• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1485026 Delivering sheets XEROX CORP 20 Nov 1974 50307/74 Heading B8R A device for stripping sheets from an arcuate surface 20, Fig. 2, comprises a stripping element 10, Figs. 1 and 2, having a biasing surface 12 separated from the leading edge 11 by a flat surface 13 formed with grooves 14 and a bearing surface 15 adjacent the trailing edge, the element being pivoted at 16 on a support member 21 pivoted at 22 and biased by a spring 23 so as to urge the element towards the surface 20. The pivot point 16 lies on or near the tangent to the surface 20 at the edge 11, while the pivot point 22 lies on or near a line joining the edge and the point 16. The body of the element may be of hardened steel and the bearing surfaces of electro-deposited silver, chromium alloy, nickel, or copper, lead and zinc alloy, or the entire element may be of tungsten carbide.
    公开号:SU721015A3
    申请号:SU752190908
    申请日:1975-11-14
    公开日:1980-03-05
    发明作者:Грехем Мартин Харви
    申请人:Ксерокс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    '"" ^^^^^^^^^^^^^ MSD
    I.
    ("> 721015
    Union of Soviet Socialist Republics
    State Committee
    USSR for inventions and discoveries
    TO THE PATENT (61) Additional to the patent (22) Declared 11/14/75 (21) 2190908 / 28-12 (23) Priority - (32) 11/20/74 (51) M. Cl. 2
    G 03 G 15/14 (31) 50307/74 (33) United Kingdom
    Posted ^) 5.03.8 0. Bulletin No. 9
    Date of publication of the description 08.0 3.8 o (53) UDC772.93 (088.8) (72) Author of the invention (71) Applicant
    Alien
    Harvey Graham Martin (UK)
    Foreign company '' Xerox Corporation 1 * (USA) (54) DEVICE FOR SEPARATING SHEETS FROM A BENT SURFACE OF ELECTROGRAPHIC MEDIA 'IMAGES 1
    The invention relates to electrography.
    A device is known for separating sheets from a curved surface of an electrographic image carrier 5 comprising a support with a spring-loaded rod rotating therein, at the end of which a separating element (1) is freely rotatably disposed. YU
    A disadvantage of the known device is the inaccurate separation of the sheets.
    In order to increase the reliability of separating sheets in the proposed device, the separating element is a two-arm lever having support protrusions at the ends for interacting with the curved surface of the image carrier, and the rod is pivotally connected to the support. in a plane perpendicular to the generatrix of the image carrier.
    Figure 1 shows the described 25 device; figure 2 - separating element.
    .A device for separating sheets from the curved surface of the electrographic image carrier 1 contains a support with a rod 3 rotating around a rotation point 2. A spring 3 is spring 4. At the end of the rod, a separating element b is freely rotatable around the rotation point 5. The separating element is made in the form of a two-shouldered lever having support projections 7 and 8 at the ends. Support projection 7 has an edge 9. Between the support projection 7 and the edge 9 there is a flat surface 10 with grooves 11.
    The angle formed by the edge 9 is 40 °.
    the supporting protrusions 7 and 8 of the separating element b are in contact with the curved surface of the electrographic image carrier 1. The rod 3 is rotated relative to the pivot point 2 and deflected by the spring 4 so as to press the separating element 6 against the curved surface of the electrographic image carrier. Significant force is applied to the edge 9, especially during the removal process. To reduce this force, which increases the radial load on the separation element 6, the rotation point 2 should be located on the tangent drawn
    I to the surface of the image carrier 1, at a point lying against the edge 9.
    The radial load or the displacement of the separating element 6 in the direction of the curved surface is chosen equal to 2 gram-force (g). The load is selected to be minimal in order to reduce the sliding friction force of the support projections 7 and 8 on the surface of the image carrier. Provided that the stability of the system is maintained, if the load is too small, then, for example, at the edge 9 there is a tendency to instability, which is manifested in the fact that it is shifted away from the curved surface, for example, when the system vibrates.
    Materials such as silver, chrome melt, nickel and alloy are used to form support ledges. copper, lead and zinc, as well as tungsten carbide.
    The separating element 6 is made of hardened steel, and the material forming the supporting protrusions 7 and 8 is deposited on the separating element by electrolytic deposition after the separating element has been processed to the required size.
    The thickness of the deposited material forming the supporting protrusions 7 and '8 can be adjusted.
    权利要求:
    Claims (1)
    [1]
    to the surface of the image carrier 1, at a point lying opposite 9 Radial load or displacement of the separating element 6 in the direction of the curved surface selects with an equal 2 gram-force (g), the load is chosen minimum so as to reduce the force of the third: non-slip of the reference shoes. 7 and 8 on the surface of the image carrier. Provided stability is maintained. systems, if the load is too small, for example, from pins 9 tends to be unstable, which is due to the fact that it is displaced away from the curved surface, for example, during system vibrations. Such materials X1K are used to form supporting lugs silver, chrome plated, nickel and copper alloy, lead and zinc, as well as tungsten carbide. , The separation element b is made of hardened steel, and the material forming optic protrusions 7 and 8 is deposited onto the separation element by electrolytic deposition after the separation element has been processed to the required size. The thickness of the osaizable material forming the support lugs 7 and 8 can be adjusted. Apparatus of the Invention A device for separating sheets from the curved surface of an electrophotographic image carrier, comprising a support with a spring-loaded bar turning in it, at the end of which a separating element is freely rotatable, characterized in that, in order to increase the reliability of separating the sheet, the separating element is a two-shoulder a lever having supporting protrusions at the ends for interacting with the curved surface of the image carrier, and the rod is pivotally connected to the support, wherein the bar with the separating element is distributed in a plane perpendicular to the image carrier. Sources of information taken into account in the examination 1, Patent CLA 3578859, CL 355-3, 1972 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU721015A3|1980-03-05|Device for sheet separating from curved surface of electrographical image carrier
    US5587551A|1996-12-24|Developing apparatus
    KR900001047B1|1990-02-26|Developing apparatus
    JP2006171551A|2006-06-29|Fixing apparatus, separating plate, its manufacturing method and image forming apparatus
    US6021297A|2000-02-01|Flexible doctor blade having a radiused contact surface
    KR900001042B1|1990-02-26|Sheet peeling pawl
    EP2610687A2|2013-07-03|Belt unit, fixing device and image forming apparatus
    US5160130A|1992-11-03|Thin-tip stripper finger for use with a fuser roll in an electrophotographic apparatus
    JPH1135189A|1999-02-09|Film type gripping member, manufacture thereof, gripping rotational member and manufacture thereof
    JP4527472B2|2010-08-18|Developing device and image forming apparatus
    US4755848A|1988-07-05|Skive with anti-gouge stiffener
    US4392735A|1983-07-12|Magnetic brush developing apparatus
    JP3788390B2|2006-06-21|Grit, scorotron type charger, charged body device and image forming apparatus
    US5608512A|1997-03-04|Fixing device having a pivotally movable separating member
    GB2104003A|1983-03-02|A non-mechanical printer having an image transfer station at which a pressure bar is provided to urge a web of image receiving material towards an image carrier
    US6168150B1|2001-01-02|Sheet feeder unit
    US4796880A|1989-01-10|Skive with anti-gouge stiffener
    US4660504A|1987-04-28|Tensionable skive for magnetic brush application
    JP3410783B2|2003-05-26|Developing device
    JP6995509B2|2022-01-14|Fixing device
    US5130753A|1992-07-14|Electrophotographic copying apparatus
    JP3352609B2|2002-12-03|Drum unit and ground plate used for drum unit
    JP2005164826A|2005-06-23|Developing device
    US6917781B2|2005-07-12|Developer regulating member for an image forming apparatus
    US4491409A|1985-01-01|Electrographic copy paper support
    同族专利:
    公开号 | 公开日
    FR2291938A1|1976-06-18|
    NL7512824A|1976-05-24|
    MX143308A|1981-04-14|
    JPS5174637A|1976-06-28|
    FR2291938B1|1979-07-06|
    CA1051935A|1979-04-03|
    GB1485026A|1977-09-08|
    US3992000A|1976-11-16|
    DE2547099A1|1976-05-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR469466A|1913-03-13|1914-08-01|Peter Schmitz|Face sheet lifter, acting on the posterior end of the printed sheet and leading the sheet to a conveyor device, for rapid printing and lithographic presses|
    US3578859A|1969-07-03|1971-05-18|Xerox Corp|Mechanical stripping apparatus|
    US3827394A|1971-02-15|1974-08-06|Ricoh Kk|Developer apparatus|
    US3885786A|1972-04-24|1975-05-27|Xerox Corp|Stripper finger|USD248482S|1976-04-19|1978-07-11|Esterline Augus Instrument Corp.|Chart stripping finger|
    DE2813777C2|1977-04-01|1982-06-03|Sharp K.K., Osaka|Copy paper stripping device for copier machines|
    JPS6160431B2|1977-04-22|1986-12-20|Sharp Kk|
    US4219270A|1979-08-29|1980-08-26|Xerox Corporation|Reproducing apparatus|
    US4387981A|1980-12-23|1983-06-14|Nashua Corporation|Sheet stripping apparatus and method|
    US4511238A|1983-07-13|1985-04-16|Savin Corporation|Traversing, intermittently contacting sheet pickoff for electrophotographic copier|
    JPH0449109B2|1983-09-06|1992-08-10|Sharp Kk|
    US4806985A|1986-07-11|1989-02-21|Xerox Corporation|Stripper fingers|
    US4796880A|1986-12-29|1989-01-10|Eastman Kodak Company|Skive with anti-gouge stiffener|
    US4755848A|1987-09-08|1988-07-05|Eastman Kodak Company|Skive with anti-gouge stiffener|
    US5117540A|1990-09-24|1992-06-02|Richard R. Walton|Longitudinal compressive treatment of web materials|
    US5532810A|1994-11-08|1996-07-02|Eastman Kodak Company|Fuser roller skive mechanism having anti-gouging skive fingers|
    GB9426174D0|1994-12-23|1995-02-22|Xerox Corp|Electrically biassed sheet stripping apparatus|
    EP0782968B1|1995-12-18|2001-10-17|Heidelberger Druckmaschinen Aktiengesellschaft|Method and devices for holding substrates on a conveyor belt of a printing machine|
    US6137982A|1999-08-18|2000-10-24|Olympus America, Inc.|Fuser stripper apparatus|
    US6735412B2|2002-10-04|2004-05-11|Nexpress Solutions Llc|Capillary micro-groove skive fingers|
    JP5047317B2|2010-01-29|2012-10-10|シャープ株式会社|Fixing device and image forming apparatus including the same|
    DE102014006253A1|2014-04-28|2015-10-29|Giesecke & Devrient Gmbh|stripping|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB5030774A|GB1485026A|1974-11-20|1974-11-20|Sheet feeding apparatus|
    [返回顶部]