| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubrication structure in a cylinder capable of allowing an additive mixed in the oil to be positively attracted to an inner face of the cylinder, and reducing the frictional resistance of a piston. SOLUTION: This lubrication structure comprises the cylinder 1 inside of which the piston 4 is reciprocated, the additive 6 mixed in the lubricant in the cylinder 1 and having the magnetically attracting property, and a magnet 5 mounted outside of the cylinder 1 to attract the additive 6 to an inner face of the cylinder 1. |
