| 摘要 |
<p>PURPOSE:To obtain good timing for opening a lid body and to diminish operational variations between devices concerned and yet to stabilize and maintain their performance and then to improve the reliability. CONSTITUTION:A front surface of a case body 1 is formed with a horizontal, long and slender cassette insert hole 1a. The lid body 10 having a turning shaft on an upper side of the cassette insert hole 1a is capable of freely opening and closing the cassette insert hole 1a. A base end part is integrated with an inner surface near the turning shaft on the inner side of the lid body 10, and an elastic restraining piece 12 provided with a tip part extending parallel to the inner surface is provided by mold forming. This elastic restraining piece 12 is connected with its one end side to a mode cam provided on a side surface of the case body, and the other end part is driven by a driving lever 14 to be turned in engagement with the elastic restraining piece, whereas the lid body is set to be driven to open and close in an overstroke due to elasticity of the elastic restraining piece.</p> |
