초록 ▼

A miniature electric generator and lighting apparatus is provided for use in a power-driven tool. The apparatus includes a rotor assembly 22 having a permanent magnet, and a stator assembly 24 within which the shaft and magnet are received. The stator assembly 24 includes a pair of electrically cond

A miniature electric generator and lighting apparatus is provided for use in a power-driven tool. The apparatus includes a rotor assembly 22 having a permanent magnet, and a stator assembly 24 within which the shaft and magnet are received. The stator assembly 24 includes a pair of electrically conductive arms 38 extending on opposite sides of the rotor, an electrically conductive shank 40 connecting the arms together, and a winding 36 of electrically conductive wire presenting a pair of opposed ends. A lamp 54 is connected to the ends of the winding by a circuit 52 so that it is powered upon rotation of the shaft. A housing assembly 30 supports the stator assembly 24 on the output shaft of the tool, and is secured to the tool. The housing assembly 30 and cooperating structure 42 position the stator assembly 24 relative to the magnet 32 to prevent contact between the stator element 34 and the magnet during rotation of the output shaft 14. The generator 22, 24 can alternately be used to power a battery charger or any other mechanism, and an extension cord, drop cord or the like can be employed to supply electricity from the generator to a remote mechanism to be powered.

대표청구항 ▼

[ What is claimed is:] [1.] A miniature electric generator and lighting apparatus for a power-driven tool, wherein the tool includes a rotary output shaft, the apparatus comprising:a rotor including a permanent magnet affixed to the rotary output shaft of the tool;a stator including a pair of electr

[ What is claimed is:] [1.] A miniature electric generator and lighting apparatus for a power-driven tool, wherein the tool includes a rotary output shaft, the apparatus comprising:a rotor including a permanent magnet affixed to the rotary output shaft of the tool;a stator including a pair of electrically conductive arms extending on opposite sides of the rotor,an electrically conductive shank connecting the arms together, and a winding of electrically conductive wire supported on the shank and presenting a pair of opposed ends;a lamp;electrical conductors connecting the ends of the winding to the lamp to form a circuit for supplying current to the lamp upon rotation of the rotor within the stator; anda tubular housing supporting the stator on the tool, the housing presenting radially opposed inner and outer surfaces and including a means for securing the housing in place on the tool and a positioning means for positioning the stator relative to the magnet of the rotor to prevent contact between the stator and the magnet during rotation of the output shaft, the positioning means including a step protruding radially inward from the inner surface of the housing, and a means for holding the stator against the step.