The present invention relates to a lifting shaft member, and a manufacturing method for a carrying robot, first lift shaft member penetrating portion is formed is provided with a first abutment (11) respectively in the width direction both end portions along the longitudinal direction (10), wherein the 1 elevation shaft member 10 and forms a symmetrical about the axis along the longitudinal direction the second joint 21 is provided with the second lifting shaft member is joined to the first junction (11) in the width direction both end portions 20 and the first, has a configuration comprising a central reinforcing member 30 disposed in the inner space 2 elevating shaft members (11,21) are forming.
Accordingly, the first lift shaft member and the through portion is formed in a longitudinal direction provided with a first junction, respectively in the width direction both end portions, forms a symmetrical about the axis along the length direction of the first elevating shaft member wherein in the width direction both end portions by making the second lifting shaft member provided with a second joint which is joined to the first joint, each extrusion method, by default, doemeun the mold is simple and easy to manufacture way to create a uniform thickness defects occur remarkably low as well as is a weight according to the minimization of the thickness to enable, and also good surface roughness and be able to achieve a result productivity while enabling a cost reduction according to the relief processing quantity, and, inside the first and the second lifting shaft member forming as the stiffness can be increased through the central reinforcing member and the reinforcing corner member disposed in the space to obtain the effects such as being able to improve the reliability of the product kkoehal Fig.