| 摘要 |
PROBLEM TO BE SOLVED: To suppress a lubrication shortage at a part with a foreign matter or a defect with respect to improvement of a suspension device.SOLUTION: A suspension device includes an air chamber A formed inside of an outer tube 1 and an inner tube 2, a cylindrical clearance 3 formed between overlapping parts of the outer tube 1 and the inner tube 2, an outer bearing 4 held on an inner periphery of the outer tube 1 to come into sliding contact with an outer peripheral surface of the inner tube 2, and an oil seal 50 that is serially held on an inner periphery closer to an outside air side than the outer bearing 4 of the outer tube 1 and closes an outside air side opening of the cylindrical clearance 3. The cylindrical clearance 3 stores a lubricant, and communicates with the air chamber A via a hole 20 formed in the inner tube 2. The cylindrical clearance 3 includes a free piston 6 whose specific gravity is lighter than that of the lubricant and which is axially movable in a fixed range of the cylindrical clearance 3. |
