| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow channel member with a seal member that improves creeping property and sealing property by uniformly applying stress to the whole seal member.SOLUTION: A flow channel member 30 which is constituted so that an ink cartridge 20 is attachable thereto and detachable therefrom, includes: a seal member 330 formed of an elastic material, and disposed over a periphery of a fitting part 316 of a flow channel member body 310. The seal member 330 includes: a top surface part 330A which forms a sealed space 336 demarcated between an inner peripheral surface of a leg part 21A and an outer peripheral surface of the fitting part 316 when an end surface of the leg part 21A is abutted against the seal member; and thick wall parts 330D and 330E that are formed along an axial direction of the fitting part from both end parts of the top surface part 330A, that are integral members with interior leg parts 330B and 330C of which end surfaces 330E and 330F respectively abut against the flow channel member body 310, and that further form a curved surface between an inner peripheral surface of the interior leg part 330B, an inner peripheral surface of the outer leg part 330C, and an inner peripheral surface of the top surface part 330A. |
