Vehicle seat device
AssigneesToyota Boshoku Kabushiki Kaisha, Mazda Motor Corporation
InventorsYasuhiko Maekawa, Shotaro Aratake, Ken Yoshioka
Life of this patent
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Abstract
A vehicle seat device includes a seat main body having a seat cushion and a seatback, and a tilt device configured to exert a tilt function to tilt the seatback towards a seat front side. The tilt device includes an electric motor and a spring. The electric motor is configured to exert a rotational force to rotationally displace the seatback. The spring is configured to exert a resilient force to rotationally displace the seatback towards the seat front side.
Claims10
A vehicle seat device configured to be mounted to a vehicle comprising:
- a seat main body comprising a seat cushion and a seatback rotatable about a lower end of the seatback;
- and
- a tilt device comprising an electric motor and a spring, the electric motor being configured to exert a rotational force to rotationally displace the seatback, and the spring being configured to exert a resilient force to rotationally displace the seatback towards a seat front side;
- wherein the tilt device is configured to exert a tilt function to tilt the seatback towards the seat front side by using the electric motor and the spring,
- wherein, when the tilt function is active, the tilt device rotationally displaces the seatback towards the seat front side to a given first position by driving the electric motor and then rotationally displaces the seatback towards the seat front side beyond the first position to a tilt state by using a force of the spring, and
- wherein the given first position is a foremost location of the seatback in the seat front side within a possible range of the rotational displacement of the seatback by the electric motor.
A vehicle seat device configured to be mounted to a vehicle comprising:
- a seat main body comprising a seat cushion and a seatback rotatable about a lower end of the seatback;
- and
- a tilt device comprising an electric motor and a spring, the electric motor being configured to exert a rotational force to rotationally displace the seatback, and the spring being configured to exert a resilient force to rotationally displace the seatback towards a seat front side;
- wherein the tilt device is configured to exert a tilt function to tilt the seatback towards the seat front side by using the electric motor and the spring,
- wherein, when the tilt function is active, the electric motor is driven to rotationally displace the seatback towards the seat front side to a given first position and the spring is urged to rotationally displace the seatback towards the seat front side beyond the first position to a tilt state, and
- wherein the given first position is a foremost location of the seatback in the seat front side within a possible range of the rotational displacement of the seatback by the electric motor.
A vehicle seat device configured to be mounted to a vehicle comprising:
- a seat main body comprising a seat cushion and a seatback rotatable about a lower end of the seatback;
- and
- a tilt device comprising an electric motor and a spring, the electric motor being configured to exert a rotational force to rotationally displace the seatback, and the spring being configured to exert a resilient force to rotationally displace the seatback towards a seat front side,
- wherein the tilt device is configured to exert a tilt function to tilt the seatback towards the seat front side by using the electric motor and the spring, and
- wherein a possible range of the rotational displacement of the seatback using the force of the spring by the tilt device extends more towards the seat front side than a possible range of the rotational displacement of the seatback caused by driving the electric motor by the tilt device.
Dependencies are inferred from the claim text.