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Title:
POWDER CONVEYING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2007093824
Kind Code:
A
Abstract:

To provide a powder conveying device where there is no possibility that clogging by powder such as toner and interference with other components are not caused even when the length of a powder conveying member is varied.

In the powder conveying device 40 equipped with a powder conveying coil (powder conveying member) 35 constituted by forming plate material, for example, in spiral shape in a pipe (powder conveying path forming member) 41, and conveying the powder such as the toner through the pipe by rotating the powder conveying coil, a plate-like length regulation part 42 having a powder passing hole 43 in circular shape or the like is integrally provided at the downstream end of the pipe made by molding using polypropylene or the like, and the edge of the pipe formed to be freely elongated and contracted in a length direction is pressed against the length regulation part.


Inventors:
Kataoka, Chotaro
Yanagida, Masahito
Tanaka, Hideki
Tawada, Takaaki
Fujishiro, Takatsugu
Oojiya, Atsuya
Tabuchi, Takeshi
Harada, Hiroomi
Kumagai, Naohiro
Application Number:
JP2005000281105
Publication Date:
April 12, 2007
Filing Date:
September 28, 2005
Export Citation:
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Assignee:
RICOH CO LTD
International Classes:
G03G21/10; B65G33/14; B65G33/26
Domestic Patent References:
1992-12-17
1986-03-12
2003-07-25
2005-03-24
1999-08-10
1998-06-19