| 摘要 |
A shock absorption device 1 for a surrounding or abutting structure includes an outer cylinder assembly which includes a cap shaped body member 5 which includes at least one elongated slit 16, with at least one width or gap 18, at least one exterior circumferential groove 17a, at least one first threaded portion 19. The cap shaped body including a hollow space therein which includes at least one protruding member 22 therein and at least one first spring member 24. At least one resilient ring member 17 is provided to outwardly encircle an exterior curved wall surface 20 of the cap shaped body member 5. The shock absorption device also includes, an inner cylinder assembly which includes a cylindrical shaped body member 6 which includes at least one second threaded portion 37 and has a hollow space therein which includes at least one compressive member 56, at least one second spring member 57, at least one movable piston member 46. The inner cylinder assembly is threadably engaged within the outer cylinder assembly whereby the first threaded portion 19 threadably engages with the second threaded portion 37. In use when an external impact force F1 is applied to the cap shaped body member 5, the first threaded portion 19 jumps over the second threaded portion 37 as provided by elastic movement of the resilient ring member 17 about the cap shaped body member 5 which allows the first threaded portion 19 of the cap shaped body member 5 to jump over the second threaded portion 37 of the cylindrical shaped body member 6 when an external impact force F1 is applied, to allow one way movement only, the first spring member 24 is compressed, the protruding member 22 pushes the piston member 46, the piston member 46 pushes and compresses the second spring member 57 and the compressive member 56 which when relaxed are providing a reactive force F2 to cause the absorption of the external impact force F1 in such a way that the shock absorption device 1 is locked in a random position when F2=F1. The outer cylinder assembly and the inner cylinder assembly are not able to disengage with respect to each other. A method of assembly of the shock absorption device 1 is also claimed. |
