US 12,448,250 B2
Elevator renewal method
Hideaki Yuasa, Tokyo (JP); and Kazuya Izuta, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/439,809
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Apr. 26, 2019, PCT No. PCT/JP2019/017909
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2020/217449, PCT Pub. Date Oct. 29, 2020.
Prior Publication US 2022/0177277 A1, Jun. 9, 2022
Int. Cl. B66B 19/00 (2006.01)
CPC B66B 19/007 (2013.01) [B66B 19/005 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An elevator renewal construction method, comprising:
dividing, at a time of renewal of at least one device in an elevator, a process of the renewal into a series of divided construction work steps each determined as such a unit that the elevator is brought into a normally operable state in which a user can use the elevator after termination of each of the divided construction work steps; and
executing the renewal in accordance with the series of divided construction work steps,
wherein the elevator includes an existing hall device at each hall prior to the renewal,
wherein the elevator includes an existing car device in a car prior to the renewal,
wherein the elevator includes an existing control panel prior to the renewal,
wherein the series of the divided construction work steps includes a first divided construction work step, the first divided construction work step including the steps of:
installing a communication-enabled hall device at said each hall;
installing a communication-enabled car device in the car;
installing a communication relay device;
connecting the communication relay device and the existing control panel to each other;
connecting the communication relay device to each of the communication-enabled hall devices; and
connecting the communication relay device and the communication-enabled car device to each other, and
wherein, after termination of the first divided construction work step, the existing control panel is in a state of being communicable with the communication-enabled hall devices and the communication-enabled car device via the communication relay device and is in a state of being communicable with the existing hall devices and the existing car device.