Folding, dismountable and telescopic structure

Details Folding, dismountable and telescopic structure Folding, dismountable and telescopic structure

2000-04-28

2001-10-02

Grosz, Alexander (Department: 3628)

Beds

Camp beds

Transverse collapse

C005S111000, C005S114000, C005S176100, C005S312000, C108S115000, C248S346300

Reexamination Certificate

active

06295669

ABSTRACT:

This invention is a structure that may be used to cover a relatively extensive area, compared to the size it occupies once it is folded, flattened, and compressed, since some parts fit inside other parts in a telescopic way.
It is useful in the furniture industry to make chairs or beds, and in the home to make washing lines, portable antennae and generally for any application that requires a folded structure with reduced weight and volume to cover a relatively large area.
The folding telescopic structure that is the subject of this invention is formed by two parallelogram structures that flatten when opposed corners move in opposite directions, on the same plane. The two parallelogram structures are joined by two spring hinges, one connecting the front jambs and one connected to the back jambs. The end and intermediate crossbars, are attached to these jambs and fit inside these jambs, which are “U” shaped and hollow, when the folding telescopic structure is folded, flattened, and telescopically compressed completely filling the available space within these jambs.
The advantages compared to other folding devices are considerable, because the structure that is the subject of this invention achieves:
A reduction of 50% in the length of the area, once unfolded.
A reduction of 90% in the width of the area, once unfolded.
When unfolded, the structure automatically cannot be flattened and telescopically compressed.
High resistance.
Minimum volume, once the structure is folded.


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