| 摘要 |
<p>A reversible ratchet wrench (10) including a ratchet body (11) having a round head portion (12) with a cylindrical, internally toothed opening (13). A ratchet mechanism, including a drive body (20) is disposed in the opening. A reversing member (43) is secured to the body to confine a pawl assembly (30). An annular shoulder surface on the ratchet body faces a corresponding annular shoulder surface on the reversing member. A second annular shoulder surface on the ratchet body faces a corresponding annular shoulder surface on the drive body. Annular seal members (80, 80A), each having a pair of radially inwardly extending and axially diverging flexible and resilient lips, are located between the corresponding sets of annular shoulder surfaces.</p> |
