Патент USA US2109177код для вставки
Feb. 22, 1938. W. w. MacDoNALD 2,109,177 TRUCK Filed NOV. 2, 1935 2 Sheets-Sheet 1 Peten-ted Feb. 22, 193s -f l ' 28,109,177 UNITED STATES lPii'rlezN'r orales TRUCK wiuiam w. Maenonald, Mountain view. oeuf., ëssliigtfnor to Max L. Raseni'eld, San Francisco, l e Applicatie» November-‘2, l1935, serial No. 47.931 4 claims. (ci. aso-_1065) This invention relates to low bed heavy duty wheels is obtained by means of a pair of spaced trucks. Two ofthe essentials of a truck de- ~ parallel load rails I and 2, extendingthe full signed for heavy duty are (a) that the loading length of the loading platform, -and intercon platform be kept as low as'possible without di- nected by means of a pair of spaced cross rails 5 -minishing the required road clearance, and (b) 8 and 4, and by a rear end rail 5 defining the 5 that substantially the maximum overall width of width of ' the loading platform. Welded to the a Vehicle permitted by state laws be made avail- inner corners of _the rectangle'formed by the rails able for loading purposes without resorting to I, 2,'3 and 4 are spring carriers 6 which also serve loading platforms having two or more levels. to make the frame„more rigid. Welded to the l0 These conditions should of course be met without cross rail 3 at spaced points substantially in line 10 decreasing the requisite strength of the chassis with the inner faces of the spring carriers 6, are or frame, and in_ this -connection it- should be a pair of main rails 1 and,8'extending forward borne in mind that heavy duty trucks are as_a beyond the front end of the load rails I and 2, in rule not provided with bodies, and consequently _ parallelism therewith to form _the vneck of the l5 the frame must of itself be Ísuil‘lciently rigid toV frame and to support the engine. It will there- 15 withstand distortion. fore be seen that the main rails 'I and 8 together One of the objects of this invention is the pro- with the load rails I and 2 and the cross rail 8, Vision of Aa rigid, low-bed heavy-duty truck may be considered as >forming interior offsets chassis. 2O _ ' j within which thesprings 9 are _adapted to lie'. "Another, object of the invention is the provision of a simplified jack shaft and spindle assembly by means of which the bed' of a vehicle may The springs 9 may also be- considered as lying 20 within the load' rails I and 2, and-the rearward continuation of lines defined by the main rails bemaintained close to the ground. ‘l and 8. Extending between the main-rails 'I and ’ v Still another object of the invention is the pro- 8 in line with the forward ends of the load rails vision of va spring carrier assembly which permits y I and 2 is a forward end rail I'I, and extending 25,. flexibility of movement of the vehicle springs, loutwardly from the main rails 1 vand 8 in line and enables the bed'of the vehicle to be main- vwith the forward end rail I Il are rails _I2 and I8 tained close to the ground. e.” welded to the load rails I and 2. Extending out-` _ Another object of the invention is the provision wardly from the load rails I and 2-from points substantially in line `with the spring carriers 6, 30. 30 of a new and novel oil seal between the wheel hub and its associated oil hood. ' The invention possesses other advantageous features, some of which with the foregoing, will be set forth at length in the following description 5 where that form of the invention which has been selected for illustration in the Ydrawings accom- panying and forming a part of the present speciñcation is outlinei-lv in full. In said draw/ings,- one form of the invention -is shown, but it is to be [10 understood that it is not limited to such form, are a pair of cross rails I_5 and I6 which define with the load rails I and 2, rectangular recesses for- accommodating the rear wheels of -the vehi cle. Extending between the outer ends of the rails I3 and I5 and/ welded thereto are side 35. I rails I1. - Extending b'etween the load rail 2 and the side rail I'l are a number of spaced stiil‘ening cross rails I8, I8 and- 2l. 'A cross rail 22 in line _with the cross rail I 8, extends between the load rail 2 40‘ since the invention as set forthin the claims may _ and the main rail 8 and a cross rail 23 in line with be embodied in a pluralityrof forms. _ the rails I8 'and' 22, iëxtend’s between the main Referring to the drawings: _ rails 1 and 8. In the same manner a cross rail 24 _, Figure 1 is a plan view of the frame of a-heavy in line with the cross rail 2|, extends between the Y 45 duty' truck with part of the loading platform broken away to more clearly disclose the object of my invention. ’ - the main rails ,1 and 8. Figure 2 is a side elevation of the frame illustrated in Figure 1. 50 , _- » - _ Figure 3 is a vertical section taken on'th'e line 3-3 of Figure 1. ' „ _ y Extending between `the cross rail 4 and the rear end rail 5 intermediate their ends, is a central rail 26. Extending be tween the cross rails 3 and4 are a pair of vspaced 50 angle iron ñoor rails 21 and 28. -All of the rails Figure 4 is a section taken on- the line 4_-4 of Figure 3. load rail 2 and the main rail 8 and across rail 25 45 in line with the rails 2| and 24 extends between _ .AsI illustrated in Figure 1 a single deck loading 55 plat‘orm of maximum width between the rear> above referred te with- the exception of rails 2l and 28 .are formed'of channels, and all joints are made by welding. -. ‘ 4 ` _ Since the frame is symmetrical with respect to 55 aioaxwl its'center line it is felt that the above description ` the opposed lateral walls of the spring carrier of the lower half of Figure 1 sumciently illus " 1I by means of bolts 1I.-passing through lugs- 14 is a cup shaped spring retainer 1i. 'I'he base of trates the construction involved without the lgie cessity of _ detailing the upper half. , ' the spring retainer is provided with a setfscrew ‘ Centrally located within the rectangle formed , 14 by means of which the vertical position of a ' by the'raìls I, 2, 3 and 4 is-an axle housing 3l [to the outer ends of which are secured the -leaf rubber 'cushion _11 may be adjusted as desired to . regulate the elevation of a ball bearing 18, seated on‘the cushion 11. 'I‘he upper and lower ends of the cushion 11 are'provided with metallic "springs s. by means of the usual u-bolts :2. The lower edges of the load rails I and 2 are notched as at. Il to receive the rear wheel spindles of tl‘e washers 19 to prevent direct contact of the ball 10 bearing 10> with the rubber cushion 11. Extend vehicle„ _and to compensate for- this weakening they are reinforced' by stiffening plates 34. ing`> through the ñooring 31 and the ceiling. 12 of the spring retainer is a grease or oil fitting II vided with an inwardly extending flange 35, the for lubricating the upper face of the leaf spring free end of which -is adapted to seat on the upper .j 9 the ends of which extend between the ceiling edge of the web of the „rail 2,'and with a. depend 12 and the ball bearing 18.- This construction ing leg `“adapted to exigage the inner face of the has vtwo advantages; in the ilrst place yit elimi web. By following this construction it'will be . nates the >necessity of the usual spring shackles, seen that the Awooden flooring l1 may be extended thereby making it possible to lower the frame of over the flange I5, thereby taking advantage of . the vehicle by several inches,-and in the second 20 As . _shown in Figure 3 the stiifening plate 34 is pro the width of the rails I and 2. _ ' In order to maintain the bed of the truck as . low as possible resort is made to the _Jack shaft> and spindle assembly as shown in »Figure 3. I -place due tothe single point contactA of the bail bearing 18 with the lower face of the spring 0, .. a rocking motion of th‘e' spring is permitted as '« well as longitudinal movement. Extending upwardly` from the outer _end -of the axle housing 3i is _a bracket 42 provided with a non-tapered or straight bore 43, the axis of which lies in a'plane passing _through the axis of a jack shaft 44, accommodated in the axle housing 3|'. Seated in _the bore 43 is a wheel spindle 45, provided with a shoulder 46. adapted .`,-‘-to abut the Youter face of the bracket -42. Pref erably the spindle 45 is secured in its position ' ‘ t From the above description it will be observed that a low-bed,'single-deck heavy duty truck has been provided in which all available space between the rear wheels" has been utilized" for the , loading platform. All' bends in the main rails have been eliminated and the frame has been so 30 constructed that‘a very rigid structure is ob tained. The :lack> shaft and spindle assembly and 1in par cular the elimination of _the usual @merely by means o'f a weld 41. Seated over the tapered co ections between the spindle and outer free end of the' axle housing 3i and the axle housing providesv a simple, rigid construction 35 - .intermediate portion of the spindle`4i isa gearA in which the spindl may be easily removed by housing 4l, within which is adapted to rotate ' merely cutting its „a pinion “splines to the end @finie Jack shaft housing. ~ _. 44, and va ring gear 5| in mesh with the pinion _ - 'I claim; '49 and secured to the wheel hub 52. The wheel " hub 52 is journaled on the wheel spindle 4I by means of bearings 53 and 54, and the jack` shaft 441s iournaled within the axle housingjl by means of bearings 5I which preferably support the jack shaft just beneath the upper wall of ‘the housing. Since the pinion 49 is arranged to mesh with the ring gear 5I it will'be obvious that the.,rotary motion‘of the jack shaft~44» will be elded Joint with the axle , _ ' ' ' i' 1. A vehicle frame comprising: a'pair of spaced lparallel load rails forming a part of a loading platform; a pair of spaced parallel forward and .rear cross rails extending between said load rails: spring receivers secured in _each -'of' the `yfour corners deiined‘by said load and cross rails; and a .Pair of spaced parallel main rails extending withinn said load ,rails and secured at their rear Y »ends to said front cross- rail, the main rails being spaced from the load rails so as to lie just ' transmitted to the wheel hub B2. _The important features of this construction are (d) that the inside the spring receivers. wheel spindle 4l is' disposed directly above the _ v ' l 2. A vehicle chassis comprising: a pair of Jack shaft 44, thereby keeping the. axle housing spaced parallel load rails forming a part of- a and the truck frame _as low as possible andÍ loading platform; spaced forward and. rearl cross ‘ that the wheel spindle 45 is securedf to the axle rails extending .perpendicularlybetween said _load housing 3| in a very simple and positive manner which permits of _its ready removal. rails and defining _therewith a rectangle adapted ' . to overlie the a Formed on _the .outer face of the wheel hub l2 is a peripheral channel I1 adapted to loosely e housing of the vehicle ;- spring . . carriers secured within the four inner corners` of said rec jfïjgle; receive an inwardly extending ñange 62 _f_ärmed .pair of mainrails secured to the forwal‘d cross rail at _spaced points within the. integral with or as n part qt an ou hoòd u bolted or otherwise secured to the ßgear- housing forward spring carriers and e‘xtending beyond and in parallelism withjtheforward ends of said » 4I. Just outwardly of the channel 8| is an vout load rails: and cross rails secured between «the` - wardly facing oil channel B4. Ordinarily any oil leaking outwardly past the ring gear Il goes no farther 'than the .oil channîel 64 and `dûe _to the forward en_ds of said load railsand- saidA main 3. A vehicle chassis comprising: 'a pair of ‘rotation of'the hub _I2 any oil received in the spaced parallel load rails _forming of av channel 44 is forced to travel outwardly over loading platform; forward and vrear cross rails) thering ge’ar. However, if by any chance some '„oil should pass channel 64 it can go )fno _ _ ~the _ fio farther than the flange 42./ f ‘ extending perpendicularly- 1- between., ï 'said load ¿_ rails so as to form therewith'a rectangle adapted . ~ _ ' Another expedient resorted to in order to'main ‘tain thebedof the truck-as_low as po the spring carrier assembly -shown in ble, is _ gure 4." This assembly comprises anopen ended spring .carrier 1I provided ,with la ceiling 12. Secured to tooverlie the axle housing `lof theyehicle; springl -70 " carriers secured within: the four 'corners ofsäd ' i _' rectangle; a pair of mainrails securedfto è J forward cross rail at spaced Points within _the for ward spring carriers’and extending ,beyondv and in parallelism with the forward ends of‘said load. 1g _ 2,109,177 rails; and forward and rear end rails secured across and extending beyond said load rails to deiìne the width of said loading platform. 4. A vvehicle frame comprising: a pair of spaced parallel load rails forming a part of a loading platform; forward and rear cross rails secured to and extending between said load rails at the rear end of said frame; a pair of spaced parallel main rails secured to said forward c_ros-sÍ rail and ex-~ tending forward thereof in parallelism .with said v load rails; and a pair oi' vehicle springs secured within the four corners formed by said load rails and forward and rear cross rails immediately 5 adjacent to and in parallelism with said load rails. WILLIAM W.A MAcDoNALD.