| 摘要 |
<p>An air ratchet hand tool has an elongated, generally cylindrical handle portion (16) with an axial air inlet passage (19) therethrough, and having an outer surface with two longitudinally extending channels (31, 32) formed therein, each communicating with an air motor (15). A thermoplastic grip jacket (40) covers the handle portion (16) and cooperates with the channels (31, 32) to form therebetween two exhaust air passages (50, 51) which exit at the distal end of the handle (52). Longitudinal ribs (46-48) on the jacket project radially inwardly into engagement with longitudinal recesses (31, 32) in the handle portion to inhibit relative rotational movement, while a lug (38) on the handle portion extends through an opening in the jacket to inhibit relative axial movement.</p> |
