FR2683806A1 - HANDLE HOOK OF WELDED WELD. - Google Patents

Abstract

Handling hook in particular for welded mesh by a lifting device. According to the invention, the main hook (1) is associated with a locking hook (10) holding the hook (1) against transverse movements to avoid any detachment. Applications: Increased safety on construction sites.

Description

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  HANDLE HOOK OF WELDED WELD.

  The present invention relates to a handling hook intended in particular but not exclusively for the handling of welded mesh packets used in the

  building for the realization of slabs.

  The use of such trellises is growing more and more The packages or piles of trellis coming out of the factory are transported on trucks or on wagons and they are unloaded on the site This unloading is carried out by means of such as cranes present on the construction site For this purpose, a crane hook is connected to slings whose second end is secured to the stack of lattice Currently, this fastening is effected by artisanal means such as wire twisted to form a loop around a part of the trellis The slings allow to attach the stack of trellis substantially in the corners of said stack But, this way of proceeding causes accidents by detachment or

breakage of the connecting wires.

  The present invention aims to overcome this disadvantage and to ensure greater safety on construction sites. According to the present invention, the handling hook comprising a head, an elongated rod and a curved foot is characterized in that a second locking hook is articulated on the rod, the second hook being mounted on the rod via a spring to hang on to

  inside the upper mesh of the stack.

  Under these conditions, the first hook is brought to the bottom of the mesh stack and penetrates inside the mesh of a few lattices while the locking hook -2- is hooked on top of said stack. to prohibit any deflection and any detachment of the main hook Of course, the main hook is calculated so that its resistance corresponds to

  the desired load with the prescribed safety degrees.

  Other features and advantages of the invention

  will appear in the following description of

  particular embodiment given by way of non-limiting example with reference to the figures which represent FIG. 1 represents in elevation a hook according to the invention;

  Figure 2 a diagram showing the mounting of said hook.

  In Figure 1, we see that the handling hook consists of a main hook 1 extending upwardly by a rod 2 and ending with a head 3 which is simply a crushed head pierced with a hole on which can to be mounted a pear ring 4 Inside this ring passes the hook of a sling (not shown) The radius of curvature of the hook 1 is such that it can come to surround a

  or two parallel wires constituting the lattice.

  According to the invention, a locking or safety hook 10 is mounted on the rod 2 In the example

  shown, this assembly is performed as follows.

  During the forging of the main hook is substantially provided to two-thirds of the rod from the top a flattening 5 which is then pierced The height of the attachment of the locking hook above the main hook substantially corresponds to the height of two packets of lattice , this height being given only as an indication The locking hook can be fixed on the rod by any means and, for example, by a quick link -3- or line cut It has no carrier function but maintains a permanent gripping and prohibits any deflection of the carrier hook which could lead to the recess of the packet Inside the hole 5a is mounted a chain 6 This chain 6 is connected at its other end to a sheath 7 enclosing a spring 8 which ends with a loop 9 inside which is pivotally mounted the locking hook 10 The locking hook 10 has an inner orifice whose diameter corresponds to the diameter of the wire of the most common trellises so that said hook can be easily attached to a wire of the welded mesh The sheath 7 may have a bend in the vicinity of the hook to prevent the friction thereof on the upper trellis. the laying, the wire on which is hooked the hook 10 is such that this attachment corresponds to a tension of the spring 8 The mesh stack can be raised and without any movement of the main hook 1 that is without

  possibility for him to get off the pile.

  Safe handling when lifting one or more

  trellis packets is thus ensured.

  FIG. 2 shows a hook according to the invention in position on a packet of lattice P at an angle thereof.

  sling 11 is attached at the top of the hook rod 2.

  Such a hook can also be used for the handling of a single lattice after disengagement thereof from the stack. This lattice is maintained as in the case of a lattice.

battery.

  It goes without saying that many variants can be introduced, in particular by substituting technically equivalent means without departing from the scope.

of the invention.

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Claims (2)

  1 Handling hook including wire mesh can be connected to a sling with other identical hooks, characterized in that it comprises a curved foot (1), a rod (2) and a head (3), and locking means of the rod on a trellis in transverse direction.   2 hook according to claim 1, characterized in that the locking means consist of a second hook (1 O) mounted on the rod (2) by means of a   spring (8) followed by a chain (6).