DE1985170U - FASTENING PLUG. - Google Patents

Description

KA.71 /ϋ/527.2.

PATENTANWÄLTE DipUng. MARTIN LICHT

Dr. REINHOLD SCHMIDT

Patent attorney Dr. R. SCHMIDT, 7603 OPPENAU, P.O. Box 25

_ Dipl.-Wirtsch.-Ing. AXEL HANSMANN

Dipl-Phys. SEBASTIAN HERRMANN

Έ 36 893 / 47a & bm o _PP enau, February 23, 1968

Siegfried Waltersbacher, Memzeichen: 3985

7593 Ottenhöfen / Black Forest _ Sch / E

L J

ilisswsiss Diase document (description and protection claim) is the last one submitted; it differs from the wording of the originally justified documents, the legal B-jdsufwng of the deviation has not been checked. The original “MngereWiten” sub-logon can be found in öan Anitsui: ifjn. They can be viewed free of charge without proof of legal InUv ₃ : ^ s. Upon request, photocopies or film can also be sent to the usual Pfejsatt.oelläfert. ^. ^. ^ .-. ^. Ajiv ^ .n German Patent Office, Utility Model Office

The object of the fire is a fastening dowel to be inserted into a Bubellooh in the wall, in the ceiling or the like, to be attached to a stand that is to be mounted on the wall or the like. Q-item of an earlier patent Ir. 1 245 222 by the applicant is a specific insertion into a wall diagonal, consisting of a sawtooth-shaped radial ribs that are closed on its circumference and run around the lateral surface and only open at their ends with an essentially uniform, slightly conically tapered interior space for accommodating a to be driven in with external toothing provided retaining bolt for the object to be fastened. By the rings closed 3? Orm of the plastic sleeve of existing in prior art anchors with slotted sleeve deficiency is avoided that a spreading of the sleeve takes place only in some preferred sightings because z _e this avoids example during driving of the retaining bolt to the side and then only A one-sided expansion of the sleeve with poor anchoring in the masonry is achieved. And by being uniformly conical along its entire length

Dr. REINHOLD SCHMIDT, 7603 OPPENAU, Postfach 25, Allmendplate 4, Telephone: (07804) 710

Bank details: Renchtalbank (Volksbank) Oppenau Account no. 648 / Bankhaus Paul Kapff, Stuttgart Account No. 2644 / Postal check account: Karlsruhe No. 65015

Munich office: Patent Attorneys LICHT, HANSMANN, HERRMANN

tapered interior of the plastic sleeve ensures that the holding force of the sleeve, which is expanded evenly over the entire circumference by the driven bolt, is primarily itself at the points sunk deepest in the wall dowel hole, so that there is no danger of the mouth opening at the Yifand "exists.

The aim of the hiring is to preserve such a dowel the progressive properties described can be improved by the fact that the number of necessary for the dowel fastening ! haste is reduced and the installation of the anchor is simplified and accelerated »In particular, the firing a dowel to be produced in cheap mass production can be created for simple, quick and secure fixings, in which the 6-object to be assembled is simply inserted and at most occasionally by additionally turning a screw-like fastener slightly in the dowel sleeve made of plastic, as it corresponds to that of the main patent, is attached without seeing the sleeve turns.

For this purpose, the arrangement is made so that the retaining bolt as a so-called "Hagelsehraube" with a cylindrical External thread is formed and on its shaft directly

bar the holding organs for the object to be attached in the form a screw head, external thread, hook or eye ring wearing. This simple two-part construction of the fastening dowel is suitable for cheap mass production is particularly simple, but at the same time just as reliable as with the dowel according to the main patent · Just like there, the new bolt to be driven in with its saw-like Thread the dowel sleeve over its entire length and over its entire circumference from all directions, radially spread or elastic widened, whereby a more secure anchoring in the masonry is achieved. An internal toothing of the sleeve is not required more. When the bolt is designed with a screw head, the bolt can lay in completely or only over a certain length and then screw in the remaining length. The sleeve is pressed into the masonry when the bolt is driven in, that they no longer see when the screw is turned further twisted.

Some embodiments of the control are shown in the schematic Drawing shown. It shows a dowel sleeve on the left in a longitudinal section and used in masonry with hammered-in screw bolts. There are also different versions of this bolt shown with external thread, with eyelet, with hook and with screw head.

The unslotted one to be inserted into a drilled Iooh in the masonry Plastic sleeve d contains a conical bore e of round Cross-section. The sleeve is rounded at the front "at a and with a circumferential outer teeth c and reinforcing ribs f provided «, A correspondingly round bolt can now be inserted into this plastic sleeve d made of metal or plastic and screwed in as required, which can also be rounded at the front at g and has circumferential, thread-like external teeth ρ within a cylindrical overall profile »When the bolt is hammered in is safe thanks to the closed shape of the sleeve central guidance for the bolt ensured, and the bolt can not move to the side, so that the required holding force is always achieved. The sleeve is from the start to the end and over the entire circumference pressed radially into the masonry and thereby also clamps the bolt on the entire Length of the sleeve, the teeth ρ of the bolt being pressed into the elastic plastic sleeve.

The conical bore in the sleeve, as in the previously described embodiments of the dowel sleeve according to the older patent has the advantage that the stronger clamping effect or »pressure is laid in the course of the masonry and at the beginning the sleeve flakes or heats up due to the weaker elongation the wall surface prevented and still a solid and safe

Leadership at the beginning of the sleeve is reached »Between the screw- = head and the wall containing the furniture hole is the one to be attached Object held securely «,

In the embodiments of the bolt with the external thread o _s, the hook s or the eyelet r, just as in the case of the bolt with the screw head t, the major advantage is that these bolts with cylindrical external threads are designed as "lagelsehrauben" bolts by simply knocking them into the plastic sleeve mounted and can be easily dismantled again if necessary.

Sohutzans pruehg

Claims (1)

PATENT LAWYERS Dipl.-Ing. MARTI N LI CHT Dr. REINHOLD SCHMIDT Patent attorney Dr. R. SCHMIDT, 7603 OPPENAU, P.O. Box 25 - __. Dipl.-Wirtsch.-Ing. AXEL HANSMANN Dipl-Phys. SEBASTIAN HERRMANN W 36 893 / 47a G-bm o _PP enau, February 23, 1968 Siegfried ffaltersbaeher, My reference: 3985 7593 Ottenhöfen / Sehwarzwald, _L j Dr.Sch / E Claim to protection Fastening dowels for sitting in a wall bracket hole, consisting of a sawtooth-shaped radial ribs that are closed around the circumference and are only open at their ends and have a plastic sleeve that is open only at their ends and has a substantially uniform, slightly conically tapered interior to accommodate a retaining bolt that is to be hammered in and provided with external toothing for the object to be "fastened, characterized in that the retaining bolt is designed as a so-called" lag screw "with a cylindrical external thread (p) and the holding elements for the object to be fastened directly on its shaft in the form of a screw head (t), external thread (0) , Hook (s) or eyelet ring (r). Dr. REINHOLD SCHMIDT, 7603 OPPENAU, PO Box 25, Allmendplatz 4, Telephone: (07804) 710 Bank details: Renchtalbank (Volksbank) Oppenau Account no. 648 / Bankhaus Paul Kapff, Stuttgart Account No. 2644 / Postal check account: Karlsruhe No. 65015 Munich office: Patent Attorneys LICHT, HANSMANN, HERRMANN