| 摘要 |
An object of the present invention is to provide a member position detecting apparatus having a high degree of freedom for design and layout of a seat rail, capable of suppressing accumulation of dust and eliminating influence of an external magnetic field. A member position detecting apparatus 1 has a function of detecting whether a metallic seat rail (a moving member) 3 guided by a metallic stationary rail 2 has reached a front end position (a predetermined position) P on the stationary rail 2. The openings of the stationary rail 2 and the seat rail 3 face each other and the end portions thereof are folded and engaged with each other. The stationary rail 2 is disposed on the floor of a vehicle, and a planar magnet 5 is provided at a front end portion thereof. The seat rail 3 is fixed on a lower portion of the vehicle seat, and a magnetic sensor 7 is provided to face the magnet 5 at the front end portion of the seat rail.
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