US20020047288A1 - Side impact beam - Google Patents
Side impact beam Download PDFInfo
- Publication number
- US20020047288A1 US20020047288A1 US09/770,364 US77036401A US2002047288A1 US 20020047288 A1 US20020047288 A1 US 20020047288A1 US 77036401 A US77036401 A US 77036401A US 2002047288 A1 US2002047288 A1 US 2002047288A1
- Authority
- US
- United States
- Prior art keywords
- hook
- section
- side impact
- hat
- impact beam
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
- B60J5/0437—Elongated type elements, e.g. beams, cables, belts or wires characterised by the attachment means to the door, e.g. releasable attachment means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
Definitions
- the invention relates to a side impact beam for integration into a vehicle door of a motor vehicle, wherein the side impact beam over at least the preponderant portion of its length has a profiled section with a hat-shaped cross-section comprising a stay and two leg portions, wherein the profiled section comprises a hook on an end section of the profiled section facing the door column, wherein the hook is angled toward the door column and engages an opening in the inner sheet metal of the vehicle door.
- Such a side impact beam is known from German patent document 296 22 985 U1.
- This side impact beam is provided at one end with a connecting tab that is bent upwardly from a planar end section.
- This connecting tab forms a hook and projects into one of the door columns of the vehicle body when the door is closed.
- the hook is designed to provide, in addition to the door lock connection of the vehicle door, a second positive-locking connection and to provide an additional safety feature in the case of a side impact.
- a weak point of this known design is, however, the planar end section which can buckle or break off upon side impact.
- the hook is not sufficiently bending resistant. The hook can therefore fulfill its function only to a limited extent. A desired higher lateral rigidity as well as safety is thus achieved only to a limited extent.
- the hook has a hat-shaped cross-section and is arranged at the end face of the end section which has a decreasing height.
- the hook has a hat-shaped cross-section and is arranged at the end face of the end section which decreases in its height.
- the hat-shaped cross-section extends from the middle section of the profiled section across the end section wherein the height of the end section, starting at the middle section, decreases toward the end face.
- the end section then has a transition into the hook, i.e., the end section and the hook form a unitary part.
- the side impact beam according to the invention is configured in an optimized fashion with regard to loading. It has a profile of continuous thickness from the center to the end without easily bendable areas.
- the side impact beam according to the invention can be used in front doors as well as rear doors.
- the hook engages accordingly either a cutout in the B column or in the C column of the vehicle body.
- the hook has a thickness that is increased relative to the remaining portion of the side impact beam. Accordingly, the general strength and flexural strength can be further increased in the connecting area. Preferably, the thickness of the sheet metal in the end section relative to the sheet metal of the remaining profiled section is greater by a factor 1.5.
- the reinforcement of the hook area can be realized by using a blank sheet metal which at one end has a sheet metal portion which is thicker in comparison to the remaining sheet metal area.
- sheet metals are also referred to in the art as tailored blanks.
- the hook is provided with a plastic cap. This measure also improves the visual appearance.
- the side impact beam according to the invention is formed of super high strength sheet metal that is cold and hot formable. Moreover, it is provided with a surface protection, for example, by hot galvanizing or electro-galvanizing.
- FIG. 1 shows the side impact beam according to the invention in a perspective illustration
- FIG. 7 is a section view along the line S-S of the illustration according to FIG. 6.
- FIG. 4 shows a detail of a motor vehicle door 1 for a motor vehicle.
- the outer skin 2 of the vehicle door 1 is curved slightly outwardly in the longitudinal direction of the vehicle.
- the door column 3 (B column) belonging to the vehicle frame and the inner sheet metal 4 of the door are also illustrated in a technically simplified illustration.
- a side impact beam 5 is integrated in the vehicle door 1 (see also FIGS. 1 through 3).
- the side impact beam 5 has a beam member comprised of sheet metal and is designed to stiffen the vehicle door 1 against side impact and to absorb energy.
- FIG. 1 shows clearly that the side impact beam 5 has along its longitudinal middle section L a hat-shaped profiled section 6 comprised of the stay 7 and two lateral leg portions 8 connected to opposite longitudinal edges of the stay 7 .
- End sections 9 , 10 adjoin the profiled middle section 6 as unitary parts.
- the end sections also have a hat-shaped cross-section, and the height H of the end sections 9 , 10 decreases from the longitudinal middle section L to the end faces 11 , 12 of the side impact beam 5 .
- a hook 13 angled toward the door column 3 is provided at the end face 11 of the end section 9 facing the door column 3 .
- the free end 14 of the hook 13 is guided through an opening 15 in the inner sheet metal 4 of the vehicle door 1 .
- the hook 13 engages an engagement pocket 16 of the door column 3 when the door is closed.
- the reference numeral 17 indicates a plastic cap which covers the free end 14 of the hook 13 projecting past the inner sheet metal 4 of the door.
- the plastic cap 17 is supported at the inner side of the vehicle door 1 with radial legs 18 on the inner sheet metal 4 of the door.
- the section view illustration of FIG. 2 shows that the hook 13 has also a hat-shaped cross-section with stay 7 ′ and two leg portions 8 ′.
- the profile height H 1 of the hook 13 is at least 15 mm. This ensures a high flexural strength.
- Flanges 19 are connected to the longitudinal edges of the leg portions 8 of the profiled section 6 . They extend transversely to the leg portions 8 and, along the end section 9 , the flanges 19 extend up to the hook 13 . At the end face 11 the flanges 19 have wide flange end portions 20 . By means of these wide flange end portions 20 , the side impact beams 5 are secured on the door structure. The connecting locations for spot welding are indicated in FIG. 3 with reference numeral 21 . On the leg portions 8 ′ of the hook 13 , transversely extending flanges 19 ′ are provided. Also, the oppositely positioned end section 10 of the side impact beam 5 comprises flanges 19 which project transversely from the leg portions 8 . A flange 22 is also provided at the end face 12 .
- FIG. 5 shows a side impact beam 23 with a reinforcement portion (indicated by hatching) in the area of the hook 24 .
- the reinforcement portion is produced by using a tailored blank.
- the thickness of the sheet metal in the end section 25 is reinforced with regard to its thickness in comparison to the remaining profiled section 6 ′ by using a correspondingly tailored sheet metal.
- the end portion 25 has a thickness D which is 1.5 times greater than the thickness of the sheet metal in the profiled middle section.
- the end section 27 is of a double-layer construction (indicated by hatching).
- the sheet metal blank in the area of the end section 27 is folded, as clearly shown, in particular, in the sectional view S-S according to FIG. 7.
- the hook 28 is reinforced with regard to its thickness D in comparison to the remaining profiled section.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
- 1. Field of the Invention
- The invention relates to a side impact beam for integration into a vehicle door of a motor vehicle, wherein the side impact beam over at least the preponderant portion of its length has a profiled section with a hat-shaped cross-section comprising a stay and two leg portions, wherein the profiled section comprises a hook on an end section of the profiled section facing the door column, wherein the hook is angled toward the door column and engages an opening in the inner sheet metal of the vehicle door.
- 2. Description of the Related Art
- Such a side impact beam is known from German patent document 296 22 985 U1. This side impact beam is provided at one end with a connecting tab that is bent upwardly from a planar end section. This connecting tab forms a hook and projects into one of the door columns of the vehicle body when the door is closed. The hook is designed to provide, in addition to the door lock connection of the vehicle door, a second positive-locking connection and to provide an additional safety feature in the case of a side impact. A weak point of this known design is, however, the planar end section which can buckle or break off upon side impact. Also, the hook is not sufficiently bending resistant. The hook can therefore fulfill its function only to a limited extent. A desired higher lateral rigidity as well as safety is thus achieved only to a limited extent.
- It is an object of the present invention to provide a side impact beam which is improved with regard to its function and which ensures a more stable connection to the door column in a load situation.
- In accordance with the present invention, this is achieved in that the hook has a hat-shaped cross-section and is arranged at the end face of the end section which has a decreasing height.
- Accordingly, the hook has a hat-shaped cross-section and is arranged at the end face of the end section which decreases in its height. The hat-shaped cross-section extends from the middle section of the profiled section across the end section wherein the height of the end section, starting at the middle section, decreases toward the end face. The end section then has a transition into the hook, i.e., the end section and the hook form a unitary part.
- The side impact beam according to the invention is configured in an optimized fashion with regard to loading. It has a profile of continuous thickness from the center to the end without easily bendable areas.
- When the door is closed, the hook provides a stable second positive-locking connection to the door column. An increased lateral rigidity and thus an increased energy absorption in the case of a side impact are thus ensured.
- The side impact beam according to the invention can be used in front doors as well as rear doors. The hook engages accordingly either a cutout in the B column or in the C column of the vehicle body.
- According to a further embodiment of the invention, the hook has a thickness that is increased relative to the remaining portion of the side impact beam. Accordingly, the general strength and flexural strength can be further increased in the connecting area. Preferably, the thickness of the sheet metal in the end section relative to the sheet metal of the remaining profiled section is greater by a factor 1.5.
- The reinforcement of the hook area can be realized by using a blank sheet metal which at one end has a sheet metal portion which is thicker in comparison to the remaining sheet metal area. Such sheet metals are also referred to in the art as tailored blanks.
- Possible is also the use of so-called patchwork blanks in which at the hook-side end at least one further sheet metal is connected in a sandwich construction. The hook is then of a double layer construction. The double layer construction is realized preferably by folding the sheet metal in the area of the end section. This is advantageous with regard to manufacturing technological considerations.
- According to a further preferred embodiment, transversely projecting flanges are provided on the leg portions of the profiled section. This feature also enhances the flexural strength of the side impact beam and the denting resistance of the door in an advantageous manner. The flanges extend along the end sections up to the hook. They widen along the end sections at least over portions thereof. This configuration makes possible a stable securing of the side impact beam on the inner sheet metal of the door, preferably by spot welding. Moreover, by widening the flanges the strength of the end section at the hook is increased. In a preferred embodiment, the hook also has lateral flanges.
- For reasons of corrosion protection and of safety, the hook is provided with a plastic cap. This measure also improves the visual appearance.
- The side impact beam according to the invention is formed of super high strength sheet metal that is cold and hot formable. Moreover, it is provided with a surface protection, for example, by hot galvanizing or electro-galvanizing.
- In the drawing:
- FIG. 1 shows the side impact beam according to the invention in a perspective illustration;
- FIG. 2 shows a section view along the line A-A of the hook of the side impact beam according to the invention;
- FIG. 3 shows a detail view of the end section provided with the hook;
- FIG. 4 shows schematically in a horizontal longitudinal section the mounted position of the side impact beam according to the invention in a vehicle door;
- FIG. 5 shows the end section of a side impact beam according to the invention manufactured of a tailored blank;
- FIG. 6 shows the end section of a side impact beam produced by folding;
- FIG. 7 is a section view along the line S-S of the illustration according to FIG. 6.
- FIG. 4 shows a detail of a motor vehicle door1 for a motor vehicle. The
outer skin 2 of the vehicle door 1 is curved slightly outwardly in the longitudinal direction of the vehicle. The door column 3 (B column) belonging to the vehicle frame and the inner sheet metal 4 of the door are also illustrated in a technically simplified illustration. - Between the
outer skin 2 and the inner sheet metal 4 of the door, aside impact beam 5 is integrated in the vehicle door 1 (see also FIGS. 1 through 3). Theside impact beam 5 has a beam member comprised of sheet metal and is designed to stiffen the vehicle door 1 against side impact and to absorb energy. - FIG. 1 shows clearly that the
side impact beam 5 has along its longitudinal middle section L a hat-shaped profiledsection 6 comprised of thestay 7 and twolateral leg portions 8 connected to opposite longitudinal edges of thestay 7.End sections middle section 6 as unitary parts. The end sections also have a hat-shaped cross-section, and the height H of theend sections side impact beam 5. - At the
end face 11 of theend section 9 facing the door column ahook 13 angled toward thedoor column 3 is provided. Thefree end 14 of thehook 13 is guided through anopening 15 in the inner sheet metal 4 of the vehicle door 1. As illustrated in FIG. 4, thehook 13 engages anengagement pocket 16 of thedoor column 3 when the door is closed. Thereference numeral 17 indicates a plastic cap which covers thefree end 14 of thehook 13 projecting past the inner sheet metal 4 of the door. Theplastic cap 17 is supported at the inner side of the vehicle door 1 withradial legs 18 on the inner sheet metal 4 of the door. - The section view illustration of FIG. 2 shows that the
hook 13 has also a hat-shaped cross-section withstay 7′ and twoleg portions 8′. Preferably, the profile height H1 of thehook 13 is at least 15 mm. This ensures a high flexural strength. -
Flanges 19 are connected to the longitudinal edges of theleg portions 8 of the profiledsection 6. They extend transversely to theleg portions 8 and, along theend section 9, theflanges 19 extend up to thehook 13. At theend face 11 theflanges 19 have wideflange end portions 20. By means of these wideflange end portions 20, the side impact beams 5 are secured on the door structure. The connecting locations for spot welding are indicated in FIG. 3 withreference numeral 21. On theleg portions 8′ of thehook 13, transversely extendingflanges 19′ are provided. Also, the oppositely positionedend section 10 of theside impact beam 5 comprisesflanges 19 which project transversely from theleg portions 8. Aflange 22 is also provided at theend face 12. - The embodiment illustrated in FIG. 5 shows a
side impact beam 23 with a reinforcement portion (indicated by hatching) in the area of thehook 24. The reinforcement portion is produced by using a tailored blank. - In this embodiment, the thickness of the sheet metal in the
end section 25, including thehook 24, is reinforced with regard to its thickness in comparison to the remaining profiledsection 6′ by using a correspondingly tailored sheet metal. Theend portion 25 has a thickness D which is 1.5 times greater than the thickness of the sheet metal in the profiled middle section. - In the embodiment of the
side impact beam 26 according to FIGS. 6 and 7, theend section 27, including thehook 28, is of a double-layer construction (indicated by hatching). For this purpose, the sheet metal blank in the area of theend section 27 is folded, as clearly shown, in particular, in the sectional view S-S according to FIG. 7. Thus, thehook 28 is reinforced with regard to its thickness D in comparison to the remaining profiled section. - Otherwise, the side impact beams23 or 26 correspond to the configuration explained above.
- While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
Claims (5)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00122777A EP1199224B1 (en) | 2000-10-19 | 2000-10-19 | Bumper assembly |
EP00122777.6 | 2000-10-19 | ||
EP00123024A EP1201474B1 (en) | 2000-10-24 | 2000-10-24 | Side intrusion beam |
EP00123024 | 2000-10-24 | ||
EP00123024.2 | 2000-10-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020047288A1 true US20020047288A1 (en) | 2002-04-25 |
US6398289B1 US6398289B1 (en) | 2002-06-04 |
Family
ID=26071522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/770,364 Expired - Fee Related US6398289B1 (en) | 2000-10-19 | 2001-01-25 | Side impact beam |
Country Status (1)
Country | Link |
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US (1) | US6398289B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1475261A2 (en) * | 2003-05-09 | 2004-11-10 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Side impact protection device and vehicle door with such a device |
EP1803596A2 (en) | 2005-12-27 | 2007-07-04 | Honda Motor Co., Ltd | Press-molded door beam of vehicle, having longitudinal groove part protruding from beam end |
FR2916688A3 (en) * | 2007-06-04 | 2008-12-05 | Renault Sas | Reinforcement element for lateral front door of motor vehicle, has rear tongue forming angle lower than specific degree with plane passing by section of hollow profile, where element is realized in single piece from metallic sheet |
AU2008308205B2 (en) * | 2007-10-02 | 2012-03-01 | Toyota Shatai Kabushiki Kaisha | Automobile body structure |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1186453B1 (en) * | 2000-08-19 | 2003-01-08 | Benteler Ag | Side intrusion beam |
DE10120935A1 (en) * | 2001-04-27 | 2002-10-31 | Benteler Automobiltechnik Gmbh | Side impact beam and vehicle door |
DE10128198C2 (en) * | 2001-06-11 | 2003-12-24 | Benteler Automobiltechnik Gmbh | Side impact beam for a motor vehicle and blank as a semi-finished product for a side impact beam |
FR2846924B1 (en) * | 2002-11-12 | 2006-12-15 | Arvinmeritor Light Vehicle Sys | ANTI-INTRUSION ASSEMBLY |
US6679540B1 (en) * | 2003-03-07 | 2004-01-20 | Trim Trends Co., Llc | Epoxy bonded laminate door beam |
BRMU8400198Y1 (en) * | 2004-03-16 | 2014-09-09 | Nilko Metalurgia Ltda | IMPROVEMENTS INTRODUCED IN CABINET FOR TELECOMMUNICATION EQUIPMENT |
JP2023141370A (en) * | 2022-03-23 | 2023-10-05 | 本田技研工業株式会社 | Catcher structure of door beam |
Family Cites Families (15)
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US3887227A (en) * | 1968-11-02 | 1975-06-03 | Daimler Benz Ag | Installation for the protection of motor vehicle bodies against lateral impacts |
JPS6020208B2 (en) * | 1979-10-03 | 1985-05-21 | 日産自動車株式会社 | Reinforcement structure for automobile doors |
US4328642A (en) * | 1980-06-09 | 1982-05-11 | The Budd Company | Plastic door for an automobile |
JPS621626A (en) * | 1985-06-27 | 1987-01-07 | Nissan Motor Co Ltd | Reinforcing structure for automobile door |
US4800638A (en) * | 1987-08-25 | 1989-01-31 | The Budd Company | Method of mounting an outer skin to an inner panel of a vehicle door |
JPH0538992A (en) * | 1991-08-06 | 1993-02-19 | Hirata:Kk | Automotive door guard beam and manufacture thereof |
SE501812C2 (en) * | 1992-09-25 | 1995-05-22 | Plannja Hardtech Ab | Safety bar in vehicle |
FR2698322B1 (en) * | 1992-11-24 | 1994-12-23 | Renault | Motor vehicle door with protective reinforcement. |
EP0685355A1 (en) * | 1994-05-30 | 1995-12-06 | Schade Kg | Impact beam |
US5536060A (en) * | 1995-02-17 | 1996-07-16 | General Motors Corporation | Reinforced vehicle door |
SE9601246L (en) * | 1996-04-01 | 1997-10-02 | Plannja Hardtech Ab | Safety Beam |
DE29622985U1 (en) | 1996-12-24 | 1997-10-02 | Thyssen Industrie Ag, 45128 Essen | Side impact protection for car doors |
DE19654376B4 (en) * | 1996-12-24 | 2005-08-04 | Thyssen Krupp Automotive Gmbh | Side impact beams for vehicle doors |
DE19748970B4 (en) * | 1997-11-06 | 2005-12-08 | Ford Global Technologies, LLC (n.d.Ges.d. Staates Delaware), Dearborn | Integral door interior reinforcement |
US6176542B1 (en) * | 1999-09-30 | 2001-01-23 | Delphi Technologies, Inc. | Vehicle door |
-
2001
- 2001-01-25 US US09/770,364 patent/US6398289B1/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1475261A2 (en) * | 2003-05-09 | 2004-11-10 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Side impact protection device and vehicle door with such a device |
EP1475261A3 (en) * | 2003-05-09 | 2007-01-03 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Side impact protection device and vehicle door with such a device |
EP1803596A2 (en) | 2005-12-27 | 2007-07-04 | Honda Motor Co., Ltd | Press-molded door beam of vehicle, having longitudinal groove part protruding from beam end |
EP1803596A3 (en) * | 2005-12-27 | 2009-01-14 | Honda Motor Co., Ltd | Press-molded door beam of vehicle, having longitudinal groove part protruding from beam end |
FR2916688A3 (en) * | 2007-06-04 | 2008-12-05 | Renault Sas | Reinforcement element for lateral front door of motor vehicle, has rear tongue forming angle lower than specific degree with plane passing by section of hollow profile, where element is realized in single piece from metallic sheet |
AU2008308205B2 (en) * | 2007-10-02 | 2012-03-01 | Toyota Shatai Kabushiki Kaisha | Automobile body structure |
Also Published As
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