US20080179816A1 - Separator for separating envelopes from a stack - Google Patents
Separator for separating envelopes from a stack Download PDFInfo
- Publication number
- US20080179816A1 US20080179816A1 US12/023,433 US2343308A US2008179816A1 US 20080179816 A1 US20080179816 A1 US 20080179816A1 US 2343308 A US2343308 A US 2343308A US 2008179816 A1 US2008179816 A1 US 2008179816A1
- Authority
- US
- United States
- Prior art keywords
- deflecting surface
- envelope
- separating
- feeding path
- feeding
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/52—Friction retainers acting on under or rear side of article being separated
- B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
- B65H3/5215—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned under articles separated from the top of the pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/81—Rigidity; Stiffness; Elasticity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1916—Envelopes and articles of mail
Definitions
- the invention relates to a separator for separating envelopes from a stack.
- separators for separating sheets from a stack by bending sheets are described in European patent application 0 615 937, U.S. Pat. No. 6,883,798 and Japanese patent application 632 888 41.
- a feeding roller is positioned relative to a sheet holder for contacting an outer sheet of a stack and for exerting a friction force onto the sheet for urging the sheet in a direction tangential to the circumference of the roller.
- a deflecting surface is located spaced from the contact area in the tangential direction and extends at an angle to the sheet to be separated for deflecting a leading edge of the sheet in the separating position as it is urged past the deflecting surface.
- the separation is enhanced by the stiffness of the sheets that refrains sheets from passing through the curved passage bound by the deflecting surface.
- this object is achieved by providing a separator for separating envelopes from a stack, consisting of a holder including a support, for holding the stack with an outer one of the envelopes in a separating position in a separating plane, at least one feeding roller having a circumference and positioned relative to the holder for contacting the envelope in the separating position in a contact area of its circumference, and for exerting a friction force onto the envelope for urging the envelope in a direction tangential to the circumference and parallel to the separating plane; and at least one deflecting surface spaced from the contact area in the tangential direction, the at least one deflecting surface extending at an angle to the separating plane at least from a position in the separating plane, for deflecting the leading edge of the envelope in the separating position as it is urged in the tangential direction along the separating plane and passes along the at least one deflecting surface; wherein the at least one feeding roller and the at least one deflecting surface bound a feeding path starting at the
- the feeding roller and deflection surface sections extending from both lateral edges of the feeding path inwardly contact the envelope to be separated in areas along opposite lateral side edges of the envelope.
- the edge areas of the envelope, where the front and rear walls of the envelope are connected to each other, are the stiffest areas of the envelope and therefore have the greatest resistance against bending. Accordingly, by bending the envelope around the feeding roller in these areas, the greatest resistance against passing the deflection surface is caused, which is favorable for avoiding double feeds in which an outer envelope to be separated entrains a next envelope.
- engaging the envelopes in an area where the bending stiffness is greatest makes the separation relatively insensitive to variations in bending stiffness between envelopes and proper adjustment of the deflecting surface. Because the friction coefficient of the deflecting surface relative to the envelopes is uniform across its width, the friction force exerted on the envelope is affected only to a small extent by the width of the envelope.
- FIG. 1 is a schematic perspective view of an example of a separator according to the invention
- FIG. 3 is schematic front view of the separator of FIGS. 1 and 2 ;
- the holder 3 is may be positioned in an inclined orientation, such that the stack of envelopes is leans against the front wall of the holder by gravity.
- the feeding roller 4 has a circumference and is positioned relative to the holder 3 for contacting the envelope 5 in a contact area of its circumference.
- the feeding roller 4 extends from beyond opposite lateral sides of the feeding path inwardly. It therefore contacts the envelope 5 in side areas 15 , 16 along opposite side edges of the envelope 5 .
- the feeding roller 4 and the deflection surface 7 both extends continuously from one lateral side of the feeding path inwardly across the feeding path to the other, opposite lateral side of the feeding path.
- feeding rollers 24 and deflection surfaces 27 of a separator 21 extend along outer zones of the feeding path only.
- the feeding roller 4 is connected to a drive 9 for driving rotation of the roller 4 about a heart line thereof.
- a friction force is exerted onto the outer envelope 5 and urges the envelope in a feeding direction 6 tangential to the circumference of the feeding roller 4 and parallel to the separating plane 10 .
- the friction force exerted by the feeding roller 4 onto the envelope 5 causes the envelope to be urged along the deflecting surface 7 , which causes the envelope to bend out of the separating plane 10 as it is urged along the deflecting surface 7 .
- the circumferential surface of the feeding roller 4 has a friction coefficient relative to paper that is larger than the friction between the envelope in the separating position and the next envelope in the stack of envelopes 2 .
- the maximum friction force exerted on the next envelope in the stack 2 is therefore lower than the maximum friction force the feeding roller 4 can exert on the outer envelope 5 and insufficient for overcoming the resistance encountered when urged against the deflecting surface 7 .
- the feeding roller 4 and the deflection surface 7 extend across the feeding path without interruption, the effect of engaging envelopes in areas along the side edges is achieved for envelopes of widely varying sizes and the bending stiffness of the envelopes is used over the entire width of the envelope.
- the deflecting surface 7 extends at an angle to the separating plane.
- the angle between the deflecting surface 7 and the separating plane is selected such that an outer envelope 5 entrained by the rotating feeding roller 4 is urged past the deflecting surface, whereas friction forces between envelopes, by which a next envelope is entrained are insufficient to overcome the resistance the next envelope encounters when it is deflected by the deflection surface.
- the angle between the deflecting surface and the separating plane is preferably between 85 and 140° and more preferably between 110 and 130°.
- the relatively stiff side edge areas of the envelopes engage different sections of the deflection surface.
- the deflecting surface has a friction coefficient that is uniform across its width, the resistance encountered by envelopes being separated varies only little with width of the envelopes of the envelopes.
- the friction coefficient of the deflecting surface relative to paper is preferably smaller than the friction coefficient between rubber and paper, which is about 1. More preferably, the friction coefficient of the deflecting surface relative to paper is smaller 0.8, so that it is smaller than the friction coefficient between rubber and paper by a substantial amount.
- the friction coefficient of the deflecting surface relative to paper is preferably larger than the friction coefficient between metal and paper, which is about 0.1. to 0.4. More preferably, the friction coefficient of the deflecting surface relative to paper is larger than 0.5 or, more preferably, 0.6, so that it is smaller than the friction coefficient between metal and paper and larger than the friction coefficient between envelopes by a substantial amount.
- the bending distance that is the distance between the point of contact area of the circumference of the feeding roller 4 and the most remote point of contact between the envelope being separated and the deflecting surface 7 , is preferably between 6 and 12 mm, and more preferably between 7.5 and 10.5 mm, for a feeding roller 4 having a diameter of 25 mm.
- the leading edge 8 of the envelope 5 is deflected out of the separating plane 10 , the leading edge 8 is for example led into a nip of a transport track 14 formed by pairs of opposite conveyor belts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
A separator for separating envelopes from a stack has a feeding roller for exerting a force onto the envelope, urging it in a direction tangential to its circumference and parallel to a separating plane, and a deflecting surface for deflecting a leading edge of the envelope as it is urged in the tangential direction. The feeding roller and the deflecting surface bound a feeding path having a width, and starting at the separating position. Both feeding roller and deflecting surface include portions each extending from or from beyond opposite lateral sides of the feeding path inwardly across a lateral outer portion of the feeding path.
Description
- The invention relates to a separator for separating envelopes from a stack. Some examples of separators for separating sheets from a stack by bending sheets are described in European patent application 0 615 937, U.S. Pat. No. 6,883,798 and Japanese patent application 632 888 41. In such separators, a feeding roller is positioned relative to a sheet holder for contacting an outer sheet of a stack and for exerting a friction force onto the sheet for urging the sheet in a direction tangential to the circumference of the roller. A deflecting surface is located spaced from the contact area in the tangential direction and extends at an angle to the sheet to be separated for deflecting a leading edge of the sheet in the separating position as it is urged past the deflecting surface.
- In such separators, the separation is enhanced by the stiffness of the sheets that refrains sheets from passing through the curved passage bound by the deflecting surface. To accommodate for variations in the stiffness of the sheets, it is described to provide moveably attached corner prowls and a pivotably mounted friction pads to ensure reliable separation of the outer sheet from a stack from the next sheets.
- It is an object of the present invention to provide a simple separator, which is specifically suitable for separating envelopes from a stack.
- According to the present invention, this object is achieved by providing a separator for separating envelopes from a stack, consisting of a holder including a support, for holding the stack with an outer one of the envelopes in a separating position in a separating plane, at least one feeding roller having a circumference and positioned relative to the holder for contacting the envelope in the separating position in a contact area of its circumference, and for exerting a friction force onto the envelope for urging the envelope in a direction tangential to the circumference and parallel to the separating plane; and at least one deflecting surface spaced from the contact area in the tangential direction, the at least one deflecting surface extending at an angle to the separating plane at least from a position in the separating plane, for deflecting the leading edge of the envelope in the separating position as it is urged in the tangential direction along the separating plane and passes along the at least one deflecting surface; wherein the at least one feeding roller and the at least one deflecting surface bound a feeding path starting at the separating position, the feeding path having a width; wherein the at least one feeding roller includes two portions extending from or from beyond opposite lateral sides of the feeding path inwardly across at least lateral outer portions of the feeding path; wherein the at least one deflecting surface includes two portions extending from or from beyond opposite lateral sides of the feeding path inwardly across at least lateral outer portions of the feeding path; and wherein the deflecting surface has a friction coefficient uniform across its width.
- The feeding roller and deflection surface sections extending from both lateral edges of the feeding path inwardly contact the envelope to be separated in areas along opposite lateral side edges of the envelope. The edge areas of the envelope, where the front and rear walls of the envelope are connected to each other, are the stiffest areas of the envelope and therefore have the greatest resistance against bending. Accordingly, by bending the envelope around the feeding roller in these areas, the greatest resistance against passing the deflection surface is caused, which is favorable for avoiding double feeds in which an outer envelope to be separated entrains a next envelope. Also, engaging the envelopes in an area where the bending stiffness is greatest makes the separation relatively insensitive to variations in bending stiffness between envelopes and proper adjustment of the deflecting surface. Because the friction coefficient of the deflecting surface relative to the envelopes is uniform across its width, the friction force exerted on the envelope is affected only to a small extent by the width of the envelope.
- Particular elaborations and embodiments of the invention are set forth in the dependent claims.
- Further features, effects and details of the invention appear from the detailed description and the drawings.
-
FIG. 1 is a schematic perspective view of an example of a separator according to the invention; -
FIG. 2 is a schematic side view of the separator ofFIG. 1 ; -
FIG. 3 is schematic front view of the separator ofFIGS. 1 and 2 ; and -
FIG. 4 is a schematic perspective view of another example of a separator according to the invention. - The invention is first described with reference to the example shown in
FIGS. 1-3 . - The
separator 1 according to the present example is equipped with aholder 3 for holding a stack ofenvelopes 2 with anouter envelope 5 in a separating position, afeeding roller 4 and adeflecting surface 7. Thefeeding roller 4 and thedeflecting surface 7 bound a feeding path having a width, and starting at the separating position. - The
holder 3 supports thestack 2 of envelopes to be separated. Theholder 3 has lateral guides 11 (not shown inFIG. 1 ) for maintaining the envelopes positioned by contacting lateral edges of the envelopes. Theguides 11 are adjustable in the lateral direction by rotating a threadedspindle 12, for adapting the mutual distance between theguides 11 to envelopes of different sizes.Stops 13 define the maximum outer position of theguides 11. - The stack of
envelopes 2 is positioned with one edge against a front (downstream) wall of theholder 3 for aligning the envelopes in relation to thefeeding roller 4 and thedeflecting surface 7 and for refraining the envelopes from displacement intransport direction 6. - The
holder 3 is may be positioned in an inclined orientation, such that the stack of envelopes is leans against the front wall of the holder by gravity. - The
holder 3 is provided with a moveable bottom surface and with a biasing member (not shown) for urging thestack 2 against thefeeding roller 4 while maintaining theouter envelope 5 generally in the separatingplane 10. Thus, theouter envelope 5 of thestack 2 is brought in a separating position in a separatingplane 10 at the top of thestack 2, and is positioned with its leadingedge 8 just above the front wall of theholder 3 and near thedeflecting surface 7. - The
feeding roller 4 has a circumference and is positioned relative to theholder 3 for contacting theenvelope 5 in a contact area of its circumference. Thefeeding roller 4 extends from beyond opposite lateral sides of the feeding path inwardly. It therefore contacts theenvelope 5 in side areas 15, 16 along opposite side edges of theenvelope 5. - Spaced from the contact position between
feeding roller 4 and theenvelope 5, thedeflecting surface 7 is positioned, preferably as a continuation of the wall of theholder 3. As thefeeding roller 4, thedeflecting surface 7 extends in lateral direction from beyond the lateral sides of the feeding path inwardly across lateral outer portions of the feeding path. - In the embodiment shown, the
feeding roller 4 and thedeflection surface 7 both extends continuously from one lateral side of the feeding path inwardly across the feeding path to the other, opposite lateral side of the feeding path. In alternative embodiment, shown inFIG. 4 ,feeding rollers 24 anddeflection surfaces 27 of aseparator 21 extend along outer zones of the feeding path only. - Returning to the separator according to
FIGS. 1-3 , thefeeding roller 4 is connected to adrive 9 for driving rotation of theroller 4 about a heart line thereof. When theroller 4 is rotated, a friction force is exerted onto theouter envelope 5 and urges the envelope in afeeding direction 6 tangential to the circumference of thefeeding roller 4 and parallel to the separatingplane 10. - For separating the
envelope 5 from thestack 2, thefeeding roller 4 is driven by thedrive 9 in a sense of rotation indicated by anarrow 19, exerting a friction force onto theouter envelope 5 in the separating position in thefeeding direction 6 tangential to thefeeding roller 4 and parallel to the separatingplane 10. This causes theouter envelope 5 to be displaced in the separatingplane 10 along the feeding path in thefeeding direction 6 and causes the leadingedge 8 of theenvelope 5 to be urged against the deflectingsurface 7 located downstream in thefeeding direction 6 of the contact area of the circumference of thefeeding roller 4. Accordingly, theouter envelope 5 encounters resistance depending on the bending stiffness of theenvelope 5 and increasing as the envelope is bent. - However, the friction force exerted by the
feeding roller 4 onto theenvelope 5 causes the envelope to be urged along thedeflecting surface 7, which causes the envelope to bend out of the separatingplane 10 as it is urged along thedeflecting surface 7. The circumferential surface of thefeeding roller 4 has a friction coefficient relative to paper that is larger than the friction between the envelope in the separating position and the next envelope in the stack ofenvelopes 2. The maximum friction force exerted on the next envelope in thestack 2 is therefore lower than the maximum friction force thefeeding roller 4 can exert on theouter envelope 5 and insufficient for overcoming the resistance encountered when urged against thedeflecting surface 7. - Since the
feeding roller 4 and thedeflection surface 7 engage theouter envelope 5 in its lateral side areas 15, 16, which are the stiffest areas of the envelope, a relatively high resistance is encountered when theouter envelope 5 contacts thedeflection surface 7. This resistance can be overcome easily by the fraction force exerted by thefeeding roller 4, but reliably refrains a next envelope, similarly subjected to bending forces in edge areas where it is relatively stiff, from being entrained by theouter envelope 5. - Furthermore, by bending the envelope along its side edges, it is ensured that envelope is bent over its entire width and not only in the more flexible centre part.
- Since the
feeding roller 4 and thedeflection surface 7 extend across the feeding path without interruption, the effect of engaging envelopes in areas along the side edges is achieved for envelopes of widely varying sizes and the bending stiffness of the envelopes is used over the entire width of the envelope. - The
deflecting surface 7 extends at an angle to the separating plane. The angle between thedeflecting surface 7 and the separating plane is selected such that anouter envelope 5 entrained by the rotatingfeeding roller 4 is urged past the deflecting surface, whereas friction forces between envelopes, by which a next envelope is entrained are insufficient to overcome the resistance the next envelope encounters when it is deflected by the deflection surface. In practice, the angle between the deflecting surface and the separating plane is preferably between 85 and 140° and more preferably between 110 and 130°. - When envelopes of different width are processed, the relatively stiff side edge areas of the envelopes engage different sections of the deflection surface. By providing that the deflecting surface has a friction coefficient that is uniform across its width, the resistance encountered by envelopes being separated varies only little with width of the envelopes of the envelopes.
- The friction coefficient of the deflecting surface relative to paper is preferably smaller than the friction coefficient between rubber and paper, which is about 1. More preferably, the friction coefficient of the deflecting surface relative to paper is smaller 0.8, so that it is smaller than the friction coefficient between rubber and paper by a substantial amount.
- The friction coefficient of the deflecting surface relative to paper is preferably larger than the friction coefficient between metal and paper, which is about 0.1. to 0.4. More preferably, the friction coefficient of the deflecting surface relative to paper is larger than 0.5 or, more preferably, 0.6, so that it is smaller than the friction coefficient between metal and paper and larger than the friction coefficient between envelopes by a substantial amount.
- The bending distance, that is the distance between the point of contact area of the circumference of the
feeding roller 4 and the most remote point of contact between the envelope being separated and thedeflecting surface 7, is preferably between 6 and 12 mm, and more preferably between 7.5 and 10.5 mm, for afeeding roller 4 having a diameter of 25 mm. - Once the leading
edge 8 of theenvelope 5 is deflected out of the separatingplane 10, the leadingedge 8 is for example led into a nip of atransport track 14 formed by pairs of opposite conveyor belts. - Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure, and the appended claims.
Claims (6)
1. A separator for separating envelopes from a stack, comprising:
a holder including a support, for holding the stack with an outer one of the envelopes in a separating position in a separating plane,
at least one feeding roller having a circumference and positioned relative to the holder for contacting the envelope in the separating position in a contact area of its circumference, and for exerting a friction force onto the envelope for urging the envelope in a direction tangential to the circumference and parallel to the separating plane; and
at least one deflecting surface spaced from the contact area in said tangential direction, the at least one deflecting surface extending at an angle to said separating plane at least from a position in the separating plane, for deflecting the leading edge of the envelope in the separating position as it is urged in said tangential direction along the separating plane and passes along the at least one deflecting surface;
wherein the at least one feeding roller and the at least one deflecting surface bound a feeding path starting at said separating position, said feeding path having a width;
wherein the at least one feeding roller includes two portions extending from or from beyond opposite lateral sides of the feeding path inwardly across at least lateral outer portions of the feeding path;
wherein the at least one deflecting surface includes two portions extending from or from beyond opposite lateral sides of the feeding path inwardly across at least lateral outer portions of the feeding path; and
wherein the deflecting surface has a friction coefficient uniform across its width.
2. A separator according to claim 1 , wherein the at least one feeding roller extends continuously across the feeding path.
3. A separator according to claim 1 , wherein the at least one deflecting surface extends continuously across the feeding path.
4. A separator according to claim 1 , wherein the angle between the deflecting surface and the separating plane is between 85 and 140° and preferably between 110 and 130°.
5. A separator according to claim 1 , wherein the friction coefficient of the deflecting surface relative to paper is smaller than 1.
6. A separator according to claim 1 , wherein the friction coefficient of the deflecting surface relative to paper is larger than 0.4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/093,590 US20110198799A1 (en) | 2007-01-31 | 2011-04-25 | Separator for separating envelopes from a stack |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07002072.2 | 2007-01-31 | ||
EP07002072A EP1953102B1 (en) | 2007-01-31 | 2007-01-31 | Separator for separating envelopes from a stack |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/093,590 Continuation US20110198799A1 (en) | 2007-01-31 | 2011-04-25 | Separator for separating envelopes from a stack |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080179816A1 true US20080179816A1 (en) | 2008-07-31 |
Family
ID=38180504
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/023,433 Abandoned US20080179816A1 (en) | 2007-01-31 | 2008-01-31 | Separator for separating envelopes from a stack |
US13/093,590 Abandoned US20110198799A1 (en) | 2007-01-31 | 2011-04-25 | Separator for separating envelopes from a stack |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/093,590 Abandoned US20110198799A1 (en) | 2007-01-31 | 2011-04-25 | Separator for separating envelopes from a stack |
Country Status (2)
Country | Link |
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US (2) | US20080179816A1 (en) |
EP (1) | EP1953102B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100213664A1 (en) * | 2009-02-25 | 2010-08-26 | Murray Richard A | Motor inside pick-up roller |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2123475B1 (en) | 2008-05-20 | 2013-10-09 | Neopost Technologies | Apparatus and method for inserting a postal item into an envelope and moistening the flap of the envelope |
EP2123474B1 (en) | 2008-05-20 | 2011-08-24 | Neopost Technologies | Method and an apparatus for inserting a postal item into an envelope |
WO2014064622A1 (en) * | 2012-10-23 | 2014-05-01 | Neopost Technologies | Spindle for linear actuators; slider slider for linear actuators; combination of a spindle and a slider for linear actuator linear; linear actuator comprising such combination; mail piece handling apparatus comprising such linear actuator |
Citations (2)
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US6168150B1 (en) * | 1996-12-25 | 2001-01-02 | Minolta Co., Ltd. | Sheet feeder unit |
US20050001372A1 (en) * | 2003-07-02 | 2005-01-06 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus |
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JPS59172339A (en) * | 1983-03-18 | 1984-09-29 | Deyupuro Seizo Kk | Paper feeder |
JPS63288841A (en) | 1987-05-18 | 1988-11-25 | Seiko Epson Corp | Separating mechanism of sheet of paper of paper feeding device |
JP2603302B2 (en) * | 1988-06-23 | 1997-04-23 | キヤノン株式会社 | Sheet feeding device |
JPH03102032A (en) * | 1989-09-14 | 1991-04-26 | Canon Inc | Sheet feeder |
JP2936496B2 (en) * | 1990-08-28 | 1999-08-23 | 三田工業株式会社 | Paper feeder for image generator |
JP2660181B2 (en) | 1991-04-09 | 1997-10-08 | 富士写真フイルム株式会社 | Automatic sheet material feeder |
JP2621846B2 (en) * | 1992-02-14 | 1997-06-18 | 三田工業株式会社 | Paper cassette |
JPH07109037A (en) | 1993-03-15 | 1995-04-25 | Nec Corp | Sheet feeder |
US5474288A (en) * | 1994-07-21 | 1995-12-12 | Lo; Thomas Y.-C. | Sheet feeder for computer printer with paper release drag reduction to lengthen life of printer sheet input rollers |
JP3731260B2 (en) * | 1996-09-06 | 2006-01-05 | ブラザー工業株式会社 | Paper feeding device and image recording apparatus including the same |
US5823695A (en) * | 1997-04-10 | 1998-10-20 | Eastman Kodak Company | Imaging apparatus including a guide for guiding a receiver medium therethrough with reduced friction and a guide assembly method therefor |
US5895040A (en) * | 1997-06-20 | 1999-04-20 | Lexmark International, Inc. | Sheet separator |
JPH11246064A (en) * | 1998-03-05 | 1999-09-14 | Fuji Xerox Co Ltd | Recording medium feeding device |
FR2782673B1 (en) * | 1998-09-02 | 2000-11-24 | Neopost Ind | FOLDER / INSERTER WITH SEPARATE INSERT PATH |
TW528713B (en) | 2002-01-23 | 2003-04-21 | Benq Corp | Paper separator structure |
US20060157911A1 (en) * | 2004-11-24 | 2006-07-20 | Hewlett-Packard Development Company, L.P. | Sheet feed apparatus |
-
2007
- 2007-01-31 EP EP07002072A patent/EP1953102B1/en active Active
-
2008
- 2008-01-31 US US12/023,433 patent/US20080179816A1/en not_active Abandoned
-
2011
- 2011-04-25 US US13/093,590 patent/US20110198799A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6168150B1 (en) * | 1996-12-25 | 2001-01-02 | Minolta Co., Ltd. | Sheet feeder unit |
US20050001372A1 (en) * | 2003-07-02 | 2005-01-06 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100213664A1 (en) * | 2009-02-25 | 2010-08-26 | Murray Richard A | Motor inside pick-up roller |
US8302957B2 (en) * | 2009-02-25 | 2012-11-06 | Eastman Kodak Company | Motor inside pick-up roller |
Also Published As
Publication number | Publication date |
---|---|
EP1953102A1 (en) | 2008-08-06 |
EP1953102B1 (en) | 2011-06-08 |
US20110198799A1 (en) | 2011-08-18 |
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Owner name: NEOPOST TECHNOLOGIES, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FEIJEN, FRANSISCUS HERMANNUS;SYTEMA, HERMAN;REEL/FRAME:020819/0665 Effective date: 20071221 |
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Owner name: NEOPOST TECHNOLOGIES, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FEIJEN, FRANSISCUS H.;SYTEMA, HERMAN;REEL/FRAME:021063/0284 Effective date: 20080416 |
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