| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet metal tool capable of quickly conducting good joggling in simple operation against an apex angle part of a plate like part to be worked of a rough cross section L shape and its neighborhood. SOLUTION: An magnification mechanism of a four joint link type, which consists of a base lever 1 having pressing pieces 4, 34 to one end and pivotally attached each other, a driven lever 31, a drive lever 11 in which its midway part is pivotally attached to the midway of the base lever and a connection lever 21 connected to the other side of the driven lever and one end side of the drive lever, is used for a pressing mechanism of a sheet metal tool Tc, further, each pressing piece is respectively provided with a pressing face having an apex angle part of the same angle as the apex angle part of a work to be worked and a joggling face part having a difference in steps having a prescribed height from the pressing face.
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