E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
61/47
E21D 20/00 (2006.01) F16B 13/14 (2006.01)
Patent
CA 2014736
ABSTRACT OF THE DISCLOSURE Attachment elements to be fixed to panel-shaped structural components by a hardenable material including an axially elongated dowel sleeve with a passageway extending from a second end toward a first end. Apertures in the dowel sleeve open from the passageway to the exterior of the sleeve. An axially extending annular part encircles the dowel sleeve. A bag-like member is secured to the annular part and to the dowel sleeve adjacent the first ends thereof. The bag-like member is positioned so that it is located on an inner side of the structural component after the attachment element is inserted through a borehole in the structural component from an outer side thereof. The bag-like member can be filled with a hardenable material providing a gripping action with the inner side of the structural component. The bag-like member, when filled with the hardenable material, has a first side facing the inner side of the structural component and an oppositely facing second side. The bag-like member has openings in the first and second sides with the openings in the first side being larger than the openings in the second side. As a result, when hardenable material is injected into the bag-like member, it flows out through the openings in the first side and supports the bag-like member with large area contact with the inner side of the structural component. Therefore, high anchoring values are achieved with this larger area support.
Hoffman Armin
Leibhard Erich
Ludwig Wolfgang
Gierczak Eugene J. A.
Hoffman Armin
Leibhard Erich
Ludwig Wolfgang
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