USRE14750E - Trout-axle c - Google Patents

Description

A. P. BRUSH.

FRONT AXLE CONSTRUCTION.

APPLICATION FILED JUNE 5.1911.

Reissued Nov. 11, 1919. 14,750.

. UNITED STATES n orrron.

ALANSON P. BRUSH, F DETROIT, MICHIGAN.

FRONT-AXLE CONSTRUCTION.

Original No.

Specification of Reissucd Letters n Reissned Nov. 11, 1919.

reissue filed June 5,.1 917. Serial No. 172,965.

To all whom it may concern of Michigan, have the vehicle;

Be it-knownthat I, Arnxsois P. Bncsu, a citizen of the United States, residing at Detroit, in the county of Wayne and State invented a certain new and useful Improvement in Front-Axle Construction, of which the followi'ngis a full, clear, and exact description. p

This invention relates to improvements in those parts of the front axle mechanism of a motor car which have to do with steering andvthe chief object of the i.n- 'vention isto insure the proper lubrication of the relatively movable engaging surfaces.

The invention consists in the construction and con'ihination of parts hereinafter described and pointed out definitely in the appended claims. i

In thedrawing Figure l is a plan view of a. front angle in which the present invention is embodied. Fig. 2 is a front view partly sectioned of-the said axle mechanism. Fig. 3 is a vertical section. in the plane of line 33 on Fi .1. Fig. 4 is a horizontal section in the plane of line ll on Fig. 3; and Fig. 5 is iLolluIlZOlltill section in line 5-5 on Fig.

In the specific exelnplificationgand embodiment of the invention shown in the drawing, A represents the front axle, which is provided at its ends with two vertical sleeves a, a. v

B, B. represent the two steering knuckles. Each has a, supporting spindle l) which is rotatahly mounted in one of said sleeves, (1-, as hereinafter described. Each steering knuckle has also a wheel spindle Z en \vliich one of the trout steering Wheels of the vehicle is tohe mounted in the usual way. Each knuckle. has also an. arm h; and these two arms I) are pivotarlly connected with that both steering knuckles may he turned opposite ends of the link C order.

simultaluiously about the sixes of the support-' ing spindles. ()ne of these knuckles has also an arm b which :for connection by suit able uiechnl'iism with the steering Wheel of the vehicle.

The nmnnerin which each of the spindles I) is rotatahly mounted in one of the sleeves u. is clearly shown at the right side of Fig. 2. flanged bushing E is driven into the upper end of said sleeve (I. until its outwardly extended flange (5 engages the top of the s urfacc nndsleeve (i are as in the eel anti-friction halls.

sleeve. A flange bushing into the lower end of each sleeve until the flange (J at the lower end of said hushin engages the lower end of said sleeve (1.. l hen so tightly driven into the sleeve. they be come, in effect, parts of v furnish the lix cylindrical bearings for the spindle .5. aid spindle adjacent to its u pper end is rot-stably mounted in the bushing E. Said spindle iieanits lower end goes through and has a tongue and roove connection with a bearing sleeve which is rotatably mounted in the bushing D,--the tongues 5" being preferably formed on the spindle and the grooves y" being preferably formed in and cut through the sleeve G. This sleeve (,fprojects below the loushinrr D; and this projecting end is formed Witran outwardly extending flange g. The upper oi the flange g, and the lower endv of the bushing l) are the load supporting surfaces oil? the described inechanirnn; and obviously they ought to be well lubricated at all times. These load supporting surfaces may he finished before the bushing D embled in connection with the other carts, and this irrespective of whether said surfaces are to he plain, as shown, or are to be adapted for cooperation A curved washer l may be fitted around the upper end. of the spindle I) in such Wise that its edges embrace the upper end of the hushing E, and a felt washer K may be placed Within this curved washer so as to engage the top oi: said bushing and. make adast tight joint. v

A nut H is screwed onto'the projecting lower end of the spindle until the load supporting surfaces of the sleeve (5? and bushing'l) are in proper relative position. Fi nally a rap nut J is screwed into the threaded periphery of the flange 4,.

said sleeve, and thev 1 known manner, with interposed .It is to he noted the construction asabove described in detail, constitutes good practical specific means for forming at each end of the axle a lubrication well which is closed at its lower end and open at itsuppei' end ior the insertion ol" the spindle which is rotatably mounted therein. Also that the lower end of this well is abruptly enlarged in diameter,wl1ich result is attained by? screwing the-cup out onto the :MtcrpQripli crv of the flange 1] on the projecting lower cm of the bushing sleevel). It is llkewise evi' ent that the flanged sleeve G becon'ies in effect a part of the spindle: and that, when the nut ll acts to limit the downward |novement of said sleeve on the spindle, the flange g. which lies in the enlarged part of the lubricating 'ell, furnishes a thrust hearing which Irv cooperation with the upper wall of the enlarged part of said well, i. (a, the lower flanged end of the sleeve 1), supports the weight of the axle and its load.

.\n oil hole I! is formed through the. wall of sleeve 11, and through this oil may be polucd in such a quantity that it will fill the spa e within the sleeve it around the spindle b, and may also fill the cup nut J. Obviously, this oil will keep the loarl supporting surfacesof the sleeve G and the bushing I) thoroughly lubricated.

The arm 5 of each knuckle has its outer end 11 bent down so that its axis is substantially parallel with the axis of the spindle 71. The rod C. which is preferably tubular, has at each end a vertical sleeve 0 which opens from the top. The down turned end 7; of the arm L extends into this sleeve 0, and has within the sleeve :1 part 7) of reduced diameter between two annular flanges and I). A longitudinally split bushing M is fitted around this part 7/ between the two flanges referred to; and it has at its ends outwardly extended annular flanges m, m, which fit the sleeve. c. and therefore leave between its smaller middle part and the sleeve a space for oil: the lower flange m rests upon an internal shoulder 0' within the. sleeve o. A cap I. It N embraces the end b above the flange if, and screws onto the upper end of the sleeve c. This cap nut may contain a metal washer l" and a felt washer Q.

The tubular rod (1. or, at least, the parts near the ends thereof are to be. tilled with oil. However little oil there may be in this tubular iod. the swaving of the vehicle l'dewisc and the jars incident to use will insure that this oil will be sphsshed upon the bearing surfaces of the bushing .d and the part b of the arm 6 i Frmn the fon oing it wil' ippear that the bearings for the no .Hll lni. and for the two down turned ends If of the arms I)". have certain common charactcristics. That. is to" say, in each case the nou rotat lug |]|"!l'lb'-r has a lul'rrication well. and the bearing sin-laces carried by said non-rotatab e memiicr are in said well. .'\lso that said well h-ls its only opening through the top. and that the rotatable member passes into lln well through saul opeuil g and substantially fills the latt'erfland carries bearing surfaces for cooperation with the bearing surfaces carried b 3hr notnrolatalde member. whereby the said engaging hem-lug surfaces are in direct. ontact with the lubrication therein.

The novel and patentable characteristics of the connection between the cross tie rod and the arms N of the steerlng knuckles are reserved as the subject matter of another,

down through said sleeve and is rotatively mounted in the upper end thereof, a bearing sleeve which embraces said spindle and has a tongue and groove.connection therewith and is rotatably mounted in the lower end of said axle sleeve and has an external flange below said axle sleeve for supporting the latter, and a nut which screws onto the lower end of said spindle.

2. In front axle construction, the combination of an axle having at each end a vertical sleeve and the following mechanism associated therewith, viz: a steering knuckle having a supporting spindle which extends down through said sleeve and is rotativcly mounted in the upper end thereof, a bearing sleeve which embraces said spindle and has a tongue and groove sliding connection therewith and is rotatably mounted in the lower end of said axle .,lecve and has an external flangc'bclow said axle sleeve for supporting the latter, a nut which screws onto the lower end of said spindle. and means for introduc ing oil into the axle sleeve around the spin dle between the upper and lower bearings th ereof.

3. In front axle construction, the combination of an axle having at each end a vertical sleeve, and the following mechanism associated therewith. viz: a steering knuckle having a supporting spindle which extends down through said sleeve and is rotatively mounted in the upper end thereof, a hearing sleeve which embraces said spindle and has a tongue and groove sliding connection therewith and is rotatabtv mounted in the lower end of Said axle sleeve and has an external flange below said axle sleeve for siipporting the latter, a nut which screws onto the lower end of said spindle, means for introducing oil into thc'axle sleeve around he spindle between the upper and loner hearings thereof. and a cup nut, re.- mm abl v secured to the. lower end of the axle, sleeve.

l. l:: front axle construction, the comblnation of an axle having at each end a vertical sleeve and the following mechanism assm-iatcd with each of said axle sleeves, viz: a l|ll lllli 1f li. :cd in the upper end of said sleeve and having an outwardly extended flange which engages with the upper end of said sleeve, a bushing fixed in the lower end of the sleeve having an outwardly extended flange which engages the lower end of said sleeve, a steering knuckle having a spindle, the upper portion of which is rotatably mounted in the u )per bushing referred to, a bearing sleeve w ich embraces the spindle and has a tongue and groove connection therewith and is rotatably mounted in the lower bushing, said hearing sleeve having an outwardly extended flange whose upper surface engages the lower-surface of the lower bushing, a nut which screws onto the lower end of this spindle, and means for introducing oil into the axle sleeve between the two bushings therein,

In front axle construction, the combination of an axle having at each end a vertical sleeve and the following mechanism associated with each of said axle sleeves, viz: a bushing fixed in the upper end of said sleeve and having an outwardly extended flange which engages with the upper end of said sleeve, a bushing fixed in the lower end of the sleeve having an outwardly extended flange which engages the lower end of said sleeve, a steering knuckle having a spindle, the upper portion of which is rotatably mounted in the upper bushing referred to, a bearing sleeve which embraces the spindle and has a tongue and groove connection therewith and is rotatably mounted in the lower bushing, said hearing sleeve having an outwardly extended flange whose upper surface engages the lower surface of the lower bushing, a nut which screws onto the lower end of this spindle, means for in trc-zlncing oil into the axle sleeve between the two bushings therein and a cup nut which screws onto the flange of the lower bushing. f

6. In front axle construction, the combination of an axle having at each end a vertical sleeve and the fOllOWlflg mechanism associated with each of said axle sleeves, viz: a bushing fixed in the upper end of said sleeve and having an outwardly extended flange which engages with the upper end of said sleeve, a bushing fixed in the lower end of the sleeve having an outwardly extended flange which engages the lower end of said sleeve, a steering knuckle having a spindle, the upper portion of which is rotatablyag, mounted in the upper bushing referred to, a bearing sleeve which embraces the spindle" and has a tongue and groove conncction therewith and is rotatahlyen-i'ountcd in the lower bushing, said hearmg sleeve having an OlltWfl]'(ll 'ft'Xt(Il(ltil flange whose upper sin-fame engages the lower surface of the lower bushing. a nut which screws onto the lower end of this spindle, means for introducing oil into the axle slccvc between the two bushings therein and a cup nut which. screws onto the flange of the lower hashing,

and a curved washer embracing the spindle and having its edges embracin also the upper end of the uppcr bushing, and having packing material contincd' bctwccn said 'asher and the upper end of the bushing.

7. In front axle construction. the combination of an axle having at cach end a luhri cation well which is closrd at the bottom and open at the top, two stccring knuckles each having a spindle which cxtcnds (lo\\nward into the adjacent lubrication well and is rotatably-mounted therein. and a thrust bearing in the lower end of each well bctween the spindle therein and the axle by which the down thrust of the axle is supported by the spindle.

8. In front axle construction, the combination of an axlehaving at each end a lubrication well which is closed at thc bottom and open at the top and is of abruptly enlarged diameter adjacent the lower cud ,thereof two stcerin knuckles cach llilYlll" P" a'spindle which extends down into the adjacent lubrication wcll,thcrc being within the small dian'letcrcd uppcr part of the well bearing surfaces for the spindle con centric with the spindle whcrebv the spindle is rotatably mounted, and said spindle being provided within the cnlargcd Iowcr part of said well with an outwardly extended flange, there being thrust bcaring surfaces within the enlarged part of said well between the upper surface of said flange on the spindle and the u the enlarged part of said well. 7

9. In front axle construction, the coInhination of an axle having at each end a vcrtical sleeve, which extends through the axle from top to bottom, and the following parts associated with each of said slecvcs, \\-'iz: a

bushing fitted in the upper cud of said slecve and having an outwardly cxtcnded flange which engages the upper end of said sleeve, a bushing fitted in the lower end .of said sleeve and havin an out\\'ardl extended flange which engages the lower cnd of said sleeve, a cup nut which screws onto lhc outer periphery of the n'ojccting lower end of the last named bushing, a stcol'lng knuckle hay; ing a spindle which extends dc" n tl rou gh said sleeve from the top thcrcof andis rotatahly mounted within said bushing, and has below said sleeve liaiil, within said cup nut an outwardly extended flange which by coi'i cration with the lowcr cud of the lower hush ingfurnishcs a down thrust bearing for the axle.

10. In front axle construction, the combination of an tlXlU-llilViH at each cud a vcr tical sleeve which is closcd at its lower cud and open at its uppcr cud. a steering knucklc which is associatcd with cach of said slcevcs and which has a vertical spindle that pper wall of 10 steering knuckle which is associated with each of said lubrication wells and which has a spindle that extends down through the opening in the upper end thereof and is rotatably mounted in said sleeve, and means within said sleeve preventin the longltudlnal movement of said spmdle 1n said sleeve.

In testimony where-0L1 hereunto aflix my.

signature.

ALANSON P. BRUSH.

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