| 摘要 |
A sprocket (10) capable of engaging with a plurality of cored bars (22) placed in an elastic endless belt-shaped body (21), wherein of the tooth surfaces (F) of the teeth (12) of the sprocket (10), part of at least one tooth root, of which the center line (02) of the tooth (12) is the border, is a tooth root surface (21b), and the tooth root surface (21b) is inclined at an angle (A) of 0° or more and 7.5° or less in relation to the center line (02) of the tooth (12), so that as the tooth root surface moves toward the tooth tip surface (12d), the tooth root surface draws nearer to the center line (02) of the tooth (12). |
