| 摘要 |
PURPOSE: A bottom connection structure of a dust cover prevents the inflow of dust and foreign bodies by connecting the bottom of a dust cover to the top of a cylinder and reduces the friction between an outer cap coupled with a dust cover and an inner cap coupled with a cylinder. CONSTITUTION: A bottom connection structure of a dust cover comprises an outer cap(10), an inner cap(20), and a sliding device. The outer cap is coupled with the bottom of a dust cover(3). The inner cap is coupled with the top of a cylinder and connected to the outer cap to be slid. The sliding device is arranged to allow the inner cap to slide relative to the outer cap.
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