US 12,391,517 B2
Elevator
Akira Nagao, Tokyo (JP); Yanming Jin, Tokyo (JP); and Takuya Osawa, Tokyo (JP)
Assigned to HITACHI, LTD., Tokyo (JP)
Appl. No. 17/273,802
Filed by Hitachi, Ltd., Tokyo (JP)
PCT Filed Sep. 6, 2018, PCT No. PCT/JP2018/033056
§ 371(c)(1), (2) Date Mar. 5, 2021,
PCT Pub. No. WO2020/049689, PCT Pub. Date Mar. 12, 2020.
Prior Publication US 2021/0206599 A1, Jul. 8, 2021
Int. Cl. B66B 3/00 (2006.01); H04B 5/00 (2024.01); H04B 5/24 (2024.01); H04R 25/00 (2006.01)
CPC B66B 3/002 (2013.01) [H04B 5/24 (2024.01); H04R 25/554 (2013.01); H04R 25/558 (2013.01); H04R 2225/51 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An elevator comprising:
an amplifier to amplify an acoustic signal for transmitting information to an elevator user and output the amplified signal; and
an induction loop provided with looped electric wires through which current output from the amplifier flows to generate a magnetic field,
wherein the induction loop is arranged such that a plurality of wire harnesses are electrically connected to one another;
the plurality of wire harnesses are electrically connected to one another by a plurality of connectors, which the respective wire harnesses have, coupled to one another; and
the plurality of wire harnesses includes:
a first wire harness branched into a first connection line to the amplifier, a second connection line to a winding start of the induction loop, and a third connection line to a winding end of the induction loop and having a first connector which is electrically connected to the first connection line, a second connector which is electrically connected to the second connection line, and a third connector which is electrically connected to the third connection line; and
an elongated second wire harness which forms at least a part of the looped electric wires and has a fourth connector at one end and a fifth connector at another end.