| 摘要 |
A jack system for supporting and transporting display arrangements, such as wall displays in commercial as well as residential settings, is capable of positioning between a movable load-bearing position and a stationary position. The jack system includes a display support adapted for supporting a wall display or vignette and at least one caster assembly carried by the display support for providing rolling movement of the display support. At least one jack assembly is mounted to the display support and includes an upstanding jack stand and a jack carried by the jack stand and is adapted to position the display support and the at least one caster assembly to a movable load-bearing position and to a the stationary position.
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