| 摘要 |
FIELD: transport.SUBSTANCE: invention relates to transport engineering. Coupling hinge comprises coupling seat to receive appropriate joint ball. Coupling seat is engaged with coupling bracket. Coupling seat open edge is arranged so that said coupling ball can displace in one first plane of turn and in one second turn plane other than the first turn plane. First turn plane includes the main coupling hinge pull direction first area. Second turn plane includes the main coupling hinge pull direction second area. Turn first area is larger than turn second area.EFFECT: higher stability of trailer.17 cl, 12 dwg |
