US3618123A - Facsimile drum conveyor - Google Patents

Facsimile drum conveyor Download PDF

Info

Publication number
US3618123A
US3618123A US786919A US3618123DA US3618123A US 3618123 A US3618123 A US 3618123A US 786919 A US786919 A US 786919A US 3618123D A US3618123D A US 3618123DA US 3618123 A US3618123 A US 3618123A
Authority
US
United States
Prior art keywords
drum
sheet
bar
drum member
bar member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US786919A
Other languages
English (en)
Inventor
Gerald A Buddendeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of US3618123A publication Critical patent/US3618123A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/08—Mechanisms for mounting or holding the sheet around the drum
    • H04N1/0804—Holding methods
    • H04N1/0813—Holding sides of the sheet which are substantially parallel to the drum axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L29/00—Devices for attaching printing elements or formes to supports
    • B41L29/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41L29/14—Clamping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/08—Mechanisms for mounting or holding the sheet around the drum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/08—Mechanisms for mounting or holding the sheet around the drum
    • H04N1/083—Holding means
    • H04N1/0839—Mechanical clamps, i.e. means for holding the sheet against the drum by mechanical force

Definitions

  • PATENTEB uuvz lEJTi SHEET 1 OF 3 INVHN'IOR. GERALD A. BUDDENDECK ATTORNEY PATENTED HUVZ 1971 SHEET 3 OF 3 l 3 w r FIG. 4
  • This invention relates generally to facsimile apparatus and more particularly to apparatus for supporting sheets of flexible material such as documents and copy sheets on a rotatable drum member for scanning or recording.
  • the sheets to be used therein are precut to a predetermined dimension.
  • the opposite edges of the sheet are then turned back at acute angles and creased.
  • One of the creased edges is then inserted into one gripper slot of the cylindrical drum and the sheet wrapped tightly about the drum periphery.
  • the other creased portion is then inserted into a second gripper slot of the drum.
  • the gripper mechanism is then adjusted to wrap and hold the sheet tightly about the periphery of the cylindrical surface.
  • one edge of the sheet material is inserted into the lip of a gripper member supported on the drum periphery.
  • the trailing portion of the sheet is then wound tightly about the drum periphery by a wiping bar, which is supported externally of the drum.
  • the wiping bar is utilized to provide a tension on the sheet as it is wrapped about the drum.
  • the sheet is then held tightly about the drum periphery by securing the trailing edge of the sheet on the drum with the wiping bar.
  • a longitudinal bar member resiliently biassed radially inwardly of a rotatable drum member to a normal position engaging the leasing edge of a sheet between a projecting lip and a portion of the drum periphery.
  • An access door over the drum when opened beyond a predetermined position pivots a cam member to engage the bar as the drum is rotated to a predetermined rotative position, camming the bar radially outwardly to permit the attachment or removal of a sheet from the drum.
  • a resiliently biassed wiper bar holds a sheet tautly against the drum periphery as the drum is rotated.
  • FIG. 1 is a perspective view of a facsimile machine in which the apparatus according to the present invention is particularly adapted for use.
  • Drum 15 may be supported within the facsimile machine by means of a shaft 10 which is rotatably journaled in suitable bearing arrangements such as bearings 11 in frame plates 12 and 14.
  • Drum 15 is drivingly connected to shaft 10 and thus may be driven about the axis thereof by any suitable driving arrangement.
  • the drum 15 is driven in the clockwise direction as viewed in FIGS. 3 to 5 by means of a synchronous motor and a gear reduction drive arrangement not shown.
  • Drum 15 includes a slot which extends axially in cylindrical sleeve 17 and annular rings 16 to receive a bar member 20.
  • Bar member 20 includes a tang or lip portion 21 for engaging the leading edge of a sheet 30 to be supported on drum member 15.
  • Bar member 20 is positioned in drum member 15 such that lip portion 21 projects in the direction opposite the direction of drum rotation.
  • Bar member 20 is normally biassed radially inwardly of drum member 15 by means of a plurality of spring members 23 which are supported through apertures 22 in bar member 20 and which engage the inner surface of cylindrical sleeve 17.
  • lip portion 21 is normally biassed into engagement with a mating surface adjacent the slot which extends axially along the drum surface. The leading edge of a sheet 30 may be thus supported between the lip portion 21 of bar member 20 and the mating surface on drum 15 under the biasing action of spring members 23.
  • a pair of lever arms 25 are pivotally supported on frame plates 12 and 14 adjacent the respective ends of drum member 15 by means of pivot shafts 27.
  • Lever arms 25 include cam surfaces 28 which extend toward drum member 15 within the recess of annular rings 16 to operatively engage the lower surface of bar member 20 when lever arms 25 are pivoted clockwise about pivot shaft 27 to the raised portion as viewed in FIG. 5.
  • a raised ridge or abutment 24 is located at the upper portion of cam surfaces to provide a stop for drum member 15 when the lever arms 25 are pivoted to the raised position.
  • a door or closure member 31 is pivotally supported above drum member 15 by means of pivot shafts 34 or other suitable fastening means connected to frame plates 12 and 14.
  • Door 31 includes along one edge thereof, cam surfaces 33 which are utilized in pivoting lever arms 25 and cam surfaces 28 to the raised position as seen in FIG. 5.
  • lever arms 25 include surfaces 29 which extend rearwardly to a point to be engageable by cam surfaces 33 on door 31.
  • cam surfaces 33 engage lever arms 25 along surfaces 29, pivoting lever arms 25 in the clockwise direction as seen in FIGS. 3-5 about shaft 27.
  • cam surfaces 28 are pivoted to the raised position engageable with the lower surface of bar member 20.
  • cam surfaces 28 are arranged to engage bar member 20 at approximately the top dead center position as bar member 20 rotates with drum member 15.
  • the sheet-gripping bar 20 will be positioned to receive and release sheets only at a predetermined rotative position of drum member 15.
  • a plurality of guide members may be operatively located about the drum periphery to maintain an engaged sheet in close proximity to the drum surface.
  • a plurality of ribs 39 may be attached to the front closure 38 of the machine and supported by means of a rod 41 connected to frame plates 12 and 14.
  • a plurality of similarly spaced ribs 32 may also be supported on the inner surface of door member 31 which when in the closed position provide a guideway encircling at least a portion of the periphery of drum 15.
  • door 31 covering drum 15 is positioned to the full open position as illustrated in FIG. 5.
  • cam surfaces 33 on door 31 engage surfaces 29 on lever arms 25.
  • lever arms are pivoted from the normal lowered position resting on support pins 26, in the clockwise direction about pivot shafts 27, pivoting cam surfaces 28 to the raised position engageable with the lower surface of bar member 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Unwinding Webs (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Facsimiles In General (AREA)
  • Discharge By Other Means (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US786919A 1968-12-26 1968-12-26 Facsimile drum conveyor Expired - Lifetime US3618123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78691968A 1968-12-26 1968-12-26

Publications (1)

Publication Number Publication Date
US3618123A true US3618123A (en) 1971-11-02

Family

ID=25139950

Family Applications (1)

Application Number Title Priority Date Filing Date
US786919A Expired - Lifetime US3618123A (en) 1968-12-26 1968-12-26 Facsimile drum conveyor

Country Status (9)

Country Link
US (1) US3618123A (enrdf_load_stackoverflow)
JP (1) JPS5125737B1 (enrdf_load_stackoverflow)
BE (1) BE743659A (enrdf_load_stackoverflow)
CA (1) CA918186A (enrdf_load_stackoverflow)
ES (1) ES374915A1 (enrdf_load_stackoverflow)
FR (1) FR2027124B1 (enrdf_load_stackoverflow)
GB (1) GB1280340A (enrdf_load_stackoverflow)
NL (1) NL6919524A (enrdf_load_stackoverflow)
SE (1) SE363457B (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808603A (en) * 1972-12-29 1974-04-30 Minnesota Mining & Mfg Method and apparatus for loading and unloading a facsimile system
US3854715A (en) * 1973-03-19 1974-12-17 Xerox Corp Cam
US3873986A (en) * 1973-05-08 1975-03-25 Ricoh Kk Recording needle protection arrangement for facsimile recorder
US3906512A (en) * 1972-12-29 1975-09-16 Minnesota Mining & Mfg Mechanical drum positioning and sheet-clamping mechanism for facsimile
US4056829A (en) * 1975-06-11 1977-11-01 Olympus Optical Co. Ltd. Device for detachably mounting a manuscript on a rotary cylindrical drum for cylinder scanning type facsimiles
US4101018A (en) * 1975-08-22 1978-07-18 Teletype Corporation Paper edge sensor
US4134136A (en) * 1977-04-20 1979-01-09 Burroughs Corporation Paper carrier for facsimile machine
US4179118A (en) * 1977-09-08 1979-12-18 Minnesota Mining And Manufacturing Company Apparatus and method for releasably securing sheet material to the drum of a drum-type facsimile machine
US4259695A (en) * 1979-12-03 1981-03-31 Matsushita Graphic Communication Systems, Inc. Facsimile sheet clamping device
US4386771A (en) * 1981-05-08 1983-06-07 Xerox Corporation Method of removing a sheet from a drum
US4824096A (en) * 1987-07-17 1989-04-25 Polaroid Corporation Sheet clamp counterbalancing system for high speed sheet handling drums
US4843433A (en) * 1985-04-10 1989-06-27 Sharp Kabushiki Kaisha Automatic document feeder
US5145170A (en) * 1988-08-22 1992-09-08 Fuji Photo Film Co., Ltd. Drum for image recording apparatus having a guide member with a sheet retaining member

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514974A (en) * 1948-06-25 1950-07-11 Times Facsimile Corp Sheet holding mechanism for facsimile recorders and the like
US2666808A (en) * 1950-07-18 1954-01-19 Times Facsimile Corp Facsimile machine
US2861862A (en) * 1953-06-27 1958-11-25 Philips Corp Dictation apparatus
US3348288A (en) * 1965-10-01 1967-10-24 Xerox Corp Drum clamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101234A (en) * 1963-08-20 Sheet clamping and unclamping mechanism
JPS4218636Y1 (enrdf_load_stackoverflow) * 1965-05-25 1967-10-27
JPS4222396Y1 (enrdf_load_stackoverflow) * 1965-06-16 1967-12-20

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514974A (en) * 1948-06-25 1950-07-11 Times Facsimile Corp Sheet holding mechanism for facsimile recorders and the like
US2666808A (en) * 1950-07-18 1954-01-19 Times Facsimile Corp Facsimile machine
US2861862A (en) * 1953-06-27 1958-11-25 Philips Corp Dictation apparatus
US3348288A (en) * 1965-10-01 1967-10-24 Xerox Corp Drum clamp

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808603A (en) * 1972-12-29 1974-04-30 Minnesota Mining & Mfg Method and apparatus for loading and unloading a facsimile system
US3906512A (en) * 1972-12-29 1975-09-16 Minnesota Mining & Mfg Mechanical drum positioning and sheet-clamping mechanism for facsimile
US3854715A (en) * 1973-03-19 1974-12-17 Xerox Corp Cam
US3873986A (en) * 1973-05-08 1975-03-25 Ricoh Kk Recording needle protection arrangement for facsimile recorder
US4056829A (en) * 1975-06-11 1977-11-01 Olympus Optical Co. Ltd. Device for detachably mounting a manuscript on a rotary cylindrical drum for cylinder scanning type facsimiles
US4101018A (en) * 1975-08-22 1978-07-18 Teletype Corporation Paper edge sensor
US4134136A (en) * 1977-04-20 1979-01-09 Burroughs Corporation Paper carrier for facsimile machine
US4179118A (en) * 1977-09-08 1979-12-18 Minnesota Mining And Manufacturing Company Apparatus and method for releasably securing sheet material to the drum of a drum-type facsimile machine
US4259695A (en) * 1979-12-03 1981-03-31 Matsushita Graphic Communication Systems, Inc. Facsimile sheet clamping device
US4386771A (en) * 1981-05-08 1983-06-07 Xerox Corporation Method of removing a sheet from a drum
US4843433A (en) * 1985-04-10 1989-06-27 Sharp Kabushiki Kaisha Automatic document feeder
US4824096A (en) * 1987-07-17 1989-04-25 Polaroid Corporation Sheet clamp counterbalancing system for high speed sheet handling drums
US5145170A (en) * 1988-08-22 1992-09-08 Fuji Photo Film Co., Ltd. Drum for image recording apparatus having a guide member with a sheet retaining member

Also Published As

Publication number Publication date
NL6919524A (enrdf_load_stackoverflow) 1970-06-30
SE363457B (enrdf_load_stackoverflow) 1974-01-14
ES374915A1 (es) 1972-02-16
BE743659A (enrdf_load_stackoverflow) 1970-06-24
GB1280340A (en) 1972-07-05
JPS5125737B1 (enrdf_load_stackoverflow) 1976-08-02
DE1963786A1 (de) 1970-07-09
FR2027124A1 (enrdf_load_stackoverflow) 1970-09-25
DE1963786B2 (de) 1973-01-18
CA918186A (en) 1973-01-02
FR2027124B1 (enrdf_load_stackoverflow) 1976-03-19

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