Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Fastener securing element – Having elastomeric material
Patent
1992-09-14
1994-08-23
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Fastener securing element
Having elastomeric material
411 73, 411182, 52698, F16B 2100
Patent
active
053402570
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an accessory spacing element for dowel anchoring devices for wall covering slabs.
It is currently common to cover walls with slabs, generally made of marble, which are associated with said walls by means of various types of anchorings which are fixed by means of screw anchors.
One type of these anchoring devices comprises a bracket which is fixed to the wall by means of a screw anchor and which supports an internally threaded tubular element inside which a complementarily threaded pivot is screwed; said pivot protrudes with a flattened end which is arranged conveniently parallel to the floor.
Said flattened end is crossed by a hole in which a dowel is inserted.
During the installation of the slabs, said flattened end is arranged between the edges of two consecutive slabs, and the dowel is inserted with both of its ends in adapted holes of said slabs, engaging them.
The arrangement of the assembly must be performed so that the device, by means of the flattened end of the threaded pivot, bears the vertical load transmitted by the slab arranged above it and acts as a horizontal retainer for the lower slab.
Due to this reason, the upper slab rests on the flattened end, whereas a certain play is left between said flattened end and the lower plate.
This causes difficulties in correctly mutually aligning the various slabs and in providing constant-width gaps.
SUMMARY OF THE INVENTION
The aim of the present invention is to make the installation of wall covering slabs easier, more rapid and precise.
A consequent primary object is to provide an accessory spacing element which can be applied without difficulty to known dowel devices for anchoring wall covering slabs.
Another important object is to provide an accessory spacing element which allows perfect alignment of the slabs and the provision of constant-width gaps without requiring measurement and adjustment operations.
Still another object is to provide an accessory spacing element which can be manufactured easily and has a low cost.
This aim, these objects and others which will become apparent hereinafter are achieved by an accessory spacing element for dowel anchoring devices for wall covering slabs, characterized in that it comprises a tubular body made of plastic material to be interposed between the dowel and the respective accommodation seat of the slab, said body having, at one end, an elastically deformable frustum-shaped annular flange.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the present invention will become apparent from the detailed description of an embodiment thereof, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
FIG. 1 is a perspective view of a dowel anchoring device with accessory spacing elements according to the invention;
FIG. 2 is a perspective view of the accessory spacing element according to the invention;
FIG. 3 is a bottom view of the element of FIG. 2;
FIG. 4 is a longitudinally sectional perspective view of the element of FIG. 2;
FIG. 5 is a view of the fitting of the anchoring device of FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference to the above figures, the accessory spacing element according to the invention is generally designated by the reference numeral 1 and comprises a tubular cylindrical body 2 made of plastic material which is internally and externally provided with longitudinal wings, respectively 3 and 4, which extend respectively from the median region to one end and from the median region to the opposite end.
Conveniently, said wings 3 and 4 have a substantially triangular cross-section.
Said body 2 is provided, at the end at which said external wings 4 end, with a frustum-shaped annular flange 5 which extends toward the opposite end and has characteristics of elastic deformability. More in detail, as clearly illustrated in FIGS. 3 and 4, the tubular cylindrical body 2 of the spacing element 1 has an end 20, an opposite end 21, a median region 22, an interna
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Fischer Italia S.a.s. di Paolo Morassutti & C.
Josif Albert
Lindsey Rodney M.
Modiano Guido
O"Byrne Daniel
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