| 摘要 |
An improved guide rail arrangement especially adaptable for vehicle power seats includes a pair of interleavable guide rail assemblies that are individually bolted to the vehicle seat and to the vehicle floor. The fixed guide rail assembly includes a C-shaped member extending upwardly into a guiding space that is formed between the parallel, downwardly projecting legs of a pair of U-shaped rail elements forming the movable rail assembly. A plurality of spaced, horizontally disposed alignable apertures are respectively incorporated in adjacent legs on one transverse side of the interleaved guide rail assemblies. Horizontal movement of the movable rail assembly with respect to the stationary assembly is stopped in a novel way by incorporating a pair of blocking plates symmetrically supported on transversely opposite sides of the longitudinal axis of rail movement. Each blocking element has at least one outwardly directed projection which is normally seated in an aperture in the leg of the inner rail element of the movable guide rail assembly, and is movable transversely outward through the apertures in the legs of the remaining guide rail elements when aligned to lock the vehicle seat with respect to the floor. Such movement is effected by means of a camming arrangement including a longitudinally positionable plate mounted adjacent the blocking plates in the interior of the inner rail element.
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