System for positioning and retaining an article of modular furniture

A system for positioning and retaining in place an article of modular furniture upon the upper face of a rest block, the article of modular furniture being in the form of a slab having an external edge provided with a concave recess therein and a hole extending inwardly at the center of the concave recess, and the upper face of the rest block being provided with a recess therein, said system comprising:

• an intermediate piece having a horizontal plate with upper and lower faces and opposed ends and an arcuate heel extending upwardly from said upper face perpendicular to said plate at one end thereof, said lower face of said plate including locking means for locking said plate into the recess in the upper face of the rest block, and said heel having the shape and dimensions of the recess provided in the external edge of the slab and having a hole therethrough positioned to align with the hole in the concave recess in the external edge of the slab;
• a fastener including a locking stud and a head, said head having a vertical planar part and a horizontal part having the shape of a segment of a circle, said vertical planar part having the same height and width as the concave recess in the external edge of the slab, and said segment-shaped part being complementary in shape to the concave recess in the external edge of the slab, and said stud extending perpendicularly from said vertical planar part and being configured to pass through said hole in said heel of said intermediate piece and the hole in the concave recess in the external edge of the slab, whereby said fastener fully closes the concave recess in the external edge of the slab when said stud is forced into said holes.