Joints and connections – Having a joining piece extending through aligned openings in...
Patent
1987-01-21
1991-02-05
Kundrat, Andrew V.
Joints and connections
Having a joining piece extending through aligned openings in...
411 40, B25G 300
Patent
active
049900234
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention pertains to fastening means, and more particularly to a fastener and joining support combination for mounting sieve elements to a shaker.
BACKGROUND OF THE INVENTION
The connector of the present invention finds application in the ore manufacturing, building, and metallurgy industries.
UK Pat. No. GB 2,113,121 discloses a meshscreen having sieve elements mounted to a shaker gridiron. This patent discloses a connector consisting of fastener body, a securing plug, and a mounting element. The fastener body contains a cylindrical body having a collar on one end and a support collar on the other end. The cylindrical body is longitudinally slotted. The securing plug as well as an axial bore extending through the cylindrical body of the fixing collar are wave like in shape, having annular hollows and projections in close successions. A disadvantage of this meshscreen assembly is that it connects the sieve elements and the gridiron as one piece whereupon much time and effort is needed for detaching them due to the difficulty in pulling the fixing collar from the securing apertures of the joining supports. Another disadvantage is that the sieve elements are deformed during disassembly.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a connecting device for quick, easy and safe assembly and disassembly of sieve elements from a gridiron of a shaker.
To accomplish this object the present invention provides a connector for assembling sieve elements on a grid comprising a mounting element having a stem with opposing gripping elements extending therefrom to grip a grid element, a crossbar extending from the stem for supporting a sieve element, the crossbar having at least one aperture for receiving a fastener, and a rounded portion connecting the stem to the crossbar to provide damping; a fastener inserted in the aperture of the crossbar having a cylindrical body, an upper collar on one side of the cylindrical body, and a bevelled lower collar on the other side of the cylindrical body, a cylindrical axial bore through the cylindrical body, at least one first slot extending longitudinally in the cylindrical body, a membrane extending across the first slot; a securing pin inserted in the axial bore of the fastener; wherein the membrane is broken and the fastener is split as a result of insertion of the securing pin.
In one embodiment of the invention the membranes located longitudinally along of the fastener body begin below the upper collar. In a second embodiment the membranes extend longitudinally along the fastener body extending to the upper edge of the upper collar. Radially extending teeth may be provided on the upper collar to prevent fastener rotation during assembly and use.
Advantages of the present invention include that in detaching sieve elements, the sieve elements do not deform or break. In addition the present invention provides for mounting of the sieve elements from either above or below.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view in perspective illustrating a shaker, sieve elements, and the fastener of the present invention.
FIG. 2 is a partial perspective view of the fastener body.
FIG. 3 is a partial perspective view of a modified embodiment of the fastener body and a securing pin.
FIG. 4 is a cross-sectional view of the fastener of the present invention assembled and supporting a sieve element and connecting bar.
FIG. 5 is a cross-sectional view of a sieve element mounted fastener.
FIG. 6 is a perspective view of a mounting bar mounted to a gridiron element.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 is an exploded view illustrating the present invention. A shaker having sieve elements 1 mounted thereto is shown. Sieve elements 1 are mounted to the shaker by a fastener 2 having a securing pin 3 inserted therein. A mounting element 4 is also used in mounting sieve elements 1 to the shaker. Fastener 2 includes a cylindrical body 5, a lower collar 6, and an upper collar 7. Referenc
REFERENCES:
patent: 2402287 (1946-06-01), Kearns
patent: 3082657 (1963-03-01), Fischer
patent: 4405272 (1983-09-01), Wollar
Angelov Georgi N.
Binbashiev Ivan Y.
Ivanov Bogdan T.
Popsavova Mariela P.
Institut po Technicheska Kibernet Ika i Robotika
Kundrat Andrew V.
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