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US 10,895,827 B2Granted
Developer conveyor having three blades
AssigneeRicoh Company, Ltd.
InventorsTatsuya Ohhira, Koichi Yamazaki, Hideo Yoshizawa, Takahiro Adachi
Life of this patent
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Abstract
A developer conveyor includes a shaft; a first blade helically wound around the shaft in a first direction, a second blade disposed away from an end of the first blade with a gap in a longitudinal axial direction of the developer conveyor and helically wound around the shaft in a second direction opposite the first direction, and a third blade helically wound around the shaft in the first direction at least at a position where the gap is formed.
Claims11
A developer conveyor, comprising:
- a shaft;
- a first blade helically wound around the shaft in a first direction;
- a second blade disposed away from an end of the first blade with a gap therebetween in a longitudinal axial direction of the developer conveyor, and helically wound around the shaft in a second direction opposite the first direction;
- and
- a third blade helically wound around the shaft in the first direction at least at a position where the gap is formed, wherein the third blade is disposed over an entirety of the gap in the longitudinal direction.
2 more elements
A developer conveyor, comprising:
- a shaft;
- a first blade helically wound around the shaft in a first direction:
- a second blade disposed away from an end of the first blade with a gap in a longitudinal axial direction of the developer conveyor and helically wound around the shaft in a second direction opposite the first direction;
- and
- a third blade helically wound around the shaft in the first direction at least at a position where the gap is formed,
- wherein the first blade and the third blade are wound in a double-start thread from end to end of the first blade in the longitudinal axial direction.
3 more elements
A developer conveyor, comprising:
- a shaft:
- a first blade helically wound around the shaft in a first direction;
- a second blade disposed away from an end of the first blade with a gap in a longitudinal axial direction of the developer conveyor and helically wound around the shaft in a second direction opposite the first direction;
- and
- a third blade helically wound around the shaft in the first direction at least at a position where the gap is formed,
- wherein a part of the second blade is coupled to the third blade.
3 more elements
A developer conveyor, comprising:
- a shaft:
- a first blade helically wound around the shaft in a first direction;
- a second blade disposed away from an end of the first blade with a gap in a longitudinal axial direction of the developer conveyor and helically wound around the shaft in a second direction opposite the first direction;
- and
- a third blade helically wound around the shaft in the first direction at least at a position where the gap is formed,
- wherein an end of the second blade on a side opposite a portion of the second blade facing the gap is closer to the gap than an end of the third blade on a side farther from the first blade in the longitudinal axial direction.
3 more elements
Dependencies are inferred from the claim text.