Patent ID: 8615887

Claim:
A line-type grass cutting head, comprising: a spool comprising a first set of projections and a second set of projections; a housing comprising a first housing portion and a second housing portion, said first housing portion comprising a plurality of first teeth, said first set of projections cooperating with said plurality of first teeth, said housing defining an inner volume, said inner volume receiving said spool; an elastic member elastically loading said spool with respect to said housing; and a reversible element arranged in said housing, said reversible element comprising a first side and a second side, said first side defining a plurality of second teeth, said second side defining a plurality of third teeth, said first side being opposite said second side, one of said plurality of second teeth and said plurality of third teeth facing the second housing portion and the other of said plurality of second teeth and said plurality of third teeth facing the spool arranged in the inner volume of the housing, said second set of projections cooperating with the one of said plurality of second teeth and said plurality of third teeth facing the spool.