JP5676556B2 - Elevator equipment - Google Patents

Description

  Embodiments described herein relate generally to an elevator apparatus.

  Generally, in buildings such as medium- and high-rise office buildings and large-scale stores, the number of elevators installed is increased because the number of elevator passengers moving between floors increases.

  However, in this case, since many hoistways (shafts) in which the elevator car moves up and down are installed in the building, the ratio of the hoistway to the volume of the building increases. As a result, the space that can be effectively used as a building is reduced, and there is a problem that the advantages of increasing the size and height of the building are lost.

  As one effective measure against this problem, a double deck elevator (two-story elevator) is known. In a double deck elevator, for example, when going to work, the `` double operation mode '' in which the lower car stops only on the odd floor and the upper car stops only on the even floor is used to efficiently concentrate passengers who concentrate in a specific time zone It is transported. In this “double operation mode”, the number of times the car can be stopped can be reduced to about half, so the time required for the car to drive from the entrance floor to the top floor and return to the entrance floor is reduced to about half. be able to.

  For this reason, the number of transport passengers per hoistway can be increased to about 1.8 times that of a normal single car elevator. That is, the double deck elevator is often used particularly in a high-rise office building as an effective elevator device capable of reducing the number of hoistways to 1 / 1.8 while ensuring the required passenger transportation capacity. .

  The double deck elevator is a building that can take advantage of the “double operation mode”, and is suitable for installation in office buildings where many passengers get on the same floor during the work hours and lunch hours and get off at the same floor. ing. The double deck elevator is also suitable for installation in a building where shuttle operation is performed in which a specific floor is reciprocated.

  However, in the above-mentioned “double operation mode”, the upper and lower cars stop only on the odd floor or the even floor. For this reason, passengers who wish to move from the even floor to the odd floor or vice versa cannot go directly to the destination floor. As a result, there is a problem that the merit that the elevator should have “directly to the destination floor” is impaired. For this reason, it is difficult to apply the “double operation mode” in a building with many passengers moving between unspecified floors such as a large-scale store such as a department store.

  In order to solve such a problem, there is known a “1-shaft multi-car elevator device” in which two cars traveling independently in the same hoistway are arranged (see, for example, Patent Document 1). Since this system is a system for running two independent cars in the same hoistway (shaft), the upper car and the lower car can be stopped separately on any floor. For this reason, it is a system that is easy for passengers who wish to move from even floors to odd floors. In addition, since two cars can be arranged in one hoistway, passenger transportation capacity equivalent to that of a double deck elevator can be expected.

  However, since this “one-shaft multi-car elevator device” is a system in which the upper car and the lower car are lifted and lowered separately in one hoistway, the vertical arrangement of the car cannot be changed. In other words, since one car cannot overtake the other car, if the upper car and the lower car go in a direction facing each other and face each other, a state in which the car cannot move forward (stuck) may occur. .

  In order to deal with such a “stuck”, in the “1-shaft multi-car elevator device”, a passenger registers a destination floor in advance at a hall (hall) of each floor, and a passenger who has registered the destination floor should get on the car. "Target floor advance registration system" is applied. As a result, a car suitable for the destination floor of the passenger waiting at the landing can be allocated, and the occurrence of “stuck” can be prevented.

  However, even in this case, it is difficult to accurately predict the passenger getting-on / off time at each landing. For this reason, it is not enough to prevent “stuck”.

  There is also known an elevator apparatus in which a plurality of elevator cars travel in a circulating hoistway (see, for example, Patent Document 2). However, even in this elevator apparatus, it is difficult to accurately predict the passenger getting-on / off time at each landing. For this reason, a situation may occur in which one car cannot move forward due to the presence of a preceding car.

JP 2004-155519 A JP-A-4-313585

  In order to solve the problem of “stuck” as described above, in the “1-shaft multi-car elevator device”, an elevator device provided with a laterally movable car that can move laterally between adjacent hoistways has been studied. Yes. In such an elevator apparatus, a laterally moving car existing in a hoistway where a “dead end” is likely to occur is moved to the other hoistway. In this way, “stuck” can be avoided.

  FIG. 12 to FIG. 15 show an example of the configuration of the elevator apparatus 201 having the laterally moving car 230 described above. As shown in FIG. 12, the elevator apparatus 201 includes a first elevator car 210 that can move up and down in the first hoistway 202, a second elevator car 220 that can move up and down in the second hoistway 203, and a first elevator car. There is provided a laterally moving cage 230 that can move up and down in the path 202 and the second hoistway 203 and is movable in the lateral direction between the first hoistway 202 and the second hoistway 203. Here, the second hoistway 203 is formed in a continuous space in parallel with the first hoistway 202.

  The first hoistway 202 is provided with a pair of first car guide rails 211. In addition, a first guide roller 212 is provided in the first elevator car 210, and the first guide roller 212 is guided by a first car guide rail 211. As shown in FIG. 13, a first counterweight 214 is connected to the first elevator cage 210 via a first rope 213. The first rope 213 is wound up by the first hoisting machine 215, and the first hoisting machine 215 moves up and down the first elevating cage 210 via the first rope 213.

  As shown in FIG. 12, the second hoistway 203 is provided with a pair of second car guide rails 221. In addition, a second guide roller 222 is provided in the second elevator car 220, and the second guide roller 222 is guided by the second car guide rail 221. As shown in FIG. 13, a second counterweight 224 (see FIG. 14) is connected to the second elevator cage 220 via a second rope 223. The second rope 223 is wound up by the second hoisting machine 225, and the second hoisting machine 225 moves up and down the second elevating car 220 via the second rope 223.

  As shown in FIG. 12, the laterally moving car 230 is supported by a support frame 231 and moves up and down in the first hoistway 202 or the second hoistway 203. That is, a third car guide rail 232 is provided in the first hoistway 202, a fourth car guide rail 233 is provided in the second hoistway 203, and the support frame 231 is the third car guide rail 232. And it is guided by the guide rail 233 for 4th cars, and it raises / lowers. Here, a third guide roller 234 and a fourth guide roller 235 are provided on the support frame 231, the third guide roller 234 is guided by the third car guide rail 232, and the fourth guide roller 235 is the fourth guide roller 235. It is guided by the guide rail 233 for the car.

  As shown in FIG. 13, a lateral movement car counterweight 237 (see FIG. 14) is connected to the support frame 231 via a lateral movement car rope 236. The lateral movement car rope 236 is wound up by a lateral movement car hoist 238, and the lateral movement car hoist 238 moves up and down the lateral movement car 230 via the lateral movement car rope 236. Yes.

  As shown in FIG. 12, the laterally moving cage 230 is movable in the lateral direction with respect to the support frame 231 by the laterally moving mechanism 240. That is, the lateral movement mechanism 240 includes a lateral movement ball screw shaft 241 provided on the support frame 231, a lateral movement ball screw nut 242 screwed into the lateral movement ball screw shaft 241, and a lateral movement ball screw shaft. And a lateral movement motor 243 for rotating 241. An arm 244 is connected to the lateral movement ball screw nut 242, and a lateral movement cage 230 is connected to the arm 244. As a result, when the lateral movement motor 243 is driven, the lateral movement ball screw shaft 241 rotates, and the lateral movement cage 230 moves relative to the support frame 231 via the lateral movement ball screw nut 242 and the arm 244. It can move in the horizontal direction.

  In the elevator apparatus 201 configured as described above, the first elevator car 210 moves up and down in the first hoistway 202, and the second elevator car 220 moves up and down in the second hoistway 203. The horizontally moving car 230 moves up and down in the first hoistway 202 or the second hoistway 203. For example, when the first elevator car 210 approaches the laterally moving car 230 that is moving up and down in the first hoistway 202 and a “deadlock” is likely to occur, the lateral movement provided in the support frame 231 is performed. The lateral movement motor 243 of the mechanism 240 is driven. As a result, the laterally moving car 230 can move in the lateral direction from the first hoistway 202 to the second hoistway 203, and the occurrence of “clogging” can be prevented. For this reason, it is possible to prevent “clogging” without using the “target floor advance registration system” described above, and the merits of the “1-shaft multi-car elevator device” at a low cost by using a simplified control method. Can be maximized.

  However, in order to make the lateral movement cage 230 movable in the lateral direction, members such as guide rails 211, 221, 232, tail cords (not shown), in addition to the ropes 213, 223, 236 described above, It is difficult to pass through the trajectory area defined by the trajectory of the lateral movement of the lateral movement car 230. Therefore, as shown in FIG. 14, members such as ropes 213, 223, 236, guide rails 211, 221, 232, and the like are regions around the first lifting cage 210 and the second lifting cage 220, and the first lifting elevator It is disposed in the vicinity of the wall surface of the path 202 or in the vicinity of the wall surface of the second hoistway 203. In FIG. 14, for the sake of clarity, the laterally moving cage 230 is shown slightly shifted rearward from the first elevator cage 210 and the second elevator cage 220.

  That is, the first rope 213 connected to the first lifting cage 210 in order to make the laterally moving cage 230 movable in the lateral direction is shown in FIG. 14 of the first lifting cage 210 together with the first counterweight 214. It is arranged on the left side (the side opposite to the second lifting cage 220 side). The first rope 213 is wound around a pair of first car sheaves 216 provided in the first elevator car 210. In this case, the pair of first car sheaves 216 are arranged so as to be biased to one side (left side in FIG. 14) in plan view with respect to the center of gravity position G1 of the first elevator car 210. Thus, there is a problem that a moment due to the weight of the first lifting cage 210 is generated in the direction in which the first lifting cage 210 is inclined downward due to the tension of the first rope 213.

  Here, FIG. 15 is a diagram for explaining the generation of the moment due to the weight of the car. As shown in FIG. 15, while the elevator apparatus 201 is in operation, the first elevator car 210 having the mass W <b> 1 receives the tension T <b> 1 from the first rope 213. As a result, a moment M1 around the gravity center position G1 is applied to the first elevator car 210.

  The first guide roller 212 is increased in size to increase the strength and rigidity in order to maintain the posture of the first elevator car 210 horizontally against the moment M1, and the cost of the guide roller increases. is there. Further, in this case, a large force is applied to the first guide roller 212, the first car guide rail 211 is deformed, and the first elevating car 210 may be vibrated during the elevating and the riding comfort may be deteriorated. .

  In addition, the second rope 223 connected to the second lifting / lowering cage 220 is shown in FIG. 14 of the second lifting / lowering cage 220 together with the second counterweight 224 in order to make the laterally moving cage 230 movable in the lateral direction. It is arranged on the right side (the side opposite to the first elevator car 210 side). The second rope 223 is wound around a pair of second car sheaves 226 provided on the second elevator car 220. In this case, the pair of second car sheaves 226 are arranged so as to be biased in a plan view with respect to the gravity center position G2 of the second elevator car 220. Accordingly, there is a problem that a moment due to the weight of the second lifting cage 220 is generated in the direction in which the second lifting cage 220 is inclined downward due to the tension of the second rope 223.

  As shown in FIG. 15, the second lifting cage 220 having the mass W <b> 2 receives a tension T <b> 2 from the second rope 223. As a result, a moment M2 around the gravity center position G2 is applied to the second elevator car 220.

  The second guide roller 222 is increased in size to increase the strength and rigidity in order to maintain the posture of the second elevator car 220 horizontally against the moment M2, and the cost of the guide roller increases. is there. Further, in this case, a large force is applied to the second guide roller 222, the second car guide rail 221 is deformed, and vibration may be generated in the second elevator car 220 during raising and lowering, which may deteriorate riding comfort. .

  The present invention has been made in consideration of such points, and is an elevator apparatus having a laterally movable car that is movable in a lateral direction between a first hoistway and a second hoistway, An object of the present invention is to provide an elevator apparatus that can reduce the moment applied to the car in a direction in which the car is inclined downward by tension, and can improve the riding comfort at low cost.

  According to the embodiment, a first lifting car that can freely move up and down in the first hoistway, a first lifting car counterweight connected to the first lifting car via a first lifting car rope, A first elevator car lifting / lowering drive unit for raising and lowering the first elevator car via the first elevator car rope and a second elevator shaft formed in a continuous space in parallel with the first elevator shaft A lateral movement that can freely move up and down in the first hoistway and in the second hoistway and move in the lateral direction between the first hoistway and the second hoistway. And a lateral movement mechanism for moving the lateral movement car in a lateral direction, wherein the first elevator car rope passes outside a trajectory region defined by a trajectory of the lateral movement of the lateral movement car. The first elevator car rope is wound around the first elevator car A pair of first elevator car sheaves are provided, and the position of the center of gravity of the first elevator car is arranged between the pair of first elevator car sheaves in plan view. Is done.

  In addition, according to the embodiment, the first hoistway that can be raised and lowered in the first hoistway, and the second elevating and lowering that can be raised and lowered in the second hoistway formed in a continuous space in parallel with the first hoistway. The cage is formed from the first hoistway to the second hoistway, and can be moved up and down in the first hoistway and the second hoistway, and provided in the support frame so as to be movable laterally. A first laterally movable car connected to the support frame via a first laterally movable cage rope, and a laterally movable laterally movable between the first hoistway and the second hoistway. A counterweight connected to the support frame via a second lateral movement cage rope; a counterbalance driving unit for raising and lowering the support frame via the first lateral movement cage rope; and a second lateral movement cage rope connected to the support frame. 2 a counterweight for a laterally moving car, and the first laterally moving car rope is wrapped around the support frame. A pair of first laterally moving car sheaves and a second laterally moving car sheave around which the second laterally moving car rope is wound are provided, and the pair of first laterally moving car sheaves An elevator apparatus is provided in which the position of the center of gravity of the laterally moving car is arranged in a plan view between the straight line connecting the two and the sheave for the second laterally moving car.

FIG. 1 is a perspective view showing the overall configuration of the elevator apparatus according to the first embodiment. FIG. 2 is a perspective view for explaining the arrangement of the first elevator car, the first rope, and the first hoisting machine in the elevator apparatus of FIG. 1. FIG. 3 is a plan view showing the first elevator car and the second elevator car in the elevator apparatus of FIG. 1. FIG. 4 is a perspective view for explaining the arrangement of the lateral movement car, the lateral movement car rope, and the lateral movement car hoisting machine in the elevator apparatus of FIG. 1. FIG. 5 is a plan view showing a laterally moving car in the elevator apparatus of FIG. FIG. 6 is a diagram illustrating a relationship of forces acting on the first elevator car in the elevator apparatus of FIG. 1. FIG. 7 is a view for explaining the lateral movement of the laterally moving car in the elevator apparatus of FIG. 1, and shows a state where the laterally moving car is located on the first hoistway side. FIG. 8 is a view for explaining the lateral movement of the laterally moving car in the elevator apparatus of FIG. 1, and shows a state where the laterally moving car is located on the second hoistway side. FIG. 9 is a perspective view for explaining the arrangement of the lateral movement car, the lateral movement car rope, and the lateral movement car hoisting machine in the elevator apparatus according to the second embodiment. FIGS. 10A and 10B are diagrams for explaining the lateral movement of the laterally moving car in the elevator apparatus according to the third embodiment. FIG. 11 is a diagram for explaining the lateral movement of the lateral movement car in the elevator apparatus according to the fourth embodiment. FIG. 12 is a perspective view showing an overall configuration of a conventional elevator apparatus. FIG. 13 is a perspective view for explaining the arrangement of the car rope and the hoisting machine in the elevator apparatus of FIG. 12. FIG. 14 is a plan view showing a first elevator car, a second elevator car, and a laterally moving car in the elevator apparatus of FIG. FIG. 15 is a diagram showing a relationship of forces acting on the first elevator car and the second elevator car in the elevator apparatus of FIG.

  An elevator apparatus according to an embodiment of the present invention will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual ones.

(First embodiment)
The elevator apparatus in 1st Embodiment is demonstrated using FIG. 1 thru | or FIG.

  As shown in FIG. 1, an elevator apparatus 1 includes a first elevator car 10 that can be raised and lowered in a first hoistway 2, a second elevator car 30 that can be raised and lowered in a second hoistway 3, and a first hoistway. 2 and a second hoistway 3, and a laterally moving cage 50 that is movable in the lateral direction between the first hoistway 2 and the second hoistway 3. Here, the second hoistway 3 is integrally formed in a continuous space in parallel with the first hoistway 2. In such a configuration, each car moves up and down in the first hoistway 2 or the second hoistway 3, so that the halls 4 (FIG. 3, etc.) provided on each floor of the building where the elevator apparatus 1 is installed. The elevator passengers are transported to the destination floor. Note that the lateral direction means a horizontal direction orthogonal to the front-rear direction of the car when the car is viewed from the landing 4 side, for example, the left-right direction in FIG.

  As shown in FIG. 2, a first counterweight (first elevator car counterweight) 12 is connected to the first elevator car 10 via a first rope (first elevator car rope) 11. Yes. The first rope 11 is wound up by a first hoisting machine (first elevating car elevating drive unit) 13, and the first hoisting machine 13 moves up and down the first elevating car 10 via the first rope 11. It has become. In addition, the 1st hoisting machine 13 is arrange | positioned at the upper part of the 1st hoistway 2, and the 1st hoisting machine 13 around which the 1st rope 11 was wound is provided in the 1st hoisting machine 13. Yes. A first deflecting sheave 15 is provided on the side of the first drive sheave 14.

  The first elevator car 10 is provided with a pair of first car sheaves (first elevator car sheaves) 16 around which a first rope 11 is wound. The first counterweight 12 is provided with a first weight sheave 17 around which the first rope 11 is wound.

  Note that both ends of the first rope 11 are fixed to the hoistway wall (for example, the ceiling of the hoistway) by the first hitch portion 18 and are wound around each sheave. That is, the first rope 11 extends downward from one of the first hitch portions 18 and is wound around the first weight sheave 17. The first rope 11 extends upward from the first weight sheave 17 and is wound around the first drive sheave 14. Yes. The first rope 11 extends laterally from the first drive sheave 14 and is wound around the first deflecting sheave 15, and extends downward from the first deflecting sheave 15 and is wound around the pair of first car sheaves 16. The first car sheave 16 extends upward and is fixed to the other first hitch portion 18. Further, the first rope 11 passes through the outside of the first elevator car 10 in plan view and also passes through the outside of a trajectory region 58 (see FIG. 5) described later of the laterally moving car 50.

  As shown in FIG. 3, the first hoistway 2 is provided with a pair of first car guide rails 20. The first elevating car 10 is provided with a first guide roller 212 (see FIG. 12 and the like), and the first guide roller 212 is guided by the first car guide rail 20. In this way, when the first rope 11 is wound up by the first hoisting machine 13, the first elevating car 10 is guided by the first car guide rails 20 to move up and down. The pair of first car guide rails 20 are arranged on the opposite side (left side in FIG. 3) to the second hoistway 3 side of the first hoisting car 10 in a plan view.

  The first hoistway 2 is provided with a pair of first weight guide rails 21. When the first rope 11 is wound up by the first hoisting machine 13, the first counterweight 12 is guided by the first weight guide rail 21 to move up and down. The first counterweight 12 and the pair of first weight guide rails 21 are opposite to the second hoistway 3 side (left side in FIG. 3) from the first car guide rail 20 in plan view. Is arranged.

  As shown in FIG. 3, the center of gravity position G <b> 1 of the first elevator car 10 is arranged between the pair of first car sheaves 16 in a plan view. That is, one first car sheave 16 of the pair of first car sheaves 16 is on the second hoistway 3 side and the front side (the landing 4 side) with respect to the center of gravity position G1 of the first hoisting car 10 in a plan view. ). Further, the other first car sheave 16 is disposed on the opposite side to the second hoistway 3 side and the rear side of the center of gravity position G1 of the first hoisting car 10 in a plan view.

  Specifically, as shown in FIGS. 1 to 3, the first elevator car 10 is supported by a first car frame 22, and the first car frame 22 is provided above the first elevator car 10. Moreover, it has the 1st sheave beam 23 extended linearly. The first sheave beam 23 is horizontally arranged so as to be inclined with respect to the front-rear direction of the first elevator car 10 (front-rear direction of the car when viewed from the side of the hall 4, the depth direction). That is, as shown in FIG. 3, the end portion of the first sheave beam 23 on the second hoistway 3 side is arranged at the front portion of the first elevator car 10. The end opposite to the second hoistway 3 side is disposed at the rear of the first hoisting car 10. The first car sheave 16 is rotatably attached to both ends of the first sheave beam 23. At this time, the distance L1 between the center of gravity position G1 of the first elevator car 10 and one of the first car sheaves 16 is equal to the distance L2 between the center of gravity position G1 of the first elevator car 10 and the other first car sheave 16; The pair of first car sheaves 16 are preferably arranged symmetrically with respect to the center of gravity position G1 of the first elevator car 10 in a plan view. Here, the term “equal” and the term “point symmetry” are not limited to strict meanings, and the moment around the center of gravity position due to the tension of the portion of the first rope 11 on the first car sheave 16 side, This is used to include a manufacturing error or the like that can be considered to be substantially equal to the moment around the center of gravity due to the tension of the portion of the first rope 11 on the first car sheave 16 side.

  The second elevator car 30 is configured to move up and down in the second hoistway 3 with the same configuration as the first elevator car 10. That is, as shown in FIG. 2, a second counterweight 32 (see FIG. 3) is connected to the second elevator car 30 via the second rope 31. The second rope 31 is wound up by a second hoisting machine (second elevating drive unit) (not shown), and the second hoisting machine moves up and down the second elevating cage 30 via the second rope 31. Yes. The second hoisting machine is disposed at the upper part of the second hoistway 3, and the second hoisting machine is provided with a second drive sheave (not shown) around which the second rope 31 is wound. It has been. A second deflecting sheave (not shown) is provided on the side of the second drive sheave.

  The second elevator car 30 is provided with a pair of second car sheaves 36 around which a second rope 31 is wound. The second counterweight 32 is provided with a second weight sheave 37 around which the second rope 31 is wound.

  In addition, the 2nd rope 31 is fixed to the hoistway wall (for example, ceiling of a hoistway) by the 2nd hitch part which is not shown in figure, and is wound around each sheave. That is, the second rope 31 extends downward from one of the second hitch portions and is wound around the second weight sheave 37, and extends upward from the second weight sheave 37 and is wound around the second drive sheave. The second rope 31 extends laterally from the second drive sheave and is wound around the second deflecting sheave. The second rope 31 extends downward from the second deflecting sheave and is wound around the pair of second car sheaves 36. It extends upward from the two-car sheave 36 and is fixed to the other second hitch portion. In addition, the second rope 31 passes through the outside of the second elevator car 30 in plan view and also passes through the outside of a trajectory region 58 (see FIG. 5) described later of the laterally moving car 50.

  As shown in FIG. 3, the second hoistway 3 is provided with a pair of second car guide rails 40. The second elevator car 30 is provided with a second guide roller 222 (see FIG. 12), and the second guide roller 222 is guided by the second car guide rail 40. In this way, when the second rope 31 is wound up by the second hoisting machine, the second elevating car 30 is guided by the second car guide rail 40 to be raised and lowered. The pair of second car guide rails 40 are disposed on the opposite side (right side in FIG. 3) from the first hoistway 2 side with respect to the second hoisting car 30 in plan view.

  A pair of second weight guide rails 41 is provided in the second hoistway 3. When the second rope 31 is wound up by the second hoisting machine, the second counterweight 32 is guided by the second weight guide rail 41 to move up and down. The second counterweight 32 and the pair of second weight guide rails 41 are opposite to the first hoistway 2 side than the second car guide rail 40 in a plan view (right side in FIG. 3). Is arranged.

  The second car sheave 36 is arranged in the first elevator car 10 in the same manner as the first car sheave 16 provided in the first elevator car 10. That is, as shown in FIG. 3, the center of gravity position G2 of the second elevator car 30 is arranged between the pair of second car sheaves 36 in plan view. More specifically, one second car sheave 36 of the pair of second car sheaves 36 is disposed on the first hoistway 2 side and in front of the center of gravity G2 of the second hoisting car 30 in plan view. Has been. Further, the other second car sheave 36 is disposed on the opposite side to the first hoistway 2 side and the rear of the center of gravity position G2 of the second hoisting car 30 in plan view. These second car sheaves 36 are attached to the second sheave beam 43 of the second car frame 42 provided above the second elevator car 30 in the same manner as the first car sheave 16. The pair of second car sheaves 36 are preferably arranged point-symmetrically with respect to the gravity center position G <b> 2 of the second elevator car 30.

  As shown in FIG. 1, the horizontally moving car 50 is supported by a support frame 51 so as to move up and down in the first hoistway 2 or the second hoistway 3. The support frame 51 is formed from the first hoistway 2 to the second hoistway 3 and is configured to be movable up and down in the first hoistway 2 and the second hoistway 3. The support frame 51 is disposed behind the laterally moving car 50 and is configured not to interfere with the first lifting car 10 and the second lifting car 30. Furthermore, the support frame 51 is formed in a rectangular frame shape when viewed from the front.

  The lateral movement cage 50 is configured to be movable in the lateral direction between the first hoistway 2 and the second hoistway 3 with respect to the support frame 51 by the lateral movement mechanism 52. As shown in FIG. 4, the lateral movement mechanism 52 includes a lateral movement ball screw shaft 53 provided on the support frame 51, a lateral movement ball screw nut 54 that is screwed to the lateral movement ball screw shaft 53, and a lateral movement mechanism. A lateral movement motor 55 that rotates the movement ball screw shaft 53. An arm 56 is connected to the ball screw nut 54 for lateral movement, and a lateral movement car 50 is connected to the arm 56. As a result, when the lateral movement motor 55 is driven, the lateral movement ball screw shaft 53 rotates, and the lateral movement basket 50 moves relative to the support frame 51 via the lateral movement ball screw nut 54 and the arm 56. It can move in the horizontal direction. As shown in FIG. 1, in the present embodiment, a lateral movement mechanism guide rail 57 is provided below the support frame 51 to guide lateral movement of the lateral movement car 50.

  A trajectory region 58 is defined by the trajectory of the lateral movement of the lateral movement car 50. In the present embodiment, as shown in FIG. 5, the planar shape of the trajectory region 58 is a rectangular shape.

  As shown in FIG. 4, a third counterweight (first counterbalance cage weight) 62 is connected to the support frame 51 via a third rope (first counterbalance cage rope) 61. Yes. The third rope 61 is wound up by a third hoisting machine (horizontal moving car elevating drive unit) 63. In this way, the third hoisting machine 63 moves up and down the support frame 51 via the third rope 61. In the present embodiment, the third hoisting machine 63 is disposed at the upper part of the first hoistway 2, and the third hoisting machine 63 is wound around the third rope 61. A drive sheave 64 (drive sheave) is provided.

  The support frame 51 is provided with a pair of third car sheaves (first laterally moving car sheaves) 66 around which a third rope 61 is wound. A third weight sheave 67 around which a third rope 61 is wound is provided on the third counterweight 62.

  Note that both ends of the third rope 61 are fixed to the hoistway wall (for example, the ceiling of the hoistway) by the third hitch portion 68 and wound around each sheave. That is, the third rope 61 extends downward from one third hitch portion 68 and is wound around the third weight sheave 67, and extends upward from the third weight sheave 67 and wound around the third drive sheave 64. Yes. The third rope 61 extends downward from the third drive sheave 64 and is wound around the pair of third car sheaves 66. The third rope 61 extends upward from the third car sheave 66 and is fixed to the other third hitch portion 68. ing. The third rope 61 passes outside the locus area 58 of the laterally moving car 50 in plan view.

  As shown in FIG. 5, a third car guide rail 80 is provided in the first hoistway 2, and a fourth car guide rail 90 is provided in the second hoistway 3. The laterally moving car 50 is provided with a third guide roller 234 (see FIG. 12 and the like), and the third guide roller 234 is guided by the third car guide rail 80. Further, the laterally moving car 50 is provided with a fourth guide roller 235 (see FIG. 12 and the like), and the fourth guide roller 235 is guided by the fourth car guide rail 90. Thus, the third rope 61 is wound up by the third hoisting machine 63, so that the support frame 51 is guided by the third car guide rail 80 and the fourth car guide rail 90 so as to move up and down. It has become. The third car guide rail 80 is disposed on the side opposite to the second hoistway 3 side (left side in FIG. 5) from the laterally moving car 50 in a plan view, and the fourth car guide rail 90. Is arranged on the side opposite to the first hoistway 2 side (the right side in FIG. 5) from the laterally moving car 50 in plan view.

  As shown in FIG. 5, a pair of third weight guide rails 81 is provided in the first hoistway 2. When the third rope 61 is wound up by the third hoisting machine 63, the third counterweight 62 is guided by the third weight guide rail 81 and moves up and down. The third counterweight 62 and the pair of third weight guide rails 81 are disposed on the side opposite to the second hoistway 3 side (left side in FIG. 5) from the support frame 51 in plan view. Yes.

  The support frame 51 is connected to a fourth counterweight (second laterally movable car counterweight) 72 via a fourth rope (second laterally movable cage rope) 71. On the upper part of the second hoistway 3, a pair of laterally moving car deflecting sheaves 75 are provided. Further, the support frame 51 is provided with a fourth car sheave (second sheave for moving basket) 76 around which the fourth rope 71 is wound. The fourth counterweight 72 is provided with a fourth weight sheave 77 around which the fourth rope 71 is wound.

  Both ends of the fourth rope 71 are fixed to a hoistway wall (for example, a ceiling of the hoistway) by a fourth hitch portion 78 and are wound around each sheave. That is, the fourth rope 71 extends downward from one of the fourth hitch portions 78 and is wound around the fourth weight sheave 77, and extends upward from the fourth weight sheave 77 to the pair of laterally moving basket sled sheaves 75. Wrapped, extended downward from the pair of laterally moving car deflecting sheaves 75 and wound around the fourth car sheave 76, and extended upward from the fourth car sheave 76 and fixed to the other fourth hitch portion 78. . The fourth rope 71 passes outside the locus area 58 of the laterally moving car 50 in plan view.

  As shown in FIG. 5, a pair of fourth weight guide rails 91 are provided in the second hoistway 3. The third rope 61 is wound up by the third hoisting machine 63, and the fourth counterweight 72 is guided by the fourth weight guide rail 91 to move up and down. The fourth counterweight 72 and the pair of fourth weight guide rails 91 are disposed on the opposite side (right side in FIG. 5) from the support frame 51 to the first hoistway 2 side in plan view. Yes.

  The pair of third car sheaves 66 is disposed behind the laterally moving car 50. That is, the support frame 51 disposed behind the laterally moving car 50 has a third sheave beam 82 provided above the laterally moving car 50 and extending in the lateral direction, and both ends of the third sheave beam 82. A pair of third car sheaves 66 are rotatably attached to the portions.

  The fourth car sheave 76 is disposed at the front of the laterally moving car 50. That is, a fourth sheave beam 92 extending forward from the third sheave beam 82 is connected to the third sheave beam 82, and a fourth car sheave 76 is rotatable at the front end portion of the fourth sheave beam 92. It is attached.

  The fourth car sheave 76 is opposite to the third car sheave 66 side with respect to a reference line passing through the gravity center position G3 of the laterally moving car 50 parallel to the straight line connecting the pair of third car sheaves 66. Is arranged. That is, the center of gravity position G3 of the laterally moving car 50 is arranged between the straight line connecting the pair of third car sheaves 66 (S shown in FIG. 5) and the fourth car sheave 76 in plan view. At this time, as shown in FIG. 6, the distance L3 between the straight line connecting the pair of third car sheaves 66 and the center of gravity position G3 of the laterally moving car 50 is the center of gravity position G3 of the fourth car sheave 76 and the laterally moving car 50. Is preferably equal to the distance L4. In this case, the third counterweight 62 and the fourth counterweight 72 can be made equal. Here, “equal” is not limited to a strict meaning, and the moment around the gravity center position due to the tension of the third rope 61 and the moment around the gravity center position due to the tension of the fourth rope 71 are substantially equal. It is used as a meaning including manufacturing errors that can be considered. It is preferable that the total mass of the third counterweight 62 and the fourth counterweight 72 is set to be a mass commensurate with the mass of the laterally moving cage 50 (including the mass of the support frame 51 and the like). It is.

  Next, the operation of the present embodiment having such a configuration will be described.

  In the elevator apparatus 1 according to the present embodiment, the first elevator car 10 is moved up and down in the first hoistway 2 by the first hoisting machine 13, and the second elevator car 30 is moved up and down by the second hoisting machine. Go up and down in the road 3. The horizontally moving car 50 is moved up and down in the first hoistway 2 or the second hoistway 3 by the third hoisting machine 63.

  Here, for example, the horizontally moving car 50 and the first lifting car 10 moving up and down in the first hoistway 2 approach each other, and the horizontally moving car 50 and the first lifting car 10 are directed to the destination floor. When it becomes difficult, the lateral movement motor 55 of the lateral movement mechanism 52 is driven. As a result, the lateral movement ball screw shaft 53 rotates, and as shown in FIGS. 7 and 8, the lateral movement ball screw nut 54 screwed into the lateral movement ball screw shaft 53 moves in the lateral direction. . With the lateral movement of the lateral movement ball screw nut 54, the lateral movement car 50 connected to the lateral movement ball screw nut 54 via the arm 56 moves in the lateral direction.

  Here, the first rope 11 and the second rope 31 pass outside the locus area 58 defined by the locus of the lateral movement of the lateral movement car 50. This prevents the first rope 11 and the second rope 31 from contacting the horizontally moving car 50 when the horizontally moving car 50 moves between the first hoistway 2 and the second hoistway 3. Thus, the horizontally moving car 50 can smoothly move horizontally.

  In this way, the laterally moving car 50 can move laterally from the first hoistway 2 to the second hoistway 3, and the first hoisting car 10 and the laterally moving car 50 can be directed to the destination floor. It becomes possible. Similarly, the horizontally moving car 50 can smoothly move from the second hoistway 3 toward the first hoistway 2.

By the way, while the elevator apparatus 1 is operated, the first elevator car 10 receives the tension T <b> 1 from the first rope 11. Since this tension T1 is balanced with the gravity due to the mass W1 of the first elevator car 10,
2 × T1 = W1 × g
The following equation holds. Here, g represents gravitational acceleration.

On the other hand, when the moment M1 generated around the center of gravity G1 of the first elevator car 10 due to the tension of the first rope 11 is L1 and L2 shown in FIG.
M1 = T1 × (L1-L2)
It is expressed.

  However, in the present embodiment, the center-of-gravity position G1 of the first elevator car 10 is disposed between the pair of first car sheaves 16 in plan view. For this reason, the moment M1 can be reduced. In particular, when the pair of first car sheaves 16 are arranged point-symmetrically in a plan view with respect to the center of gravity position G1 of the first elevator car 10, the moment M1 can be further reduced. It can suppress that the moment by the tension | tensile_strength of the 1st rope 11 is loaded to the 1st raising / lowering cage | basket | car 10. FIG. Similarly, the moment M2 due to the tension of the second rope 31 applied to the second elevator car 30 can also be reduced.

Further, while the elevator apparatus 1 is in operation, as shown in FIG. 6, the laterally moving car 50 receives a tension T <b> 3 from the third rope 61 and a tension T <b> 4 from the fourth rope 71. However, in the present embodiment, the fourth car sheave 76 has a third car sheave 66 with respect to a reference line passing through the center of gravity position G3 of the laterally moving car 50 parallel to the straight line connecting the pair of third car sheaves 66. It is arranged on the opposite side of the side. From this, the moment M3 in the depth direction (front-rear direction) generated around the gravity center position G3 of the laterally moving cage 50 due to the tension of the third rope 61 and the tension of the fourth rope 71 can be reduced. Here, as moment M3, when using L3 and L4 shown in FIG.
M3 = 2 * T3 * L3-2 * T4 * L4
It is expressed.

That is, the tension T3 of the third rope 61 and the tension T4 of the fourth rope 71 are set such that the mass of the third counterweight 62 is W3 and the mass of the fourth counterweight 72 is W4.
T3: T4 = W3: W4
It can be expressed. Also, the masses W3 and W4 are
W3: W4 = L4: L3
To set
T3: T4 = L4: L3
And this
T3 × L3 = T4 × L4
It becomes. Accordingly, the moment M3 can be further reduced, and the lateral movement car 50 can be suppressed from being loaded with the moment due to the tension of the third rope 61 and the tension of the fourth rope 71.

  As described above, according to the present embodiment, the center of gravity G1 of the first elevator car 10 is arranged between the pair of first car sheaves 16 in plan view. As a result, the moment M1 around the center of gravity G1 loaded on the first elevator car 10 by the tension of the first rope 11 can be reduced, and the first elevator car 10 can be prevented from tilting downward. In this case, it is possible to prevent an increase in the force applied to the first guide roller 212 (see FIG. 12 and the like) guided by the first car guide rail 20. Accordingly, the first guide roller 212 can be prevented from being enlarged, the strength and rigidity required for the first guide roller 212 can be reduced, and the cost of the first guide roller 212 can be reduced. Further, since it is possible to prevent an increase in the force applied to the first guide roller 212, it is possible to prevent the first car guide rail 20 and the first guide roller 212 from being deformed, and to improve the riding comfort of the laterally moving car 50. Can be improved. In particular, when the pair of first car sheaves 16 are arranged point-symmetrically in a plan view with respect to the gravity center position G1 of the first elevator car 10, the first elevator car 10 is further prevented from tilting downward. This can further prevent the force applied to the first guide roller 212 from increasing.

  Further, according to the present embodiment, the center-of-gravity position G2 of the second elevator car 30 is disposed between the pair of second car sheaves 36 in plan view. As a result, the moment M2 around the gravity center position G2 loaded on the second elevator car 30 due to the tension of the second rope 31 can be reduced, and the second elevator car 30 can be prevented from tilting downward. In this case, it is possible to prevent the force applied to the second guide roller 222 (see FIG. 12 and the like) guided by the second car guide rail 40 from increasing. Accordingly, the second guide roller 222 can be prevented from being enlarged, the strength and rigidity required for the second guide roller 222 can be reduced, and the cost of the second guide roller 222 can be reduced. Further, since it is possible to prevent an increase in the force applied to the second guide roller 222, it is possible to prevent the second car guide rail 40 and the second guide roller 222 from being deformed and to improve the riding comfort of the laterally moving car 50. Can be improved. In particular, when the pair of second car sheaves 36 are arranged point-symmetrically in a plan view with respect to the center of gravity position G2 of the second elevator car 30, the second elevator car 30 is further prevented from tilting downward. This can further prevent the force applied to the second guide roller 222 from increasing.

  Further, according to the present embodiment, the gravity center position G3 of the laterally moving car 50 is arranged between the straight line connecting the pair of third car sheaves 66 and the fourth car sheave 76 in plan view. As a result, the moment M3 around the gravity center position G3 loaded on the laterally moving car 50 can be reduced by the tension of the third rope 61 and the tension of the fourth rope 71. For this reason, it is possible to prevent the horizontally moving car 50 from being inclined downward without being related to the position in the lateral direction. In this case, the force applied to the third guide roller 234 (see FIG. 12 and the like) guided by the third car guide rail 80 increases, and the fourth guide guided by the fourth car guide rail 90. An increase in the force applied to the guide roller 235 can be prevented. This prevents the third guide roller 234 and the fourth guide roller 235 from becoming large, reduces the strength and rigidity required for the third guide roller 234 and the fourth guide roller 235, and allows the third guide roller The cost of the roller 234 and the fourth guide roller 235 can be reduced. Further, since it is possible to prevent an increase in the force applied to the third guide roller 234 and the fourth guide roller 235, the third guide roller 234 and the third car guide rail 80, and the fourth guide roller 235 and the fourth car. The guide rail 90 can be prevented from being deformed, and the riding comfort of the laterally moving car 50 can be improved. In particular, when the distance L3 between the center of gravity position G3 of the horizontally moving car 50 and the straight line connecting the pair of third car sheaves 66 is equal to the distance L4 between the center of gravity position G3 of the horizontally moving car 50 and the fourth car sheave 76, It is possible to further prevent the moving cage 50 from being inclined downward, and to further prevent the force applied to the third guide roller 234 and the fourth guide roller 235 from increasing.

  Further, according to the present embodiment, the first rope 11 and the second rope 31 are arranged so as to pass outside the locus area 58 of the laterally moving car 50. As a result, when the laterally moving car 50 moves laterally between the first hoistway 2 and the second hoistway 3, the first rope 11 and the second rope 31 come into contact with the laterally moving car 50. The lateral movement car 50 can be smoothly moved in the lateral direction.

  Further, according to the present embodiment, the force applied to the guide roller of each car while the laterally moving car 50 is configured to be movable in the lateral direction between the first hoistway 2 and the second hoistway 3. Can be reduced. For this reason, the elevator apparatus 1 which can increase a passenger transport capability can be manufactured at low cost, and the riding comfort can be improved. Further, according to the present embodiment, the counterweight connected to the laterally moving car 50 is divided into the third counterweight 62 and the fourth counterweight 72, and these third counterweight 62 and The fourth counterweight 72 can be disposed on both sides of the support frame 51. Thereby, each apparatus of the elevator apparatus 1 can be arrange | positioned efficiently.

  In the present embodiment described above, the example in which the third hoisting machine 63 winds up the third rope 61 has been described. However, the present invention is not limited to this, and the third hoisting machine 63 may be configured to wind up the fourth rope 71.

  In the above-described embodiment, the example in which the lateral movement mechanism 52 is configured by a mechanism using a rotating ball screw has been described. However, the present invention is not limited to this, and the lateral movement mechanism 52 can also be configured by a mechanism using a linear motor.

(Second Embodiment)
Next, an elevator apparatus according to a second embodiment of the present invention will be described with reference to FIG.

  In the second embodiment shown in FIG. 9, an additional sheave is provided on the side of the third hoist, and the third rope is wound a plurality of times between the third drive sheave and the additional sheave. The other differences are mainly the same as those of the first embodiment shown in FIGS. 1 to 8. In FIG. 9, the same parts as those of the first embodiment shown in FIGS. 1 to 8 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 9, an additional sheave (warp sheave) 100 is provided on the side of the third drive sheave 64. The third rope 61 is alternately wound around the third drive sheave 64 and the additional sheave 100 a plurality of times. That is, although not clearly shown in FIG. 9, the third rope 61 extends upward from the third weight sheave 67 and is wound around the additional sheave 100, and extends laterally from the additional sheave 100 to the third drive. It is wound around the sheave 64. The third rope 61 extends from the third drive sheave 64 in the lateral direction and is wound around the additional sheave 100 again, and extends from the additional sheave 100 in the lateral direction and is wound around the third drive sheave 64 again. In this way, the third rope 61 is alternately wound twice around the additional sheave 100 and the third drive sheave 64 (double wrap). The third rope 61 is wound twice in the additional sheave 100 and the third drive sheave 64 at different positions in the sheave width direction. The number of times the third rope 61 is wound around the additional sheave 100 and the third drive sheave 64 is not limited to this. The double-wrapped third rope 61 extends downward from the third drive sheave 64 and is wound around the third car sheave 66.

  As described above, according to the present embodiment, the third rope 61 is alternately wound around the third drive sheave 64 and the additional sheave 100 a plurality of times. As a result, the frictional force between the third rope 61 and the third drive sheave 64 can be increased, and the transmission loss of the driving force of the third hoisting machine 63 to the third rope 61 can be reduced. it can. In particular, according to the present embodiment, the total mass of the third counterweight 62 connected to the third rope 61 and the fourth counterweight 72 connected to the fourth rope 71 is equal to the lateral movement car 50. In this case, the tension of the third rope 61 tends to be small. However, according to the present embodiment, the frictional force between the third rope 61 and the third drive sheave 64 can be increased. Therefore, even when the tension of the third rope 61 decreases, the third rope 61 Transmission loss of the driving force of the hoisting machine 63 to the third rope 61 can be reduced.

  Further, according to the present embodiment, as described above, the frictional force between the third rope 61 and the third drive sheave 64 can be increased, so that the mass of the third counterweight 62, The degree of freedom in setting the ratio with the mass of the four counterweights 72 can be improved. This makes it unnecessary to limit the mass of the third counterweight 62 from the viewpoint of ensuring the frictional force between the third rope 61 and the third hoisting machine 63. For this reason, even when the L3 dimension and the L4 dimension shown in FIG. 6 are shifted, by adjusting the ratio of the mass of the third counterweight 62 and the mass of the fourth counterweight 72, The moment M3 that can be applied to the laterally moving car 50 can be easily reduced.

  In the above-described embodiment, the third hoisting machine 63 winds up the third rope 61, and the third rope 61 is alternately wound around the third drive sheave 64 and the additional sheave 100 a plurality of times. Explained the example. However, the present invention is not limited to this, and the third hoisting machine 63 winds up the fourth rope 71, and the fourth rope 71 is alternately wound around the third drive sheave 64 and the additional sheave 100 a plurality of times. You may do it.

(Third embodiment)
Next, an elevator apparatus according to a third embodiment of the present invention will be described with reference to FIG.

  In the third embodiment shown in FIG. 10, a longitudinal movement mechanism for moving the lateral movement basket in the front-rear direction with respect to the support frame is provided, the front-rear movement mechanism includes a lateral guide rail extending in the lateral direction, The main difference is that it has a guided member guided by the direction guide rail, and the other configuration is substantially the same as that of the first embodiment shown in FIGS. In FIG. 10, the same parts as those of the first embodiment shown in FIGS. 1 to 8 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 10A, the elevator apparatus 1 according to the present embodiment further includes a front / rear moving mechanism 110 that moves the laterally moving car 50 in the front / rear direction with respect to the support frame 51.

  The forward / backward moving mechanism 110 has a pair of lateral guide rails 111 provided on the support frame 51 and a moving mechanism guide roller (guided member) 112 provided rotatably on the laterally moving car 50. . Of these, the lateral guide rail 111 is fixed to the fourth sheave beam 92, and guides the laterally moving car 50 laterally between the first hoistway 2 and the second hoistway 3. Yes.

  The lateral guide rail 111 is provided at the lateral guide rail main body 113 extending in the lateral direction and both ends of the lateral guide rail main body 113 and guides the moving mechanism guide roller 112 in the front-rear direction of the lateral movement cage 50. And a guide part 114. The lateral guide rail body 113 is formed in a straight line in the lateral direction, and the front-rear direction guide portion 114 is formed so as to be smoothly bent from the lateral guide rail body 113 toward the front of the lateral movement car 50. .

  The moving mechanism guide roller 112 is interposed between the lateral guide rails 111 and is guided by the lateral guide rails 111. The movement mechanism guide roller 112 is rotatably attached to a first upper beam 117 provided above the lateral movement car 50.

  The front / rear moving mechanism 110 includes a front / rear guide rail 115 extending in the front / rear direction provided on the support frame 51 and a slider slidably guided on the front / rear guide rail 115 provided on the laterally moving car 50. 116. Among these, the front-rear direction guide rail 115 is fixed to the arm 56. That is, the front-rear direction guide rail 115 and the slider 116 are interposed between the arm 56 and the lateral movement car 50, and the lateral movement car 50 is configured to be slidable in the front-rear direction with respect to the arm 56. A second upper beam 118 extending rearward from the first upper beam 117 is connected to the first upper beam 117, and a slider 116 is attached to the second upper beam 118.

  Here, the case where the horizontally moving car 50 moves from, for example, the first hoistway 2 to the second hoistway 3 will be described. First, while the laterally moving car 50 is located in the first hoistway 2, as shown in FIG. 10A, the moving mechanism guide roller 112 of the longitudinal moving mechanism 110 is moved in the longitudinal direction of the lateral guide rail 111. Located in the guide 114.

  When the lateral movement cage 50 starts lateral movement from the first hoistway 2 toward the second hoistway 3 by the lateral movement mechanism 52, the movement mechanism guide roller 112 of the front-rear movement mechanism 110 is moved to the lateral guide rail 111. Is guided along the front-rear direction guide portion 114. As a result, the laterally moving car 50 moves rearward along the shape of the front-rear direction guiding portion 114 while moving in the lateral direction. At this time, the slider 116 provided in the laterally moving car 50 is guided by the longitudinal guide rail 115 provided in the arm 56 and slides backward.

  When the moving mechanism guide roller 112 of the back-and-forth moving mechanism 110 reaches the horizontal guide rail main body 113 of the horizontal guide rail 111, as shown in FIG. 10 (b), the horizontal moving cage 50 is moved in the horizontal direction. It moves along the shape of the rail 111 while being guided laterally. During this time, since the lateral guide rail 111 is formed in a straight line in the lateral direction, the laterally moving car 50 moves in the lateral direction while maintaining the position in the front-rear direction.

  When the moving mechanism guide roller 112 of the front / rear moving mechanism 110 reaches the front / rear direction guide 114 on the side of the second hoistway 3 of the lateral guide rail 111, the lateral movement car 50 is guided along the front / rear direction guide 114. The Accordingly, the laterally moving car 50 moves forward along the shape of the front-rear direction guide 114 while moving in the lateral direction. At this time, the slider 116 provided on the laterally moving car 50 is guided by the front-rear direction guide rail 115 provided on the arm 56 and slides forward. In this way, the horizontally moving car 50 can be moved to a predetermined position in plan view in the second hoistway 3. As a result, the laterally moving car 50 can get on and off passengers when landing on a desired floor.

  Similarly, the horizontally moving car 50 can be moved in the lateral direction from the second hoistway 3 to the first hoistway 2. The trajectory region 58 of the laterally moving car 50 according to the present embodiment has a shape corresponding to the shape of the lateral guide rail 111 as shown in FIG. This makes it possible to dispose the first rope 11 and the second rope 31 in the concave portion 58a formed forward.

  As described above, according to the present embodiment, when the laterally moving car 50 moves laterally between the first hoistway 2 and the second hoistway 3, it is moved laterally by the forward / backward moving mechanism 110. While moving in the front-rear direction. Accordingly, when the laterally moving car 50 is moved in the lateral direction, the front portion of the first rope 11 extending upward from the first car sheave 16 in front and the second car in front of the second rope 31. It is possible to move away from the front portion extending upward from the sheave 36, and it is possible to further prevent the lateral movement cage 50 from contacting the front portion of the first rope 11 or the front portion of the second rope 31. For this reason, the horizontally moving car 50 can be moved in the lateral direction more smoothly.

  In addition, according to the present embodiment, as described above, the laterally moving car 50 can be moved away from the front portion of the first rope 11 when moving in the lateral direction. The degree of freedom of the arrangement of the first car sheave 16 in front of them can be increased. As a result, the moment M1 that can be applied to the first elevator car 10 can be further reduced. Similarly, the degree of freedom of the arrangement of the second car sheave 36 in front of the pair of second car sheaves 36 can be increased, and the above-described moment M2 that can be applied to the second elevator car 30 is further reduced. can do.

  Further, according to the present embodiment, the slider 116 provided in the laterally moving car 50 is slidably guided by the front-rear direction guide rail 115 provided in the support frame 51. Accordingly, the laterally moving car 50 can be smoothly moved in the front-rear direction with respect to the arm 56.

(Fourth embodiment)
Next, an elevator apparatus according to a fourth embodiment of the present invention will be described with reference to FIG.

  In the fourth embodiment shown in FIG. 11, a longitudinal movement mechanism for moving the lateral movement basket in the front-rear direction with respect to the support frame is provided. The main difference is that it has a ball screw nut for back and forth movement that is screwed onto the ball screw shaft for back and forth movement, and the other configuration is substantially the same as that of the first embodiment shown in FIGS. Are the same. In FIG. 11, the same parts as those of the first embodiment shown in FIGS. 1 to 8 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 11, the elevator apparatus 1 according to the present embodiment further includes a front-rear moving mechanism 120 that moves the laterally-moving car 50 in the front-rear direction with respect to the support frame 51.

  The front-rear movement mechanism 120 includes a front-rear movement ball screw shaft 121 provided in the support frame 51 and a front-rear movement motor (rotation drive unit) 122 that rotates the front-rear movement ball screw shaft 121. Have. The forward / backward moving ball screw shaft 121 and the forward / backward moving motor 122 are attached to the arm 56. Further, the laterally moving cage 50 is provided with a longitudinally moving ball screw nut 123 that is screwed to the longitudinally moving ball screw shaft 121. By configuring the forward / backward moving mechanism 120 in this manner, the lateral movement mechanism 52 and the forward / backward movement mechanism 120 can move the lateral movement car 50 independently of each other.

  A second arm 124 is connected to the ball screw nut 123 for forward and backward movement, and a fourth upper beam 128 described later is connected to the second arm 124. In this way, the laterally moving car 50 moves together with the ball screw nut 123 for moving back and forth.

  The front-rear moving mechanism 120 includes a front-rear guide rail 125 extending in the front-rear direction provided on the support frame 51 and a slider slidably guided on the front-rear guide rail 125 provided on the laterally moving car 50. 126. Among these, the front-rear direction guide rail 125 is fixed to the arm 56. A first upper beam 127 is provided above the laterally moving car 50, and a second upper beam 128 extending backward from the first upper beam 127 is connected to the first upper beam 127. A slider 126 is attached to the fourth upper beam.

  Here, the case where the horizontally moving car 50 moves from, for example, the first hoistway 2 to the second hoistway 3 will be described. First, the laterally moving car 50 is moved backward by the forward / backward moving mechanism 120. In this case, the forward / backward movement motor 122 is driven, the forward / backward movement ball screw shaft 121 rotates, and the forward / backward movement ball screw nut 123 that engages with the rotating forward / backward movement ball screw shaft 121 moves backward. As a result, the laterally moving car 50 connected to the forward / backward moving ball screw nut 123 via the second arm 124 moves rearward. At this time, the slider 126 provided in the laterally moving car 50 is guided by the front-rear direction guide rail 125 provided in the second arm 124 and slides backward.

  After the lateral movement car 50 has moved rearward, the lateral movement car 50 is moved laterally from the first hoistway 2 toward the second hoistway 3 by the lateral movement mechanism 52.

  When the horizontally moving car 50 reaches the second hoistway 3, the horizontally moving car 50 is moved forward by the forward / backward moving mechanism 120. In this case, the longitudinal movement motor 122 is driven, the longitudinal movement ball screw shaft 121 rotates, and the lateral movement cage 50 moves forward via the longitudinal movement ball screw nut 123 and the second arm 124. In this way, the horizontally moving car 50 can be moved to a predetermined position in plan view in the second hoistway 3. As a result, the laterally moving car 50 can get on and off passengers when landing on a desired floor.

  Similarly, the horizontally moving car 50 can be moved in the lateral direction from the second hoistway 3 to the first hoistway 2. As shown in FIG. 11, the trajectory region 58 of the laterally moving car 50 according to the present embodiment enables the first rope 11 and the second rope 31 to be disposed in the concave portion 58a formed in the front. ing.

  As described above, according to the present embodiment, the laterally moving car 50 can move laterally between the first hoistway 2 and the second hoistway 3 after being moved rearward by the forward / backward moving mechanism 120. it can. Accordingly, when the laterally moving car 50 is moved in the lateral direction, the front portion of the first rope 11 extending upward from the first car sheave 16 in front and the second car in front of the second rope 31. It is possible to further move away from the front portion extending upward from the sheave 36, and further prevent the lateral movement cage 50 from contacting the front portion of the first rope 11 or the front portion of the second rope 31. For this reason, the horizontally moving car 50 can be moved in the lateral direction more smoothly.

  In addition, according to the present embodiment, as described above, the laterally moving car 50 can be moved away from the front portion of the first rope 11 when moving in the lateral direction. Of these, the degree of freedom of the arrangement of the first car sheave 16 in the front can be increased. As a result, the moment M1 that can be applied to the first elevator car 10 can be further reduced. Similarly, the degree of freedom of the arrangement of the second car sheave 36 ahead of the pair of second car sheaves 36 can be increased, and the above-described moment M2 that can be applied to the second elevator car 30 is further reduced. be able to. In particular, according to the present embodiment, the laterally moving car 50 can move rearward before moving in the lateral direction, so that the laterally moving car 50 has the front portion of the first rope 11 and the second rope. 31 can be further prevented from coming into contact with the front portion, and the degree of freedom in arrangement of the first car sheave 16 and the second car sheave 36 can be further increased.

  Further, according to the present embodiment, the slider 126 provided in the laterally moving car 50 is slidably guided to the front-rear direction guide rail 125 provided in the support frame 51. Accordingly, the laterally moving car 50 can be smoothly moved in the front-rear direction with respect to the arm 56.

  In the present embodiment described above, after the lateral movement car 50 has moved rearward, the lateral movement car 50 is moved laterally from the first hoistway 2 to the second hoistway 3 by the lateral movement mechanism 52. An example of moving to has been described. However, the present invention is not limited to this, and the horizontally moving car 50 is moved along the locus similar to the horizontally moving car 50 shown in FIG. Is also possible.

  Moreover, in this Embodiment mentioned above, the back-and-forth movement mechanism 120 demonstrated the example comprised by the mechanism using the rotating ball screw. However, the present invention is not limited to this, and the back-and-forth movement mechanism 120 can also be configured by a mechanism using a linear motor.

  Although the embodiments of the present invention have been described in detail above, the elevator apparatus according to the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. It is.

DESCRIPTION OF SYMBOLS 1 Elevator apparatus 2 1st hoistway 3 2nd hoistway 10 1st hoisting car 11 1st rope 12 1st counterweight 13 1st hoisting machine 16 1st car sheave 30 2nd hoisting car 50 Lateral movement car 51 Support Frame 52 Lateral moving mechanism 58 Trajectory area 61 Third rope 62 Third counterweight 63 Third hoisting machine 66 Third car sheave 71 Fourth rope 72 Fourth counterweight 76 Fourth car sheave 100 Additional sheave 110 Back and forth movement Mechanism 111 Lateral guide rail 112 Movement mechanism guide roller 113 Lateral guide rail main body 114 Front / rear direction guide portion 115 Front / rear direction guide rail 116 Slider 120 Front / rear movement mechanism 121 Ball screw shaft for front / rear movement 122 Motor for front / rear movement 123 Ball for front / rear movement Screw nut 125 Front / rear guide rail 126 Slider

Claims (10)

A first elevator that can be raised and lowered in the first hoistway;
A first lifting car counterweight connected to the first lifting car via a first lifting car rope;
A first elevator car lifting / lowering drive unit for raising and lowering the first elevator car via the first elevator car rope;
A second elevator car that can freely move up and down in a second hoistway formed in a continuous space in parallel with the first hoistway;
A lateral movement cage that is movable up and down in the first hoistway and in the second hoistway, and is movable in a lateral direction between the first hoistway and the second hoistway,
A lateral movement mechanism for moving the lateral movement basket in a lateral direction;
A support frame that is formed from the first hoistway to the second hoistway and is movable up and down in the first hoistway and in the second hoistway, and the laterally moving cage is connected to the first hoistway and the first hoistway. A support frame that is movably supported laterally between the second hoistway and the second hoistway;
A counterweight for a first lateral movement car connected to the support frame via a first lateral movement car rope;
A laterally moving car lifting / lowering drive unit that lifts and lowers the support frame via the first laterally moving car rope;
A counterweight for a second lateral movement car coupled to the support frame via a second lateral movement car rope ;
The first elevator car rope passes outside the trajectory area defined by the trajectory of the lateral movement of the lateral movement car;
A pair of first elevator car sheaves around which the first elevator car rope is wound are provided on the first elevator car,
Between the pair of first elevator car sheaves, the center of gravity of the first elevator car is arranged in plan view ,
A pair of first lateral movement car sheaves around which the first lateral movement car rope is wound are provided on the support frame, and a second lateral movement car around which the second lateral movement car rope is wound. For sheaves,
An elevator apparatus characterized in that a center of gravity position of the lateral movement car is arranged in a plan view between a straight line connecting the pair of first lateral movement car sheaves and the second lateral movement car sheave. . One of the first elevator car sheaves in a pair of the first elevator car sheaves is disposed on the second hoistway side and in front of the center of gravity of the first elevator car in a plan view,
Of the pair of first elevator car sheaves, the other one of the first elevator car sheaves is disposed on the side opposite to the second hoistway side and behind the center of gravity of the first elevator car in plan view. The elevator apparatus according to claim 1, wherein the elevator apparatus is provided.   3. The elevator apparatus according to claim 1, wherein the pair of first elevator car sheaves are arranged point-symmetrically with respect to a center of gravity of the first elevator car in a plan view. A plane distance between a straight line connecting a pair of the first laterally moving car sheaves and the gravity center position of the laterally moving car, and a planar distance between the second laterally moving car sheave and the center of gravity of the laterally moving car, Elevator device according to any one of claims 1 to 3 , characterized in that they are equal. The elevator apparatus according to any one of claims 1 to 4, further comprising a back-and-forth moving mechanism for moving the laterally moving car in the front-rear direction with respect to the support frame. The back-and-forth movement mechanism is a pair of lateral guide rails provided on the support frame, and a pair of lateral guides for laterally guiding the lateral movement cage between the first hoistway and the second hoistway. A lateral guide rail, and a guided member rotatably provided on the laterally moving car, the guided member interposed between the lateral guide rails and guided by the lateral guide rail. Have
The lateral guide rail includes a lateral guide rail main body extending in the lateral direction, and a front / rear direction guide provided at both ends of the lateral guide rail main body for guiding the guided member in the front / rear direction of the lateral movement cage. The elevator apparatus according to claim 5 , further comprising: a unit. The front / rear moving mechanism is provided on the support frame, provided in the front / rear movement ball screw shaft extending in the front / rear direction, a front / rear movement rotation drive unit for rotating the front / rear movement ball screw shaft, and the lateral movement cage. The elevator apparatus according to claim 5 , further comprising a forward / backward moving ball screw nut screwed onto the forward / backward moving ball screw shaft. The front / rear movement mechanism is a front / rear direction guide rail provided in the support frame and extending in the front / rear direction, and a slider provided in the lateral movement cage, and is slidably guided by the front / rear direction guide rail. elevator device according to any one of claims 5 to 7, characterized in that it further comprises a slider, a. A drive sheave around which the first lateral movement cage rope is wound is provided in the lateral movement cage elevation drive section,
An additional sheave is provided on the side of the drive sheave,
The elevator apparatus according to any one of claims 1 to 8 , wherein the first laterally moving car rope is alternately wound around the drive sheave and the additional sheave a plurality of times. A first elevator that can be raised and lowered in the first hoistway;
A second elevator car that can freely move up and down in a second hoistway formed in a continuous space in parallel with the first hoistway;
A support frame that is formed from the first hoistway to the second hoistway and is movable up and down in the first hoistway and in the second hoistway;
A lateral movement unit that is provided in the support frame so as to be movable in the lateral direction and is movable in the lateral direction between the first hoistway and the second hoistway.
A counterweight for a first lateral movement car connected to the support frame via a first lateral movement car rope;
A laterally moving car lifting / lowering drive unit that lifts and lowers the support frame via the first laterally moving car rope;
A counterweight for a second lateral movement car coupled to the support frame via a second lateral movement car rope;
A pair of first lateral movement car sheaves around which the first lateral movement car rope is wound are provided on the support frame, and a second lateral movement car around which the second lateral movement car rope is wound. For sheaves,
An elevator apparatus characterized in that a center of gravity position of the lateral movement car is arranged in a plan view between a straight line connecting the pair of first lateral movement car sheaves and the second lateral movement car sheave. .

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