WO2022249231A1 - エレベータの作業補助装置 - Google Patents

エレベータの作業補助装置 Download PDF

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Publication number
WO2022249231A1
WO2022249231A1 PCT/JP2021/019561 JP2021019561W WO2022249231A1 WO 2022249231 A1 WO2022249231 A1 WO 2022249231A1 JP 2021019561 W JP2021019561 W JP 2021019561W WO 2022249231 A1 WO2022249231 A1 WO 2022249231A1
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WO
WIPO (PCT)
Prior art keywords
car
state
support structure
receiving structure
threshold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/019561
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English (en)
French (fr)
Japanese (ja)
Inventor
和弘 吉川
岳広 加藤
聖史 深貝
良直 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN202180098248.4A priority Critical patent/CN117320990A/zh
Priority to JP2023523715A priority patent/JP7412643B2/ja
Priority to PCT/JP2021/019561 priority patent/WO2022249231A1/ja
Publication of WO2022249231A1 publication Critical patent/WO2022249231A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators

Definitions

  • the present disclosure relates to an elevator work assistance device provided in a hoistway.
  • an elevator in which a pillar is provided at the bottom of the hoistway in order to secure a working space for workers at the bottom of the hoistway.
  • the struts lie at the bottom of the hoistway during normal operation of the elevator.
  • the stanchion is erected at the bottom of the hoistway by an operator during maintenance of the elevator. In a state in which the pillars are erected on the bottom of the hoistway, when the car moves below the lowest floor, the car hits the pillars and is prevented from moving downward (see Patent Document 1, for example).
  • the present disclosure has been made to solve the above problems, and aims to obtain an elevator work assistance device that can reduce the work burden on workers at the bottom of the hoistway.
  • the elevator work assist device includes a support fixed in a hoistway in which a car moves, and a support supported by the support and arranged between the bottom of the hoistway and the car in the height direction of the hoistway. and a ligament connected to the car receiving structure and connected to the landing sill, the support being out of the area of the car when viewed from above the hoistway.
  • the state of the car receiving structure is between a threshold reaching state in which the car receiving structure reaches the landing threshold from the support and a retracted state in which the car receiving structure is removed from the landing threshold.
  • the state of the car support structure reaches the threshold, so that part of the car support structure overlaps the area of the car, and the car support structure By changing the state to the retracted state, the car receiving structure moves out of the car area.
  • the elevator work assistance device According to the elevator work assistance device according to the present disclosure, it is possible to reduce the work load on the worker at the bottom of the hoistway.
  • FIG. 1 is a side view showing an elevator according to Embodiment 1;
  • FIG. Figure 2 is an enlarged view of the bottom of the hoistway of Figure 1;
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2;
  • 3 is an enlarged view showing the work assisting device of FIG. 2;
  • FIG. 5 is an enlarged view showing the work assisting device when the car support structure in FIG. 4 is in the retracted state;
  • FIG. FIG. 11 is a side view showing a work assisting device according to Embodiment 2;
  • FIG. 12 is an enlarged view showing a state where the car support structure of the work assisting device according to Embodiment 3 is fixed to the landing threshold;
  • FIG. 12 is an enlarged view showing a state where the car support structure of the work assisting device according to Embodiment 4 is fixed to the landing threshold;
  • FIG. 12 is a top view showing a work assisting device according to Embodiment 5;
  • FIG. 10 is a top view showing a state in which the projection of the car support structure of FIG. 9 is fitted in the threshold groove of the landing threshold;
  • FIG. 11 is a side view showing a work assisting device according to Embodiment 6;
  • FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 11;
  • FIG. 13 is a cross-sectional view showing each work assisting device when the car support structure in FIG. 12 is in a retracted state;
  • Embodiment 1. 1 is a side view showing an elevator according to Embodiment 1.
  • FIG. 2 is an enlarged view of the bottom of the hoistway of FIG. 1;
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2.
  • FIG. In the figure, a car 2 and a counterweight 3 are provided in a hoistway 1 .
  • the car 2 and the counterweight 3 are movable in the hoistway 1 in the height direction of the hoistway 1 .
  • a hoist 4 is installed in the upper part of the hoistway 1 .
  • the hoist 4 generates driving force for moving the car 2 and the counterweight 3 .
  • the hoist 4 has a drive sheave 41 .
  • a plurality of main ropes 5 as suspension bodies are wound around the drive sheave 41 .
  • the car 2 and counterweight 3 are suspended within the hoistway 1 by a plurality of main ropes 5 .
  • the car 2 and the counterweight 3 move in the hoistway 1 in the height direction of the hoistway 1 by the rotation of the drive sheave 41 .
  • a plurality of main ropes 5 are shown as one main rope 5 .
  • a belt instead of a rope may be used as the suspension.
  • a platform doorway 21 is provided on each floor of the building.
  • the hoistway 1 is open to the landing through the landing doorway 21 on each floor.
  • the width direction of the hoistway 1 is defined as the horizontal direction when the hoistway 1 is viewed from the landing.
  • a direction orthogonal to both the width direction and the vertical direction of the hoistway 1 is defined as the depth direction of the hoistway 1 .
  • the frontage direction of the landing doorway 21 on each floor coincides with the width direction of the hoistway 1 .
  • a landing threshold 23 is arranged along the frontage direction of the landing doorway 21 at the lower part of each landing doorway 21 provided on each floor.
  • the landing threshold 23 is fixed to the floor of each floor.
  • a threshold groove 24 is provided on the upper surface of the landing threshold 23 along the frontage direction of the landing doorway 21 .
  • Lower ends of the pair of hall doors 22 are inserted into the threshold grooves 24, respectively.
  • the landing doorway 21 is opened and closed by moving the pair of landing doors 22 in the frontage direction of the landing doorway 21 .
  • a pair of car guide rails 6 and a pair of counterweight guide rails 7 are installed in the hoistway 1, as shown in FIG.
  • the pair of car guide rails 6 are opposed to each other in the width direction of the hoistway 1 .
  • the car 2 is arranged between a pair of car guide rails 6. - ⁇ A pair of counterweight guide rails 7 are opposed to each other in the width direction of the hoistway 1 .
  • the counterweight 3 is arranged between a pair of counterweight guide rails 7 .
  • the car 2 When the hoistway 1 is viewed from above, the car 2 is arranged at a position closer to the landing doorway 21 than the counterweight 3 is. Therefore, the pair of car guide rails 6 are arranged closer to the landing doorway 21 than the pair of counterweight guide rails 7 .
  • the car 2 and the counterweight 3 move in the hoistway 1, the car 2 is guided by a pair of car guide rails 6 and the counterweight 3 is guided by a pair of counterweight guide rails 7. ⁇
  • Elevator equipment includes, for example, car dampers and counterweight dampers.
  • an elevator work assistance device 8 is used to secure a work space for the worker at the bottom of the hoistway 1. .
  • the work auxiliary device 8 prevents the car 2 from entering the bottom of the hoistway 1 .
  • the bottom of the hoistway 1 is a space in the hoistway 1 that exists below the lower end of the car 2 when the car 2 stops at the lowest floor.
  • a pair of work assistance devices 8 are provided in the hoistway 1 .
  • Each of the pair of work assisting devices 8 is provided between the bottom of the hoistway 1 and the car 2 in the height direction of the hoistway 1 .
  • one of the pair of work assistance devices 8 is attached to one car guide rail 6, and the other work assistance device 8 is attached to the other car guide rail 6.
  • the configuration of one work assistance device 8 is the same as the configuration of the other work assistance device 8 . Therefore, only the configuration of one of the work assisting devices 8 will be described.
  • the work auxiliary device 8 has a cage support structure 9, a support 10, and a cord-like body 11.
  • the support 10 is fixed inside the hoistway 1.
  • the support 10 is fixed to the car guide rail 6 . Further, when the hoistway 1 is viewed from above, the support 10 is fixed at a position outside the regions of the car 2 and the counterweight 3, as shown in FIG.
  • the support 10 has a fixed plate 101 and an inclined plate 102 .
  • the fixed plate 101 overlaps the rear surface of the car guide rail 6. Thereby, the fixing plate 101 is arranged orthogonally to the width direction of the hoistway 1 .
  • the fixed plate 101 is detachably fixed to the car guide rail 6 by a rail clip (not shown).
  • the inclined plate 102 is fixed to the end of the fixed plate 101 . Also, the inclined plate 102 is inclined with respect to the fixed plate 101 .
  • the fixed plate 101 is fixed in the hoistway 1 with the end to which the inclined plate 102 is fixed directed toward the landing doorway 21 side. When the support 10 is viewed from above, the inclined plate 102 protrudes from the end of the fixed plate 101 in the direction toward the landing doorway 21 while approaching the center of the hoistway 1 in the width direction.
  • the cage support structure 9 is supported by a support 10. Further, the car receiving structure 9 is arranged between the bottom of the hoistway 1 and the car 2 in the height direction of the hoistway 1 . In this embodiment, the car support structure 9 is arranged at a height that matches the floor surface of the lowest floor.
  • the car support structure 9 is a stretchable elongated member.
  • the cage receiving structure 9 also has a plurality of first link members 91 and a plurality of second link members 92 .
  • the multiple first link members 91 and the multiple second link members 92 are multiple link members connected in series. That is, the cage receiving structure 9 is a link member connected body in which the plurality of first link members 91 and the plurality of second link members 92 are connected in series. In the cage receiving structure 9, the first link members 91 and the second link members 92 are alternately connected in series.
  • a first link member 91 and a second link member 92 which are two link members adjacent to each other, are connected to each other by a connecting shaft 93 .
  • the connecting shaft 93 connects the longitudinal ends of the first link member 91 and the second link member 92 .
  • a first link member 91 and a second link member 92 which are two link members adjacent to each other, are rotatable around a connecting shaft 93 .
  • the connecting shaft 93 is perpendicular to the longitudinal direction of each of the first link member 91 and the second link member 92 .
  • the direction along the connecting shaft 93 is defined as the width direction of the car support structure 9 .
  • the car support structure 9 is supported by the support 10 with the width direction of the car support structure 9 horizontal.
  • Each first link member 91 is a rod-shaped member.
  • Each second link member 92 has a pair of link plates 921 .
  • the pair of link plates 921 face each other in the width direction of the car support structure 9 .
  • the first link member 91 is inserted between a pair of link plates 921 at the connecting portion between the first link member 91 and the second link member 92 . Moreover, the connecting shaft 93 penetrates the first link member 92 and the pair of link plates 921 at the connecting portion between the first link member 91 and the second link member 92 .
  • One end of the car support structure 9 is the threshold-side end.
  • the other end of the car support structure 9 is an end opposite to the threshold.
  • the position of the sill-side end of the car receiving structure 9 is closer to the landing threshold 23 than the position of the opposite-to-sill-side end of the car receiving structure 9 .
  • the end of the car support structure 9 opposite to the threshold is attached to a support 10 .
  • the first link member 91 is a link member formed with the threshold-side end of the car support structure 9 .
  • the second link member 92 is the link member on which the end of the car support structure 9 opposite to the sill is formed.
  • the end of the car support structure 9 opposite to the threshold is attached to the inclined plate 102 by the support shaft 12 .
  • the support shaft 12 is perpendicular to the inclined plate 102 . Further, the support shaft 12 is arranged horizontally.
  • the cage support structure 9 is rotatable around the support shaft 12 with respect to the support 10 .
  • Each connecting shaft 93 in the cage support structure 9 is parallel to the support shaft 12 .
  • the state of the car support structure 9 can be changed between the threshold reached state and the retracted state.
  • 2 and 3 show the pair of work assisting devices 8 when the car support structure 9 is in the threshold reached state.
  • the car receiving structure 9 When the state of the car receiving structure 9 is the threshold reached state, the car receiving structure 9 has reached the landing threshold 23 from the support 10 . Specifically, when the car support structure 9 is in the threshold reached state, the position is closer to the center of the hoistway 1 than the position of the end of the car support structure 9 opposite to the threshold in the width direction of the hoistway 1. The sill-side end of the car support structure 9 reaches the landing sill 23 on the lowest floor. As a result, when the car support structure 9 is in the threshold reaching state, the car support structure 9 is positioned in both the width direction of the hoistway 1 and the depth direction of the hoistway 1 when the hoistway 1 is viewed from above. 9 is slanted. When the hoistway 1 is viewed from above, as shown in FIG. Overlaps the area of car 2.
  • the car support structure 9 When the car support structure 9 is in the retracted state, the car support structure 9 is off the landing threshold 23 .
  • the hoistway 1 When the hoistway 1 is viewed from above, the car support structure 9 moves out of the region of the car 2 in the work assisting device 8 by moving the car support structure 9 to the retracted state.
  • FIG. 4 is an enlarged view showing the work assisting device 8 of FIG.
  • FIG. 5 is an enlarged view showing the work assisting device 8 when the car support structure 9 in FIG. 4 is in the retracted state.
  • the car support structure 9 reaches the threshold by extending the car support structure 9 .
  • the cage receiving structure 9 is in a retracted state by contracting the cage receiving structure 9 .
  • the car support structure 9 is folded by rotating the first link member 91 and the second link member 92 in the direction in which the angle between the links becomes smaller.
  • the connecting portion between the first link member 91 and the second link member 92 is bent and the car support structure 9 is contracted.
  • a projection 94 is provided on the first link member 91 on which the threshold-side end of the car support structure 9 is formed.
  • the protrusion 94 protrudes from the first link member 91 in a direction orthogonal to both the longitudinal direction of the first link member 91 and the width direction of the car receiving structure 9 .
  • the projection 94 projects downward from the first link member 91 .
  • the projection 94 fits into the threshold groove 24 in the landing threshold 23 of the lowest floor. Thereby, the car receiving structure 9 is fixed to the landing threshold 23 .
  • the cord-like body 11 is connected to the car receiving structure 9 .
  • the cord-like body 11 is connected to the first link member 91 formed with the threshold-side end of the car support structure 9 .
  • the cord-like body 11 is also connected to a landing threshold 23 on the lowest floor.
  • the cord-like body 11 hangs from the car receiving structure 9 over the landing threshold 23 .
  • a wire, a rope, a chain, or the like is used as the cord-like body 11 .
  • a work assisting device 8 is attached in advance to each of the pair of car guide rails 6 .
  • the car support structure 9 of each of the pair of work assisting devices 8 is in the retracted state. In this state, even if the car 2 and the counterweight 3 move in the hoistway 1 , the work assisting devices 8 do not interfere with the car 2 and the counterweight 3 .
  • the worker When performing maintenance work on the elevator equipment installed at the bottom of the hoistway 1, the worker opens the landing doorway 21 on the lowest floor. Also, the operator moves the car 2 above the lowest floor. As a result, a worker at the landing on the lowest floor can pull each cord-like body 11 connected to the landing threshold 23 . After that, the operator brings the sill-side end of the car support structure 9 closer to the landing sill 23 while pulling the cord-like body 11 on each work auxiliary device 8 . As a result, the car receiving structure 9 extends and the sill-side end of the car receiving structure 9 reaches the landing sill 23 . In this manner, in each work assisting device 8, the state of the cage receiving structure 9 becomes the state of reaching the threshold.
  • each car receiving structure 9 is fixed to the landing threshold 23 .
  • the car receiving structure 9 is in the threshold reached state, when the car 2 tries to move below the lowest floor, the car 2 interferes with the car receiving structure 9 and the car moves to the bottom of the hoistway 1. 2 is blocked. As a result, a work space for the worker at the bottom of the hoistway 1 is ensured.
  • the worker enters the bottom of the hoistway 1 from the landing doorway 21 on the lowest floor and performs maintenance work on the elevator equipment.
  • the worker moves from the bottom of the hoistway 1 to the landing on the lowest floor through the landing doorway 21 on the lowest floor. After that, the operator removes the projections 94 of each work auxiliary device 8 from the threshold groove 24 of the landing threshold 23, and pushes the threshold-side end of each car receiving structure 9 toward the support 10 with a tool such as a rod. . As a result, in each work assisting device 8, the car support structure 9 contracts, and the state of the car support structure 9 becomes the retracted state. After that, the worker closes the landing doorway 21 on the lowest floor. This completes the maintenance work on the elevator equipment.
  • the cord-like body 11 connected to the car support structure 9 is connected to the landing threshold 23 .
  • the state of the car support structure 9 can be changed between the threshold reached state and the retracted state. Therefore, the state of the car receiving structure 9 can be changed from the retracted state to the threshold reached state by the operator pulling the cord-like body 11 from the landing.
  • the car 2 can be prevented from entering the bottom of the hoistway 1 by the car receiving structure 9 . Therefore, a working space for the worker at the bottom of the hoistway 1 can be secured without the worker entering the bottom of the hoistway 1 .
  • the state of the car support structure 9 is changed to the threshold reached state by extension of the car support structure 9, and to the retracted state by contraction of the car support structure 9. Therefore, it is possible to reduce the arrangement space of the car support structure 9 in the retracted state. Thereby, the space in the hoistway 1 can be effectively utilized.
  • the cage receiving structure 9 has a plurality of first link members 91 and a plurality of second link members 92 connected in series.
  • a first link member 91 and a second link member 92 which are two link members adjacent to each other, are rotatably connected about a connecting shaft 93.
  • the car support structure 9 can be expanded and contracted by the rotation of the first link member 91 and the second link member 92, and the structure of the car support structure 9 can be simplified.
  • FIG. 6 is a side view showing a work assisting device according to Embodiment 2.
  • FIG. Each work auxiliary device 8 has a restoring mechanism 95 .
  • the restoring mechanism 95 is a mechanism that applies a force to the car receiving structure 9 in a direction in which the car receiving structure 9 contracts.
  • the restoring mechanism 95 is provided on the cage receiving structure 9 .
  • the restoration mechanism 95 has a plurality of unit mechanism parts 951 .
  • Each unit mechanism portion 951 generates a force in a direction to bring the first link member 91 and the second link member 92, which are two link members adjacent to each other, closer to each other. That is, the force of the unit mechanism portion 951 is applied to the first link member 91 and the second link member 92 adjacent to each other in the direction in which the cage receiving structure 9 is folded and contracted.
  • Each unit mechanism portion 951 has an elastic body 951a, a first connection portion 951b, and a second connection portion 951c.
  • the first connection portion 951b is fixed to the first link member 91.
  • the second connecting portion 951 c is fixed to the second link member 92 .
  • the first connecting portion 951b is fixed to the middle portion of the first link member 91 in the longitudinal direction
  • the second connecting portion 951c is fixed to the middle portion of the second link member 92 in the longitudinal direction.
  • the first connecting portion 951b protrudes from the first link member 91 in a direction orthogonal to both the longitudinal direction of the first link member 91 and the direction along the connecting shaft 93 .
  • the second connecting portion 951c is fixed in the space between the pair of link plates 921. As shown in FIG. A pin is used as each of the first connection portion 951b and the second connection portion 951c.
  • One end of the elastic body 951a is connected to the first connection portion 951b.
  • the other end of the elastic body 951a is connected to the second connection portion 951c.
  • the elastic body 951a generates an elastic restoring force in the direction in which the first connection portion 951b and the second connection portion 951c approach each other.
  • each unit mechanism portion 951 applies the elastic restoring force of the elastic body 951a to the first link member 91 and the second link member 91 and the second link member 92 in the direction in which the inter-link angle between the first link member 91 and the second link member 92 becomes smaller. It is added to member 92 .
  • a spring is used as the elastic body 951a.
  • the car support structure 9 is kept in the retracted state by the force of the restoring mechanism 95 in each of the pair of work auxiliary devices 8 .
  • the operator at the landing pulls the cord-like body 11, thereby moving the car against the force of the restoring mechanism 95.
  • a receiving structure 9 is deployed.
  • the car receiving structure 9 extends and the sill-side end of the car receiving structure 9 reaches the landing sill 23 . In this way, the state of the cage support structure 9 becomes the threshold reaching state.
  • the force of the restoring mechanism 95 is applied to the car support structure 9 in the direction in which the car support structure 9 contracts. Therefore, the car support structure 9 can be contracted by the force of the restoring mechanism 95 without pushing the car support structure 9 toward the support member 10 . As a result, the state of the car support structure 9 can be easily changed from the threshold reached state to the retracted state.
  • FIG. 7 is an enlarged view showing a state in which the car support structure of the work assistance device according to Embodiment 3 is fixed to the landing threshold.
  • a through-hole 911 is provided in the first link member 91 formed with the threshold-side end of the car support structure 9 .
  • the through hole 911 penetrates the first link member 91 in a direction orthogonal to both the longitudinal direction of the first link member 91 and the width direction of the car receiving structure 9 .
  • a screw hole 231 is provided in the landing threshold 23 .
  • the screw hole 231 extends from the bottom surface of the threshold groove 24 to the bottom surface of the landing threshold 23 .
  • the work auxiliary device 8 has a fixing bolt 96.
  • the fixing bolt 96 is a fastener that fixes the car receiving structure 9 to the landing threshold 23 when the car receiving structure 9 is in the threshold reached state.
  • the threaded portion of the fixing bolt 96 is passed through the through hole 911 .
  • a threaded portion of the fixing bolt 96 is attached to the threaded hole 231 .
  • the car receiving structure 9 is fixed to the landing threshold 23 by screwing the threaded portion of the fixing bolt 96 passed through the through hole 911 into the screw hole 231 .
  • the sill-side end of the car receiving structure 9 overlaps the upper surface of the landing sill 23 .
  • the car support structure 9 is not provided with the projection 94 that fits into the threshold groove 24 .
  • the car support structure 9 is removed from the landing threshold 23 by removing the fixing bolt 96 from the screw hole 231 .
  • Other configurations in this embodiment are the same as those in the first embodiment.
  • the car receiving structure 9 is fixed to the landing threshold 23 by the fixing bolts 96 when the car receiving structure 9 is in the threshold reaching state. Therefore, the car receiving structure 9 can be more reliably fixed to the landing sill 23, and the car receiving structure 9 can be more reliably prevented from unintentionally coming off the landing sill 23. - ⁇
  • FIG. 8 is an enlarged view showing a state where the car support structure of the work assistance device according to Embodiment 4 is fixed to the landing threshold.
  • Each work assisting device 8 has a gripper 97 .
  • the gripper 97 is a fixture that fixes the car receiving structure 9 to the landing threshold 23 when the car receiving structure 9 is in the threshold reaching state.
  • the gripper 97 has a bolt 971 and a pressing member 972 .
  • the pressing member 972 is a plate-like member.
  • a screw hole 973 is provided in the pressing member 972 .
  • the screw hole 973 penetrates the pressing member 972 in the thickness direction of the pressing member 972 .
  • the pressing member 972 overlaps the lower surface of the landing threshold 23 .
  • the first link member 91 formed with the sill-side end of the car support structure 9 overlaps the upper surface of the landing sill 23 .
  • a portion of the landing threshold 23 is sandwiched between the first link member 91 on which the threshold-side end of the car support structure 9 is formed and the pressing member 972 .
  • a through hole 912 is provided in the first link member 91 formed with the threshold-side end of the car support structure 9 .
  • the through hole 912 penetrates the first link member 91 in a direction orthogonal to both the longitudinal direction of the first link member 91 and the width direction of the car receiving structure 9 .
  • the threaded portion of the bolt 971 is passed through the through hole 912 . Also, the threaded portion of the bolt 971 is attached to the threaded hole 973 .
  • the landing threshold 23 is held between the first link member 91 and the pressing member 972 by screwing the threaded portion of the bolt 971 passed through the through hole 912 into the screw hole 973 .
  • the car receiving structure 9 is fixed to the landing threshold 23 . That is, the car receiving structure 9 is fixed to the landing sill 23 by gripping the landing sill 23 between the car receiving structure 9 and the pressing member 972 .
  • the protrusion 94 is fitted in the threshold groove 24 .
  • the car support structure 9 is removed from the landing threshold 23 by loosening the tightening of the bolts 971 in the screw holes 973 .
  • Other configurations in this embodiment are the same as those in the first embodiment.
  • the car support structure 9 is fixed to the landing threshold 23 by the gripper 97 when the car support structure 9 is in the threshold reaching state. Therefore, the car receiving structure 9 can be more reliably fixed to the landing sill 23, and the car receiving structure 9 can be more reliably prevented from unintentionally coming off the landing sill 23. - ⁇ In addition, it is possible to eliminate the trouble of providing the landing threshold 23 with screw holes for attaching bolts.
  • the protrusion 94 of the car receiving structure 9 fits into the threshold groove 24 while the landing threshold 23 is held between the car receiving structure 9 and the pressing member 972 . Therefore, the protrusion 94 can prevent the car receiving structure 9 from sliding with respect to the landing threshold 23 in a direction away from the landing threshold 23 . As a result, the state in which the car support structure 9 is fixed to the landing threshold 23 can be more reliably maintained.
  • FIG. 9 is a top view showing a work assisting device according to Embodiment 5.
  • FIG. The work assistance device 8 has a mounting member 13 .
  • the attachment member 13 is attached to the support 10 .
  • the attachment member 13 is attached to the inclined plate 102 of the support 10 by the support shaft 12 .
  • the support shaft 12 is perpendicular to the inclined plate 102 . Further, the support shaft 12 is arranged horizontally.
  • the mounting member 13 is rotatable around the support shaft 12 with respect to the support 10 .
  • the end of the car support structure 9 opposite to the threshold is attached to the inclined plate 102 via the attachment member 13 .
  • An end of the car support structure 9 opposite to the threshold is connected to a mounting member 13 by a mounting shaft 14 .
  • the mounting shaft 14 is a shaft having an axis orthogonal to a straight line parallel to each connecting shaft 93 .
  • the mounting shaft 14 is perpendicular to the support shaft 12 .
  • the cage receiving structure 9 is connected to the mounting member 13 so as to be rotatable about the mounting shaft 14 .
  • the link member on which the opposite-sill side end of the car support structure 9 is formed is the first link member 91, and the link member on which the threshold-side end of the car support structure 9 is formed. is also the first link member 91 .
  • the mounting shaft 14 is arranged along the longitudinal direction of the first link member 91 on which the end of the car support structure 9 opposite to the threshold is formed.
  • the protrusions 94 protrude in a direction parallel to the connecting shafts 93 from the first link member 91 formed with the sill-side end of the car support structure 9 .
  • the connecting shafts 93 of the car support structure 9 also become horizontal.
  • the connecting shafts 93 of the car support structure 9 are arranged along the vertical direction.
  • FIG. 10 is a top view showing a state where the protrusion 94 of the car support structure 9 of FIG. 9 is fitted into the threshold groove 24 of the landing threshold 23.
  • FIG. 10 When the projection 94 of the car receiving structure 9 fits into the threshold groove 24 of the landing threshold 23 when the car receiving structure 9 is in the threshold reached state, the projection 94 faces downward. As a result, each connecting shaft 93 of the cage support structure 9 is arranged along the vertical direction.
  • each work assisting device 8 when the state of the car support structure 9 is changed from the retracted state to the threshold reached state, the car support structure 9 is deployed by the operator at the landing pulling the cord-like body 11. ⁇ At this time, the car support structure 9 is deployed with the connecting shafts 93 arranged horizontally. As a result, the car receiving structure 9 extends and the sill-side end of the car receiving structure 9 reaches the landing sill 23 . In this way, the state of the cage support structure 9 becomes the threshold reached state.
  • each connecting shaft 93 is arranged along the vertical direction.
  • the projection 94 is fitted into the threshold groove 24 .
  • the car receiving structure 9 is fixed to the landing threshold 23 .
  • each work auxiliary device 8 when returning the state of the car support structure 9 from the threshold reached state to the retracted state, the operator removes the projection 94 from the threshold groove 24 and moves the car support structure until the projection 94 becomes horizontal.
  • the body 9 is rotated about the mounting shaft 14 with respect to the mounting member 13 . After that, the operator pushes the cage support structure 9 toward the support 10 . As a result, the cage receiving structure 9 is folded and shrunk. In this manner, the state of the cage support structure 9 is brought into the retracted state.
  • Other configurations in this embodiment are the same as those in the first embodiment.
  • the car support structure 9 is connected to the mounting member 13 so as to be rotatable about the mounting shaft 14 having an axis perpendicular to the straight line parallel to each connecting shaft 93 . Therefore, each connecting shaft 93 can be arranged in the vertical direction when the cage support structure 9 is in the threshold reaching state. Thereby, the rigidity of the car support structure 9 against the load along the vertical direction can be increased. Therefore, for example, even when the car support structure 9 receives the load of the car 2 downward in the vertical direction from above, the car support structure 9 can be made difficult to bend. A work space can be secured more reliably.
  • FIG. 11 is a side view showing a work assisting device according to Embodiment 6.
  • FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 11.
  • FIG. FIGS. 11 and 12 show the work assisting device 8 when the cage support structure 9 is in the state of reaching the threshold.
  • the cage support structure 9 is movable with respect to the support 10 .
  • the cage receiving structure 9 is horizontally movable with respect to the support 10 .
  • the support 10 is fixed inside the hoistway 1 while being separated from the inner wall surface of the hoistway 1 .
  • the support 10 is arranged between the rear surface of the car guide rail 6 and the inner wall surface of the hoistway 1 in the width direction of the hoistway 1 .
  • the support 10 has a pair of opposing plates 105 , a fixing plate 106 and fixing pins 107 .
  • the fixed plate 106 overlaps the rear surface of the car guide rail 6. Thereby, the fixed plate 106 is orthogonal to the width direction of the hoistway 1 .
  • the fixed plate 106 is detachably fixed to the car guide rail 6 by a rail clip (not shown).
  • a pair of opposing plates 105 are fixed to a fixed plate 106 . Also, the pair of opposing plates 105 face each other in the vertical direction. A space through which the car support structure 9 is passed is formed between the pair of opposing plates 105 .
  • Each of the pair of opposing plates 105 has a fixed-side opposing portion 105a and an open-side opposing portion 105b, as shown in FIG. In each of the pair of opposing plates 105, the open-side opposing portion 105b protrudes from the fixed-side opposing portion 105a toward the hall threshold 23 side.
  • the fixing plate 106 is arranged only in a range where the fixed side facing portions 105a face each other, and the threshold side facing portions 105b face each other. Not placed in range. Only the fixed-side facing portions 105 a of the pair of facing plates 105 are fixed to the fixed plate 106 .
  • the fixing pin 107 is fixed between the open-side facing portions 105b of the pair of facing plates 105, respectively. Moreover, the fixing pin 107 is arranged along the vertical direction.
  • the car support structure 9 is an elongated member having an axis.
  • the direction orthogonal to the axis of the car support structure 9 is defined as the width direction of the car support structure 9 .
  • a direction orthogonal to both the direction along the axis of the car support structure 9 and the width direction of the car support structure 9 is defined as the thickness direction of the car support structure 9 .
  • the cage receiving structure 9 is arranged so that the thickness direction of the cage receiving structure 9 is aligned with the vertical direction.
  • the car support structure 9 has a main body member 98 , a retainer member 99 and an extension member 100 .
  • Each of the main body member 98 and the extension member 100 is a member along the axis of the cage receiving structure 9 . Thereby, the longitudinal directions of the main body member 98 and the extension member 100 are aligned with the direction along the axis of the car support structure 9 .
  • One end of extension member 100 is secured to one end of body member 98 .
  • the other end of the body member 98 is the end of the car support structure 9 opposite to the threshold.
  • the other end of the extension member 100 is the sill-side end of the car support structure 9 .
  • the body member 98 has a pair of long plates 981 .
  • a pair of long plates 981 are plates along the axis of the car support structure 9 .
  • the pair of long plates 981 face each other in the width direction of the car support structure 9 .
  • the retaining member 99 is fixed to the end of the car support structure 9 opposite to the threshold. Also, the retaining member 99 is fixed between a pair of long plates 981 . In this embodiment, a pin that connects the pair of long plates 981 to each other is used as the retaining member 99 .
  • the retaining member 99 is arranged along the width direction of the car receiving structure 9 .
  • a protrusion 94 is provided at the threshold-side end of the car support structure 9 .
  • the protrusion 94 protrudes downward from the extension member 100 along the thickness direction of the car receiving structure 9 .
  • the cord-like body 11 connected to the landing threshold 23 on the lowest floor is connected to an extension member 100 as shown in FIG.
  • a part of the car support structure 9 is passed through the space between the pair of opposing plates 105 .
  • the car support structure 9 is sandwiched between the pair of opposing plates 105 in the thickness direction of the car support structure 9 .
  • the cage receiving structure 9 is movable relative to the support 10 in a direction along the pair of opposing plates 105, that is, in a horizontal direction while being guided by the pair of opposing plates 105 respectively.
  • the fixing pin 107 is passed between the pair of long plates 981 . Also, the fixing pin 107 is slidable between the pair of long plates 981 in the longitudinal direction of the main body member 98 . As a result, the car support structure 9 can move relative to the support 10 while being slid along the axis of the car support structure 9 with respect to the fixing pin 107 .
  • the range in which the cage receiving structure 9 can slide with respect to the fixing pin 107 is the range between the retaining member 99 and the extension member 100 . Further, the cage receiving structure 9 is also rotatable with respect to the support 10 around the fixing pin 107 .
  • each work assisting device 8 the movement of the car receiving structure 9 relative to the support 10 changes the state of the car receiving structure 9 between the threshold reached state and the retracted state.
  • the main body member 98 is supported by the support 10 and the extension member 100 reaches the landing threshold 23 . Further, when the car receiving structure 9 is in the threshold reached state, the projection 94 is fitted into the threshold groove 24 of the landing threshold 23 .
  • FIG. 13 is a sectional view showing each work assisting device 8 when the car support structure 9 in FIG. 12 is in the retracted state.
  • the car support structure 9 When the car support structure 9 is in the retracted state, the car support structure 9 is arranged in the space between the rear surface of the car guide rail 6 and the inner wall surface of the hoistway 1 . Further, when the car support structure 9 is in the retracted state, part of the main body member 98 is accommodated in the space between the pair of opposing plates 105, and the car support structure 9 extends in the depth direction of the hoistway 1. are placed along the Furthermore, when the car receiving structure 9 is in the retracted state, a part of the main body member 98 protrudes from the support 10 farther than the support 10 with respect to the landing threshold 23 .
  • the car receiving structure 9 When changing the state of the car receiving structure 9 from the retracted state to the threshold reaching state, the car receiving structure 9 is moved with respect to the support 10 in a direction approaching the landing threshold 23 by pulling the cord-like body 11 from the landing. . At this time, the cage receiving structure 9 rotates about the fixing pin 107 with respect to the support 10 , and the retaining member 99 moves with respect to the support 10 in a direction toward the fixing pin 107 . Thereby, the extension member 100 of the car receiving structure 9 reaches the landing threshold 23 . In this manner, the state of the cage receiving structure 9 becomes the threshold reaching state. After that, the protrusion 94 of the extension member 100 is fitted into the threshold groove 24 .
  • the car support structure 9 when changing the state of the car support structure 9 from the sill reached state to the retracted state, after removing the projection 94 from the sill groove 24, the car support structure 9 is moved away from the landing sill 23 using a tool such as a stick. Press 9. As a result, the car receiving structure 9 moves relative to the support 10 toward the space between the rear surface of the car guide rail 6 and the inner wall surface of the hoistway 1 . At this time, the car receiving structure 9 rotates about the fixing pin 107 with respect to the support 10 , while the extension member 100 moves with respect to the support 10 in a direction toward the fixing pin 107 .
  • the restoring mechanism 95 is applied to the car support structure 9 in the first embodiment.
  • the restoring mechanism 95 may be applied to the car support structure 9 in the third to fifth embodiments.
  • Embodiment 3 the configuration in which the car support structure 9 is fixed to the landing threshold 23 by the fixing bolts 96 is applied to the car support structure 9 in Embodiment 1.
  • the configuration in which the car receiving structure 9 is fixed to the landing threshold 23 by the fixing bolts 96 may be applied to the car receiving structure 9 in the second, fifth and sixth embodiments.
  • the configuration in which the car support structure 9 is fixed to the landing threshold 23 by the gripper 97 is applied to the car support structure 9 in the first embodiment.
  • the configuration in which the car support structure 9 is fixed to the landing threshold 23 by the grips 97 may be applied to the car support structure 9 in the second, fifth and sixth embodiments.
  • the second link member 92 has a pair of link plates 921 .
  • the configuration of the second link member 92 is not limited to this.
  • only one link plate 921 may be used as the second link member 92 .
  • the first link member 91 and the second link member 92 can be connected to each other by the connecting shaft 93 .
  • a link member connecting body in which a plurality of first link members 91 and a plurality of second link members 92 are connected in series is used as the car support structure 9 .
  • the cage support structure 9 is not limited to the link member connecting body.
  • a slide member connecting body in which a plurality of slide members are connected in series may be used as the car support structure.
  • the cage receiving structure expands and contracts by sliding the plurality of slide members.
  • a plurality of cylindrical members are used as the plurality of slide members.
  • a pair of work assisting devices 8 are provided within the hoistway 1 .
  • the number of work assistance devices 8 is not limited to this.
  • the number of work assistance devices 8 may be only one.
  • the support 10 is fixed to only one of the pair of car guide rails 6 .
  • the support 10 is fixed to the car guide rail 6 .
  • the object to which the support 10 is fixed is not limited to this.
  • the support 10 may be fixed to the inner wall surface of the hoistway 1 .
  • the car support structure 9 is arranged at a height that matches the floor surface of the lowest floor.
  • the position of the car support structure 9 in the height direction of the hoistway 1 is not limited to this.
  • the car support structure 9 may be arranged at a height that matches the floor surface of the floor one floor higher than the lowest floor.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)
PCT/JP2021/019561 2021-05-24 2021-05-24 エレベータの作業補助装置 Ceased WO2022249231A1 (ja)

Priority Applications (3)

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CN202180098248.4A CN117320990A (zh) 2021-05-24 2021-05-24 电梯的作业辅助装置
JP2023523715A JP7412643B2 (ja) 2021-05-24 2021-05-24 エレベータの作業補助装置
PCT/JP2021/019561 WO2022249231A1 (ja) 2021-05-24 2021-05-24 エレベータの作業補助装置

Applications Claiming Priority (1)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001199646A (ja) * 2000-01-18 2001-07-24 Hitachi Building Systems Co Ltd エレベータの安全装置
CN102602789A (zh) * 2012-03-27 2012-07-25 中国矿业大学 一种矿用电梯承接平台及承接方法
JP2016023047A (ja) * 2014-07-22 2016-02-08 三菱電機ビルテクノサービス株式会社 エレベータの衝突防止装置

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Publication number Priority date Publication date Assignee Title
JPH08245100A (ja) * 1995-03-10 1996-09-24 Mitsubishi Denki Bill Techno Service Kk エレベータ籠用作業装置
JPH08319070A (ja) * 1995-05-22 1996-12-03 Mitsubishi Denki Bill Techno Service Kk 保守点検作業台を備えたエレベータ
JP2008222415A (ja) * 2007-03-15 2008-09-25 Mitsubishi Electric Building Techno Service Co Ltd エレベータのピット専用携帯昇降具
JP2012126485A (ja) * 2010-12-14 2012-07-05 Hitachi Building Systems Co Ltd エレベータの点検作業床装置
CN106829663B (zh) * 2015-12-03 2019-01-01 株式会社日立大厦系统 电梯

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001199646A (ja) * 2000-01-18 2001-07-24 Hitachi Building Systems Co Ltd エレベータの安全装置
CN102602789A (zh) * 2012-03-27 2012-07-25 中国矿业大学 一种矿用电梯承接平台及承接方法
JP2016023047A (ja) * 2014-07-22 2016-02-08 三菱電機ビルテクノサービス株式会社 エレベータの衝突防止装置

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