Title:
【発明の名称】誤操作防止スイッチ装置及びスイッチ取込方法
Document Type and Number:
Japanese Patent JP2774292
Kind Code:
B2
Abstract:
PURPOSE:To prevent the misoperation of a switch, and at the same time to facilitate the operability thereof by giving a warning sound when the depression of the switch is still continued even after the passage of a limited time, and by refusing to take in a switch signal when the switch is depressed and subsequently released late from its depression within a delay time. CONSTITUTION:A switch signal S1 is continuously outputted after the passage of a delay time t1 and yet even after the further passage of a limited time T when a misoperation in having turned on the switch is not found or when there is not found the continuous on phase of the switch resulting from contacting another thing thereto. A switch control unit 2 in this case outputs a pulse-duration (T) confirmation signal S2 and its subsequent short pulse-doration signal S3 respectively, and then a buzzer control unit 3 entering both of the signals, S2 and S3 into itself outputs a buzzer drive signal S5 to a buzzer unit 4 which consequently notifies the presence of these signals by giving a buzzing sound. At the same time, the switch control unit 2 detecting an excess of the output duration of the confirmation signal S2 over the limited time T judges the switch to be misoperated for refusing to output an operation control signal S4. The switch signal S1 is thus prevented from being taken in an equipment unit 5 to prevent the occurrence of any misoperation.
Inventors:
Muraki Noya
Matsuoka Masashi
Yamato Taketo
Matsuoka Masashi
Yamato Taketo
Application Number:
JP31046288A
Publication Date:
July 09, 1998
Filing Date:
December 08, 1988
Export Citation:
Assignee:
Fukuda Electronics Co., Ltd.
International Classes:
A61B5/04; H01H9/00; H01H9/54; H03K17/94; H03K17/975; (IPC1-7): H01H9/54; A61B5/04; H01H9/00; H03K17/975
Domestic Patent References:
| JP62213415A | ||||
| JP6253526U |
Attorney, Agent or Firm:
Yasunori Otsuka (1 person outside)