Патент USA US2406862код для вставки
Sept. 3, 1946. H. w. s'rER'rzBAcH - >SIDE FRAME RoR RAILWAY CAR TRUCKS' Filed Nov. 29, 194s ' 2,406,862 ì z ‘sheets-sheet 1 gaf' " l Sept. 3, 1946. H. w.> s'rER'rzBAcH 2,406,862 SIDE FRAME FCR RAILWAY CAR TRUCKS Filed Nov. 29, 1945 2 sheets-shea 2 O / // / L//////// /// / 4 ? __(6 *Illlllllll/ \ \ \\ l "" _ Patented Sept. 3, 1946 2,406,862 UNITED STATES PATENT oFElcE Harry W. Stertzbach, Columbus, Ohio, assigner to The Buckeye Steel Castings Company, Colum bus, Ohio Application November 29, 1943,.Seria1 Nu. 512,191 6 Claims. (Cl. 105_20.6) l This invention relates to railway car trucks and more particularly to cast metal side frames for such trucks. ' » An object of the invention is to provide a novel construction whereby the stresses will be more evenly distributed than in the side frames 2. l `sion member where it joins the journal box.Í At this point', it will be noted in Fig. "I, that the side wall I4 of the inner lug of the journal `box is spaced from the inner wall I8 of the box. The spring seat member, in accordance with my invention, is formed in hollow box section, heretofore known, and deformations of the jour as shown in Fig. 3, with the top plate I5 wider nal box or breakage of the members of the frame than the box section portion, and provided with will be eliminated. marginal upstanding inner and outer ñanges I9 With the foregoing object outlined and with l I) and 2l!Y for retaining the springs, not shown. other objects in View, which Iwill appear as the An alternative means for joining the bottoms description proceeds, the invention consists in of thediagonal tension members and the spring the novel features hereinafter described in de seat member is illustrated in Fig. 8, in which the tail, illustrated in the accompanying drawings, bottom 2I of each tension member forms an ogee and more particularly pointed out in the appended curve, being shaped convex downwardly under claims. ‘ each of the bolster columns 22 and changing to In the drawings: Fig. l is a side elevation of one-half of a side frame, including‘my improvements, it being un-derstood that the other half is identicalV in con struction with the half illustrated. Fig. 2 is a bottom plan View of the same. Fig. 3 is a fragmentary transverse vertical sec tional view taken ongthe line 3_3, of Fig. 2. Figs. 4 and 5 are sectional views, respectively, concave downwardly in a direction toward the journal box or the end of the frame. Such con structions strengthen the connection between the diagonal tension members and the spring seat member. . The columns 22 have parti~cylindrical surfaces 23, interrupted by medial vertical guide vflanges 24, adapted to cooperate with correspondingly , shaped surfaces on the bolster, not shown. taken on the lines 4_4, and 5_5, of Fig. 1. The upper portion of the bolster opening 25 is Fig. 6 is a top plan View of the journal box widened for a distance A below the top 26 of portion of the side frame. the frame to permit the passage of bolster lugs, Fig. 7 is a fragmentary vertical sectional view not shown. on the line 1, 1, of Fig. 6. 30 From the foregoing, it is believed that the de Fig. 8 is a fragmentary side elevation of a mod ification. In accordance with the present invention, the diagonal compression member 9 and the diagonal tails of my improved side frame and the con structional advantages thereof will be readily un derstood by those skilled in the art, and it will be apparent that changes may be made in the tension member IIJ are both of inverted channel side frames illustrated without departing from form. The inclined top plate or web II of the the spirit of the invention, as expressed in the tension member gradually increases in thickness following claims: toward and merges with the top plate I2 (Fig. '7) What is claimed and desired to be secured by of the integral journal box I3, where the top Letters Patent ist plate of the boX joins the side wall It! of the 40 1_ A railway car truck side frame comprising inner lug of the box and forms a continuous diagonal compression and tension members con connection between this point and the top plate I5 verging toward an end of the side frame, a jour (Fig. 1) of the spring seat member I6. For nal box integral with the outer ends of said strengthening purposes, it is advantageous to members and having a substantially flat hori have the web of the diagonal tension member 45 Zontal top, said journal box having inner and join the top of the journal box at the point where outer internal lugs provided with side, walls the wall of the inner brass lug also joins the top spaced kfrom the side walls of the journal box, the of the box. tension member having an inclined top web As the side frame is of cast metal, my con which terminates at and merges with the top of struction contemplates the use of symmetrical 50 the journal‘box at the place where the upper cores (not shown) inside of the box during cast end of the wall of the inner lug merges with the ing, the beveled corners Il (Figs. 6 and '7) being top of the box, said web gradually increasing in used at both the inner and outer corners of the thickness toward the top of the journal box, the box, with the width of the beveled cores being top of the journal box having internal beveled equal to the outside width of the diagonal ten 55 surfaces arranged at opposite sides of the lugs 2,406,862 3 4 and spaced from the front-l and rear ends of the 5. A railway car truck side frame comprising journal box, the beveled surfaces terminating substantially at the inner surfaces of the lugs, and the beveled surfaces adjacent the inner lug integral compression, tension, and journal box members, said compression and tension members converging toward the journal box, and the com being in substantially the same plane as the Ul pression member having a top web, said journal box member being provided with inner and outer bottom surface of the web of said tension member. substantially vertical lugs which are substan 2. A railway car truck side frame lcomprising tially in alignment with the compression and compression and tension members, each of in tension members longitudinally of the frame, verted channel shape, said members converging toward an end of the frame, a journal box ar 10 said lugs having side walls spaced inwardly from ranged at said end of the frame and integral ' the side walls of the journal box, the web of the tension member merging with the top of the with said members, said box having a top and journal box Where the side wall of the inner lug the tension member having a top web merging merges with the top of the journal box, the top with said top, the bottom of the top having four symmetrically placed beveled inner surfaces 15 of the journal box having pairs of bottom beveled surfaces, the beveled surfaces of one pair being spaced from the front and rear ends of the jour spaced from the front and rear ends of the jour nal box, each pair of which transversely of the nal box and arranged respectively at opposite frame is spaced a distance equal to the width of sides of the inner lug and being in substantially the tension member. 3. In a railway car truck side frame, integral 20 the same pla-ne as the bottom surface of the web of the tension member. tension compression and jour-nal box members, 6. A railway car truck side frame comprising the tension members having a top web merging an integral compression member, tension mem with the top of the journal box member, the jour ber, and journal box, the compression and ten nal box member having a substantially horizontal top and inner and outer lugs provided with side 25 sion members converging toward the journal box and each bei-ng of inverted channel shape, a walls merging at their upper ends with the top spring seat formed on the medial portion of the of the journal box member, said top of the jour tension member, and columns connecting the nal box member having internal beveled sur faces arranged at opposite sides of the lugs and tension and compression members, said tension tension compression and journal box members, the tension member having a top web merging with the top of the journal box member, the journal box member having inner and outer lugs Vprovided with side walls merging at their upper spring seat being wider than the remainder of the tension member and said remainder being of box section, opstanding flanges provided at spaced from the front and rear ends of the jour 30 member having an inclined top web terminating at and merging with the top of the journal box nal box. and the top of the spring seat, the top of the 4. In a railway car truck side frame, integral ends with the top of the journal box member, said top of the journal box member having in the edge portions of the spring seat and merging at their ends with said columns, the top of the journal box having pairs of bottom beveled sur faces, the beveled surfaces of one pair being ternal beveled surfaces arranged at opposite sides 40 spaced from the front and rear ends of the jour nal box and arranged respectively at opposite of the lugs and spaced from the front and rear ends of the journal box, and the beveled sur faces adjacent the inner end of the lugs being in substantially the same plane as the bottom surface of the web of said tension member. sides of the tension member and being in sub stantially the same plane as the bottom surface of the web of the tension member. HARRY W. STERTZBACH.