| 摘要 |
PROBLEM TO BE SOLVED: To reduce a wear when a caterpillar chain is traveled in a predetermined direction on a body frame thereby increasing a durability, and to reduce generation of abrasion powders when the caterpillar chain is travelled on the body frame thereby maintaining a good quality of an object to be transported.SOLUTION: A caterpillar type chain in which a chain unit member is constituted from a link member having a bearing link part and a pair of pivotal support link parts between which the bearing link part is positioned, a rolling roller disposed between each of the pivotal support link parts and the bearing link part, and a fixation shaft which connects the bearing link part, the rolling roller and the pivotal support link part, and the rolling roller is constituted in such a manner that plural unit rollers, each having an axis length formed by equally dividing a space between the bearing link part and the pivotal support link part in an axial direction, are connected to one another in the axial direction. |
