Abstract: This method for manufacturing a coil includes a cross section forming step for transforming an outer shape of a part to be housed in a slot in a coil wire that has a circular cross section and is not subjected to an insulation coating process, and an insulation step for performing, after the cross section forming step, the insulation coating process on the coil wire after cross section forming.

Abstract: This method for manufacturing a stator includes, after a cross section forming step for forming a sectional shape of a coil portion by compressing the coil portion and a coating step for applying an insulation coating to the coil portion, a common heat treatment step for performing, by the same heat treatment, annealing of the coil portion whose sectional shape has been formed in the cross section forming step and baking of the insulation coating applied to the coil portion in the coating step.

Abstract: A manufacturing method of a rotary electric machine is disclosed. The rotary electric machine includes a stator provided with a stator iron core, which is cylindrical and in which slots are formed in a circumferential direction on an inner circumferential surface, and coils of phases that are each inserted into the slots, and a movable element provided with a movable element iron core supported in a rotatable manner relative to the stator and at least a pair of movable element magnetic poles provided in the movable element iron core. The method includes: a split flux coil formation step; a coil setting step; a stator iron core setting step; and a split flux coil collective insertion step.

Abstract: A manufacturing method of a rotary electric machine is disclosed. The rotary electric machine includes a stator provided with a stator iron core, which is cylindrical and in which slots are formed in a circumferential direction on an inner circumferential surface, and coils of phases that are each inserted into the slots, and a movable element provided with a movable element iron core supported in a rotatable manner relative to the stator and at least a pair of movable element magnetic poles provided in the movable element iron core. The method includes: a split flux coil formation step; a coil setting step; a stator iron core setting step; and a split flux coil collective insertion step.

Abstract: A roller dice device includes a pair of rolling rollers respectively including circumferential rolling grooves formed at outer circumferential surfaces thereof, a supporting portion rotatably supporting the pair of rolling rollers respectively around roller axes extending in parallel with each other, a spaced portion configured by a rolling portion, through which a rolling material moves, and formed by the circumferential rolling grooves facing each other, and a restricting portion formed at the outer circumferential surfaces of the pair of the rolling rollers and restricting displacement of the pair of rolling rollers relative to each other in the axial direction of the roller axes.

Abstract: A rotational motor includes a stator formed by a core member including: a magnetic core portion extending in a radial direction of the rotational motor and formed into a fixed shape in every cross section thereof extending orthogonally relative to the radial direction, a coil wound around the magnetic core portion to form a plurality of layers and an engagement member engaging with the coil. A gap is generated between windings of the coil at a predetermined position when an uppermost layer winding portion of the coil is wound in series with a second layer winding portion from an outer side to an inner side of the uppermost layer winding portion in the radial direction. The coil is wound to fill the gap when a winding position of the coil is returned from an innermost side to the outer side of the uppermost layer winding portion in the radial direction.

Abstract: A linear motor coil includes a first coil portion, a second coil portion, the first coil portion and the second coil portion being arranged across a partition wall, a first connecting portion provided between the first coil portion and the second coil portion and by means of which the conductive wire crosses to the first coil portion from the second coil portion while a winding direction of the conductive wire is reversed, and a second connecting portion by means of which the conductive wire crosses to the second coil portion from the first coil portion while the winding direction of the conductive wire is reversed. The conductive wire is formed by a single wire and of which a winding start point and a winding end point are provided at an end portion of the first coil portion at a side opposite from a side where the partition wall is provided.

Abstract: A roller dice device includes a pair of rolling rollers respectively including circumferential rolling grooves formed at outer circumferential surfaces thereof, a supporting portion rotatably supporting the pair of rolling rollers respectively around roller axes extending in parallel with each other, a spaced portion configured by a rolling portion, through which a rolling material moves, and formed by the circumferential rolling grooves facing each other, and a restricting portion formed at the outer circumferential surfaces of the pair of the rolling rollers and restricting displacement of the pair of rolling rollers relative to each other in the axial direction of the roller axes.

Abstract: A rotational motor includes a stator formed by a core member including: a magnetic core portion extending in a radial direction of the rotational motor and formed into a fixed shape in every cross section thereof extending orthogonally relative to the radial direction, a coil wound around the magnetic core portion to form a plurality of layers and an engagement member engaging with the coil. A gap is generated between windings of the coil at a predetermined position when an uppermost layer winding portion of the coil is wound in series with a second layer winding portion from an outer side to an inner side of the uppermost layer winding portion in the radial direction. The coil is wound to fill the gap when a winding position of the coil is returned from an innermost side to the outer side of the uppermost layer winding portion in the radial direction.