EP 0536060 A1 19930407 - Crane jib which folds automatically.
Title (en)
Crane jib which folds automatically.
Title (de)
Selbsttätig klappbarer Kranausleger.
Title (fr)
Flèche à repliage automatisé pour grue.
Publication
Application
Priority
FR 9112383 A 19911002
Abstract (en)
The jib (10) comprises a jib base (11), an intermediate jib-folding element (12) and a jib tip (13), which are articulated to each other (at 14, 15) at the level of their lower members. The intermediate element (12) is connected to the jib base (11) by a motorised member (36) controlling its pivoting about the axis of articulation (14). The jib tip (13) is connected to the jib base (11) by a coupling assembly (40) having three articulated members (41, 42, 43), the central member (41) of this assembly being connected by articulation to a fixed point of the intermediate element (12) and causing the jib tip (13) to pivot about the axis of articulation (15). Application to the production of automatically erected tower cranes. <IMAGE>
Abstract (fr)
La flèche (10) comprend un pied de flèche (11), un élément intermédiaire de pliage de flèche (12) et une pointe de flèche (13), articulés les uns aux autres (en 14,15) au niveau de leurs membrures inférieures. L'élément intermédiaire (12) est relié au pied de flèche (11) par un organe motorisé (36) commandant son pivotement autour de l'axe d'articulation (14). La pointe de flèche (13) est reliée au pied de flèche (11) par un ensemble d'accouplement (40) à trois organes articulés (41,42,43), l'organe central (41) de cet ensemble étant relié par articulation à un point fixe de l'élément intermédiaire (12) et provoquant le pivotement de la pointe de flèche (13) autour de l'axe d'articulation (15). Application à la réalisation de grues à tour à montage automatisé. <IMAGE>
IPC 1-7
IPC 8 full level
B66C 23/42 (2006.01); B66C 23/26 (2006.01); B66C 23/34 (2006.01); B66C 23/68 (2006.01); B66C 23/82 (2006.01)
CPC (source: EP)
B66C 23/34 (2013.01); B66C 23/68 (2013.01)
Citation (search report)
- [XD] FR 2368430 A1 19780519 - PINGON MANUBAT SA [FR]
- [AD] FR 2550176 A1 19850208 - POTAIN SA [FR]
- [A] DE 8433323 U1 19880630
Designated contracting state (EPC)
AT BE CH DE DK ES GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0536060 A1 19930407; EP 0536060 B1 19940706; AT E108166 T1 19940715; CN 1031457 C 19960403; CN 1085521 A 19940420; CZ 300292 A3 19930414; DE 69200225 D1 19940811; DE 69200225 T2 19941027; ES 2056007 T3 19940901; FR 2682097 A1 19930409; FR 2682097 B1 19950602; JP 2793932 B2 19980903; JP H05213583 A 19930824; RU 2083473 C1 19970710
DOCDB simple family (application)
EP 92420330 A 19920925; AT 92420330 T 19920925; CN 92112830 A 19920930; CS 300292 A 19921001; DE 69200225 T 19920925; ES 92420330 T 19920925; FR 9112383 A 19911002; JP 25824492 A 19920928; SU 5052675 A 19921001