Cover for tubular component - has protrusion extending into component and containing boss expanding it into engaged position

摘要

The cover has an outer portion(15) extending over the component(11), and with a protrusion(16) fitting inside it. A boss(20) slides axially inside the protrusion, causing it to expand and contract. The protrusion can have a section (18) with an internal truncated-cone face, against which one or more protrusions(21) on the outside of the boss bear. USE/ADVANTAGE - Particularly for covering lengthwise chassis member at lifting-jack bracket, being simple to assemble and use.