DE6603805U - DOWELS FOR FASTENING OBJECTS IN BUILDING MATERIAL - Google Patents

Description

PA.109 294-2.i65

Li: υ el zur ^ eie ^ ui ^ 'uix, of
Jc ^ enstün, en in ^ uustol un

Lie jirfindung concerns a dowel for the vibration-proof jjjui.jeii of Grejenstünden in building materials, especially in soft to ^ it ^ al-hard types of wood and pressed boards jcrir ^ -r thick "-, especially in blind holes of less length nit: inen nit internal thread to accommodate the retaining hood z jr.den

There are dowels bekazurt whose multiple slotted dowel body_r extending inward as spreading claws hook-shaped euchreoz._ z. -te Tc2-le nxt i.iiiieiig © wxiidö aufvvöiseiij where the conical najh inside running claws with the ijL you. chaesser tapered turns of the internal thread GUJTCii ^ be priced insciirauoeji the Ealteschraube suicsen "Such anchors have the disadvantage that the iaalteschraube during screwing, thus taking place _Ä ufspreiaen the nalteklauen to be overcome by the tapered female thread a übersäSig large resistance has j whereby the Ge ^ ö-nde is damaged and moreover

1 U ^ 3l.: I-i *: rs

erbogen ^ e.-: r.,

^ _ ,. _i veil

., lull.!; eö .i ^ noüc: ^ often rob unaoVliGli .viru ..

^ r ^ rfinaui ^: Iiu _t .; t uio task is based on -jinon Lübcl to joiiaifen, even with shallow Böhrlocntiefe XL · extremely hard types of wood or pressed boards with large forces acting on the dowel finds a firm, vibration-free hold in which the thread is not damaged during the expansion process i.

Wira solved the problem in that a cylindrical collar sleeve enföriaiger Dübelköx-per at his, facing the end of the blind hole 3 side of its cylindrical walls, which can be expanded radially by means of an expanding mandrel through conical sliding surfaces has outwardly angled, knife-edge ex-shape CaseiL. Further features of the subject matter of the invention can be seen from the subclaims 2 to 10 below.

According to the invention the bundhülsenföriaige cylindrical Xiu J- 5ΘΤτK "body HAT ScXnen raulSi OIS SU uJLc 13OSJrLoCxLwSSUiHI reaching Sing collar and lugs inserted flush into the borehole, the expansion mandrel expands as nr by screwing the Ealteschraube the segments with the off to the outside;!... Vinkelten s

these in aas umgeüenae iJa'cenaj. nineir ..

Compared to the bi-l..r υ .- .. ·; - ..:; ^ _Λ ..- orders, the advantage that the 1U ~ <-1 i_: j-cIjtUc. ". ·.

_t irin ^ or iiefe, for example beiia ^ nbriii _& en of irtlger- *; constructions also, to oucllen on which he is not through ham-

cn V / er_en may find a firm rialt If the dowel can also be expanded into solid materials, since the force applied by the expanding Force component of the expanding mandrel on the anchor body at the Place where the retaining lugs are located, so that the sleeve-shaped segments of the dowel body do not bend can be stressed and the internal thread of the anchor body cannot be damaged. Another advantage lies in the fact that the axially parallel threads of the internal thread are caused by the expanding process of the expanding mandrel do not have to be deformed and the expanding mandrel therefore without additional Resistance can be easily screwed in during the spreading process.

Then the mode of operation of the expansion process of the dowel according to the invention is illustrated with reference to two in the drawing illustrated embodiments explained in more detail.

Ss shows:

5 ¹ Ig.Ί the dowel partly in side view, partly in section rig.ü the expanding mandrel of the shown in Pig.1 j. ν L "~ .. _'..-. 1ε

partly in Jei ueiiaiiSiciit, partly i_i ^ - -.1, '.- x "ig. 5 the dowel in plan view in Rici-üUi- ..".; __. il-ji n;: ch Fig.1

Another embodiment example dt; ^ _'.-. o_s Side view, partly in section

Fig. 5 shows the expanding mandrel of the evil according to j. ⁱ 'ig.4 partly in side view, partly in section

6 shows the dowel in a plan view in the direction of the arrow according to FIG

7 shows a longitudinal section through the dowel with a retaining screw in the expanded state anchored in the borehole.

The anchor consists _y as shown in Fig. 1 to 5 can be seen is substantially of three parts, from the anchor body 11, the expanding mandrel 15 and the not shown, engaging in the internal thread of the retaining screw Spreisdornes. Her dowel body 11, which can be made of metal or plastic, essentially has a cylindrical shape. On the side facing the borehole opening there is an annular collar 19 projecting in the radial direction and at the other end an angled blade-shaped lug 15 projecting radially just as much. Immediately below the annular collar 19 is an annular groove 14. On the circumference of the annular collar 19, a knurling 22 provided with axial grooves can be arranged to prevent the dowel body from rotating when the shearpin or the retaining screw is screwed in. The body of the dowel is inserted into a blind hole as large as that of the protrusion. ■: .- ...: l ...;

bundes 19 introduced, with Verv ... ----- ^ .1 .. ^ r _-_ l ~ „ _e _;

Outer circumference of the collar 19 _{S of} the L .. ^. »!. ^^ .. ^ ·« - ·: ..tr u ^.

a little big is so that the lübel .- ^ i. er ::. Lz -ie .: he can be driven into the bore hi ^. Lei- .- "..... -:. ^ -, .ie: dasu, the thrust forces directly on the - ^ 3 c.rl:;.; u ^ ce-e ^ ie material su transferred. The depth of the .o ^ r ^ o: re; - ^. j.er

; .- "it ..ir

Corresponding to the total height of the anchor body.

Inside the dowel body '.1 is a' part of the "Before the dowel body running inner revinde is arranged. I '! Is located directly below the end of the thread inner annular groove 2 p and below this an inwardly directed ring sector-shaped projection 24 · with conical sliding surface 15o

The cylindrical dowel body is from the end of the blind hole facing side by four bits to the ,, ii-bund 19 reio.-end slots 20 divided into four segments 12.

The dowel is inserted in the borehole as follows: ... aciid the dowel body 1 is inserted into the ear hole, ... an expanding mandrel 15 is inserted into the internal thread 25 of the Ii '^ - j- *. ör ~ ors screwed in until it meets with its conical -leitfläche 1c on the annular sector-shaped projection 24-. .. '! - .. "ctand su overcome, through which the thread- ^ - ..: ._. L .sch -l <_ "t v.orden I"'Junten, r-eirs. screw in rider ..iri ai.r ri; .jjektorföririge projection 24 oiEh Iz. by dio

:. .. ..; vor3chv; .AC ^ -cn ^ u ^ rschiJ-tt bending with; the snow «·. ..IJ .. ^ i _, ^. I .. ^ "w 1; «Citlich in the borehole wall of the um - (.; -.: ..! ■. ■ .. ... ^. O -j. Lulv- Liii'wlngepreit, whereby the dowel body in the

gi ^ uit '/ on cer x.Ux'te les ma ^ ebenden i.-iaterials can ei <_; unjj; ^> viru; el aer koiiiöoatn sliding surface 18 and 16 ver

j ocuieuon ^ ro ^ i cein. into the internal thread 17 of the expanding mandrel 15

becomes the retaining screw, not shown in the drawing screwed in. The expanding mandrel ip can, however, also be removed because the anchor body is already firmly anchored in the borehole after expansion, and a second retaining screw can be used directly into the internal thread 2; be screwed in.

In Figs. 4 to 7 is a. further execution is shown. Here, too, the dowel consists of three parts, the dowel body 1, the expanding mandrel 5 and the locking screw 24. The dowel body 1 again has an essentially cylindrical shape At the end of the wall there are two hooking noses ^T j and 21. An annular groove 4 is located below the annular collar 9. The cylindrical dowel body is divided into four segments 2 by four slots 10 on the side facing the end of the blind hole. An expanding mandrel 5 with a cylindrical upper part and a lower part provided with conical sliding surfaces 6 is inserted into the inner borehole from the side facing the blind hole and is pulled into the dowel hole by the screw engaging in its internal thread 7 until the expanding mandrel 5 by means of a conical -lc ^ Curses against each other the beveled sliding surface 3 of the linear segments 2 with their snow for..J_ ^ en Jc.sen J uni ._ "· presses unc -iece when screwing in aas u ^ e ^ end ... aterial iiinci: _ <+ e ~ it, here the segments 2 bend around the weakening points on the annular grooves 4.

Claims (1)

tr — tr — ö — e nr uL.:.üpi.u;::t '! <, Dowel for! ^ u-Uulsickeren iefesöi ^ en ve: J- .. £ _: ■ _ .. ze! '. ::., er. i ^ custox'f «n, i.'icürGC. '. c-rt; in v.'sic-en ^ i; z ± iz \ .ci records that a cylindrical dowel body (1,11) on its side facing the end of the blind hole through an expanding mandrel (5 »15) through conical sliding surfaces (ö, o; 16,15 ) on expandable cylindrical ', vanding radial ne.ch outer: has angled snow-like noses (5 ₅ '. £ .. Dowel according to claim 1, characterized gekenaseicrjaet that the dowel body (1,11) and the expanding mandrel 5-15) made of plastic or from ^ metal or the dowel body (1,11) made of plastic and. the expanding mandrel (5> 15) - ^. s Lletall becteLt. y, dü ^ el nuc; Ar.j.vuch 1 od ^ r 2, thereby o & kc - :: iZL'icknet, de.ß aie zylirj ^ ricc.e '.,' Ai-aunj of the dowel body ('', H) through -ich- r.enz -is _ "-:.: ^ .1. > u :: u. (9,1 ^) round slots (10, ^ 0) in Sclent ο aui '^ et eil ^ is. <-) -. Dowel naji: ei:.:.:, Dr preceding claims, thereby j · -; t, last the expanding mandrel (5 _} ¹ ^ i) -i ^ - üo held: - :. t be Lufr ..: _ er.ces internal thread (7,17) ¹ ^ ⁸ ^ ^{1 on} its inner ^ nde coriöche 5 'surfaces (6,16). ;>. Dowel Xi-C-ZSi one of the preceding approaches τ: r Li ehe, thereby ger: er_: zei2 ^ _net _} that the r-orisch-en surface ri. (ό, ΐό) With this, depending on the hardness of the cuagcbenden material, -i.- v -.r3chieden stari: appropriate angle are formed. ■ j. _uee_ after a front cr ^ enenaen Anopruci ^ e, daaurcn ~ e-I: draws in that the dowel body on the dsm Sackioeheaae facing side has conical surfaces (£, 15). The previously * 7. Dowel according to one - "öl'jjÄ bundhülseaförmige cylindrical dowel body (1,11) nenc en claims, characterized in that below the - (19?) With an annular groove ingbundes - configured!. (+, 14 ·) is. 8. Dowel according to one of the preceding claims, characterized in that dui the dowel body on the outside of his zylincricchen 7 / andung has a second iiase (21) « 9 »Dowel according to one of the preceding claims, characterized in that the dowel head with the annular collar (v, 19) and the rabbit (i, ^ 1,15) "until sn the 13ohrlocL; vj:. ^ unj comes up. 1Oo dowel me ei ^^ m of the preceding claims, characterized g- ~ keiaiaeicliiiet, c ^ j u.er iiiagbund (9 ₅ 19) "^ i outer 'Jmfcng Uli --- (ZZ) on k J C J. O Oe