| 摘要 |
<p>PROBLEM TO BE SOLVED: To vary and fix the tilt angle with a small force and to make the device inexpensive, small-sized, and lightweight by providing a brake mechanism which fixes a rotary phase at an arbitrary phase position within a rotatable range, and placing a display part almost in rotary motion on a virtual center in front of a display screen. SOLUTION: Through the operation of a lever 52A which connects rotary arms 51A and 51B to a roller base 40A, the rotary arms 51A and 51B rotate on axes 62A and 62B in synchronism with the movement of a slider 30. Rollers 65A and 65B are restricted by cams 25A and 25B provided on a chassis 21, and the phases of the rotary arms 51A and 51B to a display part 1 and the phases of the rotary arms 41A and 51B to the chassis 21 are controlled into specific relation. The rotary phase of the display part 1, rotary arms 51A and 51B, and a pedestal parts is fixed at an arbitrary phase position within the rotatable range by controlling the length of an expanding/contracting rod 37 which controls the position of the slider 30 by a lock mechanism of an air spring.</p> |
