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JP2006026315A - Lumbar support for automobile - Google Patents

Lumbar support for automobile Download PDF

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Publication number
JP2006026315A
JP2006026315A JP2004213458A JP2004213458A JP2006026315A JP 2006026315 A JP2006026315 A JP 2006026315A JP 2004213458 A JP2004213458 A JP 2004213458A JP 2004213458 A JP2004213458 A JP 2004213458A JP 2006026315 A JP2006026315 A JP 2006026315A
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JP
Japan
Prior art keywords
main body
support member
base member
planar support
seat back
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Pending
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JP2004213458A
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Japanese (ja)
Inventor
Nobuyuki Nakano
中野　伸行
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Johnson Controls Technology Co
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Johnson Controls Technology Co
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Priority to JP2004213458A priority Critical patent/JP2006026315A/en
Priority to PCT/JP2004/013359 priority patent/WO2006008835A1/en
Publication of JP2006026315A publication Critical patent/JP2006026315A/en
Pending legal-status Critical Current

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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
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/666—Lumbar supports vertically adjustable
    • 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
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces
    • B60N2/6671—Lumbar supports having flexible support member bowed by applied forces with cable actuators

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lumbar support for an automobile improving a stroke feeling when a large input is applied to a seat. <P>SOLUTION: This lumbar support comprises a base member 6 formed of body parts 9 and 9' and a connecting part 10 into an approximately U-shape, a planar support member 7 laid on a base member 6 and being vertically movable, and a control means 8 controllable in projecting distance in the front/rear direction of the planar support member 7. The base member 6 is formed by supporting the body parts 9 and 9' at a seat back 1, the support part of the body parts 9 and 9' is supported at a lower frame 3c of the seat back 1, a connecting part 10 is retained by a stopper part 13 fixed to the lower frame 3c, and an energizing means 21 constantly energizing a lower end 15 of the planar support member 7 in the lifting direction is disposed between the body parts 9 and 9' of the base member 6 disposed on the lower side of the lower end 15 of the planar support member 7 and the lower end 15 of the planar support member 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、自動車用ランバーサポートに関する。   The present invention relates to an automotive lumbar support.

自動車用ランバーサポートとしては、縦状に並列に配される本体部及び該本体部の下端部を連結する連結部によりシートバックの正面から見て略Ｕ字状をなすバネ綱よりなるベース部材と、ベース部材を横切るように架設されてなると共に上下に移動可能なる面状サポート部材と、該面状サポート部材の前後方向の突出量を制御可能なる制御手段とより構成されてなり、前記ベース部材は、シートバックのサイドフレーム間を懸架してなる略Ｓ字スプリングに本体部の上端部がそれぞれ支持されてなり、シートバックのロアフレームに本体部の下端側の支持部が支持されてなると共に前記連結部を前記ロアフレームに固設したストッパ部で保持されてなる（例えば、特許文献１。）。
国際特許９８／０９８３８号公報 As a lumbar support for automobiles, a base member made of a spring rope having a substantially U-shape when viewed from the front of a seat back by a main body portion arranged in parallel in a vertical shape and a connecting portion connecting the lower end portions of the main body portion; The base member comprises: a planar support member that extends across the base member and is movable up and down; and a control means that can control the amount of protrusion of the planar support member in the front-rear direction. The upper end of the main body is supported by a substantially S-shaped spring that is suspended between the side frames of the seat back, and the lower end of the main body is supported by the lower frame of the seat back. The connecting portion is held by a stopper portion fixed to the lower frame (for example, Patent Document 1).
International Patent No. 98/09838

しかしながら、このような従来のランバーサポートを備えた自動車にあっては、走行時の急加速時や緩いＳ字などの道を高速で走り抜ける時或いは路面の段差部分を乗り越えることで自動車が突き上げられる時など、大きな入力が着座した乗員に加わわることで、ランバーサポートへ大きな荷重が加わると、ランバーサポートのサポート部はベース部材の下端部に突き当たってしまい、衝撃レベルが高まると共に所謂底づき感が生じてしまうおそれがある。   However, in the case of a vehicle equipped with such a conventional lumbar support, when the vehicle is pushed up by sudden acceleration during traveling, when driving through a road such as a loose S-shaped at a high speed, or over the stepped portion of the road surface When a large load is applied to the seated occupant, for example, when a large load is applied to the lumbar support, the support portion of the lumbar support hits the lower end of the base member, and the impact level increases and a so-called feeling of bottoming occurs. There is a risk that.

この発明は、このような従来の技術の問題点に着目してなされたものであり、シートへの大入力時のストローク感が向上する自動車用ランバーサポートを提供するものである。   The present invention has been made paying attention to such problems of the prior art, and provides an automotive lumbar support that improves the feeling of stroke when a large input is made to a seat.

かかる従来技術を解決するために、請求項１に記載の発明は、縦状に並列に配される本体部及び該本体部の下端部を連結する連結部によりシートバックの正面から見て略Ｕ字状をなすバネ綱よりなるベース部材と、ベース部材を横切るように架設されてなると共に上下に移動可能なる面状サポート部材と、該面状サポート部材の前後方向の突出量を制御可能なる制御手段とより構成されてなり、前記ベース部材は、シートバックに本体部の上端部がそれぞれ支持されてなり、シートバックのロアフレームに本体部の下端側の支持部が支持されてなると共に前記連結部を前記ロアフレームに固設したストッパ部で保持されてなる自動車用ランバーサポートにおいて、前記面状サポート部材の下端部より下側に配されている前記ベース部材の本体部と前記面状サポート部材の下端部との間に、該下端部を常時持ち上げる方向に付勢してなる付勢手段を配設してなることを特徴とする。   In order to solve such a conventional technique, the invention according to claim 1 is substantially U when viewed from the front of the seat back by a main body portion arranged in parallel in a vertical shape and a connecting portion connecting the lower end portions of the main body portion. A base member made of a spring rope in the shape of a letter, a planar support member that is constructed so as to cross the base member and that can move up and down, and a control that can control the amount of protrusion in the front-rear direction of the planar support member The base member is configured such that the upper end of the main body is supported by the seat back, the lower frame of the main body is supported by the lower frame of the seat back, and the coupling is performed. The base member main body disposed below the lower end portion of the planar support member in an automotive lumbar support, which is held by a stopper portion fixed to the lower frame. And between the lower end portion of the planar support member, and characterized by being provided biasing means formed by biased in a direction lifting the lower end portion constantly.

請求項２に記載の発明は、請求項１に記載の自動車用ランバーサポートであって、前記付勢手段は、コイル状のスプリングよりなることを特徴とする。   A second aspect of the present invention is the automotive lumbar support according to the first aspect, wherein the urging means comprises a coiled spring.

請求項１に記載の発明によれば、面状サポート部材の下端部より下側に配されているベース部材の本体部と面状サポート部材の下端部との間に、該下端部を常時持ち上げる方向に付勢してなる付勢手段を配設してなるので、ランバーサポートへ大きな荷重が加わっても、ランバーサポートの面状サポート部材は、ベース部材の本体部に沿って下側に移動可能であり、衝撃レベルが吸収できると共に所謂底づき感が生じてしまわず、シートへの大入力時のストローク感が向上する。   According to the first aspect of the present invention, the lower end portion is always lifted between the main body portion of the base member disposed below the lower end portion of the planar support member and the lower end portion of the planar support member. Since the biasing means that biases in the direction is arranged, even if a large load is applied to the lumbar support, the planar support member of the lumbar support can move downward along the main body of the base member Thus, the impact level can be absorbed and a so-called bottom-out feeling does not occur, and the stroke feeling at the time of large input to the seat is improved.

請求項２に記載の発明によれば、付勢手段は、コイル状のスプリングよりなるので、ベース部材の本体部に確実に支持できることになる。   According to the second aspect of the present invention, since the urging means is formed of a coiled spring, it can be reliably supported on the main body portion of the base member.

シートへの大入力時のストローク感が向上する自動車用ランバーサポートを提供するという目的を、縦状に並列に配される本体部及び該本体部の下端部を連結する連結部によりシートバックの正面から見て略Ｕ字状をなすバネ綱よりなるベース部材と、ベース部材を横切るように架設されてなると共に上下に移動可能なる面状サポート部材と、該面状サポート部材の前後方向の突出量を制御可能なる制御手段とより構成されてなり、前記ベース部材は、シートバックに本体部の上端部がそれぞれ支持されてなり、シートバックのロアフレームに本体部の下端側の支持部が支持されてなると共に前記連結部を前記ロアフレームに固設したストッパ部で保持されてなる自動車用ランバーサポートにおいて、前記面状サポート部材の下端部より下側に配されている前記ベース部材の本体部と前記面状サポート部材の下端部との間に、該下端部を常時持ち上げる方向に付勢してなる付勢手段を配設してなることにより、実現した。   For the purpose of providing an automotive lumbar support that improves the feeling of stroke when a large input is made to the seat, the front portion of the seat back is provided by a main body portion arranged in parallel in a vertical shape and a connecting portion connecting the lower end portions of the main body portion. A base member made of a spring rope having a substantially U shape when viewed from above, a planar support member that is constructed so as to cross the base member and that can move up and down, and a protrusion amount in the front-rear direction of the planar support member The base member is configured such that the upper end portion of the main body is supported by the seat back, and the lower end support portion of the main body is supported by the lower frame of the seat back. And a lumbar support for automobiles, in which the connecting portion is held by a stopper portion fixed to the lower frame, below the lower end portion of the planar support member. Realized by arranging an urging means for urging the lower end portion in the direction of constantly lifting between the main body portion of the base member and the lower end portion of the planar support member. did.

図１及び図２は、この発明の一実施例の自動車用ランバーサポートを示した図面である。符号１は自動車のシートバック、符号２はランバーサポートである。尚、ＦＲを前側、ＲＲを後ろ側、ＵＰは上側、ＬＷＲは下側として説明する。   1 and 2 are drawings showing a lumbar support for an automobile according to an embodiment of the present invention. Reference numeral 1 denotes an automobile seat back, and reference numeral 2 denotes a lumbar support. In the following description, FR is the front side, RR is the rear side, UP is the upper side, and LWR is the lower side.

該シートバック１は、シートバックフレーム３と、該シートバックフレーム３の前後に配されてなるポリウレタンフォームなどより形成されてなる図示しないパッドと、該パッドを覆う同じく図示しない布製などの表皮とより少なくとも形成される。   The seat back 1 includes a seat back frame 3, a pad (not shown) formed of polyurethane foam or the like disposed before and after the seat back frame 3, and a cover made of cloth (not shown) covering the pad. At least formed.

前記シートバックフレーム３は、左右に直線状に延在されてなるアッパフレーム３ａと、該アッパフレーム３ａの左右端部より垂下された位置に配設されてなる略左右対称形状のサイドフレーム３ｂ、３ｂ’と、該サイドフレーム３ｂ、３ｂ’の下端部間に架設されてなるロアフレーム３ｃとよりなる。   The seat back frame 3 includes an upper frame 3a that extends in a straight line from side to side, and a side frame 3b that has a substantially symmetrical shape that is disposed at a position that is suspended from the left and right ends of the upper frame 3a. 3b 'and a lower frame 3c constructed between the lower ends of the side frames 3b and 3b'.

前記サイドフレーム３ｂ、３ｂ’の内側の面それぞれには、鉄板によりプレート状に形成されてなるスプリングフック４，４が支持されている。該スプリングフック４，４それぞれには、Ｓ字状スプリング５，５を介して前記ランバーサポート２が支持されている。   On the inner surfaces of the side frames 3b and 3b ', spring hooks 4 and 4 formed in a plate shape by an iron plate are supported. The lumbar support 2 is supported on the spring hooks 4, 4 via S-shaped springs 5, 5.

該ランバーサポート２は、バネ綱よりなるベース部材６と、面状サポート部材７と、制御手段８とより構成されてなる。   The lumbar support 2 includes a base member 6 made of a spring rope, a planar support member 7 and a control means 8.

前記ベース部材６は、縦状に並列に配される本体部９，９’及び該本体部９，９’の下端部９ａ，９’ａを連結する連結部１０によりシートバック１の正面から見て（図１の状態）略Ｕ字状をなす。前記本体部９，９’の上端部９ｂ，９’ｂには、前記Ｓ字状スプリング５，５に固定されたブラケット１１，１１の下穴（図示省略）に螺合されてなるビス１２に係合支持されてなる支持部（図示省略）が形成されてなる。前記本体部９，９’の下端部９ａ，９’ａ側には、前記シートバック１のロアフレーム３ｃの下穴（図示省略）に螺合されてなるビス１２に係合支持されてなる支持部（図示省略）が形成されてなる。前記連結部１０は、前記ロアフレーム３ｃに溶接により固設したストッパ部１３で保持されてなる。   The base member 6 is viewed from the front of the seat back 1 by the main body portions 9, 9 'arranged in parallel in the vertical shape and the connecting portion 10 connecting the lower end portions 9a, 9'a of the main body portions 9, 9'. (State shown in FIG. 1) is substantially U-shaped. The upper end portions 9b and 9'b of the main body portions 9 and 9 'are screwed into screws 12 which are screwed into lower holes (not shown) of the brackets 11 and 11 fixed to the S-shaped springs 5 and 5, respectively. A support portion (not shown) that is engaged and supported is formed. Supports that are engaged and supported by screws 12 that are screwed into lower holes (not shown) of the lower frame 3c of the seat back 1 on the lower end portions 9a, 9'a side of the main body portions 9, 9 '. A part (not shown) is formed. The connecting portion 10 is held by a stopper portion 13 fixed to the lower frame 3c by welding.

前記面状サポート部材７は、前記ベース部材６の本体部９，９’の上端部９ｂ，９’ｂ近傍の縦状の部分を横切るように架設されてなることで上下動可能なる第１部材１４と、前記ベース部材６の本体部９，９’の下端部９ａ，９’ａを横切るように架設されてなることで上下動可能なる第２部材１５と、該第１、第２部材１４、１５間を架橋されてなるサポート基部１６と、該サポート基部１６に係止され且つサポート基部１６を横切るように６本が上下に離間して架設されてなるサポート本体１７とより構成されてなる。   The planar support member 7 is a first member that can move up and down by being constructed so as to cross a vertical portion in the vicinity of the upper end portions 9b and 9'b of the main body portions 9 and 9 'of the base member 6. 14, a second member 15 that can be moved up and down by being laid across the lower end portions 9 a and 9 ′ of the main body portions 9 and 9 ′ of the base member 6, and the first and second members 14. , 15 and a support base portion 16 which is cross-linked, and a support main body 17 which is locked to the support base portion 16 and is installed so as to cross the support base portion 16 so as to be spaced apart vertically. .

前記制御手段８は、前記サイドフレーム３ｂ’に回転自在に支持されたレバー状の操作部１８と、該操作部１８を所定の回転角度に保持可能なる制御部１９と、該制御部１９に一端部が連結され且つ前記第１部材１４に他端部が連結されてなるケーブル２０とより構成され、操作部１８を操作すると制御部１９を介してケーブル２０が移動し、第１部材１４の上下高さを制御することで、第１部材１４に支持された面状サポート部材７の形成する前側へのせり出し量を制御できるようになっている。   The control means 8 includes a lever-like operation unit 18 rotatably supported by the side frame 3b ′, a control unit 19 capable of holding the operation unit 18 at a predetermined rotation angle, and one end on the control unit 19. And a cable 20 having the other end connected to the first member 14. When the operation unit 18 is operated, the cable 20 moves via the control unit 19, and the first member 14 is moved up and down. By controlling the height, the amount of protrusion to the front side formed by the planar support member 7 supported by the first member 14 can be controlled.

前記面状サポート部材７の下端部の第２部材１５より下側に配されている前記ベース部材６の本体部９，９’の下端部９ａ，９’ａと前記面状サポート部材７の下端部の第２部材１５との間に、該第２部材１５を常時持ち上げる方向に付勢してなる付勢手段としてのコイルスプリング２１を配設してなる。   Lower end portions 9a and 9'a of the main body portions 9 and 9 'of the base member 6 and the lower end of the planar support member 7 disposed below the second member 15 at the lower end portion of the planar support member 7 A coil spring 21 is disposed between the second member 15 as a biasing means that biases the second member 15 in a direction in which the second member 15 is always lifted.

次に、この実施例に係る作動を説明する。   Next, the operation according to this embodiment will be described.

面状サポート部材７の下端部の第２部材１５より下側に配されているベース部材６の本体部９，９’の下端部９ａ，９’ａと前記面状サポート部材７の下端部の第２部材１５との間に、該第２部材１５を常時持ち上げる方向に付勢してなる付勢手段としてのコイルスプリング２１を配設してなるので、ランバーサポート２へ走行時の急加速時や緩いＳ字などの道を高速で走り抜ける時或いは路面の段差部分を乗り越えることで自動車が突き上げられる時などの大きな荷重が加わっても、ランバーサポート２の面状サポート部材７を後側に移動できることで、ベース部材６の本体部９，９’の下端部９ａ，９’ａに沿って下側に移動可能であり、衝撃レベルが吸収できると共に所謂底づき感が生じてしまわず、シートへの大入力時のストローク感が向上する。   The lower end portions 9a and 9'a of the main body portions 9 and 9 'of the base member 6 disposed below the second member 15 at the lower end portion of the planar support member 7 and the lower end portions of the planar support member 7 A coil spring 21 is disposed between the second member 15 as a biasing means that constantly biases the second member 15 in the direction in which the second member 15 is always lifted. The planar support member 7 of the lumbar support 2 can be moved rearward even when a large load is applied, such as when driving through a road such as a sloppy S at a high speed or when a car is pushed up by climbing over a step on the road surface. Thus, the base member 6 can be moved downward along the lower end portions 9a and 9'a of the main body portions 9 and 9 'so that the impact level can be absorbed and a so-called bottoming feeling does not occur. Stroke during large input There is improved.

付勢手段であるスプリング２１は、コイル状であるので、ベース部材６の本体部９，９’の下端部９ａ，９’ａに係合し易くなるので、ベース部材６の本体部９，９’の下端部９ａ，９’ａに確実に支持できることになる。   Since the spring 21 serving as the urging means is coiled, the spring 21 is easily engaged with the lower end portions 9a and 9'a of the main body portions 9 and 9 'of the base member 6, so that the main body portions 9 and 9 of the base member 6 are engaged. It will be possible to reliably support the lower end portions 9a, 9'a.

この発明の一実施例に係る自動車用ランバーサポートを示す正面図。The front view which shows the lumbar support for motor vehicles based on one Example of this invention. 図１のＳＡ−ＳＡ線に沿った断面図。Sectional drawing along the SA-SA line of FIG.

符号の説明Explanation of symbols

１ 自動車のシートバック
２ ランバーサポート
３ シートバックフレーム
３ａ シートバックフレームのアッパフレーム
３ｂ、３ｂ’ シートバックフレームのサイドフレーム
３ｃ シートバックフレームのロアフレーム
５ Ｓ字状スプリング
６ ベース部材
７ 面状サポート部材
８ 制御手段
９，９’ 本体部
９ａ，９’ａ 本体部の下端部
９ｂ，９’ｂ 本体部の上端部
１０ 連結部
１４ 面状サポート部材の第１部材
１５ 面状サポート部材の第２部材（下端部）
１６ 面状サポート部材のサポート基部
１７ 面状サポート部材のサポート本体
２１ 付勢手段としてのコイルスプリング DESCRIPTION OF SYMBOLS 1 Automobile seat back 2 Lumber support 3 Seat back frame 3a Seat back frame upper frame 3b, 3b 'Side frame of seat back frame 3c Lower frame of seat back frame 5 S-shaped spring 6 Base member 7 Planar support member 8 Control means 9, 9 'Main body 9a, 9'a Lower end 9b, 9'b Main body upper end 10 Connection 14 First member of planar support member 15 Second member of planar support member ( Bottom edge)
16 Support base of planar support member 17 Support body of planar support member 21 Coil spring as urging means

Claims (2)

縦状に並列に配される本体部及び該本体部の下端部を連結する連結部によりシートバックの正面から見て略Ｕ字状をなすバネ綱よりなるベース部材と、ベース部材を横切るように架設されてなると共に上下に移動可能なる面状サポート部材と、該面状サポート部材の前後方向の突出量を制御可能なる制御手段とより構成されてなり、前記ベース部材は、シートバックに本体部の上端部がそれぞれ支持されてなり、シートバックのロアフレームに本体部の下端側の支持部が支持されてなると共に前記連結部を前記ロアフレームに固設したストッパ部で保持されてなる自動車用ランバーサポートにおいて、
前記面状サポート部材の下端部より下側に配されている前記ベース部材の本体部と前記面状サポート部材の下端部との間に、該下端部を常時持ち上げる方向に付勢してなる付勢手段を配設してなることを特徴とする自動車用ランバーサポート。 A base member made of a spring rope having a substantially U shape when viewed from the front of the seat back by a main body portion arranged in parallel in the vertical direction and a connecting portion connecting the lower end portions of the main body portion, and so as to cross the base member It is constructed by a planar support member that is constructed and movable up and down, and a control means that can control the amount of protrusion of the planar support member in the front-rear direction. The upper end portion of the vehicle body is supported, the lower end side support portion of the main body portion is supported by the lower frame of the seat back, and the connecting portion is held by the stopper portion fixed to the lower frame. In lumbar support,
Between the main body part of the base member and the lower end part of the planar support member, which are arranged below the lower end part of the planar support member, the lower end part is urged in a direction in which the lower end part is always lifted. A lumbar support for automobiles, characterized by comprising a biasing means. 請求項１に記載の自動車用ランバーサポートであって、
前記付勢手段は、コイル状のスプリングよりなることを特徴とする自動車用ランバーサポート。 The lumbar support for automobiles according to claim 1,
The lumbar support for automobiles, wherein the urging means comprises a coiled spring.
JP2004213458A 2004-07-21 2004-07-21 Lumbar support for automobile Pending JP2006026315A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004213458A JP2006026315A (en) 2004-07-21 2004-07-21 Lumbar support for automobile
PCT/JP2004/013359 WO2006008835A1 (en) 2004-07-21 2004-09-14 Lumbar support for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004213458A JP2006026315A (en) 2004-07-21 2004-07-21 Lumbar support for automobile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101199907B1 (en) 2011-01-21 2012-11-09 (주)디에스시 Wire suspension assembly for car seat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394829B (en) * 1989-08-04 1992-06-25 Schuster Wilhelm BACKREST FOR A VEHICLE SEAT, WITH AN ADJUSTABLE LUMBAR REST
JP2001253282A (en) * 2000-03-14 2001-09-18 Johnson Controls Automotive Systems Corp Seat back for automobile
US6676214B2 (en) * 2001-11-16 2004-01-13 L & P Property Management Company Method and apparatus for lumbar support with integrated actuator housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101199907B1 (en) 2011-01-21 2012-11-09 (주)디에스시 Wire suspension assembly for car seat

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