Vehicle occupant restraint device

Patent metadata

Field	Value
Publication number	US-11731539-B2
Application number	US-202217578863-A
Country	US
Kind code	B2
Filing date	Jan 19, 2022
Priority date	Feb 25, 2021
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A vehicle occupant restraint device includes: a seat cushion on which an occupant is seated; a seat back that is provided on a seat rear side of the seat cushion so as to be pivotable in a seat front-rear direction and that supports a back of the occupant; an ottoman provided on a seat front side of the seat cushion so as to be pivotable in a seat up-down direction; and a fabric restraint member that is extended in a width direction of the ottoman to restrain a lower limb including a knee of the occupant when at least the ottoman is set in a raised position and the seat back takes a comfortable posture.

First claim

What is claimed is:

1. A vehicle occupant restraint device comprising:
a seat cushion;
a seat back that is provided on a seat rear side of the seat cushion so as to be pivotable in a seat front-rear direction;
an ottoman provided on a seat front side of the seat cushion so as to be pivotable in a seat up-down direction; and
a fabric restraint member that is extended in a width direction of the ottoman to restrain a lower limb including a knee of the occupant when at least the ottoman is set in a raised position and the seat back takes a comfortable posture,
wherein the fabric restraint member is fixed with a plurality of fixtures provided on at least opposite side portions of the ottoman in the width direction, the fixtures being spaced apart from each other in the seat front-rear direction.

2. The vehicle occupant restraint device according to claim 1 , wherein the fabric restraint member is configured to restrain a knee of an occupant.

3. The vehicle occupant restraint device according to claim 1 , wherein the fixtures are each configured such that a first mold portion and a second mold portion are detachably fitted with each other.

4. The vehicle occupant restraint device according to claim 1 , wherein the fabric restraint member has a function of improving comfort during sleep.

5. The vehicle occupant restraint device according to claim 1 , further comprising a rear load transmission member that transmits a load input from the occupant to the ottoman to a seat frame supporting the seat cushion at a time of a frontal collision of a vehicle.

6. The vehicle occupant restraint device according to claim 5 , wherein one end of the rear load transmission member is disposed close to a fixing point of the fabric restraint member.

7. The vehicle occupant restraint device according to claim 1 , further comprising a front load transmission member that transmits a load input from the occupant to the ottoman to a floor portion of a vehicle cabin at a time of a frontal collision of a vehicle.

8. The vehicle occupant restraint device according to claim 1 , further comprising a toe restraint member that projects from a seat front side of the ottoman to a seat upper side to restrain a toe of the occupant when at least the ottoman is set in the raised position and the seat back takes a comfortable posture.

9. The vehicle occupant restraint device according to claim 8 , wherein the toe restraint member is configured such that a length of the toe restraint member is electrically adjustable in accordance with a size of a foot of the occupant.

10. The vehicle occupant restraint device according to claim 8 , wherein the toe restraint member has a shape in which a toe portion of the toe restraint member is raised upright in advance.

11. The vehicle occupant restraint device according to claim 1 , wherein the fabric restraint member is extended in the width direction of the ottoman and the seat cushion, and is fixed to both sides of a seat frame supporting the ottoman and the seat cushion in the width direction, respectively.

12. The vehicle occupant restraint device according to claim 1 , wherein each fixture of the plurality of fixtures has a first mold portion and a second mold portion fitted to the first mold portion.

13. The vehicle occupant restraint device according to claim 12 , further comprising a comfort mode transition switch configured to raise the ottoman and tilt the seatback rearward to at least a predetermined angle when the comfort mode transition switch is operated.

14. The vehicle occupant restraint device according to claim 13 , wherein, when the first mold portion is not fixed to the second mold portion and the comfort mode transition switch is not operated, a voice alert is generated.

15. The vehicle occupant restraint device according to claim 13 , wherein, when the comfort mode transition switch is operated and it is detected that an occupant is seated in a rear seat, operation of the ottoman and the seat back is stopped.

16. A vehicle occupant restraint device comprising:
a seat cushion;
a seat back that is provided on a seat rear side of the seat cushion so as to be pivotable in a seat front-rear direction;
an ottoman provided on a seat front side of the seat cushion so as to be pivotable in a seat up-down direction; and
a fabric restraint member that is extended in a width direction of at least the ottoman to restrain a lower limb including a knee of the occupant when at least the ottoman is set in a raised position and the seat back takes a comfortable posture,
wherein the fabric restraint member is fixed with a plurality of fixtures provided on a floor portion of a vehicle cabin that is located on both sides of the ottoman and the seat cushion in the width direction in a plan view, the fixtures being spaced apart from each other in the seat front-rear direction.

17. The vehicle occupant restraint device according to claim 16 , wherein the fabric restraint member is extended in the width direction of the ottoman and the seat cushion, and is fixed to respective portions of the floor portion of the vehicle cabin that are located on both sides of the ottoman and the seat cushion in the width direction in a plan view.

18. A vehicle occupant restraint device comprising:
a seat cushion;
a seat back that is provided on a seat rear side of the seat cushion so as to be pivotable in a seat front-rear direction;
an ottoman provided on a seat front side of the seat cushion so as to be pivotable in a seat up-down direction;
a fabric restraint member that is extended in a width direction of the ottoman to restrain a lower limb including a knee of the occupant when at least the ottoman is set in a raised position and the seat back takes a comfortable posture; and
a toe restraint member that projects from a seat front side of the ottoman to a seat upper side when at least the ottoman is set in the raised position and the seat back takes a comfortable posture, the toe restraint member is configured such that a length of the toe restraint member is electrically adjustable.

Assignees

• Toyota Motor Co Ltd

Inventors

• Ohno Mitsuyoshi
• Tomita Hiroyuki

Classifications

• B60N2/0244

  with logic circuits · CPC title

• B60N2/42 Primary

  the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats (for protecting children B60N2/26; arm-rests B60N2/75; head-rests B60N2/888) · CPC title

• B60R22/001 Primary

  Knee, leg or head belts · CPC title

• B60N2/995

  Lower-leg-rests, e.g. calf-rests · CPC title

• B60N2/4221 Primary

  due to impact coming from the front · CPC title