| 摘要 |
PURPOSE: An automatic gas switching unit is provided to easily manage the gas feed by confirming the switching time of the unit and the replace time of a gas container with eyes. CONSTITUTION: An automatic gas switching unit is performed by the steps of: pressing a set pin(34) with a projection unit(42a) of a lower plate(42) if the inner pressure of a body member(10) reaches the switching set pressure by consuming most of the gas in a gas feed terminal; closing a nozzle(12); and flowing LPG out of a gas feed unit(2a) by opening a nozzle(12a); revolving a lever after confirming pressure is fallen less than switching pressure from a pressure gauge(60); fixing a set pin(34a) to a penetrated hole(17) after lifting up the set pin through the elastic force of a spring(33a); and completely closing the nozzle(12) up to the next switching time. Then, an empty container is replaced with a filled container.
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