US2357043A - Body and chassis underframe - Google Patents

Body and chassis underframe Download PDF

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Publication number
US2357043A
US2357043A US265456A US26545639A US2357043A US 2357043 A US2357043 A US 2357043A US 265456 A US265456 A US 265456A US 26545639 A US26545639 A US 26545639A US 2357043 A US2357043 A US 2357043A
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United States
Prior art keywords
panel
sill
floor
secured
box section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US265456A
Inventor
Joseph Ledwinka
John W Kelly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Budd Co
Original Assignee
Edward G Budd Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US75375A external-priority patent/US2188267A/en
Priority to DEB3879A priority Critical patent/DE976324C/en
Priority to GB11254/37A priority patent/GB479716A/en
Application filed by Edward G Budd Manufacturing Co filed Critical Edward G Budd Manufacturing Co
Priority to US265456A priority patent/US2357043A/en
Priority to US519422A priority patent/US2405260A/en
Application granted granted Critical
Publication of US2357043A publication Critical patent/US2357043A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof

Definitions

  • the invention relates to a vehicle body and particularly to a combined body and chassis construction. More specifically the invention refers to a construction in which the underframe is coordinated with the body superstructure to provide box section side sills which may extend from end to end of the combined structure.
  • This application is a division of application Serial No. 75,375, filed April 20, 1936, on which Patent 2,188,267, Combined body and chassis underframe was issued on January 23, 1940, to the same applicants.
  • a further object of the invention is to provide a construction which permits the use of light gauge stock and to so arrange the joints enterng into the structure as to facilitate their attachment by spot welding.
  • Fig. 1 represents in side elevation a sedan type of combined body and chassis structure in'accordance with the invention.
  • Fig. 2 is an enlarged detailed sectional view through the threshold substantially on the line indicated by the line 2--2 of Fig. 1.
  • Fig. 3 is a detail sectional view on an enlarged scale taken substantially on the line 3-3 of Fig. 1 and looking in the direction of the arrows.
  • Fig. 4 is a detail sectional view through a cross member taken substantially on the line 44 of Fig. 2.
  • Figs. 5 and 6 are sections corresponding to Figs. 2 and 3 showing a modified fcrm of the invention.
  • Figs. 7 and 8 are sectional views corresponding to Figs. 2 and 3 showing a further modification of the invention.
  • the sheetmetal body floor panel constitutes a main element of the combined under'frame structure and may extend from the extreme rear of the combined structure to the extreme front and from side to side of the structure.
  • This floor panel is designated generally by the numeral 29 in Figs. 2, 3 and 4. At the front it may be cut away in the central region to accommodate the motor and at each side of this central opening it may be suitably reinforced by a marginal reinforce extending around theopening.
  • the floor panel may end at the front in the region of the cowl and suitable separate forward extensions for supporting the motor and the front wheel suspension may be provided, such extensions being secured to the reinforced box section side sills of the underframe rearwardly thereof by a telescoping or other suitable joint.
  • the present invention is concerned more particularly with utilization of this floor panel to form box section elements of the combined body and chassis frame, and the sheet metal body side panel indicated generally by the numeral 33 and extending from extreme front to extreme rear of the structure cooperates with the floor panel in forming these box section structures.
  • the combined structure may be built up with the minimum number of parts and the marginal portions of the parts entering into the structure are so shaped as to facilitate their joinder by spot welding.
  • the floor plate designated generally by numeral 29 is formed with a deep vertical web 30 which in turn is formed with a horizontally extending bottom flange 3
  • the body side panel 33 is joined at the bottom to the flange 32 and at the top the threshold portion 34 terminates in an upwardly extending flange 35 which is joined to the top of the floor plate 29 by a longitudinally extending bridging strip closing the box and designated 36, this bridging strip being formed with an upwardly extending flange 31 overlapping and spot welded to the flange 35 of the outer body panel, its inner margin overlapping the top of the floor plate 29 and being spot welded thereto.
  • the flange 31 seats in an offset provided in the outer panel and is spot welded thereto in the offset.
  • the outer panel 33 is offset slightly between the top bridging plate 36 and the bottom outwardly extending flange 3
  • the floor panel which itself forms a cross connection between the side sills is further reinforced by transverse members of channel section, as indicated at 38 and 39 which are preferably formed of upwardly facing channel members secured to the floor panel to form a strong box section transverse reinforce between the sills.
  • are welded not merely to the single sheet of the floor panel but are extended underneath the inwardly extending double thickness of metal formed by the joinder between the bridging strip 36 and the floor plate 29 and spot welded to this double thickness extension from the innerside of the box section sills.
  • the side walls of the cross member 38 are laterally flanged at their ends as indicated at 22 and 23, see Figs.
  • the cross member 39 forms in similar manner a box section cross member with the floor plate 29 and is secured to the box section side sill extending through. this region in substantially the same manner as in the form shown in Figs. 2 and 4.
  • the floor plate 40 is extended straight out to the body side panel 42 except for a slight upward offset in the region of the side sills and is flanged upwardly at its margin at 4
  • the outer panel 42 in this case forms the outer wall of the box section sill in the same manner as in the iormshown in Figs.
  • the'inner wall of the box section and at least part of the bottom wall of the box section are in this case formed by a separate sill element 45 of outwardly facing' channel section, the top wall of the channel overlapping the floor plate 40 in the offset and being secured thereto by spot welding while the bottom wall of the channel is flanged downwardly at 46 and secured through this flange to the lower margin of the body side panel 42 in the same marmer as that indicated in Figs. 2 and 3.
  • the cross members 41 and 48 are again secured to the floor plate and to the box section side sills in substantially the same manner as that shown in the earlier figures.
  • cross members 55 and 56 shown respectively in Figs. 7 and 8 are secured to the side sills again in substantially the manner shown in Figs. 2 to 6. However, where the lateral flanges from the side walls as I! overlap the double thickness of th metal of the flange II and the floor plate 50, they'are downwardlyoiiset as at 58.
  • the floor plate combines with the outer side wall panel just as it does in the form shown in Figs. 2' and 3 to form elements of the box section underframe structure. It will be noted that in all embodiments a third member cooperates with the floor plate and the side panel to form the complete box section framework.
  • an.underframe unit comprising longitudinal side sill members interconnected by transverse sill members, said side sill members being of outwardly facing channel form and at least one transverse sill member being of upwardly facing channel form, body sidewall structures having their lower marginal portions fastened to the upper'and lower margins of said side sill members as to form closed box sectional side sills, a body floor panel structure having its margins fastened to said side sill structures and being furthermore fastened along transverse lines to the upstanding walls of said channel formed transverse sill member as to form -a closed box sectional cross brace therewith.
  • a pair of transversely spaced longitudinal sheet metal side sill members extending over substantially the entire length of the structure including a threshand a wheel housing region; each of said sill members having an upstanding arm, a horizontal 49 may be made 01'.
  • a pair of body sheet metal side wall panels provided with threshold and wheel housing portions the lower margins of which overlap and are connected throughout their lengths to said flanges; a sheet metal floor panel extending longitudinally at least through the threshold and wheel housing regions and transversely from side wall panel to side wall panel; an upwardly directed flange along each longitudinal margin of said floor panel; said floor panel resting on and being secured to said horizontal arms along the upper margins of said sill members and overlapping and being secured to the interior of said side wall panels by means of its marginal flanges; said sill members, said side wall panels and said floor panel constituting together a combined body and a chassis frame structure having closed box sectional. side sills extending over the entire length of the body and their assembly being facilitated by the fact that said flanges connecting the sill members and the floor panel to the side wall panels extend out

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Description

Aug. 29, 1944. J. LEDWINKA ETAL 2,357,043
BODY AND CHASSIS UNDERFRAME Original Filed April 20, 1956 2 Sheets-Sheet l INVENTORS: 51C143 Joseph Ledw'u'zka.
By John W- leu A TTORNE Y .Q 3 2 k 4 Rn a mml fiwn 7 m Nd VN 5 S EE M I r 2 m w n LA s 1 0 m 2 W TJJ J. LEDWINKA ET AL BODY AND CHASSIS UNDERFRAME Original Filed April 20, 1936 Aug. 29, 1944.
Patented Aug. 29, 1944 2,357,043 BODY AND CHASSIS UNDERFRAMEl Joseph Ledwinka and JohnrW. Kelly, Philadelphia, Pa., assignors to Edward G. Budd Manufacturing Company, Philadelphia, Pa., a corporation of Pennsylvania Original application April 20, 1936, Serial No. 75,375. Divided and this application April 1, 1939, Serial No. 265,456
3 Claims.
The invention relates to a vehicle body and particularly to a combined body and chassis construction. More specifically the invention refers to a construction in which the underframe is coordinated with the body superstructure to provide box section side sills which may extend from end to end of the combined structure. This application is a division of application Serial No. 75,375, filed April 20, 1936, on which Patent 2,188,267, Combined body and chassis underframe was issued on January 23, 1940, to the same applicants.
It is an object of the invention to simplify the construction of such structures and to lighten their weight without materially affecting their strength.
A further object of the invention is to provide a construction which permits the use of light gauge stock and to so arrange the joints enterng into the structure as to facilitate their attachment by spot welding.
Other and further objects and advantages and the manner in which they are attained will become'apparent from the following detailed description when read in connection with the drawin gs forming a part hereof.
In the drawings,
Fig. 1 represents in side elevation a sedan type of combined body and chassis structure in'accordance with the invention.
Fig. 2 is an enlarged detailed sectional view through the threshold substantially on the line indicated by the line 2--2 of Fig. 1.
Fig. 3 is a detail sectional view on an enlarged scale taken substantially on the line 3-3 of Fig. 1 and looking in the direction of the arrows.
Fig. 4 is a detail sectional view through a cross member taken substantially on the line 44 of Fig. 2.
Figs. 5 and 6 are sections corresponding to Figs. 2 and 3 showing a modified fcrm of the invention.
Figs. 7 and 8 are sectional views corresponding to Figs. 2 and 3 showing a further modification of the invention.
In a body according to the invention the sheetmetal body floor panel constitutes a main element of the combined under'frame structure and may extend from the extreme rear of the combined structure to the extreme front and from side to side of the structure. This floor panel is designated generally by the numeral 29 in Figs. 2, 3 and 4. At the front it may be cut away in the central region to accommodate the motor and at each side of this central opening it may be suitably reinforced by a marginal reinforce extending around theopening. Alternatively the floor panel may end at the front in the region of the cowl and suitable separate forward extensions for supporting the motor and the front wheel suspension may be provided, such extensions being secured to the reinforced box section side sills of the underframe rearwardly thereof by a telescoping or other suitable joint. The present invention is concerned more particularly with utilization of this floor panel to form box section elements of the combined body and chassis frame, and the sheet metal body side panel indicated generally by the numeral 33 and extending from extreme front to extreme rear of the structure cooperates with the floor panel in forming these box section structures. In this way the combined structure may be built up with the minimum number of parts and the marginal portions of the parts entering into the structure are so shaped as to facilitate their joinder by spot welding.
In the construction shown in Fig. 2, the floor plate designated generally by numeral 29 is formed with a deep vertical web 30 which in turn is formed with a horizontally extending bottom flange 3| terminating in a downwardly extending edge flange 32. The body side panel 33 is joined at the bottom to the flange 32 and at the top the threshold portion 34 terminates in an upwardly extending flange 35 which is joined to the top of the floor plate 29 by a longitudinally extending bridging strip closing the box and designated 36, this bridging strip being formed with an upwardly extending flange 31 overlapping and spot welded to the flange 35 of the outer body panel, its inner margin overlapping the top of the floor plate 29 and being spot welded thereto. In the wheel housing region where the outer panel 33 extends upwardly to form the upper part of the wheel housing, the flange 31 seats in an offset provided in the outer panel and is spot welded thereto in the offset. To space the top and bottom walls of the box in this region the outer panel 33 is offset slightly between the top bridging plate 36 and the bottom outwardly extending flange 3| of the floor plate as clearly appears in Fig. 3.
At suitable points the floor panel which itself forms a cross connection between the side sills is further reinforced by transverse members of channel section, as indicated at 38 and 39 which are preferably formed of upwardly facing channel members secured to the floor panel to form a strong box section transverse reinforce between the sills.
In the region of the thresholds as shown in Figs. 2 and 4, the upwardly facing channel cross To further strengthen the connection between these cross members and the side sills, the laterally extending flanges 20"and 2| are welded not merely to the single sheet of the floor panel but are extended underneath the inwardly extending double thickness of metal formed by the joinder between the bridging strip 36 and the floor plate 29 and spot welded to this double thickness extension from the innerside of the box section sills. To still further strengthen the joinder between the cross members and the side sillsthe side walls of the cross member 38 are laterally flanged at their ends as indicated at 22 and 23, see Figs. 2 and 4, and these lateral flanges overlap the vertical web 30 of the floor panel forming the inner wall of the box section and are secured thereto by spot welding. Similarly, an extension of the bottom wall of the channel 38 is extended and spot welded to the lower wall 3| of this box section side sill.
In the region of the wheel housing the cross member 39 forms in similar manner a box section cross member with the floor plate 29 and is secured to the box section side sill extending through. this region in substantially the same manner as in the form shown in Figs. 2 and 4.
In the modification shown in Figs. 5 and 6, the floor plate 40 is extended straight out to the body side panel 42 except for a slight upward offset in the region of the side sills and is flanged upwardly at its margin at 4| and secured to the body side panel indicated in these figures by numeral 42 in identically the manner in which the bridging strip 36 is secured to the side panel, in the modification of Figs. 2 and 3. The outer panel 42 in this case forms the outer wall of the box section sill in the same manner as in the iormshown in Figs. 2 and 3, but the'inner wall of the box section and at least part of the bottom wall of the box section are in this case formed by a separate sill element 45 of outwardly facing' channel section, the top wall of the channel overlapping the floor plate 40 in the offset and being secured thereto by spot welding while the bottom wall of the channel is flanged downwardly at 46 and secured through this flange to the lower margin of the body side panel 42 in the same marmer as that indicated in Figs. 2 and 3. The cross members 41 and 48 are again secured to the floor plate and to the box section side sills in substantially the same manner as that shown in the earlier figures.
In the modification shown in Figs. 7 and 8 the construction is very similar to that shown in Figs. 5 and 6 except-that a Z member 49 has been substituted for the channel member 45 and the outer margin of the floor plate 50 is offset downwardly to'form a'shoulder against which the top of the Z member may seat, the top arm SI of the Z member being secured to the floor plate as shownand the bottom arm 52 being flanged in its margin at 53 and secured to the outer panel designated 54. in identical the manner shown in Figs. 5 and 6.
The cross members 55 and 56 shown respectively in Figs. 7 and 8 are secured to the side sills again in substantially the manner shown in Figs. 2 to 6. However, where the lateral flanges from the side walls as I! overlap the double thickness of th metal of the flange II and the floor plate 50, they'are downwardlyoiiset as at 58.
In both these latter forms shown in Figs. 5, 6, 7 and 8 the floor plate combines with the outer side wall panel just as it does in the form shown in Figs. 2' and 3 to form elements of the box section underframe structure. It will be noted that in all embodiments a third member cooperates with the floor plate and the side panel to form the complete box section framework.
All of the modifications described lend themselves very readily to manufacture out of light gauge metal, although in some cases the separate side sill elements 45 and heavier gauge than the floor plating and the side paneling if desired for greater strength, and in all of these constructions use is made of both the sidepaneling and the floor plating to form elements of the box section side sill and cross member structures respectively, and the parts are so formed as to facilitategtheir Joinder by simple spot welding operations. Other modifications of the invention may occur to those skilled in the art, and it is desired in the following claims to include such modifications withinthe purview thereof.
The specific construction of the side sills illustrated in Figures 2 and 3 forms the subject matter of applicants application Serial No. 519,422, Combined body and chassis structure, filed January 24, 1944, as a division of the present application.
What we claim is:
I. In a vehicle body, an upstanding side wall member, a floor panel, a longitudinal side sill member, a transverse sill member having one of its ends rigidly fastened to said side sill member, said side sill member being of hollow section form and having an open side .facing'outwardly in a direction'away from the longitudinal center 4 line of the body, saidtransverse sill member being likewise of hollow section form haying an open side facing upwardly, said open sides of said sill members being closedrespectively by a lower marginal portion of said side ,wallmember and said floor panel, the latter having, its longitudinal side margin additionally fastened to said side sill member.
2. In a vehicle body, an.underframe unit comprising longitudinal side sill members interconnected by transverse sill members, said side sill members being of outwardly facing channel form and at least one transverse sill member being of upwardly facing channel form, body sidewall structures having their lower marginal portions fastened to the upper'and lower margins of said side sill members as to form closed box sectional side sills, a body floor panel structure having its margins fastened to said side sill structures and being furthermore fastened along transverse lines to the upstanding walls of said channel formed transverse sill member as to form -a closed box sectional cross brace therewith.
3. In a combined chassis and body structure substantially entirely of sheet metal: a pair of transversely spaced longitudinal sheet metal side sill members extending over substantially the entire length of the structure including a threshand a wheel housing region; each of said sill members having an upstanding arm, a horizontal 49 may be made 01'.
arm along the upper margin and a horizontally outwardly directed arm along the lower margin of said upstanding arm, and a downwardly directed flange along the outer edge of said outwardly directed arm; a pair of body sheet metal side wall panels provided with threshold and wheel housing portions the lower margins of which overlap and are connected throughout their lengths to said flanges; a sheet metal floor panel extending longitudinally at least through the threshold and wheel housing regions and transversely from side wall panel to side wall panel; an upwardly directed flange along each longitudinal margin of said floor panel; said floor panel resting on and being secured to said horizontal arms along the upper margins of said sill members and overlapping and being secured to the interior of said side wall panels by means of its marginal flanges; said sill members, said side wall panels and said floor panel constituting together a combined body and a chassis frame structure having closed box sectional. side sills extending over the entire length of the body and their assembly being facilitated by the fact that said flanges connecting the sill members and the floor panel to the side wall panels extend outwardly from the box sections.
JOSEPH LEDWINKA. JOHN W. KELLY.
US265456A 1936-04-20 1939-04-01 Body and chassis underframe Expired - Lifetime US2357043A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEB3879A DE976324C (en) 1936-04-20 1937-02-17 Chassis and car body subframes for motor vehicles
GB11254/37A GB479716A (en) 1936-04-20 1937-04-20 Improvements in or relating to vehicle structures
US265456A US2357043A (en) 1936-04-20 1939-04-01 Body and chassis underframe
US519422A US2405260A (en) 1936-04-20 1944-01-24 Combined body and chassis structure

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US75375A US2188267A (en) 1936-04-20 1936-04-20 Combined body and chassis underframe
US75374A US2268291A (en) 1936-04-20 1936-04-20 Vehicle construction
US265456A US2357043A (en) 1936-04-20 1939-04-01 Body and chassis underframe

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US2357043A true US2357043A (en) 1944-08-29

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US265456A Expired - Lifetime US2357043A (en) 1936-04-20 1939-04-01 Body and chassis underframe
US519422A Expired - Lifetime US2405260A (en) 1936-04-20 1944-01-24 Combined body and chassis structure

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US519422A Expired - Lifetime US2405260A (en) 1936-04-20 1944-01-24 Combined body and chassis structure

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DE (1) DE976324C (en)
GB (1) GB479716A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696774A (en) * 1950-01-12 1954-12-14 Gen Motors Corp Automobile heating and ventilating system
US2827327A (en) * 1948-05-27 1958-03-18 Budd Co Self-supporting bodies for automobiles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964469C (en) * 1942-09-06 1957-05-23 Auto Union A G Self-supporting streamlined car body for motor vehicles
DE1008591B (en) * 1954-01-18 1957-05-16 Daimler Benz Ag Double wall for self-supporting structures of motor vehicles
US2926928A (en) * 1957-04-17 1960-03-01 Utility Trailer Mfg Company Unitary floor and frame structure for vehicles
US4014587A (en) * 1975-10-08 1977-03-29 The Budd Company Car platform structure
US5431475A (en) * 1993-11-03 1995-07-11 Travis Body & Trailer, Inc. Body for end dump trailer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1558435A (en) * 1920-07-17 1925-10-20 C R Wilson Body Company Metal body for vehicles
US1712547A (en) * 1926-05-21 1929-05-14 Studebaker Corp Body construction
FR723471A (en) * 1931-09-30 1932-04-09 Automobile car
GB430512A (en) * 1933-01-14 1935-06-20 Steel Wheel Corp Improvements in or relating to automobiles
FR767100A (en) * 1933-01-14 1934-07-09 Steel Wheel Corp Advanced automobile
US2111563A (en) * 1933-06-26 1938-03-22 Steel Wheel Corp Motor vehicle
USRE19975E (en) * 1933-11-10 1936-05-19 Vehicle
US2100561A (en) * 1934-04-04 1937-11-30 Steel Wheel Corp Vehicle
US2157649A (en) * 1934-05-31 1939-05-09 Budd Edward G Mfg Co Combined body and chassis construction
FR787258A (en) * 1934-06-15 1935-09-19 Peugeot Motor vehicle
GB442239A (en) * 1934-10-05 1936-02-05 Standard Pressed Steel Co Improvements in or relating to vehicles
FR792061A (en) * 1935-02-20 1935-12-21 Fiat Spa All-metal bodywork for automobiles
GB442917A (en) * 1935-04-08 1936-02-18 Morris Motors Ltd Improvements relating to motor vehicle underframes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827327A (en) * 1948-05-27 1958-03-18 Budd Co Self-supporting bodies for automobiles
US2696774A (en) * 1950-01-12 1954-12-14 Gen Motors Corp Automobile heating and ventilating system

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US2405260A (en) 1946-08-06
GB479716A (en) 1938-02-10
DE976324C (en) 1963-06-27

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