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公开(公告)号：EP0996526A4
公开(公告)日：2009-08-19
申请号：EP99912500
申请日：1999-03-12
申请人： SNAP ON TOOLS CO
摘要： A palm driver (10) has a rotatable drive member (35) and an ergonomic handle body (11) connected to the drive member through a ratchet mechanism (37) and covered by a cushioning grip (30). The handle body is asymmetrically curved and is substantially continuously convex along portions engageable in use with the user's hand, having a generally flattened top surface (12) opposite the drive member and receivable in the user's palm and a peripheral side surface (16) which has a plan outline which is continuously convex and has a generally flattened heel portion (17) and an opposed, much smaller radius finger portion (21), respectively engageable with the heel and fingers of the user's hand in use.
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公开(公告)号：EP0981422A4
公开(公告)日：2001-06-13
申请号：EP99912501
申请日：1999-03-12
申请人： SNAP ON TOOLS CO
发明人： KRIVEC BERT , WENTE STEVEN R , HOFF JEFFREY H
CPC分类号： B25G1/063
摘要： A ratchet wrench (10) includes a ratchet head (12) having a part-cylindrical surface (18) with head teeth (20) thereon and an elongated handle (14) hingedly coupled to the head (12). The handle (14) has an axial first bore (32). A rod (46) is disposed in and movable within the first bore (32) between an engaged condition for locking the head (12) in a selected position and non-engaged condition for relative movement between the head (12) and the handle (14). A biasing structure (56) biasses the rod (46) to the engaged condition. A retaining structure (58) is coupled to the rod (46) for retaining the rod in its non-engaged condition.
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