| 摘要 |
The present invention provides for a portable information sign device. A top plate comprises a top plate foundation and three top plate coupling ports. A center arm is coupled to the top plate, and comprises an arm rod axially coupled to the top plate foundation of the top plate, the arm rod comprising a first end coupled to the top plate foundation of the top plate and a distal end, a sliding plate slideably coupled to the arm rod and comprising a sliding plate foundation and three sliding plate coupling ports, a spring comprising a first end and a second end, the first end of the spring axially coupled to the sliding plate foundation and the spring encircling the arm rod, and a stop coupled to the distal end of the arm rod and the second end of the spring. A first guide arm is coupled to a first coupling port of the sliding plate and comprises a sliding plate end and a leg end. A second guide arm is coupled to a second coupling port of the sliding plate and comprises a sliding plate end and a leg end. A third guide arm is coupled to a third coupling port of the sliding plate and comprises a sliding plate end and a leg end. A first leg comprises a first end rotably coupled to a first coupling port of the top plate, a guide arm coupling port rotably coupled to the leg end of the first guide arm, and a distal end. A second leg comprises a first end rotably coupled to a second coupling port of the top plate, a guide arm coupling port rotably coupled to the leg end of the second guide arm, and a distal end. A third leg comprises a first end rotably coupled to a third coupling port of the top plate, a guide arm coupling port rotably coupled to the leg end of the third guide arm, and a distal end.
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