Arm of the pantograph jack, pantograph-type jack, manufacturing method, and a pantograph-type method of manufacturing a jack of the arms of the pantograph jack

摘要

PROBLEM TO BE SOLVED: To provide a pantograph type jack which can improve the rigidity of a tooth without performing thickness increase processing for the tooth.;SOLUTION: A lower arm 13 in a lower part, which is rotatably assembled in a diamond shape between a vehicle pad and a pedestal through bearing holes 131a and 132a, includes two side faces 131 and 132 formed by almost perpendicularly bending both ends of a bottom face 133, a flange formed by being bent at the leading end of the two side faces 131 and 132, and teeth 131d and 132d formed at the leading end of the flange and engaged with an opposing arm on the opposite side. The teeth 131d and 132d are provided with beads 131e and 132e.;COPYRIGHT: (C)2013,JPO&INPIT