EP 0225299 A2 19870610 - Improved bar for plane lattice spatial structures without junction knots.
Title (en)
Improved bar for plane lattice spatial structures without junction knots.
Title (de)
Stab für flache Strukturen aus räumlichen Fachwerken ohne Knotenpunkte.
Title (fr)
Barre pour structures planes en treillis spatiales sans noeuds de liaison.
Publication
Application
Priority
IT 2310885 A 19851205
Abstract (en)
Some embodiments are described of an improved bar or rod (1, 1 min ) adapted to form planar three-dimensional single or multiple layered lattice structures, without the need for connecting knots. The coupling among the various rods is simply performed by fastening together the X-shaped, substantially radially oriented flanges (5) of said bars. The relative angle theta between couples of rod flanges (5), which defines the geometrical coupling planes, and therefore the contact surfaces between two bars converging with their axes into the center of a virtual node (0), has to satisfy a predetermined relationship among the direction cosines (a, b,c) of said axes, each of which is coincident with the axis of a sheaf of planes corresponding to said flanges whose angular orientation has to be determined. An improved fastening means (7, 11) is also described, particularly adapted to fasten converging bar flanges (5) to each other, in view of the narrow room available.
IPC 1-7
IPC 8 full level
E04B 1/19 (2006.01)
CPC (source: EP)
E04B 1/19 (2013.01); E04B 2001/1933 (2013.01); E04B 2001/1936 (2013.01); E04B 2001/1975 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0225299 A2 19870610; EP 0225299 A3 19870826; EP 0225299 B1 19901010; DE 3674889 D1 19901115; IT 1186403 B 19871126; IT 8523108 A0 19851205
DOCDB simple family (application)
EP 86830363 A 19861205; DE 3674889 T 19861205; IT 2310885 A 19851205