A seat driving device for a seat including a first position adjusting mechanism and a second position adjusting mechanism, wherein a first clutch mechanism is configured to set an output shaft and an input shaft of the first clutch mechanism to be in a connection state regularly and to maintain the output shaft and the input shaft of the first clutch mechanism in the connection state as an first operation member corresponding to the first position adjusting mechanism is operated, and wherein a second clutch mechanism is configured to set an output shaft and an input shaft of the second clutch mechanism to be in a disconnection state regularly and to switch the output shaft and the input shaft of the second clutch mechanism to a connection state as a second operation member corresponding to the second position adjusting mechanism is operated.

A vehicle seat is disclosed. The vehicle seat includes reclining lock mechanisms for releasably locking a seat back, a first releasing mechanism for unlocking the reclining lock mechanisms and causing the seat back to be brought to a condition where the seat back is allowed to be pivoted forward and rearward, the first releasing mechanism including a collapsible link bar member 70, a braking link 71 having a laterally projecting induction pin 72, a first link plate 73, and a first operating lever 7, a tipping-up lock mechanism for releasably locking a seat cushion, the tipping-up lock mechanism including cutout teeth 52a to 52c provided at the seat cushion, and a latch 80 and a cam member 81 which are supported to the seat back, and a second releasing mechanism for unlocking the tipping-up lock mechanism and causing the seat cushion to be brought to a condition where the seat cushion is allowed to be pivoted, the second releasing mechanism including a recess portion 80d formed in the latch 80 for allowing the cam member 81 to be swung up, a second link plate 82, and a second operating lever 8.

A vehicle seat is disclosed. The vehicle seat includes reclining lock mechanisms for releasably locking a seat back, a first releasing mechanism for unlocking the reclining lock mechanisms and causing the seat back to be brought to a condition where the seat back is allowed to be pivoted forward and rearward, the first releasing mechanism including a collapsible link bar member 70, a braking link 71 having a laterally projecting induction pin 72, a first link plate 73, and a first operating lever 7, a tipping-up lock mechanism for releasably locking a seat cushion, the tipping-up lock mechanism including cutout teeth 52a to 52c provided at the seat cushion, and a latch 80 and a cam member 81 which are supported to the seat back, and a second releasing mechanism for unlocking the tipping-up lock mechanism and causing the seat cushion to be brought to a condition where the seat cushion is allowed to be pivoted, the second releasing mechanism including a recess portion 80d formed in the latch 80 for allowing the cam member 81 to be swung up, a second link plate 82, and a second operating lever 8.

A handle assembly for a seat of a vehicle includes an up/down handle, a recline handle, and a finger guard. The up/down handle is configured to adjust a vertical position of a seat bottom when the up/down handle is rotated relative to the seat about a first pivot axis. The recline handle is configured to allow an angle of a seat back to be adjusted when the recline handle is rotated relative to the seat about a second pivot axis. The finger guard is configured to cover a gap between the up/down handle and the recline handle to prevent an occupant in the seat from inserting a finger into the gap. The finger guard is separate from and attached to the recline handle and is configured to rotate about a third pivot axis relative to the recline handle independent of rotation of the recline handle about the second pivot.

A handle assembly for a seat of a vehicle includes an up/down handle, a recline handle, and a finger guard. The up/down handle is configured to adjust a vertical position of a seat bottom when the up/down handle is rotated relative to the seat about a first pivot axis. The recline handle is configured to allow an angle of a seat back to be adjusted when the recline handle is rotated relative to the seat about a second pivot axis. The finger guard is configured to cover a gap between the up/down handle and the recline handle to prevent an occupant in the seat from inserting a finger into the gap. The finger guard is separate from and attached to the recline handle and is configured to rotate about a third pivot axis relative to the recline handle independent of rotation of the recline handle about the second pivot.

A weight sensing mechanism for an aircraft seat pan configured to adjust seat pan recline force and including a gas spring arranged between a fixed seat frame member and a movable seat pan member, the gas spring arranged to compress as the seat pan reclines in response to a load on the seat pan, and unloads upon removal of the load on the seat pan to assist in returning the seat pan to upright, and a helper spring positioned forward of and coaxially with the gas spring arranged to deflect under any load on the seat pan. A recline-capable seat pan assembly including a passenger body weight sensing mechanism.

The purpose of the present invention is to improve the ride quality of an automobile or other vehicle at low cost. A vehicle seat is provided with a seat cushion for supporting the buttocks of a rider and a seat back for supporting the back of the rider. At a substantially central position in the width direction of the seat back in a location where the back of the rider is to be supported, a recessed part or an opening extending in the vertical direction is formed.

The purpose of the present invention is to improve the ride quality of an automobile or other vehicle at low cost. A vehicle seat is provided with a seat cushion for supporting the buttocks of a rider and a seat back for supporting the back of the rider. At a substantially central position in the width direction of the seat back in a location where the back of the rider is to be supported, a recessed part or an opening extending in the vertical direction is formed.

A motor vehicle seat including a sitting part including a base panel bordered at least partially by a side panel, the sitting part configured to be mounted on the vehicle floor panel in two different positions of: a first accommodating position, in which the side panel extends in a first direction, at the rear of the base panel and forms a portion of the seatback of the seat, and a second reversed position, in which the side panel extends in front of the base panel, in a second direction opposite the first. The sitting part further includes an opening configured for passage of a base for securing a safety belt when the sitting part is in the accommodating position. A motor vehicle can include the seat.

A motor vehicle seat including a sitting part including a base panel bordered at least partially by a side panel, the sitting part configured to be mounted on the vehicle floor panel in two different positions of: a first accommodating position, in which the side panel extends in a first direction, at the rear of the base panel and forms a portion of the seatback of the seat, and a second reversed position, in which the side panel extends in front of the base panel, in a second direction opposite the first. The sitting part further includes an opening configured for passage of a base for securing a safety belt when the sitting part is in the accommodating position. A motor vehicle can include the seat.