Coil spring jig, coil spring manufacturing method, and coil spring testing method

A coil spring jig comprising:

• a spring support portion where one end of a coil spring is capable of being placed and which includes a hole extending along an axis at a position where the axis of the coil spring passes;
• a plurality of displacement regulating portions extending along the axis from the spring support portion, abutting against an outer peripheral surface of the coil spring, and regulating displacement of the coil spring in a radial direction of the coil spring;
• a lid portion supported by the displacement regulating portions, provided to be rotatable around the axis, capable of keeping the coil spring in a compressed state by sandwiching the coil spring together with the spring support portion, and having a hole extending along the axis at a position where the axis passes;
• a claw portion provided on the lid portion and fitted to the displacement regulating portion;
• and
• a lid portion fitting portion formed in the displacement regulating portion and regulating a movement of the lid portion in the axial direction in a state where the claw portion is fitted, wherein
• only the displacement regulating portion is provided between the spring support portion and the lid portion.