Hook

Details Hook Hook

1992-11-04

1993-12-21

Sakran, Victor N.

Buckles, buttons, clasps, etc.

Separable-fastener or required component thereof

Including member having distinct formations and mating...

246001, 294 8233, A44B 1300, B66C 100

Patent

active

052711285

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to a safety hook of the kind which comprises a curved hook body having a hook opening which is defined by a U-shaped part, said hook body being pivotally connected to a hook head which carries a pivotal shackle device and which hook body in a first open position is held pivoted relative to the hook head so the hook opening is open, therewith enabling a load to be hooked onto the hook body, and wherein the hook body in a second, closed position is pivoted relative to the hook head such as to block the hook opening by means of an outwardly projecting barrier part of the hook head, and wherein a latching device is provided for releasably securing the hook body essentially in said second position.
Safety hooks of this general kind are known to the art. However, no hook which provides an attractive solution with regard to its function and manufacture and which is adapted to enable a load to be placed on the hook in a simple and secure fashion and which allows the hook to be releasably secured is not known to the art at this present time. The present invention relates to such a solution.
Thus, the invention relates to a safety hook which includes a curved hook body provided with a hook opening defined by a substantially U-shaped part and pivotally connected to a hook head which carries a pivotal shackle device, wherein the hook body, in a first, open, position, is held swung relative to the hook head so as to leave the hook opening open and therewith enable a load to be hooked onto the hook body, and wherein the hook body, in a second, closed, position, is swung relative to the hook head such that the hook opening is blocked by means of a barrier part which projects outwardly from the hook head, and wherein latching devices are provided for releasably securing the hook body essentially in said second position, and wherein the hook body is held in said first position by a spring force, and wherein the U-shaped part when subjected to a downwardly acting load, is arranged to swing against a spring force towards and into said second, closed position, said spring force striving to return the hook body to said first position and wherein the weight distribution on said hook is such that the opening defined by the U-shaped part is essentially horizontal in a vertical plane when the hook hangs substantially freely with no load acting thereon.
The hook is mainly characterized in that said latching devices include a pivotally mounted crook which includes a shoulder part which is intended to coact securingly with a shoulder part on the hook body, this securing coaction, by means of a latching member comprised by the latching devices, essentially preventing the crook from pivoting and by that means essentially preventing the hook part from swinging from said second position to said first position.
The invention will now be described in more detail with reference to an exemplifying embodiment thereof and with reference to the accompanying drawings, in which
FIG. 1 is a schematic sectional view of a first embodiment of an inventive hook taken essentially centrally and transversely of the pivot axes occurent on said hook;
FIG. 2 is a sectional view taken on the line A--A in FIG. 1, and
FIG. 3 is a sectional view taken on the line B--B in FIG. 1.
Illustrated in the Figures is a safety hook 1 which comprises a hook body 4 which has a hook opening 3 defined by means of an essentially U-shaped part 2 and which is pivotally connected, for example by means of a pivot axle 5, with a hook head 6 which carries a shackle device or like device 8 which is pivotally mounted, for example by means of a pivot axle 7, and from which the hook 1 is intended to hang. The hook body 4 is intended to be held swung in relation to the hook head in a first, open position, shown in broken lines in FIG. 1, so as to leave the hook opening 3 open and therewith enable a load to be readily hooked onto the hook body, and to be swung relative to the hook head in a second, closed position, shown in full lines in FIG. 1, such that th

REFERENCES:
patent: 2706318 (1955-04-01), Coffing
patent: 2987341 (1961-06-01), Peck et al.
patent: 3173718 (1965-03-01), Harley
patent: 3292226 (1966-12-01), Foster
patent: 4093293 (1978-06-01), Huggett
patent: 4294479 (1981-10-01), Archer
patent: 4358146 (1982-11-01), Goudey

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