| 摘要 |
<p>This lighter I of the type comprising a reservoir for containing liquefied petroleum gas, a valve (3) mounted on the reservoir and permitting the gas to leave the same, a valve opening mechanism (4, 5), as well as an ignition system comprising a flint (6) co-operating with a spark wheel (7) rotationally operated by at least one circular thumb wheel (10) mounted co-axially with the spark wheel. This lighter is characterized in that each thumb wheel (10) is independent of the spark wheel (7) and can pivot around its axis independently of the spark wheel, and in that rotational frictional engaging means are provided between the spark wheel and the at least one thumb wheel (10) when a force is exercised on the thumb wheel with a radial component having a value greater than a predetermined value.</p> |
