• 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:
    Apparatus for aligning a travelling sheet (20) of paper against a reference edge (23) parallel to the direction (24) of sheet travel, comprises a first roll (21) skewed towards the reference edge (23) in the direction (24) of sheet travel and a mating roll (22) on the opposite side of the sheet travel path skewed oppositely to the first roll (21) away from the reference edge (23) in the direction (24). The coefficient of friction of the first roll (21) is higher than the coefficient of friction of the second roll (22), so that the paper is moved into the reference edge with a controlled small resultant force. The arrangement maintains a high forward drive force on the paper while minimising the edge force tending to crumple the paper when in contact with the reference edge.
    公开号:SU919588A3
    申请号:SU782705016
    申请日:1978-12-28
    公开日:1982-04-07
    发明作者:Хантли Роудс Джон (Младший)
    申请人:Интернэшнл Бизнес Машинз Корпорейшн /Фирма/；
    IPC主号:
    专利说明:

    (5t) DEVICE FOR ADJUSTING SHEET
    one
    The invention relates to leveling rollers turned relative to one another and can be used in the printing industry, in particular in copy machines.
    A device for leveling sheet material is known, comprising a guide arranged parallel to the path of sheet movement, the driving and driven rollers on mutually intersecting horizontal axes, the leading axis of which is mounted at an acute angle to the guide 1.
    A disadvantage of the known device is the low leveling efficiency of the sheet, since the existing structure does not exclude crushing of the sheet edge and does not ensure its reliable alignment.
    The purpose of the invention is to increase the efficiency of sheet alignment.
    This goal is achieved by the fact that in the device for alignment of sheet material containing on MATERIAL
    the guide, parallel to the sheet movement path, the leading and driven rollers on mutually intersecting horizontal axes, the leading axis 5 of which is mounted at an acute angle to the guide, the angle between the axes of the rollers corresponds to 30 °, while the driving roller is made of material with a coefficient of friction
    10 exceeding the coefficient of friction of the driven roller.
    FIG. 1 shows a device for leveling sheet material in a copying machine; in fig. 2 15 the same fragment; in fig. 3 is the same plan view; in fig. 4 - vector diagram of forces.
    The device for aligning the sheet material comprises a guide 1 located parallel to the path of the sheet (shown by the arrow), leading 2 and driven 3 rollers on mutually intersecting horizontal axes and 5. Axis k of leading
    权利要求:
    Claims (2)
    [1]
    25 Rlica 2 is mounted at an acute angle d to the guide 1. The angle (b between the axles and 5 rollers 2 and 3 corresponds to 30 °, while the driving roller 2 is made of a material with a coefficient of friction greater than the coefficient of friction of the driven roller 3. The proposed device using the lead roller 2 and the driven roller 3, it pushes the paper 6 towards the guide 1, by which the paper is aligned along the edge. In the diagram shown in Fig. k, it is clear that the vector 7 of braking force is opposite to the direction of movement of the sheet indicated in Fig. 3 with an arrow Vector 8 shown in the diagram is the force generated by the driven roller 3. In order for the paper 6 to slide in the gap between the rollers 2 and 3, the force vector 9 of guide line 1 and the force vector 8 provide the forces necessary to overcome the driving force. forces 10. Due to the installation of the driven roller at an angle, the force vector 9 is smaller than it would otherwise. Suppose, for example, that the driven roller 3 is made of the same material as the driving roller 2, and then the force value slide the paper should be equal to The player 10, and therefore the paper would not move in contact with the guide 1 and nothing would prevent the loss of its contact with the guide 1. Accordingly, the value of the force vector generated by the driven roller must be kept smaller. Therefore, the friction coefficient of the driven roller 3 is reduced to a value less than the corresponding value for the driving roller.
    [2]
    2. Thus, the force indicated by vector 8 is able to overcome the force vector generated by the driven roller. From here, the reaction force of 9 8 of the guide 1 that remains on the sheet of paper should have only the magnitude of the vector 9. It is obvious that if the coefficient of friction of the support roller increases, then the value of the vector of force 9 can decrease until such time as that sminani paper moving in contact with the guide. However, if due to the device proposed in FIG. 2 and 3) the forces that tend to crease the paper are minimized, while the driving force is retained, which is necessary to ensure the paper moves in the desired direction. Thus, the proposed system provides sufficient strength to move the heaviest paper grades, while the crease force of the paper is minimized and ensures the integrity of the lightest paper grades. Claims An apparatus for leveling sheet material comprising a guide parallel to the sheet movement path, the driving and driven rollers on mutually intersecting horizontal axes, the leading axis of which is mounted at an acute angle to the guide, characterized in that, in order to increase efficiency sheet alignment, the angle between the axes of the rollers corresponds to 30 °, while the driving roller is made of material with a coefficient of friction greater than the coefficient of friction of the driven roller. Sources of information taken into account during the examination 1. U.S. Patent No. 31Q7089, Cl. 271-251,1963.
    FIG. 2
    Fig.Z
    类似技术:
    公开号 | 公开日 | 专利标题
    SU919588A3|1982-04-07|Device for aligning sheet material
    GB1487954A|1977-10-05|Apparatus for inverting a sheet moving in a first direction and causing said inverted sheet to move in a second direction
    EP0096722B1|1987-04-01|A sheet feeding apparatus
    US5383656A|1995-01-24|Single drive nip sheet buffering system using independently driven rolls with different frictional properties
    US3434710A|1969-03-25|Sheet handling apparatus
    CA1072593A|1980-02-26|Wobble-wheel type sheet shingler and deshingler
    GB1388205A|1975-03-26|Diazo copying machine with original recirculating device
    US4874161A|1989-10-17|Sheet transporting apparatus
    US3273886A|1966-09-20|Reverse transport for flexible sheets
    KR850001060B1|1985-07-25|Paper sheet reverse turn device
    US2278518A|1942-04-07|Apparatus for classifying sheets
    GB1424580A|1976-02-11|Sheet feeding apparatus
    US3923298A|1975-12-02|Copying paper feeding device for electronic copying apparatus
    JP4064061B2|2008-03-19|Sheet material conveying device
    EP0311821B1|1991-11-21|Device for transporting documents
    US5494277A|1996-02-27|Universal paper feed
    US4398709A|1983-08-16|Wave generation amplification apparatus for cut sheet paper feeding
    US4060232A|1977-11-29|Controlled slip paper separator
    EP0145495B1|1989-08-02|A sheet decelerating and stopping apparatus
    US5685538A|1997-11-11|Sheet registration around turn
    US4194837A|1980-03-25|Original feed apparatus for electrophotographic copying machine
    US4678177A|1987-07-07|Registering method
    US5483315A|1996-01-09|Apparatus for wet processing photographic sheets
    JPS60228352A|1985-11-13|Paper path switch device of copying machine or the like
    US3596904A|1971-08-03|Multiwidth document stacker
    同族专利:
    公开号 | 公开日
    AU4215978A|1979-07-05|
    EP0002878B1|1980-12-10|
    DE2860299D1|1981-02-19|
    US4179117A|1979-12-18|
    JPS5495463A|1979-07-27|
    CA1079674A|1980-06-17|
    ES245589Y|1980-06-16|
    JPS5511586B2|1980-03-26|
    EP0002878A1|1979-07-11|
    ES245589U|1980-01-01|
    AU523754B2|1982-08-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2676371C1|2015-07-27|2018-12-28|ДжиАрДжи БЭНКИНГ ЭКВИПМЕНТ КО., ЛТД.|Method and device for eliminating skew of papers, and device for financial self-service|DE499323C|1929-06-26|1930-06-05|Koenig & Bauer Schnellpressfab|Device for removing paper dust from the paper webs in rotary printing machines|
    US2672337A|1952-04-04|1954-03-16|United States Steel Corp|Apparatus for automatically centering and aligning moving objects|
    US3040946A|1960-03-24|1962-06-26|Electrarc Inc|Anti-twister for wire or tube stock machine|
    US3107089A|1961-02-27|1963-10-15|Burroughs Corp|Sheet side registration apparatus|
    US3175824A|1962-09-07|1965-03-30|Ibm|Sheet driving and aligning mechanism|
    FR2136840B1|1971-04-09|1974-03-08|Centre Nat Etd Spatiales|
    US3854315A|1973-12-28|1974-12-17|Interlake Inc|Variable width strip conditioner|US4316667A|1980-02-19|1982-02-23|International Business Machines Corporation|Copier and recirculating document feeder|
    CA1162102A|1980-08-04|1984-02-14|Gerald M. Garavuso|Document corner registration system|
    US4381893A|1981-03-19|1983-05-03|Xerox Corporation|Recirculating document lateral registration|
    US4432541A|1981-08-27|1984-02-21|International Business Machines Corporation|Recirculating document feed apparatus and method for aligning documents therein|
    DE3136310C2|1981-09-12|1991-08-14|Develop Dr. Eisbein Gmbh & Co, 7016 Gerlingen, De|
    US4411418A|1982-02-12|1983-10-25|Xerox Corporation|Document corner registration|
    US4462527A|1982-09-09|1984-07-31|Xerox Corporation|Device for lateral registration of computer form documents for copying|
    US4526309A|1982-09-13|1985-07-02|Xerox Corporation|Compatible copying of computer form documents|
    US4621801A|1984-12-06|1986-11-11|Xerox Corporation|Document edge registration system|
    JPS61291344A|1985-06-18|1986-12-22|Canon Inc|Transfer work conveying device|
    US4744554A|1986-10-10|1988-05-17|Pitney Bowes Inc.|Deskewing device for mailing machine|
    USRE33843E|1986-12-22|1992-03-10|Xerox Corporation|Sheet transport and registration apparatus|
    US4744555A|1986-12-22|1988-05-17|Xerox Corporation|Sheet transport and registration apparatus|
    JPS63197818A|1987-02-10|1988-08-16|Toshiba Corp|Cooking apparatus|
    US4775142A|1987-02-26|1988-10-04|Pitney Bowes Inc.|Roller apparatus for side registration of documents|
    JPS63252832A|1987-04-03|1988-10-19|Ricoh Co Ltd|Automatic circulating paper feeder for original|
    US4809968A|1988-03-21|1989-03-07|Xerox Corporation|Side registration with subtle transverse corrugation|
    US4919318A|1988-04-18|1990-04-24|Xerox Corporation|Swing arm roller speed differential web tracking system|
    US4918489A|1989-05-24|1990-04-17|Ricoh Co., Ltd.|Method of supplying recording sheets in image forming apparatus|
    FR2649516B1|1989-07-10|1991-09-27|Dassault Electronique|
    US5065998A|1990-12-19|1991-11-19|Xerox Corporation|Lateral sheet registration system|
    DE4116991A1|1991-05-24|1992-11-26|Kodak Ag|DEVICE FOR STACKING AND ALIGNING STACKED FEEDS|
    JP3093521B2|1993-06-25|2000-10-03|キヤノン株式会社|Sheet transport device|
    US5494277A|1994-09-21|1996-02-27|Lexmark International, Inc.|Universal paper feed|
    US10589950B2|2018-03-29|2020-03-17|Xerox Corporation|Gravity-assisted wall registration system|
    US10370212B1|2018-05-10|2019-08-06|Xerox Corporation|Center registration system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/865,803|US4179117A|1977-12-30|1977-12-30|Paper alignment rollers|
    [返回顶部]