Patent ID: 6454429
Filing Date: 2002-09-24
Classification: B25B,F21V

Abstract:
A hand tool having an illumination structure, comprising:a metallic handle (10) having a hollow cavity (11) defined therethrough, said hollow cavity (11) having a first end having an inner wall formed with an annular inner thread (12), and a second end having an oblique circular hole (13) defined therethrough; a metallic rotation knob (20) rotatably mounted on a first end of said metallic handle (10), an insulation threaded column (22) secured on a base of said metallic rotation knob (20) to rotate therewith, and said insulation threaded column (22) having a periphery formed with an annular outer thread screwed in said annular inner thread (12) of said hollow cavity (11) of said metallic handle (10); a metallic spring (23) having a first end secured in said insulation threaded column (22) and rested on said base of said metallic rotation knob (20), and having a second end extended from said insulation threaded column (22) into said hollow cavity (11); at least one battery (24) mounted in said hollow cavity (11) and having a first end urged on said second end of said metallic spring (23); a bulb (26) received in said oblique circular hole (13) and having one side rested on a second end of said at least one battery (24); and a spring member (25) mounted between said bulb (26) and said second end of said at least one battery (24); wherein, said metallic rotation knob (20) can be rotated relative to said metallic handle (10) so that said insulation threaded column (22) is screwed and moved in said annular inner thread (12) of said hollow cavity (11) of said metallic handle (10) to move between a first position where a peripheral wall (201) of said metallic rotation knob (20) is in contact with a peripheral wall (101) of said first end of said metallic handle (10), thereby forming an electrical connection state, and a second position where said peripheral wall (201) of said metallic rotation knob (20) is detached from said peripheral wall (101) of said first end of said metallic handle (10) thereby forming an electrical disconnection state.