elevator equipment

Abstract

To provide an elevator device capable of suppressing an increase in equipment cost.SOLUTION: An elevator device has a car 1 that moves up and down a hoistway 20, equipment on the hoistway that is arranged above the car 1 in the hoistway 20, and a handrail device 14 provided on the top surface of the car 1. The equipment on the hoistway is arranged to overlap at least a part of an edge 4a of the top surface of the car 1 when viewed along the lifting direction of the car 1. The handrail device 14 is formed along the edge 4a. The handrail device 14 has an upper crosspiece 7 and a middle crosspiece 6 formed below the upper crosspiece 7. When viewed along the lifting direction of the car 1, the middle crosspiece 6 is arranged on the outside of the upper crosspiece 7, and on the inside of the equipment on the hoistway with a gap 21 in between.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an elevator system including a handrail device provided on an upper surface of a car. [Background technology]

[0002] Patent Document 1 discloses an elevator. The elevator has a car and a drive unit arranged above the car. When viewed vertically, a portion of the drive unit overlaps with the car. A balustrade is provided on the upper surface of the car where it overlaps with the drive unit. The balustrade has multiple vertical supports, a handrail, and a bar. The handrail is suspended horizontally between the vertical supports. The handrail is interrupted where it overlaps with the drive unit. The bar is offset inward from the handrail and extends horizontally. Both ends of the bar are connected to the vertical supports via spacers. This prevents contact between the balustrade and the drive unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US Patent Application Publication No. 2013 / 0092479 Summary of the Invention [Problem to be solved by the invention]

[0004] In the elevator described above, to prevent workers from entering the outside of the railing, it is necessary to install an obstacle separate from the railing on the outside of the railing. 。

[0005] The present disclosure has been made to solve the above-mentioned problems, The handrail device ensures a sufficiently wide distance between the worker on the car canopy surface and the hoistway upper equipment, while a part of the handrail device prevents the worker from entering the edge side of the car canopy surface that overlaps with the hoistway upper equipment when viewed along the direction of the car's ascent and descent. The object of the present invention is to provide an elevator device that can [Means for solving the problem]

[0006] The elevator system of the present disclosure comprises a car that moves up and down a hoistway, hoistway upper equipment arranged above the car in the hoistway, and a handrail device provided on the upper surface of the car, wherein the hoistway upper equipment is arranged so as to overlap with at least a portion of the edge of the upper surface when viewed along the direction in which the car moves up and down, and the handrail device is formed along the edge, and the handrail device has an upper rail and a middle rail formed below the upper rail, and when viewed along the direction in which the handrail device moves up and down, the middle rail is arranged outward from the upper rail and is arranged inward from the hoistway upper equipment across a gap. [Effects of the Invention]

[0007] According to the present disclosure, The handrail device ensures a sufficiently wide distance between the worker on the car canopy surface and the hoistway upper equipment, while a part of the handrail device prevents the worker from entering the edge side of the car canopy surface that overlaps with the hoistway upper equipment when viewed along the direction of the car's ascent and descent. It is possible. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a side view of an elevator apparatus according to a first embodiment. [Figure 2] 1 is a top view of an elevator apparatus according to a first embodiment. [Figure 3] FIG. 10 is a top view of an elevator apparatus according to a second embodiment. [Figure 4] FIG. 10 is a side view of an elevator apparatus according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 An elevator apparatus according to a first embodiment will be described. Fig. 1 is a side view of the elevator apparatus according to this embodiment. The up and down direction in Fig. 1 represents the ascending and descending direction of a car 1. Fig. 1 shows a state in which the car 1 is at the upper end position of its movable range. Fig. 2 is a top view of the elevator apparatus according to this embodiment. Fig. 2 shows the elevator apparatus as seen from above along the ascending and descending direction of the car 1. In this embodiment, the ascending and descending direction of the car 1 is the vertical up and down direction.

[0010] As shown in Figures 1 and 2, a car 1 is provided in an elevator shaft 20. The car 1 is configured to move up and down the elevator shaft 20. The car 1 has an interior cab for carrying passengers or baggage. A car canopy surface 4 is provided on the top of the car 1. Workers performing maintenance work on the elevator can stand on the car canopy surface 4.

[0011] Hoistway upper equipment is installed at the top of the hoistway 20. The hoistway upper equipment in this embodiment includes a hoist 10, a hoist machine base 11, a hoist sheave 12, etc. The hoistway upper equipment is arranged above the car 1. When viewed along the direction of ascent and descent of the car 1, a portion of the hoistway upper equipment is arranged to overlap a portion of the car 1. In other words, when viewed along the direction of ascent and descent of the car 1, the hoistway upper equipment is arranged to overlap at least a portion of edge 4a of the multiple edges of the car canopy surface 4.

[0012] The car 1 has car vertical pillars 2 and car upper beams 3. The car vertical pillars 2 and car upper beams 3 are part of the structure that supports the car chamber.

[0013] A handrail device 14 is provided on the car canopy surface 4. The handrail device 14 is supported by the car upper beam 3. The handrail device 14 is formed along three edges of the car canopy surface 4, including the edge 4a.

[0014] The handrail device 14 has an upper rail 7, a middle rail 6, a connecting post 8, and a support base 9. The upper rail 7, middle rail 6, and connecting post 8 are rod-shaped or pipe-shaped members. The support base 9 is a plate-shaped member. The upper rail 7, middle rail 6, connecting post 8, and support base 9 are connected to the car upper beam 3 via the handrail support posts 5. The upper rail 7 and middle rail 6 are each arranged horizontally so as to be parallel to the edge of the car canopy surface 4. The middle rail 6 is arranged below the upper rail 7 and above the car canopy surface 4. The connecting post 8 extends in the vertical direction.

[0015] The portion of the handrail device 14 along the edge other than the edge 4a is made up of an upper rail 7, a middle rail 6, a connecting post 8, etc. When viewed along the ascending and descending direction of the car 1, the upper rail 7 and the middle rail 6 overlap. The upper rail 7 and the middle rail 6 are connected by the connecting post 8.

[0016] The portion of the handrail device 14 along the edge 4a is composed of an upper rail 7, a middle rail 6, a connecting post 8, a support base 9, etc. The upper rail 7 is connected to the connecting post 8. The support base 9 is connected to the connecting post 8. The support base 9 protrudes horizontally from the connecting post 8 towards the edge 4a. The middle rail 6 is connected to the connecting post 8 and the upper rail 7 via the support base 9. The middle rail 6 is located closer to the edge 4a than the connecting post 8 and the upper rail 7.

[0017] When viewed along the ascending / descending direction of the car 1, the positional relationship between the upper rail 7 and the middle rail 6 in the portion of the handrail device 14 along the edge 4a is as follows: Both the upper rail 7 and the middle rail 6 are located inside the edge 4a. "Inside" refers to the center of the car when viewed along the ascending / descending direction of the car 1. The upper rail 7 is offset inward relative to the middle rail 6. As a result, the middle rail 6 is located outside the upper rail 7. The middle rail 6 is located inside the hoistway upper equipment, with a gap 21 in between. A horizontal distance is maintained between the middle rail 6 and the hoistway upper equipment so that they do not interfere with each other in plan. It is desirable to position the middle rail 6 as close to the edge 4a as possible while maintaining a horizontal distance from the hoistway upper equipment. Because the upper rail 7 is located inside the middle rail 6, a gap is also formed between the upper rail 7 and the hoistway upper equipment.

[0018] Here, in this embodiment, a hoist 10, a hoist machine base 11, and a hoist sheave 12 are provided as the hoistway upper equipment, but equipment other than a hoist, such as a lifting beam, a lifting hook, and an upper return sheave, may also be provided as the hoistway upper equipment.

[0019] In this embodiment, the hoistway upper equipment is arranged so as to overlap with edge 4a of car canopy surface 4 when viewed along the ascending and descending direction of car 1, but the hoistway upper equipment may also be arranged so as to overlap with one or more edges of car canopy surface 4 other than edge 4a. In this case, in the portion of handrail device 14 that is along the one or more edges, upper rail 7 and middle rail 6 are arranged so as to have the above-mentioned positional relationship.

[0020] The handrail device 14 in this embodiment is arranged along three edges of the car canopy surface 4. However, the portions of the handrail device 14 along the edges that do not overlap with the hoistway upper equipment may be omitted as needed. In other words, the handrail device 14 may be formed only along the edges that overlap with the hoistway upper equipment when viewed along the ascending and descending direction of the car 1.

[0021] Although the handrail device 14 in this embodiment is connected to the car upper beam 3 via the handrail support pole 5, the handrail device 14 may be connected directly to the car canopy surface 4.

[0022] According to this embodiment, the following effects can be obtained.

[0023] In this embodiment, when viewed along the ascending and descending direction of the car 1, the hoistway upper equipment is arranged to overlap with the car 1. This allows the horizontal area required for the hoistway 20 to be reduced.

[0024] In this embodiment, when viewed along the ascending and descending direction of the car 1, the upper rail 7 is disposed inside the hoistway upper equipment, and a gap is formed between the upper rail 7 and the hoistway upper equipment. This makes it possible to ensure a sufficiently wide distance between the space inside the upper rail 7 and the hoistway upper equipment.

[0025] In this embodiment, the middle rail 6, which is provided in the portion of the handrail device 14 along the edge 4a, is positioned between the upper rail 7 and the hoistway upper equipment in the horizontal direction, and is positioned lower than the upper rail 7 in the vertical direction. As a result, the middle rail 6 functions as an obstacle located closer to the edge 4a than the upper rail 7. This makes it possible to prevent there from being sufficient space for workers to enter closer to the edge 4a than the upper rail 7. Therefore, it is possible to prevent workers from entering closer to the edge 4a than the upper rail 7. Furthermore, because there is no need to provide an obstacle separately from the handrail device 14, it is possible to suppress increases in equipment costs due to increased materials and parts.

[0026] In this embodiment, when viewed along the ascending and descending direction of the car 1, at least the middle rail 6 and the gap 21 are present between the upper rail 7 and the hoistway upper equipment. Therefore, a sufficiently wide distance can be secured between the upper rail 7 and the hoistway upper equipment.

[0027] As described above, the elevator system according to this embodiment includes the car 1, an upper hoistway device, and the handrail device 14. The car 1 is configured to move up and down the hoistway 20. The upper hoistway device is disposed above the car 1 in the hoistway 20. The handrail device 14 is provided on the car canopy surface 4 of the car 1. Here, the car canopy surface 4 is an example of the top surface of the car 1.

[0028] When viewed along the ascending and descending direction of the car 1, the hoistway upper equipment is arranged to overlap at least a part of the edge 4a of the car canopy surface 4. The handrail device 14 is formed along the edge 4a. The handrail device 14 has an upper rail 7 and a middle rail 6. The middle rail 6 is formed below the upper rail 7. When viewed along the ascending and descending direction of the car 1, the middle rail 6 is arranged further outward than the upper rail 7. When viewed along the ascending and descending direction of the car 1, the middle rail 6 is arranged further inward than the hoistway upper equipment, with a gap 21 in between.

[0029] With this configuration, the middle rail 6 functions as an obstacle, preventing workers from entering the area closer to the edge 4a than the upper rail 7. Also, because there is no need to provide an obstacle separately from the handrail device 14, increases in equipment costs due to an increase in materials and parts can be suppressed. Furthermore, when viewed along the ascending and descending direction of the car 1, at least the middle rail 6 and the gap 21 exist between the upper rail 7 and the hoistway upper equipment, so a sufficiently wide distance can be ensured between the upper rail 7 and the hoistway upper equipment.

[0030] Embodiment 2 An elevator apparatus according to a second embodiment will now be described. Fig. 3 is a top view of the elevator apparatus according to this embodiment. Fig. 3 shows the elevator apparatus as seen along the ascending and descending direction of the car 1. The elevator apparatus according to this embodiment differs from the first embodiment in the shape of the upper rail 7 in the portion along the edge 4a. The other configurations are the same as those of the first embodiment.

[0031] As shown in FIG. 3 , the upper rail 7 formed along the edge 4a has a first portion 7a, a second portion 7b, and a third portion 7c. The first portion 7a is adjacent to the hoistway upper equipment when viewed along the ascending / descending direction of the car 1. In this embodiment, of the upper rail 7, only the first portion 7a, which is adjacent to the hoistway upper equipment in plan view, is offset inward relative to the middle rail 6. The second portion 7b, which is not adjacent to the hoistway upper equipment in plan view, overlaps with the middle rail 6 when viewed along the ascending / descending direction of the car 1. Both the first portion 7a and the second portion 7b extend parallel to the edge 4a. The first portion 7a and the second portion 7b are connected by the third portion 7c. The third portion 7c extends in a direction intersecting the edge 4a.

[0032] According to this embodiment, compared to the first embodiment, a larger space can be secured on the car canopy surface 4 where the worker can move about, thereby improving workability.

[0033] Embodiment 3 An elevator apparatus according to a third embodiment will now be described. Fig. 4 is a side view of the elevator apparatus according to this embodiment. The up and down direction in Fig. 4 represents the ascending and descending direction of the car 1. The elevator apparatus according to this embodiment differs from the first embodiment in that a protective cover 13 is provided between the upper rail 7 and the middle rail 6. The other configurations are the same as those of the first embodiment.

[0034] As shown in FIG. 4, the protective cover 13 is provided on a portion of the handrail device 14 that is along the edge portion 4a. The protective cover 13 covers the upper rail 7, the middle rail 6, and the gap 22 between them from the outside. The gap 22 between the upper rail 7 and the middle rail 6 is closed by the protective cover 13. When viewed along the ascending and descending direction of the car 1, a gap is formed between the protective cover 13 and the hoistway upper equipment. A horizontal distance is ensured between the protective cover 13 and the hoistway upper equipment that is sufficient to prevent them from interfering with each other in plan view. The provision of the protective cover 13 reliably prevents the worker's body from protruding beyond the middle rail 6 through the gap 22.

[0035] As described above, in the elevator system according to this embodiment, the protective cover 13 is provided between the upper rail 7 and the middle rail 6. Here, the protective cover 13 is an example of a cover. With this configuration, it is possible to reliably prevent the worker's body from protruding outside the middle rail 6.

[0036] The above-described embodiments can be implemented in combination with each other. [Explanation of symbols]

[0037] 1 Cage, 2 Cage vertical pillar, 3 Cage upper beam, 4 Cage canopy surface, 4a Edge, 5 Handrail support pillar, 6 Middle rail, 7 Upper rail, 7a First part, 7b Second part, 7c Third part, 8 Connecting pillar, 9 Support base, 10 Hoisting machine, 11 Hoisting machine base, 12 Hoisting machine sheave, 13 Protective cover, 14 Handrail device, 20 Hoistway, 21, 22 Clearance.

Claims

1. A car having a car canopy surface and ascending and descending in a hoistway, an elevator shaft upper device disposed above the car in the elevator shaft; a handrail device provided on the car canopy surface; Equipped with When viewed along the lifting direction of the car, the outer peripheral portion of the car canopy surface has a plurality of edges, the plurality of edge portions include an edge portion that overlaps with the hoistway upper equipment when viewed along the lifting direction of the car, the handrail device has an upper rail and a middle rail that are horizontally arranged so as to be parallel to an edge portion that overlaps with the elevator shaft upper equipment, The middle rail is disposed below the upper rail and above the car canopy surface, When viewed along the ascending and descending direction of the car, the middle rail is located closer to the edge that overlaps with the hoistway upper equipment than the upper rail, and is an elevator device that is arranged between the upper rail and the hoistway upper equipment.

2. The elevator apparatus according to claim 1, wherein a cover is provided between the upper rail and the middle rail.

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