Safety belt arrangement for a columnless vehicle and columnless vehicle
By using a rotation limiting component to restrict the rotation of the shoulder anchor point in the seat belt device of a pillarless vehicle, the problem of reduced seat belt restraint force during a frontal collision in a center pillarless vehicle is solved, achieving effective restraint and convenience for occupants.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2025-12-05
- Publication Date
- 2026-07-17
AI Technical Summary
In a frontal collision involving a pillarless vehicle, the shoulder anchor point rotates excessively toward the front of the vehicle, resulting in a decrease in the restraining force of the seat belt on the occupant.
In the seat belt system of a pillarless vehicle, the upper part of the shoulder anchor point is rotatably mounted on the roof longitudinal beam. The rotation is restricted by a rotation limiting component connected to the rear side of the roof longitudinal beam, thus ensuring the effective restraint of the seat belt.
It suppresses the decrease in the restraining force of seat belts on occupants during a frontal collision in pillarless vehicles, ensuring occupant safety while maintaining the appearance of the vehicle interior and ease of getting in and out.
Smart Images

Figure CN122402431A_ABST
Abstract
Citation Information
Patent Citations
Seat belt device
JP1984034958A
Seat belt structure for vehicle
JP2003011779A