US3907422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reciprocating carriages in copying machines
Assignee: Agfa Gevaert AG
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Filing: 1973-11-28
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Granted: 1975-09-23
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Expires: 1993-11-28
Abstract
Abstract A copying machine wherein a reciprocable carriage supports one or more light sources and is movable forwardly and backwards with respect to a stationary original. The carriage is coupled to an endless band by a link or fork, and the band is trained over two rollers one of which can be driven by a belt and a magnetic clutch to move the carriage forwardly and the other of which can be driven by a discrete motor to move the carriage back to a starting position. Alternatively, one of the rollers can be driven forwardly at a lower speed by a transmission which can also drive the one roller rearwardly but at a higher speed. The connection between the link or fork and the band is such that the carriage is gradually accelerated during movement from either of two end positions, gradually decelerated during movement to either of the two end positions, and comes to a full stop in each of the two end positions even if the band is driven at a constant speed. The band must be driven in two directions if it is coupled to the carriage by a link, but it may be driven in a single direction if it is coupled to the carriage by a fork which is rigid with the carriage and has a slot for a pin of the band. At least one elongated portion of the band is parallel to the path of movement of the carriage.
Inventors
- 👤 Rudolf Eppe
- 👤 Gunther Schnall
- 👤 Walter Schott
- 👤 Hermann Bronner
- 👤 Rudiger Ettelbruck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:09
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525; G03B27/526
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
222 words
In a copying machine, particularly in a book copying machine wherein at least one component of illuminating and optical scanning means is reciprocable with respect to a stationary original, a combination comprising a carriage which is reciprocable along an elongated path; at least one elongated endless flexible element having an elongated portion which is at least substantially parallel to said path; means for coupling said carriage to said flexible element; and means for moving said flexible element at a plurality of substantially constant speeds, comprising a plurality of rotary members over which said flexible element is trained and means for driving said flexible element through the medium of at least one of said rotary members, said driving means comprising a transmission having means for rotating said one rotary member forwardly at a first speed and rearwardly at a second speed, said means for rotating said one rotary member comprising a first shaft rigid with said one rotary member, a second shaft, mating first and second gears respectively secured to said first and second shafts, first and second pulleys respectively mounted on and rotatable relative to said first and second shafts, first and second clutch means actuatable to respectively connect said first and second pulleys to said first and second shafts, and a constant-speed belt trained over and arranged to drive said pulleys.
Claim 2
Dependent Claim
222 words
In a copying machine, particularly in a book copying machine wherein at least one component of illuminating and optical scanning means is reciprocable with respect to a stationary original, a combination comprising a carriage which is reciprocable along an elongated path; at least one elongated endless flexible element having an elongated portion which is at least substantially parallel to said path; means for coupling said carriage to said flexible element; and means for moving said flexible element at a plurality of substantially constant speeds, comprising a plurality of rotary members over which said flexible element is trained and means for driving said flexible element through the medium of at least one of said rotary members, said driving means comprising a transmission having means for rotating said one rotary member forwardly at a first speed and rearwardly at a second speed, said means for rotating said one rotary member comprising a first shaft rigid with said one rotary member, a second shaft, mating first and second gears respectively secured to said first and second shafts, first and second pulleys respectively mounted on and rotatable relative to said first and second shafts, first and second clutch means actuatable to respectively connect said first and second pulleys to said first and second shafts, and a constant-speed belt trained over and arranged to drive said pulleys.
Claim 3
Dependent Claim
23 words
A combination as defined in claim 1 wherein said means for coupling comprises a coupling member which is articulately connected with said carriage.
Claim 4
Dependent Claim
24 words
A combination as defined in claim 1, wherein said means for coupling comprises a coupling member which is articulately connected with said flexible element.
Claim 5
Dependent Claim
45 words
A combination as defined in claim 2, wherein the orientation of said coupling member is such that said carriage comes to a halt while the point where said coupling member is connected to said flexible element travels along at least one of said rotary members.
Claim 6
Dependent Claim
30 words
A combination as defined in claim 4, wherein said flexible element comprises a projection and said coupling member is rigid with said carriage and has a slot for said projection.
Claim 7
Dependent Claim
35 words
A combination as defined in claim 1, wherein the diameter of said first gear exceeds the diameter of said second gear and the diameter of said second pulley exceeds the diameter of said first pulley.
Claim 8
Dependent Claim
34 words
A combination as defined in claim 6, wherein said onE rotary member is arranged to move said flexible element forwardly while rotating at a lower speed and rearwardly while rotating at a higher speed.
Claim 9
Dependent Claim
27 words
A combination as defined in claim 1, further comprising elongated guide means for said carriage, said portion of so flexible element being parallel to said guide means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |