| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner conveying device that can easily couple a spring spiral and an input shaft together in a short time and is increased in rotational strength and drawing strength by rotation of the input shaft. SOLUTION: The toner conveying device includes a pipe for toner conveyance including a linear part whose conveying direction is linear and a curved part whose conveying direction can smoothly be changed and the spring spiral 20 which is inscribed in the pipe to be rotated, and the spring spiral 20 comprises a spiral body 22 formed by forming a wire material in a spiral shape and the input shaft 21 coupling the spiral body 22 to a motor. The input shaft 21 has a male screw 27 that a base end 23 of the spiral body 22 threadably engages and an abutment part 26 which receives a base end 28 of the spiral body 22 threadably engaged with the male screw 27, and the spiral body is threadably engaged with the male screw 27 until it is received by the abutment part. COPYRIGHT: (C)2008,JPO&INPIT |
