| 摘要 |
PURPOSE:To obtain a compact and inexpensive driving unit in a mass production system with the facilitated assembly and disassembly, by assembling the driving unit with use of the elasticity and no screw for both a pulse motor and a biaxial speed regulating mechanism and then setting the driving unit into a main body chassis by means of the elasticity. CONSTITUTION:The framework of a driving unit 12 is constituted with an elastic frame 43 and a supporting frame 44 in one body by the resistance welding, etc. and then inserted by pushing and opening the opening side of the frame 43 after attaching a biaxial speed reducing gear 41 to a shaft 42. The unit 12 is attached to a main body chassis 2 in the following procedure. A hook 45 of the frame 44 is put into a square hole 46 of the chassis 2, and the unit 12 is turned toward an arrow mark. Then a T-shaped anchor 47 provided on the upper surface of the frame 43 is put into a T-shaped hole 48 to be hooked to the vertical hole part. In this case, an output gear 14 engages to an input gear of a recording paper feed mechanism. In such way, a compact and inexpensive driving unit is obtained in a mass production system with the facilitated assembly and disassembly. |
