| 摘要 |
PURPOSE: A coupling apparatus of an arm of a swing door and a bracket is provided to support the swing door in a connecting portion of an upper ball joint, and to reduce wear of a pin and a bush by forming the clearance between the pin and the bush with connecting the vertical arm and the upper bracket and the lower bracket by the ball joint and the pin and the bush. CONSTITUTION: A vertical arm(11) is connected to a swing door(1), and connected to upper and lower brackets(50,60) to turn around the rotating shaft. A connecting member is extended from the upper bracket, and a through hole is formed in the connecting member. A cylindrical portion of a ball joint(55) is fixed to the through hole, and a lower ball is inserted to the upper part of the vertical arm. A bush(63) and a pin(64) are combined with the through hole formed in the connecting portion extended from the lower bracket. The pin is combined with the lower part of the vertical arm, and the clearance is formed between the connecting portion of the pin and the vertical arm and the upper surface of the bush.
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