| 摘要 |
PURPOSE: To improve sheltered performance, by symmetrically providing an ignition wire along the walls of a combustion chamber in the vicinity areas thereof or at the four sides or opposed sides of the combustion chamber. CONSTITUTION: Upper and lower portions 562 and 561, of a combustion chamber 56 fixedly clamp a support member 65 for an ignition wire 66 therebetween, wherein an ignition wire, for example, a platinum thread is wound around the support member 65, and the upper portion 562 comprises on the wall thereof a convex portion 562' having a hole for fitting a discharge electrode 38 therein, the tip end 39 of which projects a little into the combustion chamber 56. The tip end 39 and the ignition wire 66 and its support member 65 form a discharge gap therebetween. When a piezoelectric ignition device is activated, a spark is generated between the tip end 39 and the ignition wire 66 and between the tip end 39 and the support member 65 of the wire 66, and belches through an annular gap 64 and burns a fuel-air mixture of inflammable gas and air going up along the periphery of the combustion chamber 56. As a result, a lighter is improved in windbreak performance to light a cigarette by a bright flame. |
