JP2513532Y2 - Resin bumper - Google Patents
Resin bumperInfo
- Publication number
- JP2513532Y2 JP2513532Y2 JP1990059105U JP5910590U JP2513532Y2 JP 2513532 Y2 JP2513532 Y2 JP 2513532Y2 JP 1990059105 U JP1990059105 U JP 1990059105U JP 5910590 U JP5910590 U JP 5910590U JP 2513532 Y2 JP2513532 Y2 JP 2513532Y2
- Authority
- JP
- Japan
- Prior art keywords
- wall portion
- rib
- bumper
- lower wall
- side wall
- 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
Landscapes
- Connection Of Plates (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】 a.産業上の利用分野 本考案は樹脂バンパーに関する。[Detailed Description of the Invention] a. Industrial Application Field The present invention relates to a resin bumper.
b.従来の技術 近年、自動車のバンパーに樹脂製のものを使用してい
る。第４図はこのようなバンパーの一例を示すものであ
る。このバンパーａは、側壁部ｂの裏面にリブｃを設け
て剛性を高めている。b. Conventional Technology In recent years, resin bumpers have been used. FIG. 4 shows an example of such a bumper. The bumper a is provided with a rib c on the back surface of the side wall portion b to enhance rigidity.
c.考案が解決しようとする課題 しかし、このようなリブｃを設けると、リブｃと側壁
部ｂとが交わる部分に肉厚部が生じ、樹脂材料が冷却固
化する際、側壁部ｂの冷却が均一に行なわれなくなるこ
とから、側壁部ｂの表面に第５図に示すようなヒケｄが
発生し、またそのため光沢のむらを生じさせるという問
題があった。c. Problem to be Solved by the Invention However, when such a rib c is provided, a thick portion is generated at a portion where the rib c and the side wall portion b intersect, and when the resin material is cooled and solidified, the side wall portion b is cooled. Therefore, there is a problem in that sink marks d are generated on the surface of the side wall portion b as shown in FIG. 5 and uneven glossiness is caused.
一方、ヒケを防ぐため可能な限り薄肉とすると、目的
とする剛性効果が充分得られず、また第６図に示すよう
にリブｃの基部を薄肉にすると、ヒケの発生を防止する
効果はある程度期待できるものの、金型の構造が複雑に
なり、金型の故障など生産時のトラブルが発生し易くな
る。このため、メンテナンスや型費用がかゝりコスト高
となるという問題があった。On the other hand, if the wall thickness is made as thin as possible in order to prevent sink marks, the desired rigidity effect cannot be obtained sufficiently, and if the base part of the rib c is made thin as shown in FIG. 6, there is some effect of preventing sink marks. Although it can be expected, the structure of the mold becomes complicated, and troubles at the time of production such as failure of the mold easily occur. For this reason, there has been a problem that maintenance and mold costs are high and the cost is high.
本考案はこのような事情に鑑みてなされたもので、そ
の目的とするところは、ヒケが生じる虞れのない樹脂バ
ンパーを提供することにある。The present invention has been made in view of such circumstances, and an object of the present invention is to provide a resin bumper that is free from the risk of sink marks.
d.課題を解決するための手段 本考案の特徴とするところは、側壁部の上下に上壁部
と下壁部を設けて略コ字上に形成し、上記側壁部の内側
に長手方向に一定間隔をおいて複数のリブを設けた樹脂
製のバンパーにおいて、上記上壁部と下壁部の開口端縁
内面の互いに対向する位置に、蟻溝形のテーパー状の係
合溝をバンパー本体の長手方向に所定間隔で形成し、上
記上壁部または下壁部の一方の開口端縁の上記係合溝に
対応する位置にフイルム状の連結部を介して角柱状のリ
ブ部を延設し、該リブ部の両端に、上記係合溝に合致す
るテーパ部を形成するとともに、上記連結部の幅を開口
端縁部の幅と略等しく形成し、上記リブ部を連結部を中
心に回転させて上記係合溝に組み合わせたことにある。d. Means for Solving the Problems A feature of the present invention is that upper and lower wall portions are provided above and below the side wall portion to form a substantially U-shape, and the side wall portion is formed in the longitudinal direction in the longitudinal direction. In a resin bumper provided with a plurality of ribs at regular intervals, a dovetail-shaped tapered engagement groove is provided at a position facing each other on inner surfaces of opening edges of the upper wall portion and the lower wall portion. Are formed at predetermined intervals in the longitudinal direction of the prism, and a prismatic rib portion is extended through a film-shaped connecting portion at a position corresponding to the engaging groove on one opening edge of the upper wall portion or the lower wall portion. Then, at both ends of the rib portion, taper portions that match the engagement groove are formed, and the width of the connecting portion is formed to be substantially equal to the width of the opening edge portion, and the rib portion is centered on the connecting portion. It is rotated and combined with the engaging groove.
e.実施例 以下、本考案の一実施例を添付図面を参照しながら詳
細に説明する。e. Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.
第１図において、１は本考案の樹脂バンパーを示す。 In FIG. 1, reference numeral 1 denotes a resin bumper of the present invention.
このバンパー１は上壁部２、側壁部３、下壁部４から
なり、側壁部３の上部に上壁部２を、側壁部３の下部に
下壁部４を設けて略コ字状に形成している。上壁部２の
端縁からフィルム状の連結部５を介して角柱状のリブ部
６を外方へ延出させてある。そして、このリブ部６を上
壁部２の端縁に、長手方向に所定間隔をおいて複数個延
設してある。上壁部２の内面には、矩形の係合溝７が上
記各連結部５と隣接させて形成してあり、下壁部４の内
面で、これら係合溝７と対向する個所にも同様の係合溝
７を形成してある。この係合溝７は詳しくは第２図に示
すように底面7aが蟻溝形のテーパーをなすもので、これ
と対応してリブ部６の両端面6aにテーパーを設けてい
る。The bumper 1 is composed of an upper wall portion 2, a side wall portion 3, and a lower wall portion 4, and an upper wall portion 2 is provided on an upper portion of the side wall portion 3 and a lower wall portion 4 is provided on a lower portion of the side wall portion 3 to have a substantially U-shape. Is forming. A prismatic rib portion 6 is extended outward from the edge of the upper wall portion 2 through a film-shaped connecting portion 5. A plurality of rib portions 6 are provided on the edge of the upper wall portion 2 at predetermined intervals in the longitudinal direction. A rectangular engaging groove 7 is formed on the inner surface of the upper wall portion 2 so as to be adjacent to each of the connecting portions 5, and the same applies to the inner surface of the lower wall portion 4 facing these engaging grooves 7. Is formed with the engaging groove 7. More specifically, as shown in FIG. 2, the engagement groove 7 has a bottom surface 7a having a dovetail-shaped taper, and correspondingly, both end surfaces 6a of the rib portion 6 are tapered.
上記連結部５の幅Ａを開口端縁部の幅Ａ′と略等しく
形成している。The width A of the connecting portion 5 is formed to be substantially equal to the width A'of the opening edge portion.
上記各リブ部６は、成形後、連結部５と上壁部２の境
界部分を支点として図中矢印Ｃ方向に回転して、その両
端をそれぞれの係合溝７に嵌合させてある。なお、この
リブ部６の両端を接着や超音波溶着などの方法で固着し
ておくのが好ましい。リブ部６の形状や間隔は、要求さ
れるバンパー１の剛性を考慮して適宜決めればよい。After molding, each rib portion 6 rotates in the direction of arrow C in the drawing with the boundary portion between the connecting portion 5 and the upper wall portion 2 as a fulcrum, and both ends thereof are fitted into the respective engaging grooves 7. It is preferable that both ends of the rib portion 6 be fixed by a method such as adhesion or ultrasonic welding. The shape and interval of the rib portion 6 may be appropriately determined in consideration of the required rigidity of the bumper 1.
なお本実施例では、連結部５はフィルム状に形成して
あるが、その肉厚をもう少し厚くし、その中間部が折曲
がるようにしてもよい。In this embodiment, the connecting portion 5 is formed in a film shape, but the connecting portion 5 may be made slightly thicker and the middle portion thereof may be bent.
また、下壁部４の端縁から連結部５を介してリブ部６
を延出させるようにしてもよい。In addition, the rib portion 6 is formed from the edge of the lower wall portion 4 via the connecting portion 5.
May be extended.
f.考案の効果 本考案によれば、側壁部の裏面にリブが突設されなく
なるので、側壁部の表面にヒケが生じる虞れが全くなく
なり、品質の向上に役立たせることができる。f. Effect of the Invention According to the present invention, since the rib is not provided on the back surface of the side wall portion, there is no possibility of sink marks on the surface of the side wall portion, and it is possible to improve the quality.
さらに、リブ部はバンパー本体と一体成形することが
できるので、成形コストの上昇は殆んどない。そして、
型構造もそれ程複雑にならず、メンテナンスも比較的容
易である。Furthermore, since the rib portion can be integrally formed with the bumper body, the molding cost hardly increases. And
The mold structure is not so complicated and maintenance is relatively easy.
またバンパーの剛性は、リブ部の形状や配置を変更す
ることで自由に決定できることから、補強対称が容易に
なるという効果もある。Further, since the rigidity of the bumper can be freely determined by changing the shape and arrangement of the rib portion, there is also an effect that reinforcement symmetry becomes easy.
またさらに、連結部の幅を開口端縁部の幅と略等しく
形成し、リブ部の反転を容易に行うことができる。Furthermore, the width of the connecting portion is formed to be substantially equal to the width of the opening edge portion, so that the rib portion can be easily inverted.
また、上壁部と下壁部の開口端縁内面の互いに対向す
る位置に、蟻溝形のテーパー状の係合溝をバンパー本体
の長手方向に所定間隔で形成し、リブ部の両端に、上記
係合溝に合致するテーパ部を形成したので、リブ部は上
壁部と下壁部間を強固に連結する。Further, dovetail-shaped tapered engagement grooves are formed at predetermined intervals in the longitudinal direction of the bumper body at positions facing each other on the inner surfaces of the opening edge edges of the upper wall portion and the lower wall portion, and at both ends of the rib portion. Since the taper portion that matches the engagement groove is formed, the rib portion firmly connects the upper wall portion and the lower wall portion.
さらに、リブ部は角柱状に形成されているので、バン
パー全体が高剛性となる。Furthermore, since the rib portion is formed in a prismatic shape, the entire bumper has high rigidity.
第１図は本考案に係る樹脂バンパーを裏面側から見た斜
視図、第２図は第１図に示したＡ−Ａ線による断面図、
第３図は第２図のリブ部をバンパー本体に組付けた場合
の図、第４図は第１図と対応する従来例を示す図、第５
図は第４図に示したＢ−Ｂ線による断面図、第６図は第
５図と対応する他の従来例を示す図である。 １……樹脂バンパー、２……上壁部、３……側壁部、４
……下壁部、５……連結部、６……リブ部、6a……リブ
部の端面、７……係合溝、7a……係合溝の底面。FIG. 1 is a perspective view of a resin bumper according to the present invention seen from the back side, and FIG. 2 is a sectional view taken along the line AA shown in FIG.
FIG. 3 is a view when the rib portion of FIG. 2 is assembled to the bumper body, FIG. 4 is a view showing a conventional example corresponding to FIG. 1, and FIG.
FIG. 6 is a sectional view taken along line BB shown in FIG. 4, and FIG. 6 is a view showing another conventional example corresponding to FIG. 1 ... Resin bumper, 2 ... Upper wall part, 3 ... Side wall part, 4
...... Lower wall part, 5 ...... connecting part, 6 ...... rib part, 6a ...... end face of rib part, 7 ...... engaging groove, 7a ...... bottom of engaging groove.
Claims (1)
コ字上に形成し、上記側壁部の内側に長手方向に一定間
隔をおいて複数のリブを設けた樹脂製のバンパーにおい
て、上記上壁部と下壁部の開口端縁内面の互いに対向す
る位置に、蟻溝形のテーパー状の係合溝をバンパー本体
の長手方向に所定間隔で形成し、上記上壁部または下壁
部の一方の開口端縁の上記係合溝に対応する位置にフイ
ルム状の連結部を介して角柱状のリブ部を延設し、該リ
ブ部の両端に、上記係合溝に合致するテーパ部を形成す
るとともに、上記連結部の幅を開口端縁部の幅と略等し
く形成し、上記リブ部を連結部を中心に回転させて上記
係合溝に組み合わせたことを特徴とする樹脂バンパー。1. A resin member having upper and lower wall portions above and below the side wall portion and formed in a substantially U shape, and provided with a plurality of ribs inside the side wall portion at regular intervals in the longitudinal direction. In the bumper, the dovetail-shaped tapered engagement grooves are formed at predetermined intervals in the longitudinal direction of the bumper body at positions facing each other on the inner surfaces of the opening edge edges of the upper wall portion and the lower wall portion. Section or the lower wall portion has a prismatic rib portion extending at a position corresponding to the engaging groove on one opening edge thereof through a film-like connecting portion, and the engaging groove is provided on both ends of the rib portion. And the width of the connecting portion is formed to be substantially equal to the width of the opening edge portion, and the rib portion is rotated around the connecting portion to be combined with the engaging groove. And resin bumper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990059105U JP2513532Y2 (en) | 1990-06-04 | 1990-06-04 | Resin bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990059105U JP2513532Y2 (en) | 1990-06-04 | 1990-06-04 | Resin bumper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0418052U JPH0418052U (en) | 1992-02-14 |
| JP2513532Y2 true JP2513532Y2 (en) | 1996-10-09 |
Family
ID=31585315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990059105U Expired - Lifetime JP2513532Y2 (en) | 1990-06-04 | 1990-06-04 | Resin bumper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513532Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008097834A1 (en) * | 2007-02-02 | 2008-08-14 | Netshape Energy Management, Llc | Energy absorber with crush boxes and back straps |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157953U (en) * | 1983-04-09 | 1984-10-23 | ダイハツ工業株式会社 | resin bumper |
| JPS6252052U (en) * | 1985-09-20 | 1987-03-31 |
-
1990
- 1990-06-04 JP JP1990059105U patent/JP2513532Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0418052U (en) | 1992-02-14 |
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