JPS6214934Y2 - - Google Patents
Info
- Publication number
- JPS6214934Y2 JPS6214934Y2 JP1982046230U JP4623082U JPS6214934Y2 JP S6214934 Y2 JPS6214934 Y2 JP S6214934Y2 JP 1982046230 U JP1982046230 U JP 1982046230U JP 4623082 U JP4623082 U JP 4623082U JP S6214934 Y2 JPS6214934 Y2 JP S6214934Y2
- Authority
- JP
- Japan
- Prior art keywords
- stay
- plate
- reinforcing body
- mold
- stay holding
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 229920003002 synthetic resin Polymers 0.000 claims description 12
- 239000000057 synthetic resin Substances 0.000 claims description 12
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 238000000071 blow moulding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 208000021567 Whiplash injury Diseases 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Description
【考案の詳細な説明】 この考案はヘツドレストの補強体に関する。[Detailed explanation of the idea] This invention relates to a headrest reinforcement.
自動車用ヘツドレストは、追突時のむちうち症
の防止のために、現在あらゆる車の座席に装着さ
れている。第１図は従来のヘツドレストを示し、
ヘツドレストはステー１により座席に装着され
る。このヘツドレストの構造は、第２図における
第１図の切断線Ａ−Ａ線によるヘツドレストの断
面図によつて示すように、金属製のステー１と一
体とされた補強体２の周囲を合成樹脂発泡体から
なる緩衝体３により覆い、この緩衝体３の表面を
塩化ビニル樹脂等の合成樹脂シート又はフアブリ
ツク等の表皮４で被覆して構成される。 Car headrests are currently installed on the seats of all cars to prevent whiplash injuries in the event of a rear-end collision. Figure 1 shows a conventional headrest.
The headrest is attached to the seat by stay 1. The structure of this headrest is that, as shown in the cross-sectional view of the headrest taken along the cutting line A-A in FIG. 1 in FIG. It is covered with a cushioning body 3 made of foam, and the surface of this cushioning body 3 is covered with a skin 4 such as a synthetic resin sheet such as vinyl chloride resin or fabric.
補強体は、合成樹脂又は金属からなり、第２図
及び第３図は合成樹脂からなる場合、第４図は金
属からなる場合を示す。補強体は、ヘツドレスト
に繰り返しかかる応力に充分に耐え得るために、
所定の剛性が必要とされ、金属の場合は問題とな
らないが、合成樹脂の場合は、剛性を高めるため
に中空の箱体とせざるを得なかつた。そのため
に、合成樹脂の成形においては、他の成形法に比
し成形時間が長いブロー成形によらねばならなか
つた。尚、第４図において、５は金属製のステー
を示し、このステーはスポツト溶接により金属製
の補強体６に固定される。 The reinforcing body is made of synthetic resin or metal, and FIGS. 2 and 3 show the case where it is made of synthetic resin, and FIG. 4 shows the case where it is made of metal. In order to sufficiently withstand the stress repeatedly applied to the headrest, the reinforcement body is
A certain level of rigidity is required, and while this is not a problem when using metal, when using synthetic resin, a hollow box must be used to increase the rigidity. For this reason, when molding synthetic resins, it has been necessary to use blow molding, which takes a longer molding time than other molding methods. In FIG. 4, reference numeral 5 indicates a metal stay, and this stay is fixed to a metal reinforcing body 6 by spot welding.
これらの従来の補強体は、合成樹脂からなる場
合には、補強体が箱形状のために補強体自身の容
積が大きく、よつて緩衝体である合成樹脂発泡体
の充填量は減少させることができるが、反面、補
強体自身の合成樹脂の使用量が多いために補強体
が重く、軽量化に寄与しなく、更にブロー成形を
用いるために成形時間が長い問題を有しており、
金属製の場合は、補強体のコストは安価である
が、重くならざるを得ない欠点を有していた。 When these conventional reinforcing bodies are made of synthetic resin, the volume of the reinforcing body itself is large due to its box shape, so it is difficult to reduce the filling amount of the synthetic resin foam that serves as the cushioning body. However, on the other hand, since the reinforcing body itself uses a large amount of synthetic resin, the reinforcing body is heavy and does not contribute to weight reduction.Furthermore, since blow molding is used, the molding time is long.
In the case of metal, the cost of the reinforcing body is low, but it has the drawback of being heavy.
この考案は、このような問題を解決するために
なされたもので、軽量で剛性が高く、製造におい
ては成形時間の短いヘツドレストの補強体を提供
するものである。 This invention was devised to solve these problems, and provides a headrest reinforcing body that is lightweight, has high rigidity, and requires a short manufacturing time.
以下、添付図面を用いてこの考案の一実施例を
説明する。 An embodiment of this invention will be described below with reference to the accompanying drawings.
第５図乃至第８図はこの考案によるヘツドレス
トの補強体の一実施例を説明するものである。 FIGS. 5 to 8 illustrate an embodiment of the headrest reinforcement according to this invention.
第５図は補強体の斜視図である。補強体は、熱
可塑性合成樹脂、例えば、ポリプロピレン、塩化
ビニル樹脂、ポリエチレン等の略長方形の板状体
７からなり、この板状体の中央部において、長手
方向に直交する断面形状を凹凸８とし、すなわ
ち、板状体の両面に互い違いに突部を有するよう
にし、板状体の両端にはステー保持部９を形成し
てなるものである。 FIG. 5 is a perspective view of the reinforcing body. The reinforcing body consists of a substantially rectangular plate-like body 7 made of thermoplastic synthetic resin, such as polypropylene, vinyl chloride resin, polyethylene, etc., and the cross-sectional shape perpendicular to the longitudinal direction of this plate-like body is uneven 8 at the center of the plate-like body. That is, the plate-shaped body has protrusions alternately on both sides, and the stay holding portions 9 are formed at both ends of the plate-shaped body.
ステー保持部９には金属製のステー１０が挿入
される。 A metal stay 10 is inserted into the stay holding portion 9.
第６図は、第５図の切断線Ｂ−Ｂ線に沿つて切
断した補強体の断面図で、板状体に形成された凹
凸８を説明するために示したものである。凹凸８
は補強体の剛性を高めるために形成されたもの
で、凹凸形状及び数は、板状体に用いられる熱可
塑性合成樹脂の種類及び板状体の厚み等の形状に
よつて決定される。凹凸形状の例として、〓、〓、
〓等がある。 FIG. 6 is a cross-sectional view of the reinforcing body taken along the cutting line BB in FIG. 5, and is shown for explaining the unevenness 8 formed on the plate-shaped body. Unevenness 8
are formed to increase the rigidity of the reinforcing body, and the shape and number of the irregularities are determined by the type of thermoplastic synthetic resin used for the plate-like body and the shape of the plate-like body, such as the thickness. Examples of uneven shapes are 〓, 〓,
〓 etc.
第７図は、第５図の切断線Ｃ−Ｃ線に沿つて切
断した補強体の断面図で、ステー保持部９を説明
するために示したものである。ステー保持部９
は、板状体の両端において、板状体の両面に交互
に半環状体を形成し、ステー１０が挿入できるよ
うにされたものである。この半環状体により構成
されるステー保持部９の内径は、ステー１０の外
径より幾分小とし、ステー挿入後にステーがガタ
つかないようになされる。更に、ステー保持部の
先端９ａの内形状を半円形とし、ステー１０の端
部に形成された半円形と嵌合してステーが回転し
ないようにされる。 FIG. 7 is a cross-sectional view of the reinforcing body cut along the cutting line C--C in FIG. 5, and is shown for explaining the stay holding portion 9. As shown in FIG. Stay holding part 9
In this example, semi-annular bodies are formed alternately on both sides of the plate-shaped body at both ends of the plate-shaped body, so that the stays 10 can be inserted therein. The inner diameter of the stay holding portion 9 constituted by this semi-annular body is made somewhat smaller than the outer diameter of the stay 10 to prevent the stay from wobbling after the stay is inserted. Furthermore, the inner shape of the tip 9a of the stay holding portion is semicircular, and it fits into the semicircle formed at the end of the stay 10 to prevent the stay from rotating.
第８図は、ステー保持部９にステー１０を挿入
した、前記の状態のステー保持部の断面を示す。
ステー１０の挿入は、予め加熱しておいたステー
を、ステー保持部９に無理嵌めすることにより行
なう。 FIG. 8 shows a cross section of the stay holding part in the above-mentioned state in which the stay 10 is inserted into the stay holding part 9. FIG.
The stay 10 is inserted by force-fitting the stay, which has been heated in advance, into the stay holding portion 9.
この考案の補強体の製造は、ブロー成形より成
形時間が短い射出成形によつて行なわれる。これ
は、従来の補強体が剛性の点から箱形状とする必
要があり、このためにブロー成形法を用いざるを
得なかつたのに対し、この考案の補強体は、凹凸
形状を付与した板状体からなるために、射出成形
が可能であることによる。更に、ステー保持部を
板状体の両面に交互に形成された半環状体とした
ことによる製造上の利点は、成形型の構造の簡略
化である。以下に、このステー保持部を形成する
部分の成形型の断面を示した第９図及び第１０図
を用いてこのことを説明する。第９図に示すよう
に、ステー保持部を一般に用いられる円筒形とす
る場合は、円筒形の保持部１１を形成するための
スライド型１２が、上型１３及び下型１４の他に
必要となるのに対し、この考案による補強体にあ
つては、ステー保持部が板状体の両面に交互に形
成された半環状体よりなるために、第１０図に示
すように、ステー保持部１５の形成に当つては上
型１６及び下型１７の他に別型を用いる必要がな
い。 The reinforcing body of this invention is manufactured by injection molding, which takes a shorter molding time than blow molding. This is because conventional reinforcing bodies had to be box-shaped in terms of rigidity, which necessitated the use of blow molding, whereas the reinforcing body of this invention is a plate with an uneven shape. This is because injection molding is possible because it is made of a shaped body. Furthermore, the manufacturing advantage of forming the stay holding portions into semi-annular bodies alternately formed on both sides of the plate-like body is the simplification of the structure of the mold. This will be explained below with reference to FIGS. 9 and 10, which show a cross section of the mold for forming the stay holding portion. As shown in FIG. 9, when the stay holding part is made into a generally used cylindrical shape, a slide mold 12 for forming the cylindrical holding part 11 is required in addition to the upper mold 13 and the lower mold 14. On the other hand, in the case of the reinforcing body according to this invention, since the stay holding portions are formed of semicircular bodies alternately formed on both sides of the plate-like body, the stay holding portions 15 are formed as shown in FIG. There is no need to use a separate mold other than the upper mold 16 and the lower mold 17 for forming the mold.
この成形型の簡略化によつて成形型の製作費が
低減できるとともに、成形型のセツト等の取り扱
い時間、すなわち成形時間のより一層の短縮を可
能とした。 This simplification of the mold makes it possible to reduce the manufacturing cost of the mold, and also to further shorten the handling time such as setting the mold, that is, the molding time.
前記したように、この考案のヘツドレストの補
強体は、熱可塑性合成樹脂の板状体に凹凸形状を
形成したものとしたために、従来の箱形状の補強
体と同程度の剛性を付与することができ、よつて
従来の補強体に比して軽量であるにもかかわら
ず、従来の補強体と同程度の剛性を有し、更に板
状体としたために、成形時間が短い射出成形によ
りこの補強体を成形することができ、その上、ス
テー保持部を板状体両面に交互に形成された半環
状体としたために、成形型は上型及び下型の二つ
の型のみで済み、成形型の製作費の低減及び成形
型の操作時間の短縮による成形時間のより一層の
短縮を可能とした。 As mentioned above, the reinforcing body for the headrest of this invention is a thermoplastic synthetic resin plate with an uneven shape, so it can provide the same level of rigidity as the conventional box-shaped reinforcing body. Although it is lighter than conventional reinforcements, it has the same rigidity as conventional reinforcements, and because it is made into a plate-shaped material, this reinforcement can be achieved by injection molding, which takes less time to form. In addition, since the stay holding parts are semicircular bodies formed alternately on both sides of the plate-shaped body, only two molds, an upper mold and a lower mold, are required. This makes it possible to further shorten molding time by reducing production costs and shortening mold operation time.
第１図乃至第４図は従来のヘツドレスト及び補
強体を説明するもので、第１図はヘツドレストの
斜視図、第２図は第１図Ａ−Ａ線に沿つて切断し
たヘツドレストの断面図、第３図は補強体の斜視
図、第４図は他実施例の補強体の斜視図である。
第５図乃至第８図はこの考案のヘツドレストの補
強体を説明するもので、第５図は補強体の斜視
図、第６図は第５図の切断線Ｂ−Ｂ線に沿つて切
断した断面図、第７図は第５図の切断線Ｃ−Ｃ線
に沿つて切断した断面図、第８図はステー保持部
にステーを挿入した際のステー保持部の断面図で
ある。第９図及び第１０図は成形型のステー保持
部の断面図で、第９図はステー保持部が円筒形
状、第１０図は本考案の補強体の場合である。
７……板状体、８……凹凸、９……ステー保持
部、１０……ステー、１５……成形型のステー保
持部、１６……上型、１７……下型。
1 to 4 illustrate a conventional head rest and reinforcement body, FIG. 1 is a perspective view of the head rest, FIG. 2 is a sectional view of the head rest taken along the line A-A in FIG. 1, FIG. 3 is a perspective view of the reinforcing body, and FIG. 4 is a perspective view of the reinforcing body of another embodiment.
Figures 5 to 8 illustrate the reinforcing body of the headrest of this invention. Figure 5 is a perspective view of the reinforcing body, and Figure 6 is a cut taken along the cutting line B-B in Figure 5. 7 is a cross-sectional view taken along the cutting line C--C in FIG. 5, and FIG. 8 is a cross-sectional view of the stay holding portion when the stay is inserted into the stay holding portion. 9 and 10 are cross-sectional views of the stay holding portion of the mold, where FIG. 9 shows the stay holding portion having a cylindrical shape, and FIG. 10 shows the case where the reinforcing body of the present invention is used. 7... Plate-shaped body, 8... Irregularities, 9... Stay holding part, 10... Stay, 15... Stay holding part of mold, 16... Upper mold, 17... Lower mold.
Claims (1)
体の長手方向に直交する断面形状を凹凸にし、該
板状体の両端部にステー保持部を設け、該ステー
保持部を板状体の両面に交互に形成した半環状体
により構成したことを特徴とするヘツドレストの
補強体。 A substantially rectangular plate-like body made of thermoplastic synthetic resin has an uneven cross-sectional shape perpendicular to the longitudinal direction, stay holding parts are provided at both ends of the plate-like body, and the stay holding parts are attached to both sides of the plate-like body. A reinforcing body for a headrest, characterized in that it is constituted by alternately formed semicircular bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623082U JPS58149953U (en) | 1982-03-31 | 1982-03-31 | Headrest reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623082U JPS58149953U (en) | 1982-03-31 | 1982-03-31 | Headrest reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58149953U JPS58149953U (en) | 1983-10-07 |
| JPS6214934Y2 true JPS6214934Y2 (en) | 1987-04-16 |
Family
ID=30057231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4623082U Granted JPS58149953U (en) | 1982-03-31 | 1982-03-31 | Headrest reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58149953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007308161A (en) * | 2006-05-18 | 2007-11-29 | Shin Etsu Polymer Co Ltd | Storage case |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5205913B2 (en) * | 2007-10-18 | 2013-06-05 | トヨタ紡織株式会社 | Vehicle headrest structure |
| JP5496545B2 (en) * | 2009-05-25 | 2014-05-21 | 株式会社イノアックコーポレーション | Headrest and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732785Y2 (en) * | 1978-03-08 | 1982-07-19 |
-
1982
- 1982-03-31 JP JP4623082U patent/JPS58149953U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007308161A (en) * | 2006-05-18 | 2007-11-29 | Shin Etsu Polymer Co Ltd | Storage case |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58149953U (en) | 1983-10-07 |
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