| 摘要 |
An automatic coupling device for connecting and disconnecting respectively a loading platform (12) from a lifting hook (17) which by means of hoisting cables (16) is operated by a hoisting crane for transferring the loading platform (12). Inside the outercasing (15) of the coupling device a connecting mechanism is provided for engaging and detaining a connecting head (1) provided on a central extension rod (13) of the loading platform (12), which connecting mechanism comprises two towards each other pivotally mounted legs (2 and 6 respectively), which by one of their end portions are pivotally mounted (at 7) in the outer casing (15) and the free end portions of which thereby may be swung towards each other and away from each other respectively. The legs (2 and 6 respectively) are provided with clutch jaws (37) which in the connected condition are intended to engage a narrow portion positioned below a thickened main portion of the connecting head (1) of the loading platform (12), and with a lock mechanism (5) which in the open condition for the connecting mechanism maintains the legs (2 and 6 respectively) at a distance from each other but which in the connected condition for the connecting mechanism is brought aside in such a way that the legs (2 and 6 respectively) are positioned close to each other by their free ends and in such a way that their clutch jaws (37) are in an active connecting position. |
