Vehicle seat

Abstract

A vehicle seat 1 includes a seat unit 10 , a lift-up unit 50 and a long-sliding unit 200 . The lift-up unit 50 moves the seat unit 10 between interior and exterior of a vehicle via a door opening portion D 2 that corresponds to a passenger seat position. The long-sliding unit 200 moves the seat unit 10 between a driver's seat position and the fellow passenger seat position. The lift-up unit 50 moves the seat unit 10 downward when the seat unit 10 is positioned at the driver's seat position, so that the seat unit 10 is located at a suitable position for driving.

1 . A vehicle seat, comprising: 
 a seat;    a seat rotating device that can rotate the seat at a passenger seat position between a position where the seat faces the front side of a vehicle and a position where the seat faces a door opening portion adjacent to the passenger seat position;    a long-sliding unit that can slide the seat and the seat rotating device between a driver's seat position and the passenger seat position; and    a rotation and sliding synchronizing device for sliding the seat at the passenger seat position in a longitudinal direction of the vehicle in synchronism with the rotating motion of the seat by the seat rotating device.    
     
     
         2 . A vehicle seat according to  claim 1 , wherein when the seat is rotated toward the direction of the door opening portion, the rotation and sliding synchronizing device may slide the seat to some degree toward the forward direction of the vehicle in synchronism with the rotating motion, and wherein when the seat is rotated toward the forward direction of the vehicle, the rotation and sliding synchronizing device may slide the seat to some degree toward the rearward direction of the vehicle in synchronism with the rotating motion.  
     
     
         3 . A vehicle seat, comprising: 
 a seat;    a seat rotating device that can rotate the seat at a passenger seat position between a position where the seat faces the front side of a vehicle and a position where the seat faces a door opening portion adjacent to the passenger seat position;    a long-sliding unit that can slide the seat and the seat rotating device between a driver's seat position and the passenger seat position;    a seat moving device that permit to move the seat at the passenger seat position between the passenger seat position and the exterior of the vehicle via the door opening portion; and    a seat position adjusting device that can adjust a height of the seat at the driver's seat position.    
     
     
         4 . A vehicle seat according to  claim 3 , wherein the seat moving device is used as the seat position adjusting device.  
     
     
         5 . A vehicle seat according to any one of  claims 1  to  4 , wherein the long-sliding unit comprises a longitudinal long-sliding unit that can slide the seat and the seat rotating device in a longitudinal direction of the vehicle.  
     
     
         6 . A vehicle seat according to any one of  claims 1  to  4 , wherein the long-sliding unit comprises a lateral long-sliding unit that can slide the seat and the seat rotating device in a crosswise direction of the vehicle.  
     
     
         7 . A vehicle seat according to any one of  claims 1  to  4 , wherein the long-sliding unit comprises a longitudinal long-sliding unit that can slide the seat and the seat rotating device in a longitudinal direction of the vehicle and has a lateral long-sliding unit that can slide the seat and the seat rotating device in a crosswise direction of the vehicle.  
     
     
         8 . A vehicle seat according to  claim 6  or  8 , wherein the longitudinal long-sliding unit is inclined from the rear side of the vehicle to the front side of the vehicle.  
     
     
         9 . A vehicle seat according to any one of  claims 1  to  4 , wherein the long-sliding unit comprises an oblique long-sliding unit that can slide the seat and the seat rotating device between the driver's seat position and a passenger seat position diagonally behind the driver's seat position.  
     
     
         10 . A vehicle seat according to  claim 9 , further comprising a retracting device that can retract a rear seat positioned behind the driver's seat position and an assistant driver's seat positioned beside the driver's seat position to a position where they do not interfere with the seat when the seat is slid by means of the oblique long-sliding unit.  
     
     
         11 . A vehicle seat according to  claim 1  or  2 , further comprising a short-slide device that can slide the seat to some degree in a longitudinal direction of the vehicle, wherein the rotation and sliding synchronizing device may synchronize the rotating motion of the seat by the seat rotating device and the sliding motion of the seat by the short-slide device.  
     
     
         12 . A vehicle seat according to  claim 1  or  2 , wherein the seat rotating device has a driving device for rotating the seat, wherein the rotation and sliding synchronizing device has a driving device for sliding the seat in a longitudinal direction of the vehicle, and wherein the rotation and sliding synchronizing device may synchronously control the driving device of the short-slide device and the driving device of the seat rotating device.  
     
     
         13 . A vehicle seat according to  claim 1  or  2 , wherein the long-sliding unit has a driving device for sliding the seat, wherein the seat rotating device has a driving device for rotating the seat, and wherein the rotation and sliding synchronizing device may synchronously control the driving device of the long-sliding unit and the driving device of the seat rotating device.  
     
     
         14 . A vehicle seat according to any one of claims  1 ,  2  and  11  to  13 , wherein the rotation and sliding synchronizing device may synchronize the rotating motion of the seat and the sliding motion of the seat only within a rotation region between a position in which the seat is rotated from a position where the seat faces the front side of the vehicle toward the door opening portion by a predetermined angle and a position where the seat faces the door opening portion.  
     
     
         15 . A vehicle seat according to any one of claims  1 ,  2  and  11  to  14 , wherein the seat rotating device has a seat moving device that can move the seat between the passenger seat position and the exterior of the vehicle via the door opening portion.  
     
     
         16 . A vehicle seat according to  claim 15 , comprising a seat position adjusting device that can adjust a height of the seat at the driver's seat position.  
     
     
         17 . A vehicle seat according to any one of claims  3 ,  4 ,  15  and  16 , wherein the seat moving device can raise or lower the seat while moving it in a longitudinal direction as seen from a person seated on the seat, can lower the seat to a position near the ground surface while moving it from the passenger seat position to the exterior of the vehicle via the door opening portion, and can move the seat to the passenger seat position via the opening portion while raising it from the position near the ground surface in the exterior of the vehicle.  
     
     
         18 . A vehicle seat according to any one of claims  3 ,  4 ,  15  and  16 , wherein the seat moving device can raise or lower the seat while moving it in a longitudinal direction as seen from a person seated on the seat, can lower the seat to a position near the ground surface while moving it from the passenger seat position to the exterior of the vehicle via the door opening portion, and can move the seat to the passenger seat position via the opening portion while raising it from the position near the ground surface in the exterior of the vehicle, and wherein the seat moving device is used as the seat position adjusting device.  
     
     
         19 . A vehicle seat according to any one of claims  3 ,  4  and  14  to  18 , wherein the seat moving device has a four-bar linkage mechanism.  
     
     
         20 . A vehicle seat according to any one of claims  3 ,  4  and  14  to  18 , wherein the seat moving device is a slide moving device.  
     
     
         21 . A vehicle seat according to any one of claims  3 ,  4  and  14  to  20 , comprising a connecting device that can separably connects the seat and the seat moving device.  
     
     
         22 . A vehicle seat according to  claim 21 , wherein the seat is provided with foldable wheels.  
     
     
         23 . A vehicle seat, comprising: 
 a seat;    a seat rotating device that can rotate the seat between a position where the seat faces the front side of a vehicle and a position where the seat faces a door opening portion adjacent to a passenger seat position;    a long-sliding unit that can slide the seat and the seat rotating device between a driver's seat position and the passenger seat position; and    a rotation and sliding synchronizing device for sliding the seat to some degree in a longitudinal direction of the vehicle in synchronism with the rotating motion of the seat by the seat rotating device,    wherein when a person get out of the vehicle, the seat is slid from the driver's seat position to the passenger seat position by means of the long-sliding unit, and is then rotated from the position where it faces the front side of the vehicle to the position where it faces the door opening portion while sliding to some degree toward the front side of the vehicle by means of the seat rotating device and the rotation and sliding synchronizing device, and wherein when the person get in the vehicle, the seat is slid to some degree toward the rear side of the vehicle while rotating from the position where it faces the door opening portion to the position where it faces the front side of the vehicle by means of the seat rotating device and the rotation and sliding synchronizing device, and then slides from the passenger seat position to the driver's seat position by means of the long-sliding unit.    
     
     
         24 . A vehicle seat, comprising: 
 a seat;    a seat rotating device that can rotate the seat between a position where the seat faces the front side of a vehicle and a position where the seat faces a door opening portion;    a long-sliding unit that can slide the seat and the seat rotating device between a driver's seat position and a passenger seat position adjacent to the door opening portion; and    a seat moving device that can raise or lower the seat while moving it in a longitudinal direction as seen from a person seated on the seat,    wherein when the person is to get out of the vehicle, the seat is slid from the driver's seat position to the passenger seat position by the long-sliding unit and is raised while moving toward the rear side of the vehicle by the seat moving device, and is then lowered to a position near the ground surface while moving to the exterior of the vehicle via the door opening portion by the seat moving device after it is rotated from a position where it faces the front side of the vehicle to a position where it faces the door opening portion by the rotating device, and wherein when the person is to get in the vehicle, the seat is moved to the passenger seat position via the door opening portion while raising from the position near the ground surface in the exterior of the vehicle by the seat moving device, and is then lowered to a position near a vehicle floor while moving toward the front side of the vehicle by the seat moving device and is slid from the passenger seat position to the driver's seat position by the long-sliding unit after it is rotated to the position where it faces the front side of the vehicle by means of the rotating device.