Patent US3232181A successfully refreshed from Google Patents.
US3774534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary screen printing machine
Assignee: Individual
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Filing: 1972-03-09
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Granted: 1973-11-27
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Expires: 1992-03-09
Abstract
Abstract A rotary screen printing machine having a plurality of printing sections, wherein when a rotary screen of one printing section is at a position raised from the printing operation position, and the printing operation is conducted by a plurality of printing sections alternately, whereby time required for change of color or design or for washing of screens, squeegees, etc. can be greatly minimized and the machine operation efficiency can be greatly increased.
Inventors
- 👤 S Ichinose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:57
CPC Classifications
B; B41; B41F; B41F15/00; B41F15/08; B41F15/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
234 words
A rotary screen printing machine comprising pulleys at opposite ends of the printing operation zone, at least one pulley being a driven pulley, a printing belt supported on and driven by said pulleys for supporting a material to be printed and transporting it to the printing operation zone, a plurality of rotary screens positioned above said belt in said printing operation zone, a squeegee member in the interior of each rotary screen for squeezing a printing paste or ink through the rotary screen onto the material to be printed, a first drive mechanism coupled to said rotary screens for driving the rotary screens at a speed synchronized with the speed of the printing belt, said machine having in said printing operation zone a plurality of printing sections independent of each other, each of said printing sections including at least one of said rotary screens, a printing frame supporting said rotary screen and a lift mechanism for moving said printing frame vertically and operable independently of the lift mechanisms for the other printing sections, whereby the rotary screen of one printing section can be in the printing operation position, and the rotary screen of other printing section can be at a position raised from the printing operation position, and the printing operation can be conducted by less than all of the printing sections while the parts in the raised printing section are prepared for printing.
Claim 2
Dependent Claim
234 words
A rotary screen printing machine comprising pulleys at opposite ends of the printing operation zone, at least one pulley being a driven pulley, a printing belt supported on and driven by said pulleys for supporting a material to be printed and transporting it to the printing operation zone, a plurality of rotary screens positioned above said belt in said printing operation zone, a squeegee member in the interior of each rotary screen for squeezing a printing paste or ink through the rotary screen onto the material to be printed, a first drive mechanism coupled to said rotary screens for driving the rotary screens at a speed synchronized with the speed of the printing belt, said machine having in said printing operation zone a plurality of printing sections independent of each other, each of said printing sections including at least one of said rotary screens, a printing frame supporting said rotary screen and a lift mechanism for moving said printing frame vertically and operable independently of the lift mechanisms for the other printing sections, whereby the rotary screen of one printing section can be in the printing operation position, and the rotary screen of other printing section can be at a position raised from the printing operation position, and the printing operation can be conducted by less than all of the printing sections while the parts in the raised printing section are prepared for printing.
Claim 3
Dependent Claim
178 words
A rotary screen printing machine as claimed in claim 1, further comprising means associated with each rotary screen comprised of a bearing device on which each of the rotary screens is rotatably mounted, a supporting member on which said bearing device is mounted, a supporting shaft on which one end of said supporting member is pivotally mounted, the other end of said supporting member being attached to said lift mechanism, a screen gear on the rotary screen, an idle gear on said supporting shaft engaged with said screen gear, a screen driving gear engaged with said idle gear, a second drive mechanism independent of said first drive mechanism, and means alTernatively connecting said screen driving gear with said first drive mechanism and said second drive mechanism, whereby when the rotary screen of one section is in the printing operation position, said rotary screen can be driven by the first drive mechanism and the rotary screen of other printing block is at a position raised from the printing operation position and can be driven by the second drive mechanism.
Claim 4
Dependent Claim
63 words
A rotary screen printing machine as claimed in claim 2, wherein in each of the printing sections said lastmentioned means comprises a screen driving shaft, a gearing mechanism coupled between said screen driving shaft and said screen driving gear, and means at the ends of said screen driving shaft for coupling said screen driving shaft to said first and second drive means, respectively.
Claim 5
Dependent Claim
112 words
A rotary screen printing mechanism as claimed in claim 3 wherein the means for connecting the screen driving shaft to said first drive mechanism is a first clutch mechanism at one end of said screen driving shaft, and said means for connecting the screen driving shaft to the second drive mechanism is a second clutch mechanism, said first drive mechanism comprising a gearing mechanism coupled to one of said pulleys for said belt for transmitting the rotation of said pulley, and a drive shaft coupled between said gearing mechanism and said first clutch mechanism for transmitting the rotation of said drive shaft through the first clutch mechanism to said screen driving shaft.
Claim 6
Dependent Claim
84 words
A rotary screen printing machine as claimed in claim 2 in which said screen gear is on one end of said rotary screen, and said machine further comprises a further screen gear on the other end of said rotary screen, a shaft rotatably mounted on said lifting device, and first spur gear fixed on one end of said shaft and engaged with said first-mentioned screen gear, and a second spur gear on the other end of said shaft engaged with said further screen gear.
Claim 7
Dependent Claim
62 words
A rotary screen printing machine as claimed in claim 2, wherein in each of said printing sections said lift meachanism comprises a vertical member on which said supporting member is mounted, said verticaly member being coupled to said printing frame, and a fluid pressure actuated means coupled to said vertical member for raising and lowering said printing frame and said vertical member.
Claim 8
Dependent Claim
85 words
A rotary screen printing machine as claimed in claim 6 in which said squeegee member is mounted on said printing frame and positioned within said rotary screen so that when the rotary screen is in contact with the material to be printed the blade of said squeegee member is in contact with the inner surface of the rotary screen, and when the rotary screen is in the raised position, the blade of the squeegee member is spaced from the inner surface of the rotary screen.
Claim 9
Dependent Claim
41 words
A rotary screen printing machine as claimed in claim 2 in which there are a plurality of rotary screens in each printing section each having an associated squeegee member, bearing device, supporting member, screen gear, idle gear and screen driving gear.
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |