| 摘要 |
A locking arrangement (1) for releasably locking a wear tooth (2) to a tooth adaptor (3); the wear tooth (2) being defined by a top wall, a bottom wall a nd a pair of opposed sidewalls, each sidewall having an elongate slot (5) therethrough; the tooth adaptor (3) being of generally complementary shape t o receive said wear tooth (2), and having an elongate cavity (6) on each oppos ed side thereof adapted to substantially align with a respective slot (5) of sa id wear tooth (2) when said wear tooth is installed on said tooth adaptor; said slot having a first inner surface, the locking arrangement including a retaining means (4) to be installed in each aligned cavity and slot to releasably lock said tooth (2) to said adaptor (3), the retaining means (4) including a pair of engaging retaining pieces (7, 8) adapted to fit in end- abutting relationship when in said locked position, whereby, an arcuate forc e is applied to at least one of said pieces (7, 8) to release said pieces from said locked position.
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