| 摘要 |
PROBLEM TO BE SOLVED: To provide an oilless multi-row chain, easy in a disassembling-installation work burden, by restraining sliding contact abrasion between an outer peripheral surface of a connection pin and an inner peripheral surface of a bush, by preventing leaking-out of lubricating oil and intrusion of outside dust-dirt, without increasing a chain manufacturing burden. SOLUTION: This oilless multi-row chain 100 is constituted of an inner plate 110, the bush 130, an intermediate plate 150, an outer plate 160 and the connection pin 170, and is provided by sealing the lubricating oil between the bush 130 and the connection pin 170, and by arranging a labyrinth structure forming member 180 for a first oil reservoir for sealing the lubricating oil on the outer plate 160 side between an inside surface of the outer plate 160 and an outside surface of the inner plate 110, and by arranging a labyrinth structure forming member 190 for a second oil reservoir for sealing the lubricating oil on the intermediate plate 150 side between an inside surface of the intermediate plate 150 and the outside surface of the inner plate 110. COPYRIGHT: (C)2009,JPO&INPIT
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