A vehicle seat includes a cushion, a seatback connected to the cushion and a track arrangement. The track arrangement includes a curved fixed track and a flexible track follower that is moveable along the curved fixed track between a full slouch and a full upright position. The curved fixed track is connected to a vehicle seat support base and the moveable track is connected to the cushion.

A slide rail device with an unlocking structure for a middle slide rail includes an outer slide rail mounted on a fixing member, and an inner slide rail mounted on a side wall of a movable member. The inner slide rail is coupled to the outer slide rail to enable a middle slide rail to be disposed between the outer slide rail and the inner slide rail. A ball bearing unit is disposed between the middle slide rail and the inner slide rail. A releasing element is movably disposed on the middle slide rail and arranged between the ball bearing unit and the elastic locking element. When the inner slide rail and the movable member are removed from the slide rail device, the releasing element is pushed by the ball bearing unit and pushes an elastic locking element to unlock the middle slide rail.

A rolling element cage for a linear guide system includes two receiving portions and a connecting portion connecting the two receiving portions, wherein each of the two receiving portions includes two extended top surfaces. The two receiving portions each include a plurality of apertures. Each aperture includes a side surface connecting the two top surfaces. At least one of a plurality of bearing rolling elements is receivable in each of the plurality of apertures of the rolling element cage, so that the side surface of the aperture or a transition between one of the two top surfaces and the side surface can be brought into contact with a rolling element surface of the bearing rolling element which is receivable in the aperture. The transition between one of the two top surfaces and the side surface includes, at least in sections, a broken edge, an edge including a chamfer or a rounding.

A multi-rail concealed slide rail structure includes an outer rail, a first ball retainer, a middle rail, a pair of second ball retainers, and an inner rail. One side of the outer rail is bent inward to form a first track for the first ball retainer to slide thereon. Two side edges of the middle rail are bent in the same direction to form second tracks, respectively. The middle rail is fitted on the first ball retainer, such that the first ball retainer leans against one of the second tracks. The pair of second ball retainers is movably fitted on the middle rail. One side edge of the inner rail is bent inward to form a third track corresponding to the second tracks. The inner rail is fitted on the pair of second ball retainers. Two parallel tracks are provided between the inner rail and the middle rail.

A slide module is disclosed, which comprises an outer rail, a ball rail, a plurality of first balls and a plurality of second balls. The outer rail has a first inner surface and a second inner surface. The ball rail has a first holding section and a second holding section. The first balls are rollably disposed in a plurality of first limiting holes of the first holding section in which the first ball is contacted with the first inner surface and the second holding section and distant from the second inner surface. The second balls are rollably disposed in a plurality of second limiting holes of the second holding section in which the second ball is contacted with the second inner surface and the first holding section and distant from the inner surface. Thereby, the ball rail is capable of moving along the axial direction with respect to the outer rail through the first balls and the second balls.

A linear motion guide bearing 1 includes a rail 10, a slider 20, and a plurality of rolling elements. The slider 20 has formed therein a pair of circulation passages, which are spaces connecting one end and another end in each of a pair of load-carrying races, which are spaces between a pair of first rolling surfaces 41 and a pair of second rolling surfaces 42. In a cross section perpendicular to the longitudinal direction, the rail 10 includes a bottom wall portion 11, a first side wall portion 12, a second side wall portion 13, and a top wall portion 14. One first rolling surface 41 is made up of a wall surface 15A on an inner side of a first corner portion 15, which is a region where the second side wall portion 13 and the bottom wall portion 11 are connected. The other first rolling surface 41 is made up of a wall surface 16A on an inner side of a second corner portion 16, which is a region where the first side wall portion 12 and the top wall portion 14 are connected.

Provided is a sliding device that allows two release levers to operate in a synchronous manner. The sliding device includes a lock portion that is displaceable between a locking position and a non-locking position; a release lever configured to be displaced by an operating force; an operation portion provided at a first end of the release lever in an extending direction thereof to receive the operating force; an action portion provided at a second end of the release lever in the extending direction thereof to transmit the operating force to the lock portion via the release lever; and an operating lever provided to the movable rail and displaceable between an operating position to apply the operating force to the operation portion and a non-operating position to apply no operating force to the operation portion.

A slide member having a slide surface (14) coated with a lacquer comprising a resin(16). The lacquer is in turn at least partly coated with a lipophilic composition coating (18). The lipophilic composition coating provides a slide layer (19) on the slide member with low friction.

A three-rows-of-ball bearings sliding rail is disclosed. An inner sliding rail body (1) is supported in outer sliding rail bodies (2-1, 2-2) through three rows of support ball bearings (3-1, 3-2, 3-3) which are arranged in parallel in a lengthwise direction of the inner sliding rail body. The three rows of support ball bearings (3-1, 3-2, 3-3) are respectively limited within a length range of the outer sliding rail bodies (2-1, 2-2) via ball retainers (4). Each of the outer sliding rail bodies (2-1, 2-2) includes a bottom plate (21), a first side wall (221) and a second side wall (222) which are respectively located at two sides in a widthwise direction of the bottom plate (21), are integrally formed with the bottom plate (21) and extended in a lengthwise direction of the bottom plate (21). The first side wall (221) includes a first arm and a supporting part (2211) which is bent inwardly and extends horizontally from a bottom end of the first arm. The second side wall (222) includes a second arm and an arc-shaped part (2221) which is bent inwardly from a bottom end of the second arm and integrally formed with the second arm. The three rows of support ball bearings (3-1, 3-2, 3-3) are respectively located within an upper inner corner end and a lower inner corner end of the first side wall (221), and the arc-shaped part (2221) in a cross section of the outer sliding rail bodies (2-1, 2-2); and connection lines of centers of the three rows of support ball bearings (3-1, 3-2, 3-3) form an equilateral triangle in the cross section of the outer sliding rail bodies (2-1, 2-2). This sliding rail can solve the problem of insufficient bearing capacity in the existing three-rows-of-ball bearings sliding rail, and can meet installation space requirements for a hidden sliding rail.

A motion guide device is formed of: a track member including a base portion extending along a longitudinal direction, and a pair of wall portions erected from both edges of the base portion in a width direction, and having rolling element rolling grooves formed along a longitudinal direction; and a moving member which is assembled in a movable manner along the longitudinal direction between the wall portions, and to which a pair of guide members are assembled, load rolling element rolling grooves which correspond to the rolling element rolling grooves being formed in the guide members, wherein at least either one of the guide members is equipped with a biasing member on a surface of the guide member on a side opposite to a surface of the guide member on which the load rolling element rolling groove is formed.