| 摘要 |
<p>An operation button device having a button unit (2) in which operation buttons (21-23) are arranged so as to be adjacent to each other in a united manner, in a row at predetermined intervals; an external cover panel (1) having button fitting holes (10) into which the operation buttons (21-23) are individually inserted; and a holder member (3) for holding the button unit (2) between itself and the external cover panel (1). Rectangular-frame-like installation/fitting frame sections (25, 27) are respectively formed integrally with intermediate hinge sections (24) that integrally connect the operation buttons (21-23) and with side hinge sections (26) that are integrally formed with side edge sections of the operation buttons (21, 23) located on both sides of the button unit (2). Rectangular rotation prevention projections (11, 12), in which the installation/fitting frame sections (25, 27) are fitted, are formed in either the external cover panel (1) or the holder member (3).</p> |
