Patent ID: 7341393

Claim:
A mechanism for connecting first and second members through a sealing member sandwiched therebetween, comprising: a position adjustment portion which adjusts a position of said first member in a direction substantially perpendicular to a surface of said second member with respect to said sealing member arranged on said second member; a reference portion which is provided to said second member and has a reference surface substantially perpendicular to the surface of said second member; a pressing portion which presses said first member in a direction substantially parallel to the surface of said second member against the reference surface of said reference portion; and a positioning member which is provided to said first member and comes into contact with the reference surface of said reference portion, said positioning member being position-adjustable with respect to a reference position of said first member, wherein said first member, while being separated from said sealing member by said position adjustment portion, is positioned by said reference portion and pressing portion in the direction substantially parallel to the surface of said second member, and is thereafter moved by said position adjustment portion in the direction substantially perpendicular to the surface of said second member to deform said sealing member.