Developer conveying device, and developing device and image forming apparatus provided with same

Patent metadata

Field	Value
Publication number	US-9075342-B2
Application number	US-201313938525-A
Country	US
Kind code	B2
Filing date	Jul 10, 2013
Priority date	Jul 19, 2012
Publication date	Jul 7, 2015
Grant date	Jul 7, 2015

Abstract

A developer conveying device includes a housing with a pair of wall portions, a developer conveyance path extending between the pair of wall portions, and a conveying member. The conveying member is rotatably supported on the wall portions and conveys developer from one wall portion to the other. This conveying member includes a spiral member, shaft portions and a breaking member. The spiral member is formed by connecting spiral pieces, each forming one spiral turn, in a conveying direction of the developer and includes a hollow interior defined by the connected spiral pieces. The shaft portions are arranged at opposite end parts of the spiral member and rotatably supported on the wall portions and serve as a rotary shaft for the rotation of the conveying member. The breaking member extends across the hollow interior in a direction intersecting with the conveying direction.

First claim

What is claimed is:

1. A developer conveying device, comprising:
a housing with first and second walls;
a developer conveyance path extending between the walls; and
a conveying member rotatably supported on the walls and configured to convey developer from the first wall to the second wall, the conveying member including:
a spiral member having opposite first and second ends spaced apart in a conveying direction of the developer and including plural spiral revolutions, a hol…

Assignees

• Kyocera Document Solutions Inc

Inventors

• Kuramashi Koji

Classifications

• G03G15/0893 Primary

  Physics · mapped topic

• G03G15/0877

  Physics · mapped topic

• G03G2215/0838

  Physics · mapped topic

• G03G2215/0833

  Physics · mapped topic

• G03G15/0839 Primary

  Physics · mapped topic