Patent ID: 7399003

Claim:
A structure for joining a passage defining member defining a plurality of passages with a supply line defining body defining a plurality of liquid supply lines, the supply line defining body being formed of an elastic member, the structure comprising: a plurality of cylindrical port defining portions which project from the passage defining member, wherein each of the port defining portions includes a port communicating with a corresponding one of the passages; the supply line defining body includes a plurality of openings each communicating with a corresponding one of the liquid supply lines; the passage defining member is joined with the supply line defining body by fitting each of the port defining portions into an associated one of the openings, thereby allowing the passages to communicate with the liquid supply lines; each of the port defining portions extends perpendicularly to the direction in which each of the passages extends; each of the openings is defined in a columnar shape and extends perpendicular to the direction in which each of the liquid supply lines extends; and a securing member which fastens the port defining portions with respect to the corresponding openings collectively, by applying fastening force to the passage defining member and the supply line defining body in the axial direction of each port defining portion, wherein two portions at which the passage defining member and the supply line defining body are joined together form a joint portion; and the securing member includes a securing frame arranged around the joint portion, wherein the securing member further includes a stopper member having a tapered portion inserted into the space between the securing frame and the joint portion so that the tapered portion is fitted to the securing frame and the joint portion to fasten together the securing frame and the joint portion.