CA1045183A - Energy absorbing cellular matrix for vehicles - Google Patents
Energy absorbing cellular matrix for vehiclesInfo
- Publication number
- CA1045183A CA1045183A CA261,417A CA261417A CA1045183A CA 1045183 A CA1045183 A CA 1045183A CA 261417 A CA261417 A CA 261417A CA 1045183 A CA1045183 A CA 1045183A
- Authority
- CA
- Canada
- Prior art keywords
- matrix
- cells
- wall means
- thickness
- zone
- 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
Links
Classifications
-
- 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
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
- B60R2019/1866—Cellular structures
-
- 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
- B60R2019/1886—Bumper fascias and fastening means therefor
Abstract
ENERGY ABSORBING CELLULAR MATRIX FOR VEHICLES
Abstract of the Disclosure:
Soft face bumper for vehicles incorporating a resil-ient energy absorbing cellular matrix molded from a plastic material and having walls of longitudinally extending cells stepped in thickness to provide at least two serially arranged working zones to form a staged energy absorber.
Abstract of the Disclosure:
Soft face bumper for vehicles incorporating a resil-ient energy absorbing cellular matrix molded from a plastic material and having walls of longitudinally extending cells stepped in thickness to provide at least two serially arranged working zones to form a staged energy absorber.
Description
'`; 7~ 7 7- 7~ ~ 7~
particularly to a resilient energy a~sorbing cellular matrix for vehicles having longitudinally extending cells formed from a latticework of intersecting walls which are stepped in thickness to provide staged working zones deflectable in series to absorb impact energy.
Prior to the present invention soft face energy absorbers for vehicle application such as for front and rear bumpers have been made from resilient plastic material and injection molded to have longitudinally extending cells.
The cells of these energy absorbers in the installed position are generally parallel ko the longitudinal axis of the vehicle and twist and buckle on impact to absorb impact energy.
~he energy absorbers of this invention and the prior art have memory and, after removal of the impact load, will gradually recover toward their origi~al configuration generally with no apparent damage. Generally the cells of the prior energy ¦~
absorbers have walls with a draft angle which taper from a minimum thickness at one end of the cells to a maximu~ thick-ness at the other end to form a single worXing zone. In cross section, the walls of each cell have a wedge ~r triangle like formation which results from the draft of the mold ~ores 3Q to facilitate the ejection of the cellular matrix from the -,~
e ,; ,~
~145~8~
mold. While the tapered wall cellular construction i8 an effective energy absorber when deflected, it is difficult to tailor to meet specific energy absorption re~uirements and often calls for excessive guantities of material in the wall construction to fulfill its purposes.
In this invention the energy absorber is molded into a multicelled unit with a latticework of intersec~ing walls stepped in thickness to provide separate working zones, serially deflected in accordance with energy absorption requirements, to provide a more efficient and effective energy absorber. Accordingly, it is a feature~ object and advantage o~ this invention to provide a new and improved energy absorbing cellular medium formed rom a latticework of intersecting walls having primary and secondary working zones which are operative in series with one another to ab~orb impa~t energy. on predetermined high energy impact loads the energy o~ impact is absorbed by the corresponding se~uenced deflection of the primary and secondary zones; on lower energy impacts only the primary zone will be deflected to provide for ., ~ . ..
absorption of impact energy.
Another feature, object and advantage of thi~ inven-tion is to provide a new and improved multicelled energy absorbing media of plastic material having intersecting walls which are stepped in thickness at a point intermediate the inner and outer ends of the walls so that primary and second-ary deflecting zones are formed and with the walls of the ; ;~
primary 20ne being o~ reduced thickness to provide savings .. , in weight and material and tailored to deflect in response to l~w energy impact loads to thereby provide more eficient use of the mQterial orming the mediaO
r ~
: ~ , `~ :
5~8;~
These and other features, objects and advantages ofthis invention wiIl be more apparent from the fo11Owing detailed description and drawing in which:
FIGURE 1 is a perspective view of the ~ront portion of a vehicle incorporating this invention.
FIGURE 2 is a sectional view taken along line 2-2 of FIGURE 1 and FIGURE 3 is a perspective view of the energy ab-- sorber unit of this invention with parts broken away.
Turning now in greater detail to the drawing, there ~ is shown in FIGURE 1 an energy absorbing bumper assembly 10 ; ~ :.
that extends horizontally across the front of the body 12 of ;
.
a vehicle 14. Bumper assembly 10 comprises an elongated steel bumper beam 16 disposed externally of the vehicle body 12 which is rigidly connected to the vehicle by a pair of mount-ing brackets 20 of which only one is shown. Each mounting bracket is generally L-shaped in formation and has a flange :. .: :.
22 that fits against the rear of the bumper beam 16 and is secured thereto by bolt and nut fasteners 24. The leg 25 of ;~
each bracket extends at right angles with respect to flange 22 and fits against an associated side rail 26 of the vehicle frame and is rigidly fastened thereto by threaded asteners 28.
A flexible energy absorber 30 forming part of the bumper assem- -bly is secured to the outer face of the bumper beam 16 by any suitable means such as threaded fasteners 31 and preferably extends across the entire width of the vehicle. This energy absorber is covered by a thin walled and flexible plastic ~ ~ -facia 32 contoured to fit the shaped outer face of the energy .
absorber. The facia may be color matched with the vehicle body work or suitably coated to simulate a conventional bright 3 ~' .
~O~S~33 :
work bumper. This plastic facia protects the energy absorber assembly from foreign matter such as dirt and water and pro-vides a finished appearance ~or the vehicle. The facia may be secured to the bumper beam hy suitable fastener means such as by threaded fasteners 34. The facia is longitudinally channeled at 35 to retain a finishing strip 37 of plastic therein as illustrated in the figures~
: .
The vehicle energy absorber 30 comprises a resilient energy absorbing matrix formed from a suitable thermoplastic material such as a blended olefin. The matrix has a plurality of longitudinally extending and generally parallel cells 42 open throughout their lengths which are formed by a lattice-work of intersecting horizontal and vertically extending walls 46 and 48.
As ~hown in FIGURES 2 and 3 each of the cells 4 have a base section 50 formed by thickened portions of the horizontal and vertical walls 46 and 48 which extends from the backing beam 16 to a plane P between the front and rear ends of the matrix. The base portion of the cells provides a secondary deflection zone z of the matrix and a yieldable backing for a forward section 52 formed by the thinned portions ~-of the horizontal and vertical walls. As shown, this f~rward section provides a primary defle~tion zone Zl' Thus the ~ !
horizontal and vertical walls are stepped in thickness at ~ ~;
. .
plane P to provide the primary and secondary deflection zones which are staged for effective absorption of impact enargy. ~ -Accordingly, in the preferred embodiment the thin walled section forming the primary deflection zone Zl w111 deflect ~ ;
in response to low speed vehicle impacts up to a predetermined load without any appreciable de1ection o~ the substantia~ly .,,'".','' ~".
'. "' ~ .:
''-': :
: . .
;l~451~33 thicker wall section of the secondary zone z. When this pre-determined load is exceeded the secondary zone staged in series with the primary zone will deflect to provide additional energy absorption capacity.
As shown the horizontal and vertical walls of the base portion 50 and the forward section 52 are tapered as re-:.. ..
quired by the cores of the injection mold used in forming the ~ , matrix. It will be appreciated that with the staged energy absorbing capability of this invention, the matrix can be tailored to provide protection to suit particular re~uirements~For example, the secondary zone Z can be increased in depth as needed for greater energy absorption capacity. Also with the stepped wall construction, the walls of the forward section of the matrix can be made thinner or thicker as re-guired to meet low speed impact requirements. Thus the walls of the primary zone can be sized in thickness so more of the wall material will be distorted on predetermined impact for increased efficiency. With the thin wall section appropriately tailored to meet predetermined reguirements and standards, an appreciable savings in material, weight and cost may be achieved.
While a preferred embodiment of this invention has been shown and described for purposes of illustrating this invention, other embodiments embodying the concepts of this invention may be adapted by those skilled in the art such as falls within the scope oi the appended claims.
""' .
~ . .
S :, ``' '''' '
particularly to a resilient energy a~sorbing cellular matrix for vehicles having longitudinally extending cells formed from a latticework of intersecting walls which are stepped in thickness to provide staged working zones deflectable in series to absorb impact energy.
Prior to the present invention soft face energy absorbers for vehicle application such as for front and rear bumpers have been made from resilient plastic material and injection molded to have longitudinally extending cells.
The cells of these energy absorbers in the installed position are generally parallel ko the longitudinal axis of the vehicle and twist and buckle on impact to absorb impact energy.
~he energy absorbers of this invention and the prior art have memory and, after removal of the impact load, will gradually recover toward their origi~al configuration generally with no apparent damage. Generally the cells of the prior energy ¦~
absorbers have walls with a draft angle which taper from a minimum thickness at one end of the cells to a maximu~ thick-ness at the other end to form a single worXing zone. In cross section, the walls of each cell have a wedge ~r triangle like formation which results from the draft of the mold ~ores 3Q to facilitate the ejection of the cellular matrix from the -,~
e ,; ,~
~145~8~
mold. While the tapered wall cellular construction i8 an effective energy absorber when deflected, it is difficult to tailor to meet specific energy absorption re~uirements and often calls for excessive guantities of material in the wall construction to fulfill its purposes.
In this invention the energy absorber is molded into a multicelled unit with a latticework of intersec~ing walls stepped in thickness to provide separate working zones, serially deflected in accordance with energy absorption requirements, to provide a more efficient and effective energy absorber. Accordingly, it is a feature~ object and advantage o~ this invention to provide a new and improved energy absorbing cellular medium formed rom a latticework of intersecting walls having primary and secondary working zones which are operative in series with one another to ab~orb impa~t energy. on predetermined high energy impact loads the energy o~ impact is absorbed by the corresponding se~uenced deflection of the primary and secondary zones; on lower energy impacts only the primary zone will be deflected to provide for ., ~ . ..
absorption of impact energy.
Another feature, object and advantage of thi~ inven-tion is to provide a new and improved multicelled energy absorbing media of plastic material having intersecting walls which are stepped in thickness at a point intermediate the inner and outer ends of the walls so that primary and second-ary deflecting zones are formed and with the walls of the ; ;~
primary 20ne being o~ reduced thickness to provide savings .. , in weight and material and tailored to deflect in response to l~w energy impact loads to thereby provide more eficient use of the mQterial orming the mediaO
r ~
: ~ , `~ :
5~8;~
These and other features, objects and advantages ofthis invention wiIl be more apparent from the fo11Owing detailed description and drawing in which:
FIGURE 1 is a perspective view of the ~ront portion of a vehicle incorporating this invention.
FIGURE 2 is a sectional view taken along line 2-2 of FIGURE 1 and FIGURE 3 is a perspective view of the energy ab-- sorber unit of this invention with parts broken away.
Turning now in greater detail to the drawing, there ~ is shown in FIGURE 1 an energy absorbing bumper assembly 10 ; ~ :.
that extends horizontally across the front of the body 12 of ;
.
a vehicle 14. Bumper assembly 10 comprises an elongated steel bumper beam 16 disposed externally of the vehicle body 12 which is rigidly connected to the vehicle by a pair of mount-ing brackets 20 of which only one is shown. Each mounting bracket is generally L-shaped in formation and has a flange :. .: :.
22 that fits against the rear of the bumper beam 16 and is secured thereto by bolt and nut fasteners 24. The leg 25 of ;~
each bracket extends at right angles with respect to flange 22 and fits against an associated side rail 26 of the vehicle frame and is rigidly fastened thereto by threaded asteners 28.
A flexible energy absorber 30 forming part of the bumper assem- -bly is secured to the outer face of the bumper beam 16 by any suitable means such as threaded fasteners 31 and preferably extends across the entire width of the vehicle. This energy absorber is covered by a thin walled and flexible plastic ~ ~ -facia 32 contoured to fit the shaped outer face of the energy .
absorber. The facia may be color matched with the vehicle body work or suitably coated to simulate a conventional bright 3 ~' .
~O~S~33 :
work bumper. This plastic facia protects the energy absorber assembly from foreign matter such as dirt and water and pro-vides a finished appearance ~or the vehicle. The facia may be secured to the bumper beam hy suitable fastener means such as by threaded fasteners 34. The facia is longitudinally channeled at 35 to retain a finishing strip 37 of plastic therein as illustrated in the figures~
: .
The vehicle energy absorber 30 comprises a resilient energy absorbing matrix formed from a suitable thermoplastic material such as a blended olefin. The matrix has a plurality of longitudinally extending and generally parallel cells 42 open throughout their lengths which are formed by a lattice-work of intersecting horizontal and vertically extending walls 46 and 48.
As ~hown in FIGURES 2 and 3 each of the cells 4 have a base section 50 formed by thickened portions of the horizontal and vertical walls 46 and 48 which extends from the backing beam 16 to a plane P between the front and rear ends of the matrix. The base portion of the cells provides a secondary deflection zone z of the matrix and a yieldable backing for a forward section 52 formed by the thinned portions ~-of the horizontal and vertical walls. As shown, this f~rward section provides a primary defle~tion zone Zl' Thus the ~ !
horizontal and vertical walls are stepped in thickness at ~ ~;
. .
plane P to provide the primary and secondary deflection zones which are staged for effective absorption of impact enargy. ~ -Accordingly, in the preferred embodiment the thin walled section forming the primary deflection zone Zl w111 deflect ~ ;
in response to low speed vehicle impacts up to a predetermined load without any appreciable de1ection o~ the substantia~ly .,,'".','' ~".
'. "' ~ .:
''-': :
: . .
;l~451~33 thicker wall section of the secondary zone z. When this pre-determined load is exceeded the secondary zone staged in series with the primary zone will deflect to provide additional energy absorption capacity.
As shown the horizontal and vertical walls of the base portion 50 and the forward section 52 are tapered as re-:.. ..
quired by the cores of the injection mold used in forming the ~ , matrix. It will be appreciated that with the staged energy absorbing capability of this invention, the matrix can be tailored to provide protection to suit particular re~uirements~For example, the secondary zone Z can be increased in depth as needed for greater energy absorption capacity. Also with the stepped wall construction, the walls of the forward section of the matrix can be made thinner or thicker as re-guired to meet low speed impact requirements. Thus the walls of the primary zone can be sized in thickness so more of the wall material will be distorted on predetermined impact for increased efficiency. With the thin wall section appropriately tailored to meet predetermined reguirements and standards, an appreciable savings in material, weight and cost may be achieved.
While a preferred embodiment of this invention has been shown and described for purposes of illustrating this invention, other embodiments embodying the concepts of this invention may be adapted by those skilled in the art such as falls within the scope oi the appended claims.
""' .
~ . .
S :, ``' '''' '
Claims (2)
1. A resilient multicelled matrix of plastic material for absorbing energy of an impact load applied thereto comprising a plurality of longitudinally extending cells disposed adjacent to one another, said cells being formed by a plurality of first and second thin wall means which intersect one another to form open polygonal cells therebetween, each cell extending from a back support surface to an outer impact surface so that all impact loads applied to said matrix are transmitted to all impacted walls of said cells simultaneously, each of said cells having a polygonal base section of predetermined thickness providing a secondary deflecting zone and comprising a first portion of said first and second wall means of a predetermined thickness, ex-tending longitudinally from one end of said matrix to predetermined points between the front and rear ends thereof, each of said cells further having an outer section polygonal in cross section and providing a primary deflecting zone and comprising a second portion of said first and second wall means integral with said first portion and extending directly outwardly from said pre-determined points to the other end of said matrix, said wall means being stepped in thickness at said predetermined points forming a discrete plane extending across said cells so that said first portion is substantially thicker at said plane and all along its longitudinal dimensions than said second portion to thereby separate said matrix into said primary and secondary working zones with differing rates of deflection.
2. A resilient one piece matrix of plastic material for absorbing energy of an impact load applied thereto, said matrix having a plurality of longitudinally extending cells disposed adjacent to each other, each cell extending from a back support surface to an impact surface spaced outwardly from the back surface, said cells being formed by a plurality of first and second continuous and thin wall means which intersect one another to form hollow polygonal cell spaces therebetween and which extend from the support surface to said impact surface, each of said wall means having a minimal thickness at one end of said matrix and a maximum thickness at the other end of said matrix, each of said wall means being stepped in thickness at predetermined points intermediate the ends thereof to form a plane dividing each of said cells into discrete first and second longitudinally extending deflection zones integrally connected in series with respect to each other, said wall means defining said first zone being sub-stantially thinner along their longitudinal dimensions than the wall means defining said second zone and having at said plane a maximum thickness substantially less than the minimum thickness of said wall means defining said second zone, said first and second of said zones having different deflection rates and being both deflected in response to the application of a predetermined impact load applied thereto, and only said first zone being deflected in response to the application of an impact load thereto less than said predetermined impact load.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/653,348 US4186915A (en) | 1976-01-29 | 1976-01-29 | Energy absorbing cellular matrix for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1045183A true CA1045183A (en) | 1978-12-26 |
Family
ID=24620485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA261,417A Expired CA1045183A (en) | 1976-01-29 | 1976-09-17 | Energy absorbing cellular matrix for vehicles |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4186915A (en) |
| CA (1) | CA1045183A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4482180A (en) * | 1981-06-30 | 1984-11-13 | Daimler-Benz Aktiengesellschaft | Bumper for motor vehicles |
| US5056840A (en) * | 1989-08-25 | 1991-10-15 | Daimler-Benz Ag | Motor vehicle bumper |
| US5660426A (en) * | 1994-02-22 | 1997-08-26 | Toyota Jidosha Kabushiki Kaisha | Structure of absorbing impact energy using interior material of automobile |
| US5762392A (en) * | 1995-07-12 | 1998-06-09 | Toyota Jidosha Kabushiki Kaisha | Collision energy absorbing structure by vehicle interior trim material |
| US6059331A (en) * | 1997-05-09 | 2000-05-09 | Toyota Jidosha Kabushiki Kaisha | Bumper reinforcement structure |
| US6227582B1 (en) * | 1999-05-14 | 2001-05-08 | Fuji Jukogyo Kabushiki Kaisha | Bumper beam and bumper system for vehicle |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4397490A (en) * | 1981-05-04 | 1983-08-09 | Ford Motor Company | Low profile bumper |
| GB2134858B (en) * | 1983-02-04 | 1986-12-17 | Talbot Motor | Motor vehicle bumper members |
| JPS60110548A (en) * | 1983-11-22 | 1985-06-17 | Nissan Motor Co Ltd | Rear bumper construction |
| US4569865A (en) * | 1984-03-23 | 1986-02-11 | Susan Shoe Industries Limited | Bumper fascia and process to bond ionomers to metal |
| US4597601A (en) * | 1985-03-18 | 1986-07-01 | Transpec, Inc. | Energy absorbing vehicle bumper |
| NL8600097A (en) * | 1986-01-20 | 1987-08-17 | Stamicarbon | BUMPER. |
| DE3765488D1 (en) * | 1986-07-22 | 1990-11-15 | Japan Styrene Paper Corp | CORE MATERIAL FOR MOTOR VEHICLE BUMPER. |
| DE3637751A1 (en) * | 1986-11-05 | 1988-05-11 | Bayer Ag | PLASTIC SHOCK ABSORBER WITH BUMPER |
| JPS6380247U (en) * | 1986-11-14 | 1988-05-27 | ||
| US4941701C1 (en) * | 1987-12-28 | 2001-06-26 | Melea Ltd | Vehicle bumper |
| US4925224A (en) * | 1989-03-06 | 1990-05-15 | Romeo-Rim, Inc. | Energy absorbing vehicle bumper |
| JP2779852B2 (en) * | 1989-12-06 | 1998-07-23 | スズキ株式会社 | Synthetic resin bumper |
| US5150935A (en) * | 1990-11-06 | 1992-09-29 | Concept Analysis Corp. | Elastomeric energy absorbing mechanism for vehicle bumpers |
| DE4308021A1 (en) * | 1993-03-13 | 1994-09-15 | Fmb Fahrzeug Und Maschinenbau | Device on motor vehicles, especially lorries, for protecting living beings which collide with the motor vehicle |
| FR2728215A1 (en) * | 1994-12-16 | 1996-06-21 | Renault | ENERGY ABSORBING COMPOSITE BUMPER FOR MOTOR VEHICLES |
| CA2182542A1 (en) * | 1996-08-01 | 1998-02-02 | Koichi Yoshino | Shock absorbing wall construction |
| US6244638B1 (en) * | 1998-01-26 | 2001-06-12 | Woodbridge Foam Corporation | Energy management device |
| EP1046546B1 (en) * | 1999-04-24 | 2002-11-27 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Bumper for vehicles having optimal mechanical properties to improve pedestrian protection |
| DE10046595A1 (en) * | 2000-09-20 | 2002-04-18 | Oris Fahrzeugteile Riehle H | Passenger car |
| US6758507B2 (en) | 2001-03-01 | 2004-07-06 | Venture Industries | Energy absorbing external component for vehicle |
| US6406081B1 (en) * | 2001-03-20 | 2002-06-18 | General Electric Company | Energy absorber system |
| JP3585228B2 (en) * | 2001-08-29 | 2004-11-04 | 本田技研工業株式会社 | Car rear body structure |
| US6672635B2 (en) * | 2002-06-06 | 2004-01-06 | Netshape Corporation | Bumper with integrated foam and non-foam components |
| US6994384B2 (en) * | 2002-11-20 | 2006-02-07 | General Electric Company | Integrated solitary bumper beam |
| EP1628857B1 (en) * | 2003-06-03 | 2010-01-27 | Decoma International Inc. | Bumper energy absorber and method of fabricating and assembling the same |
| FR2859429B1 (en) * | 2003-09-05 | 2006-05-05 | Plastic Omnium Cie | ENERGY ABSORPTION BEAM OF A MOTOR VEHICLE |
| FR2860197B1 (en) * | 2003-09-26 | 2005-12-23 | Peguform France | BUMPER ABSORBER FOR LOCALLY DEFORMABLE VEHICLE |
| ATE404407T1 (en) * | 2004-06-16 | 2008-08-15 | Jacob Composite Gmbh | COMPONENT FOR ABSORBING ENERGY IN AN IMPACT |
| FR2895341B1 (en) * | 2005-12-23 | 2008-04-04 | Plastic Omnium Cie | ENERGY ABSORPTION SYSTEM FOR A MOTOR VEHICLE |
| EP2024201B2 (en) * | 2006-05-18 | 2015-12-16 | Gestamp HardTech AB | Bumper beam |
| WO2008016653A2 (en) * | 2006-08-02 | 2008-02-07 | Meridian Automotive Systems, Inc. | Thermoplastic composite bumper system |
| JP4759497B2 (en) * | 2006-11-29 | 2011-08-31 | 東海ゴム工業株式会社 | Shock absorber for automobile |
| US9302638B2 (en) | 2010-10-29 | 2016-04-05 | Sabic Global Technologies B.V. | Unitary energy absorbing assembly and method of making the same |
| US10005408B2 (en) * | 2011-11-03 | 2018-06-26 | Sabic Global Technologies B.V. | Energy absorbing system for conflicting regulatory requirements for vehicle bumpers |
| US20130169000A1 (en) * | 2011-12-28 | 2013-07-04 | Aerofficient Llc | Crash bar aerodynamic device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2732040A (en) * | 1956-01-24 | Constant resistance shock absorbing device | ||
| NL66469C (en) * | 1948-08-12 | 1950-09-15 | ||
| US3181849A (en) * | 1963-09-03 | 1965-05-04 | Amerco Inc | Shock absorbing guard |
| US3721433A (en) * | 1969-11-21 | 1973-03-20 | Collision Devices Inc | Deformable shock-absorbing guard |
| SE346267B (en) * | 1970-04-20 | 1972-07-03 | Saab Scania Ab | |
| IT1045945B (en) * | 1972-12-14 | 1980-06-10 | Ford Motor Co | IMPROVEMENT IN PNEUMATIC BUMPER FOR VEHICLES |
| US3822909A (en) * | 1973-08-28 | 1974-07-09 | St Clair Rubber Co | Bumper strip |
| US3944271A (en) * | 1974-07-05 | 1976-03-16 | Eggert Jr Walter S | Vehicle bumper |
| US3926462A (en) * | 1974-10-11 | 1975-12-16 | Gen Motors Corp | Shock absorbing buffer assembly |
-
1976
- 1976-01-29 US US05/653,348 patent/US4186915A/en not_active Expired - Lifetime
- 1976-09-17 CA CA261,417A patent/CA1045183A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4482180A (en) * | 1981-06-30 | 1984-11-13 | Daimler-Benz Aktiengesellschaft | Bumper for motor vehicles |
| US5056840A (en) * | 1989-08-25 | 1991-10-15 | Daimler-Benz Ag | Motor vehicle bumper |
| US5660426A (en) * | 1994-02-22 | 1997-08-26 | Toyota Jidosha Kabushiki Kaisha | Structure of absorbing impact energy using interior material of automobile |
| US5762392A (en) * | 1995-07-12 | 1998-06-09 | Toyota Jidosha Kabushiki Kaisha | Collision energy absorbing structure by vehicle interior trim material |
| US6059331A (en) * | 1997-05-09 | 2000-05-09 | Toyota Jidosha Kabushiki Kaisha | Bumper reinforcement structure |
| US6227582B1 (en) * | 1999-05-14 | 2001-05-08 | Fuji Jukogyo Kabushiki Kaisha | Bumper beam and bumper system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| US4186915A (en) | 1980-02-05 |
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