US4023662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for adjusting the spacing between a print head and a platen
Assignee: TIM SpA
•
Filing: 1975-10-30
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Granted: 1977-05-17
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Expires: 1995-10-30
Abstract
Abstract A device for adjusting the distance of a printing head from a platen for an office machine comprises a printing head movable parallel to a platen along two guides. One of these guides is fixed to the frame of the machine; the other is transversely shiftable by a cam for correspondingly shifting the head, the cam being swung by a manually operable linkage. The device further comprises means for preventing the driving belt from excessive stresses and wear.
Inventors
- 👤 Vincenzo Perucca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:29
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/304; B41J25/308
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
In an office machine having a platen, a wire-type printing head movable parallel to the platen along at least one guide, a manually operable means for adjusting the distance between said head and the platen comprising: a shaft parallel to said guide, said guide engaging said head and being laterally movable along with said head toward and away from said platen, a cam fixed to said shaft and having a cam surface, a manually operated linkage connected to said cam for moving said cam about the axis of said shaft, and means engageable by said cam surface to shift said cam and said shaft laterally when said cam is moved about said shaft axis.
Claim 2
Dependent Claim
114 words
In an office machine having a platen, a wire-type printing head movable parallel to the platen along at least one guide, a manually operable means for adjusting the distance between said head and the platen comprising: a shaft parallel to said guide, said guide engaging said head and being laterally movable along with said head toward and away from said platen, a cam fixed to said shaft and having a cam surface, a manually operated linkage connected to said cam for moving said cam about the axis of said shaft, and means engageable by said cam surface to shift said cam and said shaft laterally when said cam is moved about said shaft axis.
Claim 3
Dependent Claim
25 words
The office machine as set forth in claim 1 wherein said shaft constitutes a second guide for said head, said head slidably engaging said shaft.
Claim 4
Dependent Claim
85 words
The office machine of claim 1 wherein said cam surface is formed in a slot on said cam, and said means engageable by said cam surface comprises a pin extending into said slot, said pin being movable with respect to said slot between a first position wherein said head is closely spaced from said platen and a second position wherein said head is spaced further from said platen, said slot increasing in distance from said shaft axis between said first position and said second position.
Claim 5
Dependent Claim
26 words
The office machine of claim 3 wherein said pin is mounted on a lever operable to move said pin selectively between said first and second positions.
Claim 6
Dependent Claim
63 words
The office machine of claim 4 further comprising a movable transporting means for moving said head along said guide, and a flexible strip attached to said head and to said movable transporting means, said flexible strip extending generally parallel to the path of movement of said transporting device and flexing to accommodate the movement of said head toward and away from said platen.
Claim 7
Dependent Claim
36 words
The office machine of claim 5 wherein said transporting device comprises: a belt extending substantially parallel to said guide, a pair of feed pulleys supporting said belt, attachment means for attaching said strip to said belt.
Claim 8
Dependent Claim
82 words
In an office machine having a platen, a wire-type printing head movable parallel to said platen along at least one guide, belt means movable in a path substantially parallel to said platen, and means for adjusting the distance between said head and said platen, the improvement comprising an elongated flexible strip attached to said head and to said belt, said strip extending substantially parallel to said belt and flexing to accommodate the movement of said head toward and away from said platen.
Claim 9
Dependent Claim
82 words
In an office machine having a platen, a wire-type printing head movable parallel to said platen along at least one guide, belt means movable in a path substantially parallel to said platen, and means for adjusting the distance between said head and said platen, the improvement comprising an elongated flexible strip attached to said head and to said belt, said strip extending substantially parallel to said belt and flexing to accommodate the movement of said head toward and away from said platen.
References Cited (Backward Citations)
US3442210A
Cited
US3912068A
Cited
US3750792A
Cited
US3817365A
Cited
US3951252A
Cited
US3935936A
Cited
US3910395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |