Provided is a slide device that can prevent rattling of a seat with a simple structure. A slide device includes a lock mechanism for fixing an upper rail to a lower rail. The lock mechanism includes a shaft attached to the upper rail, a lock tooth swingably supported by the shaft, and a wave washer that presses the lock tooth in an axial direction of the shaft. An outer circumferential face of the shaft has an outer tapered face slanted so that the shaft becomes thinner along a direction from a proximal end portion toward a distal end portion. An inner circumferential face of the shaft hole of the lock tooth has an inner tapered face having a slant angle that allows face-to-face contact with the outer tapered face. The wave washer presses the lock tooth in a direction in which the inner tapered face is pressed against the outer tapered face to make face-to-face contact.

A latch assembly for a sliding seat includes a handle and a latch body fixed to the handle. The latch body is securable pivotally to one of an upper rail and a lower rail of the sliding seat. The latch body is pivotable via the handle between a locked position and an unlocked position. The latch body includes teeth openings arranged along a lengthwise dimension, where the teeth openings sequentially decrease in size. The assembly essentially eliminates problems associated with skip-locking and chucking in existing designs.

A vehicle seat slide apparatus includes: a lower rail; an upper rail movably mounted on the lower rail and configured to support a seat; an annular-shaped lock spring attached to the upper rail; and an unlocking member attached to the upper rail, wherein: the lock spring has a lock portion configured to engage the lower rail to restrict upper rail movement; the unlocking member is configured to release movement restriction of the upper rail by displacing the lock spring to release an engagement state between the lock spring and the lower rail, is disposed inside the lock spring in both longitudinal and width directions of the upper rail, and includes a rotating portion and a pressing portion; the rotating portion is made of one flat plate material, and is configured to rotate; and the pressing portion is configured to be connected to the rotating portion and press the lock spring.

The vehicle seat slide apparatus includes a lower rail, an upper rail, a locking spring for restricting movement of the upper rail by engaging with the lower rail, and an unlocking member that releases an engagement state between the locking spring and the lower rail to release movement restriction of the upper rail. The unlocking member is located inside the locking spring in both a longitudinal direction and a width direction of the upper rail, the unlocking member is rotatably attached to a mounting member, and a wire support wall that supports a wire for operating the unlocking member is connected to the mounting member.

The vehicle seat slide apparatus includes a lower rail, an upper rail, a locking spring having a locking portion that restricts movement of the upper rail by engaging with the lower rail, and an unlocking mechanism that releases movement restriction of the upper rail. One end side of the locking spring is movably attached to the upper rail, the other end side of the locking spring is fixed to the upper rail, and the locking portion is provided between the one end side and the other end side. The upper rail includes a during locking restricting portion that restricts movement of the one end side of the locking spring by contacting the one end side of the locking spring when the locking spring and the lower rail are in an engaged state.

A sliding device includes a fixed rail, a movable rail, a lock plate, and a spring member. A seat body is fixed to the movable rail, and the movable rail is slidable relative to the fixed rail. The lock plate is held by the movable rail, and is displaceable between a locking position where the lock plate engages with the fixed rail and restricts slide of the movable rail and a non-locking position where the restriction is released. The spring member exerts an elastic force to maintain the lock plate in the locking position.

An actuation mechanism for a longitudinal adjuster of a vehicle seat may have at least one actuation arm, a trigger lever, and a positioning element which is arranged on the trigger lever and which is pivotally mounted on a free lever end of the trigger lever.

The present invention relates to a sliding device (1) for a vehicle seat. The sliding device comprises a pair of parallel slideways (3a, 3b), each of which comprises a lower rail (5a, 5b), an upper rail (7a, 7b) slidably mounted to the lower rail and a latch (21a, 21b) for allowing/preventing a movement of the upper rail relative to the lower rail; a releasing member (29) is provided for driving said latches to a position in which the upper rails are free to move relative to the lower rails. According to the invention, each latch (21a, 21b) comprises a rear portion which is bent into a “U”-like shape and comprises a lower leg carrying latching elements (37a, 37b) configured to cooperate with corresponding latching elements (41a, 41b) provided in the lower rail and an upper leg configured to engage the releasing member (29). The design of the latches of the sliding device of the invention allows to improve the reliability of said sliding device.

A sliding device for a vehicle seat is provided with an improved locking arrangement. The locking arrangement includes a pair of locking assemblies, each including one or more locking pins suitable for locking upper rails of the seat tracks to respective lower rails. The locking arrangement also includes a releasing assembly suitable for driving the locking pins to an unlocking configuration and comprising a releasing member and a pair of connecting members, which are in a force transmission connection with the releasing member and with the locking pins of a respective locking assembly. The connecting members are entirely received within the respective tracks, and the releasing assembly is configured to convert a rotational movement of the releasing member into a linear movement of the locking pins of the locking assemblies.

A slide rail for a vehicle seat, comprising first and second slidably mounted profiles and a latch. Each of the first and second profiles has a web and two side flanges. The side flanges of the second profile are extended further towards one another by two re-entrant troughs themselves extended further towards the web of the second profile by downward edges. The side flanges of the first profile are extended further away from each other by flaps which pass between the downward edges and the web of the second profile. The web of the second profile comprises rigid abutments arranged facing the downward edges, the flaps of the first profile passing between the abutments and the downward edges.