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1. WO2001001032 - TUBULAR CONNECTION

Publication Number WO/2001/001032
Publication Date 04.01.2001
International Application No. PCT/MD2000/000001
International Filing Date 27.06.2000
IPC
E FIXED CONSTRUCTIONS
04
BUILDING
G
SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
7
Connections between parts of the scaffold
30
Scaffolding bars or members with non-detachably fixed coupling elements
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
37
Couplings of the quick-acting type
24
in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action
244
the coupling being co-axial with the pipe
252
the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
E04G 7/30 (2006.01)
F16L 37/252 (2006.01)
CPC
E04G 7/301
Applicants
  • BOGUSLAVSKY, Nikolai Borisovich [MD/MD]; MD
Inventors
  • BOGUSLAVSKY, Nikolai Borisovich; MD
Priority Data
99-018528.06.1999MD
Publication Language Russian (RU)
Filing Language Russian (RU)
Designated States
Title
(EN) TUBULAR CONNECTION
(FR) RACCORD TUBULAIRE
Abstract
(EN)
This invention relates to the building industry and can be used for quickly connecting tubular elements such as risers and stringers during the erection of scaffoldings. According to the invention, a tubular connection contains two tubular elements which are to be joined. At one end of the tubular element in the region of junction, the diameter thereof is smaller than the internal diameter of the other end for the value of a predetermined gap. The external surface of said region of junction contains at least one rib containing a longitudinal and an inclined parts. The other end of the tubular element contains protrusions on the internal side thereof; the number of such protrusions corresponds to the number of ribs and the size and shape thereof correspond to the cross-section of the ribs. The invention allows for enhancement of the strength of the region of junction of tubular elements and creates more reliable tubular connections.
(FR)
L'invention se rapporte à l'industrie de la construction et peut être utilisée pour effectuer un raccordement rapide de pièces tubulaires telles que les montants et les longrines lors du montage d'un échafaudage. Selon cette invention, le raccord tubulaire comprend deux pièces tubulaires à raccorder. A l'une des extrémités d'une pièce tubulaire, son diamètre dans la zone de raccordement est inférieur au diamètre intérieur à l'autre extrémité d'une valeur d'intervalle prédéterminée. La surface extérieure de cette zone de raccordement contient au moins une nervure qui comporte une partie longitudinale et une partie inclinée. L'autre extrémité de la pièce tubulaire comporte sur son côté intérieur des saillies dont le nombre correspond à celui des nervures et dont les dimensions et la forme correspondent à la coupe transversale des nervures. L'invention permet d'assurer une plus grande résistance dans la zone de raccordement des pièces tubulaires et une plus grande fiabilité des raccords tubulaires.
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