A railess variable seatback type rear seat includes: a linear movement device configured to convert a rotation of a motor into a linear movement; a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward; and a reclining angle change device configured to convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward.

A sliding unit for a vehicle includes: a rail having a bottom surface, both side surfaces and a top surface, the rail configured to extend in a front-rear direction, be bent, and then extend in a left-right direction; a moving part slidably disposed on the rail to slide along the rail to move in the front-rear direction or in the left-right direction; a magnetic force part disposed in the moving part and configured to be locked to or unlocked from the rail through a magnetic force; and ground parts disposed on the moving part, electrically connected to the magnetic force part, and grounded with the rail to supply power from the rail to the magnetic force part.

A vehicle includes a track that defines a guide channel and a bridge that extends over the guide channel when the bridge is in a closed position. The bridge includes a first portion that is releasably coupled to a second portion. The first portion is pivotably engaged with a first side of the track.

A vehicle includes: a vehicle status sensor to detect a vehicle status; a seat control motor to move a sliding seat of the vehicle; and a controller to control the seat control motor to move the sliding seat to a predetermined position when the vehicle status sensor detects an accident of the vehicle. With the features, the vehicle automatically returns the sliding seat to an original position when an accident occurs in the vehicle.

A vehicle includes a track that defines a guide channel and a bridge that extends over the guide channel when the bridge is in a closed position. The bridge includes a first portion that is releasably coupled to a second portion. The first portion is pivotably engaged with a first side of the track.

The present invention relates to a device of a vehicle sear rail for blocking foreign matter and a method for assembling the same. A side part inserted into a guide groove is formed at both ends of a front end member of a moving blade, and a discharge hole is formed in a housing of the moving blade module. The foreign matter flowing into the guide groove can be pushed out through the discharge hole, and thus, the deterioration in operating performance and in operating sensitivity due to the foreign matter entering the seat rail can be prevented.

A power rail system for a vehicle seat includes an outer track defining an elongated channel with an elongated lead screw mounted in the channel. An inner track is received in the elongated channel and a power length adjuster gear transmission is mounted to the inner track and drivingly engaged with the elongated lead screw. A seat structure is mounted to the inner track for movement along the power rail system.

A seat sliding mechanism includes a lower rail, an upper rail, a position sensor and a sensor bracket. The lower rail is provided on a side of a vehicle floor. The upper rail is provided at a lower part of a seat body and is slidably supported by the lower rail along front and rear directions. The position sensor is provided on the upper rail and detects a position along front and rear directions. The sensor bracket is provided on the lower rail and its proximity state to the position sensor is to be detected. The sensor bracket includes a base, a detected portion and a supporting portion. The base is fixed to a bottom of the lower rail. The detected portion is detected by the position sensor. The supporting portion supports the detected portion.

A vehicle seat sliding device includes: a lower rail fixed to a vehicle floor; an upper rail slidably engaging with the lower rail and supports a vehicle seat upward; a nut member fixed to a first rail which configures one side of the lower rail and the upper rail; a screw rod screwed into the nut member; a drive unit rotating the screw rod; and a support supporting the screw rod on a second rail which configures the other side of the lower rail and the upper rail. The support includes a holding member that is provided with an insertion hole into which the screw rod is inserted and that is fixed to the second rail, and a holding nut that is provided with a through-hole into which the screw rod is inserted and that is screwed to a screwing portion provided on the screw rod or the holding member.

A seat body is assembled with a seat chassis device that has a seat chassis mounted on the seat body. The seat body has an accommodating space and guiding troughs each having a guiding opening. The accommodating space includes a propping portion to be resiliently flattened. The seat chassis device has a base connected thereto and is formed with sliding wedge portions to slide into the guiding troughs from the guiding openings. When the seat chassis slides to a predetermined position, the propping portion springs up and abuts against the seat chassis. A spring between the base and the seat chassis is upward pushed by a resilience-adjusting unit and has its upper end received in a dome raised from the seat chassis and received in a hollow portion of the seat body.