| 摘要 |
PURPOSE:To make the repeating stress small and to remarkably prolong the service life of an engaging part by providing the mutual positions of the projections while keeping the ununiform length in the circumferential direction to form the clutch of an external tooth and forming the clutch of an internal tooth provided with the recess parts engaged with the respective projections of the clutch of the external tooth and providing both the clutch of the external tooth and the clutch of the internal tooth to the end parts of the adjacent driving shafts respectively to constitute the title coupling device. CONSTITUTION:The teeth of a spur-gear are provided to the circumferential direction in the end part of the lift side of the driving shaft 14 of a feed unit. Further a male-side clutch 15 of an external tooth has the projection parts wherein the several parts selected among the teeth of the spur-gear are projected to the axial direction. This clutch 15 is integrally fitted to the driving shaft 14. On the other hand, the spur-gears are provided to the inner circumferential face of the end part of the right side. A female-side clutch 16 of an internal tooth has the recesses wherein the several parts selected among the spurgears are cut. This clutch 16 is integrally fixed to the end part of the right side. Further both the clutch 15 and the clutch 16 of the adjacent following driving shaft of the unit are engaged to form a shaft joint. The feed driving shaft 14 becoming the driving source of the respective units, the driving shaft 25 of a printer unit and the driving shaft 35 of a slotter unit are mutually coupled in series. |
