GRUE OU APPAREIL DE MANIPULATION SIMILAIRE AVEC ENSEMBLE INTÉGRÉ POUR SURMONTER CHAQUE POSITION DE POINT DE REPOS ENTRE UNE PARTIE PRIMAIRE ET UNE PARTIE SECONDAIRE DE SON BRAS OPÉRATIONNEL

摘要

Crane or similar manipulating apparatus with integrated assembly (10) for overcoming each dead position between primary (11) and secondary part (12) of its operational arm (1), comprising at least a sufficiently rigid bearing framework, which is adapted for attachment to a suitable chassis and is optionally furnished with at least two optionally telescopic supporting legs, at least approximately vertically arranged and sufficiently rigid bearing mast, which is in the area of its first end portion connected with said bearing framework, while in the area of its second end portion an operating arm (1) is attached in a pivot point (91), in which said arm is pivotable around the horizontal axis. Said operational arm (1) consists of a primary part (11) and a secondary part (12), which are pivotally connected with each other. Said secondary part (12) is in the area of said pivot point (92) pivotally around the horizontal axis connected with the primary part (11) of the operational arm (1) by means of a dead position overcoming assembly (10), wherein said assembly (10) comprises a rotational driving means (4) as well as of a mechanism (5), which is suitable for attachment of that part of a hydraulic cylinder (13) for pivoting of the secondary part (12) relatively to the secondary part (12) of the operational arm (1), which is attachable to said second part (12) of the arm (1).