Feeding device, cleaning device, developing device, process cartridge, and image forming apparatus
First Claim
1. A feeding device for feeding a developer, comprising:
- an accommodating member for accommodating the developer;
a first helical feeding member provided rotatably in said accommodating member and including a first region having a first diameter and a second region having a second diameter smaller than the first diameter in a named order with respect to a first feeding direction in which the developer is fed;
a second helical feeding member, provided rotatably in said accommodating member, for feeding the developer in a second feeding direction crossing the first feeding direction; and
a wall provided in said accommodating member and extending toward said second helical feeding member so that said wall is spaced from said first helical feeding member toward a downstream side of said first helical feeding member with respect to the first feeding direction to branch a flow path of the developer,wherein with respect to the first feeding direction, the second region is provided between the first region and a position where said first and second helical feeding members cross each other.
1 Assignment
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Accused Products
Abstract
A feeding device for feeding a developer includes an accommodating member, a first helical feeding member including a first region having a first diameter and a second region having a second diameter smaller than the first diameter in a named order with respect to a first feeding direction, a second helical feeding member for feeding the developer in a second feeding direction crossing the first feeding direction, and a wall extending toward the second helical feeding member so that the wall is spaced from the first helical feeding member toward a downstream side of the first helical feeding member with respect to the first feeding direction to branch a flow path of the developer. With respect to the first feeding direction, the second region is provided between the first region and a position where the first and second helical feeding members cross each other.
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Citations
25 Claims
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1. A feeding device for feeding a developer, comprising:
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an accommodating member for accommodating the developer; a first helical feeding member provided rotatably in said accommodating member and including a first region having a first diameter and a second region having a second diameter smaller than the first diameter in a named order with respect to a first feeding direction in which the developer is fed; a second helical feeding member, provided rotatably in said accommodating member, for feeding the developer in a second feeding direction crossing the first feeding direction; and a wall provided in said accommodating member and extending toward said second helical feeding member so that said wall is spaced from said first helical feeding member toward a downstream side of said first helical feeding member with respect to the first feeding direction to branch a flow path of the developer, wherein with respect to the first feeding direction, the second region is provided between the first region and a position where said first and second helical feeding members cross each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A feeding device for feeding a developer, comprising:
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an accommodating member for accommodating the developer; a first feeding member provided rotatably in said accommodating member and including a first region having a helical shape, a second region having a crank shape and a third region having a helical shape in a named order with respect to a rotational axis direction; and a second feeding member supported in the second region and reciprocating in a direction crossing the rotational axis direction by rotational motion of said first feeding member. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification