A vehicle seat includes: a seating portion configured to support a seated occupant in a seating posture; a shell portion configured to cover the circumference of the seating portion including side portions of the seated occupant from a rear side of the occupant; a first moving device that is configured to move a relative position of the seating portion with respect to a vehicle; and a second moving device that is configured to move a relative position of the shell portion with respect to the seating portion, the second moving device being configured to move at least side portions of the shell portion to a first position at which the side portions of the seated occupant is covered by the shell portion and to a second position at which the side portions of the seated occupant is uncovered by the shell portion.

There is provided a seat back interlocking ottoman device for a vehicle seat configured such that an angle of a seat back relative to a seat cushion can be adjusted and an ottoman is provided to the seat cushion. The ottoman device includes an interlocking mechanism configured to retract the ottoman to a retracted position below the front side of the seat cushion when the seat back is located at a regular usage position and to move the ottoman from the retracted position to an extended position at the front side of the seat cushion to thus support a leg part of a passenger when the seat back is tilted rearwards from the regular usage position. A part of the interlocking mechanism is configured to be operable by an arbitrary operation such that the ottoman can be moved between the retracted position and the extended position.

A vehicle seat includes: a seating portion configured to support a seated occupant in a seating posture; a shell portion configured to cover the circumference of the seating portion including side portions of the seated occupant from a rear side of the occupant; a first moving device that is configured to move a relative position of the seating portion with respect to a vehicle; and a second moving device that is configured to move a relative position of the shell portion with respect to the seating portion, the second moving device being configured to move at least side portions of the shell portion to a first position at which the side portions of the seated occupant is covered by the shell portion and to a second position at which the side portions of the seated occupant is uncovered by the shell portion.

A conductor chair has a main seat pad and a main seat pad frame. The main pad is mounted to the main seat pad frame. The back support is mounted to a seat frame. A seat hinge is mounted to the seat frame. The seat hinge connects the main seat pad to the main seat pad frame providing the main seat pad with a bimodal operation between a vertical stowed position and a deployed position. A support frame supports a horizontal rail. The horizontal rail supports the seat frame. The seat frame is adjustable between a forward and backward position. The support frame is slide mounted to the vertical rail. Vertical rail rollers are mounted to the support frame. The vertical rail rollers roll on the vertical rail. The main seat pad frame supports the main seat pad. The base plate is connected to the vertical rail.

A conductor chair has a main seat pad and a main seat pad frame. The main pad is mounted to the main seat pad frame. The back support is mounted to a seat frame. A seat hinge is mounted to the seat frame. The seat hinge connects the main seat pad to the main seat pad frame providing the main seat pad with a bimodal operation between a vertical stowed position and a deployed position. A support frame supports a horizontal rail. The horizontal rail supports the seat frame. The seat frame is adjustable between a forward and backward position. The support frame is slide mounted to the vertical rail. Vertical rail rollers are mounted to the support frame. The vertical rail rollers roll on the vertical rail. The main seat pad frame supports the main seat pad. The base plate is connected to the vertical rail.

A passenger seat including a frame subassembly including a fore transverse beam, and a seat pan movably coupled to the frame subassembly. A motion path of the seat pan relative to the frame subassembly includes at least one of rotational motion and translational motion. The fore end of the seat pan rests on and rides along the fore transverse beam such that the fore end of the seat pan is unconstrained to adjust in angle and forward translation as the seat pan moves relative to the frame subassembly. In embodiments, the seat pan is pivotably attached to be movable between a use position for seating and a use position for under seat access.