US Patent No. 9,431,886

METHOD OF MANUFACTURING A MAGNET PLATE FOR A LINEAR MOTOR


Patent No. 9,431,886
Issue Date August 30, 2016
Title Method Of Manufacturing A Magnet Plate For A Linear Motor
Inventorship Yoshifumi Shimura, Yamanashi (JP)
Takuya Maeda, Yamanashi (JP)
Yuusuke Kondou, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 9,431,886

1. A method for producing a magnet plate for a linear motor, the magnet plate comprising a base plate and a plurality of magnets
juxtaposed to one another on a surface of the base plate, the method comprising:
providing the plurality of magnets on the surface of the base plate at a certain interval such that there is direct contact
between the plurality of magnets and the base plate;

placing the base plate into a hollow portion of a mold;
supplying a resin material into the mold, so as to form a resin molding covering the plurality of magnets on the surface of
the base plate by means of injection molding; and

magnetizing the plurality of magnets,
wherein the base plate is a rectangular plate having a length, a width and a height, the height smaller than the length and
the width, wherein a first surface of the base plate is established on a side normal to a direction in the height direction,
and wherein the magnets are directly supported on the first surface of the base plate, and

wherein the magnets are rectangular magnets, the magnets having a length, a width and a height, the respective heights of
the magnets smaller than the respective lengths and respective widths of the magnets, wherein a second surface is established
on a side of the magnet normal to a direction in the height direction of the magnet, and wherein the second surface is parallel
to the first surface.