| 摘要 |
<p>A cassette type gas cylinder, containing liquefied fuel gas, for giving an alarm when the volume of remaining fuel is reduced to a predetermined level or less in order to provide an advanced notice of replacement of the gas cylinder with a simple structure using burst energy of discharged gas. A valve (12) for opening and closing the discharged of liquefied gas is arranged at the centre on one end of a container body (11a). A gas flow channel (17), with one end thereof opened into a gas space formed above the level of the fuel when the gas cylinder is laid horizontally, is connected to the valve (12). A vibrating member (27), for producing a sound when vibrated and caused to collide with a body by the burst of the fuel gas, is disposed in the gas flow channel (17). This vibrating member (27) is connected to a damping member (38) by means of a coupling member (29). The damping member (38) is located below a predetermined level of the liquefied fuel gas, and is subjected to resistance while moving in the liquefied fuel gas. The damping member (38) suppresses the production of a collision sound made by the vibrating member (27) by providing the vibrating member (27) with resistance when the level of the liquefied fuel is above the predetermined level, but does not suppress the production of the collision sound when the level of the liquefied fuel is below the predetermined level, thereby giving an alarm indicating the reduction of remaining fuel.</p> |
