VEHICLE SEAT EASY ENTRY ASSEMBLY WITH POSITION MEMORY
First Claim
1. An adjustable memory track assembly, the track assembly having a first rail adapted to be secured relative to a frame, and a second rail adapted for fore/aft sliding movement relative to the first rail;
- a track lock assembly operable via a first actuator between a locked, engaged state wherein relative movement between the first and second rails is resisted, and an unlocked, disengaged state wherein the second rail can be slid to and then locked in a user-selected position;
a memory module operable via a second actuator to record the user-selected position, the memory module including a memory wheel mounted relative to one of the second rail and first rail, the memory wheel including a plurality of teeth, the teeth adapted to engage openings in a track mounted relative to the other of the second rail and first rail when the memory module is operated;
the second actuator operatively connected to disengage the track lock assembly to allow forward movement of the second rail from the user-selected location to a forward location, and thereafter allow rearward movement of the second rail back to, but not past, the user-selected location;
characterized in thatthe memory module is provided with a blocking mechanism adapted to prevent rotation of the memory wheel to prevent rearward movement of the second rail past the user-selected position independent of the locking state of the track lock assembly.
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Accused Products
Abstract
An adjustable memory track assembly for a vehicle seat has a lower rail adapted to be secured relative to a vehicle frame, and an upper rail adapted to support the seat for fore/aft sliding movement relative to the lower rail. The adjustable memory track assembly also has a track lock assembly operable via a first actuator between a locked, engaged state wherein relative movement between the lower and upper rails is resisted, and an unlocked, disengaged state wherein the seat can be slid to and then locked in a user-selected position. A memory module is operable via a second actuator to record the user-selected position. The second actuator is also operatively connected to disengage the track lock assembly to allow forward movement of the seat from the user-selected location to a forward location, and thereafter allow rearward movement of the seat back to, but not past, the user-selected location. The adjustable memory track assembly is characterized in that the memory module is provided with a blocking element to prevent rearward movement of the seat past the user-selected position independent of the locking state of the track lock assembly.
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Citations
20 Claims
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1. An adjustable memory track assembly, the track assembly having a first rail adapted to be secured relative to a frame, and a second rail adapted for fore/aft sliding movement relative to the first rail;
- a track lock assembly operable via a first actuator between a locked, engaged state wherein relative movement between the first and second rails is resisted, and an unlocked, disengaged state wherein the second rail can be slid to and then locked in a user-selected position;
a memory module operable via a second actuator to record the user-selected position, the memory module including a memory wheel mounted relative to one of the second rail and first rail, the memory wheel including a plurality of teeth, the teeth adapted to engage openings in a track mounted relative to the other of the second rail and first rail when the memory module is operated;
the second actuator operatively connected to disengage the track lock assembly to allow forward movement of the second rail from the user-selected location to a forward location, and thereafter allow rearward movement of the second rail back to, but not past, the user-selected location;
characterized in thatthe memory module is provided with a blocking mechanism adapted to prevent rotation of the memory wheel to prevent rearward movement of the second rail past the user-selected position independent of the locking state of the track lock assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- a track lock assembly operable via a first actuator between a locked, engaged state wherein relative movement between the first and second rails is resisted, and an unlocked, disengaged state wherein the second rail can be slid to and then locked in a user-selected position;
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15. An adjustable memory track assembly, comprising:
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a first rail and a second rail adapted for fore/aft sliding movement relative to the first rail; a track lock assembly operable between a locked, engaged state wherein relative movement between the first and second rails is resisted, and an unlocked, disengaged state wherein relative movement between the first and second rails is not resisted; and a memory module operable to record a user-selected position, the memory module provided with a blocking mechanism adapted to prevent movement of the second rail in the aft direction past the user-selected position independent of the locking state of the track lock assembly. - View Dependent Claims (16, 17, 18, 19)
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20. An adjustable memory track assembly, comprising:
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a first rail and a second rail adapted for fore/aft sliding movement relative to the first rail; a track lock assembly operable between a locked, engaged state wherein relative movement between the first and second rails is resisted, and an unlocked, disengaged state wherein relative movement between the first and second rails is not resisted; and a memory module operable to record a user-selected position, the memory module provided with a blocking mechanism adapted to prevent movement of the second rail in the aft direction past the user-selected position independent of the locking state of the track lock assembly, the memory module including a memory wheel mounted relative to one of the second rail and first rail, the memory wheel including a plurality of teeth adapted to engage openings in a track mounted relative to the other of the second rail and first rail when the memory module is operated, at least one of the plurality of teeth adapted to support a load to prevent rearward movement of the second rail past the user-selected position, the memory module including a threaded axle attached to the memory wheel and a memory nut that includes a threaded opening adapted to engage the threaded axle; wherein the memory nut moves axially along the threaded axle when the seat is moved away from the user-selected location; wherein the blocking element comprises a first memory surface mounted relative to the memory nut and a second memory surface mounted relative to the memory wheel, adapted so that the first memory surface is engaged with the second memory surface when the seat is at the user-selected position; and wherein the first memory surface is engaged with the second memory surface when the seat is a prescribed distance from the user-selected position.
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Specification