Appliance for manual opening and closing component parts of machine with one hand

摘要

The machine has an upper part (1) pivoted relative to a lower part (2). They are latched together by a hook (42) at one end of a lever (40) engaging with a stud (49) on the lower section. To unlatch a handle (30) is withdrawn against the action of a spring from a hole (17) and used to pivot the lever until the handle is inserted in a second hole (18). The cranked handle can then be used to pivot the upper part away from the lower