| 摘要 |
PROBLEM TO BE SOLVED: To reduce a cost by facilitating the setup of a die to reduce a man- hour, and making the whole shape compact in regard to a cam unit to be used for piercing a small hole in a body frame for an automobile. SOLUTION: This cam unit consists of cam drivers 2 fixed on movable dies, a cam slider 3 abutted on the cam drivers 2 and made to move back and forth by a desired stroke in the specific direction, and a mounting base 4 supporting freely slidably the cam slider 3 and fixed on a fixed die. In this case, the cam slider 3 is made a cam unit 1 formed consecutively to a length corresponding to the plural cam drivers 2 arranged side by side in the specific direction in the orthogonally crossed direction.
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