• 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 OF MANUFACTURING A TOWER, ESPECIALLY A TOWER OF IMA WIND ENERGY UNIT, IN WHICH AT LEAST ONE SEGMENT OF RING TOWER IS MADE OF PREFABRICATED RING CONCRETE PARTS ONE OVER ONE WITH TWO SURFACES WITH TWO SURFACES. , ESPECIALLY FOR A WIND ENERGY UNIT, WITH AT LEAST ONE SEGMENT OF CONCRETE RING TOWER, WHICH IS FORMED BY PREFABRICATED RING CONCRETE PIECES ONLY WITHOUT THE OTHER WITH TWO HORIZONTAL CONTACT SURFACES tower (1) of a wind power unit, at least one ring tower segment (2) is made of prefabricated ring concrete pieces (5) arranged on top of each other with two horizontal contact surfaces (21). The prefabricated ring concrete pieces (5), after molding, are fixed in a processing station (27) in the prefabricated factory and the two horizontal contact surfaces (21) of the prefabricated concrete pieces ( 5) are processed coplanarly by roughing in a fixture. A tower (1) of a wind power unit has at least one ring tower segment (2) of concrete formed by prefabricated ring concrete pieces (5) arranged on top of each other (...).
    公开号:BR112012031424B1
    申请号:R112012031424-6
    申请日:2011-06-10
    公开日:2020-12-08
    发明作者:Stefan Bögl；Martin Hierl；Josef Knitl
    申请人:Max Bögl Bauunternehumung Gmbh & Co. Kg.；
    IPC主号:
    专利说明:

    [001] The present invention relates to a method of fabricating a tower, especially a tower of a wind power unit, in which at least one ring tower segment is manufactured from prefabricated ring concrete pieces arranged on top of each other. the others with two horizontal contact surfaces. In addition, the present invention relates to a tower, especially a tower for a wind power unit, with at least one concrete ring tower segment, which is formed by prefabricated ring concrete pieces arranged on top of each other. others with two horizontal contact surfaces.
    [002] Towers for a wind power unit are built from prefabricated concrete parts in a prefabricated factory. According to a usual state of the art method, the prefabricated concrete parts, after their manufacture, are transported to the installation site and joined there to form a tower by overlapping them, on which the concrete parts prefabricated buildings must initially be oriented towards each other. For this purpose, an adhesive molding mortar is inserted between the prefabricated parts to compensate for the high manufacturing tolerances of the prefabricated concrete parts, which, in the case of large pieces as presented here, are, as a rule, of several millimeters. In addition, an adhesive molding mortar between the prefabricated parts is required to establish the tower seal. Disadvantageous here is that the construction by the orientation of the pieces as well as the insertion and curing of the molding adhesive mortar are costly and demand a longer time. In addition, the tower can only be manufactured at the installation site under favorable weather conditions.
    [003] Document DE 10 2008 016 828 A1 therefore suggests an improved method for the manufacture of prefabricated concrete parts for wind power units. Here, the prefabricated concrete part is manufactured in a molding form with a level, flat bottom, so that the underside of the prefabricated concrete part can be manufactured very precisely. A layer of epoxy resin is applied to the upper side of the prefabricated concrete piece, which, after hardening, is milled parallel to the lower side. The molding form must here be very accurate for the manufacture of the bottom side of the level plane, so that the manufacture of the form is comparatively expensive. In addition, the milling station must be provided with a precisely regulated and adjusted intake for the prefabricated concrete part.
    [004] The task of the present invention is to provide a tower and a manufacturing method for a tower of prefabricated concrete pieces, which allow for a simple construction of the tower quickly.
    [005] The task is solved with the characteristics of the independent claims.
    [006] In a method for manufacturing a tower, especially a tower of a wind power unit, at least one ring tower segment is made of prefabricated ring concrete pieces arranged on top of each other with two contact surfaces horizontal. According to the invention, the prefabricated ring concrete parts, after molding, are fixed in a processing station in the prefabricated factory, and the two horizontal contact surfaces of the prefabricated concrete parts are processed coplanarly. by roughing in a fixture. Here, horizontal contact surfaces are processed directly, so that a compensation layer can be dispensed with over the contact surfaces. Costly fabrication of an exact molding form is also not necessary, since the horizontal contact surfaces are processed accurately only after the molding process has ended.
    [007] A tower, especially a tower for a wind power unit, has at least one segment of concrete ring tower, which is formed by prefabricated ring concrete pieces arranged on top of each other with two horizontal contact surfaces . Both the horizontal contact surfaces of the prefabricated concrete parts are, according to the invention, processed coplanarly by roughing with a parallelism tolerance and a flatness tolerance of a few tenths of a millimeter, preferably less than 0.2 mm. The configuration of prefabricated concrete parts with such small tolerances allows a quick assembly of the tower by simply overlapping the building components. Due to the small tolerances, any adjustment / compensation work is no longer necessary, and only the centralization of the prefabricated concrete parts, usually ringed, placed on top of one another should be guaranteed. The observance of such small tolerances in the case of prefabricated concrete parts weighing several tons and dimensions of several meters is possible in the same fixture economically, due to the processing of both contact surfaces.
    [008] It is advantageous when the prefabricated concrete parts are ground with a parallelism tolerance and a flatness tolerance of a few tenths of a millimeter, preferably less than 0.2 mm. The desired precision can be manufactured very well with a grinding method, in which tolerances in the range of 01 mm - 0.2 mm can be achieved.
    [009] If the tower is constructed from rectified prefabricated concrete parts, then, due to the very small deviations in parallelism and flatness, dry joints can be manufactured between two prefabricated concrete parts subsequently arranged one on top the other, without additional measures and without the use of adhesive molding mortar, in which said joints have a width of less than 0.5 in the non-tensioned state of the tower. If the prefabricated concrete parts have been specially ground with tolerances of just 0.1 mm, the width of the joints, in a non-tensioned state, will be less than 0.2 mm. Since the prefabricated concrete parts of the tower are subsequently tensioned together by means of fastening elements and a pre-tensioning is applied to the tower, then the joint width will be further reduced or the prefabricated concrete parts can be fixed between without joints.
    [0010] Especially advantageous is, here, when the prefabricated concrete pieces are tensioned with each other by means of external fixation members and that run inside the tower. The manufacture of prefabricated concrete parts is thereby facilitated since there is no need to enclose tubes for the fixing means. Fixing members also remain accessible for control and maintenance purposes.
    [0011] If the joints are made dry, that is, without the application of an adhesive molding mortar or a compensating mass between the prefabricated concrete pieces at the installation site, then the tower assembly is especially easy and quick execution. Sealing the joints is not necessary due to the high quality construction of the contact surfaces, since, by tensioning the prefabricated concrete parts, the joints can be completely eliminated.
    [0012] For the manufacture of prefabricated concrete parts with exactly coplanar horizontal contact surfaces, it is advantageous when the prefabricated ring concrete parts are rotated, during processing, around their vertical axis. The processing of horizontal contact surfaces in the same fixation is thus made possible in a simple way. It is particularly advantageous here that even less precise storage of the prefabricated concrete part allows horizontal contact surfaces of high precision and parallel to each other.
    [0013] In addition, it is advantageous when the prefabricated ring concrete pieces are processed in fixation lying on a rotating table, that is, in its subsequent installation / assembly position. As a result, especially in the case of conical or parabolic prefabricated concrete parts, the storage of prefabricated concrete parts can be carried out simply on the turntable.
    [0014] For fixing the prefabricated concrete parts on the turntable, they advantageously have a fixing device. This device enables safe admission of prefabricated concrete parts and can already be molded into prefabricated concrete parts or formed by a recess in the concrete. For fixing devices, for example, nuts can be molded into which the steel console engages.
    [0015] For the manufacture of prefabricated annular concrete pieces with a large diameter it is advantageous when the prefabricated annular concrete pieces are, before grinding, assembled with two or more annular and secure segments. Preferably, the prefabricated concrete parts are screwed together or fixed by pins. After grinding, the prefabricated concrete parts are dismantled again in ring segments for transport to the installation site. The ring segments can, due to their comparatively smaller size in relation to the whole rings, also be transported without problems on the streets.
    [0016] In a tower of prefabricated concrete parts, the individual annular segments are again joined to form a prefabricated annular concrete piece by means of a molding adhesive mortar. Since the use of adhesive molding mortar is limited to a very small region, prefabricated annular concrete parts can still be joined and assembled very quickly in a weather resistant manner. In addition, the concrete segments can still be tensioned or screwed together.
    [0017] If the prefabricated ring concrete pieces are made up of two or more ring segments, then it is additionally advantageous when also vertical contact joints between the contact surfaces of the prefabricated ring concrete pieces are made dry. The ring segments are pre-tensioned in a horizontal direction, preferably by means of fixing elements arranged diagonally, for example, by means of screws. The joint, however, can also be configured without a screw connection, where the vertical joint is only secured by the vertical tensioning of the concrete tower segment. The ring segments of a ring are, here, for rings subsequent to each other, respectively arranged in a rotated manner.
    [0018] In order to further improve the tower sealing, however, it may also be advantageous to provide a sealing profile between the horizontal contact surfaces of the prefabricated concrete parts. The prefabricated concrete parts have, therefore, an annular groove for a sealing profile on their upper horizontal contact surface. The annular groove is incorporated, after grinding in the same fixation, in the upper horizontal contact surface of the prefabricated concrete parts. Preferably, the annular groove is incorporated by means of a saw.
    [0019] According to another advantageous modality of the present invention, the prefabricated concrete pieces have on their contact surfaces in the same fixation, at least one recess, preferably at least one hole. In this, then, an element for fixing position or fixing against rotation is inserted, for example, a plastic bushing. Preferably, here, several holes are distributed equally along the perimeter.
    [0020] The centering recesses or holes are incorporated in both horizontal contact surfaces, after grinding, preferably also in the same fixation.
    [0021] According to an advantageous embodiment of the present invention, after grinding and / or after incorporating the annular groove and / or recesses, the prefabricated concrete parts are measured by means of a non-contact measuring system, preferably in the same fixation. By combining several processing steps in a processing station, prefabricated concrete parts can be manufactured with high precision without a storage change, where storage on a turntable advantageously allows processing through various well as the measurement.
    [0022] Other advantages of the invention are described based on the modalities shown below. The figures show: a. Fig.1: an overview of a tower according to the invention with a concrete segment, a steel segment as well as an adapter; B. Fig. 2 is a schematic representation of a processing station and the processing of ring concrete pieces; ç. Fig. 3: a sectional view of an adapter; d. Fig. 4: a representation of a prefabricated annular concrete piece for a tower according to the invention; and is. Fig. 5: a schematic top view of a prefabricated annular concrete piece for a tower according to the invention.
    [0023] Figure 1 shows a tower (1), for example, for a wind power unit, in a general perspective view. The tower (1) is executed in the form of a hybrid tower, in which a segment of the lower tubular concrete tower (2) and a segment of the upper tubular steel tower (3) are provided. In addition, the tower (1) has a lower segment 4 or a foundation. In the steel tower segment (3), there is a known gondola for machinery and a rotor, which are not shown.
    [0024] The concrete tower segment (2) is constructed with prefabricated ring concrete pieces (5), which, in turn, are composed, respectively, of two ring segments (6), as can be inferred Figure 4. As a result, very large towers can also be built economically using the prefabrication method, which have a very large diameter in the foot region, since the prefabricated parts can be easily transported. The steel tower segment (3) can be prefabricated in one piece and transported to the installation site or it can also be made up of several parts, which are joined at the installation site or also, before that, in a location manufacturing / production. In order to allow an easy and flexible connection of the concrete tower segment (2) and the steel tower segment (3), an adapter (7) is provided.
    [0025] The prefabricated concrete parts (5) of the concrete tower segment (2), during the assembly of the tower segment (2), are arranged on top of each other and tensioned dry. The prefabricated concrete parts (5) (see figure 4), which here are composed respectively of two ring segments (6), have, respectively, an upper and a lower horizontal contact surface (21).
    [0026] The figure shows a processing station (27), in which, in a prefabricated factory, the prefabricated and hardened concrete parts (5) are processed by roughing. The processing station (27) has a turntable (29), on which the prefabricated ring concrete pieces (5) are fixed. The processing takes place here, using a gantry grinder (33), which is positioned on the turntable (29) and which is adjustable on all three spatial axes. A grinding head (34) is, therefore, routable to both an upper and lower horizontal contact surface (21), without the need for a new fixation of the prefabricated concrete part (5). The turntable (29) has a drive, so that the prefabricated concrete parts (5), during processing, can be rotated around their vertical axis (28). As a result, it is possible, in a single fixture, to process both horizontal contact surfaces (21) exactly parallel to each other.
    [0027] The prefabricated concrete part (5) here has fixing devices (35) for fixing to the turntable (29). Depending on the type of admission of the turntable (29), especially the prefabricated parts (5) conical can be arranged (admitted), however also be arranged on a properly formed admission.
    [0028] Due to the independent manufacturing stages of molding the prefabricated concrete part (5) and manufacturing the exact horizontal contact surfaces (21), flaws or tolerances of the molding process will have no effect on the formation of the surfaces of contact (21). Due to the fact that both horizontal contact surfaces (21) are manufactured in one manufacturing step and in the same fixation by processing the prefabricated concrete part (5), an expensive adjustment of the prefabricated concrete part (5) in the processing station it is no longer necessary, since the parallelism between the upper and lower contact surfaces (21) is guaranteed in any way. Even angular deviations in the fastening have no effect on the construction of the tower (1) and the formation of joints, since, even in the case of an inclined fastening of the prefabricated concrete part (5), the parallelism between both surfaces contact (21) can be guaranteed.
    [0029] By processing with a gantry grinder 33, prefabricated concrete parts (5) can be ground to an accuracy of up to 0.1 mm - 0.2 mm, so that minimal deviations from flatness and parallelism. Through the highly precise processing of the prefabricated concrete parts (5) by means of grinding, the leakage width 32 between the prefabricated concrete parts (5) arranged on top of each other is less than 0.5 mm, preferably only 0.2 mm. The tower (1) can therefore be built at the installation site, without costly adjustment work and without the provision of an adhesive molding mortar between the individual prefabricated concrete pieces (5), just by simply overlapping the prefabricated concrete parts (5). After reaching the desired height of the tower, the prefabricated concrete parts (5) arranged on top of each other are pre-tensioned by means of fixing members, so that the width of the joints is further reduced. Differentiated measures for sealing the tower (1) are also not necessary due to the minimum and exact configuration of the joints. However, to ensure that the tower is watertight in any way, a sealing profile (31) (see figure 5) can be provided between the individual prefabricated concrete parts (5).
    [0030] As additionally shown in figure 4, the prefabricated concrete pieces (5), (6) may have on their contact surfaces (21) one or more recesses (24), here holes. In these can be used a bushing, for example, plastic (not shown), which engages with the prefabricated concrete part (5), (6) arranged on it, so that a horizontal displacement of the pre concrete parts - manufactured (5), (6) or turning them is avoided. Instead of a plastic anchor, another element of the most varied materials can also be used for position fixation or fixation against rotation. An especially good fixation of the prefabricated concrete pieces (5), (6) individual to each other can be achieved when, as shown above, several dowels or recesses (24) are arranged distributed along the perimeter of the precast concrete pieces - manufactured (5), (6)
    [0031] Figure 5 shows a prefabricated concrete piece (5) which, in addition to the recesses (24), has an annular groove (30) for a sealing profile (31). The overlapping of individual prefabricated concrete parts (5) at the installation site is thereby facilitated. The sealing profile (31) can be inserted in the annular groove (30) already in the prefabricated factory and fixed there. The quick assembly of the tower (1) on the construction site is therefore additionally supported.
    [0032] Especially advantageous is that the recesses (24), the annular groove (30) and possibly other processes can also be incorporated in the same fixation and, thus, prefabricated concrete pieces (5) of very high precision can be manufactured. Due to the fact that all processing steps can be carried out, after molding, in a single processing station (27), prefabricated parts (5) can, despite the highly precise execution, be manufactured quite rational. As can be inferred from figure 2, the processing station (27) has a non-contact measuring system (36), so that defective prefabricated concrete parts (5) can be discarded already in the prefabricated factory.
    [0033] If the prefabricated ring concrete pieces (5) are composed of two or more ring segments (6), as shown in figure 1 or figure 4, then, before the grinding process, they are assembled in form of prefabricated ring parts, and also processed, as well as these. After the grinding of the contact surfaces (21) and, possibly, additional processing steps, the ring segments (6) are again separated from each other, to assume a permitted size for road transport.
    [0034] The vertical contact joints (23) between the individual ring segments (6) are finally molded on the floor at the construction site, in order to obtain resistant prefabricated ring concrete pieces (5). As only a small area needs to be shaped, this does not lead to delays in the tower assembly (1). Eventually, however, the vertical contact joints (23) can also be made dry.
    [0035] To fix the individual ring segments (6) to each other, threaded fastenings (not shown) can be provided in the region of the vertical contact joints (23). A fixation of the ring segments (6) to each other, however, can also be achieved only by the pre-tensioning force of the fixing members (13) as well as by a misalignment of the individual ring segments (6) in each ring (5). Here the vertical contact joints (23) of the subsequent ring are respectively offset by 90 ° (see figure 1).
    [0036] Figure 3 shows an adapter mode (7) in a sectional view. The adapter (7) comprises an inner ring concrete element (8) and an outer ring steel element (9), which has a ring flange (9a) facing inwards at its top end. Especially advantageous is when, as shown here, the steel element (9) has a cross section essentially U-shaped, so that it surrounds the upper region of the concrete element (8). In this way, an especially good connection can be established between the concrete element (8) and the steel element (9) and an especially good load-bearing capacity of the concrete element (8).
    [0037] As can be inferred further from figure 3, in the concrete element (8) of the adapter (7) a plurality of vertically oriented anchoring pins (11) are molded. In the present case, the anchoring pins (11) are guided by corresponding holes (10) of the flange (9a) and extend beyond the upper side (14) of the adapter (7). In a subsequent tower assembly (1), only the steel tower segment (3), which has in its lower region (foot) a fixing flange (16) with a plurality of fixing holes (17) distributed to the along its perimeter, be guided by means of the anchoring pins (11) and can then be fixed. The anchoring pins (11) can be provided with a separating element, so that they are not directly connected with the concrete element (8) and can be dismantled again. As a result, it is possible to later dismantle the tower (1) or replace the anchor pins (11) in the event of maintenance. The anchor pins (11) can also be molded in a wrapping tube, to allow disassembly and exchange.
    [0038] As can also be inferred from figure 3, the flange (9a) of the adapter (7) has a plurality of openings (12) for fixing fixing members (13). In addition, in the concrete element (8) of the adapter (7), surrounding tubes (19) are molded, so that further tensioning of the prefabricated concrete parts (6) is advantageously possible. The fixing members (13) are, therefore, passed through the surrounding tubes (19) in the concrete element (8) and the openings (12) in the flange (9a) and fixed in the upper side (14) of the flange (9a) ). Here, the fastening members (13) are fixed directly on the flange (9a) without anchoring plates. Only in cases of an inclined arrangement of the fastening members (13), as shown here, is a wedge plate (20) underneath. By making the flange (9a) according to the invention, which is particularly well connected with the concrete element (8), it can simultaneously assume the function of a load distribution plate.
    [0039] The adapter (7) has a recess (21) in its lower end, in a mounting position, so that the fixing members (13) are guided only in the region of the adapter (7) inside the wall of the tower (1) and which, furthermore, extend inside the tower outside the wall to a lower segment (4) of the tower (1), where they are also anchored. In order to guide the fastening members (13), however, it can also be provided to fasten them or at least guide them at certain distances along the height of the tower (1) by means of suitable fastening elements or guide elements. Instead of the tensioning shown here by means of external fastening members (13), the pre-tensioning on the concrete tower segment (2) can, of course, also be applied by means of fastening members (13) arranged in the section cross-section of concrete.
    [0040] The present invention is not limited to the modalities presented. Modifications and combinations are also covered by the invention.
    权利要求:
    Claims (15)
    [0001]
    1. Method of making a tower (1), especially a tower (1) of a wind power unit, in which at least one ring tower segment (2) is made from prefabricated ring concrete parts (5 ) arranged on top of each other with two horizontal contact surfaces (21), characterized by the fact that the prefabricated ring concrete pieces (5), after molding, are fixed in a processing station (27) of the production plant. precast and the two horizontal contact surfaces (21) of the prefabricated concrete parts (5) are processed coplanarly by roughing the same fixture and without additional fixation.
    [0002]
    2. Method, according to the previous claim, characterized by the fact that the prefabricated ring concrete pieces (5), during processing, are rotated around their vertical axis (28) and are preferably processed in its subsequent mounting position on a turntable (29).
    [0003]
    3. Method according to any one of the preceding claims, characterized by the fact that the horizontal contact surfaces (21) of the prefabricated annular concrete parts (5) are ground with a parallelism tolerance and a flatness tolerance of less than 0.2 mm.
    [0004]
    4. Method according to any one of the preceding claims, characterized by the fact that the prefabricated annular concrete pieces (5), before grinding, are assembled with two or more annular segments (6) and are secure with each other, preferably screwed together or fixed by pins, which, after grinding, are disassembled again in ring segments for transport to the installation site and are joined again to form prefabricated ring concrete pieces, and are molded and / or screwed together.
    [0005]
    5. Method, according to any one of the preceding claims, characterized by the fact that, after grinding, the upper horizontal contact surface (21) of the prefabricated concrete parts (5) is incorporated into the same fixation, a annular groove (30) for a sealing profile (31), and / or are incorporated in both horizontal contact surfaces (21), recesses (24), preferably centering holes.
    [0006]
    6. Method, according to claim 5, characterized by the fact that, after grinding and / or after incorporating the annular groove (30) and / or recesses (24), the prefabricated concrete pieces (5 ) are measured by means of a non-contact measuring system, preferably in the same fixation.
    [0007]
    7. Method according to any one of the preceding claims, characterized by the fact that, at the installation site, the prefabricated concrete parts (5) are arranged on top of each other and are tensioned dry by means of members of fixation.
    [0008]
    8. Tower (1), especially for a wind power unit, with at least one ring tower segment (2) made of concrete, which is formed by prefabricated ring concrete pieces (5) arranged on top of each other with two horizontal contact surfaces (21), both horizontal contact surfaces (21) of prefabricated ring concrete pieces (5) have a parallelism tolerance and a flatness tolerance of a few tenths of a millimeter, characterized by the fact that both horizontal contact surfaces (21) of the prefabricated concrete parts (5) are processed coplanarly by roughing and that the prefabricated concrete parts (5) have a fixing device that is molded in or formed by a recess in the concrete.
    [0009]
    9. Tower, according to the previous claim, characterized by the fact that the joints (32) between two prefabricated concrete pieces (5) arranged on top of each other, in the unstressed state of the tower (1), have a width of less than 0.5 mm, preferably less than 0.2 mm, and that the joints (32) between two prefabricated concrete pieces (5) arranged on top of each other are made dry.
    [0010]
    10. Tower according to either of claims 8 or 9, characterized in that the prefabricated ring concrete pieces (5) are reworked with a parallelism tolerance and a flatness tolerance of less than 0.2 mm .
    [0011]
    11. Tower according to any of claims 8 to 10, characterized by the fact that the prefabricated concrete pieces (5) have, in their upper horizontal contact surface (21), an annular groove (30) for a sealing profile (31).
    [0012]
    12. Tower according to any of claims 8 to 11, characterized by the fact that the prefabricated concrete pieces (5) have, on their horizontal contact surfaces (21), at least one recess (24) , preferably at least one centering hole, in which an element for fixing position and / or fixing against rotation is inserted, especially a plastic bushing.
    [0013]
    13. Tower according to any of claims 8 to 12, characterized by the fact that a horizontal contact joint (22) between the prefabricated ring concrete pieces (5) is sealed by a sealing profile (31 ).
    [0014]
    14. Tower according to any one of claims 8 to 13, characterized by the fact that the prefabricated ring concrete pieces (5) are composed of two or more ring segments (6).
    [0015]
    15. Tower according to any of claims 8 to 14, characterized by the fact that the ring segments (6) are pre-tensioned, in a horizontal direction, by means of fixing elements arranged diagonally, preferably screws.
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    法律状态:
    2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: E04H 12/00 (2006.01), E04H 12/12 (2006.01), F03D 1 |
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-15| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-09-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-12-08| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/06/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102010030047.0|2010-06-14|
    DE102010030047|2010-06-14|
    DE102010039796A|DE102010039796A1|2010-06-14|2010-08-26|Tower with an adapter piece and method of making a tower with an adapter piece|
    DE102010039796.2|2010-08-26|
    EPPCT/EP2011/057088|2011-05-04|
    PCT/EP2011/057088|WO2011157476A2|2010-06-14|2011-05-04|Tower comprising an adapter piece and method for producing a tower comprising an adapter piece|
    PCT/EP2011/059713|WO2011157659A1|2010-06-14|2011-06-10|Tower of a wind power plant and method for producing a tower of a wind power plant|
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