EP0283088A2 - Device for forming a stack of a zigzag folded web - Google Patents

Device for forming a stack of a zigzag folded web Download PDF

Info

Publication number
EP0283088A2
EP0283088A2 EP88200455A EP88200455A EP0283088A2 EP 0283088 A2 EP0283088 A2 EP 0283088A2 EP 88200455 A EP88200455 A EP 88200455A EP 88200455 A EP88200455 A EP 88200455A EP 0283088 A2 EP0283088 A2 EP 0283088A2
Authority
EP
European Patent Office
Prior art keywords
web
side walls
walls
stack
distance
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.)
Ceased
Application number
EP88200455A
Other languages
German (de)
French (fr)
Other versions
EP0283088A3 (en
Inventor
Franciscus Gerardus Martinus Kleverlaan
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.)
Kleverlaan-Snoek Hendrika
Original Assignee
Kleverlaan-Snoek Hendrika
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 Kleverlaan-Snoek Hendrika filed Critical Kleverlaan-Snoek Hendrika
Publication of EP0283088A2 publication Critical patent/EP0283088A2/en
Publication of EP0283088A3 publication Critical patent/EP0283088A3/en
Ceased legal-status Critical Current

Links

Images

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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/1015—Folding webs provided with predefined fold lines; Refolding prefolded webs, e.g. fanfolded continuous forms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/111—Bottom
    • B65H2405/1111—Bottom with several surface portions forming an angle relatively to each other
    • 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
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1123—Folded article or web
    • B65H2701/11231—Fan-folded material or zig-zag or leporello

Definitions

  • the present invention relates to a device for forming a stack of a zigzag folded web, comprising an upward support approximately in the centre.
  • Such a device is known from DE-A-2549165, which describes a support of which in the position of use the top is rounded. This produces the real danger that the front edge of a web of material is going to hit this top in the centre and stick there without moving to one of the sides of the support. The result is that the web can fold double at that point through the weight of the web exerted on the front end thereof. It is also possible that at further loading the end of the web of material will move only partially to one side.
  • the object of the present invention is to avoid this disadvantage.
  • the point of the support is adjoined by a part with a relatively steep incline, followed by a part connected to the flat bottom with a comparatively less steep incline.
  • This succession of inclines also provides for almost automatic folding of the web of mate­rial. This means that, on the one hand, much better stacking is obtained and, on the other, less stringent standards are required for the weake­ning lines for the subsequent folds, so that the web of material is not weakened as much there.
  • the above-described device comprises at least two opposite side walls, the distance between the side walls being essentially equal to the distance between two folds of the web. It has been found that if the individual parts of a web of material are precisely confined, a very even stack is obtained. In order to prevent a web of material from moving over the side walls, the height of at least one of those side walls is made at least the same size as the distance between the two side walls. If a very large stack has to be stored in the tray, the side walls can be provided with means for fitting extensions. The neat stacking is also improved by at least one of the side walls forming an angle of slightly less than 90 degrees with the bottom part and sloping towards the other side wall.
  • At least one of the side walls can be made adjustable relative to the bottom part.
  • Said means can comprise yielding elements hanging down on either side symmetrically relative to the centre.
  • a tray designed in such a way is in particular suitable for the accommodation of a web of computer paper which is folded to sheets along a perforation.
  • Fig. 1 shows schematically and not illustrated in detail a printer 1, from which a paper web 2 is emerging.
  • the paper web is provided with perforations 3.
  • This paper web is meant to fold along these perforations 3 as it goes into the tray 4.
  • the distance between the walls 5 of the tray is made essentially equal to the distance between the fold points of the web of paper 2.
  • the side walls 5 of the tray 4 are tapered slightly upwards. This ensures precise guidance of the stack of paper.
  • an upward curvature 7 is provided near the bottom 6 of the tray. This upward curvature 7 has a sharp point 16 which is adjoined on either side by a face 17 with steep incline, followed by a face 18 with less steep incline.
  • the sharp point 16 forces the end of the paper web coming down in the centre to move either left or right in the drawing. Due to the sharp point 16, it is impossible for the end to stay on it and cause doubling over instead of folding.
  • the shape of faces 17, 18 causes the web of paper 2 to be moved along smoothly and folding takes place more or less automatically. For subsequent sheets less guidance is required but, since the pointed part of upward curvature or support 7 is at least partially passed on through the folded sheets, guidance is still provided.
  • Fig. 2 shows the tray without paper. Apart from the side walls 5, there are other wall parts 8 to prevent the paper from moving sideways. The length of the other wall parts is selected in such a way that it is possible to reach by hand into the space left between the other wall parts to lift up the stack of paper.
  • Fig. 2, and in particular Fig. 2a shows the adjustment mechanism for the side walls 5.
  • This adjustment mechanism comprises a slot 9 which has various parts with larger bore.
  • a bolt 10 comprising a thickened head part 11 and a thinner shank 12 fits into this slot 9.
  • a nut 13 is fixed by means of threading to the bolt.
  • a compression spring 14 and a washer 15 are also present. The spring 14 draws the head 11 downward, and in this position the side wall 5 cannot be moved.
  • the side wall 5 When the head is moved up, the side wall 5 can be moved, since the slot width of slot 9 is greater everywhere than the diameter of shank 12. Adjustment of the side wall(s) 5 is important because for folding in the desired way according to the invention it is important that the length of the paper web 2 between two successive folds should be essentially equal to the width of the tray.
  • Fig. 3 shows an exploded view of the above-described paper tray, in which means 19 are present for controlling the paper web. They comprise frames 20 to which chains 21 are attached. These frames are fixed to the top edge of the wall parts 8. The web of paper material is thereby for­ced to stay in the centre, but as the stack height increases the mobili­ty of the chains 21 means that stacking of the web of material is not impeded.
  • the side walls 5 can be provided with means for the exten­sion thereof, while attachment means can also be present for attaching to a printer or the like.
  • the tray can also be made mobile. All these modifications are within the capability of anyone who is skilled in the art.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Pile Receivers (AREA)

Abstract

In order to ensure correct stacking of a downward-moving web and prevent it from folding double in the wrong way or sticking when it comes down on the bottom provided for it, provision is made for a support which extends from the bottom upwards, and the top of which has a sharp point (16).

Description

  • The present invention relates to a device for forming a stack of a zigzag folded web, comprising an upward support approximately in the centre.
  • Such a device is known from DE-A-2549165, which describes a support of which in the position of use the top is rounded. This produces the real danger that the front edge of a web of material is going to hit this top in the centre and stick there without moving to one of the sides of the support. The result is that the web can fold double at that point through the weight of the web exerted on the front end thereof. It is also possible that at further loading the end of the web of material will move only partially to one side. If the web is provided with weake­ning lines along which it must be folded, the position of these weake­ning lines no longer corresponds to the boundary of the desired stack, so that stacking is either very untidy or does not take place at all, and these is random piling up of the web of material.
  • The object of the present invention is to avoid this disadvantage.
  • This object is achieved in a device of the type described above in that the top of the support comprises a sharp point. This means that when a web of material comes down to one of the sides, its end is forced to move beside this point, so that the above-described problems do not occur. Indeed, the effect described does not apply to the end of the web of material alone, but there is a risk of any folded part which comes down being incorrectly positioned, and this is now eliminated by the invention.
  • In order to guide the web of material further, according to an advantageous embodiment, the point of the support is adjoined by a part with a relatively steep incline, followed by a part connected to the flat bottom with a comparatively less steep incline. This succession of inclines also provides for almost automatic folding of the web of mate­rial. This means that, on the one hand, much better stacking is obtained and, on the other, less stringent standards are required for the weake­ning lines for the subsequent folds, so that the web of material is not weakened as much there.
  • According to another advantageous embodiment, the above-described device comprises at least two opposite side walls, the distance between the side walls being essentially equal to the distance between two folds of the web. It has been found that if the individual parts of a web of material are precisely confined, a very even stack is obtained. In order to prevent a web of material from moving over the side walls, the height of at least one of those side walls is made at least the same size as the distance between the two side walls. If a very large stack has to be stored in the tray, the side walls can be provided with means for fitting extensions. The neat stacking is also improved by at least one of the side walls forming an angle of slightly less than 90 degrees with the bottom part and sloping towards the other side wall.
  • For adaptation to the different sizes of paper, at least one of the side walls can be made adjustable relative to the bottom part. In order to prevent the web of folded material from being stacked in uncontrolled fashion transversely to the direction of movement, there can be further walls which are at right angles to the bottom part and connect the side walls. They can be partially interrupted, which makes it possible to take hold of a stack of folded web material by hand.
  • For obtaining the correct stack in a simple manner, it is also possible to have means for controlling movement of the web of material. Said means can comprise yielding elements hanging down on either side symmetrically relative to the centre. A tray designed in such a way is in particular suitable for the accommodation of a web of computer paper which is folded to sheets along a perforation.
  • The invention will be explained in greater detail below with refe­rence to the examples of embodiments shown in the drawings, in which:
    • Fig. 1 shows a cutaway tray provided with a web of paper disposed near a printer.
    • Fig. 2 shows the tray of Fig. 1 empty and partially cut away, and Fig. 2a shows a detail; and
    • Fig. 3 shows a tray provided with web-controlling means.
  • Fig. 1 shows schematically and not illustrated in detail a printer 1, from which a paper web 2 is emerging.
    The paper web is provided with perforations 3. This paper web is meant to fold along these perforations 3 as it goes into the tray 4. In order to achieve perfect positioning of the web of paper 2 when folded, the distance between the walls 5 of the tray is made essentially equal to the distance between the fold points of the web of paper 2. For the formation of an even better stack, the side walls 5 of the tray 4 are tapered slightly upwards. This ensures precise guidance of the stack of paper. In order to prevent the folds from standing up from the centre of the folded sheets, an upward curvature 7 is provided near the bottom 6 of the tray. This upward curvature 7 has a sharp point 16 which is adjoined on either side by a face 17 with steep incline, followed by a face 18 with less steep incline.
  • If a paper web 2 is introduced, the sharp point 16 forces the end of the paper web coming down in the centre to move either left or right in the drawing. Due to the sharp point 16, it is impossible for the end to stay on it and cause doubling over instead of folding. The shape of faces 17, 18 causes the web of paper 2 to be moved along smoothly and folding takes place more or less automatically. For subsequent sheets less guidance is required but, since the pointed part of upward curvature or support 7 is at least partially passed on through the folded sheets, guidance is still provided.
  • Fig. 2 shows the tray without paper. Apart from the side walls 5, there are other wall parts 8 to prevent the paper from moving sideways. The length of the other wall parts is selected in such a way that it is possible to reach by hand into the space left between the other wall parts to lift up the stack of paper. Fig. 2, and in particular Fig. 2a, shows the adjustment mechanism for the side walls 5. This adjustment mechanism comprises a slot 9 which has various parts with larger bore. A bolt 10 comprising a thickened head part 11 and a thinner shank 12 fits into this slot 9. A nut 13 is fixed by means of threading to the bolt. A compression spring 14 and a washer 15 are also present. The spring 14 draws the head 11 downward, and in this position the side wall 5 cannot be moved. When the head is moved up, the side wall 5 can be moved, since the slot width of slot 9 is greater everywhere than the diameter of shank 12. Adjustment of the side wall(s) 5 is important because for folding in the desired way according to the invention it is important that the length of the paper web 2 between two successive folds should be essentially equal to the width of the tray.
  • Fig. 3 shows an exploded view of the above-described paper tray, in which means 19 are present for controlling the paper web. They comprise frames 20 to which chains 21 are attached. These frames are fixed to the top edge of the wall parts 8. The web of paper material is thereby for­ced to stay in the centre, but as the stack height increases the mobili­ty of the chains 21 means that stacking of the web of material is not impeded.
  • Although the embodiments shown here represent a preferred embodi­ment, it must be understood that many modifications can be made thereto. For example, the side walls 5 can be provided with means for the exten­sion thereof, while attachment means can also be present for attaching to a printer or the like. The tray can also be made mobile. All these modifications are within the capability of anyone who is skilled in the art.

Claims (12)

1. Device for forming a stack of a zigzag folded web, comprising an upward support approximately in the centre, characterized in that in the position of use the top of the support has a sharp point.
2. Device according to Claim 1, characterized in that the point of the support is adjoined by a part with a relatively steep incline, fol­lowed by a part connected to the flat bottom face with a comparatively less steep incline.
3. Device according to one of the preceding claims, comprising at least two opposite side walls, the distance between the side walls being essentially equal to the distance between two folds of the web.
4. Device according to one of the preceding claims, characterized in that the height of said side walls is at least the same size as the distance between said side walls.
5. Device according to one of the preceding claims, characterized in that at least one of said walls forms an angle of slightly less than 90 degrees with the bottom part, so that it slopes towards the other side wall.
6. Device according to one of the preceding claims, characterized in that at least one of said side walls is adjustable.
7. Device according to one of the preceding claims, characterized in that the side walls are provided with means for fitting extensions.
8. Tray according to one of the preceding claims, characterized in that further walls standing perpendicular to the bottom part and connec­ting the side walls are present.
9. Device according to Claim 8, characterized in that at least one of said further walls is partially interrupted.
10. Device according to one of the preceding claims, comprising means for controlling the movement of the web of material.
11. Device according to Claim 10, wherein said means comprise yiel­ding elements hanging down symmetrically on either side relative to the centre.
12. Device according to one of the preceding claims, characterized in that the web of material is a sheet of computer paper, with perfora­tions at the point where it has to be folded.
EP88200455A 1987-03-12 1988-03-08 Device for forming a stack of a zigzag folded web Ceased EP0283088A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700599A NL8700599A (en) 1987-03-12 1987-03-12 BIN SUITABLE FOR ZIG-ZAG FOLDED TO RECORD A TRACK MATERIAL.
NL8700599 1987-03-12

Publications (2)

Publication Number Publication Date
EP0283088A2 true EP0283088A2 (en) 1988-09-21
EP0283088A3 EP0283088A3 (en) 1988-10-05

Family

ID=19849695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200455A Ceased EP0283088A3 (en) 1987-03-12 1988-03-08 Device for forming a stack of a zigzag folded web

Country Status (3)

Country Link
EP (1) EP0283088A3 (en)
JP (1) JPS63252875A (en)
NL (1) NL8700599A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244981A (en) * 1990-06-13 1991-12-18 Northern Data Services Ltd Stacking zig-zag webs
US5242366A (en) * 1989-07-07 1993-09-07 Asahi Kogaku Kogyo Kabushiki Kaisha Mechanism for folding continuous-form sheet
BE1006294A5 (en) * 1992-10-14 1994-07-12 Atep Systems Nv Device for collecting forms of chain.
RU2622333C2 (en) * 2012-03-06 2017-06-14 Панотек Срл Automated machine for fanfolding and stacking strip supplied with notches for bending and made of hard-to-deform material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1288218A (en) * 1968-12-20 1972-09-06
US3944208A (en) * 1974-06-20 1976-03-16 Lloyd Naegeli Vibrating receiving device for folding punch tape
NL7704318A (en) * 1976-04-21 1977-10-25 Siemens Ag DEVICE FOR LAYING A PRE-FOLDED PAPER PATH WITHOUT END IN A PAPER STACKER.
US4358285A (en) * 1979-08-16 1982-11-09 Canon Kabushiki Kaisha Paper folding apparatus
FR2560862A1 (en) * 1984-03-07 1985-09-13 Cii Honeywell Bull Apparatus for the zigzagged folding of a flexible continuous web

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1288218A (en) * 1968-12-20 1972-09-06
US3944208A (en) * 1974-06-20 1976-03-16 Lloyd Naegeli Vibrating receiving device for folding punch tape
NL7704318A (en) * 1976-04-21 1977-10-25 Siemens Ag DEVICE FOR LAYING A PRE-FOLDED PAPER PATH WITHOUT END IN A PAPER STACKER.
US4358285A (en) * 1979-08-16 1982-11-09 Canon Kabushiki Kaisha Paper folding apparatus
FR2560862A1 (en) * 1984-03-07 1985-09-13 Cii Honeywell Bull Apparatus for the zigzagged folding of a flexible continuous web

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242366A (en) * 1989-07-07 1993-09-07 Asahi Kogaku Kogyo Kabushiki Kaisha Mechanism for folding continuous-form sheet
GB2244981A (en) * 1990-06-13 1991-12-18 Northern Data Services Ltd Stacking zig-zag webs
BE1006294A5 (en) * 1992-10-14 1994-07-12 Atep Systems Nv Device for collecting forms of chain.
RU2622333C2 (en) * 2012-03-06 2017-06-14 Панотек Срл Automated machine for fanfolding and stacking strip supplied with notches for bending and made of hard-to-deform material

Also Published As

Publication number Publication date
EP0283088A3 (en) 1988-10-05
JPS63252875A (en) 1988-10-19
NL8700599A (en) 1988-10-03

Similar Documents

Publication Publication Date Title
EP0283088A2 (en) Device for forming a stack of a zigzag folded web
DE1941746C3 (en) Sheet container for an automatic sheet separating device in copiers
EP0590822B1 (en) Printer paper stack-handling apparatus
US3460825A (en) Fan fold stacking apparatus
DE2742447A1 (en) DEVICE AND METHOD FOR TRANSPORTING AND DEPOSITING ZIGZAG-SHAPED FOLDED PAPER TRAILS
EP0987203B1 (en) Device for replenishing the reserve of a pile receiver
US5123893A (en) Passive paper stacker
US5642951A (en) Adjustable continuous feed printer paper collection device
GB2254603A (en) A folding device
DE282352C (en)
US5605528A (en) Paper collector with resilient paper support assembly for facilitating refolding and restacking fanfold paper discharged from a continous form printer or the like
US5069378A (en) Paper dispenser
US4860904A (en) Paper stacker
US5099996A (en) Tray for carton having fan folded paper therein
JPH0111631Y2 (en)
EP1204583B1 (en) Bail assembly
US5806746A (en) Method and apparatus for guiding webs in a web handling system
JPS6261491B2 (en)
DE3404215A1 (en) Device for separating and transporting the top sheet in each case of a pile of sheets or sheet-like articles
US5921406A (en) Passive paper stacker
GB2255925A (en) Foil or film dispenser
US5603683A (en) Paper stacker device for receiving fanfold paper without assistance
US4307829A (en) Paper cutting apparatus
GB2162825A (en) Dispensing carton for interfolded paper sheets
JPS6334101B2 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19890309

17Q First examination report despatched

Effective date: 19890704

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19900520