Seat for a vehicle

By configuring an inclined, extended support component between the seat back frame and the cushion, the reaction force is transmitted, solving the problem of insufficient occupant postural stability in the prior art, improving the stability of the upper body and head, and enhancing body balance and structural durability.

CN122275727APending Publication Date: 2026-06-26TOYOTA JIDOSHA KK
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Patent Information

Application Number
CN202511768112.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-12-25
Filing Date
2025-11-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In the prior art, the methods for stabilizing the posture of passengers are based solely on elastic force adjustment mechanisms using parallel tensioned lines, which fail to effectively improve the vertical stability of the vehicle in the rolling direction, especially when the vehicle is turning, resulting in insufficient stability of the passenger's upper body and head.

Method used

A first and second strip-shaped support member is arranged between the seat back frame and the seat back pad, which extend obliquely relative to the width of the seat and transmit reaction force through tension. A third support member extends along the width of the seat to support the sacrum. The intersection is located at the lumbar spine position and is made of metal wire.

Benefits of technology

It improves the rider's upper body grip and head stability, maintains an upright posture, enhances body balance stability, suppresses the decline in rotation and load-bearing performance during rotation, and improves the strength and durability of the structure.

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Abstract

A vehicle seat includes: a seat back frame vertically extending from the rear end of a seat cushion; a seat back pad disposed on the front side of the seat back frame to support the back of a passenger; a first elongated support member disposed between the seat back frame and the seat back pad, extending in a direction inclined relative to the width of the seat, and transmitting a reaction force to the back of the passenger through tension; and a second elongated support member disposed between the seat back frame and the seat back pad, extending in a direction inclined relative to the width of the seat at the lumbar region, intersecting with the first support member, and transmitting a reaction force to the back of the passenger through tension.
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Citation Information

Patent Citations

  • Vehicle seat

    JP2020059492A