| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a projector whose exhaust port is opened/closed smoothly while suppressing driving force. <P>SOLUTION: The projector includes an exterior housing having the exhaust port, blades 81 that rotationally moves to opening positions for opening the exhaust port or closing positions for closing the exhaust port, and a driving mechanism 9 for rotating the blades 81. The driving mechanism 9 includes a cam plate 91 that rotationally moves the blades 81 to the opening positions or closing positions by linearly moving. The blades 81 includes a cam pin 83 that engages with the cam plate 91. The positions of the cam pin 83 at the opening position and closing position includes a rotational axis (A) and are mutually opposite to each other with respect to a virtual plane being perpendicular to the moving direction of the cam plate 91. <P>COPYRIGHT: (C)2012,JPO&INPIT |
