| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a constant-mesh transmission that hardly comes off due to a centrifugal force or running torque and that has a tooth form excellent in transmission capacity and durability.SOLUTION: In a synchromesh device of a constant-mesh transmission of an automobile, a convex semicircular part or concave tip of a gear having a semicircular arc-shaped rotational-direction cross-section is formed as semicircular arc-shaped concave or convex insert pieces 1a, 1b, 1c.... The insert pieces 1a, 1b, 1c... of the concave semicircular part or concave tip are formed in shapes in which semicircular arc-shaped tips are provided and in which a small-width part for a spigot and a great-width part increasing width inward exist.</p> |
