公开(公告)号：WO1994019175A1

公开(公告)日：1994-09-01

申请号：PCT/DE1994000185

申请日：1994-02-17

Applicant: GERMINA SPORT-EQUIPMENT GMBH ,  BRENN, Thomas ,  DANZ, Wolfgang ,  VON SCHWEINICHEN, Michael, H.

Inventor： GERMINA SPORT-EQUIPMENT GMBH

IPC: B29C67/14

CPC classification number: B29C70/78 ,  A63C5/00 ,  A63C5/07 ,  A63C5/12 ,  B29C70/446

Abstract: In prior art hollow skis the raw material is arranged in a mould in such a way that it surrounds an elastic air chamber which is pressurised, whereafter the material is cured. The process of the invention is intended to provide a hollow ski of low weight and high rigidity. To this end the air chamber takes the form of two sections of a double hose (6, 7) side-by-side in the longitudinal direction of the ski. In each section of the double chamber a fibre-fabric outer hose (7) is pushed over an airtight, thin-walled and expandable plastic inner chamber (6) and, after impregnation with a synthetic resin, it is inflated through the inner hose and pressed against the running surface and against the fibre-fabric material forming the outer layer of the hollow body which is also impregnated with synthetic resin so that a vertical ridge (8) is formed along the hollow ski. The components are firmly bonded together by curing and form the ridig bond of the hollow ski.