EP 0263628 A3 19890315 - COLLAPSIBLE STRUCTURE CONVERTIBLE TO A LOAD-SUPPORTING DEVICE

Title (en)

COLLAPSIBLE STRUCTURE CONVERTIBLE TO A LOAD-SUPPORTING DEVICE

Publication

EP 0263628 A3 19890315 (EN)

Application

EP 87308547 A 19870928

Priority

IL 8023686 A 19861006

Abstract (en)

[origin: EP0263628A2] Various structures, such as a stair, bridge, table, ladder, or stretcher can be folded to a compact configuration for transportation and/or storage but rapidly extended for deployment as a rigid, load-bearing device. The structures include a plurality of rows of rigid plates (1) hinged together about mutually perpendicular axes. If all of the plates are in a common plane and a force is applied perpendicular to the hinge axes, the plates can fold up to a compact form. When one or more of the rows of plates is swung perpendicular to a further row of hinged plates, the configuration becomes rigid and capable of supporting a load.

IPC 1-7

F16B 5/00; F16S 3/04

IPC 8 full level

A47C 19/12 (2006.01); A47B 3/00 (2006.01); A61G 1/013 (2006.01); E01D 15/12 (2006.01); E04C 2/40 (2006.01); E04C 3/00 (2006.01); E04G 5/08 (2006.01); E06C 1/52 (2006.01)

CPC (source: EP)

A47B 3/00 (2013.01); A47C 19/126 (2013.01); A61G 1/013 (2013.01); E01D 15/124 (2013.01); E04C 2/405 (2013.01); E04C 3/005 (2013.01); E06C 1/52 (2013.01); A47B 2230/0096 (2013.01)

Citation (search report)

[A] DD 129574 A1 19780125 - TITTEL KLAUS
[A] GB 780084 A 19570731 - MAX RUBINS, et al
[A] GB 833072 A 19600421 - INTERNAT STAL COMPANY AB
[A] US 1441343 A 19230109 - SIBLEY HARTSHORN DERICK
[A] US 1988085 A 19350115 - ORLANDO SALVATORE P
[A] US 2181831 A 19391128 - MCLAUGHLIN JR ROBERT W
[A] US 3191726 A 19650629 - JOHN PAVLECKA
[A] US 4378617 A 19830405 - BURNS GERARD [NZ]

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0263628 A2 19880413; EP 0263628 A3 19890315; AU 7927387 A 19880414; BR 8705471 A 19880524; IL 80236 A0 19870130; IL 80236 A 19930221; JP S63156160 A 19880629; NO 874179 D0 19871005; NO 874179 L 19880407; OA 08668 A 19881130; ZA 877241 B 19880325

DOCDB simple family (application)

EP 87308547 A 19870928; AU 7927387 A 19871001; BR 8705471 A 19871005; IL 8023686 A 19861006; JP 25005487 A 19871005; NO 874179 A 19871005; OA 59202 A 19870930; ZA 877241 A 19870925