| 摘要 |
A spiral for interconnecting ends of endless belt segments using a pintle. The spiral comprises a series of loops (2) including inverted U-shaped loop portions (4) extending in a transverse direction (6) of the spiral. The loop portions (4) have front and rear legs (8, 10) spaced apart from each other for passage of the pintle therebetween. U-shaped loop linking portions (12) extend diagonally with respect to a longitudinal direction (7) of the spiral, between lower ends of the front legs (8) and lower ends of the rear legs (10) of the next loop portions (4) respectively. The loop portions (4) are spaced from one another by a distance (14) corresponding to a width (16) of the legs (8, 10) of the loop portions (4) in the longitudinal direction (7) of the spiral, thereby defining openings (17) for interdigitation with a like spiral to form a channel (19) for the pintle. |
