US 12,454,440 B2
Maintenance device and elevator device
Tomohiro Hattori, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 15/734,230
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jun. 14, 2018, PCT No. PCT/JP2018/022806
§ 371(c)(1), (2) Date Dec. 2, 2020,
PCT Pub. No. WO2019/239561, PCT Pub. Date Dec. 19, 2019.
Prior Publication US 2021/0214187 A1, Jul. 15, 2021
Int. Cl. B66B 5/00 (2006.01); B66B 1/34 (2006.01)
CPC B66B 5/0025 (2013.01) [B66B 1/3407 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A maintenance device comprising:
a plurality of clocks that each output time information; and
circuitry configured to:
select at least one of the plurality of clocks of the maintenance device as a clock to be used according to a content of elevator information; and
record the elevator information in a memory by adding time information from the selected clock to the elevator information, wherein the elevator information is received from control circuitry.