| 摘要 |
A collapsible support such as a post includes two sections interconnected via first and second threaded joint units. The first joint unit includes a first male screw member engageable with a female screw of one of the sections, a first engaging end face formed at one end of the first male screw member, and a stem projecting outward axially from the first engaging end face. The second joint unit includes a second male screw member for engaging a female screw of the other section, which is sleeved rotatably around the stem and has a second engaging end face confronting the first engaging end face. A clamp member mounted on the stem clamps together the first and second male screw members. The first and second male screw members are interlockable via the first and second engaging end faces. A resilient member mounted on the stem permits the first and second male screw members to disengage from each other for adjustment of the angular positions of the two sections.
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