DK146636B - ANCHORING BODY FOR USE IN LETBETON - Google Patents
ANCHORING BODY FOR USE IN LETBETON Download PDFInfo
- Publication number
- DK146636B DK146636B DK95679A DK95679A DK146636B DK 146636 B DK146636 B DK 146636B DK 95679 A DK95679 A DK 95679A DK 95679 A DK95679 A DK 95679A DK 146636 B DK146636 B DK 146636B
- Authority
- DK
- Denmark
- Prior art keywords
- tongue
- anchoring
- anchor
- screw
- lightweight concrete
- Prior art date
Links
- 238000004873 anchoring Methods 0.000 title description 27
- 238000005452 bending Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 210000005182 tip of the tongue Anatomy 0.000 description 1
- 230000007704 transition Effects 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
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
-
- 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
- F16B15/00—Nails; Staples
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Dowels (AREA)
Description
i 146636 i 5 Opfindelsen angår et forankringsorgan til anvendelse i letbeton.The invention relates to an anchoring device for use in lightweight concrete.
Hidtil er der ikke kendt nogen egnet forankringsdel til denne type af porøst materiale. Almindelige typer 10 af ekspansionsbolte danner ofte ikke en tilstrækkelig stærk forankring i letbeton. De er specielt udformede til at kunne klare store trækpåvirkninger, er komplicerede i deres opbygning og derfor dyre. Ved særlig store kraftpåvirkninger har man været tvunget til at 15 anbringe forankringsorganerne lige igennem letbetonelementet og forankre dem på bagsiden. Eftersom forankringsorganerne må være forholdsvis lange for at nå tværs gennem elementet, bliver de uhåndterlige og tillige dyre på grund af materialeforbruget ved frem-20 stillingen. Endvidere kan det i visse sammenhæng være ugunstigt at have udragende forankringsdele på begge sider af elementet.To date, no suitable anchoring member is known for this type of porous material. Ordinary types 10 of expansion bolts often do not form a sufficiently strong anchorage in lightweight concrete. They are specially designed to withstand large tensile influences, are complicated in their construction and therefore expensive. With particularly large forces of force, it has been forced to place the anchoring members straight through the lightweight concrete element and anchor them to the rear. Since the anchoring means must be relatively long to reach across the element, they become unmanageable and also expensive due to the material consumption of the fabric. Furthermore, in some contexts, it may be disadvantageous to have protruding anchor parts on both sides of the element.
At det er så svært at finde egnede forankringsorganer 25 til anvendelse i letbeton har bevirket, at man ofte, i stedet for letbeton, der jo har mange gode egenskaber, såsom ringe vægt og god varmeisoleringsevne, har valgt at anvende andre materialer med dårlige egenskaber.The fact that it is so difficult to find suitable anchors 25 for use in lightweight concrete has meant that, instead of lightweight concrete, which has many good properties, such as low weight and good heat insulation, it is often chosen to use other materials with poor properties.
30 I den foreliggende opfindelse er ovennævnte problem blevet elimineret og der er fremkommet et forankringsorgan, som er både billigt og pålideligt.In the present invention, the above problem has been eliminated and an anchoring device has been provided which is both inexpensive and reliable.
146636 2 1 Forankringsorganet ifølge opfindelsen er ejendommeligt ved en forankringsdel til islåning i letbetonen med en i hovedsagen rørformet del og som har forlængelse i form af en tunge, der er en smule krummet 5 eller skråtstille! og indrettet til at kunne bøjes til siden ved islåning af forankringsdelen i letbetonen, og af en forankringsskrue, der kan føres ind gennem den rørformede del og tværs gennem den bøjede tunge.The anchoring device according to the invention is characterized by an anchorage part for ice-laying in the lightweight concrete having a generally tubular part and having an extension in the form of a tongue slightly curved 5 or inclined! and adapted to bend to the side by locking the anchor member in the lightweight concrete, and by an anchor screw which can be inserted through the tubular member and transversely through the bent tongue.
1010
Herved opnås, at hvis forankringsdelen anbringes i et hul i letbetonen, og forankringsdelen herefter slås ind i letbetonen, vil tungen trænge ind i materialet og presses ud til siden. Dette sker på grund 15 af tungens krumning. Vinkelbøjningen af tungen vil ske i det område, hvori bøjningsmodstanden er mindst.Hereby it is obtained that if the anchoring part is placed in a hole in the lightweight concrete and the anchoring part is then struck into the lightweight concrete, the tongue will penetrate the material and be pressed out to the side. This occurs due to the 15 curvature of the tongue. The angular bending of the tongue will occur in the area in which the bending resistance is least.
Når forankringsskruen herefter iskrues, forhindres det, at forankringsorganet kan trækkes baglæns ud af hullet. Skruen forhindrer nemlig at tungen bøjes 20 tilbage til udgangsstillingen. Forankringsorganet ifølge opfindelsen giver således en hidtil ukendt god forankring i letbeton.When the anchor screw is then screwed in, it prevents the anchor member from being pulled back out of the hole. The screw prevents the tongue from bending back to its initial position. Thus, the anchoring means of the invention provides a novel good anchorage in lightweight concrete.
Ved, som omhandlet i krav 2, at tungen er udformet 25 med en ryg, opnås at tungens bøjningsmodstand i retning mod forankringsskruen øges, hvilket forhindrer at tungen rettes ud ved træk.As defined in claim 2, the tongue is formed with a back, the bending resistance of the tongue towards the anchoring screw is obtained, which prevents the tongue from being straightened by pulling.
Ved, som omhandlet i krav 3, at udforme forankrings-30 delen i eet stykke med udskæringer ved overgangen mellem den rørformede del og tungen opnås, at bøjningsmodstanden mindskes ud for udskæringen.As defined in claim 3, forming the anchoring member in one piece with cuts at the transition between the tubular part and the tongue, the bending resistance is reduced to the cutout.
3 1A 6 63 6 1 Opfindelsen vil i det følgende blive forklaret nærmere under henvisning til tegningen, hvor fig. 1-3 viser forankringsdelen til for-5 ankringsorganet ifølge opfindel sen i tre forskellige udførelsesformer, set fra siden, fig. 4 et snit i større skala langs li- 10 nien IV-IV i fig. 1, fig. 5 et til fremstilling af forank ringsdelen ifølge fig. 1-3 udstanset, plant emne, 15 fig. 6 en til forankringsorganet ifølge opfindelsen hørende forankringsskrue, 20 fig, 7-10 anskueliggør hvorledes en forank ringsdel ifølge fig. 1-3 føres ned i letbeton, og fig. 11 hvorledes forankringsskruen er 25 forbundet med den i letbetonen anbragte forankringsdel.The invention will now be explained in more detail with reference to the accompanying drawings, in which: FIG. 1-3 are side views of the anchor member of the anchor member of the invention in three different embodiments; 4 is an enlarged sectional view taken along line IV-IV of FIG. 1, FIG. 5 shows an anchoring part according to FIG. 1-3 punched, flat workpiece, 15 fig. 6 shows anchoring screw of the invention according to the invention, FIGS. 7-10 illustrate how an anchoring part according to FIG. 1-3 are laid down in lightweight concrete, and figs. 11 shows how the anchoring screw is connected to the anchoring part arranged in the lightweight concrete.
Den i fig. 1-4 viste forankringsdel 1 består af en i hovedsagen rørformet del 2 og en forlængelse til den-30 ne i form af en tunge 3. Denne er, som det fremgår af fig. 2, en smule krummet og har, se især fig. 3 og 4, en langsgående ryg 4, hvilken øger tungens modstand mod bøjning til siden, såsom det beskrives nær- 146636 4 1 mere i det følgende. Mellem den rørformede del 2 af tungen 3 er der en udskæring 5.The FIG. 1-4, anchoring part 1 consists of a generally tubular part 2 and an extension thereto in the form of a tongue 3. This is, as can be seen in FIG. 2, slightly curved and having, see in particular FIG. 3 and 4, a longitudinal back 4, which increases the tongue's resistance to lateral bending, as will be described in greater detail below. Between the tubular portion 2 of the tongue 3 there is a cutout 5.
Ved fremstilling af forankringsdelen ifølge fig. 1-5 4 udstanses af en plade det i fig. 5 viste emne 1’.In the manufacture of the anchoring part according to FIG. 1-5 4 are punched by a plate shown in FIG. 5, subject 1 '.
Dette emne slås fladt og bøjes derefter til dannelse af den i fig. 1-4 viste forankringsdel, hvorved delen 2' formes til et rør, og delen 3' danner tungen 10 3. I det plane emne er der tillige udformet udskæ ringer 5' · I fig. 6 vises en forankringsskrue 6, der går ind i forankringsdelen, og som i den ene ende har et ge-15 vindstykke 7 og en spids 8 og i den anden ende en gevindtap 9s der er beregnet til et skrueforbindelseselement .This blank is struck flat and then bent to form the one shown in FIG. 1-4, whereby the portion 2 'is formed into a pipe and the portion 3' forms the tongue 10 3. In the plane blank there are also cutouts 5 '. In FIG. 6, an anchor screw 6 is shown which goes into the anchor member and which has at one end a threaded piece 7 and a tip 8 and at the other end a threaded pin 9s intended for a screw connection element.
I det følgende vil det blive beskrevet nærmere, hvor-20 ledes forankringsorganet anbringes i en letbetonblok. Som det fremgår af fig. 7 bores først et hul 10, hvis diameter i nogen grad overstiger den ydre diameter af den rørformede del 2 af forankringsdelen 1, og hvis dybde i hovedsagen stemmer overens med 25 længden af denne del. Forankringsdelen slås ned i borehullet 10 ved hjælp af et slagværktøj 11. Når tungens 3 spids når hullets bund (fig. 8),-presses tungen ved fortsat islåning af forankringsdelen 1 på grund af dens krumning ud til siden i betonen. Som 30 det fremgår af fig. 9, sker vinkelbøjningen af tungen i området ved udskæringen 5S hvor bøjningsmodstanden er mindst.In the following, it will be further described how the anchoring member is placed in a lightweight concrete block. As shown in FIG. 7, a hole 10 is first drilled, the diameter of which exceeds to some extent the outer diameter of the tubular portion 2 of the anchoring portion 1, and whose depth generally corresponds to the length of this portion. The anchoring part is knocked down into the borehole 10 by means of a punching tool 11. When the tip of the tongue 3 reaches the bottom of the hole (Fig. 8), the tongue is pressed out by the ice anchoring part 1 due to its curvature to the side in the concrete. As can be seen from FIG. 9, the angular bending of the tongue occurs in the region of the cutout 5S where the bending resistance is the least.
146636 5 1 I fig. 10 vises forankringsdelen 1 slået helt ind i letbetonen. Tungen 3 udgør i denne stilling en i hovedsagen ret vinkel med den rørformede dels 2 længdeakse.In FIG. 10, the anchoring part 1 is shown turned fully into the lightweight concrete. The tongue 3 in this position constitutes a substantially right angle with the longitudinal axis of the tubular member 2.
55
Forankringsskruen 6 føres ind gennem den rørformede del 2, og ved hjælp af et skrueværktøj (ikke vist) skrues forankringsskruens spids 8 tværs gennem tungen ved 12. Ved fortsat nedskruning af forankringsskruen skrues gevindstykkerne 7 10 gennem det af spidsen 8 formede hul. I fig. 11 vises forankringsskruen 6 fastskruet i forankringsdelen 1. Forankringsskruens gevindstykker 7 er i indgreb med partiet omkring det gennem tungen 3 sig strækkende hul, hvorved der sikres en meget stærk forbindelse mellem forankringsdelen 1 og 15 forankringsskruen 6.The anchor screw 6 is inserted through the tubular portion 2 and, by means of a screw tool (not shown), the anchor screw tip 8 is threaded transversely through the tongue at 12. By continuing to unscrew the anchor bolt, the threaded pieces 7 10 are screwed through the hole formed by the tip 8. In FIG. 11, the anchor screw 6 is shown screwed into the anchor part 1. The threaded pieces 7 of the anchor screw engage the portion around the hole extending through the tongue 3, thereby ensuring a very strong connection between the anchor part 1 and the anchor screw 6.
På gevindtappen 9 (fig· 11) kan forskellige elementer 13 skrues fast ved hjælp af en møtrik 14.On the threaded pin 9 (Fig. 11), various elements 13 can be screwed in by means of a nut 14.
20 Ved optrædende trækkræfter i forankringsskruen 6 forsøger tungen 3 at bøje tilbage og derved følge samme bane som ved islåning af tungen. Forankringsskruen 6, der er i indgreb med tungen 3, hindrer imidlertid effektivt denne fra at blive bøjet omkring partiet midt for udskæringen 5· 2520 In the event of pulling forces in the anchor screw 6, the tongue 3 attempts to bend back and thereby follow the same path as when the tongue was iced. However, the anchoring screw 6, which engages the tongue 3, effectively prevents it from being bent around the portion in the middle of the cutout 5 · 25
Den øvrige del af tungen er, takket være udformningen af ryggen 4, temmelig ubøjelig, hvorved der sikres en særdeles god forankring af forankringsdelen i betonen.The other part of the tongue, thanks to the design of the back 4, is rather unstable, thus ensuring a very good anchoring of the anchoring part in the concrete.
3030
Forankringsdelens del 2 behøver ikke at være rørformet, men kan have andre tværsnit, f.eks. en tre- eller firekantet form.The anchor portion 2 does not have to be tubular but may have other cross sections, e.g. a triangular or square shape.
146636 6 1 Tungen 3 behøver heller ikke at have den viste form, men kan eksempelvis udgøres af et i forhold til delens 2 længdeakse skråtstillet plant parti.The tongue 3 also need not have the shape shown, but may, for example, be constituted by an inclined plane portion relative to the longitudinal axis of the part 2.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7802979A SE410757B (en) | 1978-03-15 | 1978-03-15 | FOOD CONCRETE IN LIGHT CONCRETE AND OTHER POROSA MATERIAL |
SE7802979 | 1978-03-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK95679A DK95679A (en) | 1979-09-16 |
DK146636B true DK146636B (en) | 1983-11-21 |
DK146636C DK146636C (en) | 1984-05-07 |
Family
ID=20334324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK95679A DK146636C (en) | 1978-03-15 | 1979-03-08 | ANCHORING BODY FOR USE IN LETBETON |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT365749B (en) |
BE (1) | BE874855A (en) |
DE (1) | DE2909919A1 (en) |
DK (1) | DK146636C (en) |
GB (1) | GB2022754B (en) |
SE (1) | SE410757B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990005246A1 (en) * | 1988-10-31 | 1990-05-17 | Rf-Konsult Ab | Concrete nail |
US6371706B1 (en) * | 1997-08-01 | 2002-04-16 | The Rawlplug Company Limited | Hammer-in expansion fastener |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4043247A (en) * | 1975-11-28 | 1977-08-23 | U.S. Engineering Company, Inc. | Wall fastener |
-
1978
- 1978-03-15 SE SE7802979A patent/SE410757B/en not_active IP Right Cessation
-
1979
- 1979-03-08 DK DK95679A patent/DK146636C/en not_active IP Right Cessation
- 1979-03-12 AT AT181279A patent/AT365749B/en not_active IP Right Cessation
- 1979-03-12 GB GB7908594A patent/GB2022754B/en not_active Expired
- 1979-03-14 DE DE19792909919 patent/DE2909919A1/en not_active Ceased
- 1979-03-15 BE BE2/57663A patent/BE874855A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK146636C (en) | 1984-05-07 |
DK95679A (en) | 1979-09-16 |
AT365749B (en) | 1982-02-10 |
SE7802979L (en) | 1979-09-16 |
DE2909919A1 (en) | 1979-09-27 |
BE874855A (en) | 1979-07-02 |
SE410757B (en) | 1979-10-29 |
ATA181279A (en) | 1981-06-15 |
GB2022754A (en) | 1979-12-19 |
GB2022754B (en) | 1982-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |