CPC B60N 2/14 (2013.01) [B60N 2/06 (2013.01)] | 8 Claims |
1. A seat rotating device capable of rotating a seat body between a seating position where the seat body faces a front of a car and a getting-on and -off position where the seat body faces an opening of a door of the car, the seat rotating device comprising:
a base plate fixed to a floor side;
a rotating plate fixed to a lower surface of the seat body so as not to rotate relative to the seat body;
a coupling unit that couples the base plate and the rotating plate such that the rotating plate is rotatable with respect to the base plate between the seating position and the getting-on and -off position; and
a drive unit that drives the coupling unit,
wherein the coupling unit includes:
a link that couples the base plate and the rotating plate;
a guide that is provided on the base plate and has a linearly extending shape; and
a moving body that is movable along the guide and supports the rotating plate such that the rotating plate is relatively rotatable with respect to the moving body,
the drive unit is able to move the moving body along the guide,
the link includes:
a fixing end fixed to the base plate so as to be relatively rotatable with respect to the base plate; and
a rotating end that is rotatable with respect to the base plate about the fixing end as a rotation center and is fixed to the rotating plate so as to be relatively rotatable with respect to the rotating plate,
the guide has a shape extending linearly along a diameter of a virtual circle, the virtual circle having a length twice a distance between the fixing end and the rotating end as its radius, and having the fixing end as its center, and
the moving body moves a part of the rotating plate along the guide, while relatively rotating the part with respect to the moving body in an identical direction to a direction in which the rotating plate rotates with respect to the rotating end when the rotating plate moves from the seating position to the getting-on and -off position, the part being spaced apart from a part of the rotating plate that is fixed to the rotating end.
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