本发明涉及一种扶手椅书写板铰接装置。
本发明铰接装置通过设置在上、下臂的凹槽及上、下壳体的开槽从而方便在其内部走线。
The hinging device can conveniently distribute wires inside through the grooves of the upper arm and the lower arm and the notches of the upper shell and the lower shell.
推式铰接装置是可以应用于发动机后置铰接式客车的专用铰接装置，其具有独特的结构、工作原理及电气控制系统。
The push articulating device is special for the rear engine articulated bus. It possesses particular structure, working principle and electric control system.
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