US3814015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing machine with a roller platen releasing device
Assignee: Janome Corp
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Filing: 1972-03-01
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Granted: 1974-06-04
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Expires: 1992-03-01
Abstract
Abstract A carriage supporting a roller platen frame is manually moved in a printing stroke and in a return stroke over type wheels on a printing bed. A releasing lever, resiliently connected with the roller platen frame, shifts the same between a printing position and an inoperative position when engaged and displaced by fixed actuating blocks during the carriage movements. A biased holding lever arrests the roller platen frame in either position. The resilient connection between the releasing lever and the roller platen frame, preferably including abutting slide faces, permits movement of the yielding releasing lever over the actuating blocks after the frame has been placed in the printing position or the inoperative position.
Inventors
- 👤 Y Ozaki
- 👤 F Mishima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:14
CPC Classifications
B; B41; B41L; B41L45/00; B41L45/02; B41L19/00; B41L47/00; B41L47/02; B41L47/04; B41L47/14; B41L47/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
377 words
A printing machine with a roller platen releasing device, comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame mounted on said carriage means for angular movement, and a roller platen having a follower projection and mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position For bassing said type means by; holding means for arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke; shifting means including releasing means turnably mounted on said frame and having a contact face, connecting means mounted on said carriage means and having an other contact face slidingly abutting said contact face, and a spring connecting a portion of said connecting means with said frame; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions during said printing and return strokes of said carriage means when engaging the respective actuating block, and causes through said abutting contact faces and said connecting means turning of said frame between said printing and retracted positions, said holding means blocking said frame in said printing and retracted positions so that said slidingly abutting contact faces and said releasing means and connecting means moved relative to each other when said releasing means passes over the respective actuating block after shifting said frame to one of the blocked positions thereof; said holding means including a holding lever mounted on said carriage means for angular movement and having a cam face with a dwell separating two depressed portions cooperating with said follower projection, and a spring biasing said holding lever toward said follower portion so that shifting of said releasing means and of said frame places said projection in one of said depressed portions whereby said frame is yieldingly arrested in said printing position and in said retracted position, respectively.
Claim 2
Dependent Claim
377 words
A printing machine with a roller platen releasing device, comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame mounted on said carriage means for angular movement, and a roller platen having a follower projection and mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position For bassing said type means by; holding means for arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke; shifting means including releasing means turnably mounted on said frame and having a contact face, connecting means mounted on said carriage means and having an other contact face slidingly abutting said contact face, and a spring connecting a portion of said connecting means with said frame; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions during said printing and return strokes of said carriage means when engaging the respective actuating block, and causes through said abutting contact faces and said connecting means turning of said frame between said printing and retracted positions, said holding means blocking said frame in said printing and retracted positions so that said slidingly abutting contact faces and said releasing means and connecting means moved relative to each other when said releasing means passes over the respective actuating block after shifting said frame to one of the blocked positions thereof; said holding means including a holding lever mounted on said carriage means for angular movement and having a cam face with a dwell separating two depressed portions cooperating with said follower projection, and a spring biasing said holding lever toward said follower portion so that shifting of said releasing means and of said frame places said projection in one of said depressed portions whereby said frame is yieldingly arrested in said printing position and in said retracted position, respectively.
Claim 3
Dependent Claim
67 words
Printing machine as claimed in claim 1, wherein said spring of said resilient connecting means is stronger than said spring of said holding lever so that said spring of said holding lever yields when said releasing means turns said frame between said printing and retracted positions; wherein said follower projection is part of a pin; and wherein said releasing means is a lever mounted on said pin.
Claim 4
Dependent Claim
40 words
Printing machine as claimed in claim 1, wherein said spring of said holding means is tensioned in a dead center position when said follower projection engages said dwell so that said frame tends to assume one of said positions thereof.
Claim 5
Dependent Claim
356 words
A printing machine with a roller platen releasing device, comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame having a follower projection and mounted on said carriage means for angular movement, and a roller platen mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for passing said type means by; resilient holding means for yieldingly arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke, shifting means including releasing means mounted on said frame, and resilient connecting means connecting said releasing means with said carriage so that turning of said releasing means in opposite directions causes turning of said frame between said printing and retracted positions; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions during said printing and return strokes when engaging the respective leading actuating block and turns said roller platen frame between said printing and retracted positions; said holding means including a holding lever moUnted on said carriage means for angular movement and having a cam face with a dwell separating two depressed portions cooperating with said follower projection, and a spring biasing said holding lever toward said follower portion so that shifting of said releasing means and of said frame places said projection in one of said depressed portions whereby said frame is yieldingly arrested in said printing position and in said retracted position, respectively, said spring being tensioned in a dead center position when said follower projection engages said dwell so that said frame is biased in a dead center position when said follower projection engages said dwell so that said frame is biased to assume one of said positions.
Claim 6
Dependent Claim
356 words
A printing machine with a roller platen releasing device, comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame having a follower projection and mounted on said carriage means for angular movement, and a roller platen mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for passing said type means by; resilient holding means for yieldingly arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke, shifting means including releasing means mounted on said frame, and resilient connecting means connecting said releasing means with said carriage so that turning of said releasing means in opposite directions causes turning of said frame between said printing and retracted positions; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions during said printing and return strokes when engaging the respective leading actuating block and turns said roller platen frame between said printing and retracted positions; said holding means including a holding lever moUnted on said carriage means for angular movement and having a cam face with a dwell separating two depressed portions cooperating with said follower projection, and a spring biasing said holding lever toward said follower portion so that shifting of said releasing means and of said frame places said projection in one of said depressed portions whereby said frame is yieldingly arrested in said printing position and in said retracted position, respectively, said spring being tensioned in a dead center position when said follower projection engages said dwell so that said frame is biased in a dead center position when said follower projection engages said dwell so that said frame is biased to assume one of said positions.
Claim 7
Dependent Claim
293 words
A printing machine with a roller platen releasing device, comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame mounted on said carriage means for angular movement, and a roller platen mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for passing said type means by; holding means for arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke; shifting means including releasing means turnably mounted on said frame and having a contact face, connecting means mounted on said carriage means and having an other contact face slidingly abutting said contact face, and a spring connecting a portion of said connecting means with said frame; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions during said printing and return strokes of said carriage means when engaging the respective actuating block, and causes through said abutting contact faces and said connecting means turning of said frame between said printing and retracted positions, said holding means blocking said frame in said printing and retracted positions so that said slidingly abutting contact faces and said releasing means and connecting means move relative to each other when said releasing means passes over the respective actuating block after shifting said frame to one of the blocked positions thereof.
Claim 8
Dependent Claim
293 words
A printing machine with a roller platen releasing device, comprising a printing bed, type means mounted on said printing bed; carriage means mounted on said printing bed for reciprocating movement over said type means in a printing stroke and in a return stroke; a roller platen frame mounted on said carriage means for angular movement, and a roller platen mounted on said frame for movement therewith between a printing position cooperating with said type means and a retracted position for passing said type means by; holding means for arresting said roller platen frame and said roller platen in said printing position during said printing stroke, and in said retracted position during said return stroke; shifting means including releasing means turnably mounted on said frame and having a contact face, connecting means mounted on said carriage means and having an other contact face slidingly abutting said contact face, and a spring connecting a portion of said connecting means with said frame; and two actuating blocks secured to said printing bed on opposite sides of said type means and located in the path of movement of said releasing means during said strokes of said carriage means so that said releasing means is turned in opposite directions during said printing and return strokes of said carriage means when engaging the respective actuating block, and causes through said abutting contact faces and said connecting means turning of said frame between said printing and retracted positions, said holding means blocking said frame in said printing and retracted positions so that said slidingly abutting contact faces and said releasing means and connecting means move relative to each other when said releasing means passes over the respective actuating block after shifting said frame to one of the blocked positions thereof.
Claim 9
Dependent Claim
56 words
Printing machine as claimed in claim 5 wherein said releasing means includes a releasing lever having said contact face and an arm for engaging said actuating blocks, wherein said connecting means includes a connecting lever having said other contact face, and wherein said portion of said connecting lever is located remote from said other contact face.
Claim 10
Dependent Claim
69 words
Printing machine as claimed in claim 5, wherein said carriage means includes an eccentric shaft means turnably supporting said roller platen frame, and including an end portion projecting from said carriage and having means for engaging a tool so that said eccentric shaft means can be manually turned for adjusting the distance between said roller platen on said roller platen frame and said type means in said printing position.
Claim 11
Dependent Claim
67 words
Printing machine as claimed in claim 7, wherein said eccentric shaft means includes a main shaft portion, a first reduced end portion, eccentric to the axis of said main shaft portions and mounted in said carriage means, a second reduced end portion concentric to said axis, and being said projecting end portion and an eccentric ring for mounting said second reduced end portion on said carriage means.
Claim 12
Dependent Claim
29 words
Printing machine as claimed in claim 5, wherein said carriage means includes an abutment means; and wherein said roller platen frame abuts said abutment means in said printing position.
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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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |