The present application claims priority to and the benefit of Australian Patent Application No. 2021205063, filed Jul. 14, 2021, the entire contents of which are incorporated herein by reference.
The present disclosure relates to an anchor for concrete.
It is known to provide an anchor for embedment in concrete for lifting of concrete parts. However, the applicant has identified that it would be advantageous to have an improved anchor with optimised performance.
In particular, the applicant has identified that it would be beneficial to provide an anchor with improved strength and performance by way of varying a configuration of a head portion of the anchor.
Examples of the present disclosure seek to provide an improved anchor for concrete which obviates or at least ameliorates one or more disadvantages of existing anchors.
In accordance with one aspect of the present disclosure, there is provided an anchor for embedment in a concrete body for lifting the concrete body, wherein the anchor includes a head having a lifting aperture for engagement with a lifting device, and a pair of legs adapted for embedment within the concrete body, wherein the head has an additional aperture having at least a portion of the additional aperture bordered by a rib.
Preferably, a lower end of the additional aperture is bordered by a curved part of the rib. More preferably, the curved part of the rib terminates at each end in a straight rib. Even more preferably, the straight ribs are mutually parallel. In one form, the straight ribs run parallel with a longitudinal axis of the anchor.
In accordance with another aspect of the present disclosure, there is provided an anchor for embedment in a concrete body for lifting the concrete body, wherein the anchor includes a head having a lifting aperture for engagement with a lifting device, and a pair of legs adapted for embedment within the concrete body, wherein a lower edge of the head is provided with a cross rib which extends between the pair of legs.
Preferably, the cross rib is indented upwardly at a central portion thereof.
In accordance with another aspect of the present disclosure, there is provided an anchor for embedment in a concrete body for lifting the concrete body, wherein the anchor includes a head having a lifting aperture for engagement with a lifting device, and a pair of legs adapted for embedment within the concrete body, wherein the head has an additional aperture having at least a portion of the additional aperture bordered by a border rib, wherein a lower edge of the head is provided with a cross rib which extends between the pair of legs, and wherein webbing extends between the border rib and the cross rib such that a cross-section along a longitudinal axis of the anchor between the cross rib and the border rib forms an I-beam.
In accordance with yet another aspect of the present disclosure, there is provided an anchor for embedment in a concrete body for lifting the concrete body, wherein the anchor includes a head having a lifting aperture for engagement with a lifting device, and a pair of legs adapted for embedment within the concrete body, wherein the head is provided with a neck formed such that a narrowest part of the neck lies in a transverse plane travelling through the lifting aperture.
The present disclosure is further described by way of non-limiting example only with reference to the accompanying drawings, in which:
As can be seen in
More specifically, as shown in
With reference to
In the example shown, the head 12 has webbing 36 extends between the border rib 24 and the cross rib 30 such that a cross-section along a longitudinal axis of the anchor 10 between the cross rib 30 and the border rib 24 forms an I-beam (see
The head 12 may be provided with a neck 38 formed such that a narrowest part of the neck 38 lies in a transverse plane (transverse to a longitudinal axis of the anchor 10) travelling through the lifting aperture 20.
Advantageously, the applicant has determined that an anchor 10 formed in accordance with an example of the present disclosure may provide greater rigidity, with more resistance to folding at the neck 38. In addition, the border rib 24 forms a flange which adds extra rigidity to the head 12 in shear. The position and format of the cross rib 30 running across the anchor 10 have been configured to create an I-beam section between the tension bar hole 22 and the throat of the anchor 10. Furthermore, the applicant has run and outer flange 40 of the anchor 10 as far as possible up onto the head 12 of the anchor 10 to maximise the I-beam type strength/rigidity. Accordingly, the neck 38 of the anchor 10 is brought much closer to the top of the head 12. In this way, the neck 38 is much wider, significantly increasing rigidity through the neck 38.
While various embodiments of the present disclosure have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. It will be apparent to a person skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the present disclosure. Thus, the present disclosure should not be limited by any of the above described exemplary embodiments.
he reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
Number | Date | Country | Kind |
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2021205063 | Jul 2021 | AU | national |