DE2220422C - Fastening element for anchoring in parts of concrete structures - Google Patents

Description

1 sheet of drawings

Claims (1)

Fastening element for anchoring in one
Borehole consisting of concrete construction parts
from a fastening screw, one from p- ~ ^u
coiled reder as an expandable sleeve _{one through the fastening screw} into the Fe- J \ ° '^ bicoen. lateral displacement and the like a tv of the retractable expansion body, thereby against Au. > - _{TeU def spring} takes over s indicates that the turns (12) of the .o ^ .. S ₁ dl yerbun unhickable with one another. indicates, oau aie wiwuu ^ n. »; - - _{dj unvcrr} ucKPar miu-mu "- · as a block spring ^ wound spring (I) over a with du.r ^ h * _{guide of the} fastening from the rear end of the spring (13) emerges ^ ⁱⁿ ^ ^un | , _od , _and either only stretching section (14) of the spring (1) ^ Γ '"^^ concrete structure part or a by soldering. Brazing. Welding, gluing or drilling J- ■ _{h dc? to be} determined _lg end construction; Crimping immovably connected to one another «. > s f ^sd . ^tZ , ''" _{n Fal} | _a Ko with the so-called Du -d ^P ^ _ck moma "e can use it on an additional punching sleeve omittediv_ ^ ^ ^ by Han !. ν ÄÄ .n ^ change you ₂ o can through I oiui. ^ i ^^ ^ ^ ^^ _imperative _. The invention relates to a fastening element herbeigtj " ^π ^ Λ _windunfien over their ga: for anchoring in a borehole of concrete or dt rl ¹ ^. 'J are _wrbunden . It is sufficient hd fastening * ^^""h' d bit for anchoring in a B j are _wrapped gg building parts, consisting of "a fortification * - ^^" "h. '^^ forp ,,,, - connection already to screw, a spring wound from wire as ^open- ° ^%. ^ y "... _{k / u} reach, weitbare sleeve and one by the mounting "5 ^to Sp · ^ ^l \"_'l.]: nn _{ka SLCN} already screw a Verp retractable into the spring spreader, ^ s "e ° w.ndun encinander sufficient ■ The advantage of this fastening element is sen du v-iru .. ^ ^, ^ _{by an} n radial in that the spring, as an expandable sleeve, attaches itself to the "f '" ^K _ei " _irkl ." j _en r.tcmpel against an inner M, Wandune of Lohr hole matches that is known to the outside η l _rk; ία.π ^ J ^ ^ ₅ ^ _{n Windur} not completely cylindrical -md ac \ s-precise. Dadurcn 30 P ^e ^ | _ä ^ _ioTm , "medals for the ben, is. without the expansion body m the spring being drawn in. Vo ^s P ™ ⁿ tJ ^ -t _ß , i _{! e} n. from which it> gen v, .ire. there is already a tension that can be deformed ^ "^ '" _{n ckt} . enough, that the fastening element when N & N hch n.cht MCHR Vern ^^ _insbeS0 ther di itself; -More taking place retraction of the expanding flour ls 1 st AOTR _Vcrbin dung herbcizuführ can rotate in the borehole. Due to the bracing 35 P ^unktsc . ^h _r ^ " ^J j" Raised fan interior a sch ,. but the spring in the borehole also becomes tense _. already the windings lying around the expansion body. ung ^ ^ ^ . ^ gen with this, so that this will also bind with E.ndre- ^ "^, t,". The thin BIc _{If the fastening screw is no longer with it, see the} «« * ^ "the ^ ^. introduced ßefc. An advantage arises from the Fc- * ° ^ screw ^^ the, ine even distribution of the contact pressure, andung ^^ ÄÄhrungsbeispid dedi Adhung the spring in the drilling der, ine even distribution of the Anpr ^^ ÄÄhrungsbeispid de over the entire extension of the spring in the Bohr- In der aicnni «^ hole. As a result, no notch effect more in the ^E ^ ^ndun 8 ^d _n ^a ^ '_"m .. _ISSE fastener bc Depth of the borehole, which lead to the furrowed 45 Das Invention ^ g-rnaUc bci " _B ^ could lead to eruption cones. Schliessl.ch is made of em.rn wire η _{expansion body} . Is there a production-wise significant association a- aer wound?; ^cde : I _{ ^u ™ _u ^ ^r _{s screw} 3 ^P through by the fact that the sleeve by simple Wk- per 2 J ' ⁿ _n ^ ⁿ "f ^ Sffi in the conical keln a spring can be produced. Working screwing. ^d "Be ^f t ^s tigungsscnr courses such as attaching an inner cone or Emfra- ₅ "see Sprazkorp ^ 2 ^ this will be r""1 _dcr sen of slots, as they are drawn with the known metal. Here aie _{d of the ßohr] o} . fastening elements are necessary, omitted. ™ γ ™ & ™ «£? $ £ ^ ϊ Ji * tcrncr *« However, _E FHAT in experiments _m i 'this loading his Emfülvr ^ defeiner, ^^ "J. Shown ^ fixing element that requires .t 55 AuBendurchj, ss ^ r the; ^ «« hmesg ^ _{d £ n} rückwärt.gen spring at its end by a waste ches 11 en pncht ue wi B extending cover cap, of which a part in the spring see cn from the mckwairtigen he their _welding) intervenes and another part of the St.rnende of Fe T "Jbschn, tt ^ J" ^ "^^ _'mite inander _D iSndun _{g is} based on the task of _fc ^^^ S ^ Ä-SyuÄSS Fastening element described at the beginning so to «P ^ JL ^ S ^ S? he follows. De ^ himself from improve that on a ^ ^B ^ / ^ ^kk "Pj * Sl £ n fSSS" «stretching section4 can be dispensed with without ^{the immovable connection through their ™ ckw} _o ^a "&, ^ nrch