Патент USA US2411163код для вставки
NQV. 19, Égëß» Q_ A LYQN 2,43%352@ WHEEL TRIM Original Filed Jan. 20, 1940 30 2 Sheets-Shes?l 1 Patented Nov. 19, 1946 2,411,163 .UNITED STATES PATENT ÜFFICE 2,411,163 WHEEL TRIM George Albert Lyon, Allenhurst, N. J. Original application January 20, 1940, Serial No. 314,818, now Patent No. 2,316,346, dated April 13, 1943. Divided and this application July 2, 194.2, Serial No. 449,39 6 l 3 Claims. (Cl. 301-37) 2 This invention relates to a wheel trim and more particularly to a wheel trim which may be re Figure 1 is a front elevational view of a vehicle wheel and trim wheel assembly, with a portion siliently snapped into substantially permanent of the trim ring broken away to illustrate the engagement with a wheel. This application is portion a division of my copending application, Serial 5 attached;of the wheel to which the trim ring is Number 314,818, entitled "Method of making Figure 2 is a partial vertical sectional view of wheel trim,” filed January 20, 1940. the trim ring and wheel assembly taken along the line II-II of Figure 1; Figure 3 is an enlarged fragmentary sectional view showing the manner in which the trim ring is attached to the wheel; Figure 4 is a fragmentary sectional rear view showing the manner in which the attaching means 'I'he majority of vehicle wheels of today are equipped with ornamental trim members includ ing a trim ring or annulus which is substantially permanently attached to the wheel, These trim rings are usually formed with a highly polished exterior surface and for that reason relatively expensive metal is necessary in their manufac ture. In order to reduce manufacturing costs to a minimum, it is desirable to manufacture these trim rings from extremely thin metal stock. The thickness dimension or `gauge of the stock employed is governed to a large extent by the nature and character of the attaching means on the trim ring engages the wheel; view similar to Figure 3 showing a different em bodiment of the present invention; Figures 6 and 7 are fragmentary sectional views - which of a die thepress trim illustrating ring is formed; the novel and manner which is formed on the wheel trim for attaching ` Figure 8 illustrates the manner in which an the wheel trim to the wheel. annulus having projecting arms is blanked from It is an object of the present invention to pro vide a novel wheel trim which is secured to a a ñat sheet of metal stock. Referring now to the embodiment of the pres wheel in a novel manner and which is manu factured from relatively thin metal stock by a novel method. Another object of the present invention is to provide a wheel trim or trim ring having a plu rality of novel attaching fingers thereon. A further object of the present invention is to ent invention illustrated in Figures 1, 2, 3, and 4, there is shown a trim ring and wheelY assembly comprising a vehicle wheel iii and a trim ring l l. The wheel Il] comprises a rim part i2 and a body part i3, The rim I2 is of the usual drop center 30 type and includes a base íiange i 4, opposite inter mediate side flanges I5, opposite inter-mediate base flanges I6 and opposite edge portions il. The drop center rim I2 as illustrated is of the type commonly employed in the automotive vehicle provide a wheel trim or trim ring having integral attaching lingers thereon which are cold worked in a novel manner to increase their stiffness and strength. art of the4 present day, and, as is well known to those skilled in the art, is arranged to receive Another and further object of the present in vention is to provide a novel apparatus for form>ing wheel trim or trim rings of very thin sheet metal stock. i and accommodate a pneumatic tire (not shown). The body part I3 of the wheel iii includes, in general, a rearwardly extending outer `flange i8, outer web portion I9, a generally axially rearwardly and slightly radially inwardly extend ing inner web portion 29, and a radially inwardly extending wheel mounting flange 2i. The rear wardly extending outer flange l 8 is secured _to the One of the principal features of the present invention is the provision of a trim ring having integral attaching fingers thereon which ñngers are cold worked in novel apparatus in which they are pushed clear through the forming die which shapes the trim ring to its desired configuration underside of the base iiange I4 of the rim i2 in any suitable manner, such as by welding or rivet over a zig-zag or tortuous path. The novel features which I believe to be char acteristic of my invention are set forth with par ing (not shown). The circumferentially spaced portions of the flange I8 are depressed radially inwardly as at 22 to permit circulation of air through the wheel. The rear edges 23 of the de pressed pertion 22 are cut back as is clearly shown in Figure 2 of the drawings. The wheel mounting flange 2| is provided with an annular series of apertures 24 for the recep ticularity in the appended claims. My invention itself, however, bothl as to its organization and manner of construction, together with further objects and advantages thereof, may best be understood by reference to the following descrip tion, taken in connection with the accompanying drawings, in which: . ` Figure 5 is an enlarged fragmentary Isectional 55 tion of the usual wheel mounting bolts (not 2,411,163 3 shown), which bolts are arranged to extend therethrough and to engagement with the hub 4 3D respectively extend between two opposed faces a strut action is obtained which provides a very tight biting engagement. That is to say, due to portion or brake drum of the vehicle (not the fact that the radial inner face of the base shown). ' portion Id of the rim l2 is opposite and opposed The trim ring I I includes a principal body por Cu to the radial outer face of the depressed por tion 26 which is disposed on the front face of tion 22 there can be no radial outer flexing of the wheel IG to conceal the junction of the wheel the axially rearwardly projecting attaching arms. body part I3 and the rim I2. rI‘he trim ring il Furthermore, it will be seen that due to the yield also includes a plurality of attaching arms 21 .ability of the eurvate body portions 26 and 33 which extend first radially inwardly as at 28 and the gripping engagement of edges 3| and then axially rearwardly as at 29 along the ra 34 respectively with the surface of the body part dially inner portion or face of the rim I2. The I3, the trim ring I I may be sprung upwardly and arms 21 terminate in a pair of attaching nngers outwardly to augment the biting action oftips 30 which extend obliquely radially inwardly and axially forwardly into biting engagement with 15 3S and 31 respectively into the respective flanges I8. the depressed portion 22 of the wheel I0. The The novel apparatus for increasing the radial inner edge 3l of the trim ring II is seated strength in the attaching arms is illustrated in on the body part I3 of the wheel Iii while the Figures S, 7, and 8. More particularly, a portion radial outer extremity of the trim ring II is bent of the die press is shown which includes the back on itself as at 32 and is seated on the in 20 lower die part 33 in the form of an upstanding termediate side flange i5 of the rim I2. ring, a reciprocab-le lower die pad 33 which ‘is When the trim ring I I is mounted on the wheel mounted within the lower die ring 38, an upper II) the arms 21 are lined up with the openings die part 43 having a depending die ring 4I, and formed by the depressed portions 22, and the trim ring II is then moved axially rearwardly 25 an outer upper die ring ¿i2 which is disposed around the die ring 4I and arranged for relative of the wheel until the arms 21 slide into the reciprocation with respect thereto. The lower openings formed by the depressed portions 22. face 43 of the upper die ring 4I and the con fronting face portion 4d of the die pad 39 are ially rearwardly extending portion 29 of the arcuateiy curved in cross-section to give the de arms 21 telescope with the base flange i4 of the so sired configuration to the principal body portion rim I2 while the tips or radial inner extremities 23 of the trim ring il shown in Figures 1 to 4. of the fingers 30 ride along the face of the de Lower die ring 33 and upper die ring 42 form the pressed portion 2'2. The trim ring il is pushed hold-down portion of the die press and their axially rearwardly until the radial inner edge confronting faces are annularly corrugated as is As the arms 21 slide into these openings the ax 3l and the turned portion 32 are seated on the f body part I3 and the rim I2 respectively. Due to the angular position of the fingers 33 the ra dial inner extremities thereof make a biting en indicated at 45 and 43 respectively. The recip rocable die pad 39 is spring biased upwardly with respect to the surrounding lower die ring 38 by means of suitable compression spring 41. The upper outer die ring ¿i2 is spring biased down wheel Ill. Any tendency for the trim ring II to 40 wardly with respect to the inner die ring portion become dislodged from the wheel It only causes @I by means of suitable compression springs 48. the finger portions 30 of the arms 21 to bite To form the trim ring l! shown in Figures 1 deeper into the depressed portions 22 of the to 4 of the drawings a flat sheet of relatively thin wheel I0. It must be understood that a very tight and substantially permanent engagement ~^ metal stock ¿i3 is blanked to form a fiat annulus 53 having four projecting arms 5l'. The central is provided for securing the trim ring II -to the portion 52 of the blank «i3 may be used to form wheel I0. a hub cap or wheel disk or any other suitable In Figure 5 of the drawings l' have illustrated article. The annulus 5E! having the projecting a modified form of trim ring II for concealing arms 5i is then placed in the die press whichis the junction point of the body part i3 of the illustrated in Figure 6, the dimensions of the wheel i3 with the rim I2. More specifically, the relative die parts being such that the projecting trim ring I I of Figure 5 includes a principal body arms> 5l of the annulus 53 extend between the portion 33 which is of curved or arcuate cross hold-down parts 33 and d2 and the principal section and which is provided with a radial inner Y body portion o-f the annulus is disposed between edge 35i seated on the body part I3 of the wheel ' the confronting faces d3 and 44 of the die parts IG and a radial outer portion 35 which is dis 4l and 39 respectively. The upper die member posed substantially opposite the radial inner sur ¿iii is then lowered and as the outer upper die face ‘of the base ñange I4 of the rim I2. A plu ring d2 forces the arms 5i against the lower die rality of integral attaching arms are provided for ring 33 the arms 5i are given a tortuous cross the trim ring I I of Figure 5 which extend axially sectional configuration due to the corrugations inwardly from the radial outer portion 35 for 43 and ¿it in the confronting faces of Vthe lower gagement with the depressed portion 22 of the telescoping engagement with the base flange I4 of the rim I2 and which terminate in an obliquely radially inwardly and axially forwardly extend ing tip portion 31. The tip portion 31 is disposed at such an angle as to make a biting engagement with the depressed portion 22 of the wheel I3. The trim ring II of Figure 5 is mounted on the wheel I6 in the same manner as that described in connection with Figures 1 to 4. In connection with the description of the mounting of the trim ring I I of Figure 5 as well as of the mounting of the trim ring I l of Figures -l to 4 it will be observed that due to the fact that the obliquely extending tip portions 31 and and upper die rings 33 and d2 respectively. As the inner upper die ring ¿il forces the principal body portion of the annulus 53 against the lower die part 39 this action gives the principal body portion of the annulus 53 the desired configura tion of the principal 1cody part 22B of the trim ring I i as shown in Figures 1 to 4. ~ The downward movement of the upper die member ed is not halted at this point but is continued until the projecting arms 5I are com pletely drawn throughthe lower and upper die rings 33 and 42 respectively as is shown in Fig ure '7. The drawing or pulling of the arms 5I ' 5 2,411,163 6 through the die parts 38 and 42 causes the arms adjacent said rim part and having axially in 5| to move along a tortuous path and this move ment causes a cold working of the metal in the wardly disposed iianges bordering said depressed portions, said trim ring including an annular part projecting arms 5| which greatly increases their hardness and strength. The act of drawing the metal in the projecting arranged to cover a portion of the wheel and re taining means for securing the same to the wheel, said retaining means including a plurality of arms 5| over a tortuous path in the die press radially inwardly, axially outwardly disposed has the eiïect of providing a series of reversals lingers arranged for engagement with the adja of strain of the metal in the projecting arms 5| cent flange of the body part when wedgingly en beyond the elastic limit. This of course is due 10 gaged into a respective opening defined by a de to the fact that the corrugated curvature ini pressed portion of the body part, said annular tially given the projecting arms 5| is caused to part of the ring having an intermediate circular reverse as the arms are pulled over the corru shoulder portion arranged to supportingly gation. As will be fully understood and appre shoulder against an adjacent portion of the outer ciated by those skilled in the art, this novel ap 15 surface of the wheel when the ñngers are wedged paratus for working the projecting arms 5| pro into the wheel opening. vides a cold working of the metal without any 2. The trim ring of claim 1 further character substantial change in the gauge of the metal. ized by each of the fingers having its free ex It will thus be` understood that a cold working of tremity bifurcated to provide the ñn'ger with a the metal is obtained quickly, efficiently, and without any substantial loss of thickness in the metal. The cold working greatly increases the strength of the metal and thereby enables the use of very thin sheet metal stock in forming the trim rings Il. After the various die parts have been moved to the position as shown in Figure 7 the upper die member 4|) is retracted and the annulus 50 is lifted out. 'I‘he arms 5| are thereafter bent into the shape shown in Figures 2 and 3 to form the arms 21 of the trim ring ||'. While I have shown particular embodiments of my invention, it will, of course, be understood that I do not wish to fbe limited thereto, since many modifications may be made, and I, there fore, contemplate by the appended claims to 20 multiple of gripping points. 3. A trim ring for attachment to a Wheel hav ing a rim part and a body part secured 'concen trically against the inner surface of the rim part, said body part having circumferentially spaced, 25 depressed portions at the edge thereof deñning openings adjacent said rim part and having ax ially inwardly disposed flanges bordering said de pressed portions, said trim ring including an an nular radially inwardly extending part arranged 30 to cover a portion of the Wheel including said openings and retaining means for securing the same to the wheel, said retaining means includ ing a plurality of generally radially inclined ñn gers each arranged for gripping engagement with 35 the adjacent ilange of the body part when wedg ingly engaged in one of said openings, said an nular part of the ring concealing said fingers and having a radially outer turned portion connected I claim as my invention: to said lingers and arranged to supportingly bear 1. A trim ring for attachment to a wheel hav 40 against an adjacent portion of the outer surface ing a rim part and a body part secured concen of the wheel when the fingers are wedged in said trically against the inner surface of the rim wheel openings. cover all such modifications as fall within the true spirit and scope of my invention. part, said body part having circumferentially spaced, depressed portions »at the edge thereof r GEORGE vALBIiiR‘l" LYON.