| 摘要 |
PURPOSE:To apply a component force to a hose in a press-contacting direction, prevent smear and oil leak and improve yield of product, by a method wherein the side face opposite to the end face side of a hose at a swollen out part is made into a slope, end faces of the hoses are butted against each other, which is covered with a heat- shrinkable tube. CONSTITUTION:When a heat-shrinkable tube 48 is heated and shrunk, the tube 48 is stuck to an external circumference of a joint part of a hose 46 and coming-off of the hose 46 is prevented due to existence of a swollen-out part 50. Then when shrinkage force toward a shaft center direction A of the hose 46 of the heat-shrinkable tube 48 is applied to a slope 54 of the swollen-out part 50, the slope 54 is caused to generate a component force B working the shrinkage force of the slope 54 in a press-contacting direction of the mutual end faces and the end faces 52 are stuck close to each other. The press-contacting force between the end faces 52 is concentrated and a degree of adhesion is improved, smear and oil leak of a liquid resist are prevented reliably, by a method wherein an annular protrusion formed on the one side end face 52 is caused to abut with the other end face 52. Then deterioration of the liquid resist by a well and adhesion by the smear are eliminated, yield of product is improved and a reduction of a production cost becomes possible. |
