Cabinet construction and locking system

A multiple drawer, heavy duty tool cabinet comprising, in combination:

• first and second spaced, parallel, lower channel members;
• first and second spaced, parallel upper channel members, said upper and lower channel members having an equal length, said channel members each having an outwardly open channel;
• first, vertical, slide carrier members connecting the ends of the first channel members to define a first endoskeleton framework for the cabinet;
• second, vertical, slide carrier members connecting the ends of the second channel members, to further define a second endoskeleton framework for the cabinet, said slide carrier members having a series of uniformly spaced, drawer slide engagement slots, said slots uniformly spaced vertically along the length of the slide carrier members to define multiple drawer slide carrier mounting slots for drawers of various depth;
• opposite side, bottom, back and top side panels affixed to the first and second frameworks of channel members and slide carrier members to define an enclosure for the cabinet with a front access opening for receipt of sliding drawers, the side, top and bottom panels defining structural elements to maintain parallel spacing of the first and second endoskeleton frameworks;
• and
• a plurality of slide drawers mounted for sliding movement from the front into and out of the endoskeleton frameworks, said drawers supported solely on the vertical, slide carrier members by drawer slides engaged with the slide engagement slots;
• said cabinet further including a drawer locking mechanism mounted on the endoskeleton framework comprising, in combination:
• the first endoskeleton framework member positioned behind the maximum internal movement of sliding drawers;
• at least one vertical locking bar;
• a horizontal leg pivotally mounted on one of said first channel members supporting the vertical locking bar, said leg pivotal between a biased open position and a closed drawer locking position;
• a control handle;
• a flexible cable linked to the horizontal leg at one end and to the control handle at its opposite end for pivoting the locking bar to the drawer locking position;
• a biasing spring for maintaining the horizontal leg in the drawer locking position;
• a release control;
• a second flexible cable connecting the release control to the biasing spring for releasing the biasing spring from the drawer locking position, said flexible cables extending through channels in the channel members, said locking bar and release control also mounted on one of said channel members.