(19)
(11) EP 0 768 500 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.04.2000 Bulletin 2000/14

(43) Date of publication A2:
16.04.1997 Bulletin 1997/16

(21) Application number: 96116274.0

(22) Date of filing: 10.10.1996
(51) International Patent Classification (IPC)7: F24F 13/08, F24F 13/28
(84) Designated Contracting States:
DE ES FR GB GR IT PT

(30) Priority: 13.10.1995 JP 29207595
25.12.1995 JP 35108595

(71) Applicant: SANYO ELECTRIC Co., Ltd.
Moriguchi-shi, Osaka (JP)

(72) Inventors:
  • Sakaino, Kazuaki
    Ora-gun, Gunma (JP)
  • Okawa, Kazunobu
    Ashikaga-shi, Tochigi (JP)
  • Nawata, Yukito
    Ota-shi, Gunma (JP)
  • Fukushima, Teiichi
    Ora-gun, Gunma (JP)
  • Niizato, Atsushi
    Ora-gun, Gunma (JP)
  • Arai, Kouji
    Ota-shi, Gunma (JP)
  • Osu, Shinichi
    Kiryu-shi, Gunma (JP)

(74) Representative: Glawe, Delfs, Moll & Partner 
Patentanwälte Postfach 26 01 62
80058 München
80058 München (DE)

   


(54) Elevation controller for air suction grille


(57) An in-ceiling mount type air conditioner (50) including an operation switch (51) for switching a power supply status of a power source to an elevating motor (140) for elevating an air suction grille (9), upper-limit position detectors (52,53) for detecting the upper-limit and lower-limit positions of the air suction grille (9) respectively, a forced stop detector for detecting the forced stop of the air suction grille, a timer (143) for counting a predetermined time from the actuation of the upper-limit position detector (52), and a controller for stopping the elevating motor (140) when the timer (143) counts the predetermined time after the air suction grille (9) reaches the upper-limit position and keeping the air suction grille (9) to stop when the forced stop of the air suction grille is detected by the forced stop detector.






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