Ratchet type ring spanner has first and second switch rods slidable between first and second ratcheting positions within traversing holes, to selectively engage pawl set within cavity

摘要

The spanner has a handle (10) formed with a cavity (15) connected to traversing holes (17) extending through the handle sides. The traversing holes respectively receive first and second switch rods (18a,18b) slidable between first and second ratcheting positions, to selectively engage a pawl (30) set within the cavity. The pawl selectively engages a rotary drive member (20) set within a hole formed to a head (11) integrally provided to the handle. At the first ratcheting position, the first and second ends (33,35) of the pawl abut the inner ends (181) of the switch rods, while the second arcuate surface (36) of the pawl abuts the wall of the cavity. At the second ratcheting position, the pawl ends abut the switch rod inner ends, while the first arcuate surface (34) of the pawl abuts the cavity wall.