Hilti Aktiengesellschaft

Forster Küchen- & Kühltechnik Ag

Hans Oechsle

Karl E Udert

Helmut Vollmer

Heinz Pfeiffer

An expansion dowel consists of an axially extending sleeve slotted for a part of its length and an axially extending expansion body insertable into and displaceable through the bore in the sleeve for radially expanding the sleeve. The expansion body has at least one axially extending recess in its outer surface so that the expansion body can deform along the recess after a certain expanding force has been achieved. Further, an axially extending bore can be formed through the expansion body with the recess opening into the bore.

Expansion dowel

An expansion dowel consists of an axially elongated sleeve having a bore therethrough with an expansion body being displaceable through the bore for expanding at least an axially extending part of the sleeve. The expansion body has an annular shaped constriction in its rear portion so that the expansion body can be deformed in the region of the constriction after the expanding forces have reached a certain value.

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Nenzing, Austria

Hans Oechsle