WO1999017947A1 - Protective bar for vehicle door - Google Patents

Protective bar for vehicle door Download PDF

Info

Publication number
WO1999017947A1
WO1999017947A1 PCT/US1998/020668 US9820668W WO9917947A1 WO 1999017947 A1 WO1999017947 A1 WO 1999017947A1 US 9820668 W US9820668 W US 9820668W WO 9917947 A1 WO9917947 A1 WO 9917947A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective bar
flange
protective
bonding
bar
Prior art date
Application number
PCT/US1998/020668
Other languages
French (fr)
Inventor
Robert C. Bradtke
Original Assignee
Pullman Industries, Inc.
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
Application filed by Pullman Industries, Inc. filed Critical Pullman Industries, Inc.
Priority to CA002305343A priority Critical patent/CA2305343A1/en
Priority to AU10647/99A priority patent/AU1064799A/en
Publication of WO1999017947A1 publication Critical patent/WO1999017947A1/en

Links

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
    • 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
    • B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
    • B60J5/0443—Beams
    • B60J5/0444—Beams characterised by a special cross section
    • 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
    • B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
    • B60J5/0443—Beams
    • B60J5/0447—Beams formed of several elements arranged in parallel

Definitions

  • the present invention relates generally to protective bars for vehicles and more specifically to a roll formed martensitic steel protective bar with flanges bonded to the protective bar using structural adhesive.
  • Protective bars for vehicles are generally known and are necessary for protecting vehicle occupants during a crash.
  • a protective bar for a vehicle must have sufficient strength to adequately protect the passengers of the vehicle during the crash.
  • a typical protective bar consists of a tubular bar positioned from front to rear in a vehicle door. Brackets for interconnecting the bar and the door are typically welded to the ends of the tubular bar. Many prior art tubular steel protective bars suffer from the limitation that they are heavy and it is difficult to control the yield or failure point of the bar.
  • U.S. Patent No. 5,232,261 issued to Kuroda et al. , discloses an example of a door impact beam for an automobile which includes a rectangular cross sectional shaped and internally hollowed heat treated steel member and which includes rounded edges. Attachment portions are provided at two opposite ends of the heat treated steel body and are welded respectively to the beam body as well as to the front and rear portions of the door panel.
  • U.S. Patent No. 5,580,120 issued to Nees et al., and which shows a hollow cross sectional configuration formed by a single piece of material by roll forming a tubular blank to a closed I-beam cross-sectional configuration.
  • First and second mounting plates are arrayed at the opposite ends of the elongate beam and are likewise secured by welding.
  • the present invention is a protective bar system for installation within a vehicle, and most particularly a vehicle door.
  • a protective bar is provided and is constructed of a roll formed steel material. Martensitic steel is a desirable material for protective bars due to its high strength. It is preferable to form martensitic steel by roll forming; since the process is fast, and does not require large, complicated equipment. It has further been determined that hot stamping of martensitic steel is fairly expensive to accomplish and often results in thinning of the material, with adverse structural consequences.
  • the elongate protective bar exhibits a substantially "U” shaped cross section and further includes first and second oppositely extending flange portions extending from the cross sectionally "U" shaped body. Secured to a first end of the protective bar is a first flange and secured to a second end of the protective bar is a second flange.
  • the first and second flanges are likewise constructed with a substantially “U” shaped cross section and with oppositely and outwardly extending portions for receiving the ends of the elongate bar in matingly engaging fashion.
  • the flanges each further include substantially flattened ends for securing to front and rear portions of the door panels.
  • a structural adhesive secures the first and second flanges to the matingly engaging ends of the protective bar and is a novel improvement over prior art welding techniques which often result in the roll formed martensitic steel deforming when flanges are welded thereto. It has also been found that welding techniques employed with martensitic steel will result in a delayed deformation after some time, this causing a resultant deformation of a vehicle door to which the protective bar has been attached.
  • the substantially flattened ends of the first and second flanges may themselves be secured to front and rear portions of the door panel either by welding or by the use of additional structural adhesives.
  • Figure 1 is an environmental view of the protective bar system mounted within a conventional vehicle door according to the present invention
  • Figure 2 is an enlarged view of the protective bar system as illustrated in Figure 1 according to the present invention.
  • Figure 3 is a side view of the protective bar system illustrated in Figures 1 and 2 according to the present invention.
  • Figure 4 is a cross-sectional view of the bar system of Figure 2 taken along lines 4-4; and Figure 5 is a cross-sectional view of the bar system of Figure 2 taken along lines 5-5.
  • a protective bar system for use with a conventional vehicle door 12.
  • the vehicle door 12 is constructed in a conventional manner and typically includes an outer panel 14, a spaced apart inner panel 16, a front portion 18 and a rear portion 20. It is understood however that the protective bar system according to the present invention may further be utilized with any other conventional portion of a vehicle, such as its undercarriage, roof or rear side, or with any other type of enclosure in which the provision of an impact resistant member would be advantageous.
  • the bar system includes an elongate and roll formed steel bar 22 which, viewed in cross section, has a substantially modified "U" shaped or hat shaped configuration with a flat base 24, a first upwardly extending side 26, a second upwardly extending side 28, a first flange portion 30 extending from an upper edge of the first upwardly extending side 26 and a second flange portion 32 extending in opposite fashion from the first flange portion 30 and from an upper edge of the second upwardly extending side 26.
  • the first and second flange portions 30 and 32 preferably extend in substantially perpendicular fashion from the upwardly extending sides 26 and 28 and in parallel fashion relative to the flat base 24, however it is understood that cross sectional shape of the bar 22 can be modified to a substantially "V" shape or other configuration according to strength requirements and without departing from the scope of the invention.
  • the bar is preferably formed of a martensitic steel preferably of a grade between 190 to 220 and a thickness of 2.0 mils and such is available from the Inland Steel Company among others. Within the context of this disclosure, it is to be understood that martensitic steel is a high strength roll formable steel which includes martensitic therein. It is further understood that other types of high strength steel may also be utilized in the protective bar system according to the present invention.
  • a first flange 34 is adhesively bonded to one end and a second flange 36 adhesively bonded to the other end of the bar 22.
  • the first and second flanges 34 and 36 are shaped to nest with the ends of the steel bar 22 as best shown in Figure 4.
  • first flange 34 includes a mating flat base 38, a first side 40, a second side 42, a first outwardly extending flange portion 44 and a second outwardly extending flange portion 46.
  • the flat base 38, first and second sides 40 and 42 and first and second outwardly extending flange portions 44 and 46 are matingly engaged with the corresponding surfaces 24,
  • the first flange 34 further includes first and second downwardly extending end portions 48 and 50 which extend from the first and second outwardly extending flange portions 44 and 46, respectively, and cover the terminating edges of the opposite extending flange portions 30 and 32 when viewed from the side.
  • the second flange 36 is constructed identically to the first flange 34 such that it will matingly engage with the opposite end of the steel bar 22.
  • the flanges 34 and 36 are preferably stamped steel and are shaped, at corresponding flattened ends 52 and 54, to conform to mounting surfaces on the front and rear portions 18 and 20 of the vehicle door 12. Different brackets 14 and 16 may also be used depending upon the application.
  • the steel bar 22 has a uniform cross-section and therefore by using the steel bar 22 in combination with a variety of flanges 34 and 36, the steel bar 22 can mate with a variety of vehicle surfaces.
  • the flanges are adhesively bonded to the steel bar 22 using a layer of structural adhesive 56.
  • structural adhesives are understood to include high strength adhesives having a yield strength in a shear of at least 2000 pounds per square inch.
  • the structural adhesive 56 is a two part epoxy with a yield strength in shear of at least 2067 pounds per square inch according to specified requirements and typically of a value greater than 3000 pounds per square inch.
  • Such adhesives are available from The 3-M Corporation and an example is the two part epoxy adhesive 5047 which is formulated for hem flange bonding applications on aluminum, steel or the like.
  • martensitic steel is roll formed into the substantially
  • curing is accomplished by moderate heating of the adhesive, typically to a temperature of less than 350°F. Such temperatures will not deform the martensitic bar since they do not reach the higher temperatures otherwise accomplished by conventional welding techniques or the like. Heating may be accomplished by baking the unit in an oven, or by passing an electrical current through the adhesive so as to cause resistive heating in the area of the adhesive. In some instances, room temperature curing adhesives may be employed. It is also envisioned that the flattened ends 52 and 54 of the flanges 34 and 36 may also be secured to the front and rear portions 18 and 20 through use of a structural adhesive as well as being secured by conventional mounting techniques such as welding or the like.

Abstract

A protective bar system (10) for installation within a vehicle door (12) including an elongate protective bar (22) having a substantially hat shaped configuration (24, 26, 28, 30, 32) in cross section. The protective bar is fabricated from a martensitic steel. A first flange (34) is secured to a first end of the bar and a second flange (36) is secured to a second end of the bar utilizing a structural adhesive (56). Curing of the adhesive at a specified temperature of less than 350 degrees F prevents unwanted deformation of the martensitic steel bar. The flanges each further include a flattened end portion which are secured to the front and rear portions (18, 20) of the door panel, respectively.

Description

PROTECTIVE BAR FOR VEHICLE DOOR
Cross-Reference to Related Applications
The present application claims priority of provisional application Serial No. 60/061,103, filed October 3, 1997, and titled Protective Bar For Vehicle
Door.
Technical Field The present invention relates generally to protective bars for vehicles and more specifically to a roll formed martensitic steel protective bar with flanges bonded to the protective bar using structural adhesive.
Background of the Invention
Protective bars for vehicles are generally known and are necessary for protecting vehicle occupants during a crash. A protective bar for a vehicle must have sufficient strength to adequately protect the passengers of the vehicle during the crash. At the same time, it is desirable to design the bar for a specific yield or failure point so that crash loads can be dynamically absorbed.
As with all automotive components, it is also desirable that the protective bar be low in weight and cost. A typical protective bar consists of a tubular bar positioned from front to rear in a vehicle door. Brackets for interconnecting the bar and the door are typically welded to the ends of the tubular bar. Many prior art tubular steel protective bars suffer from the limitation that they are heavy and it is difficult to control the yield or failure point of the bar.
U.S. Patent No. 5,232,261, issued to Kuroda et al. , discloses an example of a door impact beam for an automobile which includes a rectangular cross sectional shaped and internally hollowed heat treated steel member and which includes rounded edges. Attachment portions are provided at two opposite ends of the heat treated steel body and are welded respectively to the beam body as well as to the front and rear portions of the door panel.
A further example of a vehicle door intrusion beam is illustrated in U.S. Patent No. 5,580,120, issued to Nees et al., and which shows a hollow cross sectional configuration formed by a single piece of material by roll forming a tubular blank to a closed I-beam cross-sectional configuration. First and second mounting plates are arrayed at the opposite ends of the elongate beam and are likewise secured by welding. Summary of the Present Invention
The present invention is a protective bar system for installation within a vehicle, and most particularly a vehicle door. A protective bar is provided and is constructed of a roll formed steel material. Martensitic steel is a desirable material for protective bars due to its high strength. It is preferable to form martensitic steel by roll forming; since the process is fast, and does not require large, complicated equipment. It has further been determined that hot stamping of martensitic steel is fairly expensive to accomplish and often results in thinning of the material, with adverse structural consequences.
The elongate protective bar exhibits a substantially "U" shaped cross section and further includes first and second oppositely extending flange portions extending from the cross sectionally "U" shaped body. Secured to a first end of the protective bar is a first flange and secured to a second end of the protective bar is a second flange. The first and second flanges are likewise constructed with a substantially "U" shaped cross section and with oppositely and outwardly extending portions for receiving the ends of the elongate bar in matingly engaging fashion. The flanges each further include substantially flattened ends for securing to front and rear portions of the door panels.
A structural adhesive secures the first and second flanges to the matingly engaging ends of the protective bar and is a novel improvement over prior art welding techniques which often result in the roll formed martensitic steel deforming when flanges are welded thereto. It has also been found that welding techniques employed with martensitic steel will result in a delayed deformation after some time, this causing a resultant deformation of a vehicle door to which the protective bar has been attached. The substantially flattened ends of the first and second flanges may themselves be secured to front and rear portions of the door panel either by welding or by the use of additional structural adhesives.
Brief Description of the Drawings
Reference will now be made to the attached drawings, when read in combination with the following specification, wherein like reference numerals refer to like parts throughout the several views, and in which:
Figure 1 is an environmental view of the protective bar system mounted within a conventional vehicle door according to the present invention;
Figure 2 is an enlarged view of the protective bar system as illustrated in Figure 1 according to the present invention;
Figure 3 is a side view of the protective bar system illustrated in Figures 1 and 2 according to the present invention;
Figure 4 is a cross-sectional view of the bar system of Figure 2 taken along lines 4-4; and Figure 5 is a cross-sectional view of the bar system of Figure 2 taken along lines 5-5.
Detailed Description of the Drawings
Referring now to the figures, a protective bar system according to the present invention is generally shown at 10 for use with a conventional vehicle door 12. The vehicle door 12 is constructed in a conventional manner and typically includes an outer panel 14, a spaced apart inner panel 16, a front portion 18 and a rear portion 20. It is understood however that the protective bar system according to the present invention may further be utilized with any other conventional portion of a vehicle, such as its undercarriage, roof or rear side, or with any other type of enclosure in which the provision of an impact resistant member would be advantageous.
The bar system includes an elongate and roll formed steel bar 22 which, viewed in cross section, has a substantially modified "U" shaped or hat shaped configuration with a flat base 24, a first upwardly extending side 26, a second upwardly extending side 28, a first flange portion 30 extending from an upper edge of the first upwardly extending side 26 and a second flange portion 32 extending in opposite fashion from the first flange portion 30 and from an upper edge of the second upwardly extending side 26. The first and second flange portions 30 and 32 preferably extend in substantially perpendicular fashion from the upwardly extending sides 26 and 28 and in parallel fashion relative to the flat base 24, however it is understood that cross sectional shape of the bar 22 can be modified to a substantially "V" shape or other configuration according to strength requirements and without departing from the scope of the invention. The bar is preferably formed of a martensitic steel preferably of a grade between 190 to 220 and a thickness of 2.0 mils and such is available from the Inland Steel Company among others. Within the context of this disclosure, it is to be understood that martensitic steel is a high strength roll formable steel which includes martensitic therein. It is further understood that other types of high strength steel may also be utilized in the protective bar system according to the present invention.
A first flange 34 is adhesively bonded to one end and a second flange 36 adhesively bonded to the other end of the bar 22. The first and second flanges 34 and 36 are shaped to nest with the ends of the steel bar 22 as best shown in Figure 4. Specifically, referring again to Figure 4, which is the cutaway view showing first flange 34 in nesting arrangement with associated end of steel bar 22, first flange 34 includes a mating flat base 38, a first side 40, a second side 42, a first outwardly extending flange portion 44 and a second outwardly extending flange portion 46. The flat base 38, first and second sides 40 and 42 and first and second outwardly extending flange portions 44 and 46 are matingly engaged with the corresponding surfaces 24,
26, 28, 30 and 32 of the steel bar 22 as viewed in cross section. The first flange 34 further includes first and second downwardly extending end portions 48 and 50 which extend from the first and second outwardly extending flange portions 44 and 46, respectively, and cover the terminating edges of the opposite extending flange portions 30 and 32 when viewed from the side. The second flange 36 is constructed identically to the first flange 34 such that it will matingly engage with the opposite end of the steel bar 22.
The flanges 34 and 36 are preferably stamped steel and are shaped, at corresponding flattened ends 52 and 54, to conform to mounting surfaces on the front and rear portions 18 and 20 of the vehicle door 12. Different brackets 14 and 16 may also be used depending upon the application. The steel bar 22 has a uniform cross-section and therefore by using the steel bar 22 in combination with a variety of flanges 34 and 36, the steel bar 22 can mate with a variety of vehicle surfaces. The flanges are adhesively bonded to the steel bar 22 using a layer of structural adhesive 56. Within the context of this disclosure, structural adhesives are understood to include high strength adhesives having a yield strength in a shear of at least 2000 pounds per square inch. Preferably, the structural adhesive 56 is a two part epoxy with a yield strength in shear of at least 2067 pounds per square inch according to specified requirements and typically of a value greater than 3000 pounds per square inch. Such adhesives are available from The 3-M Corporation and an example is the two part epoxy adhesive 5047 which is formulated for hem flange bonding applications on aluminum, steel or the like. To form the bar 22, martensitic steel is roll formed into the substantially
"U" shaped configuration with first and second flange portions 30 and 32 extendingJherefrom. This cross-sectional shape provides high strength and the additional mating surface area of the flange portions 30 and 32 provide a large bonding region for the structural adhesive layer 56 as best shown in Figure 4. Roll forming is generally limited to forming pieces without closed sections.
Therefore, an open hat channel or "U" shaped configuration is easily formed.
After the flanges 34 and 36 are attached through the use of the structural adhesive, curing is accomplished by moderate heating of the adhesive, typically to a temperature of less than 350°F. Such temperatures will not deform the martensitic bar since they do not reach the higher temperatures otherwise accomplished by conventional welding techniques or the like. Heating may be accomplished by baking the unit in an oven, or by passing an electrical current through the adhesive so as to cause resistive heating in the area of the adhesive. In some instances, room temperature curing adhesives may be employed. It is also envisioned that the flattened ends 52 and 54 of the flanges 34 and 36 may also be secured to the front and rear portions 18 and 20 through use of a structural adhesive as well as being secured by conventional mounting techniques such as welding or the like.
In view of the teaching presented herein, other modifications and variations of the present inventions will be readily apparent to those of skill in the art. The foregoing drawings, discussion and description are illustrative of several embodiments of the present invention; but are not meant to be limitations on the practice thereof. It is the following claims, including all equivalents, which define the scope of the invention. I claim:

Claims

Claims 1. A protective bar system for a vehicle comprising: a protective bar having a first end and a second end; a first flange having a bonding region and an attachment region, said bonding region configured for bonding to said first end of said protective bar, said attachment region configured for attachment to the vehicle; a second flange having a bonding region and an attachment region, said bonding region configured for bonding to said second end of said protective bar, said attachment region configured for attachment to the vehicle; and a structural adhesive forming a first adhesive bond between said bonding region of said first flange and said first end of said protective beam, and a second adhesive bond between said bonding region of said second flange and said second end of said protective beam.
2. The protective bar system of claim 1 , wherein: said structural adhesive comprises an epoxy adhesive.
3. The protective bar system of claim 1 , wherein: said structural adhesive has a yield strength in shear greater than 3000 pounds per square inch.
4.s The protective bar system of claim 1 , wherein: said protective bar is fabricated from martensitic steel with a grade in the range of 190 to 220.
5. The protective bar system of claim 1 , wherein: said protective bar has a thickness of approximately 2.0 mils.
6. The protective bar system of claim 1 , wherein: said first and second flanges are stamped steel.
7. The protective bar system of claim 1, wherein: said protective bar is configured as a substantially hat channel with two flange portions extending therefrom.
8. A protective bar system for a vehicle door comprising: a roll formed martensitic steel protective bar having a first end and a second end and a uniform cross section; a first flange having a bonding region and an attachment region, said bonding region configured for bonding to said first end of said protective bar and having a cross section corresponding to the cross section of said first end, said attachment region configured for attachment to the vehicle door; a second flange having a bonding region and an attachment region, said bonding region configured for bonding to said second end of said protective bar and having a cross section corresponding to the cross section of said second end, said attachment region configured for attachment to the vehicle door; and an adhesive forming a first adhesive bond between said bonding region of said first flange and said first end of said protective bar, and a second adhesive bond between said bonding region of said second flange and said second end of said protective bar.
9. A method of manufacturing a protective bar system for a vehicle, comprising the steps of: a. roll forming martensitic steel sheet stock into a protective bar having a uniform cross section and a first and second end; b. forming a first flange and a second flange; c. bonding said first flange to said first end of said protective bar using a two part epoxy structural adhesive; d. bonding said second flange to said second end of said protective bar using a two part epoxy.
PCT/US1998/020668 1997-10-03 1998-10-01 Protective bar for vehicle door WO1999017947A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002305343A CA2305343A1 (en) 1997-10-03 1998-10-01 Protective bar for vehicle door
AU10647/99A AU1064799A (en) 1997-10-03 1998-10-01 Protective bar for vehicle door

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6110397P 1997-10-03 1997-10-03
US60/061,103 1997-10-03

Publications (1)

Publication Number Publication Date
WO1999017947A1 true WO1999017947A1 (en) 1999-04-15

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ID=22033611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/020668 WO1999017947A1 (en) 1997-10-03 1998-10-01 Protective bar for vehicle door

Country Status (3)

Country Link
AU (1) AU1064799A (en)
CA (1) CA2305343A1 (en)
WO (1) WO1999017947A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015454A1 (en) * 1998-09-14 2000-03-23 Joalto Design, Inc. Vehicle closure panel having an intrusion beam as primary structure
WO2002004240A1 (en) * 2000-07-12 2002-01-17 Shape Corporation Roll-formed and stamped doorbeam
WO2004104125A1 (en) * 2003-05-14 2004-12-02 L & L Products, Inc. Method of adhering members and an assembly formed thereby
JP2006056387A (en) * 2004-08-20 2006-03-02 Aisin Takaoka Ltd Door impact beam and its mounting structure
US9120367B2 (en) 2013-03-14 2015-09-01 Henkel Ag & Co. Kgaa Modular door beam assembly and method of assembly

Citations (10)

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Publication number Priority date Publication date Assignee Title
US4090734A (en) * 1975-10-01 1978-05-23 Nissan Motor Company, Ltd. Reinforcement member for an automobile door
JPS5650813A (en) * 1979-10-03 1981-05-08 Nissan Motor Co Ltd Reinforcement structure for car door
DE3011345A1 (en) * 1980-03-25 1981-10-01 Daimler-Benz Ag, 7000 Stuttgart CONNECTION OF TUBES TO EDGE AREAS OF SHEETS OR THE LIKE
US4684166A (en) * 1986-05-19 1987-08-04 General Motors Corporation Vehicle door impact beam and stabilizing assembly
US4796946A (en) * 1987-09-04 1989-01-10 Inland Steel Company Automotive vehicle door and bar reinforcement
US4861097A (en) * 1987-09-18 1989-08-29 Essex Composite Systems Lightweight composite automotive door beam and method of manufacturing same
US5272841A (en) * 1992-10-21 1993-12-28 The Budd Company Composite metal intrusion beam and method of making same
US5404690A (en) * 1993-03-26 1995-04-11 Crescive Die & Tool, Inc. Impact beam assembly method and apparatus
US5580120A (en) * 1995-02-23 1996-12-03 Mascotech Tubular Products, Inc. Vehicle door intrusion beam
US5785376A (en) * 1995-06-21 1998-07-28 Mascotech Tubular Products, Inc. Vehicle door beam

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090734A (en) * 1975-10-01 1978-05-23 Nissan Motor Company, Ltd. Reinforcement member for an automobile door
JPS5650813A (en) * 1979-10-03 1981-05-08 Nissan Motor Co Ltd Reinforcement structure for car door
DE3011345A1 (en) * 1980-03-25 1981-10-01 Daimler-Benz Ag, 7000 Stuttgart CONNECTION OF TUBES TO EDGE AREAS OF SHEETS OR THE LIKE
US4684166A (en) * 1986-05-19 1987-08-04 General Motors Corporation Vehicle door impact beam and stabilizing assembly
US4796946A (en) * 1987-09-04 1989-01-10 Inland Steel Company Automotive vehicle door and bar reinforcement
US4861097A (en) * 1987-09-18 1989-08-29 Essex Composite Systems Lightweight composite automotive door beam and method of manufacturing same
US5272841A (en) * 1992-10-21 1993-12-28 The Budd Company Composite metal intrusion beam and method of making same
US5404690A (en) * 1993-03-26 1995-04-11 Crescive Die & Tool, Inc. Impact beam assembly method and apparatus
US5580120A (en) * 1995-02-23 1996-12-03 Mascotech Tubular Products, Inc. Vehicle door intrusion beam
US5785376A (en) * 1995-06-21 1998-07-28 Mascotech Tubular Products, Inc. Vehicle door beam

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6196619B1 (en) 1995-12-22 2001-03-06 Joalto Design, Inc. Vehicle closure panel having an intrusion beam as primary structure
WO2000015454A1 (en) * 1998-09-14 2000-03-23 Joalto Design, Inc. Vehicle closure panel having an intrusion beam as primary structure
WO2002004240A1 (en) * 2000-07-12 2002-01-17 Shape Corporation Roll-formed and stamped doorbeam
US6622450B2 (en) 2000-07-12 2003-09-23 Shape Corporation Roll-formed and stamped doorbeam
WO2004104125A1 (en) * 2003-05-14 2004-12-02 L & L Products, Inc. Method of adhering members and an assembly formed thereby
US7041193B2 (en) * 2003-05-14 2006-05-09 L & L Products, Inc. Method of adhering members and an assembly formed thereby
JP2006056387A (en) * 2004-08-20 2006-03-02 Aisin Takaoka Ltd Door impact beam and its mounting structure
US9120367B2 (en) 2013-03-14 2015-09-01 Henkel Ag & Co. Kgaa Modular door beam assembly and method of assembly

Also Published As

Publication number Publication date
AU1064799A (en) 1999-04-27
CA2305343A1 (en) 1999-04-15

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