The invention discloses a child safety seat and a seat back assembly thereof.The seat back assembly comprises a backrest, a headrest and side wings, the headrest is slidably mounted at the upper end of the backrest, the side wings are arranged on the side edges of the backrest and can do unfolding and folding movement relative to the backrest, and the seat back assembly further comprises a driving part which is arranged on the backrest or the headrest and moves along with the headrest relative to the backrest; the headrest is at least provided with an initial position close to the backrest relative to the backrest and an action position driving the side wings to be unfolded relative to the backrest, and the side wings are folded on the backrest when the headrest slides to the position between the initial position and the action position. The driving part drives the side wings to be unfolded relative to the backrest when the headrest slides in the direction away from the backrest and crosses the action position, the side wings convexly extend to form a jacked structure in the direction close to the driving part, and when the side wings are folded relative to the backrest, projections of the jacked structure and a sliding path of the driving part in the front-back direction are overlapped.
本发明公开了一种儿童安全座椅及其椅背组件,椅背组件包括背靠、头靠及侧翼,头靠可滑动地安装于背靠的上端,侧翼设于背靠的侧边并可相对背靠做展收运动,椅背组件还包括设于背靠或头靠上并跟随头靠一起相对背靠运动的驱动件,头靠相对背靠至少具有一靠近背靠的初始位置及一带动侧翼相对背靠展开的动作位置,侧翼在头靠滑移至位于初始位置与动作位置之间的位置时收合于背靠上,驱动件在头靠沿远离背靠的方向滑移并越过动作位置时驱使侧翼相对背靠展开,侧翼往靠近驱动件的方向凸伸一受顶结构,当侧翼相对于背靠收合时,受顶结构与驱动件的滑移路径沿前后方向的投影存在重叠。
Child safety seat and seat back assembly thereof
儿童安全座椅及其椅背组件
2024-09-17
Patent
Electronic Resource
Chinese
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |