US20060016149A1 - Frame structure for motor vehicle superstructures - Google Patents
Frame structure for motor vehicle superstructures Download PDFInfo
- Publication number
- US20060016149A1 US20060016149A1 US11/181,828 US18182805A US2006016149A1 US 20060016149 A1 US20060016149 A1 US 20060016149A1 US 18182805 A US18182805 A US 18182805A US 2006016149 A1 US2006016149 A1 US 2006016149A1
- Authority
- US
- United States
- Prior art keywords
- frame structure
- joint
- beams
- connecting curve
- along
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
- B62D23/005—Combined superstructure and frame, i.e. monocoque constructions with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like
Definitions
- the present invention relates to a frame structure for a motor vehicle superstructure including first and second beams which are conjoined to form a “T” and a joint present between the beams, and in which the first beam and the second beam are made of tubes with elliptical cross sections having secondary axes which run parallel to one another,
- a frame structure of the type mentioned above known from European document EP 0631 924 A1, includes two extruded beams which are conjoined to form a “T.”
- the beams are realized as hollow tubes.
- a type of joint is crafted on one of the two beams, and a free end of the joint exhibits retainers for the other beam. The latter beam receives the free end of the joint.
- German document DE 195 19 779 A1 relates to a side portion of the frame of a passenger car chassis, which comprises two openings for doors bordered by a vertical beam.
- a median column Running between the upper side rail and the lower side rail is a median column, which is connected to the side rail through a joint of the type described above.
- One object of this invention is to develop a frame structure for a motor vehicle superstructure in which the beams conjoined to form a “T” and a connecting joint are designed to give the frame structure optimal weight and stiffness.
- this object can be achieved by having the joint realized as a cross section expansion emanating from the first beam, while the joint, when viewed lengthwise along the second beam, has a defined length from an outermost edge of the first beam spanning toward the second beam. Further features and embodiments are defined by the claims.
- Advantages obtained primarily through the invention include optimal weight and stiffness resulting from elliptical cross sections of the first and second beams as well as superior placement of the joint in relation to those of similarly designed frame structures.
- the lateral edge of the joint is a concave continuous line, which contributes to tension reduction.
- the general shape of the joint can be observed in the way it opens tangentially into the second beam and forms a sharp angle where it intersects the first beam at its section of maximum diameter.
- the cross section expansion is shaped through internal high pressure forming and if the cross section expansion and the joint are bulged from the same piece as the second beam.
- FIG. 1 is an oblique schematic view of a frame structure according to the invention.
- FIG. 2 shows various frame structures so as to provide a weight comparison.
- a frame structure 1 is designed for the superstructure of a motor vehicle (both of which are not illustrated), namely the base, side wall, etc., of the superstructure.
- the frame structure 1 includes two beams, namely a first beam 2 and a second beam 3 , which conjoin to form a “T.”
- the beams 2 and 3 are attached to one another through the interposition of a joint 4 and are constructed of tubes made from extruded steel, light metal, etc.
- the tubes also exhibit an elliptical cross section with main axes HaI and HaII and secondary axes NaI and NaII, maximum diameters DmgI and DmgII, and minimum diameters DmkI and DmkII.
- the secondary axes NaI and NaII—as well as the main axes HaI and Hall—of the first and second beams 2 and 3 run parallel to one another.
- the joint 4 is shown as an internal high pressure formed cross section expansion of the second beam 3 and is bulged from the same piece as the second beam 3 .
- the joint 4 is symmetrically bisected by a median plane MII running through the second beam 3 , which runs vertically to a median plane MI of the first beam 2 .
- the median planes MII and MI can also intersect one another at angles between 45° and 90°.
- B % is equal to the maximum expansion
- B is equal to the maximum diameter DmgII, of the second beam 3 .
- a lateral edge Bs of the joint is realized as a concave continuous line 6 , which opens tangentially into the second beam 3 and forms a sharp angle ⁇ with an edge BDmgI of the first beam 2 .
- This angle a is preferably between 30° and 42°.
- the joint 4 of the second beam 3 has a connecting curve 7 turned toward the first beam 2 , which overlaps certain portions of the first beam 2 .
- a joint 4 is connected to the first beam 2 along the connecting curve 7 through welding, adhesives, etc.
- FIG. 2 In addition to the frame structure having the first beam 2 and the second beam 3 conjoined at a joint 4 , different frame structures 8 and 9 are shown in FIG. 2 .
- the frame structure 8 consists of a first beam 10 and a second beam 11 .
- the frame structure 9 consists of a first beam 12 and a second beam 13 as well.
- the second beams 11 and 13 found in frame structures 7 and 8 are joined, without the interposition of a joint, to respective first beams 10 and 12 .
- the beams found in frame structure 1 are approximately the same dimensions of those in frame structures 8 and 9 .
- the frame structure 9 With square tubing, the frame structure 9 is approximately 36% heavier than frame structure 8 , which is made of elliptical tubing.
- Frame structure 8 in turn is 13% heavier than frame structure 1 . Owing to the specifics of its design, the stiffness of frame structure 1 is higher than those of frame structures 7 and 8 .
Abstract
A frame structure suited for motor vehicle superstructures includes first and second beams conjoined to form a “T” and a joint which is present between the two beams. To ensure that this frame structure is of optimal weight and stiffness, the first and second beams of the frame structure are made of tubes with elliptical cross sections having secondary axes which run parallel to one another. A joint is present at the second beam and is realized as an expansion of the diameter of the first beam. When viewed lengthwise along the second beam, the joint has a defined length from the outermost edge of the first beam spanning toward the second beam.
Description
- This application claims the priority of
German application 10 2004 036 071.5, filed Jul. 24, 2004, the disclosure of which is expressly incorporated by reference herein. - The present invention relates to a frame structure for a motor vehicle superstructure including first and second beams which are conjoined to form a “T” and a joint present between the beams, and in which the first beam and the second beam are made of tubes with elliptical cross sections having secondary axes which run parallel to one another,
- A frame structure of the type mentioned above, known from European document EP 0631 924 A1, includes two extruded beams which are conjoined to form a “T.” The beams are realized as hollow tubes. A type of joint is crafted on one of the two beams, and a free end of the joint exhibits retainers for the other beam. The latter beam receives the free end of the joint.
- German document DE 195 19 779 A1 relates to a side portion of the frame of a passenger car chassis, which comprises two openings for doors bordered by a vertical beam. Running between the upper side rail and the lower side rail is a median column, which is connected to the side rail through a joint of the type described above.
- One object of this invention is to develop a frame structure for a motor vehicle superstructure in which the beams conjoined to form a “T” and a connecting joint are designed to give the frame structure optimal weight and stiffness.
- According to the invention, this object can be achieved by having the joint realized as a cross section expansion emanating from the first beam, while the joint, when viewed lengthwise along the second beam, has a defined length from an outermost edge of the first beam spanning toward the second beam. Further features and embodiments are defined by the claims.
- Advantages obtained primarily through the invention include optimal weight and stiffness resulting from elliptical cross sections of the first and second beams as well as superior placement of the joint in relation to those of similarly designed frame structures. The joint length is a critical characteristic, and is based on the claimed equation:
L=(1.50 to 1.70)×{overscore (AC)}
Correspondingly, the same is true for AC, which is defined by the following equation: - The lateral edge of the joint is a concave continuous line, which contributes to tension reduction. The general shape of the joint can be observed in the way it opens tangentially into the second beam and forms a sharp angle where it intersects the first beam at its section of maximum diameter. Finally, it is advantageous if the cross section expansion is shaped through internal high pressure forming and if the cross section expansion and the joint are bulged from the same piece as the second beam.
- An embodiment of the invention is shown in the drawings and is described in further detail below.
-
FIG. 1 is an oblique schematic view of a frame structure according to the invention, and -
FIG. 2 shows various frame structures so as to provide a weight comparison. - A frame structure 1 is designed for the superstructure of a motor vehicle (both of which are not illustrated), namely the base, side wall, etc., of the superstructure. The frame structure 1 includes two beams, namely a
first beam 2 and asecond beam 3, which conjoin to form a “T.” Thebeams second beams - The joint 4 is shown as an internal high pressure formed cross section expansion of the
second beam 3 and is bulged from the same piece as thesecond beam 3. The joint 4 is symmetrically bisected by a median plane MII running through thesecond beam 3, which runs vertically to a median plane MI of thefirst beam 2. The median planes MII and MI can also intersect one another at angles between 45° and 90°. A length L of the joint 4, which begins at an edge Bae of thefirst beam 2 and runs parallel to the median plane MII of thesecond beam 3, is defined by the following equation:
L=(1.50 to 1.70)×{overscore (AC)} - The optimal value for this equation is used below.
L=(1.61)×{overscore (AC)}
In this equation, AC is the length running from the outer origin A of the joint 4 to the location C where the joint meets the maximum diameter DMgII of thesecond beam 3. - The length of AC is defined by the following equation:
In this equation, B % is equal to the maximum expansion, and B is equal to the maximum diameter DmgII, of thesecond beam 3. - A lateral edge Bs of the joint is realized as a concave continuous line 6, which opens tangentially into the
second beam 3 and forms a sharp angle α with an edge BDmgI of thefirst beam 2. This angle a is preferably between 30° and 42°. Furthermore, the joint 4 of thesecond beam 3 has a connectingcurve 7 turned toward thefirst beam 2, which overlaps certain portions of thefirst beam 2. A joint 4 is connected to thefirst beam 2 along the connectingcurve 7 through welding, adhesives, etc. - In addition to the frame structure having the
first beam 2 and thesecond beam 3 conjoined at a joint 4,different frame structures 8 and 9 are shown inFIG. 2 . Theframe structure 8 consists of afirst beam 10 and asecond beam 11. The frame structure 9 consists of afirst beam 12 and asecond beam 13 as well. Thesecond beams frame structures first beams frame structures 8 and 9. With square tubing, the frame structure 9 is approximately 36% heavier thanframe structure 8, which is made of elliptical tubing.Frame structure 8 in turn is 13% heavier than frame structure 1. Owing to the specifics of its design, the stiffness of frame structure 1 is higher than those offrame structures - The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.
Claims (20)
1. A frame structure for a motor vehicle superstructure comprising:
first and second beams which are conjoined to form a “T,” and
a joint present between the beams,
wherein the first beam and the second beam are made of tubes with elliptical cross sections having secondary axes which run parallel to one another,
wherein the joint is realized as a cross section expansion emanating from the first beam, and
wherein the joint, when viewed lengthwise along the second beam, has a defined length from an outermost edge of the first beam spanning toward the second beam.
2. The frame structure as claimed in claim 1 , wherein the length of the joint is defined by:
L=(1.50 to 1.70)×{overscore (AC)}
wherein L is the length of the joint and ac is a distance from an outside origin of the joint to its junction with an area of a maximum diameter of the second beam.
3. The frame structure as claimed in claim 2 , wherein said distance is defined by:
wherein B % is equal to a maximum expansion of the joint and B is equal to the maximum diameter of the second beam.
4. The frame structure as claimed in claim 1 , wherein, when viewed from above the beam, a lateral edge of the joint defines a concave, continuous line.
5. The frame structure as claimed in claim 4 , wherein the continuous line both opens tangentially into the second beam and forms a sharp angle with respect to the outermost edge of the first beam where it is of maximum diameter.
6. The frame structure as claimed in claim 5 , wherein the sharp angle is between approximately 30° and approximately 42°.
7. The frame structure as claimed in claim 1 , wherein the cross section expansion is bulged through an internal high pressure forming process.
8. The frame structure as claimed in claim 7 , wherein the cross section expansion is bulged from the same piece as the second beam.
9. The frame structure as claimed in claim 1 , wherein the joint is connected to the first beam along a connecting curve.
10. The frame structure as claimed in claim 1 , wherein the beams are metal beams.
11. The frame structure as claimed in claim 2 , wherein, when viewed from above the beam, a lateral edge of the joint defines a concave, continuous line.
12. The frame structure as claimed in claim 11 , wherein the continuous line both opens tangentially into the second beam and forms a sharp angle with respect to the outermost edge of the first beam where it is of maximum diameter.
13. The frame structure as claimed in claim 2 , wherein the joint is connected to the first beam along a connecting curve.
14. The frame structure as claimed in claim 3 , wherein the joint is connected to the first beam along a connecting curve.
15. The frame structure as claimed in claim 4 , wherein the joint is connected to the first beam along a connecting curve.
16. The frame structure as claimed in claim 5 , wherein the joint is connected to the first beam along a connecting curve.
17. The frame structure as claimed in claim 6 , wherein the joint is connected to the first beam along a connecting curve.
18. The frame structure as claimed in claim 7 , wherein the joint is connected to the first beam along a connecting curve.
19. The frame structure as claimed in claim 8 , wherein the joint is connected to the first beam along a connecting curve.
20. The frame structure as claimed in claim 10 , wherein the joint is connected to the first beam along a connecting curve.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004036071.5 | 2004-07-24 | ||
DE102004036071A DE102004036071A1 (en) | 2004-07-24 | 2004-07-24 | Frame structure for bodies of motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060016149A1 true US20060016149A1 (en) | 2006-01-26 |
Family
ID=35134741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/181,828 Abandoned US20060016149A1 (en) | 2004-07-24 | 2005-07-15 | Frame structure for motor vehicle superstructures |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060016149A1 (en) |
EP (1) | EP1619107B1 (en) |
DE (2) | DE102004036071A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105636534A (en) * | 2013-08-29 | 2016-06-01 | 乔伊马克斯有限责任公司 | Device for the sclerotherapy of tissue |
WO2021005220A1 (en) * | 2019-07-11 | 2021-01-14 | Volkswagen Ag | Method for producing an assembly |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008016381B4 (en) * | 2008-03-29 | 2015-01-08 | Daimler Ag | Flow-optimized cross member |
CN108248690B (en) * | 2018-01-24 | 2020-10-27 | 徐州重型机械有限公司 | Wheeled crane frame and wheeled crane |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3269880B2 (en) | 1993-07-02 | 2002-04-02 | 本田技研工業株式会社 | Method of manufacturing frame constituent member |
IT1268071B1 (en) | 1994-06-06 | 1997-02-20 | Fiat Auto Spa | SIDE FRAME OF MOTOR VEHICLE BODYWORK, PARTICULARLY MOTOR CARS AND PROCEDURE FOR ITS CONSTRUCTION. |
DE19935654B4 (en) * | 1999-07-29 | 2009-01-02 | Behr Gmbh & Co. Kg | Cross member for a motor vehicle |
DE19946558B4 (en) * | 1999-09-29 | 2016-10-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Support structure for bodies of motor vehicles |
DE10139268A1 (en) * | 2001-08-09 | 2003-02-20 | Porsche Ag | Support structure for vehicle body has hollow profiled support with inner longitudinal web and curvature so that web can be stretched at connecting end through end expansion of profiled support |
-
2004
- 2004-07-24 DE DE102004036071A patent/DE102004036071A1/en not_active Withdrawn
-
2005
- 2005-04-06 DE DE502005007689T patent/DE502005007689D1/en active Active
- 2005-04-06 EP EP05007500A patent/EP1619107B1/en not_active Not-in-force
- 2005-07-15 US US11/181,828 patent/US20060016149A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105636534A (en) * | 2013-08-29 | 2016-06-01 | 乔伊马克斯有限责任公司 | Device for the sclerotherapy of tissue |
WO2021005220A1 (en) * | 2019-07-11 | 2021-01-14 | Volkswagen Ag | Method for producing an assembly |
Also Published As
Publication number | Publication date |
---|---|
EP1619107A2 (en) | 2006-01-25 |
DE502005007689D1 (en) | 2009-08-27 |
DE102004036071A1 (en) | 2006-02-16 |
EP1619107B1 (en) | 2009-07-15 |
EP1619107A3 (en) | 2006-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6733040B1 (en) | Closed channel structural member having internal reinforcement for vehicle body and frame assembly | |
JP3310981B2 (en) | End members of stringers for vehicles | |
JPH04221275A (en) | Supporter | |
US20020069609A1 (en) | Roll-formed and stamped doorbeam | |
US20040130166A1 (en) | Profile for an automobile structural element and corresponding chassis | |
JPS58152673A (en) | Front vehicle body construction of automobile | |
JPH10181490A (en) | Energy absorbing structure in upper part of vehicle body | |
US20050110302A1 (en) | Integrated steel cross-car beam | |
US20060016149A1 (en) | Frame structure for motor vehicle superstructures | |
JP2005035500A (en) | Strength member structure for automobile | |
US10745053B2 (en) | Vehicle body upper section structure | |
US6896314B2 (en) | Low-profile high-strength vehicle door beam | |
US20100320782A1 (en) | Energy absorption device | |
JP4308536B2 (en) | Auto body structure | |
US6616219B2 (en) | Energy absorbing deformation element | |
US6619663B2 (en) | Body structure for a motor vehicle having forward spring strut receiving devices and method of making same | |
EP1234751A3 (en) | Front structure for a motor vehicle | |
WO2019091407A1 (en) | B-pillar mounting device and vehicle | |
JP4163925B2 (en) | Vehicle structure | |
JPH10218017A (en) | Reinforcing structure for center pillar | |
JP2008189273A (en) | Front underrun protector | |
JP2008285094A (en) | Body structure for railroad vehicle | |
CN113752797A (en) | Automobile roof pressure additional strengthening and car | |
CN106585728B (en) | Top beam structure at joint of B column of automobile | |
CN210284365U (en) | Frame cross beam and frame |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DR.ING.H.C.F.PORSCHE AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VLAHOVIC, JOSIP;REEL/FRAME:016782/0689 Effective date: 20050701 |
|
AS | Assignment |
Owner name: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT (COMPAN Free format text: MERGER;ASSIGNOR:DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT;REEL/FRAME:021184/0926 Effective date: 20070427 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |