JP2019167214A - Modification method of elevator - Google Patents

Abstract

To provide a modification method of an elevator by which an elevator device can be fixed to a beam while preventing hinderance of a space that can be used for installation of the elevator device in a hoistway.SOLUTION: The modification method of an elevator provided in a hoistway 14 adjacent to an elevator hall 15, includes a car removing step for removing a car unit 21 forming a loading space 24, a lifting unit removing step for removing a lifting unit 22 provided in the hoistway 14, and a door removing step for removing a door unit 23 provided between the elevator hall 15 and the hoistway 14. The door removing step is performed in the end of the above steps.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to an elevator repair method for repairing an elevator apparatus.

  In buildings, it is considered to provide an elevator device (for example, see Patent Document 1). In this elevator apparatus, a hoisting unit is provided in a hoistway provided in a building, and a door unit is provided between an elevator hall and a hoistway on each floor, and the elevator unit moves the car unit up and down in the hoistway. It is configured to be movable.

Japanese Patent Laid-Open No. 08-245112

  By the way, the elevator apparatus is modified for replacement or removal, for example. The renovation work may be performed while the residents are still using the building. Here, in the building, the hoistway in which the elevator apparatus is provided is a space extending up and down across each floor. Therefore, in renovation work, in order to ensure safety, the entry prevention process for preventing the entrance to the hoistway by closing the place where the door unit is provided, that is, between the elevator hall and the hoistway on each floor Need to do.

  The present disclosure has been made in view of the above circumstances, and an object thereof is to provide a method for repairing an elevator that can prevent entry into a hoistway without performing an entry prevention process for preventing entry into the hoistway. To do.

  In order to achieve the above-described object, the elevator repair method according to the present disclosure is an elevator repair method provided in a hoistway adjacent to an elevator hall, and a basket removal step of removing a cage unit that forms a loading space And the door removal step in the lifting and removing step of removing the lifting unit provided in the hoistway and the door removing step of removing the door unit provided between the elevator hall and the hoistway The process is performed last. Here, after the door removal step, a cage installation step for installing a new basket unit, a lifting installation step for installing a new lifting unit, and a door installation step for installing a new door unit. Among them, the door installation step can be performed first.

  Moreover, it is after performing the said cage removal process and the said raising / lowering removal process, Comprising: Before performing the said door removal process, it can decide to perform the exchange process which replaces | exchanges the structural member which comprises the said hoistway. Furthermore, after performing the door installation process, and before performing the basket installation process and the lifting / lowering installation process, an exchange process for exchanging components constituting the hoistway can be performed. When performing the said basket removal process and the said raising / lowering removal process, it can be set as the said door unit being fixed in the closed state. When performing the said cage installation process and the said raising / lowering installation process, it can be supposed that the said new door unit is being fixed in the closed state.

  The method for repairing an elevator according to the present disclosure configured as described above can prevent entry into the hoistway without performing an entry prevention process for preventing entry into the hoistway.

  Here, after the door removal step, a cage installation step for installing a new basket unit, a lifting installation step for installing a new lifting unit, and a door installation step for installing a new door unit. In the case where the door installation process is performed first, when a new elevator apparatus is installed, it is possible to enter the hoistway from the elevator hall on each floor with each new door unit without performing the entry prevention process. Can be prevented. Further, after performing the basket removing step and the lifting / removing step, and before performing the door removing step, if an exchange step for replacing the constituent members constituting the hoistway is performed, entry prevention is performed. Even if it does not perform a process, an exchange process can be performed in the state where there is nothing in a hoistway, preventing entry from each elevator hall to a hoistway with each door unit.

  Furthermore, after performing the door installation process and before performing the cage installation process and the lifting / lowering installation process, if an exchange process for exchanging components constituting the hoistway is performed, entry prevention is performed. Even if it does not perform a process, an exchange process can be performed in the state where there is nothing in a hoistway, preventing entry from each elevator hall to a hoistway with each door unit. When performing the said cage removal process and the said raising / lowering removal process, if it shall be fixed in the state which closed the said door unit, the approach to a hoistway from each elevator hall can be prevented more reliably. When performing the basket installation step and the lift installation step, if the new door unit is fixed in a closed state, entry from each elevator hall to the hoistway can be more reliably prevented.

It is explanatory drawing which shows the structure of the existing elevator apparatus renovated by the repair method of the elevator which concerns on this indication. It is explanatory drawing which shows a mode that the approach to a hoistway is prevented by each door unit after the basket removal process in the repair method of an elevator. It is explanatory drawing which shows a mode that the entrance to a hoistway is prevented by each door unit after the raising / lowering removal process in the repair method of an elevator. It is explanatory drawing which shows a mode that the door removal process in the repair method of an elevator is performed, and a mode that a door installation process is performed after that. It is explanatory drawing which shows a mode that the approach to a hoistway is prevented by each new door unit after the door installation process in the repair method of an elevator. It is explanatory drawing which shows a mode that the approach to a hoistway is prevented by each new door unit after the raising / lowering installation process in the repair method of an elevator. It is explanatory drawing which shows a mode that the new elevator apparatus was provided after the basket installation process in the repair method of an elevator. It is explanatory drawing which shows the specific example of the structural member exchanged in an exchange process. It is explanatory drawing which shows the roof auxiliary beam as an example of the structural member to replace | exchange. It is sectional drawing obtained along the II line | wire of FIG.

  Hereinafter, an elevator repair method according to Example 1 as an example of an elevator repair method according to the present disclosure will be described with reference to the drawings.

  The elevator repair method according to the first embodiment of the present disclosure will be described with reference to FIGS. 1 to 10. In the first embodiment, the elevator renovation method is applied to refurbishment for replacing the existing elevator apparatus 20 provided in the unit building 10 as an example with a new elevator apparatus 20A.

  As shown in FIG. 1, the unit building 10 is provided with a first-floor building unit 11 that forms a first-floor portion on a foundation, and a second-floor building unit 12 that forms a second-floor portion thereon. And a third-floor building unit 13 forming a third-floor portion is assembled thereon. Each building unit (11, 12, 13) is formed in advance in a factory and has a box shape, a floor frame that forms a floor surface of each room space, and a roof frame that forms a ceiling surface of each room space; Are connected by a pillar member extending in the vertical direction. The unit building 10 of the first embodiment is made up of three floors by the first floor building unit 11, the second floor building unit 12 and the third floor building unit 13, but the number of floors (the number to be assembled) can be appropriately set. Well, it is not limited to the configuration of the first embodiment.

  The floor frame is configured by laying a plurality of floor beams on the inside of a rectangular floor beam. In the floor frame, a part of the floor large beam and the floor beam are framed in a rectangular shape, and a rectangular hoistway opening is formed. The roof frame is configured by laying a plurality of roof auxiliary beams on the inside of a rectangular ceiling-shaped beam. In the roof frame, a part of the ceiling large beam and the roof auxiliary beam are framed in a rectangular shape to form a rectangular hoistway opening.

  In each building unit (11, 12, 13), the hoistway opening of the floor frame and the hoistway opening of the roof frame are opposed in the vertical direction, and the space extending in the vertical direction between the hoistway openings is raised and lowered. It is assumed to be a path 14. In the unit building 10, when the second-floor building unit 12 and the third-floor building unit 13 are assembled on the first-floor building unit 11, the hoistway openings are arranged in the vertical direction, and the building units (11, 12, 13) The hoistway 14 is continued in the vertical direction. An elevator device 20 is provided in the hoistway 14. Here, a ceiling material is attached to the uppermost part of the hoistway 14 of the third-floor building unit 13 that is the uppermost floor in the unit building 10, and the uppermost part of the hoistway 14 that continues vertically is shielded.

  In each building unit (11, 12, 13), a space adjacent to the hoistway 14 is an elevator hall 15, and a room, a staircase, a bus unit, and the like are provided in spaces provided on both sides of the hoistway 14 and the elevator hall 15. Installed as appropriate. For this reason, in the unit building 10, a part of a floor beam, a floor beam, a ceiling beam, a roof auxiliary beam that forms each hoistway opening, a column member that connects each hoistway opening in the vertical direction, and the like 14 functions as a constituent member 16 (see FIGS. 3 and 5).

  The existing elevator apparatus 20 provided in the unit building 10 includes a basket unit 21, an elevating unit 22, and a door unit 23. The basket unit 21 forms a loading space 24 on which a person gets in or a luggage or the like is placed. The cage unit 21 is configured by providing a cage-side door portion 26 that can be opened and closed at the cage portion 25, so that people can get on and off the loading space 24 and load and unload luggage. The basket unit 21 is moved up and down by the lifting unit 22.

  The elevating unit 22 is provided in the hoistway 14 in order to elevate the cage unit 21 in the hoistway 14. The elevating unit 22 includes a pair of guide rails 31, a support portion 32, a hydraulic jack 33, and a hydraulic device 34.

  The pair of guide rails 31 guide the movement of the support portion 32 in the vertical direction, and are provided in the hoistway 14 of each building unit (11, 12, 13) so as to face each other at a predetermined interval. . The rail brackets provided at the upper and lower ends of the pair of guide rails 31 are fixed to the constituent members 16 of the hoistway 14 (floor beams, floor beams, ceiling beams, roof auxiliary beams, etc.). When both building units (11, 12) are assembled, the pair of guide rails 31 are associated with both upper ends provided on the first-floor building unit 11 and both lower ends provided on the second-floor building unit 12. In this state, they are connected by a connecting member. In addition, when the two building units (12, 13) are assembled, the pair of guide rails 31 have both upper ends provided on the second-floor building unit 12 and both lower ends provided on the third-floor building unit 13. It is connected by a connecting member in a state of being brought together. Thereby, a pair of guide rail 31 is provided ranging over the three hoistway 14 continued up and down from the 1st floor to the 3rd floor.

  The support portion 32 is a place where the basket unit 21 is placed, and is provided on the pair of guide rails 31. The support portion 32 is provided on each guide rail 31 via a guide member that is configured as a guide roll or a guide shoe and is movable along each guide rail 31, and is vertically supported by the pair of guide rails 31. It can be moved. For this reason, the support portion 32 is fixed in a state where the cage unit 21 is placed, thereby enabling the cage unit 21 to move along the pair of guide rails 31.

  The hydraulic jack 33 is a driving means for vertically driving the support portion 32 that supports the cage unit 21, and is configured by retracting a plurality of rod-like portions combined from the outside to the inside so as to be extendable and retractable. Has been. The hydraulic jack 33 is attached to a stand 35 fixed to an elevator apparatus foundation provided in the hoistway 14 of the first floor building unit 11. The hydraulic jack 33 has a distal end portion fixed to the support portion 32. When driven, the hydraulic jack 33 moves the support unit 32 up and down to move the cage unit 21 up and down.

  The hydraulic device 34 expands and contracts the hydraulic jack 33 as appropriate by introducing hydraulic pressure to the hydraulic jack 33. For this reason, the lifting / lowering unit 22 appropriately lifts and lowers the cage unit 21 in the hoistway 14 via the support portion 32 when the hydraulic pressure from the hydraulic device 34 is introduced into the hydraulic jack 33.

  The door unit 23 constitutes a door provided on each building unit (11, 12, 13) side, and is provided between the hoistway 14 and the elevator hall 15. The door unit 23 is provided by being fixed to a floor beam, a roof auxiliary beam, or the like provided by dividing the hoistway 14 and the elevator hall 15. The door unit 23 includes a door 37 that can be opened and closed on the door frame portion 36. When the cage unit 21 stops at the number of floors on which the door unit 23 is provided, the door unit 23 interlocks with the cage door 26. Then, the building side door part 37 is opened and closed. Thereby, the door unit 23 can enter and exit the loading space 24 of the cage unit 21 while preventing the elevator unit 15 from entering the hoistway 14 from the elevator hall 15 (the space of each building unit (11, 12, 13)). To do.

  In the existing elevator apparatus 20, the car unit 21, the elevating unit 22, and the door unit 23 having the above-described configuration are connected to a control mechanism via cables or the like. In the elevator apparatus 20, the control mechanism interlocks each unit (21, 22, 23) in response to an operation on an operation panel provided on the cage part 25 of the cage unit 21 or the door frame part 36 of the door unit 23. With this, people and luggage can be carried to the desired floor.

  Note that a new elevator apparatus 20A (see FIG. 7 and the like) that is replaced from the existing elevator apparatus 20 is basically an existing elevator except that at least one of the size, the design, the loaded load, and the like is different. Since the configuration is the same as that of the apparatus 20, the same reference numerals are given to the portions having the same configuration, and detailed description thereof is omitted.

  Next, an elevator repair method will be described with reference to FIGS. In the elevator repair method according to the first embodiment, the existing elevator device 20 is removed from the hoistway 14, and a new elevator device 20 </ b> A is installed in the hoistway 14. Prior to this, in the unit building 10, the carry-out route of each part of the elevator apparatus 20 is cured. Each door unit 23 is basically fixed (locked) with the building-side door 37 closed. Moreover, in Example 1, in the elevator apparatus 20, the basket unit 21 is moved to the first floor in order to facilitate carrying out.

  First, a car removing process for removing the car unit 21 of the elevator apparatus 20 is performed. In the basket removing step, each part such as an operation panel provided in the basket portion 25 is removed, and various cables connected thereto are removed. Thereafter, in the basket removal step, the cage portion 25 and the cage side door portion 26 placed on the support portion 32 of the elevating unit 22 are disassembled. Each disassembled member opens the door unit 23 (building side door portion 37) of the first floor building unit 11 and carries it out of the hoistway 14. The door unit 23 is locked in the closed state as described above except when it is carried out. Thereby, as shown in FIG. 2, the cage unit 21 is removed from the elevator apparatus 20. In this basket removal process, since the door unit 23 of each floor is locked in a closed state except that the door unit 23 of the first floor building unit 11 is opened when each disassembled member is carried out, Even so, entry into the hoistway 14 from the elevator hall 15 is prevented.

  Next, the raising / lowering removal process which removes the raising / lowering unit 22 of the elevator apparatus 20 is performed. In the lifting / removing step, various switches, sensors, cables and the like provided in the hoistway 14 are removed, and the support portion 32 is disassembled and removed. Thereafter, the hydraulic device 34 is removed, the hydraulic jack 33 is disassembled and removed as appropriate, the pair of guide rails 31 is disassembled and removed, and the stand 35 is removed. Each removed member opens the door unit 23 of the first-floor building unit 11 and carries it out of the hoistway 14. The door unit 23 is locked in the closed state as described above except when it is carried out. Thereby, as for the elevator apparatus 20, as shown in FIG. 3, the raising / lowering unit 22 is removed. In this lifting / removal removal process, the door unit 23 of each floor is locked in a closed state except that the door unit 23 of the first floor building unit 11 is opened when each removed member is carried out. Even so, entry into the hoistway 14 from the elevator hall 15 is prevented. This is the same between the basket removing step and the lifting / lowering step.

  Next, an exchange process for exchanging the constituent members 16 constituting the hoistway 14 is performed. The replacement process is performed when the component member 16 constituting the hoistway 14 needs to be replaced. In the first embodiment, the door removal described later is performed after the basket removal process and the lift removal process. Performed before the process. This is because the cage unit 21 and the lifting unit 22 are removed from the hoistway 14 after the basket removing process and the lifting and removing process, and before the door removing process, the door unit 23 on each floor connects the hoistway 14 to the hoistway 14. Depending on the entry being prevented. This state is the same after the door installation process described later and before the lifting installation process and the basket installation process (see FIG. 5) except that each door unit 23 is changed to each door unit 23A. Therefore, an exchange process may be performed. The need for replacement means, for example, that it is necessary to adapt to changes in elevator installation standards due to legal revisions, or that the load capacity of the newly installed elevator device (20A) is larger than the existing one, etc. Conceivable. In the replacement process of the first embodiment, the large floor beam, the small floor beam, the large ceiling beam, and the roof auxiliary beam that form each hoistway opening are used as the constituent members 16 that constitute the hoistway 14, and a new elevator that accompanies legal revision Replace with a component 16A that meets the installation criteria.

  Next, as shown in FIG. 4, the door removal process which removes the door unit 23 of the elevator apparatus 20, and the door installation process which installs the door unit 23A of the new elevator apparatus 20A are performed. In the door removal step, a cable or the like of the door unit 23 provided between the elevator hall 15 and the hoistway 14 is removed, and the building side door portion 37 and the door frame portion 36 are appropriately disassembled and removed. As a result, the door unit 23 on each floor is locked in a closed state until the door removal process is completed after the elevating / removing process through the replacement process. The entry into the path 14 is prevented.

  Immediately after this door removal process, the process proceeds to the door installation process. In the door installation process, the building side door portion 37A and the door frame portion 36A are appropriately assembled between the elevator hall 15 and the hoistway 14 to install the door unit 23A, and a cable or the like is connected to the door unit 23A. This door removal process and door installation process are continuously performed by any one building unit (11, 12, 13) after being continuously performed by any one building unit (11, 12, 13). Suppose that it is performed continuously in the last building unit (11, 12, 13). Thereby, as shown in FIG. 5, the door unit 23A of the new elevator apparatus 20A is installed between the elevator hall 15 and the hoistway 14 of each building unit (11, 12, 13). For this reason, entering the hoistway 14 from the elevator hall 15 is prevented by each door unit 23A by completing the door installation process. The door units 23A on each floor are also locked in a closed state.

  Next, an elevating / lowering process for installing the elevating unit 22A (see FIG. 6 and the like) of the elevator apparatus 20A is performed. In the lifting / lowering process, a stand 35A (see FIG. 7) is installed in the hoistway 14, a pair of guide rails 31A (see FIG. 6 and the like) is installed, and a hydraulic jack 33A (see FIG. 6 and the like) is fixed to the stand 35A. Then, the hydraulic device 34A (see FIG. 7) is installed. Thereafter, in the lifting / lowering step, the support portion 32A (see FIG. 6 and the like) is fixed to the hydraulic jack 33A while being provided on the pair of guide rails 31A, and various switches, sensors, cables, and the like are provided in the hoistway 14. Each member to be installed is carried in from the hoistway 14 by opening the door unit 23 </ b> A of the first-floor building unit 11. The door unit 23A is locked in the closed state as described above except when it is carried out. Thereby, as shown in FIG. 6, the elevator apparatus 20 is provided with the lifting unit 22A.

  Next, a car installation process for installing the car unit 21A of the elevator apparatus 20A is performed. In the basket installation step, the elevator unit 22A is provided on the support portion 32A by assembling the cage portion 25A and the cage side door portion 26A on the support portion 32A in the hoistway 14. Thereafter, in the basket installation step, parts such as an operation panel are provided in the basket portion 25A, and various cables are connected to them. Each member to be assembled is carried in from the hoistway 14 by opening the door unit 23A of the first floor building unit 11. The door unit 23A is locked in the closed state as described above except when it is carried in. Thereby, as shown in FIG. 7, the elevator unit 20A is provided with the basket unit 21A. The door unit 23A on each floor is closed except that the door unit 23A of the first-floor building unit 11 is opened at the time of carrying in each member to be installed, from the door installation process to the elevator installation process to the end of the cage installation process. Since it is locked in the locked state, entry into the hoistway 14 from the elevator hall 15 is prevented at any floor. And the elevator apparatus 20A new in the hoistway 14 can be provided by completing a cage | basket installation process. A person or the like can be moved up and down on the basket unit 21A.

  Next, an example of the structural member 16 to be replaced in the replacement process will be described with reference to FIGS. In this example, as shown in FIG. 8, the roof frame 41 of each building unit (11, 12, 13) has a plurality of roof auxiliary beams 43 bridged over a rectangular ceiling frame 42. It is configured. The roof auxiliary beam 43 includes two roof auxiliary beams 44 that bridge the two large ceiling beams 42 in the vertical direction, and a roof auxiliary beam 45 that bridges the two roof auxiliary beams 44 in the horizontal direction. In the roof frame 41, a part of the two roof auxiliary beams 44, the roof auxiliary beam 45, and a part of the ceiling large beam 42 on the front side when viewed from the front in FIG. A shaped hoistway opening is formed.

  In each building unit (11, 12, 13), as described above, the hoistway 14 is provided between the hoistway opening of the roof frame 41 and the hoistway opening of the floor frame 46 opposed in the vertical direction. Elevator devices 20 and 20A are provided in the hoistway 14. In this example, the pair of guide rails 31 of the elevating unit 22 are fixed to the front roof auxiliary beam 44 (hereinafter also referred to as the roof auxiliary beam 441) of the two roof auxiliary beams 44 in the hoistway 14. . Accordingly, in the replacement process of this example, the roof auxiliary beam 441 to which the elevating unit 22 (the pair of guide rails 31) is fixed is replaced in order to match the change in the elevator installation standard due to the legal revision.

  9 and 10 show the roof auxiliary beam 441 as the component member 16A after being replaced. The roof auxiliary beam 441 includes a beam main body 51, end plates 52 provided at both ends thereof, and a mounting bracket 53 fixed to the beam main body 51. The beam main body 51 is formed by bending a long plate-like member made of a metal member, and has a U-shaped cross section (see FIG. 10). In the beam main body 51, a plurality of beam attachment holes 55 are provided in a bottom wall portion 54 that is a bottom in a U-shaped cross section. Each beam mounting hole 55 is provided to be fixed by a fastening member in a state where the end face of another beam is abutted against the bottom wall portion 54.

  The end plate 52 is made of a metal member and has a plate shape that closes both ends of the beam main body 51. Each end plate 52 can be directed to the ceiling girder 42 in a plane, and is provided with two beam mounting holes 56. Each beam mounting hole 56 is provided to fix each end plate 52 to the ceiling beam 42 with a fastening member.

  The mounting bracket 53 forms a portion to which a rail bracket provided on the pair of guide rails 31 is fixed. In this example, two mounting brackets 53 are provided in parallel. The mounting bracket 53 is configured by bending a plate-like member into an L-shaped cross section, and has a beam fixing plate portion 57 extending in the vertical direction and a device fixing plate portion 58 extending in the horizontal direction from the lower end thereof. For this reason, the beam fixing plate portion 57 and the device fixing plate portion 58 are provided adjacent to each other while their plate planes are orthogonal to each other.

  The beam fixing plate portion 57 is a portion that is fixed in a state where the surface is assigned to the side surface of the corresponding beam, and in this example, the beam main body portion in a state in which the long direction coincides with the direction in which the corresponding beam extends. It is fixed to the bottom wall 54 of 51 by welding. The device fixing plate portion 58 is a portion to which the pair of guide rails 31 (the rail brackets) of the elevating unit 22 are fixed, and four screw holes 59 are provided. Each screw hole 59 is a long long hole extending in a direction orthogonal to the long direction of the device fixing plate portion 58. The device fixing plate 58 is fixed to the rail bracket by being fastened by a fastening member that passes through the four screw holes 59 appropriately facing the screw holes provided in the rail bracket.

  The mounting bracket 53 is provided with reinforcing ribs 61 that connect the beam fixing plate portion 57 and the device fixing plate portion 58. The reinforcing rib 61 has a planar shape extending along a direction (normal direction) perpendicular to the plate planes of the beam fixing plate portion 57 and the device fixing plate portion 58, and the beam fixing plate portion 57 and the device fixing plate portion 58. It is fixed across the inner surface. The reinforcing ribs 61 are provided at two locations on both outer sides of the four screw holes 59 and are welded to the beam fixing plate portion 57 and the device fixing plate portion 58.

  The roof auxiliary beam 441 is preliminarily attached to the bottom wall portion 54 of the beam main body portion 51 by welding, and is carried in from the door unit 23 (23A) of the first-floor building unit 11 opened in the replacement process. Is done. The roof auxiliary beams 441 are fixed to the ceiling large beams 42 with fastening members using the beam mounting holes 56 in a state where the end plates 52 are respectively directed to the ceiling large beams 42, so that both the ceiling large beams 42 are connected. It is provided across the vertical direction (see FIG. 8). In the roof auxiliary beam 441, the mounting bracket 53 is fixed to a rail bracket provided on the pair of guide rails 31 using a screw hole 59. Thereby, the lifting unit 22 (the pair of guide rails 31) is fixed to the roof auxiliary beam 441 in the hoistway 14. In this way, the roof auxiliary beam 441 spans between the two ceiling beams 42, and each of the ceiling beams 42 is fastened with a fastening member using the beam mounting holes 56 of the end plates 52 provided at both ends. Since it can be fixed, it can be easily attached. In addition, if the roof auxiliary beam before replacement has the same configuration, the existing roof auxiliary beam can be easily removed.

  In this way, in the elevator repair method, when the elevator device 20 that has already been installed is removed, the door removal step is finally performed after the cage removal step and the lift removal step. Therefore, the elevator hall 15 reaches the last step. Each door unit 23 can be positioned between the hoistway 14 and the hoistway 14. Here, each door unit 23 is installed in advance as part of the elevator apparatus 20, and is provided so as to be able to open and close the entrance from the elevator hall 15 to the hoistway 14. For this reason, in the elevator renovation method, each door left to the end can be closed without performing the entry prevention process for closing the space between the elevator hall 15 and the hoistway 14 on each floor to prevent the hoistway 14 from entering. It is possible to prevent the unit 23 from entering the hoistway 14 from the elevator hall 15.

  Further, in the elevator refurbishment method, when installing a new elevator apparatus 20A following the removal of the existing elevator apparatus 20, the door installation process is first performed after the door removal process, and then the cage installation process and the lift installation are performed. Perform the process. For this reason, the elevator refurbishment method enters the hoistway 14 from the elevator hall 15 on each floor by each door unit 23A first installed between the elevator hall 15 and the hoistway 14 without performing an approach prevention step. Can be prevented. In particular, the elevator repair method according to the first embodiment performs the door installation process in the installation of the new elevator apparatus 20A immediately after the door removal process in the removal of the existing elevator apparatus 20. For this reason, the elevator repair method of Example 1 can extremely shorten the time when there is nothing between each elevator hall 15 and the hoistway 14 in the door removal process and the door installation process, and in the time when there is nothing. The entry to the hoistway 14 can be prevented by performing the removal or installation work.

  The elevator repair method according to an embodiment of the elevator repair method according to the present disclosure can obtain the following effects.

  The elevator refurbishment method performs the door removal step lastly among the cage removal step of removing the cage unit 21, the lift removal step of removing the lift unit 22, and the door removal step of removing the door unit 23. . For this reason, when the existing elevator apparatus 20 is removed, the elevator refurbishing method leaves each door unit 23 between the elevator hall 15 and the hoistway 14 to the end, so that the entrance prevention process is not performed. Also, each door unit 23 can prevent the elevator hall 15 on each floor from entering the hoistway 14.

  In addition, the elevator repair method is after the door removal process, in which a new car unit 21 is installed, a new elevator unit 22 is installed, and a new door unit 23 is installed. In the door installation process, the door installation process is performed first. For this reason, in the elevator refurbishment method, each door unit 23A is first installed between the elevator hall 15 and the hoistway 14 when installing a new elevator apparatus 20A. Each door unit 23A can prevent the elevator hall 15 on each floor from entering the hoistway 14.

  Furthermore, the elevator refurbishment method performs an exchange process for replacing the component member 16 constituting the hoistway 14 after the car removing process and the elevator removing process and before the door removing process. For this reason, the elevator refurbishing method is an exchange process in a state in which there is nothing in the hoistway 14 while preventing each door unit 23 from entering the hoistway 14 without performing the approach preventing process. It can be performed.

  In the elevator refurbishment method, after the door installation process is performed and before the car installation process and the lifting installation process are performed, an exchange process is performed in which the constituent members 16 constituting the hoistway 14 are replaced. For this reason, the elevator refurbishing method is an exchange process in a state in which there is nothing in the hoistway 14 while preventing the entrance from each elevator hole 15 to the hoistway 14 by each door unit 23A without performing an approach preventing process. It can be performed.

  In the elevator repair method, the door unit 23 is fixed in a closed state when the car removing process and the lifting / lowering process are performed. For this reason, the elevator repair method can more reliably prevent the elevator hall 15 from entering the hoistway 14.

  In the elevator refurbishment method, the new door unit 23A is fixed in a closed state when the car installation process and the lifting installation process are performed. For this reason, the elevator repair method can more reliably prevent the elevator hall 15 from entering the hoistway 14.

  Since the elevator repair method can prevent the entrance to the hoistway 14 from each elevator hall 15 by the door units 23 and 23A, the existing elevator apparatus 20 can be removed or renewed even if a resident or the like uses the unit building 10. The elevator apparatus such as the installation of the elevator apparatus 20A can be repaired safely without performing the approach prevention process.

  Therefore, the elevator repair method according to the first embodiment as the elevator repair method according to the present disclosure can prevent entry into the hoistway 14 without performing an entry prevention process that prevents entry into the hoistway 14.

  As described above, the elevator repair method of the present disclosure has been described based on the first embodiment. However, the specific configuration is not limited to the first embodiment, and the gist of the invention according to each claim of the claims is described. Unless it deviates, design changes and additions are allowed.

  For example, in Example 1, the unit building 10 comprised by the 1st-floor building unit 11, the 2nd-floor building unit 12, and the 3rd-floor building unit 13 is illustrated as a building to apply. However, the building to be applied may be one in which two building units (the hoistway 14) are stacked in the vertical direction as long as the hoistway 14 in which the elevator device (20, 20A) is provided extends in the vertical direction. Four or more building units (hoistway 14) may be stacked in the vertical direction, or may be a building having another configuration, and is not limited to the configuration of the first embodiment.

  Further, in the first embodiment, the example in which the hydraulic jack 33 is used as the driving unit for vertically driving the support portion 32 on which the basket unit 21 is placed in the lifting unit 22 has been described, but other examples may be used. It is not limited to the configuration. As another example, there is one in which a cage unit is hung up and down with a wire, and in this case, a driving means for winding and driving the wire is attached to a building unit on the lowest floor. This wire is suspended by attaching a pulley for hanging the wire to the top floor building unit, fixing one end of the wire to the car, and providing the other end of the wire hung on the pulley on the bottom floor building unit. It can be configured by attaching to the driving means.

  Further, in the first embodiment, the elevator repair method is such that the new elevator apparatus 20A is installed after the existing elevator apparatus 20 is removed, but the existing elevator apparatus 20 may be simply removed. In this case, for example, after the basket removing process and the lifting / removing process, a forming process is performed for forming the hoistway 14 of each building unit (11, 12, 13) along the purpose of use, and then the door removing process is performed. Thus, the entry from each elevator hole 15 to the hoistway 14 can be prevented by each door unit 23 as in the first embodiment until the work is completed. In line with the purpose of use, for example, when the hoistway 14 is used as a space for each floor, a floor is formed, and when a staircase is provided in the hoistway 14, a staircase is provided. .

  10 Unit Building (as an example of a building) 14 Hoistway 15 Elevator Hall 16 Component 21 Basket Unit 21A (New) Basket Unit 22 Lift Unit 22A (New) Lift Unit 23 Door Unit 23A (New) Door Unit 24 Loading space

Claims (6)

A method of repairing an elevator provided in a hoistway adjacent to an elevator hall,
A basket removal process for removing the basket unit forming the loading space;
Elevating and removing process for removing the elevating unit provided in the hoistway;
In the door removal process which removes the door unit provided between the said elevator hall and the said hoistway, the said door removal process is performed last, The repair method of the elevator characterized by the above-mentioned. After the door removal step,
A basket installation process for installing a new basket unit;
Lifting installation process to install a new lifting unit,
The method for repairing an elevator according to claim 1, wherein the door installation step is performed first in a door installation step of installing a new door unit.   2. After performing the said basket removal process and the said raising / lowering removal process, Comprising: Before performing the said door removal process, the replacement | exchange process which replaces | exchanges the structural member which comprises the said hoistway is performed. The elevator repair method according to claim 2.   3. After performing the said door installation process, and before performing the said cage installation process and the said raising / lowering installation process, the exchange process which replaces | exchanges the structural member which comprises the said hoistway is performed. The elevator repair method described.   The elevator repair according to any one of claims 1 to 4, wherein the door unit is fixed in a closed state when the basket removing step and the lifting / lowering step are performed. Method.   The elevator repair method according to claim 2 or 4, wherein the new door unit is fixed in a closed state when the basket installation step and the lift installation step are performed.