Full seat adjustable suspension
AssigneeMichigan Seat Company
InventorRobert J. Wahls
Life of this patent
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Abstract
An adjustable suspension for a vehicle seat mounted on a scissors linkage wherein the spring supporting suspension force may be adjustable over a wide range of user weight, and wherein the scissors linkage permits the seat, which may include a back, to move in a substantially vertical direction during seat suspension movement.
Claims9
A full seat adjustable suspension comprising, in combination, base structure, a pivotal linkage movably mounted on said base structure capable of vertical movement, a seat frame having both seat bottom and seat back structure mounted upon said linkage for vertical movement therewith, spring means mounted on said base structure imposing an upward biasing force on said seat frame, and spring force adjusting means located between said spring means and said seat frame adjusting the degree of said biasing force.
A full seat adjustable suspension comprising, in combination, a base structure including substantially horizontal rails and an upwardly extending spring bracket having an upper region, a scissors linkage having lower pivots attached to said rails, lower guides guided by said rails and upper guides, a seat frame having both seat bottom and seat back structure and having pockets slidably receiving said linkage's upper guides, a lever structure having a pivot end pivotally mounted on said base structure and having a free end engaging said seat frame at a location spaced from said pockets, a slide movably mounted on said lever between said pivot and free ends, extension spring means interposed between said spring bracket upper end and said slide, and adjustment means mounted upon said seat frame operatively connected to said slide selectively positioning said slide upon said lever structure.
Dependencies are inferred from the claim text.