DE1912637U - WALL DOWEL. - Google Patents

Description

RA. 066 992-9.2.65

A 1077
2 "12 _e i

Ύ - dl

Mr. Dieter Godlewski

Stuttgart-Weilimdorf,
Glemsgaustraße 70

Wall dowels 1

The invention "relates to a lilau aucel micl is based on those" known wall plugs with a sleeve-shaped insert piece that can be inserted into the Hauer opening, aas through a? cur holder dec on the lukewarm object to be fastened sohrauben member in the ^ -aueröffnuiig to widen \ νΔά clGclursb cu Tsrspann. With these LI also over 1 η ν / irdd? s Γ ■ i; .i ε; si; -. S '^:; U. - ^! - k at ü:

Screwing the Sehraubenglieaes "expanded only in a relatively small extent, causes the thereby induced stress of the insert but then not provide adequate support in the wall ₉ when larger Ztigkräfte ₅ d _o Ii" are effectively substantially axially directed forces "on the screw member ₀ For this reason, Up until now, if such forces had to be expected, one was “forced to refrain from fastening with dowels and to fasten the corresponding, particularly heavy load-bearing objects, such as brackets, to the wall with the help of stone screws

The invention is now to the task of such The permanent dowel should be improved so that it is also secure Guarantee the bracket if there are large tensile forces acting on its screw link "

This object is achieved according to the invention in that the screw member gelos't _s ISTJ formed by the insert penetrate Dess axially movable Bolsenstlick the zuir at its inner end a projection engaging in the insert head. Expand the insert and on its protruding from the insert ₉ with a

Threaded end piece for fastening the object carries a screw nut «, In this wall club e la, by tightening the nut, a longitudinal movement of the visual screw member within the insert piece ₉ cL h ₀ causes an adjustment of the head widening the insert» Compared to the "previous wall" diibels cause the insert to be tensioned many times more in the wall opening. "

In the case of the wall dowel according to the invention, the length of the screw member can be designed so that the head is located within the insert or only partially engages in it. The head canoe for example spherical, and the insert of suitable ^ compliant formed Torzugsweise elastically resilient plastic, or the latter may be made of metal _o In this case, results in an advantageous construction j when the sleeve-shaped Einsatastück at least two "head in the direction of Sehraubenglied extending , has axially parallel spreading fingers _f which interact with the corresponding mating surfaces with the head of the visual screw member «, With this construction of the insert it is advantageous« the ίίορί des

The screw link is wedge-shaped and tapers in the direction of the threaded end piece » subilden and the fork fingers with corresponding blessing surfaces to be provided ^ v ^ obei the head truncated cone «* or can be designed in the shape of a flat bowl * In the latter The case here is a wedge surface for each splay finger to arrange on the head »

In an expedient development of the invention proposes ^ "at the peripheral portion of the äußerfeB Spreiafinger provide ₉ by ribs corresponding grooves formed, the adhesiveness of the Einsatgstückes in the wall opening whereby still significantly favor läßto

"tfm that arranged in the wall opening ~ insert piece to the nut is tightened against Yerdrehen. sicherBg may eventually on which the nut facing end piece of the Einsatzstüekes a Plansch be molded ₉ dei ^v

For example, dui ^ ch notches formed _f the wall trimmed Yorsprünge aufi ⁵ / _s eist the check in the L'except surface dig _β

In the drawing are preferred embodiments It shown the invention shown

Figo 1 shows a longitudinal section through a first

_{Exemplary embodiment of a wall plug 5} according to the invention, the insert piece of which is made of plastic ₉

FIG _o 2 is a side view of a second

Embodiment of an inventive Mauerdubelsj its insert consists of itetall ^

_A 3 a look at that! Wall plugs as shown in Fig _o 2g turned Figure 90 degrees "

Figure 4 is a ^ _a ntersucht to the wall anchor according to FIG 3 and _e 4 =

iiit 10 is the plastic insert of the in Fig «. Wall anchor shown, 1 denotes _p the ■ at, its front end a flange 12 having "At the wall facing annular end surface facing said flange burrowing _s warts · =-like in the wall surface and spitae Vorspränge 14 for rotation of the insert in DER iaaueröffnung on _β

A screw member designated as a whole with 16 "is inserted in the sleeve-shaped insert piece. It has a curved piece 20 that is axially movable in a central recess 18 of the insert piece _§ at the end located in the insert _{piece has a head for widening the insert piece?} cL hu sum clamping = the same is formed in the control opening _s B. Each head is arranged in a corresponding enlarged part 24 äev recess 18 Das.aus the insert protruding end piece 26 of the bolt piece serves to accommodate the object to be attached to the wall * It is provided with an external thread on which a screw nut 28 is arranged for fastening the object together with a contact washer 30 _e When the nut 28 is tightened, the screw member 26 is adjusted relative to the insert Recess 24 existing ring shoulder 32 and widens, as indicated by dotted lines ^, the piece of ice cream from j or _a presses the same with its circumference against the wall of the chewing recesso

In the embodiment according to Pig, 2 to 4 is the metal Eissats piece marked 4-0 «preventive

produced, from ä'tahl ^ It includes an annular portion 42 "of which is 2wei _s Spreiafinger formed by a slot 44 46 and 48 parallel to the axis wegerstrecken.Ein as a whole with 50 designated screw member penetrates with clearance, the insert piece 40 and projects from The front end of the same out _Q On this part 52 provided with an external thread there is a clamping nut 54 together with a washer 56. An expanding head, designated as Ganaes with 58, is formed on the inner end of the viewing shaft. This Spreiakopf is designed as a flat wedge that tapers in the direction of the clamping nut _s of each Spreizfizsger a & eil ~ flat 60 or <62 hato v Each spreading fingers / eist a corresponding counter-surface 64 respectively ,, 65 _a are upon tightening of the clamping nut thus the spread apart in-the spreading fingers 46 uad 48 τοπ its free end, and the dowel tightened in the opening in the wall

On the outer circumferential part of the spreading fingers, finally, at a relatively small distance το -n each other ■ rags 68 are introduced ₅ whereby retaining ribs 70 are formedy which still favor the hold of the dowel in the Iviauero'ff2ius _{t 2 «}

Claims (1)

P.A.066992-9.2.65, .. 1. Wall dowels not sleeve-shaped that can be inserted into a wall opening Insert piece, thereby one to be introduced into this, for holding the object to be fastened to the wall serving screw member to widen in the wall opening and to be braced in this, characterized in, that the screw member through a. axially movable Bolaenstück is formed, which engages in the insert piece at its inner end Head for expanding the insert and on its protruding from the insert with an external thread provided end piece for fastening the object carries a screw nut. 2 »Wall dowel according to claim ¹ , characterized in that the head of the screw member is wedge-shaped and tapering in the direction of the threaded end piece and acts on corresponding joint surfaces of the sleeve-shaped insert piece * c, Idaiff dowel according to claim T or 2, characterized in that the hook-shaped insert has at least two axially parallel expanding fingers which extend in the direction of the screw link head and have the corresponding opposing surfaces _β Wall plug according to claim 3, characterized in which the spreading fingers at the outer circumferential part formed by corresponding ribs hats to V, ^T _e eiseii 5ο wall dowel according to one of the preceding claims characterized in that the sleeve-shaped Egg set piece has a puddle on its mother-zuekehrten end piece, which is with example wise wart-shaped formed by indentations Digs projections into the outer surface »