JPS5740136A - Shock energy absorbing bumper for vehicle - Google Patents

Shock energy absorbing bumper for vehicle

Info

Publication number
JPS5740136A
JPS5740136A JP11563780A JP11563780A JPS5740136A JP S5740136 A JPS5740136 A JP S5740136A JP 11563780 A JP11563780 A JP 11563780A JP 11563780 A JP11563780 A JP 11563780A JP S5740136 A JPS5740136 A JP S5740136A
Authority
JP
Japan
Prior art keywords
energy absorbing
shock energy
shock
bumper
temperature
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
Application number
JP11563780A
Other languages
Japanese (ja)
Other versions
JPS6157504B2 (en
Inventor
Kazuo Shiotani
Takashi Nishiyama
Michiaki Izawa
Shunichi Komoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuboshi Belting Ltd
Original Assignee
Mitsuboshi Belting Ltd
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 Mitsuboshi Belting Ltd filed Critical Mitsuboshi Belting Ltd
Priority to JP11563780A priority Critical patent/JPS5740136A/en
Publication of JPS5740136A publication Critical patent/JPS5740136A/en
Publication of JPS6157504B2 publication Critical patent/JPS6157504B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE:To both improve shock energy absorbing performance of a bumper and decrease its weight, by using a foamed plastic form consisting of polystyrene and polyethylene with composition ratio in a specific range. CONSTITUTION:A shock energy absorbing bumper 1 is constituted by a reinforcing back-up beam 2, provided with a protrusive base plate 3 in its central part, thin block-shaped shock energy absorbing form 4, arranged in front of the beam 2, and synthetic resin or synthetic rubber made outer skin 5, coating the form 4 further capable to follow up deforming motion of the form 4. Further for the form 4, there is applied a foamed plastic form, consisting of polystyrene and plyethylene with composition ratio of the former to the latter in 90/10-25/75pts.wt. and virtual specific gravity of 0.02-0.10g/cm<2>, in a range of 20% compression stress of 2- 10kg/cm<2> in a shock test at speed of 5miles/hr under normal temperature (23 deg.C), energy absorption efficiency not less than 63% and load recovery rate not less than 40%, and temperature magnification not more than 2.0 in a shock test at similar speed under low temperature (-20 deg.C) and high temperature (60 deg.C).
JP11563780A 1980-08-21 1980-08-21 Shock energy absorbing bumper for vehicle Granted JPS5740136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11563780A JPS5740136A (en) 1980-08-21 1980-08-21 Shock energy absorbing bumper for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11563780A JPS5740136A (en) 1980-08-21 1980-08-21 Shock energy absorbing bumper for vehicle

Publications (2)

Publication Number Publication Date
JPS5740136A true JPS5740136A (en) 1982-03-05
JPS6157504B2 JPS6157504B2 (en) 1986-12-06

Family

ID=14667567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11563780A Granted JPS5740136A (en) 1980-08-21 1980-08-21 Shock energy absorbing bumper for vehicle

Country Status (1)

Country Link
JP (1) JPS5740136A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221745A (en) * 1982-06-19 1983-12-23 Japan Styrene Paper Co Ltd Core material of bumper of car
JPS5940962A (en) * 1982-09-01 1984-03-06 Toyo Tire & Rubber Co Ltd Bumper for unmanned conveyance truck
EP0174483A2 (en) * 1984-08-14 1986-03-19 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Core for an automobile bumper
JPS62256636A (en) * 1986-04-30 1987-11-09 Kanegafuchi Chem Ind Co Ltd Preparation of core material for vehicular bumper and mold therefor
USRE32780E (en) * 1984-03-08 1988-11-08 Japan Styrene Paper Corporation Core material for an automobile bumper
JP2004528513A (en) * 1999-06-29 2004-09-16 ブリヂストン／フアイヤーストーン・インコーポレーテツド Air spring bumper using combination materials
CN100355605C (en) * 2002-09-19 2007-12-19 雷奥两合股份公司 Polymer energy absorber for motor vehicles and bumper system
JP2011208067A (en) * 2010-03-30 2011-10-20 Sekisui Plastics Co Ltd Core material for bumper and bumper obtained using the same
JP2012025347A (en) * 2010-07-27 2012-02-09 Sekisui Plastics Co Ltd Exterior material for automobile
JP2015193789A (en) * 2014-03-26 2015-11-05 株式会社ジェイエスピー Impact absorption material

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866963A (en) * 1973-08-13 1975-02-18 Mccord Corp Energy absorbing bumper assembly
JPS5112074A (en) * 1974-07-18 1976-01-30 Toyo Tire & Rubber Co
JPS5146138A (en) * 1974-08-22 1976-04-20 Crosfield Electronics Ltd Entomenni reezakoo sosasurusochi
JPS5230870A (en) * 1975-09-03 1977-03-08 Sekisui Plastics Process for manufacturing expandable polystyrene particles
JPS5233156A (en) * 1975-09-09 1977-03-14 Sanko Kuki Sochi Kk Work environment cleaning method
JPS5311993A (en) * 1976-07-20 1978-02-02 Daicel Chem Ind Ltd Preparation of polyester
JPS5349731A (en) * 1976-02-23 1978-05-06 Berol Kemi Ab Bumper
JPS5730642A (en) * 1980-07-29 1982-02-18 Toyo Kagaku Kk Car bumper
JPS6027059U (en) * 1983-08-01 1985-02-23 ユニチカ株式会社 Tei-Batsugu
JPH047977U (en) * 1990-05-10 1992-01-24

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866963A (en) * 1973-08-13 1975-02-18 Mccord Corp Energy absorbing bumper assembly
JPS5112074A (en) * 1974-07-18 1976-01-30 Toyo Tire & Rubber Co
JPS5146138A (en) * 1974-08-22 1976-04-20 Crosfield Electronics Ltd Entomenni reezakoo sosasurusochi
JPS5230870A (en) * 1975-09-03 1977-03-08 Sekisui Plastics Process for manufacturing expandable polystyrene particles
JPS5233156A (en) * 1975-09-09 1977-03-14 Sanko Kuki Sochi Kk Work environment cleaning method
JPS5349731A (en) * 1976-02-23 1978-05-06 Berol Kemi Ab Bumper
JPS5311993A (en) * 1976-07-20 1978-02-02 Daicel Chem Ind Ltd Preparation of polyester
JPS5730642A (en) * 1980-07-29 1982-02-18 Toyo Kagaku Kk Car bumper
JPS6027059U (en) * 1983-08-01 1985-02-23 ユニチカ株式会社 Tei-Batsugu
JPH047977U (en) * 1990-05-10 1992-01-24

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221745A (en) * 1982-06-19 1983-12-23 Japan Styrene Paper Co Ltd Core material of bumper of car
JPS5940962A (en) * 1982-09-01 1984-03-06 Toyo Tire & Rubber Co Ltd Bumper for unmanned conveyance truck
USRE32780E (en) * 1984-03-08 1988-11-08 Japan Styrene Paper Corporation Core material for an automobile bumper
EP0174483A2 (en) * 1984-08-14 1986-03-19 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Core for an automobile bumper
JPS62256636A (en) * 1986-04-30 1987-11-09 Kanegafuchi Chem Ind Co Ltd Preparation of core material for vehicular bumper and mold therefor
JP2004528513A (en) * 1999-06-29 2004-09-16 ブリヂストン／フアイヤーストーン・インコーポレーテツド Air spring bumper using combination materials
CN100355605C (en) * 2002-09-19 2007-12-19 雷奥两合股份公司 Polymer energy absorber for motor vehicles and bumper system
US7393030B2 (en) 2002-09-19 2008-07-01 Rehau Ag & Co. Polymer energy absorber for motor vehicles and bumper system
JP2011208067A (en) * 2010-03-30 2011-10-20 Sekisui Plastics Co Ltd Core material for bumper and bumper obtained using the same
JP2012025347A (en) * 2010-07-27 2012-02-09 Sekisui Plastics Co Ltd Exterior material for automobile
JP2015193789A (en) * 2014-03-26 2015-11-05 株式会社ジェイエスピー Impact absorption material

Also Published As

Publication number Publication date
JPS6157504B2 (en) 1986-12-06

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