VEHICLE SEATS

• US 20140167465A1
• Filed: 11/18/2013
• Published: 06/19/2014
• Est. Priority Date: 12/19/2012
• Status: Active Grant

• Current Assignee: Toyota Boshoku Kabushiki Kaisha
• Original Assignee: Toyota Boshoku Kabushiki Kaisha
• Inventors: SAKATA, Masaru, HAMA, Mitsuko
• Granted Patent: US 9,321,373 B2
• Time in Patent Office: Days
• US Class Current: 297/284.11
• CPC Class Codes: B60N 2/0284 Adjustable seat-cushion length B60N2/0224 takes precedence
• CPC Class Codes: B60N 2/62 Thigh-rests B60N2/914 takes precedence
• CPC Class Codes: B60N 2/914 Hydro-pneumatic adjustments of the shape
• CPC Class Codes: B60N 2/995 Lower-leg-rests, e.g. calf-rests

Abstract

Embodiments of the present invention may include a vehicle seat having a seat cushion. The seat cushion may have a cushion frame, a cushion pad arranged on the cushion frame, and an airbag provided on a front portion of the seat cushion. The airbag preferably has a lower air chamber and an upper air chamber situated above the lower air chamber. The airbag is configured such that, when the upper and lower air chambers are at least partially filled with compressed air, the seat cushion is elongated while an upper portion of a peripheral wall of the lower air chamber supports a lower portion of a peripheral wall of the upper air chamber.

Claims

1. A vehicle seat comprising:

a seat cushion having

a cushion frame;

a cushion pad arranged on the cushion frame; and

an airbag provided on a front portion of the seat cushion, the airbag having a lower air chamber and an upper air chamber situated above the lower air chamber, the airbag being configured such that, when the upper and lower air chambers are at least partially filled with compressed air, the seat cushion is elongated while an upper portion of a peripheral wall of the lower air chamber supports a lower portion of a peripheral wall of the upper air chamber.

2. The vehicle seat of claim 1, wherein the upper air chamber comprises a front upper air chamber and a rear upper air chamber situated behind the front upper air chamber, and

the front upper air chamber has a peripheral wall and the rear upper air chamber has a peripheral wall;

and

wherein a recess or cleavage is formed between lower portions of respective peripheral walls of the front and rear upper air chambers, and

wherein the upper portion of the peripheral wall of the lower air chamber supports the lower portions of the respective peripheral walls of the front and rear upper air chambers from the recess or cleavage below.

3. The vehicle seat of claim 1, wherein the airbag comprises a first airbag having a first air chamber and a second airbag having a second air chamber.

4. The vehicle seat of claim 1, wherein the cushion frame integrally or individually comprises the front portion and a support member,

wherein the support member is configured to support a lower portion of the peripheral wall of the lower air chamber.

5. The vehicle seat of claim 1, wherein the airbag is configured such that the compressed air is individually supplied to the lower and upper air chambers.

6. The vehicle seat of claim 1, further comprising a front air chamber situated in front of the upper and lower air chambers, and

wherein the front, upper and lower air chambers respectively have a peripheral wall,

wherein a recess or cleavage is formed between the respective peripheral walls of the front and upper air chambers, and

wherein the peripheral wall of the lower air chamber supports the respective peripheral walls of the front and upper air chambers from the recess or cleavage below.