(19)
(11) EP 1 876 134 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.06.2012 Bulletin 2012/24

(43) Date of publication A2:
09.01.2008 Bulletin 2008/02

(21) Application number: 07013384.8

(22) Date of filing: 09.07.2007
(51) International Patent Classification (IPC): 
B66B 9/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 07.07.2006 JP 2006187341

(71) Applicant: Hitachi, Ltd.
Chiyoda-ku Tokyo 100-8280 (JP)

(72) Inventors:
  • Hagiwara, Takayuki c/o Hitachi, Ltd.
    Tokyo 100-8220 (JP)
  • Teramoto, Takashi c/o Hitachi, Ltd.
    Tokyo 100-8220 (JP)

(74) Representative: MERH-IP Matias Erny Reichl Hoffmann 
Paul-Heyse-Strasse 29
80336 München
80336 München (DE)

   


(54) Multi-car elevator


(57) At the present invention a multi-car elevator includes: an in-tower transmitter (5b) which generates a sound signal, the in-tower transmitter (5b) being provided on a measuring side of a first sound signal conductor (4a); an in-tower detector (6b) which detects the sound signal, the in-tower detector (6b) being provided on the measuring side of a second sound signal conductor (4b); on-car detectors (7a) provided on respective cars (1); and on-car transmitters (8a) provided on respective cars (1). The in-tower transmitter (5a) generates a call signal, the on-car transmitters (8a) generate the response signals to the second sound signal conductor (4b) after the call signal is detected by the on-car detectors to obtain positions of the respective cars (1).







Search report