A release lever includes: a release pressing portion pressing a portion around a lock portion of a plate spring to release an engagement of the lock portion with a locked portion; an operation portion located in a front side of the release lever and operated by a lock release operation of an operation handle; and a swing fulcrum portion provided between the release pressing portion and the operation portion. The plate spring integrally includes: a base including the swing fulcrum portion and fixed to an upper rail; a rear biasing portion located behind the base in a vehicle front-rear direction and biasing the lock portion in a lock direction; and a front biasing portion located in front of the base in the vehicle front-rear direction and biasing the operation handle upward. The front biasing portion has a biasing force smaller than that of the rear biasing portion.

The present invention relates to a sliding device for a vehicle seat provided with an improved locking arrangement. Said locking arrangement comprises a pair of locking assemblies (1a, 1b), one for each track of the sliding device, each including a plurality of locking pins (5a, 5b) suitable for locking the upper rails of the tracks to the respective lower rails. Said locking arrangement further includes a releasing assembly for driving said locking pins to an unlocking configuration for adjusting the position of the vehicle seat. Said releasing assembly comprises a releasing member (9) and a pair of connecting members (11a, 11b), which are in a force transmission connection with the releasing member (9), on one hand, and with the locking pins (5a, 5b) of a respective locking assembly, on the other hand. According to the invention, such connecting members (11a, 11b) are entirely received inside the respective tracks. As a result, the locking arrangement has a very compact design, which turns out to be very advantageous during packaging of the tracks of the sliding device, andin additionthese moving parts of said locking arrangement are protected from dirt and dust.

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 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.

A vehicle slide rail device including a memory operation link which is configured to release a lock mechanism while leaving a memory member in a state of defining a default position, a holding link which is configured to, in response to an operation of the memory operation link, be engaged with the memory operation link by being biased and hold the memory operation link in a release operated position, a detection member which is configured to come into contact with a trigger member installed and be moved so as to release the holding state of the memory operation link at the release operated position, and a variable structure which is engaged with the pressing portion of the holding link and is configured to change a position where the pressing portion is arranged in the holding link according to a movement of the memory operation link.

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 vehicle slide rail device including a release operation member which is configured to release a lock mechanism and slide together with a memory member by removing the memory member from a state of defining a default position, wherein a second operating body of the release operation member removes the memory member from the state of defining the default position before a first operating body of the release operation member releases the lock mechanism as the release operation member is operated, and thereafter, the first operating body moves relatively to the second operating body, which is left in a state of removing the memory member from the state of defining the default position, until the first operating body releases the lock mechanism, and wherein an amount of relative movement between the first operating body and the second operating body is elastically absorbed.

A vehicle slide rail device including a release operation member which is configured to release a lock mechanism and slide together with a memory member in a slide direction by removing the memory member from a state of defining a default position; and a memory operation member which is configured to release the lock mechanism and maintain the released state while maintaining the memory member in the state of defining the default position, wherein the memory member has a receiving structure configured by an elastic structure by which the memory member is normally biased so as to maintain the state of defining the default position, and the memory member is pushed and tilted against the biasing by the movement of the release operation member, which is in an operated state, toward a predetermined operation position so that the release operation member is received into the predetermined operation position.

A seat apparatus includes: a seat on which a passenger of a vehicle sits; an inputter which is operated by the passenger; a fixer which fixes a position of the seat until the inputter is operated by the passenger and allows the position of the seat to be movable in a longitudinal direction of the vehicle when the inputter is operated by the passenger; and a restrictor which restricts the movement of the seat when a predetermined condition related to a traveling state of the vehicle or an external environment of the vehicle is satisfied in comparison with a case in which the predetermined condition is not satisfied.

The invention relates to a seat length adjuster (3), especially for a vehicle seat, comprising at least: two rail pairs (10) arranged at a distance from each other, formed respectively by two rails, an upper rail (11) and a lower rail (12), wherein the upper rail is provided with openings (16) and the lower rail (12) has through holes (14), and at least one spring-loaded, movable locking member (21), which is held on the upper rail (11) and which blocks a movement of the upper rail (11) in the lower rail (12) in a locked position (VS), and which carries toothlike protrusions (15) on its two opposite lengthwise sides, which are movable from a released position (FS) into the locked position (VS) both into the openings (16) and into the through holes (14),
wherein the locking member (21) secures the upper rail (11) and lower rail (12) in the locked position (VS), wherein the openings (16) and/or the through holes (14) have contact regions (K) for the toothlike protrusions (15) of the locking member (21) and at least some of the toothlike protrusions (15) have a respective undercut (15.1) on both tooth flanks (ZF1, ZF2), wherein in the locked position (VS) a projecting edge (15.2) resulting from this on the respective tooth flank (ZF1, ZF2) lies opposite the contact region (K) and/or touches this contact region (K).