Seat sliding device
AssigneeAisin Seiki Kabushiki Kaisha
InventorsYukifumi Yamada, Takami Terada, Keiichi Hibino
Life of this patent
Estimating the term…
Abstract
In a seat sliding device, an upper rail slidably moveable relative a lower rail interlocks with the lower rail upon movement of the upper rail away from the lower rail. An upwardly inclined portion and a downwardly inclined portion can be provided on the upper rail and the lower rails, respectively. A spacer element is provided between the upwardly inclined portion of the upper rail and a corner of the lower rail. The inclined portions and the spacer elements interlock upon movement of the upper rail away from the lower rail. Due to sufficient area being provided between the interlocking portions, separation of the upper rail from the lower rail can be prevented.
Claims8
A seat sliding device comprising:
- a lower rail including a base portion having opposite ends for securing to a floor of a vehicle body, a pair of wall portions extending substantially perpendicularly from said opposite ends of said base portion, and a pair of upper portions projecting from respective wall portions parallel to said base portion and opposing one another, each said upper portion and wall portion defining a corner portion;
- an upper rail including means for securing said upper rail to a seat, the upper rail having a longitudinal portion disposed between said upper portions of said lower rail, a horizontal portion extending from said longitudinal portion in opposite directions substantially parallel to said base portion of said lower rail, and a pair of inclined portions projecting from said horizontal portion at an acute angle relative to said horizontal portion toward said longitudinal portion;
- roller means disposed between said base portion of said lower rail and said horizontal portion of said upper rail, for movement of said upper rail relative said lower rail;
- and
- a spacing element having a predetermined radius interposed between said inclined portion of said upper rail and said corner portion of said lower rail.
A seat sliding device comprising:
- a lower rail including a base portion having opposite ends for securing to a floor of a vehicle body, a pair of wall portions extending substantially perpendicularly from said opposite ends of said base portion, and a pair of upper portions projecting from respective wall portions parallel to said base portion and opposing one another, each said upper portion and wall portion defining a corner portion;
- an upper rail including means for securing said upper rail to a seat, the upper rail having a longitudinal portion disposed between said upper portions of said lower rail, a horizontal portion extending from said longitudinal portion in opposite directions substantially parallel to said base portion of said lower rail, and a pair of inclined portions projecting from said horizontal portion at an acute angle relative to said horizontal portion toward said longitudinal portion;
- roller means disposed between said base portion of said lower rail and said horizontal portion of said upper rail, for movement of said upper rail relative to said lower rail;
- and
- interlocking means, including a spacing element interposed between said inclined portion of said upper rail and said corner portion of said lower rail, for causing said upper portion of said lower rail to deform into interlocking engagement with said inclined portion of said upper rail at times when an upward force is applied via said spacing element to said corner portion by said inclined portion of said upper rail.
Dependencies are inferred from the claim text.