| 摘要 |
The present invention relates to a column unit (100) for a chair, which may be configured to constitute an outer pipe (110) forming one or more hooking projections (111) and perforating a fixed ball (112); a spindle guide (120) forming an annular groove (123) and connecting a spring pin (124); a taper bushing (130) forming an annular mounting groove (133), forming multiple indentation ribs (131), and forming a hooking groove (132); a spindle assembly (140) provided with spin pipes (141); and a cylinder rod (150) connected to a piston (151). |
