JPH07187008A - Impact absorbing structure of automobile roof - Google Patents
Impact absorbing structure of automobile roofInfo
- Publication number
- JPH07187008A JPH07187008A JP5347408A JP34740893A JPH07187008A JP H07187008 A JPH07187008 A JP H07187008A JP 5347408 A JP5347408 A JP 5347408A JP 34740893 A JP34740893 A JP 34740893A JP H07187008 A JPH07187008 A JP H07187008A
- Authority
- JP
- Japan
- Prior art keywords
- ceiling
- roof
- lining material
- cushioning element
- automobile
- 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.)
- Pending
Links
Landscapes
- Body Structure For Vehicles (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は自動車天井の衝撃吸収
構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing structure for an automobile ceiling.
【０００２】[0002]
【従来の技術】従来、図４およびその５−５切断面を示
す図５のように、自動車Ｃの天井５０としては、車体外
板５２と天井内板５３とからなる天井構造材５１の車内
側にファブリックなどの天井内張り材５４を貼着したも
のが知られている。前記車体外板５２と天井内板５３と
しては、耐衝撃性の点から主に鋼板材料が用いられる。
また、天井内張り材５４としては、車外との断熱および
遮音そして車内の吸音を目的として、塩化ビニールシー
トやファブリックシートなどが前記天井構造材５１の車
内側に吊るされるか、あるいは前記シート材の内側に、
熱可塑性または熱硬化性樹脂材料を一体に成形した成形
天井が天井構造材５１に取り付けられる。2. Description of the Related Art Conventionally, as shown in FIG. 4 and FIG. 5 showing a section 5-5 thereof, as a ceiling 50 of a vehicle C, a vehicle having a ceiling structural member 51 consisting of a vehicle body outer plate 52 and a ceiling inner plate 53 is used. It is known that a ceiling lining material 54 such as a fabric is attached to the inside. For the vehicle body outer plate 52 and the ceiling inner plate 53, steel plate materials are mainly used from the viewpoint of impact resistance.
As the ceiling lining material 54, a vinyl chloride sheet, a fabric sheet, or the like is hung on the inside of the ceiling structure material 51 for the purpose of heat insulation and sound insulation from the outside of the vehicle and sound absorption inside the vehicle, or inside the sheet material. To
A molded ceiling integrally formed of a thermoplastic or thermosetting resin material is attached to the ceiling structure material 51.
【０００３】ところで、新しく車両室内頭部保護規制Ｆ
ＭＶＳＳ−２０１が基準化され、車体衝突時あるいは車
体横転時に、乗員の頭部が衝突する可能性のある自動車
の天井側部にも、衝撃エネルギーを吸収する機能が要求
されるようになった、しかしながら、図４の鎖線で示さ
れる、あるいは図５に示される天井側部Ｓは、車両強度
を上げるために高い剛性が要求される部位であり、しか
も、従来にあっては頭部保護のための衝撃吸収構造とな
っていなかった。そのため、この衝撃から乗員を保護す
るための高い衝撃エネルギー吸収能力が要求されてい
る。By the way, a new vehicle interior head protection regulation F
The MVSS-201 has been standardized, and a function of absorbing impact energy has come to be required even on the side of the ceiling of an automobile where the head of an occupant may collide during a vehicle collision or a vehicle rollover. However, the ceiling side portion S shown by the chain line in FIG. 4 or shown in FIG. 5 is a portion that requires high rigidity in order to increase the vehicle strength, and in the conventional case, it is for head protection. It did not have a shock absorption structure. Therefore, a high impact energy absorption capacity for protecting the occupant from this impact is required.
【０００４】[0004]
【発明が解決しようとする課題】この発明はこのような
問題を解決するため、衝撃エネルギーの吸収能力の高い
自動車天井の構造を提供しようとするものである。SUMMARY OF THE INVENTION In order to solve such a problem, the present invention intends to provide a structure of an automobile ceiling having a high impact energy absorption capacity.
【０００５】[0005]
【課題を解決するための手段】すなわち、この発明は、
自動車の天井構造材の車内側にファブリック等の天井内
張り材を張った自動車天井において、天井の側部に位置
する前記天井内張り材と天井構造材間に緩衝体を介在さ
せたことを特徴とする自動車天井の衝撃吸収構造に係
る。That is, the present invention is
In an automobile ceiling in which a ceiling lining material such as a fabric is laid on the inside of an automobile ceiling structure material, a cushioning body is interposed between the ceiling lining material located on a side portion of the ceiling and the ceiling structure material. It is related to the shock absorption structure of the automobile ceiling.
【０００６】[0006]
【実施例】以下添付の図面に従ってこの発明を詳細に説
明する。図１はこの発明の衝撃吸収構造の一例を示す自
動車天井の断面図、図２はその他の例を示す断面図、図
３はこの発明の構造の作動を示す断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. 1 is a sectional view of an automobile ceiling showing an example of the shock absorbing structure of the present invention, FIG. 2 is a sectional view showing another example, and FIG. 3 is a sectional view showing the operation of the structure of the present invention.
【０００７】図１にこの発明の衝撃吸収構造が設けられ
た側部窓ガラスＷ側の自動車天井を示す。この自動車天
井１０は、前記したような車体外板１２と天井内板１３
とからなる天井構造材１１の車内側に天井内張り材１４
が張設され、前記天井構造材１１と天井内張り材１４と
の間には緩衝体１５を介在させている。符号Ｍはウイン
ドモールディングである。FIG. 1 shows a vehicle ceiling on the side window glass W side provided with the shock absorbing structure of the present invention. The vehicle ceiling 10 includes a vehicle body outer plate 12 and a ceiling inner plate 13 as described above.
Ceiling structure material 11 consisting of
And a cushioning member 15 is interposed between the ceiling structure material 11 and the ceiling lining material 14. The symbol M is a wind molding.
【０００８】緩衝体１５は前記車室内からの衝撃を吸収
するためのもので、前記天井構造材１１と天井内張り材
１４との間の隙間１６に沿って収まる略直方体形状に形
成されている。この緩衝体１５には、硬質ウレタン発泡
体、半硬質ウレタン発泡体、発泡スチロール、発泡ポリ
プロピレンなどの発泡体の他、熱可塑性樹脂から射出成
形または中空成形された中空の成形品などが好適に用い
られる。また、衝撃を効率よく吸収するために、前記緩
衝体１５の形状は、前記隙間１６を充たす形状に形成さ
れることが好ましい。The cushioning body 15 is for absorbing a shock from the vehicle compartment, and is formed in a substantially rectangular parallelepiped shape that fits along a gap 16 between the ceiling structure material 11 and the ceiling lining material 14. As the buffer 15, a foamed material such as a hard urethane foam, a semi-rigid urethane foam, styrofoam, and polypropylene, as well as a hollow molded article injection-molded or hollow-molded from a thermoplastic resin is preferably used. . Further, in order to absorb the shock efficiently, it is preferable that the shape of the buffer body 15 is formed to fill the gap 16.
【０００９】緩衝体１５に硬質または半硬質ウレタン発
泡体を用いる場合には、密度０．０１〜０．４ｇ／ｃｍ
3 、圧縮硬さ１〜２０ｋｇ／ｃｍ2 、厚み５〜５０ｍｍ
程度のものが好適である。なお、ここで述べる圧縮硬さ
は、ＪＩＳ Ｋ７２２０による５０％圧縮歪み時の硬さ
を示す。また、前記緩衝体１５に発泡スチロールや発泡
ポリプロピレンなどの発泡ビーズ成形品を用いる場合に
は、密度０．０２〜０．１ｇ／ｃｍ3 、圧縮硬さ０．５
〜１５ｋｇ／ｃｍ2 、厚み５〜５０ｍｍ程度のものが好
適である。さらに、前記緩衝体１５を射出成形または中
空成形により成形される中空の成形品とする場合には、
ＡＢＳ樹脂、ポリプロピレン樹脂、ポリカーボネート樹
脂、ポリエチレンテレフタレート樹脂などの熱可塑性樹
脂によって前記隙間１６を充たす形状にされる。なお、
中空にした成形品の強度を補うとともにその衝撃吸収性
を高めるため、適宜のリブなどを前記中空の成形品内に
設けてもよい。When a rigid or semi-rigid urethane foam is used for the buffer 15, the density is 0.01 to 0.4 g / cm.
3 , compression hardness 1-20kg / cm 2 , thickness 5-50mm
The thing of a grade is suitable. The compression hardness described here indicates the hardness at 50% compression strain according to JIS K7220. When a foamed bead molded product such as expanded polystyrene or expanded polypropylene is used for the buffer body 15, the density is 0.02 to 0.1 g / cm 3 , and the compression hardness is 0.5.
Those having a thickness of about 15 kg / cm 2 and a thickness of about 5 to 50 mm are suitable. Further, when the buffer body 15 is a hollow molded product molded by injection molding or hollow molding,
The gap 16 is filled with a thermoplastic resin such as ABS resin, polypropylene resin, polycarbonate resin, or polyethylene terephthalate resin. In addition,
Appropriate ribs and the like may be provided in the hollow molded product in order to supplement the strength of the hollow molded product and to enhance its shock absorption.
【００１０】前記緩衝体１５を設置する部位としては、
図４において鎖線で示した自動車天井の側部Ｓとされ
る。このような天井側部Ｓは、衝突などによって車体が
横転した場合に乗員の頭部と当りやすい部位である一
方、車両強度を上げるために高い剛性が要求される部位
でもある。したがって、万一衝突した場合には、前記の
ように頭部への衝撃力を緩和する構造が必要となるから
である。As a portion where the buffer 15 is installed,
It is a side portion S of the automobile ceiling shown by a chain line in FIG. Such a ceiling side portion S is a portion that is easily hit by the occupant's head when the vehicle body rolls over due to a collision or the like, and is also a portion that requires high rigidity to increase the strength of the vehicle. Therefore, in the event of a collision, it is necessary to have a structure for relaxing the impact force on the head as described above.
【００１１】前記緩衝体１５は、図示されるように、前
記天井内板１３に接着材１７によって貼着され、当該天
井内板１３と天井内張り材１４との間の隙間１６に設け
られる。なお、この緩衝体１５は、天井内張り材１４側
に接着したり、隙間１６にそのまま嵌め込んでもよい。As shown in the figure, the buffer 15 is attached to the ceiling inner plate 13 with an adhesive 17, and is provided in a gap 16 between the ceiling inner plate 13 and the ceiling lining material 14. The cushioning body 15 may be adhered to the ceiling lining material 14 side or may be fitted in the gap 16 as it is.
【００１２】また、図２はこの発明の構造の他の例を示
したものである。符号２０は自動車天井、２１は天井構
造材、２２は車体外板、２３は天井内板、２４は天井内
張り材、２５は緩衝体である。この例において、前記緩
衝体２５の天井構造材２１側にはバネクリップ２６が取
り付けられており、前記バネクリップ２６を天井構造材
２１に係着することによって取り付けられる。前記バネ
クリップ２６は金属またはプラスチックなどからなり、
前記緩衝体２５の所定位置に接着固定されるかあるい
は、緩衝体の製造時に型内にインサートとして配され一
体に成形される。なお、符号２７は前記天井内板２３の
所定位置に設けられた、クリップ係着のための孔であ
る。FIG. 2 shows another example of the structure of the present invention. Reference numeral 20 is an automobile ceiling, 21 is a ceiling structure material, 22 is a vehicle body outer plate, 23 is a ceiling inner plate, 24 is a ceiling lining material, and 25 is a buffer. In this example, a spring clip 26 is attached to the ceiling structure 21 side of the buffer 25, and is attached by engaging the spring clip 26 with the ceiling structure 21. The spring clip 26 is made of metal or plastic,
It is fixed to a predetermined position of the buffer body 25 by adhesion, or is disposed as an insert in a mold and integrally molded when the buffer body is manufactured. Reference numeral 27 is a hole provided at a predetermined position of the ceiling inner plate 23 for clip attachment.
【００１３】図３にこの発明の構造によって衝撃が吸収
される状態を示す。車室外からの衝撃エネルギーによっ
て、車室内の乗員の頭部は図の（Ａ）の矢印のように、
天井内張り材１４に衝突する。その際、図の（Ｂ）のよ
うに、その衝撃力が天井内張り材１４を介して緩衝体１
５に伝わる。前記緩衝体１５はこの衝撃力によって弾性
変形または脆性破壊あるいは塑性変形し、そのエネルギ
ーを極めて効率よく吸収緩和して乗客を安全に保護す
る。FIG. 3 shows a state in which a shock is absorbed by the structure of the present invention. Due to the impact energy from the outside of the passenger compartment, the head of the passenger inside the passenger compartment is as shown by the arrow (A) in the figure.
It collides with the ceiling lining material 14. At that time, as shown in FIG. 2B, the impact force is applied to the cushioning body 1 via the ceiling lining material 14.
It is transmitted to 5. The shock absorber 15 elastically or brittlely fractures or plastically deforms due to the impact force, absorbs and relaxes the energy very efficiently, and safely protects passengers.
【００１４】[0014]
【発明の効果】以上図示し説明したように、この発明の
自動車天井の衝撃吸収構造によれば、従来、特に頭部保
護用の衝撃吸収構造となっていなかった天井側部におい
て、天井構造材と天井内張り材との間に緩衝体を介在さ
せたため、その緩衝体によって衝突の際の衝撃力を確実
かつ効率的に吸収緩和することができる。As shown and described above, according to the shock absorbing structure for an automobile ceiling of the present invention, a ceiling structural material is conventionally used, especially on the side of the ceiling where the shock absorbing structure is not provided for head protection. Since the cushioning body is interposed between the ceiling lining material and the ceiling lining material, the cushioning body can reliably and efficiently absorb and relax the impact force at the time of collision.
【図１】この発明の衝撃吸収構造の一例を示す自動車天
井の断面図である。FIG. 1 is a sectional view of an automobile ceiling showing an example of a shock absorbing structure of the present invention.
【図２】その他の例を示す断面図である。FIG. 2 is a cross-sectional view showing another example.
【図３】この発明の構造の作動を示す断面図である。FIG. 3 is a sectional view showing the operation of the structure of the present invention.
【図４】従来の自動車の一例を示す斜視図である。FIG. 4 is a perspective view showing an example of a conventional automobile.
【図５】従来の自動車の天井部について、図４の５−５
線で切断した断面図である。[Fig. 5] Fig. 5 is a top view of a conventional automobile ceiling part.
It is sectional drawing cut | disconnected by the line.
１０ 自動車天井 １１ 天井構造材 １２ 車体外板 １３ 天井内板 １４ 天井内張り材 １５ 緩衝体 Ｍ ウインドモールディング Ｓ 天井の側部 Ｗ 窓ガラス 10 Automotive Ceiling 11 Ceiling Structural Material 12 Car Body Outer Panel 13 Ceiling Inner Panel 14 Ceiling Lining Material 15 Buffer M Wind Molding S Ceiling Side W Window Glass
───────────────────────────────────────────────────── フロントページの続き (72)発明者 水谷 文彦 愛知県安城市今池町３−１−36 株式会社 イノアックコーポレーション安城事業所内 (72)発明者 内藤 秀樹 愛知県安城市今池町３−１−36 株式会社 イノアックコーポレーション安城事業所内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Fumihiko Mizutani 3-1-6 Imaikecho, Anjo City, Aichi Prefecture Inoac Corporation Anjo Office (72) Inventor Hideki Naito 3-1-36 Imaikecho, Anjo City, Aichi Prefecture Inoac Corporation, Anjo Office
Claims (1)
ック等の天井内張り材を張った自動車天井において、天
井の側部に位置する前記天井内張り材と天井構造材間に
緩衝体を介在させたことを特徴とする自動車天井の衝撃
吸収構造。1. In an automobile ceiling in which a ceiling lining material such as a fabric is laid on the inside of a vehicle ceiling structure material, a cushioning body is interposed between the ceiling lining material located on the side of the ceiling and the ceiling structure material. A shock-absorbing structure for the automobile ceiling, which is characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5347408A JPH07187008A (en) | 1993-12-24 | 1993-12-24 | Impact absorbing structure of automobile roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5347408A JPH07187008A (en) | 1993-12-24 | 1993-12-24 | Impact absorbing structure of automobile roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07187008A true JPH07187008A (en) | 1995-07-25 |
Family
ID=18390022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5347408A Pending JPH07187008A (en) | 1993-12-24 | 1993-12-24 | Impact absorbing structure of automobile roof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07187008A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0841221A1 (en) * | 1996-11-07 | 1998-05-13 | Toyota Jidosha Kabushiki Kaisha | Structure for arrangement of occupant protective apparatus for vehicle |
| US6027161A (en) * | 1996-01-11 | 2000-02-22 | Toyota Jidosha Kabushiki Kaisha | Passenger protecting structure of vehicle body upper portion of automobile |
| US6517144B2 (en) | 2000-05-17 | 2003-02-11 | Toyota Jidosha Kabushiki Kaisha | Upper body structure of motor vehicle |
| JP2012086595A (en) * | 2010-10-15 | 2012-05-10 | Daihatsu Motor Co Ltd | Vehicle body upper structure |
| CN107922008A (en) * | 2015-08-17 | 2018-04-17 | 马自达汽车株式会社 | The body structure of vehicle |
| EP3840930B1 (en) * | 2018-08-22 | 2023-05-17 | Hutchinson | 3d thermoformed element |
-
1993
- 1993-12-24 JP JP5347408A patent/JPH07187008A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6027161A (en) * | 1996-01-11 | 2000-02-22 | Toyota Jidosha Kabushiki Kaisha | Passenger protecting structure of vehicle body upper portion of automobile |
| EP0841221A1 (en) * | 1996-11-07 | 1998-05-13 | Toyota Jidosha Kabushiki Kaisha | Structure for arrangement of occupant protective apparatus for vehicle |
| US6079732A (en) * | 1996-11-07 | 2000-06-27 | Toyota Jidosha Kabushiki Kaisha | Structure for arrangement of occupant protective apparatus for vehicle |
| US6517144B2 (en) | 2000-05-17 | 2003-02-11 | Toyota Jidosha Kabushiki Kaisha | Upper body structure of motor vehicle |
| JP2012086595A (en) * | 2010-10-15 | 2012-05-10 | Daihatsu Motor Co Ltd | Vehicle body upper structure |
| CN107922008A (en) * | 2015-08-17 | 2018-04-17 | 马自达汽车株式会社 | The body structure of vehicle |
| CN107922008B (en) * | 2015-08-17 | 2021-03-30 | 马自达汽车株式会社 | Vehicle body structure of vehicle |
| EP3840930B1 (en) * | 2018-08-22 | 2023-05-17 | Hutchinson | 3d thermoformed element |
| US11858431B2 (en) | 2018-08-22 | 2024-01-02 | Hutchinson | 3D thermoformed element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0841221B1 (en) | Structure for arrangement of occupant protective apparatus for vehicle | |
| US5382051A (en) | Pneumatic pads for the interior of vehicles | |
| US6234526B1 (en) | Head impact protection using fluid viscosity | |
| US3989275A (en) | Interior energy absorbing means for vehicles | |
| US4072334A (en) | Energy absorbing bumper | |
| US3638992A (en) | Auto and aircraft safety liners | |
| RU2009136984A (en) | SAFETY FOR PEDESTRIAN A CAR HOOD CONTAINING REINFORCING FOAM | |
| JPH07187008A (en) | Impact absorbing structure of automobile roof | |
| US20030111879A1 (en) | Safety seat | |
| KR200431297Y1 (en) | Air cushion guard for an automobile | |
| JP2003118460A (en) | Automobile floor spacer | |
| JP2914595B2 (en) | Shock absorbing structure on the side of the vehicle | |
| JP2978083B2 (en) | Vehicle interior parts | |
| JPH05131888A (en) | Storage cover body for automobile air bag device and manufacture thereof | |
| JP2914598B2 (en) | Car door trim | |
| JP2004519376A (en) | Vehicle interior panel with modified shape that can be deformed by impact | |
| JP3320213B2 (en) | Impact energy absorbing structure in the vehicle interior | |
| JP3121952B2 (en) | Shock absorbing structure on the side of the vehicle | |
| JP4021928B2 (en) | Shock absorber for automobile floor spacer | |
| JPS6335006Y2 (en) | ||
| KR100483789B1 (en) | Side impact absorbing means of automobile | |
| JPH0872642A (en) | In-cabin impact energy absorbing structure | |
| JPH072029A (en) | Shock absorbing interior finish member for automobile | |
| JPH0976862A (en) | Air bag housing container and mounting structure for vehicle interior side member | |
| JP2000301997A (en) | Roof side inner portion |