A sliding device for a vehicle seat is provided. The sliding device includes a pair of parallel slideways, each of which comprises a lower rail, an upper rail slidably mounted to the lower rail and a latch for allowing/preventing a movement of the upper rail relative to the lower rail. A releasing member is provided for driving the latches to a position in which the upper rails are free to move relative to the lower rails. Each latch has a rear portion which is bent into a “U”-like shape and comprises a lower leg carrying latching elements configured to cooperate with corresponding latching elements provided in the lower rail and an upper leg configured to engage the releasing member. The design of the latches improves the reliability of the sliding device.

A fastening assembly includes a receiving seat and a clip having an operation portion, a holding portion, an insertion portion, and a pair of connection leg portions. The receiving seat includes a neck portion and a receiving channel. The insertion portion connects to the operation portion by the pair of connection leg portions, and the holding portion connects to the operation portion. When the clip is mounted on the neck portion of the receiving seat, the insertion portion of the clip is at least partially inserted into the receiving channel through the opening in a first neck portion side wall, and the holding portion of the clip abuts against a second neck portion side wall. When a pushing force is applied to the operation portion toward the neck portion, the insertion portion can be withdrawn from the receiving channel, such that the clip can be removed from the receiving seat.

The present disclosure relates to a vehicle seat frame structure comprising a backrest frame part and a seat cushion frame part. The backrest frame part and the seat cushion frame part are supported by a pivot bearing for being pivoted about a pivot axis. A spring device is biased with the pivoting movement. The spring device is only effective in a comfort inclination angular region. If the backrest frame part is pivoted out of the comfort inclination angular region towards the front, the spring device is released from the force flow between the backrest frame part and the seat cushion frame part. The release is provided by a shaft-hub-connection between a coupling section of a shaft and a hub of a hub body, the shaft-hub-connection comprising an angular clearance.

A seat attachment system for a mass transit vehicle including a rail, a fastener and a seat interface. The rail, which is adapted to be secured to a chassis of the mass transit vehicle, has a longitudinal T-slot adapted to receive the fastener. The rail has two non-parallel sets of corrugations on its external face. The seat interface, which is adapted to be mounted to a seat frame, is also provided with two non-parallel sets of corrugations whose angle matches that of the sets of corrugations on the rail. The sets of corrugations are adapted to cooperate and interlock in pairs so as to respectively locate the seat interface, and thereby a seat to which it is attached, vertically and horizontally upon the fastener being tightened.

A vehicle seat includes a seat framework configured including a first frame and a second frame that are capable of supporting an occupant, and a link including a first swing shaft via which the first frame is coupled to one end side of the link and a second swing shaft via which the second frame is coupled to another end side of the link; a first cover that is attached to a back face of the first frame on an opposite side from a front face configured to support the occupant, that covers a back face side of the first frame; and a second cover that is attached to a back face of the second frame on an opposite side from a front face configured to support the occupant, that covers a back face side of the second frame.

A structural shroud for a passenger seat assembly includes a hollow body having a first end, a second end opposite from the first end, and a central cavity between the first end and the second end. In certain embodiments, the structural shroud may include a magnesium alloy and/or an aluminum alloy, and may be formed via casting, forging, and/or additive manufacturing, among others. In some embodiments, a base frame assembly for a passenger seat assembly includes a monolithic base frame having a first leg portion and a first tube portion integrally formed with the first leg portion.

The present invention refers to a seating system installable on transport means comprising: —a base intended to be anchored to the transport means on the floor and/or a wall of said means; and one or more seats which may in turn be anchored to the base by connection means interposed between the base and each of said one or more seats. Said connection means are quick-release coupling means.

A seat back panel may have a panel having a central portion bounded by an upper portion and a lower portion. The upper portion may have an upper attachment member adapted to selectively receive a portion of a framework for a seat. The central portion may have a least one side attachment member adapted to selectively receive a portion of the framework. the central portion may have a concave shape. The lower portion may have a convex shape. The concave shape and the convex shape may give the panel a general S-shape.

A cushion frame comprises first and second side frames and a coupling member coupling rear end portions of the first and second side frames. Each of the first and second side frames has a fixation portion at a corresponding rear end portion. The first side frame comprises first and second bead portions in the rear end portion thereof. In the first side frame, a hypothetical ridge line of the first bead portion substantially coincides with an imaginary line extending from the coupling member to the fixation portion. An angle between the hypothetical ridge line of the first bead portion and a hypothetical ridge line of the second bead portion is equal to or less than a preset angle.

A seat reclining device includes a ratchet and a guide assembled to be rotatable relative to each other, a pawl capable of restricting relative rotation between the ratchet and the guide, and a rotation cam that pushes and moves the pawl. The pawl has an eccentric structure in which the pawl is pressed and inclined to one side in the rotation direction due to a pressing force received from the rotation cam, and has a first protrusion that restricts the inclination of the pawl by contact with a guide wall that the first protrusion faces.