| 摘要 |
A quick change display frame is shown, especially useful for removably mounting pictures, including a first triangular frame portion, a second triangular frame portion. As shown, each triangular member is identical to the other. The two triangular frame portions are interconnected by a pair of cam plates. As shown, each cam plate is identical to the other. A cam slot and pin constrains one of the triangular frame portions for arcuate movement out of planar contact with respect to the other frame portion to permit easy insertion of a preselected picture in the frame. Thereafter the frame portions are once again moved together as constrained by the cam plate action into planar contact to fix the picture or other display article in the frame.
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