ANCHOR FOR HANDLING BUILDING ELEMENTS, IN PARTICULAR A CONCRETE PANEL
A handling anchor, for lifting, raising, turning over, transporting, and laying building elements, such as precast blocks or panels, essentially made of concrete and to be connected to a building element. The anchor includes a connecting head for connecting the building element to a handling machine, and a body portion including active parts that, when the anchor is connected to the construction element, ensure the adhesion of the anchor to the material of the building element. The body includes at least one land including at least one face.
The invention relates to a handling anchor, notably for raising lifting, turning over, transporting and laying building components, such as prefabricated blocks and panels notably in concrete, intended to be made integral with the building member and of the type comprising a head for hooking up the building components to a handling machine and a body portion including active portions which, when the anchor is made integral with the building member, provides adhesion of the latter to the material of the building member.
BACKGROUNDThe anchors of this type, which are known, have the drawback of being made according to relatively costly methods and therefore unsuitable for allowing adaptation of the shape of the anchor to the characteristics of the prefabricated components to be handled.
SUMMARY OF THE INVENTIONThe object of the invention is to overcome this drawback. In order to achieve this goal, the anchor according to the invention is characterized in that its portion forming the body of the anchor includes at least one flat provided with at least two facets.
According to one feature of the invention, the anchor is characterized in that an aforementioned flat includes a plurality of facets which follow by forming a zigzagged sequence.
According to another feature of the invention, the anchor is characterized in that the anchor includes two flats assembled to each other.
According to another feature of the invention, the anchor is characterized in that the anchor includes a head for hooking up to a handling machine, which forms a separate part on which both flats are mounted.
According to still another feature of the invention, the anchor is characterized in that the flats have identical or different shapes.
According to still another feature of the invention, the anchor is characterized in that the member forming the head is of a different shape adapted to the means for gripping the anchor.
According to still another feature of the invention, the anchor is characterized in that it includes side wings, one of which protrudes from each flat.
According to still another feature of the invention, the anchor is characterized in that the wings are part of a separate part added on the anchor with assembled flats.
According to still another feature of the invention, the anchor is characterized in that the separate part has a central portion with a cross-section in the shape of an advantageously U-shaped adapted or circular groove in order to be engaged on the assembled flats.
According to still another feature of the invention, the anchor is characterized in that the aforementioned flat is axially cut out from its head in order to form two strips as a sequence of zigzagged facets, the corresponding facets of both sequences being tilted in opposite directions.
According to still another feature of the invention, the anchor is characterized in that the facets have a tilt angle relatively to the longitudinal direction of the anchor, an angle from 10 to 85°.
According to still another feature of the invention, the anchor is characterized in that the wings are part of a separate part which is provided with a foot portion and added on a head-forming part.
According to still another feature of the invention, the anchor is characterized in that the separate part includes a central portion with a cross-section in the form of a U-shaped groove for engaging on the head portion, advantageously in the form of a circular U.
According to still another feature of the invention, the anchor is characterized in that the central portion, the wings and the foot are obtained by folding an original blank component.
The invention will be better understood and other objects, details and advantages thereof will become more clearly apparent in the explanatory description which follows, made with reference to the appended schematic drawings, only given as an example illustrating several embodiments of the invention and wherein:
The anchor devices according to the invention have been designed in order to allow handling, notably raising, lifting, turning over, transporting and laying, of building components such as prefabricated blocks or panels in concrete.
The facets 14, 15, 16 combined with the developed surface of the flat allow the concrete to be stressed both upon adhesion and right-angled shearing of the anchorings generated by the facets. It should be noted that the flat head comprises discontinuities in its front face which are also provided on the other heads of this type without being however illustrated. It is noticed that the building component according to
It is easily understood that, by means of the multitude of facets, the anchor according to
The separate head component 32 is in the shape of a plate, the upper portion of which includes a hole 41 for hooking up to a handling machine and a base portion 42 which includes on each lateral side a vertical lug 43 intended to pass, during the mounting of both flats 30, 31 on the head 32, through cut-outs 44 of complementary shape, provided in the respective tilted portion 33, 37 of both flats. Each lug 43 is cut out in the flat part 32 which forms the head. The lugs extend in the axis of the anchor and the bottom of the interior vertical cut-out extends up to a depth adapted to the tilt of the face 33 or 37 of the flat so that support from the flat is optimum.
With this structure of an anchor which may be achieved by mounting flats with either identical facets or not on a separated part, which then forms the head of the anchor, the shape of which may be selected according to the means for gripping the anchor, it is possible to obtain an anchor structure perfectly adaptable to conditions of its use.
The particularity of this anchor structure according to
Close to its upper end, each anchor flat 46, 47 includes in its rectilinear upper portion 48, a bore, for example of rectangular shape 52, for mounting the flat on a separate head member 54 which comprises, close to its base, on two opposite suitable side faces, a lug 55 with a parallelepipedal shape, complementary to the shape of the bore 52. As seen in
The anchor structure illustrated in
As this emerges from the description which has just been made and from the figures, the anchor according to the invention has major advantages as compared with anchors of the state of the art. In this connection, it is essential that the anchor be formed by one or two flats with identical of different shapes, the section, length, width and height of which may be adjusted according to the technical geometrical characteristics of the panels. The one-piece-shaped joined or juxtaposed flats comprise one or more facets obtained by folding by an angle from 10 to 85°. These single or joined facet flats simultaneously increase the adhesion surface, stress the concrete upon compression by inner and outer faces of the facets and upon shearing at right angles to the anchorings. The anchor creates a compressed mass inside the facets in the case of joined flats. The anchor may operate during raising, lifting, turning over and oblique tensioning without notably adding strengthening irons. The head of the anchor may be of the spherical, flat, threaded bushing type, and may be connected to a lifting ring. The head of the anchor may be used for positioning the anchor before pouring the concrete.
Claims
1. A handling anchor comprising:
- a head for hooking a building component to a handling machine, and
- a body portion including active portions which, when the anchor is integral with the building component, provides adhesion of the anchor to the building component, wherein the body of the anchor includes at least one flat including at least one facet.
2. The anchor according to claim 1, wherein the flat includes a plurality of facets in a zigzagged sequence.
3. The anchor according to claim 1, including two flats assembled to each other.
4. The anchor according to claim 3, wherein the anchor includes a head for hooking to a handling machine, the head being a separate part on which the two flats are mounted.
5. The anchor according to claim 3, wherein the flats have identical or different shapes.
6. The anchor according to claim 4, wherein the head has a shape for gripping of the anchor.
7. The anchor according to claim 3, including side wings, one wing protruding from each flat.
8. The anchor according to claim 7, wherein the wings are part of a separate part added to the anchor with assembled flats.
9. The anchor according to claim 8, wherein the separate part has a central portion with a cross-section in a shape for engagement with the assembled flats.
10. The anchor according to claim 1, wherein the flat is axially cut from the head by forming two strips in sequences of zigzagged facets, the facets of both sequences being tilted in opposite directions.
11. The anchor according to claim 2, wherein the facets have a tilt angle, relative to a longitudinal direction of the anchor, of from 10° to 85°.
12. The anchor according to claim 7, wherein the wings are part of a separate part including a foot portion and added on a head-forming part.
13. The anchor according to claim 12, wherein the separate part includes a central portion with a cross-section in the shape of a groove engaging the head portion.
14. The anchor according to claim 13, wherein the central portion, the wings, and the foot are produced by folding.
Type: Application
Filed: Dec 22, 2006
Publication Date: Mar 11, 2010
Inventor: Marcel Arteon (Bayonne)
Application Number: 12/519,537
International Classification: E04G 21/16 (20060101);