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JP2005280528A - Headrest - Google Patents

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Publication number
JP2005280528A
JP2005280528A JP2004098600A JP2004098600A JP2005280528A JP 2005280528 A JP2005280528 A JP 2005280528A JP 2004098600 A JP2004098600 A JP 2004098600A JP 2004098600 A JP2004098600 A JP 2004098600A JP 2005280528 A JP2005280528 A JP 2005280528A
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Japan
Prior art keywords
headrest
load receiving
width
view
receiving portion
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Granted
Application number
JP2004098600A
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Japanese (ja)
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JP4346486B2 (en
Inventor
Hiroshi Mizuno
啓 水野
誉章 ▲高▼▲崎▼
Yoshiaki Takasaki
Yoshihiko Sugimoto
吉彦 杉本
Tokuji Arai
督治 荒井
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Toyota Boshoku Corp
Inoac Corp
Arai Seisakusho Co Ltd
Original Assignee
Inoue MTP KK
Toyota Boshoku Corp
Inoac Corp
Arai Seisakusho Co Ltd
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Application filed by Inoue MTP KK, Toyota Boshoku Corp, Inoac Corp, Arai Seisakusho Co Ltd filed Critical Inoue MTP KK
Priority to JP2004098600A priority Critical patent/JP4346486B2/en
Publication of JP2005280528A publication Critical patent/JP2005280528A/en
Application granted granted Critical
Publication of JP4346486B2 publication Critical patent/JP4346486B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/891—Head-rests with the head-rest being comma-shaped in side view

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  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headrest which can secure sufficient holding strength for the head of an occupant, and is not a hindrance even when the seat back is folded to the seat cushion side. <P>SOLUTION: In the headrest, a stay 4 where load receiving parts 4c, 4c bent in the approximate U-shape are vertically provided through extension parts 4b, 4b extending forward on the upper end of two leg parts 4a, 4a is embedded in a headrest pad 3 in an approximate L shape in the side view. The extension parts 4b, 4b are inwardly extended toward the front, and the width of the load receiving part 4c is set to be narrower than the width of the two leg parts 4a, 4a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、搭乗者の頭部の十分な保持強度を確保することができ、しかもシートバックをシートクッション側へ折り畳んだ際にも邪魔になることのないヘッドレストに関するものである。   The present invention relates to a headrest that can secure a sufficient holding strength of a passenger's head and that does not get in the way even when a seat back is folded toward a seat cushion.

最近では、家族や友人等の多人数が乗れる自動車の人気が高まっており、各種のタイプのものが販売されている。このような自動車では従来の後部座席に加えて、更にその後ろに３列目のシートを設けたものが普通である。この場合、３列目のシートは、図４に示されるように、折り畳んだ状態で荷物置き場として使用に供されるような構造が採られている。従って、３列目のシートのシートバック１の高さ（Ｈ１）は通常のシートよりも低く設計されている（図５参照）ので、シート使用時においては、図６に示されるように、ヘッドレストパッド３を上方へ引き上げて高さ（Ｈ２）を加えた状態として着座することにより搭乗者の頭部や頚部を保護している。   Recently, the popularity of automobiles that can accommodate a large number of people such as family members and friends is increasing, and various types of vehicles are being sold. In such a car, in addition to the conventional rear seat, a car in which a third row of seats is further provided behind is usually used. In this case, as shown in FIG. 4, the third row of sheets is structured to be used as a luggage storage area in a folded state. Accordingly, since the height (H1) of the seat back 1 of the third row of seats is designed to be lower than that of a normal seat (see FIG. 5), as shown in FIG. The passenger's head and neck are protected by lifting the pad 3 upward and sitting in a state where the height (H2) is added.

一方、３列目のシートはシートバック１をシートクッション２側へ折り畳んだ際に邪魔にならずに大きな荷物スペースを確保できる必要があり、このためヘッドレストパッド３として側面側の断面がＬ字状のものを使用している。また、このようなヘッドレスト用のステー４もヘッドレストパッド３内に埋設できるように、例えば特許文献１に示されるように、先端を鉤状に屈曲させたものを使用している。   On the other hand, the third row of seats must be able to secure a large luggage space without being obstructed when the seat back 1 is folded to the seat cushion 2 side. For this reason, the side cross section of the headrest pad 3 is L-shaped. Are using things. Further, as shown in Patent Document 1, for example, a headrest bent 4 is used so that such a headrest stay 4 can also be embedded in the headrest pad 3.

しかしながら、鉤状のステーの場合は、ヘッドレストに要求されている強度を満足するのに、図７に示されるように、鉄板製の補強ブラケット２０を取り付けていた。従って、補強ブラケット２０の取り付けのための溶接工程等が必要になるという問題点や、ブラケット部品が必要で生産コストが高くなるという問題点があった。
特開平９−１６８４５１号公報 However, in the case of a saddle-like stay, a reinforcing bracket 20 made of iron plate is attached as shown in FIG. 7 to satisfy the strength required for the headrest. Therefore, there is a problem that a welding process or the like for attaching the reinforcing bracket 20 is necessary, and there is a problem that bracket parts are necessary and the production cost is increased.
Japanese Patent Laid-Open No. 9-168451

本発明は上記のような従来の問題点を解決して、ヘッドレストに要求されている強度を満足することができ、しかもシートバックをシートクッション側へ折り畳んだ際にも邪魔になることがなく、また余分なブラケット部品が不要で組立作業を単純化できるうえに、生産コストも安価にすることができるヘッドレストを提供することを目的として完成されたものである。   The present invention solves the conventional problems as described above, can satisfy the strength required for the headrest, and does not get in the way when the seat back is folded to the seat cushion side, In addition, the present invention has been completed for the purpose of providing a headrest that can simplify the assembly work and eliminate the need for extra bracket parts and can also reduce the production cost.

上記課題を解決するためになされた本発明のヘッドレストは、側面視が略Ｌ字状のヘッドレストパッド内に、２本の脚部の上端に前方へ延びる延設部を介して略コ字状に屈曲した荷重受け部が垂設されているステーを埋設したヘッドレストであって、前記延設部を前方に向け内向きに延設して、荷重受け部の巾を２本の脚部の巾よりも狭くしたことを特徴とするものである。   The headrest of the present invention made in order to solve the above problems is substantially U-shaped through an extending portion extending forward at the upper ends of the two leg portions in a headrest pad having a substantially L-shaped side view. A headrest having a stay in which a bent load receiving portion is vertically suspended, the extending portion extending inwardly toward the front, and the width of the load receiving portion is made wider than the width of the two leg portions. Is also characterized by being narrowed.

本発明のヘッドレストでは、側面視が略Ｌ字状のヘッドレストパッド内に、２本の脚部の上端に前方へ延びる延設部を介して略コ字状に屈曲した荷重受け部が垂設されているステーを埋設したヘッドレストであって、前記延設部を前方に向け内向きに延設して、荷重受け部の巾を２本の脚部の巾よりも狭くすることにより、従来のように補強ブラケットを取り付けなくてもヘッドレストに要求されている強度を十分に満足することとなる。   In the headrest of the present invention, a load receiving portion bent in a substantially U-shape is vertically provided at the upper ends of the two leg portions in a substantially L-shaped headrest pad in a side view. A headrest embedded with a stay, in which the extension portion is extended inward toward the front, and the width of the load receiving portion is made narrower than the width of the two leg portions. Even if the reinforcing bracket is not attached to the head, the strength required for the headrest is sufficiently satisfied.

以下に、図面を参照しつつ本発明の好ましい形態を示す。
図１は、本発明を自動車の３列目のシートに適用した場合を示すものであり、図中３は側面視が略Ｌ字状のヘッドレストパッド、４はその内部に埋設されるステーである。このステー４は、２本の脚部４ａ、４ａの上端に前方へ延びる延設部４ｂ、４ｂを介して略コ字状に屈曲した２本の荷重受け部４ｃ、４ｃが垂設された構造であり、以上の構成は従来のヘッドレストステーと基本的には同様である。なお、５はヘッドレストの高さを調節するための切り欠き凹部である。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a case where the present invention is applied to a third row seat of an automobile, in which 3 is a headrest pad having a substantially L-shaped side view, and 4 is a stay embedded therein. . The stay 4 has a structure in which two load receiving portions 4c and 4c bent in a substantially U-shape are vertically provided at the upper ends of the two leg portions 4a and 4a via extension portions 4b and 4b extending forward. The above configuration is basically the same as that of the conventional headrest stay. In addition, 5 is a notch recessed part for adjusting the height of a headrest.

本発明では、ステー４は前記延設部４ｂ、４ｂを前方に向け内向きに延設して、２本の荷重受け部４ｃ、４ｃの巾を２本の脚部４ａ、４ａの巾よりも狭くしたものとされている。図２（ａ）は、このステー４の正面図、図２（ｂ）はそのＡ−Ａ断面図、図２（ｃ）はその平面図を示すものである。図２に示されるように、２本の脚部４ａ、４ａの上端には前方へ水平に延びる延設部４ｂ、４ｂが形成されており、しかもこの延設部４ｂ、４ｂは前方部の巾が狭くなるように前方に向け内向きに延設されている。そして、それぞれの延設部４ｂ、４ｂの前端には略コ字状に屈曲した荷重受け部４ｃ、４ｃが下向きに設けられているのである。
このような構造としたのは、本発明者が研究した結果、前記延設部４ｂ、４ｂを前方に向け内向きに延設して、２本の荷重受け部４ｃ、４ｃの巾を２本の脚部４ａ、４ａの巾よりも狭くすれば、従来のように補強ブラケットを取り付けなくても荷重受け部４ｃ、４ｃの強度を十分に高めることができて、ヘッドレストに要求されている強度を満足することができることを見出したことによる。 In the present invention, the stay 4 extends inwardly with the extending portions 4b and 4b facing forward, and the width of the two load receiving portions 4c and 4c is larger than the width of the two leg portions 4a and 4a. It is supposed to be narrow. 2A is a front view of the stay 4, FIG. 2B is a sectional view taken along the line AA, and FIG. 2C is a plan view thereof. As shown in FIG. 2, extension portions 4b and 4b extending horizontally forward are formed at the upper ends of the two leg portions 4a and 4a, and the extension portions 4b and 4b have a width of the front portion. Is extended inwardly toward the front so as to narrow. Then, load receiving portions 4c and 4c bent in a substantially U-shape are provided downward at the front ends of the extending portions 4b and 4b.
As a result of research conducted by the present inventor, the above-described structure has been achieved by extending the extending portions 4b and 4b inward and inwardly extending the two load receiving portions 4c and 4c. If the leg portions 4a and 4a are narrower than the width of the leg portions 4a and 4a, the strength of the load receiving portions 4c and 4c can be sufficiently increased without attaching a reinforcing bracket as in the prior art. By finding that we can be satisfied.

以下に、ステー４の形状について更に具体的に説明する。
ヘッドレストの強度は、人体頭部を模した球形体をヘッドレスト前面に所定の荷重で衝突させ、ヘッドレストが十分な強度を有していることを確認するのが一般的である。
これを模式的に表わすと、図３に示すようになる。これは、ヘッドレストを構成する発泡ウレタンや表皮材が圧縮されると、球形体Ａは荷重受け部４ｃの極めて近傍まで接近し、球形体Ａの荷重が荷重受け部４ｃに伝えられる。この荷重は、延設部４ｂを介して脚部４ａに伝えられ、脚部４ａを支持するシートバック１内のフレーム（図示せず）に伝達される。 Hereinafter, the shape of the stay 4 will be described more specifically.
The strength of the headrest is generally confirmed by causing a spherical body imitating the human head to collide with the front surface of the headrest with a predetermined load and confirming that the headrest has sufficient strength.
This is schematically shown in FIG. This is because when the urethane foam or skin material constituting the headrest is compressed, the spherical body A approaches very close to the load receiving portion 4c, and the load of the spherical body A is transmitted to the load receiving portion 4c. This load is transmitted to the leg portion 4a through the extending portion 4b, and is transmitted to a frame (not shown) in the seat back 1 that supports the leg portion 4a.

この時、図３に示すように、本発明では球形体Ａの重心（球形体Ａの中心）と荷重受け部４ｃと脚部４ａが一直線上に配置されているので、荷重受け部４ｃで受けた球形体Ａの荷重Ｆは効率よく全て脚部４ａまで伝達されることとなる。
これに対して従来のものは、図８に示されるように、脚部４ａと荷重受け部４ｃを結ぶ直線が前後方向に平行となるように構成されているので、球形体Ａからの荷重ＦはＦ１とＦ２とに分散されることとなり、荷重Ｆ１により荷重受け部４ｃ、４ｃは外側へ押し拡げられることとなる。従って、これを防止するための補強ブラケット２０の取り付けが必須要件となるのである。
このように、本発明では延設部４ｂ、４ｂを前方に向け内向きに延設して、荷重受け部４ｃの巾を２本の脚部４ａ、４ａの巾よりも狭くすることにより、簡単な構造で優れた強度を有するヘッドレストを提供することができるのである。 At this time, as shown in FIG. 3, in the present invention, the center of gravity of the spherical body A (the center of the spherical body A), the load receiving portion 4c, and the leg portion 4a are arranged in a straight line. The entire load F of the spherical body A is efficiently transmitted to the legs 4a.
On the other hand, as shown in FIG. 8, the conventional one is configured so that the straight line connecting the leg portion 4a and the load receiving portion 4c is parallel to the front-rear direction. Is distributed to F 1 and F 2, and the load receiving portions 4 c and 4 c are pushed outward by the load F 1 . Therefore, it is essential to attach the reinforcing bracket 20 to prevent this.
Thus, in the present invention, the extending portions 4b and 4b are extended inwardly toward the front, and the width of the load receiving portion 4c is made narrower than the width of the two leg portions 4a and 4a. It is possible to provide a headrest having an excellent strength with a simple structure.

次に、荷重受け部４ｃをどの程度の間隔にするのが適切であるかであるが、この座席に座り、実用上このヘッドレストを利用する年齢が４歳以上と仮定すると、その頭部の巾は一般には１５０〜１７０ｍｍの範囲にあると言われている。言いかえると、脚部４ａの中心と荷重受け部４ｃの中心を結ぶ２本の直線の交点を中心として、前記荷重受け部４ｃに当接する円を描き、この円の直径（２ｒ）が１５０〜１７０ｍｍの範囲にあれば、このヘッドレストは前記の図３を用いた説明で述べたヘッドレストの強度を最も効率よく引き出すヘッドレストであると言える。   Next, it is appropriate to determine the distance between the load receiving portions 4c. Assuming that the age of sitting on this seat and practically using this headrest is 4 years old or more, the width of the head. Is generally said to be in the range of 150-170 mm. In other words, a circle abutting on the load receiving portion 4c is drawn around the intersection of two straight lines connecting the center of the leg portion 4a and the center of the load receiving portion 4c, and the diameter (2r) of this circle is 150˜. If it is in the range of 170 mm, it can be said that this headrest is the headrest that most effectively draws out the strength of the headrest described in the explanation with reference to FIG.

しかしながら、ヘッドレストはその名前が示すごとく、人体の頭部を当接させても頭部がヘッドレストからはみ出すことがないよう、人体の頭部より大きな巾（Ｗ）を持つよう設計されている。つまり、ヘッドレストの巾（Ｗ）がこのヘッドレストで考慮された人体の頭部の最大巾と言える。
なお、荷重受け部４ｃの巾の下限は特に規定するものではないが、脚部４ａの中心と荷重受け部４ｃの中心を結ぶ２本の直線の交点がヘッドレストパッド３の外側にあればよい。
このように構成されたヘッドレストは、図５に示されるように、３列目のシートに適用され、図６に示されるように、ヘッドレストパッド３を上方へ引き上げて高さ（Ｈ２）を加えた状態で使用に供され、搭乗者の頭部や頚部を保護する。また、図４に示されるように、折り畳んだ状態で荷物置き場として使用に供される場合は、ヘッドレストパッド３が邪魔になることがなくコンパクトに収納されるため、広くて使い勝手に優れた荷物置き場が確保できることとなる。 However, as the name indicates, the headrest is designed to have a larger width (W) than the head of the human body so that the head does not protrude from the headrest even if the head of the human body abuts. That is, it can be said that the width (W) of the headrest is the maximum width of the human head considered in the headrest.
The lower limit of the width of the load receiving portion 4c is not particularly specified, but the intersection of two straight lines connecting the center of the leg portion 4a and the center of the load receiving portion 4c only needs to be outside the headrest pad 3.
The headrest configured as described above is applied to the third row of seats as shown in FIG. 5, and as shown in FIG. 6, the headrest pad 3 is pulled upward to add height (H2). Used in state and protects the passenger's head and neck. In addition, as shown in FIG. 4, when used as a luggage storage in a folded state, the headrest pad 3 is stored compactly without obstruction, so the luggage storage is large and easy to use. Can be secured.

以上の説明からも明らかなように、本発明は側面視が略Ｌ字状のヘッドレストパッド内に、２本の脚部の上端に前方へ延びる延設部を介して略コ字状に屈曲した荷重受け部が垂設されたステーを埋設したヘッドレストであって、前記延設部を前方に向け内向きに延設して、荷重受け部の巾を２本の脚部の巾よりも狭くすることで、従来のように補強ブラケットを取り付けなくても荷重受け部４ｃ、４ｃの強度を十分に高めるものである。この結果、余分なブラケット部品が不要で組立作業を単純化できるうえに、生産コストも安価にすることができるという利点を有することとなる。   As is clear from the above description, the present invention is bent into a substantially U-shape in a headrest pad that is substantially L-shaped in a side view, via an extending portion that extends forward at the upper ends of the two leg portions. A headrest in which a stay having a load receiving portion suspended therein is embedded, wherein the extending portion is extended inward toward the front to make the width of the load receiving portion narrower than the width of the two leg portions. Thus, the strength of the load receiving portions 4c and 4c can be sufficiently increased without attaching a reinforcing bracket as in the prior art. As a result, there is an advantage that an extra bracket part is not required and the assembling work can be simplified, and the production cost can be reduced.

本発明の実施の形態を示す斜視図である。It is a perspective view which shows embodiment of this invention. （ａ）はステーを示す正面図、（ｂ）はそのＡ−Ａ断面図、（ｃ）はその平面図である。(A) is a front view which shows a stay, (b) is the AA sectional drawing, (c) is the top view. （ａ）はステーの強度を確認するための試験の説明用平面図、（ｂ）はその側面図である。(A) is a plan view for explaining the test for confirming the strength of the stay, and (b) is a side view thereof. ３列目のシートを折り畳んだ状態を示す正面図である。It is a front view which shows the state which folded the sheet | seat of the 3rd row. ３列目のシートの使用状態を示す斜視図である。It is a perspective view which shows the use condition of the sheet | seat of the 3rd row. ３列目のシートの使用状態を示す斜視図である。It is a perspective view which shows the use condition of the sheet | seat of the 3rd row. 従来例を示す斜視図である。It is a perspective view which shows a prior art example. 従来例のステーの強度を確認するための試験の説明用平面図である。It is a top view for description of the test for confirming the intensity | strength of the stay of a prior art example.

符号の説明Explanation of symbols

１ シートバック
２ シートクション
３ ヘッドレストパッド
４ ステー
４ａ 脚部
４ｂ 延設部
４ｃ 荷重受け部 DESCRIPTION OF SYMBOLS 1 Seat back 2 Seat action 3 Headrest pad 4 Stay 4a Leg part 4b Extension part 4c Load receiving part

Claims (3)

側面視が略Ｌ字状のヘッドレストパッド内に、２本の脚部の上端に前方へ延びる延設部を介して略コ字状に屈曲した荷重受け部が垂設されているステーを埋設したヘッドレストであって、前記延設部を前方に向け内向きに延設して、２本の荷重受け部の巾を脚部の巾よりも狭くしたことを特徴とするヘッドレスト。   In the headrest pad having a substantially L-shaped side view, a stay is embedded in which a load receiving portion bent in a substantially U-shape is extended at the upper ends of the two leg portions through an extending portion extending forward. A headrest, characterized in that the extending portion extends inwardly toward the front, and the width of the two load receiving portions is narrower than the width of the leg portion. 平面視において、脚部の中心と荷重受け部の中心を結ぶ２本の直線の交点を中心として、前記荷重受け部に当接する円を描いたとき、その円がヘッドレストパッドの巾よりも小さいものとした請求項１に記載のヘッドレスト。   In a plan view, when a circle abutting on the load receiving portion is drawn around the intersection of two straight lines connecting the center of the leg portion and the center of the load receiving portion, the circle is smaller than the width of the headrest pad. The headrest according to claim 1. 平面視において、脚部の中心と荷重受け部の中心を結ぶ２本の直線の交点を中心として、前記荷重受け部に当接する円を描いたとき、その円の直径が１５０〜１７０ｍｍの範囲にある請求項１または２に記載のヘッドレスト。
In a plan view, when a circle abutting on the load receiving portion is drawn around the intersection of two straight lines connecting the center of the leg portion and the center of the load receiving portion, the diameter of the circle is in the range of 150 to 170 mm. The headrest according to claim 1 or 2.
JP2004098600A 2004-03-30 2004-03-30 Headrest Expired - Lifetime JP4346486B2 (en)

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Cited By (5)

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JP2013199179A (en) * 2012-03-23 2013-10-03 Ts Tech Co Ltd Vehicle seat device
JP2017190133A (en) * 2017-06-22 2017-10-19 テイ・エス テック株式会社 Vehicle seat device
US10131261B2 (en) 2012-07-06 2018-11-20 Ts Tech Co., Ltd. Seat device for vehicle
JP2024090223A (en) * 2022-12-22 2024-07-04 テイ・エス テック株式会社 Vehicle seats

Cited By (8)

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Publication number Priority date Publication date Assignee Title
JP2006076102A (en) * 2004-09-09 2006-03-23 Bridgestone Corp Pneumatic tire and its manufacturing method
JP2013199179A (en) * 2012-03-23 2013-10-03 Ts Tech Co Ltd Vehicle seat device
US10131261B2 (en) 2012-07-06 2018-11-20 Ts Tech Co., Ltd. Seat device for vehicle
US10384577B2 (en) 2012-07-06 2019-08-20 Ts Tech Co., Ltd. Seat device for vehicle and method for assembling same
US10647234B2 (en) 2012-07-06 2020-05-12 Ts Tech Co., Ltd. Seat device for vehicle and method of assembling same
JP2017190133A (en) * 2017-06-22 2017-10-19 テイ・エス テック株式会社 Vehicle seat device
JP2024090223A (en) * 2022-12-22 2024-07-04 テイ・エス テック株式会社 Vehicle seats
JP7804194B2 (en) 2022-12-22 2026-01-22 テイ・エス テック株式会社 Vehicle seats

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