Патент USA US2410968код для вставки
Nov. 12, 1946. R, E_ EGGERTSHEET METAL NUT Filed Jan. 15, 1945 2,410,968 2,410,968 Patented Nov. 12, 1946 UNITED STATE s PATENT OFFICE 2,410,968 SHEET’ METAL NUT Ronald Edgar Eggert, Burbank, Calif., assignor to Adel Precision Products Corp., a corporationof California vApplication January 15, 1945, Serial‘No. 572,898 3 Claims. (Cl. 85—36) 1 . This invention relates to stamped sheet metal vnuts of ‘the type forming the subject matter of myrrpending application for patent, Serial No. 553,640, ?led September 11, 1944, which has be come Patent No. 2,379,892, patented July 10, 1945. It has been the practice as exempli?ed in my application above identi?ed to strike out from a sheet metal body portion a pair of laterally juxtaposed generally rectangular bridge portions 2' with S‘LlCh‘QthB!‘ objects and advantages as may subsequently appear, the ‘invention resides in the parts and in the combination, construction and arrangement of parts hereinafter described and claimed, and illustrated byway of- example in the accompanying drawing, in which: vFig. 1' is a perspective view of a nut embodying my invention; ‘ j - Fig. 2 is a'top plan view of the nut; which’ have ‘arcuate or similar opposed side edge 10 I )Fig. 3 is an end elevation of the nut as stood on a longitudinal edge thereof; ‘ I , portions helically pitched for screw threaded en. Fig. 4 is a side elevationof the nut as applied gagement with a screw, bolt or the like. These showing it ‘as it would appear before being bridge portions are elongated and have straight side edges except for the opposed edge portions Fig.» 5 is-a side elevation of the nut,-similar to which engage the screw or bolt, that is, are of 15 tightened; vuniform width except for said opposed edge por tions which ‘weaken the bridge portions at the mid-section thereof. . ' V ’ Fig. 4, showing the nut as it ‘would, appear when tightened, the bridge vportions being bowed in wardly and having *tensionedtand locking en gagement with the screw threaded fastening.v It is an object of the present invention to pro Referring more ‘ speci?cally‘to the drawing vide a stamped sheet metal nut of the character 20 wherein one embodiment of this invention is next above described which eliminates the ob shown in detail, ii designates an elongated re jection of weakening the mid-section of the bridge silientsheet :metal body '_ portion having some portions and provides adequate strength through what narrowed and rounded ends ‘I provided out the bridge portions in a novel, simple and particularly e?icacious manner. ~ 25 with openings 8 so that the nut may be riveted as at 9 as shown in Figs. 4 and 5‘ or otherwise Another object is to provide a nut of the char secured to a member l0, preliminary to securing acter described in which the mid-section of the another member I l thereto by means of the nut bridge portions have a substantial width and and a bolt or like fastening l2. This securing adequate strength without requiring an increase in the width of the anchored ends of the bridge 30 of the nut to the member Ill makes it unnecessary for the operator to hold or manipulate the nut portions beyond that provided as heretofore in screwing ‘the bolt or screw [2 into the nut. where the bridge portions are of rectangular However, it is obvious that the nut may be turned formation and have straight side edges, this be on the bolt or screw or held by the operator if it ing accomplished by forming the bridge portions so that their outer longitudinal edges are curved 35 is desired to apply it in this manner rather than fasten it as shown in Figs. 4 and 5. outwardly between the ends of the bridge por In carrying out this invention the body 6 may tions. With this formation it is possible to form be die-stamped to strike out from the plane there the bridge portions with an adequate given of and at its mid-portion a pair of elongated re width at the mid-section thereof while their anchored end portions are of lesser width than 40 silient bridge portions [3 and I4, lying side by side in oppositely inclined relation to one an would be required if the outer longitudinal edges other and in different offset planes so that com of said bridge portions were straight. Moreover, plementary arcuate edge portions I5 formed in’ this formation makes it possible to make the mid the inner longitudinal edges thereof form an section of the bridge portions of substantially the same width as the anchored ends of the 45 opening for reception of a bolt or screw. These bridge portion thus affording adequate and. uni form strength throughout such portions and as edge portions due to the relative inclination and offset relation of the bridge portions are helically suring a reliable performance of the nut as a pitched so as to have screw threaded engage ment as shown in Figs. 4 and 5 with a bolt‘ 0 self-locking resilient fastening which will effec ' tively resist loosening after application to a bolt, 50 screw such as the bolt l2. screw or the like, and which may be removed and repeatedly used since it is less likely to be come distorted or broken at any point along As here provided the ends of the bridge por tions I3 and I4 are integral with the body por tion and all of bridge portion l3 except its ends is outwardly offset from the body and the other the bridge portions. With the foregoing objects in view, together 55 bridge portion l4 whereas the latter is for the 2,410,968 .I ' a 3 most part offset from the body portion a lesser extent than portion l3. In order that the mid portions of the bridge portions, where the “threading” edges I 5 are formed by notching or cutting out portions of the bridges, have an appreciable width and ade quate strength, the bridge portions are stamped 4 I claim: 1. In a nut, a plate-like sheet metal body por tion, and a pair of elongated laterally juxtaposed bridge portions struck out from the mid-portion so that their outer longitudinal edges l6 are out of said body portion so as to lie in offset relation to one another and the body portion and having complementary edge portions at opposed inner edges thereof constructed and arranged to de?ne wardly curved from one end of the bridge por tions to the other. As here shown the width of threaded member turned in said opening, said each bridge portion where the edges l5 are lo cated is approximately that of its anchored end portions. In other words, for a given adequate mid-width of the bridge portions the anchored ends need be no wider than such given width and could be of lesser width, whereas if the an opening and to threadedly engage a screw bridge portions having their outer longitudinal edges curved outwardly from end to end thereof to provide a substantial width of said bridge por tions at points adjacent said complementary edge portions. 2. In a nut, a plate-like sheet metal body por bridge portions were formed with straight outer edges in order to give them this given width, tion, and a pair of elongated laterally juxtaposed bridge portions struck out from the mid-portion the ends would have to be as wide and said mid of said body portion so as to lie in offset relation portions and this would weaken the nut body 20 to one another and the body portion and having portion, also make the bridges too wide to have complementary edge portions at opposed inner the desired yieldability and resilient action re edges thereof constructed and arranged to de?ne quired to make the nut effectively self-locking. an opening and to threadedly engage a screw It is now apparent that the curved outer edges threaded member turned in said opening, said of the two bridge portions will provide the desired 25 bridge portions being arcuate and of substantial strength in the mid-section of the bridge por ly the same width between said edge portions tions which sections are otherwise weakened ob and their outer longitudinal edges as at the ends jectionably by the arcuate threading edges l5 thereof. being out into the middle thereof. Moreover, 3. In a nut, a plate-like sheet metal body por this formation gives a uniform strength through 30 tion, and a pair of elongated laterally juxtaposed out the bridge portions and a certain desired bridge portions struck out from the mid-portion rigidity without depriving them of the necessary of said body portion so as to lie in offset relation yielding and resilient action which, when the nut to one another and the body portion and having is tightened as shown in Fig. 5, causes the bridge complementary edge portions at opposed inner portions to be bowed inwardly between their ends ~ edges thereof constructed and arranged to de?ne and to have a tensioned locking engagement with an opening and to threadedly engage a screw the threads of the screw or bolt. threaded member turned in said opening, said While I have shown and described a speci?c bridge portions having greater width between embodiment of my invention I do not limit myself their ends and said complementary edge portions to the exact details of construction set forth, and 40 than at the points where the ends thereof are the invention embraces such changes, modi?ca tions and equivalents of the parts and their for mation and arrangement as come within the purview of the appended claims. joined to said body portion. RONALD EDGAR EGGERT.