| 摘要 |
The invention provides an improved display board apparatus which can be folded down when not in use so as to be substantially flat. The apparatus 41 when in its assembled erect condition, has a front panel 12, a rear panel 14 joined to the front panel along opposite vertical sides thereof, and a plurality of elastic traction members 42 attached to the rear panel 14 and arranged to tension rear panel 14 so that the front panel 12 assumes a convex shape. The improvement consists of an integrally formed rearwardly projecting spine 44 in the rear panel 14 extending between the upper and lower edges thereof, the spine 44 being delineated by a plurality of parallel spaced apart fold lines 24, 26, 26 '. Each of the elastic traction members 42 extends across and through the spine and has its opposite ends anchored at locations adjacent the sides of the spine 44.
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