Static structures (e.g. – buildings) – Assembled in situ-type anchor or tie
Patent
1996-08-14
1997-07-22
Mai, Lanna
Static structures (e.g., buildings)
Assembled in situ-type anchor or tie
52766, 24522, 2482282, 24823131, E04B 158
Patent
active
056494041
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device of the type disclosed in the preamble to the attached claim 1.
WO 93/15285 reveals as previously known a beam anchoring device of the above mentioned type, comprising a lock-wedge bracket intended to straddle e.g. an I-beam, and which is mountable in any position on the beam. Said bracket has a short leg and a long leg, forming a 90.degree. angle to each other. A flange on the short leg is angled 90.degree. and the outer edge of the long leg is bent essentially 105.degree.. The latter thus acts as a spring to force a locking wedge against the lateral edge of a beam.
The known beam anchoring device more than fulfills the safety requirements applying in the building industry, e.g. for use as a bracken for posts for protective railings on both horizontal and vertical beams or for connecting two cross beams to each other, thereby using two brackets with their outer surfaces joined to each other.
In certain cases it can, however, be desirable to fulfil even higher requirements. One example thereof is when the bracket is to be loaded by forces in varying directions. This occurs, for example, if the bracket is used to anchor posts for a protective railing, separating two work areas from each other, e.g. for concrete casting. Another example is when the railing is to be mounted on beam ends projecting from the edge of a floor structure, and it is desirable to also take up forces acting in the longitudinal direction of the railing, or wind loads acting on the railing, regardless of how the bracket has been oriented when mounted on the beam.
SUMMARY OF THE INVENTION
A purpose of the invention is therefore to achieve a bracket of the above mentioned type, with which it is possible to absorb substantially greater bending moment than previously from a post welded to the bracket, for example, said moment acting from the wedge towards the post.
This purpose is achieved by a bracket of the type described by way of introduction which has the characterizing features disclosed in the attached claim 1. Advantageous further developments and improvements of the invention are disclosed in the subclaims.
BACKGROUND OF THE INVENTION
The invention will be described below in more detail with reference to the accompanying schematic drawings. Similar components will have the same reference numerals in the different figures.
FIG. 1 shows a vertical view of the bracket as seen from one end,
FIG. 2 shows a vertical view of a hook belonging to the bracket,
FIG. 3 shows the hook shown in FIG. 2, in section,
FIG. 4 shows the mounting of the bracket on an I-beam,
FIG. 5 shows a variant of the hook, in perspective, and
FIG. 6 shows the bracket with the hook of FIG. 5, during the mounting of an I-beam.
DETAILED DESCRIPTION OF THE INVENTION
Similar to what is described in WO 93/15285, an I-beam 2 has a web 4, an upper flange 6 and a lower flange 8, on which beam a lock-wedge bracket 10 is to be anchored. The lock-wedge bracket comprises a first short leg 12 and a second long leg 14, which are joined to each other forming an angle .alpha.. The distal ends of the legs are each bent predetermined angles .beta. and .gamma., respectively, thus forming an angle flange 16 and a pressure spring 18, respectively. Both the angle .gamma. and the angle .beta. are preferably 90.degree., while the angle .gamma. is preferably within the range 70.degree.-75.degree.. A rounded ridge 20 is thereby formed on the distal end of the long leg 14. A slot 22 runs essentially longitudinally to the long leg from the ridge 20 substantially half the length of the leg approximately along the centerline of the long leg 14. The slot is made so that a wedge 23 is freely movable therein between two end positions. The wedge has a hammer plate 24, two lateral edges 25,26, a wedge point 27 and a lock pin 28. Freely movable within the slot there is also a hook 29 which has a body 30 and a lip 31 extending substantially perpendicular from the lower end of the body. The upper half of the body has notches 32 and 3
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Combisafe International AB
Mai Lanna
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