Drawing apparatus for a drawer type electrical machinery

摘要

A drawing apparatus constructed such that a screw rod 17 having an axis center along a drawing direction of an electrical machinery 1 is rotatably supported by a floor portion 11a of a drawing type electrical machinery accommodating portion 11 of a switch gear, a nut 19 engaged with a lower portion of the electrical machinery 1 is screwed with the screw rod 17, the nut 19 is moved by rotating the screw rod 17, and the electrical machinery 1 is driven in a direction of inserting or drawing out, whereby the drawing apparatus is commonly used for various drawing-type electrical machineries regardless of sizes of the electrical machineries.