| 摘要 |
A device for mounting/demounting a spare tire for automobiles, comprises: a pivot support bracket which is installed in recesses formed on the bottom of a trunk, and includes a turn support hole formed in its center; a pivot rod including a pivot rotatively inserted into the turn support hole, and a screw formed on its outer circumference; a moving rod including a screw on its inner circumference, which matches with the screw of the pivot rod, to move upward and downward, and a screw on its outer circumference having the same turn direction as the screw on inner circumference; and a handle installed on the moving rod to rotate it.
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