Patent ID: 6347878
Filing Date: 2002-02-19
Classification: F21L,F21V

Abstract:
A flashlight comprising:a barrel body of electrically conductive material having annular front and rear end portions spaced apart from each other in an axial direction to form a battery unit accommodating space therebetween; a sleeve member sleeved co-axially and threadedly on said front end portion of said barrel body and having an inner wall surface formed with an inwardly projecting stop unit; a lamp unit disposed in said sleeve member, said lamp unit including a lamp seat and a light bulb mounted removably on said lamp seat; an electrical conductor unit disposed in said sleeve member between said front end portion of said barrel body and said lamp unit, said electrical conductor unit including a conductive core member having a first end in electrical contact with said light bulb, and a second end adapted to electrically contact with a first electrode of the battery unit in the battery accommodating space, a core holding block of electrical insulating material formed with an axial core mounting hole in which said core member is mounted, and a tubular conductive coupling member having said core holding block received therein, said coupling member having a rear section in electrical contact with said front end portion of said barrel body, and a front section engaging in electrical contact with said lamp seat thereby electrically connecting said barrel body and said lamp seat; a resilient biasing member disposed in said sleeve member and having one end limited by said stop unit and an opposite end abutting against said lamp seat, said resilient biasing member pushing said lamp seat for urging said coupling member to abut against said front end portion of said barrel body to ensure electrical contact between said coupling member and said barrel body when said sleeve member is rotated relative to said barrel body while maintaining engagement with said barrel body; and a switch device mounted operably on said rear end portion of said barrel body and adapted to be operated to make or break electrical connection between said barrel body and a second electrode of the battery unit in said battery accommodating space.