JP3591631B2 - Pad structure of seat back - Google Patents
Pad structure of seat back Download PDFInfo
- Publication number
- JP3591631B2 JP3591631B2 JP2000027181A JP2000027181A JP3591631B2 JP 3591631 B2 JP3591631 B2 JP 3591631B2 JP 2000027181 A JP2000027181 A JP 2000027181A JP 2000027181 A JP2000027181 A JP 2000027181A JP 3591631 B2 JP3591631 B2 JP 3591631B2
- Authority
- JP
- Japan
- Prior art keywords
- pad
- seat back
- tongue
- seat
- curved
- 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 - Fee Related
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Description
【０００１】
【発明の属する技術分野】
本発明は自動車用シート（座席）におけるシートバック（背凭部）を構成する発泡体（ウレタンフォーム）製のパッド構造に関する。
【０００２】
【従来の技術】
図５に示す従来の自動車用シートのシートバックには、図６に示すようにモールドで射出成形した発泡体（ウレタンフォーム）製のパッド（１０）（１２）（１３）を袋状に縫製したトリムカバー（２）で被覆したものがある。
【０００３】
以上のパッドは、着座者の上半身を支持する着座部（１３）と、この着座部（１３）の下辺部を除く周囲に一体成形してフレーム（３０）の外側面を被う側部（１２）と、この側部（１２）に沿って一体成形してフレーム（３０）の後端縁を被う舌状片部（１０）とから構成されている。
【０００４】
以上のパッドの舌状片部（１０）の先端外側には、図７に示すように射出成形型における上型（Ｂ′）と下型（Ａ′）との合わせ目に注入した発泡液によって凸条（１４）が図８に示すように形成されている。
【０００５】
図７において、図中（１０′）は、パッドの舌状片部成形部、（１２′）は同側部成形部、（１３′）は同着座部成形部、（１４′）は上型（Ｂ′）と下型（Ａ′）の合わせ目における舌状片部成形部（１０′）に臨む個所で、この部分に発泡液が入り込み前記凸条（１４）が形成される。
【０００６】
【発明が解決しようする課題】
以上の凸条（１４）が外方に突出しているため、トリムカバー（２）の背面（２０）側に、図５、図６に示すようにシートバック（ＳＢ）の外観を損なう突起線（２４）が現れる。
【０００７】
そこで、本発明は斯様な従来品の不具合を除去することを目的とする。
【０００８】
【課題を解決するための手段】
以上の目的を達成するための本発明は、前記舌状片部の先端における外側の角部に、湾曲状に成形した湾曲部を設け、該湾曲部における内側である前記着座部側に、前記上、下型の合わせ目によって形成される凸条を設けてなることを特徴とするものである。
【０００９】
以上の構成により、上、下型の合わせ目によって形成される凸条が、パッドをトリムカバーで被覆した際に、トリムカバーに接触することがないため、トリムカバーがパッドの凸条によって変形することがない。
【００１０】
【発明の実施の形態】
以下、本発明の実施の一形態を図１乃至図４に基づいて説明する。
図１、図２は本発明に係るシートバックのパッド（１）を示し、図中（１３）は着座部、（１２）、（１２）は側部で、これらは前記従来品と同一で、側部（１２）に一体成形する舌状片部（１０）の先端における外側の角部には、湾曲状に形成した湾曲部（１０Ａ）が形成されている。
【００１１】
この湾曲部（１０Ａ）の内側である着座部（１３）側に、図３に示す射出成形型の上、下型（Ａ）（Ｂ）による合わせ目（１１′）によって形成される凸条（１１）が形成されている。
【００１２】
上型（Ｂ）と下型（Ａ）は、合わせ目（１１′）が前記湾曲部（１０Ａ）の内側に位置するように形成されている。
【００１３】
なお、図３において、図中（１０Ａ′）は、パッド（１）の側部（１２）に設けた湾曲部（１０Ａ）を成形する湾曲成形部、（１０′）は前記舌状片部（１２）を成形する舌状片部成形部、（１２′）は同側部成形部、（１３′）は同着座部成形部を各々示す。
【００１４】
斯して、凸条（１１）は前述の如く前記パッド（１）の舌状片部（１０）における湾曲部（１０Ａ）の内側に形成されている。従って、図４に示すように、袋状に縫製したトリムカバー（２）でフレーム（３０）付のパッド（１）を被覆した際に、そのトリムカバー（２）の背面部（２０）に、前記凸条（１１）が全く接触することがない。
【００１５】
【発明の効果】
本発明によれば、パッドの射出成形時に形成される凸条が、パッドの舌状片部における湾曲部の内側に位置しているため、凸条がパッドを被覆するトリムカバーに接触することがない。
そのため、前記従来品の如くパッドに形成された凸条によってシートバックの外観品質を損なうことがない。
【図面の簡単な説明】
【図１】本発明に係るパッドの斜視図である。
【図２】図１のＩＩーＩＩ線断面図である。
【図３】図２に示すパッドの射出成形型を示す断面図である。
【図４】本発明に係るパッドを使用したシートバックの部分断面図である。
【図５】従来のシートバックの斜視図である。
【図６】図５のＶＩーＶＩ線断面図である。
【図７】従来のパッド成形用の射出成形型の部分断面図である。
【図８】従来のパッドの部分断面図である。
【符号の説明】
１０ 舌状片部
１０Ａ 湾曲部
１１ 凸条
１２ 側部
１３ 着座部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pad structure made of a foam (urethane foam) constituting a seat back (backrest portion) of an automobile seat (seat).
[0002]
[Prior art]
As shown in FIG. 6, pads (10), (12), and (13) made of foam (urethane foam) injection-molded with a mold are sewn into a bag shape on the seat back of the conventional automobile seat shown in FIG. Some are covered with a trim cover (2).
[0003]
The pad described above is formed integrally with a seat portion (13) for supporting the upper body of the seated person and around the lower portion of the seat portion (13) except for the side portion (12) covering the outer surface of the frame (30). ) And a tongue-shaped piece (10) integrally formed along the side part (12) and covering the rear edge of the frame (30).
[0004]
As shown in FIG. 7, a foaming liquid injected into the joint between the upper mold (B ') and the lower mold (A') in the injection molding die is provided on the outer side of the tip of the tongue-like piece (10) of the pad. The ridge (14) is formed as shown in FIG.
[0005]
In FIG. 7, (10 ') is a tongue-shaped portion forming portion of the pad, (12') is a side portion forming portion, (13 ') is a seating portion forming portion, and (14') is an upper die. At the place where the tongue-shaped piece forming part (10 ') is reached at the joint between (B') and the lower mold (A '), the foaming liquid enters into this part to form the ridge (14).
[0006]
[Problems to be solved by the invention]
Since the ridges (14) protrude outward, the protrusions (S) on the back (20) side of the trim cover (2) impair the appearance of the seat back (SB) as shown in FIGS. 24) appears.
[0007]
Therefore, an object of the present invention is to eliminate such disadvantages of the conventional product.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a curved portion formed into a curved shape at an outer corner at the tip of the tongue-shaped portion, and the seating portion side which is an inner side of the curved portion, It is characterized in that a ridge formed by the joint of the upper and lower dies is provided.
[0009]
With the above configuration, when the pad is covered with the trim cover, the ridge formed by the joint of the upper and lower molds does not contact the trim cover, so that the trim cover is deformed by the ridge of the pad. Nothing.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
1 and 2 show a pad (1) of a seat back according to the present invention, in which (13) is a seating portion, (12) and (12) are side portions, and these are the same as the conventional product. A curved portion (10A) formed in a curved shape is formed at the outer corner at the tip of the tongue-shaped piece (10) integrally formed with the side portion (12).
[0011]
On the side of the seating portion (13), which is inside the curved portion (10A), the ridges (11 ') formed by the joints (11') of the upper and lower dies (A) and (B) shown in FIG. 11) is formed.
[0012]
The upper mold (B) and the lower mold (A) are formed such that the joint (11 ') is located inside the curved portion (10A).
[0013]
In FIG. 3, (10A ') is a curved molded portion for molding a curved portion (10A) provided on the side portion (12) of the pad (1), and (10') is a tongue-shaped piece ( 12) shows a tongue-shaped part forming part, (12 ') shows the same side part forming part, and (13') shows the same seat part forming part.
[0014]
Thus, the ridge (11) is formed inside the curved portion (10A) of the tongue-like piece (10) of the pad (1) as described above. Therefore, as shown in FIG. 4, when the pad (1) with the frame (30) is covered with the trim cover (2) sewn in a bag shape, the rear surface (20) of the trim cover (2) The ridge (11) does not contact at all.
[0015]
【The invention's effect】
According to the present invention, since the ridge formed during the injection molding of the pad is located inside the curved portion of the tongue-shaped piece of the pad, the ridge may contact the trim cover covering the pad. Absent.
For this reason, the appearance quality of the seat back is not impaired by the ridges formed on the pad as in the conventional product.
[Brief description of the drawings]
FIG. 1 is a perspective view of a pad according to the present invention.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a sectional view showing an injection mold of the pad shown in FIG. 2;
FIG. 4 is a partial sectional view of a seat back using a pad according to the present invention.
FIG. 5 is a perspective view of a conventional seat back.
FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;
FIG. 7 is a partial sectional view of a conventional injection mold for pad molding.
FIG. 8 is a partial sectional view of a conventional pad.
[Explanation of symbols]
Claims (1)
前記舌状片部の先端における外側の角部に、湾曲状に成形した湾曲部を設け、該湾曲部における内側である前記着座部側に、前記上、下型の合わせ目によって形成される凸条を設けてなることを特徴とするシートバックのパッド構造。A foaming liquid is injected into an injection mold having upper and lower dies, and a tongue-like piece is integrally formed by injection molding so as to face inward from a seat portion, left and right side portions, and a tip portion of this side portion. In the foam pad of the seat back,
A curved portion formed into a curved shape is provided at an outer corner portion at the tip of the tongue-shaped piece portion, and a convex portion formed by the seam of the upper and lower dies is provided on the seat portion side, which is the inner side of the curved portion. A pad structure for a seat back, characterized by being provided with a strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000027181A JP3591631B2 (en) | 2000-01-31 | 2000-01-31 | Pad structure of seat back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000027181A JP3591631B2 (en) | 2000-01-31 | 2000-01-31 | Pad structure of seat back |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001212383A JP2001212383A (en) | 2001-08-07 |
| JP3591631B2 true JP3591631B2 (en) | 2004-11-24 |
Family
ID=18552782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000027181A Expired - Fee Related JP3591631B2 (en) | 2000-01-31 | 2000-01-31 | Pad structure of seat back |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3591631B2 (en) |
-
2000
- 2000-01-31 JP JP2000027181A patent/JP3591631B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001212383A (en) | 2001-08-07 |
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