| 摘要 |
PROBLEM TO BE SOLVED: To provide a bush chain capable of reducing the number of part items, and capable of reducing abrasion. SOLUTION: The bush chain 1 is provided with sets 2 and 3 of outside link and inside link which are alternately arranged. The set 2 of the outside link has a pair of outside links 20 arranged at an interval and fixed to an end part of a pin 4, and the respective outside links 20 have a pair of pin holes 20a for receiving the pin 4. The set 3 of the inside link has a pair of inside links 30 arranged at an interval inside the set 2 of the outside link and installed in an end part of a bush 5, and the respective inside links 30 have a pair of bush holes 30a for receiving the bush 5, and the bush 5 is arranged so as to rotate on the pin 4 of the outside link 20. The bush 5 has both end parts 50 rotatably supported by the respective bush holes 30a of the respective inside links 30 and a central part 51 formed between both end parts 50 and having a larger diameter than a diameter of both end parts 50. COPYRIGHT: (C)2010,JPO&INPIT
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