| 摘要 |
The device is used to protect telescopic shafts, which are especially articulated shafts on the drives of agricultural equipment, and has inner (9) and outer (8) tubes which can slide relative to one another, and which are made from a synthetic material. The outer tube has at least three grooves on its inner surface (12), which open towards its longitudinal axis (5), and which are bounded by pairs of longitudinal ribs (13,14) which project from this surface, and which are distributed around its circumference. The outer tube also has at least one guide web (15) which projects longitudinally from its inner surface between each pair of ribs. The inner tube has guide ribs (16) which project radially from its outer surface (17), and whose number corresponds to that of the pairs of ribs on the outer tube. The ribs on the inner and outer tubes engage with one another with radial and circumferential clearance.
|
