JP4333891B2 - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
JP4333891B2
JP4333891B2 JP36736399A JP36736399A JP4333891B2 JP 4333891 B2 JP4333891 B2 JP 4333891B2 JP 36736399 A JP36736399 A JP 36736399A JP 36736399 A JP36736399 A JP 36736399A JP 4333891 B2 JP4333891 B2 JP 4333891B2
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Japan
Prior art keywords
central
cushion
cushion material
cushion member
headrest
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Expired - Fee Related
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JP36736399A
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Japanese (ja)
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JP2001180351A (en
JP2001180351A5 (en
Inventor
享志 上杉
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TS Tech Co Ltd
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TS Tech Co Ltd
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  • Seats For Vehicles (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、車両用シートに係るものであり、衝撃荷重を受けたときの頭部の保護する機構に関するものである。
【0002】
【従来技術】
従来公知の特開平10−119619号公報には、回動中心の上方にヘッドレストを設け、回動中心の下方に衝撃を受けるプレートを設け、プレートに所定以上の衝撃荷重が係ると、ヘッドレストが前方に移動する車両用シートについて記載されている。
また、従来公知の特許2862853号公報には、回動中心の上方にヘッドレストを設け、回動中心の下方にリンク機構を設け、別途衝撃を受けるプレートを設け、プレートは所定以上の衝撃荷重が係ると、後方移動して前記リンク機構を介してヘッドレストを前方に移動させる構成について記載されている。
【0003】
【発明が解決しようとする課題】
前記特開平骨格フレーム10−119619号公報に記載されたものは、ヘッドレストを前方に移動させて頭部を支持する構成のため、回動中心支持機構と、プレートを必要とし、構造が複雑であるという課題がある。
また、前記特許2862853号公報に記載されたものは、更に、ヘッドレストを回動させるリンク機構を作動させる衝撃受プレートを設けているので、部品点数が多くなって、構造が複雑となる。また、衝撃受プレートは下部に低剛性部を形成しているが、剛性にばらつきが生じ、正確に作動しない懸念がある。即ち、壊れてみないと、変形荷重は不明であり、変形荷重が判明したプレートは使用不能であるから、作動に懸念が残るのである。
本発明は、簡単な構成で、乗員の頭部を保護するものである。
【0004】
【発明の目的】
構成の簡素化、組立の容易化、作動の確実化。
【0005】
【課題を解決するための手段】
本発明は、ヘッドレスト4を取付支持しうる骨格フレーム10の側部フレーム部11に上下に所定間隔を置いて左右方向のバネ7を並設し、該バネ7の前側に背凭クッション材12を設け、該背凭クッション材12の外周を表皮部材20により被覆した背凭シートにおいて、該背凭シートは、着座者の背中あるいは肩を支持する中央支持面5と、該中央支持面5の左右両側の側部支持面6とにより構成し、前記背凭クッション材12は、前記中央支持部5に対応する中央クッション材13を、前記左右両側の前記側部支持面6に対応する側部クッション材14と分割形成するとともに、前記背凭クッション材12は、前記中央クッション材13の左右側に位置する側部クッション材14の上部を上部クッション材16により連結して形成した固定側クッション材17と、前記側部クッション材14と略同じ高さで上下に一体状に形成した前記中央クッション材13とにより構成し、前記表皮部材20は、前記中央クッション材13の中央表皮部材21の周囲に左右の側部クッション材14を被覆する側部表皮部材22を接続させ、該接続部分は前記中央クッション材13の後方移動量を考慮して弛ませた弛み部24に形成し、該弛み部24は前記中央クッション材13の周囲と前記固定側クッション材17との間に形成した挿入溝26に挿入し、前記バネ7は通常の着座荷重は支持するが所定以上の衝撃荷重が係ると、前記ヘッドレスト4に対する前記中央支持部5の後方移動を許容するように構成した車両用シートとしたものである。
【0006】
【実施例】
本発明の実施例を図面により説明すると、1は車両用シート、2は車両用シート1の背凭シート、3は座席シートであり、背凭シート2の上部にはヘッドレスト4を設ける。
前記背凭シート2は、その着座者の背中あるいは肩を支持する中央支持面5が、左右両側の側部支持面6に対して所定以上の衝撃荷重が係ると、前記ヘッドレスト4に対して後方移動するように構成する。
【0007】
即ち、中央支持部5は、バネ7により通常の着座荷重は支持されるが所定以上の衝撃荷重が係ると、ヘッドレスト4に対して後方移動するようにする。したがって、ヘッドレスト4は衝撃荷重が係っても背凭シート2に対しては移動しないが、中央支持部5が後方移動することにより、ヘッドレスト4が乗員の頭部を支持する。
【0008】
以下、具体的に詳述すると、前記背凭シート2は、骨格フレーム10の側部フレーム部11に上下に所定間隔を置いて前記バネ7を設け、バネ7の前側に背凭クッション材12を設ける。背凭クッション材12は前記中央支持部5に対応する中央クッション材13と、中央クッション材13の左右両側の前記側部支持面6に対応する側部クッション材14により分割形成する。
【0009】
そして、バネ7は中央支持部5の中央クッション材13に掛かる通常の着座荷重は支持するが所定以上の衝撃荷重が係ると、中央クッション材13の後方移動を許容するように構成する。
実施例では、前記骨格フレーム10の上部フレーム15の前側に上部クッション材16を設け、上部クッション材16により左右の側部クッション材14の上部を連結し、上部クッション材16と側部クッション材14により固定側クッション材17を構成し、前記中央クッション材13は固定側クッション材17に対して分割形成し、前記中央クッション材13が固定側クッション材17に対して後方移動することにより、相対的に中央クッション材13はヘッドレスト4に対して後方移動するようにする。
【0010】
しかして、前記背凭クッション材12の外周には表皮部材20を被覆するが、中央クッション材13の中央表皮部材21の周囲には側部クッション材14を被覆する側部表皮部材22と上部クッション材16を被覆する上部表皮部材23を接続させ、接続部分は前記中央クッション材13の後方移動量を考慮して弛ませて弛み部24を形成し、弛み部24は中央クッション材13の周囲と固定側クッション材17との間に形成した挿入溝26に挿入する。
【0011】
しかして、ヘッドレスト4は衝撃を受けたとき前記したように骨格フレーム10に対して、位置不動であるが、図示およびその構成は省略するが、公知のごとく、ピラー30に対してヘッドレスト4を前後調節可能にすることは、勿論可能であり、着座者の着座姿勢に合わせて調節すると、頭部の支持を一層確実にでき、好適である。
【0012】
【作用】
次に作用を述べる。
車両用シート1の背凭シート2は、上部のヘッドレスト4と左右両側の側部支持面6に対して、着座者の背中あるいは肩を支持する上部中央支持面5を後方移動可能に構成し、通常着座時の上部中央支持面5は左右両側の側部支持面6に対して所定の円弧状の連続した同一面となるように位置させるが、所定以上の衝撃荷重が係ると、中央支持部5の中央クッション材13が後方移動するように構成しているから、衝撃荷重が係ると、上部中央支持面5が後方移動し、ヘッドレスト4は相対的に着座者に対して前側移動して頭部および頸部を支持する。したがって、むち打ち症の発症を防止できる。
【0013】
この場合、バネ7の前側に位置する背凭クッション材12の外周には表皮部材20を被覆するが、中央クッション材13の中央表皮部材21の周囲には側部クッション材14を被覆する側部表皮部材22と上部クッション材16を被覆する上部表皮部材23を接続させ、接続部分は中央クッション材13の後方移動量を考慮して弛ませて弛み部24を形成しているから、中央クッション材13が後方移動すると、表皮部材20の中央表皮部材21の周囲弛み部24が伸びて、中央クッション材13の後方移動に支障を与えずに円滑に移動させる。
【0014】
したがって、中央支持部5は全体的に後方移動するので、確実にヘッドレスト4は着座者の頭部および頸部を確実に支持して、むち打ち症の発症を防止できる。
即ち、フレームに低剛性部を設けても衝撃荷重が係ったときの変形態様のばらつきによって予測した変形をしないときは、中央支持部5の後方移動が確実ではないが、中央支持部5は、バネ7により通常の着座荷重は支持するが所定以上の衝撃荷重が係ると、前記ヘッドレスト4に対する後方移動を許容するように構成しているから、組付けのときに、バネ7の弾力を測定すれば、中央支持部5の後方移動する作動荷重を確実に予測でき、設定通りにすることができる。したがって、中央支持部5は、所定以上の衝撃荷重が係ると、必ず後方移動し、作動は確実である。
【0015】
また、バネ7の弾力を変更すれば、中央支持部5の作動する衝撃荷重の設定を変更できるから、車両用シート1の大きさ、着座者の体格等の諸条件に合致した車両用シート1を提供できる。また、着座者への対応も、バネ7交換ですむので、組立前にフレームを種々用意することもなく、また、組立後の変更も可能であって、製造、組立てを容易にし、在庫管理も含めて、全体のコストを低くする。
【0016】
この場合、中央クッション材13は固定側クッション材17に対して後方移動するから、小さい動きで、むち打ち症の発症を防止できる。
また、中央支持部5は、左右の側部クッション材14の上部を上部クッション材16により連結し、側部クッション材14と上部クッション材16により固定側クッション材17を構成し、固定側クッション材17に対して中央クッション材13を分割形成すればよいから、ヘッドレスト4の支持構成を変更する必要はなく、簡単な構成にできる。
【0017】
しかして、背凭クッション材12の外周には表皮部材20を被覆するが、中央クッション材13の中央表皮部材21の周囲には側部クッション材14を被覆する側部表皮部材22と上部クッション材16を被覆する上部表皮部材23を接続させ、接続部分は前記中央クッション材13の後方移動量を考慮して弛ませて弛み部24を形成しているから、中央クッション材13の移動するとき、弛み部24は伸びて全く障害とはならない。
【0018】
また、弛み部24は中央クッション材13の周囲と固定側クッション材17との間に形成した挿入溝26に挿入しているから、弛み部24を充分に長く形成できると共に、外観上全く、通常のシートと変わらず、見栄えを悪くしない。
しかして、前記したように、中央支持部5はバネ7の弾力に抗して後方移動するだけであるから、荷重により後方移動した中央支持部5は、衝撃荷重が無くなると、バネ7の弾力により元の位置に復帰する。したがって、衝撃荷重を受けたとき骨格フレーム10が変形することはないので、骨格フレーム10の初期強度を容易に維持でき、結果的に初期状態を維持しながら耐久性を向上させる。
【0019】
【効果】
本発明は、ヘッドレスト4を取付支持しうる骨格フレーム10の側部フレーム部11に上下に所定間隔を置いて左右方向のバネ7を並設し、該バネ7の前側に背凭クッション材12を設け、該背凭クッション材12の外周を表皮部材20により被覆した背凭シートにおいて、該背凭シートは、着座者の背中あるいは肩を支持する中央支持面5と、該中央支持面5の左右両側の側部支持面6とにより構成し、前記背凭クッション材12は、前記中央支持部5に対応する中央クッション材13を、前記左右両側の前記側部支持面6に対応する側部クッション材14と分割形成するとともに、前記背凭クッション材12は、前記中央クッション材13の左右側に位置する側部クッション材14の上部を上部クッション材16により連結して形成した固定側クッション材17と、前記側部クッション材14と略同じ高さで上下に一体状に形成した前記中央クッション材13とにより構成し、前記表皮部材20は、前記中央クッション材13の中央表皮部材21の周囲に左右の側部クッション材14を被覆する側部表皮部材22を接続させ、該接続部分は前記中央クッション材13の後方移動量を考慮して弛ませた弛み部24に形成し、該弛み部24は前記中央クッション材13の周囲と前記固定側クッション材17との間に形成した挿入溝26に挿入し、前記バネ7は通常の着座荷重は支持するが所定以上の衝撃荷重が係ると、前記ヘッドレスト4に対する前記中央支持部5の後方移動を許容するように構成した車両用シートとしたものであるから、バネ7の弾力を衝撃荷重に対して設定するだけであるので、中央支持部5の後方移動する作動荷重を確実に予測でき、必ず後方移動し、作動は確実であるという効果を奏し、バネとクッション材の組合せのため良好なクッション性を提供でき、クッション材を分割するだけであるから、ヘッドレスト4は固定フレーム13に装着するだけで頗る構成が簡単にでき、通常のシートとヘッドレスト4の部分を共用でき、コストを低くでき、また、前記中央支持部5は、中央クッション材13と、左右の側部クッション材14の上部を上部クッション材16により連結した固定側クッション材17とにより構成し、前記弛み部24は中央クッション材13の周囲と固定側クッション材17との間に形成した挿入溝26に挿入しているので、弛み部24の長さを充分に取ることができる。
【図面の簡単な説明】
【図1】 車両用シートの正面図。
【図2】 クッション材の斜視図。
【図3】 同縦断側面図。
【図4】 同横断平面図。
【図5】 通常の着座状態図。
【図6】 作用状態図。
【符号の説明】
1…車両用シート、2…背凭シート、3…座席シート、4…ヘッドレスト、5…中央支持部、6…側部支持面、7…バネ、10…骨格フレーム、11…側部フレーム部、12…背凭クッション材、13…中央クッション材、14…側部クッション材、16…上部クッション材、17…固定側クッション材、20…表皮部材、21…中央表皮部材、22…側部表皮部材、23…上部表皮部材、24…弛み部、26…挿入溝、30…ピラー。
[0001]
[Industrial application fields]
The present invention relates to a vehicle seat and relates to a mechanism for protecting a head when subjected to an impact load.
[0002]
[Prior art]
In the publicly known Japanese Patent Application Laid-Open No. 10-119619, a headrest is provided above the rotation center, a plate that receives an impact is provided below the rotation center, and the headrest is moved forward when a predetermined impact load is applied to the plate. The vehicle seat that moves is described.
Japanese Patent No. 2862853 discloses a headrest above the rotation center, a link mechanism below the rotation center, and a plate that receives an impact separately. The plate receives an impact load of a predetermined level or more. And the structure which moves back and moves a headrest ahead via the said link mechanism is described.
[0003]
[Problems to be solved by the invention]
The structure disclosed in Japanese Patent Laid-Open No. 10-119619 has a complicated structure because it requires a rotation center support mechanism and a plate because the headrest is moved forward to support the head. There is a problem.
Moreover, since the thing described in the said patent 2862853 gazette further provides the impact receiving plate which operates the link mechanism which rotates a headrest, a number of parts increases and a structure becomes complicated. Moreover, although the impact receiving plate has a low-rigidity portion formed in the lower part, there is a concern that the rigidity may vary and may not operate correctly. That is, if it does not break, the deformation load is unknown, and the plate for which the deformation load has been found is unusable.
The present invention protects an occupant's head with a simple configuration.
[0004]
OBJECT OF THE INVENTION
Simplification of configuration, easy assembly, and reliable operation.
[0005]
[Means for Solving the Problems]
In the present invention, left and right springs 7 are juxtaposed on a side frame portion 11 of a skeletal frame 10 on which a headrest 4 can be attached and supported at a predetermined interval in the vertical direction, and a dorsal cushion material 12 is provided on the front side of the spring 7. In the dorsal seat provided by covering the outer periphery of the dorsal cushion material 12 with the skin member 20, the dorsal seat includes the central support surface 5 that supports the back or shoulder of the seated person and the left and right sides of the central support surface 5. constituted by the sides of the side support surface 6, the backrest cushion member 12, the central cushion material 13 corresponding to the central support portion 5, the side cushion corresponding to the side support surface 6 of the left and right sides with split form with product 14, the backrest cushion material 12, forming the upper side cushion material 14 located on the left and right side of the central cushion member 13 joined by upper cushion member 16 And Jogawa cushion material 17, constituted by said central cushion member 13 formed in one piece up and down substantially at the same height as the side cushioning material 14, the skin member 20 has a central epidermis of the central cushion member 13 A side skin member 22 that covers the left and right side cushion members 14 is connected around the member 21, and the connecting portion is formed in a slack portion 24 that is slackened in consideration of the rearward movement amount of the central cushion member 13. ,該弛see section 24 is inserted into the insertion groove 26 formed between the fixed-side cushion member 17 and the periphery of the central cushion member 13, the spring 7 is normal seating load impact load is more than the predetermined supporting Therefore, the vehicle seat is configured to allow backward movement of the central support portion 5 with respect to the headrest 4.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a vehicle seat, 2 denotes a back seat of the vehicle seat 1, 3 denotes a seat seat, and a headrest 4 is provided above the back seat 2.
When the center support surface 5 that supports the back or shoulder of the seated person is subjected to an impact load greater than or equal to the side support surfaces 6 on the left and right sides, Configure to move.
[0007]
That is, the center support portion 5 is supported by the spring 7 for a normal seating load, but moves backward with respect to the headrest 4 when an impact load of a predetermined level or more is applied. Therefore, the headrest 4 does not move relative to the dorsal seat 2 even when an impact load is applied, but the headrest 4 supports the head of the occupant when the center support portion 5 moves backward.
[0008]
The backrest seat 2 will be described in detail below. The backrest seat 2 is provided with the springs 7 on the side frame portions 11 of the skeletal frame 10 at a predetermined interval in the vertical direction. Provide. The dorsal cushion material 12 is divided and formed by a central cushion material 13 corresponding to the central support portion 5 and side cushion materials 14 corresponding to the side support surfaces 6 on the left and right sides of the central cushion material 13.
[0009]
The spring 7 is configured to support a normal seating load applied to the central cushion member 13 of the central support portion 5 but to allow the central cushion member 13 to move backward when an impact load of a predetermined level or more is applied.
In the embodiment, an upper cushion material 16 is provided on the front side of the upper frame 15 of the skeleton frame 10, the upper portions of the left and right side cushion materials 14 are connected by the upper cushion material 16, and the upper cushion material 16 and the side cushion materials 14 are connected. And the central cushion material 13 is formed separately from the fixed cushion material 17, and the central cushion material 13 moves backward relative to the fixed cushion material 17. Further, the central cushion member 13 is moved backward with respect to the headrest 4.
[0010]
Accordingly, the outer skin member 20 is covered on the outer periphery of the dorsal cushion material 12, but the side skin member 22 and the upper cushion that cover the side cushion material 14 are disposed around the central skin member 21 of the central cushion material 13. The upper skin member 23 that covers the material 16 is connected, and the connection portion is slackened in consideration of the rearward movement amount of the central cushion material 13 to form a slack portion 24, and the slack portion 24 is connected to the periphery of the central cushion material 13. It inserts in the insertion groove | channel 26 formed between the stationary-side cushion materials 17.
[0011]
As described above, the headrest 4 is stationary with respect to the skeleton frame 10 when subjected to an impact, but the illustration and the configuration thereof are omitted. Needless to say, it is possible to make the adjustment possible, and it is preferable to adjust according to the seating posture of the seated person because the support of the head can be further ensured.
[0012]
[Action]
Next, the operation will be described.
The dorsal seat 2 of the vehicle seat 1 is configured such that the upper central support surface 5 that supports the back or shoulder of the seated person can be moved backward relative to the upper headrest 4 and the side support surfaces 6 on the left and right sides, The upper center support surface 5 at the time of normal seating is positioned so as to be a predetermined arc-shaped continuous same surface with respect to the left and right side support surfaces 6. 5 is configured such that the central cushion member 13 moves rearward, so that when an impact load is applied, the upper central support surface 5 moves rearward, and the headrest 4 moves forward relative to the seated person to move the head. Support the head and neck. Therefore, the onset of whiplash can be prevented.
[0013]
In this case, the outer periphery of the dorsal cushion material 12 located on the front side of the spring 7 is covered with the skin member 20, but the side portion of the central cushion material 13 that covers the side cushion material 14 is covered around the central skin member 21. Since the upper skin member 23 that covers the upper skin member 22 and the upper cushion material 16 is connected and the connecting portion is slackened in consideration of the rearward movement amount of the central cushion material 13 to form the slack portion 24, the central cushion material When 13 moves backward, the slack portion 24 around the central skin member 21 of the skin member 20 extends and moves smoothly without hindering the rear movement of the central cushion member 13.
[0014]
Therefore, since the central support portion 5 moves backward as a whole, the headrest 4 reliably supports the head and neck of the seated person and can prevent the occurrence of whiplash.
That is, even if a low-rigidity portion is provided on the frame, if the deformation predicted by the variation in deformation mode when an impact load is applied is not predicted, the central support portion 5 is not surely moved backward, but the central support portion 5 The normal seating load is supported by the spring 7, but when the impact load more than a predetermined value is applied, the rearward movement with respect to the headrest 4 is allowed, so the elasticity of the spring 7 is measured at the time of assembly. By doing so, it is possible to reliably predict the operating load that moves rearward of the central support portion 5, and to make it as set. Therefore, the center support portion 5 always moves backward when an impact load of a predetermined level or more is applied, and the operation is reliable.
[0015]
Further, if the elasticity of the spring 7 is changed, the setting of the impact load at which the central support portion 5 operates can be changed. Therefore, the vehicle seat 1 that matches various conditions such as the size of the vehicle seat 1 and the physique of the seated person. Can provide. In addition, since the spring 7 can be exchanged for the seated person, there is no need to prepare various frames before assembling, and changes after assembling are possible, facilitating manufacturing and assembling, and inventory management. Including the total cost.
[0016]
In this case, since the central cushion member 13 moves rearward with respect to the fixed cushion member 17, the onset of whiplash can be prevented with a small movement.
Moreover, the center support part 5 connects the upper part of the side cushion material 14 on either side with the upper cushion material 16, and comprises the fixed cushion material 17 with the side cushion material 14 and the upper cushion material 16, and fixed side cushion material. Since the central cushion member 13 may be divided and formed with respect to 17, it is not necessary to change the support configuration of the headrest 4, and a simple configuration can be achieved.
[0017]
Therefore, the outer skin member 20 is covered on the outer periphery of the dorsal cushion material 12, but the side skin member 22 and the upper cushion material covering the side cushion material 14 are surrounded around the central skin member 21 of the central cushion material 13. Since the upper skin member 23 that covers 16 is connected and the connecting portion is slackened in consideration of the rearward movement amount of the central cushion material 13 to form the slack portion 24, when the central cushion material 13 moves, The slack portion 24 extends and does not become an obstacle at all.
[0018]
Further, since the slack portion 24 is inserted into the insertion groove 26 formed between the periphery of the central cushion material 13 and the fixed cushion material 17, the slack portion 24 can be formed sufficiently long, and the appearance is usually quite normal. It does not change the appearance of the sheet and does not deteriorate the appearance.
Thus, as described above, the central support portion 5 only moves backward against the elasticity of the spring 7, so that the central support portion 5 that has moved backward due to the load loses the elasticity of the spring 7 when there is no impact load. To return to the original position. Therefore, since the skeleton frame 10 is not deformed when receiving an impact load, the initial strength of the skeleton frame 10 can be easily maintained, and as a result, durability is improved while maintaining the initial state.
[0019]
【effect】
In the present invention, left and right springs 7 are juxtaposed on a side frame portion 11 of a skeletal frame 10 on which a headrest 4 can be attached and supported at a predetermined interval in the vertical direction, and a dorsal cushion material 12 is provided on the front side of the spring 7. In the dorsal seat provided by covering the outer periphery of the dorsal cushion material 12 with the skin member 20, the dorsal seat includes the central support surface 5 that supports the back or shoulder of the seated person and the left and right sides of the central support surface 5. constituted by the sides of the side support surface 6, the backrest cushion member 12, the central cushion material 13 corresponding to the central support portion 5, the side cushion corresponding to the side support surface 6 of the left and right sides with split form with product 14, the backrest cushion material 12, forming the upper side cushion material 14 located on the left and right side of the central cushion member 13 joined by upper cushion member 16 And Jogawa cushion material 17, constituted by said central cushion member 13 formed in one piece up and down substantially at the same height as the side cushioning material 14, the skin member 20 has a central epidermis of the central cushion member 13 A side skin member 22 that covers the left and right side cushion members 14 is connected around the member 21, and the connecting portion is formed in a slack portion 24 that is slackened in consideration of the rearward movement amount of the central cushion member 13. ,該弛see section 24 is inserted into the insertion groove 26 formed between the fixed-side cushion member 17 and the periphery of the central cushion member 13, the spring 7 is normal seating load impact load is more than the predetermined supporting Therefore, the elastic force of the spring 7 is set with respect to the impact load because the vehicle seat is configured to allow the central support 5 to move backward with respect to the headrest 4. As a result, it is possible to reliably predict the operation load that moves backward of the central support 5, always moving backward, and the operation is reliable, providing a good cushioning property due to the combination of spring and cushion material can, because only dividing the cushion material, the headrest 4 is extremely configurable to easily by simply attaching the fixed frame 13, can be shared portion of the conventional seat and headrest 4, can be lowered costs, also the The central support portion 5 includes a central cushion material 13 and a fixed-side cushion material 17 in which upper portions of the left and right side cushion materials 14 are connected by an upper cushion material 16, and the slack portion 24 is around the central cushion material 13. And the fixed cushion member 17 are inserted into the insertion groove 26, so that the length of the slack portion 24 can be sufficiently taken.
[Brief description of the drawings]
FIG. 1 is a front view of a vehicle seat.
FIG. 2 is a perspective view of a cushion material.
FIG. 3 is a side view of the same longitudinal section.
FIG. 4 is a cross-sectional plan view of the same.
FIG. 5 is a normal sitting state diagram.
FIG. 6 is an operational state diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vehicle seat, 2 ... Back seat, 3 ... Seat seat, 4 ... Headrest, 5 ... Center support part, 6 ... Side support surface, 7 ... Spring, 10 ... Skeletal frame, 11 ... Side frame part, DESCRIPTION OF SYMBOLS 12 ... Back cushion material, 13 ... Center cushion material, 14 ... Side cushion material, 16 ... Upper cushion material, 17 ... Fixed side cushion material, 20 ... Skin member, 21 ... Center skin member, 22 ... Side skin member , 23 ... upper skin member, 24 ... slack portion, 26 ... insertion groove, 30 ... pillar.

Claims (1)

ヘッドレスト4を取付支持しうる骨格フレーム10の側部フレーム部11に上下に所定間隔を置いて左右方向のバネ7を並設し、該バネ7の前側に背凭クッション材12を設け、該背凭クッション材12の外周を表皮部材20により被覆した背凭シートにおいて、該背凭シートは、着座者の背中あるいは肩を支持する中央支持面5と、該中央支持面5の左右両側の側部支持面6とにより構成し、前記背凭クッション材12は、前記中央支持部5に対応する中央クッション材13を、前記左右両側の前記側部支持面6に対応する側部クッション材14と分割形成するとともに、前記背凭クッション材12は、前記中央クッション材13の左右側に位置する側部クッション材14の上部を上部クッション材16により連結して形成した固定側クッション材17と、前記側部クッション材14と略同じ高さで上下に一体状に形成した前記中央クッション材13とにより構成し、前記表皮部材20は、前記中央クッション材13の中央表皮部材21の周囲に左右の側部クッション材14を被覆する側部表皮部材22を接続させ、該接続部分は前記中央クッション材13の後方移動量を考慮して弛ませた弛み部24に形成し、該弛み部24は前記中央クッション材13の周囲と前記固定側クッション材17との間に形成した挿入溝26に挿入し、前記バネ7は通常の着座荷重は支持するが所定以上の衝撃荷重が係ると、前記ヘッドレスト4に対する前記中央支持部5の後方移動を許容するように構成した車両用シート。Left and right springs 7 are juxtaposed on the side frame portion 11 of the skeletal frame 10 on which the headrest 4 can be attached and supported at a predetermined interval in the vertical direction, and a dorsal cushion material 12 is provided on the front side of the spring 7. In the dorsal fin sheet in which the outer periphery of the heel cushion material 12 is covered with the skin member 20, the dorsal fin sheet includes a central support surface 5 that supports the back or shoulder of the seated person, and left and right side portions of the central support surface 5. constituted by the supporting surface 6, the backrest cushion material 12, a central cushion member 13 corresponding to the central support portion 5, the side cushioning material 14 corresponding to the side support surface 6 of the right and left side dividing and forming the backrest cushion material 12, fixed-side cookie that forming the upper side cushion material 14 located on the left and right side of the central cushion member 13 joined by upper cushion member 16 And ® emission material 17, constituted by said central cushion member 13 formed in one piece up and down substantially at the same height as the side cushioning material 14, the skin member 20 includes a central skin member of the middle cushion member 13 A side skin member 22 that covers the left and right side cushion members 14 is connected around 21, and the connecting portion is formed in a slack portion 24 that is slackened in consideration of the rearward movement amount of the central cushion member 13,該弛see section 24 is inserted into the insertion groove 26 formed between the fixed-side cushion member 17 and the periphery of the central cushion member 13, the spring 7 is normal seating load impact load is more than the predetermined supporting In this case, the vehicle seat is configured to allow the center support portion 5 to move backward with respect to the headrest 4.
JP36736399A 1999-12-24 1999-12-24 Vehicle seat Expired - Fee Related JP4333891B2 (en)

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JP2001180351A5 JP2001180351A5 (en) 2007-01-18
JP4333891B2 true JP4333891B2 (en) 2009-09-16

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JP5363778B2 (en) * 2008-09-30 2013-12-11 テイ・エス テック株式会社 Vehicle seat
JP5363777B2 (en) * 2008-09-30 2013-12-11 テイ・エス テック株式会社 Vehicle seat
JP5372542B2 (en) * 2009-02-04 2013-12-18 テイ・エス テック株式会社 Vehicle seat

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