EP 0137429 A3 19870311 - ASSEMBLING KNOT FOR A THREE-DIMENSIONAL FRAMEWORK, AND THREE-DIMENSIONAL FRAMEWORK COMPRISING SUCH A KNOT
Title (en)
ASSEMBLING KNOT FOR A THREE-DIMENSIONAL FRAMEWORK, AND THREE-DIMENSIONAL FRAMEWORK COMPRISING SUCH A KNOT
Publication
Application
Priority
AT 360583 A 19831010
Abstract (en)
[origin: EP0137429A2] 1. Joint connection for frameworks, especially of steel constructions with more than two rods, which are formed as round tubes (2) and are connected together in a joint by means of screw connections arranged on the tube axes, wherein the ends of the round tubes (2) converging to a joint have an external thread (10) and are fixed to a joint piece (1) by means of sleeve nuts (11) on projections of the joint piece (1) with external threads (13), characterized in that the root diameter (d1 ) of the external threads (10) provided at the ends of the round tubes (2) is at least as large as the outer diameter (D) of the round tubes (2), in that the cross-sectional surface and the bending stiffness of the round tubes (2) in the region of the external threads (10) of the same is at least as large as in the remaining part of the round tubes (2), in that the clear width of the sleeve nuts (11) is at least as large as the outer diameter (D) of the round tubes (2), so that they are slidable over or rotatable on the round tube (2), and in that the length of the thread (12) of the sleeve nut (11) is substantially equal to the sum of the lengths of the external threads (13; 10) on the projections and on the ends of the round tubes (2).
IPC 1-7
IPC 8 full level
E04B 1/19 (2006.01); E04B 1/342 (2006.01); E04B 1/58 (2006.01); E04B 1/94 (2006.01)
CPC (source: EP)
E04B 1/1906 (2013.01); E04B 1/58 (2013.01); E04B 2001/1927 (2013.01); E04B 2001/196 (2013.01); E04B 2001/1984 (2013.01)
Citation (search report)
- [A] FR 2274744 A1 19760109 - MANNESMANN ROEHREN WERKE AG [DE]
- [A] GB 395931 A 19330727 - ALEXANDER HERMAN
- [A] FR 2317717 A1 19770204 - MENABE EDME [FR]
- [A] DE 850946 C 19530129 - THOMAS KURT
- [A] US 2578364 A 19511211 - MAXON JR GLENWAY
- [A] FR 1009812 A 19520604
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0137429 A2 19850417; EP 0137429 A3 19870311; EP 0137429 B1 19900321; AT 379190 B 19851125; AT A360583 A 19850415; AT E51260 T1 19900415; CA 1251321 A 19890321; DE 3481721 D1 19900426; JP S60238548 A 19851127; ZA 847862 B 19850626
DOCDB simple family (application)
EP 84111614 A 19840928; AT 360583 A 19831010; AT 84111614 T 19840928; CA 464922 A 19841009; DE 3481721 T 19840928; JP 21241484 A 19841009; ZA 847862 A 19841008