초록 ▼

The present invention is a folding and telescopic structure that consists of two parallelograms (1) (2), which can be flattened in opposite directions, located on the same plane and joined articulately by two springs (17) from its front (3) and back (4) jambs. These jambs (3) (4), which are "U" shap

The present invention is a folding and telescopic structure that consists of two parallelograms (1) (2), which can be flattened in opposite directions, located on the same plane and joined articulately by two springs (17) from its front (3) and back (4) jambs. These jambs (3) (4), which are "U" shaped and hollow, allow the end (5) and intermediate (6) crossbars to lodge inside to totally occupy the space available inside the hollow jambs. The end crossbar (5) has a groove (8) in which to slide a first shaft (9) of the back jamb (4) at the same time that a it can turn counter-clockwise upon a second shaft (10) of the front jamb (3) . The intermediate crossbar (6) 15 moves in a similar way, but the hinge (13) that receives the second shaft (12) is not fixed on the intermediate crossbar (6), but can be slid across it. FIG. 1.

대표청구항 ▼

[ I claim:] [1.]1. A folding telescopic apparatus, comprising:a pair of parallelogram structures formed from spaced apart first and second jambs and a plurality of cross bars extending therebetween; anda pair of hinges connecting the pair of parallelogram structures, wherein the parallelogram struct

[ I claim:] [1.]1. A folding telescopic apparatus, comprising:a pair of parallelogram structures formed from spaced apart first and second jambs and a plurality of cross bars extending therebetween; anda pair of hinges connecting the pair of parallelogram structures, wherein the parallelogram structures have an unfolded configuration and a folded configuration, the jambs being fixed in the unfolded configuration and adapted to flatten the parallelogram structure when in the folded configuration by moving opposed comers of the parallelogram structure in opposite directions, and adapted to telescopically compress after the parallelogram structure has been flattened.