| 摘要 |
<p>The invention relates to a work tool (1) comprising a releasable tooth (50,60,80,90) which is releasably fixed to a tooth support member (4,61,91), the support member comprising a base surface (43), two spaced-apart side surfaces (16,17), a front surface (18), a rear surface (19) and a top surface (23) extending along a length (L1) between the front surface (18) and the rear surface (19). The tooth (50,60,80,90) comprises two spaced-apart side walls (11,12) situated alongside the side surfaces (16,17), a front transverse part (13) and a top wall (8) extending along a length (L3) from the front transverse parts (13), the top wall (8) comprising an opening (15) overlying a part of the top surface (23). The opening extends from a front transverse edge (15') along a length (L2) of not more than 50%, of the length (L3) of the top wall (8).</p> |
