| 摘要 |
PROBLEM TO BE SOLVED: To restrain manufacturing cost by using a part in common for a capacity switching mechanism for switching capacity over three stages and a capacity two-stage switching mechanism. SOLUTION: A stove 1 has the capacity two-stage switching mechanism for switching to intermediate heating power of two-stage combustion by opening an intermediate opening-closing valve 14 by pushing an intermediate plate spring 44 by an upper roller 34d by rotating an intermediate cam 34 by raising a switching lever 22 from a weak heating power state of one-stage combustion. The capacity switching mechanism 60 of the stove 1 is constituted so as to be switched to strong heating power of three-stage combustion by opening an upper opening-closing valve 13 by pushing an upper plate spring 43 by a lower roller 33d of an upper cam 34 interlocking with the intermediate cam 34 by a connecting plate 66 in addition to this mechanism. A gas burner 15, an intermediate switching body 64, the intermediate opening-closing valve 14, the plate spring 44, the upper cam 33 and the lower roller 33d being a part for the capacity two-stage switching mechanism are used in common. COPYRIGHT: (C)2004,JPO
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