A seat adjuster drive including a stationary track that is fixed to a vehicle and a sliding track that is arranged in sliding engagement with the stationary track for movement fore and aft. A gear box, mounted to the sliding track, supports a pinion that is part of a rack and pinion drive assembly. The gear box houses a conical spiral gear set and one or more planetary gear sets. The conical spiral gear set includes a conical pinion gear that is coupled to an electric motor and a conical spiral gear that is arranged in meshing engagement with the conical pinion gear. The conical spiral gear is carried on the pinion in a sliding fit. The one or more planetary gear sets rotatably couple the conical spiral gear and the pinion through a gear reduction.

A track adjuster includes a first pair of tracks, a first lockset that may be configured to selectively restrict movement of the first pair of tracks, a second pair of tracks, and a second lockset configured that may be configured to selectively restrict movement of the second pair of tracks. The first lockset may be a first type of lockset and the second lockset may be a second type of lockset. The first lockset may include a positive engagement locking lockset. The second lockset may include a pawl-type lockset.

A vehicle seat includes a seat cushion, a seat back, a seat position adjusting device that moves and adjusts the seat cushion back and forth, and a seat position detector that detects a position of the seat cushion. The seat position adjusting device includes an upper rail that supports the seat cushion, a lower rail secured to a floor of a vehicle and configured to move the upper rail, a manipulation lever disposed inside with respect to the upper rail, and a bracket that is secured to the upper rail and supports the manipulation lever. The bracket includes a first portion that supports the manipulation lever, a second portion integratedly formed with the first portion and to which the seat position detector is mounted, and a slit that separates the first portion and the second portion.

A track adjuster includes a pair of tracks, a lockset configured to selectively restrict movement of the pair of tracks, a first lever configured to actuate an actuator of the lockset, a second lever configured to actuate the first lever, and a spring configured to apply a first biasing force to the first lever in a first rotational direction and apply a second biasing force to the first lever in a second rotational direction. The spring may be a torsion spring that may be wrapped at least partially around a cross member connecting the pair of tracks with a second pair of tracks.

Provided is a vehicle seat which is attached to a floor of a vehicle via a rail device and a coupling device with a high level of stiffness so as to minimize deformation of the rail device and the coupling device without substantially increasing the weight and the manufacturing cost of the seat. The vehicle seat is provided with an upper engagement portion secured to a member on a side of an upper rail of the rail device, and a lower engagement portion secured to a member on a side of a lower rail of the rail device and including a part opposing a corresponding part of the upper engagement portion from above defining a prescribed gap therebetween. The coupling device is provided laterally spaced from the rail device, and the upper engagement portion and the lower engagement portion are provided substantially directly above the coupling device.

A long rail assembly attached to a vehicle floor for repositioning vehicle seats in a vehicle between a plurality of seating positions. The long rail assembly includes a fixed long rail having a C-shaped cross-section in profile and an elongated opening in a side wall of the long rail, a power rail drive module configured to travel along an interior of the long rail and having at least one striker extending laterally away from the rail drive module through the elongated opening in the side wall of the long rail, and a vehicle seat having at least one leg releasably coupled to the at least one striker by a seat latch assembly.

A rail system (1), for a vehicle seat, includes a lower rail (3), an upper rail (5), a sliding block (7) and at least one rolling body cage (9) having rolling bodies (11). The sliding block (7) is rigidly connected to the lower rail (3). The rolling body cage (9) is movable relative to the sliding block (7), parallel to a longitudinal axis (13) of the lower rail (3), between two end positions defined by end stops (71) of the sliding block (7). The rolling body cage (9) is coupled to the lower rail (3) via the rolling bodies (11). The upper rail (5) is mounted movably on the sliding block (7) along the longitudinal axis (13) of the lower rail (3) and is coupled to the rolling body cage (9).

Provided is a sliding device. The sliding device includes a fixed rail, a movable rail, a rack, a pinion, a locking mechanism that restricts sliding of the movable rail, and a gear mechanism. The gear mechanism includes multiple gears and transmits a rotation generated in an electric motor to the pinion. The gear mechanism is configured such that the pinion is capable of rotating more than a specified angle of rotation when the electric motor is in a stopped state.

Provided is a vehicle seat which is attached to a floor of a vehicle via a rail device and a coupling device with a high level of stiffness so as to minimize deformation of the rail device and the coupling device without substantially increasing the weight and the manufacturing cost of the seat. The vehicle seat is provided with an upper engagement portion secured to a member on a side of an upper rail of the rail device, and a lower engagement portion secured to a member on a side of a lower rail of the rail device and including a part opposing a corresponding part of the upper engagement portion from above defining a prescribed gap therebetween. The coupling device is provided laterally spaced from the rail device, and the upper engagement portion and the lower engagement portion are provided substantially directly above the coupling device.

A seat slider device may include a lower rail attachable to a body of a vehicle; and an upper rail attachable to a lower portion of a seat and slidably engaging with the lower rail. The upper rail may include a lock pin movable along a short direction of the upper rail. The lower rail may include a plurality of first holes and a second hole. The first holes may be arranged along a longitudinal direction of the lower rail and configured to engage with the lock pin, and the second hole may be arranged with the first holes along the longitudinal direction of the lower rail. The second hole may be positioned at a position where the lock pin is incapable of engaging with the second hole or the second hole may have a size with which the lock pin is incapable of engaging.