WO2021075053A1 - エレベータの乗場敷居装置及びこれを備えたエレベータ装置 - Google Patents

エレベータの乗場敷居装置及びこれを備えたエレベータ装置 Download PDF

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Publication number
WO2021075053A1
WO2021075053A1 PCT/JP2019/041129 JP2019041129W WO2021075053A1 WO 2021075053 A1 WO2021075053 A1 WO 2021075053A1 JP 2019041129 W JP2019041129 W JP 2019041129W WO 2021075053 A1 WO2021075053 A1 WO 2021075053A1
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WO
WIPO (PCT)
Prior art keywords
sill
building
mounting portion
side mounting
landing
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/JP2019/041129
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English (en)
French (fr)
Japanese (ja)
Inventor
悠 高原
真介 石塚
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to US17/769,351 priority Critical patent/US11866297B2/en
Priority to JP2021552080A priority patent/JP7279181B2/ja
Priority to CN201980101159.3A priority patent/CN114585580B/zh
Priority to PCT/JP2019/041129 priority patent/WO2021075053A1/ja
Priority to EP19948941.0A priority patent/EP4046952B1/en
Publication of WO2021075053A1 publication Critical patent/WO2021075053A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/30—Constructional features of doors or gates
    • B66B13/301—Details of door sills

Definitions

  • the present invention is an elevator landing sill device for fixing a landing sill to a hoistway wall, and by closing a gap between a hoistway wall and a landing sill, a mortar used for finishing a landing floor can be removed from the gap.
  • the present invention relates to an elevator landing sill device provided with a partition member for preventing the inflow into the hoistway, and an elevator device provided with the partition member.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2009-84029
  • Claim 1 of this Patent Document 1 states that "a landing sill arranged along the lower edge of the landing opening to guide the opening and closing operation of the landing door and a first fastening including a bolt to the hoistway wall on the landing opening side".
  • the landing sill is fixed by the second fastener including the bolt, and the landing sill is fixed by the second fastener while being sandwiched between the fixture and the landing sill.
  • a partition member that is fastened together with the fixture is provided, and the partition member closes the gap between the hoistway wall and the landing sill, so that the mortar used for finishing the landing floor can be moved into the hoistway from the gap.
  • An elevator landing sill device that prevents the vehicle from flowing into the hoistway wall, wherein the fixture is a wall-side member fixed to the hoistway wall by the first fastener and the landing threshold is provided by the second fastener.
  • the wall-side member and the sill-side member are connected so as to have a sill-side member to be fixed and the position of the sill-side member can be adjusted in the height direction and the depth direction of the hoistway.
  • the partition member has a first holding plate portion sandwiched between the hoistway wall and the wall-side member, and a second holding plate portion sandwiched between the sill-side member and the landing sill, and the first covering.
  • a bolt of the first fastener is inserted into the holding plate portion to form a first relief portion that allows the position of the first holding plate portion to be changed in the height direction with respect to the bolt, and the second holding plate portion is formed.
  • a bolt of the second fastener was inserted into the portion, and a second relief portion was formed to allow the position of the bolt to be changed in the depth direction of the hoistway with respect to the second holding plate portion. " It is shown.
  • the first sandwiched plate portion and the second sandwiched plate portion constituting the partition member are an integral body having a fixed shape, and the first sandwiched plate portion is a hoistway. Since the structure is fixed to the vertical surface of the wall by fasteners, it is difficult to install the partition member when the dimensional error of the building is large, and in some cases, the second holding plate part of the partition member is the side surface of the landing sill. The problem arises that the car travels to the hoistway side and comes into contact with the car.
  • An object of the present invention is to easily close the gap between the landing sill and the hoistway wall without the partition member protruding toward the hoistway even when the dimensional error of the building in the height direction and the depth direction of the hoistway is large. It is an object of the present invention to obtain an elevator landing sill device capable of preventing the outflow of mortar into the hoistway and an elevator device equipped with the sill device.
  • the present invention provides a hoistway provided in a building for raising and lowering a car, a landing opening provided on the hoistway side of the building, and a landing door provided along the lower edge of the landing opening.
  • An elevator landing sill device equipped with a landing sill that guides the opening and closing of the building and a fixture that is fixed to the hoistway wall of the building and has the landing sill attached to the upper part of the building.
  • a partition member for closing the gap between the two is provided, and the partition member is provided on the central plate portion, the building side mounting portion provided on one end side of the central plate portion, and the other end side of the central plate portion.
  • a car that raises and lowers the hoistway provided in the building
  • a hoisting machine that raises and lowers the car
  • the lower edge of the landing opening provided on the hoistway side of the building.
  • an elevator device provided with an elevator landing threshold device for guiding the opening and closing of a landing door, and the elevator landing threshold device is the above-mentioned elevator landing threshold device.
  • the partition member does not protrude toward the hoistway side and easily closes the gap between the landing sill and the hoistway wall. It is possible to obtain an elevator landing sill device capable of preventing the outflow of mortar into the hoistway and an elevator device equipped with the sill device.
  • FIG. 5 is a side view illustrating the configuration of the partition member shown in FIG. It is a figure explaining the structure of the partition member, and is the figure which shows the state before assembling the central plate part, the building side mounting part, and the sill side mounting part. It is a figure explaining the structure of the partition member, and is the figure which shows the state which assembled the central plate part, the building side mounting part, and the sill side mounting part. Perspective view of the partition member. The figure explaining the operation of the partition member when the gap between a building and a landing threshold is small.
  • the figure explaining the operation of the partition member when the gap between a building and a landing threshold is large It is a figure explaining another example of a partition member, and is the figure corresponding to FIG. It is a figure explaining still another example of a partition member, and is the figure corresponding to FIG.
  • the elevator device 1 has a car 4, a balance weight 5, and a main rope 6 installed in the hoistway 3 of the building 2, and a hoisting machine in the machine room 7 of the building 2. 8 is installed. Then, the main rope 6 having the car 4 connected to one end and the balance weight 5 connected to the other end is wound up by the hoisting machine 8 to move the car 4 to an arbitrary floor. Is configured to allow
  • a landing door 10 that interlocks with the opening and closing of the car door of the car 4 is installed.
  • the lower end of the landing door 10 is slidably supported by the landing threshold device A, which will be described later.
  • the depth direction of the hoistway 3 is the x direction
  • the opening / closing direction of the landing door 10 is the y direction
  • the elevating direction of the car 4 is the z direction.
  • FIG. 2 is a front view showing the elevator landing sill device shown in FIG. 1 and its surroundings
  • FIG. 3 is an enlarged side sectional view showing a portion of the elevator landing sill device shown in FIG.
  • the elevator landing sill device A in the first embodiment includes a landing sill (landing sill) 12 arranged along the lower edge 11 of the landing opening and guiding the opening / closing operation of the landing door 10.
  • a landing sill (landing sill) 12 arranged along the lower edge 11 of the landing opening and guiding the opening / closing operation of the landing door 10.
  • a plurality of fixtures 13 13A, 13B, 13C
  • three fixtures 13 13A, 13B, 13C
  • each fixture 13 is arranged side by side. Is fixed to the hoistway wall 3a by the first fastener 14.
  • the landing sill 12 is fixed to each of the fixtures 13 by the second fastener 15, and further, the wall side member 13a fixed to the hoistway wall 3a by the first fastener 14 and the second fastener.
  • the sill-side member 13b to which the landing sill 12 is fixed by 15 is connected to the sill-side member 13b by a third fastener 16.
  • the fixtures 13A, 13B, 13C all have the same configuration. The configuration will be described in detail with reference to FIG. 3 by taking the fixture 13B as an example.
  • the wall-side member 13a of the fixture 13B is fixed to the hoistway wall 3a by the first fastener 14 including the anchor bolt 14a and the nut 14b.
  • the landing sill 12 is fixed to the sill-side member 13b by a second fastener 15 including a bolt 15a and a nut 15b.
  • the wall-side member 13a and the sill-side member 13b are connected by a third fastener 16 including a bolt 16a and a nut 16b (see FIG. 2).
  • the wall-side member 13a has a plate-shaped fixing allowance 13aa that extends along the hoistway wall 3a and is fixed to the hoistway wall 3a by the first fastener 14, and a depth direction of the hoistway 3 from the fixing allowance 13aa (FIG. It has a plate-shaped connecting allowance 13ab that extends in a direction parallel to the (left-right direction of 3) and the height direction and is connected to the sill-side member 13b by the third fastener 16.
  • the sill-side member 13b has a plate-shaped connecting allowance 13bb which is arranged so as to overlap the connecting allowance 13ab of the wall-side member 13a and is connected by the third fastener 16, and the depth of the hoistway 3 in the left-right direction from the connecting allowance 13bb. It spreads in a direction parallel to the direction and has a plate-shaped mounting allowance 13ba in which the landing sill 12 is fastened by the second fastener 15.
  • a bolt insertion portion 13ac through which the anchor bolt 14a of the first fastener 14 is inserted is formed in the fixing allowance 13aa of the wall side member 13a.
  • the bolt insertion portion 13ac is formed in a long hole long in the longitudinal direction (y direction; the left-right direction in FIG. 2) of the landing threshold 12, whereby the anchor bolt 14a is landed on the fixing allowance 13aa. It is permissible to change the position of the threshold 12 in the longitudinal direction.
  • a plurality of, for example, three bolt insertion portions 13ac are provided side by side at equal intervals in the height direction (z direction).
  • a bolt insertion portion 13ad through which the bolt 16a of the third fastener 16 is inserted is formed in the connection allowance 13ab of the wall side member 13a.
  • the bolt insertion portion 13ad is formed in a long hole long in the depth direction (x direction) of the hoistway 3. As a result, the relative position of the bolt 16a and the wall-side member 13a in the depth direction of the hoistway 3 can be changed.
  • a bolt insertion portion 13bc through which the bolt 16a of the third fastener 16 is inserted is also formed in the connection allowance 13bb of the sill side member 13b.
  • the bolt insertion portion 13bc is formed in a long hole long in the height direction (z direction).
  • the relative positions of the bolt 16a and the sill-side member 13b can be changed in the height direction. That is, the position of the sill-side member 13b can be adjusted by the bolt insertion portions 13ad and 13bc in each of the height direction and the depth direction (x direction; the left-right direction in FIG. 3) of the hoistway 3.
  • the wall side member 13a and the sill side member 13b are connected.
  • a partition member 20 is provided so as to close the gap between the landing threshold 12 and the hoistway wall 3a of the building 2.
  • the partition member 20 has a hinge structure composed of a central plate portion 21, a building-side mounting portion 22 and a sill-side mounting portion 23 rotatably attached to both sides of the central plate portion 21.
  • the building side mounting portion 22 is fixed to the hoistway wall 3a of the building by anchor bolts (building side fasteners) 24, and the sill side mounting portion 23 is fixed to the lower surface of the landing sill 12 by bolts (sill side fasteners) 25. It is attached to.
  • the partition member 20 closes the gap between the landing sill 12 and the hoistway wall 3a of the building 2, and the mortar 30 poured in to make the upper surface of the landing sill 12 and the floor of the landing at the same height is the hoistway. It is designed to prevent the outflow to the inside of 3 (see FIG. 1).
  • floor finishing members such as carpets, tiles, and flooring that form the floor are laid on the upper surface of the mortar 30. Further, since a heavy object such as a trolley may pass through the landing opening in addition to a person, the deformation of the partition member 20 is within the allowable value even if a heavy object with the maximum allowable load that can be transported by the elevator passes. As described above, the thickness or strength of the partition member is determined.
  • 31 is a three-sided frame installed at the landing opening.
  • the width dimension inside the three-sided frame 31 and the width dimension of the landing opening are substantially the same, and the width of the partition member 20 is set to be substantially equal to the width dimension of the landing opening.
  • FIG. 4 is a side view illustrating the configuration of the partition member 20 shown in FIG.
  • the partition member 20 includes a central plate portion 21, a building-side mounting portion 22 attached to the hoistway wall 3a, and a sill-side mounting portion 23 attached to the lower surface of the landing sill 12.
  • the building side mounting portion 22 is rotatably attached to one end side of the central plate portion 21 via a shaft 26, and the sill side is rotatably attached to the other end side of the central plate portion 21 via a shaft 27.
  • the mounting portion 23 is rotatably mounted.
  • the sill-side mounting portion 23 is fixed to a predetermined position on the lower surface of the landing sill 12 by bolts 25. It is preferable that the sill-side mounting portion 23 is configured so that a gap is not formed in contact with the sill over the entire range in the left-right direction (y direction) in contact with the sill 12. Further, the building-side mounting portion 22 may also be configured so that a gap is not formed in contact with the hoistway wall 3a over the entire range in the left-right direction (y direction) in contact with the hoistway wall 3a. If it is unavoidable that a gap is formed between the sill-side mounting portion 23 and the landing sill 12, or between the building-side mounting portion 22 and the hoistway wall 3a, the gap is closed. It is advisable to provide a member, for example, a vinyl sheet or the like.
  • the positional relationship between the landing sill 12 and the building 2 is not constant, and due to a dimensional error in the building 2, the dimensions between the hoistway wall 3a and the landing sill 12 vary.
  • the position of the building-side mounting portion 22 is set to the hoistway wall 3a. It can be freely changed according to the dimension between the landing threshold 12 and the landing threshold 12. Therefore, regardless of the dimension between the hoistway wall 3a and the landing threshold 12, the building side mounting portion 22 can be moved up and down so as to be brought into close contact with the hoistway wall 3a. If the anchor bolt 24 is driven into the hoistway wall 3a corresponding to the building side mounting portion 22, the anchor bolt 24 makes it possible to securely fix the building side mounting portion 22 to the hoistway wall 3a.
  • FIG. 5 is a diagram for explaining the configuration of the partition member 20, a diagram showing a state before assembling the central plate portion 21, the building side mounting portion 22, and the sill side mounting portion 23, and FIG.
  • FIG. 7 is a view showing a state in which the portion 22 and the sill-side mounting portion 23 are assembled, and FIG. 7 is a perspective view of the assembled partition member 20.
  • a plurality of pipe portions 21a through which the shafts 26 and 27 penetrate are provided on both sides of the central plate portion 21 (in this example, two pipe portions 21a are provided on each side). Further, in the building side mounting portion 22 and the sill side mounting portion 23, the pipe portions 22a, 23a through which the shafts 26, 27 penetrate at positions that do not interfere with the pipe portion 21a on the side connected to the central plate portion 21. Are provided in plurality (three in this example). 22b is a bolt hole through which the anchor bolt 24 shown in FIG. 4 penetrates, 23b is a bolt hole through which the bolt 25 shown in FIG. 4 penetrates, and bolt holes 22b and 23b are the longitudinal directions of the partition member 20 (landing threshold). A plurality of bolts (three each in this example) are provided in each of the twelve longitudinal directions (y direction).
  • the central plate portion 21, the building side mounting portion 22, and the sill side mounting portion 23 are combined, and the shafts 26 and 27 refer to the central plate portion 21 with respect to the building side mounting portion 22 and the sill side mounting portion 22 and the above.
  • the sill-side mounting portion 23 is rotatably assembled.
  • FIG. 7 shows a perspective view of the partition member 20 in this assembled state.
  • the shaft 26 extending from one end to the other end of the partition member 20 penetrates the pipe portion 22a of the building side mounting portion 22 and the pipe portion 21a of the central plate portion 21, so that the building side mounting portion 22 rotates with respect to the central plate portion 21. It is attached freely.
  • the shaft 27 extending from one end to the other end of the partition member 20 penetrates the pipe portion 23a of the sill side mounting portion 23 and the pipe portion 21a of the central plate portion 21, so that the sill side mounting portion 23 with respect to the central plate portion 21 Is rotatably attached.
  • the shafts 26 and 27 are prevented from coming off from the partition member 20.
  • FIG. 8 is a diagram for explaining the operation of the partition member 20 when the gap between the building 2 and the landing sill 12 is small, and the dimension between the hoistway wall 3a and the landing sill 12 is small due to the dimensional error of the building.
  • the building-side mounting portion 22 is moved to the lower side of the hoistway wall 3a so that it can be brought into close contact with the hoistway wall 3a.
  • Anchor bolts 24 are driven into the hoistway wall 3a at a position corresponding to the bolt holes 22b of the building side mounting portion 22 in this state, and the anchor bolts 24 attach the building side mounting portion 22 to the hoistway wall 3a. It can be securely adhered and fixed.
  • FIG. 9 is a diagram for explaining the operation of the partition member 20 when the gap between the building 2 and the landing sill 12 is large.
  • the building side mounting By moving the position of the building side mounting portion 22 by the shafts 26 and 27 upward as compared with the case shown in FIG. 8 so that the portion 22 can be brought into close contact with the hoistway wall 3a. , The building side mounting portion 22 can be brought into close contact with the hoistway wall 3a.
  • the building side mounting portion 22 is hoisted by the anchor bolt 24. It can be securely adhered to the wall 3a and fixed.
  • the position of the building side mounting portion 22 can be freely changed by the two shafts 26 and 27 according to the dimensions between the hoistway wall 3a and the landing threshold 12. Can be done. Therefore, if the building side mounting portion 22 is set at a position where it can be brought into close contact with the hoistway wall 3a and the anchor bolts 24 are driven into the building 2, regardless of the dimensions between the hoistway wall 3a and the landing threshold 12. , The partition member 20 can always be fixed in close contact with the hoistway wall 3a and the landing threshold 12. Thereby, according to the present embodiment, it is possible to easily and surely close the gap between the hoistway wall 3a and the landing threshold 12.
  • FIG. 10 is a diagram for explaining another example of the partition member 20, and is a diagram corresponding to FIG.
  • the partition member 20 shown in FIG. 10 is provided with a plurality of pipe portions 21a for inserting shafts on both sides of the central plate portion 21 (two on each side in this example). Further, the building side mounting portion 22 and the sill side mounting portion 23 are provided with a plurality of pipe portions 22a and 23a (two in this example) at positions that do not interfere with the pipe portion 21a of the central plate portion 21. .. Further, shaft portions 22c and 23c for inserting into the pipe portion 21a are fixed to the pipe portions 22a and 23a, respectively.
  • the shaft portion 22c It is necessary to form an axial gap equal to or longer than the length of the shaft portion 22c protruding from the pipe portion 22a so that the can be inserted into the pipe portion 21a. Therefore, in this example, the axial length of the pipe portion 22a or the pipe portion 21a is shorter than that shown in FIG. 5, and a gap is formed between the pipe portions 21a and 22a after assembly.
  • a shaft portion is also inserted between the pipe portion 22c side of the pipe portion 23a of the sill side mounting portion 23 inserted between the pipe portions 21a of the central plate portion 21 and the pipe portion 21a of the central plate portion 21.
  • An axial gap equal to or longer than the length of the shaft portion 23c protruding from the pipe portion 23a is formed so that the 23c can be inserted into the pipe portion 21a.
  • the partition member 20 is installed between the building 2 and the landing threshold 12, and when the mortar 30 is poured, if there is a possibility that the mortar 30 leaks from the gap into the hoistway 3, the gap is closed. It is preferable to provide the member on the partition member 20.
  • the bolt holes 22b and 23b provided in the building side mounting portion 22 and the sill side mounting portion 23 of the partition member 20 are formed in a circular shape, but as shown in FIG. 11, the building side is formed.
  • the mounting portion 22 and the sill-side mounting portion 23 may be formed into long holes that are long in the lateral direction (direction perpendicular to the axes 26 and 27).
  • FIG. 11 is a diagram for explaining still another example of the partition member 20, and is a diagram corresponding to FIG.
  • the hoistway wall 3a and the landing sill 12 are formed. Even if there are variations in the dimensions between them, the relative positions of the anchor bolts 24 and the bolt holes 22b, or the relative positions of the bolts 25 and the bolt holes 23b, depending on the dimensions between the hoistway wall 3a and the landing threshold 12.
  • the building side mounting portion 22 can be brought into close contact with the hoistway wall 3a, and the sill side mounting portion 23 can be brought into close contact with the landing sill 12. Therefore, even after the anchor bolts 24 are placed in the building 2, the building side mounting portion 22 can be fixed to the hoistway wall 3a and the sill side mounting portion 23 can be fixed to the landing sill 12. ..
  • the partition member 20 is always used regardless of the dimension between the hoistway wall 3a and the landing threshold 12.
  • the hoistway wall 3a and the landing threshold 12 can be brought into close contact with each other and fixed. Therefore, in the example shown in FIG. 11, it is possible to more easily and surely close the gap between the hoistway wall 3a and the landing threshold 12.
  • the building side mounting portion 22 of the partition member 20 is brought into close contact with the hoistway wall 3a and the sill side. Since the mounting portion 23 can be easily brought into close contact with the lower surface of the landing sill 12, the partition member 20 can close the gap between the hoistway wall 3a and the landing sill 12. Therefore, in order to finish the landing floor, the mortar 30 poured into the landing floor side of the landing threshold 12 is prevented from flowing into the hoistway 3 through the gap between the hoistway wall 3a and the landing threshold 12. Can be done.
  • the partition member 20 can be easily moved up and down. Since the gap between the road wall 3a and the landing threshold 12 can be closed, it is possible to prevent the partition member from traveling from the side surface of the landing threshold to the hoistway 3 side as in the conventional case.
  • the partition member 20 is composed of three pieces, the central plate portion 21, the building side mounting portion 22, and the sill side mounting portion 23, but the partition member 20 is formed by using a plurality of central plate portions 21. It may be composed of a total of four or more members.
  • the central plate portion 21 is not limited to a flat plate, and may be, for example, a corrugated plate.
  • the building side mounting portion 22 and the sill side mounting portion 23 are not limited to the rectangular plate material, and may be configured to have only the mounting portion leaving the peripheral portions of the bolt holes 22b and 23b. Further, in the above embodiment, as shown in FIGS.
  • the building side mounting portion 22 is fixed to the hoistway wall 3a, and the sill side mounting portion 23 is fixed to the lower surface of the landing sill 12. Is not limited to these locations, and the building-side mounting portion 22 may be fixed to the upper surface of the building 2, or the sill-side mounting portion 23 may be fixed to the side surface of the landing sill 12. Further, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations.

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  • Elevator Door Apparatuses (AREA)
PCT/JP2019/041129 2019-10-18 2019-10-18 エレベータの乗場敷居装置及びこれを備えたエレベータ装置 Ceased WO2021075053A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US17/769,351 US11866297B2 (en) 2019-10-18 2019-10-18 Elevator landing sill device and elevator device equipped with same
JP2021552080A JP7279181B2 (ja) 2019-10-18 2019-10-18 エレベータの乗場敷居装置及びこれを備えたエレベータ装置
CN201980101159.3A CN114585580B (zh) 2019-10-18 2019-10-18 电梯的门厅地坎装置以及具备其的电梯装置
PCT/JP2019/041129 WO2021075053A1 (ja) 2019-10-18 2019-10-18 エレベータの乗場敷居装置及びこれを備えたエレベータ装置
EP19948941.0A EP4046952B1 (en) 2019-10-18 2019-10-18 Elevator landing sill device and elevator device equipped with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/041129 WO2021075053A1 (ja) 2019-10-18 2019-10-18 エレベータの乗場敷居装置及びこれを備えたエレベータ装置

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Publication Number Publication Date
WO2021075053A1 true WO2021075053A1 (ja) 2021-04-22

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PCT/JP2019/041129 Ceased WO2021075053A1 (ja) 2019-10-18 2019-10-18 エレベータの乗場敷居装置及びこれを備えたエレベータ装置

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US (1) US11866297B2 (https=)
EP (1) EP4046952B1 (https=)
JP (1) JP7279181B2 (https=)
CN (1) CN114585580B (https=)
WO (1) WO2021075053A1 (https=)

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