Патент USA US2405897код для вставки
Aug. 33,1946. s, MELONE ETAL wwsg? .. RIVET . Filed March 51, 1945 Fl u ' /Z .9 8 /0 7.1, 1 } , EH Patented Aug. 13, 1946 ‘ ' T'UNITED STATES PATENT. OFFICE _ RIVET Samuel Milone and Charles W. Rothfeld, Philadelphia, Pa. Application March 31, 1943, Serial No. 481,350 6 Claims. (CI. 85-37) 1 2 - This invention relates to new and useful imFigure 1 is a view in perspective of a rivetem 'provements in rivets, and more particularly to bodying the present invention; . rivets adapted for application from One side only Figure 2 is a view partially in section showing of the work tobe riveted together. the rivet inserted through aligned openings in a In the construction and assembly of structures pair of structural plates and in position to be set; of metal and other materials one generally emFigure 3 is a view similar to the disclosure‘in ployed method of attaching pieces of material is Figure 2 showing the rivet applied 01‘ Set; by riveting, and this is particularly true in the Figures 4 and 5 are diagrammatic Views Par case of aircraft and similar structures where tially in Section Showing the manner or method many of the parts are shaped and arranged so in by which the rivet maybe set; and that there is not su?icient clearance or space for Figures 6 and 7 are views showing the present the use or insertion of the usual bucking bars. In invention embodied in a novel bolt construction such instances, it is necessary either to employ a to provide for securing a nut thereon against dis type of rivet that may be applied from one side placement. only of the work, or to'employ a mode of assem- 15 bly other than riveting. It is known that rivets of the type which may ‘ Referring now more particularly to the draw ing, a rivet embodying the present invention com prises essentially integral and unitary head and be applied from only one side of the work are to Shank portions l and 2. respectively ' As shown, be found in the prior art. the Shank 2 is of a predetermined diameter less However; such rivets for the most part consist of a, plurality of sepaln V 20 than that Of the head I and includes a coaxially able parts and are generally objectionable in that the several parts must be assembled and also held in assembled relation while the rivet is inserted through the work to be riveted together. This requires time and care on the part of theuser 2'5 extending neck p01‘ tion 3 of reduced diameter and a shoulder ?ange portion 4 disposed in radially spaced ctfncentric relation with respect to Said neck Pottlon 3 The neck portion 3 of the Shank Projects Out and generally slows down production. Furthermore, such rivets when secured in place are gen- Wardly beyond the Spaced concentric shoulder ?ange 4 as Shown’ ttnd the base of the Saltt netk emny of the open or “eyelet” type and this is 3 and the base of said shoulder ?ange reside in neither adequate nor desirable for many classes 30 z‘hcommon Plane whlch .hes crqss'sectmnany of and kinds of Work. _ e shank 2 1n predetermined axially spaced rela ' The present invention, therefore, contemplates “9n “nth respect to the adJa‘ctent or undermce !a certain improvements in rivets of the type that the nvet head t‘ .In practtce’ and as shown m may be applied from one side only of the Work’ igure 2 of the drawing, the distance or space be tween the under face la. of the rivet head I and“ and the principal object of the invention is to provide a novel rivet of the type described which 35 the plane of the bases of the neck 3 and ?ange 4 preferably is equal to the thickness of the‘ two or comprises an integral and unitary structure. more pieces of material that are to be secured to Another object of the invention is _ to provide a _ _ _ gether by the rivet. Too, the axial length and unltary nvet of the type set forth Whlch ‘S of sub“ radial thickness of the shoulder ?ange 4 in a stantially solid construction and therefore pro- ' 40 given rivet may vary according to the size and vides a rivet characterized by its high resistance to shear stresses. nature of the pieces of material to be riveted together. Another object of the invention is to provide a As illustrative of the manner of applying the novel rivet of the character described which, when rivet of the present invention there is shown ?nally Set, fully closes the Opening in which the 45 in Figure 2, a pair of overlying metal plates A’ rivet is secured as distinguished from a rivet of and B Suitably drilled for attachment by a, rivet; the tubular 01“ eyelet type- \ A further object is to embody the novel features which is inserted through the plate holes as indi cated_ with the rivet positioned as shown in of the invention'in a bolt construction for secursaid Figure 2 it may then be ?nally .“se ” by ing a nut thereon against displacement?50 grasping the neck portion 3 thereof and exerting These and other objects of the invention and a, pull axially on the rivet in a, direction away the various features and details of the construcfrom the sheet B to seat and hold the rivet head tion and application thereof are hereinafter fully | ?rmly against the sheet A and, at the same set forth and shown in the accompanying draWing, in which: > a > ‘ ' time, the shoulder ?ange 4 is spun and thereby 55 rolled outwardly over and onto the adjacent su'r' 2,405,897 3 4 \ base of the neck l6 reside in a common plane which lies cross-sectionally of the shank in axial tion 3 of the rivet then may be broken away to ly spaced relation with respect to the adjacent or provide a riveted joint constructed and arranged under face of the head [4. as shown in Figure 3 of the drawing. The exterior surface of the shank l5 which One form of device for setting the rivet is $1 resides between the head 14 and the plane of the shown in Figures 4 and 5 of the drawing. This bases of the neck l5 and ?ange I1 is threaded device may comprise a pair of cooperable jaws as indicated at E8 to receive thereon a nut l9, 6 carried on the outer end of a shaft 1 which it being understood that the saidthreaded shank is mounted for axial movement within a ?xedly mounted tubular bushing 8. The interior sur 10 portion has an axial length su?icient' to extend face of the bushing 8 at the outer end thereof is v entirely through the pieces of material A’ and face of said sheet B. The projecting neck por inclined or beveled as indicated at 9 and corre-‘ sponding inclined surfaces are provided on the B’ to be secured together and, in addition, ‘to project beyond them a distance sufficient to re ceive a nut 19 thereon as shown in the drawing. outer lateral surfaces of the jaws 6 as shown, W hen the nut 19 has been threaded and tight Mounted exteriorly of the ?xed bushing 8 for ened on the shank 15 to the desired extent, the both rotary and longitudinal sliding movement shoulder ?ange I’! may then be spun or rolled with respect thereto is a sleeve NJ the outer end outwardly and over onto the adjacent nut sur of which is provided with an axial opening I l and face as shown in Figure '7, thereby preventing formed as indicated at, l2 to provide a’ tool for spinning or rolling over’the rivet shoulder ?ange 20 removal or loosening of the nut 19. The shoul der ?ange i‘! may be spun or rolled over in the 4. Normally, When‘ the device is not in use, manner and by a device such as that previously the shaft 1 and jaws 6 are. held in their outer described in connection with the rivet form of mostposition longitudinally with respect to the the invention. _ I a bushing 8, and with their end faces abutting the From the foregoing it will be seen that the pres inner end face of the sleeve ill, by means of a ent invention provides a novel rivet that may be spring 13. With the jaws 6 vheld in this posi applied from one side only of the work and which tion by said spring 13 they reside outwardly is of unitary solid construction providing high along the inclined surfaces 9 .of the bushing a resistance to shear stresses. The invention also distance’su?‘lcient to permit said jaws to open provides a bolt construction having a novel con to an extent to permit insertion therebetween of the neck 3 of the rivet. ' When the rivet neck 3 is inserted inwardly of the end opening llv of the sleeve 10 and between the jaws 6, as aforesaid, the shaft ‘I and said jaws: 6 are retracted or actuated relative to the ' ?xed bushing 8 in the direction of the arrow (Fig. 5) ’ against the action ‘of the spring 13, struction and arrangement for securing a nut thereon against removal, displacement and loos ening. - i- I ~ While particular embodiments of the invention ‘have been herein illustrated and described, it is not intended that the invention be limited to such disclosures but that changes and modi?cations may be made and embodied therein within .the thereby causing the surfaces 9 of the bushing scope of the‘claims. to cam the jaws 6 toward each other and clamp . theme}; 3 of the rivet therebetween, as shown. 40 ‘We claim: l. A preformed .unitary headed fastening ele The rivet is thus ?rmly held in place with its ment comprising» a. shank of predetermined di ‘head I against plate or sheet A, and whileithe ameterless thansaid head and including a co rivet neck is held in this manner by the jaws 6. axiallyextending neck portion of reducedv diame the sleeve i0 is driven rotationally, and, at the same time, advanced ‘relative to thebushing 8 ':~ ter and a radially spaced concentric straight cylindrical shoulder ?ange portion, the base of toward the sheet or plate B, thereby causing the tool end l2 of said sleeve to engage and spin or roll the rivet‘ shoulder ?ange 4 outwardly over and onto the- adjacent surface of the sheet or of said shank in axially spaced relation to said plate B as shown in Figure 5 of the drawing. . head. The sleeve 10 is then retracted and the pull on 2. A preformed unitary headed fastening ele ment comprising a shank of predetermined diam shaft ‘I released, whereupon the spring l3 actu ates the jaws forwardly or outwardly of the bushing causing them to release their grip upon the rivet neck 3 and the device then may be removed and the rivet neck 3 broken away to provide‘the riveted joint construction of Fig ure 3. ' ‘ i i ' The invention may be employed as well in con the ?ange portion and the base of the neck por tion being in a vcommon plane cross-sectionally , j ‘eter less than said head and including a coax ially extending neck portion of reduced diameter and a radially spaced concentric straight cylin drical shoulder ?ange portion, said neck portion extending axially outward beyond said shoulder ?ange portion and the base of the ?ange portion and the base of the neck portion being in a com junction with ‘bolts and the like where it is de mon plane cros’s-sectionally of said shank in ax siredto secure a nut or like element thereon ially spaced relation to said head. > against removal or displacement. The invention, therefore, may be employed to advantage to look and an‘integral shank portion of predetermined a nuttightly upona bolt or, in the caseof nuts which sometimes are loosely threaded on a'bolt, _a. to prevent further loosening and removal of the nut ‘as is sometimes accomplished at the present time by means of cotter pins, additional lock'nuts, and the like. - I I r -' Referring to Figure 6 of the drawing, a bolt 7 embodying the present invention may comprise a head l4 and integral shank IS, the latter; in" cluding ace-axially extending neck portion l6 and a radially spaced concentric shoulder ?ange H... As shown, the .base of the ?ange Hand the 3. A preformed unitary rivet comprising a head diameter less than said head, said shank includ ing a coaxially extending neck portion of reduced diameter and a straight cylindrical shoulder ?ange portion radially spaced concentrically of said neck‘ portion, the base of the neck portion and the base of the shoulder ?ange portion being in a common plane cross-sectionally of the shank in axially spaced relation to the rivet head. 4. A preformed unitary rivet comprising a head and an integral shank portion of predetermined diameter less than said head, said shank includ ing a coaxially extending neck portionof reduced 5 2,405,897 diameter and a straight cylindrical shoulder ?ange portion radially spaced concentrically of bolt head and the common plane of the bases of the shoulder ?ange and neck portions thereof. said neck portion, said neck portion extending 6. A preformed unitary bolt comprising a head axially outward beyond said shoulder ?ange por and an integral shank portion of predetermined tion and the base of the neck portion and the I) diameter less than said head, said shank includ base of the shoulder ?ange portion being in a ing a coaxially extending neck portion of reduced common plane cross-sectionally of the shank in diameter and a straight cylindrical shoulder axially spaced relation to the head. ?ange portion radially spaced concentrically of 5. A preformed unitary bolt comprising a head said neck portion, said neck portion extending and an integral shank portion of predetermined 10 axially outward beyond said shoulder ?ange por diameter less than said head, said shank includ tion and the base of the neck portion and the ing a coaxially extending neck portion of reduced base of the shoulder ?ange portion being in a diameter and a straight cylindrical shoulder common plane cross-sectionally of the shank in ?ange portion radially spaced concentrically of axially spaced relation to the bolt head, and said neck portion, the base of the neck portion threads on the exterior of said shank for at least and the base of the shoulder ?ange portion being a portion of the axial length thereof between in a common plane cross-sectionally of the shank the bolt head and the common plane of the bases in axially spaced relation to the bolt head, and of the shoulder ?ange and neck portions thereof. threads on the exterior of said shank for at least SAMUEL MILONE. a portion of the axial length thereof between the CHARLES W. ROTHFELD.