| 摘要 |
The display cabinet has a base (2) containing the refrigeration appts. and a glass cover (3) with glass panels (5) pivoted about a horizontal position into an open position. To prevent collision between the two panels of an angled display when both are opened simultaneously, a warning signal is supplied upon attempted opening of one cover (5) when the other cover is already open. Respective switches are operated upon each panel being moved into the open position, and are coupled to AND logic for operating the warning display. Each switch pref. lies adjacent the edge of the cover (5). ADVANTAGE - Simple and cheap to install. |
