Vehicle seat

Patent metadata

Field	Value
Publication number	US-9566880-B2
Application number	US-201314041127-A
Country	US
Kind code	B2
Filing date	Sep 30, 2013
Priority date	Oct 23, 2012
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A vehicle seat includes a stopping structure that stops forward tilting rotation of a seatback between the seatback and a base on a floor. The stopping structure includes a stopping portion provided on one of the seatback or the base, and a stopper that is provided in a state supported in a cantilevered manner on the other of the seatback or the base, and that extends to a position overlapping with the stopping portion in a seat width direction. The stopping structure is configured to stop the forward tilting rotation of the seatback by abutment of the stopping portion and the stopper. A deformation inhibiting member that minimizes deformation in the seat width direction from the stopper abutting against the stopping portion following forward tilting rotation of the seatback, is provided on the other of the seatback or the base.

First claim

What is claimed is:

1. A vehicle seat comprising a stopping structure that stops forward tilting rotation of a seatback between the seatback and a base on a floor, the stopping structure including:
a stopping portion provided on one of the seatback and the base;
a stopper, having a leg portion, that is provided on the other of the seatback and the base and that extends to a position overlapping with the stopping portion in a seat width direction, the stopping structure being configured to stop the forward tilting rotation of the seatback by abutment of the stopping portion and the stopper; and
a deformation inhibiting member that is fixed to the other of the seatback and the base to prevent rotation of the deformation inhibiting member relative to the other of the seatback and the base, the deformation inhibiting member being configured to minimize deformation in the seat width direction initiated from the abutment of the stopper against the stopping portion following forward tilting rotation of the seatback, the deformation inhibiting member including:
a stopping surface that extends in the seat width direction and that is configured to stop a forward tilting rotation of the stopper at an engagement position where the stopping surface is brought into surface-abutment with the leg portion of the stopper; and
a deformation inhibiting surface that extends in a seat front-rear direction that is configured to minimize the deformation of the stopper in the seat width direction by the deformation inhibiting surface being brought into surface-abutment with the leg portion of the stopper upon forward tilting rotation of the seatback, wherein

the leg portion of the stopper is rotatable in a direction away from the stopping surface and the deformation inhibiting surface so as to disengage the surface-abutment of the leg portion of the stopper with the stopping surface and the deformation inhibiting surface.

2. The vehicle seat according to claim 1 , wherein
the stopping portion is provided on the seatback, and the stopper is provided pivotally connected to the base,
the stopper is configured to receive the forward tilting rotation of the seatback from the abutment of the stopping portion and to stop the forward tilting rotation of the seatback by the surface-abutment of the stopping surface, and
the stopper is further configured to be placed in a state that allows the forward tilting rotation of the seatback, by a retraction rotation of the stopper and a release of the surface-abutment with the stopping surface.

3. The vehicle seat according to claim 2 , wherein the deformation inhibiting member further includes an inclined guide surface that inhibits interference with a rotation of the stopper in the seat front-rear direction to a position where the stopper surface-abuts against the stopping surface and guides the stopper to the surface-abutment with the deformation inhibiting surface and that relieves interference with the leg portion of the stopper in the seat width direction.

4. The vehicle seat according to claim 1 , wherein the deformation inhibiting member further includes a groove provided at a corner portion of the deformation inhibiting member between the stopping surface and the deformation inhibiting surface.

5. The vehicle seat according to claim 1 , wherein the deformation inhibiting member is non-rotatably fixed to the other of the seatback and the base.

6. A vehicle seat comprising:
a base;
a seatback rotatably connected to the base;
a recliner connected to the seatback and the base that allows adjustment of an angle defined by the seatback and the base; and
a stopping structure that stops forward tilting rotation of the seatback between the seatback and the base, the stopping structure including:
a stopping portion provided on one of the seatback and the base;
a stopper, having a leg portion, that is provided on the other of the seatback and the base and that extends to a position overlapping with the stopping portion in a seat width direction, the stopping structure being configured to stop the forward tilting rotation of the seatback by abutment of the stopping portion and the stopper; and
a deformation inhibiting member that is non-rotatably fixed to the other of the seatback and the base, the deformation inhibiting member having:
a stopping surface that extends in the seat width direction and that is configured to stop a forward tilting rotation of the stopper at an engagement position where the stopping surface is brought into surface-abutment with the leg portion of the stopper; and

a deformation inhibiting surface that extends in a seat front-rear direction that is configured to minimize the deformation of the stopper in the seat width direction by the deformation inhibiting surface being brought into surface-abutment with the leg portion of the stopper upon forward tilting rotation of the seatback, wherein

the leg portion of the stopper is rotatable in a direction away from the stopping surface and the deformation inhibiting surface so as to disengage the surface-abutment of the leg portion of the stopper with the stopping surface and the deformation inhibiting surface, and
when the stopper abuts against the stopping portion following forward tilting rotation of the seatback, the deformation inhibiting member minimizes deformation of the stopper in the seat width direction.

7. The vehicle seat according to claim 6 , wherein
the stopping portion is provided on the seatback, and the stopper is pivotally connected to the base,
the stopper is configured to receive the forward tilting rotation of the seatback from the abutment of the stopping portion and to stop the forward tilting rotation of the seatback by the surface-abutment of the stopping surface, and
the stopper is further configured to be placed in a state that allows the forward tilting rotation of the seatback, by a retraction rotation of the stopper and a release of the surface-abutment with the stopping surface.

8. The vehicle seat according to claim 7 , wherein the deformation inhibiting member further includes an inclined guide surface that inhibits interference with a rotation of the stopper in the seat front-rear direction to a position where the stopper surface-abuts against the stopping surface and guides the stopper to the surface-abutment with the deformation inhibiting surface and that relieves interference with the leg portion of the stopper in the seat width direction.

9. The vehicle seat according to claim 6 , wherein the deformation inhibiting member further includes a groove provided at a corner portion of the deformation inhibiting member between the stopping surface and the deformation inhibiting surface.

Assignees

• Toyota Boshoku Kk

Inventors

• Yamaguchi Takao
• Kumazaki Yoshiyuki
• Nagasaki Shinya

Classifications

• B60N2/3011

  the back-rest being hinged on the cushion, e.g. "portefeuille movement" · CPC title

• B60N2/3013

  the back-rest being hinged on the vehicle frame · CPC title

• B60N2/68

  Seat frames · CPC title

• A47C1/024

  the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination · CPC title

• B60N2/12 Primary

  slidable and tiltable · CPC title