| 摘要 |
<p>PURPOSE:To reduce the size and manufacturing cost by opposing a plurality of engaging protrusions, formed radially on the case, to an engaging step part formed along the peripheral direction of a guide. CONSTITUTION:The inner and outer plate parts 72 of a guide 21 are fitted slidingly, at the lower ends thereof, into groove parts 43a, 43b made in the lower plate part 41 of a stator 15. A plurality of engaging protrusions 38 protruding radially from the guide holding part 37 of an outer case 16 constituting a case 11 are opposed to an engaging step 76a formed along the peripheral direction of the guide 21. Consequently, backlash of the guide 21 is suppressed in the radial direction and the guide 21 is rotated smoothly at a fixed position. Since the guide 21 can be guided stably through engagement of the step part 76a and the protrusions 38, the depth of the grooves 43a, 43b in the lower plate part 41 can be decreased and thereby the size of cable reel can be reduced. Furthermore, manufacturing cost can be reduced because the engaging protrusions 38 can be provided easily by molding while facilitating correction of error in the dimension of protrusions.</p> |
