• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    METHOD AND DEVICE FOR FOLDING PANELS. Method for folding a panel, in which: a. at least one panel (1, 2) on a pre-folding ring (7a) with a movable folding ring holder (3), the movable folding ring holder (3) being moved into an oven ( 4) and the panel (1, 2) is heated to the softening temperature and pre-folded to 5% to 50% of the final edge fold; B. the panel (1, 2) is lifted by means of a suction device (5) and can also be folded in addition to the folding obtained in the pre-folding ring (7a), in which during folding on a folded contact surface (12 ) of a counterframe (8) of the suction device (5) there is a minimum distance (18) of 3mm to 50mm between the panel (1, 2) and an air baffle (11) of a cover (9) of the device suction (5) surrounding the counter structure (8); ç. the panel (1, 2) is placed by means of the suction arrangement (5) in a final folding ring (7b) on the movable folding ring support (3) and be folded until the final edge fold and pre- folding of the panel surface (1, 2) takes place by means of thermal radiation; d. the panel (1, 2) is raised by means of a second (...).
    公开号:BR112013013249B1
    申请号:R112013013249-3
    申请日:2011-12-08
    公开日:2020-11-03
    发明作者:Benno Dunkmann；Jean-Marie Le Ny；Lothar Schmidt；Herbert Rademacher；Michael Balduin
    申请人:Saint-Gobain Glass France；
    IPC主号:
    专利说明:

    [0001] The invention relates to a method and device for folding panels, an oven for folding panels and the use of the oven.
    [0002] In addition to equipment aspects, the development of new motor vehicles is also determined, to a large extent, by design elements ("design"). In this the significance of the windshield design is increasing, due to the large, highly visible area. In this regard, not only the appearance of the windshield, but also aspects for energy conservation and environmental impact play a role. Powerful microprocessors, as well as software packages supported by CAD (Computer-Aded Design) also enable greater adaptation and optimization of the aerodynamic resistance of the windshield. For this reason, modern windshields in motor vehicles have increasingly complex shapes. In particular, motor vehicles with very low fuel consumption, but also sports cars make high demands on panel geometry and thus also on glass panel folding methods necessary for their implementation. The folding of a glass panel can be carried out, for example, by means of a combination of gravity folding and pressure folding. One or a plurality of glass panels are placed in a folding ring and heated. In this process, the glass panel is folded along the geometry predefined by the folding ring with the help of gravity acting on the heated glass panel. Then, the heated glass is folded into the corresponding shape with the help of negative pressure and a suitable structure.
    [0003] More complex geometries cannot usually be performed with a single folding process. This is made more difficult by the fact that separate or subsequent folding processes cannot be combined arbitrarily. These factors clearly limit the possibilities of obtaining the imagined panel geometry. In particular, the combination of edge bending and surface bending to produce complex geometries can only be accomplished with difficulty.
    [0004] EP 0 677 491 A2 discloses a method for folding and tempering glass panels. The glass panels are heated to their softening temperature, compressed between two complementary forms in a device, and then transferred to a transport ring. The panels are then tempered and cooled in the transport ring.
    [0005] EP 1 371 616 B1 discloses a device for folding and tempering glass panels. The device comprises, among other things, successive mold carriers, preheating sections to heat glass panels to bending temperature, a gravity-based pre-bending section, a bending section with a press mold and a cooling section.
    [0006] EP 1 358 131 B1 discloses a method for folding glass panels in pairs. For this, the pair of glass panels is pre-folded in a horizontal position on a folding mold in the form of a structure by means of gravity folding. The pair of glass panels is then folded with an entire folding mold surface.
    [0007] US 2008/0134722 A1 discloses a method and device for folding overlapping panels. The panels are lifted by means of a suction mold and compressed by an opposite mold and folded according to the geometry.
    [0008] The purpose of the present invention is to provide a method for folding panels that allows even complex geometries to be folded quickly, in minimum possible process steps, and with minimum energy consumption.
    [0009] The purpose of the invention is achieved by means of a method and device according to claims 1 and 11. Advantageous modalities emerge from the dependent claims.
    [0010] The use of the oven according to the invention is shown in claim 15.
    [0011] The method for folding panels according to the invention makes it possible to combine edge folding as well as surface folding. The method comprises a first step in which at least one panel, preferably a first panel and a second panel are placed in a pre-folding ring on a movable folding ring holder. The method is suitable for both a panel and for folding panels in pairs. The pre-folding ring preferably has a fold with an average final edge fold of 5% to 50%. The mobile folding ring holder then moves into an oven, and the panels are heated in the pre-folding ring by means of a heating device, at least to the glass softening temperature, preferably 550 ° C to 800 ° C. The softening temperature is determined by the composition of the glass. The panels placed on the pre-fold ring are pre-folded by gravity to 5% to 50% of the final local edge fold. In the context of the invention, the term "final edge folding" is the average (final) folding in the final finished state of at least a portion of the panel edge or edge of the folding ring having a dimension or length of at least 30% of the full folding ring edge or panel edge. The panels are lifted in the next stage by a (first) suction device and folded even further than the fold obtained in the pre-folding ring. The panels are preferably folded to 102% to 130% of the final edge fold. The folding takes place on a counter structure located in the suction device. The counterframe is preferably ring-shaped with a protruding folded contact surface. The suction device includes, in addition to the counterframe, a cover with an air baffle surrounding the counterframe. The air baffle is located adjacent to the raised panel and is designed in such a way that during folding on the contact surface of the counter structure the panel is at a distance of 3 mm to 50 mm from the air baffle. This distance allows continuous aspiration of air in the intermediate space between the panel and the air baffle. The air drawn in generates a negative pressure to fix the panel on the contact surface. The suction process bends the panels corresponding to the bending (curvature) of the contact surface. The contact region of the molded part, in particular the contact surface with the panel, is preferably coated with a flexible or soft material. This material preferably includes fire-resistant glass fibers, metal or ceramic, and prevents damage such as scratches on the panels. A description of the mode of operation and structure of the suction device for lifting the panel is found in US 2008/0134722 A1, [0036] and [0038] to [0040] as well as claim 1 a. The panels are then placed via the suction device in a final folding ring on the movable folding ring holder. The final fold ring preferably has at least an average final fold 30% larger than the pre-fold ring. The placement of the panels can take place, for example, by raising the suction pressure by means of a pressure drop of the suction device. The pre-folding ring and the final folding ring are, in each case, folded according to the projected panel geometry. The circumference and opening angle of the folding ring are adapted to the geometry of the panel to be folded. The pre-folding ring and the final folding ring are preferably placed on the same movable folding ring holder and can, for example, be converted by removing a pin or a pre-folding ring holder for the final folding ring. In the context of the invention, the term "convert" means both, changing the shape (geometry) of the folding ring from the pre-folding ring to the final folding ring and a withdrawal of the pre-folding ring as well as " make accessible ”a final folding ring placed below the pre-folding ring. The panel placed on the final folding ring is pre-folded by means of thermal radiation on the surface. For this, a temperature gradient is set above the panel and different surface folding is made possible by different heating. The heating device preferably includes an arrangement of individually controllable heating tiles separately. As a result of the different thermal radiation of the tiles, different temperature regions can be carried out on the panels. The panels are then lifted by a second suction device. The second suction device preferably has the same structure as the first suction device. In the next step, the panels are pressed against a counter mold and preferably folded on the surface of the panel. The structure of this countermold is described in US 2008/0134722 A1 in [0037] and figure 2. The countermold functions as a negative of the folded surface of the panel and folds the panel to the final surface geometry. Then the panels are placed over the final folding ring and cooled.
    [0012] The panels preferably include glass, particularly preferably flat glass (float glass), quartz glass, borosilicate glass and / or soda-lime glass.
    [0013] The panels are preferably lifted by means of the suction device and folded to 100% up to 130%, preferably to 105% up to 120% of the overall final edge fold. The term “final overall edge bend” refers to a uniform bending of the entire panel expressed as a percentage. The panels are preferably formed on a folding ring (against structure) in the suction device in such a way that they have an edge fold that exceeds in shape or extension the amount of the final edge fold.
    [0014] The panel is preferably folded by means of the suction device with a final fold locally different from the edge. The term “local end edge fold” refers to a non-uniform (end) fold (of the edge) of the entire panel expressed as a percentage.
    [0015] The panel is preferably folded in a localized manner in the first and / or second suction device by means of an air flow or a lower folding ring. The term "locally" means individual regions of the panel, to which an additional fold is adjusted in a limited region by means of an air stream, preferably from a nozzle. Alternatively, the local folding described can take place by means of a folding ring applied from below.
    [0016] The panels are preferably heated by means of a temperature gradient over the glass surface with a maximum of 0.05 K / mm to 0.5 K / mm, preferably 0.1 K / mm to 0.2 K / mm. The adjustment of the temperature gradient takes place preferably by means of heating devices controlled in a different way (i.e., different amounts of radiated heat) and placed above or below the panels.
    [0017] The panels are preferably heated to a temperature of 500 ° C to 750 ° C, in particular, preferably 580 ° C to 650 ° C.
    [0018] The panels are preferably pre-folded by means of gravity in the pre-folding ring to 10% to 30% of the average final fold.
    [0019] The suction device preferably accumulates a suction pressure from 1 kg / m2 to 100 kg / m2. This suction pressure is sufficient to securely attach the panels to the suction device and fold them over the counterframe.
    [0020] The invention also includes a panel, in particular a pair of panels, folded using the method according to the invention.
    [0021] The invention further includes an oven for folding panels, preferably for folding panels in pairs. The oven comprises at least one heating device installed in the oven and a mobile folding ring holder inside and outside the oven with a folding ring such as a pre-folding ring and / or final folding ring. The folding ring is preferably adjustable or convertible like both, such as a pre-folding ring and a final folding ring. The pre-folding ring and the final folding ring can, for example, be converted by removing a pin or a support from the pre-folding ring to the final folding ring. In the context of the invention the term "convert" means both, changing the shape (geometry) of the folding ring from the pre-folding ring to the final folding ring and withdrawing the pre-folding ring as well as "making it accessible" a final folding ring placed below the pre-folding ring. Within a preheating region the panels (first panel and / or the second panel) are heated to a softening temperature. In a first folding region a first vertically displaceable suction device, preferably convexly folded, is connected to the preheating region in the pre-folding region. The suction device makes it possible to take the panels outside the pre-heating ring, fold the panel and place the pre-folded panel back on the final folding ring. The suction device comprises at least one counterframe with a folded contact surface. The fold of the contact surface is preferably greater than the fold of the pre-fold ring, preferably the fold of the contact surface is at least 30%, particularly preferably at least 90%. The counter structure is surrounded by a cover with an air baffle and there is a minimum distance of 3 mm to 50 mm between the contact surface and the air baffle. The air baffle protrudes down past the lowest point on the folded contact surface. A heating region to heat or temper the panels, located on the mobile folding ring, connects to the suction device. The panel placed on the final folding ring is pre-folded on the surface by means of thermal radiation. For this, a temperature gradient is set above the panel and different surface folding is made possible by different heating. The heating device preferably includes an arrangement of individually controllable heating tiles separately. As a result of the different thermal radiation of the tiles, different temperature regions can be carried out on the panels. A second folding region is located adjacent to the heating region in the direction of movement of the panels. The second folding region includes a second vertically displaceable suction device as well as a concave folded counter-mold, preferably horizontally and vertically displaceable. In conjunction with the second suction device, the counter mold allows folding of the panel surface. The structure of this countermold is described in US 2008/0134722 A1 in [0037] and figure 2. In the direction of the process, a cooling region connects to the second folding region. The cooling region constitutes the final portion of the oven according to the invention. The preheating region, the first folding region, the heating region, the second folding region and the cooling region are placed connected in succession in the direction of the process. The oven according to the invention has heating devices for heating and in the preheating region, first folding region, heating region, second folding region, cooling region. The heating devices are placed on, beside, or even above the movable folding ring holder.
    [0022] The movable folding ring holder is preferably moved by means of a transport device located inside and outside the oven.
    [0023] A third suction device is preferably placed in the second folding region. This increases the cycle time of the oven according to the invention.
    [0024] The heating device preferably includes radiant heaters, in particular preferably infrared radiators.
    [0025] The heating device preferably includes an arrangement of individually controllable heating tiles separately. As a result of the different thermal radiation of the tiles, regions of different temperatures can be carried out on the panels. The different temperature regions make it possible to gradually heat the surface of the panels.
    [0026] The invention also includes the use of the oven according to the invention to fold panels to be laminated, preferably windshields for motor vehicles.
    [0027] The invention further includes the use of a panel according to the invention as a windshield, preferably as a windshield of a motor vehicle.
    [0028] In what follows the invention is explained in detail with reference to drawings and a modality taken as an example, as well as a comparative example. The drawings are purely schematic and are not to scale. In no way do they limit the invention.
    [0029] They outline: figure 1 a cross section of the oven according to the invention, figure 2 a cross section of the suction device and figure 3 a flow chart of the method according to the invention.
    [0030] Figure 1 outlines a cross section of the oven according to the invention to produce the panel according to the invention. The oven comprises heating devices 6 and folding ring supports 3 movable inside and outside the oven by means of a transport device 10 which in each case has a pre-folding ring 7a, Within a preheating region A , the panels 1, 2 are heated to the softening temperature of the respective glass In the pre-folding region B, a first vertically displaceable suction device, preferably convexly folded 5 connects to the preheating region A. suction 5 makes it possible to take the panels 1,2 out of the folding ring support 3, pre-folding the panels 1, 2 and placing the pre-folded panels 1, 2 on a final folding ring 7b. The pre-fold ring 7a and the final fold ring 7b can be obtained, for example, by removing a pin or a support from the pre-fold ring 7a for the final fold ring 7b. An intermediate region C for heating the panels 1, 2 placed on the final folding ring 7b connects to the suction device 5 in the pre-folding region B. The final folding region D with a second vertically displaceable suction device, folded convex 15 is located adjacent to the intermediate region C. The second vertically displaceable suction device, folded in a convex manner 15 is horizontally movable and allows lifting and folding of the panels 1, 2. The second vertically displaceable suction device, folded in a convex manner 15 corresponds in its basic structure to the suction device 5. The basic structure of the suction device 5, 15 is also described in US 2008/0134722 A1. The corresponding final fold can be produced in the panels 1, 2 caught by means of the suction device folded in a convex manner 15 by means of a horizontally and vertically folded counter-concave mold 16. The panels 1, 2 are compressed between the suction device folded in a convex manner 15 and the counter mold folded in a concave manner. To increase the speed of the cycle, yet another third suction device 17 can be installed in addition to the convexly folded suction device 15. The third suction device 17 can pick up panels while panels are being folded in the second suction device. After the pressing or folding process is complete, the panels 1, 2 can be placed back on the final folding ring 7b by means of the suction device folded in a convex manner 5. A cooling region D forms the final portion of the oven according to the invention. The pre-heating region A, the pre-folding region B. the intermediate region C, the final folding region D and the cooling region E are placed connected in succession.
    [0001] Figure 2 outlines a cross section of the suction device 5. The suction device 5 includes a counter structure 8 and a cover 9 that surrounds the counter structure 8. The counter structure 8 can be folded over as a whole or locally in relation to the final folding ring 7b (not shown). The counterframe acts as a “negative mold” in relation to the final folding ring 7b (not shown). A stream of air 13 is drawn into the suction device 5 over the edge area 14 between the counterframe 8 and the cover 9. With the help of the resulting negative pressure the panels 1, 2 are sucked in, raised and folded. The contact surface 12 of the counterframe 8 with the second panel 2 is preferably coated with a flexible or soft material, such as or fire-resistant glass fibers, metal or ceramic.
    [0002] Figure 3 outlines a flow chart of the method according to the invention. Two panels 1, 2 are placed in a pre-folding folding ring 7a over a movable folding ring 3. The folding ring 3 is then transported into an oven. The panels 1, 2 are heated by a heating device 6 which consists of irradiation heating elements to the softening temperature of the panels 1, 2, roughly 580 ° C to 650 ° C. During the course of heating the panels 1, 2, the panels 1, 2 located in the pre-folding ring 7a are pre-folded with the help of gravity to 5% to 40% of the average final fold to be obtained. The heating device preferably comprises an arrangement of individually controllable heating tiles separately. As a result of the different thermal radiation of the tiles, different temperature regions can be carried out on the panels 1, 2. The different temperature regions allow a gradual heating of the panels' surface. The panels 1, 2 are then lifted by means of a preferably convex suction device 5 and folded to 102% to 130% of the average final fold. In a next step, panels 1, 2 are placed by means of the convex suction device 5 on the final folding ring 7b on the movable folding ring holder 3. The pre-folding ring 7a and the final folding ring 7b in each case, they are bent corresponding to the projected panel geometry. The pre-folding ring 7a and the final folding ring 7b are preferably placed on the same movable folding ring holder 3 and can be converted by removing a pin from the pre-folding ring 7a to the folding ring end 7b. The panels are heated in the intermediate region C. The panels 1, 2 placed on the final folding ring 7b are pre-folded on the surface by thermal irradiation. For this, a temperature gradient is set above panels 1, 2 in the intermediate region C, and different surface folding is made possible by different heating. The heating device 6 preferably includes an arrangement of separately controlled individual heating tiles. As a result of the different thermal radiation on the tiles, different temperature regions can be realized on the panels 1, 2. Then, the panels are raised in the final folding region D by means of a second suction device 15 and compressed against a counter preferably concave mold 16 and shaped. The countermold has “inverted” geometry compared to the second suction device 15. Then panels 1, 2 are placed over the final folding ring 7b and cooled. LIST OF REFERENCE CHARACTERS 1. first panel 2. second panel 3. movable folding ring holder 4. oven 5. (first) suction device 6. heating device 7a. pre-folding ring 7b. final folding ring 8. against structure 9. cover 10. transport device 11. air baffle 12. contact surface 13. air flow 14. edge area 15. second suction device 16. against mold 17. third device suction line 18. distance between panel and air baffle 19. ceiling surface A. pre-heating region B. pre-folding region D. second folding region C. heating region E. cooling region
    权利要求:
    Claims (24)
    [0001]
    1. Method for folding a panel, characterized by the fact that it comprises: placing at least one panel (1, 2) on a pre-folding ring (7a) with a movable folding ring holder (3), the ring holder mobile folding (3) being moved into an oven (4), and the at least one panel (1, 2) being heated to a softening temperature and pre-folded for a pre-fold, comprising from 5 % up to 50% of a final edge bend, raise the at least one panel (1,2) by means of a first suction device (5); additionally, with a first suction carried out by means of the first suction device (5), the at least one panel (1, 2) in addition to the pre-fold obtained in the pre-fold ring (7a), in which, during the folding on a folded contact surface (12) of a counter frame (8) of the first suction device (5) there is a minimum distance (18) of 3 mm to 50 mm between the at least one panel (1,2) and an air baffle (11) of a cover (9) of the first suction device (5) surrounding the counter frame (8), place at least one panel (1, 2) by means of the first suction device (5 ) in a final folding ring (7b) on the movable folding ring holder (3); fold the at least one panel (1,2) until the final edge fold, where a pre-fold surface of at least one panel (1,2) in the final fold ring (7b) takes place by means of thermal radiation , by means of a second suction device (15): raise the at least one panel (1,2); compress, with a second suction carried out by means of the second suction device (15), the at least one raised panel (1, 2) against a counter mold (16), in which the at least one raised panel (1,2) is bent into a final surface geometry; and replacing the at least one compressed panel (1, 2) on the final folding ring (7b); and cool the at least one replaced panel (1, 2).
    [0002]
    2. Method according to claim 1, characterized in that the at least one panel (1,2) is bent by means of the suction device (5) to 100% up to 130% of the overall final edge fold.
    [0003]
    Method according to claim 2, characterized in that the at least one panel (1,2) is folded by means of the suction device (5) to 105% to 120% of the overall final edge fold.
    [0004]
    4. Method according to claim 1, characterized in that the at least one panel (1,2) is folded by means of the first suction device (5) with a final fold locally different from the edge.
    [0005]
    5. Method according to claim 4, characterized in that the at least one panel (1, 2) is folded locally in the first or second suction device (5, 15) by means of an air current or an air ring. bottom folding.
    [0006]
    6. Method according to claim 1, characterized in that the at least one panel (1, 2) is heated by means of a temperature gradient over a glass surface with a maximum of 0.05 K / mm up to 0, 5 K / mm.
    [0007]
    Method according to claim 6, characterized in that the at least one panel (1, 2) is heated by means of a temperature gradient over a glass surface with a maximum of 0.1 K / mm to 0, 2 K / mm
    [0008]
    8. Method according to claim 1, characterized in that the at least one panel (1,2) is heated to a temperature of 500 ° C to 750 ° C.
    [0009]
    Method according to claim 8, characterized in that the at least one panel (1) is heated to a temperature of 580 ° C to 650 ° C.
    [0010]
    10. Method according to claim 1, characterized by the fact that the panel (1, 2) is pre-folded by means of gravity in the pre-fold ring (7a) for 10% to 30% of the final local edge fold.
    [0011]
    11. Method according to claim 1, characterized in that the suction device (5) builds a suction pressure from 1 kg / m2 to 100 kg / m2.
    [0012]
    12. Method according to claim 1, characterized by the fact that the two panels (1,2) are folded.
    [0013]
    13. Furnace (4) for folding panels using the method for folding a panel (1,2) as defined in any one of claims 1 to 12, comprising: a pre-folding ring (7a), a folding ring holder movable (3), final folding ring (7b), a preheating region (A) to preheat at least one panel (1, 2) on the pre-folding ring (7a) on the ring support movable folding (3) configured to pre-fold the panel (1,2) from 5% to 50% of a final fold of an edge of the at least one panel (1, 2) at a softening temperature, a region of pre-folding (B) with a vertically displaceable folded first suction device (5), comprising at least one counterframe (8) with a folded contact surface (12), as well as a cover (9) surrounding the counter structure (8) with an air baffle (11) for additional folding of the pre-folded panel (1,2), characterized by the fact that the folded suction device (5) is configured to fold the pre-folded panel (1,2) from 102% to 130% of the final edge fold, a heating region (C) for the final fold of the edge of at least one panel (1,2) on the final folding ring (7b) on the movable folding ring holder (3) and for surface pre-folding of at least one panel (1,2) by means of thermal radiation, a second folding region (D) with a second vertically displaceable suction device (15) and a horizontally displaceable folded counter mold (16) for additional surface folding of at least one panel (1,2), and a cooling region (E).
    [0014]
    Oven (4) according to claim 13, characterized in that it also comprises a third suction device (17) disposed in the second folding region (D).
    [0015]
    15. Oven (4) according to claim 13, characterized by the fact that it further comprises a heating device (6) to heat the preheating region (A), the pre-folding region (B), the region of heating (C) and the second folding region (D).
    [0016]
    16. Oven (4) according to claim 15, characterized in that the heating device (6) includes radiant heaters.
    [0017]
    17. Oven (4) according to claim 16, characterized by the fact that the radiant heaters are infrared radiators.
    [0018]
    18. Oven (4) according to claim 13, characterized in that the heating device (6) includes an arrangement consisting of individually controllable heating tiles or heating fields.
    [0019]
    19. Oven (4) according to claim 13, characterized in that the folded contact surface (12) is coated with a flexible or soft material.
    [0020]
    20. Oven (4) according to claim 19, characterized by the fact that the folded contact surface (12) is coated with fire-resistant glass fibers, metal or ceramic.
    [0021]
    21. Oven (4) according to claim 13, characterized by the fact that the folded contact surface (12) defines an enlarged and protruding portion of the counter structure (8).
    [0022]
    22. Oven (4) according to claim 13, characterized by the fact that the cooling region (E) is laterally spaced from the preheating region (A).
    [0023]
    23. Oven (4) according to claim 22, characterized by the fact that the cooling region (E) and the preheating region (A) are located on the same vertical level.
    [0024]
    24. Oven (4) according to claim 13, characterized by the fact that the folded contact surface (12) and the air baffle (11) are spaced from 3 mm to 50 mm apart.
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    同族专利:
    公开号 | 公开日
    JP2014500222A|2014-01-09|
    EA030887B1|2018-10-31|
    CN103237770A|2013-08-07|
    US8978418B2|2015-03-17|
    KR20130117832A|2013-10-28|
    ES2663722T3|2018-04-16|
    MX2013006560A|2013-07-03|
    US20130340479A1|2013-12-26|
    EP2651837A1|2013-10-23|
    EA201390864A1|2013-11-29|
    US9650279B2|2017-05-16|
    MX337354B|2016-02-29|
    EP2463247A1|2012-06-13|
    WO2012080072A1|2012-06-21|
    EP2651837B1|2018-01-24|
    KR101553455B1|2015-09-15|
    JP5714719B2|2015-05-07|
    US20130313852A1|2013-11-28|
    BR112013013249A2|2016-09-13|
    PT2651837T|2018-04-30|
    CN103237770B|2016-04-06|
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    法律状态:
    2018-04-03| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-06-04| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-11-26| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-04-07| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP10194711.7|2010-12-13|
    EP10194711A|EP2463247A1|2010-12-13|2010-12-13|Method and device for bending discs|
    PCT/EP2011/072170|WO2012080072A1|2010-12-13|2011-12-08|Method and device for bending sheets|
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