Патент USA US2105702код для вставки
jam. 18, 1938. 2,105,702 H. J. ‘SCHOLTZE FLEXIBLE SHAFT COUPLING Filed lvAug . 6 , 1934 ‘ , INVENTOR. HEKM?NJISC/I’OLTZE. BY ' - 6é g ATTbRNEY Patented Jan. 18, 1938’ I 2,105,702 ' UNITED‘ STATES PATENT osrics 2,105,702 7 FLEXIBLE snam' COUPLING Herman J. Scholtze, Berkeley. Calif. Application‘ August 6. 1934, Serial No. 738,594. 30laims. (01. 54-14) The invention relates to a means of coupling Arranged for positioning between the ?anges together a pair of shafts so as to permit coopera are a pair of like coupling members 8 and 8 here shown in the form of rings or discs and designed tion notwithstanding misalignment or variation in positional relationship of the shafts. An object of the invention is to provide a cou- _ pling means of the character described which is effective not only for compensating for various to be attached'to the ?anges 2 and 3 respectively by means of screws H. The central opening I: 5 of the discs is preferably'of greater diameter than the openings It of the ?anges so that should of the shafts, but will ' the shaft ends extend beyond the inner faces of effectively withstand axial and torsional strains 10 in all directions. the ?anges they will not interfere with the discs. ' ' Means are provided on the adjacent faces of 10 Another object of the invention is to provide a the discs for e?’ecting with the assistance of a coupling of the character described which is effective for absorbing relatively'heavy strains as ‘ layer or lining of ?exible material interposed an interlocking of the discs, both aforesaid, yet at the same time will possess and therebetween, as against axial and rotative displacement with '~ types of misalignment maintain over a long period of use a maximum ?exibility and cushioning "quality. A further object of the invention is to provide a coupling of the character described which is ex tremely simple in construction, may be easily .20 installed or disconnected, will afford u'se almost inde?nitely without requiring a replacement of parts, and insures an evendistribution over the entire coupling of the various strains to which the coupling may be subjected. > - The invention possesses other objects and fea tures of advantage, some of which, with the fore going, will be set forth in the following descrip respect to one'another, yet affording against a 15 gradually increasing resilient resistance a cer tain amount of said displacement, either axial, rotative or both, as the nature of the operation of the shafts necessitate. As here shown said means comprises coacting male and female ele- 20 ments provided on saidlfaces and arranged to engage one with the other, the male elements be ing in the form of projections "5 while‘ the female elements are in the form of recesses l1. Each . disc has a plurality of the projections and re- 25 cesses, and moreover the projections and recesses are designed to extend radially of the discs with tion of the preferred form of the invention which _ the width of the elementsincreasing as the diam is illustrated in the drawing accompanying and forming part of the specification, It is to be eter of the discs grow larger. Preferably the ele- ' ments are so designed that adjacent projections 31) understood, however, that variations in the show the intervening recess thereby permitting . ing made by the said drawing and description de?ne the inclusion of a maximum number of elements may be adopted within the scope of the vinven-_ of given size for the discs. , tion as set forth in the claims. As will be clear from Figure 3, each projection, 35 Referring to said drawing: in respect to its area circumferentially of the disc, 35 Figure 1 is a longitudinal sectional view of the is formed of dove-tail shape, that is ‘of increasing coupling. v width from the base to‘ the outer extremityy'and Figure 2 is a transverse sectional view of the conversely each recess is formed of correspond coupling taken on the line 2-2 of Figure 1. ingly' decreasing width from ‘the closed to the 40 Figure 3 is a fragmentary sectional view of the open side. Since the projections are in the pres- 4Q coupling talsen on the curved line 3—3 of Fig ent embodiment formed as fixed parts of the discs, in order that the‘v projections of the one disc In the embodiment of the invention‘ illustrated may enter the recesses of the other disc, the in the drawing, the coupling is incorporated with widest portion of each projection is somewhat ure 2. ’ . = I - a set of coupling ?anges 2 and 3 arranged to re ceive and be secured to the ends of the shafts to be coupled together. The mode of attachment oi vless than the narrowest portion of the recess ar-_ 45 the coupling ?anges with the shafts will of course vary in accordance with the function and mode of operation of the shafts, but as here shown the a liner or layer I 8 of a ?exible material preferably of a nonmetallic ?brous nature. and as will be most clear from Figures 2 and 3, the liner is of 50 ranged to be engaged thereby. Arranged for positioning between the discs is attachment is arranged to be effected through .7 the same length as the projections and dad. means including bolts 4 and keyways 5 provided on the ?anges and by which the latter may be signed to extend completely around the coupling members so as to form a continuous spacer be ?xed to the shafts against axial and rotative,» tween the adjacent surfaces of the projections displacement. and recesses while the projections and recesses l .2 are operatively interengaged. 2,105,702 Preferably the liner is of ‘such thickness that when the pro-‘ jectionsr and recesses are operatively engaged as aforesaid, an even spacing will be provided be tween the di?ferent adjacent surfaces.’ Insertion of the liner into position between the discs, is best e?ected after the discs have been brought to gether with the projections inserted in the re cesses, the liner being then slipped edgewise '10 along the periphery of the discs into- the space between the opposing surfaces of the projections and recesses. If desired the layer It may be in the form of a ?ller of rubber composition or the like, placed into the space aforesaid and vul 15 canized therein. It will now be clear that once the members have been assembled with the liner contained between the opposing surfaces of the projections and re? 1. A coupling of the character described com prising a pair of annular members having on op posed sides thereof dovetall extended and re cessed portions nested within the other, and a continuous liner of ?exible material interposed betweenlsaid portions said dovetailed extended portions and recessed portions having compara tively ?at tops and bottoms respectively, the dis tance across the tops of the dovetailed portions .de?ning the maximum width 0 the dovetailed 10 portions and being substantially he same as the distance between the tops of adjacent dovetailed portions which comprises the minimum width 0 the dovetailed receptacles - ' 2. A coupling of the character described com 15 prising a pair of axially aligned members having \ on opposed adjacent sides thereof extended and recessed portions, the extended portion having cesses,. axial separation of the members will be sides inclined outwardly axially of the connected 20 20 resiliently resisted-as effectively as willv be the ' member and the recessed portion having sides axial compression thereof. Likewise, the same inclined inwardly axially of the connected mem ber and arranged for a dovetail connection with resistance will be set up against rotative displace ment of the one member relative to the other in said first sides, and a'continuous‘liner of ?exible‘ one direction as well as in the other, the resistance rnaterial interposed between said sides and look was being smooth and'even at all times, but increas ,ing the members against 'axial separation, the ingly rigid‘ as the forces applied to the coupling maximum dimensions of width of said extended become greater. It should also be noted that portions being substantially the same as the min since the portions of the members coacting for imum dimension of width of the. recessed portions. 3. A coupling of the character-described com assuming the stresses, are located completely around the discs, a most e?ective distribution of prising a pair of annular axially aligned members L the strains on the coupling will result. ' A further feature of importance of the inven tion is the readiness with which the coupling may beins'talled or taken down. Thus to apply the 5 same, it is merely necessary to insert the assem bled discs with the liner, between the-flanges and then by means of the screws l2 secure the parts together. vIn this connection it may be noted that ordinarily neither of the shafts will 40 protrude from the ?anges to thereby interfere with the members. To remove the coupling mem bers it is merely necessary to release the screws having on adjacent sides thdreof alternate ex tended and recessed portions, the extended por tions of each member being inserted in but spaced from the sides of the recessed portions . of the other member, and a ?ller of ?exible material in the space between the interengaged portions, said extended portions being enlarged at points spaced from their inner ends and saidrecess portions being substantially correspondingly reduced at points spaced from their inner ends the greatest 40 ‘width-of each enlargement of each extended por- a“ tion being substantially the same as the smallest width of said recessed portions, whereby the mem l2 and slip the members ‘transversely from be bers will be locked together againstseparation tween the ?anges. Or, should it be merely de ' when the filler is operatively disposed in the space sirable to disconnect the coupling without re-I 45 moving same, it is only necessary to remove the screws from but one of the members. " I claim: between the portions. _ . HERMAN J._ scHoL'rzn. 45, ..