Collapsible table formed of injection-molded half-sections

Details Collapsible table formed of injection-molded half-sections Collapsible table formed of injection-molded half-sections

B - Operations, Transporting

29

D

B29D 99/00 (2010.01) A47B 3/00 (2006.01) A47B 3/087 (2006.01) A47B 13/08 (2006.01) B29C 45/03 (2006.01) B29C 45/33 (2006.01) B29C 45/44 (2006.01)

Patent

CA 2413874

A system for injection molding a half-section of a collapsible table that includes a pair of interhinged half-sections. The system is provided with a mold whose dimensions are appropriate to the half-section to be molded therein, and a driven carrier adjacent one end of the mold having cantilevered therefrom parallel core rods that project into the mold. When the carrier is driven to cause the core rods to occupy an "in" position in which the rods are fully within the mold and extend the full length thereof, molten plastic is then injected into the mold to submerge the rods therein. When the plastic cures and rigidifies, parallel reinforcing beams are then created about the rods which are integrated with the resultant half-section. When the carrier is driven to withdraw the rods from the mold which are now in an "out" position, the reinforcing beams are then hollow and the resistance of the half-section to bending forces is enhanced.

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