JPH0433654B2 - - Google Patents
Info
- Publication number
- JPH0433654B2 JPH0433654B2 JP58252114A JP25211483A JPH0433654B2 JP H0433654 B2 JPH0433654 B2 JP H0433654B2 JP 58252114 A JP58252114 A JP 58252114A JP 25211483 A JP25211483 A JP 25211483A JP H0433654 B2 JPH0433654 B2 JP H0433654B2
- Authority
- JP
- Japan
- Prior art keywords
- bumper
- skin member
- reinforcement member
- vertical wall
- absorber
- 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 - Lifetime
Links
- 230000002787 reinforcement Effects 0.000 claims description 16
- 239000006096 absorbing agent Substances 0.000 claims description 14
- 230000002745 absorbent Effects 0.000 claims description 8
- 239000002250 absorbent Substances 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002542 deteriorative effect Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、自動車のバンパ、特に衝撃吸収型の
バンパの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of an automobile bumper, particularly a shock-absorbing bumper.
一般に、自動車のバンパは、車体の前、後端部
に配設され、自動車の衝突時等に自動車に衝撃力
が加わつた場合、これを吸収して乗員の安全を確
保するとともに、車体が傷付くのを防止するため
のものである。そして近年、上記衝撃吸収能力を
向上できる衝撃吸収型バンパが製造されており、
この衝撃吸収型バンパとして、従来、実開昭56−
3046号公報に記載されているように、上面水平部
と縦壁面部とからなるレインフオースメント部材
の該両表面部に硬度の均一な吸収体を設け、さら
に該吸収体表面を表皮部材で覆つたものがあつ
た。
In general, car bumpers are placed at the front and rear ends of the car body, and when impact force is applied to the car during a car collision, they absorb this force to ensure the safety of the occupants and protect the car body from damage. This is to prevent it from sticking. In recent years, shock-absorbing bumpers that can improve the above-mentioned shock-absorbing ability have been manufactured.
As this shock-absorbing bumper, conventional
As described in Publication No. 3046, an absorbent body having uniform hardness is provided on both surfaces of a reinforcement member consisting of an upper horizontal portion and a vertical wall surface portion, and the surface of the absorbent body is further covered with a skin member. There was something hot.
ところで、上記衝撃力は上記吸収体の上面水平
部部分には、あまり作用しないものであるから、
該部分には本来吸収体を設ける必要はないもので
あり、従つて、上記従来のバンパでは必要以上に
吸収体が設けられていることとなり、その結果、
この従来例では、バンパの重量が大きいとともに
コストが高いという問題があつた。しかしながら
上記上面水平部部分に吸収体を設けない場合は、
今度は表皮部材の上面部が垂れてバンパの外観が
悪化してしまう問題が生じる。 By the way, since the above-mentioned impact force does not act much on the horizontal part of the upper surface of the above-mentioned absorber,
It is originally not necessary to provide an absorber in this part, and therefore, in the conventional bumper described above, more absorbers are provided than necessary, and as a result,
This conventional example has problems in that the weight of the bumper is large and the cost is high. However, if no absorber is provided in the horizontal part of the upper surface,
This time, a problem arises in that the upper surface of the skin member sag, deteriorating the appearance of the bumper.
本発明は、以上のような従来の問題点に鑑みて
なされたもので、バンパの外観が悪化することな
く重量を軽減でき、またコストも低減できる自動
車のバンパ構造を提供することを目的としてい
る。
The present invention has been made in view of the conventional problems as described above, and an object of the present invention is to provide an automobile bumper structure that can reduce the weight and cost without deteriorating the appearance of the bumper. .
本発明者は、上記目的を達成するために、レイ
ンフオースメント部材の上面水平部に設けられた
吸収体は、主として表皮部材の垂れを防止するた
め、即ち表皮部材の形状保持のためのものであ
り、その衝撃吸収力はそれほど必要ないものであ
る点に着目したものであり、そこで本発明は、自
動車のバンパ構造において、バンパを少なくとも
上面水平部及び縦壁面部を有するレインフオース
メント部材と、これを覆う表皮部材と、該両部材
間に設けられる吸収体とにより構成し、上記上面
水平部とその上方に位置する表皮部材との間に介
在し、下方から表皮部材を支持する吸収体に、縦
壁面部に設けられる吸収体に比べて発泡の倍率が
高い発泡体を用いるようにしたものであり、これ
により吸収体の各部分を目的に応じた衝撃吸収力
を有するように、従つて目的に応じた重量を有す
るようにしたものである。
In order to achieve the above object, the present inventor has proposed that the absorber provided on the upper horizontal part of the reinforcement member is mainly used to prevent the skin member from sagging, that is, to maintain the shape of the skin member. The present invention focuses on the fact that the impact absorption power is not so necessary, and therefore, the present invention provides a bumper structure for an automobile, in which the bumper is equipped with a reinforcement member having at least a horizontal upper surface portion and a vertical wall surface portion. It is composed of a skin member that covers this and an absorbent body provided between the two members, and the absorbent body is interposed between the upper surface horizontal part and the skin member located above it and supports the skin member from below. , a foam with a higher foaming ratio than the absorber provided on the vertical wall surface is used, so that each part of the absorber has a shock absorbing power suitable for the purpose. It is designed to have a weight depending on the purpose.
以下、本発明の実施例を図について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図及び第２図は本発明の一実施例を示し、
図において、自動車１の底部左、右には前後方向
に延びる左、右のフレーム（図示せず）が配設さ
れており、該フレームの前端面間には、フロント
バンパ２が架設されている。 1 and 2 show an embodiment of the present invention,
In the figure, left and right frames (not shown) extending in the front-rear direction are provided on the left and right sides of the bottom of an automobile 1, and a front bumper 2 is installed between the front end surfaces of the frames. .
上記フロントバンパ２は、レインフオースメン
ト部材３、表皮部材４及び吸収体５からなり、上
記レインフオースメント部材３は、上、下面水平
部３ａ，３ｂ及び縦壁面部３ｃからなる横断面コ
字状で車体幅方向に延び車幅と略同じ長さを有す
る棒状体である。そして該レインフオースメント
部材３の左、右端部には、車体取付部材である取
付ブラケツト６が設けられており、該取付ブラケ
ツト６は上記フレームに取付けられている。 The front bumper 2 consists of a reinforcement member 3, a skin member 4, and an absorbent body 5, and the reinforcement member 3 has a U-shaped cross section consisting of upper and lower horizontal parts 3a, 3b and a vertical wall part 3c. It is a rod-shaped body that extends in the vehicle width direction and has a length that is approximately the same as the vehicle width. Attachment brackets 6, which are vehicle body attachment members, are provided at the left and right ends of the reinforcement member 3, and the attachment brackets 6 are attached to the frame.
また、上記表皮部材４は、合成樹脂を用いて横
断面大略コ字状に形成されたもので、車体幅と略
同じ長さを有し、上記レインフオースメント部材
部材３を覆つて車体幅方向に配設されている。そ
して該表皮部材４の上面水平部４ａの端部は、該
自動車１のボデイ１ａにボルト締めされており、
また該表皮部材４の下面水平部４ｂの端部は、上
記レインフオースメント部材３の下面水平部３ｂ
に取付けられた取付ブラケツト７にボルト締めさ
れている。 The skin member 4 is formed of synthetic resin and has a substantially U-shaped cross section, has a length that is approximately the same as the width of the vehicle body, and covers the reinforcement member 3 in the width direction of the vehicle body. It is located in The end of the upper surface horizontal portion 4a of the skin member 4 is bolted to the body 1a of the automobile 1,
Further, the end portion of the lower surface horizontal portion 4b of the skin member 4 is connected to the lower surface horizontal portion 3b of the reinforcement member 3.
The mounting bracket 7 is bolted to the mounting bracket 7 attached to the mounting bracket 7.
そして上記吸収体５は、高硬度部５ａと低硬度
部５ｂとからなり、高硬度部５ａはレインフオー
スメント部材３の縦壁面部３ｃと表皮部材４との
間に、また、低硬度部５ｂはレインフオースメン
ト部材３の上面水平部３ａと表皮部材４との間に
配設されている。また上記低硬度部５ｂの下端面
には嵌合凹部５ｃが凹設されており、該嵌合凹部
５ｃには、上記高硬度部５ａの上端面に突設され
た嵌合凸部５ｄが挿入されている。 The absorbent body 5 is composed of a high hardness section 5a and a low hardness section 5b. is arranged between the upper surface horizontal portion 3a of the reinforcement member 3 and the skin member 4. Further, a fitting recess 5c is formed in the lower end surface of the low hardness section 5b, and a fitting convex section 5d protruding from the upper end surface of the high hardness section 5a is inserted into the fitting recess 5c. has been done.
上記高、低硬度部５ａ，５ｂは、各々ウレタ
ン、ポリエチレンあるいはポリプロピレンを異な
る倍率でもつて発泡せしめて形成したもので、高
硬度部５ａは10倍、低硬度部５ｂは30〜50倍に発
泡せしめたものであり、低硬度部５ｂは、高硬度
部５ａより軽くなつている。 The high and low hardness portions 5a and 5b are formed by foaming urethane, polyethylene, or polypropylene at different magnifications, with the high hardness portion 5a being 10 times the foam, and the low hardness portion 5b being 30 to 50 times the foam. The low hardness portion 5b is lighter than the high hardness portion 5a.
このように構成された本実施例のバンパでは、
レインフオースメント部材３の上面水平部３ａと
表皮部材４との間にも吸収体５が設けられている
ので、表皮部材４の上側部が垂れるのを防止で
き、外観が悪くなることはなく、そしてこの際、
上記上面水平部３ａと表皮部材４との間に設けら
れた低硬度部５ｂは他の部分より軽いものである
からバンパ２の重量を軽減できる。 In the bumper of this embodiment configured in this way,
Since the absorber 5 is also provided between the upper surface horizontal part 3a of the reinforcement member 3 and the skin member 4, the upper part of the skin member 4 can be prevented from sagging, and the appearance will not deteriorate. And at this time,
Since the low hardness portion 5b provided between the upper surface horizontal portion 3a and the skin member 4 is lighter than other portions, the weight of the bumper 2 can be reduced.
また、レインフオースメント部材３の縦壁面部
３ｃ前面には、硬度が高く吸収力の大きい高硬度
部５ａが配設されており、バンパ２の衝撃吸収力
は従来のものと同様である。 Further, a high-hardness section 5a having high hardness and large absorption capacity is provided on the front surface of the vertical wall surface section 3c of the reinforcement member 3, and the shock absorption capacity of the bumper 2 is similar to that of the conventional bumper.
なお、上記実施例では、高、低硬度部５ａ，５
ｂを別体に形成したが、該両部分を一体に形成し
てもよい。また上記実施例では、本発明をフロン
トバンパに適用した場合について説明したが、本
発明は勿論リヤバンパについても適用できるもの
である。 In addition, in the above embodiment, the high and low hardness parts 5a, 5
Although b is formed separately, the two parts may be formed integrally. Further, in the above embodiment, the case where the present invention is applied to a front bumper has been described, but the present invention can of course be applied to a rear bumper.
以上のように本発明に係る自動車のバンパ構造
によれば、レインフオースメント部材の上面水平
部とその上方に位置する表皮部材との間に介在
し、下方から表皮部材を支持する吸収体を、縦壁
面部に設けられる吸収体に比べて発泡の倍率が高
い発泡体を用いて形成したので、バンパの外観が
悪化することなく重量を軽減でき、コストを低減
できる効果がある。
As described above, according to the automobile bumper structure according to the present invention, the absorber is interposed between the upper surface horizontal part of the reinforcement member and the skin member located above it, and supports the skin member from below. Since the bumper is formed using a foam having a higher foaming ratio than the absorber provided on the vertical wall surface portion, the weight can be reduced without deteriorating the appearance of the bumper, and the cost can be reduced.
第１図は本発明の一実施例による自動車のバン
パ構造のバンパが取付けられた自動車の前部の斜
視図、第２図は上記実施例の断面側面図である。
１……自動車、２……バンパ、３……レインフ
オースメント部材、３ａ……上面水平部、３ｃ…
…縦壁面部、４……表皮部材、５……吸収体、５
ａ……吸収体の縦壁面部部分、５ｂ……吸収体の
上面水平部部分、６……車体取付部材。
FIG. 1 is a perspective view of the front part of an automobile to which a bumper of an automobile bumper structure according to an embodiment of the present invention is attached, and FIG. 2 is a sectional side view of the above embodiment. DESCRIPTION OF SYMBOLS 1...Automobile, 2...Bumper, 3...Reinforcement member, 3a...Top surface horizontal part, 3c...
... Vertical wall surface part, 4 ... Skin member, 5 ... Absorber, 5
a...Vertical wall surface portion of the absorber, 5b...Horizontal upper surface portion of the absorber, 6...Vehicle body mounting member.
Claims (1)
あつて、自動車バンパは、 車体幅方向に延び少なくとも上面水平部と縦壁
面部とから成り車体取付部材が設けられたレイン
フオースメント部材と、 該レインフオースメント部材を覆う合成樹脂製
の表皮部材と、 上記レインフオースメント部材と表皮部材との
間に設けられた吸収体とから構成されており、 上記レインフオースメント部材の上面水平部と
その上方に位置する表皮部材との間に介在し、下
方から表皮部材を支持する吸収体は縦壁面部の前
部に設けられる吸収体に比べ発泡の倍率が高い発
泡体からなることを特徴とする自動車のバンパ構
造。[Claims] 1. A bumper structure disposed at the front and rear of a vehicle body, wherein the automobile bumper extends in the width direction of the vehicle body and consists of at least a horizontal upper surface portion and a vertical wall surface portion, and is provided with a vehicle body mounting member. the reinforcement member, a skin member made of synthetic resin that covers the reinforcement member, and an absorbent body provided between the reinforcement member and the skin member; The absorbent body that is interposed between the upper horizontal part of the member and the skin member located above it and supports the skin member from below is a foam material that has a higher foaming ratio than the absorber provided in the front part of the vertical wall part. An automobile bumper structure characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25211483A JPS60143161A (en) | 1983-12-28 | 1983-12-28 | Bumper structure for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25211483A JPS60143161A (en) | 1983-12-28 | 1983-12-28 | Bumper structure for car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60143161A JPS60143161A (en) | 1985-07-29 |
| JPH0433654B2 true JPH0433654B2 (en) | 1992-06-03 |
Family
ID=17232669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25211483A Granted JPS60143161A (en) | 1983-12-28 | 1983-12-28 | Bumper structure for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60143161A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2189308T3 (en) * | 1999-04-24 | 2003-07-01 | Ford Global Tech Inc | BUMPER FOR VEHICLES WITH OPTIMAL MECHANICAL PROPERTIES TO IMPROVE THE PROTECTION OF PEDESTRIANS. |
| JP2002144988A (en) * | 2000-11-13 | 2002-05-22 | Fuji Heavy Ind Ltd | Bumper structure for automobile |
| JP2004196156A (en) * | 2002-12-19 | 2004-07-15 | Calsonic Kansei Corp | Vehicle body front structure of automobile |
| JP5833905B2 (en) * | 2011-12-09 | 2015-12-16 | トヨタ紡織株式会社 | Vehicle door trim |
| DE102019108742A1 (en) * | 2019-04-03 | 2020-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Energy absorption device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS563046B2 (en) * | 1977-03-12 | 1981-01-22 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5853241Y2 (en) * | 1979-06-21 | 1983-12-03 | トヨタ自動車株式会社 | Shock absorbing urethane bumper |
-
1983
- 1983-12-28 JP JP25211483A patent/JPS60143161A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS563046B2 (en) * | 1977-03-12 | 1981-01-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60143161A (en) | 1985-07-29 |
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