Abstract: A dislocation-type safety lighter the invention is disclosed. The dislocation-type safety lighter includes a main body, a wheel racket, a file wheel, a metal cap, and a lever. The lever includes a pressing part, a base, and a slipping hole. Each side of the base furnishes a salient part used to be the pivot point C of the lever. The salient parts are fitted in the securing holes near the bottom of the file-wheel seats, and the securing holes) are used as pivot seat for bearing the salient parts. The metal cap is capped on the top of the wheel racket to cover the file wheel and the lever. The height H between the elevation of the “point A” of exerting force P and the elevation of the pivot point C is in the range (?)H?*H*(?)H? where the height H? is equal to the diameter of the file wheel (3). The larger the height H, the more laborious it is to turn the file wheel (3) by the thumb of the user that makes the children whose exerting force is relatively weak harder to ignite the lighter.

Abstract: A child-resistant lighter includes a main body, a wheel racket, a file wheel, a metal cap, and a lever is disclosed. The lever having an upward slant angle of ? is within the range 10°???20° further includes a pressing part, a base, and a slipping hole. Both sides of the base furnish a salient part for acting as the pivot point of the lever, and the salient part is fitted into a securing hole provided at the bottom portion of the file wheel. The securing holes are used as the pivotal bearing seat for bearing the salient part. The pressing part having a slant surface forms an angle ? with respect to the lever and has a horizontal downward slant angle(?-?). When it comes to use, the user exerts a force P by pressing on the slant surface of the pressing part and the file wheel with his/her thumb making the lighter generate flames. The effective force acting on the lever is P cos ? where the effective range of ? is 27°???60°, thereby the range of the effective force is 0.5P?P cos ??0.9P.