公开(公告)号：DE4426778A1

公开(公告)日：1995-08-31

申请号：DE4426778

申请日：1994-07-28

Applicant: WILSON SPORTING GOODS

Inventor： BRITTINGHAM DAVID L ,  REPETTO DAVID W ,  POLLOCK DAVID A

IPC: A63B49/10 ,  B29C53/58 ,  B29C70/16 ,  B29C70/20 ,  B29C70/44 ,  B29D99/00 ,  B29K101/12 ,  B29K201/00 ,  B29L31/52 ,  A63B49/02 ,  B29D31/00 ,  B29C70/48 ,  B29C53/60

Abstract: The frame is made by first preparing fibres (34) of reinforcing material (35) with a matrix in thermoplastic material. The fibres are then rolled in spirals on a long chuck, to form a tube. The tube is removed from the tube and placed in a mould which has the shape of the frame. The mould is heated to a temperature at which the material of the tube fuses. The interior of the mould is also put under pressure. The mould is cooled and the frame is removed from it.

公开(公告)号：FR2716377B1

公开(公告)日：1999-11-12

申请号：FR9411327

申请日：1994-09-22

Applicant: WILSON SPORTING GOODS

Inventor： BRITTINGHAM DAVID L ,  REPETTO DAVID W ,  POLLOCK DAVID A

IPC: A63B49/10 ,  B29C53/58 ,  B29C70/16 ,  B29C70/20 ,  B29C70/44 ,  B29D99/00 ,  B29K101/12 ,  B29K201/00 ,  B29L31/52 ,  A63B49/02

Abstract: A frame for a game racquet such as a tennis racquet is formed by helically winding a tow of filament material and thermoplastic material over an elongated mandrel to form a tube. The tube is positioned in a mold having the shape of a game racquet frame and auxiliary pieces for handle and yoke sections are added. This preform is heated to melt the thermoplastic while the interior of the tube is pressurized. The preform is then allowed to cool and harden to form the game racquet frame.

公开(公告)号：FR2716377A1

公开(公告)日：1995-08-25

申请号：FR9411327

申请日：1994-09-22

Applicant: WILSON SPORTING GOODS

Inventor： BRITTINGHAM DAVID L ,  REPETTO DAVID W ,  POLLOCK DAVID A

IPC: A63B49/10 ,  B29C53/58 ,  B29C70/16 ,  B29C70/20 ,  B29C70/44 ,  B29D99/00 ,  B29K101/12 ,  B29K201/00 ,  B29L31/52 ,  A63B49/02

Abstract: A frame for a game racquet such as a tennis racquet is formed by helically winding a tow of filament material and thermoplastic material over an elongated mandrel to form a tube. The tube is positioned in a mold having the shape of a game racquet frame and auxiliary pieces for handle and yoke sections are added. This preform is heated to melt the thermoplastic while the interior of the tube is pressurized. The preform is then allowed to cool and harden to form the game racquet frame.