US4772007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut sheet holding and feeding apparatus
Assignee: Canon Inc
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Filing: 1985-10-15
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Granted: 1988-09-20
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Expires: 2005-10-15
Abstract
Abstract This specification discloses 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 of the present invention has an intermediate plate supported for vertical movement and 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 and separating the cut sheets one by one, and an openable-closable cover covering the cut sheets loaded on the intermediate plate, the cut sheets being loaded onto the intermediate plate with the rear side of the openable-closable cover being opened, and is characterized in that 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 with the openable-closable cover being opened is projected 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
2026-11-07 08:40
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: 20
Claim 1
Independent Claim
63 words
A cut sheet holding device comprising: loading means for loading cut sheets thereon; an openable-closable cover covering the cut sheets loaded on said loading means; side guide means for guiding side edges of the cut sheets when said openable-closable cover is closed; and means for causing said side guide means to move away from the cut sheets when said openable-closable cover is opened.
Claim 2
Dependent Claim
63 words
A cut sheet holding device comprising: loading means for loading cut sheets thereon; an openable-closable cover covering the cut sheets loaded on said loading means; side guide means for guiding side edges of the cut sheets when said openable-closable cover is closed; and means for causing said side guide means to move away from the cut sheets when said openable-closable cover is opened.
Claim 3
Dependent Claim
39 words
A cut sheet holding and containing device according to claim 1 wherein pivotal movement of said openable-closable cover is converted into reciprocal rectilinear movement of said side guide means by the use of a cam and a cam follower.
Claim 4
Dependent Claim
42 words
A cut sheet holding and containing device according to claim 1 wherein said loading means is vertically movable and provision is made of an interlocking member for operatively associating the opening of said openable-closable cover with vertical movement of said loading means.
Claim 5
Dependent Claim
80 words
A cut sheet feeding apparatus comprising: loading means for loading cut sheets thereon; a rotating feed member for feeding the cut sheets; an openable-closable cover covering the cut sheets loaded on said loading means; and a guide member for guiding cut sheets introduced onto said loading means away from said rotating feed member, said guide member assuming a guide position when said cover is open, and assuming a non-guide position away from the cut sheets when said cover is closed.
Claim 6
Dependent Claim
80 words
A cut sheet feeding apparatus comprising: loading means for loading cut sheets thereon; a rotating feed member for feeding the cut sheets; an openable-closable cover covering the cut sheets loaded on said loading means; and a guide member for guiding cut sheets introduced onto said loading means away from said rotating feed member, said guide member assuming a guide position when said cover is open, and assuming a non-guide position away from the cut sheets when said cover is closed.
Claim 7
Dependent Claim
18 words
A cut sheet feeding apparatus according to claim 4, wherein said guide member is disposed on said cover.
Claim 8
Dependent Claim
30 words
A cut sheet feeding apparatus according to claim 4, wherein said feeding apparatus comprises means for causing said loading means to leave said rotating feed member upon opening said cover.
Claim 9
Dependent Claim
34 words
A cut sheet feeding apparatus according to claim 4, wherein said loading means is inclined in such a condition that the loaded cut sheets are fed from a bottom side of the loading means.
Claim 10
Dependent Claim
48 words
A cut sheet feeding apparatus according to claim 4, wherein said feeding apparatus comprises a side guide for restraining side edges of the cut sheets loaded on said loading means, and means for causing the side guide to be withdrawn from the cut sheets upon opening said cover.
Claim 11
Dependent Claim
78 words
A cut sheet holding apparatus comprising: loading means for loading cut sheets thereon; a separation pawl for restraining the cut sheets; an openable-closable cover covering the cut sheets loaded on said loading means; and a guide member for guiding cut sheets introduced onto said loading means away from said separation pawl, said guide member assuming a guide position when said cover is open, and assuming a non-guide position away from the cut sheets when said cover is closed.
Claim 12
Dependent Claim
78 words
A cut sheet holding apparatus comprising: loading means for loading cut sheets thereon; a separation pawl for restraining the cut sheets; an openable-closable cover covering the cut sheets loaded on said loading means; and a guide member for guiding cut sheets introduced onto said loading means away from said separation pawl, said guide member assuming a guide position when said cover is open, and assuming a non-guide position away from the cut sheets when said cover is closed.
Claim 13
Dependent Claim
18 words
A cut sheet holding apparatus according to claim 9, wherein said guide member is disposed on said cover.
Claim 14
Dependent Claim
30 words
A out sheet holding apparatus according to claim 9, wherein said feeding apparatus comprises means for causing said loading means to leave said separation pawl when said cover is opened.
Claim 15
Dependent Claim
34 words
A cut sheet holding apparatus according to claim 9, wherein said loading means is inclined in such a condition that the loaded cut sheets are fed from a bottom side of the loading means.
Claim 16
Dependent Claim
50 words
A cut sheet holding apparatus according to claim 9, wherein said feeding apparatus further comprises a side guide for restraining side edges of the cut sheets loaded on said loading means, and means for causing said side guide to move away from the cut sheets when said cover is opened.
Claim 17
Dependent Claim
99 words
A cut sheet feeding apparatus comprising: loading means for loading cut sheets thereon; a rotating feed member for feeding the cut sheets; separating means for restraining leading edges of the cut sheets loaded on said loading means; an openable-closable cover covering the cut sheets loaded on said loading means; and a guide member for guiding cut sheets introduced onto said loading means away from said rotating feed means and said separating means, said guide member assuming a guide position when said cover is open, and assuming a non-guide position away from the cut sheets when said cover is closed.
Claim 18
Dependent Claim
99 words
A cut sheet feeding apparatus comprising: loading means for loading cut sheets thereon; a rotating feed member for feeding the cut sheets; separating means for restraining leading edges of the cut sheets loaded on said loading means; an openable-closable cover covering the cut sheets loaded on said loading means; and a guide member for guiding cut sheets introduced onto said loading means away from said rotating feed means and said separating means, said guide member assuming a guide position when said cover is open, and assuming a non-guide position away from the cut sheets when said cover is closed.
Claim 19
Dependent Claim
25 words
A cut sheet feeding apparatus according to claim 14, wherein said separating means moves away from the cut sheets when said openable-closable cover is opened.
Claim 20
Dependent Claim
25 words
A cut sheet feeding apparatus according to claim 14, wherein said loading means moves away from said separating means when said openable-closable cover is opened.
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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) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |