| 摘要 |
PURPOSE: A sub-frame connection structure is provided to improve a fastening force by control a rotation occurred in the volt conclusion between stud and sub-frame of the car body. CONSTITUTION: A sub-frame connection structure a sub-frame(100), a stud(200), a bolt(300), and a nut tube(112). The sub-frame comprises an inner pipe(110) in which a first guide groove is formed inside. The stud is located in the upper part of the sub-frame and second guide groove is formed inside. The bolt is inserted through the first guide groove of the sub-frame into the second guide groove of the stud. The bolt couples the sub-frame and the stud. The nut tube is inserted into the inside of the first guide groove formed in the inner pipe of the sub-frame.
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