Vehicle seat

Patent metadata

Field	Value
Publication number	US-10414293-B2
Application number	US-201815868405-A
Country	US
Kind code	B2
Filing date	Jan 11, 2018
Priority date	Jan 18, 2017
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A vehicle seat including a seat cushion including a cushion body that supports buttocks of an occupant, and cushion side portions disposed on both seat width direction sides of the cushion body, a seatback including a back body that supports a back of the occupant, and back side portions disposed on both seat width direction sides of the back body, and an adjustment mechanism including at least one of a cushion adjustment mechanism that on actuation moves the cushion body in a seat up-down direction with respect to the cushion side portions and pivots the cushion body about an axis running along the seat width direction, or a back adjustment mechanism that on actuation moves the back body in a seat front-rear direction with respect to the back side portions and pivots the back body about an axis running along the seat width direction.

First claim

What is claimed is:

1. A vehicle seat comprising:
a seat cushion including a cushion body that supports buttocks of an occupant, and cushion side portions disposed on both seat width direction sides of the cushion body;
a seatback including a back body that supports a back of the occupant, and back side portions disposed on both seat width direction sides of the back body; and
an adjustment mechanism including at least one of:
a cushion adjustment mechanism that, on actuation, moves the cushion body in a seat up-down direction with respect to the cushion side portions and pivots the cushion body about an axis running along the seat width direction, or

a back adjustment mechanism that, on actuation, moves the back body in a seat front-rear direction with respect to the back side portions and pivots the back body about an axis running along the seat width direction, wherein:
the cushion adjustment mechanism includes:
a pair of front links, each link having one end portion rotatably coupled to a frame of the seat cushion and having another end portion rotatably coupled to the cushion body, and
a pair of rear link mechanisms, each rear link mechanism comprising a multi-bar linkage disposed further toward a seat rear side than the pair of front links, and including a pair of first rear links and a pair of second rear links having respective one end portions rotatably coupled to each other, with another end portions of the pair of first rear links being rotatably coupled to the frame of the seat cushion and another end portions of the pair of second rear links being rotatably coupled to the cushion body; and

the back adjustment mechanism includes:
a pair of upper links having one end portion rotatably coupled to a frame of the seatback and having another end portion rotatably coupled to the back body, and
a pair of lower link mechanisms, each lower link mechanism comprising a multi-bar linkage disposed further to a seat lower side than the pair of upper links, and including a pair of first lower links and a pair of second lower links having respective one end portions rotatably coupled to each other, with another end portions of the pair of first lower links being rotatably coupled to the frame of the seatback and another end portions of the pair of second lower links being rotatably coupled to the back body.

2. The vehicle seat of claim 1 , further comprising a controller that actuates the at least one of the cushion adjustment mechanism or the back adjustment mechanism such that the at least one of the cushion adjustment mechanism or the back adjustment mechanism adopts a mode selected from a plurality of pre-stored modes.

3. The vehicle seat of claim 2 , wherein:
the adjustment mechanism includes both the cushion adjustment mechanism and the back adjustment mechanism; and
in cases in which either one or both of the cushion adjustment mechanism and the back adjustment mechanism are not in a state corresponding to a baseline mode when a mode other than the baseline mode has been selected from the plurality of modes, the controller is configured to actuate the one or both of the cushion adjustment mechanism and the back adjustment mechanism so as to adopt the baseline mode state, and then actuates the one or both of the cushion adjustment mechanism and the back adjustment mechanism so as to adopt a state corresponding to the selected mode.

4. The vehicle seat of claim 2 , wherein the controller is configured to:
move the cushion body in a seat upward direction and then pivots the cushion body in cases in which the cushion body is both moved in the seat upward direction and pivoted by the cushion adjustment mechanism;
pivot the cushion body and then moves the cushion body in a seat downward direction in cases in which the cushion body is both moved in the seat downward direction and pivoted by the cushion adjustment mechanism;
move the back body in a seat front direction and then pivots the cushion body in cases in which the back body is both moved in the seat front direction and pivoted by the back adjustment mechanism; and
pivot the back body and then moves the back body in a seat rear direction in cases in which the back body is both moved in the seat rear direction and pivoted by the back adjustment mechanism.

5. The vehicle seat of claim 2 , further comprising a reclining mechanism that on actuation pivots the seatback with respect to the seat cushion, wherein:
in cases in which the at least one of the cushion adjustment mechanism or the back adjustment mechanism is not in a state corresponding to a baseline mode when there has been an actuation request for the reclining mechanism, the controller is configured to actuate the at least one of the cushion adjustment mechanism or the back adjustment mechanism so as to adopt the baseline mode state before actuating the reclining mechanism.

6. A vehicle seat comprising:
a seat cushion including a cushion body that supports buttocks of an occupant, and cushion side portions disposed on both seat width direction sides of the cushion body;
a seatback including a back body that supports a back of the occupant, and back side portions disposed on both seat width direction sides of the back body; and
an adjustment mechanism including at least one of:
a cushion adjustment mechanism that is capable of moving the cushion body in a seat up-down direction with respect to the cushion side portions and is capable of pivoting the cushion body about an axis running along the seat width direction, or

a back adjustment mechanism that is capable of moving the back body in a seat front-rear direction with respect to the back side portions and is capable of pivoting the back body about an axis running along the seat width direction, wherein:
the cushion adjustment mechanism includes:
a pair of front links, each link having one end portion rotatably coupled to a frame of the seat cushion and having another end portion rotatably coupled to the cushion body, and
a pair of rear link mechanisms, each rear link mechanism comprising a multi-bar linkage disposed further toward a seat rear side than the pair of front links, and including a pair of first rear links and a pair of second rear links having respective one end portions rotatably coupled to each other, with another end portions of the pair of first rear links being rotatably coupled to the frame of the seat cushion and another end portions of the pair of second rear links being rotatably coupled to the cushion body; and

the back adjustment mechanism includes:
a pair of upper links having one end portion rotatably coupled to a frame of the seatback and having another end portion rotatably coupled to the back body, and
a pair of lower link mechanisms, each lower link mechanism comprising a multi-bar linkage disposed further to a seat lower side than the pair of upper links, and including a pair of first lower links and a pair of second lower links having respective one end portions rotatably coupled to each other, with another end portions of the pair of first lower links being rotatably coupled to the frame of the seatback and another end portions of the pair of second lower links being rotatably coupled to the back body.

7. A vehicle seat comprising:
a seat cushion including a cushion body that supports buttocks of an occupant, and cushion side portions disposed on both seat width direction sides of the cushion body;
a seatback including a back body that supports a back of the occupant, and back side portions disposed on both seat width direction sides of the back body;
an adjustment mechanism including at least one of:
a cushion adjustment mechanism that, on actuation, moves the cushion body in a seat up-down direction with respect to the cushion side portions and p

Assignees

• Nhk Spring Co Ltd

Inventors

• Sasaki Yoshitaka
• Honma Akira
• Kim Donhyon
• Tanaka Daisuke

Classifications

• B60N2002/247

  to support passengers in a half-standing position · CPC title

• B60N2/3086

  Disappearing in a recess of the cushion · CPC title

• B60N2/3084

  Disappearing in a recess of the back-rest · CPC title

• B60N2/2222

  the back-rest having two or more parts · CPC title

• B60N2/161

  Rods · CPC title