| 摘要 |
<p>PURPOSE:To miniaturize the device and to securely transmit driving force and then to diminish variations of tape guide posts in set force by forming integrally holding parts for deciding accurately a position of the height of semi-annular spur gears and holding parts for deciding accurately the position in a radial direction of same. CONSTITUTION:The semi-annular spur gears 6 and 14 are used for transferring a tape guide, and the holding parts 31a, 31b, 32a and 32b formed integrally with holding members 31 and 32 and varied alternately in height in a staircase shape of two steps, and the holding parts 31c, 31e, 32c and 32d of inner circumferential and outer circumferential wall shapes are constituted for deciding accurately the position of the height and radial direction of these semi-annular spur gears 6 and 14. Thus, since two stepped stairs-like holding parts as far as the height is concerned, and the wall-like holding parts as far as the radial direction is concerned, are provided to be integrally formed, the device is miniaturized, ensuring the transmission of the driving force and also diminishing variations in the moving distance of the tape guide.</p> |
