Dowels for securing objects to walls
OwnerHermann Kusterinventor
Life of this patent
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Abstract
A dowel for securing objects to construction elements, in particular gypsum plaster boards, has an expanding dowel body with an inner bore into which a fastening crew can be screwed. In an insertion front area, the dowel body is subdivided into at least two head segments buy a slot that starts at its front end. The dowel body also has a continuous necking in the front area of its outer surface. The dowel body further has at its rear end opposite its front end a stopping plate that extends transversely to the dowel longitudinal axis.
Claims15
A dowel for securing objects to a construction element, the dowel comprising:
- an expandable dowel body having an insertion front end, a rear end disposed opposite the front end, and an inner bore adapted for accepting a fastening screw;
- the front end being subdivided into at least two head segments by slots starting at the front end;
- the body in a front area proximate the front end having a tapered perimeter forming a continuous necking and the rear end of the body including a stopping plate disposed transversely to a dowel longitudinal axis;
- and the inner bore, in an area proximate the rear end of the body, includes a recess;
- and
- an insert having a female thread and being disposed within the recess.
A method for making a dowel with an inner bore, comprising the steps of:
- forming two halves of a dowel body, the two haves being divided in a direction parallel to a longitudinal axis of the dowel;
- providing in the dowel body a recess adapted to receive an insert having a female thread;
- inserting the insert into the first half;
- joining the second half with the first half;
- and
- wherein said joining step further comprises pushing a ring over the two halves.
Dependencies are inferred from the claim text.