Elevator rope attachment device

Abstract

To provide an elevator rope attachment device capable of more reliably adjusting the position of a rope end relative to a fixed part. [Solution] In a counterweight-side rope attachment device 8, which is a rope attachment device for an elevator, a connecting member 811 of a support part 81 has a rod part 811a. A first support attachment tool 812 attaches the rod part 811a to a machine base 5 as a fixed part. A second support attachment tool 813 attaches a hanging member 821 to the connecting member 811. A rope end attachment tool 822 attaches a second rope end 42 to the hanging member 821. The position of the second rope end 42 relative to the hanging member 821 can be adjusted in the vertical direction by the rope end attachment tool 822. The position of the support part 81 relative to the machine base 5 can be adjusted along the rod part 811a by the first support attachment tool 812.

Description

[Technical field]

[0001] The present disclosure relates to elevator rope attachment devices. [Background technology]

[0002] In general, in a traction elevator, the car and the counterweight are suspended by a rope. A car side shock absorber and a counterweight side shock absorber are installed at the bottom of the elevator shaft. The dimension between the counterweight and the counterweight side shock absorber when the car stops at the top floor, i.e., the counterweight side run-by dimension, is required to be maintained within a specified range. However, the rope is always subjected to the loads of the car and the counterweight. For this reason, the rope stretches over time. This causes the positional relationship between the car and the counterweight to change over time, and the counterweight side run-by dimension may become smaller than the specified range.

[0003] Patent Document 1 discloses an elevator rope length adjustment device in which a rod attached to the end of a rope is supported on a support plate via a spring, and the position of the rod is adjusted relative to the support plate to adjust the positional relationship between the car and the counterweight. A spring fixing nut that is attached to the support plate via a spring is screwed onto the rod. In the rope length adjustment device, the position of the spring fixing nut is adjusted relative to the rod, thereby adjusting the position of the rod relative to the support plate. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-55953 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the conventional elevator rope length adjustment device disclosed in Patent Document 1, the position of the rod attached to the end of the rope is adjusted relative to the support plate only within the range of the length of the rod. Therefore, if the amount of stretch in the rope becomes greater than the range of the length of the rod, the position of the rod cannot be adjusted relative to the support plate within the range of the amount of stretch in the rope that exceeds the length of the rod.

[0006] The present disclosure is devised to solve the above-mentioned problems, and aims to provide an elevator rope attachment device that can more reliably adjust the position of the rope end relative to the fixed part. [Means for solving the problem]

[0007] The elevator rope attachment device according to the present disclosure comprises a support part attached to a fixed part arranged horizontally at the top of the hoistway, and a rope stopper attached to the support part at a position spaced downward from the fixed part, the rope stopper having a hanging member and a rope end attachment tool for attaching the rope end, which is the end of the rope that suspends the lifting body, to the hanging member in a state in which the rope end is spaced downward from the fixed part, the support part having a connecting member, a first support attachment tool for attaching the connecting member to the fixed part, and a second support attachment tool for attaching the connecting member to the hanging member, the connecting member being arranged along the vertical direction. At least one of the fixed part and the hanging member is a rod attachment target part to which the rod part is attached, and of the first support attachment tool and the second support attachment tool, the support attachment tool that attaches the rod part to the rod attachment target part is a support position adjustment tool, and the position of the rope end relative to the hanging member can be adjusted in the vertical direction by the rope end attachment tool, and the position of the support part relative to the rod attachment target part can be adjusted along the rod part by the support position adjustment tool, and the fixed part is fixed on both sides of the place where the support part is attached in the horizontal direction. The fixed part is an architectural beam, the connecting member is arranged along the vertical direction, the first support mounting fixture attaches the upper end of the connecting member to the architectural beam, and the connecting member hangs downward from the architectural beam. In addition, the elevator rope attachment device according to the present disclosure includes a support part attached to a fixed part arranged horizontally at the top of the hoistway, and a rope stopper attached to the support part at a position spaced downward from the fixed part, the rope stopper having a hanging member and a rope end attachment tool for attaching the rope end, which is the end of the rope that suspends the lifting body, to the hanging member in a state where the rope end is spaced downward from the fixed part, the support part having a connecting member, a first support attachment tool for attaching the connecting member to the fixed part, and a second support attachment tool for attaching the connecting member to the hanging member, the connecting member having a rod part arranged along the vertical direction, and at least one of the fixed part and the hanging member being a rod attachment target part to which the rod part is attached, the first support attachment tool Of the first support mounting fixture and the second support mounting fixture, the support mounting fixture that mounts the rod portion to the rod mounting target portion is a support position adjustment fixture, and the position of the rope end relative to the hanging member can be adjusted in the vertical direction by the rope end mounting fixture, and the position of the support portion relative to the rod mounting target portion can be adjusted along the rod portion by the support position adjustment tool, and the fixed portion is fixed on both sides of the point where the support portion is attached in the horizontal direction, and the fixed portion is a protruding plate portion that protrudes horizontally from the main body of the machine table at the top of the machine table that receives the load of the drive device that generates the driving force to move the lifting body, and the machine table is supported by a support structure that is fixed within the hoistway, reaches from the bottom of the hoistway to the top of the hoistway, and fixes the car guide rails and the counterweight guide rails. Effect of the Invention

[0008] According to the present disclosure, the position of the rope end relative to the fixed part can be adjusted more reliably. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic configuration diagram showing an elevator according to a first embodiment. [Diagram 2] 2 is a perspective view showing the counterweight-side rope attachment device of FIG. 1 as viewed from the front side of the hoisting machine. FIG. [Diagram 3] 3 is a perspective view showing the counterweight-side rope attachment device of FIG. 2 as viewed from the rear side of the hoisting machine. FIG. [Figure 4] FIG. 11 is a front view showing a counterweight-side rope mounting device of an elevator in accordance with embodiment 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The embodiments for carrying out the subject of the present disclosure will be described with reference to the attached drawings. In each drawing, the same or corresponding parts are given the same reference numerals, and duplicated descriptions are appropriately simplified or omitted. Note that the subject of the present disclosure is not limited to the following embodiments, and any component of the embodiment may be modified or omitted within the scope of the gist of the present disclosure.

[0011] Embodiment 1 Fig. 1 is a schematic diagram showing an elevator according to embodiment 1. In the figure, a car 2 and a counterweight 3 are suspended as lifting bodies by multiple ropes 4 in a hoistway 1. For simplicity, only one rope 4 is shown in Fig. 1.

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

[0013] The counterweight 3 has a counterweight body 31 and a weight hoisting wheel 32. The weight hoisting wheel 32 is provided on the upper part of the counterweight body 31.

[0014] A machine table 5 is disposed at the top of the hoistway 1. The machine table 5 is fixed to a support structure (described later) that is fixed within the hoistway 1. A hoist 6, which serves as a driving device, is placed on the machine table 5. Therefore, the machine table 5 bears the load of the hoist 6. The hoist 6 generates a driving force that moves the car 2 and the counterweight 3.

[0015] The hoist 6 has a hoist body 61 and a drive sheave 62. The drive sheave 62 is provided in the hoist body 61. The hoist body 61 has a motor. The motor of the hoist body 61 generates a drive force that rotates the drive sheave 62.

[0016] Two rope attachment devices are provided on the machine base 5. That is, the machine base 5 is provided with a car-side rope attachment device 7 and a counterweight-side rope attachment device 8. The counterweight-side rope attachment device 8 is disposed at a position closer to the hoist 6 than the car-side rope attachment device 7.

[0017] Of both ends of each rope 4, one end is a first rope end 41 and the other end is a second rope end 42. The first rope end 41 is a rope end that can be attached to the car side rope attachment device 7. The second rope end 42 is a rope end that can be attached to the counterweight side rope attachment device 8. Each first rope end 41 is attached to the car side rope attachment device 7. Each second rope end 42 is attached to the counterweight side rope attachment device 8.

[0018] Each rope 4 is wound from the car-side rope attachment device 7 around the pair of car hoisting sheaves 22, the drive sheave 62, and the weight hoisting sheave 32 in that order, and reaches the counterweight-side rope attachment device 8. The car 2 and the counterweight 3 move up and down in the hoistway 1 in response to the rotation of the drive sheave 62. As a result, the movement direction of the car 2 and the movement direction of the counterweight 3 are opposite to each other.

[0019] A pair of car guide rails 11 and a pair of counterweight guide rails 12 are installed vertically in the hoistway 1. The upper end of each car guide rail 11 and one of the counterweight guide rails 12 is located at a position higher than the hoisting machine 6. The upper end of the other counterweight guide rail 12 supports the underside of the machine bed 5.

[0020] The car 2 is disposed between a pair of car guide rails 11. The car 2 moves in the vertical direction while being guided by the pair of car guide rails 11. The counterweight 3 is disposed between a pair of counterweight guide rails 12. The counterweight 3 moves in the vertical direction while being guided by the pair of counterweight guide rails 12.

[0021] The car 2 moves vertically within a car movement range set within the hoistway 1. The counterweight 3 moves vertically within a counterweight movement range adjacent to the car movement range. The counterweight movement range is set below the machine base 5. The counterweight-side rope attachment device 8 is disposed above the counterweight movement range and below the hoist 6.

[0022] A car-side shock absorber 13 and a counterweight-side shock absorber 14 are provided at the bottom of the elevator shaft 1. The car-side shock absorber 13 is located below the range in which the car moves. The counterweight-side shock absorber 14 is located below the range in which the counterweight moves.

[0023] Fig. 2 is a perspective view showing the counterweight-side rope attachment device 8 in Fig. 1 as viewed from the front side of the hoisting machine 6. Fig. 3 is a perspective view showing the counterweight-side rope attachment device 8 in Fig. 2 as viewed from the rear side of the hoisting machine 6. A support structure 15 fixed in the hoistway 1 reaches from the bottom of the hoistway 1 to the top of the hoistway 1. The machine base 5 is supported by the support structure 15. Each car guide rail 11 and each counterweight guide rail 12 are fixed to the support structure 15.

[0024] The machine base 5 has an overhanging plate portion 51 as a fixed portion. The overhanging plate portion 51 is a part of the machine base 5. The overhanging plate portion 51 overhangs horizontally from the main body of the machine base 5 at the upper part of the machine base 5. As a result, the overhanging plate portion 51 is disposed horizontally at the upper part of the hoistway 1. In this embodiment, the overhanging plate portion 51 bears part of the load of the hoisting machine 6.

[0025] The counterweight-side rope attachment device 8 has a support part 81 and a rope stopper part 82. The support part 81 is attached to the overhanging plate part 51 of the machine base 5. The rope stopper part 82 is attached to the support part 81 at a position spaced downward from the overhanging plate part 51.

[0026] The rope stopper 82 has a hanging member 821 and a plurality of rope end mounting fixtures 822 .

[0027] The hanging member 821 is provided with a plurality of rope end through holes (not shown). The plurality of rope end through holes correspond to a plurality of second rope ends 42. Each second rope end 42 has an end rod 421. Each end rod 421 is passed through a corresponding rope end through hole of the hanging member 821 in the vertical direction. A threaded portion is formed on the outer circumferential surface of the end rod 421.

[0028] The multiple rope end attachments 822 correspond to the multiple second rope ends 42. Each rope end attachment 822 attaches a corresponding second rope end 42 to the hanging member 821. Each second rope end 42 is attached to the hanging member 821 in a state spaced downward from the overhanging plate portion 51. The downward load applied to each rope 4 is applied to the hanging member 821 from each second rope end 42 via the rope end attachments 822.

[0029] Each rope end mounting device 822 has a slip-off prevention member 823 and a spring 824 .

[0030] The slip-out prevention member 823 is attached to the end rod 421 of the corresponding second rope end 42. The slip-out prevention member 823 has a plurality of nuts. The multiple nuts of the slip-out prevention member 823 are screwed onto the end rod 421 in an overlapping manner. In this way, the slip-out prevention member 823 is attached to the end rod 421 above the hanging member 821. The position of the slip-out prevention member 823 relative to the end rod 421 can be adjusted along the end rod 421 by turning the multiple nuts of the slip-out prevention member 823.

[0031] The spring 824 is disposed between the detachment prevention member 823 and the hanging member 821. The detachment prevention member 823 is hung on the hanging member 821 via the spring 824. The spring 824 receives a downward load applied to the rope 4 from the detachment prevention member 823. As a result, the spring 824 contracts while being elastically deformed between the detachment prevention member 823 and the hanging member 821. In the rope end mounting device 822, the detachment prevention member 823 is hung on the hanging member 821 via the spring 824, thereby preventing the terminal rod 421 from slipping out downward from the hanging member 821.

[0032] The position of the second rope end 42 relative to the hanging member 821 can be adjusted along the end rod 421 by adjusting the position of the slippage prevention member 823 relative to the end rod 421. As a result, the position of the second rope end 42 relative to the hanging member 821 can be adjusted in the vertical direction by the rope end mounting tool 822.

[0033] The support portion 81 has a pair of connecting members 811, a pair of first support fixtures 812, and a pair of second support fixtures 813. The first support fixtures 812 are support fixtures that attach the connecting members 811 to the protruding plate portion 51 of the machine base 5. The second support fixtures 813 are support fixtures that attach the connecting members 811 to the hanging members 821.

[0034] The pair of first support mounting fixtures 812 and the pair of second support mounting fixtures 813 correspond to the pair of connecting members 811. Each first support mounting fixture 812 mounts the corresponding connecting member 811 to the protruding plate portion 51 of the machine base 5. Each second support mounting fixture 813 mounts the corresponding connecting member 811 to the hanging member 821.

[0035] 3, a plurality of through holes 511 are provided in the protruding plate portion 51 of the machine base 5. The pair of connecting members 811 are passed through two of the plurality of through holes 511.

[0036] The coupling member 811 has a rod portion 811a and a connecting portion 811b. The rod portion 811a is disposed along the up-down direction. A threaded portion is formed on the outer circumferential surface of the rod portion 811a. The connecting portion 811b is fixed to the lower end portion of the rod portion 811a.

[0037] The protruding plate portion 51 of the machine base 5 serves as a rod attachment target portion to which the rod portion 811a is attached. Each of the first support attachment fixtures 812 attaches the rod portion 811a of the corresponding connecting member 811 to the protruding plate portion 51.

[0038] The first support mounting fixture 812 has a plurality of nuts. The plurality of nuts of the first support mounting fixture 812 are screwed onto the rod portion 811a in a stacked manner. In this way, the first support mounting fixture 812 is attached to the rod portion 811a above the overhanging plate portion 51. The position of the first support mounting fixture 812 relative to the rod portion 811a can be adjusted along the rod portion 811a by turning the plurality of nuts of the first support mounting fixture 812.

[0039] The first support fixture 812 is hung from above on the overhanging plate portion 51. This prevents the rod portion 811a from slipping downward from the overhanging plate portion 51. The rod portion 811a is attached to the overhanging plate portion 51 by the first support fixture 812 being hung on the overhanging plate portion 51.

[0040] The position of the rod portion 811a relative to the overhanging plate portion 51 can be adjusted along the rod portion 811a by adjusting the position of the first support mounting fixture 812 relative to the rod portion 811a. As a result, the position of the rod portion 811a relative to the overhanging plate portion 51 can be adjusted along the rod portion 811a by the first support mounting fixture 812. In other words, the first support mounting fixture 812 serves as a support position adjustment fixture that adjusts the position of the rod portion 811a relative to the overhanging plate portion 51.

[0041] Each second support fixture 813 attaches a connection portion 811b of a corresponding coupling member 811 to a hanging member 821. As a result, the hanging member 821 is located at a position spaced downward from the overhanging plate portion 51.

[0042] In this embodiment, a fastener that fastens the connection parts 811b and the hanging member 821 is used as the second support fixture 813. Also, in this embodiment, each connection part 811b is attached to the hanging member 821 so as to be rotatable around the second support fixture 813.

[0043] The loads of the car 2, the counterweight 3, etc. are constantly applied to each rope 4. As a result, each rope 4 stretches over time. When each rope 4 stretches, the positional relationship between the car 2 and the counterweight 3 changes. As a result, when each rope 4 stretches, the dimension between the counterweight 3 and the counterweight-side shock absorber 14 when the car 2 stops at the top floor, i.e., the counterweight-side run-by dimension, decreases. If the counterweight-side run-by dimension becomes smaller than the specified range, there is a risk of a malfunction, such as the counterweight 3 colliding with the counterweight-side shock absorber 14 when the car 2 stops at the top floor.

[0044] Therefore, if the counterweight side run-by dimension becomes smaller than the specified range due to elongation of each rope 4, the counterweight side run-by dimension is adjusted during elevator maintenance and inspection so that it falls within the specified range. The counterweight side run-by dimension is adjusted by adjusting the position of each second rope end 42 relative to the overhanging plate portion 51 in the counterweight side rope attachment device 8.

[0045] When adjusting the position of each second rope end 42 relative to the overhanging plate portion 51, first, the position of each first support mounting fixture 812 relative to each rod portion 811a is adjusted along the rod portion 811a. The position of the first support mounting fixture 812 relative to the rod portion 811a is adjusted by turning multiple nuts on the first support mounting fixture 812. This adjusts the position of the rope stopper portion 82 relative to the overhanging plate portion 51, and the positions of each second rope end 42 relative to the overhanging plate portion 51 are adjusted collectively.

[0046] Thereafter, if necessary, the position of at least one of the multiple second rope ends 42 is adjusted in the vertical direction relative to the hanging member 821. When adjusting the position of the second rope end 42 relative to the hanging member 821, the position of the removal prevention member 823 relative to the end rod 421 is adjusted along the end rod 421. The adjustment of the position of the removal prevention member 823 relative to the end rod 421 is performed by turning multiple nuts on the removal prevention member 823. This adjusts the position of the second rope end 42 relative to the hanging member 821. In this way, the counterweight side run-by dimension is adjusted to fall within the specified range.

[0047] In such an elevator counterweight-side rope attachment device 8, the support part 81 is attached to the overhanging plate part 51 of the machine base 5. The rope stopper part 82 is attached to the support part 81 at a position spaced downward from the overhanging plate part 51. In the rope stopper part 82, a rope end attachment tool 822 attaches the second rope end 42 to the hanging member 821. In the support part 81, a first support attachment tool 812 attaches the rod part 811a of the connecting member 811 to the overhanging plate part 51. The position of the second rope end 42 relative to the hanging member 821 can be adjusted in the vertical direction by the rope end attachment tool 822. The position of the support part 81 relative to the overhanging plate part 51 can be adjusted along the rod part 811a by the first support attachment tool 812. Therefore, in addition to the adjustment range of the position of the second rope end 42 with respect to the hanging member 821, the position of the second rope end 42 with respect to the overhanging plate portion 51 can also be adjusted within the range of the length of the rod portion 811a. As a result, even if the magnitude of elongation of each rope 4 exceeds the adjustment range of the position of the second rope end 42 with respect to the hanging member 821, the position of the second rope end 42 with respect to the overhanging plate portion 51 can be adjusted according to the magnitude of elongation of each rope 4. Therefore, the position of the second rope end 42 with respect to the overhanging plate portion 51 can be adjusted more reliably, and the counterweight side run-by dimension can be adjusted more reliably.

[0048] Here, when each rope 4 stretches and adjustment of the run-by dimension on the counterweight side is required, the run-by dimension on the counterweight side can be adjusted by cutting each rope 4 to shorten the actual length of each rope 4. However, the cutting work is more time-consuming than the adjustment work of the position of the second rope end 42 relative to the overhanging plate portion 51.

[0049] In this embodiment, the adjustment range of the position of the second rope end 42 relative to the overhanging plate portion 51 is expanded, so that the trimming work can be eliminated or the frequency of trimming work can be reduced. This makes it easy to adjust the run-by dimension on the counterweight side, and reduces the cost of elevator maintenance and inspection work. It also extends the life of the elevator.

[0050] Furthermore, since the multiple second rope ends 42 are attached to the rope stopper part 82, by adjusting the position of the support part 81 relative to the overhanging plate part 51, the positions of the multiple second rope ends 42 can be adjusted collectively relative to the overhanging plate part 51. This makes it possible to easily adjust the positions of the second rope ends 42 relative to the overhanging plate part 51, and shortens the time required to adjust the positions of the second rope ends 42 relative to the overhanging plate part 51.

[0051] In addition, in the counterweight side rope attachment device 8, the support part 81 is attached to the machine base 5. The machine base 5 is supported by the support structure 15. Therefore, the load applied to the counterweight side rope attachment device 8 can be supported by the machine base 5. This eliminates the need to install a mounting base that supports the counterweight side rope attachment device 8 below the machine base 5, and the counterweight side rope attachment device 8 can be arranged below the machine base 5, avoiding the space for installing each counterweight guide rail 12. Therefore, even if each counterweight guide rail 12 is not installed, the counterweight side rope attachment device 8 can be arranged below the machine base 5, and the suspended scaffolding can be suspended from the counterweight side rope attachment device 8. This allows the scaffolding-free construction method, in which a worker stands on the suspended scaffolding suspended from the counterweight side rope attachment device 8 to work, i.e., the WOS construction method, to be adopted as a construction method for installing an elevator. Therefore, for example, the installation of the counterweight guide rail 12 can be performed by the WOS method. This reduces the burden of elevator installation work. Also, the cost of elevator installation work can be reduced.

[0052] In the first embodiment, the machine base 5 is supported by the support structure 15. However, the machine base 5 may be supported by each car guide rail 11 and each counterweight guide rail 12. Even in this manner, the position of the second rope end 42 can be adjusted relative to the overhanging plate portion 51 within a range exceeding the adjustment range of the position of the second rope end 42 relative to the hanging member 821. Therefore, the position of the second rope end 42 relative to the overhanging plate portion 51 can be adjusted more reliably. Furthermore, in this manner, the support structure 15 can be eliminated, and the design freedom of the space in the hoistway 1 can be improved.

[0053] In the first embodiment, the connecting portion 811b of the connecting member 811 is attached to the hanging member 821. However, the connecting portion 811b of the connecting member 811 may be eliminated, and the rod portion 811a of the connecting member 811 may be attached to the hanging member 821. That is, the rod attachment target portion to which the rod portion 811a is attached may be the hanging member 821. In this case, the hanging member 821 is provided with a rod through hole through which the rod portion 811a passes. In this case, the rod portion 811a is attached to the hanging member 821 by the second support fixture 813. Furthermore, in this case, the second support fixture 813 has a plurality of nuts screwed into the rod portion 811a. In this case, the position of the rod portion 811a relative to the hanging member 821 is adjusted by turning the plurality of nuts in the second support fixture 813. Thereby, the second support fixture 813 serves as a support position adjustment tool that adjusts the position of the rod portion 811a relative to the hanging member 821. In this way, the position of the second rope end 42 relative to the overhanging plate portion 51 can be adjusted not only by adjusting the position of the rod portion 811a relative to the overhanging plate portion 51, but also by adjusting the position of the rod portion 811a relative to the hanging member 821.

[0054] Embodiment 2 4 is a front view showing an elevator counterweight side rope attachment device according to embodiment 2. At the top of the hoistway 1, a number of architectural beams 16 are arranged horizontally as fixing parts. The multiple architectural beams 16 are part of the framework of the building, i.e., the architectural framework. The multiple architectural beams 16 are exposed inside the hoistway 1. The multiple architectural beams 16 are arranged at a position higher than the machine base 5.

[0055] Each architectural beam 16 has a vertical plate portion 161, a pair of lower horizontal plate portions 162, and a pair of upper horizontal plate portions 163. When the architectural beam 16 is viewed along the longitudinal direction of the architectural beam 16, the vertical plate portion 161 is arranged along the vertical direction. The pair of lower horizontal plate portions 162 protrude horizontally in opposite directions from the lower end portion of the vertical plate portion 161. The pair of upper horizontal plate portions 163 protrude horizontally in opposite directions from the upper end portion of the vertical plate portion 161. H-shaped steel is used as the architectural beam 16. Therefore, the cross-sectional shape of the architectural beam 16 is H-shaped by the vertical plate portion 161, the pair of lower horizontal plate portions 162, and the pair of upper horizontal plate portions 163.

[0056] The counterweight side rope attachment device 8 has a support portion 81 and a rope stopper portion 82.

[0057] The rope stopper 82 has a hanging member 821 and a plurality of rope end mounting fixtures 822 .

[0058] The hanging member 821 is disposed horizontally at a position lower than the machine base 5. The hanging member 821 is provided with a plurality of rope end through holes (not shown) and two rod through holes (not shown). In this embodiment, the two rod through holes are positioned at positions separated from each other in the horizontal direction, and the plurality of rope end through holes are positioned between the two rod through holes.

[0059] The terminal rod 421 of the second rope end 42 is passed through each rope end through hole in the vertical direction. Each rope end attachment tool 822 attaches the corresponding second rope end 42 to the hanging member 821. The configuration of the rope end attachment tool 822 is the same as that of the first embodiment. This makes it possible to adjust the position of the second rope end 42 relative to the hanging member 821 in the vertical direction by the rope end attachment tool 822.

[0060] The support portion 81 has a pair of connecting members 811, a pair of first support fixtures 812, and a pair of second support fixtures 813. The pair of connecting members 811 are attached to two different architectural beams 16 among the multiple architectural beams 16.

[0061] The pair of first support fixtures 812 correspond to the pair of connecting members 811. Each first support fixture 812 attaches the corresponding connecting member 811 to the architectural beam 16. The pair of second support fixtures 813 correspond to the pair of connecting members 811. Each second support fixture 813 attaches the corresponding connecting member 811 to the hanging member 821.

[0062] Each of the connecting members 811 has a rod portion 811a and a connecting portion 811b. The rod portion 811a and the connecting portion 811b are arranged along the vertical direction. A threaded portion is formed on the outer circumferential surface of the rod portion 811a. The connecting portion 811b is fixed to the upper end portion of the rod portion 811a.

[0063] The first support fixture 812 attaches the upper end of the connection portion 811b of the corresponding connecting member 811 to the architectural beam 16. In this embodiment, a holder that is hung on and held by a pair of lower horizontal plate portions 162 of the architectural beam 16 is used as the first support fixture 812. In this embodiment, the first support fixture 812 is held by the pair of lower horizontal plate portions 162, thereby attaching the connection portion 811b of the connecting member 811 to the architectural beam 16.

[0064] A pair of connecting members 811 are hung downward from two different architectural beams 16. As a result, the lower end of the rod portion 811a of each connecting member 811 is located at a position lower than the machine base 5. Each rod portion 811a is individually passed through two rod through holes in the hanging member 821.

[0065] The hanging member 821 is a rod attachment target portion to which the rod portion 811a is attached. Each second support fixture 813 attaches the rod portion 811a of the corresponding connecting member 811 to the hanging member 821. As a result, the hanging member 821 is located at a position spaced downward from each architectural beam 16. In this embodiment, the hanging member 821 is located at a position lower than the machine base 5.

[0066] The second support fixture 813 has a plurality of nuts. The plurality of nuts of the second support fixture 813 are screwed onto the rod portion 811a in a stacked manner. The second support fixture 813 receives the hanging member 821 from below. This prevents the rod portion 811a from coming off the hanging member 821 upward.

[0067] The position of the second support fixture 813 relative to the rod portion 811a can be adjusted along the rod portion 811a by turning a plurality of nuts on the second support fixture 813. The position of the rod portion 811a relative to the hanging member 821 can be adjusted along the rod portion 811a by adjusting the position of the second support fixture 813 relative to the rod portion 811a. In this way, the second support fixture 813 serves as a support position adjustment tool that adjusts the position of the rod portion 811a relative to the hanging member 821. Therefore, the position of the rope stopper 82 relative to the architectural beam 16 can be adjusted along the rod portion 811a by the second support fixture 813. The other configurations are the same as those in the first embodiment.

[0068] The counterweight side run-by dimension is adjusted by adjusting the position of each second rope end 42 relative to the architectural beam 16 in the counterweight side rope attachment device 8. When adjusting the position of each second rope end 42 relative to the architectural beam 16, first, the position of each second support mounting fixture 813 relative to each rod portion 811a is adjusted along the rod portion 811a. The position of the second support mounting fixture 813 relative to the rod portion 811a is adjusted by turning multiple nuts on the second support mounting fixture 813. This adjusts the position of the rope stopper part 82 relative to the architectural beam 16, and the positions of each second rope end 42 relative to the architectural beam 16 are adjusted collectively.

[0069] Thereafter, if necessary, the position of at least one of the multiple second rope ends 42 is adjusted in the vertical direction relative to the hanging member 821. The procedure for adjusting the position of the second rope end 42 relative to the hanging member 821 is the same as in embodiment 1. In this way, the counterweight side run-by dimension is adjusted to fall within the specified range.

[0070] In such an elevator counterweight side rope attachment device 8, the support part 81 is attached to the architectural beam 16. Therefore, the load applied to the counterweight side rope attachment device 8 can be supported by the architectural beam 16. This makes it possible to reduce the load applied to the machine base 5 and the support structure 15, and to prevent the machine base 5 and the support structure 15 from becoming larger. Therefore, it is possible to reduce the overall cost of the elevator.

[0071] In the second embodiment, the machine base 5 is supported by the support structure 15. However, the machine base 5 may be supported by each car guide rail 11 and each counterweight guide rail 12. In this way, the support structure 15 can be eliminated, and the design freedom of the space in the hoistway 1 can be improved. In addition, since the load applied to the machine base 5 is reduced, even if the machine base 5 is supported by each car guide rail 11 and each counterweight guide rail 12, the degree to which each car guide rail 11 and each counterweight guide rail 12 is increased in size can be reduced.

[0072] In addition, in the second embodiment, the connection portion 811b of the connecting member 811 is attached to the architectural beam 16. However, the connection portion 811b of the connecting member 811 may be eliminated, and the rod portion 811a of the connecting member 811 may be attached to the architectural beam 16. That is, the rod attachment target portion to which the rod portion 811a is attached may be the architectural beam 16. In this case, a rod through hole through which the rod portion 811a passes is provided in the lower horizontal plate portion 162 of the architectural beam 16. Also, in this case, the rod portion 811a is attached to the lower horizontal plate portion 162 of the architectural beam 16 by the first support mounting fixture 812. Furthermore, in this case, the first support mounting fixture 812 has a plurality of nuts screwed into the rod portion 811a. Also, in this case, the position of the rod portion 811a relative to the architectural beam 16 is adjusted by turning the multiple nuts in the first support mounting fixture 812. Thereby, the first support mounting tool 812 is a support position adjustment tool that adjusts the position of the rod portion 811a relative to the architectural beam 16. In this way, the position of the second rope end 42 relative to the architectural beam 16 can be adjusted not only by adjusting the position of the rod portion 811a relative to the hanging member 821, but also by adjusting the position of the rod portion 811a relative to the architectural beam 16.

[0073] The configurations shown in the above embodiments are examples of the contents of the present disclosure. The embodiments can be combined with other known technologies. A part of the configuration of the embodiments can be omitted or modified without departing from the gist of the present disclosure. [Explanation of symbols]

[0074] 1 elevator shaft, 2 car (lifting body), 3 counterweight (lifting body), 5 machine base (fixed part), 8 counterweight side rope attachment device (rope attachment device), 15 support structure, 16 architectural beam (fixed part), 42 second rope end (rope end), 81 support part, 82 rope stopper part, 811 connecting member, 811a rod part, 812 first support attachment device, 813 second support attachment device, 821 hanging member, 822 rope end attachment device.

Claims

1. A support part attached to a fixed part horizontally disposed at an upper part of the hoistway; a rope stopper attached to the support part at a position spaced downward from the fixed part; Equipped with The rope stopper has a hanging member and a rope end attachment that attaches a rope end, which is an end of a rope that suspends a lifting body, to the hanging member in a state where the rope end is separated downward from the fixed part, the support portion includes a connecting member, a first support fixture that attaches the connecting member to the fixed portion, and a second support fixture that attaches the connecting member to the hanging member, The connecting member has a rod portion disposed along a vertical direction, At least one of the fixed portion and the hanging member serves as a rod attachment target portion to which the rod portion is attached, Of the first support fixture and the second support fixture, the support fixture that attaches the rod portion to the rod attachment target portion is a support position adjustment fixture, The position of the rope end relative to the hanging member can be adjusted in the vertical direction by the rope end mounting tool, a position of the support portion relative to the rod attachment target portion can be adjusted along the rod portion by the support position adjustment tool; The fixing portion is fixed on both sides of a portion where the support portion is attached in a horizontal direction, The fixed portion is a building beam, The connecting member is disposed along the up-down direction, The first support fixture attaches an upper end of the connecting member to the architectural beam, The connecting member is an elevator rope attachment device that hangs downward from the architectural beam.

2. A support part attached to a fixed part arranged horizontally at the top of the elevator shaft; a rope stopper attached to the support part at a position spaced downward from the fixed part; Equipped with The rope stopper has a hanging member and a rope end attachment that attaches a rope end, which is an end of a rope that suspends a lifting body, to the hanging member in a state where the rope end is separated downward from the fixed part, the support portion includes a connecting member, a first support fixture that attaches the connecting member to the fixed portion, and a second support fixture that attaches the connecting member to the hanging member, The connecting member has a rod portion disposed along a vertical direction, At least one of the fixed portion and the hanging member serves as a rod attachment target portion to which the rod portion is attached, Of the first support fixture and the second support fixture, the support fixture that attaches the rod portion to the rod attachment target portion is a support position adjustment fixture, The position of the rope end relative to the hanging member can be adjusted in the vertical direction by the rope end mounting tool, a position of the support portion relative to the rod attachment target portion can be adjusted along the rod portion by the support position adjustment tool; The fixing portion is fixed on both sides of a portion where the support portion is attached in a horizontal direction, the fixed portion is a protruding plate portion that protrudes horizontally from a main body of the machine base at an upper portion of the machine base that receives a load of a drive device that generates a drive force for moving the lifting body, The machine bed is fixed within the hoistway and supported by a support structure that extends from the bottom of the hoistway to the top of the hoistway and that secures the car guide rails and the counterweight guide rails.

Images