(19)
(11) EP 1 387 375 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.04.2005 Bulletin 2005/16

(43) Date of publication A2:
04.02.2004 Bulletin 2004/06

(21) Application number: 03017393.4

(22) Date of filing: 31.07.2003
(51) International Patent Classification (IPC)7H01H 13/70
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 02.08.2002 JP 2002226107

(71) Applicant: ALPS ELECTRIC CO., LTD.
Tokyo 145-8501 (JP)

(72) Inventors:
  • Iwakuma, Harumi
    Ota-ku, Tokyo 145-8501 (JP)
  • Hakozaki, Takeshi
    Ota-ku, Tokyo 145-8501 (JP)
  • Miike, Teruhisa
    Ota-ku, Tokyo 145-8501 (JP)

(74) Representative: Klunker . Schmitt-Nilson . Hirsch 
Winzererstrasse 106
80797 München
80797 München (DE)

   


(54) Push button switch structure


(57) The present invention comprises fixed contacts buried in a housing, a first reversing spring made of metal, which is a movable contact accessible to the fixed contact, and a second reversing spring made of a rubber material for giving a pressing force to reverse the first reversing spring. In addition, a gap dimension for reversing the first reversing spring and the second reversing spring nearly simultaneously is provided between a top of the first reversing spring and a press section of the second reversing spring.







Search report