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US4514740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet guide mechanism in a recording device
Assignee: Alps Alpine Co Ltd
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Filing: 1983-06-17
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Granted: 1985-04-30
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Expires: 2003-06-17
Abstract
Abstract A sheet guide mechanism in a recording device including a rotatable platen and a recording member opposed to the platen, comprising pressure rollers adapted to come into pressure contact with the platen for pressing down a recording sheet, and a guide plate extending from a lower portion of a recording side of the platen in a direction opposite to the recording side past below the platen, the guide plate having windows formed therein for avoiding the pressure rollers and guide pieces formed on edges in a sheet inserting direction of the windows, the guide pieces being bent in a direction away from the platen.
Inventors
- 👤 Mitsugu Fujiwara
- 👤 Yoshinori Sakaue
- 👤 Tomio Aso
- 👤 Koshiro Kurokawa
- 👤 Hideo Obara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:47
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
A sheet guide mechanism in a recording device including a rotatable platen having an inlet side for a recording sheet, a recording member opposed to a recording side of the platen, and pressure rollers adapted to come into pressure contact with said platen for pressing down a recording sheet, wherein said guide mechanism comprises a guide plate extending from said inlet side to a lower portion of said recording side of said platen below said platen, said guide plate having windows formed therein for bringing said pressure rollers into contact with said platen and recording sheet, and guide pieces formed on forward edges of said windows for guiding the recording sheet around said platen in a sheet inserting direction of said windows, said guide pieces being bent in a direction away from said platen.
Claim 2
Dependent Claim
134 words
A sheet guide mechanism in a recording device including a rotatable platen having an inlet side for a recording sheet, a recording member opposed to a recording side of the platen, and pressure rollers adapted to come into pressure contact with said platen for pressing down a recording sheet, wherein said guide mechanism comprises a guide plate extending from said inlet side to a lower portion of said recording side of said platen below said platen, said guide plate having windows formed therein for bringing said pressure rollers into contact with said platen and recording sheet, and guide pieces formed on forward edges of said windows for guiding the recording sheet around said platen in a sheet inserting direction of said windows, said guide pieces being bent in a direction away from said platen.
Claim 3
Dependent Claim
41 words
A sheet guide mechanism in a recording device according to claim 1, wherein said pressure rollers are each attached to a support member, said support member being urged to said platen side at all times by means of a spring member.
Claim 4
Dependent Claim
47 words
A sheet guide mechanism in a recording device according to claim 1, characterized by further including a lever member capable of moving said pressure rollers between a position where said pressure rollers abut said platen and a position where said pressure rollers are spaced from said platen.
Claim 5
Dependent Claim
41 words
A sheet guide mechanism in a recording device according to claim 1, wherein said guide pieces are formed in a tongue shape by bending portions of said guide plate from said forward edges of said windows curving away from said platen.
References Cited (Backward Citations)
US2978088A
Cited
US4405931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |