Suspended ceiling grid structure

Connecting means between ceiling grid inverted tee main and cross members disposed at right angles to each other and having upright central fins and bottom horizontal flanges, comprising

• a vertically disposed belt loop formed in the central fin of the main member and having a rear edge and a forward edge,
• a locking tongue extending from each end of the cross members in opposite directions at substantially right angles from the central fin of the cross member,
• positive stop shoulders at the top and bottom of the locking tongue for contacting the rear edge of the belt loop on the main member when the locking tongue is fully inserted into the belt loop, and
• a locking bump formed in the outer end portion of the locking tongues having a forward surface which slopes away from the main member fin for easy insertion into the loop,
• the locking bump having a rear surface sloping toward the fin which is pressed against by the loop to urge the stop shoulders into tight engagement with the rear edge of the loop.

Connecting means between ceiling grid inverted tee main and cross members disposed at right angles to each other and having upright central fins and bottom horizontal flanges, comprising

• a vertically disposed belt loop having a rear edge and a forward edge formed in the central fin of the main member,
• a locking tongue extending from each of the cross members in opposite directions at substantially right angles from the central fin of the cross member,
• a stiffening bead formed in the central fin of the cross member at each end of the cross member and extending through the locking tongues to an outer end portion of the locking tongues and tapering into the locking bump,
• positive stop shoulders at the top and bottom of the locking tongue for contacting the rear edge of the belt loop on the main member when the locking tongue is fully inserted into the belt loop, and
• a locking bump formed in the stiffening bead in the outer end portion of the locking tongues having a forward surface which slopes rearwardly away from the main member fin for easy insertion into the loop,
• the locking bump having a rear surface sloping rearwardly toward the fin with the loop pressing against the locking bump rear surface to urge the stop shoulders into tight engagement with the rear edge of the loop,
• the belt loop having an entrance portion which extends outwardly from the main member central fin to form a loop opening for easy insertion therein of the locking tongue,
• said loop opening extending outwardly from the fin a smaller distance than the locking bump so that the locking bump cams the loop away from the fin when the tongue is being inserted through the loop and the loop snaps back toward the fin when the tongue is fully inserted.