WO2015056646A1 - Elevator device - Google Patents

Elevator device Download PDF

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Publication number
WO2015056646A1
WO2015056646A1 PCT/JP2014/077203 JP2014077203W WO2015056646A1 WO 2015056646 A1 WO2015056646 A1 WO 2015056646A1 JP 2014077203 W JP2014077203 W JP 2014077203W WO 2015056646 A1 WO2015056646 A1 WO 2015056646A1
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WO
WIPO (PCT)
Prior art keywords
wire
hoisting machine
counterweight
cage
hoisting
Prior art date
Application number
PCT/JP2014/077203
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French (fr)
Japanese (ja)
Inventor
文男 濱田
Original Assignee
文男 濱田
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Publication date
Application filed by 文男 濱田 filed Critical 文男 濱田
Publication of WO2015056646A1 publication Critical patent/WO2015056646A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065Roping
    • B66B11/008Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to a traction type elevator apparatus that includes a hoisting machine at one end of an elevator hoistway, and connects a cage carrying a person and a counterweight in a balanced state by a wire wound up by the hoisting machine.
  • a hoisting machine is fixedly arranged at one end (upper end or lower end) of the elevator hoistway, and the wire is wound up by the hoisting machine.
  • a counterweight and a cage are connected to each other, and the counterweight reduces the burden on the hoisting machine.
  • the hoisting load and the hoisting speed must be borne by the hoisting machine fixed and arranged at one end of the elevator hoistway, and the hoisting machine itself and the hoisting machine It has a structure that cannot save power effectively without improving the control of the upper machine.
  • the cage and the counterweight are in a balanced state like a simple fishing bottle. Basically, the cage and the counterweight are moved up and down at the same speed and at the same speed. It will be.
  • the present invention drastically improves the structure of a conventional traction type elevator device to effectively save power, and further increases and decreases the lifting and lowering distance of the counterweight without increasing the space in the elevator hoistway.
  • An elevator apparatus capable of limiting the speed is provided.
  • the elevator apparatus is a traction type elevator apparatus that reduces the burden on a hoisting machine that connects a cage and a counterweight with a wire in a balanced state and winds the wire, and is one end of an elevator hoistway.
  • a pair or a plurality of pairs of first hoisting machines, and at least a second hoisting machine disposed at least one of the upper and lower outer ends of the cage and moving up and down with the cage.
  • each second hoisting machine power saving by complementing each first hoisting machine while the self-propelled on said wire. That is, not only the hoisting load at the time of raising and lowering the cage but also the hoisting speed can be distributed to the first and second hoisting machines, and the power consumption of the motors of each hoisting machine can be reduced and power saving can be effectively achieved. To do. Further, the lifting and lowering speed of the counterweight is limited by the second hoisting machine, and the counterweight can be lifted and lowered safely while effectively utilizing the space in the elevator hoistway.
  • the wire has a structure composed of a first wire wound up by both the first and second hoisting machines and a second wire wound only by the second hoisting machine, and the first and second windings. Reduce the burden on each machine with a good balance.
  • the counterweight connected to the first wire and the counterweight connected to the second wire can be made independent, and each counterweight can be moved up and down separately, for example, vertically moved up and down in series.
  • the counterweight connected to the first wire and the counterweight connected to the second wire are made common, and a single counterweight is moved up and down safely by the cooperation of the first wire and the second wire. be able to.
  • the first hoisting machine fixedly disposed in the elevator hoistway is supplemented by the second hoisting machine that moves up and down together with the cage, so that the hoisting load and hoisting speed at the time of raising and lowering the cage are appropriate.
  • the motor output of each hoisting machine can be suppressed and it can contribute to power saving.
  • the second hoist that moves up and down with the cage and runs on the wire limits the lifting distance and speed of the counterweight, so that the safe lifting of the counterweight and the effective use of the space in the elevator hoistway can be achieved. be able to.
  • FIG. 1 shows the most basic embodiment of the elevator apparatus according to the present invention.
  • the elevator apparatus includes a pair of first hoisting machines 3 ⁇ / b> A and 3 ⁇ / b> B disposed to face one end (upper end) of the elevator hoistway 7, and the cage 1. It has a structure provided with a pair of second hoisting machines 4A and 4B which are arranged opposite to the upper end of the outside and move up and down with the cage 1.
  • the power source of the second hoisting machines 4A and 4B is not particularly limited, but a power source in the building or a battery can be used via a power cable hanging from the upper end of the elevator hoistway.
  • the upper end of the counterweight 2A is connected to one end of the wire 5A, and a midway portion of the wire 5A is wound around the drum of the first hoisting machine 3A and the drum of the second hoisting machine 4A.
  • the upper end of the counterweight 2B is connected to one end of the wire 5B, and the middle portion of the wire 5B is wound around the drum of the first hoisting machine 3B and wound around the drum of the second hoisting machine 4B.
  • These two wires 5A and 5B support the two counterweights 2A and 2B and the cage 1 in a balanced state.
  • the wire 5A and the upper end of the counterweight 2A are directly connected and the wire 5A and the upper end of the cage 1 are connected via the second hoisting machine 4A.
  • the wire 5B and the upper end of the counterweight 2B are directly connected, and the wire 5B and the upper end of the cage 1 are connected via the second hoisting machine 4B to form the balance structure.
  • the wire 5A has one end connected to the upper end of the counterweight 2A, and the other via the drum and pulley 6A of the first and second hoisting machines 3A and 4A. The end is connected to the lower end of the counterweight 2A to form an annular wire line as a whole.
  • the wire 5A forms an annular wire line because the portion 5Aa (hereinafter referred to as a main wire portion) from one end of the wire 5A to a portion wound around the drum of the second hoisting machine 4A.
  • a main wire portion the portion 5Aa
  • the portion 5Ab the portion 5Ab from the other end of the wire 5A to the portion wound around the drum of the second hoisting machine 4A. It is.
  • the wire 5B has one end connected to the upper end of the counterweight 2B, and the other end connected to the counterweight 2B via the drum and pulley 6B of the first and second hoisting machines 3B and 4B. Is connected to the lower end of the wire to form an annular wire line as a whole, and the wire weight of the portion 5Ba (main wire portion) from one end of the wire 5B to the portion wound around the drum of the second hoisting machine 4B On the other hand, the balance is maintained by the wire weight of the portion 5Bb (conventional wire portion) from the other end of the wire 5B to the portion wound around the drum of the second hoisting machine 4B.
  • the second hoisting machine 4A complements the first hoisting machine 3A when the first hoisting machine 3A winds the wire 5A.
  • the wire 5A is wound up in cooperation with.
  • the second hoisting machine 4B complements the first hoisting machine 3B and winds the wire 5B in cooperation with the first hoisting machine 3B.
  • the first hoisting machines 3A and 3B and the second hoisting of the present invention The output of each motor used in the machines 4A and 4B can be reduced.
  • the “counter weight” is set to the sum of “cage weight” and “half the total weight of the passengers when seating”.
  • the motor of the hoisting machine is operated or the brake is released according to the balance of “the sum of the cage weight and the total weight of the occupant (including when the occupant is zero)”.
  • the motor of the hoisting machine operates when “the sum of the cage weight and the total weight of the occupant”> “counterweight weight”. Conversely, when “the sum of the cage weight and the total weight of the occupant” ⁇ “counterweight weight”, the cage moves up by releasing the brake of the hoist.
  • the maximum output of the motor of the hoisting machine when the cage is lifted (hereinafter referred to as the maximum output when the cage is lifted) is an output when a passenger is seated in the cage.
  • the motor of the hoisting machine When the cage descends, that is, when the counterweight moves up, the motor of the hoisting machine operates when “counterweight weight”> “sum of cage weight and total body weight of passenger”. Conversely, when “counterweight weight” ⁇ “sum of cage weight and total passenger weight”, the cage descends if the brake of the hoisting machine is released.
  • the maximum output of the hoisting motor when the cage descends (hereinafter referred to as the maximum output when the cage descends) is an output when the number of passengers in the cage is zero.
  • the wire 5A is wound up in the direction F1 in the figure by the first hoisting machine 3A, and at the same time, the second hoisting machine 4A moves up together with the cage 1 by the wire 5A.
  • the second hoisting machine 4A winds up the wire 5A in the same direction as the hoisting by the first hoisting machine 3A while moving upward, and runs on the wire 5A.
  • the wire 5A is wound up in the direction F2 in the figure by the first hoisting machine 3A, and at the same time, the second hoisting machine 4A descends together with the cage 1 by the wire 5A.
  • the second hoisting machine 4A winds down the wire 5A in the same direction as the hoisting by the first hoisting machine 3A while descending, and runs on the wire 5A.
  • the cage 1 moves up and down by adding the length L1 of the wire 5A wound up by the first hoisting machine 3A to the length L2 wound up by the second hoisting machine 4A, while the counterweight 2A. Moves up and down the same length as the length L1 of the wire 5A wound up by the first hoisting machine 3A. For this reason, “the lifting / lowering distance of the cage 1”> “the lifting / lowering distance of the counterweight 2A”, and the lifting / lowering distance of the counterweight 2A can be limited by the second hoisting machine 4A.
  • the cage 1 moves up and down at a speed obtained by adding the speed at which the wire 5A is wound up by the second winding machine 4A to the speed at which the wire 5A is wound up by the first winding machine 3A, whereas the counterweight 2A
  • the upper machine 3A moves up and down at a speed at which the wire 5A is wound up. Therefore, “the lifting / lowering speed of the cage 1”> “the lifting / lowering speed of the counterweight 2A”, and the lifting / lowering speed of the counterweight 2A can be limited by the second hoisting machine 4A.
  • the second hoisting machine 4A supplements the first hoisting machine 3A
  • the second hoisting machine 4A limits the lifting distance and the lifting speed of the counterweight 2A. can do.
  • the lifting / lowering distance of the counterweight 2A is half the lifting / lowering distance of the cage 1
  • the lifting / lowering speed of the counterweight 2A is It becomes half of the moving speed of the cage 1.
  • the lifting distance and the lifting speed can be freely adjusted by the motor of the second hoisting machine 4A.
  • the lifting and lowering speed and the lifting speed of the counterweights 2A and 2B can be limited, and the counterweights 2A and 2B can be lifted and lowered safely, and the elevator hoistway 7 The space inside can be used effectively.
  • each of the first hoisting machine 3A and the second hoisting machine 4A may use a motor having an output capable of exhibiting the allocated hoisting load and hoisting speed, and a motor having a smaller capacity than the conventional motor. Can be used and power consumption can be reduced as will be described later.
  • the limitation on the lifting distance and the lifting speed of the counterweight 2B by the second hoisting machine 4B is the same as the limitation on the lifting distance and the lifting speed of the counterweight 2A by the second hoisting machine 4A described above. Since there is, the above description is used.
  • the present inventor compared the motor output of the hoisting machine according to the conventional elevator apparatus and the elevator apparatus according to the present embodiment under the following conditions, and confirmed that the power can be saved.
  • Cage weight 150kg
  • Total weight of passengers (10 persons) ... 10 x 65 kg 650 kg
  • Conventional counterweight weight: cage weight 150 kg + total passenger weight 650 kg x 0.5 475 kg (4 ') Weight of counterweight in this embodiment Addition of weight of second hoist to conventional counterweight weight ...
  • the “winding load” can be calculated by the following equation.
  • Hoisting load (1) “Cage weight” + (2) “Total passenger weight when seating” ⁇ (4) “Counterweight weight” Therefore, the “winding load” is 325 kg (150 kg + 650 kg-475 kg).
  • the calculation formula for output is It becomes as follows.
  • Output (325 kg ⁇ 50 m / min) ⁇ (6120 kg ⁇ m / min ⁇ 0.8) According to the above formula 3, the maximum output during conventional cage ascent is about 3.32 kw.
  • the “winding load” can be calculated by the following equation.
  • Hoisting load (4) “Counterweight weight” ⁇ (1) “Cage weight” above Therefore, the hoisting load is 325 kg (475 kg-150 kg).
  • the output can be calculated by inputting the “winding speed” in (6), “1 kW work per minute” in (7), and “energy efficiency” in (8) into Equation 1 above.
  • the calculation formula is the same as the above formula 3, and the maximum output when the cage descends is about 3.32 kw.
  • the output required for the conventional elevator apparatus is about 3.32 kw at the maximum, and the hoisting machine disposed at one end of the elevator hoistway takes charge of this. Therefore, when there is one hoisting machine, the output of about 3.32 kw is carried by one unit, and when there are a plurality of hoisting machines, each hoisting machine takes the output of about 3.32 kw divided by the number of units.
  • the “winding load” can be calculated by the following equation.
  • Hoisting load above (1) “cage weight” + above (2) “occupant total body weight at capacity” + above (3) “second hoisting machine weight of this embodiment” ⁇ above (4 ′ ) "Counterweight weight” Therefore, the “winding load” is 325 kg (150 kg + 650 kg + 8 kg ⁇ 483 kg).
  • the calculation formula for output Is as follows.
  • Output (325 kg ⁇ 25 m / min) ⁇ (6120 kg ⁇ m / min ⁇ 0.8) According to the above equation 6, the maximum output during cage ascending in this embodiment is about 1.66 kw.
  • the “winding load” can be calculated by the following equation.
  • Hoisting load the above (4 ′) “counter weight” —the above (1) “cage weight” —the above (3) “the second hoisting machine weight of this embodiment” Therefore, the hoisting load is 325 kg (483 kg-150 kg-8 kg).
  • the output can be calculated by inputting the “winding speed” in (6 ′) above, “the work per minute of 1 kW” in (7) above, and “energy efficiency” in (8) above into Equation 1 above.
  • the calculation formula is the same as the above formula 6, and the maximum output when the cage descends is about 1.66 kw.
  • half the output of the conventional elevator device is sufficient, which greatly contributes to power saving of the motor used in the hoisting machine. Furthermore, since this low output can be allocated to four motors, that is, the motors of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B, the output of each motor is about 0.42 kW. It becomes.
  • the second hoisting machines 4A and 4B complement the first hoisting machines 3A and 3B that are fixedly disposed at one end of the elevator hoistway 7. . Therefore, the first and second hoisting machines 3A, 3B, 4A, and 4B can be configured by using a motor with a smaller output than in the past, and the power consumption of each motor can be reduced. .
  • the lifting and lowering speed and the lifting speed of the counterweights 2A and 2B can be limited by the second hoisting machines 4A and 4B, and the counterweights 2A and 2B and the cage 1 can be moved up and down safely.
  • first hoisting machines 3A and 3B are arranged in the elevator hoistway 7 and a pair of second hoisting machines 4A and 4B are arranged in the cage 1.
  • the invention is not limited to this, and it does not exclude the case where a plurality of pairs of first hoisting machines are arranged and second hoisting machines corresponding to the first hoisting machines are arranged.
  • the second hoisting machine can be disposed in a pair or plural pairs at the upper end of the cage and in pairs or plural pairs at the lower end.
  • the first hoisting machine is disposed at the upper end of the elevator hoistway and the second hoisting machine is disposed at the upper outer end of the cage. It is optional depending on the implementation to arrange the first hoisting machine at the lower end of the elevator hoistway and to arrange the second hoisting machine at the lower outer end of the cage.
  • FIG. 2 is an explanatory diagram outlining the structure of the elevator apparatus according to the second embodiment.
  • First hoisting machine 3A and pulley 12A, first hoisting machine 3B and pulley 12B, pulley 6A and pulley 15A, pulley 6B and pulley 15B, pulley 9A and pulley 13A, pulley 9B and pulley 13B, pulley 10A and pulley 14A, the pulley 10B, and the pulley 14B are arranged on the same axis, but for convenience of explanation, the positions are shifted in FIG.
  • the feature of the present embodiment is that, in addition to the configuration of the first embodiment described above, a wire 8A that is wound only by the second hoisting machine 4A is provided.
  • the balance between the counterweights 2A and 2B and the cage 1 by the wire 5A (hereinafter referred to as the first wire 5A) and the wire 5B (hereinafter referred to as the first wire 5B) is the same as in the first embodiment.
  • the counterweights 2A and 2B and the cage 1 are balanced and supported by wires 8A and 8B (hereinafter referred to as second wires 8A and 8B) described below.
  • the upper end of the counterweight 2A is connected to one end of the second wire 8A
  • the middle part of the wire 8A is wound around the drum of the second hoisting machine 4A
  • the upper end of the counterweight 2B is similarly connected to one end of the second wire 8B.
  • the middle part of the wire 8B is wound around the drum of the second hoisting machine 4B, and the two counterweights 2A and 2B and the cage 1 are supported in a balanced state by the second wires 8A and 8B.
  • first wire 5A and the second wire 8A are directly connected to the counterweight 2A and the first and second wires 5A and 8A are connected to the cage 1 via the second hoisting machine 4A.
  • the first wire 5B and the second wire 8B and the counterweight 2B are directly connected and the first and second wires 5B and 8B and the cage 1 are connected through the second hoisting machine 4B to form the balanced structure. is doing. Therefore, in the present embodiment, the burden on each of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B can be reduced in a balanced manner by the counterweights 2A and 2B.
  • the drum 16A around which the first wire 5A of the second hoisting machine 4A is wound and the drum 16B around which the second wire 8A is wound are separate drums.
  • the rotational force of the motor is transmitted.
  • 3 is a drum for winding the first wire 5A of the first hoisting machine 3A
  • 12A is a pulley for winding the second wire 8A as described above.
  • the drum 17 and the pulley 12A are coaxial.
  • the rotational force of the motor of the first hoisting machine 3A is transmitted only to the drum 17.
  • the drum 18A around which the first wire 5B of the second hoisting machine 4B is wound and the drum 18B around which the second wire 8B is wound are separate drums, which are arranged coaxially and rotated by the motor of the second hoisting machine 4B. Transmit power.
  • 3 is a drum for winding the first wire 5B of the first hoisting machine 3B
  • 12B is a pulley for winding the second wire 8B as described above.
  • the drum 19 and the pulley 12B are coaxial.
  • the rotational force of the motor of the first hoisting machine 3A is transmitted only to the drum 19.
  • the first wire 5A has one end connected to the upper end of the counterweight 2A, and further through the pulley 9A and the drums of the first and second hoisting machines 3A and 4A.
  • the other end is connected to the lower end of the counterweight 2A via pulleys 6A and 10A to form an annular wire line. That is, only the pulleys 9A and 10A are added, and basically the same as the wire line by the wire 5A of the first embodiment.
  • the first wire 5B has one end connected to the upper end of the counterweight 2B, the pulley 9B, the drums of the first and second hoisting machines 3B and 4B, the pulleys 6B and 10B, and the other end of the first wire 5B.
  • An annular wire line is formed by connecting to the lower end of the counterweight 2B. That is, only the pulleys 9B and 10B are added, and basically the same as the wire line by the wire 5B of the first embodiment.
  • main wire portion 5Aa and the conventional wire portion 5Ab of the first wire 5A and the main wire portion 5Ba and the conventional wire portion 5Bb of the first wire 5B are the same as those in the first embodiment. Incorporate. Further, the point that the convenience wire portions 5Ab and 5Bb can be omitted is the same as in the first embodiment.
  • the second wire 8A has one end connected to the upper end of the counterweight 2A, the pulleys 13A and 12A, the drum of the second hoisting machine 4A, and the pulleys 15A and 14A. An end is connected to the lower end of the counterweight 2A to form an annular wire line.
  • the portion from one end of the second wire 8A to the portion wound around the drum of the second hoisting machine 4A is the main wire portion 8Aa, and the portion wound from the other end of the wire 8A to the drum of the second hoisting machine 4A
  • the portion up to is the convenience wire portion 8Ab.
  • the second wire 8B has one end connected to the upper end of the counterweight 2B, the pulley 13B / 12B, the drum of the second hoisting machine 4B, the pulley 15B / 14B, and the other end to the above.
  • An annular wire line is formed by connecting to the lower end of the counterweight 2B.
  • the portion from one end of the second wire 8B to the portion wound around the drum of the second hoisting machine 4B is the main wire portion 8Ba, and the portion wound from the other end of the wire 8B to the drum of the second hoisting machine 4B
  • the portion up to is the convenience wire portion 8Bb.
  • the convenience wire portions 8Ab and 8Bb can be omitted also in the second wires 8A and 8B.
  • the second wire 8A unique to the present embodiment is wound only by the second hoisting machine 4A and contributes to the raising and lowering movement of the cage 1 and the counterweight 2A.
  • the second wire 8B is wound only by the second hoisting machine 4B and contributes to the raising and lowering movement of the cage 1 and the counterweight 2B.
  • the lifting / lowering distance of the counterweights 2A and 2B via the first wires 5A and 5B and the lifting and lowering distance of the counterweights 2A and 2B via the second wires 8A and 8B are the same. I have to. That is, as shown in the first embodiment, the counterweights 2A and 2B are moved up and down by the length L1 by which the first wires 5A and 5B are wound up by the first hoisting machines 3A and 3B.
  • the length L2 by which the second wires 8A and 8B are wound up by the second hoisting machines 4A and 4B is the same as the length L1, and the first wires 5A and 5B and the second wires 8A and 8B are The counterweights 2A and 2B are moved up and down safely in cooperation.
  • the motors of the first hoisting machines 3A and 3B and the motors of the second hoisting machines 4A and 4B have the same performance.
  • first wire 5A and the second wire 8A can cooperate to lift and lower the counterweight 2A safely, and the first wire 5B and the second wire 8B can cooperate safely to counterweight 2B. Can be moved up and down.
  • the case where a plurality of pairs of first hoisting machines are arranged and the second hoisting machines corresponding to the first hoisting machines are arranged is not excluded.
  • the second hoisting machine can be disposed in a pair or plural pairs at the upper end of the cage and in pairs or plural pairs at the lower end. Furthermore, it is optional depending on the implementation to arrange the first hoisting machine at the lower end of the elevator hoistway and to arrange the second hoisting machine at the lower outer end of the cage.
  • FIG. 4 is an explanatory diagram outlining the structure of the elevator apparatus according to the third embodiment.
  • the structure of the present embodiment is substantially the same as that of the second embodiment, except that the counterweight 2A connected to the first wire 5A and the counterweight 20A connected to the second wire 8A are separate and independent.
  • the counterweight 2B connected to the one wire 5B and the counterweight 20B connected to the second wire 8B are different from each other. Details will be described below.
  • the upper end of the counterweight 2A is connected to one end of the first wire 5A, and a midway portion of the wire 5A is wound around the drum of the first hoisting machine 3A and the drum of the second hoisting machine 4A.
  • the upper end of the counterweight 2B is connected to one end of the first wire 5B, and the middle part of the wire 5B is wound around the drum of the first hoisting machine 3B and wound around the drum of the second hoisting machine 4B. It has a structure.
  • the upper end of the counterweight 20A is connected to one end of the second wire 8A, and a midway portion of the wire 8A is wound around the drum of the second hoisting machine 4A.
  • the counterweight 20B is connected to one end of the second wire 8B. The upper end is connected, and the middle part of the wire 8B is wound around the drum of the second hoisting machine 4B.
  • the first wire 5A, 5B and the second wire 8A, 8B support the four counterweights 2A, 2B, 20A, 20B and the cage 1 in a balanced state. It has become.
  • the first wires 5A and 5B and the upper ends of the counterweights 2A and 2B are directly connected, and the wires 5A and 5B and the upper end of the cage 1 are connected to the second winding.
  • the second wires 8A and 8B and the upper ends of the counterweights 20A and 20B are directly connected and the wires 8A and 8B and the upper end of the cage 1 are connected via the second hoisting machine 4B. Connected to form the balance structure.
  • the first wire 5A has one end connected to the upper end of the counterweight 2A, and further through the pulley 9A and the drums of the first and second hoisting machines 3A and 4A. The other end is connected to the lower end of the counterweight 2A via pulleys 6A and 10A to form an annular wire line.
  • the first wire 5B has one end connected to the upper end of the counterweight 2B, the pulley 9B, the drums of the first and second hoisting machines 3B and 4B, the pulleys 6B and 10B, and the other end of the first wire 5B.
  • An annular wire line is formed by connecting to the lower end of the counterweight 2B.
  • the counterweights 2 ⁇ / b> A and 2 ⁇ / b> B are arranged so that they can move up and down in the upper half of the elevator hoistway 7.
  • main wire portions 5Aa and 5Ba and the convenience wire portions 5Ab and 5Bb are the same as those in the first and second embodiments, and thus the description thereof is omitted here.
  • the second wire 8A has one end connected to the upper end of the counterweight 20A, the pulleys 13A and 12A, the drum of the second hoisting machine 4A, the pulleys 15A and 14A, and the other. An end is connected to the lower end of the counterweight 20A to form an annular wire line.
  • the second wire 8B has one end connected to the upper end of the counterweight 20B, the pulley 13B and 12B, the drum of the second hoisting machine 4B, and the pulley 15B and 14B, and the other end.
  • An annular wire line is formed by connecting to the lower end of the counterweight 20B.
  • the counterweights 20 ⁇ / b> A and 20 ⁇ / b> B are arranged so that they can move up and down in the lower half of the elevator hoistway 7. Therefore, the counterweights 20A and 20B are moved up and down in the elevator hoistway 7 together with the counterweights 2A and 2B, and the space in the hoistway 7 is not increased.
  • main wire portions 8Aa and 8Ba and the convenience wire portions 8Ab and 5Bb are the same as those in the second embodiment, description thereof is omitted here.
  • the first volume is determined based on the balance between “the sum of the cage weight and the total body weight of the occupant” and the “counter weight” (the total weight of the counter weights 2A, 2B, 20A, and 20B in this embodiment).
  • the operation of the motors of the upper machines 3A and 3B and the second hoisting machines 4A and 4B or the release of the brake are the same as in the first and second embodiments.
  • the limits of the lifting and lowering distance and the lifting speed of the counterweights 2A and 2B by the second hoisting machines 4A and 4B are the same as in the first and second embodiments. Further, the limitation on the lifting distance and the lifting speed of the counterweights 20A and 20B by the second hoisting machines 4A and 4B follows this.
  • the counterweights 2A and 2B are moved up and down in the upper half of the elevator hoistway 7 and the counterweights 20A and 20B are moved up and down in the lower half of the elevator hoistway 7.
  • Each counterweight must be moved up and down at half the distance of the cage 1 up and down.
  • the lifting / lowering distance of the counterweights 2A and 2B via the first wires 5A and 5B and the lifting and lowering distance of the counterweights 20A and 20B via the second wires 8A and 8B are determined. If they are the same, the sum of these up-and-down movement distances, that is, the up-and-down movement distance of the cage 1 is twice the up-and-down movement distance of each counterweight.
  • the counterweights 2A and 2B are moved up and down by the length L1 by which the first wires 5A and 5B are wound up by the first hoisting machines 3A and 3B, and the counterweights 20A and 20B are moved up and down by the second hoisting machines 4A and 4B.
  • 4B will move up and down by the length L2 by which the second wires 8A and 8B are wound up, but if these L1 and L2 are made the same length, the raising and lowering distance of the cage 1 which is the sum of these L1 and L2 is It becomes twice L1 (L2).
  • the motors of the first hoisting machines 3A and 3B and the motors of the second hoisting machines 4A and 4B have the same performance.
  • the burden on the individual wires of the first wires 5A and 5B and the second wires 8A and 8B can be reduced.
  • the case where a plurality of first hoisting machines are arranged and the second hoisting machine corresponding to each first hoisting machine is arranged is not excluded.
  • the second hoisting machine can be disposed in a pair or plural pairs at the upper end of the cage and in pairs or plural pairs at the lower end. Furthermore, it is optional depending on the implementation to arrange the first hoisting machine at the lower end of the elevator hoistway and to arrange the second hoisting machine at the lower outer end of the cage.
  • the elevator apparatus As described above, according to the elevator apparatus according to the present invention, it is possible to save much electric power compared to the conventional elevator apparatus, and of course, this is adopted in a newly installed elevator apparatus, and there are many existing elevator apparatuses in the world. If used as a replacement device, it can contribute to power saving and energy saving.
  • the lifting / lowering distance of the counterweight can be controlled to effectively use the space in the elevator hoistway and contribute to space saving of the elevator hoistway in the building.
  • a small output motor is used for the hoisting machine, and the hoisting machine itself does not increase in weight or size. High building design is possible.

Abstract

The present invention pertains to an elevator device provided with one or more pairs of first hoists (3A, 3B) installed at one end section of an elevator hoistway (7), and further provided with second hoists (4A, 4B) installed at the outer upper end and/or the outer lower end of a cage (1) so as to travel up and down with the cage (1), the number of second hoists (4A, 4B) being at least the same number as that of the first hoists (3A, 3B). One end of a wire is linked to the upper end of a counterweight (2A, 2B), sections partway along the wire are wound around a drum of the first hoists (3A, 3B) and wound around a drum of the second hoists (4A, 4B), and the other end of the wire is linked to the lower end of the counterweight (2A, 2B), forming an overall configuration of an annular wire line. The second hoists (4A, 4B) self-travel along the wire and complement the first hoists (3A, 3B), whereby power consumption can be reduced.

Description

エレベーター装置Elevator equipment
 本発明はエレベーター昇降路の一端部に巻上機を備え、該巻上機により巻き上げられるワイヤーにより、人を運ぶケージとカウンターウェイトとを釣り合い状態で連結するトラクション式エレベーター装置に関する。 The present invention relates to a traction type elevator apparatus that includes a hoisting machine at one end of an elevator hoistway, and connects a cage carrying a person and a counterweight in a balanced state by a wire wound up by the hoisting machine.
 従来のトラクション式エレベーター装置にあっては、基本的には、エレベーター昇降路の一端部(上端部又は下端部)に巻上機を固定配設し、該巻上機により巻き上げるワイヤーの両端にそれぞれカウンターウェイトとケージを連結し、該カウンターウェイトにより上記巻上機の負担を軽減する構成となっている。 In the conventional traction type elevator device, basically, a hoisting machine is fixedly arranged at one end (upper end or lower end) of the elevator hoistway, and the wire is wound up by the hoisting machine. A counterweight and a cage are connected to each other, and the counterweight reduces the burden on the hoisting machine.
 又下記特許文献1乃至4に示すように、上記巻上機をエレベーター昇降路の一端部に複数台配置し、該複数台の巻上機によりケージを昇降動させて個々の巻上機のモータ容量を低減するエレベーター装置が種々開発されている。 Also, as shown in the following Patent Documents 1 to 4, a plurality of the hoisting machines are arranged at one end of the elevator hoistway, and the cages are moved up and down by the hoisting machines, and the motors of the individual hoisting machines are arranged. Various elevator devices for reducing the capacity have been developed.
特開2007―84174号公報JP 2007-84174 A 特開2007―238229号公報JP 2007-238229 A 特開2008-156071号公報JP 2008-156071 A 特開2010-52849号公報JP 2010-52849 A
 上記した従来のトラクション式エレベーター装置にあっては、エレベーター昇降路の一端部に固定して配設する巻上機により巻上負荷及び巻上速度を担わなければならず、巻上機自体や巻上機の制御を改良しなければ有効に省電力を図れない構造となっている。 In the conventional traction type elevator apparatus described above, the hoisting load and the hoisting speed must be borne by the hoisting machine fixed and arranged at one end of the elevator hoistway, and the hoisting machine itself and the hoisting machine It has a structure that cannot save power effectively without improving the control of the upper machine.
 特にケージの昇降動速度を高速化する場合やケージを大型化する場合には、巻上機に使用するモータの出力を増大せねばならず、省電力化に逆行する状況となっている。 Especially when the speed of raising and lowering the cage is increased or when the cage is enlarged, the output of the motor used in the hoisting machine must be increased, which is a situation that goes against power saving.
 上記各特許文献のように、巻上機を複数台にしたとしても、結局は装置全体が負担する巻上負荷を各巻上機のモータが分担しているだけで、巻上速度による負担は変わらないため、装置全体の省電力は図れていない。 Even if a plurality of hoisting machines are used as in each of the above patent documents, the hoisting load that the entire apparatus bears is only shared by the motor of each hoisting machine, and the burden due to the hoisting speed changes. Therefore, power saving of the entire apparatus cannot be achieved.
 又上記従来のトラクション式エレベーター装置にあっては、単なる釣瓶の如くケージとカウンターウェイトとが釣り合っている状態であり、基本的にはケージとカウンターウェイトとは同一距離を同一速度で相対昇降動することとなる。 In the conventional traction type elevator apparatus, the cage and the counterweight are in a balanced state like a simple fishing bottle. Basically, the cage and the counterweight are moved up and down at the same speed and at the same speed. It will be.
 従ってエレベーター昇降路内にはケージが最下位から最上位まで昇降動するスペースと、これと同一の長さのカウンターウェイトが昇降動するスペースを確保せねばならず、ビル内におけるエレベーター昇降路のスリム化の観点から問題点を有している。 Therefore, it is necessary to secure a space for the cage to move up and down from the lowest position to the highest position in the elevator hoistway and a space for the counterweight of the same length to move up and down. It has a problem from the viewpoint of making it easier.
 又ケージと同一速度でカウンターウェイトが相対昇降動するため、ケージの昇降動速度を上げれば上げるほど、その二倍の相対速度でケージとカウンターウェイトとが行き交うこととなり安全面に関する問題点をも有している。 Since the counterweight moves up and down at the same speed as the cage, the higher the cage is moved up and down, the more the cage and counterweight crosses at twice the relative speed. is doing.
 本発明は従来のトラクション式エレベーター装置の構造を抜本的に改良して有効に省電力化を図り、更にはエレベーター昇降路内のスペースを徒に増大することなくカウンターウェイトの昇降動距離及び昇降動速度を制限することができるエレベーター装置を提供する。 The present invention drastically improves the structure of a conventional traction type elevator device to effectively save power, and further increases and decreases the lifting and lowering distance of the counterweight without increasing the space in the elevator hoistway. An elevator apparatus capable of limiting the speed is provided.
 要述すると、本発明に係るエレベーター装置はワイヤーによりケージとカウンターウェイトとを釣り合い状態をもって連結し当該ワイヤーを巻き上げる巻上機の負担を軽減するトラクション式エレベーター装置であって、エレベーター昇降路の一端部に配設される一対又は複数対の第一巻上機を備え、更に上記ケージの外部上端又は外部下端の少なくとも一方に配設され同ケージと共に昇降動する第二巻上機を少なくとも上記第一巻上機と同数備え、上記ワイヤーの一端を上記カウンターウェイトの上端に連結し、同ワイヤーの中途部を上記第一巻上機のドラムに巻きつけると共に上記第二巻上機のドラムに巻きつけ、同ワイヤーの他端を上記カウンターウェイトの下端に連結して全体として環状のワイヤーラインを形成する構成を有し、上記各第二巻上機が上記ワイヤー上を自走しつつ上記各第一巻上機を補完することにより省電力化を図る。即ちケージ昇降動時の巻上負荷のみならず巻上速度をも上記第一・第二巻上機に振り分けることができ、各巻上機のモータの使用電力を低減し省電力化を有効に達成する。又第二巻上機によりカウンターウェイトの昇降動距離及び昇降動速度を制限し、エレベーター昇降路内のスペースを有効活用しつつカウンターウェイトを安全に昇降動することができる。 In short, the elevator apparatus according to the present invention is a traction type elevator apparatus that reduces the burden on a hoisting machine that connects a cage and a counterweight with a wire in a balanced state and winds the wire, and is one end of an elevator hoistway. A pair or a plurality of pairs of first hoisting machines, and at least a second hoisting machine disposed at least one of the upper and lower outer ends of the cage and moving up and down with the cage. Provide the same number as the hoisting machine, connect one end of the wire to the upper end of the counterweight, wind the middle part of the wire around the drum of the first hoisting machine and wind it around the drum of the second hoisting machine The other end of the wire is connected to the lower end of the counterweight to form an annular wire line as a whole, Serial Each second hoisting machine power saving by complementing each first hoisting machine while the self-propelled on said wire. That is, not only the hoisting load at the time of raising and lowering the cage but also the hoisting speed can be distributed to the first and second hoisting machines, and the power consumption of the motors of each hoisting machine can be reduced and power saving can be effectively achieved. To do. Further, the lifting and lowering speed of the counterweight is limited by the second hoisting machine, and the counterweight can be lifted and lowered safely while effectively utilizing the space in the elevator hoistway.
 好ましくは上記ワイヤーは上記第一・第二巻上機の双方により巻き上げられる第一ワイヤーと、上記第二巻上機のみにより巻き上げられる第二ワイヤーとから成る構造とし、上記第一・第二巻上機のそれぞれに掛かる負担をバランスよく軽減する。 Preferably, the wire has a structure composed of a first wire wound up by both the first and second hoisting machines and a second wire wound only by the second hoisting machine, and the first and second windings. Reduce the burden on each machine with a good balance.
 又上記第一ワイヤーに連結するカウンターウェイトと上記第二ワイヤーに連結するカウンターウェイトとを別個独立のものとし、それぞれのカウンターウェイトを別々に昇降動、例えば上下に直列に昇降動させることができる。 Also, the counterweight connected to the first wire and the counterweight connected to the second wire can be made independent, and each counterweight can be moved up and down separately, for example, vertically moved up and down in series.
 他方上記第一ワイヤーに連結するカウンターウェイトと上記第二ワイヤーに連結するカウンターウェイトとを共通のものとし、単数のカウンターウェイトを上記第一ワイヤーと上記第二ワイヤーの協働により安全に昇降動させることができる。 On the other hand, the counterweight connected to the first wire and the counterweight connected to the second wire are made common, and a single counterweight is moved up and down safely by the cooperation of the first wire and the second wire. be able to.
 本発明にあっては、エレベーター昇降路内に固定配設した第一巻上機をケージと共に昇降動する第二巻上機が補完し、ケージ昇降動時の巻上負荷及び巻上速度を適切に第一巻上機と第二巻上機に振り分けることができるため、各巻上機のモータ出力を抑えることができ、もって省電力化に貢献できる。 In the present invention, the first hoisting machine fixedly disposed in the elevator hoistway is supplemented by the second hoisting machine that moves up and down together with the cage, so that the hoisting load and hoisting speed at the time of raising and lowering the cage are appropriate. Moreover, since it can distribute to a 1st hoisting machine and a 2nd hoisting machine, the motor output of each hoisting machine can be suppressed and it can contribute to power saving.
 又ケージと共に昇降動しワイヤー上を自走する第二巻上機によりカウンターウェイトの昇降動距離及び昇降動速度を制限し、安全なるカウンターウェイトの昇降動とエレベーター昇降路内スペースの有効利用を図ることができる。 In addition, the second hoist that moves up and down with the cage and runs on the wire limits the lifting distance and speed of the counterweight, so that the safe lifting of the counterweight and the effective use of the space in the elevator hoistway can be achieved. be able to.
本発明の実施例1に係るエレベーター装置の構造を概示する説明図。Explanatory drawing which roughly illustrates the structure of the elevator apparatus which concerns on Example 1 of this invention. 本発明の実施例2に係るエレベーター装置の構造を概示する説明図。Explanatory drawing which outlines the structure of the elevator apparatus which concerns on Example 2 of this invention. 実施例2における第一巻上機及び第二巻上機の平面図。The top view of the 1st hoisting machine and the 2nd hoisting machine in Example 2. FIG. 本発明の実施例3に係るエレベーター装置の構造を概示する説明図。Explanatory drawing which outlines the structure of the elevator apparatus which concerns on Example 3 of this invention.
 以下本発明に係るエレベーター装置の実施形態を図1乃至図4に基づいて説明する。 Hereinafter, an embodiment of an elevator apparatus according to the present invention will be described with reference to FIGS. 1 to 4.
 図1は本発明に係るエレベーター装置の最も基本的な実施例を示している。 FIG. 1 shows the most basic embodiment of the elevator apparatus according to the present invention.
≪巻上機の配設構造≫
 図1に示すように、本実施例に係るエレベーター装置は、エレベーター昇降路7の一端部(上端部)に対向して配設される一対の第一巻上機3A・3Bと、ケージ1の外部上端に対向して配設され同ケージ1と共に昇降動する一対の第二巻上機4A・4Bを備える構造を有している。尚第二巻上機4A・4Bの電源については特に限定しないが、エレベーター昇降路の上端部から垂下した電源ケーブルを介してビル内の電源を使用するか又はバッテリーを使用することができる。
≪Arrangement structure of hoisting machine≫
As shown in FIG. 1, the elevator apparatus according to the present embodiment includes a pair of first hoisting machines 3 </ b> A and 3 </ b> B disposed to face one end (upper end) of the elevator hoistway 7, and the cage 1. It has a structure provided with a pair of second hoisting machines 4A and 4B which are arranged opposite to the upper end of the outside and move up and down with the cage 1. The power source of the second hoisting machines 4A and 4B is not particularly limited, but a power source in the building or a battery can be used via a power cable hanging from the upper end of the elevator hoistway.
≪釣り合い構造≫
 本実施例においては、ワイヤー5Aの一端にカウンターウェイト2Aの上端を連結し、同ワイヤー5Aの中途部を上記第一巻上機3Aのドラムに巻きつけると共に上記第二巻上機4Aのドラムに巻きつけ、同様にワイヤー5Bの一端にカウンターウェイト2Bの上端を連結し、同ワイヤー5Bの中途部を上記第一巻上機3Bのドラムに巻きつけると共に上記第二巻上機4Bのドラムに巻き付け、これらワイヤー5A・5Bにより二個のカウンターウェイト2A・2Bとケージ1とを釣り合い状態に支持する構造となっている。
≪Balance structure≫
In this embodiment, the upper end of the counterweight 2A is connected to one end of the wire 5A, and a midway portion of the wire 5A is wound around the drum of the first hoisting machine 3A and the drum of the second hoisting machine 4A. Similarly, the upper end of the counterweight 2B is connected to one end of the wire 5B, and the middle portion of the wire 5B is wound around the drum of the first hoisting machine 3B and wound around the drum of the second hoisting machine 4B. These two wires 5A and 5B support the two counterweights 2A and 2B and the cage 1 in a balanced state.
 換言すると、本実施例に係るエレベーター装置にあっては、ワイヤー5Aとカウンターウェイト2Aの上端を直接連結すると共に同ワイヤー5Aとケージ1の上端とを第二巻上機4Aを介して連結し、同様にワイヤー5Bとカウンターウェイト2Bの上端を直接連結すると共に同ワイヤー5Bとケージ1の上端とを第二巻上機4Bを介して連結し、上記釣り合い構造を形成している。 In other words, in the elevator apparatus according to the present embodiment, the wire 5A and the upper end of the counterweight 2A are directly connected and the wire 5A and the upper end of the cage 1 are connected via the second hoisting machine 4A. Similarly, the wire 5B and the upper end of the counterweight 2B are directly connected, and the wire 5B and the upper end of the cage 1 are connected via the second hoisting machine 4B to form the balance structure.
≪ワイヤー5Aによるワイヤーライン≫
 図1に示すように、本実施例においては、ワイヤー5Aは、その一端をカウンターウェイト2Aの上端に連結し、第一・第二巻上機3A・4Aのドラム及び滑車6Aを介して、その他端をカウンターウェイト2Aの下端に連結し、全体として環状のワイヤーラインを形成している。
≪Wire line with wire 5A≫
As shown in FIG. 1, in this embodiment, the wire 5A has one end connected to the upper end of the counterweight 2A, and the other via the drum and pulley 6A of the first and second hoisting machines 3A and 4A. The end is connected to the lower end of the counterweight 2A to form an annular wire line as a whole.
 上記のように、ワイヤー5Aが環状のワイヤーラインを形成しているのは、該ワイヤー5Aの一端から第二巻上機4Aのドラムに巻き付けられた箇所までの部分5Aa(以下、メインワイヤー部分という。)のワイヤー重量に対して、同ワイヤー5Aの他端から第二巻上機4Aのドラムに巻き付けられた箇所までの部分5Ab(以下、コンベンワイヤー部分という。)のワイヤー重量によりバランスを保つためである。 As described above, the wire 5A forms an annular wire line because the portion 5Aa (hereinafter referred to as a main wire portion) from one end of the wire 5A to a portion wound around the drum of the second hoisting machine 4A. In order to maintain balance with the wire weight of the portion 5Ab (hereinafter referred to as the “convex wire portion”) from the other end of the wire 5A to the portion wound around the drum of the second hoisting machine 4A. It is.
≪ワイヤー5Bによるワイヤーライン≫
 又同様に、図1において、ワイヤー5Bは、その一端をカウンターウェイト2Bの上端に連結し、第一・第二巻上機3B・4Bのドラム及び滑車6Bを介して、その他端をカウンターウェイト2Bの下端に連結し、全体として環状のワイヤーラインを形成しており、該ワイヤー5Bの一端から第二巻上機4Bのドラムに巻き付けられた箇所までの部分5Ba(メインワイヤー部分)のワイヤー重量に対して、同ワイヤー5Bの他端から第二巻上機4Bのドラムに巻き付けられた箇所までの部分5Bb(コンベンワイヤー部分)のワイヤー重量でバランスを保っている。
≪Wire line with wire 5B≫
Similarly, in FIG. 1, the wire 5B has one end connected to the upper end of the counterweight 2B, and the other end connected to the counterweight 2B via the drum and pulley 6B of the first and second hoisting machines 3B and 4B. Is connected to the lower end of the wire to form an annular wire line as a whole, and the wire weight of the portion 5Ba (main wire portion) from one end of the wire 5B to the portion wound around the drum of the second hoisting machine 4B On the other hand, the balance is maintained by the wire weight of the portion 5Bb (conventional wire portion) from the other end of the wire 5B to the portion wound around the drum of the second hoisting machine 4B.
≪ケージ及びカウンターウェイトの昇降動≫
 上記の構造の本実施例に係るエレベーター装置において、第二巻上機4Aは第一巻上機3Aがワイヤー5Aを巻き上げる際に該第一巻上機3Aを補完し同第一巻上機3Aと協働してワイヤー5Aを巻き上げる。同様に第二巻上機4Bは第一巻上機3Bがワイヤー5Bを巻き上げる際に該第一巻上機3Bを補完し同第一巻上機3Bと協働してワイヤー5Bを巻き上げる。
≪Raising and lowering of cage and counterweight≫
In the elevator apparatus according to this embodiment having the above-described structure, the second hoisting machine 4A complements the first hoisting machine 3A when the first hoisting machine 3A winds the wire 5A. The wire 5A is wound up in cooperation with. Similarly, when the first hoisting machine 3B winds the wire 5B, the second hoisting machine 4B complements the first hoisting machine 3B and winds the wire 5B in cooperation with the first hoisting machine 3B.
 そのため、従来装置のように、エレベーター昇降路7に固定配設された巻上機のみでワイヤーを巻き上げていた場合に比して、本発明の第一巻上機3A・3B及び第二巻上機4A・4Bに用いる各モータの出力を低減することができる。 Therefore, as compared with the case where the wire is wound only by the hoisting machine fixedly arranged in the elevator hoistway 7 as in the conventional device, the first hoisting machines 3A and 3B and the second hoisting of the present invention The output of each motor used in the machines 4A and 4B can be reduced.
 ここで、トラクション式エレベーター装置の作動原理について説明する。通常、トラクション式エレベーター装置にあっては、「カウンターウェイト重量」は「ケージ重量」と「定員時の乗員の総体重の半分」の和の重量に設定されており、この「カウンターウェイト重量」と「ケージ重量と乗員の総体重(乗員ゼロのときを含む)の和」の釣り合いバランスにより巻上機のモータ作動又はブレーキ解除を行う。 Here, the operating principle of the traction type elevator device will be described. Normally, in a traction type elevator device, the “counter weight” is set to the sum of “cage weight” and “half the total weight of the passengers when seating”. The motor of the hoisting machine is operated or the brake is released according to the balance of “the sum of the cage weight and the total weight of the occupant (including when the occupant is zero)”.
 即ちケージが昇動する際においては、「ケージ重量と乗員の総体重の和」>「カウンターウェイト重量」のときに巻上機のモータが作動する。
 逆に「ケージ重量と乗員の総体重の和」<「カウンターウェイト重量」のときには巻上機のブレーキを解除すればケージは昇動する。
 そして、ケージが昇動する際における巻上機のモータの最大出力(以下、ケージ昇動時最大出力という。)は、ケージに定員の乗員が乗っているときの出力である。
That is, when the cage moves up, the motor of the hoisting machine operates when “the sum of the cage weight and the total weight of the occupant”> “counterweight weight”.
Conversely, when “the sum of the cage weight and the total weight of the occupant” <“counterweight weight”, the cage moves up by releasing the brake of the hoist.
The maximum output of the motor of the hoisting machine when the cage is lifted (hereinafter referred to as the maximum output when the cage is lifted) is an output when a passenger is seated in the cage.
 又ケージが降動する際、即ちカウンターウェイトが昇動する際においては、「カウンターウェイト重量」>「ケージ重量と乗員の総体重の和」のときに巻上機のモータが作動する。
 逆に「カウンターウェイト重量」<「ケージ重量と乗員の総体重の和」のときには巻上機のブレーキを解除すればケージは降動する。
 そして、ケージが降動する際における巻上機のモータの最大出力(以下、ケージ降動時最大出力という。)は、ケージに乗員がゼロのときの出力である。
When the cage descends, that is, when the counterweight moves up, the motor of the hoisting machine operates when “counterweight weight”> “sum of cage weight and total body weight of passenger”.
Conversely, when “counterweight weight” <“sum of cage weight and total passenger weight”, the cage descends if the brake of the hoisting machine is released.
The maximum output of the hoisting motor when the cage descends (hereinafter referred to as the maximum output when the cage descends) is an output when the number of passengers in the cage is zero.
 次いで本実施例におけるケージ1の昇動時及び降動時の第一巻上機3A・3B,第二巻上機4A・4Bのモータが作動する場合について説明する。 Next, the case where the motors of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B are operated when the cage 1 is raised and lowered in the present embodiment will be described.
 ケージ1が昇動する際には、第一巻上機3Aによりワイヤー5Aが図中F1方向に巻き上げられ、同時に該ワイヤー5Aにより第二巻上機4Aはケージ1と共に昇動する。該第二巻上機4Aは昇動しつつ上記ワイヤー5Aを第一巻上機3Aによる巻き上げと同方向に巻き上げて、同ワイヤー5A上を自走する。 When the cage 1 moves up, the wire 5A is wound up in the direction F1 in the figure by the first hoisting machine 3A, and at the same time, the second hoisting machine 4A moves up together with the cage 1 by the wire 5A. The second hoisting machine 4A winds up the wire 5A in the same direction as the hoisting by the first hoisting machine 3A while moving upward, and runs on the wire 5A.
 逆にケージ1が降動する際には、第一巻上機3Aによりワイヤー5Aが図中F2方向に巻き上げられ、同時に該ワイヤー5Aにより第二巻上機4Aはケージ1と共に降動する。該第二巻上機4Aは降動しつつ上記ワイヤー5Aを第一巻上機3Aによる巻き上げと同方向に巻き上げて、同ワイヤー5A上を自走する。 Conversely, when the cage 1 descends, the wire 5A is wound up in the direction F2 in the figure by the first hoisting machine 3A, and at the same time, the second hoisting machine 4A descends together with the cage 1 by the wire 5A. The second hoisting machine 4A winds down the wire 5A in the same direction as the hoisting by the first hoisting machine 3A while descending, and runs on the wire 5A.
 よって、ケージ1は第一巻上機3Aにより巻き上げられるワイヤー5Aの長さL1に第二巻上機4Aにより巻き上げられる長さL2を足した長さを昇降動することとなり、他方、カウンターウェイト2Aは第一巻上機3Aにより巻き上げられるワイヤー5Aの長さL1と同じ長さを昇降動することとなる。そのため、「ケージ1の昇降動距離」>「カウンターウェイト2Aの昇降動距離」となり、第二巻上機4Aによりカウンターウェイト2Aの昇降動距離を制限することができる。 Therefore, the cage 1 moves up and down by adding the length L1 of the wire 5A wound up by the first hoisting machine 3A to the length L2 wound up by the second hoisting machine 4A, while the counterweight 2A. Moves up and down the same length as the length L1 of the wire 5A wound up by the first hoisting machine 3A. For this reason, “the lifting / lowering distance of the cage 1”> “the lifting / lowering distance of the counterweight 2A”, and the lifting / lowering distance of the counterweight 2A can be limited by the second hoisting machine 4A.
 又ケージ1は第一巻上機3Aによりワイヤー5Aが巻き上げられる速度に第二巻上機4Aによりワイヤー5Aが巻き上げられる速度を足した速度で昇降動するのに対し、カウンターウェイト2Aは第一巻上機3Aによりワイヤー5Aが巻き上げられる速度にて昇降動することとなる。そのため、「ケージ1の昇降動速度」>「カウンターウェイト2Aの昇降動速度」となり、第二巻上機4Aによりカウンターウェイト2Aの昇降動速度を制限することができる。 The cage 1 moves up and down at a speed obtained by adding the speed at which the wire 5A is wound up by the second winding machine 4A to the speed at which the wire 5A is wound up by the first winding machine 3A, whereas the counterweight 2A The upper machine 3A moves up and down at a speed at which the wire 5A is wound up. Therefore, “the lifting / lowering speed of the cage 1”> “the lifting / lowering speed of the counterweight 2A”, and the lifting / lowering speed of the counterweight 2A can be limited by the second hoisting machine 4A.
 上記のように、本発明にあっては、第二巻上機4Aが第一巻上機3Aを補完し、同第二巻上機4Aによりカウンターウェイト2Aの昇降動距離と昇降動速度を制限することができる。例えば第一巻上機3Aと第二巻上機4Aに同性能のモータを用いた場合、カウンターウェイト2Aの昇降動距離はケージ1の昇降動距離の半分となり、カウンターウェイト2Aの昇降動速度はケージ1の昇降動速度の半分となる。又第二巻上機4Aのモータにより上記制限する昇降動距離及び昇降動速度を自在に調整できる。 As described above, in the present invention, the second hoisting machine 4A supplements the first hoisting machine 3A, and the second hoisting machine 4A limits the lifting distance and the lifting speed of the counterweight 2A. can do. For example, when a motor having the same performance is used for the first hoisting machine 3A and the second hoisting machine 4A, the lifting / lowering distance of the counterweight 2A is half the lifting / lowering distance of the cage 1, and the lifting / lowering speed of the counterweight 2A is It becomes half of the moving speed of the cage 1. Further, the lifting distance and the lifting speed can be freely adjusted by the motor of the second hoisting machine 4A.
 本実施例にあっては、既述のように、カウンターウェイト2A・2Bの昇降動距離及び昇降動速度を制限し該カウンターウェイト2A・2Bを安全に昇降動することができると共にエレベーター昇降路7内のスペースを有効活用できる。 In this embodiment, as described above, the lifting and lowering speed and the lifting speed of the counterweights 2A and 2B can be limited, and the counterweights 2A and 2B can be lifted and lowered safely, and the elevator hoistway 7 The space inside can be used effectively.
 又第一巻上機3Aと第二巻上機4Aの個々は割り振られた巻上負荷と巻上速度を発揮できる出力を備えたモータを使用すれば良く、従来に比して小容量のモータを使用できると共に後記するように使用電力を低減することができる。 Further, each of the first hoisting machine 3A and the second hoisting machine 4A may use a motor having an output capable of exhibiting the allocated hoisting load and hoisting speed, and a motor having a smaller capacity than the conventional motor. Can be used and power consumption can be reduced as will be described later.
 尚第二巻上機4Bによるカウンターウェイト2Bの昇降動距離及び昇降動速度の制限については、上記説明した第二巻上機4Aによるカウンターウェイト2Aの昇降動距離及び昇降動速度の制限と同様であるので、上記説明を援用する。 The limitation on the lifting distance and the lifting speed of the counterweight 2B by the second hoisting machine 4B is the same as the limitation on the lifting distance and the lifting speed of the counterweight 2A by the second hoisting machine 4A described above. Since there is, the above description is used.
≪従来装置と本実施例に係る装置に要する出力の比較≫ ≪Comparison of output required for the conventional device and the device according to this embodiment≫
 次に従来のエレベーター装置と本実施例に係るエレベーター装置に係る巻上機のモータ出力を比較し、本実施例に係るエレベーター装置による省電力化について説明する。 Next, the motor output of the hoisting machine according to the elevator apparatus according to the present embodiment and the elevator apparatus according to the present embodiment will be compared, and power saving by the elevator apparatus according to the present embodiment will be described.
 本発明者は次の条件で従来のエレベーター装置と本実施例に係るエレベーター装置に係る巻上機のモータ出力を比較し、省電力化できることを確認した。
 (1)ケージ重量…150kg
 (2)定員(10人)の乗員の総体重…10×65kg=650kg
 (3)本実施例の第二巻上機重量…4kg(出力1kwのモータを使用)×2=8kg
 (4)従来のカウンターウェイト重量
     …ケージ重量150kg+定員時の乗員総体重650kg×0.5=475kg
 (4´)本実施例のカウンターウェイト重量
     従来のカウンターウェイト重量に第二巻上機重量分を付加…483kg
 (5)ケージの昇降動速度…50m/分
 (6)従来のエレベーター装置の巻上機による巻上速度…50m/分
 (6´)本実施例のエレベーター装置の巻上機による巻上速度
   (第一巻上機と第二巻上機を同能力として)…25m/分
 (7)1kwの毎分仕事量…6120kg・m/分
 (8)エレベーター装置におけるエネルギー効率…80%
 (9)出力計算式
 式1:出力=(「巻上負荷」×「巻上速度」)÷(「1kwの毎分仕事量」×「エネルギー効率」)
The present inventor compared the motor output of the hoisting machine according to the conventional elevator apparatus and the elevator apparatus according to the present embodiment under the following conditions, and confirmed that the power can be saved.
(1) Cage weight: 150kg
(2) Total weight of passengers (10 persons) ... 10 x 65 kg = 650 kg
(3) Second hoisting machine weight of this embodiment: 4 kg (using a motor with an output of 1 kW) × 2 = 8 kg
(4) Conventional counterweight weight: cage weight 150 kg + total passenger weight 650 kg x 0.5 = 475 kg
(4 ') Weight of counterweight in this embodiment Addition of weight of second hoist to conventional counterweight weight ... 483kg
(5) Cage lifting / lowering speed: 50 m / min (6) Hoisting speed of conventional elevator apparatus hoisting machine: 50 m / min (6 ') Hoisting speed of elevator apparatus hoisting machine of this embodiment ( (The first and second hoisting machines have the same capacity) ... 25 m / min (7) 1 kW work per minute ... 6120 kg · m / min (8) Energy efficiency in the elevator system ... 80%
(9) Output Calculation Formula 1: Output = (“winding load” × “winding speed”) ÷ (“1 kW work per minute” × “energy efficiency”)
≪従来エレベーター装置に要する出力≫
 従来エレベーター装置におけるケージ昇動時最大出力を算出するにあたり、「巻上負荷」は次の式により算出できる。

 式2:巻上負荷=上記(1)「ケージ重量」+上記(2)「定員時の乗員総体重」-上記(4)「カウンターウェイト重量」

 よって「巻上負荷」は325kg(150kg+650kg-475kg)となる。あとは上記(6)の「巻上速度」、上記(7)の「1kwの毎分仕事量」及び上記(8)の「エネルギー効率」を上記式1に入力すれば、出力の計算式は次のとおりとなる。

 式3:出力=(325kg×50m/分)÷(6120kg・m/分×0.8)

 上記式3により従来のケージ昇動時最大出力は約3.32kwとなる。
≪Output required for conventional elevator equipment≫
In calculating the maximum output during cage ascending in the conventional elevator apparatus, the “winding load” can be calculated by the following equation.

Formula 2: Hoisting load = (1) “Cage weight” + (2) “Total passenger weight when seating” − (4) “Counterweight weight”

Therefore, the “winding load” is 325 kg (150 kg + 650 kg-475 kg). After that, if the “winding speed” in (6) above, “1 kW work per minute” in (7) above, and “energy efficiency” in (8) above are input to Equation 1 above, the calculation formula for output is It becomes as follows.

Formula 3: Output = (325 kg × 50 m / min) ÷ (6120 kg · m / min × 0.8)

According to the above formula 3, the maximum output during conventional cage ascent is about 3.32 kw.
 又従来エレベーター装置におけるケージ降動時最大出力を算出するにあたり、「巻上負荷」は次の式により算出できる。

 式4:巻上負荷=上記(4)「カウンターウェイト重量」-上記(1)「ケージ重量」

 よって巻上負荷は325kg(475kg-150kg)となる。あとは上記(6)の「巻上速度」、上記(7)の「1kwの毎分仕事量」及び上記(8)の「エネルギー効率」を上記式1に入力すれば出力を算出できるが、この場合、上記式3と同一の計算式となりケージ降動時最大出力は約3.32kwとなる。
Further, in calculating the maximum output when the cage descends in the conventional elevator apparatus, the “winding load” can be calculated by the following equation.

Formula 4: Hoisting load = (4) “Counterweight weight” − (1) “Cage weight” above

Therefore, the hoisting load is 325 kg (475 kg-150 kg). After that, the output can be calculated by inputting the “winding speed” in (6), “1 kW work per minute” in (7), and “energy efficiency” in (8) into Equation 1 above. In this case, the calculation formula is the same as the above formula 3, and the maximum output when the cage descends is about 3.32 kw.
 従って従来のエレベーター装置に要する出力は最大で約3.32kwであり、エレベーター昇降路の一端部に配設した巻上機がこれを担う。そのため、巻上機1台のときには約3.32kwの出力を一台で担い、複数台の場合には各巻上機は約3.32kwを台数で割った分の出力を担うこととなる。 Therefore, the output required for the conventional elevator apparatus is about 3.32 kw at the maximum, and the hoisting machine disposed at one end of the elevator hoistway takes charge of this. Therefore, when there is one hoisting machine, the output of about 3.32 kw is carried by one unit, and when there are a plurality of hoisting machines, each hoisting machine takes the output of about 3.32 kw divided by the number of units.
≪本実施例のエレベーター装置に要する出力≫
 本実施例のエレベーター装置におけるケージ昇動時最大出力を算出するにあたり、「巻上負荷」は次の式により算出できる。

 式5:巻上負荷=上記(1)「ケージ重量」+上記(2)「定員時の乗員総体重」+上記(3)「本実施例の第二巻上機重量」-上記(4´)「カウンターウェイト重量」

 よって「巻上負荷」は325kg(150kg+650kg+8kg-483kg)となる。あとは上記(6´)の「巻上速度」、上記(7)の「1kwの毎分仕事量」及び上記(8)の「エネルギー効率」を上記式1に入力すれば、出力の計算式は次のとおりとなる。

 式6:出力=(325kg×25m/分)÷(6120kg・m/分×0.8)

 上記式6により本実施例におけるケージ昇動時最大出力は約1.66kwとなる。
≪Output required for elevator device of this embodiment≫
In calculating the maximum output during cage ascending in the elevator apparatus of the present embodiment, the “winding load” can be calculated by the following equation.

Formula 5: Hoisting load = above (1) “cage weight” + above (2) “occupant total body weight at capacity” + above (3) “second hoisting machine weight of this embodiment” −above (4 ′ ) "Counterweight weight"

Therefore, the “winding load” is 325 kg (150 kg + 650 kg + 8 kg−483 kg). After that, if the “winding speed” in (6 ′), “1 kW work per minute” in (7), and “energy efficiency” in (8) are input to Equation 1, the calculation formula for output Is as follows.

Formula 6: Output = (325 kg × 25 m / min) ÷ (6120 kg · m / min × 0.8)

According to the above equation 6, the maximum output during cage ascending in this embodiment is about 1.66 kw.
 又本実施例のエレベーター装置におけるケージ降動時最大出力を算出するにあたり、「巻上負荷」は次の式により算出できる。

 式7:巻上負荷=上記(4´)「カウンターウェイト重量」-上記(1)「ケージ重量」-上記(3)「本実施例の第二巻上機重量」

 よって巻上負荷は325kg(483kg-150kg-8kg)となる。あとは上記(6´)の「巻上速度」、上記(7)の「1kwの毎分仕事量」及び上記(8)の「エネルギー効率」を上記式1に入力すれば、出力を算出できるが、この場合、上記式6と同一の計算式となりケージ降動時最大出力は約1.66kwとなる。
Further, in calculating the maximum output when the cage descends in the elevator apparatus of this embodiment, the “winding load” can be calculated by the following equation.

Formula 7: Hoisting load = the above (4 ′) “counter weight” —the above (1) “cage weight” —the above (3) “the second hoisting machine weight of this embodiment”

Therefore, the hoisting load is 325 kg (483 kg-150 kg-8 kg). The output can be calculated by inputting the “winding speed” in (6 ′) above, “the work per minute of 1 kW” in (7) above, and “energy efficiency” in (8) above into Equation 1 above. However, in this case, the calculation formula is the same as the above formula 6, and the maximum output when the cage descends is about 1.66 kw.
 従って本実施例にあっては、従来のエレベーター装置における出力の半分の出力で済み、巻上機に使用するモータの省電力化に大いに貢献する。更には、この低出力を4台のモータ、即ち第一巻上機3A・3B及び第二巻上機4A・4Bの各モータに割り振ることができるので、各モータの出力は約0.42kw程度となる。 Therefore, in this embodiment, half the output of the conventional elevator device is sufficient, which greatly contributes to power saving of the motor used in the hoisting machine. Furthermore, since this low output can be allocated to four motors, that is, the motors of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B, the output of each motor is about 0.42 kW. It becomes.
≪実施例1のまとめ≫
 上記の通り、本実施例に係るエレベーター装置にあっては、エレベーター昇降路7の一端部に固定して配設する第一巻上機3A・3Bを第二巻上機4A・4Bが補完する。そのため、従来に比して小出力のモータを使用して第一・第二巻上機3A・3B・4A・4Bを構成できるのは勿論のこと、各モータの使用電力を低減することができる。
<< Summary of Example 1 >>
As described above, in the elevator apparatus according to this embodiment, the second hoisting machines 4A and 4B complement the first hoisting machines 3A and 3B that are fixedly disposed at one end of the elevator hoistway 7. . Therefore, the first and second hoisting machines 3A, 3B, 4A, and 4B can be configured by using a motor with a smaller output than in the past, and the power consumption of each motor can be reduced. .
 又第二巻上機4A・4Bによりカウンターウェイト2A・2Bの昇降動距離及び昇降動速度を制限でき、安全にカウンターウェイト2A・2Bとケージ1とを相対昇降動させることができる。 Also, the lifting and lowering speed and the lifting speed of the counterweights 2A and 2B can be limited by the second hoisting machines 4A and 4B, and the counterweights 2A and 2B and the cage 1 can be moved up and down safely.
 本実施例においては、エレベーター昇降路7に一対の第一巻上機3A・3Bを配設し、ケージ1に一対の第二巻上機4A・4Bを配設した例を示したが、本発明はこれに限定されるものではなく、第一巻上機を複数対配設し各第一巻上機に対応する第二巻上機を配設する場合を排除しない。又第二巻上機をケージの上端に一対又は複数対、同下端に一対又は複数対配設することもできる。 In the present embodiment, an example is shown in which a pair of first hoisting machines 3A and 3B are arranged in the elevator hoistway 7 and a pair of second hoisting machines 4A and 4B are arranged in the cage 1. The invention is not limited to this, and it does not exclude the case where a plurality of pairs of first hoisting machines are arranged and second hoisting machines corresponding to the first hoisting machines are arranged. Also, the second hoisting machine can be disposed in a pair or plural pairs at the upper end of the cage and in pairs or plural pairs at the lower end.
 又本実施例においては、エレベーター昇降路の上端部に第一巻上機を配設し、ケージの外部上端に第二巻上機を配設した例を示したが、これとは逆に、エレベーター昇降路の下端部に第一巻上機を配設し、ケージの外部下端に第二巻上機を配設して構成することも実施に応じ任意である。 In this embodiment, the first hoisting machine is disposed at the upper end of the elevator hoistway and the second hoisting machine is disposed at the upper outer end of the cage. It is optional depending on the implementation to arrange the first hoisting machine at the lower end of the elevator hoistway and to arrange the second hoisting machine at the lower outer end of the cage.
 図2は実施例2に係るエレベーター装置の構造を概示する説明図である。後記する第一巻上機3Aと滑車12A、第一巻上機3Bと滑車12B、滑車6Aと滑車15A、滑車6Bと滑車15B、滑車9Aと滑車13A、滑車9Bと滑車13B、滑車10Aと滑車14A、滑車10Bと滑車14Bとはそれぞれ同軸上に配設されるが、説明の便宜上、図2においては、位置をずらして示している。 FIG. 2 is an explanatory diagram outlining the structure of the elevator apparatus according to the second embodiment. First hoisting machine 3A and pulley 12A, first hoisting machine 3B and pulley 12B, pulley 6A and pulley 15A, pulley 6B and pulley 15B, pulley 9A and pulley 13A, pulley 9B and pulley 13B, pulley 10A and pulley 14A, the pulley 10B, and the pulley 14B are arranged on the same axis, but for convenience of explanation, the positions are shifted in FIG.
 本実施例の特徴は既述した実施例1の構成に加えて、第二巻上機4Aのみにより巻き上げられるワイヤー8Aを備える点にある。 The feature of the present embodiment is that, in addition to the configuration of the first embodiment described above, a wire 8A that is wound only by the second hoisting machine 4A is provided.
≪巻上機の配設構造≫
 本実施例の巻上機の配設構造は、前記した実施例1と同様であるので、当該実施例1にて記載した説明を援用する。
≪Arrangement structure of hoisting machine≫
Since the arrangement structure of the hoisting machine of this embodiment is the same as that of the first embodiment, the description described in the first embodiment is used.
≪釣り合い構造≫
 本実施例においては、前記実施例1と同様にワイヤー5A(以下、第一ワイヤー5Aという。)とワイヤー5B(以下、第一ワイヤー5Bという。)によるカウンターウェイト2A・2Bとケージ1との釣り合い支持に加えて、次に述べるワイヤー8A・8B(以下、第二ワイヤー8A・8Bという。)によるカウンターウェイト2A・2Bとケージ1とを釣り合い支持する構造を有している。
≪Balance structure≫
In this embodiment, the balance between the counterweights 2A and 2B and the cage 1 by the wire 5A (hereinafter referred to as the first wire 5A) and the wire 5B (hereinafter referred to as the first wire 5B) is the same as in the first embodiment. In addition to the support, the counterweights 2A and 2B and the cage 1 are balanced and supported by wires 8A and 8B (hereinafter referred to as second wires 8A and 8B) described below.
 即ち第二ワイヤー8Aの一端にカウンターウェイト2Aの上端を連結し、同ワイヤー8Aの中途部を第二巻上機4Aのドラムに巻き付け、同様に第二ワイヤー8Bの一端にカウンターウェイト2Bの上端を連結し、同ワイヤー8Bの中途部を第二巻上機4Bのドラムに巻き付け、これら第二ワイヤー8A・8Bによっても二個のカウンターウェイト2A・2Bとケージ1とを釣り合い状態に支持する。 That is, the upper end of the counterweight 2A is connected to one end of the second wire 8A, the middle part of the wire 8A is wound around the drum of the second hoisting machine 4A, and the upper end of the counterweight 2B is similarly connected to one end of the second wire 8B. The middle part of the wire 8B is wound around the drum of the second hoisting machine 4B, and the two counterweights 2A and 2B and the cage 1 are supported in a balanced state by the second wires 8A and 8B.
 つまり、第一ワイヤー5A及び第二ワイヤー8Aとカウンターウェイト2Aとを直接連結すると共にこれら第一・第二ワイヤー5A・8Aとケージ1とを第二巻上機4Aを介して連結し、同様に第一ワイヤー5B及び第二ワイヤー8Bとカウンターウェイト2Bとを直接連結すると共にこれら第一・第二ワイヤー5B・8Bとケージ1とを第二巻上機4Bを介して連結し上記釣り合い構造を形成している。よって、本実施例にあっては、第一巻上機3A・3Bと第二巻上機4A・4Bのそれぞれに掛かる負担をカウンターウェイト2A・2Bによりバランスよく軽減することができる。 That is, the first wire 5A and the second wire 8A are directly connected to the counterweight 2A and the first and second wires 5A and 8A are connected to the cage 1 via the second hoisting machine 4A. The first wire 5B and the second wire 8B and the counterweight 2B are directly connected and the first and second wires 5B and 8B and the cage 1 are connected through the second hoisting machine 4B to form the balanced structure. is doing. Therefore, in the present embodiment, the burden on each of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B can be reduced in a balanced manner by the counterweights 2A and 2B.
 尚図3に示すように、第二巻上機4Aの第一ワイヤー5Aを巻き付けるドラム16Aと第二ワイヤー8Aを巻き付けるドラム16Bは別ドラムであり、それぞれ同軸上に配され第二巻上機4Aのモータによる回転力を伝達する。又図3中の17は第一巻上機3Aの第一ワイヤー5Aを巻き付けるドラムであり、12Aは既述したように第二ワイヤー8Aを巻き付ける滑車であり、これらドラム17と滑車12Aは同軸上に配され、ドラム17にのみ第一巻上機3Aのモータによる回転力を伝達する。 As shown in FIG. 3, the drum 16A around which the first wire 5A of the second hoisting machine 4A is wound and the drum 16B around which the second wire 8A is wound are separate drums. The rotational force of the motor is transmitted. 3 is a drum for winding the first wire 5A of the first hoisting machine 3A, and 12A is a pulley for winding the second wire 8A as described above. The drum 17 and the pulley 12A are coaxial. The rotational force of the motor of the first hoisting machine 3A is transmitted only to the drum 17.
 又同様に、第二巻上機4Bの第一ワイヤー5Bを巻き付けるドラム18Aと第二ワイヤー8Bを巻き付けるドラム18Bは別ドラムであり、それぞれ同軸上に配され第二巻上機4Bのモータによる回転力を伝達する。又図3中の19は第一巻上機3Bの第一ワイヤー5Bを巻き付けるドラムであり、12Bは既述したように第二ワイヤー8Bを巻き付ける滑車であり、これらドラム19と滑車12Bは同軸上に配され、ドラム19にのみ第一巻上機3Aのモータによる回転力を伝達する。 Similarly, the drum 18A around which the first wire 5B of the second hoisting machine 4B is wound and the drum 18B around which the second wire 8B is wound are separate drums, which are arranged coaxially and rotated by the motor of the second hoisting machine 4B. Transmit power. 3 is a drum for winding the first wire 5B of the first hoisting machine 3B, and 12B is a pulley for winding the second wire 8B as described above. The drum 19 and the pulley 12B are coaxial. The rotational force of the motor of the first hoisting machine 3A is transmitted only to the drum 19.
≪第一ワイヤー5A・5Bによるワイヤーライン≫
 図2に示すように、本実施例においては、第一ワイヤー5Aは、その一端をカウンターウェイト2Aの上端に連結し、滑車9A、第一・第二巻上機3A・4Aのドラムを介し更に滑車6A・10Aを介して、その他端を上記カウンターウェイト2Aの下端に連結し環状のワイヤーラインを形成する。即ち滑車9A・10Aを追加しているだけで、基本的には前記実施例1のワイヤー5Aによるワイヤーラインと同様である。
≪Wire line with first wire 5A ・ 5B≫
As shown in FIG. 2, in the present embodiment, the first wire 5A has one end connected to the upper end of the counterweight 2A, and further through the pulley 9A and the drums of the first and second hoisting machines 3A and 4A. The other end is connected to the lower end of the counterweight 2A via pulleys 6A and 10A to form an annular wire line. That is, only the pulleys 9A and 10A are added, and basically the same as the wire line by the wire 5A of the first embodiment.
 又第一ワイヤー5Bは、その一端をカウンターウェイト2Bの上端に連結し、滑車9B、第一・第二巻上機3B・4Bのドラムを介し更に滑車6B・10Bを介して、その他端を上記カウンターウェイト2Bの下端に連結し環状のワイヤーラインを形成する。即ち滑車9B・10Bを追加しているだけで、基本的には前記実施例1のワイヤー5Bによるワイヤーラインと同様である。 The first wire 5B has one end connected to the upper end of the counterweight 2B, the pulley 9B, the drums of the first and second hoisting machines 3B and 4B, the pulleys 6B and 10B, and the other end of the first wire 5B. An annular wire line is formed by connecting to the lower end of the counterweight 2B. That is, only the pulleys 9B and 10B are added, and basically the same as the wire line by the wire 5B of the first embodiment.
 又第一ワイヤー5Aのメインワイヤー部分5Aa及びコンベンワイヤー部分5Ab、第一ワイヤー5Bのメインワイヤー部分5Ba及びコンベンワイヤー部分5Bbについては、前記実施例1と同様であるので、前記実施例1における説明を援用する。又コンベンワイヤー部分5Ab・5Bbを省略できる点も前記実施例1と同様である。 Further, the main wire portion 5Aa and the conventional wire portion 5Ab of the first wire 5A and the main wire portion 5Ba and the conventional wire portion 5Bb of the first wire 5B are the same as those in the first embodiment. Incorporate. Further, the point that the convenience wire portions 5Ab and 5Bb can be omitted is the same as in the first embodiment.
≪第二ワイヤー8A・8Bによるワイヤーライン≫
 図2に示すように、第二ワイヤー8Aは、その一端をカウンターウェイト2Aの上端に連結し、滑車13A・12A、第二巻上機4Aのドラムを介し更に滑車15A・14Aを介して、その他端を上記カウンターウェイト2Aの下端に連結し環状のワイヤーラインを形成する。尚第二ワイヤー8Aの一端から第二巻上機4Aのドラムに巻き付けられた箇所までの部分はメインワイヤー部分8Aa、同ワイヤー8Aの他端から第二巻上機4Aのドラムに巻き付けられた箇所までの部分はコンベンワイヤー部分8Abである。
≪Wire line with second wire 8A ・ 8B≫
As shown in FIG. 2, the second wire 8A has one end connected to the upper end of the counterweight 2A, the pulleys 13A and 12A, the drum of the second hoisting machine 4A, and the pulleys 15A and 14A. An end is connected to the lower end of the counterweight 2A to form an annular wire line. The portion from one end of the second wire 8A to the portion wound around the drum of the second hoisting machine 4A is the main wire portion 8Aa, and the portion wound from the other end of the wire 8A to the drum of the second hoisting machine 4A The portion up to is the convenience wire portion 8Ab.
 又同様に、第二ワイヤー8Bは、その一端をカウンターウェイト2Bの上端に連結し、滑車13B・12B、第二巻上機4Bのドラムを介し更に滑車15B・14Bを介して、その他端を上記カウンターウェイト2Bの下端に連結し環状のワイヤーラインを形成する。尚第二ワイヤー8Bの一端から第二巻上機4Bのドラムに巻き付けられた箇所までの部分はメインワイヤー部分8Ba、同ワイヤー8Bの他端から第二巻上機4Bのドラムに巻き付けられた箇所までの部分はコンベンワイヤー部分8Bbである。 Similarly, the second wire 8B has one end connected to the upper end of the counterweight 2B, the pulley 13B / 12B, the drum of the second hoisting machine 4B, the pulley 15B / 14B, and the other end to the above. An annular wire line is formed by connecting to the lower end of the counterweight 2B. The portion from one end of the second wire 8B to the portion wound around the drum of the second hoisting machine 4B is the main wire portion 8Ba, and the portion wound from the other end of the wire 8B to the drum of the second hoisting machine 4B The portion up to is the convenience wire portion 8Bb.
 尚第二ワイヤー8A・8Bにおいてもコンベンワイヤー部分8Ab・8Bbを省略できることは勿論である。 Of course, the convenience wire portions 8Ab and 8Bb can be omitted also in the second wires 8A and 8B.
≪ケージ及びカウンターウェイトの昇降動≫
 本実施例におけるケージ1及びカウンターウェイト2A・2Bの昇降動について、第一巻上機3A・3Bと第二巻上機4A・4Bの協働による第一ワイヤー5A・5Bの巻上に関しては、前記実施例1と同様であるので、前記実施例1で説明した内容を援用する。
≪Raising and lowering of cage and counterweight≫
Regarding the raising and lowering movement of the cage 1 and the counterweights 2A and 2B in the present embodiment, regarding the hoisting of the first wires 5A and 5B by the cooperation of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B, Since it is the same as that of the said Example 1, the content demonstrated in the said Example 1 is used.
 又本実施例特有の第二ワイヤー8Aは、第二巻上機4Aのみによって巻き上げられて、ケージ1及びカウンターウェイト2Aの昇降動に貢献する。同様に第二ワイヤー8Bは、第二巻上機4Bのみによって巻き上げられて、ケージ1及びカウンターウェイト2Bの昇降動に貢献する。 Further, the second wire 8A unique to the present embodiment is wound only by the second hoisting machine 4A and contributes to the raising and lowering movement of the cage 1 and the counterweight 2A. Similarly, the second wire 8B is wound only by the second hoisting machine 4B and contributes to the raising and lowering movement of the cage 1 and the counterweight 2B.
 本実施例にあっては、第一ワイヤー5A・5Bを介したカウンターウェイト2A・2Bの昇降動距離と、第二ワイヤー8A・8Bを介したカウンターウェイト2A・2Bの昇降動距離とを同一にせねばならない。即ち前記実施例1で示した通り、カウンターウェイト2A・2Bは、第一巻上機3A・3Bにより第一ワイヤー5A・5Bが巻き上げられる長さL1分だけ昇降動することとなるが、本実施例にあっては、第二巻上機4A・4Bにより第二ワイヤー8A・8Bが巻き上げられる長さL2を上記L1と同長とし、第一ワイヤー5A・5Bと第二ワイヤー8A・8Bとが協働して安全にカウンターウェイト2A・2Bを昇降動させる。 In this embodiment, the lifting / lowering distance of the counterweights 2A and 2B via the first wires 5A and 5B and the lifting and lowering distance of the counterweights 2A and 2B via the second wires 8A and 8B are the same. I have to. That is, as shown in the first embodiment, the counterweights 2A and 2B are moved up and down by the length L1 by which the first wires 5A and 5B are wound up by the first hoisting machines 3A and 3B. In the example, the length L2 by which the second wires 8A and 8B are wound up by the second hoisting machines 4A and 4B is the same as the length L1, and the first wires 5A and 5B and the second wires 8A and 8B are The counterweights 2A and 2B are moved up and down safely in cooperation.
 従って、本実施例においては、第一巻上機3A・3Bのモータと第二巻上機4A・4Bのモータとは同一性能にする。 Therefore, in this embodiment, the motors of the first hoisting machines 3A and 3B and the motors of the second hoisting machines 4A and 4B have the same performance.
 又第二巻上機4A・4Bによるカウンターウェイト2A・2Bの昇降動距離及び昇降動速度の制限は前記実施例1と同様である。 Further, the restrictions on the lifting distance and the lifting speed of the counterweights 2A and 2B by the second hoisting machines 4A and 4B are the same as in the first embodiment.
≪本実施例のエレベーター装置に要する出力≫
 本実施例のエレベーター装置に要する出力については、前記実施例1と同様であるので、前記実施例1で既述した内容を援用する。よって本実施例においても省電力化が有効に達成できることに変わりはない。
≪Output required for elevator device of this embodiment≫
About the output which the elevator apparatus of a present Example requires, since it is the same as that of the said Example 1, the content already described in the said Example 1 is used. Therefore, power saving can be effectively achieved in this embodiment as well.
≪実施例2のまとめ≫
 上記の通り、本実施例に係るエレベーター装置にあっては、前記実施例1と同様の効果に加えて第一巻上機3A・3Bと第二巻上機4A・4Bのそれぞれに掛かる負担をカウンターウェイト2A・2Bに連結した第一ワイヤー5A・5B及び第二ワイヤー8A・8Bによってバランスよく軽減できる。
<< Summary of Example 2 >>
As described above, in the elevator apparatus according to the present embodiment, in addition to the same effects as those of the first embodiment, the load applied to each of the first hoisting machines 3A and 3B and the second hoisting machines 4A and 4B. The first wires 5A and 5B and the second wires 8A and 8B connected to the counterweights 2A and 2B can be reduced in a balanced manner.
 又第一ワイヤー5Aと第二ワイヤー8Aとが協働して安全にカウンターウェイト2Aを昇降動させることができると共に、第一ワイヤー5Bと第二ワイヤー8Bとが協働して安全にカウンターウェイト2Bを昇降動させることができる。 Also, the first wire 5A and the second wire 8A can cooperate to lift and lower the counterweight 2A safely, and the first wire 5B and the second wire 8B can cooperate safely to counterweight 2B. Can be moved up and down.
 又本実施例においても、前記実施例1と同様に、第一巻上機を複数対配設し各第一巻上機に対応する第二巻上機を配設する場合を排除しない。又第二巻上機をケージの上端に一対又は複数対、同下端に一対又は複数対配設することもできる。更にはエレベーター昇降路の下端部に第一巻上機を配設し、ケージの外部下端に第二巻上機を配設して構成することも実施に応じ任意である。 Also in the present embodiment, as in the first embodiment, the case where a plurality of pairs of first hoisting machines are arranged and the second hoisting machines corresponding to the first hoisting machines are arranged is not excluded. Also, the second hoisting machine can be disposed in a pair or plural pairs at the upper end of the cage and in pairs or plural pairs at the lower end. Furthermore, it is optional depending on the implementation to arrange the first hoisting machine at the lower end of the elevator hoistway and to arrange the second hoisting machine at the lower outer end of the cage.
 図4は実施例3に係るエレベーター装置の構造を概示する説明図である。前記実施例2と同様に、第一巻上機3Aと滑車12A、第一巻上機3Bと滑車12B、滑車6Aと滑車15A、滑車6Bと滑車15B、滑車9Aと滑車13A、滑車9Bと滑車13B、滑車10Aと滑車14A、滑車10Bと滑車14Bとはそれぞれ同軸上に配設されるが、説明の便宜上、図4においては、位置をずらして示している。 FIG. 4 is an explanatory diagram outlining the structure of the elevator apparatus according to the third embodiment. As in the second embodiment, the first hoisting machine 3A and the pulley 12A, the first hoisting machine 3B and the pulley 12B, the pulley 6A and the pulley 15A, the pulley 6B and the pulley 15B, the pulley 9A and the pulley 13A, and the pulley 9B and the pulley. 13B, the pulley 10A and the pulley 14A, and the pulley 10B and the pulley 14B are arranged on the same axis. However, for convenience of explanation, the positions are shifted in FIG.
 本実施例の構造は前記実施例2と略同様であるが、異なる点は第一ワイヤー5Aに連結するカウンターウェイト2Aと第二ワイヤー8Aに連結するカウンターウェイト20Aとを別個独立のものとし、第一ワイヤー5Bに連結するカウンターウェイト2Bと第二ワイヤー8Bに連結するカウンターウェイト20Bとを別個独立のものとした点にある。以下、詳述する。 The structure of the present embodiment is substantially the same as that of the second embodiment, except that the counterweight 2A connected to the first wire 5A and the counterweight 20A connected to the second wire 8A are separate and independent. The counterweight 2B connected to the one wire 5B and the counterweight 20B connected to the second wire 8B are different from each other. Details will be described below.
≪巻上機の配設構造≫
 本実施例の巻上機の配設構造は、前記した実施例1と同様であるので、当該実施例1にて記載した説明を援用する。
≪Arrangement structure of hoisting machine≫
Since the arrangement structure of the hoisting machine of this embodiment is the same as that of the first embodiment, the description described in the first embodiment is used.
≪釣り合い構造≫
 本実施例においては、第一ワイヤー5Aの一端にカウンターウェイト2Aの上端を連結し、同ワイヤー5Aの中途部を第一巻上機3Aのドラムに巻きつけると共に第二巻上機4Aのドラムに巻きつけ、同様に第一ワイヤー5Bの一端にカウンターウェイト2Bの上端を連結し、同ワイヤー5Bの中途部を第一巻上機3Bのドラムに巻きつけると共に第二巻上機4Bのドラムに巻き付ける構造となっている。
≪Balance structure≫
In the present embodiment, the upper end of the counterweight 2A is connected to one end of the first wire 5A, and a midway portion of the wire 5A is wound around the drum of the first hoisting machine 3A and the drum of the second hoisting machine 4A. Similarly, the upper end of the counterweight 2B is connected to one end of the first wire 5B, and the middle part of the wire 5B is wound around the drum of the first hoisting machine 3B and wound around the drum of the second hoisting machine 4B. It has a structure.
 加えて第二ワイヤー8Aの一端にカウンターウェイト20Aの上端を連結し、同ワイヤー8Aの中途部を第二巻上機4Aのドラムに巻きつけ、同様に第二ワイヤー8Bの一端にカウンターウェイト20Bの上端を連結し、同ワイヤー8Bの中途部を第二巻上機4Bのドラムに巻き付ける構造となっている。 In addition, the upper end of the counterweight 20A is connected to one end of the second wire 8A, and a midway portion of the wire 8A is wound around the drum of the second hoisting machine 4A. Similarly, the counterweight 20B is connected to one end of the second wire 8B. The upper end is connected, and the middle part of the wire 8B is wound around the drum of the second hoisting machine 4B.
 よって、本実施例にあっては、上記第一ワイヤー5A・5B及び上記第二ワイヤー8A・8Bにより四個のカウンターウェイト2A・2B・20A・20Bとケージ1とを釣り合い状態に支持する構造となっている。 Therefore, in this embodiment, the first wire 5A, 5B and the second wire 8A, 8B support the four counterweights 2A, 2B, 20A, 20B and the cage 1 in a balanced state. It has become.
 換言すると、本実施例に係るエレベーター装置にあっては、第一ワイヤー5A・5Bとカウンターウェイト2A・2Bの上端を直接連結すると共に同ワイヤー5A・5Bとケージ1の上端とを第二巻上機4Aを介して連結し、同様に第二ワイヤー8A・8Bとカウンターウェイト20A・20Bの上端を直接連結すると共に同ワイヤー8A・8Bとケージ1の上端とを第二巻上機4Bを介して連結し、上記釣り合い構造を形成している。 In other words, in the elevator apparatus according to the present embodiment, the first wires 5A and 5B and the upper ends of the counterweights 2A and 2B are directly connected, and the wires 5A and 5B and the upper end of the cage 1 are connected to the second winding. Similarly, the second wires 8A and 8B and the upper ends of the counterweights 20A and 20B are directly connected and the wires 8A and 8B and the upper end of the cage 1 are connected via the second hoisting machine 4B. Connected to form the balance structure.
≪第一ワイヤー5A・5Bによるワイヤーライン≫
 図4に示すように、本実施例においては、第一ワイヤー5Aは、その一端をカウンターウェイト2Aの上端に連結し、滑車9A、第一・第二巻上機3A・4Aのドラムを介し更に滑車6A・10Aを介して、その他端を上記カウンターウェイト2Aの下端に連結し環状のワイヤーラインを形成する。
≪Wire line with first wire 5A ・ 5B≫
As shown in FIG. 4, in the present embodiment, the first wire 5A has one end connected to the upper end of the counterweight 2A, and further through the pulley 9A and the drums of the first and second hoisting machines 3A and 4A. The other end is connected to the lower end of the counterweight 2A via pulleys 6A and 10A to form an annular wire line.
 又第一ワイヤー5Bは、その一端をカウンターウェイト2Bの上端に連結し、滑車9B、第一・第二巻上機3B・4Bのドラムを介し更に滑車6B・10Bを介して、その他端を上記カウンターウェイト2Bの下端に連結し環状のワイヤーラインを形成する。 The first wire 5B has one end connected to the upper end of the counterweight 2B, the pulley 9B, the drums of the first and second hoisting machines 3B and 4B, the pulleys 6B and 10B, and the other end of the first wire 5B. An annular wire line is formed by connecting to the lower end of the counterweight 2B.
 尚図4に示すように、上記カウンターウェイト2A・2Bはエレベーター昇降路7の上半分で昇降動できるように配設する。 As shown in FIG. 4, the counterweights 2 </ b> A and 2 </ b> B are arranged so that they can move up and down in the upper half of the elevator hoistway 7.
 又メインワイヤー部分5Aa・5Ba及びコンベンワイヤー部分5Ab・5Bbについては前記実施例1・2と同様であるので、ここでは説明を割愛する。 Further, the main wire portions 5Aa and 5Ba and the convenience wire portions 5Ab and 5Bb are the same as those in the first and second embodiments, and thus the description thereof is omitted here.
≪第二ワイヤー8A・8Bによるワイヤーライン≫
 図4に示すように、第二ワイヤー8Aは、その一端をカウンターウェイト20Aの上端に連結し、滑車13A・12A、第二巻上機4Aのドラムを介し更に滑車15A・14Aを介して、その他端を上記カウンターウェイト20Aの下端に連結し環状のワイヤーラインを形成する。
≪Wire line with second wire 8A ・ 8B≫
As shown in FIG. 4, the second wire 8A has one end connected to the upper end of the counterweight 20A, the pulleys 13A and 12A, the drum of the second hoisting machine 4A, the pulleys 15A and 14A, and the other. An end is connected to the lower end of the counterweight 20A to form an annular wire line.
 又同様に、第二ワイヤー8Bは、その一端をカウンターウェイト20Bの上端に連結し、滑車13B・12B、第二巻上機4Bのドラムを介し更に滑車15B・14Bを介して、その他端を上記カウンターウェイト20Bの下端に連結し環状のワイヤーラインを形成する。 Similarly, the second wire 8B has one end connected to the upper end of the counterweight 20B, the pulley 13B and 12B, the drum of the second hoisting machine 4B, and the pulley 15B and 14B, and the other end. An annular wire line is formed by connecting to the lower end of the counterweight 20B.
 尚図4に示すように、上記カウンターウェイト20A・20Bはエレベーター昇降路7の下半分で昇降動できるように配設する。よって、当該カウンターウェイト20A・20Bは上記したカウンターウェイト2A・2Bと共にエレベーター昇降路7内で上下に分かれて昇降動することとなり、昇降路7内のスペースを徒に増大することはない。 As shown in FIG. 4, the counterweights 20 </ b> A and 20 </ b> B are arranged so that they can move up and down in the lower half of the elevator hoistway 7. Therefore, the counterweights 20A and 20B are moved up and down in the elevator hoistway 7 together with the counterweights 2A and 2B, and the space in the hoistway 7 is not increased.
 又メインワイヤー部分8Aa・8Ba及びコンベンワイヤー部分8Ab・5Bbについては前記実施例2と同様であるので、ここでは説明を割愛する。 Further, since the main wire portions 8Aa and 8Ba and the convenience wire portions 8Ab and 5Bb are the same as those in the second embodiment, description thereof is omitted here.
≪ケージ及びカウンターウェイトの昇降動≫
 本実施例においても、「ケージ重量と乗員の総体重の和」と「カウンターウェイト重量」(本実施例の場合、カウンターウェイト2A・2B・20A・20Bの総重量)とのバランスにより第一巻上機3A・3Bと第二巻上機4A・4Bのモータの作動又はブレーキ解除を行うことに関しては、前記実施例1・2と同様である。
≪Raising and lowering of cage and counterweight≫
Also in this embodiment, the first volume is determined based on the balance between “the sum of the cage weight and the total body weight of the occupant” and the “counter weight” (the total weight of the counter weights 2A, 2B, 20A, and 20B in this embodiment). The operation of the motors of the upper machines 3A and 3B and the second hoisting machines 4A and 4B or the release of the brake are the same as in the first and second embodiments.
 又第二巻上機4A・4Bによるカウンターウェイト2A・2Bの昇降動距離及び昇降動速度の制限は前記実施例1・2と同様である。更に同第二巻上機4A・4Bによるカウンターウェイト20A・20Bの昇降動距離及び昇降動速度の制限もこれに倣う。 The limits of the lifting and lowering distance and the lifting speed of the counterweights 2A and 2B by the second hoisting machines 4A and 4B are the same as in the first and second embodiments. Further, the limitation on the lifting distance and the lifting speed of the counterweights 20A and 20B by the second hoisting machines 4A and 4B follows this.
 本実施例にあっては、既述したように、カウンターウェイト2A・2Bをエレベーター昇降路7の上半分で昇降動させ、カウンターウェイト20A・20Bをエレベーター昇降路7の下半分で昇降動させるため、各カウンターウェイトをケージ1の昇降動距離の半分の距離で昇降動させなければならない。 In this embodiment, as described above, the counterweights 2A and 2B are moved up and down in the upper half of the elevator hoistway 7 and the counterweights 20A and 20B are moved up and down in the lower half of the elevator hoistway 7. Each counterweight must be moved up and down at half the distance of the cage 1 up and down.
 従って、本実施例にあっては、第一ワイヤー5A・5Bを介したカウンターウェイト2A・2Bの昇降動距離と、第二ワイヤー8A・8Bを介したカウンターウェイト20A・20Bの昇降動距離とを同一にすれば、これらの昇降動距離の和、即ちケージ1の昇降動距離は上記各カウンターウェイトの昇降動距離の二倍となる。 Therefore, in this embodiment, the lifting / lowering distance of the counterweights 2A and 2B via the first wires 5A and 5B and the lifting and lowering distance of the counterweights 20A and 20B via the second wires 8A and 8B are determined. If they are the same, the sum of these up-and-down movement distances, that is, the up-and-down movement distance of the cage 1 is twice the up-and-down movement distance of each counterweight.
 換言すると、カウンターウェイト2A・2Bは、第一巻上機3A・3Bにより第一ワイヤー5A・5Bが巻き上げられる長さL1分だけ昇降動し、カウンターウェイト20A・20Bは第二巻上機4A・4Bにより第二ワイヤー8A・8Bが巻き上げられる長さL2分だけ昇降動することとなるが、これらL1とL2を同長にすれば、これらL1とL2の和であるケージ1の昇降動距離はL1(L2)の二倍となる。 In other words, the counterweights 2A and 2B are moved up and down by the length L1 by which the first wires 5A and 5B are wound up by the first hoisting machines 3A and 3B, and the counterweights 20A and 20B are moved up and down by the second hoisting machines 4A and 4B. 4B will move up and down by the length L2 by which the second wires 8A and 8B are wound up, but if these L1 and L2 are made the same length, the raising and lowering distance of the cage 1 which is the sum of these L1 and L2 is It becomes twice L1 (L2).
 従って、本実施例においても、前記実施例2と同様に、第一巻上機3A・3Bのモータと第二巻上機4A・4Bのモータとは同一性能にする。 Therefore, in this embodiment, as in the second embodiment, the motors of the first hoisting machines 3A and 3B and the motors of the second hoisting machines 4A and 4B have the same performance.
≪本実施例のエレベーター装置に要する出力≫
 本実施例のエレベーター装置に要する出力については、前記実施例1と同様であるので、前記実施例1で既述した内容を援用する。よって本実施例においても当然に省電力化が有効に達成できる。
≪Output required for elevator device of this embodiment≫
About the output which the elevator apparatus of a present Example requires, since it is the same as that of the said Example 1, the content already described in the said Example 1 is used. Therefore, naturally in this embodiment, power saving can be effectively achieved.
≪実施例3のまとめ≫
 上記の通り、本実施例に係るエレベーター装置にあっては、前記実施例1と同様の効果及び前記実施例2の第二ワイヤー8A・8Bによる効果に加えて、カウンターウェイト2A・2Bとカウンターウェイト20A・20Bを別々に制御し昇降動させることができ、エレベーター昇降路7内のスペースを有効に活用できる。
<< Summary of Example 3 >>
As described above, in the elevator apparatus according to the present embodiment, in addition to the same effects as the first embodiment and the effects of the second wires 8A and 8B of the second embodiment, the counterweights 2A and 2B and the counterweight 20A and 20B can be controlled and moved up and down separately, and the space in the elevator hoistway 7 can be used effectively.
 又第一ワイヤー5A・5Bと第二ワイヤー8A・8Bの個々のワイヤーに掛かる負担を軽減することができる。 Also, the burden on the individual wires of the first wires 5A and 5B and the second wires 8A and 8B can be reduced.
 又本実施例においても、前記実施例1・2と同様に、第一巻上機を複数対配設し各第一巻上機に対応する第二巻上機を配設する場合を排除しない。又第二巻上機をケージの上端に一対又は複数対、同下端に一対又は複数対配設することもできる。更にはエレベーター昇降路の下端部に第一巻上機を配設し、ケージの外部下端に第二巻上機を配設して構成することも実施に応じ任意である。 Also in this embodiment, as in the first and second embodiments, the case where a plurality of first hoisting machines are arranged and the second hoisting machine corresponding to each first hoisting machine is arranged is not excluded. . Also, the second hoisting machine can be disposed in a pair or plural pairs at the upper end of the cage and in pairs or plural pairs at the lower end. Furthermore, it is optional depending on the implementation to arrange the first hoisting machine at the lower end of the elevator hoistway and to arrange the second hoisting machine at the lower outer end of the cage.
 以上の通り、本発明に係るエレベーター装置によれば、従来のエレベーター装置よりも大幅に電力を節約でき、これを新設のエレベーター装置に採用するのは勿論のこと、世に数多ある既設のエレベーター装置の置換装置として利用すれば、省電力化ひいては省エネルギー化に貢献できる。 As described above, according to the elevator apparatus according to the present invention, it is possible to save much electric power compared to the conventional elevator apparatus, and of course, this is adopted in a newly installed elevator apparatus, and there are many existing elevator apparatuses in the world. If used as a replacement device, it can contribute to power saving and energy saving.
 又装置全体の出力を低減し更には低減した出力を複数台(最低四台)の巻上機で分担するため、巻上機のモータとして新たに大出力のモータを開発することなく規格品のモータを使用でき、頗る経済的である。 In addition, since the output of the entire device is reduced and the reduced output is shared by multiple hoisting machines (minimum of 4 hoisting machines), standard products can be used without developing a new high-power motor as the hoisting machine motor. A motor can be used and it is economical.
 又カウンターウェイトの昇降動距離を制御し、エレベーター昇降路内のスペースを有効活用することができ、ビル内におけるエレベーター昇降路の省スペース化にも貢献できる。 In addition, the lifting / lowering distance of the counterweight can be controlled to effectively use the space in the elevator hoistway and contribute to space saving of the elevator hoistway in the building.
 加えて、上記の如く、巻上機には小出力のモータを使用し巻上機自体の重量増加や大型化を招くことがないため、本発明に係るエレベーター装置を採用すれば、自由度の高いビル設計が可能となる。 In addition, as described above, a small output motor is used for the hoisting machine, and the hoisting machine itself does not increase in weight or size. High building design is possible.
1…ケージ、2A・2B…カウンターウェイト、3A・3B…第一巻上機、4A・4B…第二巻上機、5A・5B…ワイヤー(第一ワイヤー)、5Aa・5Ba…メインワイヤー部分、5Ab・5Bb…コンベンワイヤー部分、6A・6B…滑車、7…エレベーター昇降路、8A・8B…ワイヤー(第二ワイヤー)、8Aa・8Ba…メインワイヤー部分、8Ab・8Bb…コンベンワイヤー部分、9A・9B…滑車、10A・10B…滑車、12A・12B…滑車、13A・13B…滑車、14A・14B…滑車、15A・15B…滑車、16A・16B…ドラム、17…ドラム、18A・18B…ドラム、19…ドラム、20A・20B…カウンターウェイト、L1…第一巻上機によって巻き上げられる長さ、L2…第二巻上機によって巻き上げられる長さ。 DESCRIPTION OF SYMBOLS 1 ... Cage, 2A * 2B ... Counterweight, 3A * 3B ... 1st winding machine, 4A * 4B ... 2nd winding machine, 5A * 5B ... Wire (1st wire), 5Aa * 5Ba ... Main wire part, 5Ab, 5Bb ... Conventional wire part, 6A, 6B ... Pulley, 7 ... Elevator hoistway, 8A, 8B ... Wire (second wire), 8Aa, 8Ba ... Main wire part, 8Ab, 8Bb ... Conventional wire part, 9A, 9B ... pulleys, 10A and 10B ... pulleys, 12A and 12B ... pulleys, 13A and 13B ... pulleys, 14A and 14B ... pulleys, 15A and 15B ... pulleys, 16A and 16B ... drums, 17 ... drums, 18A and 18B ... drums, 19 ... Drum, 20A / 20B ... Counterweight, L1 ... Length wound up by the first hoisting machine, L2 ... By the second hoisting machine Length that is raised can.

Claims (4)

  1.  ワイヤーによりケージとカウンターウェイトとを釣り合い状態をもって連結し当該ワイヤーを巻き上げる巻上機の負担を軽減するトラクション式エレベーター装置であって、エレベーター昇降路の一端部に配設される一対又は複数対の第一巻上機を備え、更に上記ケージの外部上端又は外部下端の少なくとも一方に配設され同ケージと共に昇降動する第二巻上機を少なくとも上記第一巻上機と同数備え、上記ワイヤーの一端を上記カウンターウェイトの上端に連結し、同ワイヤーの中途部を上記第一巻上機のドラムに巻きつけると共に上記第二巻上機のドラムに巻きつけ、同ワイヤーの他端を上記カウンターウェイトの下端に連結して全体として環状のワイヤーラインを形成する構成を有し、上記各第二巻上機が上記ワイヤー上を自走しつつ上記各第一巻上機を補完することにより省電力化を図ることを特徴とするエレベーター装置。 A traction type elevator device that reduces the burden on a hoisting machine that connects a cage and a counterweight in a balanced state by a wire and winds up the wire, and includes a pair or a plurality of pairs of first and second pairs disposed at one end of the elevator hoistway. A first hoisting machine, and at least one second hoisting machine disposed at at least one of the outer upper end and the outer lower end of the cage and moving up and down with the cage. Is connected to the upper end of the counterweight, and the middle part of the wire is wound around the drum of the first hoisting machine and the drum of the second hoisting machine, and the other end of the wire is wound around the counterweight. Connected to the lower end to form an annular wire line as a whole, and each second hoisting machine is self-propelled on the wire Elevator apparatus characterized by saving power by complementing each first hoisting machine.
  2.  上記ワイヤーは上記第一・第二巻上機の双方により巻き上げられる第一ワイヤーと、上記第二巻上機のみにより巻き上げられる第二ワイヤーとから成ることを特徴とする請求項1記載のエレベーター装置。 2. The elevator apparatus according to claim 1, wherein the wire includes a first wire wound up by both the first and second hoisting machines and a second wire wound up only by the second hoisting machine. .
  3.  上記第一ワイヤーに連結するカウンターウェイトと上記第二ワイヤーに連結するカウンターウェイトとが別個独立のものであることを特徴とする請求項2記載のエレベーター装置。 3. The elevator apparatus according to claim 2, wherein the counterweight connected to the first wire and the counterweight connected to the second wire are separate and independent.
  4.  上記第一ワイヤーに連結するカウンターウェイトと上記第二ワイヤーに連結するカウンターウェイトとが共通であることを特徴とする請求項2記載のエレベーター装置。 The elevator apparatus according to claim 2, wherein the counterweight connected to the first wire and the counterweight connected to the second wire are common.
PCT/JP2014/077203 2013-10-18 2014-10-10 Elevator device WO2015056646A1 (en)

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EP3406558A1 (en) * 2017-05-23 2018-11-28 Otis Elevator Company Machine assembly and elevator
US10875743B2 (en) 2017-06-16 2020-12-29 Otis Elevator Company Rope-climbing self propelled elevator system

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Publication number Priority date Publication date Assignee Title
EP3406558A1 (en) * 2017-05-23 2018-11-28 Otis Elevator Company Machine assembly and elevator
US10875743B2 (en) 2017-06-16 2020-12-29 Otis Elevator Company Rope-climbing self propelled elevator system
US11434107B2 (en) 2017-06-16 2022-09-06 Otis Elevator Company Rope-climbing self propelled elevator system

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