Patent US3715085A successfully refreshed from Google Patents.
US3715085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supplying continuous sheet of paper from a rolled package used in a copying apparatus
Assignee: Iwatsu Electric Co Ltd
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Filing: 1970-09-15
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Granted: 1973-02-06
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Expires: 1990-09-15
Abstract
Abstract An electrophotographic apparatus comprises supporting means for rotatably supporting a roll of paper, a mechanical system for advancing the paper through the apparatus, a roller rotatably mounted along the advancing path of the paper for eliminating the tendency of the paper to reroll; a cutting device for cutting the paper into separate sheets, and sensing means for sensing the consumption of the roll of paper. The supporting means comprises a rotatable shaft having a flange mounted on each end thereof for supporting therebetween the roll of paper. One end of the shaft is provided with a helical thread which cooperates with a pivotal lever on one flange to releasably and adjustably mount the flange on the shaft. A biasing spring urges the lever into engagement with the helical thread to releasably lock the flange on the shaft and the spring may be compressed by manually pivoting the lever against the spring force whereby the flange may be slid off of the shaft so that another roll of paper may be mounted thereon.
Inventors
- 👤 A Kobayashi
- 👤 T Koike
- 👤 K Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:32
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6523; B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/587; G03B27/588; G03G15/6588; G03G15/6594; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00518; Y; Y10; Y10T; Y10T83/00; Y10T83/889; Y10T83/896
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
232 words
A device for supporting a rolled web comprising: a shaft having opposite ends; a first flange connected to one end of said shaft; a second flange removably connected to the other end of said shaft and cooperative with said first flange to support therebetween a rolled web; and means mounting said second flange on said shaft for releasable engagement therewith in a plurality of axially spaced-apart locations along said other end and for complete removal from said shaft, said means comprising means defining a plurality of axially spaced-apart grooves in said other end of said shaft, means defining a bore extending through said second flange slidably receiving therethrough said other end of said shaft, a lever pivotally mounted on said second flange manually pivotal into one position wherein same releasably engages with one of said grooves thereby releasably locking said second flange in one of said locations along said shaft and manually pivotal into another position wherein said lever is out of engagement with said shaft thereby enabling said second flange to be axially slid relative to and removed from said shaft, and biasing means continuously biasing said lever to said one position; whereby a rolled web may be supported by removing said second flange, then inserting the rolled web over said shaft, and replacing said second flange and engaging same with said shaft to support the rolled web between said flanges.
Claim 2
Independent Claim
232 words
A device for supporting a rolled web comprising: a shaft having opposite ends; a first flange connected to one end of said shaft; a second flange removably connected to the other end of said shaft and cooperative with said first flange to support therebetween a rolled web; and means mounting said second flange on said shaft for releasable engagement therewith in a plurality of axially spaced-apart locations along said other end and for complete removal from said shaft, said means comprising means defining a plurality of axially spaced-apart grooves in said other end of said shaft, means defining a bore extending through said second flange slidably receiving therethrough said other end of said shaft, a lever pivotally mounted on said second flange manually pivotal into one position wherein same releasably engages with one of said grooves thereby releasably locking said second flange in one of said locations along said shaft and manually pivotal into another position wherein said lever is out of engagement with said shaft thereby enabling said second flange to be axially slid relative to and removed from said shaft, and biasing means continuously biasing said lever to said one position; whereby a rolled web may be supported by removing said second flange, then inserting the rolled web over said shaft, and replacing said second flange and engaging same with said shaft to support the rolled web between said flanges.
Claim 3
Independent Claim
232 words
A device for supporting a rolled web comprising: a shaft having opposite ends; a first flange connected to one end of said shaft; a second flange removably connected to the other end of said shaft and cooperative with said first flange to support therebetween a rolled web; and means mounting said second flange on said shaft for releasable engagement therewith in a plurality of axially spaced-apart locations along said other end and for complete removal from said shaft, said means comprising means defining a plurality of axially spaced-apart grooves in said other end of said shaft, means defining a bore extending through said second flange slidably receiving therethrough said other end of said shaft, a lever pivotally mounted on said second flange manually pivotal into one position wherein same releasably engages with one of said grooves thereby releasably locking said second flange in one of said locations along said shaft and manually pivotal into another position wherein said lever is out of engagement with said shaft thereby enabling said second flange to be axially slid relative to and removed from said shaft, and biasing means continuously biasing said lever to said one position; whereby a rolled web may be supported by removing said second flange, then inserting the rolled web over said shaft, and replacing said second flange and engaging same with said shaft to support the rolled web between said flanges.
Claim 4
Independent Claim
232 words
A device for supporting a rolled web comprising: a shaft having opposite ends; a first flange connected to one end of said shaft; a second flange removably connected to the other end of said shaft and cooperative with said first flange to support therebetween a rolled web; and means mounting said second flange on said shaft for releasable engagement therewith in a plurality of axially spaced-apart locations along said other end and for complete removal from said shaft, said means comprising means defining a plurality of axially spaced-apart grooves in said other end of said shaft, means defining a bore extending through said second flange slidably receiving therethrough said other end of said shaft, a lever pivotally mounted on said second flange manually pivotal into one position wherein same releasably engages with one of said grooves thereby releasably locking said second flange in one of said locations along said shaft and manually pivotal into another position wherein said lever is out of engagement with said shaft thereby enabling said second flange to be axially slid relative to and removed from said shaft, and biasing means continuously biasing said lever to said one position; whereby a rolled web may be supported by removing said second flange, then inserting the rolled web over said shaft, and replacing said second flange and engaging same with said shaft to support the rolled web between said flanges.
Claim 5
Dependent Claim
41 words
A device according to claim 1; wherein said means defining a plurality of axially spaced-apart grooves comprises a helical rib projecting outwardly from said other end of said shaft defining a groove between each two adjacent turns of said helical rib.
Claim 6
Dependent Claim
64 words
A device according to claim 1; wherein said lever has a first arm dimensioned to fit within said grooves when said lever is in said one position and a second arm, and means mounting said lever at a position between said first and second arms for pivotal movement into and out of said one position in response to manual depression of said second arm.
Claim 7
Dependent Claim
162 words
In an electrophotographic apparatus: supporting means for rotatably supporting a roll of paper rolled in one direction into a package, said supporting means including a pair of spaced-apart opposed and rotatable flanges for receiving therebetween the roll, means mounting one of said flanges for movement toward and away from the other flange to enable the roll to be positioned between said flanges, and means including a lever pivotally mounted on said one flange for releasably locking said flanges in spaced-apart relationship; advancing means for unrolling the paper from said supporting means and advancing same along a path of travel; means disposed along said path of travel for eliminating the tendency of the paper to reroll in said one direction; a cutting device disposed along said path of travel downstream from said last-mentioned means operative to cut the paper into separate sheets; and sensing means for sensing the absence of the paper upstream from said cutting device and providing a corresponding output signal.
Claim 8
Dependent Claim
162 words
In an electrophotographic apparatus: supporting means for rotatably supporting a roll of paper rolled in one direction into a package, said supporting means including a pair of spaced-apart opposed and rotatable flanges for receiving therebetween the roll, means mounting one of said flanges for movement toward and away from the other flange to enable the roll to be positioned between said flanges, and means including a lever pivotally mounted on said one flange for releasably locking said flanges in spaced-apart relationship; advancing means for unrolling the paper from said supporting means and advancing same along a path of travel; means disposed along said path of travel for eliminating the tendency of the paper to reroll in said one direction; a cutting device disposed along said path of travel downstream from said last-mentioned means operative to cut the paper into separate sheets; and sensing means for sensing the absence of the paper upstream from said cutting device and providing a corresponding output signal.
Claim 9
Dependent Claim
129 words
An electrophOtographic apparatus according to claim 4; wherein said sensing means comprises a rotatable roller positioned along said path of travel and receiving around a peripheral portion thereof the paper and having means therein defining an annular groove, a pivotally mounted lever positioned in opposed relationship from said annular groove for pivotal movement towards and away from said groove, means continuously urging said lever towards said groove whereby said lever is prevented from entering said groove by the paper whenever the paper is wrapped around a peripheral portion of said roller and said lever is pivoted into said groove whenever the paper is absent from around a peripheral portion of said roller, and means responsive to pivotal movement of said lever into said groove for providing said output signal.
Claim 10
Dependent Claim
98 words
An electrophotographic apparatus according to claim 4; wherein said supporting means comprises a rotatably mounted shaft having connected thereto in spaced-apart relationship therealong said pair of flanges, and wherein said means mounting said one flange for movement toward and away from said other flange comprises means defining an opening through said one flange slidably receiving therethrough an end portion of said shaft, and wherein said means for releasably locking said flanges includes screw threads on said end portion of said shaft releasably engageable with said lever and cooperative therewith to releasably lock said one flange on said shaft.
Claim 11
Dependent Claim
76 words
An electrophotographic apparatus according to claim 6; wherein said means for releasably locking said flanges includes a biasing spring normally biasing said lever into releasable engagement with a root portion of said screw threads with a force effective to releasably lock said one flange on said shaft but which may be overcome by manually depressing said lever against the biasing force thereby disengaging said lever and enabling said one flange to be removed from said shaft.
Claim 12
Dependent Claim
120 words
An electrophotographic apparatus according to claim 6; wherein said means for eliminating the tendency of the paper to reroll in said one direction includes a pair of arcuate guiding surfaces receiving around a peripheral portion thereof the paper and cooperative together to guide same along an arcuate path effective to eliminate the natural tendency of the paper to reroll in said one direction, and means mounting said pair of arcuate guiding surfaces for relative movement toward and away from each other to selectively vary the extent of contact of the paper with said arcuate guiding surfaces whereby the rerolling tendency of the paper may be effectively eliminated irregardless of the thickness of the paper or the size of the roll.
References Cited (Backward Citations)
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |