JPH04211735A - 衝撃エネルギーを吸収する部品 - Google Patents

衝撃エネルギーを吸収する部品

Info

Publication number
JPH04211735A
JPH04211735A JP3034113A JP3411391A JPH04211735A JP H04211735 A JPH04211735 A JP H04211735A JP 3034113 A JP3034113 A JP 3034113A JP 3411391 A JP3411391 A JP 3411391A JP H04211735 A JPH04211735 A JP H04211735A
Authority
JP
Japan
Prior art keywords
notch
impact energy
section
block
sides
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.)
Withdrawn
Application number
JP3034113A
Other languages
English (en)
Inventor
Werner Dr Lenz
ヴェルナー、レンツ
Friedrich Domas
フリードリッヒ、ドマス
Udo Haardt
ウド、ハールト
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of JPH04211735A publication Critical patent/JPH04211735A/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/377—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having holes or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/37—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers of foam-like material, i.e. microcellular material, e.g. sponge rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00—Special receptacle or package
    • Y10S206/814—Space filler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24198—Channel-shaped edge component [e.g., binding, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24488—Differential nonuniformity at margin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]
    • Y10T428/24512—Polyurethane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Buffer Packaging (AREA)
  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
  • Rolling Contact Bearings (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Bathtub Accessories (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、方形横断面の細長いポ
リマー発泡ブロックが設けられており、この方形横断面
が、辺ａとｂを有し、かつ切欠きを有し、この切欠きが
、１つの辺にあってブロックの全長に沿って延びている
、衝撃エネルギーを吸収する発泡部品に関する。
【０００２】
【従来の技術】衝撃エネルギー吸収部品の効果は品質係
数ηによって表され、この品質係数は、従来通常のポリ
マー発泡部品では０．５〜０．７である。これは次式に
よって計算される。
【０００３】
【数１】 その場合Ｅ１は実際に吸収されたエネルギーであり、か
つＥ２は、品質係数η＝１を有する理想エネルギー吸収
体によって吸収できるはずのエネルギーである。図１の
グラフに示すように、このような部品は、準方形の力変
位特性曲線を有するので、最大衝撃力Ｆｍａｘのところ
で極めて小さな変位ｓしか生じないようにする。
【０００４】
【発明の目的】それ故に本発明の目的は、力変位特性曲
線が基本的にほぼ方形である簡単な衝撃エネルギー吸収
部品を開発することにある。
【０００５】
【発明の構成】この目的は、前記のような部品により次
のようにして達成されることがわかった。その場合本発
明によれは、深さｃを有する切欠きは、平行な辺を備え
た幅ｄの中央部と端末円弧部とを有し、かつ前記の寸法
は次式を満たす。
【０００６】 ａ　　＝　　０．９０〜１．１０×ｂ ｃ　　＝　　０．６５〜０．８０×ｂ ｄ　　＝　　０．４５〜０．５５×ａ
【０００７】
【実施例】本発明の実施例を以下図面により詳細に説明
する。
【０００８】部品は、方形横断面の細長いポリマー発泡
ブロック１を有し、この方形横断面は、辺ａとｂを有し
、かつ切欠き２を有し、この切欠きは、ブロックの全長
に沿って延びている（第２図）。吸収すべき衝撃力Ｆは
、切欠き２の反対側にある面ａに作用する。切欠きは、
辺ｂに対して平行な幅ｄの中央部３を有し、この中央部
は円弧部４に隣接している。切欠きの全深さはｃである
。前記寸法が次の条件を満たしていれば、ａ　　＝　　
０．９０〜１．１０×ｂ ｃ　　＝　　０．６５〜０．８０×ｂ ｄ　　＝　　０．４５〜０．５５×ａ 図３に示した実質的に方形の力変位特性曲線が得られ、
曲線のパラメータは部品材料の密度ρである。比較のた
め、通常のポリマー発泡部品の特性曲線５が示してある
。
【０００９】第２図に示す破線の輪郭６は、最大衝撃力
Ｆｍａｘの場合の発泡ブロック１の変形状態を表してい
る。衝撃力が減少すると、ブロックは実質的に弾性的に
元の形に戻る。
【００１０】適当な発泡材料は、発泡ポリプロピレン、
ポリウレタン及びポリ塩化ビニルのようなハード及びセ
ミハード発泡系である。
【００１１】このような材料から作った本発明による部
品を使用した実験によれば、従来の部品よりも品質係数
ηがかなり大きくなることがわかった。
【図面の簡単な説明】
【図１】理想のエネルギー吸収部品の力変位を示すグラ
フである。
【図２】本発明による特徴を備えた部品の横断面図であ
る。
【図３】図２に示す部品の力変位を示すグラフである。
【符号の説明】
１　　　　発泡ブロック ２　　　　切欠き ３　　　　中央部 ４　　　　円弧部

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】　　方形横断面の細長いポリマー発泡ブロ
    ックが設けられており、この方形横断面が、辺ａとｂを
    有し、かつ切欠きを有し、この切欠きは、１つの辺にあ
    ってブロックの全長に沿って延びており、深さＣを有す
    るこの切欠きは、平行な辺を備えた幅ｄの中央部と端末
    円弧部とを有し、これらの寸法は次式 ａ　　＝　　０．９０〜１．１０×ｂ ｃ　　＝　　０．６５〜０．８０×ｂ ｄ　　＝　　０．４５〜０．５５×ａ を満たすことを特徴とする、衝撃エネルギーを吸収する
    発泡部品。
JP3034113A 1990-03-12 1991-02-28 衝撃エネルギーを吸収する部品 Withdrawn JPH04211735A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9002988U DE9002988U1 (de) 1990-03-12 1990-03-12 Bauteil zur Aufnahme von Stoßenergien
DE9002988.7 1990-03-12

Publications (1)

Publication Number Publication Date
JPH04211735A true JPH04211735A (ja) 1992-08-03

Family

ID=6851955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3034113A Withdrawn JPH04211735A (ja) 1990-03-12 1991-02-28 衝撃エネルギーを吸収する部品

Country Status (5)

Country Link
US (1) US5236764A (ja)
EP (1) EP0446738B1 (ja)
JP (1) JPH04211735A (ja)
DE (2) DE9002988U1 (ja)
ES (1) ES2066246T3 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042859A1 (en) * 1996-05-16 1997-11-20 Weinstein James D Fluid-like foam support device
FR2781541B1 (fr) * 1998-07-22 2000-10-06 Gerard Grizot Coussin amortisseur et structure equipee d'un tel coussin
US20040241388A1 (en) * 2003-05-29 2004-12-02 Ray James Michael Rollbar padding
US7780195B2 (en) * 2006-08-28 2010-08-24 German Mark K Protective covers for truck cab guards
RU2344286C2 (ru) * 2006-12-28 2009-01-20 Шлюмберже Текнолоджи Б.В. Способ и устройство акустического мониторинга свойств пены и аэрированных жидкостей в реальном времени
EP2258603B1 (en) * 2009-06-01 2012-10-10 Autoliv Development AB Improvements in or relating to a steering wheel

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016317A (en) * 1957-06-21 1962-01-09 Brunner Emil Resilient mat
DE1238278B (de) * 1963-07-12 1967-04-06 Lemfoerder Kunststoff G M B H Federungskoerper aus offenzelligem elastischem Werkstoff
GB1449675A (en) * 1973-04-05 1976-09-15 Vita International Ltd Shock absorbing device
US4169179A (en) * 1977-10-07 1979-09-25 Bussey Harry Jun Spring-like loose fill packaging material
DE2853255A1 (de) * 1978-01-14 1979-07-19 Wedgedwood Dev Ltd Tonabnehmer-einrichtung
JPS5565615A (en) * 1978-11-13 1980-05-17 Bridgestone Corp Pneumatic fender
DE2853244A1 (de) * 1978-12-09 1980-06-19 Daimler Benz Ag Stossfaenger fuer kraftfahrzeuge
NL8006242A (nl) * 1980-11-14 1982-06-01 Bakker Rubber Bv Stootkussen, afdichting of dergelijke
SU1268451A1 (ru) * 1985-03-04 1986-11-07 Busarov Yurij P Бампер транспортного средства
DE3700854A1 (de) * 1986-01-24 1987-07-30 Ford Werke Ag Energieabsorbierende einrichtung an einer stossstange von kraftfahrzeugen
DE3626150A1 (de) * 1986-08-01 1988-02-18 Bayerische Motoren Werke Ag Stossfaenger fuer kraftfahrzeuge, insbesondere personenkraftwagen
DE8630181U1 (de) * 1986-11-11 1987-01-15 Gebr. Helbig GmbH & Co KG, 8480 Weiden Zusatzfeder für einen PKW-Stoßdämpfer
US4835034A (en) * 1987-07-06 1989-05-30 Cruz Francisco A Insulation board and composite sheet

Also Published As

Publication number Publication date
DE9002988U1 (de) 1990-05-23
ES2066246T3 (es) 1995-03-01
EP0446738B1 (de) 1994-12-14
DE59103836D1 (de) 1995-01-26
EP0446738A2 (de) 1991-09-18
EP0446738A3 (en) 1992-01-02
US5236764A (en) 1993-08-17

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Legal Events

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A300 Application deemed to be withdrawn because no request for examination was validly filed

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Effective date: 19980514