(19)
(11) EP 0 376 409 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.01.1991 Bulletin 1991/05

(43) Date of publication A2:
04.07.1990 Bulletin 1990/27

(21) Application number: 89203333.3

(22) Date of filing: 27.12.1989
(51) International Patent Classification (IPC)5: G04G 15/00
(84) Designated Contracting States:
DE FR IT

(30) Priority: 29.12.1988 JP 331284/88
19.10.1989 JP 272457/89

(71) Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
Kadoma-shi Osaka 571 (JP)

(72) Inventors:
  • Muraoka, Shunkichi
    Neyagawa-shi Osaka 572 (JP)
  • Matsuda, Masanori
    Neyagawa-shi Osaka 572 (JP)

(74) Representative: Kupecz, Arpad et al
Octrooibureau Los en Stigter B.V. Postbox 20052
NL-1000 HB Amsterdam
NL-1000 HB Amsterdam (NL)


(56) References cited: : 
   
       


    (54) Time switch


    (57) A time switch is provided for operating a load (13) through an output control means (17) normally in accordance with a program preliminarily set by a program control means (14) and, as desired, setting a period for which the load (13) is to be placed either in ON or OFF state by a setting means (11) independent of the program control, during which period a timer means (16) counts the time of the set period as the period-setting is detected and provides an output to the output control means (17) for maintaining the ON or OFF state of the load (13), and upon termination of which period the output of the program control means (17) is provided again to the output control means (17), whereby the time switch can be turned ON or OFF temporarily for the desired period of time with a simpler operation.







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