Reversible ratchet wrench including detent mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 30, 1986
Issued Date -
N/A
app pub date -
Nov 27, 1984
filing date -
Jan 26, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A reversible ratchet wrench (10) includes a wrench body (11) having a unitary head (12) including an opening (20) with circular driver and pawl portions (22,24). A driver (26) has a ratchet portion (28) received within the driver portion (22) of the opening and includes ratchet teeth (30) that extend between oppositely facing surfaces (16,18) of the wrench head (12). A pawl (38) is received within the pawl portion (24) of the opening (20) and includes teeth (40a, 40b) that extend between the wrench head surfaces (16,18) and provide continuous engagement therebetween for selective locking of the driver in one direction and ratcheting in the other direction. Driver and pawl portions (22, 24) of the wrench head opening (20) have cylindrical shapes which facilitate manufacturing and the support of both the driver and the pawl upon assembling. A ball (34) of a releasable detent mechanism (35) is provided to secure a socket to a driving lug (32) of the driver (26). A tab (42) of pawl (38) is provided for changing the direction of locking, and a spring biaser (44) operates on the pawl to provide a means for maintaining the pawl teeth (40a or 40b) in engagement with the ratchet teeth (30) on the driver in order to provide locking in one direction and ratcheting in the other direction.
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