JP6046445B2 - Vehicle seat - Google Patents

Vehicle seat Download PDF

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JP6046445B2
JP6046445B2 JP2012235502A JP2012235502A JP6046445B2 JP 6046445 B2 JP6046445 B2 JP 6046445B2 JP 2012235502 A JP2012235502 A JP 2012235502A JP 2012235502 A JP2012235502 A JP 2012235502A JP 6046445 B2 JP6046445 B2 JP 6046445B2
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leg
seat cushion
floor
seat
control mechanism
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JP2014083286A (en
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裕也 金井
裕也 金井
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Johnson Controls Technology Co
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Description

本発明は、自動車等の乗り物用シートに関するものである。   The present invention relates to a vehicle seat such as an automobile.

従来の乗り物用シートとしては、例えば、フロアに対して起倒回動可能に支持する回転制御機構を備えたものがある。かかる回転制御機構は、シート側の部材及びフロア側の部材をヒンジ連結するヒンジ機構部と、該ヒンジ機構部によりヒンジ連結されたシートをフロアに対して起こし上げる回動方向に付勢する第１の付勢手段とを有している。前記シートの下側部には、フロア側の部材との間に介在することで着座可能なる位置に保持可能なる展開位置と、前記シートの下側部に畳み込まれる収納位置との間で起倒回動可能なレッグを有している。該レッグとシート側の部材との間には、前記展開位置にレッグを起立させる展開方向に付勢した第２の付勢手段が設けられている。前記レッグと前記フロア側の部材との間には、レッグを展開位置から収納位置に強制的に位置変動させる移動手段が設けられている（例えば、特許文献１参照。）。   As a conventional vehicle seat, for example, there is a vehicle seat provided with a rotation control mechanism that supports the floor so that it can be turned upside down. The rotation control mechanism includes a hinge mechanism portion that hinge-connects the seat-side member and the floor-side member, and a first biasing member that urges the seat hinged by the hinge mechanism portion in a rotational direction that raises the floor. Urging means. The lower part of the seat is raised between an unfolded position where it can be held in a position where it can be seated by being interposed with a member on the floor side, and a storage position where it is folded into the lower part of the seat. It has a leg that can be turned over. Between the leg and the member on the seat side, there is provided second urging means that urges the leg in the unfolding direction to erect the leg at the unfolded position. Moving means for forcibly changing the position of the leg from the deployed position to the storage position is provided between the leg and the floor-side member (see, for example, Patent Document 1).

特許公報第４６９７０２４号Japanese Patent No. 4697024

しかしながら、このような従来の技術にあっては、第１の付勢手段と第２の付勢手段との付勢方向が真逆であるので、双方の付勢手段の付勢力を大きくしなければ、目的の付勢力を得られないことになる。大きな付勢力を有する付勢手段にすれば、付勢手段のシート側への組付性が悪くなるばかりか、双方の付勢手段を支えられる剛性大のシートとするために、板厚を増さねばならず、シート自体が重くなる。板厚を増さずに剛性の高い材料を選択すれば、製造原価が高騰するおそれがある。   However, in such a conventional technique, since the urging directions of the first urging means and the second urging means are opposite to each other, the urging forces of both the urging means must be increased. If this is the case, you will not be able to obtain the desired energizing power. If an urging means having a large urging force is used, the assemblability of the urging means to the sheet side will be deteriorated, and the plate thickness will be increased in order to obtain a rigid sheet that can support both urging means. The sheet itself becomes heavy. If a material with high rigidity is selected without increasing the plate thickness, the manufacturing cost may increase.

本発明は、このような従来の技術に着目してなされたものであり、付勢手段の組付性を向上した乗り物用シートを提供するものである。   The present invention has been made paying attention to such a conventional technique, and provides a vehicle seat in which the assembly of the urging means is improved.

請求項１に記載の発明は、フロアの上側に配されてなる着座可能位置及び側壁に沿った収納位置にシートクッションを起倒回動可能に支持する回転制御機構と、前記シートクッション及び前記フロア側の間に介在して前記シートクッションを着座可能位置に保持する展開位置及び前記シートクッションの下側部に畳み込まれてなる収納位置の間で起倒回動可能なレッグと、前記回転制御機構に一端部が結合され且つ前記レッグに他端部が結合されて前記レッグを収納位置に牽引可能なるケーブルと、前記レッグを前記収納位置から前記展開位置の方向に常時付勢してなる単品の付勢手段と、前記シートクッションと前記フロアとの間に回転自在に軸支されて前記シートクッションを展開位置から収納位置に回動する際に助力を与えるガススプリングとを備えてなり、前記回転制御機構は、前記フロア側に回転中心を有し且つ前記シートクッション側に回転自在に軸支されてなることで並設されてなるリンクを有してなることを特徴とする。 According to the first aspect of the present invention, there is provided a rotation control mechanism for supporting a seat cushion so that the seat cushion can be turned upside down at a seatable position and a storage position along the side wall disposed on the upper side of the floor, the seat cushion, and the floor A leg that can be pivoted up and down between an unfolded position that holds the seat cushion in a seatable position and a retracted position that is folded into the lower side of the seat cushion, and the rotation control A cable having one end coupled to the mechanism and the other end coupled to the leg so that the leg can be pulled to the stowed position, and a single component that constantly urges the leg from the stowed position toward the deployed position Gasusupu give the biasing means, assistance when rotated to the stowed position from the deployed position the seat cushion is rotatably supported between the seat cushion and the floor It and a ring, the rotation control mechanism, to become a link formed by juxtaposed by becoming is rotatably supported on and the seat cushion side has a center of rotation to the floor side It is characterized by.

請求項１記載の発明によれば、フロアの上側に配されてなる着座可能位置及び側壁に沿った収納位置にシートクッションを起倒回動可能に支持する回転制御機構と、前記シートクッション及び前記フロア側の間に介在して前記シートクッションを着座可能位置に保持する展開位置及び前記シートクッションの下側部に畳み込まれてなる収納位置の間で起倒回動可能なレッグと、前記回転制御機構に一端部が結合され且つ前記レッグに他端部が結合されて前記レッグを収納位置に牽引可能なるケーブルと、前記レッグを前記収納位置から前記展開位置の方向に常時付勢してなる単品の付勢手段と、前記シートクッションと前記フロアとの間に回転自在に軸支されて前記シートクッションを展開位置から収納位置に回動する際に助力を与えるガススプリングとを備えてなり、前記回転制御機構は、前記フロア側に回転中心を有し且つ前記シートクッション側に回転自在に軸支されてなることで並設されてなるリンクを有してなり、前記単品の付勢手段の付勢方向が従来例のように複数の付勢手段の付勢方向が真逆ではなく一方向であるので、付勢手段の付勢力を大きくする必要が無く、その分、付勢手段の組付性が良くなるばかりか、シートの剛性を大きくしなくて良いので、板厚を増す必要が無い。つまり、シート自体が軽くなる。製造原価高騰のおそれが無い。 According to the first aspect of the present invention, the rotation control mechanism for supporting the seat cushion so that the seat cushion can be turned upside down at the seatable position and the storage position along the side wall disposed on the upper side of the floor, the seat cushion, A leg that is interposed between the floor side and holds the seat cushion in a seatable position; and a leg that can be rotated up and down between a retracted position that is folded into a lower portion of the seat cushion, and the rotation A cable having one end coupled to the control mechanism and the other end coupled to the leg so that the leg can be pulled to the stowed position; and the leg is constantly biased from the stowed position toward the deployed position. gas providing biasing means for separately, assistance when rotated to the stowed position from the rotatably supported has been deployed position the seat cushion between the seat cushion and the floor It and a pulling, the rotation control mechanism, Ri Na has a link formed by juxtaposed by becoming is rotatably supported on and the seat cushion side has a center of rotation to the floor side The urging direction of the single urging means is unidirectional rather than the urging direction of the urging means as in the conventional example, so there is no need to increase the urging force of the urging means , As a result, not only the assembly of the urging means is improved, but the rigidity of the sheet does not have to be increased, so there is no need to increase the plate thickness. That is, the sheet itself is lightened. There is no risk of rising manufacturing costs.

本発明の一実施例に係る乗り物用シートの骨格の着座可能位置を示す斜視説明図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory perspective view showing a seatable position of a skeleton of a vehicle seat according to an embodiment of the present invention. 図１の矢視ＡＡに係る乗り物用シートを示す側面図。The side view which shows the vehicle seat which concerns on arrow AA of FIG. 図１の矢視ＡＢに係る乗り物用シートを示す正面図。The front view which shows the vehicle seat which concerns on arrow AB of FIG. 図１の矢視ＡＣに係る乗り物用シートを示す側面図。The side view which shows the vehicle seat which concerns on arrow view AC of FIG. 図３のＡＤ部の拡大図。The enlarged view of AD part of FIG. 図３の着座可能位置にある乗り物用シートを収納位置に移動する途中状態を示す正面図。The front view which shows the state in the middle of moving the vehicle seat in the seatable position of FIG. 3 to a storage position. 図３の着座可能位置にある乗り物用シートを収納位置に移動した状態を示す正面図。The front view which shows the state which moved the vehicle seat in the seatable position of FIG. 3 to the accommodation position. 図６の回転制御機構を示す拡大図。The enlarged view which shows the rotation control mechanism of FIG. 図７の回転制御機構を示す拡大図。The enlarged view which shows the rotation control mechanism of FIG.

付勢手段の組付性を向上した乗り物用シートを提供する、という目的を、フロアの上側に配されてなる着座可能位置及び側壁に沿った収納位置にシートクッションを起倒回動可能に支持する回転制御機構と、前記シートクッション及び前記フロア側の間に介在して前記シートクッションを着座可能位置に保持する展開位置及び前記シートクッションの下側部に畳み込まれてなる収納位置の間で起倒回動可能なレッグと、前記回転制御機構に一端部が結合され且つ前記レッグに他端部が結合されて前記レッグを収納位置に牽引可能なるケーブルと、前記レッグを前記収納位置から前記展開位置の方向に常時付勢してなる単品の付勢手段と、前記シートクッションと前記フロアとの間に回転自在に軸支されて前記シートクッションを展開位置から収納位置に回動する際に助力を与えるガススプリングとを備えてなり、前記回転制御機構は、前記フロア側に回転中心を有し且つ前記シートクッション側に回転自在に軸支されてなることで並設されてなるリンクを有してなることで、実現した。 The purpose of providing a vehicle seat with improved urging means assembly is supported so that the seat cushion can be turned upside down at a seatable position arranged on the upper side of the floor and a storage position along the side wall. A rotation control mechanism that is interposed between the seat cushion and the floor side, a deployment position that holds the seat cushion in a seatable position, and a storage position that is folded on the lower side of the seat cushion. A leg that can be pivoted up and down, a cable having one end coupled to the rotation control mechanism and the other end coupled to the leg so that the leg can be pulled to a storage position, and the leg from the storage position to the storage position biasing means for separately formed by always biased in the direction of the deployed position, the deployed position the seat cushion is rotatably supported between the seat cushion and the floor It and a gas spring to provide assistance when rotates accommodated position, the rotation control mechanism, by formed by rotatably supported on and the seat cushion side has a center of rotation to the floor side This was realized by having links that were juxtaposed.

以下、本発明の最良の実施例を図１〜図９に基づいて説明する。図１は、「乗り物」としてのワンボックスタイプの自動車に搭載されてなるシート１が着座可能状態であることを示す。つまり、該シート１は、ワンボックスタイプの自動車の中央（センターラインＣＬ）で左右対称に配された内の左側ＬＨに配される。右側ＲＨに配されるシートは、前記シート１の左右対称なので、図示することを割愛する。また、該シート１の前側ＦＲには、フロア１５に固定される運転席、助手席などのシートが配設されてなるが、図示することを割愛する。この明細書では、代表して、ワンボックスタイプの自動車の中央（センターラインＣＬ）の左側ＬＨのシート１についてのみ説明する。   The best embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows that a seat 1 mounted on a one-box type automobile as a “vehicle” can be seated. That is, the seat 1 is arranged on the left side LH of the one-box type automobile that is arranged symmetrically in the center (center line CL). Since the sheet disposed on the right side RH is symmetrical with respect to the sheet 1, the illustration is omitted. Further, the front FR of the seat 1 is provided with seats such as a driver seat and a passenger seat fixed to the floor 15, but illustration thereof is omitted. In this specification, as a representative, only the left-side LH seat 1 at the center (center line CL) of a one-box type automobile will be described.

前記シート１は、シートバック２と、シートクッション３とよりなり、該シートバック２及びシートクッション３は、その骨格のみを示し、該骨格に、パッドを介して布などの表皮で覆われているが、何れも周知のため、説明を割愛する。   The seat 1 includes a seat back 2 and a seat cushion 3. The seat back 2 and the seat cushion 3 show only the skeleton, and the skeleton is covered with a skin such as a cloth through a pad. However, since all are well-known, explanation is omitted.

前記シートバック２は、鉄パイプにより正面視で四角い閉ループ状に形成されてなるバックフレーム４と、該バックフレーム４の右側ＲＨの側部に固定され且つ後述するクッションブラケット１１に連結手段１２を介して回転自在に支持されてなるバックブラケット５とよりなる。バックフレーム４の左側ＬＨ及び右側ＲＨの間には、適宜のしなりを有するワイヤ６、６が適宜の上下間隔を開けて固定される。バックフレーム４の上端部（上側ＵＰＲ）には、図示しないヘッドレストのスティが上下方向（上側ＵＰＲ及び下側ＬＷＲ）に摺動自在に支持されるためのヘッドレストホルダー７、７が支持されてなる。   The seat back 2 is fixed to a side portion of the right side RH of the back frame 4 formed by a steel pipe in a square closed loop shape when viewed from the front, and connected to a cushion bracket 11 described later via a connecting means 12. The back bracket 5 is rotatably supported. Between the left side LH and the right side RH of the back frame 4, wires 6 and 6 having an appropriate bend are fixed with an appropriate vertical interval. Headrest holders 7 and 7 are supported at the upper end portion (upper UPR) of the back frame 4 so that a headrest (not shown) is slidably supported in the vertical direction (upper UPR and lower LWR).

図１、図３、図４に示す符号９は、前記バックフレーム４の左側ＬＨに固定されてなる第２接続ブラケットで、鉄板よりなる。図１、図３、図４に示す符号８は、前記第２接続ブラケット９の側部に固定されてなる第１接続ブラケットで、鉄板よりなる。該第１接続ブラケット８の下端部は、リクライニング装置１４に連結されて、前記シートバック２の傾きの調節が自在なるように構成されてなる。尚、前記リクライニング装置１４は、図６及び図７に示すように、前記シートクッション３に沿う前倒れ位置まで前倒しが可能なるように構成されてなるが、周知技術のため、説明を割愛する。   1, 3, and 4 is a second connection bracket that is fixed to the left side LH of the back frame 4 and is made of an iron plate. 1, 3, and 4 is a first connection bracket that is fixed to the side portion of the second connection bracket 9, and is made of an iron plate. The lower end portion of the first connection bracket 8 is connected to the reclining device 14 so that the inclination of the seat back 2 can be adjusted. As shown in FIGS. 6 and 7, the reclining device 14 is configured to be able to be tilted forward to a forward tilt position along the seat cushion 3. However, the description is omitted because it is a well-known technique.

前記シートクッション３は、図１に示すように、鉄パイプにより上面視で四角い閉ループ状に形成されてなるクッションフレーム１０と、該クッションフレーム１０の右側ＲＨの側部に固定されて、前記バックブラケット５と連結手段１２により回転自在に支持されてなるクッションブラケット１１とよりなる。クッションフレーム１０の前後間には、適宜のしなりを有するＳ字スプリング２０、２０が適宜の左右間隔を開けて懸架されてなる。クッションフレーム１０の左側ＬＨには、前記リクライニング装置１４が固設されてなると共に回転制御機構１３が支持されてなる。   As shown in FIG. 1, the seat cushion 3 is fixed to a cushion frame 10 formed by an iron pipe in a square closed loop shape when viewed from above, and to the right RH side of the cushion frame 10, and the back bracket 5 and a cushion bracket 11 rotatably supported by the connecting means 12. Between the front and rear of the cushion frame 10, S-shaped springs 20 and 20 having an appropriate bend are suspended with an appropriate left-right interval. The reclining device 14 is fixed on the left side LH of the cushion frame 10 and the rotation control mechanism 13 is supported.

前記回転制御機構１３は、図１乃至図５に示すように、フロア１５の上側ＵＰＲに配されてなる着座可能位置、即ち、シートクッション３が略水平に保持される位置及び図７に示すように、側壁１５ｂに沿った収納位置、即ち、シートクッション３が略垂直に保持される位置との間を、シートクッション３を起倒回動可能に支持するものである。該回転制御機構１３は、前記フロア１５側、即ち前記フロア１５の外側（センターラインＣＬ側の逆側）に小山状に盛り上がった自動車に装着された図示しないタイアが収納されてなるタイヤハウスインナパネル１５ａの上に固定されたベースプレート２３と、該ベースプレート２３にそれぞれ回転自在に軸支されてなる下端ピン２４ａ、２５ａと、前記シートクッション３のクッションフレーム１０に固定された固定用ブラケット２６、即ちシート１側にそれぞれ回転自在に軸支されてなる上端ピン２４ｂ、２５ｂと、前記下端ピン２４ａ及び上端ピン２４ｂに上下端部を支持されてなる「リンク」である第１リンク２４と、前記下端ピン２５ａ及び上端ピン２５ｂに上下端部を支持されてなる「リンク」である第２リンク２５とを有してなる。側壁１５ｂは、室内から見て、フロア１５から小山状に盛り上がったタイヤハウスインナパネル１５ａの上側ＵＰＲに形成されてなるデッドスペースとなる壁である。   As shown in FIGS. 1 to 5, the rotation control mechanism 13 is located at the seatable position, that is, the position where the seat cushion 3 is held substantially horizontally, as shown in FIG. In addition, the seat cushion 3 is supported so as to be pivotable up and down between a storage position along the side wall 15b, that is, a position where the seat cushion 3 is held substantially vertically. The rotation control mechanism 13 is a tire house inner panel in which a tire (not shown) mounted on a car that swells in a small mountain shape on the floor 15 side, that is, the outside of the floor 15 (the opposite side of the center line CL side) is stored. A base plate 23 fixed on the base plate 15a, lower end pins 24a and 25a rotatably supported on the base plate 23, and a fixing bracket 26 fixed to the cushion frame 10 of the seat cushion 3, that is, a seat Upper end pins 24b and 25b rotatably supported on one side, a first link 24 which is a "link" having upper and lower ends supported by the lower end pin 24a and the upper end pin 24b, and the lower end pin A second link 25 that is a “link” having upper and lower ends supported by 25a and an upper end pin 25b. That. The side wall 15b is a wall that becomes a dead space formed on the upper UPR of the tire house inner panel 15a that swells in a small mountain shape from the floor 15 when viewed from the inside.

符号１８は、図３に示すように、前記シートクッション３及び前記フロア１５側の間に介在して前記シートクッション３を着座可能位置に保持する展開位置及び図７に示すように、前記シートクッション３の下側ＬＷＲ部、即ちクッションフレーム１０に沿って畳み込まれてなる収納位置の間で起倒回動可能なレッグである。該レッグ１８は、前記クッションフレーム１０より垂下されてなるレッグブラケット２８にレッグピン１８ａにより、上端部が回転自在に軸支されてなる。符号１８ｂは、レッグ１８がクッションフレーム１０に沿って畳み込まれてなる収納位置で、それ以上のレッグ１８の回転を阻止するように、レッグブラケット２８に干渉するレッグストッパピンである。 Reference numeral 18 denotes an unfolded position that is interposed between the seat cushion 3 and the floor 15 as shown in FIG. 3 and holds the seat cushion 3 in a seatable position, and as shown in FIG. 3 is a leg that can be rotated up and down between the lower LWR portions, that is, the storage positions that are folded along the cushion frame 10. The upper end of the leg 18 is rotatably supported by a leg pin 18 a on a leg bracket 28 that is suspended from the cushion frame 10. Reference numeral 18b denotes a leg stopper pin that interferes with the leg bracket 28 so as to prevent further rotation of the leg 18 at a storage position where the leg 18 is folded along the cushion frame 10.

前記レッグ１８の上端部の前記レッグピン１８ａには、レッグ１８が展開位置の方向に常時付勢した単品の「付勢手段」である復帰用スプリング２２が巻装されてなる。前記レッグ１８の下端部には、前記フロア１５に支持されてなるストライカ１６に係脱自在なラッチ１７が配されている。即ち、ラッチ１７は、図１及び図２に示すように、前記レッグ１８の前側ＦＲと後側ＲＲに１個づつ設けられていて、ストライカ１６に係合すると、図示しない解除装置を操作しない限り、ストライカ１６から解除しないで、保持される。図示しない解除装置を操作すると、ラッチ１７のロックが解除され、ストライカ１６から離脱する。 The leg pin 18a at the upper end of the leg 18 is wound with a return spring 22 which is a single “urging means” in which the leg 18 is constantly urged in the direction of the deployed position. At the lower end portion of the leg 18, a latch 17 that is detachable from a striker 16 supported by the floor 15 is disposed. That is, as shown in FIGS. 1 and 2, one latch 17 is provided on each of the front side FR and the rear side RR of the leg 18, and when engaged with the striker 16, unless a release device (not shown) is operated. , Without being released from the striker 16. When a release device (not shown) is operated, the latch 17 is unlocked and detached from the striker 16.

図１、図６〜図９に示す符号１９は、下端部が前記ベースプレート２３に固定用ピン１９ａにより回転自在に軸支されてなり、上端部が前記クッションフレーム１０に図示しないピンにより回転自在に軸支されてなるガススプリングであり、図３に示す着座可能位置、即ち、シートクッション３が略水平に保持される位置から図７に示す側壁１５ｂに沿った収納位置、即ち、シートクッション３が略垂直に保持される位置に回動する際に、持ち上げ力を助ける（助力という。）働きをする。 1 and 6 to 9, a lower end portion is pivotally supported on the base plate 23 by a fixing pin 19 a, and an upper end portion is rotatable on the cushion frame 10 by a pin (not shown). The gas spring is pivotally supported, and the seating position shown in FIG. 3 , that is, the storage position along the side wall 15 b shown in FIG. 7 from the position where the seat cushion 3 is held substantially horizontally, that is, the seat cushion 3 is When rotating to a position where it is held substantially vertically, it works to assist lifting force (referred to as assistance).

符号２１は、前記回転制御機構１３の第１リンク２４に一端部が結合され且つ前記レッグ１８に他端部が結合されて、前記復帰用スプリング２２の回転付勢力に抗して前記レッグ１８を収納位置に牽引可能なるケーブルである。該ケーブル２１は、図５に示すように、滑車２７、２７により方向を異なるように案内されている。   Reference numeral 21 denotes one end coupled to the first link 24 of the rotation control mechanism 13 and the other end coupled to the leg 18, so that the leg 18 is resisted against the rotational biasing force of the return spring 22. It is a cable that can be pulled to the storage position. As shown in FIG. 5, the cable 21 is guided in different directions by pulleys 27 and 27.

次に、本実施例の作用を説明する。   Next, the operation of this embodiment will be described.

フロア１５の上側ＵＰＲに配されてなる着座可能位置及び側壁１５ｂに沿った収納位置にシートクッション３を起倒回動可能に支持する回転制御機構１３と、前記シートクッション３及び前記フロア１５側の間に介在して前記シートクッション３を着座可能位置に保持する展開位置及び前記シートクッション３の下側ＬＷＲ部に畳み込まれてなる収納位置の間で起倒回動可能なレッグ１８と、前記回転制御機構１３に一端部が結合され且つ前記レッグ１８に他端部が結合されて前記レッグ１８を収納位置に牽引可能なるケーブル２１と、前記レッグ１８を前記収納位置から前記展開位置の方向に常時付勢してなる単品の復帰用スプリング２２とを備えてなり、前記回転制御機構１３は、前記フロア１５側に回転中心を有し且つ前記シートクッション３側に回転自在に軸支されてなることで並設されてなるリンク２４、２５を有してなるため、付勢方向が従来例のように真逆な二つの付勢手段を必要とせず、一方向であるので、復帰用スプリング２２の付勢力を大きくする必要が無く、その分、復帰用スプリング２２の組付性が良くなるばかりか、シートクッション３の剛性を大きくしなくて良いので、クッションフレーム１０の板厚を増す必要が無い。つまり、シート１自体が軽くなる。製造原価高騰のおそれが無い。 A rotation control mechanism 13 that supports the seat cushion 3 so that the seat cushion 3 can be turned upside down at a seatable position disposed on the upper UPR of the floor 15 and a storage position along the side wall 15b, and the seat cushion 3 and the floor 15 side A leg 18 that can be pivoted up and down between a deployed position that holds the seat cushion 3 in a seatable position interposed therebetween and a storage position that is folded into the lower LWR portion of the seat cushion 3; A cable 21 having one end coupled to the rotation control mechanism 13 and the other end coupled to the leg 18 so that the leg 18 can be pulled to the retracted position, and the leg 18 from the retracted position toward the deployed position. it and a return spring 22 of the made constantly urging separately, the rotation control mechanism 13, and the Shitoku' has a rotation center on the floor 15 side To become a link 24, 25 formed by juxtaposed by formed by rotatably supported by tio down 3 side, the urging direction requires exact opposite of the two biasing means as in the prior art However, since the urging force of the return spring 22 does not need to be increased, the assembly of the return spring 22 is improved, and the rigidity of the seat cushion 3 is not increased. Since it is good, there is no need to increase the thickness of the cushion frame 10. That is, the sheet 1 itself becomes light. There is no risk of rising manufacturing costs.

以上の実施例では、乗り物用シートとして自動車用のシート１を例にして説明したが、これに限定されず、航空機、鉄道車両、船舶などに搭載されているシートでも良い。   In the above embodiment, the vehicle seat 1 has been described as an example of the vehicle seat, but the seat is not limited to this and may be a seat mounted on an aircraft, a rail vehicle, a ship, or the like.

１ 「乗り物」としての自動車のシート
３ シートクッション
１０ クッションフレーム
１３ 回転制御機構
１５ フロア
１５ｂ 側壁
１８ レッグ
２１ ケーブル
２２ 復帰用スプリング（付勢手段）
２４ 第１リンク（リンク）
２５ 第２リンク（リンク） DESCRIPTION OF SYMBOLS 1 Car seat as "vehicle" 3 Seat cushion 10 Cushion frame 13 Rotation control mechanism 15 Floor 15b Side wall 18 Leg 21 Cable 22 Return spring (biasing means)
24 First link
25 Second link (link)

Claims (1)

フロアの上側に配されてなる着座可能位置及び側壁に沿った収納位置にシートクッションを起倒回動可能に支持する回転制御機構と、前記シートクッション及び前記フロア側の間に介在して前記シートクッションを着座可能位置に保持する展開位置及び前記シートクッションの下側部に畳み込まれてなる収納位置の間で起倒回動可能なレッグと、前記回転制御機構に一端部が結合され且つ前記レッグに他端部が結合されて前記レッグを収納位置に牽引可能なるケーブルと、前記レッグを前記収納位置から前記展開位置の方向に常時付勢してなる単品の付勢手段と、前記シートクッションと前記フロアとの間に回転自在に軸支されて前記シートクッションを展開位置から収納位置に回動する際に助力を与えるガススプリングとを備えてなり、
前記回転制御機構は、前記フロア側に回転中心を有し且つ前記シートクッション側に回転自在に軸支されてなることで並設されてなるリンクを有してなることを特徴とする乗り物用シート。 A rotation control mechanism for supporting the seat cushion so that it can be turned upside down at a seatable position and a storage position along the side wall, which are arranged on the upper side of the floor; and the seat interposed between the seat cushion and the floor side A leg that can be rotated up and down between a deployed position that holds the cushion in a seatable position and a storage position that is folded on the lower side of the seat cushion, and one end portion coupled to the rotation control mechanism; A cable having the other end coupled to the leg and capable of pulling the leg to the storage position; a single biasing means for constantly biasing the leg from the storage position toward the unfolded position; and the seat cushion And a gas spring that is pivotally supported between the floor and the floor to provide assistance when rotating the seat cushion from the deployed position to the stowed position ,
The rotation control mechanism includes a link having a rotation center on the floor side and a link arranged in parallel by being rotatably supported on the seat cushion side. .
JP2012235502A 2012-10-25 2012-10-25 Vehicle seat Expired - Fee Related JP6046445B2 (en)

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