| 摘要 |
A diarthrosis is provided to prevent the oil(lubricating material) that is injected between joints from being leaked out to increase durability of joints and to prevent the damage of the joints. A diarthrosis connects a first joint(11) and a second joint(12), and includes a bushing(14), a shaft(13) and a leakage preventing member(15). The bushing connects the first joint and the second joint. A penetrating hole is formed on the first and second joints. The shaft is inserted into the inner circumference of the bushing and enables the rotation of a joint. The leakage preventing member is installed between the shaft and the bushing and prevents the leakage of the injected oil. The leakage preventing member is formed in the shape of a circle or a pad, and is coupled to any one selected from the bushing and the shaft. |
