US20050210796A1 - Formwork component - Google Patents

Formwork component Download PDF

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Publication number
US20050210796A1
US20050210796A1 US11/088,497 US8849705A US2005210796A1 US 20050210796 A1 US20050210796 A1 US 20050210796A1 US 8849705 A US8849705 A US 8849705A US 2005210796 A1 US2005210796 A1 US 2005210796A1
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US
United States
Prior art keywords
board
formwork
thermoplastic element
girder
component according
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.)
Abandoned
Application number
US11/088,497
Other languages
English (en)
Inventor
Josef Frenzl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Woodwelding AG
Original Assignee
Doka Industrie GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Doka Industrie GmbH filed Critical Doka Industrie GmbH
Assigned to DOKA INDUSTRIE GMBH reassignment DOKA INDUSTRIE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FRENZL, JOSEF
Publication of US20050210796A1 publication Critical patent/US20050210796A1/en
Assigned to WODWELDING AG reassignment WODWELDING AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOKA INDUSTRIE GMBH
Assigned to WOODWELDING AG reassignment WOODWELDING AG CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME PREVIOUSLY RECORDED ON REEL 019859 FRAME 0321. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNEE'S NAME IS SPELLED INCORRECTLY. THE CORRECT SPELLING SHOULD BE WOODWELDING AG INSTEAD OF WODWELDING AG. Assignors: DOKA INDUSTRIE GMBH
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B29C65/564—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined hidden in the joint, e.g. dowels or Z-pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • B29C65/607—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking the integral rivets being hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/304—Joining through openings in an intermediate part of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7487—Wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
    • B29C73/06—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements using plugs sealing in the hole
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/04—Forming boards or similar elements the form surface being of wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0009—Cutting out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/14—Wood, e.g. woodboard or fibreboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Definitions

  • the invention relates to a formwork component (form) with at least one wooden or synthetic formwork board.
  • forms In the construction industry, a variety of forms is used to encase an area which is to be poured with concrete, such as a wall or a roof.
  • the forms may be, for example, a plurality of formwork boards which are positioned horizontally close together, so that, after a containment border is assembled, a ceiling can be poured.
  • forms that comprise at least one board and a substructure, in the form of one or more girders or square timbers, or a frame, for example. Such structures may be stored, transported, and deployed as integral forms, traditionally by binding them solidly together with the frames or girders.
  • Methods are also known to repair damage, such as dents or holes to formwork boards.
  • the board is normally milled, and a repair disk is placed in the milled section. This can be achieved by gluing, clamping, nailing, or screwing the disk in place.
  • the methods described, both to fix a board to one or more girders, and to repair a board involve a long processing time, a short life span of the joint, inadequate surface flatness and smoothness, and inadequate corrosion resistance. Furthermore, re-treatment of the joint is commonly needed.
  • WO 98/42988 is an appropriate joining element as well as a method to fix the joining elements in a material with pores or cavities.
  • a closed-end bore is located in the elements to be joined, and a joiner pin is placed in the bore. Energy is targetedly applied to the joiner pin so that it plasticizes and macroscopic bonds are formed in the elements to be joined.
  • the object of the invention is to provide a form with improvements, as regards its connection to a substructure and/or repair, in at least one of the following features: processing time, detachability, durability, surface flatness, surface smoothness, required re-treatment, corrosion resistance.
  • this formwork component comprises at least one wooden and/or synthetic formwork board. At least one thermoplastic element is also provided, which is set in the board and bonded to the wood and/or synthetic material of the board and/or girder.
  • girder in the sense of the present application refers to any load-carrying or load-supporting component or a component to be connected to the board in any other manner. For example, square timbers and the like can also be used for this purpose.
  • the thermoplastic element for joining the formwork board to a girder can be in the form of a dowel or some kind of stud, as described in detail below.
  • the thermoplastic element can be a repair insert or a film to attach a repair insert.
  • the board can be made of wood or synthetic material. It is also possible for the board to comprise a wooden core coated at least in part with a synthetic material. The material combinations described above apply also to a girder to which the board is to be attached. The attachment and/or repair can be carried out in extremely short periods of time in all embodiments.
  • the board may be pre-bored so that the thermoplastic element can be inserted.
  • the girder When attaching a girder to the board, the girder does not have to be pre-bored, although it may be preferable for the girder to be pre-bored as well.
  • the thermoplastic element may be, for example, inserted in the bore or milled section of the board, and then bonded with the board and/or girder.
  • Ultrasound may be used to bond the thermoplastic element. This leads to at least a partial plasticization on the thermoplastic element, so that the plasticized material thereof at least partially infiltrates pores and/or small cavities in the material of the board and/or girder.
  • the thermoplastic element solidifies (hardens) and is thus bonded with the material of the board and/or girder. This is a solid bond and provides for a durable attachment between a board and girder.
  • the thermoplastic element may be utilized in this way to durably bond a repair insert to the board. This also applies to situations in which the thermoplastic element is in itself a repair insert.
  • the thermoplastic element may be inserted in the board in any practical manner, it is currently preferable that the board comprises a bore and/or milled section in which the thermoplastic element can be inserted.
  • the bore and/or milled section may be a through-hole section such that an appropriate thermoplastic element may be inserted all the way through the through-hole section of the board, and further into a substructure such as a girder, and there bonded by means of the method described above.
  • thermoplastic element In order to further develop the bond after hardening has taken place, many methods are possible. It is currently preferable, however, to press the thermoplastic element in utilizing ultrasound. WO 98/42988 is again a reference for details in this method.
  • thermoplastic element is advantageously a bonding element.
  • thermoplastic element may be advantageously in the form of a dowel to attach the board to the girder.
  • the dowel comprises at least one step along its length, so that the described bond is supported, at at least one step, by a positive joint with a complementary step in the board and/or girder.
  • thermoplastic element may be a repair insert.
  • the thermoplastic element when a damaged section of the board is suitably milled, the thermoplastic element is inserted as a repair insert, and plasticized with, for example, ultrasound, so that the described bond is formed.
  • thermoplastic element has been designed to align with the surface of the board.
  • a continuously flat and smooth surface may be guaranteed without re-treatment, so that an equally smooth concrete surface may be formed in an advantageous manner.
  • thermoplastic element is in the form of a film, in other words, an extremely thin disk.
  • the thermoplastic element of this embodiment can be used to secure other elements in that it is, once again, supplied with energy such as ultrasound, and is bonded to the wood and/or synthetic material of the board and/or girder as well as to the material of the aforementioned other element.
  • thermoplastic element of this embodiment may be attached to a repair insert which is aligned with the surface of the board.
  • This attachment can, preferably concurrently with the attachment to the board, also be achieved with the plasticization and subsequent solidification described above. In this manner, minimal effort is necessary to achieve the above-mentioned advantages during repair of a formwork component.
  • FIG. 1 is a perspective exploded view of a first embodiment of the invention.
  • FIG. 2 is a perspective exploded view of a second embodiment of the invention.
  • FIG. 1 shows in a perspective exploded view a cutaway of a formwork component 10 which, in this case, comprises a girder 12 , a board 14 , and a thermoplastic element 16 .
  • the girder comprises in this case a base 18 and two braces 20 .
  • the shown girder 12 is just one example.
  • the shown girder 12 may be exchanged for any desired load-bearing or supporting member, which is to be attached to the board 14 .
  • Square timbers are just one example.
  • the board 14 comprises in the shown example a stepped through-hole 22 .
  • the brace 20 of the girder 12 is not pre-bored in the shown embodiment; however, it could be pre-bored.
  • the dowel 16 is largely cylindrical and comprises a first step 24 in the upper region which compliments the step in the bore 22 . An advantageous positive fit is achieved by overlaying the wide section of the step 24 on the step in the board 14 .
  • the dowel 16 comprises, in addition, a further step 26 on the end to be inserted in the brace 20 of the girder 12 , said step having an area 28 of a relatively small diameter formed on the free end. It is noted that the dowel 16 in FIG.
  • end of the dowel 16 which is to be inserted in the brace 20 of the girder 12 may comprise a plurality of steps and/or a pointed end to ease pressing into the brace 20 of the girder 12 .
  • the described bore 22 is machined into the board 14 , and the dowel 16 is then inserted through the bore 22 while being subjected to ultrasound so that it infiltrates the material of the brace 20 of the girder 12 .
  • the thermoplastic dowel 16 Due to the application of ultrasound, the thermoplastic dowel 16 is plasticized at least in part, so that material thereof infiltrates cavities and imperfections in the board and/or girder which may be made of wood and/or synthetic material, thus forming a bond after solidification therein.
  • the board 14 is secured to the girder 12 . This attachment can be formed on further points and/or with further girders.
  • FIG. 2 schematically shows a second embodiment in which the thermoplastic element is a repair insert 30 , which is inserted in a milled section 32 of the board 14 .
  • the milled section 32 or any indentation, is drilled or milled into the board 14 .
  • the form of the repair insert 30 is complimentary to the form of the milled section 32 , so that it ( 30 ) may be inserted therein ( 32 ).
  • the repair insert 30 is then, as described above, subjected to energy such as through ultrasound so that it is at least partially plasticized and its material infiltrates the wood or synthetic material of the board 14 , and then forms a bond therein after solidification.
US11/088,497 2004-03-26 2005-03-24 Formwork component Abandoned US20050210796A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014944A DE102004014944A1 (de) 2004-03-26 2004-03-26 Schalungsbauteil
DE102004014944.5 2004-03-26

Publications (1)

Publication Number Publication Date
US20050210796A1 true US20050210796A1 (en) 2005-09-29

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US11/088,497 Abandoned US20050210796A1 (en) 2004-03-26 2005-03-24 Formwork component

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US (1) US20050210796A1 (de)
EP (1) EP1580348A3 (de)
DE (1) DE102004014944A1 (de)
RU (1) RU2005108493A (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP2789769A1 (de) 2013-04-12 2014-10-15 ULMA C y E, S. COOP. Reparaturelement, angepasst um in einem Gehäuse einer Schalplatte fixiert zu werden, Reparatur-Methode einer Schalplatte und reparierte Schalplatte

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DE102006021193B3 (de) * 2006-05-06 2007-11-15 Peri Gmbh Niet- oder Schraubenkopf für Betonschalung
DE102011016120B4 (de) * 2011-04-05 2013-05-29 Redima Ag Schalhautbefestigung einer Schalhaut eines Betonschalelements
RU2637253C2 (ru) * 2015-03-25 2017-12-01 Ильдар Гаязович Кильдебаев Способ ремонта изделий из термопластичных материалов

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US5118454A (en) * 1991-05-02 1992-06-02 Davidson Textron Inc. Method for repairing voids in vinyl skin covered urethane foam products
US5437750A (en) * 1994-04-08 1995-08-01 Fokker Special Products B.V. Method for securing a thermoplastic insert
US5632923A (en) * 1994-04-28 1997-05-27 Hayakawa; Yoshiyuki Concrete molding form member
US6632863B2 (en) * 2001-10-25 2003-10-14 Crane Plastics Company Llc Cellulose/polyolefin composite pellet
US20040056172A1 (en) * 2000-12-12 2004-03-25 Ezio Sedran Modular elements for formworks
US6786989B2 (en) * 2000-05-26 2004-09-07 Woodwelding Ag Sealing
US6913666B1 (en) * 1997-03-21 2005-07-05 Woodwelding Ag Process for anchoring connecting elements in a material with pores or cavities and connecting elements therefor
US20060032172A1 (en) * 2002-10-18 2006-02-16 Foell David S Concrete fillable formwork wall
US7160405B2 (en) * 1999-06-18 2007-01-09 Woodwelding Ag Integral joining

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