Folding, dismountable and telescopic structure

• US 6,295,669 B1
• Filed: 04/28/2000
• Issued: 10/02/2001
• Est. Priority Date: 04/29/1999
• Status: Expired due to Fees

• Current Assignee: Jose Lopez Saus
• Original Assignee: Jose Lopez Saus
• Inventors: Saus, Jose Lopez
• Primary Examiner(s): Grosz, Alexander
• Application Number:
  US09/560,831
• Time in Patent Office: 522 Days
• Field of Search: 517/4, 550/41, 511/1, 511/4, 511/2, 511/6, 511/7, 531/2, 517/61, 248/346.3, 108/115, 108/163, 297/42
• US Class Current: 5/116
• CPC Class Codes: A47C 17/64 Travelling or camp beds adjusting members for rests A47C20/00; travelling or camp sacks or packs convertible into beds or mattresses A45F4/06; stretchers A61G1/00
• CPC Class Codes: A47C 17/76 having extensible, e.g. telescopic parts

Abstract

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.

Claims

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; and

a 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.

2. The apparatus of claim 1, wherein the first and second jambs are hollow “

U”

-shaped and the parallelogram structure includes;

a pair of end cross bars connecting the first and second jambs, wherein the end cross bars include a pivoting end attached by a hinge pin and a sliding end attached by a sliding pin, wherein the sliding pin is configured to slide along a groove extending the length of the end cross bar; and

at least one intermediate cross bar connecting the first and second jambs, wherein the intermediate cross bar includes a pivoting end attached to either of the first and second jamb by a hinge pin, which is mounted to a hinge that slides in an auxiliary groove extending along a portion of the intermediate cross bar, and a sliding end attached by a sliding pin to the other jamb, which is adapted to slide along a main groove extending the length of the intermediate cross bar perpendicular to the auxiliary groove, wherein both the end cross bars and intermediate cross bars are configured to rotate counter-clockwise when the parallelogram structure flattens and then slide when the parallelogram structure is telescopically compressed.

3. The apparatus of claim 2, wherein the apparatus is used as a bed and includes:

a pair of central legs joined to the jambs, one leg of the pair attached to each jamb; and

two pairs of end legs joined to the jambs, a pair of legs attached at each end of the bed, one leg of each pair attached to each jamb.

4. The apparatus of claim 1, wherein the apparatus is used as a bed and includes:

a pair of central legs joined to the jambs, one leg of the pair attached to each jamb; and

two pairs of end legs joined to the jambs, a pair of legs attached at each end of the bed, one leg of each pair attached to each jamb.