EP0374826A1 - Entstapler für flache Gegenstände - Google Patents

Entstapler für flache Gegenstände Download PDF

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Publication number
EP0374826A1
EP0374826A1 EP89123449A EP89123449A EP0374826A1 EP 0374826 A1 EP0374826 A1 EP 0374826A1 EP 89123449 A EP89123449 A EP 89123449A EP 89123449 A EP89123449 A EP 89123449A EP 0374826 A1 EP0374826 A1 EP 0374826A1
Authority
EP
European Patent Office
Prior art keywords
support piece
edge
cover
pressure
blade
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.)
Withdrawn
Application number
EP89123449A
Other languages
English (en)
French (fr)
Inventor
Patrick Savalle
Simon Uzan
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.)
ALE International SAS
Original Assignee
Alcatel Business Systemes SA
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 Alcatel Business Systemes SA filed Critical Alcatel Business Systemes SA
Publication of EP0374826A1 publication Critical patent/EP0374826A1/de
Withdrawn legal-status Critical Current

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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
    • B65H3/46—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
    • B65H3/523—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned over articles separated from the bottom of the pile
    • B65H3/5238—Retainers of the pad-type, e.g. friction pads
    • 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
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile

Definitions

  • the present invention relates to devices for processing flat articles presented in a stack. It relates more particularly to the separator systems, called destackers, which equip such devices.
  • the articles to be treated are received in a stack in storage stores.
  • a destacker removes the items from the stack one by one for individual processing.
  • the destackers comprise at least one pick-up roller and at least one retaining element, which are mounted on either side of the outlet of articles from the store.
  • the function of the pick roller is to drive the bottom article of the stack.
  • the essential function of the retaining element is to oppose the simultaneous removal of multiple items.
  • this article For driving the lower article out of the magazine, this article must be applied under pressure against the drive roller. When it is collected, it tends to carry with it the items that are immediately above it.
  • the retaining element forms a pad which retains these articles immediately above and allows the removal of only the lower article.
  • the patent FR-A-85 15 241 having for title "Distributor of sheets with friction, in particular for automatic copier", describes a destacker of the type referred to above. It has a horizontal support for a stack of documents, equipped with stack advance means and equivalent to an article store. It comprises several pairs, each with a roller and a shoe, mounted transversely at the outlet of the articles. A first couple is said to be training. Its pebble drive has a high coefficient of friction. Its associated training shoe is a hard and smooth piece, with a low coefficient of friction. It has its front face, facing the stack, forming a biased stop for the documents in the store. It has its V-shaped underside widely open, facing the drive roller.
  • the magazine could just as well be tilted to facilitate the advance of the lower document and a few others immediately higher up to the roller-skate pairs.
  • a destacker for flat articles mounted on an article outlet from a storage magazine, and comprising an article driving drum, a flexible article retaining pad held by one of its edges on a first edge of a rigid support part and having a free opposite end part which is free from the opposite face, called the front face, of the support part and applied against the drum on said article outlet, and elastic means pressure of said retaining pad against said drum, characterized in that said elastic pressure means comprise at least one rigid and flat pressure blade, each held and guided in said support piece in a substantially radial direction for the drum and urged by elastic means for the pressure contact of one of its edges, called the front edge, with said end portion of the flexible shoe and the elastic application in pressure of said flexible shoe cont re the roller.
  • said flexible shoe defines a central tongue and two lateral tongues and the pressure blades for these tongues act for a first of the blades on the single central tongue and for a second of the blades in common on the only tongues side.
  • the support part equipped with the retaining pad and elastically biased pressure blades constitutes a unstacking module removably mounted on a cover opening of a frame carrying said drum.
  • the destacker for flat articles comprises an assembly called unstacking module 1 and a drum or drive roller 2.
  • This module 1 and the roller 2 are associated and mounted at the end of 'a magazine 3 for storing articles 4, on either side of magazine 3. They define, at the end of this magazine, an outlet 5 for the articles that they maintain in the absence of operation of the destacker resulting, and that they take one by one for the treatment of individual articles, during the operation of the destacker.
  • the magazine 3 is inclined for the natural advance of the lower articles which are stored there, on the outlet 5 and up to the roller 2 and unstacking module 1.
  • the cover 7 is articulated around an axis 6A, at the bottom of the main chassis 6. It is locked on the upper part of the main chassis, on the lateral sides of the magazine, substantially at the outlet of the articles from the magazine; it gives free access to the store, in particular for its loading.
  • Their locking means are as such known, they are constituted by complementary lugs or by locking screws and have not been shown. They are unlockable for opening the front cover then actuated around its hinge axis 6A.
  • This cover 7 has been represented in FIG. 1, in its open position, in fine lines, and in its closed position.
  • the arrow 7A symbolizes its actuation during closing.
  • the unstacking module is also removable in the cover 7.
  • the cover has a housing 70 for the module 1.
  • This housing is provided in the upper part of the cover. , facing the roller 2 and thereby having an arcuate profile matching the peripheral section opposite the roller.
  • On the cover there has been designated by the reference 71, this arcuate upper part, the inner face of which is concave to escape the roller; the upper edge of the cover allowing it to be locked or unlocked on the main frame 6 has also been designated on the cover for the reference 72, by the reference 73 its lower part, which extends the arcuate part downwards and is substantially flat , and by the reference 74 its lower edge or foot ensuring the maintenance of the cover on the axis 6A.
  • a set of substantially continuous and said vertical ribs 71A and 73A is provided, between the upper 72 and lower 74 edges, on the parts 71 and 73, respectively.
  • Two other so-called longitudinal ribs 71B and 73B are provided at the bottom of the upper part and at the transition between the upper and lower parts, respectively, still on the outer face of the cover.
  • the arrow 1A illustrates the insertion of the unstacking module 1 into its housing 70.
  • the housing 70 is arranged and the unstacking module 1 equipped accordingly.
  • the unstacking module 1 has on one side along its length, a flat tab 10 known as attachment, in particular for its retention in the housing.
  • This tab 10 defines one of the edges said upper edge 10A of the module in its housing.
  • This upper edge is rounded along its length.
  • It has two terminal fingers 11 which extend it from one side and the other to be protruding.
  • the tab 10 and its two terminal fingers 11 on its upper edge 10A are seen more clearly in FIG. 2.
  • the fingers 11 are cylindrical and define the axis of articulation of the unstacking module 1 in its housing 70. They have the one and the other two opposite flats 11A, corresponding substantially to the faces of the tab 10, their end 11B is cylindrical, as also seen clearly in FIG. 2.
  • the two ribs 71A Correspondingly in the housing 70, the two ribs 71A, slightly recessed in its upper part, have a terminal allowance 75 coming to border the housing.
  • the two opposite thicknesses are identical and each has a notch 76.
  • the two notches are face to face and open in the housing 70. They also have an open end 76A on the inside of the cover 7, for the insertion of the fingers 11 of the unstacking module as illustrated by arrow 1B. Their opposite end 76B is almost closed and of circular section for the retention of the fingers 11 and the articulated holding of the unstacking module 1.
  • Each of the notches is of U-shaped section, the ends of the branches of which are folded back and form re-entrant edges 76C . These re-entrant edges are truncated at the end 76B of the notch.
  • the unstacking module is introduced into its housing from the inside of the cover then open; the fingers 11 are inserted into the access ends 76A of the notches 76, the unstacking module is then transverse to the cover.
  • the re-entrant edges 76C of the notches 76 constitute a slide for the flats 11A of the fingers, thus guided until they reach the end 76B of the notches.
  • the truncated inside edges 76C allow the free rotation of the unstacking module on the axis defined by its fingers, for its tilting in its housing.
  • Maintaining the unstacking module 1 in its housing is provided by two latching tabs 12 provided on the lower edge 13 of the unstacking module, opposite the tab 10. It is also provided by a cross member 77 inside the housing 70, the along its lower edge and substantially between the two longitudinal ribs 71B and 73B.
  • This crosspiece 77 has two openings 77A for the latching tabs 12.
  • the lower edge 70A of the housing 70 is chamfered on the side of the inner face of the cover, to escape the latching lugs 12, when the unstacking module rocks around. its axis for its establishment and its maintenance in its housing.
  • the latching tabs 12 hook through the openings 77A on the crosspiece 77, coming from the outside face of the cover.
  • the inner face of the cover, on its part 71 receiving the unstacking module 1, constitutes a reference face for positioning the unstacking module facing the roller 2.
  • a stop 78 adjustable from the outside face of the cover, receives against it the lower edge 13 of the unstacking module.
  • This stop 78 is shown constituted by a screw received in the cross member 77, substantially in the middle.
  • This stop 78 and the latching tabs 12 formed on the lower edge 13 oppose any movement of the unstacking module in its housing.
  • the unstacking module 1 occupies a precise position facing the drum 2 and at the end of the magazine 3, when the cover is closed. Its removal is easy to achieve by simply detaching its latching tabs. This unstacking module, removable and precise positioning and easy to find, can be changed by the user without any external intervention.
  • the unstacking module 1 comprises a flexible retaining pad 20, on a so-called front face of the module, corresponding to the inner face of the cover 7 and coming against the periphery of the roller 2.
  • This flexible retaining pad has a high coefficient of friction, higher than that of the sheets between them, it is for example made of elastomer. It is divided into a central tongue 21 and two slightly narrower side tabs 22, by two slots 23 and 24 open on the so-called lower edge of the pad.
  • the flexible pad 20 is carried by a rigid support piece 30.
  • This support piece 30 belong the aforementioned flat lug 10 for attachment, with the two fingers 11 which extend the upper edge 10A, and the aforementioned snap lugs 12 formed on the opposite lower flat edge 13.
  • the flexible pad 20 is fixed by its upper edge 20A not split, against the flat tab 10. It is fixed there by screws 25, inserted in a retaining strip 26 and, through the upper edge of the shoe 20, in the flat tab 10, in the vicinity of its edge 10A.
  • the flexible shoe 20 extends by free elsewhere opposite the support piece 30, practically up to its flat lower edge 13. It naturally remains at a distance from the face 30A of the support piece 30, which is opposite it, said front face, in the absence of external action exerted on it, in particular by the roller 2. To this end, the front face 30A of the support part has a concavity substantially identical to that of the internal face of the cover 7, on his part 71.
  • An equally flexible plate 40 is associated with the retaining pad 20 and mounted with it on the support part 30. It has a low coefficient of friction and is called sliding, its surface is particularly smooth; it is for example made of plastic. It is attached to the outside of the retaining pad 20.
  • the plate 40 is divided into a central strip 41 and two lateral strips 42 by two slots and / or cutouts 43, 44.
  • the strips have the same substantially width as the respective tongues of the retaining pad 20 to which they match, but their length is less.
  • the central strip 41 is also shorter than the two lateral 42.
  • the plate 40 is attached to the outside against the retaining pad 20 and is fixed with it by the screws 25 also passing through its upper edge 40A unsplit.
  • the support piece is also used for mounting and maintaining a pressing mechanism 50, with pressure blades, for the retaining shoe 20.
  • this mechanism is with a flat pressure blade 51 for the central tongue. 21 of the shoe and flat pressure blade 52 for the lateral tabs 22. It further comprises a spring 53 for the blade 51 and a spring 54 for the blade 52, urging the pressure blades in the support part 30 which receives them towards the retaining pad.
  • the blade 51 which is shorter, has a longitudinal edge, the main part 51A of which is V-shaped and protrudes at its truncated ends 51B.
  • the blade 52 on the other hand has on its corresponding longitudinal edge, the two end portions 52A of this edge which are of V-shaped section and projecting from the truncated intermediate part 52B.
  • This truncated intermediate part 52B corresponds to the width of the central tongue 21, so as to have no effect on it.
  • the blades 51 and 52 have on their opposite edge a small enlarged base 51C or 52C, depending on the blade, as well as a finger 51D or 52D projecting under this base. The finger is used to hold the corresponding spring 53 or 54 against the base of the blade in question.
  • the support piece 30 comprises, for the mechanism 50, two parallel windows 31 and 32 for receiving the projecting edges 51A, 52A of the blades 51 and 52. Each of these windows is of length corresponding to that of the blade that it receives.
  • this same support part 30 includes a housing 33 for the blades. The housing is defined on its rear face 30B, between two lateral shoulders 34. It is slightly narrower than the blades considered according to their length.
  • the windows 31, 32 open into this housing and each have their ends extending partly in the thickness of the shoulders 34, forming there guide grooves for the blade corresponding.
  • These grooves are such as the groove 35, illustrated in FIG. 2 in the single visible shoulder 34, opening at one end of the window 32. They give a substantially radial direction to each pressure blade opposite the roller 2, as it appears in Figure 3 by the dashed lines 50A, 50B.
  • the support part 30 is slightly less thick than the height of the blades.
  • Each blade brought into abutment by its base 51C or 52C against the face 30B, under the edges of the window which receives it, thus has its edge 51A or 52A which projects from the face 30A.
  • a cover 37 closes the housing 33. It is fitted against the shoulders 34 and is fixed by screws 38 to them.
  • This cover also retains the springs 53 and 54, for the elastic mounting of the blades. It receives for this purpose two hollow screws 39 coming, through tapped holes 39A from its central part, to open into the housing 33. Each of the screws receives one of the springs 53, 54 also mounted on the finger 51D or 52D and coming into abutment against the base of the corresponding blade. These springs urge the blades to protrude through the windows. By their compression using the corresponding screw 39, they more or less strongly oppose the elastic erasure of the projecting edges 51A and 52A of the blades in their respective windows 31 and 32.
  • the support piece 30 has, in addition, on its front face 30A, a small central shoulder 36, above the windows 31 and 32.
  • This shoulder 36 defines a sharp edge 36A, at a short distance from the window 31 and substantially on its length.
  • This sharp edge 36A is of lesser height than that of the projecting edge 51A of the blade 51, in the absence of any action other than that of the spring 53 on this blade.
  • This shoulder 36 fades continuously on the flat tab 10 of the part 30. Its sharp edge 36A limits the possible withdrawal of the projecting edge 51A of the blade 51 in the window 31.
  • FIG. 3 shows this unstacking module 1, seen in central section against the roller 2 with which it cooperates on the outlet 5 of the magazine 3.
  • the pressure blades 51 and 52 define on the tongues 21 and 22 two successive stages of separation on the periphery of the roller, which are offset radially and axially one and the other.
  • the effect of each of the blades retains the same radial direction, along the dashed lines 50A and 50B .
  • the resulting destacker consequently presents an almost isostatism -perfect.
  • the smooth plate 40 avoids the retention of the front edges of the documents present in the magazine 3, just upstream from the effect of the pressure blades on the retaining pad 20
  • the shoulder 36 and the edge 36A make it possible to limit the engagement of an excessive number of documents between the roller 2 and the retaining pad, just upstream from the support line of the central tongue against the stone.
  • the unfolding module 1 mounted itself against the stop screw 78 ( figure 1) cannot be lifted and retains the same efficiency in front of the roller 2.
  • the different tabs formed on the flexible retaining pad can be independent and the central tab and the lateral tabs can have different adhesion coefficients.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP89123449A 1988-12-20 1989-12-19 Entstapler für flache Gegenstände Withdrawn EP0374826A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8816820 1988-12-20
FR8816820A FR2640602B1 (fr) 1988-12-20 1988-12-20 Depileur d'articles plats

Publications (1)

Publication Number Publication Date
EP0374826A1 true EP0374826A1 (de) 1990-06-27

Family

ID=9373177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123449A Withdrawn EP0374826A1 (de) 1988-12-20 1989-12-19 Entstapler für flache Gegenstände

Country Status (2)

Country Link
EP (1) EP0374826A1 (de)
FR (1) FR2640602B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445029A1 (de) * 1990-03-02 1991-09-04 Societe D'applications Generales D'electricite Et De Mecanique Sagem Papierbogenzuführvorrichtung mit Andrucksohle
US5273269A (en) * 1990-07-06 1993-12-28 Canon Kabushiki Kaisha Sheet feeding apparatus
US5273267A (en) * 1990-11-16 1993-12-28 Develop Dr. Eisbein Gmbh & Co. Copying machine comprising a deflecting device
EP0771750A2 (de) * 1995-11-02 1997-05-07 Sharp Kabushiki Kaisha Automatische Bogenzuführvorrichtung
EP2413291A1 (de) * 2010-07-30 2012-02-01 Neopost Technologies Vorrichtung zur Auswahl von losen Postartikeln

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457507A (en) * 1980-12-20 1984-07-03 Tokyo Shibaura Denki Kabushiki Kaisha Sheet feeding apparatus
DE3439844A1 (de) * 1983-09-14 1985-05-09 Ricoh Co., Ltd., Tokio/Tokyo Automatische blattzufuehreinrichtung
FR2588537A1 (fr) * 1985-10-14 1987-04-17 Telephonie Ind Commerciale Distributeur de feuilles a frottement, notamment pour copieur automatique.
EP0280210A2 (de) * 1987-02-23 1988-08-31 Sharp Kabushiki Kaisha Papiertransportsystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457507A (en) * 1980-12-20 1984-07-03 Tokyo Shibaura Denki Kabushiki Kaisha Sheet feeding apparatus
DE3439844A1 (de) * 1983-09-14 1985-05-09 Ricoh Co., Ltd., Tokio/Tokyo Automatische blattzufuehreinrichtung
FR2588537A1 (fr) * 1985-10-14 1987-04-17 Telephonie Ind Commerciale Distributeur de feuilles a frottement, notamment pour copieur automatique.
EP0280210A2 (de) * 1987-02-23 1988-08-31 Sharp Kabushiki Kaisha Papiertransportsystem

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445029A1 (de) * 1990-03-02 1991-09-04 Societe D'applications Generales D'electricite Et De Mecanique Sagem Papierbogenzuführvorrichtung mit Andrucksohle
FR2659071A1 (fr) * 1990-03-02 1991-09-06 Sagem Dispositif d'alimentation d'une machine en feuilles de papier, a semelle de pression.
US5273269A (en) * 1990-07-06 1993-12-28 Canon Kabushiki Kaisha Sheet feeding apparatus
US5273267A (en) * 1990-11-16 1993-12-28 Develop Dr. Eisbein Gmbh & Co. Copying machine comprising a deflecting device
EP0771750A2 (de) * 1995-11-02 1997-05-07 Sharp Kabushiki Kaisha Automatische Bogenzuführvorrichtung
EP0771750A3 (de) * 1995-11-02 1998-04-15 Sharp Kabushiki Kaisha Automatische Bogenzuführvorrichtung
EP2413291A1 (de) * 2010-07-30 2012-02-01 Neopost Technologies Vorrichtung zur Auswahl von losen Postartikeln
US8517166B2 (en) 2010-07-30 2013-08-27 Neopost Technologies Mailpiece selector device for selecting mixed mailpieces

Also Published As

Publication number Publication date
FR2640602B1 (fr) 1991-06-07
FR2640602A1 (fr) 1990-06-22

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