(19)
(11) EP 0 743 384 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.09.1997 Bulletin 1997/39

(43) Date of publication A2:
20.11.1996 Bulletin 1996/47

(21) Application number: 96104289.2

(22) Date of filing: 18.03.1996
(51) International Patent Classification (IPC)6: D03D 47/30
(84) Designated Contracting States:
BE CH DE IT LI

(30) Priority: 17.05.1995 JP 118642/95

(71) Applicant: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Aichi-ken (JP)

(72) Inventors:
  • Ban, Takashi, c/o Toyoda Jiddoshokki Seisakusho
    Kariya-shi, Aichi-ken (JP)
  • Hirose, Tatsuya, c/o Toyoda Jiddoshokki Seisakusho
    Kariya-shi, Aichi-ken (JP)
  • Suzuki, Hajime, c/o Toyoda Jiddoshokki Seisakusho
    Kariya-shi, Aichi-ken (JP)
  • Ishikawa, Hirohiko, Toyoda Jiddoshokki Seisakusho
    Kariya-shi, Aichi-ken (JP)

(74) Representative: Grams, Klaus Dieter, Dipl.-Ing. 
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München
80336 München (DE)

   


(54) Method for controlling use of compressed air in jet loom and compressed-air supply/control apparatus for the same


(57) Method and apparatus for properly controlling a status of use of compressed air in a jet loom. A compressed-air supply/control apparatus (5) includes a discharge flow rate determining circuit (6), an inverter (7) constituting a part of a discharge flow rate change-over means, a pulse motor (8) constituting another part of the discharge flow rate change-over means, an air compressor (9) of fixed capacity type, a pressure-responsive on/off switch (10) employed as a pressure detecting means and operation enable/disable decision circuit (14). The pressure-responsive on/off switch (10) serves to detect a pressure within a compressed air supplying passage (11) which extends from the air compressor (9) to the jet loom (1). The operation enable/disable decision circuit responds to an output of a period detecting circuit (15) to thereby issue an operation stop signal (S) to the loom control computer C0 when an on-state of the pressure-responsive on/off switch (10) continues for a period longer than a preset one.






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