| 摘要 |
PROBLEM TO BE SOLVED: To provide a chain and a connection pin, which can reduce the number of components and a workload concerning chain assembling and improve the strength of the connection pin.SOLUTION: A chain 100 comprises: inner plates 110; outer plates 120; and connection pins 130. In the chain 100, the connection pin 130 has: a pair of outer shaft portions 131 formed on both end sides of the same and fixed to pin holes 121 of the outer plates; a pair of inner shaft portions 132 formed longitudinally inside the pair of outer shaft portions 131 and loosely fitted in pin holes 111 of the inner plates 110; and a movement regulation portion 133 formed pin-longitudinally inside the pair of right and left inner shaft portions 132 and regulating movement of the inner plates 110 inward in a chain width direction. |
