| 摘要 |
<p>PURPOSE:To attain thin profile for the mechanism and to reduce the number of components by providing two rotation centers to one arm and providing a guide hole through which other rotation center shaft is penetrated to a reel chassis when the arm is rotated around one hole. CONSTITUTION:Guide pins 41, 42 are inserted to guide holes 43, 46 provided on a reel chassis and the movement is regulated by cam holes 44, 45 on a slide lever 47. Then the guide pin 41 is fixed by the cam hole 45 on the slide lever 47, while the cam hole 44 of the guide pin 42 is opened. Thus, the arm 40 receives a torque counter clockwise around the guide pin 41 and a pinch roller pressing force is obtained in an ideal direction. Since the arm 40 is moved by the cam hole on the slide lever 47 in this way, it is not required to use a torsion spring and then number of components is reduced. Moreover, the profile of the mechanism is made thin.</p> |
