Leg rest adjustment mechanism, leg rest assembly, seat and vehicle

By introducing gear meshing transmission and linkage adaptive rotation into the leg rest adjustment mechanism, the combined translational and rotational motion of the leg rest support plate is achieved, solving the problem of limited leg rest adjustment range and improving the adaptability of the vehicle seat.

CN122143756APending Publication Date: 2026-06-05GAC TOYOTA MOTOR
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GAC TOYOTA MOTOR
Filing Date
2026-03-24
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing leg support adjustment mechanisms are limited by the length of the slide rails and cannot provide a sufficiently long adjustment range, resulting in vehicle seats that cannot meet the leg support needs of occupants of different body types.

Method used

By setting up meshing transmission between the first gear structure and the second gear structure, and coordinating with the adaptive rotation of the first link and the second link, the leg support plate can rotate synchronously while the drive device drives the leg support plate to translate along a preset path, thus achieving the superposition of strokes.

Benefits of technology

With limited internal space in the seat cushion frame, the leg support adjustment mechanism achieves a greater effective adjustment range, improving the adaptability of the vehicle seat and better meeting the leg support needs of occupants of different body types.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122143756A_ABST
    Figure CN122143756A_ABST
Patent Text Reader

Abstract

The application discloses a leg support adjusting mechanism, a leg support assembly, a seat and a vehicle, and relates to the technical field of vehicle seats, which comprises a leg support supporting plate, a driving device, a first connecting rod and a second connecting rod. The leg support supporting plate is provided with a first gear structure. The driving end of the driving device is rotationally connected to the first gear structure about a first axis. The driving device is used for driving the leg support supporting plate to move along a preset path perpendicular to the first axis. The first end of the first connecting rod is rotationally connected about a second axis. The first end of the second connecting rod is rotationally connected to the second end of the first connecting rod about a third axis. The second end of the second connecting rod is provided with a second gear structure, and the second gear structure is in meshing transmission with the first gear structure. In the scheme, the actual adjusting stroke of the leg support adjusting mechanism is equal to the linear translation distance of the leg support supporting plate directly driven by the driving device on the preset path plus the additional support length contributed by the rotating action of the leg support supporting plate. Thus, the leg support can obtain a larger effective adjusting stroke in the same space.
Need to check novelty before this filing date? Find Prior Art