Patent US5096182A successfully refreshed from Google Patents.
US5096182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut sheet holding and feeding apparatus
Assignee: Canon Inc
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Filing: 1991-09-06
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Granted: 1992-03-17
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Expires: 2011-09-06
Abstract
Abstract A cut sheet loading device in a cut sheet holding and containing device used in a recording apparatus such as a printer or a copying apparatus. The cut sheet holding and containing device has an intermediate plate supported for vertical movement for loading and holding cut sheets thereon, a separating pawl provided so as to bear against the leading end of the cut sheets loaded on the intermediate plate for separating the cut sheets one by one, and an openable-closable cover covering the cut sheets loaded on the intermediate plate. The cut sheets are loaded onto the intermediate plate with the rear side of the openable-closable cover being opened. The cut sheet holding and containing device features a guide member for guiding the leading end portion of the cut sheets to the inside of the separating pawl when the cut sheets are loaded which is projected when the openable-closable cover is opened, or during the opening of the openable-closable cover, the intermediate plate and side guide are retracted to their positions in which they do not hamper the loading of the cut sheets.
Inventors
- 👤 Makoto Kashimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:36
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/56; B41; B41J; B41J13/00; B41J13/10; B41J13/103; B65H1/00; B65H1/02; B65H1/022; B65H3/02; B65H3/06; B65H3/0661; B65H2405/00; B65H2405/30; B65H2405/33; B65H2405/331; B65H2405/3312; B65H2601/00; B65H2601/20; B65H2601/25; B65H2601/253; B65H2601/2531
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
162 words
A cut sheet feeding apparatus comprising: loading means provided on a main body of said feeding apparatus for loading cut sheets thereon; feeding means provided on the main body in a position opposing said loading means, said feeding out the cut sheets loaded on said loading means, said feeding means assuming constant position relative to the main body; a cover provided on the main body and being openable for allowing loading of the cut sheets on said loading means; a separation pawl provided on the main body for restraining leading edges of the cut sheets loaded on said loading means; and shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, in response to opening operation of said cover; wherein when the cut sheets are loaded on said loading means, said feed means guiding the cut sheets into a space between said loading means and said separation pawl.
Claim 2
Dependent Claim
162 words
A cut sheet feeding apparatus comprising: loading means provided on a main body of said feeding apparatus for loading cut sheets thereon; feeding means provided on the main body in a position opposing said loading means, said feeding out the cut sheets loaded on said loading means, said feeding means assuming constant position relative to the main body; a cover provided on the main body and being openable for allowing loading of the cut sheets on said loading means; a separation pawl provided on the main body for restraining leading edges of the cut sheets loaded on said loading means; and shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, in response to opening operation of said cover; wherein when the cut sheets are loaded on said loading means, said feed means guiding the cut sheets into a space between said loading means and said separation pawl.
Claim 3
Dependent Claim
18 words
A cut sheet feeding apparatus according to claim 1, further comprising a swingable arm supporting said separation pawl.
Claim 4
Dependent Claim
32 words
A cut sheet feeding apparatus according to claim 1, wherein said loading means is moved in a direction away from said separation pawl in association with the opening operation of said cover.
Claim 5
Dependent Claim
32 words
A cut sheet feeding apparatus according to claim 3, further comprising a swingable arm supporting said separation pawl, said arm moving said separation pawl in association with movement of said loading means.
Claim 6
Dependent Claim
133 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body in a fixed position opposing to said loading means, for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; and shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, wherein when the cut sheets are loaded on said loading means, said feeding means guiding the cut sheets to be loaded into a space between said loading means and said separation pawl.
Claim 7
Dependent Claim
133 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body in a fixed position opposing to said loading means, for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; and shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, wherein when the cut sheets are loaded on said loading means, said feeding means guiding the cut sheets to be loaded into a space between said loading means and said separation pawl.
Claim 8
Dependent Claim
22 words
A sheet feeding apparatus according to claim 5, wherein said feeding means includes a rotation member rotating in contact with the sheet.
Claim 9
Dependent Claim
17 words
A sheet feeding apparatus according to claim 5, further having a swingable arm supporting said separation pawl.
Claim 10
Dependent Claim
27 words
A sheet feeding apparatus according to claim 7, wherein said arm is hinged at an intermediate portion thereof and supports said separation pawl at one end thereof.
Claim 11
Dependent Claim
21 words
A sheet feeding apparatus according to claim 8, wherein said shifting means applies force to the other end of said arm.
Claim 12
Dependent Claim
165 words
A sheet feeding apparatus comprising: loading means movably supported on a main body of said feeding apparatus for loading sheets thereon; feeding means provided on the main body in a fixed position opposing to said loading means, for feeding out the cut sheets loaded on said loading means; pressing means for pressing the sheets loaded on said loading means toward said feeding means; a separation pawl supported on the main body movable for restraining leading edges of the sheets loaded on said loading means; an operation member; shifting means for causing to shift said loading means into a position away from said feeding means and to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, in response to operation of said operation member; wherein when the cut sheets are loaded on said loading means, said feed means guiding the cut sheets to be loaded into a space between said loading means and said separation pawl.
Claim 13
Dependent Claim
165 words
A sheet feeding apparatus comprising: loading means movably supported on a main body of said feeding apparatus for loading sheets thereon; feeding means provided on the main body in a fixed position opposing to said loading means, for feeding out the cut sheets loaded on said loading means; pressing means for pressing the sheets loaded on said loading means toward said feeding means; a separation pawl supported on the main body movable for restraining leading edges of the sheets loaded on said loading means; an operation member; shifting means for causing to shift said loading means into a position away from said feeding means and to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, in response to operation of said operation member; wherein when the cut sheets are loaded on said loading means, said feed means guiding the cut sheets to be loaded into a space between said loading means and said separation pawl.
Claim 14
Dependent Claim
22 words
A sheet feeding apparatus according to claim 10, wherein said feeding means includes a rotation member rotated in contact with the sheet.
Claim 15
Dependent Claim
23 words
A sheet feeding apparatus according to claim 10, wherein said pressing means includes a spring biasing said loading means toward said feeding means.
Claim 16
Dependent Claim
16 words
A sheet feeding apparatus according to claim 10, wherein said operation member includes an operation lever.
Claim 17
Dependent Claim
16 words
A sheet feeding apparatus according to claim 10, wherein said shifting means includes a cam member.
Claim 18
Dependent Claim
37 words
A sheet feeding apparatus according to claim 10, further having a rotation member supporting said separation pawl and engaging with said loading means to be rotated with movement of said loading means thereby moving said separation pawl.
Claim 19
Dependent Claim
170 words
A sheet feeding apparatus comprising: loading means movably supported on a main body of said feeding apparatus for loading sheets thereon; a feeding member provided on the main body in a fixed position opposing to said loading means for feeding out the cut sheets loaded on said loading member; a pressing member for pressing the cut sheets loaded on said loading member toward said feeding member; a separation pawl movably supported on the main body for restraining leading edges of the sheets mounted on said loading member; an operation member; and transmission means for transmitting motion of said operation member to said feeding member and loading member so that said loading member is shifted away from said feeding member and said separation pawl is shifted to a position more remote than said feeding member with respect to said loading member; wherein when the cut sheets are loaded on said loading means, said feeding member guiding the sheets to be guided into a space between said feeding member and loading member.
Claim 20
Dependent Claim
170 words
A sheet feeding apparatus comprising: loading means movably supported on a main body of said feeding apparatus for loading sheets thereon; a feeding member provided on the main body in a fixed position opposing to said loading means for feeding out the cut sheets loaded on said loading member; a pressing member for pressing the cut sheets loaded on said loading member toward said feeding member; a separation pawl movably supported on the main body for restraining leading edges of the sheets mounted on said loading member; an operation member; and transmission means for transmitting motion of said operation member to said feeding member and loading member so that said loading member is shifted away from said feeding member and said separation pawl is shifted to a position more remote than said feeding member with respect to said loading member; wherein when the cut sheets are loaded on said loading means, said feeding member guiding the sheets to be guided into a space between said feeding member and loading member.
Claim 21
Dependent Claim
168 words
An image forming apparatus, comprising: loading means movably supported on a main body of said image forming apparatus for loading sheets thereon; feeding means provided on the main body in a fixed position opposing to said loading means for feeding out the cut sheets loaded on said loading means; pressing means for pressing the sheets loaded on said loading member toward said feeding means; a separation pawl supported on the main body movably for restraining leading edges of the sheets loaded on said loading means; an operation member; shift means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, in response to operation of said operation member; and image forming means for forming images on the cut sheets fed by said feeding means; wherein when the cut sheets are loaded on said loading means, said feeding means guiding the cut sheets to be loaded into a space between said loading means and said separation pawl.
Claim 22
Dependent Claim
168 words
An image forming apparatus, comprising: loading means movably supported on a main body of said image forming apparatus for loading sheets thereon; feeding means provided on the main body in a fixed position opposing to said loading means for feeding out the cut sheets loaded on said loading means; pressing means for pressing the sheets loaded on said loading member toward said feeding means; a separation pawl supported on the main body movably for restraining leading edges of the sheets loaded on said loading means; an operation member; shift means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means, in response to operation of said operation member; and image forming means for forming images on the cut sheets fed by said feeding means; wherein when the cut sheets are loaded on said loading means, said feeding means guiding the cut sheets to be loaded into a space between said loading means and said separation pawl.
Claim 23
Dependent Claim
121 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; an arm supported rockably for supporting said separation pawl at one end thereof and engaging with said loading means at the other end thereof; and shifting means for applying force to the other end of said arm via said loading means to shift said separation pawl into a position away from said feeding means.
Claim 24
Dependent Claim
121 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; an arm supported rockably for supporting said separation pawl at one end thereof and engaging with said loading means at the other end thereof; and shifting means for applying force to the other end of said arm via said loading means to shift said separation pawl into a position away from said feeding means.
Claim 25
Dependent Claim
123 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; and shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; wherein when the sheets are loaded on said loading means, said feeding means is guiding the sheet to be loaded into a space between said loading means and said separation pawl.
Claim 26
Dependent Claim
123 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; and shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; wherein when the sheets are loaded on said loading means, said feeding means is guiding the sheet to be loaded into a space between said loading means and said separation pawl.
Claim 27
Dependent Claim
22 words
A sheet feeding apparatus according to claim 19, wherein said feeding means includes a rotation member rotating in contact with the sheet.
Claim 28
Dependent Claim
17 words
A sheet feeding apparatus according to claim 19, further having a swingable arm supporting said separation pawl.
Claim 29
Dependent Claim
27 words
A sheet feeding apparatus according to claim 21, wherein said arm is hinged at an intermediate portion thereof and supports said separation pawl at one end thereof.
Claim 30
Dependent Claim
21 words
A sheet feeding apparatus according to claim 22, wherein said shifting means applies force to the other end of said arm.
Claim 31
Dependent Claim
136 words
An image forming apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; image forming means for forming images on the sheets fed by said feeding apparatus; wherein when the sheets are loaded on said loading means, said feeding means is guiding the sheet to be loaded into a space between said loading means and said separation pawl.
Claim 32
Dependent Claim
136 words
An image forming apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; image forming means for forming images on the sheets fed by said feeding apparatus; wherein when the sheets are loaded on said loading means, said feeding means is guiding the sheet to be loaded into a space between said loading means and said separation pawl.
Claim 33
Dependent Claim
121 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; and guide means for guiding the sheets to be loaded into a space between said loading means and said separation pawl, when the sheets are loaded on said loading means.
Claim 34
Dependent Claim
121 words
A sheet feeding apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; and guide means for guiding the sheets to be loaded into a space between said loading means and said separation pawl, when the sheets are loaded on said loading means.
Claim 35
Dependent Claim
22 words
A sheet feeding apparatus according to claim 25, wherein said feeding means includes a rotation member rotating in contact with the sheet.
Claim 36
Dependent Claim
17 words
A sheet feeding apparatus according to claim 25, further having a swingable arm supporting said separation pawl.
Claim 37
Dependent Claim
27 words
A sheet feeding apparatus according to claim 27, wherein said arm is hinged at an intermediate portion thereof and supports said separation pawl at one end thereof.
Claim 38
Dependent Claim
21 words
A sheet feeding apparatus according to claim 28, wherein said shifting means applies force to the other end of said arm.
Claim 39
Dependent Claim
18 words
A sheet feeding apparatus according to claim 25, wherein said feeding means is shared with said guide means.
Claim 40
Dependent Claim
135 words
An image forming apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; guide means for guiding the sheets to be loaded into a space between said loading means and said separation pawl, when the sheets are loaded on said loading means; and image forming means for forming images on the sheets fed by said feeding means.
Claim 41
Dependent Claim
135 words
An image forming apparatus comprising: loading means attached to a main body of said feeding apparatus for loading sheets thereon; feeding means attached to the main body for feeding out the sheets loaded on said loading means; a separation pawl attached to the main body and normally disposed in operative relationship with said feeding means for restraining leading edges of the sheets loaded on said loading member; shifting means for causing to shift said separation pawl into a position more remote than said feeding means with respect to said loading means; guide means for guiding the sheets to be loaded into a space between said loading means and said separation pawl, when the sheets are loaded on said loading means; and image forming means for forming images on the sheets fed by said feeding means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |