ASSEMBLY STRUCTURE FOR NON-MAGNETIC BODY

摘要

An assembly structure of a nonmagnetic member to which a position sensor arranged to to sense a rotation position of the rotation member, includes: a nonmagnetic member including a hollow portion; a cover which is fixed to an opening end portion of the hollow portion; and a retaining portion which is provided on an outer circumference portion of the hollow portion of the nonmagnetic member, and to which the position sensor is assembled from the opening end portion's side to be slid in a rotation axis direction, the cover restricting movements of the magnet holding portion and the position sensor in the rotation axis direction in a case where the cover is fixed to the nonmagnetic member in a state where the magnet holding portion and the position sensor are assembled to the nonmagnetic member.

主权项

1. An assembly structure of a nonmagnetic member to which a position sensor arranged to sense a variation of magnetic flux of a magnet rotated with a rotation member around a rotation axis, and thereby to sense a rotation position of the rotation member, the assembly structure comprising:
a nonmagnetic member including a hollow portion in which the rotation member is rotatably inserted; a cover which is fixed to an opening end portion of the hollow portion of the nonmagnetic member to close the opening end portion of the hollow portion of the nonmagnetic member; a magnet holding portion which holds the magnet, and which is inserted in the hollow portion of the nonmagnetic member from the opening end portion's side, the magnet holding portion being arranged to be assembled to an end portion of the rotation member to rotate as a unit with the end portion of the rotation member; and a retaining portion which is provided on an outer circumference portion of the hollow portion of the nonmagnetic member, and to which the position sensor is assembled from the opening end portion's side to be slid in a rotation axis direction, the cover restricting a movement of the magnet holding portion in the rotation axis direction, and a movement of the position sensor in the rotation axis direction in a case where the cover is fixed to the nonmagnetic member in a state where the magnet holding portion and the position sensor are assembled to the nonmagnetic member.