Патент USA US2105713код для вставки
Jan. 18, 1938. A. B. WERDEHOFF 2,105,713 FRAME Filed h-darch 25, 1935 I lllllllm ' BY ' 2 ’ 2 E V” Arromvjs. ’ 2,105,713 Patented Jan. 18, 1938 UNITED STATES PATENT OFFICE 2,105,713 FRAME Albert B. Werdeho?, Lake Orion, Mich, assignor ‘to Chrysler ‘Corporation, ‘Highland Park, "Mich, a corporation of Delaware’ Application March 23, 1935, Serial No. 12,577 10 Claims. (Cl. 280-106) This invention relates to motor vehicles .and being taken at lines 3—-3 and 4-4 respectively of refers more particularly to frame structures em Fig. 2. Fig. 5 is a side elevational view of my reinforc ployed in such vehicles, either as a chassis frame ing member. " adapted to receive the vehicle engine body struc In the drawings I have illustrated my frame 5 , 5 i'ture or as a frame adapted to be built into the body structure as a unit; ‘In motor vehicle frame structures employing rail members such as the side longitudinally ex tending rails, it is desirable to maintain a sub 10 stantially uniform rail cross-section along its length, especially with the more desirable types of'rail structures suchas the “box” or other hol low type, for example, since such uniform sec tion may be readily rolled at a minimum of ' cost ,15 when kept uniform in its section. I mention the box type of frame since a frame element of such type affords the desired high degree of stiifness and lightness of weight in the broader aspects of my invention, other forms of hollow rails may 20 be employed if desired. Since the frame structure and its component elements are subjected to stresses, usually bend ing stresses, of varying intensity along the length thereof, it is necessary to provide the frame ele~ 125 ments with suf?cient rigidity at‘its point of great est stress. However, if the. section of the frame element is maintained uniform, then this requires a section which is excessively heavy at other ,_.__30' points, usually at the ends. It is an object of my invention, to provide a frame structure or rail‘ element thereof which may be made of uniform section throughout its length and at the same time providing a simple and inexpensive reinforcing structure at the points "35 of maximum stress, the reinforced rail being preferably of the aforesaid box type to provide the desired high degree of rigidity for the weight of material used. My reinforcing structure is of a character affording great strength for the total 40 weight of materials involved. A further object of my invention is to provide an improved frame reinforcing structure which is of a self locating nature when app-lied to the frame rail, thereby facilitating the assembly process of 45 the reinforcing member with the frame rail. Further objects and advantages of my inven tion will be more apparent as this speci?cation progresses, reference being made to the accom panying drawing illustrative of one embodiment 50 of the principles of my invention and in which: Fig. 1 is a top plan view of the assembled frame structure. Fig. 2 is a side elevational View thereof. Figs. 3 and 4 are detail sectional perspective 55 views along a reinforced frame rail, the sections structure A comprising the longitudinally extend ing side rails or sills l0 and the connecting cross members ll of any desired form and arrange ment. For illustrating my invention I have shown frame A as the well known chassis type 10 having the usual front and rear kick-up portions l2 and I3, although such frame may constitute a part of the motor vehicle body structure if de sired. Rails l0 arepreferably of the box type and 15 may be formed by rolling the steel tube-like and welding longitudinally at a corner l4 although other methods of fabrication may be employed if desired as I do not claim such fabrication method per se as a part of my said invention. If de- 20 sired, the frame members or elements I0 and It may be fabricated or built up with a plurality of separate channels. In any event, these members may be regarded as elements of the frame struc ture. 25 Secured to each rail I0, preferably by welding thereto, is my channeled reinforcing member l5 which is preferably U-shaped in cross section for maximum strength and lightness of weight. The member I5 is preferably secured to a rail Ill be- 30 low the latter with the web I6 spaced from rail Hi to provide a relatively deep light section of great rigidity. The side v?anges of member 15 extend upwardly and overlap the lower side por tions of rail in in engagement therewith, the rein- 35 forcing member being welded to rail Ill asindi cated at 11. . In order to lighten the weight of the reinforc ing member l5, the web l6 thereof is preferably formed with a series of perforations N3 of any 40 suitable shape. The perforations in web l6 do not appreciably lessen the rigidity of the frame struc ture. The ends of the reinforcing member l5 are pref erably tapered at 19, the web It curving toward 45 rail. Thus, when member I5 is applied to the rail, these tapered ends engage the rail and thus provide locating means or stops whereby the rein forcing member is easily and properly applied for the welding attachment to the rail. In the frame 50 illustrated, the tapered ends 19 ?t rail l0 adja cent the inner portions of the kick~up portions I2 and I3. It will be apparent that a frame of any desired localized rigidity may be provided by varying the depth of the attaching member I5, 55 2 2,105,715} for example, while using the same rail M. This 7 frame member, and a reinforcing member for facilitates the manufacture of a series of frames sti?ening said frame member, said reinforcing of differing strength characteristics while reduc member being welded to said frame member and ing the number and cost of component parts nec extending downwardly therefrom, said reinforc essary for the manufacture of such frames. The ing member having a web portion spaced from strength properties imparted by the reinforcing said frame member intermediate the length member i5 may also be varied by altering the thereof, said web portion being de?ected toward angle of taper l9, where this feature of my in and into engagement with said frame member at vention is desired, it being apparent that the‘ less one end thereof. the taper of a given member l5 the less will be 7. In a motor vehicle chassis frame, transverse the depth of the reinforced rail section since the ly spaced longitudinally extending hollow side 1O rail ID will be further nested in the member I5. rails of substantially uniform cross-section I claim: 1. In a motor vehicle frame structure, a frame 15 ' throughoutltheir lengths, and means for stiffen ing intermediate portions of each of said side rails comprising a channeled reinforcing member vertically overlapping the lower portion of each 15 of said intermediate portions of said side rails and welded thereto. 8. In a motor vehicle chassis frame, trans element of substantially rectangular box-like cross-section, and a reinforcing member substan tially U-shaped in cross-section rigidly secured to said frame element and having side ?anges depending therebelow, the lower wall of said 20 frame element connecting the side ?anges of said reinforcing member. versely spaced longitudinally extending hollow side rails of substantially uniform cross-section 2. In a motor vehicle frame structure, a frame throughout their lengths, and means for stiffen ing intermediate portions of each of said side rails comprising a channeled reinforcing member element of substantially rectangular cross-sec tion, and a reinforcing member substantially U shaped in cross-section rigidly secured to said vertically overlapping the lower portion of each of said intermediate portions of said side rails frame element with the side walls of said rein forcing member engaging opposite sides of said frame element. 3. In armotor vehicle frame structure, a frame and welded thereto, each of said channeled mem bers having a web portion spaced below an as sociated side rail. element of substantially uniform rectangular 9. In a motor vehicle chassis frame, trans versely spaced longitudinally extending hollow 30 cross-section throughout its length, and a rein forcing member substantially U-shaped in cross section rigidly secured to said frame element and side rails of substantially uniform cross-section throughout their lengths, and means for sti?en ing intermediate portions of each of said side rails extending longitudinally thereof with portions of the side walls of said U-shaped member engaging comprising a channeled reinforcing member ver tically overlapping the lower portion of each of portions of opposite sides of said frame element, the engaged portions of said frame element ex tending within said side wall portions of said U shaped member. 40 4. In a motor vehicle frame structure, a frame element of substantially rectangular cross-sec tion, and a reinforcing member substantially U shaped in cross-section rigidly secured to said frame element, the side ?anges of said reinforcing member depending downwardly from said frame element, said reinforcing member having a web spaced from said frame element and provided with a series of weight-reducing perforations. _5. In a motor vehicle frame structure, a hollow frame member, and a reinforcing member for stiffening said frame member, said reinforcing member being welded to said frame member and extending downwardly therefrom, said reinforc ing member providing a hollow beam one wall of which is formed by said frame member. 6. In a motor vehicle frame structure, a hollow said intermediate portions of said side rails and welded thereto, the ends of said channeled mem bers curving upwardly toward said rails respec tively whereby to limit said overlap during as sembly of said members on said rails. _ ~40 10. In a motor vehicle frame structure, a frame element having a downwardly extending side wall, and a reinforcing member for stiffening said frame element, said reinforcing member having; 45 a side wall overlapping the lower edge of the side wall of said frame element and rigidly secured thereto, said reinforcing member further having a bottom web extending laterally from the lower edge of its said side wall, opposite end portions. ~ of said web being de?ected toward the bottom 50 of said frame element for engagement therewith and so constructed and arranged as to locate said reinforcing member with said frame element. ALBERT B. WERDEHOFF.