| 摘要 |
Device for lifting and handling objects, especially cylindrical ones, comprising a lifting arm (1;1') provided with a lifting hook (5;5'), said arm being pivotably attached to a yoke (4;4'), oppositely disposed clamping shoes (6, 13;6', 13') being arranged on the lifting arm (1;1') and on the yoke (4;4'). What is characteristic of the invention are means (3a, 7, 7a, 8;3'a, 7', 7'a, 8') to lock the lifting arm (1;1') releasably against pivoting relative to the yoke (4;4') in a certain position of the lifting arm (1;1') and means (11, 12;11', 12';17, 17a) for eliminating the locking of the lifting arm (1;1') relative to the yoke (4;4'). |
