EP0645335A1 - A device for guiding the leading edge of a sheet to be folded, and a folding machine provided with such device - Google Patents
A device for guiding the leading edge of a sheet to be folded, and a folding machine provided with such device Download PDFInfo
- Publication number
- EP0645335A1 EP0645335A1 EP94110513A EP94110513A EP0645335A1 EP 0645335 A1 EP0645335 A1 EP 0645335A1 EP 94110513 A EP94110513 A EP 94110513A EP 94110513 A EP94110513 A EP 94110513A EP 0645335 A1 EP0645335 A1 EP 0645335A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- laminae
- folding
- folded
- bent
- 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.)
- Granted
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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
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/20—Zig-zag folders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/34—Modifying, selecting, changing direction of displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
- B65H2401/10—Materials
Definitions
- the present invention relates to a device suitable for guiding in sure way in a desired direction, in a paper sheet folding machine, the front edge of a sheet to be multi-folded accordion-like on itself, during the initial sheet folding phase, and to a folding machine provided with such a device.
- Folding sheet machines for sheets having a considerable length and width, suitable to fold said sheets more times on themselves in one or both directions so as to obtain an accordion-like, or zigzag, folded sheet, such as for instance the folding machine described and illustrated in Italian Patent N.2.083.484 and in the corresponding European Patent N.0.171.486 of the same applicant, are already known.
- the main problem in folding machines is to provide a means which may assure that the front edge of the sheet to be multi-folded on itself be surely directed towards an element of the folding unit during the initial phase of forming the first fold and that said fold, as well as the subsequent folds, be perfect, namely that it does not show dog eared corners, wrinkles or other defects due to the front edge of the sheet to be folded which, in the initial phase, could possibly hit against an element of the folding unit or other unwanted obstacle, be it fixed or movable, in that said front edge is not guided in a sure and reliable manner in the desired direction and along the pre-established path.
- the purpose of this invention is therefore to solve such problem in a simpler, less expensive, and most of all more reliable manner.
- This is achieved by providing a shaped guiding assembly which directs in a sure way the front edge of the sheet to be folded in the desired direction and in the required position during the initial phase of forming the first fold, without any possibility of unwanted deviations and without encountering hindrances that might result in the formation of the so-called dog eared corners in the sheet front edge, whereupon said guiding assembly is retracted to a non-operative position, outside the sheet stacking area for the formation of folds, and the folding operation goes on in the usual way, imparting to the sheet, in succession, different folds as required.
- an assembly of guiding laminae for the sheet to be folded, said laminae being made of a suitably shaped elastically flexible material which is endowed with shape memory, and being moved forward parallel to the sheet to be folded in a continuous advancing phase, from a retracted position in a suitable stationary slide housing, which slide is suitably provided parallel to the sheet advancing path, until the laminae reach an area between the folding means where the sheet is to be accumulated in order to form in it bends that are preliminary to forming folds, said elastically flexible laminae having their ends protruding from the slide in a curved or bent shape, said ends having moreover been imparted a shape memory in respect of said bending, said bent shape of the laminae allowing a reliable guide action for the front edge of the sheet to be folded which is directed towards one of the two folding stations so that, after the sheet front edge has reached the first folding station, the assembly of laminae is moved backwards and returned into its slide housing, while the remaining
- the forward and backward movements of the elastically flexible laminae assembly may be carried out by means of various drives of a known type and an embodiment of this invention may consist of a T-shaped, fixed geometry rocker lever, the control rod of which, corresponding to the T stem, is articulated on a slider bar to which is connected the end of each one of the flexible laminae which is opposite in respect of the elastically bent operative end of the laminae which end acts as a guide element for the front edge of the sheet to be folded, the opposite end of said control rod being pivoted, similarly to a first class lever fulcrum, on the central part of a cross-arm of the rocker lever, one end of said cross-arm of the rocker lever being actuated by a drive system for the advancement of the flexible laminae assembly, and the other one being biosed upon by an antagonistic means moving the laminae assembly to the retracted position into the slide housing for the laminae.
- Figures 1, 2 and 3 are schematic vertical elevation views, respectively showing three different operational phases of a folding machine, namely an initial phase of an of a cross-arm 14.
- the opposite end of said laminae 6, indicated by 15, is bent upward in a permanent way, which is to say with a memory of such bent shape, in the direction towards the upper folding roller 10, passing through a suitable slide housing consisting of said lower plate 3 and by a further plate 16 below plate 3.
- the cross arm 14 is articulated on a rocker lever member 17 consisting of a rod 18 and a cross-arm 19 which is pivoted in 20.
- One end of the cross-arm 19 of the rocker lever 17 is connected to a traction-type drive means, such as for instance an electromagnet 21, while the other end of arm 19 of the rocker lever 17 is joined to a return member, such as for instance a spring 22.
- a traction-type drive means such as for instance an electromagnet 21
- a return member such as for instance a spring 22.
- the electromagnet 21 is energized, so that the rod 18 of the rocker lever 17 swings in clockwise direction, reaching the position indicated in this Figure.
- the laminae 6 are caused to move forward to the slide housing consisting of plates 3 and 16, whereby their end 15, which is elastically bent, is situated in the space between the folding rollers 10 and 11 and the tape 7, namely in the position in which the sheet front edge exits from its slide housing consisting of plates 2 and 3 and is directed in a sure way upwards before engaging tape 7.
- said left tape section 7' has an upward movement, and therefore the tape front edge, as a consequence of the upward movement of continuous tape 7 left section 7', tends to be directed upwards as shown in Figure 1, subsequently being compressed and then held between the first upper folding roller 10 and the left section 7' of the continuous tape 7 of folding system 7, 10, 11.
- a set of laminae 6 ( Figure 4), made from an elastically flexible material susceptible to be shaped in a permanent way, namely with shape memory, such as for instance armonic steel or suitable synthetic resins, are mutually connected by means operative cycle, after a first reversal condition of the folding unit, and after a second reversal condition of the folding unit, to obtain an accordion-like or zizag- folded sheet, respectively; and
- Figure 4 is a schematic top plan view of the plurality of laminae made of an elastically flexible material, as seen from above, in combination with a sheet feeding or advancing roller means consisting of a plurality of separate small rollers.
- a folding machine of the known type (as known from the aforecited patents) will first be described in a schematic form, to which the elastically flexible laminae means according to the present invention is provided for surely guiding the feeding, in the desired direction, of the front edge of the sheet to be folded.
- the sheet to be accordion-like folded is indicated in Figures 1-3 by the reference numeral 1 while wound on itself like a roll.
- a first section of said sheet is passed within a slide housing consisting of an upper plate 2 and a lower plate 3.
- Said sheet, passing between the upper cylinder 4 and the lower cylinder 5, one of which is the driving cylinder, proceeds until it exits through the output end 2' of the sheet-guiding means consisting of said elements 2 and 3.
- the laminae means 6 is caused to be retracted, provisionally straightening, into the straight slide housing consisting of plates 3 and 16 due to the de-energization of the electromagnet 21, whereby spring 22, acting on the other end of arm 19 of the rocker lever 17, causes the latter's rod 18 to swing towards the left side ( Figure 2), thereby causing the backward movement of laminae 6 to a retracted position inside the slide housing 3, 16, in a temporarily straightened condition.
- laminae 6 owing to their flexibility, can easily revert to a straight shape when they are retracted into their housing and, owing to their shape memory, they shall be ready to take again their shape, curved at their free operating end, as soon as they will be pushed again out of their housing as a consequence of electromagnet 21 being energized, at the initial phase of insertion of a new sheet to be accordion-like folded.
- tape 7 consists of a series of belts arranged side by side and, as it may be understood observing Figure 4, the various blades 6 pass through a series of small rollers 23, that in their whole constitute the roller 5, said rollers 23 being spaced apart from one another and mounted on a common shaft 24, that can be for instance a driving shaft.
- rocker arm 17 The structure of the forward and backward movement element of the blade means, herein exemplified as rocker arm 17, may be replaced by any device that is suitable for this purpose, and the same applies to the rocker lever control system, here consisting of an electromagnet and a spring, that may be replaced by any other known control system suitable for the purpose.
Abstract
Description
- The present invention relates to a device suitable for guiding in sure way in a desired direction, in a paper sheet folding machine, the front edge of a sheet to be multi-folded accordion-like on itself, during the initial sheet folding phase, and to a folding machine provided with such a device.
- Folding sheet machines for sheets, having a considerable length and width, suitable to fold said sheets more times on themselves in one or both directions so as to obtain an accordion-like, or zigzag, folded sheet, such as for instance the folding machine described and illustrated in Italian Patent N.2.083.484 and in the corresponding European Patent N.0.171.486 of the same applicant, are already known.
- The main problem in folding machines is to provide a means which may assure that the front edge of the sheet to be multi-folded on itself be surely directed towards an element of the folding unit during the initial phase of forming the first fold and that said fold, as well as the subsequent folds, be perfect, namely that it does not show dog eared corners, wrinkles or other defects due to the front edge of the sheet to be folded which, in the initial phase, could possibly hit against an element of the folding unit or other unwanted obstacle, be it fixed or movable, in that said front edge is not guided in a sure and reliable manner in the desired direction and along the pre-established path.
- Such problem was solved, both in the above-mentioned patents and in other folding machines, in a more or less satisfactory manner.
- In the case of the aforecited patents, though said problem has been brilliantly solved, the folding machine structure is become somewhat complex and consequently more expensive.
- The purpose of this invention is therefore to solve such problem in a simpler, less expensive, and most of all more reliable manner. This is achieved by providing a shaped guiding assembly which directs in a sure way the front edge of the sheet to be folded in the desired direction and in the required position during the initial phase of forming the first fold, without any possibility of unwanted deviations and without encountering hindrances that might result in the formation of the so-called dog eared corners in the sheet front edge, whereupon said guiding assembly is retracted to a non-operative position, outside the sheet stacking area for the formation of folds, and the folding operation goes on in the usual way, imparting to the sheet, in succession, different folds as required.
- According to the present invention an assembly of guiding laminae is provided for the sheet to be folded, said laminae being made of a suitably shaped elastically flexible material which is endowed with shape memory, and being moved forward parallel to the sheet to be folded in a continuous advancing phase, from a retracted position in a suitable stationary slide housing, which slide is suitably provided parallel to the sheet advancing path, until the laminae reach an area between the folding means where the sheet is to be accumulated in order to form in it bends that are preliminary to forming folds, said elastically flexible laminae having their ends protruding from the slide in a curved or bent shape, said ends having moreover been imparted a shape memory in respect of said bending, said bent shape of the laminae allowing a reliable guide action for the front edge of the sheet to be folded which is directed towards one of the two folding stations so that, after the sheet front edge has reached the first folding station, the assembly of laminae is moved backwards and returned into its slide housing, while the remaining part of the sheet is subsequently folded repeatedly on itself according to the need in an already known manner (for instance, as explained in the aforecited patents), alternately entering into the two folding stations.
- The forward and backward movements of the elastically flexible laminae assembly may be carried out by means of various drives of a known type and an embodiment of this invention may consist of a T-shaped, fixed geometry rocker lever, the control rod of which, corresponding to the T stem, is articulated on a slider bar to which is connected the end of each one of the flexible laminae which is opposite in respect of the elastically bent operative end of the laminae which end acts as a guide element for the front edge of the sheet to be folded, the opposite end of said control rod being pivoted, similarly to a first class lever fulcrum, on the central part of a cross-arm of the rocker lever, one end of said cross-arm of the rocker lever being actuated by a drive system for the advancement of the flexible laminae assembly, and the other one being biosed upon by an antagonistic means moving the laminae assembly to the retracted position into the slide housing for the laminae.
- To better understand the invention, the same will be described and illustrated hereinbelow, illustratively referring to a schematic, non limiting, embodiment as shown in the attached drawings, where:
Figures 1, 2 and 3 are schematic vertical elevation views, respectively showing three different operational phases of a folding machine, namely an initial phase of an of across-arm 14. The opposite end of saidlaminae 6, indicated by 15, is bent upward in a permanent way, which is to say with a memory of such bent shape, in the direction towards theupper folding roller 10, passing through a suitable slide housing consisting of saidlower plate 3 and by afurther plate 16 belowplate 3. Thecross arm 14 is articulated on arocker lever member 17 consisting of arod 18 and across-arm 19 which is pivoted in 20. One end of thecross-arm 19 of therocker lever 17 is connected to a traction-type drive means, such as for instance anelectromagnet 21, while the other end ofarm 19 of therocker lever 17 is joined to a return member, such as for instance aspring 22. - The operation of the device according to the invention is described hereinbelow.
- At the start-up phase as shown in Figure 1, the
electromagnet 21 is energized, so that therod 18 of the rocker lever 17 swings in clockwise direction, reaching the position indicated in this Figure. By such movement thelaminae 6 are caused to move forward to the slide housing consisting ofplates end 15, which is elastically bent, is situated in the space between thefolding rollers tape 7, namely in the position in which the sheet front edge exits from its slide housing consisting ofplates tape 7. At this stage, since the sheet front edge system, the sheet, continuing its advancing movement, would proceed until it hits against the left section 7' of acontinuous tape 7 rotating around two drums, a lower one 8 and an upper one 9, of a folding unit also comprisingupper roll 10 andlower roll 11. Saiddrums - In Figure 1, representing the initial folding phase, said left tape section 7' has an upward movement, and therefore the tape front edge, as a consequence of the upward movement of
continuous tape 7 left section 7', tends to be directed upwards as shown in Figure 1, subsequently being compressed and then held between the firstupper folding roller 10 and the left section 7' of thecontinuous tape 7 offolding system - Under continuation of the sheet advancing and reversal of the rotation of
drums bend 12 being thereby formed in thesheet 1.Such bight 12 proceeds downwards as the sheet moves forward until it passes between the tape left section 7' and thelower folding roller 11, until forming afirst fold 13 in the sheet (Figure 3). The cycle is then repeated with a further reversal of the movement oftape 7, so to form various folds in the sheet. This all is already known from the aforecited patents. - However, unless a device is provided to initially drive in a sure way the front edge of the sheet upwards, in the direction toward the
first folding roller 10, when such sheet front edge, in the starting phase shown in Figure 1, engages the left section 7' ofcontinuous tape 7, such edge might bend downwards instead of upwards and would be dragged upwards with said sheet edge bent downwards, in the direction towards theupper folding roller 10, so that, when thecontinuous tape 7 comes to pass and to be pressed between saidroller 10 and section 7' of theendless tape 7, an unwanted, downward oriented fold or dog eared corner would form. In order to avoid this drawback, a somewhat complex and costly mechanism was provided in the aforecited patents. - On the contrary, according to the present invention, a set of laminae 6 (Figure 4), made from an elastically flexible material susceptible to be shaped in a permanent way, namely with shape memory, such as for instance armonic steel or suitable synthetic resins, are mutually connected by means operative cycle, after a first reversal condition of the folding unit, and after a second reversal condition of the folding unit, to obtain an accordion-like or zizag- folded sheet, respectively; and
Figure 4 is a schematic top plan view of the plurality of laminae made of an elastically flexible material, as seen from above, in combination with a sheet feeding or advancing roller means consisting of a plurality of separate small rollers. - A folding machine of the known type (as known from the aforecited patents) will first be described in a schematic form, to which the elastically flexible laminae means according to the present invention is provided for surely guiding the feeding, in the desired direction, of the front edge of the sheet to be folded.
- The sheet to be accordion-like folded is indicated in Figures 1-3 by the
reference numeral 1 while wound on itself like a roll. A first section of said sheet is passed within a slide housing consisting of anupper plate 2 and alower plate 3. Said sheet, passing between theupper cylinder 4 and thelower cylinder 5, one of which is the driving cylinder, proceeds until it exits through the output end 2' of the sheet-guiding means consisting of saidelements plates electromagnet 21, wherebyspring 22, acting on the other end ofarm 19 of therocker lever 17, causes the latter'srod 18 to swing towards the left side (Figure 2), thereby causing the backward movement oflaminae 6 to a retracted position inside theslide housing - With
laminae 6 retracted inside their housing, the folding cycle goes on as previously explained referring to folding machines as known from the aforecited patents. - It is evident that
laminae 6, owing to their flexibility, can easily revert to a straight shape when they are retracted into their housing and, owing to their shape memory, they shall be ready to take again their shape, curved at their free operating end, as soon as they will be pushed again out of their housing as a consequence ofelectromagnet 21 being energized, at the initial phase of insertion of a new sheet to be accordion-like folded. - So far the various rotating elements that cause the paper advancing, its folding and its pressing in a folded condition were considered as integral elements for convenience; as a matter of fact such elements are constituted by several contiguous elements. For instance,
tape 7 consists of a series of belts arranged side by side and, as it may be understood observing Figure 4, thevarious blades 6 pass through a series ofsmall rollers 23, that in their whole constitute theroller 5, saidrollers 23 being spaced apart from one another and mounted on acommon shaft 24, that can be for instance a driving shaft. - The structure of the forward and backward movement element of the blade means, herein exemplified as
rocker arm 17, may be replaced by any device that is suitable for this purpose, and the same applies to the rocker lever control system, here consisting of an electromagnet and a spring, that may be replaced by any other known control system suitable for the purpose.
Claims (7)
- A device for reliably guiding in the desired direction, in a sheet folding machine, the front edge of a sheet to be multi-folded on itself accordion-like in the initial folding phase, the folding machine including a feeding unit for the sheet to be folded and a folding unit to fold the sheet many times on itself, characterized in that in parallel relationship with the rectilinear advancing path of the sheet to be folded, at the sheet advancing group there is provided an elastically flexible laminae means at a position adjacent to the sheet to be folded, said laminae means sliding in an own slide housing parallel to said sheet advancing path, said laminae means having two positions, an operative one in which the laminae means is caused to move forwards to the sheet outlet or exit point from the advancing path, the laminae means end at said outlet point of the sheet being bent, with shape memory of such bent, in the same direction to which the sheet front edge is to be deviated to guide the latter towards a folding element, and a second non-operative or rest position in which the blade means is taken back to its initial retracted position in such a manner that the bent-portion of the laminae means, retracted to its slide housing, does not hinder the movements of the sheet in the folding phase of the same.
- A device according to claim 1, characterized in that the laminae means consists of one lamina or more laminae.
- A device according to claim 2, characterized in that the lamina or laminae are made of a material suitable of being shaped with shape memory, to which, at one end thereof, a bent shape was given which is permanently kept.
- A device according to claim 3, characterized in that each one of said laminae, at the end opposite to the bent end, is connected with a bar-like joint element on which a control system acts to move the laminae means to the retracted position and to the projecting position towards the sheet folding unit.
- A device according to claim 4, characterized in that the said control system for the forward and backward movement of the laminae means consists of a rocker lever which comprises a T-shaped rigid piece, the vertical rod of which corresponds to the stem, is articulated onto the union bar of the laminae means, the arm center being pivoted on the relevant fixed structure of the folding machine in a first class lever fulcrum-like manner, the first end of the arm of the rocker lever, closer to the folding unit, being connected to a control element exerting a traction force on said end of the rocker lever, while the after end of said arm is connected to an antagonist traction element.
- A device according to claim 5, characterized in that the control element connected with said first end of the rocker lever is an electromagnet and said antagonist traction element, connected with said second end of the rocker lever, is a traction spring.
- A folding machine including a feeding unit for the sheet to be folded and a folding unit for repeatedly folding the sheet on itself, characterized in that, at a position adjacent to or underlying the feeding unit for the sheet to be folded on itself, there is provided a device according to one or more of claims 1-3, which device is apt to guide in a positive way the front edge of said sheet in the desired direction, said device being operated by a control system according to one or more of claims 4-6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI932050 | 1993-09-24 | ||
ITMI932050A IT1272680B (en) | 1993-09-24 | 1993-09-24 | DEVICE SUITABLE FOR DRIVING SAFELY IN THE DESIRED DIRECTION, IN A SHEET FOLDING MACHINE, THE FRONT SIDE OF A SHEET TO BE FOLDED SEVERAL TIMES ON ITSELF IN ACCORDION, IN THE INITIAL PHASE OF FOLDING MACHINE, FISHING MACHINE, DRAWING MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0645335A1 true EP0645335A1 (en) | 1995-03-29 |
EP0645335B1 EP0645335B1 (en) | 1997-09-17 |
Family
ID=11366944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94110513A Expired - Lifetime EP0645335B1 (en) | 1993-09-24 | 1994-07-06 | A device for guiding the leading edge of a sheet to be folded in a folding machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0645335B1 (en) |
DE (1) | DE69405669T2 (en) |
IT (1) | IT1272680B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2003078A1 (en) * | 2007-06-15 | 2008-12-17 | Océ-Technologies B.V. | Buckle folding apparatus |
US8506465B2 (en) | 2006-04-07 | 2013-08-13 | Oce-Technologies B.V. | Method and an apparatus for folding a medium |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR842423A (en) * | 1938-02-16 | 1939-06-12 | Device for guiding sheets of paper in pocket folders | |
DE2110964A1 (en) * | 1970-05-29 | 1971-12-09 | Polygraph Leipzig | Folding unit for buckle folding machines |
EP0037650A1 (en) * | 1980-03-31 | 1981-10-14 | HARPER & TUNSTALL LIMITED | Zig-zag folding machines |
EP0171486A1 (en) * | 1984-05-08 | 1986-02-19 | RIGOLI F.I.M.E. S.p.A. | Folding machine for folding sheet material in a concertina fashion |
DE3738496A1 (en) * | 1987-03-31 | 1988-10-13 | Fuji Xerox Co Ltd | METHOD AND DEVICE FOR FOLDING PAPER |
-
1993
- 1993-09-24 IT ITMI932050A patent/IT1272680B/en active IP Right Grant
-
1994
- 1994-07-06 DE DE69405669T patent/DE69405669T2/en not_active Expired - Fee Related
- 1994-07-06 EP EP94110513A patent/EP0645335B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR842423A (en) * | 1938-02-16 | 1939-06-12 | Device for guiding sheets of paper in pocket folders | |
DE2110964A1 (en) * | 1970-05-29 | 1971-12-09 | Polygraph Leipzig | Folding unit for buckle folding machines |
EP0037650A1 (en) * | 1980-03-31 | 1981-10-14 | HARPER & TUNSTALL LIMITED | Zig-zag folding machines |
EP0171486A1 (en) * | 1984-05-08 | 1986-02-19 | RIGOLI F.I.M.E. S.p.A. | Folding machine for folding sheet material in a concertina fashion |
DE3738496A1 (en) * | 1987-03-31 | 1988-10-13 | Fuji Xerox Co Ltd | METHOD AND DEVICE FOR FOLDING PAPER |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8506465B2 (en) | 2006-04-07 | 2013-08-13 | Oce-Technologies B.V. | Method and an apparatus for folding a medium |
EP2003078A1 (en) * | 2007-06-15 | 2008-12-17 | Océ-Technologies B.V. | Buckle folding apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE69405669T2 (en) | 1998-01-22 |
DE69405669D1 (en) | 1997-10-23 |
EP0645335B1 (en) | 1997-09-17 |
ITMI932050A0 (en) | 1993-09-24 |
IT1272680B (en) | 1997-06-26 |
ITMI932050A1 (en) | 1995-03-24 |
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