Mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum of a process cartridge, such a flange, such a drum, and such a process cartridge
First Claim
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1. A mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum, comprising:
- a base plate;
a hole provided at a center portion of said base plate;
a plurality of first extensions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said flange when said mounting member is mounted to the flange;
a plurality of second extensions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said cylindrical member when said flange is mounted to said cylindrical member, wherein said second extensions project further outward than said first extensions.
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Accused Products
Abstract
A mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum, includes a base plate; a hole provided at a center portion of said base plate; a plurality of first projected portions provided projected outwardly from an edge of the base plate, for elastic contact to an inner surface of the flange; and a plurality of second projected portions provided projected outwardly from an edge of the base plate, for elastic contact to an inner surface of the flange.
159 Citations
76 Claims
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1. A mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum, comprising:
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a base plate;
a hole provided at a center portion of said base plate;
a plurality of first extensions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said flange when said mounting member is mounted to the flange;
a plurality of second extensions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said cylindrical member when said flange is mounted to said cylindrical member, wherein said second extensions project further outward than said first extensions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 16, 17, 18, 73)
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9. A mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum, comprising:
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a substantially circular base plate;
a hole provided at a center portion of said base plate, wherein when a electrophotographic photosensitive drum is mounted to a frame of a process cartridge, said hole receives a shaft for rotatably supporting said electrophotographic photosensitive drum;
a plurality of first extensions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said flange when said mounting member is mounted to the flange;
a plurality of second extensions projecting outwardly from the edge of said base plate, for elastic contact to an inner surface of said cylindrical member when said flange is mounted to said cylindrical member;
wherein said first extensions and said second extensions are alternately provided, and are extended radially, wherein said second extensions project further outward than said first extensions, and wherein said base plate, said first extensions and said second extensions are composed of metal. - View Dependent Claims (10, 11, 12)
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13. A flange assembly to be mounted to an end of an electrophotographic photosensitive drum, comprising:
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a. a flange having an engaging portion for engagement to an end of a cylindrical member of the electrophotographic photosensitive drum;
b. a mounting member which is mounted to said flange and which includes;
a base plate;
a hole provided at a center portion of said base plate;
a plurality of first extensions projecting outwardly from an edge of said base plate and elastically contacting an inner surface of said flange;
a plurality of second extensions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said cylindrical member when said flange assembly is mounted to said cylindrical member, wherein said second extensions are projected further outward than said first extensions. - View Dependent Claims (14, 15, 19, 20, 21, 22, 61, 64, 69, 74)
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23. A flange assembly to be mounted to an end of an electrophotographic photosensitive drum, comprising:
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a. a flange having an engaging portion for engagement to an end of a cylindrical member of the electrophotographic photosensitive drum, wherein said flange has a side which is opposed to an end surface of said cylindrical member when said flange assembly is mounted to said cylindrical member; and
b. a mounting member which is mounted to said flange and which includes;
a base plate;
a hole provided at a center portion of said base plate, wherein when a electrophotographic photosensitive drum is mounted to a frame of a process cartridge, said hole receives a shaft for rotatably supporting said electrophotographic photosensitive drum;
a plurality of first extensions projecting outwardly from an edge of said base plate and elastically contacting an inner surface of said flange;
a plurality of second projected portions projecting outwardly from an edge of said base plate, for elastic contact to an inner surface of said cylindrical member when said flange assembly is mounted to said cylindrical member;
wherein said first and second extensions are alternately provided, and are extended radially, wherein said second extensions project further outward than said first extensions, and wherein said base plate, said first and second extensions are composed of metal. - View Dependent Claims (24, 25, 26, 27, 65)
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28. An electrophotographic photosensitive drum for use with an electrophotographic image forming apparatus, comprising:
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a. a cylindrical member having a photosensitive layer on a peripheral surface thereof; and
b. a drum flange assembly which is engaged with an end of said cylindrical member and which includes;
a flange having an engaging portion engaged with the end of said cylindrical member;
a mounting member which is mounted to said flange and which includes;
a base plate;
a hole provided at a center portion of said base plate;
a plurality of first extensions projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said flange;
a plurality of second extensions projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said cylindrical member, wherein said second extensions project further outward than said first extensions. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 62, 66, 75, 76)
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39. An electrophotographic photosensitive drum for use with an electrophotographic image forming apparatus, comprising:
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a. a cylindrical member having a photosensitive layer on a peripheral surface thereof; and
b. a drum flange assembly which is engaged with an end of said cylindrical member and which includes;
a flange having an engaging portion engaged with the end of said cylindrical member of the electrophotographic photosensitive drum, wherein said flange has a side which is opposed to a side surface of said cylindrical member;
a mounting member, which includes;
a substantially circular base plate;
a hole provided at a center portion of said base plate, wherein when an electrophotographic photosensitive drum is mounted to a frame of a process cartridge, said hole receives a shaft for rotatably supporting said electrophotographic photosensitive drum on said frame;
a plurality of first extensions projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said flange;
a plurality of second extensions projecting outwardly from an edge of said base plate elastically contacted to an inner surface of said cylindrical member;
wherein said first and second extensions are alternately provided, and are extended radially, wherein said second extensions project further outward than said first extensions, and wherein said base plate and said first and second extensions are composed of metal. - View Dependent Claims (40, 41, 42, 43, 67)
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44. A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising:
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a. an electrophotographic photosensitive drum which includes;
a cylindrical member having a photosensitive layer on a peripheral surface thereof; and
a drum flange assembly which is engaged with an end of said cylindrical member and which includes;
flange having an engaging portion engaged with the end of said cylindrical member;
a mounting member mounted to said flange, said mounting member including;
a base plate;
a hole provided at a center portion of said base plate;
a plurality of first extensions projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said flange;
a plurality of second extensions projecting outwardly from an edge of said base plate elastically contacted to an inner surface of said cylindrical member wherein said second extensions project further outward than said first extensions; and
b. process means actable on said electrophotographic photosensitive drum. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 63)
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55. A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising:
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a. an electrophotographic photosensitive drum which includes;
a cylindrical member having a photosensitive layer on a peripheral surface thereof; and
a drum flange assembly which is engaged with an end of said cylindrical member and which includes;
a flange having an engaging portion engaged with the end of said cylindrical member, wherein said flange has a side which is opposed to a side surface of said cylindrical member;
a mounting member which is mounted on said flange, said mounting member including;
a substantially circular base plate;
a hole provided at a center portion of said base plate, wherein said hole receives a shaft for rotatably supporting said electrophotographic photosensitive drum on a frame of said process cartridge;
a plurality of first extensions projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said flange;
a plurality of second extensions projecting outwardly from an edge of said base plate elastically contacted to an inner surface of said cylindrical member;
wherein said first extensions and said second extensions are alternately provided, and are extended radially, wherein said second extensions project further outward than said first extensions, and wherein said base plate, said first extensions and said second extensions are composed of metal;
b. process means actable on said electrophotographic photosensitive drum. - View Dependent Claims (56, 57, 58, 59, 60, 68)
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70. A mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum, comprising:
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a circular metal base plate;
a hole provided at a center portion of said base plate, said hole receiving a shaft for rotatably supporting an electrophotographic photosensitive drum when the electrophotographic photosensitive drum is mounted to a frame of a process cartridge;
a plurality of mounting holes disposed around said hole provided at the center portion of said base plate to fix said mounting member to said flange;
a plurality of first extensions provided projected radially outward from an edge of said base plate and bent in a free state, for elastic contact to an inner surface of said flange when said mounting member is mounted to the flange;
a plurality of second extensions provided projected from an edge of said base plate radially outward more than the first extensions and bent in a free state in a different direction than the first extensions, for elastic contact to an inner surface of said cylindrical member when said flange is mounted to said cylindrical member, wherein said first extensions and said second extensions are alternately provided.
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71. An electrophotographic photosensitive drum for use with an electrophotographic image forming apparatus, comprising:
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a. a cylindrical member having a photosensitive layer on a peripheral surface thereof; and
b. a drum flange assembly which is engaged with an end of said cylindrical member and which includes;
a flange having an engaging portion engaged with the end of said cylindrical member of the electrophotographic photosensitive drum, wherein said flange has a side which is opposed to an end surface of said cylindrical member and is provided with a hole, through which a tool enters when said flange assembly is mounted to said cylindrical member;
a mounting member, which includes;
a substantially circular metal base plate;
a hole provided at a center portion of said base plate, wherein when an electrophotographic photosensitive drum is mounted to a frame of a process cartridge, said hole receives a shaft for rotatably supporting said electrophotographic photosensitive drum;
a plurality of mounting holes disposed around said hole provided at the center portion of said base plate to fix said mounting member to said flange;
a plurality of first extensions bent in a free state, provided projected outwardly from an edge of said base plate and elastically contacted to an inner surface of said flange; and
a plurality of second extensions bent in a free state in a different direction than the first extensions, projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said cylindrical member, wherein said first and second extensions are alternately provided, and are extended radially, wherein said second extensions project further outward than said first extensions, and wherein said base plate, and said first and second extensions are composed of metal.
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72. A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising:
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a. an electrophotographic photosensitive drum which includes;
a cylindrical member having a photosensitive layer on a peripheral surface thereof; and
a drum flange assembly which is engaged with an end of said cylindrical member and which includes;
a flange having an engaging portion engaged with the end of said cylindrical member, wherein said flange has a side provided with a hole through which a tool enters when said flange assembly is mounted to said cylindrical member, said side being opposed to an end surface of said cylindrical member;
a mounting member which is engaged with an end of said cylindrical member and which includes;
a substantially circular base plate;
a hole provided at a center portion of said base plate, wherein said hole receives a shaft for rotatably supporting said electrophotographic photosensitive drum on a cartridge frame;
a plurality of mounting holes disposed around said hole provided at a center portion of said base plate to fix said mounting member to said flange;
a plurality of first extensions bent in a free state, projecting outwardly from an edge of said base plate and elastically contacted to an inner surface of said flange;
a plurality of second extensions bent in a free state in a different direction than the first extensions, projecting outwardly from an edge of said base plate elastically contacted to an inner surface of said cylindrical member;
wherein said first and second extensions are alternately provided, and are extended radially, wherein said second extensions project further outward than said first extensions, and wherein said base plate, and said first and second extensions are composed of metal; and
b. process means actable on said electrophotographic photosensitive drum including at least one of a charging member for electrically charging said electrophotographic photosensitive drum a developing member for developing a latent image formed on said electrophotographic photosensitive drum and a cleaning member for removing residual toner from said electrophotographic photosensitive drum.
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Specification