| 摘要 |
PURPOSE:To enable prompt fixing work by prohibiting a locking plate from turning, with a key for said locking plate fit in a key recess on fitting parts. CONSTITUTION:The end of a key 75, bent inwardly, is fit in screw holes 51, 51 of a sprocket 5. A locking plate 7 can be set by locating said locking plate 7 in the peripheral slot 35 of a spline shaft 3, with keys 75, 75 held horizontally, and then by turning the locking plate 7 in the direction of the peripheral slot 35 of the spline shaft 3 by 1/2 pitch of the spline shaft 3. Succeedingly, the keys 75, 75 are bent inwardly, with the ends thereof fit in screw holes 51, 51 of the sprocket 5. Therefore, the key for the locking plate in fit in the key recess on fitting parts, and prohibits the locking plate from turning, thereby enabling prompt fixing work. |
