EP0953088A1 - Tragwerk und dessen konstruktionselemente - Google Patents
Tragwerk und dessen konstruktionselementeInfo
- Publication number
- EP0953088A1 EP0953088A1 EP98904085A EP98904085A EP0953088A1 EP 0953088 A1 EP0953088 A1 EP 0953088A1 EP 98904085 A EP98904085 A EP 98904085A EP 98904085 A EP98904085 A EP 98904085A EP 0953088 A1 EP0953088 A1 EP 0953088A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composite anchor
- connection
- composite
- anchor
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/348—Structures composed of units comprising at least considerable parts of two sides of a room, e.g. box-like or cell-like units closed or in skeleton form
- E04B1/34815—Elements not integrated in a skeleton
- E04B1/34838—Elements not integrated in a skeleton the supporting structure consisting of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/14—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with substantially solid, i.e. unapertured, web
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2652—Details of nailing, screwing, or bolting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2672—Connections specially adapted therefor for members formed from a number of parallel sections
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
- E04B1/2604—Connections specially adapted therefor
- E04B2001/2676—Connector nodes
Definitions
- the invention relates to a supporting structure, in particular for buildings with at least one main level and at least one supporting level extending at an angle thereto, and to structural elements, in particular connecting elements and connecting parts for such supporting structures, and also methods for producing such supporting structures, especially their supports.
- a disadvantage of this structure is that it is very expensive both in production - for example, the assembly is regularly associated with costly welding work with subsequent concrete pouring - and in terms of the number of different items required, which are otherwise adapted and expensive mon - must be animal.
- the creation of such structures is only to be carried out by a specialist.
- a further disadvantage that should not be underestimated is that the individual parts in the known structures have to be connected to one another in a non-detachable manner and are therefore out of the question for repeated use, or any necessary repairs, if any, are then only possible with enormous effort.
- the invention is therefore based on the problem of proposing a supporting structure, its structural elements, in particular connecting elements and connecting parts, and a method for producing such supporting structures, especially their supports, which do not have the aforementioned disadvantages, but rather are characterized in particular by the fact that their elements have no complex additional measures can be assembled in a simple manner, preferably releasably, to form a supporting structure.
- This problem is solved according to the invention by a structure with the features of the main claim.
- wooden beams we mean any type of wooden supporting elements, including supporting elements containing wood, but preferably those that are suitable for a bond with the anchors described below.
- These connecting anchors which are embedded in wooden beams in the manner described and claimed below, are distinguished by the fact that they provide connection options - these are conceivable in a wide variety of embodiments, with a standardized internal thread at the end having been found to be particularly advantageous , which leads to a 100% power transmission between the structural elements and enables simple, time-saving and cost-saving installation - also in combination with other materials. Further advantages can be found in the following description and the claims.
- connection element means a spatially oriented component, preferably made of metal, in particular steels with angularly offset connection options in three dimensions for the above-mentioned wooden beams.
- connection or connection node is a combination of several connection parts.
- the connecting part consists of two in the main plane of the structure, which for example also floors of individual floors one Building forms, lying, parallel plates, namely a base plate and a spaced head plate. So-called end plates are arranged between these two plates, preferably perpendicularly to them. Both the base, head and end plates each have different connection options for further connecting elements and / or wooden supports. This can be, for example, bores that are designed to accommodate screw-forming means.
- the end plates serve to enable a connection between wooden beams and connecting parts and between connecting parts.
- the base and top slats offer the possibility of coupling the wooden beams that form the support plane that runs perpendicular to the main plane.
- These support levels can represent walls within a building, for example, or can be expanded to cover them in a variety of ways, while the main levels represent the base of the storey floor.
- any type of detachable connections is suitable for the connections between wooden beams and connecting parts;
- screw connections are preferred, since the elements required for this are available in a standardized manner in any hardware store, which means that there is no need for custom-made products, which has a positive effect on the costs of the entire structure.
- the invention The structure can thus be put together easily, even by a layperson, and enables every building owner to build their own home to a considerable extent. All that is required for this is a small number of components, namely the connecting parts, the wooden supports and means for establishing a connection between the wooden supports and the connecting parts, these means being integrated into the wooden supports according to the invention.
- the invention proposes a connecting element according to claim 28, which is a composite anchor, which can be designed according to the subsequent patent claims in the manner described below and leads to a surprisingly simple and stable connection with a variety of design options.
- Connecting elements for use on different components are known in many different embodiments. They are particularly important in construction systems that are exposed to loads, such as in buildings and the like. the case is.
- Various types of support systems have prevailed here, which have to meet a wide range of requirements, both with regard to the materials to be used and the force required. This applies primarily to the load-bearing capacity of the individual parts and the overall structure - also taking into account the intended moderate as well as for the overall visual and detailed impression.
- a typical example of the constructions mentioned here is the timber construction, in which beams or the like. Support elements are connected to each other to form stable wall, floor and / or roof structures. Different material combinations are also used, i.e. the material wood can be combined with concrete as a filling compound as well as with plastic or metal parts.
- the material wood, solid wood, plywood and other wood-based materials come into question, whereby the solid wood in the form of round wood, beams, squared wood, boards and, more recently, cross beams come into question, which absorb and increase the forces which are relatively high compared to the size of their cross-section are able to transfer.
- connections particularly in the area of the ends of these components, have been developed in a variety of ways and put into practice.
- dowels driven into the longitudinal axis of the beam in the area of tongue and groove connections with bolts and additional screw nails or nail connections with cover brackets or tenons with transverse hardwood dowels or recessed T-steel with rod dowels or tenons, in particular shear pins and the like more.
- front-side connections can also be achieved by a so-called beam joint, in which the beam sides are of a special design using transverse dowels in the area of their ends on both sides with supporting parts for power transmission.
- connection systems constructed with them are very complex, both in the production - for example in the case of butt connections via pins and grooves to be formed in the supporting parts to be connected - and also with regard to the large number of individual parts required, which, moreover, have to be adapted and complicated and frequently installed on-site in uncomfortable positions.
- these known connection systems can only be implemented in such a way that they are visible to the outside, unless in the relevant areas, e.g. in the area of the tabs or dowel faces, additional lamination measures would be taken.
- anchors are used, which require rod dowels that are introduced into the longitudinal axis of the supporting element.
- This known system consists of five basic elements, namely dowels, anchor body, casting compound, connecting screw and welding sleeve.
- This known system thus also has at least the disadvantages mentioned above, in which case the backfilling with grout and the optical impairment mentioned above should also be mentioned.
- the invention is characterized in particular by the fact that its elements are not optically recognizable without additional measures, the number of individual parts required for this connection being minimized and the installation effort being reduced to a minimum.
- a "cross bar” is a bar that is created by dividing one or more tree trunks and rotating the sections around their longitudinal axis and then connecting these parts to form a new bar, with the inner surface then originally forming the outer surface of the tree or the Arched surfaces forming trees create an opening that extends essentially centrally along the crossbar.
- a crossbar provided according to the invention results in surprising advantages, which consist in particular in that, in addition to saving wood and minimizing shrinkage cracks while at the same time making the outer area more resistant, the connecting element is arranged on the inside and is thus related to the beam in the non-force-transmitting plane (neutral Fiber), which is actually statically unusual, because it would be normal to provide a connecting element in the four beams, for example in the four corners, as well-known connection types of cross beams show, but not in the center.
- the connecting element lies on a plane that is actually statically unusual and is therefore not itself exposed to any bending forces.
- the invention takes advantage of the fact that a central axial recess, which is already present in the case of crossbeams, is used for inserting the connecting element, while in the prior art a specific recess, which is matched to the connecting element with regard to length and depth, is used in an intended manner. additional step in the beam parts must be introduced.
- connection proposals which follows a path that deviates completely from the previously known connection proposals, enables for the first time a type of “internal nailing” which opens up unpredictable possible uses.
- the novel connection impresses with a simple structure that does not require any additional securing elements.
- the core of the composite anchor can be rod-shaped and the mandrels can be designed with a smooth surface. If, in a further embodiment, the core is not designed to be straight but wavy, an even more secure hold is achieved, with the result that the tie rod can be kept shorter. In this sense, a further improvement can be achieved in that the core surface is corrugated or provided with elevations.
- the core can have a round, in particular circular cross-section or a polygonal, in particular square or triangular cross-section.
- connection options that are provided at at least one core end are also conceivable in a variety of ways, an end-face internal thread at at least one core end having been found to be particularly advantageous.
- this internal thread for example, a threaded pin or the like. be screwed in, which can additionally carry connection elements at its free end or can also be designed in the form of hooks, balls, buttons, eyelets or the like.
- the composite anchor can be inserted into a component to be connected to at least one further component and, if appropriate, also extend transversely through the beam.
- the mandrels are integrally connected to the core and can be distributed irregularly or evenly on the outer surface of the core.
- Different variants are also possible with regard to their axial alignment, depending on the requirements, and it has proven advantageous in terms of the method for introducing the anchors into the support element in the manufacture of the composite system, which will be explained in more detail below, for a maximum load possibility, which Let mandrel axes run perpendicular to the longitudinal axis of the core, with in particular half of the number of mandrels pointing in one direction and the other half pointing in the opposite direction.
- mandrels are aligned parallel to one another, there is the advantage of introducing (pressing in) the composite anchor into the supporting elements of relatively low penetration forces to be applied.
- the mandrels can be arranged on the outer surface of the core along its longitudinal axis in parallel rows, the mandrels of one row being offset from the mandrels of at least one adjacent parallel row.
- rows of thorns pointing in each of the two directions indicated above is arbitrary, depending on the requirement, four rows of thorns pointing in one direction have proven to be advantageous in the case of a diamond-shaped, in particular square cross section of the core, again two rows each on one of the square side surfaces.
- rows of mandrels can run in a straight line and parallel to the longitudinal axis of the core, but also diagonally to it.
- the mandrels in their simplest design have a smooth surface; however, this can also be graduated, with at least one undercut on each mandrel, which can be formed all around the mandrel.
- the surface can also be designed similarly to a drill nail, have a circumferential, in particular spiral, bead or can also be shaped like a saw tooth.
- the mandrels are preferably connected in one piece to the core, which is particularly the case when the composite anchor is cast and consists, for example, of iron, malleable cast iron, cast steel, brass or aluminum; ceramic production is also possible.
- the composite anchor according to the invention can also be produced from sheet metal. Overall, the production processes in particular include pressing, punching, pressing, edging, nibbling, milling, turning and / or suitable forming processes depending on the material and requirements.
- the composite anchor according to the invention with which an end connection of support elements can be created.
- the guasi internal nailing of the composite anchor in the support element mentioned in this context is achieved in that the composite anchor (s) is or are pressed or pressed into the support element.
- the supporting elements in question are therefore follow such that they consist of several sub-elements, as is the case for example with so-called cross beams, which are preferably glued together from preferably four appropriately cut bar quarters with a special alignment of the tree rings familiar to a person skilled in the art, in order to thereby achieve a particularly high load-bearing capacity.
- the invention is particularly advantageous when using crossbeams, other glued wooden structural elements, such as normal beams, glued board glue or the like, can also be used.
- the composite anchor is preferably cast in.
- each beam normally being given an anchor at each end.
- the anchor or the anchors can extend through the entire length or thickness of the beam.
- a composite anchor extending across the beam is recommended, inter alia, at crossing points, at which one or more additional beams, each with the end face connected to the anchor located at the crossing point.
- the armature or the core is aligned on the end face with the beam end face.
- it may also be advisable to allow the anchor core to protrude over the end of the beam which in any case is expedient in the case of an external thread or an attached or cast-on threaded pin in order to use the above section accordingly, e.g. also in the form of a button bar or through side connection options, e.g. by means of a transverse internal thread.
- a set-back position of the composite anchor is also possible, as a result of which a so-called "fore-wood" is created, which increases the effect intended with the anchor, i.e. secures it even more effectively against tearing out, and at the same time creates a more favorable distribution of the reaction forces in the area of the beam ends in the event of a load and thus optimal connections.
- the composite anchor (s) lie in at least one axis of symmetry; however, they can also be arranged at a sufficient distance from the side surface of the beam in the pull zone. In addition, it is advantageously also possible to arrange a plurality of anchors one above the other in a preferably parallel orientation.
- the composite system according to the invention is suitable for a variety of constructions, such as Wood-wood, wood-steel and / or wood-steel-concrete constructions, as well as, of course, in combination with plastic as a supporting element and also in combinations of such components made of composite materials other than those specified above.
- the insertion of the bonded anchor during the production process - gluing with subsequent pressing the beam sections - is extremely accurate and possible under visual observation, which is not the case with the previously mentioned, previously known end connection proposals, since in these the dowel or anchor is inserted into a predrilled blind hole that cannot be seen and is not glued or glued there must be pegged.
- the beam parts are glued together to form a complete beam so that the insertion of the composite anchor, preferably previously dipped in glue, takes place at an intermediate stage, for example when the two lower halves of a crossbeam are glued, at which point in time the composite anchor is exactly, if necessary can be repeated with the help of simple laser techniques, even positioned to the millimeter.
- Transport logistics are also made considerably easier, since the use of the composite anchor according to the invention means that large structures no longer have to be prepared in the factory, but the individual parts are screwed to the construction site with precision, and thus transport costs can be saved by the resulting simplification of transport.
- the static calculations are also easier to carry out and can be more easily typed with regard to the use of certain materials and the dimensions to be provided, and in future special statics can be created more easily and therefore also more cost-effectively.
- the present invention also encompasses a rational method for producing the supporting elements provided with such a connecting element, it being emphasized here that this method is in no way limited to composite anchors of the type described above, but is also suitable for the introduction of other types of anchors or connecting elements .
- a suitable device for performing the method is specified in its basic concept in claim 97 with configurations according to the subsequent claims.
- the invention takes advantage - with a surprising and advantageous effect - of the fact that in many cases support elements are made up of several parts, as is the case, for example, with crossbeams, which are composed, preferably in a known manner, of several “trunk parts” with special fiber orientation are glued together and are characterized by particularly favorable wearing properties.
- the introduction of the connecting element is built into the process of assembling the support element parts.
- other supporting elements such as glue binders and also one-piece supports, the latter then having to be broken down into partial elements in order to be able to subsequently proceed in accordance with the invention.
- Crossbeams are particularly suitable for the invention because, due to their special type of manufacture, they have a central recess which can be used in an advantageous embodiment of the invention for the introduction of the connecting elements, in particular if it is a composite anchor according to the type claimed.
- corresponding recesses must first be made without the outstanding properties of the supporting structure to be created with the aid of the composite anchor according to the invention having suffered considerable losses.
- Fig. 2 shows a combination of four connecting parts with attached wooden beams which point in three different directions;
- Fig. 3 shows a section of an overall structure with a pronounced, relatively large main plane, e.g. Floor;
- Figure 4 is a perspective view of a structure with two main levels, for example floors;
- FIG. 7 shows the crossbeam part according to FIG. 6 with an inserted composite anchor at each end
- Fi. 8 a further step in the manufacturing process of the composite system, namely shortly before the two glued crossbeam halves are joined;
- FIG. 10 shows a representation corresponding to FIG. 8 using the example of a glue binder
- FIG. 11 shows an installation situation similar to that of FIG. 10, but in which the anchors are inserted without “fore-wood”;
- FIG. 13 is an exploded view of a relatively short crossbeam with a continuous composite anchor
- 15 is a perspective view of a connecting node with two crossbeam pairs held at an angle to one another, each of which consists of two crossbeams, one on top of the other, each with a composite anchor;
- 16 is a plan view of a system shown schematically
- FIG. 17 shows a part of a compound station of an inclined feed as part of the system according to FIG. 1;
- Fig. 19 the compound station, in cross section.
- Fig. 1 shows two connecting parts 1, each composed of a hexagonal base plate 2 and a hexagonal head lath 3 arranged parallel thereto. Perpendicular to and with each base plate 2, five rectangular end plates 4-1 to 4-5 are connected, with the free upper end edges of the head plate 3 being firmly connected. These plates are preferably made of steel and are welded together.
- base 2, head 3 and end plates 4-1 to 4-5 each have bores 5. These serve to connect a connecting part 1 either with one or more further connecting parts 1 to a connecting node - this would be here, for example possible via the end plates 4-1 and 4-5 - releasable to connect, or offer the possibility of providing a connection to other structural elements.
- FIG. 2 an assembly of structural elements to a support and support structure is shown in detail, in which four connecting parts 1 are linked via their end plates 4-1 and 4-5 such that base plates 2 and head plates 3 point in the same direction and the end plates 4-2, 4-3 and 4-4 offer connection options for wooden beams 6, which then form the main supporting plane and extend parallel to the base 2 and top plate 3.
- four connecting parts 1 are linked via their end plates 4-1 and 4-5 such that base plates 2 and head plates 3 point in the same direction and the end plates 4-2, 4-3 and 4-4 offer connection options for wooden beams 6, which then form the main supporting plane and extend parallel to the base 2 and top plate 3.
- the end plates 4-2, 4-3 and 4-4 are arranged so that the e.g. detachably fastened by screws
- Wooden beams 6 each enclose an angle of 45 °.
- the end plates 4-1 and 4-5 are each perpendicular to the plates 4-2 and 4-4.
- wooden beams 7 are mounted, which are aligned perpendicular to the wooden beams 6 forming the main planes and form the support planes.
- the connection between the wooden beams 7 and the connecting node are carried out here in the same way as those described above.
- FIG. 3 a section of an overall structure is shown, which has in its outwardly facing corner areas connection parts 1 with holes 5, which allow attachment of any structural elements and thereby continue the construction of the structure in any conceivable manner and direction.
- the main level of the supporting structure is formed by a central connecting node composed of four connecting parts 1, the base plates 2 of which face down and the top plates 3 of which face upwards, and by four wooden beams 6 which run at right angles to one another and taper in a star shape onto the connecting nodes.
- the wooden supports 6 are fastened to the connecting node in the same way as already described in connection with FIG. 2, namely via the end plates 4-3 of the individual connecting elements 1.
- FIG. 4 shows a completed embodiment of a supporting structure, in which, in contrast to the embodiment according to FIG. 3, the main planes are formed from supports 6 running parallel to one another.
- the advantage of this design is, among other things, that the respective ceiling construction is constructed with parallel ceiling beams, which on the one hand only require a very simple cut and on the other hand enable uniform feeding.
- stiffening, diagonally extending beams can also be attached to the support levels with suitably aligned connecting parts.
- panels can be mounted on the wooden beams 6 of the main level; for this purpose, the head plates 3 of the connecting elements 1 offer upward connection options. The same applies to any partitions in the support levels of the structure.
- the head and base plates thus represent excellent contact surfaces for every assembly variation, which considerably facilitate assembly, which ultimately only requires screwing, which can be carried out without specialist knowledge.
- FIG. 5 shows a composite anchor 13 according to the invention in plan view, specifically in the version with an octagonal core cross-section and with mandrels 14 and 14a which are offset in parallel rows from one another.
- the front recess in the form of an internal thread 16 can also be seen in dashed lines.
- Fig. 6 shows the lower half 11 of a cross bar - interrupted in the middle part in order to achieve a shortened representation - which consists in a known manner of two glued partial beam pieces 11a and 11b.
- the course of the tree rings is shown schematically on the face.
- the special joining of the correspondingly cut sections 11a and 11b results in a groove-like groove 12 on the upper side.
- parallel and perpendicular thorns 14 on the armature core 15 which is otherwise provided with a central recess 16 on the end face and is set back relative to the beam end face, so that the so-called "fore" A is created at both ends.
- the composite system according to the invention according to FIG. 9 results, in which the two end-side composite anchors 13 have been made visible by dashed lines for clarification. 9 shows a possibility of an end-side connection to the composite anchors 13 in the form of a screw 18 with a hexagon head screwed into the recess 16 provided with an internal thread. As already stated elsewhere, modifications of both the front end of the anchor itself and of course are if necessary, connecting elements to be attached to it.
- each composite anchor in particular if it protrudes beyond the beam end face, can be provided with internal threads that run through the longitudinal axis, possibly through them, which then accordingly enable further, direction-modifiable connection options, for example in the form of oblique and / or transverse threaded spindles.
- the anchor core 15 is aligned with the end face of the beam 11, so that there is no fore A, which can be desirable in certain applications.
- Fig. 12 shows a further variant, in which the composite anchors 13 are not arranged symmetrically in the beam cross section, but off-center, which can prove to be advantageous in certain load cases, since the anchors 13 can then be placed in the tension zone depending on the load situation, so that a corresponding one Influence on the connection point for deriving the supporting forces can be exerted.
- FIG. 13 shows a relatively short crossbeam 11/17 shortly before completion of the composite system, which is provided with a continuous composite anchor 13, of which only a row, for the purpose of simplifying the illustration, similarly to the previously explained FIGS. 7, 8 and 9 Mandrels 14 is shown completely, while from the row on the adjacent inclined surface - the core of the composite anchor shown here is square in cross section - only a few mandrels 14a are shown for reasons of clarity.
- FIG. 14 shows some possible core cross sections, namely FIG. 14a a square core cross section 15a, FIG. 14b schematically showing the insert in a bar 11/17 in a front view.
- FIG. 14c shows an octagonal cross section 15b, while in FIG. 14d an annular cross section 15c and in FIG. 14e a triangular cross section 15d is shown.
- FIG. 14e shows an octagonal cross section 15b, while in FIG. 14d an annular cross section 15c and in FIG. 14e a triangular cross section 15d is shown.
- the possibility of connection to the composite anchor 13 is indicated in the form of an internal thread 16.
- FIG. 14 shows a possibility of parallel alignment of the mandrels 14, one half vertically upwards and the other half opposite vertically downwards, in which case the pressing forces for joining the two beam halves in the direction of the longitudinal axis of the mandrels 14 run.
- the triangular shape according to FIG. 14 can be particularly recommended where the lower half of the carrier is flat on the glue surface.
- mandrels 14 pointing downward could also be provided in the case of a triangular cut.
- FIG. 15 shows particularly spectacularly the enormous variation possibilities of the invention using the example of a particular node, in which four crossbars 11/17 are connected to one another via a connecting part 1 according to the invention, two of which are aligned parallel to one another and the two pairs at right angles run to one another, as is typically the case in the corner region of a ceiling (cf. also FIG. 4).
- the composite anchors 13 - anchors are provided in the manner explained in each bar - are shown projecting beyond the end face of the bar in the illustrated embodiment; in practical use, the bars are of course much longer and the end anchors would be designed so that they can be attached in a simple manner, for example by simply screwing the threaded heads or screws and nuts 18 to corresponding connecting parts 1;
- the connection of the beams 11/17 to the connection part 1 made in this way in the exemplary embodiment shown in FIG. 15 is not visible through the selected perspective illustration, but in particular taking into account the illustration in FIGS. 1 and 9 and 13 without further clear.
- connection parts 1 also makes clear the particular advantage of the connecting parts 1 according to the invention, which results from the fact that the base plate 2 projects beyond the top plate 3 laterally, so that a support surface and, at the same time, stop surface for the connected beams or beams 11/17 is created, which on the one hand absorbs the reaction forces to relieve the load on the composite anchors and on the other hand at least supports, if not guarantees, aligned, angular alignments, so that even laypersons can build a right-angled building in a comparatively short time without time-consuming plumbing and leveling.
- planing line 24 consisting of a planing system 21 with a task 22 and a delivery 23; a package task 25 for the press line 26; a continuous microwave oven 27; a gluing station 28; a transfer station 29; a press station 211; a glue cleaner 212; as well as a downstream filing or delivery
- the method for introducing at least one connecting element into a support element is carried out, for example, as follows:
- the starting material for the crossbeams 215 are wooden planks of different cross-sectional dimensions, which are initially planed on all sides in the planing line 24, beveled at the appropriate point and then separated in the middle.
- the resulting cross bars 125 can have any cross-sectional area.
- the resulting "quarter timbers" 216 are then removed from the production plant shown in FIG. 16 and fed to a drilling station, not shown.
- boreholes are made in the inner sides 217 of the quarter timbers 216 of the cross beam 215 in such a way that the resulting drilling pattern corresponds to the spike pattern of the composite anchor 214.
- These boreholes can be made at any point along the quarter timbers 216, but preferably at the ends at a distance from the end face of the beam, so that the “fore wood” is produced in the end product, which is used to anchor the anchor. kung increased, that is, it secures it even more effectively against tearing out and optimizes the force cone.
- inserting the anchor into a corresponding hole pattern has the advantage that the wood fibers do not splice, more fibers are struck with the thorns and thus the load-bearing capacity the supporting elements considerably, for example about 25% is increased.
- the quarter timbers 216 are then fed via the receptacle 25 to the press line 26, where they are first heated in a continuous microwave oven 27 - temperatures of 90 ° to 100 ° C. have proven to be particularly favorable. The subsequent gluing process can be considerably shortened by this heating.
- the quarter timbers 216 are moistened along the later glue joints 218 and then glued in the gluing station 28.
- the glue is applied by means of rotating nozzles, which enable exact dosing by changing the distance from the wood surface and the speed.
- the correspondingly pretreated and drilled upper quarter timbers 216c, 216d are then fitted onto the lower quarter timbers 216a, 216b including the composite anchor (s) 214 with the drill patterns or the bore pattern introduced there onto the mandrel image of the composite anchor (s ) placed.
- the insertion of the composite anchor 214 is of course also possible by machine, as will be explained below with reference to FIGS. 17, 18a, b and 19.
- FIG. 17 shows the compound station 29 in a schematic, perspective side view.
- This station consists of a feed chute 219 which, according to FIG. 18, runs at an angle of 45 ° to the floor for reasons to be explained and whose rust-like floor itself is formed from a plurality of spaced round bars 220 running in the feed direction.
- This form of supply is chosen for the preferred case that the composite anchors 214 are those which consist of a core 221 with projecting mandrels 222, which then grip between the bars in the manner shown in FIG. 18b and are thus guided securely.
- the inclined position of the feed chute 219 results from the fact that here, using the example of a composite anchor 214 with a core 221 which is square in cross section, a support and alignment are created in which the mandrels 222 to be subsequently inserted into the drilling pattern in the quarter rods 216 of the supporting element then move in the direction extend the hole.
- the repeater device 223 also includes a repeating device 223, which is only indicated by a double arrow A and is operatively connected to a stamp unit 224 (see FIG. 17).
- the stamp unit 224 includes a stamp 225 which, in the exemplary embodiment shown, can be moved vertically up and down and whose lower, free end face has the negative profile of the composite anchor 214.
- the repeating device 223 is located in a parallel orientation at the lower end of the feed chute 219. In operation, it grips the composite anchors 214 individually and transfers them into the area below the plunger 225, which frictionally receives the composite anchors 214 by means of clamping devices 226 arranged laterally on its end faces. These clamping devices 226 are designed in such a way that, depending on the design of the end faces of the composite anchors 214, they either engage in recesses located there or encompass projecting areas located there. As can further be seen from FIG. 17, during this transfer each compound anchor 214 remains in the angular position predetermined by the feed chute 219, ie aligned vertically with the mandrels 222.
- the punch 225 then moves downward, so that at least one composite anchor 214 with its mandrels 222 is inserted into the drilling pattern of the lower crossbeam half 216a, b, which is prefabricated from two quarter bars 216a and 216b.
- the device is set so that the punch 225 only moves up to the upper end face of the lower half of the beam 216a, b, that is, so far that just the mandrels 222 are completely immersed in the material, but destruction by pressing the core 221 into the beam material cannot take place.
- the mutual association and interaction of the feed chute 219, the repeating device 223 and the stamp unit 224 thus guarantee precise alignment and centering of the composite anchors 214 relative to the lower beam half 216a, b.
- the process sequence according to the invention can also be carried out without predrilling the quarter bars 216.
- the punch 225 must be dimensioned so that the mandrels 222 can be pressed into the quarter bars 216.
- the compound station 29 consists of two main areas which are pivoted or rotatable along the longitudinal path or -aufnähme 227 and a swivel mount 228 are formed.
- a plurality of feed chutes 219 (magazines) and stamp units 224 can be provided distributed in the longitudinal direction, which serves for the rational simultaneous production of several support elements.
- the quarter timbers 216 are processed in such a length that, in the glued state, they result in a plurality of support elements 215 by separating them transversely to the longitudinal axis.
- the composite anchor 214 are arranged such that they are distributed over the length in such a way that, after separation, a composite anchor 214 is located near or in the end area of the individual support elements 215.
- the one pivotable longitudinal receptacle 227 of the compound station 29 consists of a cross 231 rotatable about a longitudinal axis 229 with preferably four receptacle guadrants 232a, b, c, d.
- the above-described insertion or pushing in of the composite anchor 214 into a lower crossbeam part 216a, b prefabricated to this extent takes place in the upper right quadrant 232a.
- the quarter timbers 216a, 16b can already be glued and pressed (glue hardening under pressure).
- the lower crossbeam part 216a, b is held in its position by means of a lateral pressure cylinder 233.
- the turnstile 231 is pivoted counterclockwise (see arrow B) by 90 °, so that the position shown in the upper left quadrant 232b is reached .
- the left, parallel to the turnstile 231 aligned swivel mount 228 a similar to the lower beam half 216a, b assembled, possibly already glued and pressed "upper" beam half 216c, d and by corresponding swiveling clockwise (bow arrow C) brought about the axis of rotation 234 in the position shown in the central part of FIG. 19, so that the two beam halves 216a, b and 216c, d lie opposite each other in the horizontal plane.
- the upper bar half 216c, d is pressed in a horizontal direction against the lower 216a, b by means of a further pressure cylinder 235 which is firmly connected to the left swivel mount 228 and thus also carries out the swivel movements, with a plate 236 adjustable according to the double arrow D on the left swivel mount 228 is provided to allow adjustments to different beam dimensions.
- the "upper" beam half 216c, d is pressed to the right onto the lower one until the two end faces 237 abut, so that the free-standing mandrels 222 of the composite anchor 214 are now also in the upper beam half 216c, d recessed or pressed in if the drilling pattern is not available.
- the bar surfaces 237 to be brought into contact are coated with glue.
- the left, U-shaped pivot mount 228, one side of which is formed by the adjustable plate 236, is then pivoted counterclockwise (arrow C) by 90 ° about its axis of rotation 234, so that the upright one shown in the left part of FIG. 19 Position is reached. It is also clear from this that the pressure cylinder 235 follows the pivoting movement.
- the complete wooden beam 215 with inserted tie anchor 214 is automatically lifted into a press 211, in which the beams are glued.
- a press 211 in which the beams are glued.
- press pressures up to 210 bar every 5 minutes. If no continuous microwave oven 27 is arranged in the production line, a longer pressing is necessary, which can be carried out in special pressing stations that accommodate several beams.
- the cross bars 215 are also cleaned in the glue cleaning device 212.
- crossbeam pieces 215 with a length of one meter and a composite anchor 214 inserted at the end, two of which are subsequently made as desired on a finger jointing system by inserting an arbitrarily long crossbeam intermediate piece, which has no composite anchor 214 long support element with connection options on each side. It is also possible to insert two intermediate pieces, that is, to carry out three wedge galvanizing steps. Basically, beams of up to 12 meters in length can be produced, for example with cross sections of 10 x 10, 10 x 20 or 12 x 24 cm.
- any known processing steps are possible, such as planing or chamfering or other machining or pre-assembly work.
- cross-beam quarter bars or already glued and dimensionally grooved cross-beam half-timber which had previously been glued together from two cross-beam quarter-beams, can be pre-drilled in a CNC-controlled automatic drilling machine at a defined location and precisely according to the composite anchor mandrel pattern.
- cross-beam quarter timbers or cross-beam half timbers which are preferably pre-cut on one side to an approximate finished length and on the other hand to an exact finished length, pass, for example, under a gluing station, behind which the composite anchors immersed in glue are inserted into the drilling patterns.
- the crossbeams are glued to the internal composite anchors and then cut or trimmed to the exact finished dimensions. After this process, the outer surfaces are finely planed. It can be seen that, with an optimal arrangement of successive production steps, the finishing steps are limited to the precise trimming of the wooden beams and to the final all-round lifting of the finished cross beam.
- the use of glue trusses is also possible, in which case, due to the multi-layer structure, several composite anchors can be placed one above the other in a beam, similar to the design of several cross beams arranged with a composite anchor and arranged one above the other (see Fig. 15).
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
- Packaging Frangible Articles (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Description
Claims
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19701458 | 1997-01-17 | ||
DE1997101458 DE19701458C1 (de) | 1997-01-17 | 1997-01-17 | Holzbauverbindung |
DE19708827 | 1997-03-05 | ||
DE19708827 | 1997-03-05 | ||
DE29710435U DE29710435U1 (de) | 1997-06-16 | 1997-06-16 | Tragwerkkonstruktion |
DE29710435U | 1997-06-16 | ||
DE19730163 | 1997-07-14 | ||
DE19730163A DE19730163A1 (de) | 1997-03-05 | 1997-07-14 | Verfahren und Vorrichtung zum Einbringen mindestens eines Verbindungselements in ein Tragelement |
PCT/EP1998/000235 WO1998031889A1 (de) | 1997-01-17 | 1998-01-17 | Tragwerk und dessen konstruktionselemente |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0953088A1 true EP0953088A1 (de) | 1999-11-03 |
EP0953088B1 EP0953088B1 (de) | 2001-06-20 |
EP0953088B9 EP0953088B9 (de) | 2001-11-28 |
Family
ID=27438532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98904085A Expired - Lifetime EP0953088B9 (de) | 1997-01-17 | 1998-01-17 | Tragwerk und dessen konstruktionselemente |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0953088B9 (de) |
JP (1) | JP2001508848A (de) |
AT (1) | ATE202398T1 (de) |
CA (1) | CA2278184C (de) |
DK (1) | DK0953088T3 (de) |
ES (1) | ES2161037T3 (de) |
GR (1) | GR3036673T3 (de) |
WO (1) | WO1998031889A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19940846A1 (de) * | 1999-08-27 | 2001-07-12 | Konstruktion Holz Werk Seubert | Bauelement |
DE20306942U1 (de) * | 2003-05-06 | 2003-07-31 | INDUO Gesellschaft zur Verwertung von Schutzrechten mbH & Co KG, 41352 Korschenbroich | System miteinander verbundener Bauelemente |
RU2012153211A (ru) * | 2012-12-07 | 2014-06-20 | Александр Николаевич Емельянов | Клееная балка, анкер для крепления в клееную балку, узловое соединение клееных балок |
US10392803B2 (en) | 2015-07-13 | 2019-08-27 | 9306-1695 Québec Inc. | Composite I-truss |
CN108824653B (zh) * | 2018-08-30 | 2023-11-28 | 福州大学 | 直角六边形钢管混凝土角柱-钢梁节点结构及其施工方法 |
CN110820532B (zh) * | 2019-10-18 | 2021-06-08 | 同济大学 | 可重复拆装梁式桥主梁结构的设计实施方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR520776A (fr) * | 1916-03-29 | 1921-06-30 | Pierre Levasseur | Mode d'assemblage de pièces en bois ou autre, à armature métallique |
GB119525A (en) * | 1917-10-03 | 1918-10-03 | Frederick Thomas Walker | Improved Method of Reinforcing Timber. |
DE855900C (de) * | 1950-08-18 | 1952-11-17 | Hans Vollmar | Holzbauglied, z. B. Traeger, Stuetze, Fachwerkstab od. dgl. |
CH454411A (de) * | 1967-06-19 | 1968-04-15 | Endele Eugen | Profilträger aus Vollholz |
BE748846A (fr) * | 1969-04-24 | 1970-09-16 | Lindal Skuli W | Poutre en bois precontrainte, a couches horizontales, en couches de bois et de metal, et methode pour sa |
FR2165699B1 (de) * | 1971-10-15 | 1974-08-19 | Depret Jean Claude | |
FR2456248A1 (fr) * | 1979-05-10 | 1980-12-05 | Felice Emile Di | Connecteur metallique pour l'assemblage du bois et procede pour son utilisation |
US4742663A (en) * | 1979-12-11 | 1988-05-10 | Koppers Company, Inc. | Concealed load distribution means for wooden beams |
DE3318751A1 (de) * | 1983-05-24 | 1984-12-06 | Peter Dipl.-Ing. 8374 Viechtach Bertsche | Kraftuebertragende holzverbindung |
EP0159452B1 (de) * | 1984-04-16 | 1987-03-11 | Geilinger AG | Knotenpunktverbindungen für Holzstäbe von Fachwerken |
GB2185272A (en) * | 1985-12-16 | 1987-07-15 | Sean Cavanagh | Demountable staging |
CH673305A5 (en) * | 1986-05-02 | 1990-02-28 | Emil Roth & Co Ag | Filling bars for jointed frame trusses - with holding elements fixed by specified plastic adhesive |
DE3638499C2 (de) * | 1986-11-11 | 1996-01-11 | Moser Karl Dipl Ing Fh | Holzverbinder |
CA2010740C (en) * | 1990-02-22 | 1994-05-10 | Wolf Wilbert | Post beam lock connection |
-
1998
- 1998-01-17 ES ES98904085T patent/ES2161037T3/es not_active Expired - Lifetime
- 1998-01-17 JP JP53366998A patent/JP2001508848A/ja active Pending
- 1998-01-17 EP EP98904085A patent/EP0953088B9/de not_active Expired - Lifetime
- 1998-01-17 AT AT98904085T patent/ATE202398T1/de active
- 1998-01-17 CA CA002278184A patent/CA2278184C/en not_active Expired - Fee Related
- 1998-01-17 DK DK98904085T patent/DK0953088T3/da active
- 1998-01-17 WO PCT/EP1998/000235 patent/WO1998031889A1/de active IP Right Grant
-
2001
- 2001-09-20 GR GR20010401530T patent/GR3036673T3/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9831889A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0953088B1 (de) | 2001-06-20 |
CA2278184C (en) | 2007-03-20 |
CA2278184A1 (en) | 1998-07-23 |
GR3036673T3 (en) | 2001-12-31 |
JP2001508848A (ja) | 2001-07-03 |
EP0953088B9 (de) | 2001-11-28 |
ATE202398T1 (de) | 2001-07-15 |
WO1998031889A1 (de) | 1998-07-23 |
DK0953088T3 (da) | 2001-10-15 |
ES2161037T3 (es) | 2001-11-16 |
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