ADJUSTABLE CHOCK WITH HEIGHT LIMITER

摘要

An adjustable chock comprises a first component (106) having an external screw thread (114), and a second component (108) having an internal screw thread (128) configured for engaging with the external screw thread of the first component. The external screw thread and the internal screw thread engage over a distance (140), determined in an axial direction parallel to a common axis of the internal screw thread and the external screw thread. The distance can be adjusted by rotating the first component relative to the second component while the internal screw thread and the external screw thread remain engaged. The chock comprises a mechanical limiter (302, 306, 308, 310) configured to mechanically limit a lower bound of the distance to a pre-set value while the internal screw thread and the external screw thread remain engaged.