Minimize vertical shelf spacing and allow direct front loading with these intriguing product stops that retract and fold out of the way. Proper product rotation, however, would seem to be out of the question.  The units were employed vending only very small items in HBA, implying light-duty (possible short system life?) for the constantly articulated fronts. Nevertheless it is an outrageously good idea in tight spaces, even if not conducive to freshness dated products.

For related auto-feed post SEE…
Mike and Ike in Pusher Trays
Softgoods Vend in Pusher Tray
Kielbasa Shelf Management with Auto Feed
Shelf Management on a Zigzag
Auto Feed Pusher Hook Rack
Auto-Feed Point-of-Purchase for Gift Cards
Bar Mount Pusher Trays and Pie a la Mode Cross Sell
Side-Mount Wire Pusher Extension
One-up Pushers for Toothbrushes
Portfolios in Pusher Systems

For unusual articulated fixture fronts SEE…
Hinged Metal Plate Label Holders
Articulated Metal Tag for Labels
Curved Basket Tag with Kick Stand