Vehicle seat

Patent metadata

Field	Value
Publication number	US-10906440-B2
Application number	US-201916414045-A
Country	US
Kind code	B2
Filing date	May 16, 2019
Priority date	Jul 18, 2018
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A vehicle seat includes: a seating part that constitutes the vehicle seat; a support member that rotatably supports a portion of the seating part; an elastic member having a first end and a second end, the first end being attached to a movable portion of the seating part which is capable of rotating about the support member and the second end being attached to the seat frame; and an attenuation device that attenuates a motion of the movable portion when the movable portion moves from a seated state with a load applied, back to a normal state in which the applied load is removed. The movable portion of the seating part may include a base member, a slab member provided on the base member, and a surface member that covers the slab member.

First claim

What is claimed is:

1. A vehicle seat having a seat frame, comprising:
a seating part that constitutes the vehicle seat;
a support member that rotatably supports a portion of the seating part;
an elastic member having a first end and a second end, the first end being attached to a movable portion of the seating part that is capable of rotating about the support member and the second end being attached to the seat frame; and
an attenuation device that attenuates a motion of the movable portion when the movable portion moves from a seated state with a load applied, back to a normal state in which the applied load is removed,
wherein the movable portion of the seating part comprises a base member, a slab member provided on the base member, and a surface member that covers the slab member.

2. The vehicle seat according to claim 1 , wherein the base member is made of a resin material.

3. The vehicle seat according to claim 1 , wherein the base member is located under the slab member except for a front portion of the slab member.

4. The vehicle seat according to claim 2 , wherein the base member is located under the slab member except for a front portion of the slab member.

5. The vehicle seat according to claim 1 , wherein the movable portion of the seating part and the support member are located and arranged so as to allow the movable portion to move in a vertical direction.

6. A vehicle seat having a seat frame, comprising:
a seating part that constitutes the vehicle seat;
a support member that rotatably supports a portion of the seating part;
an elastic member having a first end and a second end, the first end being attached to a movable portion of the seating part that is capable of rotating about the support member and the second end being attached to the seat frame; and
an attenuation device that attenuates a motion of the movable portion when the movable portion moves from a seated state with a load applied, back to a normal state in which the applied load is removed,
wherein a bank portion is provided at both sides of the movable portion and the bank portion is higher than a surface layer of the movable portion.

7. The vehicle seat according to claim 6 , wherein the bank portion is a structure including a fixed frame.

8. A vehicle seat having a seat frame, comprising:
a seating part that constitutes the vehicle seat;
a support member that rotatably supports a portion of the seating part;
an elastic member having a first end and a second end, the first end being attached to a movable portion of the seating part that is capable of rotating about the support member and the second end being attached to the seat frame; and
an attenuation device that attenuates a motion of the movable portion when the movable portion moves from a seated state with a load applied, back to a normal state in which the applied load is removed,
wherein the elastic member has a structure that exhibits elasticity which changes in a non-linear manner relative to a displacement of the movable portion.

9. The vehicle seat according to claim 8 , wherein the elastic member is structured so as to be placed in a different orientation according to a movement of the movable portion so that a force applied to the elastic member changes in a non-linear manner.

Assignees

• Tachi S Co

Inventors

• Takano Jun

Classifications

• B60N2/3047 Primary

  the cushion being hinged at the back-rest · CPC title

• B60N2/7047 Primary

  Springs · CPC title

• B60N2/68

  Seat frames · CPC title