| 摘要 |
<p>A first pin (3) of a connecting member (50) of connecting a plurality of links (2) to each other includes a front portion (12) opposed to a corresponding second pin (4). The front portion (12) is brought into rolling and sliding contact with the corresponding second pin (4) at a contact portion (T1) displaced in accordance with a vibration in a bending angle between the links (2). A locus of moving the contact portion in accordance with bending the link (2) forms an involute curve INV. A contact region of an end face (17) of the first pin (3) is brought into contact with a sheave face of a pulley by constituting a center by a contact center point. With regard to an orthogonal direction (V), a distance between a contact center point and a contact portion when the bending angle is zero and a distance between the contact center point and a contact portion when the bending angle is an allowable maximum bending angle are equal to each other.</p> |
