US2237757A - Stainless steel truck - Google Patents

Description

. R. EKSERGIAN ET AL April 8, '1941.

syl-umass swzm.' 'fuuck Filed nec; 2, 1939. .4 shuts-sheet 1 y BY MISES/Z vegen,

April 8, 1941. R. EKsERGlAN Erm.

STAINLESS STEEL TRUCK v Filed nac. 2. 1939. l 4 shuts-shut 2 GN n mn .m y wrmmwm w m @www o BNN www .ow YNNNYN 9W Q. NN @.mwkl

April s, l194.1.

REKSERGIAN ETAL 2.237.757.

sunmsss stm. rnucx Find me. 2.' 1939 4 suena-sneu s I x .lill

I EHMIHIIIIN ATTORNEY .April 3, 1941- n'. :KsER''slAN Erm. 2,237,757

STAINLESS 'sf-snr. 'fuuck Filed Dec. 2', i939 4 `-Sheets-Sheet 4.

i BY N125' .lz'vesew Hy ATTORNEY Patented Apr. 8, 1941 vUNITED STATES' PATENT .OFFICE *A Y y 2,237,151

STAINLESS STEEL TRUCK Bnpen Eher-gian, Media, Reuben II. Horton, Y

Philadelphia, Henry K. Harwich, Darby, and i Nils K. Skivesen, Philadelphia, Pa.,v auignorsto Edward G. Budd Manufacturing Company, Philgdelphia, Pa., a corporation of Pennsylva pplication December 2, 1939, Serial No. 307,230

l" Claims.

The present invention relates to trucks.

More specifically it relates to trucks having frames built up mainly of relatively thin sheet metal elements and the like, which are connected to one another in any suitable way, as by bolts, rivets, or welding, so as to produce a very rigid structure which is, nevertheless, light in weight.

.A further object of the invention is to produce a truck which is quiet in operation and pleasing in appearance, and is particularly advantageous for use in high speed, light weight, railway vehicles.

Briefly described, the truck comprises two hollow side frames connected at their midpoints by a transom which is likewise hollow, said side frames being connected to one another also at their endsby transverse structural elements to space and brace them properly.

An illustrative embodiment of the invention is disclosed in the present specication, and is illusltrated in the drawings which accompanythe same and form a part thereof.

- In saiddrawings:

Fig. 1 is a diagrammatic side elevation of a` truck frame;

Fig. 2 is a view of the truck frame in perspective;

Fig. 3 is a transverse section through the structure shown in Fig. 1,' on the plane indicated by the line 3 3, certain portions of the bolster being shown in side elevation;

Fig. 4 is a partly sectional planlview of a portion of the structure shown'ln Fig. 3, the section being. made on the planes indicated by the broken line Fig. 5 is a transverse section through the tran som and bolster, the section being made on the planes indicated by the broken line I-S oi Fig. 4;

Fig. 6 is a plan view, partly in section, of a fragment of the frame, the section being made on the planes indicated by the broken line --G of Fig. l;

Fig. 7 is a corresponding vertical section through one half of one of the side frames, the section being made on the planes indicated by the broken line 1-1 of Fig. 6; and

Fig. 8 is an elevation, partly in section, through one half of the truck, the axle being partly broken away, and the section being made on the plane indicated by the line 8-'4 of Fig. "I.

` Itwill be understood that Figs. l and 2 are relatively on a much smaller scale than the remaining figures.-

In all the ngures, corresponding parts are indicated by similar reference characters.

The general nature of the truck frame will be best `understood by the reference to Fig. 2, wherein are shown the two hollow side frames I, eonnected at their midpoints by the substantially square tubular transom 2, and connected at their ends by the channel members 3. For appearance i as well as for increasing the strength and stiffness of the side` frames, certain portions such as 4 may be embossed or pressed out of the nat sheet 5, forming the outer plate of each side frame I. as shown in Fig. l. Similar embossed or pressed portions 8 may be provided in the fiat sheet 1, forming the inner plate of each side frame I.

In the particular form illustrated the side plates 5 and 1 of each frame have the upper and lower longitudinal edges thereof parallel with one an other, while their edges atA the ends are curved semi-circular. 0n all of said edges of said plates 5 and 'I outstanding flanges 5 and l respectively are formed, said iiange 5 being continuous while the ange l has portions cut away near each end thereof.

Flanged apertures 8 are provided in the sheets 5 to provide access to the interior of each side frame, and suitable covers or closures may be provided for said apertures 8, if so desired. Each inner plate I has near each end and extending' upwardly from the bottom an opening I0, to accommodate the journal box for the axle I I, all of which are arranged as Will be understood best from Figs. 6, 7 and 8.

The side plates 5 and 'I of each side frame are connected by a sheet metal top I2, which has a` substantially nat central portion and semi-circular ends, conforming in shape with the said side plates 5 and 1. A strengthening groove or corrugation I3 preferably extends the entirelength of the flat upper portion of each of the tops I2. In order to additionally strengthen the same, a correspondingly corrugatedI longitudinal piece of sheet metal Il (Fig. 8) is located below said top at each end of the iiat central portion, said strips Il having further bends therein, so as to form channels at the longitudinal edges, as shown at II, thus `providing abutments for the side plates 5 and 1.

The entire set of members I2, Il, i and 'l may be secured to one another in any desired way, as by bolting, riveting or welding, and adequate overlapping portions are available for this purpose, as shown. While the invention is not re- Buch fasteninss are indicated at I0, which reference character merely represents diagrammatically any selected type of such securing means.

Each side plate and] has, at its midpoint, a

flangedl opening I'l to receive the tubular transom 2. The nange is formed from the substance of the side plate itself, and the transom 2 is secured to the side plates by the fastenings I6, as

the plates i2 and the said channel members 3,

said plates i8 being curved to conform to the plates i2 and also being long enough to provide additional overlap on the cross vrnenfibers t, the said plates id being connected to both by the securing means it. The transverse members which are sub: tantially channel bars, may he further stidened and strengthened by bending out their edges, as shown at iii, thus providing very rigid crossA members with relatively light Weight material. At the bottom, the plates 5 and li are held together in spaced relation. by :flat metal plates 29, as shown in Figs. i and 3. These plates 2d however are relatively short, and leave open ses for the pedestais and springs, as will be understood from Fig. 7.

Further stilness is` imparted to the top por tion oi each side frame at each end by a sub stantially flat piece of metal 2i, (F g. d), having a corrugated piece 22 lying thereon, and secured thereto, as shown. The memher may have its lonmtudinel edges hanged, as shown at Eil, and secured to the side plat/es i. 2i which have been described as substantially hat, are bent slightly upwardly, beginning at the pmnt designated by 225i, in 7, in order that the plate 22 which lies above them may pass over the transom 2, 'and be secured thereto to aid in L rigidly connecting the side frame te the transom as best shown in said dgure. The side frames may be further braced by means of longitudinally extending corrugated elements positioned in the lower portions oi the frames between the plates 5 and 'l and beneath the transom which is also attached thereto by Welds or the like. Deep depending flanges S8 are formed at the opposite sides of said member @il and are attached to said plates and i by welds or the like. The members 22 and d@ extending, in the case of member 22, from end to end of the side frame, and in the case of member t3, from pedestal to ''ixdestah thus form with the sides and top and bottom members of the frame, box section top and bottom chords Vwhich greatly stifen the structure. Vertical members, such as 25, 2t and 21 are also placed between the plates 5 and l, said vertical members being substantially hat in their central parts, with ianges at their edges.

said anges being secured to the respective platesy to brace and stitlen them. The vertical members 2l, 20 and 21 are also flanged at theirv upper ends for attachment to either the member 2| or 22 while the lower ends of the members 26 and 21 terminate slightly short of thev member 83. The lower end oi the vertical member 25 extends further down than the members 26 and 21 and is The members f plate 20 and to flanges on the end of the member $3 abutting the side thereof.

CII

attached to a nangeon the ends ot the bottom 75 4cated in Fig. 5, the flat portion along one edge of each piece will become loca-ted beneath the lcorrugation on the opposite edge of the other piece,l whereupon they may be secured to one another, preferably by Welding or the like, to form a substantially square tube, with strengthening corrugations along two opposite faces. The vertical members 2l in the side frames are secured to the sides of the transom 2 to further strengthen the connection of the transom to the side frames.

This corrugated portion, which extends inward on the front and rear faces of the transom, serves also to support the pads or wear plates Sii, which are welded to the transom, and upon which slide the cooperating pads 3l which are carried by the bolster, so as to guide the same within the transom and allow adequate relative vertical movement. The transom may have flanged openings 32 at its bottom to give access to adjacent parts of the holster, and corresponding 'langed openings 33 at its top. There is also a larger flanged opening 3d in the t/op of the transom through which projects the center plate 35 of the bolster, which, in. cooperation with the side bearing rollers 3d, also mounted on the bolster, carries the Weight of the vehicle.

Referring now to Fig. 3, the general structure of the bolster di is here illustrated. It comprises a substantially horizontal central portion with triangular or wedge shaped ends, said ends being supported by the springs 3d.

Each spring @t has a retainer at each end thereof, each such retainer having an outer frange with a central depression i3d. While these retainers may be made in any preferred Way, those here shown are built up by welding together a fiat outer flange portion di, a truste-conical pord on the one hand, and against the transom on4 the other hand, said retainers 39 being secured 'to said inclined under-surface il of the bolster and to the transom where the same is connected 'to the side frame.

Box-like castings or orgings d8 are mounted on the supper side of the bolster near its ends and project through they flanged openings 33 to support the guides 49 for the rollers 36 already mentioned, which, in cooperation with the center plate 35, support the vehicle on the bolster.

Rubber buffers 50 are mounted on the plates 1 of the side frames adjacent the box-like elements' 48 to limit and cushion any undue transverse movement of the bolster.

In order to provide a Iresilient mounting of .the wear plates 3|, which are carried by 'the bolster, rubber cushionsv 5| may be provided, as shown tion, and in sheet metaly therev are no blow holes or other hidden defects, such as sometimes ap-y pear in castings even when most carefully made. Although the herein-described truck frame is a preferred embodiment of the invention, and has a pleasing appearance, in addition Ato its excellent mechanical properties, it should lbe understood that the same is merely illustrative of thel inventive features, and is not the sole form in which they may be embodied. For a definition of the scope of the invention, attention is therefore directed solely to the following claims. .f What we claim is: l

1. A truck frame consisting of side frames and a transom, each sideframe comprising spaced side plates of sheet material having outwardly flanged openings at their midpolnts through which the transom extends, said transom being in facial engagement with said flanges and attached thereto, and spacing members between said side plates and attached thereto, said spacing members being arranged y in facial engagement with said transom and attached thereto. A

' 2. A truck frame consisting of side frames and a transom al1 built up of sheet metal, each side frame comprisingspaced side plates having continuously flanged openings at their midpoints,

`. -said transom being of tubular formation andl extending through said openings in facial ensagement with said flanges and attached thereto, and members positioned between said side plates tion stinening plate runs from end to end of the and attached thereto for engagement with and' attachment to said transom, said members being arranged above, below and at opposite sides of said tubular transom.

3'. A hollow side frame for a truck, comprising elongated inner and outer side plates with curved ends, said side plates being -of a sheet metal and each vhaving .an outwardly directed flange at its marginal edges, said flangeV on said outer plate being continuous while the ange on the inner plate is interrupted by pedestal openings one at each end of said plate, other plates attached to said iianges of both plates providing top, bottom and curved end walls, and structural frame supporting members attached to said inner side plate at opposite lsides of said viding top, bottom and curved walls, and structural frame supporting members located beneath said frame at the pedestal openings and attached to the flanges of both inner and outer plates.

5. A hollow truck side framefabricated of side plates ilanged outwardly 'in their outer margins, the plate outwardly of the truck ex.- tending substantially unbrokenly from end to end of the frame except for a central lopening' to receive a transom and the inward plate also having a corresponding central opening but alone being provided with vertical pedestal openingsy arranged adjacent the ends of the frame, closing plates overlapping and secured to the flanged outer margins of the side plates, extending frame across the top margins of said openings in the side plates, the side walls of said channel overlapping and being secured to the side. plates.

7. A hollow truck side frame according to claim 5 in which a pair of generally channel section stiifening plates bridge the space between the side plates with 'the side rwalls thereof overlapping and secured to said side plates, one of said stiflening plates extending from end to end of the frame andflanking the top margins of the openings inthe side plates and the other flanking the bottom margin of the central openings and extending between the vertical pedestal j openings of the inward side plate.

8. A hollow truckside frame accordingy to claim 5 in which generally channel-sectionstiifening plates bridge the space between the lateral plates with their channel side walls overlapping and securedetc said side plates, a pair of said stiftening plates extending longitudinally, one above and one below the' central transom receiving opening and the other of said stiifening plates extending vertically and flanking the sides of of sheet metal parts, comprising elongated in'- ner and `outer side plates of substantially uniform width throughout their length and each having a flanged opening at its central portion to receive and secure a transom, and flanged outer margins, the marginal flange ofv the outer plate being'continuous while the marginal ange oi the inner plate is interrupted by pedestal openings one at each end of the plate, spacedplates extending from end to end ofthe side 'frame at the top of the frame, one overlapping and secured tothe marginal flanges of the side plates and the'other 'anged in its margins and having said anges overlap and secured to the side plates, similar spaced plates but extending only frompedestal opening to pedestal opening.

and similarly secured to the side plates at the bottom of the frame, and vertical stiifening vplates extending between and connected to the side plates at spaced points in their length.

il. A truck frame comprising side frames and a. transom biuili:l mainly of sheet metal; each side frame comprising spaced side plates having con-l n tinubusly ilanged openings, ,said transom being around the top, ends and bottom of theframe and broken only by said pedestal openings.

of tubular formation and of a size to house a sprung bolster, and extending through saidolcn-A ings in overlapping engagement with said danses and secured thereto. 12. A truck frame comprising side frames and :transom built mainly ofA sheet metal. eachl i f1 vertical side walls stiirened by abox section formation.

i3. A truck frame comprising side frames and a. transom built mainly of sheet metal, each side frame comprising `spaced `side plates having con tinuously flanged openings at their central portions, said transom beingoi tubular formation and extending through said openings in overlapping engagement with said anges and secured thereto. and generally channel section atii'fening members extending between the side plates in the margins of the anged openings and secured thereto through their channel side welle.

lll. A truck frame including side frames and n central transom built up mainly of sheet metal,

eniilv eide frames comprisinz elongated spaced side plates having rounded ends, said side platee each having an outwardly directed iiange at ita marginal edles, said iiange on the outer plate 1 continuous while the danse on the inner plate is -interrimted by pedestal openings, one

adjacent each end of sind pme, other-,contes overlapping and secured, to the anges of both side plates providing top, :bottoni and curved end walls, each side plate having e. continuous flanged opening at its central portion, raid transom being of tubular formation and extending through Y said openings in overlapping engagement with said danses and secured thereto..

15. Aftruokirame according to claim 14 in which each of the adjacent rounded ends of the side trames are interconnected by an. angular section member of sheet metal, the ends of said member each being widened by a plate having a wide overlap with the rounded ends of the ad-1 jacent side frame and secured thereto through the outwardly directed flanges of the side plates andthe overlapping other plete.'

` RUT-ml EKSERGIAN. REUEEN l. HClRTON. NILS E. iBKIVESEN. HENRY K. HARWICK.

Images