JP4165964B2

JP4165964B2 - Child seat for bicycle

Info

Publication number: JP4165964B2
Application number: JP19206399A
Authority: JP
Inventors: 政之正瑞
Original assignee: オージーケー技研株式会社
Priority date: 1999-07-06
Filing date: 1999-07-06
Publication date: 2008-10-15
Anticipated expiration: 2019-07-06
Also published as: JP2001018871A

Description

【０００１】
【発明の属する技術分野】
本発明は、左右の立ち上がり部を備えたハンドルバー間においてハンドルステム上に載置固定される自転車用子供同乗席に関するものである。
【０００２】
【従来の技術】
一般に、この種子供同乗席には、自転車の荷籠兼用とされているものがある。例えば、実公平６−５０３０９号公報に開示されているものは、同乗席本体と、該本体の前側底面部を構成する前側底面板とからなり、該前側底面板の前端には足載せ台を固定し、前側底面板の後端部を前記本体の後側底面部前端に回動可能に枢着し、前記前側底面板と前記本体の前端部との左右中央を一本の所定長さのバンドで係止し、前記前側底面板と前記本体の対応個所にはそれぞれ係止具を設けている。そして、この子供同乗席は、自転車のハンドルバーの左右立ち上がり部により左右から挟むような形で、ハンドルステムの頂部に取り付けられ、しかも、子供を乗せる時は、同乗席の上方に子供を持ち上げている。
【０００３】
【発明が解決しようとする課題】
上記従来の技術では、荷物を積む関係上、同乗席本体の背もたれとなる背部壁が高くなっているので、この同乗席に子供を乗せたり降ろしたりするとき、子供を前記同乗席本体の上方まで持ち上げなければならず、面倒でかつ相当大なる労力を要するという問題がある。
本発明は、上述のような実情に鑑みてなされたもので、その目的とするところは、子供の乗せ降ろしを容易にかつ楽に行いうる自転車用子供同乗席を提供するにある。
【０００４】
【課題を解決するための手段】
本発明では、上記目的を達成するために、次の技術的手段を講じている。
即ち、本発明に係る自転車用子供同乗席は、ハンドルバーの左右立ち上がり部間に装着される自転車用子供同乗席において、同乗席本体の背もたれ側に、上端縁から下方中間部にかけて子供乗降用切り欠き開口部を形成し、この切り欠き開口部を閉塞部材により開閉可能にした点に特徴がある。
この場合、背もたれ側壁の一部が残っており、この部分は同乗席本体と一体であるから、強度的に十分である。なお、同乗席に子供を乗せた後、前記閉塞部材で前記切り欠き開口部を塞いでおくことができる。
【０００５】
そして、該同乗席に子供を乗せる場合、前記閉塞部材を操作して切り欠き開口部を開くことで、同乗席本体の背部上端縁が低くなり、この背部から子供を乗せることができる。従って、子供を持ち上げる高さが低くなり、子供を安心して乗せることができ、しかも、子供を乗せ易く疲労度を軽減できる。
また、本発明に係る自転車用子供同乗席は、前記閉塞部材の上下方向幅を切り欠き開口部を塞ぐのに必要最小限とすることができ、閉塞部材をコンパクトにして、軽量化を図ることができる。
【０００６】
さらに、本発明に係る子供同乗席は、前記切り欠き開口部左右両側の同乗席本体側壁に、上下方向に延びるガイド溝を左右方向貫通状に設け、前記閉塞部材の左右両側壁に装着したガイド部材を前記ガイド溝に摺動可能に嵌合し、前記閉塞部材の下部と前記本体に嵌合係止手段を設けた点に特徴がある。
この場合、前記本体側嵌合係止手段が同乗席本体背面の左右両側に後方に突出しかつ上向き開口を有する嵌合ポケットと左右の該ポケット間に形成した掛け止め部とからなり、閉塞部材の嵌合係止手段が前記嵌合ポケットに嵌入する位置決め嵌合部と前記掛け止め部に係脱自在に掛けうる係止部とからなる構成とすることができる。なお、前記ガイド部材は、前記本体側嵌合ポケットから閉塞部材の位置決め嵌合部を抜き出すことができる位置に設けるのが好ましい。
【０００７】
かかる構成によれば、前記切り欠き開口部を開ける場合、閉塞部材の前記係止部を後方に引っ張って前記掛け止め部から外し、そのままの状態を保持して閉塞部材を上方へ押すことで、前記嵌合ポケットから位置決め嵌合部を抜き出し、閉塞部材をその下部を後方に若干引いてから下方へ引くことにより、前記ガイド部材がガイド溝を案内として摺動し、閉塞部材が下降して切り欠き開口部が開かれる。
そして、前記切り欠き開口部を閉塞する場合、閉塞部材を押し上げ、ガイド部材がガイド溝の上端縁に当たって止まれば、閉塞部材の下部を同乗席本体の背もたれ側壁に押し当てたままで押し下げ、その位置決め嵌合部を前記本体の嵌合ポケットに嵌合させる。このとき、閉塞部材の前記係止部が後方に撓み、閉塞部材の下降限において該係止部がその復元弾力で前記掛け止め部に係止される。このように、係止されると、閉塞部材はその係止部を操作して押し上げない限り、自然に開く恐れは全くない。
【０００８】
さらに、本発明に係る子供同乗席は、前記閉塞部材の下部を前記本体の背もたれ側左右両側壁に枢着し、閉塞部材の上部を前記本体の背もたれ側左右両側壁に係止手段により係脱自在に掛け止めした構成とすることができる。
この場合、前記本体の左右両側壁後端上部に左右方向に貫通するピン孔を設け、閉塞部材の上端部左右両側壁に前記ピン孔に対応して、係止手段として係止ピンを左右方向に出退自在に設けて、該ピンを前記ピン孔に嵌合させることにより、閉塞部材を係止ピンを介して前記本体に係止固定するように構成することができる。
【０００９】
かかる構成とすることにより、構造が簡単でかつ閉塞部材の開閉操作が容易となり、コスト低下を図ることができる。
【００１０】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
図１乃至図７は、本発明に係る自転車用特に左右に立ち上がり部８を備えたハンドルバー６に取り付けられる子供同乗席１の第一の実施形態を示している。
この子供同乗席１は、荷籠兼用として使用できるもので、合成樹脂で成形されており、同乗席本体２と、子供の足載せ部３ａを構成する開閉自在の前部閉塞部材３と、背もたれ側上部開口部４を開閉自在に閉塞する後部閉塞部材５とで主構成されている。
【００１１】
なお、この同乗席１が取り付けられる自転車のハンドルは、図２に示しているように、ハンドルバー６がハンドルステム７に対してほぼ平行となる左右の立ち上がり部８を備え、その上端部を後方に曲げてグリップ９を套嵌してあり、前記ハンドルバー６の立ち上がり部８の間に挟むように、前記同乗席１が挿入されハンドルステム７上に載置されて、前記ハンドルステム７とハンドルバー６の立ち上がり部８とに固定される。
前記同乗席本体２は、上方が開放された略方形状の箱形で、前側壁２ａと、背もたれ側即ち後側壁２ｂと、左右側壁２ｃ，２ｄと、底壁２ｅとを備えている。
【００１２】
前記後側壁２ｂは、その上端縁から下方の中間部（本実施形態では高さの約半分の位置）まで、略全幅にわたって切り欠かれた前記上部開口部４が形成され、この開口部４が子供の乗降口とされている。従って、子供乗降口の地面からの高さ即ち、前記開口部４の端縁４ａが、前記開口部４の高さ分だけ低くなり、子供の乗降がさせ易くかつ楽になる。なお、後側壁２ｂは、その一部即ち下半分が残っているので、強度を十分に確保できる。
また、同乗席本体２の後側壁２ｂには、外側下部に左右両側に位置して上向き開口の嵌合ポケット１０が後方突出状に設けられ、左右の両嵌合ポケット１０の間に前記後部閉塞部材５の係止部嵌合凹所１１が形成されると共に、該凹所１１の下側端面が係止部掛け止め部１２とされ、前記ポケット１０と掛け止め部１２により同乗席本体２側の嵌合係止手段３３が構成されている。
【００１３】
前記同乗席本体２の前方下部には、前側壁２ａ、左右両側壁２ｃ，２ｄ及び底壁２ｅに跨がる子供の足出入開口１３が形成されている。この足出入開口１３は、前記前部閉塞部材３により開閉自在とされている。前記底壁２ｅには、その前端中央部に位置して矩形状の切欠部１４が設けられ、この切欠部１４の端縁には下方に延びる鍔１５が設けられ、鍔１５の左右対向面に左右方向の取付孔１６が形成され、該取付孔１６に前部閉塞部材３を枢着する左右方向の横軸（枢軸）１７が取付けられている。
【００１４】
また、前記同乗席本体２の左右両側壁２ｃ，２ｄは、前記足出入開口１３を形成する前端縁１３ａが前記横軸１７の軸中心を中心とする円弧面とされ、その左右両外側面に前記円弧面と平行即ち同心円上に円弧状ガイド溝１８が凹設され、該ガイド溝１８の上下両端に左右方向に貫通する前部閉塞部材３位置決め係止用のピン孔１９，２０が設けられている。
そして、前記左右両側壁２ｃ，２ｄの後端部には、上下方向に延びると共に左右方向に貫通するガイド長孔２１が設けられ、該長孔２１の下端が後側壁２ｂの前記開口部４の端縁４ａよりも所要長さだけ下方に位置せられている。この長孔２１に、前記後部閉塞部材５の上部に装着した係止案内用のガイド部材２２が回転及び移動可能に嵌装される。
【００１５】
さらに、前記同乗席本体２の底壁２ｅには、図３に示すように、前記切欠部１４の後方でかつ左右方向中央部に位置して、ハンドルステム７への取付孔２３が前後２箇所に設けられ、該孔２３を用いてハンドルステム７の頂部に設けたねじ孔（図示省略）にビス２４（図２参照）等をねじ込んで、前記同乗席本体２をハンドルステム７の頂部に着脱自在に取り付けうるようになっている。
また、前記同乗席本体２の左右両側壁２ｃ，２ｄの外側面には、前後方向中央部に位置して前後二条の上下方向に延びる位置決め突部２５が設けられ、前後の該位置決め突部２５間に形成された凹溝２６に自転車のハンドルバー６の立ち上がり部８の内側が嵌合するように、左右立ち上がり部８間に前記同乗席本体２を配置し、前記凹溝２６に設けたねじ挿通孔２７と立ち上がり部８に設けたねじ孔（図示省略）とを合致させ図外の取付ねじで固定するようになっている。
【００１６】
前記凹溝２６にハンドル立ち上がり部８を嵌合させることで、前記同乗席本体２の前後方向の位置規制がなされ、立ち上がり部８間に挟持状に前記同乗席本体２を配置させることで、前記同乗席本体２の左右方向の位置規制がなされており、ビス２４及び図外の取付ねじによる固定だけでなく、上述の前後方向の位置規制によって確実に前記同乗席本体２を自転車のハンドルに保持させることができる。
前記前部閉塞部材３は、上方及び後方が開放されるように、前側壁即ち子供足載せ部３ａと、左右側壁３ｂ，３ｃと、底壁３ｄとで構成されている。
【００１７】
該前部閉塞部材３の左右両側壁３ｂ，３ｃは、その略半分が前記同乗席本体２の左右側壁２ｃ，２ｄの前部と重なり、前記ガイド溝１８を覆っていて、閉塞状態において、前記位置決め係止用ピン孔１９に対応する位置に係止ピン装着孔２８が設けられ、該孔２８に係止ピン２９が左右方向に所要量移動可能にかつ、図外のばね等の付勢手段により常時前記同乗席本体２内方に付勢するように装着されている。即ち、係止ピン２９の左右方向移動量は、前記同乗席本体２の円弧状ガイド溝１８から前記係止用ピン孔１９，２０に嵌まって係止状態とし得ると共に、該ピン孔１９，２０から抜き出してガイド溝１８に嵌め入れることができる寸法とされている。
【００１８】
また、前記前部閉塞部材３の底壁３ｄは、その後端中央部に位置して、前記同乗席本体２の切欠部１４に隙間をもって嵌まる矩形状の突出部３０が形成され、該突出部３０の後端部には左右方向全幅にわたって下方に膨出する取付部３１が設けられ、この取付部３１には左右方向に貫通する軸孔３２が設けられており、該軸孔３２に前記横軸１７が挿通されて、前部閉塞部材３が前記同乗席本体２に対して上下方向に回動可能となっている。
なお、前部閉塞部材３は、図４に示すように、全開状態において係止ピン２９が前記ピン孔２０に嵌入し、その前側壁３ａが子供の足載せ部として適正な傾斜になるようにしてある。
【００１９】
前記後部閉塞部材５は、図５に示しているように、背もたれの一部となる背面壁５ａと、前記同乗席本体２の左右側壁２ｃ，２ｄの後部外側に重なる左右側壁５ｂ，５ｃを備え、背面壁５ａの下部に前記同乗席本体２への嵌合係止手段３３が設けられており、左右側壁５ｂ，５ｃの上部に前記同乗席本体２のガイド長孔２１に嵌合するガイド部材２２が装着されている。
前記嵌合係止手段３３は、図５乃至図７にも示しているように、前記背面壁５ａの下部に設けた左右の位置決め嵌合部３４と、該位置決め嵌合部３４の間に設けた係止部３５とにより構成されている。前記位置決め嵌合部３４は、同乗席本体２の嵌合ポケット１０に出退自在に嵌合する大きさで、前記背面壁５ａの外面より嵌合ポケット１０の肉厚分だけ内側即ち前方に入った外壁３４ａと、この外壁３４ａの下端から内側に突出する下壁３４ｂと、外壁３４ａと下壁３４ｂを繋ぐ３本のリブ３４ｃとで形成されており、射出成形時における引けによる欠陥を防止し、品質の確保を図っている（図６参照）。
【００２０】
前記係止部３５は、図４乃至図７等からも明らかなように、前記同乗席本体２の掛け止め部１２に引っ掛け得る係止片３５ａを備えたフック状を呈し、前記掛け止め部１２に対して係脱可能なように前後方向への可撓性が付与されている。なお、前記係止片３５ａの下側は傾斜面３５ｂとされ、係止操作時に位置決め嵌合部３４を前記嵌合ポケット１０に挿入する際、傾斜面３５ｂが前記同乗席本体２の係止部嵌合凹所１１に当たって係止部３５が後方に若干撓ませられ、嵌合ポケット１０に位置決め嵌合部３４が嵌合し終わると同時に、前記係止片３５ａが嵌合凹所１１の下端から離れて、係止部３５がその弾力（復元力）で前方に復元し、前記同乗席本体２の掛け止め部１２に係止片３５ａが自動的に係止されるようになっている。
【００２１】
前記後部閉塞部材５の左右両側壁５ｂ，５ｃ上部には、前記長孔２１に対応する位置でかつ、該後部閉塞部材５を上昇させて前記位置決め嵌合部３４の下端が、嵌合ポケット１０から完全に抜け出した状態において、長孔２１の上端部に対向する位置にガイド部材２２の取付孔３６が左右方向貫通状に設けられている。
ガイド部材２２は、図５に示されているように、前記取付孔３６に回転可能に嵌合されかつ、前記ガイド長孔２１に回転及び摺動可能に嵌合される鍔付ガイドローラ３７と、ビスからなるローラ軸３８と、ワッシャー３９及びナット４０とにより構成されている。
【００２２】
なお、前記長孔２１の下端は、前記後部閉塞部材５が前記開口部４を全開とした時即ち、前記ガイド部材２２の下降限において、後部閉塞部材５の上端縁を図４、図７（Ｃ）に示すように開口部４の開口端縁４ａと面一か又は若干下方に位置させることができる程度に、下方に延びている。
上記実施形態において、子供同乗席１は、図２に示しているように、自転車のハンドル特にＵ字状に湾曲されて左右に立ち上がり部８を備えたハンドルバー６に取り付けられる。そして、図１乃至図３は、前・後部閉塞部材３，５を閉じて自転車用荷籠として使用する状態を示している。この状態では、前部閉塞部材３の上方後部が係止ピン２９により係止されているので、このピン２９を操作しない限り前部閉塞部材３は開かないし、また、後部閉塞部材５は、その下部が嵌合係止手段３３により、前記同乗席本体２の嵌合係止手段３３に係止されると共に、その上部がガイド部材２２により、前記同乗席本体２の長孔２１に嵌入係合されているから、後方に倒れたり下方に落ちることもなく、荷籠としての機能を発揮する。
【００２３】
図１乃至図３に示す状態から図４に示す子供同乗席１本来の使用状態にする場合、まず、左右の前記係止ピン２９をそれぞれ外方に引っ張って前記ピン孔１９から脱出させると共に、該ピン２９を前方下方へ押すことで、前部閉塞部材３が横軸１７を中心として下方に回動し、前記ピン２９がガイド溝１８の下端に達すると、図外の付勢手段により位置決め係止用ピン孔２０に嵌入係合して、図４に示すように、前部閉塞部材３が傾倒状態となる。即ち、前部閉塞部材３の前側壁３ａ（足載せ部）の内面上に子供が足を載せうる状態となる。
【００２４】
図４に示す状態では、前記係止ピン２９がピン孔２０に嵌入係合しているので、前部閉塞部材３が下方へ自然に倒れる恐れはなく、また、上方に動くこともなく、安定良く保持され、子供を乗せる時、子供の足をスムーズに足載せ部である前側壁３ａ内面に載せることができる。
他方、後部閉塞部材５を開くときは、図７（ａ）に示すように、その係止部３５を図中矢印イで示す後方に引っ張って前記同乗席本体２の掛け止め部１２から係止片３５ａを外し、そのままの状態で後部閉塞部材５を図中矢印ロで示す上方に押して、図７（ｂ）に示すように、嵌合ポケット１０から位置決め嵌合部３４を脱出させた後、前記ガイド部材２２を中心として後部閉塞部材５の下部側を後方に若干回動し、図中矢印ロで示す下方に引き下げることで、図４，図７（ｃ）に示す全開状態とすることができる。
【００２５】
このようにして、前記開口部４が全開状態になると、この開口部４から子供を同乗席本体２内に乗せることで、子供を持ち上げる高さが開口部４の高さ分だけ低くなるため、子供を容易にかつ安楽に乗せることができる。
そして、子供を乗せた後は、前記後部閉塞部材５を開いたままでもよいが、該部材５を押し上げて上限に達したところで（図７（ｂ）参照）、前記部材５の下部を前方へ押した状態のままで、さらに下方に押し下げることにより、位置決め嵌合部３４が前記嵌合ポケット１０に嵌合すると共に、係止部３５の係止片３５ａが掛け止め部１２に自動的に係止され、図１乃至図３に示す閉塞状態にすることができる。このようにすると、後部閉塞部材５を背もたれとして使用できる。
【００２６】
なお、子供を同乗席１から降ろすときは、後部閉塞部材５を前述のようにして開き、前記開口部４を全開状態にすればよい。
また、子供を同乗席１に乗せないときは、前部閉塞部材３の係止ピン２９をそれぞれ外方に引いて前記ピン孔２０から脱出させ、該前部閉塞部材３を押し上げて上限に位置させると、前記係止ピン２９が図外の付勢手段により上部のピン孔１９に嵌入係合して、図１乃至図３に示す閉塞状態となり、前述のように自転車用荷籠として使用可能となる。
【００２７】
図８は子供同乗席１の比較例の要部を示し、第一実施形態と異なるところは、同乗席本体２はその前側壁２ａ及び左右両側壁２ｃ，２ｄの前端部の全部がない大きい足出入開口１３とされ、前部閉塞部材３の前側壁３ａが同乗席本体２の前壁を兼ねている点、後部閉塞部材５の前記同乗席本体２への係止手段が下部の枢着部材４１と上部の係止ピン４２とにより構成されている点であり、後部閉塞部材５の大きさ特に上下方向幅が前記開口部４を閉塞するのに必要最小限の寸法とされている。
【００２８】
なお、前部閉塞部材３の上端部と同乗席本体２上部との係止固定は、該部材３に設けたピン孔（図示省略）に係止ピン２９を嵌脱することにより行い、その全開位置保持を前記同乗席本体２と前部閉塞部材３の間に設けたリンク機構４３により行うように構成されている。
また、前記後部閉塞部材５の上部係止ピン４２は、前記係止ピン２９と同様に、前記同乗席本体２の左右両側壁２ｃ，２ｄに設けたピン孔（図示省略）に嵌脱可能に装着されており、図外の付勢手段により常時対向内方に付勢されている。
【００２９】
このように、比較例では、構造が非常に簡単になるが、第一実施形態と同等の効果を期待することができる。なお、第一実施形態と共通する構成については、図１乃至図３と同じ符号を付し、重複説明を省略する。
比較例によれば、上述のように、構造を簡単にして成形金型構造も簡単にできるので、後部閉塞部材５を必要最小限としているので、軽量化及びコスト低下を図ることができる。なお、前記後部閉塞部材５にも、前部閉塞部材３と同様にリンク機構を設けて、全開位置保持をするように構成できる。
【００３０】
本発明の上記実施形態では、同乗席本体２及び前・後部閉塞部材３，５を板状としているが、これを網又は格子或いは多孔板状とすることができ、さらに、合成樹脂製に限らず金属製とすることができ、また、前・後部閉塞部材３，５を左右側壁のない構造とすることができる。
本発明は、上記実施形態に限定されるものではなく、例えば、同乗席本体２の前部に子供用ハンドルを設けることができ、前記前・後部閉塞部材３，５の前記同乗席本体２への取付手段及び係止並びに全開姿勢保持手段等を適宜設計変更かのうである。
【００３１】
【発明の効果】
以上詳述したとおり、本発明によれば、同乗席本体の背もたれ側に子供乗降用切り欠き開口部を形成し、該開口部を閉塞部材により開閉可能しているので、子供の乗せ降ろしに際しては閉塞部材を開くことで、子供を容易にかつ楽にしかも安全に乗せ降ろしすることができ、荷籠としての機能も確保できる。また、前記同乗席本体の背もたれ側は、その一部を残してあるので、十分な強度を確保することができる。
【図面の簡単な説明】
【図１】本発明に係る子供同乗席の第一の実施形態を示す中央縦断側面図である。
【図２】同実施形態の側面図である。
【図３】図２の平面図である。
【図４】同実施形態における使用状態即ち閉塞部材の全開状態を示す中央縦断面図である。
【図５】同実施形態における後部閉塞部材を分解した状態を示す斜視図である。
【図６】同実施形態における後部閉塞部材の一部省略内面斜視図である。
【図７】（ａ），（ｂ），（ｃ）は、同実施形態における後部閉塞部材の開操作説明図である。
【図８】子供同乗席の比較例の要部を示す側面図である。
【符号の説明】
１子供同乗席
２同乗席本体
２ｂ後側壁（背もたれ側壁）
２ｃ左側壁
２ｄ右側壁
４開口部
５閉塞部材（後部）
５ｂ左側壁
５ｃ右側壁
６ハンドルバー
７ハンドルステム
１０嵌合ポケット
１２掛け止め部
２１ガイド長孔
２２ガイド部材
３３嵌合係止手段
３４位置決め嵌合部
３５係止部
４１枢着手段
４２係止ピン（係止手段）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bicycle child passenger seat that is placed and fixed on a handle stem between handle bars having left and right rising portions.
[0002]
[Prior art]
In general, there are some passenger seats of this kind that are also used as bicycle luggage. For example, what is disclosed in Japanese Utility Model Publication No. 6-50309 is composed of a passenger main body and a front bottom plate constituting a front bottom surface of the main body, and a footrest is provided at the front end of the front bottom plate. The rear end of the front bottom plate is pivotally attached to the front end of the rear bottom surface of the main body, and the center of the left and right of the front bottom plate and the front end of the main body has a predetermined length. Locking is provided with a band, and locking members are provided at corresponding portions of the front bottom plate and the main body, respectively. And this child passenger seat is attached to the top of the handle stem so that it is sandwiched from the left and right by the left and right rising parts of the handlebar of the bicycle, and when putting a child, lift the child above the passenger seat. Yes.
[0003]
[Problems to be solved by the invention]
In the above conventional technology, the back wall that serves as the backrest of the passenger seat body is raised due to the loading of luggage, so when placing a child on the passenger seat or lowering the child, the child is moved to above the passenger seat body. There is a problem that it has to be lifted, and is troublesome and requires a great deal of labor.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bicycle children's seat that can easily and easily put on and off a child.
[0004]
[Means for Solving the Problems]
In the present invention, in order to achieve the above object, the following technical means are taken.
That is, the bicycle children's seat according to the present invention is a bicycle children's seat that is mounted between the left and right rising portions of the handlebar, and the child passenger's seat is placed on the backrest side of the passenger seat body from the upper edge to the lower middle portion. A feature is that a notch opening is formed, and the notch opening can be opened and closed by a closing member.
In this case, a part of the backrest side wall remains, and this part is integral with the passenger seat body, so that the strength is sufficient. In addition, after putting a child on the passenger seat, the notch opening can be closed with the closing member.
[0005]
When a child is put on the passenger seat, the upper edge of the back of the passenger seat body is lowered by operating the closing member to open the notch opening, and the child can be put on the back. Therefore, the height for lifting the child is reduced, so that the child can be put in peace, and the child can be easily put on and the fatigue level can be reduced.
Moreover, bicycle children's passenger seat according to the present invention, the can required minimum and to Rukoto to block the vertical width cut-outs opening of the closing member, the closing member in the compact, reduced in weight be able to.
[0006]
Furthermore, the child passenger seat according to the present invention is provided with guide grooves extending in the vertical direction on the side walls of the passenger seat main body on the left and right sides of the cutout opening, and installed in the left and right side walls of the closure member. A member is slidably fitted in the guide groove, and a fitting locking means is provided on the lower part of the closing member and the main body.
In this case, the body-side fitting and locking means includes a fitting pocket that protrudes rearward on the left and right sides of the back of the passenger seat body and has an upward opening, and a latching portion formed between the left and right pockets. The fitting locking means may be composed of a positioning fitting portion that fits into the fitting pocket and a locking portion that can be detachably hooked on the latching portion. The guide member is preferably provided at a position where the positioning fitting portion of the closing member can be extracted from the body-side fitting pocket.
[0007]
According to such a configuration, when opening the notch opening, by pulling the locking portion of the closing member backward to remove it from the latching portion, holding the state as it is and pushing the closing member upward, The positioning fitting part is extracted from the fitting pocket, and the closing member is slightly pulled rearward and then pulled downward, so that the guide member slides with the guide groove as a guide, and the closing member descends and cuts. A notch opening is opened.
When the notch opening is closed, the closing member is pushed up, and when the guide member hits the upper edge of the guide groove and stops, the lower part of the closing member is pressed down against the back side wall of the passenger seat body, and the positioning fit The joint portion is fitted into the fitting pocket of the main body. At this time, the locking portion of the closing member bends backward, and the locking portion is locked to the latching portion by its restoring elasticity at the lower limit of the closing member. In this way, when locked, the closing member does not have any fear of opening naturally unless the locking portion is operated and pushed up.
[0008]
Further, in the child passenger seat according to the present invention, the lower part of the closing member is pivotally attached to the left and right side walls on the back side of the main body, and the upper part of the closing member is engaged with and disengaged from the left and right side walls on the back side of the main body by the locking means. It can be configured to be freely latched.
In this case, a pin hole penetrating in the left-right direction is provided in the upper part of the rear end of the left and right side walls of the main body, and a locking pin as a locking means is provided in the left-right direction corresponding to the pin hole on the left and right side walls of the upper end portion of the closing member. The closure member can be locked and fixed to the main body via a locking pin by providing the pin in the pin hole and fitting the pin into the pin hole.
[0009]
By adopting such a configuration, the structure is simple, the opening / closing operation of the closing member is facilitated, and the cost can be reduced.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 thru | or FIG. 7 has shown 1st embodiment of the child passenger seat 1 attached to the handlebar 6 provided with the standing part 8 in the right and left especially for the bicycle which concerns on this invention.
The child passenger seat 1 can be used as a cargo bag, and is molded of synthetic resin. The passenger seat body 2, a front closure member 3 that can be opened and closed that constitutes a footrest portion 3 a of the child, and a backrest. It mainly comprises a rear closing member 5 that closes the side upper opening 4 so as to be freely opened and closed.
[0011]
As shown in FIG. 2, the bicycle handle to which the passenger seat 1 is attached includes left and right rising portions 8 in which the handle bar 6 is substantially parallel to the handle stem 7, and the upper end portion is located at the rear. The passenger seat 1 is inserted and placed on the handle stem 7 so as to be sandwiched between the rising portions 8 of the handle bar 6, and the handle stem 7 and handle It is fixed to the rising section 8 of bar 6.
The passenger seat body 2 has a substantially rectangular box shape with an open top, and includes a front side wall 2a, a backrest side, that is, a rear side wall 2b, left and right side walls 2c and 2d, and a bottom wall 2e.
[0012]
The rear side wall 2b is formed with the upper opening 4 cut out over substantially the entire width from the upper end edge to the lower middle portion (position of about half the height in the present embodiment). It is said to be a gate for children. Therefore, the height of the child entrance / exit from the ground, that is, the end edge 4a of the opening 4 is lowered by the height of the opening 4, making it easy and easy for children to get on and off. In addition, since the rear side wall 2b has a part, that is, the lower half, the strength can be sufficiently secured.
Further, the rear side wall 2b of the passenger seat body 2 is provided with fitting pockets 10 that are located on the left and right sides of the passenger seat body 2 and that are open on the left and right sides so as to protrude rearward. A latching portion fitting recess 11 of the member 5 is formed, and a lower end surface of the recess 11 is a latching portion latching portion 12, and the pocket 10 and the latching portion 12 make the passenger seat body 2 side. The fitting locking means 33 is configured.
[0013]
In the lower front part of the passenger seat body 2, a foot entrance / exit 13 for a child straddling the front side wall 2a, the left and right side walls 2c, 2d and the bottom wall 2e is formed. This foot access opening 13 can be opened and closed by the front closing member 3. The bottom wall 2e is provided with a rectangular cutout 14 located in the center of the front end thereof, and a flange 15 extending downward is provided at the edge of the cutout 14 so that the left and right surfaces of the flange 15 are opposed to each other. An attachment hole 16 in the left-right direction is formed, and a lateral axis (pivot axis) 17 in the left-right direction for pivotally attaching the front closing member 3 is attached to the attachment hole 16.
[0014]
The left and right side walls 2c and 2d of the passenger seat body 2 have a front end edge 13a that forms the foot access opening 13 as an arc surface centered on the axis of the horizontal shaft 17, and the left and right outer side surfaces thereof. An arcuate guide groove 18 is provided in parallel with or concentrically with the arcuate surface, and front closure member 3 positioning and locking pin holes 19 and 20 penetrating in the left-right direction at both upper and lower ends of the guide groove 18 are provided. ing.
The left and right side walls 2c and 2d are provided with guide long holes 21 extending in the vertical direction and penetrating in the left and right directions at the rear end portions of the left and right side walls 2c and 2d . It is located below the edge 4a by a required length. A locking guide member 22 mounted on the upper portion of the rear closing member 5 is fitted in the long hole 21 so as to be rotatable and movable.
[0015]
Further, as shown in FIG. 3, the bottom wall 2e of the passenger seat body 2 is provided with two mounting holes 23 at the front and rear sides of the handle stem 7 that are located behind the notch 14 and in the center in the left-right direction. The screw 24 (see FIG. 2) or the like is screwed into a screw hole (not shown) provided at the top of the handle stem 7 using the hole 23, and the passenger seat body 2 is attached to and detached from the top of the handle stem 7. It can be attached freely.
Further, left and right side walls 2c of the passenger seat body 2, on the outer surface of the 2d, is provided a positioning projection 25 extending in the vertical direction of the two articles back and forth in position in the front-rear direction central portion, front and rear of the positioning protrusion 25 The passenger seat body 2 is disposed between the left and right rising parts 8 such that the inside of the rising part 8 of the handlebar 6 of the bicycle fits into the concave groove 26 formed therebetween, and a screw provided in the concave groove 26 The insertion hole 27 and a screw hole (not shown) provided in the rising portion 8 are made to coincide with each other and fixed with a mounting screw (not shown).
[0016]
By fitting the handle rising portion 8 into the concave groove 26, the position of the passenger seat body 2 in the front-rear direction is restricted, and the passenger seat body 2 is disposed in a sandwiched manner between the rising portions 8. The position of the passenger seat body 2 in the left-right direction is regulated, and the passenger seat body 2 is securely held on the bicycle handle by the above-described position restriction in the front-rear direction as well as being fixed by screws 24 and mounting screws (not shown). Can be made.
The front closing member 3 includes a front side wall, that is, a child foot rest part 3a, left and right side walls 3b and 3c, and a bottom wall 3d so that the upper part and the rear part are opened.
[0017]
Left and right side walls 3b of the front closing member 3, 3c are left and right side walls 2c of the substantially half the passenger seat body 2, a front portion of the 2d and overlap, cover the the guide groove 18, in the closed state, the A locking pin mounting hole 28 is provided at a position corresponding to the positioning locking pin hole 19, and the locking pin 29 can be moved in the left-right direction by a required amount, and a biasing means such as a spring (not shown). So as to always urge the passenger seat body 2 inward. That is, the amount of movement of the locking pin 29 in the left-right direction can be fitted into the locking pin holes 19 and 20 from the arcuate guide groove 18 of the passenger seat body 2 to be locked, and the pin holes 19, is sized to as possible out to fitted into the guide groove 18 is extracted from the 20.
[0018]
Further, the bottom wall 3d of the front portion closing member 3 is located in its rear central portion, said passenger seat notch 14 full rectangular protrusions 30 fit with a clearance of the main body 2 is formed, projecting portion 30 is provided with a mounting portion 31 that bulges downward across the entire width in the left-right direction. The mounting portion 31 is provided with a shaft hole 32 penetrating in the left-right direction. a shaft 17 is inserted, the front portion closing member 3 has a rotatable up and down relative to the passenger seat body 2.
As shown in FIG. 4, in the front closing member 3, the locking pin 29 is fitted into the pin hole 20 in the fully opened state, and the front side wall 3a is inclined appropriately as a child footrest. It is.
[0019]
As shown in FIG. 5, the rear closing member 5 includes a rear wall 5 a that is a part of a backrest, and left and right side walls 5 b and 5 c that overlap the rear outer sides of the left and right side walls 2 c and 2 d of the passenger seat body 2. A fitting member 33 for fitting to the passenger seat body 2 is provided at the lower part of the rear wall 5a, and the guide member is fitted into the guide long hole 21 of the passenger seat body 2 at the upper part of the left and right side walls 5b, 5c. 22 is installed.
The Hamagogakaritome means 33, as also shown in FIGS. 5 to 7, a positioning fitting portion 34 of the right and left provided on the lower portion of the rear wall 5a, provided between the positioning engaging portion 34 And an engaging portion 35. The positioning fitting portion 34 is sized so as to be removably fitted into the fitting pocket 10 of the passenger seat body 2, and enters the inside of the fitting pocket 10 from the outer surface of the rear wall 5 a, ie, enters the front. The outer wall 34a, the lower wall 34b projecting inward from the lower end of the outer wall 34a, and the three ribs 34c that connect the outer wall 34a and the lower wall 34b, prevent defects due to shrinkage during injection molding. The quality is ensured (see FIG. 6).
[0020]
As is clear from FIGS. 4 to 7 and the like, the locking portion 35 has a hook shape having a locking piece 35a that can be hooked on the locking portion 12 of the passenger seat body 2, and the locking portion 12 Flexibility in the front-rear direction is provided so that it can be engaged and disengaged. The lower side of the locking piece 35a is an inclined surface 35b, and when the positioning fitting portion 34 is inserted into the fitting pocket 10 during the locking operation, the inclined surface 35b is the locking portion of the passenger seat body 2. The locking portion 35 is slightly bent rearward by hitting the fitting recess 11, and at the same time as the positioning fitting portion 34 has been fitted into the fitting pocket 10, the locking piece 35 a is moved from the lower end of the fitting recess 11. The locking part 35 is restored to the front by its elasticity (restoring force), and the locking piece 35 a is automatically locked to the latching part 12 of the passenger seat body 2.
[0021]
Left and right side walls 5b of the rear closure member 5, the 5c upper, said and a position corresponding to the long hole 21, the lower end of the positioning fitting portion 34 is raised the rear closure member 5, the fitting pocket 10 The mounting hole 36 of the guide member 22 is provided in the left-right direction penetrating in the position which opposes the upper end part of the long hole 21 in the state which pulled out completely from.
As shown in FIG. 5, the guide member 22 is fitted to the mounting hole 36 so as to be rotatable, and is provided with a flanged guide roller 37 fitted to the guide long hole 21 so as to be rotatable and slidable. , A roller shaft 38 made of screws, a washer 39 and a nut 40.
[0022]
Incidentally, the lower end of the long hole 21, when the the rear closure member 5 has been fully opened the aperture 4 that is, in lowering limit of the guide member 22, figure upper edge of the rear closure member 5 4, 7 ( As shown in C), it extends downward to such an extent that it can be positioned flush with or slightly below the opening edge 4a of the opening 4.
In the above embodiment, as shown in FIG. 2, the child passenger seat 1 is attached to a handlebar 6 that is bent into a handle of a bicycle, particularly a U-shape, and has rising portions 8 on the left and right. 1 to 3 show a state in which the front and rear closing members 3 and 5 are closed and used as a bicycle luggage. In this state, since the upper rear part of the front blocking member 3 is locked by the locking pin 29, the front blocking member 3 does not open unless the pin 29 is operated, and the rear blocking member 5 The lower portion is locked to the fitting locking means 33 of the passenger seat body 2 by the fitting locking means 33 , and the upper portion is fitted into the elongated hole 21 of the passenger seat body 2 by the guide member 22. Therefore, it can function as a cargo box without falling backward or falling downward.
[0023]
When the child passenger seat 1 shown in FIG. 4 is used from the state shown in FIG. 1 to FIG. 3, first, the left and right locking pins 29 are respectively pulled outward to escape from the pin holes 19. By pushing the pin 29 forward and downward, the front closing member 3 rotates downward about the horizontal shaft 17, and when the pin 29 reaches the lower end of the guide groove 18, positioning is performed by a biasing means (not shown). As shown in FIG. 4, the front closing member 3 is tilted by being fitted into and engaged with the locking pin hole 20. In other words, the child can place his / her feet on the inner surface of the front side wall 3a (foot placing portion) of the front closing member 3.
[0024]
In the state shown in FIG. 4, since the locking pin 29 is fitted and engaged with the pin hole 20, there is no risk that the front closing member 3 will naturally fall down, and it does not move upward and is stable. When the child is put on well, the child's foot can be smoothly placed on the inner surface of the front side wall 3a which is a footrest portion.
On the other hand, when the rear closing member 5 is opened, as shown in FIG. 7A, the locking portion 35 is pulled backward from the latching portion 12 of the passenger seat body 2 as shown by the arrow a in the figure. After removing the piece 35a and pushing the rear closing member 5 upward as indicated by an arrow B in the figure, as shown in FIG. 7B, the positioning fitting part 34 is escaped from the fitting pocket 10, With the guide member 22 as a center, the lower side of the rear closing member 5 is slightly rotated backward and pulled downwards as indicated by an arrow B in the figure, so that the fully opened state shown in FIG. 4 and FIG. it can.
[0025]
In this way, when the opening 4 is fully opened, the height for lifting the child is reduced by the height of the opening 4 by placing the child in the passenger seat body 2 from the opening 4. Children can be placed easily and comfortably.
After the child is put on, the rear closing member 5 may remain open, but when the member 5 is pushed up to reach the upper limit (see FIG. 7B), the lower part of the member 5 is moved forward. By pushing down further in the pressed state, the positioning fitting portion 34 is fitted into the fitting pocket 10, and the locking piece 35 a of the locking portion 35 is automatically engaged with the latching portion 12. The closed state shown in FIGS. 1 to 3 can be obtained. In this way, the rear closing member 5 can be used as a backrest.
[0026]
When the child is lowered from the passenger seat 1, the rear closing member 5 may be opened as described above and the opening 4 may be fully opened.
Also, when not carrying a child passenger seat 1, the locking pin 29 of the front closure member 3 respectively by pulling outward to escape from the pin holes 20, located in the upper pushing up the front closing member 3 Then, the locking pin 29 is fitted into and engaged with the upper pin hole 19 by an urging means (not shown) to be in the closed state shown in FIGS. 1 to 3, and can be used as a bicycle luggage as described above. It becomes.
[0027]
8 shows a main portion of a comparative example of the child passenger seat 1, is different from the first embodiment, passenger seat body 2 is its front wall 2a and the left and right side walls 2c, large without all of the front end of 2d The foot opening / closing opening 13 is used, and the front side wall 3a of the front closing member 3 also serves as the front wall of the passenger seat body 2, and the locking means for the rear closing member 5 to the passenger seat body 2 is pivotally attached to the lower portion. This is a point constituted by the member 41 and the upper locking pin 42, and the size of the rear closing member 5, particularly the vertical width, is the minimum size necessary for closing the opening 4.
[0028]
The upper end of the front closing member 3 and the upper portion of the passenger seat body 2 are locked and fixed by engaging and disengaging the locking pin 29 in a pin hole (not shown) provided in the member 3 and fully opening it. The position is maintained by a link mechanism 43 provided between the passenger seat body 2 and the front closing member 3.
Further, like the locking pin 29, the upper locking pin 42 of the rear closing member 5 can be fitted into and removed from pin holes (not shown) provided in the left and right side walls 2c and 2d of the passenger seat body 2. It is mounted and is always urged inwardly by an urging means (not shown).
[0029]
Thus, in the comparative example , the structure becomes very simple, but the same effect as that of the first embodiment can be expected. In addition, about the structure which is common in 1st embodiment, the code | symbol same as FIG. 1 thru | or FIG. 3 is attached | subjected, and duplication description is abbreviate | omitted.
According to the comparative example , as described above, since the structure can be simplified and the molding die structure can be simplified, the rear closing member 5 is minimized, so that weight reduction and cost reduction can be achieved. The rear closing member 5 can also be configured to be provided with a link mechanism in the same manner as the front closing member 3 so as to hold the fully open position.
[0030]
In you facilities embodiment on the present invention, although the passenger seat body 2 and the front and rear closure members 3,5 and the plate, it is possible to this net or grating or perforated plate, further, synthetic resin The front and rear closing members 3 and 5 can have a structure without left and right side walls.
The present invention is not limited to the above-described embodiment. For example, a child handle can be provided at the front portion of the passenger seat body 2, and the front / rear closing members 3, 5 can be connected to the passenger seat body 2. The mounting means, the locking, the fully open posture holding means, etc. are appropriately changed in design.
[0031]
【The invention's effect】
As described in detail above, according to the present invention, the notch opening for getting on and off the child is formed on the backrest side of the passenger seat body, and the opening can be opened and closed by the closing member. By opening the closing member, the child can be easily and easily put on and off safely, and the function as a cargo can be secured. In addition, since a part of the backrest side of the passenger seat body is left, sufficient strength can be ensured.
[Brief description of the drawings]
FIG. 1 is a central longitudinal sectional side view showing a first embodiment of a child passenger seat according to the present invention.
FIG. 2 is a side view of the same embodiment.
FIG. 3 is a plan view of FIG. 2;
FIG. 4 is a central longitudinal sectional view showing a use state, that is, a fully opened state of the closing member in the embodiment.
FIG. 5 is a perspective view showing a state in which a rear closing member in the same embodiment is disassembled.
FIG. 6 is a partially omitted internal perspective view of a rear closing member in the same embodiment.
FIGS. 7A, 7B, and 7C are explanatory views of the opening operation of the rear closing member in the embodiment.
8 is a side view showing a main part of a comparative example of the child passenger seat.
[Explanation of symbols]
1 Passenger seat 2 Passenger seat body 2b Rear side wall (backrest side wall)
2c Left side wall 2d Right side wall 4 Opening part 5 Closing member (rear part)
5b left side wall 5c the right side wall 6 handlebar 7 handle stem 10 fitting pocket 12 hooking stopper part 21 the guide slot 22 guide member 33 fitted locking means 34 positioning fitting portion 35 engaging portion 41 pivot means 42 locking pin (Locking means)

Claims

In a bicycle children's seat that is installed between the left and right rising parts of the handlebar,
On the back side of the passenger seat body, a notch opening for getting on and off the child is formed from the upper edge to the lower middle part, and this notch opening can be opened and closed by a closing member ,
Guide grooves extending in the vertical direction are provided on the side walls of the passenger seat body on the left and right sides of the notch opening so as to penetrate in the left-right direction, and the guide members mounted on the left and right side walls of the closing member are slidably fitted into the guide grooves. In addition, there is provided a children's seat for a bicycle , wherein fitting and locking means for fitting and locking to the main body in a state where the closing member is closed is provided .

The bicycle passenger seat according to claim 1, wherein the vertical width of the closing member is cut out to a minimum necessary for closing the opening.

The body-side fitting locking means comprises a fitting pocket that protrudes rearward on the left and right sides of the passenger seat back and has an upward opening, and a latching portion formed between the left and right pockets. The bicycle child passenger seat according to claim 1 or 2, wherein the stopping means includes a positioning fitting portion that fits into the fitting pocket and a locking portion that can be detachably engaged with the latching portion. .

The bicycle passenger seat according to claim 1 or 2 , wherein the guide member is provided at a position where a positioning fitting portion of the closing member can be extracted from the body-side fitting pocket .