Method of making games racket frame

Details Method of making games racket frame Method of making games racket frame

B - Operations, Transporting

29

C

26/204

B29C 45/44 (2006.01) A63B 49/10 (2006.01) B29C 33/52 (2006.01)

Patent

CA 1146346

ABSTRACT METHOD OF MAKING GAMES RACKET FRAMES A method of making a games racket frame by injecting thermoplastics material into the space (13) between a fusible core (14) and a mould (11,12) at a temperature above the melting point of the core. The core (14) is shaped to have locating lugs (15) to abut against the internal walls of the mould (11,12) and hold the core in the desired position. The moulding is allowed to set and the core then melted out by raising the temperature sufficiently for that purpose but insufficiently to deform the moulding. The lugs (15) anable the core (14) to be located in the desired position in the mould and to resist displacement from that location during injection. The holes formed in the wall of the frame because of the abutment of lugs and mould wall can conveniently be utilised as stringing holes (26). JHM/DT - ISC 5975

358854

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