Seal structure

A seal structure comprising:

• a first member including a first joint surface and a flat third joint surface forming a corner with the first joint surface;
• a second member joined with the first member, the second member including a second joint surface joined with the first joint surface of the first member, a flat fourth joint surface forming a corner with the second joint surface, and a recessed portion formed in the corner between the second and fourth joint surfaces;
• and
• a third member joined with the first and second members, the third member including a fifth joint surface joined, through a liquid seal, with the flat third joint surface of the first member and the flat fourth joint surface of the second member, the fifth joint surface including a flat region and a chamfered region which is recessed from the flat region of the fifth joint surface and which confronts the recessed portion of the second member, the fifth joint surface extending from a first lateral edge to a second lateral edge in a widthwise direction which is perpendicular to a joining direction of the fifth joint surface with the third and fourth joint surfaces, the chamfered region being formed along one of the first and second lateral edges,
• wherein the third member further includes a projecting portion projecting from the chamfered region of the third member toward a space formed by the recessed portion of the second member,
• wherein the first member includes a recessed portion formed in the corner between the first and third joint surfaces, and
• wherein a length of the projecting portion is smaller than a length of a space formed by the recessed portion of the first member and the recessed portion of the second member.