JP3685743B2

JP3685743B2 - Vehicle seat structure

Info

Publication number: JP3685743B2
Application number: JP2001224475A
Authority: JP
Inventors: 拓也長瀬
Original assignee: Daihatsu Motor Co Ltd
Current assignee: Daihatsu Motor Co Ltd
Priority date: 2001-07-25
Filing date: 2001-07-25
Publication date: 2005-08-24
Anticipated expiration: 2021-07-25
Also published as: JP2003034166A

Description

【０００１】
【発明の属する技術分野】
本発明は、乗用車や２列及び３列シートのミニバン、トラック等の商用車、観光バス等の車両、建設機械等の産業用の車両において、前側や後側のシートの構造に関する。
【０００２】
【従来の技術】
車両の一例である乗用車では、例えば特開昭５９−２０６２４０号公報に開示されているように、横軸芯（前記公報の第２図及び第３図中の９）周りに開閉自在な物入れ部（前記公報の第２図及び第３図中の５）を、シートの前端下部に備えたものがある。
【０００３】
【発明が解決しようとする課題】
従来の技術に記載の構造ではシートの前端下部の上下幅が比較的小さいので、物入れ部が比較的小さなものになっている。これにより、比較的大きな物入れ部を得る為に、シートの座部を下側から支持するシート支持部に、物入れ用の凹部を上方に開放して形成することが考えられている。
本発明は車両のシート構造において、シートの座部を下側から支持するシート支持部に、物入れ用の凹部を上方に開放して形成した場合、凹部から物を容易に出し入れすることができるように構成することを目的としている。
【０００４】
【課題を解決するための手段】
［Ｉ］
請求項１の特徴によると、シート支持部の前部に物入れ用の凹部を上方に開放して形成した場合、シート支持部の凹部の前部にリンク部材の一端部を第１横軸芯周りに揺動自在に接続し、シートの座部における前後方向中間の裏側部分にリンク部材の他端部を第２横軸芯周りに揺動自在に接続している。
【０００５】
これにより、請求項１の特徴によると、シートの座部をシート支持部に乗せたシートの座部の使用姿勢において、シート支持部の凹部がシートの座部によって塞がれる状態となるので、シート支持部の凹部に入れた物が外に出るようなことがない。
請求項１の特徴によれば、前述のシートの座部の使用姿勢から第１横軸芯周りにリンク部材を上方に揺動させ、シートの座部の後部を持ち上げて、シートの座部の全体をシート支持部から離すことができるのであり、シートの座部の前部を下にしてシート支持部の前部で起立する第１姿勢に、シートの座部を設定することができる（フォールディング状態）。この後、シートの背もたれ部をシート支持部に沿うように支障なく前方に倒すことができる（ダブルフォールディング状態）。
【０００６】
［ＩＩ］
請求項１の特徴によれば、前項［Ｉ］に記載のシートの座部の使用姿勢から第１横軸芯周りにリンク部材を上方に揺動させて、シートの座部に対して第２横軸芯周りにリンク部材を揺動させ、シートの座部の後部を前方に少し移動させながら、シートの座部の前部を上方に持ち上げることができるのであり、シート支持部の凹部を開放する第２姿勢にシートの座部を設定することができる。
【０００７】
請求項１の特徴によると、シート支持部の前部に物入れ用の凹部を上方に開放して形成した場合、シートの座部の前部を上方に持ち上げてシート支持部の凹部を開放する第２姿勢に、シートの座部を設定できるように構成することにより、シート支持部の凹部の上方を大きく開放できるのであり、シート支持部の前側からシート支持部の凹部に手を入れることが容易に行える。
【０００８】
［ＩＩＩ］
請求項２の特徴によると、請求項１の場合と同様に前項［Ｉ］［ＩＩ］に記載の「作用」を備えており、これに加えて以下のような「作用」を備えている。
請求項２の特徴によると、シートの座部をシート支持部に乗せたシートの座部の使用姿勢で、第２横軸芯がシート支持部の凹部における後壁部の後側で、且つ第１横軸芯よりも下側に位置するように、リンク部材を構成している。
これにより、請求項２の特徴によると、シートの座部の使用姿勢において、第２横軸芯（リンク部材の他端部）がシート支持部の凹部に入り込まないので、シートの座部の使用姿勢において第２横軸芯（リンク部材の他端部）によりシート支持部の凹部の容積が狭められると言うような状態は生じない。
【０００９】
請求項２の特徴によると、シートの座部の使用姿勢において、例えば前面からの衝突等により、前方への慣性力がシートの座部に作用した場合に、第２横軸芯（リンク部材の他端部）が第１横軸芯（リンク部材の一端部）よりも下側に位置していることにより、前方への慣性力がシートの座部から第２横軸芯（リンク部材の他端部）に作用して、リンク部材が第１横軸芯周りに下方に揺動しようとする状態となる。これにより、例えば前面からの衝突等により、前方への慣性力がシートの座部に作用しても、シートの座部が浮き上がろうとする状態がリンク部材によって抑えられる。
【００１０】
［ＩＶ］
請求項３の特徴によると、請求項１又は２の場合と同様に前項［Ｉ］〜［ＩＩＩ］に記載の「作用」を備えており、これに加えて以下のような「作用」を備えている。
シート支持部の前部に物入れ用の凹部を上方に開放して形成した場合、シート支持部の凹部に前壁部や後壁部が形成されることになるので、請求項３の特徴によると、シート支持部の凹部における後壁部を、シートの座部における乗員の臀部接地位置よりも前側に位置させている。
【００１１】
これにより、請求項３の特徴によると、前項［ＩＩＩ］に記載のように、例えば前面からの衝突等により、前方に移動への慣性力がシートに着座する乗員に作用して、乗員が前方に移動しようとしても（乗員の臀部がシートの座部に沿って前方に移動しようとしても）、乗員の臀部の前方への移動がシート支持部の凹部の後壁部によって止められるような状態となる。
【００１２】
［Ｖ］
請求項４の特徴によると、請求項１〜３のうちのいずれか一つの場合と同様に前項［Ｉ］〜［ＩＶ］に記載の「作用」を備えており、これに加えて以下のような「作用」を備えている。
前項［ＩＩ］に記載のように、シートの座部の使用姿勢から第１横軸芯周りにリンク部材を上方に揺動させ、シートの座部に対して第２横軸芯周りにリンク部材を揺動させて、第２姿勢にシートの座部を設定する際、シートの座部の前部が上方に持ち上がることによって、シートの座部の後部における第２横軸芯の後側の裏側部分は、円弧状の軌跡を描くことになる。
【００１３】
請求項４の特徴によると、円弧状の案内部をシートの座部における第２横軸芯の後側の裏側部分、又はシート支持部の凹部における後壁部の後側部分に備えている。これにより、請求項４の特徴によると、シートの座部を第２姿勢に変更する際に、シートの座部における第２横軸芯の後側の裏側部分が、円弧状の案内部に沿って案内されるのであり、シートの座部の第２姿勢への変更を円滑に行うことができる。
【００１４】
［ＶＩ］
請求項５の特徴によると、請求項１〜４のうちのいずれか一つの場合と同様に前項［Ｉ］〜［Ｖ］に記載の「作用」を備えており、これに加えて以下のような「作用」を備えている。
前項［ＩＩ］に記載のように、シートの座部の使用姿勢から第１横軸芯周りにリンク部材を上方に揺動させ、シートの座部に対して第２横軸芯周りにリンク部材を揺動させて、第２姿勢にシートの座部を設定する際、シートの座部の後部がシート支持部の後部に乗った状態で、シートの座部の前部が上方に持ち上がるような状態となる。
【００１５】
請求項５の特徴によると、シートの座部の第２姿勢への変更の際に、シートの座部の左右方向の移動を阻止する阻止部を、シート支持部の凹部における後壁部の後側部分に備えているので、シートの座部を第２姿勢に変更する際に、シートの座部の左右方向の移動が阻止されながら、シートの座部の第２姿勢への変更をガタ付き少なく安定して行うことができる。
【００１６】
【発明の実施の形態】
図１及び図４は４ドア（又は５ドア）の乗用車において、リヤシートの付近を示しており、リヤシートの後側に荷物室（図示せず）が形成されている。リヤシートに着座した乗員が足を置く下フロア１の後部が、上方に立ち上げられ後方に延出されて、上フロア２が形成されている。下フロア１にカーペット３が敷かれて、カーペット３の後部が上フロア２の前部付近にまで延出されており、シート支持部４が上フロア２に固定されて、上フロア２とシート支持部４との間にカーペット３の後部が入り込んでいる。
【００１７】
図４及び図５に示すように、シート支持部４は合成樹脂により一体的に形成されており、前壁部４ａ及び後壁部４ｂ、横壁部４ｃ及び中壁部４ｄにより、シート支持部４の前部に、底を備えて上方に開放された２つの凹部４ｅが形成されている。円弧状の２つの面状の案内部４ｆが、シート支持部４の後壁部４ｂにつながるようにシート支持部４の後部に形成されており、２つの案内部４ｆの各々の中央部に溝状の阻止部４ｇが案内部４ｆに沿って形成され、阻止部４ｇの後部に爪状の係合部４ｈが形成されている。２つの案内部４ｆの間に、開口４ｉが形成されている。
【００１８】
図４及び図８（イ）に示すように、支持パイプ５がブラケット５ａを介してボルト６により上フロア２の前部に固定されており、シート支持部４の前壁部４ａの下側に支持パイプ５が位置している。支持パイプ５に受け部５ｂが備えられ、シート支持部４の前壁部４ａが、支持パイプ５の受け部５ｂに乗せられて連結されている。支持パイプ５にブラケット５ｃが固定され、合成樹脂製の連結部７が支持パイプ５のブラケット５ｃに取り付けられており、シート支持部４の前壁部４ａの開口４ｊから上方に連結部７が出ている。図４及び図５に示すように、シートベルト（図示せず）のバックル部８を備えた支持金具９が、上フロア２の後部中央に固定されており、シート支持部４の開口４ｉからバックル部８が上方に出ている。
【００１９】
図１及び図５に示すように、リヤシートにおいて分割式の２つの背もたれ部１０が、支持金具１１を介して上フロア２の後部にボルトで連結されている。支持パイプ１２がブラケット１２ａを介して、支持金具１１と一緒に上フロア２の後部にボルトで連結されており、チャイルドシート（図示せず）の連結用のＩＳＯＦＩＸ型式の連結部１２ｂが支持パイプ１２に固定されて、支持パイプ１２の連結部１２ｂが背もたれ部１０の直下に位置するように構成されている。
【００２０】
図１，５，６に示すように、金属製の線材を平面視（図６参照）でコ字状に折り曲げてリンク部材１５が構成されており、リンク部材１５に２つの支点部１５ａと、２つの支点部１５ａの間のストッパー部１５ｂとが備えられている。リンク部材１５の支点部１５ａからアーム部１５ｃが延出されており、側面視（図１参照）で、リンク部材１５のアーム部１５ｃがＬ字状に折り曲げられている。
【００２１】
図５及び図６に示すように、リヤシートにおいて分割式の２つの座部１３が用意され、金属製の線材を枠状に組み立てたフレーム１４が、座部１３の裏側部分に埋め込まれている。フレーム１４から延出されたアーム部１４ａ及びコ字状の係止部１４ｂが、座部１３の裏側部分から突出しており、フレーム１４のアーム部１４ａの第２横軸芯Ｐ２周りに、リンク部材１５のアーム部１５ｃが揺動自在に接続されている。帯状の布材でループ状に構成された把手部１６が、フレーム１４の前部中央に取り付けられており、把手部１６が座部１３から出ている。図１及び図２に示すように、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分が、下向きに出る円弧状の面状に形成されている。
【００２２】
図１に示す状態は、リンク部材１５の支点部１５ａを連結部７に取り付けた状態であり、座部１３をシート支持部４に乗せた座部１３の使用状態である。座部１３の使用状態において、座部１３の前部の裏側部分でシート支持部４の凹部４ｅが塞がれて、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分が、シート支持部４の案内部４ｆに乗っており、フレーム１４の係止部１４ｂにシート支持部４の係合部４ｈが入り込んでいる。フレーム１４の係止部１４ｂとシート支持部４の係合部４ｈとの係合作用によって、座部１３の使用状態での座部１３の左右方向のガタ付きが抑えられる。
【００２３】
図１に示すように、座部１３の使用状態において、リンク部材１５の支点部１５ａ及びストッパー部１５ｂが、シート支持部１５の前壁部４ａに近接し、リンク部材１５のアーム部１５ｃが、シート支持部１５の横壁部４ｃ及び中壁部４ｄに近接している。リンク部材１５のアーム部１５ｃがシート支持部４の後壁部４ｂを越えてシート支持部４の案内部４ｆに入り込んでいる。これにより、シート支持部４の凹部４ｅの容積が、リンク部材１５によって狭められると言う状態にはならない。
【００２４】
この場合、座部１３の使用状態において、側面視（図１参照）で、リンク部材１５の支点部１５ａの位置（連結部７の第１横軸芯Ｐ１）よりも、リンク部材１５のアーム部１５ｃの先端（第２横軸芯Ｐ２）の位置が、下側になるように構成されている。座部１３の使用状態において乗員がリヤシートに着座した場合、シート支持部４の後壁部４ｂが、側面視（図１参照）で、座部１３における乗員の臀部接地位置Ｄよりも前側に位置している。
【００２５】
次に座部１３の使用状態から座部１３の第１姿勢への変更について説明する。図１に示す座部１３の使用状態において、把手部１６を持って座部１３の前部を斜め前方上方（図１の紙面左上方）に少し引き出すと、座部１３の前部が持ち上げられながら、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分が、シート支持部４の案内部４ｆに沿って円弧状に少し移動して、フレーム１４の係止部１４ｂがシート支持部４の係合部４ｈから離れる。
【００２６】
この状態で、図３に示すようにリンク部材１５を連結部７の第１横軸芯Ｐ１周りに上方に揺動させ、座部１３の後部を持ち上げることにより、座部１３の全体をシート支持部４から離すことができるのであり、座部１３の前部を下にしてシート支持部４の前部で起立する第１姿勢に、座部１３を設定することができる。この場合、リンク部材１５のストッパー部１５ｂがシート支持部４の前壁部４ａに接当しており、リンク部材１５が座部１３の第１姿勢から前方（図３の紙面左方）に揺動しないようになっている。帯状の布をループ状にした保持部１３ａが座部１３の裏側部分に取り付けられているので、ヘッドレスト１７を背もたれ部１０から取り外し座部１３の保持部１３ａに保持させた後、背もたれ部１０を前方に倒す。
【００２７】
次に座部１３の使用状態から座部１３の第２姿勢への変更について説明する。図１に示す座部１３の使用状態において、前述と同様に把手部１６を持って座部１３の前部を斜め前方上方（図１の紙面左上方）に引き出し、フレーム１４の係止部１４ｂをシート支持部４の係合部４ｈから離す。図２に示すように、リンク部材１５を連結部７の第１横軸芯Ｐ１周りに上方に揺動させて、リンク部材１５を座部１３（フレーム１４）の第２横軸芯Ｐ２周りに揺動させ、座部１３の前部を上方に持ち上げて、シート支持部４の凹部４ｅを開放する第２姿勢に座部１３を設定する。
【００２８】
この場合に、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分が、シート支持部４の案内部４ｆに沿って円弧状に移動しながら、座部１３の前部が上方に持ち上げられることにより、座部１３の上方への持ち上げが円滑に行える。図７に示すように、座部１３の上方への持ち上げにより、フレーム１４の係止部１４ｂがシート支持部４の係合部４ｈから離れた後に、シート支持部１４の阻止部４ｇに入り込むことによって、座部１３の左右方向の移動が阻止されながら、座部１３の第２姿勢への変更をガタ付き少なく安定して行うことができる。
【００２９】
図５に示すように、座部１３を第１及び第２姿勢に設定した後、リンク部材１５の支点部１５ａを連結部７から取り外し、座部１３を車外に取り出すことができるように構成されており、次に連結部７の構造について説明する。図９に示すように、合成樹脂製で平面視コ字状の基部１８及び合成樹脂製のアーム部１９により、連結部７が構成されている。基部１８は爪状の係合部１８ａ及び止め部１８ｂ、上向きの凹部状の切欠部１８ｃ、位置決め用の開口１８ｄ，１８ｅを備えて構成されている。アーム部１９は握り部１９ａ、ボス部１９ｂ、ボス部１９ｂに形成された凹部１９ｃ及び凸部１９ｄを備えて構成されている。
【００３０】
前述のようにして構成された基部１８及びアーム部１９において、図９及び図８（イ）（ロ）に示すように、基部１８の切欠部１８ｃにアーム部１９のボス部１９ｂを嵌め込むことにより、連結部７の第１横軸芯Ｐ１（基部１８の切欠部１８ｃ）周りに、アーム部１９のボス部１９ｂが回転自在に支持される。基部１８を支持パイプ５のブラケット５ｃに差し込んで、基部１８の止め部１８ｂを接当させながら、基部１８の係合部１８ａを支持パイプ５のブラケット５ｃに係合させることにより、連結部７を支持パイプ５のブラケット５ｃに取り付ける。支持パイプ５のブラケット５ｃに上向きの凹部状の切欠部５ｅが形成されており、支持パイプ５の切欠部５ｅと基部１８の切欠部１８ｃとが一致する。
【００３１】
図８（イ）に示す状態は、アーム部１９の凸部１９ｄが基部１８の開口１８ｄに入り込んで、アーム部１９が開放姿勢に軽く位置決めされた状態であり、アーム部１９の凹部１９ｃが基部１８の切欠部１８ｃに一致している。これにより、アーム部１９の開放姿勢において、リンク部材１５の支点部１５ａをアーム部１９の凹部１９ｃに入れたり、リンク部材１５の支点部１５ａをアーム部１９の凹部１９ｃから出したりすることができる。
【００３２】
図８（ロ）に示す状態は、リンク部材１５の支点部１５ａをアーム部１９の凹部１９ｃに入れた状態で、アーム部１９の凸部１９ｄが基部１８の開口１８ｅに入り込み、アーム部１９が保持姿勢に軽く位置決めされた状態である。アーム部１９の保持姿勢において、リンク部材１５の支点部１５ａが連結部７の第１横軸芯Ｐ１周りに回転（揺動）する。リンク部材１５の支点部１５ａが上方に持ち上げられようとする力が作用しても、前述の力が掛かる位置（リンク部材１５の支点部１５ａ）が、連結部７の第１横軸芯Ｐ１（アーム部１９のボス部１９ｂ）に一致しているので、アーム部１９が図８（ロ）に示す保持姿勢から動くことはない。
【００３３】
これにより、座部１３の使用姿勢、第１及び第２姿勢において、図８（ロ）に示すように、リンク部材１５の支点部１５ａをアーム部１９の凹部１９ｃに入れた状態で、アーム部１９を保持姿勢に設定しておく。座部１３を第１及び第２姿勢に変更した後、アーム部１９の握り部１９ａを持って、図８（イ）に示すようにアーム部１９を開放姿勢に操作することにより、リンク部材１５の支点部１５ａを連結部７から取り外し、座部１３を車外に取り出すことができる。
【００３４】
［発明の実施の別形態］
図１，４，５に示すシート支持部４の案内部４ｆ、及び座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分において、一方を円弧状に構成し、他方を円弧状に構成せず、他方の複数箇所が一方に接当することによって、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分が、シート支持部４の案内部４ｆに沿って円弧状に移動するように構成してもよい。
【００３５】
図４，５，７に示すシート支持部４の阻止部４ｇを凸部状に構成し、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分に溝部を備えて、シート支持部４の凸部状の阻止部４ｇが、座部１３におけるフレーム１４のアーム部１４ａの後側の裏側部分の溝部に入り込むことにより、座部１３の左右方向の移動が阻止されるように構成してもよい。
【００３６】
リヤシートにおいて分割式の２つの座部１３ではなく、車内の略全横幅に亘る１つの座部１３を用意して、このような座部１３に本発明を適用してもよい。このように構成すると、１つのリンク部材１５を用意すればよいことになる。本発明はリヤシートばかりではなく、助手席等の１人用のフロントシートに適用してもよく、トラック等の商用車や観光バス、建設機械等の産業用の車両のシートに適用してもよい。
【００３７】
【発明の効果】
請求項１の特徴によると、車両のシート構造において、シートの座部を下側から支持するシート支持部に、物入れ用の凹部を上方に開放して形成した場合に、シートの座部の前部を上方に持ち上げてシート支持部の凹部を開放する第２姿勢に、シートの座部を設定できるように構成することにより、シート支持部の凹部の上方を大きく開放でき、シート支持部の前側からシート支持部の凹部に手を入れて物を容易に出し入れすることができるようになって、車両の機能性を高めることができた。
【００３８】
請求項１の特徴によると、シートの座部の前部を下にしてシート支持部の前部で起立する第１姿勢にシートの座部を設定することができ、シートの背もたれ部をシート支持部に沿うように支障なく前方に倒すことができるようになるので、ダブルフォールディングの機能が損なわれるものではない。
請求項１の特徴によると、シートの座部をシート支持部に乗せたシートの座部の使用姿勢において、シート支持部の凹部がシートの座部によって塞がれる状態となり、シート支持部の凹部に入れた物が外に出るようなことがないので、物入れとしての機能が損なわれるものではない。
【００３９】
請求項２の特徴によると、請求項１の場合と同様に前述の請求項１の「発明の効果」を備えており、この「発明の効果」に加えて以下のような「発明の効果」を備えている。
請求項２の特徴によると、シートの座部をシート支持部に乗せたシートの座部の使用姿勢において、第２横軸芯（リンク部材の他端部）によりシート支持部の凹部の容積が狭められると言うような状態は生じないので、物入れとしての機能が損なわれるものではない。
【００４０】
請求項２の特徴によると、シートの座部の使用姿勢において、例えば前面からの衝突等により、前方への慣性力がシートの座部に作用しても、リンク部材が第１横軸芯周りに下方に揺動しようとする状態となり、シートの座部が浮き上がろうとする状態がリンク部材によって抑えられるので、シートの座部の浮き上がりによる乗員への影響を抑えることができた。
【００４１】
請求項３の特徴によると、請求項１又は２の場合と同様に前述の請求項１又は２の「発明の効果」を備えており、この「発明の効果」に加えて以下のような「発明の効果」を備えている。
請求項３の特徴によると、例えば前面からの衝突等により、前方への慣性力がシートに着座する乗員に作用して、乗員が前方に移動しようとしても（乗員の臀部がシートの座部に沿って前方に移動しようとしても）、乗員の臀部の前方への移動がシート支持部の凹部の後壁部によって止められるような状態を得ることができて、乗員への影響を抑えることができた。
【００４２】
請求項４の特徴によると、請求項１〜３のうちのいずれか一つの場合と同様に前述の請求項１〜３の「発明の効果」を備えており、この「発明の効果」に加えて以下のような「発明の効果」を備えている。
請求項４の特徴によると、シートの座部を第２姿勢に変更する際に、シートの座部の後部における第２横軸芯の後側の裏側部分が、円弧状の案内部に沿って案内され、シートの座部の第２姿勢への変更を円滑に行うことができるようになって、操作性を良いものにすることができた。
【００４３】
請求項５の特徴によると、請求項１〜４のうちのいずれか一つの場合と同様に前述の請求項１〜４の「発明の効果」を備えており、この「発明の効果」に加えて以下のような「発明の効果」を備えている。
請求項５の特徴によると、シートの座部を第２姿勢に変更する際に、シートの座部の左右方向の移動が阻止されながら、シートの座部の第２姿勢への変更をガタ付き少なく安定して行うことができるようになって、操作性を良いものにすることができた。
【図面の簡単な説明】
【図１】シートの座部の使用姿勢でのシート及びシート支持部の付近の縦断側面図
【図２】シートの座部の第２姿勢でのシート及びシート支持部の付近の縦断側面図
【図３】シートの座部の第１姿勢でのシート及びシート支持部の付近の縦断側面図
【図４】下及び上フロア、シート支持部の付近の斜視図
【図５】上フロア、シート支持部、シートの背もたれ部及び座部の付近の斜視図
【図６】シートの座部におけるフレーム及びリンク部材の付近の斜視図
【図７】シート支持部の阻止部の付近の縦断正面図
【図８】開放姿勢及び保持姿勢での連結部の付近の縦断側面図
【図９】連結部の基部及びアーム部、支持パイプのブラケットを示す斜視図
【符号の説明】
４シート支持部
４ｂ後壁部
４ｅ凹部
４ｆ案内部
４ｇ阻止部
１０背もたれ部
１３座部
１５リンク部材
Ｐ１第１横軸芯
Ｐ２第２横軸芯
Ｄ臀部接地位置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a front and rear seat structure in a passenger car, a commercial vehicle such as a minivan having two and three rows of seats, a vehicle such as a truck, a vehicle such as a sightseeing bus, and an industrial vehicle such as a construction machine.
[0002]
[Prior art]
In a passenger car as an example of a vehicle, as disclosed in, for example, Japanese Patent Laid-Open No. 59-206240, a container portion that can be opened and closed around a horizontal axis (9 in FIGS. 2 and 3 of the publication). (5 in FIG. 2 and FIG. 3 of the above publication) is provided at the lower front end of the seat.
[0003]
[Problems to be solved by the invention]
In the structure described in the prior art, since the vertical width of the lower part of the front end of the sheet is relatively small, the container portion is relatively small. Thus, in order to obtain a relatively large container part, it has been considered to form a concave part for opening the container part on the sheet support part that supports the seat part of the sheet from below.
In the seat structure of a vehicle according to the present invention, when a recessed portion for opening a case is formed on a seat supporting portion that supports a seat portion of the seat from below, an object can be easily taken in and out from the recessed portion. The purpose is to configure.
[0004]
[Means for Solving the Problems]
[I]
According to the first aspect of the present invention, when the concave portion for storing the container is opened upward at the front portion of the sheet support portion, the one end portion of the link member is arranged around the first horizontal axis core at the front portion of the concave portion of the sheet support portion. The other end portion of the link member is swingably connected around the second horizontal axis to the back side portion in the front-rear direction middle of the seat portion of the seat.
[0005]
Thereby, according to the feature of claim 1, in the use posture of the seat portion of the seat in which the seat portion of the seat is placed on the seat support portion, the concave portion of the seat support portion is blocked by the seat portion of the seat, The thing put in the recessed part of a sheet | seat support part does not come out.
According to the feature of claim 1, the link member is swung upward around the first horizontal axis from the use posture of the seat portion of the seat, the rear portion of the seat portion is lifted, and the seat portion of the seat is The entire seat can be separated from the seat support portion, and the seat portion of the seat can be set in a first posture in which the front portion of the seat portion of the seat faces down and stands at the front portion of the seat support portion (folding). Status). Thereafter, the seat back portion can be tilted forward along the seat support portion without any trouble (double folding state).
[0006]
[II]
According to the feature of the first aspect, the link member is swung upwardly around the first horizontal axis from the use posture of the seat portion of the seat described in the preceding item [I], so that the second position with respect to the seat portion of the seat. The front part of the seat part of the seat can be lifted upward while swinging the link member around the horizontal axis and moving the rear part of the seat part slightly forward. The seat portion of the seat can be set to the second posture.
[0007]
According to the first aspect of the present invention, when the concave portion for storing the container is formed upward at the front portion of the seat support portion, the front portion of the seat portion of the seat is lifted upward to open the concave portion of the seat support portion. By configuring the seat in two positions so that the seat can be set, the upper part of the recess of the seat support can be greatly opened, and it is easy to put the hand into the recess of the seat support from the front side of the seat support. Can be done.
[0008]
[III]
According to the feature of claim 2, as in the case of claim 1, the “action” described in the previous item [I] [II] is provided, and in addition to this, the following “action” is provided.
According to the feature of claim 2, in the use posture of the seat portion of the seat with the seat portion of the seat mounted on the seat support portion, the second horizontal axis is on the rear side of the rear wall portion in the recess of the seat support portion, and The link member is configured to be positioned below the one horizontal axis.
Thus, according to the feature of claim 2, in the usage posture of the seat portion of the seat, the second horizontal axis core (the other end portion of the link member) does not enter the concave portion of the seat support portion. In the posture, a state in which the volume of the concave portion of the sheet support portion is narrowed by the second horizontal axis (the other end portion of the link member) does not occur.
[0009]
According to the second aspect of the present invention, in the use posture of the seat portion of the seat, when a forward inertial force acts on the seat portion of the seat due to, for example, a collision from the front surface, the second horizontal axis (the link member) Since the other end portion is positioned below the first horizontal axis (one end of the link member), the forward inertial force is transferred from the seat portion of the seat to the second horizontal axis (other than the link member). Acting on the end portion), the link member tends to swing downward around the first horizontal axis. As a result, even when a forward inertia force acts on the seat portion of the seat due to, for example, a collision from the front surface, the state in which the seat portion of the seat tries to rise is suppressed by the link member.
[0010]
[IV]
According to the feature of claim 3, as in the case of claim 1 or 2, the “action” described in the preceding paragraphs [I] to [III] is provided, and in addition to this, the following “action” is provided. ing.
According to the feature of claim 3, when the front part of the sheet support part is formed by opening a recess for storing the container upward, a front wall part and a rear wall part are formed in the concave part of the sheet support part. The rear wall portion in the concave portion of the seat support portion is positioned in front of the occupant's buttocks contact position in the seat portion of the seat.
[0011]
Thus, according to the feature of claim 3, as described in [III], the inertial force to move forward acts on the occupant seated on the seat due to, for example, a collision from the front, and the occupant moves forward. In the state where the forward movement of the occupant's buttocks is stopped by the rear wall of the recessed portion of the seat support portion. Become.
[0012]
[V]
According to the feature of claim 4, the “action” described in the preceding items [I] to [IV] is provided as in the case of any one of claims 1 to 3. It has a special “action”.
As described in the preceding item [II], the link member is swung upwardly around the first horizontal axis from the use posture of the seat portion of the seat, and the link member is rotated around the second horizontal axis with respect to the seat portion of the seat. When the seat portion of the seat is set to the second posture by swinging, the rear side of the rear side of the second horizontal axis core at the rear portion of the seat portion of the seat is lifted upward. The portion will draw an arcuate locus.
[0013]
According to a fourth aspect of the present invention, the arcuate guide portion is provided on the rear side portion of the seat seat portion on the rear side of the second horizontal axis, or on the rear portion of the rear wall portion of the recess portion of the seat support portion. Thus, according to the feature of claim 4, when the seat portion of the seat is changed to the second posture, the rear side portion of the seat seat portion on the rear side of the second horizontal axis is along the arcuate guide portion. Therefore, the seat portion of the seat can be smoothly changed to the second posture.
[0014]
[VI]
According to the feature of claim 5, the “action” described in the preceding items [I] to [V] is provided in the same manner as in any one of claims 1 to 4. It has a special “action”.
As described in the preceding item [II], the link member is swung upwardly around the first horizontal axis from the use posture of the seat portion of the seat, and the link member is rotated around the second horizontal axis with respect to the seat portion of the seat. When the seat portion of the seat is set to the second posture by swinging the seat, the front portion of the seat portion of the seat is lifted upward with the rear portion of the seat portion riding on the rear portion of the seat support portion. It becomes a state.
[0015]
According to the feature of claim 5, when the seat portion of the seat is changed to the second posture, the blocking portion that prevents the seat portion of the seat from moving in the left-right direction is provided behind the rear wall portion in the recess of the seat support portion. Since it is provided on the side part, when the seat portion of the seat is changed to the second posture, the movement of the seat portion of the seat to the second posture is prevented while the seat portion of the seat is prevented from moving in the left-right direction. It can be performed stably with little.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
1 and 4 show a vicinity of a rear seat in a four-door (or five-door) passenger car, and a luggage compartment (not shown) is formed on the rear side of the rear seat. The rear part of the lower floor 1 on which a passenger seated on the rear seat puts his / her foot is raised upward and extended rearward to form an upper floor 2. The carpet 3 is laid on the lower floor 1, the rear part of the carpet 3 extends to the vicinity of the front part of the upper floor 2, and the seat support part 4 is fixed to the upper floor 2 to support the upper floor 2 and the seat. The rear part of the carpet 3 enters between the part 4.
[0017]
As shown in FIGS. 4 and 5, the seat support portion 4 is integrally formed of synthetic resin, and the seat support portion 4 is formed by the front wall portion 4a, the rear wall portion 4b, the lateral wall portion 4c, and the middle wall portion 4d. Two concave portions 4e having a bottom and opened upward are formed in the front portion of the head. Two arcuate planar guide parts 4f are formed at the rear part of the sheet support part 4 so as to be connected to the rear wall part 4b of the sheet support part 4, and a groove is formed at the center of each of the two guide parts 4f. A blocking portion 4g is formed along the guide portion 4f, and a claw-shaped engaging portion 4h is formed at the rear of the blocking portion 4g. An opening 4i is formed between the two guide portions 4f.
[0018]
As shown in FIGS. 4 and 8 (a), the support pipe 5 is fixed to the front portion of the upper floor 2 by a bolt 6 via a bracket 5a, and is below the front wall portion 4a of the seat support portion 4. A support pipe 5 is located. The support pipe 5 is provided with a receiving portion 5b, and the front wall portion 4a of the seat support portion 4 is mounted on and connected to the receiving portion 5b of the support pipe 5. A bracket 5 c is fixed to the support pipe 5, and a connecting portion 7 made of synthetic resin is attached to the bracket 5 c of the supporting pipe 5, and the connecting portion 7 protrudes upward from the opening 4 j of the front wall portion 4 a of the seat support portion 4. ing. As shown in FIGS. 4 and 5, a support fitting 9 having a seat belt (not shown) buckle portion 8 is fixed to the center of the rear portion of the upper floor 2, and the buckle is opened from the opening 4 i of the seat support portion 4. Part 8 protrudes upward.
[0019]
As shown in FIGS. 1 and 5, two split-type backrest portions 10 in the rear seat are connected to the rear portion of the upper floor 2 with bolts via support brackets 11. The support pipe 12 is connected to the rear portion of the upper floor 2 together with the support fitting 11 via a bracket 12 a by a bolt, and an ISOFIX type connection portion 12 b for connecting a child seat (not shown) is connected to the support pipe 12. The connecting portion 12b of the support pipe 12 is configured to be positioned directly below the backrest portion 10 by being fixed.
[0020]
As shown in FIGS. 1, 5, and 6, a link member 15 is configured by bending a metal wire in a U shape in a plan view (see FIG. 6), and two fulcrum portions 15 a are formed on the link member 15, A stopper portion 15b between the two fulcrum portions 15a is provided. An arm portion 15c extends from a fulcrum portion 15a of the link member 15, and the arm portion 15c of the link member 15 is bent in an L shape in a side view (see FIG. 1).
[0021]
As shown in FIGS. 5 and 6, two split seats 13 are prepared in the rear seat, and a frame 14 in which metal wires are assembled in a frame shape is embedded in the back side portion of the seat 13. An arm portion 14 a and a U-shaped locking portion 14 b extending from the frame 14 protrude from the back side portion of the seat portion 13, and a link member around the second horizontal axis P <b> 2 of the arm portion 14 a of the frame 14. Fifteen arm portions 15c are swingably connected. A handle portion 16 configured in a loop shape with a belt-like cloth material is attached to the center of the front portion of the frame 14, and the handle portion 16 protrudes from the seat portion 13. As shown in FIGS. 1 and 2, the rear side portion of the rear portion of the arm portion 14 a of the frame 14 in the seat portion 13 is formed in an arcuate surface that protrudes downward.
[0022]
The state shown in FIG. 1 is a state in which the fulcrum portion 15 a of the link member 15 is attached to the connecting portion 7, and is a use state of the seat portion 13 with the seat portion 13 placed on the seat support portion 4. In the use state of the seat portion 13, the recess 4 e of the seat support portion 4 is closed by the back side portion of the front portion of the seat portion 13, and the back side portion of the seat portion 13 on the rear side of the arm portion 14 a of the frame 14 is It rides on the guide part 4 f of the support part 4, and the engaging part 4 h of the sheet support part 4 enters the locking part 14 b of the frame 14. Due to the engaging action of the locking portion 14 b of the frame 14 and the engaging portion 4 h of the seat support portion 4, rattling of the seat portion 13 in the left-right direction when the seat portion 13 is in use is suppressed.
[0023]
As shown in FIG. 1, in the use state of the seat portion 13, the fulcrum portion 15a and the stopper portion 15b of the link member 15 are close to the front wall portion 4a of the seat support portion 15, and the arm portion 15c of the link member 15 is The seat support portion 15 is close to the lateral wall portion 4c and the middle wall portion 4d. The arm part 15 c of the link member 15 enters the guide part 4 f of the sheet support part 4 beyond the rear wall part 4 b of the sheet support part 4. As a result, the volume of the recess 4e of the seat support 4 is not reduced by the link member 15.
[0024]
In this case, when the seat portion 13 is in use, the arm portion of the link member 15 is located more than the position of the fulcrum portion 15a of the link member 15 (first horizontal axis P1 of the connecting portion 7) in a side view (see FIG. 1). The position of the tip of 15c (second horizontal axis P2) is configured to be on the lower side. When the occupant is seated on the rear seat in the use state of the seat portion 13, the rear wall portion 4b of the seat support portion 4 is positioned in front of the occupant ground contact position D of the occupant in the seat portion 13 in a side view (see FIG. 1). doing.
[0025]
Next, the change from the use state of the seat portion 13 to the first posture of the seat portion 13 will be described. In the state of use of the seat portion 13 shown in FIG. 1, if the front portion of the seat portion 13 is pulled out slightly diagonally forward and upward (upper left in FIG. 1) with the handle portion 16, the front portion of the seat portion 13 is lifted. However, the rear side portion of the seat portion 13 on the rear side of the arm portion 14a of the frame 14 slightly moves in an arc shape along the guide portion 4f of the seat support portion 4, and the locking portion 14b of the frame 14 becomes the seat support portion. 4 away from the engaging portion 4h.
[0026]
In this state, as shown in FIG. 3, the link member 15 is swung upward around the first horizontal axis P <b> 1 of the connecting portion 7, and the rear portion of the seat portion 13 is lifted to support the seat portion 13 as a whole. The seat portion 13 can be set in a first posture that stands up at the front portion of the seat support portion 4 with the front portion of the seat portion 13 facing down. In this case, the stopper portion 15b of the link member 15 is in contact with the front wall portion 4a of the seat support portion 4, and the link member 15 swings forward from the first posture of the seat portion 13 (leftward in FIG. 3). It does not move. Since the holding portion 13a in which the belt-like cloth is looped is attached to the back side portion of the seat portion 13, the headrest 17 is removed from the backrest portion 10 and is held by the holding portion 13a of the seat portion 13, and then the backrest portion 10 is removed. Tilt forward.
[0027]
Next, a change from the usage state of the seat portion 13 to the second posture of the seat portion 13 will be described. In the state of use of the seat portion 13 shown in FIG. 1, the handle portion 16 is held in the same manner as described above, and the front portion of the seat portion 13 is pulled out obliquely forward and upward (upper left in FIG. 1). Is separated from the engaging portion 4 h of the seat support portion 4. As shown in FIG. 2, the link member 15 is swung upwardly around the first horizontal axis P1 of the connecting portion 7, and the link member 15 is moved around the second horizontal axis P2 of the seat 13 (frame 14). The seat portion 13 is set to a second posture in which the seat portion 13 is lifted and the front portion of the seat portion 13 is lifted upward to open the recess 4e of the seat support portion 4.
[0028]
In this case, the rear part of the rear side of the arm part 14a of the frame 14 in the seat part 13 moves in an arc along the guide part 4f of the seat support part 4, while the front part of the seat part 13 is lifted upward. As a result, the seat portion 13 can be smoothly lifted upward. As shown in FIG. 7, when the seat portion 13 is lifted upward, the locking portion 14 b of the frame 14 moves away from the engaging portion 4 h of the seat support portion 4 and then enters the blocking portion 4 g of the seat support portion 14. Thus, the movement of the seat portion 13 to the second posture can be stably performed with little backlash while preventing the seat portion 13 from moving in the left-right direction.
[0029]
As shown in FIG. 5, after setting the seat part 13 to the 1st and 2nd attitude | position, it is comprised so that the fulcrum part 15a of the link member 15 can be removed from the connection part 7, and the seat part 13 can be taken out outside a vehicle. Next, the structure of the connecting portion 7 will be described. As shown in FIG. 9, the connecting portion 7 is constituted by a base portion 18 made of a synthetic resin and having a U-shape in plan view and an arm portion 19 made of a synthetic resin. The base portion 18 includes a claw-like engaging portion 18a and a stopper portion 18b, an upward recess-shaped cutout portion 18c, and positioning openings 18d and 18e. The arm part 19 includes a grip part 19a, a boss part 19b, and a concave part 19c and a convex part 19d formed in the boss part 19b.
[0030]
In the base part 18 and the arm part 19 configured as described above, the boss part 19b of the arm part 19 is fitted into the notch part 18c of the base part 18 as shown in FIGS. Thus, the boss portion 19b of the arm portion 19 is rotatably supported around the first horizontal axis P1 of the connecting portion 7 (the notch portion 18c of the base portion 18). The base portion 18 is inserted into the bracket 5 c of the support pipe 5, and the engaging portion 18 a of the base portion 18 is engaged with the bracket 5 c of the support pipe 5 while the stopper portion 18 b of the base portion 18 is abutted. It is attached to the bracket 5c of the support pipe 5. An upward recessed recess 5e is formed in the bracket 5c of the support pipe 5, and the notch 5e of the support pipe 5 and the notch 18c of the base 18 coincide.
[0031]
The state shown in FIG. 8A is a state in which the convex portion 19d of the arm portion 19 enters the opening 18d of the base portion 18, and the arm portion 19 is lightly positioned in the open posture, and the concave portion 19c of the arm portion 19 is the base portion. It corresponds to the 18 notches 18c. Thereby, in the open posture of the arm part 19, the fulcrum part 15a of the link member 15 can be put into the recessed part 19c of the arm part 19, and the fulcrum part 15a of the link member 15 can be taken out from the recessed part 19c of the arm part 19. .
[0032]
The state shown in FIG. 8B is a state in which the fulcrum part 15a of the link member 15 is placed in the concave part 19c of the arm part 19, the convex part 19d of the arm part 19 enters the opening 18e of the base part 18, and the arm part 19 It is in a state of being lightly positioned in the holding posture. In the holding posture of the arm portion 19, the fulcrum portion 15 a of the link member 15 rotates (swings) around the first horizontal axis P <b> 1 of the connecting portion 7. Even if a force is applied to lift the fulcrum 15a of the link member 15 upward, the position where the aforementioned force is applied (the fulcrum 15a of the link member 15) is the first horizontal axis P1 ( Since the arm portion 19 coincides with the boss portion 19b) of the arm portion 19, the arm portion 19 does not move from the holding posture shown in FIG.
[0033]
As a result, in the use posture of the seat portion 13 and in the first and second postures, the arm portion with the fulcrum portion 15a of the link member 15 placed in the recess portion 19c of the arm portion 19 as shown in FIG. 19 is set to the holding posture. After changing the seat portion 13 to the first and second postures, the link member 15 is held by holding the grip portion 19a of the arm portion 19 and operating the arm portion 19 to the open posture as shown in FIG. The fulcrum part 15a can be removed from the connecting part 7 and the seat part 13 can be taken out of the vehicle.
[0034]
[Another Embodiment of the Invention]
In the guide part 4f of the seat support part 4 shown in FIGS. 1, 4 and 5, and in the back side part on the rear side of the arm part 14a of the frame 14 in the seat part 13, one is configured in an arc shape and the other is configured in an arc shape. Without the other, the other plurality of places abut one side, so that the back side portion of the seat portion 13 on the rear side of the arm portion 14a of the frame 14 moves in an arc shape along the guide portion 4f of the seat support portion 4. You may comprise as follows.
[0035]
4, 5, and 7, the blocking portion 4 g of the seat support portion 4 is formed in a convex shape, and a groove portion is provided on the back side portion of the seat portion 13 on the rear side of the arm portion 14 a of the frame 14. The convex-shaped blocking portion 4g enters the groove portion of the rear side portion of the rear portion of the arm portion 14a of the frame 14 in the seat portion 13, thereby preventing the seat portion 13 from moving in the left-right direction. Also good.
[0036]
Instead of the two split seats 13 in the rear seat, one seat 13 extending over substantially the entire width in the vehicle may be prepared, and the present invention may be applied to such a seat 13. If comprised in this way, the one link member 15 should just be prepared. The present invention may be applied not only to the rear seat, but also to a front seat for one person such as a passenger seat, or to a seat for a commercial vehicle such as a truck, an industrial vehicle such as a sightseeing bus, or a construction machine. .
[0037]
【The invention's effect】
According to the first aspect of the present invention, in the seat structure of the vehicle, when the seat support portion that supports the seat portion of the seat from the lower side is formed with the recessed portion for opening the case upward, the front of the seat portion of the seat is formed. The seat seat can be set in a second posture in which the seat is lifted upward to open the recess of the seat support, so that the top of the recess of the seat support can be greatly opened, and the front side of the seat support Therefore, it is possible to easily put in and out the object by putting a hand into the concave portion of the seat support portion, and the functionality of the vehicle can be improved.
[0038]
According to the feature of the first aspect, the seat portion of the seat can be set in a first posture standing at the front portion of the seat support portion with the front portion of the seat portion of the seat down, and the seat backrest portion is supported by the seat. Since it can be tilted forward along the part without hindrance, the function of double folding is not impaired.
According to the feature of claim 1, in the use posture of the seat portion of the seat in which the seat portion of the seat is placed on the seat support portion, the recess portion of the seat support portion is blocked by the seat portion of the seat, and the recess portion of the seat support portion Since the thing put into the container does not go out, the function as the container is not impaired.
[0039]
According to the feature of claim 2, as in the case of claim 1, the “effect of the invention” of the above-mentioned claim 1 is provided. In addition to the “effect of the invention”, the following “effect of the invention” is provided. It has.
According to the feature of claim 2, in the use posture of the seat portion of the seat in which the seat portion of the seat is placed on the seat support portion, the volume of the concave portion of the seat support portion is increased by the second horizontal axis (the other end portion of the link member). Since the state of being narrowed does not occur, the function as a container is not impaired.
[0040]
According to the second aspect of the present invention, in the use posture of the seat portion of the seat, even if a forward inertia force acts on the seat portion of the seat due to, for example, a collision from the front surface, the link member is around the first horizontal axis. Thus, the link member prevents the seat seat portion from floating upward, so that the influence on the occupant due to the lift of the seat seat portion can be suppressed.
[0041]
According to the feature of claim 3, the “effect of the invention” of claim 1 or 2 is provided as in the case of claim 1 or 2, and in addition to the “effect of invention”, the following “ The effect of the invention is provided.
According to the third aspect of the present invention, for example, when a forward inertial force acts on the occupant seated on the seat due to a collision from the front or the like, the occupant tries to move forward (the occupant's buttocks on the seat seat). The movement of the occupant's buttocks forward can be stopped by the rear wall of the recessed portion of the seat support portion, and the influence on the occupant can be suppressed. It was.
[0042]
According to the feature of claim 4, the “effect of the invention” of the above-described claims 1 to 3 is provided as in the case of any one of claims 1 to 3. The following “effects of the invention” are provided.
According to the feature of claim 4, when the seat portion of the seat is changed to the second posture, the rear side portion on the rear side of the second horizontal axis core in the rear portion of the seat portion of the seat is along the arcuate guide portion. As a result of being guided, the seat portion of the seat can be smoothly changed to the second posture, and the operability can be improved.
[0043]
According to the feature of claim 5, the “effect of the invention” of the above-mentioned claim 1 to 4 is provided as in the case of any one of claims 1 to 4, and in addition to this “effect of the invention”. The following “effects of the invention” are provided.
According to the feature of claim 5, when the seat portion of the seat is changed to the second posture, the movement of the seat portion of the seat to the second posture is prevented while the seat portion of the seat is prevented from moving in the left-right direction. As a result, the operation can be performed stably with less, and the operability can be improved.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of the seat and the seat support portion in the vicinity of the seat seat in the use posture. FIG. 2 is a longitudinal side view of the seat and the seat support portion in the second posture of the seat seat. FIG. 3 is a longitudinal side view of the seat seat portion in the first posture in the vicinity of the seat and the seat support portion. FIG. 4 is a perspective view of the lower and upper floors and the vicinity of the seat support portion. FIG. 6 is a perspective view of the vicinity of the frame and the link member in the seat portion of the seat. FIG. 7 is a longitudinal front view of the vicinity of the blocking portion of the seat support portion. 8] Longitudinal side view of the vicinity of the connecting portion in the open posture and the holding posture. [FIG. 9] A perspective view showing the base portion and arm portion of the connecting portion, and the bracket of the support pipe.
4 seat support portion 4b rear wall portion 4e recess 4f guide portion 4g blocking portion 10 backrest portion 13 seat portion 15 link member P1 first horizontal axis P2 second horizontal axis D collar contact position

Claims

A seat provided with a seat portion and a backrest portion, and a seat support portion for supporting the seat portion of the seat from below,
At the front part of the sheet support part, a recess for the container is opened upward and formed,
One end of the link member is connected to the front of the recess of the seat support portion so as to be swingable around the first horizontal axis, and the other side of the link member is connected to the back side portion of the seat portion of the seat in the middle in the front-rear direction. The end is connected to the second horizontal axis so as to be swingable,
By swinging the link member upward around the first horizontal axis, the entire seat portion of the seat is separated from the seat support portion and stands at the front portion of the seat support portion. The seat portion of the seat is configured to be freely changeable,
The link member is swung upwards around the first horizontal axis, and the link member is swung around the second horizontal axis with respect to the seat part of the seat. A seat structure for a vehicle in which a seat portion of the seat is configured to be freely changeable to a second posture in which a front portion is lifted upward to open a concave portion of the seat support portion.

In the use posture of the seat portion of the seat in which the seat portion of the seat is placed on the seat support portion, the second horizontal axis is on the rear side of the rear wall portion in the recess of the seat support portion, and the first horizontal The vehicle seat structure according to claim 1, wherein the link member is configured to be located below the shaft core.

3. The vehicle seat structure according to claim 1, wherein a rear wall portion in the concave portion of the seat support portion is positioned in front of a passenger's buttocks contact position in the seat portion of the seat.

When the seat portion of the seat is changed to the second posture, an arcuate guide portion that guides a rear side portion of the seat portion of the seat on the rear side of the second horizontal axis is provided in the seat portion of the seat. The vehicle seat according to any one of claims 1 to 3, wherein the vehicle seat according to any one of claims 1 to 3 is provided in a rear side portion on the rear side of the second horizontal axis core or a rear side portion of a rear wall portion in a concave portion of the seat support portion. Construction.

When the seat portion of the seat is changed to the second posture, the rear portion of the rear wall portion in the recess of the seat support portion is provided with a blocking portion that prevents the seat portion of the seat from moving in the left-right direction. The vehicle seat structure according to any one of claims 1 to 4.