Patent ID: 7226035

Claim:
A valve device, comprising: a valve member located in a passage through which fluid passes, wherein the valve member selectively opens and closes the passage, wherein the passage is formed by a passage forming member made of a resin material; a support member, which is made of a magnetic and elastic material, wherein the support member has a proximal section, a distal section and an attraction section located between the proximal and distal sections, wherein the support member is located within the passage, the proximal section of the support member is fixed to the passage forming member, and the distal section of the support member supports the valve member; an electromagnetic driving mechanism which attracts the attraction section of the support member with magnetic force; and a film between the support member and the electromagnetic driving mechanism wherein the film associates with the passage forming member to form the passage; wherein the electromagnetic driving mechanism is outside the passage and faces the attraction section of the support member with the film in between; and wherein the valve member closes the passage when the electromagnetic driving mechanism is activated to attract the attraction section of the support member against an elasticity of the support member, wherein the valve member opens the passage according to the elasticity of the support member when the electromagnetic driving mechanism is not activated, and wherein when the valve member selectively opens and closes the passage, the support member is elastically deformed.