Patent ID: 7770286

Claim:
A manufacturing method for a winding assembly of a rotating electrical machine, comprising a winding step of winding respective winding members so that each of the plural winding members has a first straight part, a second straight part, a first turn part connecting the first straight part and the second straight part at one side; of the winding member and plural second turn parts connecting the first straight part and the second straight part at the other sides of the winding member, wherein at the winding step, a rotation block, a fixed block and a wire rod feed mechanism are used, the rotation block includes a rotation surface rotatable around a rotation axis between an original position and a rotation position, the fixed block includes a first and a second surfaces opposite to each other and a shaping surface formed between end parts of the first surface and the second surface, the shaping surface is made to have a substantial semicircular shape with the rotation axis as a center and is extended in a direction of the rotation axis, and the wire rod feed mechanism is constructed to supply the plural wire rods in a state where they are arranged substantially in parallel to each other and along a supply line inclined by a predetermined angle with respect to the rotation axis, at the winding step, a first wire rod feed step, a first wire rod turn step, a second wire rod feed step, and a second wire rod turn step are performed in this order, at the first and the second wire rod feed steps, the rotation surface of the rotation block is at the original position, the wire rod feed mechanism supplies the plural wire rods so that they extend from the first surface of the fixed block onto the rotation surface of the rotation block and project from the rotation axis by a predetermined dimension, and consequently, lengths of the first and the second straight parts are set, and at the first and the second wire rod turn steps, the plural wire rods are simultaneously bent along the shaping surface by a first rotation movement in which the rotation surface of the rotation block rotates around the rotation axis from the original position to the rotation position in a predetermined direction, and the first and the second turn parts are respectively formed, and after the first and the second turn parts are formed, the rotation surface of the rotation block is returned to the original position in accordance with a second rotation movement in which the rotation block is rotated reversely to the first rotation movement, the winding step includes a lead wire preparation step between the first wire rod feed step and the next first wire rod turn step, this lead wire preparation step includes a cut step of cutting at least one wire rod selected from the plural wire rods between the fixed block and the wire rod feed mechanism, and a cut end part of the cut wire rod is bent at the next first wire rod turn step by the rotation of the rotation block in a state where it projects more than the other wire rods.