The present disclosure relates to an adjustment device for a head rest of a vehicle seat, including a locking device for adjusting a in relation to a back rest connection in a longitudinal direction and a vertical adjusting, where a locking device for locking the adjustment device is provided which comprises a release lever to be activated by the user which swivels a blocking element which in turn swivels a locking element.

It is provided a vehicle seat having a base and a displaceable seat member which when a backrest of the vehicle seat is tilted forward can be lowered at least with a front portion in the direction of the base, wherein there is provided a guiding element which when the front portion of the seat member is lowered can be displaced on a slotted guiding member for the guiding element from a first portion of the slotted guiding member to a second portion of the slotted guiding member. The slotted guiding member or the guiding element is provided on a blocking element of a blocking device of the vehicle seat. The blocking element with the slotted guiding member or with the guiding element can be displaced under the action of acceleration forces which occur in the event of a crash relative to the base.

A passenger seat for a passenger vehicle including but not limited to an aircraft may include a seat base, a seat back, and an energy absorption system. The energy absorption system is spherically coupled to the seat base and spherically coupled to the seat back, and includes a dampening member and a support assembly. The dampening member is movable relative to the support assembly responsive to a load applied on the seat back such that engagement between the support assembly and the dampening member dampens the load.

A vehicle seat includes: a seat frame that serves as at least a portion of a skeletal structure; a fixed bracket that is fixed on the indoor wall, the fixed bracket including a connection part having a connection surface that is substantially orthogonal to a seat width direction and extending in a substantially vertical direction; a link member in which one end is swingably connected with the connection part and the other end is connected with the seat frame, the link member being swingable in a direction substantially parallel with the seat width direction set as a swinging center axis; and a regulation part which extends from the connection part in a direction substantially parallel with the swinging center axis, the regulation part being configured to regulate, by abutting on the link member in the seat front-and-rear direction, that the link member swings beyond a preset swinging range.

A vehicle-mounted seat device includes an SB main frame, a backrest, an SB subframe, and one or more front-back position regulation mechanisms for regulating the position of the SB subframe in the front-back direction relative to the SB main frame. Each front-back position regulation mechanism includes a front restraining bracket secured relative to the SB main frame, a rear restraining bracket secured on the SB subframe, and a front-back wire strung between the front and rear restraining brackets. The rear restraining bracket is deformed such that its front end portion is displaced rearward relative to its end portion upon input of a load greater than a predetermined load. A maximum pulling load of the front-back wire is greater than a load that causes initial deformation of the rear restraining bracket.

A counterweighted release lever for a vehicle seat back release mechanism is described. The release lever includes a counterweight providing sufficient weight to move a center of mass of the release lever towards a release lever pivot point disposed adjacent to the counterweight. The counterweight may be integral to or attached to the release lever, or may be operatively connected to a release lever shaft. Vehicle seat back release mechanisms and vehicle seat assemblies including the counterweighted release lever as described above are described.

The present disclosure relates to an adjustment device for a head rest of a vehicle seat, including a locking device for adjusting a in relation to a back rest connection in a longitudinal direction and a vertical adjusting, where a locking device for locking the adjustment device is provided which comprises a release lever to be activated by the user which swivels a blocking element which in turn swivels a locking element.

A seat for a vehicle includes a seat cushion and an adjustment and suspension device having a base fixed to the frame and a supporting plate fixed to the seat cushion movable in translation relative to the base in a direction of elevation. The seat also has a restraint system that includes: at least one restraint member fixed to the frame, the restraint member defining at least one through opening extending along a main direction of elongation substantially parallel to the direction of elevation; and at least one restraint element fixed to the supporting plate, the through opening of the restraint member receiving the restraint element free in translation along the main direction of elongation.

It is provided a vehicle seat having a base and a displaceable seat member which when a backrest of the vehicle seat is tilted forward can be lowered at least with a front portion in the direction of the base, wherein there is provided a guiding element which when the front portion of the seat member is lowered can be displaced on a slotted guiding member for the guiding element from a first portion of the slotted guiding member to a second portion of the slotted guiding member. The slotted guiding member or the guiding element is provided on a blocking element of a blocking device of the vehicle seat. The blocking element with the slotted guiding member or with the guiding element can be displaced under the action of acceleration forces which occur in the event of a crash relative to the base.

A knee bolster assembly for a vehicle seat includes a knee bolster moveably mounted in proximity to the vehicle seat, the knee bolster selectively moveable between a first position, wherein a passenger is able to enter and exit the vehicle seat, and a second position, wherein the knee bolster is positioned directly in front of a seating surface of the vehicle seat, such that legs of a passenger seated within the vehicle seat are positioned between the seating surface of the vehicle seat and the knee bolster, the knee bolster adapted to prevent an occupant of the vehicle seat from sliding forward off the vehicle seat and restrict any hyper-extending of their lower legs due to forward inertia, and an energy absorbing device adapted to absorb energy when knees or legs of a passenger within the vehicle seat impact the knee bolster.