Key inputting device and portable telephone having same

• Main Authors: MIYASAKI TETSUYA, OSAWA NORIAKI
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2004
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; PHYSICS; RELAYS; SELECTORS; TELEPHONIC COMMUNICATION

本发明提供一种键输入装置和一种便携式电话机，其中该键输入装置具有设置在片(41)上的杠杆式转换单元(4)和在片(41)上覆盖杠杆式转换单元(4)来设置的键橡胶(8)，在键橡胶(8)的表面上设置有压下杠杆式转换单元(4)的杠杆键(10)，杠杆式转换单元(4)包括基板、具有多个圆顶部的设置在基板上的圆顶片、和设置在该圆顶片上方的选择应压下的各圆顶部的摇动部件(6)，接受摇动部件(6)的按压后，一个圆顶部可弹性恢复地反转，形成于该圆顶部内表面的接触端子与形成于基板表面上的触点电极接触，闭合触点。根据该键输入装置，能够使装置薄型化，用较少的部件数量就能实现完全的防水。 A key input device embodying the present invention comprises a seesaw switch unit (4) installed on a sheet (41), and a key rubber (8) installed on the sheet (41) covering the seesaw switch unit (4). A seesaw key (10) is arranged on the surface of the key rubber (8) for depressing the seesaw switch unit (4). The seesaw switch unit (4) comprises a base plate, a dome sheet provided on a base plate having a plurality of dome portions, and a pivotally movable member 6 provided over the dome sheet to depress selectively each dome portion. The depression of the pivotally movable member 6 causes a dome portion to be elastically restorably invertable, to have a contact terminal formed on an inner surface of the dome portion into contact with a contact electrode formed on a surface of the base plate, closing contacts. With the key input device, the device can be made thinner, and the complete waterproof can be achieved with reduced number of components.