| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve device capable of reducing a valve-main-body manufacturing cost and a valve main body used in the valve device.SOLUTION: A valve device includes a valve main body 25 formed into a plate shape as a whole, having a channel 253 penetrating in a thickness direction, and having a concave portion 254 extending from the channel 253 in a direction orthogonal to the thickness direction; and a lead valve 263 provided adjacently to the valve main body 25, capable of opening or closing the channel 253, and bent within the concave portion 254 at a time of opening the channel 253. The valve main body 25 is constituted by stacking a plurality of thin plate materials 27. Through holes 28 for forming the channel 253 and the concave portion 254 are formed in the respective thin plate materials 27. The concave portion 254 is configured to be shallower as being farther from the channel 253 by forming the through holes 28 of the respective thin plate materials 27 to have different magnitudes. A thickness tapered portion 29 that is thinner as being closer to the channel 253 is provided on a concave-portion-254-side edge of the through hole 28 of each thin plate material 27. |
