EP0368392B1 - High speed folding machine for elastic material bands - Google Patents
High speed folding machine for elastic material bands Download PDFInfo
- Publication number
- EP0368392B1 EP0368392B1 EP89202744A EP89202744A EP0368392B1 EP 0368392 B1 EP0368392 B1 EP 0368392B1 EP 89202744 A EP89202744 A EP 89202744A EP 89202744 A EP89202744 A EP 89202744A EP 0368392 B1 EP0368392 B1 EP 0368392B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band
- roller
- folding machine
- rollers
- sheet
- 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.)
- Expired - Lifetime
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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
Abstract
Description
- The present invention relates to a machine for accordion-like folding bands of not very rigid elastic materials such as paper, paperboard, plastic laminates, metal sheets etc., in layers having all essentially equal length at a very high rate without using particular means by which the spacing between the folds is measured and controlled.
- This machine is particularly useful in the preparation of paper for high speed printers as an accordion-like folded band to form packages containing a predetermined number of loops , starting from a virgin band rolled up as a coil, as it normally comes from the manufacturing shop.
- A number of methods and mechanisms is known to accordion like fold a paper band for high speed printers to form packages having desired size containing a paper band having side advancing holes and weakened areas for the tearing at regular intervals. (DE-A-2 704 502).
- Among them the mostly known comprise the laying down of band loops folded by periodically acting mechanisms such, as helicoidal spirals rotating along their axis, onto a conveying band onto which the package is formed in inclined manner, with the loops flake-wise superimposed, the package being subsequently redressed either manually or by means of any simple mechanism and lastly separated and prepared for the carrying out.
- According to another method there are provided cylinders having sucking zones to drag the band paper and funnel shaped guiding means which, by alternatively moving rightwise and leftwise perpendicularly to the advancement direction of the paper, cause the the latter two laid down in a zig-zag manner, thus forming the beginning of an accordion like folding (GB-A-2 177 686, DE-A-3708016).
- Other methods exists by which the folding is carried out after predetermined band lenght are passed and sofisticated devices are involved containing synchronous or stepped motors to deliver the predetermined lenght and cause the folding to take place at the desired point.
- The methods of the prior art as above described are all either subjected to complications for intermediates or additional steps in the package forming or to limitation of production rate depending on the tech nological level of the mechanism which render very complicated the package forming process and cause it to be easily liable to registration losses which involve time consuming adjustment or substitutions when the size of the band lenght forming the packages must be changed.
- A first purpose of the present invention is that of providing a high speed polding machine for thin bands of elastic materials, such as paper, permitting said bands to be folded in accordion-like manner at very high rate forming packages which are in the already redressed situation and require a minimum of subsequent processing for their final packaging.
- Another purpose of the present invention is that of preparing packages of paper band accordion-like folded in which the size, both as lenght and as height , may be changed through simple adjustment of components of the folding machine whithout need of substitution of parts.
- A further purpose of the present invention is that of preparing packages of paper band the size of which may be predetermined in a precise manner, for example, imposing weaking areas at modular spacings in the band, and which remain precise notwithstanding minor size changes of components of the folding machine.
- The method of the present invention is essentially based on the fact that a paper sheet or a sheet of whatever laminate of similar consistency if advanced up to an obstacle is contacted, begins to take an arc shape , forming a loop increasingly narroever as the sheet is pushed against a first fixed obstacle , whereby , if the said loop near the apex thereof is carried by a first roller, the peripheral speed of which is higher than the advancing speed of the sheet, and is made to impinge against a second fixed obstacle, being engaged with the first roller surface so that it cannot be overcome by the sheet, said loop is definitely pinched whereby the sheet takes a straight fold line and subsequently this sharp folding line, by remaining abutted against said second obstacle into engagement with the first roller acts as a stop whereby the sheet continuously advancing is formed as an arc in the opposite direction with respect to the preceeding one, the loop of which is more and more narrowed, as the sheet advances, being removed from the obstacle until the loop near its apex is carried by a second roller, the peripheral speed of which is higher than the advancing speed of the sheet and is compelled to impinge against the first fixed obstacle, into engagement with the surface of said second roller, whereby it cannot be overcome by the sheet, said loop being sharply pinched, thus giving to the sheet a straight folding line which , by remaining into abuttment against said first obstacle engaged with the second roller, acts as a stop inverting the arc formed by the sheet which at the very end takes a zig-zag configuration forming the desired accordion like folding.
- A device by which the method of the present invention is embodied consists of a supporting plane, above which guiding means are provided for the sheet or band and alternatively guiding said band when it is introduced in order to have it inpinging against a first or a second said obstacle each of one limitates one of the two opposite sides of said supporting plane, above said first and second obstacle there being provided roller means rotating at a speed such that their peripheral speed is higher than the advancing rate of the band whereby a loop generated in said band owing to the abutting thereof against that of the two obstacle towards which it is initially guided by said guiding means is dragged by that of the roller means opposite with respect to said obstacle against the opposide obstacle which is engaged with said roller means to prevent the band from passing under the same, forming in the band itself a straight and sharp fold which causes the direction of loop formation of the sheet to be inverted, whereby it is brought towards the opposite of said roller means and the forming of said sharp and streight folds is continuously alternated between the two opposite roller means forming an accordion like folded band.
- Particularly, the two said obstacle opposed to the two side of the said supporting plane consists of two substantially U-shaped frames, pivotally connected to the rotation shafts of said roller means and depending therefrom, by which the lower halves of said roller means are encompassed and interposed between said roller means and said supporting plane.
- The said two frame shaped side obstacles are provided with means preventing the band from entering between themselves and the plane or the roller means consisting of releaved parts engaging corresponding grooves in the same supporting plane and in the roller means.
- The said releaved parts on said frames consists of parallelepipedal blocks entering the corresponding grooves of the supporting plane and of the roller means.
- Said parellelipipedal blocks are provided with cross cuts giving them a comb appearence.
- Said roller means are supported by first lever arms having on second arms means adapted to counterweight the weight of said rollers.
- Preferably said means adapted to oppose the weight of said rollers means consists of counterweight giving to said levers counterbalance moments slightly lower than those resulting from the weight of said roller means.
- Alternatively, said means, adapted to counterbalance the weight of said roller means consist of springs adjusted so that counterbalance moments applied therefrom to said levers are slightly lower than those resulting from the weight of said roller means.
- Preferably said frame shaped obstacle depending from the shafts of said roller means are provided with compression springs keeping said obstacles against a package of accordion like folded band already accumulated therebetween.
- More preferably said frame shape obstacles are furthermore provided with stops preventing them from being removed bejond a certain distance from each other in order to keep constant the longitudinal size of the band lenghts forming the package.
- According to a first embodiment of the invention the roller which are lifted by the band package being formed thereunder, when attain a certain height actuate controll means which cause the supporting plane on which said accordion like folded band package is formed to be gradually lowered.
- Preferably, said controll means consists of at least a microswitch, actuated by the position taken by at least one of said rollers, controlling a gradual lowering of said supporting plane.
- More preferably said at least one microswitch is actuated by the position taken by one of the arms of one of said levers supporting said rollers.
- Still more preferably, one of the arms of said levers supports a member of adjustable lenght such as a bolt screwed onto a releaved part, which is brought from the position of the levers into engagement with the actuating element of a microswitch.
- Alternatively, said microswitch can be secured to one arm of said lever and the member of adjustable lenght can be fastened to a releaved part connected to supporting structures of the machine.
- Said guiding means positioned above said supporting plane consists of an assembly comprising at least a pair of moving rollers, tending to be abutted against each other, followed by two planar plates , parallel and spaced by an interval sufficient for the passing of a band to be guided , which can be oriented as desired towards one of the two side obstacle to have the band loop starting at the desired part.
- Preferably said assembly of rollers and parallel plates is housed within a frame supported by a rotation shaft, actuated by motor means, in order to be orientable towards the selected one of the said obstacles.
- More preferably said motor means for the orientation of said frame consists of an electromagnetic actuator.
- Alternatively said motor means consist of a pneumatic actuator .
- In a preferred embodiment of the present invention said motor means cause said guiding means to be oriented for the time necessary to bring the leading end of the band to be folded against the selected said obstacles and then are switched off to permit said guiding means to remain in a central position permitting alternated foldings of said band.
- In order to complete the action of guiding and of bringing the band towards the supporting plane and said rollers, there is provided above the frame supporting the guiding means assembly at least a pair of rollers mutually abutting against each other and driven by a motor at the same peripheral speed as at least two rollers present in the assembly of guiding means.
- In a particularly preferred embodiment of the present invention, relating to the particular accordion-like folding of bands in fixed lenghts, said bands are provided with weakening lines at regular interval or length permitting the folding of said bands in lenghts in all equal to each other with a good tolerance with respect to the position of said obstacles and of the above positioned rollers with respect to the supporting planes.
- Lastly said roller means consists of two cylindrical rollers driven in mutually opposed directions, to bring the band against said obstacles, at essentially equal speeds, provided with groups having shapes mating the shape of the combs provided on the obstacles positioned sidewise with respect to the supporting plane, and with areas coated with material promoting the adhesion of said band to said rollers.
- More particularly, said material promoting the adhesion of the band to the rollers is an elastomeric material such as natural or synthetic rubber or flexible plastic materials.
- The features and advantages of the invention, together with its further features and advantages shall be better understood from the following deatiled description of the preferred embodiment, to be not construed in limitating sense, with reference to the enclosed drawings in which:
- fig. 1 is a front elevation view of a device embodiying the folding method of said band according to the present invention wherein the band begins to arrive in order to undergo the first folding in said device;
- fig. 2 is an elevation view from the identical view point as figure 1 of the same folding device according to the present invention when part of a band package has been already formed onto the supporting plane;
- fig. 3 is a side view along the line III-III of fig. 1 with part in cross section or removed to show several details of the invention.
- Referring to the figures, it can be seen that a folding machine according to the invention consists of a supporting
frame 10 composed byposts cross bar 16 with can be seen in the figures 1 and 2, within which a supportingplane 18, two rotatingcylindrical roller axes cylindrical rollers respective cross bars plane 18 , are provided. - Particularly said U shaped
frame releaves corresponding grooves - The said supporting
plane 18 is mounted to acolumn 48 which is driven by whatever positioning means 50 to determine the position of the supportingplane 18 with respect to thecylindrical rollers frames - The
cylindrical rollers frame 10 and to the supportingplane 18 by means of twodouble levers axes cylindrical rollers axis second arms counterweights cylindrical rollers lever 52 comprises an adjustment screw orbolt 72 into engagement with a screw threaded hole of a releavedpart 74 rigidly connected to said second arm in order to engage amicroswitch 76 secured to thepost 12 of theframe 10 for the hereinafter described function. - It is to be noted that the U shaped
frames axes cylindrical rollers first arms levers springs first arms frames pins frame 10 of the folding machine. - The two
cylindrical rollers gears gears axis cylindrical rollers - Considering now the initial guiding means of the
band 102 , which preferably is a paper band, said means consists of acase 104 containing at least twoflanges upper pins arms cylindrical rollers spring 120, twoplanar guide plate shaft 126 for the orientation of thewhole case 104, which can be driven into movement by external motor means 128. - The paper band itself 102 coming from an outer supply, such as a coil (not shown) comes , after possible preliminary operations, such as the provision of holes along the edges and the provision of possible weakening lines at regular periodic lenghts to promote the folding of the band at the desired points, to a pair of actuated
cylinders case 104 of the guiding means to bring it to distribution and folding which takes place in said folding machine of the present invention. - The two
cylindrical rollers grooves cylindrical roller 22 in figure 3, are provided with areas ofgreater adherence cylindrical rollers - The operation of the invention is as follows:
when a package of accordion like folded band is to be started, one end of thepaper band 102 is directed from thecase 104 towards the side of the supportingplane 18 at which the package must be started, for instance the side defined by the Ushaped frame 26, by inclining thecase 104 with theplanar guide plates frame 26. - The end of the
paper band 102 is downwardly advanced until it impinges against the supportingplane 18 and, owing to the pushing action of the pairs of thecylindrical rollers cross bar 27 of theframe 26, which cannot be overcome by insertion under, owing to the releaves 38 (a-e), which are particularly shown in figure 3, preventingsaid band 102 from passing between thecrossbar 27 and theplane 18. - Under the pushing action of the two aforesaid rollers pairs 116, 118 and 130 , 132 the band starts taking an arc shape according to an
arc 150 which subsequently, owing to the fact that thecase 104 leaves the position of figure 1 to take that of figure 2 with theplanar guide plate loop 150a which, owing to the next advancing of the band, becomes theloop 150b which comes more and more close to thecylindrical roller 20 rotating in the direction indicated by theharrow 21 at a speed such that the peripheral speed of the roller is definitely higher than the advancing rate of theband 102. - When the
loop 150b by expansion comes into contact with saidroller 20, the latter has onto the band an effect similar to that of a hand flattening a folded sheet to originate a sharp fold in a desired point . - The
loop 150b as a matter of fact is drawn by theroller 20 until it inpinges against therelieves 32 of thecross bar 25 of the U-shapedframe 24 providing in the band a sharp well flattened fold which , by the way, causes the curvature of theloop 150b to be inverted , being transformed into thearc 160 shown in figure 2. - Said arc owing to advancing of the band will be transformed then in a loop more and more curved becoming closed to the
roller 22, rotating in the direction indicated by thearrow 23, until the latter takes it impinge against the relieves 36 (a-e) particularly shown in figure 3, undergoing again a sharp folding with inversion of the curvature into anarc 162 which will increase becoming a loop which that time will approach again theroller 20; said forming of arcs becoming loops and then inverting when theband 102 comes into contact against saidrollers package 166 of accordion like folded band between the two Ushaped frames plane 18. - The lenght said of the
package 166 and defined by the distance between thecross bars shaped frames level rollers shaped frames compression springs stopping pins shaped frames - The said
package 166 grows by occuping the space between therollers plane 18 and , when said space is fully occupied, owing to the fact that the band is continuously drawn under the two saidrollers 20 against thecross bars rollers counterweight levers rollers - The height of said packaged 166 increases until the
screw 72 screwed within arelief 74 rigidly connected to thearm 64 of thelever 52 actuates themicroswitch 76 thus controlling positioning means 50 by which the supportingcolumn 48 of the supportingplane 18 is gradually lowered whereby a further growth of thepackage 166 is permitted. - The growth of the
package 166 is continued until, in any manner, it is completed and consequently theband 102 is cut whereby its folding to form said packages is stopped. - The packaged 166, once completed, is removed from the supporting
plane 18 and delivered to further packaging processing, for the storage or delivery. - The above in only a preferred embodiment of the present invention and it will be obvious that all equivalent means to realize the component of the invention are to be considered as hereby covered such as, for example the use of calibrated springs instead of the
counterweight roller 20 instead of only onemicroswitch 76 to signal the raising of theroller 20 and, instead of thecolumn 48 and of the positioning means 50 to lower or raise the supporting plane 18 a threaded shaft actuated by a reducing gear motor unit and into engagement within a threaded hole passing in a suitable position through the supportingplane 18 might by used.
Claims (25)
- Method for folding at high speed a paper sheet or a sheet of whatever laminate of similar consistency, wherein said sheet (102) is advanced and contacts a first fixed obstacle (26), begins to take an arc shape (150;160), forming an increasingly narroever loop (150a, 150b) as the sheet (102) is pushed against the first obstacle (26), whereby , if said loop near the apex thereof is carried by a first roller (20), the peripheral speed of which is higher than the advancing speed of the sheet, and is made to impinge against a second fixed obstacle (24), being engaged with the first roller (20) surface so that it cannot be overcome by the sheet (102), said loop is definitely pinched whereby the sheet (102) takes a straight and sharp fold line and subsequently this sharp folding line, by remaining abutted against said second obstacle (24) into engagement with the first roller (20), acts as a stop whereby the sheet (102) continuously advancing is formed as an arc shape (160) in the opposite direction with respect to the preceeding one (150; 160), the loop of which is more and more narrowed, as the sheet advanced, being removed from the second obstacle (24) until the loop near its apex is carried by a second roller (22), the peripheral speed of which is higher than the advancing speed of the sheet (102) and is compelled to impinge against the first fixed obstacle (26), into engagement with the surface of said second roller (22), whereby it cannot be overcome by the sheet (102), said loop being sharply pinched, thus giving to the sheet (102) a straight folding line which , by remaining into abuttment against said first obstacle (26) engaged with the second roller (22), acts as a stop inverting the arc formed by the sheet which at the very end take a zig-zag configuration forming the desired accordion like folding.
- Folding machine for the carrying out of the method of claim 1, for the folding of a sheet in form of a continuous band (102), and comprising a supporting plane (18), above which guiding means (104) are provided for the sheet or band (102) and alternatively guiding said band (102) when it is introduced in order to have it inpinging against a first or a second said obstacle (24, 26) each them limitating one of the two opposite sides of said supporting plane (18), above said first and second obstacle (24, 26) there being provided roller means rotating at a speed such that their peripheral speed is higher than the advancing rate of the band (102) whereby a loop (150) generated in said band owing to the abutting thereof against that (26) of the two obstacle towards which it is initially guided by said guiding means (104) is dragged by that of the roller means (20) opposite with respect to said obstacle (26) against the opposide obstacle (24) which is engaged with said roller means (20) to prevent the band (102) from passing under the same (102), forming in the band itself a straight and sharp fold which causes the direction of loop formation of the sheet to be inverted, whereby it is brought towards the opposite of said roller means (22) and the forming of said sharp and straight folds is continuously alternated between the two opposite roller means (20, 22) forming an accordion like folded band.
- Folding machine according to claim 2, characterized in that the two said obstacle opposed to the two sides of the said supporting plane (18) consists of two substantially U-shaped frames , pivotally connected to the rotation shafts (28, 30) of said roller means (20, 22) and depending therefrom, by which the lower halves of said roller means (20, 22) are encompassed and interposed between said roller means and said supporting plane (18).
- Folding machine according to claim 3, characterized in that said two frame shaped side obstacles (24, 26) are provided with means (32, 34, 36, 38) preventing the band (102) from entering between themselves and plane (18) or the roller means (20, 22) consisting of releaved parts engaging corresponding grooves (40, 42, 44, 46) in the same supporting plane (18) and in the roller means (20, 22).
- Folding machine according to claim 4, characterized in that said releaved parts (32, 34, 36, 38) on said obstacles (24, 26) consist of parallelepipedal blocks entering the corresponding grooves (40, 42, 44, 46) of the supporting plane (18) and of the roller means (20, 22).
- Folding machine, according to claim 5, characterized in that said parellelipipedal blocks are provided with crossing cuts giving them a comb appearence.
- Folding machine, according to claim 2, characterized in that said roller means (20, 22) are supported by first arms (56, 58) of first class levers (52, 54) having on second arms (64, 66) means counterweighing the weight of said rollers (20, 22).
- Folding machine, according to claim 7, characterized in that said means opposing the weight of said rollers means (20, 22) consists of counterweights (68, 70) giving to said levers (52, 54) counterbalance moments slightly lower than those resulting from the weight of said roller means (20, 22).
- Folding machine according to claim 7, characterized in that said means, counterbalancing the weight of said roller means (20, 22), consist of springs adjusted so that counterbalancing moments applied therefrom to the said levers (52, 54) are slightly lower than those resulting from the weight of said roller means (20, 22).
- Folding machine, according to claims 3 and 7, characterized in that said frame shaped obstacles (24, 26) depending from the shafts (28, 30) of said roller means (20, 22) are provided with compression springs (78, 80) keeping said obstacles (24, 26) against a package (166) of an accordion-like folded band already accumulated therebetween.
- Folding machine, according to claim 10, characterized in that said frame shaped obstacles (24, 26) are furthermore provided with stops (82, 84) preventing them from being removed beyond a certain distance from each other in order to keep constant the longitudinal size of the band lenghts forming the package (166).
- Folding machine according to claim 7, characterized in that the rollers (20, 22) which are lifted by the band package (166) being formed thereunder, when attain a certain height actuate control means (76) which cause the supporting plane (18) on which said accordion-like folded band package (166) is formed to be gradually lowered.
- Folding machine according to claim 12, characterized in that said control means consists of at least a microswitch (76) actuated by the position taken by at least one of said rollers (20, 22) controlling a gradual lowering of said supporting plane (18).
- Folding machine according to claim 13, characterized in that said at least one microswitch (76) is actuated by the position taken by one of the arms (64, 66) of one of said levers (52, 54) supporting said rollers (20,22).
- Folding machine,, according to claim 14, characterized in that one of the arms (64, 66) of said levers (52, 54) supports a member of adjustable lenght (72) such as a bolt screwed onto a releaved part (74), which is brought from the position of the levers (52, 54) into engagement with the actuating element of the microswitch (76).
- Folding machine, according to claim 14, characterized in that said microswitch (76) can be secured to one arm (64, 66) of said lever (52, 54) and the member of adjustable lenght (72) can be fastened to a releaved part connected to a supporting structure of the machine.
- Folding machine, according to claim 2, characterized in that said guiding means positioned above said supporting plane (18) consists of an assembly comprising at least a pair of moving rollers (116, 118), tending to be abutted against each other, followed by two planar plates (122, 124) , parallel and spaced by an interval sufficient for the passing of the band (102) to be guided , which can be oriented as desired towards one of the two side obstacle (24, 26) to have the band loop starting at the desired side.
- Folding machine, according to claim 17, characterized in that said assembly of rollers and parallel plates is housed within a frame (104) supported by a rotation shaft (126), actuated by motor means (128), in order to be orientable towards the selected one of the said obstacles (24, 26).
- Folding machine, according to claim 18, characterized in that said motor means (128) for the orientation of said frame (104) consists of an electromagnetic actuator.
- Folding machine, according to claim 18, characterized in that said motor means (128) consist of a pneumatic actuator.
- Folding machine, according to claim 17, characterized in that said motor means (128) cause said guiding means to be oriented for the time necessary to bring the leading end of the band (102) to be folded against the selected said obstacles (24, 26) and then are switched off to permits said guiding means to remain in a central position permitting alternated foldings of said band (102).
- Folding machine, according to clail 17, characterized in that in order to complete the action of guiding and of bringing the band (102) towards the supporting plane (18) and said rollers (20, 22), there is provided above the frame (104) supporting the guiding means assembly at least a pair of rollers (130, 132) mutually abutting against each other and driven by a motor at the same peripheral speed as at least the two rollers (116, 118) present in the assembly of guiding means.
- Folding machine, according to claim 2, particularly preferred relating to the particular accordion like folding of bands (102) in fixed lenghts, characterized in that said bands (102) are provided with weakening lines at regular interval or length permitting the folding of said bands (102) in lenghts in all equal to each other with a good tolerance with respect to the position of the said obstacles (24, 26) and of the above positioned rollers (20, 22) with respect to the supporting planes (18).
- Folding machine according to claim 2, characterized in that said roller means (20, 22) consists of two cylindrical rollers driven in mutually opposed directions, to bring the band against said obstacles (24, 26), at essentially equal speeds, provided with grooves, (40, 44) having shapes mating the shape of the combs (32, 36) provided on the obstacles (24, 26) positioned sidewise with respect to the supporting plane (18), and with areas (136-140) coated with material promoting the adhesion of said band (102) to said rollers (20, 22).
- Folding machine, according to claim 24, characterized in that said material promoting the adhesion of the band to the rollers (20, 22) is an elastomeric material such as natural or synthetic rubber or flexible plastic materials.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89202744T ATE88163T1 (en) | 1988-11-07 | 1989-10-31 | HIGH SPEED FOLDING MACHINE FOR ELASTIC TAPE MATERIAL. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8822536A IT1227467B (en) | 1988-11-07 | 1988-11-07 | HIGH SPEED BENDING MACHINE FOR ELASTIC TAPES. |
IT2253688 | 1988-11-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0368392A2 EP0368392A2 (en) | 1990-05-16 |
EP0368392A3 EP0368392A3 (en) | 1990-06-06 |
EP0368392B1 true EP0368392B1 (en) | 1993-04-14 |
Family
ID=11197559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89202744A Expired - Lifetime EP0368392B1 (en) | 1988-11-07 | 1989-10-31 | High speed folding machine for elastic material bands |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0368392B1 (en) |
JP (1) | JP2669508B2 (en) |
AT (1) | ATE88163T1 (en) |
DE (1) | DE68905996T2 (en) |
IT (1) | IT1227467B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT220205Z2 (en) * | 1990-10-03 | 1993-07-13 | Meschi Ind Grafica | IMPROVED SHEET STOP SYSTEM AGAINST A COLLECTION PLATE OF A HIGH SPEED CONTINUOUS PAPER STRIP BENDING MACHINE |
DE102012015466B4 (en) * | 2012-08-03 | 2015-01-22 | Roth + Weber Gmbh | Method for folding paper |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2704502A1 (en) * | 1977-02-03 | 1978-08-10 | Walter Wuersch | Paper strip folding mechanism - has uncut paper transport mechanism engaging positively with strip and securing in position |
DE3610640A1 (en) * | 1985-07-18 | 1987-01-22 | Womako Masch Konstr | DEVICE FOR ZIGZAG FOLDING AND CUTTING A THIN MATERIAL SHEET |
DE3708016A1 (en) * | 1987-03-12 | 1988-09-22 | Womako Masch Konstr | Device for the zig-zag folding of a material web |
-
1988
- 1988-11-07 IT IT8822536A patent/IT1227467B/en active
-
1989
- 1989-10-31 DE DE89202744T patent/DE68905996T2/en not_active Expired - Fee Related
- 1989-10-31 EP EP89202744A patent/EP0368392B1/en not_active Expired - Lifetime
- 1989-10-31 AT AT89202744T patent/ATE88163T1/en not_active IP Right Cessation
- 1989-11-07 JP JP1288069A patent/JP2669508B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE68905996T2 (en) | 1993-11-04 |
EP0368392A3 (en) | 1990-06-06 |
DE68905996D1 (en) | 1993-05-19 |
JP2669508B2 (en) | 1997-10-29 |
JPH02182667A (en) | 1990-07-17 |
IT1227467B (en) | 1991-04-11 |
ATE88163T1 (en) | 1993-04-15 |
IT8822536A0 (en) | 1988-11-07 |
EP0368392A2 (en) | 1990-05-16 |
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