US Patent 8122569 Auxiliary handle for hand-held power tool

An auxiliary handle for a hand-held power tool (7) includes an attachment section (21) for securing the auxiliary handle (11) on a section (8) of the power tool (7) a gripping member (31) for holding the auxiliary handle (11), a lag hinge (46) provided between the attachment section (21) and the gripping member (34), and including a locking member (52) pivotable about an axis (53) extending parallel to the axis (12) of the lag hinge (46) between its locking position in which it blocks the lag hinge (46), and a release position thereof in which the lag hinge (46) is released.