| 摘要 |
<p>PURPOSE:To make it possible to easily hold a portable electronic apparatus by a single hand and to stably use it. CONSTITUTION:When a knob part 19 is depressed, the projection part 25a of a lock spring 25 is protruded from a double hinge part 13 and engaged with a lock spring engaging part formed on a door part. When the depressed knob part 19 is slid. in the arrow L direction, a lock pin held by a lock pin holder 28 fixed to the knob part 19 is also slid in the allow L direction and one end part of the lock pin is engaged with a lock pin engaging part 29 formed on a spindle part 15a. Thereby the lock spring engaged with the lock spring engaging part prevents the rotation of the door part and the lock pin engaged with the eangaging part 29 prevents the rotation of the double hinge part 13.</p> |
