Arrangement for controlling the direction of movement of a load

Details Arrangement for controlling the direction of movement of a load Arrangement for controlling the direction of movement of a load

1991-10-30

1994-09-27

Huppert, Michael S.

Traversing hoists

With haul-in line

212205, 212209, 200 5R, 200 6A, B66C 1312, H01H 926

Patent

active

053500750

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to an arrangement for a load hoist which consists of a load device capable of being supported by a lifting cable, etc., and driving means arranged for the driving of the load device in a horizontal direction.
The principal object of the present invention is, in the first place, to make available an arrangement of the kind referred to above which permits the drive for the load device to be influenced in a lateral sense through the lateral movement of the lifting cable.
Said object is achieved by means of an arrangement in accordance with the present invention, which is characterized essentially in that the driving means is so arranged as to be capable of actuation by the movement of the lifting cable in the lateral sense in order to be capable of displacing a supported load device together with the associated load in question in the appropriate direction on the intended occasions, for example when the load personnel are manoeuvring the load device manually and are causing it to move in the direction in which it is wished to move the load by means of the driving means referred to.
The invention is described below as a number of preferred embodiments, in conjunction with which reference is made to the drawings, in which
FIG. 1 shows a partially sectioned view of a cable movement transmission element;
FIG. 2 illustrates diagrammatically an example of a lifting cable supported on a scissor arm;
FIGS. 3-4 illustrate diagrammatically an example of a lifting cable supported on overhead crane trolleys;
FIG. 3 shows a section through the trolley;
FIG. 3A shows the lifting cable and its patterns of movement from one side, rotated through approximately 90.degree. from its actual direction of movement;
FIG. 4 illustrates the overhead crane trolley viewed from above, with the pattern of movement of the trolley indicated;
FIGS. 5-9 similarly illustrate an example of a lifting cable supported by overhead crane trolleys, where
FIG. 5 shows a view from above of the travelling crane trolleys;
FIG. 6 shows a side view of the overhead crane trolleys along the arrows VI--VI in FIG. 5;
FIG. 7 shows a partially view of a cable movement transmission element applied in the example in accordance with FIGS. 5-9;
FIG. 7A shows a perspective view of a load lifting device;
FIG. 8 illustrates the cable movement transmission element in greater detail;
FIG. 9 shows the load lifting arrangement in a perspective view looking from above at an angle;
FIGS. 10-11 illustrate examples of a pivoting load hoist running along tracks;
FIG. 10 shows a load lifting arrangement in a perspective view from the side looking from below;
FIG. 11 finally shows said load lifting arrangement in a perspective view looking from the front.
A load hoist 1, preferably of a kind capable of manual operation, for example with driving means capable of being controlled electrically or by other means, such as can be appreciated from SE-B 8502716-7 (publ nr 453 589), for example, may be suitable for application to an arrangement 2 of the intended kind in accordance with the present invention, which consists of a load device 4, for example a hook, magnet, suction component, etc., capable of being supported by a lifting cable 3, together with driving means 5 arranged for driving the load device 4 in a horizontal direction 6, 7.
Suitable preferred solutions, in which the load device 4 can be applied so that it is capable of lateral displacement, are illustrated in FIG. 2, FIGS. 3-4, FIGS. 5-6 and FIGS. 10-11.
In the case of a first illustrative embodiment I, which is illustrated in FIG. 2, a load device 4 is supported at one end 8A of a lifting and swinging arm 8, the function of which permits lateral variation 6-7 in its length, which arm consists of a so-called scissor arm in the illustrated example, although other types of arm whose length can be varied between a contracted storage position, for example, and an extended position ready for lifting can be considered, for example a telescopic arm or a so-called flexible arm, although these latter

REFERENCES:
patent: 2675131 (1954-04-01), Osojnak
patent: 2940608 (1960-06-01), Underwood et al.
patent: 3084805 (1963-04-01), McKinnon
patent: 4291213 (1981-09-01), Felland et al.
patent: 4520894 (1985-06-01), Hensler
patent: 4723458 (1988-02-01), Blok

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