US2948316A - Floating anchor nut assembly with flange construction to minimize heat transfer - Google Patents

Description

Aug. 9, 1960 INVENTORS. DAN/EL K SING an BY ALBERT BANA s ATTORNEYS.

' FLOAT NG ANCHDR-NUT EMB W H 'ELANGE' CONSTRUCTION TO" a 7 HEAT Dn iel S na Qre, and Alb s, o a a',

.ya s no I e Air a t pq fi m hea lield,.N.Y.

Filed Jant 214; 19 57, Sen-No. 636,086-

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l part.

' Still another object is to provide the foregoing in a felativel simple, inexpensive and'highly dependable and long lasting construction. i A ng' anchor nut device constructed "in acco'rd 'fthe instant invention is characterized by the pro;

1'1 of a; base member'having opposite .end .tab portio'ns adapted for attachment to a support and a raised intermediate portion mounting an anchor nut movable relative .thereto lengthwise of thedevice the nut being held against rotation and adapted to receive an anchoring 2,918,316 Patented Aug. 9, 196.9

ice.

chor nut devices l to suppo'rts 2, and this is accomplished by the instant invention without sacrificing strength, as follows:

In the presently preferred embodiment illustrated in the accompanying drawing the floating anchor nut device comprises a base member formed of suitable material to provide a pair of end tab portions 6 and an intermediate raised spacer portion comprising side wall portions7 and a top wall portion 8; The base member is transversely substantially flat throughout with end tab portions '6 and the major part of side wall portions 7 being mechanically reinforced by marginal flanges 9 and with top wallportion 8 being mechanically reinforced by marginali flanges 10;

The opposed end tab portions 6 are adapted to be: secured .to support 2, as by rivets 11 or other fasteners. passing therethrough and through the support, and the raised medial portion comprising side wall portions 7 and top wall portion 8 carries a floating anchor nut 12 held against rotation therein while'being permitted lengthwise movement relative" thereto. Thus, nut member 12 comprises an elongated body internally threaded as indicated at 13 and having a neck portion 14' fitted within a slot 15 in top wall portion 8 extending lengthwise thereof. The width of slot 15 is slightly greater than that of neck 14, whereby anchor nut 12 is permitted substantially only lengthwise movement relative to its base member.

bolt, and marginal reinforcements along the end tab and intermediate portions, the marginal reinforcements-being interruptedat points .therealongto' minimize heat transfer toz the end tabportions. i

fI he -foregoing and .other objects, advantages, and chara'eterizing featuresofflatfloating anchorflnut device con- 1 stir-acted in'accord with the instant invention willbeeome elgarly; apparent fromthe .ensuing detailed description of a presently preferred embodiment thereof, taken together with the accompanying drawing illustrating .such embodimentand forming a part hereof wherein like referease numerals-denote likepartsthroughout thevarious views and wherein:

Fig. 1 is a side elevational view of a floating anchor nut device of this invention;

Fig. 2 is a transverse sectional view thereof taken about on line II--II of Fig. 1;,

Fig. 3 is a bottom plan view thereof;

Fig. 4 is a longitudinal sectional view thereof, illustrating the same in use; and

Fig. 5 is a side elevational view, on a reduced scale, of an installation using floating anchor nut devices of the invention.

Referring now to the embodiment illustrated in the accompanying drawing, the floating anchor nut device of the instant invention, generally designated 1 is, by virtue of its heat transfer' characteristics, well adapted for use in anchoring insulating sheathing and the like in heat shielding relation to a primary member, although obviously its usefulness is not limited thereto.

Thus, as illustrated in Figs. 4 and 5, the floating anchor nut device of this invention is adapted to be connected to an appropriate support 2, which can comprise a primary structure to be heat shielded, and is adapted to anchor appropriate sheathing units 3 in place with relation thereto. For example, units 3 can be held against spacers 4 of heat insulating material as by retainer plates Anchornut 12 terminates at its upper end in an annular flange 16 adapted to slide on the top surface of wall portion 8, and immediately below neck portion 14 anchor nut 12 is provided with a flange 17 adapted to slide over the bottom surface of top wall portion Sand with flange 16, to lockanchor nut 12 to top wall portion 8. In this Way, anchor nut 12 is locked to the top wall portion 8, while being permitted a floating action enabling lengthwise movement thereof'relative to the base of the anchor-device, inthe direction indicated by arrcnv ayFig. 4, toenableshifting of retainer plate 5 with expansion and contraction of sheathing unit 3, as indi* cate'd by arrow b.v

Anchor nut 12 is adapted to receive an anchoring bolt 18 threadedly engaged therein, and it is a feature of the invention that anchor nut 12 is held against rotation because its flange 17 is of flat sided form received between the marginal flanges 10 of top wall portion 8 and held thereby against rotation. Thus, when assembling sheathing units 3 in place they are positioned on the insulating spacers 4 and retainer plates '5 therefor then are secured toanchor devices 1 by simply threading bolts 18 into the respective anchor nuts 12, which latter can be inaccessible because they are automatically held against rotation by the marginal flanges 10' interlocking with flange 17. In this Way, both assembly and disassembly are facilitated.

To provide a better gripping action, the lower end of anchor nut 12 can be slotted, as indicated at 19, thereby enabling a clinching action due to the resilience of the material used in fabricating the anchor nut 12, and it will be noted that the same can be of slightly bulbous form for greater strength.

In this way, there is provided an anchor nut device facilitating assembly and disassembly of sheathing units and the like having a floating action enabling shifting between the broken and full line positions illustrated in Fig. 4, and it is another feature of the inventio'n'that this is provided in a device which is mechanically strong and through which the transfer of heat is minimized.

This is accomplished by interrupting the marginal reinforcing flange, comprising flanges 9 and 10, to provide a discontinuity which experiments have shown greatly reduces heat transfer through the anchor device. Mechanical strength is maintained because continuous marginal flanges 9 are provided throughout end tab portions 6 and adjacent side wall portions 7, reinforcing the same at the juncture therebetween, and by providing the discontinuity adjacent the junctures between side wall portions 7 and top wall portion 8 heat transfer through the anchor device from units 3 to support 2 is greatly reduced without interfering with this mechanical reinforce ment. The marginal flanges it? on top wall portion 8 eflectively rein-force this part of the anchor device base, and together with the marginal reinforcements 9 provides an anchor device of more than adequate strength for the intended purpose. These interruptions or discontinuities in the marginal reinforcing flange 9, 10 are more effective in reducing heat transfer than would at first appear, in view of their relative size. Also, heat transfer to the support member 2 is further reduced by virtue of the fact that the anchor device has only a line contact therewith along the marginal flanges 9, as distinguished from the contact area which would be provided if the flat surfaces of end tab portions 6 were not spaced from the member 2.

Accordingly, it is seen that this invention fully accomplishes its intended objects, and while only a single, presently preferred embodiment has been disclosed herein it will be appreciated that the invention is not intended to be limited thereto.

Having fully disclosed and completely described our invention, together with its mode of operation, what we claim as new is:

A floating anchor nut device comprising a base member including a pair of tab portions formed at opposite ends thereof, said tab portions being integral with an intermediate raised spacer portion comprising side wall portions extending substantially normally to said tab portions and a top Wall portion extending between said side wall portions substantially normally to said side wall portions, means for attaching said tab portions to a support, said top wall portion having an elongated slot formed therethrough and extending longitudinally of said base member, and a floating anchor nut supported by said top Wall portion, said ancho'r nut com prising an elongated body having an internally threaded opening formed longitudinally therethrough, said anchor nut including a neck portion fittedwithinsaid slot and being of slightly less lateral dimension than said slot to permit lengthwise movement of the anchor nut relative to the base member, said anchor nut including a first laterally extending annular flange adjacent the upper end thereof, said first annular flange having a lateral dimension greater than that of said slot whereby said first annular flange is slidably supported on the upper surface of said top wall portion, said anchor nut including a second flange spaced from said first flange by a distance substantially equal to the thickness of said top wall portion, said top wall portion adjacent said slot being slidably received in the space between said flanges with the upper surface of said second flange being in slidable engagement with the bottom surface of the top wall portion thereby locking the anchor nut to the top wall portion, said second flange including flat edge portions, said top wall portion including depending integral flanges formed along the opposite lateral edges thereof, the flat edgeportions of said second flange being dispo'sed closely adjacent the inner surfaces of 'the depending flanges formed on the top wall portion to thereby prevent rotation of said anchor nut with respect to said base member, each of said end tab portions including depending integral flanges formed along the marginal edges thereof and adapted to engage a support member for spacing the base member from a support member, said last-mentioned flanges extending continuously along said end tab portions and around the juncture between said end tab portions and said side wall portions and extending upwardly along a partial portion of said side wall portions, the flanges on said top Wall portions and said last-mentioned flanges being spaced a substantial distance. from one another adjacent the junctures between said side wall portions and said top wall portions to provide maximum mechanical strength and to minimize the transfer of heat from the anchor nut portion to an associated support member.

References Cited in the file of this'patent UNITED STATES PATENTS

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