| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal chain capable of preventing damage to an annular seal member made of an elastic material, while preventing an increase in the width of the chain and reducing manufacturing costs. SOLUTION: In the seal chain 21 having the annular seal member 27 made of the elastic material mounted on the inner surface of an outer plate 26 while surrounding a pin 25, both ends of a bush 22 are pressed and fixed into bush pressing holes 23a in such a way that both end faces of the bush 22 are located inward of the outer surface of an inner plate 23 to thereby form a void in each bush pressing hole 23a. The outer edge of each bush pressing hole 23a is beveled to form a beveled part 23b. The beveled part 23b is formed as a beveled part with little surface roughness during the punching of the inner plate 23. The annular seal member 27 made of the elastic material is partially located within the void and is installed while being compressed by the inner surface of the outer plate 26, the outer peripheral surface of the pin 25, the end face of the bush 22 and the beveled part 23b. COPYRIGHT: (C)2003,JPO
|
