Seat rail assembly
AssigneeTs Tech Co., Ltd.
InventorsAndrew Simms, Dean Vandenheede, Justin Schrand
Life of this patent
Estimating the term…
Abstract
A seat rail assembly capable of stably holding a position of one or more vehicle seats relative to the vehicle floor. The seat rail assembly includes an upper rail on which the seat is provided and a lower rail which is mounted to the vehicle floor. The upper rail is slidably provided within the lower rail, and incorporates an engagement assembly with a dual wedge engagement assembly to ensure constant contact between the lower and upper rails. A gearbox configured to remove lash may be provided on the upper rail for moving the upper rail relative to the lower rail.
Claims18
A seat rail assembly comprising:
- a first rail having longitudinally spaced slots;
- and
- a second rail having a gear box, the gear box having:
- at least one drive screw rotatable in a first or second rotational direction, each drive screw having a shaft and a thread configured to engage with the longitudinally spaced slots of the first rail;
- a lobe provided on the shaft of the drive screw and configured to engage with the longitudinally spaced slots of the first rail, wherein the lobe is freely rotatable relative to the thread of the drive screw;
- and
- a lobe spring configured to bias the lobe in the first rotational direction.
A seat rail assembly for mounting a vehicle seat to a vehicle floor, comprising:
- a first rail configured to be mounted to a vehicle floor, the lower first rail having longitudinally spaced slots and defining a sliding space;
- a second rail configured to receive at least one vehicle seat mounted thereon, the second rail at least partially provided within the sliding space of the first rail and slidable relative to the lower rail in a first direction or in a second direction opposite the first direction;
- a gear box provided on the second rail, the gear box comprising:
- at least one drive screw rotatable in a first or second rotational direction, each drive screw having a shaft and a thread configured to engage with the longitudinally spaced slots of the first rail,
- a lobe provided on the shaft of the drive screw configured to engage with the longitudinally spaced slots of the first rail, wherein the lobe is freely rotatable relative to the thread of the drive screw, and
- a lobe spring configured to bias the lobe in the first rotational direction;
- an engagement assembly provided within the sliding space of the first rail, the engagement assembly comprising a first engagement member and a second engagement member that are configured to move independently of each other depending on movement of the second rail relative to the first rail, the first engagement member slidably provided on the second rail, the second engagement member slidably provided on the first engagement member and slidable between a first position and a second position;
- wherein the first engagement member is biased in the first direction and the second engagement member is biased in the second direction towards the first position;
- and
- wherein, as the second rail slides relative to the first rail in response to operation of the gear box, the second engagement member maintains contact with the first rail and the first engagement member maintains contact with the second rail.
Dependencies are inferred from the claim text.