JPWO2017141438A1 - Elevator equipment - Google Patents

Abstract

In the elevator apparatus, the car and the counterweight are suspended by the main rope so as to be movable in the vertical direction in the hoistway. Is the weight-side main rope end device having the weight-side main rope stop portion to which the first end portion of the main rope is connected and the second end portion of the main rope connected to the upper part in the hoistway? A car-side main rope end device having a main-side rope holding portion is provided. The drive device is provided immediately above the moving range of the counterweight, and is disposed outside the area of the car when the hoistway is viewed from above. The uppermost position of the weight side main rope end device is higher than the uppermost position of the drive device.

Description

  The present invention relates to an elevator apparatus in which a driving device that generates a driving force for moving a car and a counterweight is disposed in a hoistway.

  Conventionally, the unit frame is fixed to the upper ends of a pair of counterweight guide rails that guide the movement of the counterweight, and the end of the main rope that suspends the cage and the counterweight, and the cage and the counterweight are moved. A machine room-less elevator in which a hoisting machine is attached to a unit frame is known. The hoisting machine is disposed above the lower beam of the unit frame, and the end of the main rope is connected to the lower beam of the unit frame. In such a conventional machine room-less elevator, in order to install the hoisting machine on the upper part of the hoistway, after lifting the hoisting machine while hanging the upper part of the unit frame attached with the hoisting machine with a chain block, The hoisting machine is further raised by changing the chain block to a lifting jig that receives the hoisting machine from below (see, for example, Patent Document 1).

Japanese Patent No. 4828084

  However, in the conventional machine room-less elevator shown in Patent Document 1, since the end of the main rope is connected to the lower beam of the unit frame to which the hoisting machine is attached, the vertical direction of the counterweight is In order to ensure the range of movement, it is necessary to bring the hoisting machine as close as possible to the ceiling of the hoistway.

  For example, according to EN81-20 of the European safety standard, when performing maintenance work on hoistway equipment on a car, it is specified that the distance from the work surface on the car to the ceiling of the hoistway is 2100 mm or more. In the conventional machine room-less elevator shown in Patent Document 1, the hoisting machine is installed as close as possible to the ceiling of the hoistway. Therefore, in compliance with EN81-20, from the work surface on the car The position of the hoisting machine becomes high, and the maintenance work for the hoisting machine becomes difficult.

  In addition, in a conventional machine room-less elevator, a lifting jig for receiving the hoisting machine from below is suspended by a chain block when installing the hoisting machine in order to bring the hoisting machine as close as possible to the ceiling of the hoistway. Since it is necessary to lift the hoisting machine, not only a lifting jig is required, but the position of the suspending point with respect to the hoisting machine becomes the lower part of the hoisting machine, so that the hoisting machine can be wound in an unstable state. The upper machine will be lifted.

  The present invention has been made in order to solve the above-described problems, and an elevator capable of facilitating maintenance work for the drive device and installation work for the drive device while ensuring the range of movement of the counterweight. The object is to obtain a device.

  An elevator apparatus according to the present invention includes a car and a counterweight that are movable in a vertical direction in a hoistway, a pair of counterweight guide rails and a driving sheave provided in the hoistway to guide the movement of the counterweight. A driving device for generating a driving force for moving the car and the counterweight, a weight-side main rope stopper, a weight-side main rope end device provided at the upper part in the hoistway, and a car-side main rope A car-side main rope end device provided with an upper part in the hoistway, a first end part connected to the weight-side main rope-holding part, and a car-side main rope-holding part And a main rope that suspends the car and the counterweight in a state of being wound around the driving sheave, and the driving device has a range of movement of the counterweight. And is located outside the car area when the hoistway is viewed from above. Ri, uppermost position of the weight-side main ropes tip device is higher than the uppermost position of the driving device.

  According to the elevator apparatus according to the present invention, it is possible to avoid the weight side main rope end apparatus from interfering with the counterweight below the drive apparatus, and the position of the drive apparatus can be maintained while maintaining the movement range of the counterweight. Can be lowered. As a result, the position of the drive device can be brought closer to the work surface on the car that is a certain distance or more downward from the ceiling surface of the hoistway, and the maintenance work for the drive device can be facilitated. In addition, since the position of the drive device can be lowered to increase the distance from the ceiling surface of the hoistway to the position of the drive device, it is necessary to make the drive device as close as possible to the ceiling surface of the hoistway when installing the drive device. Thus, it is possible to stably carry the drive device to the installation position while suspending the upper portion of the drive device with a lifting machine. Thereby, the installation work of a drive device can also be made easy.

1 is a top view showing an elevator apparatus according to Embodiment 1 of the present invention. It is an upper side view which shows the elevator apparatus of FIG. It is a front view which shows the winding machine and unit frame of FIG. It is a side view which shows the winding machine and unit frame of FIG. It is a side view which shows the winding machine of FIG. 2, a weight side main rope end apparatus, and a unit frame. It is an upper side view which shows the elevator apparatus by Embodiment 2 of this invention. It is a top view which shows the elevator apparatus by Embodiment 3 of this invention. It is a top side view which shows the elevator apparatus of FIG. It is a top side view which shows the elevator apparatus by Embodiment 4 of this invention. It is a top view which shows the elevator apparatus by Embodiment 5 of this invention. It is a top side view which shows the elevator apparatus of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a top view showing an elevator apparatus according to Embodiment 1 of the present invention. FIG. 2 is an upper side view showing the elevator apparatus of FIG. In the figure, a car 2 and a counterweight 3 are provided in a hoistway 1 so as to be movable in the vertical direction. The hoistway 1 is formed with a pair of hoistway wall surfaces 1 a and 1 b that face each other in the width direction of the hoistway 1. The car 2 has a car body having a bottom surface, an upper surface, a front surface, a back surface, and a pair of side surfaces. The car 2 is arranged in the hoistway 1 with one side surface of the car body facing one hoistway wall surface 1a and the other side surface of the car body facing the other hoistway wall surface 1b. A car entrance is provided in front of the car 2. The car 2 is arranged with the car doorway facing the landing 6 on each floor when the hoistway 1 is viewed from above.

  The counterweight 3 is arranged outside the area of the car 2 when the hoistway 1 is viewed from above. In this example, when the hoistway 1 is viewed from above, the counterweight 3 is disposed between one hoistway wall surface 1 a and one side surface of the car 2. Therefore, the elevator apparatus of this example is an elevator apparatus of a counterweight falling type.

  A pair of car guide rails 4 and a pair of counterweight guide rails 5 are installed in the hoistway 1 in the vertical direction. The car 2 is disposed between the pair of car guide rails 4, and the counterweight 3 is disposed between the pair of counterweight guide rails 5.

  Each car guide rail 4 has a flange portion 4a disposed along the longitudinal direction of the car guide rail 4, and a guide portion 4b that protrudes horizontally from the flange portion 4a and is disposed along the flange portion 4a. ing. The cross-sectional shape of the car guide rail 4 in a plane orthogonal to the longitudinal direction of the car guide rail 4 is T-shaped by the flange portion 4a and the guide portion 4b.

  The pair of car guide rails 4 are arranged in a state where the guide portions 4 b face each other in the width direction of the hoistway 1. The car 2 moves in the vertical direction in the hoistway 1 while being guided by the respective guide portions 4 b of the car guide rails 4.

  Each counterweight guide rail 5 includes a flange portion 5a disposed along the longitudinal direction of the counterweight guide rail 5, and a guide portion 5b protruding from the flange portion 5a and disposed along the flange portion 5a. Have. The cross-sectional shape of the counterweight guide rail 5 in a plane orthogonal to the longitudinal direction of the counterweight guide rail 5 is T-shaped by the flange portion 5a and the guide portion 5b.

  The pair of counterweight guide rails 5 are arranged in a state where the guide portions 5b face each other in the depth direction of the hoistway 1, that is, the direction perpendicular to both the width direction and the vertical direction of the hoistway 1. . Thus, when the hoistway 1 is viewed from above, the straight line A connecting the guide portions 4b of the pair of car guide rails 4 and the straight line connecting the guide portions 5b of the pair of counterweight guide rails 5 B is orthogonal. Further, the pair of counterweight guide rails 5 are arranged on the back side when viewed from the landing 6 with respect to the straight line A connecting the guide portions 4b of the pair of car guide rails 4 when the hoistway 1 is viewed from above. And between one hoistway wall surface 1 a and the car 2. The counterweight 3 moves in the vertical direction in the hoistway 1 while being guided by the respective guide portions 5 b of the counterweight guide rails 5.

  A hoisting machine 7, which is a driving device that generates a driving force for moving the car 2 and the counterweight 3, is provided in the upper part of the hoistway 1. The hoisting machine 7 is provided immediately above the range of movement of the counterweight 3 in the vertical direction. Therefore, when the hoistway 1 is viewed from above, at least a part of the hoisting machine 7 exists in the area of the counterweight 3. The hoisting machine 7 is arranged outside the area of the car 2 when the hoistway 1 is viewed from above. In this example, a thin hoisting machine having a radial dimension larger than the axial dimension is used as the hoisting machine 7.

  The hoisting machine 7 includes a driving device main body 71 including a motor, and a driving sheave 72 that is rotatably provided on the driving device main body 71 and rotates by the driving force of the driving device main body 71. The hoisting machine 7 is arranged in a state where the rotation shaft of the drive sheave 72 is horizontal. In this example, when the hoistway 1 is viewed from above, as shown in FIG. 1, the hoisting machine 7 with the drive sheave 72 facing the car 2 and the drive device main body 71 facing the hoistway wall surface 1a. Is arranged. In this example, when the hoistway 1 is viewed from above, the axis of the rotation shaft of the drive sheave 72 is orthogonal to the straight line B connecting the guide portions 5b of the pair of counterweight guide rails 5. .

  A pair of car suspension wheels 8 are provided at the lower part of the car 2. One car suspension wheel 8 is disposed below one side surface of the car body, and the other car suspension wheel 8 is disposed below the other side surface of the car body. On the upper part of the counterweight 3, a counterweight suspension vehicle 9 is provided. In this example, when the hoistway 1 is viewed from above, the axis of the counterweight suspension vehicle 9 is inclined with respect to a straight line B connecting the guide portions 5b of the pair of counterweight guide rails 5.

  A weight side main rope end device 10 and a car side main rope end device 11 are provided at the upper part in the hoistway 1. The weight-side main rope end device 10 is disposed between the hoisting machine 7 and the hoistway wall surface 1a as shown in FIG. 1 when the hoistway 1 is viewed from above. In this example, the weight-side main rope end device 10 is provided directly above the moving range of the counterweight 3 in the vertical direction. Therefore, in this example, when the hoistway 1 is viewed from above, at least a part of the weight-side main rope end device 10 is disposed in the area of the counterweight 3.

  The uppermost position of the weight side main rope end device 10 is higher than the uppermost position of the hoisting machine 7, as shown in FIG. The lowermost position of the weight side main rope end device 10 is higher than the lowermost position of the hoisting machine 7. This prevents the counterweight 3 from interfering with the weight side main rope end device 10 below the hoisting machine 7. Further, when the hoisting machine 7 is viewed along a direction orthogonal to the plane including the respective guide portions 5b of the pair of counterweight guide rails 5, as shown in FIG. A part is disposed in the area of the hoisting machine 7.

  The weight side main rope end device 10 has a plurality of weight side main rope stoppers 12. In this example, as shown in FIG. 2, the uppermost position of all the weight side main clasps 12 is higher than the uppermost position of the hoisting machine 7.

  When the hoistway 1 is viewed from above, the car-side main rope end device 11 is disposed between the side surface of the car 2 and the hoistway wall surface 1b as shown in FIG. The car-side main rope end device 11 is supported by one car guide rail 4 through a beam (not shown). The car-side main rope end device 11 has a plurality of car-side main rope stopping portions 13.

  The car 2 and the counterweight 3 are suspended in the hoistway 1 by a plurality of main ropes 14. Each main rope 14 has a first end portion 14a and a second end portion 14b. The first end portions 14a of the main ropes 14 are individually connected to the plurality of weight side main clasp portions 12, and the second end portions of the main ropes 14 are respectively connected to the plurality of car side main clasp portions 13. End portions 14b are individually connected. Each main rope 14 is wound from the first end portion 14a in the order of the counterweight suspension wheel 9, the driving sheave 72, and the pair of car suspension vehicles 8, and reaches the second end portion 14b. Accordingly, each main rope 14 suspends the car 2 and the counterweight 3 while being wound around the counterweight suspension wheel 9, the driving sheave 72, and the pair of car suspension wheels 8.

  As shown in FIG. 2, a unit frame 24 is fixed to the pair of counterweight guide rails 5. The lower part of the unit frame 24 is individually fixed to each counterweight guide rail 5 by a pair of lower fixing bases 25, and the upper part of the unit frame 24 is individually connected to each counterweight guide rail 5 by a pair of upper fixing bases 26. It is fixed to. In this example, each lower fixing base 25 is a support that receives a downward load applied to the unit frame 24, and each upper fixing base 26 is a steady rest that receives a moment due to the eccentricity of the unit frame 24.

  The hoisting machine 7 and the weight side main rope end device 10 are attached to the unit frame 24. The unit frame 24 connects the lower beam 21 that supports the hoisting machine 7, the upper beam 22 that supports the weight side main rope end device 10, and the lower beam 21 and the upper beam 22. And a pair of vertical columns 23. That is, the unit frame 24 has a plurality of beams 21 and 22 that individually support the hoisting machine 7 and the weight side main rope end device 10 and a pair of vertical columns 23 that connect the plurality of beams 21 and 22. doing. The hoisting machine 7 supported by the lower beam 21 is disposed above the lower beam 21. In this example, the lower beam 21 is attached to each lower fixing base 25, and the upper beam 22 is attached to each upper fixing base 26.

  Each of the weight side main rope stoppers 12 includes a shackle rod 31 to which the first end 14a of the main rope 14 is connected, a receiving plate 32 that is an elastic body receiver provided on the shackle rod 31, and A spring 33 that is an elastic body that receives the load applied to the main rope 14 from the plate 32 and an adjustment tool that is screwed into the shackle rod 31 and adjusts the position of the receiving plate 32 with respect to the shackle rod 31 in the longitudinal direction of the shackle rod 31. And a certain nut 34. The spring 33 is contracted between the upper surface of the upper beam 22 and the receiving plate 32 while being elastically deformed by receiving a load from the receiving plate 32. In this example, the positions of the receiving plate 32, the spring 33, and the nut 34 of each weight side main clasp 12 are higher than the uppermost position of the hoisting machine 7. Between the ceiling surface 1 c in the hoistway 1 and the upper beam 22, a space in which the upper portion of the shackle rod 31, the receiving plate 32, the spring 33, and the nut 34 are arranged is secured. The tension of the main rope 14 can be adjusted by operating the nut 34 to adjust the position of the receiving plate 32 with respect to the shackle rod 31.

  The configuration of each car-side main clasp 13 is the same as that of the weight-side main clasp 12. A second end portion 14 b of the main rope 14 is connected to each shackle rod of each car-side main rope holding portion 13.

  FIG. 3 is a front view showing the hoisting machine 7 and the unit frame 24 of FIG. FIG. 4 is a side view showing the hoisting machine 7 and the unit frame 24 of FIG. The position of the upper beam 22 is higher than the position of the lower beam 21, as shown in FIG. In this example, the position of the upper surface of the upper beam 22 is higher than the position of the uppermost part of the hoisting machine 7.

  As shown in FIG. 4, the lower beam 21 is disposed on a plane B including the respective guide portions 5 b of the pair of counterweight guide rails 5. The upper beam 22 and the pair of vertical columns 23 are arranged away from the plane B including the respective guide portions 5 b of the pair of counterweight guide rails 5. That is, when the hoistway 1 is viewed from above, the lower beam 21 is arranged on a straight line B connecting the respective guide portions 5b of the pair of counterweight guide rails 5, and each of the pair of counterweight guide rails 5 is provided. The upper beam 22 is disposed outside the straight line B connecting the guide portions 5b. Further, when the hoistway 1 is viewed from above, a part of the lower beam 21 is disposed in the area of the hoisting machine 7, and the upper beam 22 and the pair of vertical columns 23 are all outside the area of the hoisting machine 7. Has been placed.

  FIG. 5 is a side view showing the hoisting machine 7, the weight side main rope end device 10 and the unit frame 24 of FIG. The weight-side main rope end device 10 and the driving sheave 72 are arranged on different sides as viewed from the plane B including the respective guide portions 5b of the pair of counterweight guide rails 5. That is, when the hoistway 1 is viewed from above, as shown in FIG. 2, a straight line B connecting the guide portions 5b of the pair of counterweight guide rails 5 is formed between the driving sheave 72 and the weight side main rope end device. It passes between 10. As a result, a moment acting on the pair of counterweight guide rails 5 due to the load applied to the weight side main rope end device 10 and a moment acting on the pair of counterweight guide rails 5 due to the load applied to the driving sheave 72 are obtained. , At least partially offset.

  A part of the lower beam 21 protrudes to the weight side main rope end device 10 side from the back surface of the hoisting machine 7 in the horizontal direction. That is, when the hoistway 1 is viewed from above, a part of the lower beam 21 protrudes from the area of the hoisting machine 7 toward the weight side main rope end device 10.

  Next, a method of installing the hoisting machine 7 and the weight side main rope end device 10 on the upper part of the hoistway 1 will be described. First, the hoisting machine 7 is attached to the lower beam 21 of the unit frame 24 to produce a hoisting machine unit in which the hoisting machine 7 and the unit frame 24 are integrated.

  After this, the hook of the chain block which is a lifting machine attached to the ceiling surface 1c of the hoistway 1 is hung on the upper part of the hoisting machine unit, then the chain block is operated and the hoisting machine unit is suspended by the chain block. Raise the hoist unit.

  Thereafter, when the hoisting machine unit reaches the installation position, the unit frame 24 of the hoisting machine unit is fixed to the pair of counterweight guide rails 5 by the lower fixing base 25 and the lower fixing base 26. Thereafter, the weight side main rope end device 10 is attached to the upper beam 22 of the unit frame 24.

  Next, an operation method for performing maintenance on the hoisting machine 7 will be described. First, a maintenance person gets on the car 2 from the hall 6 on the top floor. Thereafter, the maintenance staff on the car 2 operates the maintenance operation unit provided on the car 2 to move the car 2 upward at a low speed to a work position located above the top floor. The work position at which the car 2 is stopped is a position where the distance from the work surface on the car 2 to the ceiling surface 1c in the hoistway 1 is equal to or greater than the reference distance 2100 mm in EN81-20.

  Thereafter, the maintenance staff on the car 2 performs maintenance on the hoisting machine 7. At this time, the maintenance staff can also perform maintenance on the weight side main rope end device 10, for example, adjustment of the nut 34. Thereafter, the maintenance staff on the car 2 operates the maintenance operation unit to move the car 2 downward at a low speed, and then moves from the top of the car 2 to the landing 6 on the top floor.

  In such an elevator apparatus, the hoisting machine 7 is provided directly above the moving range of the counterweight 3, and the position of the uppermost part of the weight side main rope end device 10 is higher than the position of the uppermost part of the hoisting machine 7. Since it is at a high position, it is possible to avoid the weight side main rope end device 10 from interfering with the counterweight 3 below the hoisting machine 7. Accordingly, the position of the hoisting machine 7 can be lowered while the moving range of the counterweight 3 is maintained, and the position of the hoisting machine 7 can be brought close to the upper limit position of the moving range of the counterweight 3. As a result, maintenance personnel can easily access the hoisting machine 7 from the top of the car 2 in a state where the distance between the ceiling surface 1c in the hoistway 1 and the work surface on the car 2 is secured to a reference distance or more. Thus, the maintenance work for the hoisting machine 7 can be facilitated. Moreover, since the position from the ceiling surface 1c of the hoistway 1 to the installation position of the hoisting machine 7 can be increased by lowering the position of the hoisting machine 7, the ceiling surface of the hoistway 1 is installed when the hoisting machine 7 is installed. It is no longer necessary to bring the hoisting machine 7 as close as possible to 1c, and the hoisting machine 7 is installed at the installation position while lifting the upper part of the hoisting machine 7 with a lifting machine without using the lifting jig for receiving the hoisting machine from below Can carry up to. Thereby, the installation work of the hoisting machine 7 can also be made easy. Further, since the position of the uppermost portion of the weight side main rope end device 10 is higher than the position of the uppermost portion of the hoisting machine 7, the uppermost portion of the weight side main rope end device 10 is also hoisted from above the car 2. It is possible to access by avoiding the machine 7, and maintenance work for the weight side main rope end device 10 can be easily performed from the car 2.

  Further, a unit frame 24 having a lower beam 21 that supports the hoisting machine 7 and an upper beam 22 that supports the weight-side main rope end device 10 is fixed to the pair of counterweight guide rails 5. The carrying work and the installation work can be performed with the hoisting machine 7 attached to the unit frame 24. Thereby, the installation work of the hoisting machine 7 and the weight side main rope end apparatus 10 can be made still easier.

  Further, when the hoistway 1 is viewed from above, a straight line B connecting the pair of counterweight guide rails 5 passes between the driving sheave 72 and the weight side main rope end device 10, so that the weight side At least a part of the moment acting on the pair of counterweight guide rails 5 due to the load applied to the main rope end device 10 and the moment acting on the pair of counterweight guide rails 5 due to the load applied to the driving sheave 72 are offset. The load burden of the pair of counterweight guide rails 5 can be reduced.

  Further, when the hoistway 1 is viewed from above, a part of the lower beam 21 that supports the hoisting machine 7 protrudes from the area of the hoisting machine 7 toward the weight side main rope end device 10. Even when the main rope 14 sways with respect to the hoisting machine 7 due to an earthquake or a strong wind, the main rope 14 and the weight side main rope end device 10 are hoisted while suppressing the swing of the main rope 14 with the lower beam 21. It is possible not to collide with the machine 7. Thereby, even when the main rope 14 shakes, damage to the hoisting machine 7 can be prevented, and failure of the elevator apparatus can be prevented.

  The weight side main rope stopper 12 includes a shackle rod 31 connected to the first end portion 14 a of the main rope 14, a receiving plate 32 provided on the shackle rod 31, and a load applied to the main rope 14. Since the spring 33 received from the receiving plate 32 and the nut 34 provided on the shackle rod 31 and adjusting the position of the receiving plate 32 with respect to the shackle rod 31, the main rope 14 can be supported with a simple configuration. The tension of the main rope 14 can be adjusted by a simple operation on the nut 34.

  Further, when the hoisting machine 7 is viewed along the direction orthogonal to the plane including the pair of counterweight guide rails 5, a part of the weight side main rope end device 10 is located in the area of the hoisting machine 7. Therefore, at least a part of the weight side main rope end device 10 is within the range of the hoisting machine 7 in the direction in which the pair of counterweight guide rails 5 face each other (in this example, the depth direction of the hoistway 1). The space in the hoistway 1 can be used effectively.

  When the hoistway 1 is viewed from above, the hoisting machine 7 is arranged with the drive sheave 72 facing the car 2 and the straight line B connecting the pair of counterweight guide rails 5 Since the axes are orthogonal, when the hoistway 1 is viewed from above, the distance between the car 2 and the hoistway wall surface 1a with the hoisting machine 7 disposed between the car 2 and the hoistway wall surface 1a. The horizontal cross-sectional area of the hoistway 1 can be reduced.

  In the above example, when the hoistway 1 is viewed from above, the hoisting machine 7 is arranged with the driving sheave 72 facing the car 2, but the hoistway wall 1 a on the opposite side of the car 2 is disposed on the hoistway wall 1 a. The hoisting machine 7 may be arranged with the driving sheave 72 facing.

  In the above example, when the hoistway 1 is viewed from above, the axis of the drive sheave 72 is orthogonal to the straight line B connecting the pair of counterweight guide rails 5. However, the present invention is not limited to this. Instead, when the hoistway 1 is viewed from above, the axis of the drive sheave 72 may be inclined with respect to the straight line B connecting the pair of counterweight guide rails 5.

Embodiment 2. FIG.
FIG. 6 is an upper side view showing an elevator apparatus according to Embodiment 2 of the present invention. The hoisting machine 7 is supported by the lower beam 21, and the weight side main rope end device 10 is supported by the upper beam 22. The lower beam 21 and the upper beam 22 are separate beams separated from each other. That is, the hoisting machine 7 and the weight side main rope end device 10 are individually supported by a plurality of beams 21 and 22 separated from each other.

  The lower beam 21 and the upper beam 22, that is, the plurality of beams 21 and 22 are individually fixed to the pair of counterweight guide rails 5. The lower beam 21 is fixed to the pair of counterweight guide rails 5 by a pair of lower fixing bases 25, and the upper beam 22 is fixed to the pair of counterweight guide rails 5 by a pair of upper fixing bases 26. Each lower fixing base 25 is a support that receives a downward load applied to the lower beam 21. Each upper fixing base 26 is a support that receives a downward load applied to the upper beam 22. Other configurations are the same as those in the first embodiment.

  In such an elevator apparatus, the lower beam 21 that supports the hoisting machine 7 and the upper beam 22 that supports the weight side main rope end apparatus 10 are individually fixed to the pair of counterweight guide rails 5. Therefore, the upper beam 22 can be installed regardless of the position of the lower beam 21. For example, when viewed from the landing 6, the hoisting machine 7 and the weight side main rope end device 10 are arranged on the left side of the car 2 as in the present embodiment and on the right side of the car 2. Although the positional relationship of the weight side main rope end device 10 with respect to the upper machine 7 is different, the upper beam 22 can be installed regardless of the position of the lower beam 21, so that the hoisting machine 7 and the weight side main rope are arranged. Regardless of whether the end device 10 is arranged on the left side of the car 2 or the right side of the car 2, the same components can be used for each of the lower beam 21 and the upper beam 22.

Embodiment 3 FIG.
FIG. 7 is a top view showing an elevator apparatus according to Embodiment 3 of the present invention. FIG. 8 is an upper side view showing the elevator apparatus of FIG. The weight side main rope end device 10 includes a plurality of weight side main rope holding portions 121 and 122 to which the first end portions 14a of the plurality of main ropes 14 are individually connected. Among the plurality of weight-side main clasp portions 121, 122, a part of the weight-side main clasp portion is the first weight-side main clasp portion 121, and the remaining weight-side main clasp portion is the second weight. The side main clasp 122 is used. Each configuration of the first weight side main clasp portion 121 and the second weight side main clasp portion 122 is the same as the configuration of the weight side main clasp portion 12 in the first embodiment.

  The uppermost position of the first weight side main clasp 121 is higher than the uppermost position of the hoisting machine 7, as shown in FIG. In this example, the positions of the receiving plate 32, the spring 33, and the nut 34 of the first weight side main clasp portion 121 are higher than the uppermost position of the hoisting machine 7. The uppermost position of the second weight side main clasp 122 is lower than the uppermost position of the hoisting machine 7.

  The hoisting machine 7 has a counterweight guide rail 5 (the counterweight guide rail 5 on the right side in FIG. 8) which is one of the counterweight guide rails 5 on the right side of the counterweight guide rail 5 (the right counterweight guide rail 5 in FIG. 8). In FIG. 8, it is arranged at a position close to the left counterweight guide rail 5). Thereby, the maintenance space 30 exists between one counterweight guide rail 5 and the hoisting machine 7.

  The second weight side main clasp portion 122 is disposed at a position closer to the maintenance space 30 than the first weight side main clasp portion 121. The maintenance space 30 is a space in which tools necessary for the operation and adjustment of the second weight side main clasp portion 122 can be inserted. As a result, maintenance personnel on the car 2 when stopped at the work position can access the second weight side main clasp 122 from the maintenance space 30, and the second weight side main clasp Maintenance work for 122 can be performed through the maintenance space 30.

  The first weight side main clasp part 121 is supported by the first upper beam 221, and the second weight side main clasp part 122 is supported by the second upper beam 222. The hoisting machine 7 is supported by the lower beam 21 as in the second embodiment. The position of the first upper beam 221 is higher than the position of the second upper beam 222. The lower beam 21, the first upper beam 221 and the second upper beam 222 are separate beams separated from each other. That is, the hoisting machine 7, the first weight side main clasp portion 121 and the second weight side main clasp portion 122 are individually supported by a plurality of beams 21, 221, 222 separated from each other.

  The lower beam 21, the first upper beam 221, and the second upper beam 222, that is, the plurality of beams 21, 221, and 222 are individually fixed to the pair of counterweight guide rails 5. Similarly to the second embodiment, the lower beam 21 is fixed to the pair of counterweight guide rails 5 by a pair of lower fixing bases 25. The first upper beam 221 is fixed to the pair of counterweight guide rails 5 by a pair of first upper fixing bases 261, and the second upper beam 222 is fixed to a pair of counterweights by a pair of second upper fixing bases 262. It is fixed to the weight guide rail 5. Each lower fixing base 25 is a support that receives a downward load applied to the lower beam 21. Each first upper fixed base 261 is a support that receives a downward load applied to the first upper beam 221, and each second upper fixed base 262 is a support that receives a downward load applied to the second upper beam 222. It is a tool.

  In this example, when the hoistway 1 is viewed from above, the straight line B connecting the guide portions 5b of the pair of counterweight guide rails 5 and the axis of the counterweight suspension wheel 9 are parallel. . Other configurations are the same as those of the second embodiment.

  In such an elevator apparatus, the maintenance space 30 exists between one counterweight guide rail 5 and the hoisting machine 7, and the position of the uppermost portion of the first weight side main clasp portion 121 is the winding position. The position is higher than the position of the uppermost part of the upper machine 7, and the position of the uppermost part of the second weight side main clasp 122 is lower than the position of the uppermost part of the hoisting machine 7. In addition, since the second weight side main clasp portion 122 is disposed closer to the maintenance space 30 than the first weight side main clasp portion 121, the maintenance staff on the car 2 is on the second weight side. It becomes easier to access the main rope stopper 122 through the maintenance space 30, and the maintenance work for the weight side main rope end device 10 can be further facilitated.

  Since the lower beam 21, the first upper beam 221 and the second upper beam 222 are individually fixed to the pair of counterweight guide rails 5, the lower beam 21, the first beam Each of the first upper beam 221 and the second upper beam 222 can be installed independently. For example, the hoisting machine 7 and the weight-side main rope end device 10 are arranged on either the left side of the car 2 or the right side of the car 2. The same parts can be used for the lower beam 21, the first upper beam 221, and the second upper beam 222.

Embodiment 4 FIG.
FIG. 9 is an upper side view showing an elevator apparatus according to Embodiment 4 of the present invention. The unit frame 24 to which the hoisting machine 7 and the weight side main rope end device 10 are attached is fixed not only to the pair of counterweight guide rails 5 but also to the car guide rail 4 that guides the movement of the car 2. Yes. The unit frame 24 is fixed to one of the pair of car guide rails 4 that is disposed at a position close to the counterweight guide rail 5.

  The lower part of the unit frame 24 is fixed to a pair of counterweight guide rails 5 and one car guide rail 4 by a pair of lower fixing bases 25. The lower part of the unit frame 24 is fixed only to one counterweight guide rail 5 by one lower fixing base 25, and to the other counterweight guide rail 5 and one car guide rail 4 by the other lower fixing base 25. It is fixed together. The upper part of the unit frame 24 is fixed only to one counterweight guide rail 5 by one upper fixing base 26, and to the other counterweight guide rail 5 and one car guide rail 4 by the other upper fixing base 26. It is fixed together. Other configurations are the same as those in the first embodiment.

  In such an elevator apparatus, the unit frame 24 to which the hoisting machine 7 and the weight side main rope end apparatus 10 are attached is fixed not only to the pair of counterweight guide rails 5 but also to the car guide rails 5. Therefore, the load applied to the unit frame 24 can be shared and supported by a larger number of guide rails than the two counterweight guide rails 5, and the load acting on each guide rail is reduced. be able to.

Embodiment 5. FIG.
FIG. 10 is a top view showing an elevator apparatus according to Embodiment 5 of the present invention. FIG. 11 is an upper side view showing the elevator apparatus of FIG. The weight side main rope end device 10 includes a plurality of weight side main rope holding portions 121 and 122 to which the first end portions 14a of the plurality of main ropes 14 are individually connected. Among the plurality of weight-side main clasp portions 121, 122, a part of the weight-side main clasp portion is the first weight-side main clasp portion 121, and the remaining weight-side main clasp portion is the second weight. The side main clasp 122 is used. Each configuration of the first weight side main clasp portion 121 and the second weight side main clasp portion 122 is the same as the configuration of the weight side main clasp portion 12 in the first embodiment.

  As shown in FIG. 11, the uppermost position of the first weight side main clasp part 121 is higher than the uppermost position of the hoisting machine 7. In this example, the positions of the receiving plate 32, the spring 33, and the nut 34 of the first weight side main clasp portion 121 are higher than the uppermost position of the hoisting machine 7. The uppermost position of the second weight side main clasp 122 is lower than the hoisting machine 7.

  Each first weight side main clasp part 121 is supported by the first upper beam 221, and each second weight side main clasp part 122 is supported by the second upper beam 222. The hoisting machine 7 is supported by the lower beam 21 as in the third embodiment. The position of the first upper beam 221 is higher than the position of the lower beam 21. The position of the second upper beam 222 is lower than the position of the lower beam 21. Thereby, the second weight side main clasp portion 122 is disposed at a position lower than the lower beam 21. The lower beam 21, the first upper beam 221 and the second upper beam 222 are separate beams separated from each other. That is, the hoisting machine 7, the first weight side main clasp portion 121 and the second weight side main clasp portion 122 are individually supported by a plurality of beams 21, 221, 222 separated from each other. The lower beam 21, the first upper beam 221, and the second upper beam 222, that is, the plurality of beams 21, 221, and 222 are individually fixed to the pair of counterweight guide rails 5. The structure for fixing the plurality of beams 21, 221, 222 to the pair of counterweight guide rails 5 is the same as that of the third embodiment.

  Each first weight side main clasp portion 121 and each second weight side main clasp portion 122 have a pair of counterweight guide rails 5 as shown in FIG. 10 when the hoistway 1 is viewed from above. Are arranged in a line along a straight line B connecting the respective guide portions 5b. That is, in the weight side main rope end device 10, when the hoistway 1 is viewed from above, as shown in FIG. 10, the rows of the first weight side main rope holding portions 121 and the second weight side main rope hold are provided. The rows of the portions 122 are two rows adjacent to each other in the direction orthogonal to the straight line B. Moreover, each 1st weight side main clasp part 121 is arrange | positioned in the position near the hoistway wall surface 1a rather than each 2nd weight side main clasp part 122, when seeing the hoistway 1 from the top. . Thereby, each 2nd weight side main clasp part 122 is arranged in the position nearer to car 2 than each 1st weight side main clasp part 121 when hoistway 1 is seen from the top. Further, when the hoistway 1 is viewed from above, as shown in FIG. 10, each first weight side main rope holding portion 121 is disposed outside the area of the hoisting machine 7, and each second weight side main rope is located. A stop 122 is arranged in the area of the hoisting machine 7. Other configurations are the same as those of the third embodiment.

  Here, in the elevator in which the size of the car 2 is increased and the number of the main ropes 14 is increased, the number of the weight side main rope stoppers of the weight side main rope end device 10 is increased. If the rope stoppers are arranged in a row, the approach angle of the main rope 14 with respect to the weight suspension vehicle 9 becomes extremely large, and there is a problem that the life of the main rope 14 is shortened. Therefore, when the number of main ropes 14 increases, the rows where the plurality of weight side main rope stoppers are arranged may be two rows, a row closer to the car 2 and a row farther from the car 2. . If there are two rows in which multiple weight side main clasps are arranged, it will be difficult to access the weight side main cleats on the far side as viewed from the car 2 side from the top of the car 2, and the weight side main clasp It takes time to perform maintenance work on the parts. In addition, it is possible to make all the weight side main rope stoppers of the weight side main rope end device 10 higher than the uppermost part of the hoisting machine 7 for easy access from the car 2 side. Since there are two rows of main clasps, it is necessary to increase the distance between the hoistway wall surface 1a and the hoisting machine 7.

  On the other hand, in the elevator apparatus according to Embodiment 5, the position of the uppermost portion of the first weight side main clasp portion 121 is higher than the position of the uppermost portion of the hoisting machine 7, Since the uppermost position of the weight side main clasp part 122 is lower than the hoisting machine 7, the first weight side main clasp part 121 can be easily accessed from above the hoisting machine 7. The second weight side main clasp portion 122 can be easily accessed from below the hoisting machine 7. Thereby, the maintenance operation | work with respect to the weight side main rope end apparatus 10 can be made easy from the cage | basket | car 2 top. Moreover, since the 2nd weight side main clasp part 121 can be approached to the cage | basket | car 2 below the hoisting machine 7 without interfering with the hoisting machine 7, the 1st weight side main clasp part 121 forms a line. Even if the row and the row in which the second weight side main clasp portions 122 are arranged are two rows when the hoistway 1 is viewed from above, it is between the hoistway wall surface 1a and the hoisting machine 7. The first weight side main clasp portion 121 and the second weight side main clasp portion 122 can be arranged in the hoistway 1 without increasing the distance. Furthermore, when the number of main ropes 14 increases, the size of the car 2 increases, so that the distance between the pair of counterweight guide rails 5 can be increased. Thereby, the width dimension of the counterweight 3 spreads, the height dimension of the counterweight 3 can be made small, and the range of movement of the counterweight 3 in the vertical direction can be ensured.

  In the second embodiment, the lower beam 21 and the upper beam 22 are individually fixed to the pair of counterweight guide rails 5, but only the pair of counterweight guide rails 5 as in the fourth embodiment. Alternatively, the lower beam 21 and the upper beam 22 may be individually fixed to one of the car guide rails 4. Even if it does in this way, the load which acts on one guide rail can be reduced.

  In the third and fifth embodiments, the lower beam 21, the first upper beam 221 and the second upper beam 222 are individually fixed to the pair of counterweight guide rails 5. Similarly, the lower beam 21, the first upper beam 221, and the second upper beam 222 may be individually fixed not only to the pair of counterweight guide rails 5 but also to one of the car guide rails 4. Even if it does in this way, the load which acts on one guide rail can be reduced.

  In the third and fifth embodiments, the lower beam 21, the first upper beam 221 and the second upper beam 222 are individually fixed to the pair of counterweight guide rails 5. However, the present invention is not limited to this. As in the first embodiment, the lower beam 21, the first upper beam 221 and the second upper beam 222 are coupled to the lower beam 21, the first upper beam 221 and the second upper beam 222. A unit frame having vertical columns may be fixed to the pair of counterweight guide rails 5. If it does in this way, transportation work and installation work can be performed in the state where hoisting machine 7 was attached to the unit frame, and installation work of hoisting machine 7 and weight side main rope end device 10 will be made easier. Can do.

  When the unit frame is fixed to the pair of counterweight guide rails 5 in the third and fifth embodiments, not only the pair of counterweight guide rails 5 but also one of the car guide rails 4 as in the fourth embodiment. Also, the unit frame may be fixed.

  Further, in each of the above embodiments, when the hoistway 1 is viewed from above, the hoisting machine 7 is arranged with the driving sheave 72 facing the car 2 and the drive device main body 71 facing the hoistway wall surface 1a. However, the present invention is not limited to this, and when the hoistway 1 is viewed from above, the hoisting machine 7 with the drive sheave 72 facing the hoistway wall surface 1a and the drive device main body 71 facing the car 2 is used. May be arranged.

Claims (14)

A car and a counterweight that can move up and down in the hoistway;
A pair of counterweight guide rails provided in the hoistway for guiding the movement of the counterweight;
A driving device having a driving sheave and generating a driving force for moving the car and the counterweight;
A weight-side main rope end device having a weight-side main rope stopping portion and provided at an upper portion in the hoistway;
A car-side main rope end device having a car-side main rope holding portion and provided at an upper portion in the hoistway; a first end portion connected to the weight-side main rope holding portion; and the car A second end connected to the side main rope stopper, and the main rope hanging the car and the counterweight in a state of being wound around the driving sheave,
The driving device is provided immediately above the range of movement of the counterweight, and is disposed outside the area of the car when the hoistway is viewed from above.
The elevator device in which the uppermost position of the weight side main rope end device is higher than the uppermost position of the driving device. The basket and the counterweight are suspended by a plurality of the main ropes,
The weight-side main rope end device has a plurality of weight-side main rope holding portions to which the first ends of the plurality of main ropes are individually connected,
Among the plurality of weight-side main clasps, some of the weight-side main clasps are the first weight-side main clasps, and the remaining weight-side main clasps are the second weight-side main clasps. It is a stop,
The uppermost position of the first weight side main clasp is higher than the uppermost position of the driving device;
The uppermost position of the second weight side main clasp is lower than the uppermost position of the driving device;
The driving device is disposed at a position closer to the other counterweight guide rail than the counterweight guide rail of one of the pair of counterweight guide rails. There is a maintenance space between the rail and the drive,
2. The elevator apparatus according to claim 1, wherein the second weight side main clasp portion is disposed closer to the maintenance space than the first weight side main clasp portion. The basket and the counterweight are suspended by a plurality of the main ropes,
The weight-side main rope end device has a plurality of weight-side main rope holding portions to which the first ends of the plurality of main ropes are individually connected,
Among the plurality of weight-side main clasps, some of the weight-side main clasps are the first weight-side main clasps, and the remaining weight-side main clasps are the second weight-side main clasps. It is a stop,
The uppermost position of the first weight side main clasp is higher than the uppermost position of the driving device;
The position of the uppermost part of the second weight side main clasp is a position lower than the driving device,
The said 2nd weight side main clasp part is arrange | positioned in the position near the said cage rather than a said 1st weight side main clasp part when the said hoistway is seen from the top. Elevator device.   Fixed to the pair of counterweight guide rails is a unit frame having a plurality of beams that individually support the first weight side main clasp portion, the second weight side main clasp portion, and the driving device. The elevator apparatus according to claim 2 or 3, wherein the elevator apparatus is provided. The first weight side main clasp portion, the second weight side main clasp portion, and the driving device are individually supported by a plurality of beams,
The elevator apparatus according to claim 2 or 3, wherein the plurality of beams are individually fixed to the pair of counterweight guide rails.   The elevator apparatus according to claim 1, wherein a unit frame having a plurality of beams that individually support the weight side main rope end device and the driving device is fixed to the pair of counterweight guide rails. The weight side main rope end device and the driving device are individually supported by a plurality of beams,
The elevator apparatus according to claim 1, wherein the plurality of beams are individually fixed to the pair of counterweight guide rails.   The elevator apparatus according to claim 4 or 6, wherein the unit frame is also fixed to a car guide rail that guides the movement of the car.   The elevator apparatus according to claim 5 or 7, wherein the plurality of beams are also fixed to a car guide rail that guides the movement of the car.   The straight line connecting the pair of counterweight guide rails passes between the driving sheave and the weight side main rope end device when the hoistway is viewed from above. The elevator apparatus as described in any one of these.   When the hoistway is viewed from above, a beam that supports the driving device among the plurality of beams protrudes from the region of the driving device toward the weight side main rope end device. Item 11. The elevator apparatus according to any one of Items 10.   The weight side main rope holding portion receives a shackle rod connected to the first end, an elastic body receiver provided on the shackle rod, and a load applied to the main rope from the elastic body receiver. The elevator apparatus according to any one of claims 1 to 11, further comprising: an elastic body; and an adjustment tool that is provided on the shackle rod and adjusts a position of the elastic body receiver with respect to the shackle rod.   A part of the weight side main rope end device is located in the region of the drive device when the drive device is viewed along a direction perpendicular to a plane connecting the pair of counterweight guide rails. The elevator apparatus as described in any one of Claims 1-12.   When the hoistway is viewed from above, the drive device is arranged with the drive sheave facing the car, and the axis of the drive sheave is in a straight line connecting the pair of counterweight guide rails. The elevator apparatus as described in any one of Claims 1-13 which are orthogonally crossed.

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