 13a, 13b, a hoisting machine 14, a hoistway device 20, and a mounting arm 30.

[0010] The car 10 is configured to move up and down within the hoistway 15. Each of the car guide rails 11a, 11b extends in the vertical direction. The car guide rails 11a, 11b are configured to guide the car 10 as it moves up and down. Each of the car guide rails 11a, 11b is coated with lubricating oil to allow the car 10 to move up and down smoothly. In addition to the coated lubricating oil, various oils used within the hoistway 15 may adhere to each of the car guide rails 11a, 11b.

[0011] Weight 12 is configured to move up and down within hoistway 15. Weight guide rails 13a, 13b each extend in the vertical direction. Weight guide rails 13a, 13b are configured to guide weight 12 as it moves up and down. Lubricating oil is applied to weight guide rails 13a, 13b to ensure smooth movement of weight 12 up and down. In addition to the applied lubricating oil, various oils used within hoistway 15 may adhere to weight guide rails 13a, 13b.

[0012] The hoisting machine 14 is installed in a pit at the bottom of the hoistway 15. The hoisting machine 14 is installed below the mounting arm 30 within the hoistway 15. The hoisting machine 14 is an example of an in-hoistway device. The hoisting machine 14 is arranged away from the car guide rail 11a.

[0013] The hoist 14 has a sheave. A plurality of ropes (not shown) are wound around the sheave. One end of each of the plurality of ropes is connected to the car 10. The other end of each of the plurality of ropes is connected to the weight 12. The hoist 14 is controlled by a control panel (not shown).

[0014] Fig. 2 is a front view showing the configuration of the elevator mounting arm according to this embodiment. The up-down direction in Fig. 2 represents the vertical up-down direction. Fig. 2 also shows oil 40 such as lubricating oil.

[0015] As shown in Fig. 2, the hoistway equipment 20 is attached to the car guide rail 11a via the mounting arm 30. The hoistway equipment 20 is installed in the hoistway 15 by being supported by the mounting arm 30. The hoistway equipment 20 includes, for example, a landing plate, a governor rope sway rest, an upper end switch, a lower end switch, etc. The hoistway equipment 20 is separate equipment from the hoistway in-car device.

[0016] The mounting arm 30 is a rectangular, flat sheet metal member that is long in one direction. The mounting arm 30 may be bent as necessary. The mounting arm 30 is attached to the car guide rail 11a and extends in a direction away from the car guide rail 11a. The mounting arm 30 has one end 30a in the longitudinal direction and another end 30b in the longitudinal direction. The end 30a of the mounting arm 30 is fixed to the car guide rail 11a using a rail clip or the like. The end 30a of the mounting arm 30 is in contact with the back surface 11a1 of the car guide rail 11a. The mounting arm 30 is thus supported by the car guide rail 11a. The elevator shaft equipment 20 is attached to the end 30b of the mounting arm 30.

[0017] The mounting arm 30 is inclined so that the height position of the end 30b is lower than the height position of the end 30a. The center of gravity of the mounting arm 30 is located between the end 30a and the end 30b. However, only one end 30a of the mounting arm 30 is supported by the car guide rail 11a. For this reason, the mounting arm 30 is often attached to the car guide rail 11a in an inclined state as described above.

[0018] A first drip portion for dripping oil running down the mounting arm 30 is provided between the end 30a and the end 30b of the mounting arm 30. In the present embodiment, a protrusion 41a is formed as the first drip portion. The protrusion 41a is formed on the underside 30c of the mounting arm 30. The protrusion 41a protrudes downward from the underside 30c. The protrusion 41a is formed integrally with the mounting arm 30. For example, the protrusion 41a is cut out together with the mounting arm 30 when the mounting arm 30 is cut out from a metal plate. In a front view of the mounting arm 30, the protrusion 41a is located between the car guide rail 11a and the tip 30d of the end 30b.

[0019] As shown in Fig. 1, the tip 30d of the end portion 30b of the mounting arm 30 is positioned so as to overlap with the hoisting machine 14 when viewed vertically. That is, the tip 30d is positioned directly above the hoisting machine 14. On the other hand, the protrusion 41a is positioned so as not to overlap with the hoisting machine 14 when viewed vertically. That is, the protrusion 41a is positioned at a position that is not directly above the hoisting machine 14.

[0020] In the above-described configuration, oil 40 on the car guide rail 11a gradually drips downward due to gravity. Oil 40 adhering to the mounting arm 30 flows down to the lower surface 30c of the mounting arm 30. The lower surface 30c is inclined so that the height position of the end 30b is lower than the height position of the end 30a. Therefore, the oil 40 that flows down to the lower surface 30c flows along the lower surface 30c toward the tip 30d.

[0021] If the protrusion 41a were not formed, the oil 40 running down the underside 30c would reach the tip 30d and drip downward from the tip 30d. The tip 30d is located directly above the hoisting machine 14. For this reason, the oil 40 dripping from the tip 30d would adhere to the hoisting machine 14. If the oil 40 adheres to the hoisting machine 14, not only could problems such as staining, deterioration, and breakdown occur in the hoisting machine 14, but other problems such as a decrease in braking force could also occur.

[0022] In contrast, in this embodiment, a protrusion 41a is formed on the underside 30c of the mounting arm 30. Therefore, the oil 40 running down the underside 30c reaches the protrusion 41a before reaching the tip 30d, and drips downward from the protrusion 41a. The protrusion 41a is positioned away from directly above the hoisting machine 14. Therefore, the oil 40 dripping from the protrusion 41a does not directly adhere to the hoisting machine 14, but adheres to the floor surface at the bottom of the hoistway 15. Therefore, it is possible to prevent malfunctions of the hoisting machine 14 due to the adhesion of the oil 40.

[0023] As described above, the elevator according to this embodiment includes the car 10, the car guide rail 11a, the mounting arm 30, the hoistway equipment 20, and the hoisting machine 14. The car 10 is configured to move up and down in the hoistway 15. The car guide rail 11a is configured to guide the car 10 as it moves up and down. The mounting arm 30 is fixed to the car guide rail 11a. The hoistway equipment 20 is attached to the mounting arm 30. The hoisting machine 14 is installed below the mounting arm 30 within the hoistway 15.

[0024] The mounting arm 30 has an end 30a and an end 30b. The end 30a is fixed to the car guide rail 11a. The hoistway equipment 20 is attached to the end 30b. The mounting arm 30 is inclined so that the height position of the end 30b is lower than the height position of the end 30a. The tip 30d of the end 30b of the mounting arm 30 is arranged so as to overlap with the hoisting machine 14 when viewed along the vertical direction. A first drip portion is provided between the end 30a and the end 30b of the mounting arm 30. The first drip portion is configured to drip the oil 40 running down the mounting arm 30. The first drip portion is arranged so as not to overlap with the hoisting machine 14 when viewed along the vertical direction.

[0025] Here, the car 10 is an example of a lifting body. The car guide rail 11a is an example of a guide rail. The mounting arm 30 is an example of a first mounting arm. The hoistway equipment 20 is an example of a first hoistway equipment. The hoisting machine 14 is an example of an in-hoistway device. The end 30a is an example of a first end. The end 30b is an example of a second end.

[0026] According to this configuration, the oil 40 flowing along the mounting arm 30 toward the tip 30d reaches the first drip section before reaching the tip 30d, and drips downward from the first drip section. The first drip section is located in a position that is not directly above the hoisting machine 14. Therefore, the oil 40 dripping from the first drip section does not adhere to the hoisting machine 14. Therefore, it is possible to prevent malfunctions of the hoisting machine 14 due to adhesion of the oil 40.

[0027] In the elevator according to this embodiment, the first dropping portion has a protrusion 41a. The protrusion 41a is formed on the lower surface 30c of the mounting arm 30. With this configuration, the first dropping portion can be formed integrally with the mounting arm 30, thereby suppressing an increase in the number of parts.

[0028] Embodiment 2 An elevator according to embodiment 2 will now be described. Fig. 3 is a front view showing the configuration of a mounting arm of the elevator according to this embodiment. The up and down direction in Fig. 3 represents the vertical up and down direction.

[0029] 3, the mounting arm 30 of this embodiment has a notch 42 formed as a first drip portion. The notch 42 is formed on the underside 30c of the mounting arm 30. In a front view of the mounting arm 30, the notch 42 is located between the car guide rail 11a and the tip 30d of the end portion 30b.

[0030] The notch 42 is arranged so as not to overlap with the hoisting machine 14 when viewed in the vertical direction. In other words, the notch 42 is arranged in a position that is not directly above the hoisting machine 14. The other configurations are the same as those in the first embodiment.

[0031] As described above, in the elevator according to this embodiment, the first drip portion has the notch 42. The notch 42 is formed on the underside 30c of the mounting arm 30. With this configuration, it is possible to obtain the same effects as in the first embodiment. Furthermore, with this configuration, it is possible to increase the material yield when the mounting arm 30 is cut out from a metal plate.

[0032] Embodiment 3 An elevator according to embodiment 3 will now be described. Fig. 4 is a front view showing the configuration of a mounting arm of the elevator according to this embodiment. The up and down direction in Fig. 4 represents the vertical up and down direction.

[0033] As shown in FIG. 4, the mounting arm 30 of this embodiment is provided with a component 43 as a first dripping portion. The component 43 is formed separately from the mounting arm 30. The component 43 is attached to the mounting arm 30 after the mounting arm 30 is formed by cutting out from a metal plate or the like. The component 43 may be attached to the mounting arm 30 after the mounting arm 30 is attached to the car guide rail 11a. The component 43 may be detachable from the mounting arm 30. The component 43 is in close contact with at least three surfaces of the mounting arm 30, including, for example, the lower surface 30c, the upper surface 30e, and one of the main surfaces.

[0034] A lower end 43a of the part 43 protrudes downward from the lower surface 30c of the mounting arm 30. The part 43 is provided between one end 30a and the other end 30b of the mounting arm 30. In a front view of the mounting arm 30, the part 43 is located between the car guide rail 11a and the tip 30d of the end 30b.

[0035] The lower end portion 43a of the part 43 is arranged so as not to overlap with the hoisting machine 14 when viewed in the vertical direction. In other words, the lower end portion 43a of the part 43 is arranged in a position that is not directly above the hoisting machine 14. The other configurations are the same as those in the first embodiment.

[0036] As described above, in the elevator according to this embodiment, the first drip portion has the component 43. The component 43 is formed separately from the mounting arm 30. The component 43 is attached to the mounting arm 30. The component 43 protrudes downward from the lower surface 30c of the mounting arm 30. With this configuration, the same effects as in the first embodiment can be obtained. Furthermore, with this configuration, the position at which the oil 40 drips can be adjusted by changing the attachment position of the component 43 relative to the mounting arm 30.

[0037] Furthermore, the component 43 of this embodiment is in close contact with the lower surface 30c and the upper surface 30e of the mounting arm 30. Therefore, not only the oil 40 running down the lower surface 30c but also the oil 40 running down the upper surface 30e can be made to drip downward by the component 43.

[0038] Embodiment 4 An elevator according to embodiment 4 will now be described. Fig. 5 is a front view showing the configuration of a plurality of mounting arms of the elevator according to this embodiment. The up and down direction in Fig. 5 represents the vertical up and down direction.

[0039] As shown in Fig. 5, a plurality of elevator shaft devices 20-1 to 20-5 are attached to the car guide rail 11a. In this embodiment, each of the elevator shaft devices 20-1 to 20-5 is, for example, a landing plate. The elevator shaft devices 20-1 to 20-5 are provided at the same planar position within the elevator shaft 15. That is, when viewed along the vertical direction, the elevator shaft devices 20-1 to 20-5 are all arranged overlapping each other. The elevator shaft device 20-1, elevator shaft device 20-2, elevator shaft device 20-3, elevator shaft device 20-4, and elevator shaft device 20-5 are arranged in this order from the top.

[0040] Hoistway equipment 20-1 is fixed to car guide rail 11a by mounting arm 30-1. Similarly, hoistway equipment 20-2 to 20-5 are fixed to car guide rail 11a by mounting arms 30-2 to 30-5, respectively.

[0041] Mounting arms 30-1, 30-2, 30-3, 30-4, and 30-5 are arranged in this order from above. When viewed vertically, mounting arms 30-1 to 30-5 are all arranged to overlap. All mounting arms 30-1 to 30-5 are arranged above hoisting machine 14. Each of mounting arms 30-1 to 30-5 is inclined so that the height position of end 30b is lower than the height position of end 30a. When viewed vertically, tip end 30d of each of mounting arms 30-1 to 30-5 is arranged to overlap with hoisting machine 14.

[0042] On the underside 30c of the mounting arm 30-1, protrusions 41a, 41b, and 41c are formed as a plurality of dripping portions for dripping oil running down the mounting arm 30-1. Each of the protrusions 41a, 41b, and 41c has the same configuration as the protrusion 41a of the first embodiment.

[0043] The protrusions 41a, 41b, and 41c are arranged in parallel. The protrusion 41a is provided between the end 30a and the end 30b of the mounting arm 30-1. The protrusion 41b is provided between the protrusion 41a and the end 30b of the mounting arm 30-2. The protrusion 41c is provided between the protrusion 41b and the end 30b of the mounting arm 30-3. When viewed in the vertical direction, the protrusions 41a, 41b, and 41c are all arranged so as not to overlap with the hoist 14.

[0044] Mounting arms 30-2 to 30-5 have the same shape as mounting arm 30-1. When viewed along the vertical direction, protrusion 41a of each of mounting arms 30-2 to 30-5 overlaps with protrusion 41a of mounting arm 30-1, but is arranged so as not to overlap with hoisting machine 14. When viewed along the vertical direction, protrusion 41b of each of mounting arms 30-2 to 30-5 overlaps with protrusion 41b of mounting arm 30-1, but is arranged so as not to overlap with hoisting machine 14. When viewed along the vertical direction, protrusion 41c of each of mounting arms 30-2 to 30-5 overlaps with protrusion 41c of mounting arm 30-1, but is arranged so as not to overlap with hoisting machine 14.

[0045] In the above configuration, oil 40 dripping downward from protrusion 41a of mounting arm 30-1 will, with a certain probability, hit mounting arm 30-2, which is located below mounting arm 30-1. If the position at which oil 40 hits is directly above protrusion 41a of mounting arm 30-2 or closer to the car guide rail 11a than protrusion 41a, the oil adhering to mounting arm 30-2 will drip downward from protrusion 41a of mounting arm 30-2.

[0046] On the other hand, if the position on which the oil 40 hits is closer to the tip 30d than the protrusion 41a of the mounting arm 30-2, the oil 40 adhering to the mounting arm 30-2 may not drip downward from the protrusion 41a of the mounting arm 30-2, but may instead flow down the mounting arm 30-2 and toward the tip 30d of the protrusion 41a of the mounting arm 30-2. However, in this embodiment, the protrusion 41b is formed between the protrusion 41a of each of the mounting arms 30-1 to 30-5 and the tip 30d, and therefore the oil 40 that does not drip downward from the protrusion 41a drips downward from the protrusion 41b before reaching the tip 30d.

[0047] Similarly, for example, oil 40 dripping downward from protrusion 41b of mounting arm 30-2 will, with a certain probability, hit mounting arm 30-3. In this case, oil 40 adhering to mounting arm 30-3 drips downward from protrusion 41b or protrusion 41c before reaching tip 30d of mounting arm 30-3.

[0048] In each of the mounting arms 30-1 to 30-5, the protrusions 41a, 41b, and 41c are arranged so as not to overlap with the hoisting machine 14 when viewed vertically. Therefore, oil 40 that drips from any of the protrusions 41a, 41b, and 41c and does not hit the other mounting arms does not adhere directly to the hoisting machine 14, but adheres to the floor surface at the bottom of the hoistway 15.

[0049] In this embodiment, five mounting arms 30-1 to 30-5 are provided, but the number of mounting arms may be two to four, or five or more. Also, in this embodiment, the number of protrusions, i.e., the number of dripping portions, provided on each of the mounting arms 30-1 to 30-5 is three. However, the number of dripping portions provided on each of the mounting arms 30-1 to 30-5 may be two or four or more. The number of dripping portions provided on each of the mounting arms 30-1 to 30-5 can be set appropriately taking into consideration the number of mounting arms 30-1 to 30-5 that are arranged overlapping each other when viewed vertically, etc.

[0050] In this embodiment, each of the multiple dropping portions has a configuration similar to the protrusion 41a of embodiment 1, but each of the multiple dropping portions may also have a configuration similar to the notch 42 of embodiment 2 or the component 43 of embodiment 3.

[0051] As described above, the elevator according to this embodiment includes the mounting arm 30-1, the mounting arm 30-2, the hoistway equipment 20-1, and the hoistway equipment 20-2. Each of the mounting arm 30-1 and the mounting arm 30-2 is fixed to the car guide rail 11a. The hoistway equipment 20-1 is attached to the mounting arm 30-1. The hoistway equipment 20-2 is attached to the mounting arm 30-2.

[0052] A protrusion 41b is provided between the protrusion 41a and the end 30b of the mounting arm 30-1 to drip oil running down the mounting arm 30-1. The protrusion 41b is positioned so as not to overlap with the hoisting machine 14 when viewed in the vertical direction.

[0053] The mounting arm 30-2 is disposed below the mounting arm 30-1 and above the hoisting machine 14. The mounting arm 30-2 is disposed so as to overlap the mounting arm 30-1 when viewed vertically. The mounting arm 30-2 has an end 30a and an end 30b. The end 30a of the mounting arm 30-2 is fixed to the car guide rail 11a. The hoistway equipment 20-2 is attached to the end 30b of the mounting arm 30-2. The mounting arm 30-2 is inclined so that the height position of the end 30b is lower than the height position of the end 30a. The tip 30d of the end 30b of the mounting arm 30-2 is disposed so as to overlap the hoisting machine 14 when viewed vertically.

[0054] A protrusion 41a is provided between end 30a and end 30b of mounting arm 30-2, allowing oil running down mounting arm 30-2 to drip. A protrusion 41b is provided between protrusion 41a and end 30b of mounting arm 30-2, allowing oil running down mounting arm 30-2 to drip. When viewed along the vertical direction, protrusion 41a of mounting arm 30-2 overlaps with protrusion 41a of mounting arm 30-1, but is positioned so as not to overlap with hoist 14. When viewed along the vertical direction, protrusion 41b of mounting arm 30-2 overlaps with protrusion 41b of mounting arm 30-1, but is positioned so as not to overlap with hoist 14.

[0055] Here, the mounting arm 30-1 is an example of a first mounting arm. The mounting arm 30-2 is an example of a second mounting arm. The elevator shaft equipment 20-1 is an example of a first elevator shaft equipment. The elevator shaft equipment 20-2 is an example of a second elevator shaft equipment. The protrusion 41a of the mounting arm 30-1 is an example of a first drop portion. The protrusion 41b of the mounting arm 30-1 is an example of a second drop portion. The end 30a of the mounting arm 30-2 is an example of a third end portion. The end 30b of the mounting arm 30-2 is an example of a fourth end portion. The protrusion 41a of the mounting arm 30-2 is an example of a third drop portion. The protrusion 41b of the mounting arm 30-2 is an example of a fourth drop portion.

[0056] With this configuration, there is a certain probability that the oil 40 dripping from the protrusion 41a of the mounting arm 30-1 will adhere to the tip 30d side of the protrusion 41a of the mounting arm 30-2. However, even in this case, the oil 40 adhering to the mounting arm 30-2 will reach the protrusion 41b of the mounting arm 30-2 before reaching the tip 30d of the mounting arm 30-2, and will drip downward from the protrusion 41b. The protrusion 41b of the mounting arm 30-2 is positioned away from directly above the hoisting machine 14. Therefore, the oil 40 dripping from the protrusion 41b of the mounting arm 30-2 will not adhere to the hoisting machine 14. This makes it possible to prevent malfunctions of the hoisting machine 14 caused by the adhesion of the oil 40.

[0057] Furthermore, with the above configuration, the mounting arms 30-1 and 30-2 can be made to have the same shape, which improves the mass productivity of the mounting arms.

[0058] Embodiment 5. An elevator according to embodiment 5 will be described. Fig. 6 is a front view showing the configuration of a plurality of mounting arms of the elevator according to this embodiment. The up and down direction in Fig. 6 represents the vertical up and down direction.

[0059] As shown in Fig. 6, a plurality of elevator shaft devices 20-1 to 20-5 are attached to the car guide rail 11a. In this embodiment, each of the elevator shaft devices 20-1 to 20-5 is, for example, a landing plate. The elevator shaft devices 20-1 to 20-5 are provided at the same planar position within the elevator shaft 15. That is, when viewed along the vertical direction, the elevator shaft devices 20-1 to 20-5 are all arranged overlapping each other. The elevator shaft devices 20-1 to 20-5 are fixed to the car guide rail 11a by mounting arms 30-1 to 30-5, respectively.

[0060] Mounting arms 30-1, 30-2, 30-3, 30-4, and 30-5 are arranged in this order from above. All of the mounting arms 30-1 to 30-5 have the same shape. When viewed vertically, all of the mounting arms 30-1 to 30-5 are arranged to overlap each other. All of the mounting arms 30-1 to 30-5 are arranged above the hoisting machine 14. Each of the mounting arms 30-1 to 30-5 is inclined so that the height position of the end 30b is lower than the height position of the end 30a. When viewed vertically, the tip 30d of the end 30b of each of the mounting arms 30-1 to 30-5 is arranged to overlap the hoisting machine 14.

[0061] Each of the mounting arms 30-1 to 30-5 has one component 43 attached as a dripping portion, which is the same as that in the third embodiment. The component 43 of each of the mounting arms 30-1 to 30-5 is in close contact with at least three surfaces of the mounting arm 30-1 to 30-5, including the lower surface 30c, the upper surface 30e, and one of the main surfaces. The components 43 of each of the mounting arms 30-1 to 30-5 all have the same shape.

[0062] Component 43 of mounting arm 30-1 is provided between end portions 30a and 30b of mounting arm 30-1. Component 43 of mounting arm 30-2 is provided between component 43 of mounting arm 30-1 and end portion 30b of mounting arm 30-2 when viewed vertically. In other words, component 43 of mounting arm 30-2 is provided closer to tip 30d than the position directly below component 43 of mounting arm 30-1.

[0063] Similarly, when viewed vertically, component 43 of mounting arm 30-3 is located between component 43 of mounting arm 30-2 and end 30b of mounting arm 30-3. When viewed vertically, component 43 of mounting arm 30-4 is located between component 43 of mounting arm 30-3 and end 30b of mounting arm 30-4. When viewed vertically, component 43 of mounting arm 30-5 is located between component 43 of mounting arm 30-4 and end 30b of mounting arm 30-5.

[0064] In this way, the components 43 of each of the mounting arms 30-1 to 30-5 are attached so as to approach the tip 30d as they go downward. The components 43 of each of the mounting arms 30-1 to 30-5 are arranged so as to overlap with the other mounting arms when viewed in the vertical direction. The components 43 of each of the mounting arms 30-1 to 30-5 are arranged so as not to overlap with the hoist 14 when viewed in the vertical direction.

[0065] In the above configuration, oil 40 dripping downward from component 43 of mounting arm 30-1 will, with a certain probability, hit mounting arm 30-2. Oil 40 adhering to mounting arm 30-2 flows along mounting arm 30-2 toward tip 30d. Component 43 of mounting arm 30-2 is located closer to tip 30d than the position directly below component 43 of mounting arm 30-1. Therefore, oil 40 reaches component 43 of mounting arm 30-2 before reaching tip 30d of mounting arm 30-2, and drips downward from component 43.

[0066] Similarly, oil 40 dripping downward from component 43 of mounting arm 30-2 will, with a certain probability, hit mounting arm 30-3. Oil 40 adhering to mounting arm 30-3 will reach component 43 of mounting arm 30-3 before reaching tip 30d of mounting arm 30-3, and will drip downward from component 43.

[0067] None of the components 43 of the mounting arms 30-1 to 30-5 are positioned so as to overlap with the hoisting machine 14 when viewed vertically. Therefore, oil 40 that drips from any of the components 43 and does not hit the other mounting arms does not directly adhere to the hoisting machine 14, but adheres to the floor surface at the bottom of the hoistway 15.

[0068] In this embodiment, the dropping portion of each mounting arm 30-1 to 30-5 has a configuration similar to that of part 43 in embodiment 3, but the dropping portion of each mounting arm 30-1 to 30-5 may also have a configuration similar to that of protrusion 41a in embodiment 1 or notch 42 in embodiment 2.

[0069] When the protrusions 41a are formed on each of the mounting arms 30-1 to 30-5, the protrusions 41a of the mounting arms 30-1 to 30-5 are arranged so as to approach the tip 30d as they extend downward. None of the protrusions 41a of the mounting arms 30-1 to 30-5 are arranged so as not to overlap with the hoisting machine 14 when viewed in the vertical direction.

[0070] When the notches 42 are formed in each of the mounting arms 30-1 to 30-5, the notches 42 of each of the mounting arms 30-1 to 30-5 are provided so as to approach the tip 30d as they extend downward. None of the notches 42 of the mounting arms 30-1 to 30-5 are positioned so as not to overlap with the hoist 14 when viewed vertically.

[0071] As described above, the elevator according to this embodiment includes the mounting arm 30-1, the mounting arm 30-2, the hoistway equipment 20-1, and the hoistway equipment 20-2. Each of the mounting arm 30-1 and the mounting arm 30-2 is fixed to the car guide rail 11a. The hoistway equipment 20-1 is attached to the mounting arm 30-1. The hoistway equipment 20-2 is attached to the mounting arm 30-2.

[0072] The mounting arm 30-2 is positioned below the mounting arm 30-1 and above the hoisting machine 14. The mounting arm 30-2 is positioned so as to overlap the mounting arm 30-1 when viewed vertically. The mounting arm 30-2 has an end 30a fixed to the car guide rail 11a and an end 30b to which the hoistway equipment 20-2 is attached. The mounting arm 30-2 is inclined so that the height position of the end 30b is lower than the height position of the end 30a. A component 43 that drips oil running down the mounting arm 30-2 is provided between the end 30a and the end 30b of the mounting arm 30-2. The tip 30d of the end 30b of the mounting arm 30-2 is positioned so as to overlap the hoisting machine 14 when viewed vertically. When viewed in the vertical direction, the part 43 of the mounting arm 30-2 is arranged between the part 43 of the mounting arm 30-1 and the end 30b of the mounting arm 30-2 so as not to overlap with the hoisting machine 14.

[0073] Here, mounting arm 30-1 is an example of a first mounting arm. Mounting arm 30-2 is an example of a second mounting arm. Hoistway equipment 20-1 is an example of a first shaft equipment. Hoistway equipment 20-2 is an example of a second shaft equipment. End 30a of mounting arm 30-2 is an example of a third end. End 30b of mounting arm 30-2 is an example of a fourth end. Part 43 of mounting arm 30-1 is an example of a first drop portion. Part 43 of mounting arm 30-2 is an example of a fifth drop portion.

[0074] According to this configuration, there is a certain probability that oil 40 dripping from component 43 of mounting arm 30-1 will hit mounting arm 30-2. The oil 40 adhering to mounting arm 30-2 will reach component 43 of mounting arm 30-2 before reaching tip 30d of mounting arm 30-2, and will drip downward from component 43. Component 43 of mounting arm 30-2 is positioned away from directly above hoisting machine 14. Therefore, oil 40 dripping from component 43 of mounting arm 30-2 will not adhere to hoisting machine 14. This makes it possible to prevent malfunctions of hoisting machine 14 caused by adhesion of oil 40.

[0075] Furthermore, with the above configuration, the mounting arms 30-1 and 30-2 can be made to have the same shape, which improves mass productivity of the mounting arms. Furthermore, the components 43 attached to the mounting arms 30-1 and 30-2 can be made to have the same shape, which improves mass productivity of the components 43.

[0076] Embodiment 6 An elevator according to embodiment 6 will now be described. Fig. 7 is a front view showing the configuration of a plurality of mounting arms of the elevator according to this embodiment. The up and down direction in Fig. 7 represents the vertical up and down direction.

[0077] As shown in FIG. 7, each of the mounting arms 30-1 to 30-5 is provided with one component 43 similar to that in the third embodiment as a drip section. A lower end 43a of each component 43 is connected to the car guide rail 11a by an oil guide component 44. The oil guide component 44 is configured to guide the oil 40 from the lower end 43a to the car guide rail 11a. The oil guide component 44 has, for example, a linear or band-like shape. A string, wire, or the like is used as the oil guide component 44. One end of the oil guide component 44 is connected to the lower end 43a. The other end of the oil guide component 44 is connected to the car guide rail 11a.

[0078] In this embodiment, when viewed in the vertical direction, the mounting arms 30-1 to 30-5 are arranged so as to overlap one another, but the mounting arms 30-1 to 30-5 do not have to overlap. Also, in this embodiment, when viewed in the vertical direction, the components 43 of the mounting arms 30-1 to 30-5 are arranged so as to overlap one another, but the components 43 of the mounting arms 30-1 to 30-5 do not have to overlap. The other configurations are the same as in embodiment 5.

[0079] As described above, in the elevator of this embodiment, the lower end 43a of the part 43 is connected to the car guide rail 11a by an oil guide part 44 that guides oil 40 from the lower end 43a to the car guide rail 11a.

[0080] According to this configuration, the oil 40 at the lower end 43a of the part 43 does not drip downward, but is returned to the car guide rail 11a by the oil guide part 44. This makes it possible to prevent the oil 40 from dripping from each of the mounting arms 30-1 to 30-5. Therefore, it is possible to suppress malfunctions of the hoisting machine 14 caused by adhesion of the oil 40.

[0081] In the above embodiment, the hoisting machine 14 is used as an example of the hoistway device, but the hoistway device may be another device such as a control panel. Even when the hoistway device is another device such as a control panel, problems such as contamination, deterioration, and failure may occur. Therefore, even when the hoistway device is another device such as a control panel, problems caused by adhesion of oil 40 can be suppressed.

[0082] In the above embodiment, the car guide rail 11a is taken as an example of the guide rail, but the guide rail may be the car guide rail 11b, the weight guide rail 13a, or the weight guide rail 13b.

[0083] The above-described embodiments can be implemented in combination with each other.

[0084] The above describes in detail preferred embodiments, but the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims.

[0085] Various aspects of the present disclosure are summarized below as appendices.

[0086] (Appendix 1) an elevator that ascends and descends in the elevator shaft; a guide rail for guiding the elevation of the lifting body; a first mounting arm fixed to the guide rail; a first hoistway device attached to the first mounting arm; and an intra-hoistway device installed in the hoistway below the first mounting arm; Equipped with the first mounting arm has a first end fixed to the guide rail and a second end to which the first hoistway equipment is attached; the first mounting arm is inclined so that the height position of the second end is lower than the height position of the first end, a tip of the second end of the first mounting arm is arranged to overlap with the hoistway device when viewed along the vertical direction; a first dripping portion that drips oil running down the first mounting arm is provided between the first end and the second end of the first mounting arm; An elevator in which the first drop section is arranged so as not to overlap with the hoistway device when viewed along the vertical direction. (Appendix 2) An elevator as described in Appendix 1, wherein the first dropping portion has a protrusion formed on the underside of the first mounting arm. (Appendix 3) The elevator of claim 1, wherein the first drop portion has a notch formed on the underside of the first mounting arm. (Appendix 4) the first dripping portion has a component formed separately from the first mounting arm and attached to the first mounting arm, 2. The elevator of claim 1, wherein the component protrudes downward from the underside of the first mounting arm. (Appendix 5) An elevator as described in Appendix 4, wherein the lower end of the part and the guide rail are connected by an oil guide part that guides oil from the lower end to the guide rail. (Appendix 6) a second mounting arm fixed to the guide rail; a second hoistway device attached to the second mounting arm; and Furthermore, a second dripping portion that drips oil running down the first mounting arm is provided between the first dripping portion and the second end of the first mounting arm, The second dripping portion is arranged so as not to overlap with the elevator shaft device when viewed along the vertical direction, the second mounting arm is disposed below the first mounting arm and above the hoistway device, the second mounting arm is disposed so as to overlap the first mounting arm when viewed along the vertical direction, the second mounting arm has a third end fixed to the guide rail and a fourth end to which the second hoistway equipment is attached; the second mounting arm is inclined so that the height position of the fourth end is lower than the height position of the third end, a tip of the fourth end of the second mounting arm is arranged to overlap with the hoistway device when viewed along the vertical direction, a third dripping portion that drips oil running down the second mounting arm is provided between the third end and the fourth end of the second mounting arm, a fourth dripping portion that drips oil running down the second mounting arm is provided between the third dripping portion and the fourth end of the second mounting arm, The third drop portion is arranged so as to overlap the first drop portion and not overlap the elevator shaft device when viewed along the vertical direction, An elevator described in any one of Appendix 1 to Appendix 4, wherein the fourth drop portion is arranged so as to overlap with the second drop portion but not with the elevator shaft device when viewed along the vertical direction. (Appendix 7) a second mounting arm fixed to the guide rail; a second hoistway device attached to the second mounting arm; and Furthermore, the second mounting arm is disposed below the first mounting arm and above the hoistway device, the second mounting arm is disposed so as to overlap the first mounting arm when viewed along the vertical direction, the second mounting arm has a third end fixed to the guide rail and a fourth end to which the second hoistway equipment is attached; the second mounting arm is inclined so that the height position of the fourth end is lower than the height position of the third end, a fifth dripping portion that drips oil running down the second mounting arm is provided between the third end and the fourth end of the second mounting arm, a tip of the fourth end of the second mounting arm is arranged to overlap with the hoistway device when viewed along the vertical direction, An elevator described in any one of Appendix 1 to Appendix 4, wherein the fifth drop portion is arranged between the first drop portion and the fourth end so as not to overlap with the elevator shaft device when viewed along the vertical direction. (Appendix 8) The elevator according to any one of Supplementary Note 1 to Supplementary Note 7, wherein the device in the hoistway is a hoisting machine or a control panel. [Explanation of symbols]

[0087] 10 car, 11a, 11b car guide rail, 11a1 back surface, 12 weight, 13a, 13b weight guide rail, 14 hoist, 15 elevator shaft, 20, 20-1, 20-2, 20-3, 20-4, 20-5 elevator shaft equipment, 30, 30-1, 30-2, 30-3, 30-4, 30-5 mounting arm, 30a, 30b end, 30c underside, 30d tip, 30e upper surface, 40 oil, 41a, 41b, 41c protrusion, 42 notch, 43 part, 43a lower end, 44 oil guide part.

Claims

1. an elevator that ascends and descends in the elevator shaft; a guide rail for guiding the elevation of the lifting body; a first mounting arm fixed to the guide rail; a first hoistway device attached to the first mounting arm; and an intra-hoistway device installed in the hoistway below the first mounting arm; Equipped with the first mounting arm has a first end fixed to the guide rail and a second end to which the first hoistway equipment is attached; the first mounting arm is inclined so that the height position of the second end is lower than the height position of the first end, a tip end of the second end of the first mounting arm is arranged to overlap with the hoistway device when viewed along the vertical direction, a first dripping portion for dripping oil running down the first mounting arm is provided between the first end and the second end of the first mounting arm; An elevator in which the first drip section is arranged so as not to overlap with the hoistway device when viewed along the vertical direction.

2. 2. The elevator according to claim 1, wherein the first dropping portion has a protrusion formed on the underside of the first mounting arm.

3. 2. The elevator according to claim 1, wherein the first drop portion has a notch formed in a lower surface of the first mounting arm.

4. the first dripping portion has a component formed separately from the first mounting arm and attached to the first mounting arm, 2. The elevator of claim 1, wherein the component projects downwardly from the underside of the first mounting arm.

5. 5. The elevator according to claim 4, wherein the lower end of the component and the guide rail are connected by an oil guide component that guides oil from the lower end to the guide rail.

6. a second mounting arm fixed to the guide rail; a second hoistway device attached to the second mounting arm; and Furthermore, a second dripping portion that drips oil running down the first mounting arm is provided between the first dripping portion and the second end of the first mounting arm; The second dripping section is arranged so as not to overlap with the hoistway device when viewed along the vertical direction, the second mounting arm is disposed below the first mounting arm and above the hoistway device, the second mounting arm is disposed so as to overlap the first mounting arm when viewed along the vertical direction, the second mounting arm has a third end fixed to the guide rail and a fourth end to which the second hoistway equipment is attached; the second mounting arm is inclined so that the height position of the fourth end is lower than the height position of the third end, a tip end of the second mounting arm is disposed so as to overlap with the hoistway device when viewed along the vertical direction; a third dripping portion through which oil running down the second mounting arm drips is provided between the third end and the fourth end of the second mounting arm; a fourth dripping portion that drips oil running down the second mounting arm is provided between the third dripping portion and the fourth end of the second mounting arm, The third drop portion is arranged so as to overlap the first drop portion and not overlap the elevator shaft device when viewed along the vertical direction, An elevator as described in any one of claims 1 to 4, wherein the fourth drop portion is arranged so as to overlap with the second drop portion but not with the elevator shaft device when viewed along the vertical direction.

7. a second mounting arm fixed to the guide rail; a second hoistway device attached to the second mounting arm; and Furthermore, the second mounting arm is disposed below the first mounting arm and above the hoistway device, the second mounting arm is disposed so as to overlap the first mounting arm when viewed along the vertical direction, the second mounting arm has a third end fixed to the guide rail and a fourth end to which the second hoistway equipment is attached; the second mounting arm is inclined so that the height position of the fourth end is lower than the height position of the third end, a fifth dripping portion that drips oil running down the second mounting arm is provided between the third end and the fourth end of the second mounting arm, a tip end of the second mounting arm is disposed so as to overlap with the hoistway device when viewed along the vertical direction; An elevator as described in any one of claims 1 to 4, wherein the fifth drop portion is arranged between the first drop portion and the fourth end so as not to overlap with the elevator shaft device when viewed along the vertical direction.

8. The elevator according to any one of claims 1 to 5, wherein the device in the hoistway is a hoisting machine or a control panel.

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