HEIGHT REGULITION APPARATUS OF THE CHAIR ARMREST

摘要

PURPOSE: A height adjustment device of an armrest is provided, which removes user's damage and guarantees freedom of art design. CONSTITUTION: A height adjustment device of an armrest comprises: an art tube(210) which is assembled with a vertical member and covers a length tube; a vertical member(220) creating a concealment gap of the length tube; a concealment gap(219) of the length tube which is installed between the art tube and vertical member; a length tube(130) which is extended to the external member of the assembly coupler and supports the vertical member to move up and down; and a height adjustment device installed between the length tube and vertical member.