| 摘要 |
According to the present invention, a multifunctional damper (100) comprises: a housing (110) having a first front hole (111) and a second front hole (113) which are opened to the front; a first elastic means (120) accommodated in the first front hole (111) to apply an expansive force; a first rod (130) accommodated in the first front hole (111) to press the first elastic means (120); a second elastic means (140) accommodated in the second front hole (113) to apply an expansive force; a second rod (150) accommodated in the second front hole (113) to press the second elastic means (140); and a pressing unit (160) disposed in the housing (110) to transfer a frictional force to the second rod (150) when the first rod (130) presses. Therefore, since an impact can be smoothly absorbed without using working oil, a manufacturing burden of filling working oil can be resolved, and production costs can be lowered. Moreover, even if any one among the first rod (130) and the second rod (150) does not operate, since an impact absorbing function can be performed using the other one, supplementation is possible in case of a failure. |
