[특허]Apparatus for slowing down and preventing edge damage on moving sheets

[미국특허] Apparatus for slowing down and preventing edge damage on moving sheets 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65H-029/68
출원번호	US-0268002 (1981-05-28)
발명자 / 주소	Frye Kenneth G. (South Egremont MA) Fitzpatrick Donald C. (Chatham NY) Karis Arthur T. (Lenox MA)
출원인 / 주소	Beloit Corporation (Beloit WI 02)
인용정보	피인용 횟수 : 17 인용 특허 : 5

초록 ▼

Apparatus for the shingling of cut sheets of paper as they pass between conveyance on a high-speed tape conveyor and a low-speed tape conveyor is provided by a two-stage slowdown arrangement. At the first stage, a slowdown mechanism, comprising two rolls arranged respectively above and below each sheet passing through a drop-off area from the high-speed conveyor to the low-speed conveyor, serves to engage the tail portion of the sheet in a nip such that the sheet is slowed down to a speed approximately 30 to 40% of the speed of the high-speed conveyor. In this manner, the lead edge of a next succeeding sheet overlaps with the trailing edge of the nipped sheet in a drop-off area from the high-speed tape conveyor. Downstream of the slowdown rolls is a stop roll which serves to reduce the speed of the immediately preceding sheet to the speed of the low-speed tape conveyor, which is still slower than the speed of the slowdown rolls such that the sheet passing through the nip of the slowdown rolls further overlaps with the immediately preceding sheet. The possibility of lead edge damage to the sheets engaging with a stop roll for shingling is effectively eliminated.

대표청구항 ▼

A method for overlapping cut-size sheets passing in seriatim flow from a relatively high-speed tape conveyor system to a relatively low-speed tape conveyor system, wherein said low-speed tape conveyor has sheet carrying surfaces at a level substantially lower than sheet-carrying surfaces for said high-speed tape conveyor system, comprising: dropping sheets off a delivery end of said high-speed tape conveyor system onto a support plate such that the leading edge of each sheet extends horizontally outward initially and then gently curves toward said support plate and the trailing edge of each sheet bends off said delivery end so as to be snapped down flush with said support plate, delaying each sheet downstream of said support plate by passing each sheet through a slowdown nip formed at the level of the carrying surfaces of said low-speed conveyor by upper and lower roll means such that the trailing edge of each sheet is overlapped by the leading edge of the next succeeding sheet as the leading edge of the next succeeding sheet drops off said high-speed delivery end, slowing each sheet down to the speed of said low-speed tape conveyor system after each sheet has passed through said slowdown nip with a stop roll means rotatably disposed over said low-speed tape conveyor system, and directing each sheet through said slowdown nip at a constant speed less than speed of said high-speed tape conveyor system but greater than the speed of said low-speed tape conveyor such that the trailing edge of each slowed sheet is further overlapped by the leading edge of the next succeeding sheet passing through said slowdown nip.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Bodewein Jakob (Mnchengladbach DEX) Hector Gnter (Ebenau DEX), Apparatus for decelerating and stacking sheets.
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Craemer Robert H. (Cherry Hill NJ) Evans Donald J. (Cherry Hill NJ), Continuous running corrugator.
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Clayson Arthur J. (London GB2) Fox Austin L. (London GB2), Forming overlapped wrappers.
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Matthews Merton L. (Westerly RI), Method of and apparatus for slowing sheets carried by high-speed conveyors before deposit on stationary platforms or low.
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Lauren Unto Antero (05 Karhula SF), Sheet laying apparatus.
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이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Matthias Geske DE; Bernd Hopner DE, Apparatus for converting a file of successive sheets into a stream of partially overlapping sheets.
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Pollock, David Clarke, Apparatus for decelerating and shingling signatures.
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Edward J. Cook CA, Batch sheet feeder.
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Hagemann, G?nther; Herpel, Frank; Peter, J?rgen, Conveying arrangement for sheet quires and method for combining sheet quires.
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Gunschera, Frank; Kerpe, Sven, Delivery for a sheet-processing machine with a braking and smoothing machanism.
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Mack Richard B. (Sophie-Scholl-Str. 14 D-68782 Bruhl DEX) Klenk Rainer (Franziskus-Str. 6 D-68789 St. Leon-Rot DEX) Mc Krell Thomas (428 Washington Rd. Rye NH 03870), Device for removing copies diverted from a conveyed stream thereof.
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Jeske Erwin (Neuffen DEX) Schaich Walter (Neuffen DEX) Hartmann Uwe (Neuffen DEX), Device for retarding sheet stacks.
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Gafner, Jeffrey U., Dual modulated vacuum shingler.
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Wada Kenichi (Osaka JPX), Duplex copying system.
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Brge Norbert (Wald CHX), Method and apparatus for forming an imbricated formation of printed products arriving in an imbricated stream.
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Speller,Michael, Method and apparatus for overlapping sheets in a sheet feeder and providing the overlapped sheets to a printing press.
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Speller,Michael, Method and apparatus for overlapping sheets in a sheet feeder and providing the overlapped sheets to a printing press.
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Stemmle, Denis J., Method and system for high speed digital metering using overlapping envelopes.
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Stemmle,Denis J., Method and system for high speed digital metering using overlapping envelopes.
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Littleton Francis J., Non marking slow down apparatus.
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Steven Andrew,GBX, Sheet settling system.
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Hirohata Atsuhisa,JPX, Sheet-stacking device, suction conveyor, and suction belt for sheet stackers.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Apparatus for slowing down and preventing edge damage on moving sheets 원문보기