JP2005048919A5 - - Google Patents

Claims (11)

A tank comprising a valve and a container-like tank body into which the valve is inserted,
The tank body is
A peripheral wall formed by integrating an outer peripheral wall and an inner liner except for the periphery of the through hole;
A metal base fitted into the through hole of the peripheral wall;
Have
An adjacent portion is integrally formed on the liner, and the adjacent portion constitutes an inner end portion of the through hole,
A high hardness part having a higher hardness than the liner is provided in the adjacent part,
The inner end portion of the base is a protruding portion that protrudes inward of the tank in the axial direction of the tank, and the protruding portion contacts the adjacent portion of the liner,
A tank in which a sealing member having elasticity is provided on an outer peripheral surface of the protruding portion of the base and an inner peripheral surface of the adjacent portion of the liner. The tank according to claim 1, wherein the sealing member is an O-ring having a circular cross section. The tank according to claim 1, wherein the outer peripheral wall is made of fiber reinforced plastic. The tank according to any one of claims 1 to 3, wherein the liner is made of polyamide. The said nozzle | cap | die protrudes inside the said tank, The action direction of the internal pressure of the said tank which acts on the seal part of the said liner was made into the radial direction of the valve | bulb cross section which clamps the said valve | bulb. The described tank. The tank according to any one of claims 1 to 5, wherein the liner is made of resin. The tank according to any one of claims 1 to 6, wherein the through hole is formed in a substantially cylindrical shape. The tank according to any one of claims 1 to 7, wherein the through hole has a substantially columnar shape, the base has a substantially cylindrical shape, and the adjacent portion has a cylindrical shape. The tank according to any one of claims 1 to 8, wherein an outer peripheral portion formed on the base has an annular shape with a triangular cross section and protrudes in a direction perpendicular to an axial direction of the tank. The tank according to any one of claims 1 to 9, wherein the flange formed on the base protrudes outside the tank in an axial direction of the tank. The tank according to any one of claims 1 to 10, wherein the high hardness portion is made of metal.