Patent ID: 7866669

Claim:
A composite sealing material to be installed in a sealing groove, comprising: a first sealing member, which is located on one side wall side of the sealing groove in the case in which the composite sealing material is installed in the sealing groove, and a second sealing member, which is located on the other side wall side of the sealing groove in the case in which the composite sealing material is installed in the sealing groove, wherein the first sealing member is made of an elastic member, the second sealing member is made of a synthetic resin material that is harder than the first sealing member, the first sealing member is provided with a first sealing member body and a first sealing portion provided with a swelled portion swelling externally from an opening portion of the sealing groove, the swelled portion of the first sealing portion of the first sealing member swelling in a curved face shape to the opening portion side of the sealing groove, the second sealing member is provided with a second sealing member body and a second sealing portion located on the opening portion side of the sealing groove as compared with the second sealing member body, the second sealing portion of the second sealing member is provided with a second extended portion extending to the first sealing member side, the first sealing member body is provided with a first extended portion extending to the bottom portion side of a sealing groove side of the second extended portion of the second sealing member, the bottom face on the sealing groove side of the first sealing member body defines a planar surface, the planar surface is configured to contact a bottom portion side of the sealing groove, in the case in which the composite sealing material is press-fitted, the swelled portion of the first sealing portion of the first sealing member is press-fitted to impart sealing ability, and the second extended portion of the second sealing member is pressed to the opening portion side of the sealing groove through the first extended portion of the first sealing member, and an upper face edge portion of the second sealing portion is press-fitted to impart sealing ability.