WO2012152237A1 - Verbundankerschraube - Google Patents
Verbundankerschraube Download PDFInfo
- Publication number
- WO2012152237A1 WO2012152237A1 PCT/DE2011/001062 DE2011001062W WO2012152237A1 WO 2012152237 A1 WO2012152237 A1 WO 2012152237A1 DE 2011001062 W DE2011001062 W DE 2011001062W WO 2012152237 A1 WO2012152237 A1 WO 2012152237A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thread
- anchor bolt
- composite anchor
- threads
- forming composite
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 57
- 238000004873 anchoring Methods 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 15
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 229920006332 epoxy adhesive Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 239000002969 artificial stone Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
- F16B13/141—Fixing plugs in holes by the use of settable material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0026—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a hard non-organic material, e.g. stone, concrete or drywall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0068—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw with multiple-threads, e.g. a double thread screws
Definitions
- the invention relates to a composite anchor bolt.
- Such a fastening arrangement or system of composite anchor bolt and adhesive is known, for example, from EP 0 955 476 B1 or EP 2 098 736 A1.
- the disclosure of EP 0 955 476 B1 or EP 2 098 736 A1 are hereby incorporated in the present application by reference in their entirety.
- the present invention seeks to provide an improved composite anchor bolt according to the preamble of claim 1.
- a composite anchor bolt according to the preamble of claim 1, characterized in that it comprises two or more, preferably three threaded bands of two or more, preferably two threads, which are formed parallel to each other and helically at least partially over the length of the shaft extend.
- Such a screw is particularly well suited to be materially anchored by adhesive as well as non-positive or positive fit by the inventive design of the composite anchor bolt in the anchoring ground.
- the at least two, preferably three thread bands form, in the screwed-in state of the composite anchor bolt in a borehole, virtually numerous chambers between the composite anchor bolt and the borehole wall. These quasi-free spaces are filled in case of use with hardenable mass.
- hardenable masses shrink.
- the fact that the curable composition is in the aforementioned chambers, the shrinkage of the curable composition has a smaller negative impact on the structural behavior of the composite anchor bolt according to the invention as in the known composite rob anchorage is the case.
- the threads located in a cross-sectional plane of the composite anchor bolt and engaging the borehole wall increase the effective area in the anchoring base, which is directly proportional to the structural behavior of the composite anchor bolt.
- the threads located in a cross-sectional plane of the composite anchor bolt and cutting into the borehole wall influence the structural behavior of the composite anchor bolt positively.
- each thread band has the same number of threads.
- threads of a threaded band may have a different size outer diameter. It may be useful for other specific applications, if the threads of several tapes have a different outer diameter. It may be appropriate for certain applications, if the threads of a threaded band have the same size outer diameter. It may be useful for other certain applications, if the threads of several or preferably all threaded bands have an equal outside diameter.
- each thread has a constant outer diameter over the length of the shaft.
- each thread is formed as a pointed thread with a flattened tip.
- flank angle may be useful for certain applications when the threads of a threaded band have a different size flank angle. It may be useful for other specific applications when the threads of multiple thread bands have a different sized flank angle. It may be useful for certain applications if the threads of a threaded band have an equal flank angle. It may be useful for other certain purposes if the threads of several or preferably all thread bands have an equal flank angle.
- thread tapes start evenly spaced from each other at a common circumferential line of the shank.
- a development of the invention provides that the threads of each threaded band have the same distance from each other.
- An advantageous embodiment of the invention provides that the outer diameter of the threads are dimensioned such that they dig when screwing at least partially into the wall of the hole and furrows.
- a further development provides that between at least two, preferably in each case between all thread tapes at least one notch in the shank is provided, preferably parallel to the tapes, interrupted or preferably uninterrupted, more preferably helical and most preferably at least partially over the length of the shank extends.
- the bond between the composite anchor bolt and borehole wall is increased in the anchoring reason, since the at least one notch, as it were, forms an additional undercut between the hardenable mass and shaft of the composite anchor bolt.
- overall the load bearing behavior of the composite anchor bolt is further positively influenced.
- the invention also relates to a fastening arrangement in an anchoring base, preferably made of concrete, with a thread-forming composite anchor bolt according to one of claims 1 to 12, wherein the composite anchor bolt is anchored in a filled with hardenable mass borehole in Veranker ground such that an annular gap between the borehole wall and the Composite anchor bolt is completely filled with the curable composition, wherein the threaded bands of the composite anchor bolt are preferably completely or partially embedded in the anchoring ground and partially in the hardenable mass.
- the special design of the composite anchor bolt ensures that the adhesive largely free of voids, ie without air pockets, distributed in the space between the wall of the bore and the screw.
- the hydropneumatic pressure occurring during screwing in of the composite anchor bolt within the bore is responsible, which in particular leads to the adhesive being pressed against the setting direction in the direction of the bore opening during further screwing in, with the adhesive, in particular because of the design of the composite anchor bolt , evenly distributed, and so a very good surface adhesion between the wall and adhesive on the one hand and between screw and adhesive on the other hand is ensured.
- the term "firm ground of anchoring" is broad. In addition to concrete, natural or artificial stone, rock, masonry or the like material is understood by a solid anchoring reason, for example, a friable masonry material, soft brick or other soft stone. Wood can also form a solid ground for anchoring. Preference is given to aerated concrete as a firm anchoring ground.
- the curable composition is mortar or a chemically curing adhesive, preferably a methyl methacrylate adhesive, a polyester adhesive or more preferably an epoxy adhesive.
- the distance between the borehole wall and the core diameter of the screwed-in shaft is 0.1 to 1 mm, preferably 0.3 to 1 mm, particularly preferably 0.7 to 1 mm.
- FIG. 1 shows a thread-forming composite anchor bolt a) according to the invention in side view
- the composite anchor bolt 10 shown in Fig. 1 has a frustoconical slightly tapered tip 18 at a front end of the screw and a screw head 14 at a rear end of the screw.
- the frusto-conically tapered tip 18 facilitates insertion of the composite anchor bolt 10 into the bore 12 of the anchoring base 13.
- the screw head 14 is formed in an exemplary tool engagement; This head shape is advantageous, but not mandatory.
- the composite anchor bolt 10 has three threaded bands 20, 22, 24, each with two threads 26 a, b, 28 a, b and 30 a, b, which are arranged parallel to one another and extend helically over the length of the shank 16.
- the threads 26a, b, 28a, b and 30a, b have the same outer diameter d, measured over the ridge 34, and the same flank angle ⁇ .
- the distance p between the threads 26a, b, 28a, b and 30a, b of a threaded band 20, 22, 24 is equal in all thread tapes 20, 22, 24.
- the threaded bands 20, 22, 24 are equally spaced from each other.
- the outer diameter d of the threads 26a, b, 28a. b and 30a, b are each larger than the inner diameter of the bore 12, so that when screwing the composite anchor bolt 10 into the bore 12 all threads 26a, b, 28a, b and 30a, b cut into the wall of the bore 12.
- an additional notch 36 in the shaft 16 is provided, which extends parallel to the threaded bands 20, 22, 24, continuous helical and over the length of the shaft 16.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2011/001062 WO2012152237A1 (de) | 2011-05-11 | 2011-05-11 | Verbundankerschraube |
DE112011105228.6T DE112011105228A5 (de) | 2011-05-11 | 2011-05-11 | Verbundankerschraube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2011/001062 WO2012152237A1 (de) | 2011-05-11 | 2011-05-11 | Verbundankerschraube |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012152237A1 true WO2012152237A1 (de) | 2012-11-15 |
Family
ID=44581859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/001062 WO2012152237A1 (de) | 2011-05-11 | 2011-05-11 | Verbundankerschraube |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112011105228A5 (de) |
WO (1) | WO2012152237A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2532553C1 (ru) * | 2013-08-05 | 2014-11-10 | Общество с ограниченной ответственностью "ПГМ-Городское Пространство" | Композитный анкер |
EP2789864B1 (de) | 2013-03-15 | 2016-09-14 | SG Holding UG | Schraube |
EP3578832A1 (de) * | 2018-06-07 | 2019-12-11 | Adolf Würth GmbH & Co. KG | Verfahren zum anordnen einer porenbetonschraube in porenbeton, verwendung und anordnung |
US20210033137A1 (en) * | 2018-01-18 | 2021-02-04 | Eurospacers Ab | Insulation screw and method for inserting such an insulation screw |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0955476A2 (de) * | 1998-05-08 | 1999-11-10 | Fischerwerke Arthur Fischer GmbH & Co. KG | Selbstschneidende Schraube zum Einsatz in Vollbaustoffen |
EP2098736A1 (de) | 2008-03-07 | 2009-09-09 | CCG-Concept Consulting GmbH | System aus Verbundankerschraube und Klebstoff |
EP2354567A1 (de) * | 2010-01-18 | 2011-08-10 | Harald Göttlich | Verbundankerschraube |
-
2011
- 2011-05-11 WO PCT/DE2011/001062 patent/WO2012152237A1/de active Application Filing
- 2011-05-11 DE DE112011105228.6T patent/DE112011105228A5/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0955476A2 (de) * | 1998-05-08 | 1999-11-10 | Fischerwerke Arthur Fischer GmbH & Co. KG | Selbstschneidende Schraube zum Einsatz in Vollbaustoffen |
EP0955476B1 (de) | 1998-05-08 | 2004-10-27 | Fischerwerke Arthur Fischer GmbH & Co. KG | Befestigungsanordnung mit einer selbstschneidenden Schraube zum Einsatz in Beton. |
EP2098736A1 (de) | 2008-03-07 | 2009-09-09 | CCG-Concept Consulting GmbH | System aus Verbundankerschraube und Klebstoff |
EP2354567A1 (de) * | 2010-01-18 | 2011-08-10 | Harald Göttlich | Verbundankerschraube |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2789864B1 (de) | 2013-03-15 | 2016-09-14 | SG Holding UG | Schraube |
RU2532553C1 (ru) * | 2013-08-05 | 2014-11-10 | Общество с ограниченной ответственностью "ПГМ-Городское Пространство" | Композитный анкер |
US20210033137A1 (en) * | 2018-01-18 | 2021-02-04 | Eurospacers Ab | Insulation screw and method for inserting such an insulation screw |
EP3578832A1 (de) * | 2018-06-07 | 2019-12-11 | Adolf Würth GmbH & Co. KG | Verfahren zum anordnen einer porenbetonschraube in porenbeton, verwendung und anordnung |
Also Published As
Publication number | Publication date |
---|---|
DE112011105228A5 (de) | 2014-04-10 |
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