Патент USA US2106923код для вставки
Feb. 1, i938. M, H. TUFT 2,106,923 WHEELED VEHICLE Original Filed June l5, 1954 il 1 F3533 Patented Feb. l, 1938 UNITED STATES PATENT OFFICE WHEELED VEHICLE Miles n. Tun, noch Island, lu., assignm- to neere- ' & Company, Moline, Ill., a corporation of llli- nois , ‘ Original application June 15, 1934, Serial No. "730,758. Divided and this application Febru- ' ary 8, 1935, Serial No. 5,523 2. claims. y(ci. 28o-142) U This application is a division of my copending application, Serial No. 730,758, flled June 15, 1934, `now Patent 2,059,419 issued Nov. 3, 1936. The present invention relates generally to wheeled `vehicles and the like, and particularly to running gears for wheeled vehicles such as trailers, wagons and similar.- vehicles. The principal object of the present invention is the provision of a new and improved reach 10 pole construction by which the front and rear .gears are connected together for relative angular be embodied in any reach pole construction which reliance is placed upon the torque deñec tion of the reach member to provide the required permissive relative rotation -between the front and rear gears. In utilizing the torque deflection 'i to secure the required relative movement, the reach pole may be ñxedly or rigidly connected to both the front and rear gears so that there will be no chance for looseness, rattles and the like to develop. In the preferred construction', 10 which will be specifically described later, one gear may be rotated about the longitudinal axis of displacement about a generally longitudinal axis, the vehicle with respect to the other gear through ' whereby the vehicle can easily accommodate it self to ground and road irregularities without an angle of approximately 45° without stressing 15 the use of loosely connected parts which are the torsionally yieldable reach pole construction likely to wear, rattle, or lose their'p'osition or beyond its elastic limit. These and-other objects and advantages of the adjustment. In running gears for trailers, wagons and the present invention will be apparent to those skilled like, employing four wheels as distinguished from in the art after a consideration of the following detailed description of the preferred construc 20 20 trailers and vehicles of the -cart type employing two wheels, it is necessary that the front run ning gear be able to rotate about a generally lon gitudinal axis with respect to the rear gear. tion, taken in conjunction with the accompany ing drawing forming a part of this specification. In the drawing: Figure 1 is atop plan view of the running gear 1 or chassis of a vehicle embodying the principles Heretofore, it has been proposed to provide this 25 required relative rotation by making the reach pole in two sections, one iixed to each gear and the two sections being connected together for of the present invention;- rotation one with respect to the other', as by mak ing both sections of tubular cross section with 30 one disposed within and adapted to rotate rela tive to the other. However, under certain con ditions such constructions have been found to of Figure 1. Figure 2 is a longitudinal section taken along the line 2;-2 of Figure 1; and Figure 3 is a section taken along the line 3-3 , 30 . Referring now to the drawing, the wheeled Vehicle with which the present invention is con be objectionable, especially when used in trailers - cerned has been illustrated as in the form of. a and the like designed for high speed operation, trailer or wagon which comprises a running gear having a rear truck or gear _2 and a front truck 35 35 for under these conditions, the connection be tween the two reach pole sections, by which the or gear 3 connected together by a telescopic reach required relative rotation is secured may become a source of annoying rattles, especially after the connection becomes worn. 40 ‘ With these features in mind, thel principal ob-> ject of the present invention is, speciñcally, the provision of a two-section reach pole, each being pole construction indicated in its entirety by the reference numeral 4. Referring first to therear gear 2, ‘it will be seen that this part comprises an axle 5 on the outer ends of which there are 40 rear supporting wheels 6 and 'I _journaled by any . suitable form of bearing means. Disposed above of tubular cross section and one telescoping with _ the axle 5 but parallel with respect' thereto is a in the other, the section of smaller cross section rigid member 8 which is formed of preferably two angle irons 9 and I0, as best shown inFlg 45 45 being made longer than the other and extending ure 2. The member 8 is disposed an appreciable from one end of the vehicle to the other end distance above the axle 5 but has its ends con thereof, with the smaller reach pole section be ing fixedly connected to the larger reach polev _. nected with the shaft 5 by suitable bracket means. Each bracket means is made up of a pair of plates section in which it is disposed, such fixed con nections being rigid and permanent. By virtue each of Y which has a semi-cylindrical recess formed in the lower end thereof, the two recesses of such construction,l the required relative rota tion of one gear with respect to the other is ob-Y of each pair forming a cylindrical opening for tained in the torque deflection of the reachpole receiving the axle 5, and the plates of each pair section of smaller diameter. ¿In its more generic are rigidly bolted together and clamped around> aspects, this feature of the present invention may Y the axle 5 by means of a plurality of bolts, as 55 2 2,106,923 shown and claimed in my copending applica tion Serial No. 5,724, filed February 9, 1985. At its ce ‘trai portion, the axle 0 is connected to the angles 0 and I0 by a pair of plates I0 which are disposed between the vertical legs of the angles 9 and I0, as best shown in'Flgure 2, and rigidly connected therewith by means of a bolt 2|.` A pairof straps I0 embrace the shaft 0 and are securely bolted to the lower ends of the plates I0 by means of bolts 22 or the like. A nller plate 20 is disposed between the rigid member 0, com prising the angles 0 and I0, and the axle l. At its central portion the illler plate 20 extends be tween the plates I0. ` The rear gear is braced by truss means which 15 . 40 45 55 ' application. 'I‘he present invention is principally concerned with a new and improved reach pole construction, the preferred embodiment of which is illustrated in _the drawing and indicated in its'ent'irety by the reference numeral 4. ' The reach pole construction 4, which connects - the front and rear running gears together, com- ' prises two telescopically associated reach pole sections 05 and 00. Preferably these sections are of tubular pipe stock, and the outer diameter of the section 00 is slightly smaller than the inner diameter of therear section 00 to provide for not only strengthens the axle but at the same time provides for adjusting the pitch of the r'ear the telescopic association mentioned. The sec tion 00, hereinafter referred to as the forward section because it is connected 'with the front wheels 6 and 1. gear, is ilxed at its front end to the forward gear ' The truss means consist of a pair of truss rods 20, one disposed-on each side 20 of the axle 0, and these rods bear against an abut ment member 21 disposed in the center of the axle 0. Preferably,pthe abutment~ 21 is in the form of a triangular piece welded“ to the inner sides of the straps |0. but if desired the abutment 30 outwardly, as best shown in the aforesaid parent 2 and has its forward endextending through per forations in the lower portions of the plates 14 and is disposed below the front axle beam 40.> as Y best shown in Figure 2. In order to ilx the for ward end of the forward section 00 tothe front gear 0 a bar 00 is disposed in openings inthe 21 may be welded to the axle or may be formed as lower sections of the plates 14 and is welded to an integral part of one or both of the straps I0. the U-shaped bracket 10. If desired, the bar 'I'he truss rods 20 extend outwardly and upward- _ 00 may also be welded to the plates 14 directly. ly from the abutment block 21 laterally in oppo The rear end of the bar 00 is provided with a suit site directions and have their outer ends adjust able opening to receive a bolt |00, and this bolt is ably connected with the aforesaid bracket means ’~ utilized in securely ilxing'the forward end of the at points'above the axle 0. ` A rear bolster is pro reach pole section' 00 to the front gear. Secured vided for supporting the rear of the bed or body to the lower portion of the forward reach pole of the trailer and is preferably formed of a single section 00 is a reenforcing strap |02, which may piece of T-bar stock. 'I‘he rear bolster is carried be bolted to the reach pole section 00. The bolt on a transversely disposed semi-elliptic spring |00 passes through the reenforcing strap |02 and 36. the central portion of which is‘ bolted to the - a second bolt |00 disposed in the forward portion top of the axle member 0 by means of bolts 40 of the reach pole section 00 also passes through and 4| disposed .on opposite sides of the spring the reenforcing strap |02 and the forward end of and passing through holes in the flanges of the a second reenforcing strap |00 which may also angle members 0 and l0. The upper threaded be bolted to the reach pole section 00 if desired. l ends of the bolts 40 and 4| _pass through the rear The forward reach pole section 00 is braced ends of straps which will be referred to later but to the front gear 0 by means of a pair of upward which are such that when the bolts are tightened, ly and forwardly extending braces |01 secured, the central section of a spring 00 is rigidly fas- ’ as by bolts |00,l to a short transverse top plateu tened to the angle members 0 and I0 forming |00, as best shown in Figure 1. A U-shaped strap |I0 embraces the reach pole section 00 and has the member 0. Y The front gear 0 comprises a transverse beam its upper ends secured in place by the bolts |00. 40 which is preferably formed of plow beam stock -Preferably, the rear end ofthe reenforcing strap and is supported at its outer ends on a pair of |00 is welded to the plate |00. The forward ends dirigible wheels 44 and 40. Each of the front of the braces |01 are bolted to the top of the dirigible wheels includes or'is connected with» front spring 00 by means of the bolts 1| and 12, the associated end of the front axle beam 40 by the forwardmost ends of the braces |01 having a shaft and spindle assembly 41, the details of apertures to receive these bolts so that when they are tightened both the braces |01 and the spring which are disclosed and claimed in-my copend ing parent application of which this is a division. 00 are securely fastened to the front gear 2. In One advantage of this construction is that it al addition, a spacer ||2 is associated with the rear. lows'an exceptionally short easy turn, and if the bolts 1| and serves to hold> the braces |01 in vehicle is to be drawn by draft animals, they are proper position. . ' ` assisted greatly on rough and rutted roads by the The forward pole section 0l is further braced elimination of pole whip. to the front gear 0 by means of forwardly and A front bolster similar to bolster for the rear laterally outwardly extending braces Ill and ||0 gear 2 has been provided ‘for the front gear 0 - which are connected at their forward ends to and is supported in a similar manner on a trans >bolts 00 at the outer ends of the front axle beam versely disposed leaf lspring 00 'which rests uponl 40. yAt their inner ends the braces ||0 and ||0 and is bolted to a plate 10 by means of bolts 1|. are welded, as best shown in Figure 2, to the U and 12. The plate 10 is welded to the upper ends shaped bracket ||0. Auxiliary braces |20 and of a pair of plates or brackets 14 disposed on op |2| are ‘connected between the braces ||0 and posite sides of the front axle beam 40 and securely > ||4. intermediate the ends thereof, and the sta bolted thereto by a. pair of bolts 1l. Preferably, tionary .portion of the front wheel spindle las the vertical plates 14 include sections extending sembly 41 at each end of the front axle 40. 'I'he rear reach pole section 00 is nxedly con below thefront axle 40, and'to ‘the lower-most portions of the plates 14 a U-'shaped bracket ‘l0 nectedtotherearrunninggear2byaconstruc is welded and is provided with arms which re tion somewhat similar to that described above for ceive the inner threaded ends of truss rods 0I.` the front gear 0. The rear end of the rear pole 75 These truss rods extend upwardly and laterally section 00 'extends through perforations in then“ 2,106,928 ' 3 torsional deflection. Since the connections at plates I8, as best shown in Figure 2, and prefer ably the rear pole section 96 is welded to these the points mentioned are rigid and permanent plates. The rear reach pole section is braced by there is no likelihood of any weaving of the trailer a pair of upwardly and rearwardly extending or of rattles developing' at this point, and since there is no relative movement at these points of braces |25 and |26 which are fixed at their for ward ends to a short transverse bar |21, as by bolt connection, no wear can occur.> While I have shown and described above the means |28, which is also utilized to secure theretopreferred embodiment in which the principles of the ends of a U-ßshaped member |29 which em the present invention have been illustrated, it braces the rear reach pole section 96 and is other is to be understood by those skilled in the art 10 10 wise positioned in a manner similar to the U shaped bracket |||l associated with the forward that my invention is not to be limited to the bracing structure.n At their rear ends the braces specific means shown and described but that, in |25 and |26 are connected to the top of the rear fact, widely different means may be employed in -the practice of- the broader aspects of my inven spring 36 by the bolts 40 and 4|, the rear sec 15 tions of the braces |25 and |26 receiving both of What I claim, therefore, and desire to secure by these bolts. A spacer |36 is associated with the bolts 4|. The rear pole section 96 is further Letters Patent is: 1. A wheel supported vehicle comprising a. braced by means of a pair of braces |33 and |34, welded'at their forward ends to the U-shaped front gear, a rear gear, and means connecting bracket embracing the reach pole section 96 and said gears comprising a pair 'of reach pole sections 20 secured in place by the bolts |29, andthe rear rigidly connected with said gears, respectively, ends of the diagonal braces |33 and |34 are bolted one of said sections being torsionally yieldable or otherwise secured to the brackets atthe outer and having one end rigidly connected to one of said gears, and holding means adjacent the other ends of the rear axle 5. . 25 The tubular reach pole sections 95 and 96 are end of said yieldable reach pole section for rigidly connected together at their rear ends by means connecting said other end of the yieldable sec of a bolt |40, or the equivalent, which is disposed tion with said other section selectively at any one in aligned perforations in the reach pole sections. of a plurality of longitudinally spaced points on In order that the two sections may be clamped said other section so that the amount of torsional 30 rigidly together the upper perforation in the yielding of said first section remains constant i’or- 30 reach pole section 96 is made large enough to any given stress independent of the distance be receive a bushing |42 (Figure 3) which is forced tween the front and rear gears.v 2. A wheel supported vehicle comprising a' tightly down upon the upper side of the inner for ward pole section 95 by any suitable means, as front gear, a rear gear, and means connecting by a nut |43. The section 96 is provided with said gears comprising a pair of telescopically as tion. Y . additional openings, indicated by the reference sociated reach pole sections rigidly connected numeral |45, in which the bolt |46 may be dis with said gears, respectively, one of said sections ` posed to lengthen the wheel base of the vehicle. When the vehicle traverses uneven ground and the points of contact of the supporting wheels do not lie in the same plane so that the forward gear 3 is displaced angularly about a generally longi tudinal axis with respect to the rear gear 2, this being torsionally yieldable and having one end rigidly connected to. one of said gears, the other end having> an aperture therethrough, the other reach pole section being rigidly connected to the other gear, and means extending through said aperture for rigidly connecting said other end of relative displacement is provided for by the reach the yieldable reach pole section with said other , pole section 95 yielding in torsion, and the tor-. section selectively at any one of a plurality oi.' 45 sional yieldability of the latter is established by longitudinally spaced points on said other sec the fact that the member 95 is of appreciable tion so that the amount of torsional yielding of length and is rigidly connected at its forward end said iirst section remains constant for any given to the front gear and at its rearmost end to the y stress independent of the distance between the front and rear gears. 50 rear gear, the distance between the points of con nection being suñlcient to provide the required . MILES H. TUFT.