US 3284116 A
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Description (OCR text may contain errors)
Nov. 8, 1966 J. A. GEORGE 3,
PANEL HAVING EMBEDDED FASTENER SECURING MEANS Filed Sept. 30, 1963 3 INVENTOR.
JAMES A. GEORGE ATTORNEY United States Patent Office 3,284,116 Patented Nov. 8, 1966 3,284,116 PANEL HAV IN G EMBEDDED FASTENER SECURING MEANS James A. George, 145 Woodland Ave, Campbell, Ohio Filed Sept. 30, 1963, Ser. N0. 312,468 2 Claims. (Cl. 287-2032) This invention relates to a fastening device applicable to sheets of plywood and similar panels and more particularly to a fastener which permits joining such sheets of plywood and the like to metal objects such as frames or supports.
The principal object of this invention is the provision of a simple and economical fastener for plywood panels and the like.
A further object of the invention is the provision of a fastener for plywood panels and the like which engages the panel transversely thereof throughout the width of the same.
A still further object of the invention is the provision of a fastener for a plywood panel or the like which is completely hidden with respect to the upper or finish surface of the plywood panel or the like.
A still further object of the invention is the provision of a fastener for a plywood panel or the like which provides a continuous metal member embedded in the plywood panel or the like in which a metal screw may be engaged.
The fastener disclosed herein is particularly suitable for furniture and cabinet making wherein metal pieces are frequently supplied with plywood or flakeboa-rd tops and the same covered with desirable surfacing material, such as molded plastic sheets, etc. Such tops are commonly used on desks, tables, cabinets and other items of furniture which frequently use a metal frame and a serious problem has heretofore existed in the inability of the fasteners heretofore known in the art to adequately secure the plywood or flakeboard panel to the metal frame. For example, a so-called metal ofiice desk comprises a pair of pedestals, each of which contains drawers and an interconnecting metal section, all of which are attached to a top which very frequently comprises a sheet of plywood or flakeboard with a section of vinyl plastic material and having its edges finished with an aluminum molding which is usually provided with a plastic insert. In the past, such tops were simply afiixed to the metal pedestals of the desk with wood screws and inasmuch as the plywood is relatively thin, usually no more than /2 in thickness, the degree of attachment provided by the wood screws was generally insuflicient with the resultant loosening of the desk top relative to the pedestals. The same difliculty occurs when plywood or flakeboard tops are used on sink counters and cabinets adjacent thereto and attached to the supporting cabinet-s by wood screws.
The invention disclosed herein enables such desk tops, sink tops, counter tops and the like to be securely fastened to the supporting structure whether it is metal or wood.
With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being the intention to cover all changes and modifications of the example of the invention herein chosen for purposes of the disclosure, which do not constitute departures from the spirit and scope of the invention.
The invention is illustrated in the accompanying drawing, wherein:
FIGURE 1 is a perspective view of a section of plywood panel showing a section of angle iron fastened to the under side thereof.
FIGURE 2 is an enlarged cross section on line 22 of FIGURE 1.
FIGURE 3 is a view similar to FIGURE 2 showing a modified form of the fastener.
By referring to the drawings and FIGURE 1 in particular, it will be seen that a section of plywood is indicated by the numeral 10 and has an end 11 and a side edge 12 and a bottom 13, the section of plywood 10 may comprise a counter top, desk top or cabinet top or the like or it may comprise a panel which may be positioned horizontally or vertically in a building-construction. In the example shown, it is positioned horizontally and the perspective view illustrates a portion of the bottom 13 thereof to which a section of angle iron 14 is attached. The angle iron 14 includes a horizontal flange 15' which is apertured at spaced intervals therealong and through which metal screws 16, 16 are positioned. The vertical flange of the angle iron 14 may be secured to or be a part of a supporting cabinet or the like. The section of plywood lll has been provided with a transversely extending opening 17 which opening 17 is spaced with respect to the upper surface of the plywood panel 10 and also with respect to the bottom surface 13 and extends inwardly from the side edge 12 completely through the section of plywood 10 to the other side edge thereof, or, alternately, a sufiicient distance.
A tubular metal member 18, the outer diameter of which is slightly smaller than the inner diameter of the opening 17 in the plywood panel 10, is inserted in the opening 17 so as to extend completely through the plywood from one edge to the other. The opening 17 and the tubular metal member 18 are in vertical alignment with the metal screws 16 heretofore referred to so that when they are turned inwardly they will first engage the portion of the plywood panel 10 which defines the opening 17 and then they will engage and pierce and become secured to the tubular metal member 18.
By referring now to FIGURE 2 of the drawings, an enlarged cross section on line 22 of FIGURE 1 may be seen, and it will be observed that the metal screw 16 has pierced and penetrated the tubular metal member 18 so that the threads of the metal screw tightly engage the opening which was punched in the tubular metal member 18 when the screw was inserted.
It will thus be seen that no matter how many metal screws are driven they will engage the tubular metal member and be securely fastened thereto and thus securely attach the angle iron 14 or whatever other device is to be secured to the plywood.
By referring now to FIGURE 3 of the drawings, a modification of the invention may be seen and in which figure a section of plywood 19 is. shown in which a transverse opening 20 has been formed and in which a modified tubular metal fastener 21 has been positioned. The modification comprises splitting the metal top longitudinally and turning the ends of the split sections upon themselves as indicated by the numerals 22 and 23. When the tubular fastener 21 is installed in the opening 20 the slit is disposed at the bottom of the opening 20 so that the metal screws 24 upon being inserted therein will engage double thicknesses of the metal fastener 21 as illustrated and thereby be more securely held. The metal screw 24 may obviously be used to attach any object, such as the angle iron 25 illustrated.
It will thus be seen that simple, inexpensive and highly efficient metal fastening device has been disclosed which when inserted in an opening drilled edge-wise in a plywood panel or the like acts to receive a metal screw and thereby clampingly secure the plywood panel or the like to whatever device is desired.
3 i It will occur to those skilled in the art that the fastener disclosed herein as being cross sectionally circular and comprising a tubular member may alternately comprise a metal member of any desired cross sectional configuration, and having thus described by invention, what I claim is:
1. In combination with a plywood panel a device for attaching said plywood panel or the like to a structure, said plywood panel having an opening extending therethrough parallel with a surface of said panel, said device comprising a section of longitudinally split tubular material with inturned longitudinal edges positioned in said opening in said plywood panel and arranged to receive screws positioned in the surface of said plywood panel so as to engage said opening and penetrate said tubular fas- References Cited by the Examiner UNITED STATES PATENTS 947,602 1/1910 Stahl et al 858.8 1,734,340 11/1929 Overton 151-41.7 2,191,613 2/1940 Ericsson 15141.7
FRANK L. ABBOTT, Primary Examiner.
R. A. STENZEL, Assistant Examiner.