A locking apparatus for a seat rail for a vehicle, in which a spring is compressed and fastened when first and second parts are coupled to an upper rail, such that convenience of assembly is improved, and structures for fixing the spring are respectively provided on the first and second parts, such that the structures for fixing the spring are simplified.

A sliding rail having an enhanced rigidity modulus including an upper rail assembly, a lower rail assembly, and retainers is provided. The upper rail assembly is slidably arranged in a sliding groove in the lower rail assembly through a pair of retainers. First raised ribs and/or steel ball clamping grooves are arranged at intervals on surfaces of the retainers. A steel ball is mounted in the steel ball clamping groove. A supporting structure extending backwards in a length direction of the retainers is arranged at a rear end of each of the retainers. When the upper rail assembly slides backwards to the farthest stroke, the supporting structure provides longitudinal auxiliary support for a mid-rear section of the upper rail assembly, the supporting structure is in contact with the lower rail assembly, and a gap is reserved between the supporting structure and the upper rail assembly.

The present disclosure relates to a track for an automotive vehicle seat comprising: a first, upper, rail and a second, lower, rail mounted sliding relative to each other along a sliding axis, that define a cavity between them; a bolt comprising at least one locking member movable from a locked position in which the at least one locking member immobilizes the first rail and the second rail relative to each other, and an unlocked position and a guiding system for the at least one locking member between the first locked position and the second unlocked position, secured to the first, upper, rail, where the guiding system comprises an inner guide secured to the first rail at two anchoring points extending respectively the guide forming body above and below a guiding orifice.

A sliding device includes a fixed rail, a movable rail, a shutter to close an opening of the fixed rail, an engaging body including a pressed portion, an engaged portion, a resilient element, and a pressing portion provided to the movable rail or the shutter. The shutter is slidable relative to the fixed rail by receiving a force from the movable rail. The engaging body is provided to one of the shutter and the fixed rail, and the engaged portion is provided to the other. The engaging body is displaceable between an engaged position where it is engageable with the engaged portion and a disengaged position displaced from the engaged position. The resilient element produces a resilient force maintaining the engaging body in the engaged position. The pressing portion contacts with the pressed portion when the movable rail slides, thus displacing the engaging body to the disengaged position.

A seat sliding device includes a lower rail, an upper rail, a lever member, a lock member, a biasing member and an operation member. The upper rail includes a shaft member, and the lever member includes bearings engaging with the shaft member. Each of the left and right bearings has a surface in contact with the shaft member at one point in an up-down direction by being biased by the biasing member. In the pair of left and right bearings, a surface in contact with the shaft member in one bearing is formed as an arc-shaped surface with a radius slightly larger than an outer diameter of the shaft member, and a surface in contact with the shaft member in the other bearing is formed as a flat surface extending relative to the upper rail in the longitudinal direction.

A seat sliding device includes a lever member, a lock member, a biasing member and an operation member. The biasing member is formed of a bar-shaped member and includes a front acting portion configured to come in contact with the front end of the lever member to bias the front end of the lever member upward, a rear acting portion configured to come in contact with the rear end of the lever member to bias the rear end of the lever member upward, and an intermediate support portion formed between the front acting portion and the rear acting portion and engaged with a engaging portion formed in the upper rail. The engaging portion supports the intermediate support portion at a position rearward of a turning center of the lever member (shaft member).

A track assembly includes a first track, a second track, and a latch assembly. The first track includes a plurality of first apertures. The second track includes a plurality of second apertures. The latch assembly includes a latch plate and an anti-chuck component. The latch plate includes a plurality of first teeth that selectively extend through the plurality of first apertures and through a subset of the plurality of second apertures. A gap is present between at least one of the plurality of first teeth and a side of a respective one of the plurality of first apertures when the latch plate is in the engaged position. The anti-chuck component is coupled to the latch plate. The latch plate includes one or more second teeth that engage at least one of the plurality of first apertures to close the gap.

A vehicle seat longitudinal adjuster (106) includes a seat track pair (1) with a lower seat track (2) and an upper seat track (4) that mutually engage one another for guided relative and longitudinal direction (x) movement. The lower seat track (2) has a substantially C-shaped profile (20, 22) with sections (24) that are bent downward at the ends. The upper seat track (4) has a substantially U-shaped profile (40, 42) with end sections (44) that are bent upward; the relative displaceability of the two seat tracks (2, 4) with respect to one another is limited by means of an interaction of an end stop (30) disposed on the lower seat track (2) with a stop element (48) disposed on the upper seat track (4), and wherein the end stop (30) is designed in the form of an extension of part of the downward bent sections (24) and the lower seat track (2) comprises a slotted hole (32) in the region of the end stop (30).

The present invention pertains to a seat slide device having: a lower rail fixed above a floor and extending in one direction; an upper rail connected to a seat and capable of moving along the lower rail; a drive pulley connected to a drive source and attached to the seat or the upper rail; an ended belt wound on the drive pulley so that one surface contacts the drive pulley, both ends of the ended belt being fixed to the floor or the lower rail; and a first and second pressing member attached to a position on the floor side of the seat or the upper rail closer than the drive pulley, each pressing member contacting the other surface of the ended belt, and the first pressing member, the drive pulley, and the second pressing member being disposed in the stated order along the one direction.

A sliding rail transmission device and a vehicle include a driving portion and at least one sliding rail assembly, the sliding rail assembly includes a rail and a movable member, the rail is provided with a flanging which extends downward, the flanging forms a first transmission toothed belt, and the rail is provided with a damping strip at a position of the first transmission toothed belt, the damping strip forms a second transmission toothed belt, the first transmission toothed belt and the second transmission toothed belt are arranged side by side, the movable member is provided with a transmission gear, the transmission gear is arranged below the first transmission toothed belt and the second transmission toothed belt, and the transmission gear can mesh with the first transmission toothed belt and the second transmission toothed belt simultaneously; and the driving portion drives the transmission gear to rotate to drive the movable member to move along the rail. Such arrangement is beneficial to realizing stable driving, and foreign matters are not easy to fall into the first transmission toothed belt and the second transmission toothed belt. The first transmission toothed belt and the second transmission toothed belt are arranged side by side and mesh with the transmission gear together, which not only ensures the overall strength of the transmission toothed belts, but also achieves the object of vibration damping and is beneficial to enhancing the adaption of tolerance.