JP4253958B2 - Child seat mounting structure - Google Patents

Child seat mounting structure Download PDF

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Publication number
JP4253958B2
JP4253958B2 JP32067999A JP32067999A JP4253958B2 JP 4253958 B2 JP4253958 B2 JP 4253958B2 JP 32067999 A JP32067999 A JP 32067999A JP 32067999 A JP32067999 A JP 32067999A JP 4253958 B2 JP4253958 B2 JP 4253958B2
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vehicle body
portions
body floor
pair
engaged
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JP2001138783A (en
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宏明 中尾
正志 大塚
裕史 小澤
大輔 坊田
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Mazda Motor Corp
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Mazda Motor Corp
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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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • B60N2/289—Fixation to a transversal anchorage bar, e.g. isofix coupled to the vehicle frame

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は子供用シートの取付構造に関するものである。
【０００２】
【従来の技術】
自動車等の車両のシートに体格の小さい子供を安全に着座させておくため、別途子供用シートをシートクッション上に配置、固定して、この子供用シートに子供を着座させることが行われる。子供用シートの車体に対する固定手法として、例えば特開平６−３４４８１７号公報に示すように、シートクッションとシートバックとの隙間に、車体に固定される被係合部材を配置して、シートクッション上に配置した子供用シートに設けた係合部を上記被係合部材に係合させることが提案されている。
【０００３】
【発明が解決しようとする課題】
ところで、上記係合部と被係合部材とは精度よく位置決めされる必要があるが、被係合部材の車体への取付精度を十分に確保することが難しく、この点において改善の余地がある。すなわち、通常、被係合部材（係合部）は左右一対設けられるが、車体に固定された状態において左右一対の被係合部材同士の間での位置関係を十分精度よく確保することが難しいものとなる。例えば、左右一対の被係合部材を車体フロアに設けた左右一対の取付孔を利用して個々独立して固定するとき、この左右一対の取付孔の位置関係そのものの精度が十分に確保しずらいために、結果として、車体フロアに固定された左右一対の被係合部材同士の位置関係が十分な精度を有するものとはならない。また、左右一対の被係合部材そのものは比較的小さな形状で済むものの、その剛性を十分に確保することが望まれることになる。
【０００４】
本発明は以上のような事情を勘案してなされたもので、その目的は、左右一対の被係合部材を車体フロアに固定する場合に、左右一対の被係合部材同士の位置関係の精度を十分高めると共に、その剛性をも十分確保できるようにした子供用シートの取付構造を提供することにある。
【０００５】
【課題を解決するための手段】
前記目的を達成するため、本発明にあっては次のようような解決手法を採択してある。すなわち、特許請求の範囲における請求項１に記載のように、
車体フロア上に取付けられるシートのシートクッションとシートバックとの隙間に配置される被係合部材に対して、シートクッション上に配置される子供用シートの係合部が係合される子供用シートの取付構造であって、
前記被係合部材をそれぞれ設けるようにしつつ車幅方向に離間して配置される両端部と、板面を車体フロア側に向けつつ該両端部同士を真っ直ぐに連結する板状の中間部と、を有する固定部材を有し、
前記固定部材の両端部に、車体フロアに締結されると共に前記中間部が接続されるベース部と、該ベース部から前方側に向かうに従って前記車体フロアに対して上方に離間するように延ばされる前方突出部と、がそれぞれ設けられ、
前記両ベース部に、前記車体フロアに該ベース部を締結するためのボルトを挿通させる取付孔がそれぞれ形成され、
前記両ベース部のうちの一方のベース部の取付孔が略円形に形成され、
前記両ベース部のうちの他方のベース部の取付孔が車幅方向に延設する略長円形に形成され、
前記両前方突出部が、平板状の板部と、該板部の車幅方向両側に配置された状態をもって前後方向に延びる一対の側壁部と、をそれぞれ有し、
前記各被係合部材が、車幅方向に離間しつつ前後方向に延びる一対の脚部と、該一対の脚部の前端を連結する連結部と、を有し、
前記各被係合部材の一対の脚部が、前記各前方突出部における前記一対の側壁部に対して接触された状態で該各前方突出部に溶接されている、
ようにしてある。上記解決手法を前提とした好ましい態様は、特許請求の範囲における請求項２以下に記載のとおりである。
【０００６】
【発明の効果】
請求項１に記載された発明によれば、１つの固定部材における両端部に被係合部材を設けることにより、左右一対の被係合部材同士の位置関係を極めて精度のよいものとすることができる。また、左右一対の被係合部材を有する両端部同士が中間部によって連結されていることにより、全体として剛性を高めることができる。
【０００７】
請求項２に記載された発明によれば、被係合部材に作用する上下方向の荷重に対する強度向上の上で好ましいものとなる。
請求項４に記載された発明によれば、被係合部材の下方への変位を規制して、子供用シートをしっかりと支持させる上で好ましいものとなる。
【０００８】
【発明の実施の形態】
図１、図２において、１は後席用のシートであり、実施形態では室内幅のほぼ全長に渡って長く延びるベンチ式のシートとされている。このシート１は、シートクッション２とシートバック３とからなる。シートクッション２は、車体フロア４に取付けられ、シートバック３は取付ブラケット５を介して車体フロア４に揺動自在として取付、支持される。
【０００９】
シートクッション２上には、子供用シート１１が配置、固定される。このため、シートクッション２とシートバック３との隙間には、子供用シート１１の取付、固定用の左右一対の被係合部材１２、１３が配置される。この被係合部材１２、１３は、固定部材２１を利用して車体フロア４に固定される。すなわち、固定部材２１は、後述するように、両端部（左右一対の端部）２２，２３と、この両端部２２と２３同士を連結する中間部２４とを有し、被係合部材１２は一方の端部２２に固定され、被係合部材１３は他方の端部２３に固定される。そして、固定部材２１は、その両端部２２、２３部分で車体フロア４に固定され、これにより左右一対の被係合部材１２，１３が車体フロア４に固定される。
【００１０】
次に、図３以下を参照しつつ、左右一対の被係合部材１２，１３と固定部材２１とについて詳述する。まず、固定部材２１は、全体的に、剛性の優れた板材例えば鉄板等の金属板を加工することにより形成されて、大別して、前述した両端部２２，２３と、この両端部２２と２３とを連結する中間部２４とを有する。図３〜図５に示すように、一方の端部２２は、中間部２４の延長部分となるベース部２２ａと、このベース部２２ａから前方へ向けて突出する前方突出部２２ｂを有する。
【００１１】
前記前方突出部２２ｂは、平板状の底部４０ａと、底部４０ａの左右端部から上方へ折曲されて延びる左右一対の側壁部４０ｂとを有する。一方の被係合部材１２は、上記前方突出部２２ｂに対して、例えば溶接によって固定（一体化）されている。この被係合部材１２は、ストライカとなるもので、鉄棒等の剛性の優れた棒材を略Ｕ字状に折曲形成してなり、左右一対の脚部１２ａと、左右一対の脚部１２ａの前端同士を連結する連結部１２ｂとを有する。このような被係合部材１２は、上記連結部１２ｂが前方突出部２２ｂよりも前方へ位置されかつ車幅方向に延びた状態で、その左右一対の脚部１２ａが、前方突出部２２ｂの底部４０ａと左右一対の側壁部４０ｂとに対して接触された状態で当該前方突出部２２ｂに溶接、一体化されている。
【００１２】
前方突出部２２ｂには、下方へ向けて突出する補強用の支持部材（突出部）２５が一体化されている。この支持部材２５は、剛性に優れた例えば鉄板等の金属板を折曲形成することにより、上方へ向けて開口された略Ｕ字状に形成されている。すなわち、支持部材２５は、平板状の底部２５ａと、底部２５ａの左右端から上方へ延びる左右一対の側壁部２５ｂとを有し、左右一対の側壁部２５ｂが、前方突出部２２ｂにおける左右一対の側壁部４０ｂを外側から包むようにして当該側壁部４０ｂに溶接等により固定されている。支持部材２５は、その側壁部２５ｂが上下方向にかなり長くなっていて、その底部２５ａが前方突出部２２ｂの底部４０ａよりもかなり低い位置に位置されており、この底部２５ａが被係合部材１２の下方において、車体フロア４に着座されるようになっている（支持部材２５の下面が車体フロア４に対向される）。
【００１３】
前記ベース部２２ａには取付孔２６が形成され、この取付孔２６に挿通される固定具２７（例えば取付ボルトで、図１を参照）を、車体フロア４に形成された取付孔（図示略）に螺合することにより、ベース部２２ａが車体フロア４に固定される。
【００１４】
次に、図６〜図８を参照しつつ、他方の端部２３部分について説明する。この他方の端部２３は、中間部２４の延長部分となるベース部２３ａと、このベース部２３ａから前方へ向けて突出する前方突出部２３ｂを有する。前方突出部２３ｂは、平板状の底部４１ａと、底部４１ａの左右端部から上方へ折曲されて延びる左右一対の側壁部４１ｂとを有する。他方の被係合部材１３は、上記前方突出部２３ｂに対して、例えば溶接によって固定（一体化）されている。この被係合部材１３は、ストライカとなるもので、鉄棒等の剛性の優れた棒材を略Ｕ字状に折曲形成してなり、左右一対の脚部１３ａと、左右一対の脚部１３ａの前端同士を連結する連結部１３ｂとを有する。このような被係合部材１３は、上記連結部１３ｂが前方突出部２３ｂよりも前方へ位置されかつ車幅方向に延びた状態で、その左右一対の脚部１３ａが、前方突出部２３ｂの底部４１ａと左右一対の側壁部４１ｂとに対して接触された状態で当該前方突出部２３ｂに溶接、一体化されている。
【００１５】
前方突出部２３ｂには、下方へ向けて突出する補強用の支持部材（突出部）３５が一体化されている。この支持部材３５は、剛性に優れた例えば鉄板等の金属板を折曲形成することにより、上方へ向けて開口された略Ｕ字状に形成されている。すなわち、支持部材３５は、平板状の底部３５ａと、底部３５ａの左右端から上方へ延びる左右一対の側壁部３５ｂとを有し、左右一対の側壁部３５ｂが、前方突出部２３ｂにおける左右一対の側壁部４１ｂを外側から包むようにして当該側壁部４１ｂに溶接等により固定されている。支持部材３５は、その側壁部３５ｂが上下方向にかなり長くなっていて、その底部３５ａが前方突出部２３ｂの底部４１ａよりもかなり低い位置に位置されており、この底部３５ａが被係合部材１３の下方において、車体フロア４に着座されるようになっている（支持部材３５の下面が車体フロア４に対向）。
【００１６】
前記ベース部２３ａからは、車幅方向外側に向けてかつ後方へ長く延びる延長部２３ｃが延設されている。この延長部２３ｃには２つの取付孔３６が形成され、この取付孔３６に挿通される挿通される固定具３７（例えば取付ボルトで、図１を参照）を、車体フロア４に形成された取付孔（図示略）に螺合することにより、延長部２３ｃが車体フロア４に固定される。このとき、一方の取付孔３６に挿通される固定具３７は、シートバック３を車体フロア４に支持するための取付ブラケット５を共締めする。つまり、車体フロア４に形成されている取付ブラケット５用の取付孔が、他方の端部２３の車体フロア４への取付用として兼用されている。
【００１７】
上記延長部２３ｃは、ベース部２３ａに対して、上下方向に短く延びる縦壁部４５を介して連結されている。この縦壁部４５の形成により、ベース部２３ａと延長部２３ｃとの連結剛性が向上される。同様に、ベース部２３ａと中間部２４とが、上下方向に比較的長く延びる縦壁部４６によって連結されて、この連結剛性が向上されている。さらに、一方の端部２２におけるベース部２２ａと中間部２４とが、上下方向に短く延びる縦壁部４７によって連結されて、その連結剛性が向上されている。このように、縦壁部４５〜４７の形成によって、固定部材２１の剛性が十分に確保されることになる。
【００１８】
ここで、左右一対の被係合部材１２，１３の各連結部１２ｂ、１３ｂの高さ位置は、互いに同じ高さ位置となるように設定されている。この両被係合部材１２と１３とは、１つの固定部材２１に対して固定される関係上、その相互の位置関係が極めて精度のよいものとなる。つまり、両端部２２，２３の車体フロア４への連結位置が多少位置ずれしたとしても（この位置ずれ吸収のために、例えば一方の端部２２側の取付孔２６が多少横長に形成されている）、左右一対の係合部１２と１３との相対的な位置関係は精度よく所望の位置関係とされる。
【００１９】
子供用シート１１の背面側には、前記被係合部材１２，１３に着脱自在に係合される左右一対の係合部５２，５３が設けられている。この係合部５２，５３は、既知の適宜の構造とすることができるが、例えば被係合部材１２，１３が挿入される後方へ向けた開口された係合溝と、この係合溝を開閉するロックレバーと、ロックレバーが係合溝を閉じる方向に付勢するスプリングとを有するものとして構成することができる。そして、上記ロックレバーは、子供用シート１１を後方へ向けて押圧変位させたときに、被係合部材１２，１３に押圧されて係合溝内に被係合部材１２，１３が子に進入可能なように、その後端面にテーパ面が形成される。係合溝内に被係合部材１２、１３が深く進入されたときに、スプリングによりロックレバーが係合溝を塞いで、被係合部材１２，１３の係合溝からの抜けが規制される（ロック状態）。
【００２０】
以上実施形態について説明したが、本発明はこれに限らず、例えば次のような場合をも含むものである。被係合部材１２，１３と係合部５２，５３とは、適宜の構造のものを採択し得る。シート１がベンチ式（複数人用）の場合、被係合部材１２，１３を有する固定部材を複数設置することができ（例えば固定部材を左右一対設ける場合は、左右対称構造として設置すればよい）、また法定着座定員の範囲で固定部材２１を３個以上設けることもできる。勿論、シート１としては、ベンチ式に限らず、１人用として独立した形態のものであってもよい。本発明の目的は、明記されたものに限らず、実質的に好ましいあるいは利点として表現されたものを提供することをも暗黙的に含むものである。
【図面の簡単な説明】
【図１】本発明の一実施形態を示す簡略斜視図。
【図２】図１の実施形態において、被係合部材の配置位置を示す側面図。
【図３】固定部材と被係合部材とを示す平面図。
【図４】図３のＸ４−Ｘ４線相当断面図。
【図５】一方の被係合部材と固定部材の一方の端部とを図３左方から見たときの図。
【図６】図３のＸ６−Ｘ６線相当断面図。
【図７】他方の被係合部材と固定部材の他方の端部とを図３左方から見たときの図。
【図８】図３のＸ８−Ｘ８線相当断面図。
【符号の説明】
２：シートクッション
３：シートバック
４：車体フロア
５：シートバック用取付ブラケット
１１：子供用シート
１２：一方の被係合部材
１３：他方の被係合部材
２１：固定部材
２２：固定部材の一方の端部
２３：固定部材の他方の端部
２４：中間部
２５：支持部材（一方の被係合部材に対する突出部）
２６：取付孔
２７：固定具
３５：支持部材（他方の被係合部材に対する突出部）
３６：取付孔
３７：固定具
４６，４７：縦壁部
５２，５３：係合部（子供用シート側）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child seat mounting structure.
[0002]
[Prior art]
In order to allow a child with a small physique to safely sit on a seat of a vehicle such as an automobile, a child seat is separately placed and fixed on a seat cushion, and the child is seated on the child seat. As a method for fixing the child seat to the vehicle body, for example, as shown in JP-A-6-344817, an engaged member fixed to the vehicle body is disposed in the gap between the seat cushion and the seat back, and It has been proposed to engage an engagement portion provided on a child seat arranged in the above-mentioned engaged member.
[0003]
[Problems to be solved by the invention]
By the way, although it is necessary to position the engaging part and the engaged member with high precision, it is difficult to sufficiently secure the mounting accuracy of the engaged member to the vehicle body, and there is room for improvement in this respect. . That is, normally, a pair of left and right engaged members (engagement portions) are provided, but it is difficult to ensure a sufficient positional relationship between the pair of left and right engaged members when fixed to the vehicle body. It will be a thing. For example, when the pair of left and right engaged members are individually fixed using the pair of left and right mounting holes provided on the vehicle body floor, the positional relationship between the pair of left and right mounting holes is not sufficiently secured. Therefore, as a result, the positional relationship between the pair of left and right engaged members fixed to the vehicle body floor does not have sufficient accuracy. Further, although the pair of left and right engaged members themselves may have a relatively small shape, it is desired to sufficiently secure the rigidity.
[0004]
The present invention has been made in view of the above circumstances, and its purpose is to improve the positional relationship between the pair of left and right engaged members when the pair of left and right engaged members are fixed to the vehicle body floor. It is an object of the present invention to provide a child seat mounting structure capable of sufficiently increasing the rigidity and ensuring sufficient rigidity.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the following solution is adopted in the present invention. That is, as described in claim 1 in the claims,
A child seat in which an engagement portion of a child seat disposed on the seat cushion is engaged with an engaged member disposed in a gap between the seat cushion and the seat back of the seat mounted on the vehicle body floor The mounting structure of
Both end portions arranged to be spaced apart in the vehicle width direction while providing each of the engaged members, and a plate-like intermediate portion that straightly connects the both end portions with the plate surface facing the vehicle body floor side , A fixing member having
A base portion fastened to the vehicle body floor and connected to the intermediate portion at both ends of the fixing member, and a front extending so as to be separated upward with respect to the vehicle body floor from the base portion toward the front side And a protrusion, respectively,
Mounting holes for inserting bolts for fastening the base portion to the vehicle body floor are formed in the both base portions, respectively.
The mounting hole of one of the base parts is formed in a substantially circular shape,
The mounting hole of the other base part of the two base parts is formed in a substantially oval shape extending in the vehicle width direction,
Each of the front protrusions has a flat plate portion and a pair of side wall portions extending in the front-rear direction with the plate portions being disposed on both sides in the vehicle width direction,
Each of the engaged members has a pair of leg portions that extend in the front-rear direction while being separated in the vehicle width direction, and a connecting portion that connects the front ends of the pair of leg portions,
A pair of leg portions of each engaged member is welded to each of the front protrusions in contact with the pair of side wall portions of each of the front protrusions;
It is like that. A preferred mode based on the above solution is as described in claim 2 and the following claims.
[0006]
【The invention's effect】
According to the first aspect of the present invention, by providing the engaged members at both ends of one fixed member, the positional relationship between the pair of left and right engaged members can be made extremely accurate. it can. Moreover, since the both ends which have a pair of left and right to-be-engaged members are connected by the intermediate part, rigidity can be improved as a whole.
[0007]
According to the invention described in claim 2, it is preferable in terms of improving the strength against the load in the vertical direction acting on the engaged member .
According to the fourth aspect of the present invention, it is preferable for restricting the downward displacement of the engaged member to firmly support the child seat.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2, reference numeral 1 denotes a seat for the rear seat, and in the embodiment, it is a bench-type seat that extends long over almost the entire length of the room width. The seat 1 includes a seat cushion 2 and a seat back 3. The seat cushion 2 is attached to the vehicle body floor 4, and the seat back 3 is attached to and supported by the vehicle body floor 4 via an attachment bracket 5 so as to be swingable.
[0009]
A child seat 11 is disposed and fixed on the seat cushion 2. For this reason, in the gap between the seat cushion 2 and the seat back 3, a pair of left and right engaged members 12, 13 for mounting and fixing the child seat 11 are disposed. The engaged members 12 and 13 are fixed to the vehicle body floor 4 using a fixing member 21. That is, as will be described later, the fixing member 21 has both end portions (a pair of left and right end portions) 22 and 23 and an intermediate portion 24 connecting the both end portions 22 and 23. The engaged member 13 is fixed to one end 22 and the other end 23 is fixed. The fixing member 21 is fixed to the vehicle body floor 4 at both end portions 22 and 23 thereof, whereby the pair of left and right engaged members 12 and 13 are fixed to the vehicle body floor 4.
[0010]
Next, the pair of left and right engaged members 12 and 13 and the fixing member 21 will be described in detail with reference to FIG. First, the fixing member 21 is formed by processing a plate material having excellent rigidity, for example, a metal plate such as an iron plate, and is roughly divided into the both end portions 22 and 23 described above, and the both end portions 22 and 23. And an intermediate portion 24 for connecting the two. As shown in FIGS. 3 to 5, one end portion 22 has a base portion 22 a that is an extension portion of the intermediate portion 24, and a front protruding portion 22 b that protrudes forward from the base portion 22 a.
[0011]
The front protrusion 22b has a flat bottom 40a and a pair of left and right side walls 40b that are bent upward from the left and right ends of the bottom 40a. One engaged member 12 is fixed (integrated) to the front projecting portion 22b by welding, for example. The engaged member 12 serves as a striker, and is formed by bending a bar having excellent rigidity such as a steel bar into a substantially U shape, and includes a pair of left and right legs 12a and a pair of left and right legs 12a. And a connecting portion 12b that connects the front ends of each other. The engaged member 12 has a pair of left and right legs 12a at the bottom of the front protrusion 22b in a state where the connecting part 12b is positioned forward of the front protrusion 22b and extends in the vehicle width direction. 40a and the pair of left and right side wall portions 40b are welded and integrated with the front projecting portion 22b while being in contact with each other.
[0012]
A reinforcing support member (protruding portion) 25 that protrudes downward is integrated with the front protruding portion 22b. The support member 25 is formed in a substantially U shape opened upward by bending a metal plate such as an iron plate having excellent rigidity. That is, the support member 25 has a flat bottom portion 25a and a pair of left and right side wall portions 25b extending upward from the left and right ends of the bottom portion 25a, and the pair of left and right side wall portions 25b is a pair of left and right sides of the front protruding portion 22b. The side wall 40b is wrapped from the outside and fixed to the side wall 40b by welding or the like. The support member 25 has a side wall portion 25b that is considerably long in the vertical direction, and its bottom portion 25a is located at a position that is considerably lower than the bottom portion 40a of the front protrusion 22b. The lower surface of the support member 25 is opposed to the vehicle body floor 4.
[0013]
A mounting hole 26 is formed in the base portion 22a, and a fixing tool 27 (for example, a mounting bolt, see FIG. 1) inserted through the mounting hole 26 is attached to a mounting hole (not shown) formed in the vehicle body floor 4. The base portion 22a is fixed to the vehicle body floor 4 by being screwed together.
[0014]
Next, the other end portion 23 will be described with reference to FIGS. The other end portion 23 includes a base portion 23a that is an extended portion of the intermediate portion 24, and a front protruding portion 23b that protrudes forward from the base portion 23a. The front protrusion 23b includes a flat bottom 41a and a pair of left and right side walls 41b that are bent upward from the left and right ends of the bottom 41a. The other engaged member 13 is fixed (integrated) to the front protrusion 23b by welding, for example. The engaged member 13 serves as a striker, and is formed by bending a bar having excellent rigidity such as a steel bar into a substantially U shape, and includes a pair of left and right legs 13a and a pair of left and right legs 13a. And a connecting portion 13b for connecting the front ends of each other. Such an engaged member 13 has a pair of left and right legs 13a at the bottom of the front protrusion 23b in a state where the connecting portion 13b is positioned forward of the front protrusion 23b and extends in the vehicle width direction. 41a and the pair of left and right side wall portions 41b are welded and integrated with the front projecting portion 23b while being in contact with each other.
[0015]
A reinforcing support member (projecting portion) 35 that projects downward is integrated with the front projecting portion 23b. The support member 35 is formed in a substantially U shape opened upward by bending a metal plate such as an iron plate having excellent rigidity. That is, the support member 35 has a flat bottom portion 35a and a pair of left and right side wall portions 35b extending upward from the left and right ends of the bottom portion 35a, and the pair of left and right side wall portions 35b are a pair of left and right side walls in the front protruding portion 23b. The side wall 41b is fixed to the side wall 41b by welding or the like so as to wrap from the outside. The support member 35 has a side wall portion 35b that is considerably long in the vertical direction, and its bottom portion 35a is positioned at a position considerably lower than the bottom portion 41a of the front protruding portion 23b. The lower surface of the support member 35 is seated on the vehicle body floor 4 (the lower surface of the support member 35 faces the vehicle body floor 4).
[0016]
Extending from the base portion 23a is an extension 23c that extends outward in the vehicle width direction and extends rearward. Two extension holes 36 are formed in the extension 23 c, and a fixture 37 (for example, an attachment bolt, see FIG. 1) inserted through the attachment hole 36 is attached to the vehicle body floor 4. The extension 23c is fixed to the vehicle body floor 4 by being screwed into a hole (not shown). At this time, the fixture 37 inserted into the one mounting hole 36 fastens the mounting bracket 5 for supporting the seat back 3 to the vehicle body floor 4 together. That is, the mounting hole for the mounting bracket 5 formed in the vehicle body floor 4 is also used for mounting the other end 23 to the vehicle body floor 4.
[0017]
The extension portion 23c is connected to the base portion 23a via a vertical wall portion 45 that extends short in the vertical direction. By forming the vertical wall portion 45, the connection rigidity between the base portion 23a and the extension portion 23c is improved. Similarly, the base portion 23a and the intermediate portion 24 are connected by a vertical wall portion 46 that extends relatively long in the vertical direction, and this connection rigidity is improved. Furthermore, the base portion 22a and the intermediate portion 24 at one end portion 22 are connected by a vertical wall portion 47 that extends short in the vertical direction, and the connection rigidity is improved. Thus, the formation of the vertical wall portions 45 to 47 ensures sufficient rigidity of the fixing member 21.
[0018]
Here, the height positions of the connecting portions 12b and 13b of the pair of left and right engaged members 12 and 13 are set to be the same height position. Since both the engaged members 12 and 13 are fixed with respect to one fixing member 21, the positional relationship between them becomes extremely accurate. That is, even if the connection positions of the both end portions 22 and 23 to the vehicle body floor 4 are slightly displaced (for example, the mounting hole 26 on the one end portion 22 side is formed to be somewhat horizontally long to absorb this displacement). ), The relative positional relationship between the pair of left and right engaging portions 12 and 13 is a desired positional relationship with high accuracy.
[0019]
On the back side of the child seat 11, a pair of left and right engaging portions 52, 53 that are detachably engaged with the engaged members 12, 13 are provided. The engaging portions 52 and 53 may have a known appropriate structure. For example, the engaging portions 52 and 53 that are opened to the rear where the engaged members 12 and 13 are inserted and the engaging grooves are provided. A lock lever that opens and closes and a spring that urges the lock lever in a direction to close the engagement groove can be used. When the child seat 11 is pressed and displaced backward, the lock lever is pressed by the engaged members 12 and 13 so that the engaged members 12 and 13 enter the child into the engaging groove. A taper surface is formed on the rear end surface as possible. When the engaged members 12 and 13 enter deeply into the engaging groove, the lock lever is closed by the spring by the spring, and the engagement members 12 and 13 are prevented from coming out of the engaging groove. (Locked state).
[0020]
Although the embodiment has been described above, the present invention is not limited to this, and includes, for example, the following cases. As the engaged members 12 and 13 and the engaging portions 52 and 53, those having appropriate structures can be adopted. When the seat 1 is a bench type (for a plurality of people), a plurality of fixing members having the engaged members 12 and 13 can be installed (for example, when a pair of right and left fixing members are provided, they may be installed as a symmetrical structure). In addition, it is possible to provide three or more fixing members 21 within the range of legal fixing seat capacity. Of course, the seat 1 is not limited to the bench type, and may be an independent form for one person. The object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.
[Brief description of the drawings]
FIG. 1 is a simplified perspective view showing an embodiment of the present invention.
FIG. 2 is a side view showing an arrangement position of an engaged member in the embodiment of FIG.
FIG. 3 is a plan view showing a fixing member and an engaged member.
4 is a cross-sectional view corresponding to the line X4-X4 in FIG. 3;
5 is a view of one engaged member and one end of the fixing member when viewed from the left in FIG. 3;
6 is a cross-sectional view corresponding to line X6-X6 in FIG. 3;
7 is a view of the other engaged member and the other end of the fixing member when viewed from the left in FIG. 3;
8 is a cross-sectional view corresponding to the line X8-X8 in FIG. 3;
[Explanation of symbols]
2: Seat cushion 3: Seat back 4: Body floor 5: Seat back mounting bracket 11: Child seat 12: One engaged member 13: The other engaged member 21: Fixing member 22: One of the fixing members 23: The other end 24 of the fixing member 24: The intermediate portion 25: The support member (protruding portion with respect to one engaged member)
26: Mounting hole 27: Fixing tool 35: Support member (protruding portion with respect to the other engaged member)
36: Mounting hole 37: Fixing tool 46, 47: Vertical wall part 52, 53: Engagement part (child seat side)

Claims (4)

車体フロア上に取付けられるシートのシートクッションとシートバックとの隙間に配置される被係合部材に対して、シートクッション上に配置される子供用シートの係合部が係合される子供用シートの取付構造であって、
前記被係合部材をそれぞれ設けるようにしつつ車幅方向に離間して配置される両端部と、板面を車体フロア側に向けつつ該両端部同士を真っ直ぐに連結する板状の中間部と、を有する固定部材を有し、
前記固定部材の両端部に、車体フロアに締結されると共に前記中間部が接続されるベース部と、該ベース部から前方側に向かうに従って前記車体フロアに対して上方に離間するように延ばされる前方突出部と、がそれぞれ設けられ、
前記両ベース部に、前記車体フロアに該ベース部を締結するためのボルトを挿通させる取付孔がそれぞれ形成され、
前記両ベース部のうちの一方のベース部の取付孔が略円形に形成され、
前記両ベース部のうちの他方のベース部の取付孔が車幅方向に延設する略長円形に形成され、
前記両前方突出部が、平板状の板部と、該板部の車幅方向両側に配置された状態をもって前後方向に延びる一対の側壁部と、をそれぞれ有し、
前記各被係合部材が、車幅方向に離間しつつ前後方向に延びる一対の脚部と、該一対の脚部の前端を連結する連結部と、を有し、
前記各被係合部材の一対の脚部が、前記各前方突出部における前記一対の側壁部に対して接触された状態で該各前方突出部に溶接されている、
ことを特徴とする子供用シートの取付構造。A child seat in which an engagement portion of a child seat disposed on the seat cushion is engaged with an engaged member disposed in a gap between the seat cushion and the seat back of the seat mounted on the vehicle body floor The mounting structure of
Both end portions arranged to be spaced apart in the vehicle width direction while providing each of the engaged members, and a plate-like intermediate portion that straightly connects the both end portions with the plate surface facing the vehicle body floor side , A fixing member having
A base portion fastened to the vehicle body floor and connected to the intermediate portion at both ends of the fixing member, and a front extending so as to be separated upward from the vehicle body floor toward the front side from the base portion And a protrusion, respectively,
Mounting holes for inserting bolts for fastening the base portion to the vehicle body floor are formed in the both base portions, respectively.
The mounting hole of one of the base parts is formed in a substantially circular shape,
The mounting hole of the other base part of the two base parts is formed in a substantially oval shape extending in the vehicle width direction,
Each of the front protrusions has a flat plate portion and a pair of side wall portions extending in the front-rear direction with the plate portions being disposed on both sides in the vehicle width direction,
Each of the engaged members has a pair of leg portions that extend in the front-rear direction while being separated in the vehicle width direction, and a connecting portion that connects the front ends of the pair of leg portions,
A pair of leg portions of each engaged member is welded to each of the front protrusions in contact with the pair of side wall portions of each of the front protrusions;
A child seat mounting structure characterized by that. 請求項１において、
前記中間部と前記ベース部の取付孔との間に、上下方向に延びると共に前後方向に延びる縦壁部が介在され、
前記縦壁部に基づき、前記中間部が、前記両端部の間において前記車体フロアよりも上方に離間されている
ことを特徴とする子供用シートの取付構造。In claim 1,
Between the intermediate portion and the mounting hole of the base portion, a vertical wall portion extending in the vertical direction and extending in the front-rear direction is interposed,
The child seat mounting structure , wherein the intermediate portion is spaced above the vehicle body floor between the both end portions based on the vertical wall portion . 請求項１または請求項２において、
前記中間部の後端部が、前記ベース部の後端部よりも前方に位置し、
前記中間部の前後長が、前記ベース部の前後長よりも短くされている、
ことを特徴とする子供用シートの取付構造。In claim 1 or claim 2,
A rear end portion of the intermediate portion is located in front of a rear end portion of the base portion;
The longitudinal length of the intermediate portion is shorter than the longitudinal length of the base portion,
A child seat mounting structure characterized by that. 請求項３において、
前記両端部の前方突出部に、前記被係合部材の近傍において、前記車体フロアに向って下方に延びるようにして突出部が設けられ、
前記突出部の下部面が、前記車体フロア上面に対して略平行とされている、
ことを特徴とする子供用シートの取付構造。In claim 3 ,
Protruding portions are provided on the front protruding portions of the both end portions so as to extend downward toward the vehicle body floor in the vicinity of the engaged member,
The lower surface of the protrusion is substantially parallel to the upper surface of the vehicle body floor.
A child seat mounting structure characterized by that.
JP32067999A 1999-11-11 1999-11-11 Child seat mounting structure Expired - Lifetime JP4253958B2 (en)

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JP5286792B2 (en) * 2008-01-15 2013-09-11 トヨタ車体株式会社 Child seat anchor
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