Electromagnetic linear actuator comprising a fixed portion, a movable portion, a single guide shaft and a position sensor, and a tape drive using the electromagnetic linear actuator
AssigneeMitsumi Electric Co., Ltd.
InventorsHiromi Inoguchi, Ikuichiro Nawa
Life of this patent
Estimating the term…
Abstract
In an electromagnetic linear actuator including a fixed portion with a predetermined axis and a movable portion holding an object, a single guide shaft is coupled to the fixed portion and the movable portion and guides the movable portion to be movable with respect to the fixed portion only along the predetermined axis. A position sensor is coupled to the fixed portion and the movable portion and detects a current position of the movable portion with respect to the fixed portion. The position sensor is cooperated with the single guide shaft to inhibit rotation of the movable portion around the predetermined axis.
Claims8
An electromagnetic linear actuator comprising:
- a fixed portion having a predetermined axis;
- a movable portion holding an object;
- a single guide shaft coupled to said fixed portion and said movable portion for guiding said movable portion to be movable with respect to said fixed portion only along said predetermined axis;
- and
- a position sensor coupled to said fixed portion and said movable portion for detecting a current position of said movable portion with respect to said fixed portion, said position sensor being cooperated with said single guide shaft to inhibit rotation of said movable portion around said predetermined axis.
Dependencies are inferred from the claim text.