| 摘要 |
<p>The main body of the operation section (1) comprises a holding portion (12) which can be gripped by a single hand, and a mounting surface (20) to which are mounted operating buttons (17, 18) depressed in the direction of the axes (03, 04) thereof. The operating buttons (17, 18) are aligned in the direction of the axis (O1) of the holding portion (12). The axis (03, 04) of each of the operating buttons (17, 18) makes an angle of more than 90° to 150° with the axis (O1) of the holding portion (12) as viewed from the holding portion (12). Also, the axes (03, 04) of the operating buttons (17, 18) get nearer toward the axis (O1) of the holding portion (12) and make an acute angle.</p> |
