发明名称 |
Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw |
摘要 |
A toner transport screw that is capable of maintaining a smooth and stable transport function. The toner transport screw, in which a helical blade is disposed on the circumference of a rotating shaft, has at least one spiral direction reversal part formed by connecting the respective ends of a first blade part and a second blade part, the directions of spiral of the first blade part and the second blade part being in opposite directions. A passage, which allows the toner to pass through the blades in the circumferential direction of the rotating shaft, is formed in the spiral direction reversal part. |
申请公布号 |
US8135313(B2) |
申请公布日期 |
2012.03.13 |
申请号 |
US20080338366 |
申请日期 |
2008.12.18 |
申请人 |
YOSHIDA TOMOFUMI;OOYOSHI HIROBUMI;TATSUMI KENZO;KUBOTA TOMOHIRO;SHIMIZU YOSHIYUKI;KAWAKAMI YOSHIHIRO;SAITO OSAMU;HAMADA MANABU;RICOH COMPANY, LTD. |
发明人 |
YOSHIDA TOMOFUMI;OOYOSHI HIROBUMI;TATSUMI KENZO;KUBOTA TOMOHIRO;SHIMIZU YOSHIYUKI;KAWAKAMI YOSHIHIRO;SAITO OSAMU;HAMADA MANABU |
分类号 |
G03G15/08 |
主分类号 |
G03G15/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|