JP3806251B2 - Carriage for transportation - Google Patents

Description

【０００１】
【発明の属する技術分野】
本発明は、コンテナのような荷物を上に載せて運搬するのに用いる運搬用台車に関するものである。
【０００２】
【従来の技術】
従来のこの種の運搬用台車としては実開平６−１６１４０号公報や特開平７−２８５４４３号公報に開示されるものがある。この運搬用台車は矩形状の台盤の下面側の４隅部に走行用のキャスターを装着して形成されており、台盤の上にコンテナのような荷物を載せ、キャスターを転動させることにより運搬できるようになっている。また運搬用台車を連結して運搬することもあるため台盤に略逆Ｌ字状の連結棒を回転自在に装着してある。つまり、図２７に示すように台盤１の一端に上下に貫通する挿通孔２を穿孔してあり、略逆Ｌ字状の連結棒３の縦棒部３ａを挿通孔２に回転自在に挿通してあり、連結棒３の横棒部３ｂの先端に下方に突出する連結係止部４を突設してあり、台盤１の他端の連結孔に連結係止部４を挿入係止し得るようにしてある。
【０００３】
【発明が解決しようとする課題】
ところで、上記のような運搬用台車はトラックの荷台を載せて輸送したりされるが、複数の運搬用台車をトラックの荷台に並べて配置したとき、隣合う運搬用台車同士を位置決めすることができず、運搬用台車が横ずれするという問題がある。
【０００４】
また運搬用台車を連結棒３で連結して使用することがあり、このとき連結棒３の縦棒部３ａを挿通孔２に対して図２７（ａ）（ｂ）のように上下にスライドさせて連結棒３全体を上下させ、連結係止部４を連結孔に対して挿脱操作するようになっているが、連結棒３全体を上下方向に平行移動して挿脱の操作をしなければならなく、連結棒３で連結したり、連結棒３の連結を外したりする操作がしにくいという問題があった。
【０００５】
本発明は叙述の点に鑑みてなされたものであって、複数の運搬用台車を並べたとき隣合う運搬用台車を位置決めして横ずれを防止することを課題とし、また複数の運搬用台車を連結棒で連結したり連結を外したりする操作もスムーズにすることを課題とする。
【０００６】
【課題を解決するための手段】
上記課題を解決するため本発明の運搬用台車Ａは、矩形状の台盤１の下面側の４隅部に走行用のキャスター５を装着し、台盤１の一端に位置決め凹部６を凹設すると共に台盤１の他端に上記位置決め凹部６に嵌合し得る位置決め突部７となるハンドル支持部１１を突設し、ハンドル支持部１１に上端を開口せる差し込み孔１２を設け、台盤１を移動させるとき手で持つハンドル１３の下端部を差し込み孔１２に挿脱自在に差し込み支持し得るようにし、台盤１の一端に上下に貫通するように設けた挿通孔２に略逆Ｌ字状の連結棒３の縦棒部３ａを回転自在に挿通し、挿通孔２内の上部における台盤１の内方向に上遊動用凹所９ａを設けると共に挿通孔２内の下部の台盤１の外方向に下遊動用凹所９ｂを設けて連結棒３の縦棒部３ａを前後方向に遊動自在とし、上記略逆Ｌ字状の連結棒３の横棒部３ｂの先端から下方に突設した連結係止部４を挿入し得る連結孔８を台盤１の他端に設け、連結棒３の横棒部３ｂを台盤１の一端の端部と略平行となるように向けた連結棒３の収納位置で連結棒３の先端部分を収納し得る連結棒収納凹所１０を台盤１の一端側に開口するように設けて成ることを特徴とする。複数の運搬用台車Ａを隣合う運搬用台車Ａの台盤１の端縁同士が当たるように並べたとき、隣合う運搬用台車Ａの間で位置決め凹部６と位置決め突部７とが嵌合し、運搬用台車Ａが横ずれするのを防止できる。また運搬用台車Ａを複数並べたとき運搬用台車Ａが横ずれしないように位置決めする位置決め突部７と、運搬用台車Ａを移動させるとき手で持つハンドル１３を支持するハンドル支持部１１を同じ部分で兼用することができる。またハンドル１３の下端部の差し込み部をハンドル支持部１１の差し込み孔１２に差し込むだけでハンドル１３を台盤１の端部に簡単にセットでき、ハンドル１３を手で持って運搬用台車Ａを容易に移動することができる。また複数の運搬用台車Ａを連結して移動するとき、連結棒３の連結係止部４を連結孔８に挿入係止し、また複数の運搬用台車Ａの連結を外すとき、連結係止部４を連結孔８から抜くが、このとき、連結棒３の縦棒部３ａが挿通孔２内の上部に設けた上遊動用凹所９ａと下部に設けた下遊動用凹所９ｂで遊動できるため連結棒３の横棒部３ｂを上下に揺動させることができ、横棒部３ｂを上下に揺動させるだけで連結係止部４を連結孔８に挿入係止したり、連結係止部４を連結孔８から抜いたりでき、連結棒３の連結操作や連結を外す操作が容易にできる。また、連結しない場合は、連結棒３の横棒部３ｂを台盤１の前端縁と平行になる向きに向けた状態で横棒部３ｂの先端部を連結棒収納凹部１０に収納することができる。
【０００７】
【発明の実施の形態】
運搬用台車Ａは図１乃至図４に示すように形成されるもので、合成樹脂にて図５乃至図１１に示すように形成せる台盤１の下面側の４隅部にキャスター５を装着してある。なお、以下の説明では便宜上台盤１の長手方向の一端側を前とし、他端側を後として説明する。台盤１の前側の両側に装着されるキャスター５は自在キャスター５ａとしてあり、台盤１の後側の両側に装着されるキャスター５は固定キャスター５ｂとしてある。自在キャスター５ａでは車輪受け１５に車輪１６を回転自在に装着してあり、車輪受け１５を台座１７に周方向に回転自在に装着してある。そして自在キャスター５ａの台座１７をボルト１８とナット１９で台盤１に固定してある。固定キャスター５ｂでは車輪受け２０に車輪１６を回転自在に装着してあり、車輪受け１５をボルト１８とナット１９で台盤１に固定してある。
【０００８】
台盤１は中央に矩形状の開口部２１を上下に貫通するように設けてあり、台盤１の上面の前側及び両側の端縁には荷崩れ防止用の突縁部２２を上方に突出するように設けてある。この突縁部２２は台盤１の上面の前側の中央部及び後側には設けてない。台盤１の上面には台盤１の長手方向に長く且つ断面が円弧状の上面リブ２３を多数列設してある。台盤１の上面側の４隅部分には上記キャスター５の上と対応する位置で段積み用凹部２４を凹設してあり、運搬用台車Ａを上下に段積みしたとき上に位置する運搬用台車Ａのキャスター５が下に位置する運搬用台車の段積み用凹部２４に嵌まり込むようになっている。４つの段積み用凹部２４のうち、前側の両側に位置する前側段積み用凹部２４ａは自在キャスター５ａの嵌まり込む凹部となっており、後側の両側に位置する後側段積み用凹部２４ｂは固定キャスター５ｂの嵌まり込む凹部となっている。段積み用凹部２４の底面から台盤１の下面側まで図１３に示すように上記ボルト１８を挿通する透孔２５を穿孔してあり、透孔２５の上端には上記ナット１９が収まる凹段部２６を設けてある。また台盤１の両側で前後方向の中央には夫々持ち手用開口２７を上下に貫通するように設けてあり、台盤１の前側と後側で幅方向の中央には持ち手用開口２８を上下に貫通するように設けてある。
【０００９】
台盤１の前端の幅方向の中央部には台盤１の上面の高さより低い段部３０を設けてあり、段部３０の中央で段部３０から台盤１の下方に貫通する挿通孔２を穿孔してある。連結棒３は縦棒部３ａと横棒部３ｂとで略逆Ｌ字状に形成されており、横棒部３ｂの先端から縦棒部３ａと略平行になるように連結係止部４を突設してある。連結棒３の縦棒部３ａは挿通孔２に回転自在に挿通してあり、縦棒部３ａの下端にナットやワッシャー等のストッパー３１を装着してあって、縦棒部３ａが挿通孔２から抜けないようにしてある。挿通孔２内には図１４に示すように周方向の一部に凹部を設けることで遊動用凹所９を設けてある。この遊動用凹所９は挿通孔２内の上部で周方向の一部（後側；つまり図１４、図２４に示されるように挿通孔２内の上部における台盤１の内方向側）に設けた上遊動用凹所９ａと挿通孔２内の下部で周方向の一部（前側；つまり図１４、図２４に示されるように挿通孔２内の下部における台盤１の外方向側）に設けた下遊動用凹所９ｂとで構成されており、上遊動用凹所９ａと下遊動用凹所９ｂとを相反する方向に設けてある。これにより連結棒３の縦棒部３ａが前後方向に揺動することができ、横棒部３ｂを前方に向けて突出させたとき横棒部３ｂが上下に揺動できるようになっている。台盤１の前端には段部３０の両側の位置で夫々連結棒収納凹部１０を設けてあり、連結棒３の横棒部３ｂが台盤１の前端縁と平行になる向きに向けた状態で横棒部３ｂの先端部が連結棒収納凹部１０に収納されるようになっている。連結棒収納凹部１０は挿通孔２を中心に左右対称に設けてあり、連結棒３を左右のいずれの方向に回動しても横棒部３ｂの先端部を連結棒収納凹部１０に収納できるようになっている。連結棒収納凹部１０は前方が開口しており、連結棒収納凹部１０の上壁１０ａの下面側に下方に突出するリブ１０ｂが設けてあり、リブ１０ｂの下面側に半円状の嵌合凹部１０ｃを設けてあり、連結棒３の横棒部３ｂの先端部を連結棒収納凹部１０に収納した状態で横棒部３ｂの上部が嵌合凹部１０ｃに嵌合するようになっている。また段部３０の両側には傾斜リブ３２を設けてあり、上記横棒部３ｂを嵌合凹部１０ｃに嵌合した状態で横棒部３ｂは傾斜リブ３２に載り、嵌合凹部１０ｃと傾斜リブ３２との間に横棒部３ｂが弾性的に挟持されるようになっている。また台盤１の後端の幅方向の中央には台盤１の上面より高さが低い段部３３を設けてあり、段部３３の中央から台盤１の下面側まで貫通する連結孔８を穿孔してある。そして上記連結棒３の横棒部３ｂの先端の連結係止部４を連結孔８に挿入係止できるようになっている。
【００１０】
台盤１の前端の連結棒収納凹部１０の下方の位置には位置決め凹部６を設けてある。この位置決め凹部６は前方及び下方が開口している。台盤１の後端には後方に向けて突出するように一対のハンドル支持部１１を突設してあり、ハンドル支持部１１には上方を開口せる差し込み孔１２を設けてある。このハンドル支持部１１は位置決め突部７の機能も兼ねており、位置決め突部７が上記位置決め凹部６に嵌合し得るようになっている。上記差し込み孔１２は下方に底部を有する有底形状であるが、底部に開口孔３４を有している。差し込み孔１２の内面にはリブ３５を突設してある。差し込み孔１２にはハンドル１３の両側下端の差し込み部を挿入できるようになっており、差し込み部を差し込み孔１２に挿入することによりハンドル１３を垂直に立設できるようになっている。また台盤１の４隅の外面にはゴムのようなコーナー保護緩衝材３６を装着してある。
【００１１】
次に上記のように構成せる運搬用台車Ａの使用方法について説明する。
【００１２】
部品製造業者や食品加工業者等の製造業者では図１５に示すように台盤１の上にコンテナ等の荷物を積載した運搬用台車Ａをトラック３７の荷台３８の上に載せ、多数の運搬用台車Ａを荷台３８の上に規則正しく並べるように積載する。運搬用台車Ａを図１５の矢印ａの方向に手で押して荷台３８に積載するとき固定キャスター５ｂがある方を運転席３９側として移動させて行う。この場合、運転席３９側に向けて運搬用台車Ａを手押して積載するために固定キャスター５ｂが運搬席３９側を向いて自在キャスター５ｂが逆に向いている方が作業がしやすい。上記のように荷物と一緒に運搬用台車Ａを載せた状態でトラックに３７にて集配センター、倉庫保管センター等の流通センターに配送される。流通センターに配送されると図１６に示すように荷物と一緒に運搬用台車Ａが荷台３８から降ろされる。このとき図１６の矢印ｂのように運搬席３９と反対方向に引っ張って降ろされる。運搬用台車Ａを引っ張って降ろすとき、自在キャスター５ｂの方が手前側に位置するので引っ張って降ろす作業がしやすい。運搬用台車Ａを荷台３８から降ろした状態で、連結棒３の横棒部３ｂが突出するように回動させられ、連結係止部４が隣合う運搬用台車Ａの連結孔８に挿入係止されて複数の運搬用台車Ａが連結される。この場合、運搬用台車Ａを引っ張って降ろす方向に連結棒３があるためにそのままスムーズに連結することができる。トラック３７から降ろして連結した複数の運搬用台車Ａは図１７の矢印の方向に引っ張って出荷場に移動される。出荷場に移動された運搬用台車Ａはスーパーマーケットや小売店舗等の販売店には配送するために図１８に示すように別のトラック３７の荷台３８に載せられる。このとき連結棒３による連結が外されると共に連結棒３を回動して連結棒３が連結棒収納凹部１０に収納され、運搬用台車Ａの向きを図１８の矢印ｃのように反転し、固定キャスター５ｂ側を運転席３９側に向けて矢印ｄのように運搬用台車Ａが積載される。そしてトラック３７にて個別の店舗に配送し、各店舗で必要な荷物が載った運搬用台車Ａが降ろされる。店舗で運搬用台車Ａが降ろされると、運搬用台車Ａには図１９に示すようにハンドル１３がセットされる。ハンドル１３は両側の下端の差し込み部をハンドル支持部１１の差し込み孔１２に差し込むことでセットされる。そして店舗ではハンドル１３を手で持って手押し車のように操作して運搬される。このとき図１９（ｂ）の矢印ｅに示す進行方向側に自在キャスター５ａが位置するように押されるために段差等があっても容易に走行させて移動できる。荷物を降ろした運搬用台車Ａはハンドル１３を外し、後述するように段積みして回収される。
【００１３】
次に上記のように構成せる運搬用台車Ａを取り扱うときの特徴についてさらに説明する。
【００１４】
運搬用台車Ａの上にコンテナような荷物を載せるが、台盤１の前部及び両側に突縁部２２を設けてあるために荷物が落下しないように載せることができる。また台盤１の後側には突縁部２２がないために図２０の矢印ｆ方向に荷物４０を載せたり降ろしたりできる。またこのとき台盤１の上面に断面円弧状で長手方向に長い上面リブ２３があるために荷物も矢印ｆ方向に滑らせて容易に行うことができる。
【００１５】
またトラック３７の荷台３８の上に運搬用台車Ａを積載したとき、図２１（ａ）に示すように隣合う運搬用台車Ａの台盤１の端縁同士が当たるように並べるが、前後方向に隣り合う運搬用台車Ａの間では一方の運搬用台車Ａのハンドル支持部１１を兼ねる位置決め突部７が他方の運搬用台車Ａの位置決め凹部６に図２１（ｂ）のように嵌合する。このため前後方向に隣合う運搬用台車Ａは輸送中に横ずれするのを防止できる。
【００１６】
また荷物を降ろして空になった運搬用台車Ａは再び回収されるが、回収するとき複数の運搬用台車Ａを図２２（ａ）（ｂ）に示すように上下に段積みして回収される。複数の運搬用台車Ａを上下に段積みしたとき、上に位置する運搬用台車Ａのキャスター５が下に位置する運搬用台車Ａの段積み用凹部２４に納まるように段積みされる。このとき、キャスター５が段積み用凹部２４に納まることにより、上に重ねたキャスター５が転動して上に重ねた運搬用台車Ａが落ちることがなく、複数の運搬用台車Ａを上下に安定よく段積みできる。
【００１７】
また複数の運搬用台車Ａを連結棒３で連結して図２３の矢印ｇ方向に移動するとき、コーナーを曲がる際などに隣合う運搬用台車Ａの台盤１の角部同士が衝突するおそれがあるが、角部同士が衝突しても台盤１の角部の外面にコーナー保護緩衝材３６を装着してあるためにコーナー保護緩衝材３６で衝撃が緩衝され、衝撃を吸収できると共に騒音防止もできる。
【００１８】
また複数の運搬用台車Ａを連結するときには連結棒３の横棒部３ｂの先端の連結係止部４を連結孔８に挿入し、複数の運搬用台車Ａの連結を外すときに連結棒３の横棒部３ｂの先端の連結係止部４を連結孔８から抜くが、この操作が従来のように連結棒３全体を上下させるような操作をしなくてもできる。つまり、挿通孔２に上遊動用凹所９ａと下遊動用凹所９ｂよりなる遊動用凹所９があるために、連結棒３の縦棒部３ａを前後に揺動させることができ、横棒部３ｂが台盤１の前面に対して垂直に突出した状態では横棒部３ｂを上下に揺動させることができる。これにより、図２４（ａ）（ｂ）のように横棒部３ｂを上下させるだけで連結係止部４を連結孔８に挿入したり、連結孔８から抜いたりでき、連結棒３による連結の係脱の操作が容易にできる。
【００１９】
また運搬用台車Ａを連結しないときには連結棒３を収納するが、連結棒３を図２５の矢印ｈやｉに示す方向に自在に回動することができ、左右の両側に連結棒収納凹部１０を設けてあるために連結棒３を左右のどちらの連結棒収納凹部１０の側にも収納することができる。また連結棒３を回動して連結棒３の横棒部３ｂの先端を連結棒収納凹部１０に収納したとき、リブ１０ｂの嵌合凹部１０ｃに横棒部３ｂが嵌合すると共に横棒部３ｂが傾斜リブ３２に圧接され、横棒部３ｂが嵌合凹部１０ｃと傾斜リブ３２との間に弾性的に挟持される。これにより、連結棒３を回動するだけで連結棒３が収納保持され、収納した連結棒３が不用意に突出することがない。
【００２０】
またハンドル１３を支持するハンドル支持部１１の差し込み孔１２は有底であるが、底部に開口孔３４を穿孔してあるため、屋外に放置したりしたとき、差し込み孔１２に雨水等が浸入しても雨水がスムーズに排水される。また差し込み孔１２の内面にリブ３５を設けてあるためにハンドル１３の両側の下端部の差し込み部を差し込み孔１２に差し込んだとき差し込み部が弾性的に支持され、ハンドル１３が外れないようにセットされる。
【００２１】
また運搬用台車Ａの台盤１には一対の持ち手用開口２７と一対の持ち手用開口２８が設けてあり、持ち手用開口２７，２８は４箇所にあるために運搬用台車Ａはどの方向からでも持つことができる。また持ち手用開口２７は運搬用台車Ａを持ち運びするときに主に用いられ、持ち手用開口２８は運搬用台車Ａを段積みしたり、運搬用台車Ａをトラック３７の荷台３８から引き降ろしたりするのに用いられる。
【００２２】
また運搬用台車Ａの台盤１の外周面は、図２６に示すように印刷面４１となるが、外周面の上下に突条４２を全周に亙るように設けてあるために印刷面４１が接触して傷付くおそれがない。また運搬用台車Ａの台盤１の上面の上面リブ２３は断面円弧状で台盤１の長手方向に平行に設けてあるために上面リブ２３を設けてあっても運搬用台車Ａを洗浄するときの洗浄性がよい。
【００２３】
【発明の効果】
本発明の請求項１の運搬用台車は、矩形状の台盤の下面側の４隅部に走行用のキャスターを装着し、台盤の一端に位置決め凹部を凹設すると共に台盤の他端に上記位置決め凹部に嵌合し得る位置決め突部となるハンドル支持部を突設しているので、複数の運搬用台車を隣合う運搬用台車の台盤の端縁同士が当たるように並べたとき、隣合う運搬用台車の間で位置決め凹部と位置決め突部としてのハンドル支持部とが嵌合し、運搬用台車が横ずれするのを防止できるものであり、しかも運搬用台車を複数並べたとき運搬用台車が横ずれしないように位置決めする位置決め突部と、運搬用台車を移動させるときに手で持つハンドルを支持するハンドル支持部を同じ部分で兼用することができるものであり、さらにハンドル支持部に上端を開口せる差し込み孔を設け、ハンドルの下端部を差し込み孔に挿脱自在に差し込み支持し得るようにしているので、ハンドルの下端部の差し込み部をハンドル支持部の差し込み孔に差し込むだけでハンドルを台盤の端部に簡単にセットできてハンドルを手で持って運搬用台車を容易に移動することができるものであり、さらに台盤の一端に上下に貫通するように設けた挿通孔に略逆Ｌ字状の連結棒の縦棒部を回転自在に挿通し、挿通孔内の上部における台盤の内方向に上遊動用凹所を設けると共に挿通孔内の下部の台盤の外方向に下遊動用凹所を設けて連結棒の縦棒部を前後方向に遊動自在とし、上記略逆Ｌ字状の連結棒の横棒部の先端から下方に突設した連結係止部を挿入し得る連結孔を台盤の他端に設けているので、一方の運搬用台車の連結棒の連結係止部を他方の運搬用台車の連結孔に挿入することで複数の運搬用台車を連結できると共に連結係止部を連結孔から抜くことで運搬用台車の連結を外すことができるものであり、また連結棒の横棒部が上下に揺動し得るように挿通孔内の上部における台盤の内方向に上遊動用凹所を設けると共に挿通孔内の下部の台盤の外方向に下遊動用凹所を設けて連結棒の縦棒部を前後方向に遊動自在としてあるため、連結棒の横棒部を上下に揺動させることができ、横棒部を上下に揺動させるだけで連結係止部を連結孔に挿入係止したり、連結係止部を連結孔から抜いたりできて連結棒の連結操作や連結を外す操作が容易にできるものであり、また、連結棒の横棒部を台盤の一端の端部と略平行となるように向けた連結棒の収納位置で連結棒の先端部分を収納し得る連結棒収納凹所を台盤の一端側に開口するように設けてあるので、連結しない場合は、連結棒の横棒部を台盤の前端縁と平行になる向きに向けた状態で横棒部の先端部を連結棒収納凹部に収納することができる。
【図面の簡単な説明】
【図１】本発明の実施の形態の一例の運搬用台車の平面図である。
【図２】同上の運搬用台車の正面図である。
【図３】同上の運搬用台車の左側面図である。
【図４】同上の運搬用台車の連結棒を収納した状態の右側面図である。
【図５】同上の台盤の平面図である。
【図６】同上の台盤の底面図である。
【図７】同上の台盤の右側面図である。
【図８】図５のＢ−Ｂ′線断面図である。
【図９】図５のＣ−Ｃ′線断面図である。
【図１０】図５のＤ−Ｄ′線断面図である。
【図１１】図５のＥ−Ｅ′線断面図である。
【図１２】図５のＦ−Ｆ′線断面図である。
【図１３】図５のＧ−Ｇ′線断面図である。
【図１４】（ａ）は図５のＨ−Ｈ′線断面図、（ｂ）は図５のＪ−Ｊ′線断面図である。
【図１５】製造業者で運搬用台車をトラックの荷台に積み込む状態を説明する平面図である。
【図１６】流通センターで運搬用台車をトラックの荷台から降ろす状態を説明する平面図である。
【図１７】流通センターで複数の運搬用台車を連結して移動する状態を説明する平面図である。
【図１８】流通センターで運搬用台車をトラックの荷台に積み込む状態を説明する平面図である。
【図１９】運搬用台車にハンドルをセットした状態で、（ａ）は側面図、（ｂ）は正面図である。
【図２０】運搬用台車に荷物を載せたり運搬用台車から荷物を降ろしたりする状態を説明する説明図である。
【図２１】（ａ）は複数の運搬用台車を並べた状態の平面図、（ｂ）は隣合う運搬用台車の位置決め凹部と位置決め突部とを嵌合した状態を示す断面図である。
【図２２】（ａ）は運搬用台車を上下に段積みした状態の正面図、（ｂ）は運搬用台車を段積みした状態の断面図である。
【図２３】運搬用台車を連結して移動する状態を説明する平面図である。
【図２４】（ａ）（ｂ）は連結棒の操作を説明する断面図である。
【図２５】（ａ）は連結棒の収納を説明する平面図、（ｂ）は連結棒を収納した状態を説明する断面図である。
【図２６】運搬用台車の台盤の印刷面を示す正面図である。
【図２７】（ａ）（ｂ）は従来例の連結棒の操作を説明する断面図である。
【符号の説明】
Ａ 運搬用台車
１ 台盤
２ 挿通孔
３ 連結棒
３ａ 縦棒部
３ｂ 横棒部
４ 連結係止部
５ キャスター
６ 位置決め凹部
７ 位置決め突部
８ 連結孔
９ 遊動用凹所
１０ 連結棒収納凹部
１１ ハンドル支持部
１２ 差し込み孔
１３ ハンドル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a carriage used for carrying a cargo such as a container on the carriage.
[0002]
[Prior art]
As this type of conventional transportation cart, there are those disclosed in Japanese Utility Model Laid-Open No. 6-16140 and Japanese Patent Laid-Open No. 7-285443. This transporting carriage is formed by attaching traveling casters to the four corners on the lower side of the rectangular base, and placing a load like a container on the base and rolling the casters It can be transported by. Further, since a transporting carriage may be connected and transported, a substantially inverted L-shaped connecting rod is rotatably mounted on the base. That is, as shown in FIG. 27, an insertion hole 2 penetrating vertically is drilled at one end of the base 1, and the vertical bar portion 3 a of the substantially inverted L-shaped connecting rod 3 is rotatably inserted into the insertion hole 2. A connecting locking portion 4 projecting downward is projected from the tip of the horizontal bar portion 3 b of the connecting rod 3, and the connecting locking portion 4 is inserted and locked into the connecting hole at the other end of the base 1. It can be done.
[0003]
[Problems to be solved by the invention]
By the way, the transport carts as described above are transported on a truck bed, but when a plurality of transport carts are arranged side by side on the truck bed, adjacent transport carts can be positioned. However, there is a problem that the transport cart is displaced laterally.
[0004]
In addition, there is a case where the transporting carriage is used by being connected by the connecting rod 3, and at this time, the vertical bar portion 3a of the connecting rod 3 is slid up and down with respect to the insertion hole 2 as shown in FIGS. The entire connecting rod 3 is moved up and down, and the connecting locking portion 4 is inserted into and removed from the connecting hole. However, the entire connecting rod 3 must be translated in the vertical direction to perform the insertion / removal operation. Therefore, there is a problem that it is difficult to perform an operation of connecting with the connecting rod 3 or disconnecting the connecting rod 3.
[0005]
The present invention has been made in view of the description, and it is an object of the present invention to position adjacent transport carts to prevent lateral displacement when a plurality of transport carts are arranged, and to provide a plurality of transport carts. It is an object of the present invention to make the operation of connecting and disconnecting with a connecting rod smooth.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, the transport carriage A according to the present invention is provided with traveling casters 5 at the four corners on the lower surface side of the rectangular base plate 1, and a positioning recess 6 is provided at one end of the base plate 1. In addition, a handle support portion 11 serving as a positioning projection 7 that can be fitted into the positioning recess 6 is provided at the other end of the base 1, and an insertion hole 12 that opens the upper end is provided in the handle support 11. When the handle 1 is moved, the lower end of the handle 13 that is held by hand can be inserted into and supported by the insertion hole 12 so that it can be inserted and removed. A vertical bar portion 3a of the character-shaped connecting rod 3 is rotatably inserted, and an upper floating recess 9a is provided in the upper portion of the insertion hole 2 in the inward direction of the platform 1, and a lower base in the insertion hole 2 is provided. 1 is provided with a lower floating recess 9b in the outer direction, and the vertical bar portion 3a of the connecting rod 3 is moved in the front-rear direction Floating and freely, provided the coupling hole 8 capable of inserting the coupling engagement portion 4 which projects downward from the tip of the horizontal bar portion 3b of the connecting rod 3 of the substantially inverted L-shape to the other end of Taiban 1, coupling A connecting rod storage recess 10 that can store the distal end portion of the connecting rod 3 at the storage position of the connecting rod 3 in which the horizontal bar portion 3b of the bar 3 is oriented so as to be substantially parallel to one end of the base 1 It is provided so as to open to one end side of the panel 1 . When a plurality of transport carts A are arranged so that the edges of the bases 1 of the adjacent transport carts A are in contact with each other, the positioning recess 6 and the positioning projection 7 are fitted between the adjacent transport carts A In addition, it is possible to prevent the transport carriage A from being laterally displaced. Further, the positioning projection 7 for positioning the transportation carriage A so as not to be laterally displaced when a plurality of transportation carriages A are arranged, and the handle support section 11 for supporting the handle 13 held by hand when moving the transportation carriage A are the same part. Can be used in combination. Moreover, the handle 13 can be easily set at the end of the base 1 simply by inserting the insertion portion of the lower end portion of the handle 13 into the insertion hole 12 of the handle support portion 11, and the carrying carriage A can be easily held by holding the handle 13 by hand. Can be moved to. When the plurality of transport carts A are connected and moved, the connection locking portion 4 of the connecting rod 3 is inserted and locked into the connection hole 8, and when the plurality of transport carts A is disconnected, the connection locking is performed. The portion 4 is pulled out from the connecting hole 8. At this time, the vertical bar portion 3 a of the connecting rod 3 is idled by an upper floating recess 9 a provided in the upper portion of the insertion hole 2 and a lower floating recess 9 b provided in the lower portion. Therefore, the horizontal bar portion 3b of the connecting rod 3 can be swung up and down, and the connecting locking portion 4 can be inserted and locked into the connecting hole 8 by simply swinging the horizontal bar portion 3b up and down. The stop portion 4 can be removed from the connection hole 8, and the connection operation of the connection rod 3 and the operation of removing the connection can be easily performed. Further, when not connected, the leading end portion of the horizontal bar portion 3b can be stored in the connecting rod storage recess 10 with the horizontal bar portion 3b of the connecting rod 3 oriented in a direction parallel to the front edge of the base plate 1. it can.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The transport carriage A is formed as shown in FIGS. 1 to 4, and casters 5 are attached to the four corners on the lower surface side of the base 1 that can be formed of synthetic resin as shown in FIGS. 5 to 11. It is. In the following description, for the sake of convenience, one end side in the longitudinal direction of the base plate 1 will be described as the front, and the other end side will be described as the rear. The casters 5 mounted on both sides of the front side of the base plate 1 are free casters 5a, and the casters 5 mounted on both sides of the back side of the base plate 1 are fixed casters 5b. In the universal caster 5a, the wheel 16 is rotatably attached to the wheel receiver 15, and the wheel receiver 15 is rotatably attached to the base 17 in the circumferential direction. The pedestal 17 of the universal caster 5a is fixed to the base 1 with bolts 18 and nuts 19. In the fixed caster 5 b, the wheel 16 is rotatably mounted on the wheel receiver 20, and the wheel receiver 15 is fixed to the base 1 with bolts 18 and nuts 19.
[0008]
The pedestal 1 is provided in the center so as to penetrate a rectangular opening 21 up and down, and projecting edges 22 for preventing load collapse protrude upward on the front and both side edges of the upper surface of the pedestal 1. It is provided to do. The projecting edge portion 22 is not provided at the front central portion and the rear side of the upper surface of the base plate 1. A large number of upper surface ribs 23 that are long in the longitudinal direction of the base plate 1 and have an arc-shaped cross section are provided on the upper surface of the base plate 1. At the four corners on the upper surface side of the platform 1, a stacking recess 24 is provided at a position corresponding to the top of the caster 5, and the transport positioned above when the transport cart A is stacked up and down. The caster 5 of the trolley A is fitted in the stacking recess 24 of the transport trolley located below. Among the four stacking recesses 24, the front stacking recesses 24a located on both sides of the front side are recesses into which the free casters 5a are fitted, and the rear stacking recesses 24b positioned on both sides of the rear side Is a recess into which the fixed caster 5b is fitted. A through hole 25 through which the bolt 18 is inserted is drilled from the bottom surface of the stacking concave portion 24 to the lower surface side of the base plate 1 as shown in FIG. A portion 26 is provided. Further, on both sides of the base 1, a handle opening 27 is provided so as to penetrate vertically in the center in the front-rear direction, and a handle opening 28 is provided in the center in the width direction on the front side and the rear side of the base 1. Is provided so as to penetrate vertically.
[0009]
A step portion 30 lower than the height of the upper surface of the base plate 1 is provided at the center in the width direction of the front end of the base plate 1, and an insertion hole that penetrates from the step portion 30 to the bottom of the base plate 1 in the center of the step portion 30. 2 is perforated. The connecting rod 3 is formed in a substantially inverted L shape with the vertical bar portion 3a and the horizontal bar portion 3b, and the connecting locking portion 4 is arranged so as to be substantially parallel to the vertical bar portion 3a from the tip of the horizontal bar portion 3b. Projected. The vertical bar portion 3a of the connecting rod 3 is rotatably inserted into the insertion hole 2, and a stopper 31 such as a nut or a washer is attached to the lower end of the vertical bar portion 3a, and the vertical bar portion 3a is inserted into the insertion hole 2. It is designed not to come out of it. As shown in FIG. 14, a floating recess 9 is provided in the insertion hole 2 by providing a recess in a part of the circumferential direction. This floating recess 9 is formed at a part in the circumferential direction at the upper part in the insertion hole 2 (rear side ; that is, as shown in FIGS. 14 and 24, the inner side of the base plate 1 in the upper part in the insertion hole 2 ). A portion of the upper floating recess 9a and the lower part in the insertion hole 2 in the circumferential direction (front side ; that is, the outer side of the base 1 in the lower part in the insertion hole 2 as shown in FIGS. 14 and 24 ) The upper floating recess 9a and the lower floating recess 9b are provided in opposite directions. Thereby, the vertical bar portion 3a of the connecting rod 3 can swing in the front-rear direction, and the horizontal bar portion 3b can swing up and down when the horizontal bar portion 3b is projected forward. The front end of the base plate 1 is provided with connecting rod storage recesses 10 at positions on both sides of the stepped portion 30, and the horizontal bar portion 3 b of the connecting rod 3 is oriented in a direction parallel to the front end edge of the base plate 1. Thus, the tip of the horizontal bar portion 3b is accommodated in the connecting rod accommodating recess 10. The connecting rod storage recess 10 is provided symmetrically about the insertion hole 2 so that the tip of the horizontal bar portion 3b can be stored in the connecting rod storage recess 10 even if the connecting rod 3 is rotated in either the left or right direction. It is like that. The connecting rod storage recess 10 is open at the front, a rib 10b protruding downward is provided on the lower surface side of the upper wall 10a of the connecting rod storage recess 10, and a semicircular fitting recess is formed on the lower surface side of the rib 10b. 10c is provided, and the upper portion of the horizontal bar portion 3b is fitted into the fitting concave portion 10c in a state where the distal end portion of the horizontal bar portion 3b of the connecting rod 3 is stored in the connecting rod storage concave portion 10. In addition, inclined ribs 32 are provided on both sides of the stepped portion 30, and the horizontal bar portion 3b is placed on the inclined rib 32 in a state where the horizontal bar portion 3b is fitted in the fitting concave portion 10c, and the fitting concave portion 10c and the inclined rib are provided. The horizontal bar 3b is elastically sandwiched between the horizontal bar 3b and 32. Further, a step portion 33 having a height lower than the upper surface of the base plate 1 is provided at the center in the width direction of the rear end of the base plate 1. Is perforated. And the connection latching | locking part 4 of the front-end | tip of the horizontal bar part 3b of the said connection rod 3 can be inserted and latched in the connection hole 8. FIG.
[0010]
A positioning recess 6 is provided at a position below the connecting rod storage recess 10 at the front end of the base 1. The positioning recess 6 is open forward and downward. A pair of handle support portions 11 protrude from the rear end of the base 1 so as to protrude rearward, and the handle support portion 11 is provided with an insertion hole 12 that opens upward. The handle support portion 11 also functions as the positioning protrusion 7 so that the positioning protrusion 7 can be fitted into the positioning recess 6. The insertion hole 12 has a bottomed shape having a bottom portion below, but has an opening hole 34 at the bottom portion. A rib 35 projects from the inner surface of the insertion hole 12. Insertion portions at both lower ends of the handle 13 can be inserted into the insertion hole 12, and the handle 13 can be erected vertically by inserting the insertion portion into the insertion hole 12. Further, corner protective cushioning materials 36 such as rubber are mounted on the outer surfaces of the four corners of the base 1.
[0011]
Next, a method of using the transport carriage A configured as described above will be described.
[0012]
In a manufacturer such as a parts manufacturer or a food processor, as shown in FIG. 15, a transporting carriage A in which a cargo such as a container is loaded on a platform 1 is placed on a loading platform 38 of a truck 37 for a large number of transportation. The trucks A are loaded so as to be regularly arranged on the loading platform 38. When the transport cart A is pushed by hand in the direction of arrow a in FIG. 15 and loaded on the loading platform 38, the one having the fixed casters 5b is moved as the driver's seat 39 side. In this case, in order to push and load the transport carriage A toward the driver's seat 39 side, it is easier to work when the fixed caster 5b faces the transport seat 39 side and the free caster 5b faces reversely. As described above, the transport cart A is placed together with the luggage and delivered to a distribution center such as a collection / delivery center or a warehouse storage center at 37 on the truck. When delivered to the distribution center, the transport carriage A is unloaded from the loading platform 38 along with the package as shown in FIG. At this time, as shown by an arrow b in FIG. When pulling down the transport carriage A, the free caster 5b is located on the near side, so that it is easy to pull and unload it. In a state where the transport carriage A is lowered from the loading platform 38, the horizontal bar portion 3b of the connecting rod 3 is rotated so as to protrude, and the connection locking portion 4 is inserted into the connecting hole 8 of the adjacent transport cart A. A plurality of transport carts A are connected to each other. In this case, since there is the connecting rod 3 in the direction in which the transport carriage A is pulled down, it can be smoothly connected as it is. The plurality of transport carts A that are lowered and connected from the truck 37 are pulled in the direction of the arrow in FIG. 17 and moved to the shipping place. As shown in FIG. 18, the transport cart A moved to the shipping place is placed on a loading platform 38 of another truck 37 for delivery to a store such as a supermarket or a retail store. At this time, the connection by the connecting rod 3 is removed and the connecting rod 3 is rotated so that the connecting rod 3 is stored in the connecting rod storage recess 10 and the direction of the transport carriage A is reversed as shown by the arrow c in FIG. Then, the carriage A is loaded as indicated by the arrow d with the fixed caster 5b side facing the driver's seat 39 side. Then, the truck 37 delivers the goods to individual stores, and the transport cart A on which the necessary luggage is loaded is dropped. When the transport cart A is lowered at the store, the handle 13 is set on the transport cart A as shown in FIG. The handle 13 is set by inserting the insertion portions at the lower ends on both sides into the insertion holes 12 of the handle support portion 11. Then, in the store, the handle 13 is held by hand and is transported by operating like a wheelbarrow. At this time, since the free caster 5a is pushed so as to be positioned on the traveling direction side indicated by an arrow e in FIG. 19B, even if there is a step or the like, it can be easily traveled and moved. The carriage A with the package unloaded is removed by removing the handle 13 and stacked and collected as will be described later.
[0013]
Next, the characteristics when handling the transport carriage A configured as described above will be further described.
[0014]
Although a load such as a container is placed on the transport carriage A, since the protrusions 22 are provided on the front and both sides of the platform 1, the load can be placed so as not to fall. Further, since there is no protruding edge portion 22 on the rear side of the base plate 1, the load 40 can be loaded or unloaded in the direction of arrow f in FIG. At this time, since the upper surface of the base plate 1 has an upper surface rib 23 having a circular arc shape and a long length in the longitudinal direction, the load can be easily slid in the direction of the arrow f.
[0015]
In addition, when the transport carriage A is loaded on the loading platform 38 of the truck 37, they are arranged so that the edges of the base plates 1 of the adjacent transport carriages A come into contact with each other as shown in FIG. Between the transport carts A adjacent to each other, the positioning projection 7 that also serves as the handle support portion 11 of one transport cart A is fitted into the positioning recess 6 of the other transport cart A as shown in FIG. . For this reason, the transport carriage A adjacent in the front-rear direction can be prevented from being laterally shifted during transportation.
[0016]
Also, the transport cart A that has been emptied by unloading the luggage is recovered again. However, when recovering, a plurality of transport carts A are stacked up and down as shown in FIGS. 22 (a) and 22 (b). The When a plurality of transport carts A are stacked up and down, the casters 5 of the transport cart A positioned above are stacked so as to fit in the stacking recesses 24 of the transport cart A positioned below. At this time, the casters 5 are housed in the stacking recesses 24 so that the casters 5 stacked on top of each other roll and the transport carts A stacked thereon do not fall, and the plurality of transport carts A are moved up and down. Can be stacked stably.
[0017]
Further, when a plurality of transport carts A are connected by the connecting rod 3 and moved in the direction of the arrow g in FIG. 23, the corners of the base 1 of the transport cart A adjacent to each other may collide when turning a corner. However, even if the corners collide with each other, the corner protection cushioning material 36 is attached to the outer surface of the corner of the base 1 so that the impact is buffered by the corner protection cushioning material 36, so that the impact can be absorbed and noise can be absorbed. It can also be prevented.
[0018]
Further, when connecting a plurality of transporting carriages A, the connecting locking part 4 at the tip of the horizontal bar part 3b of the connecting bar 3 is inserted into the connecting hole 8 and when connecting the plurality of transporting carriages A, the connecting bar 3 The connecting locking portion 4 at the tip of the horizontal bar portion 3b is pulled out from the connecting hole 8, but this operation can be performed without the operation of moving the connecting rod 3 up and down as in the prior art. That is, since the insertion hole 2 has the floating recess 9 including the upper floating recess 9a and the lower floating recess 9b, the vertical bar portion 3a of the connecting rod 3 can be swung back and forth. In a state where the bar portion 3b protrudes perpendicularly to the front surface of the base 1, the horizontal bar portion 3b can be swung up and down. Thus, as shown in FIGS. 24 (a) and 24 (b), the connection locking portion 4 can be inserted into or removed from the connection hole 8 simply by moving the horizontal bar portion 3 b up and down. This makes it easy to engage and disengage.
[0019]
Further, when the transport carriage A is not connected, the connecting rod 3 is accommodated. However, the connecting rod 3 can be freely rotated in the direction shown by the arrows h and i in FIG. Therefore, the connecting rod 3 can be stored in either the left or right connecting rod storage recess 10 side. Further, when the connecting rod 3 is rotated and the tip of the horizontal bar portion 3b of the connecting rod 3 is stored in the connecting rod storage recess 10, the horizontal bar portion 3b is fitted into the fitting recess 10c of the rib 10b and the horizontal bar portion. 3 b is pressed against the inclined rib 32, and the horizontal bar portion 3 b is elastically held between the fitting recess 10 c and the inclined rib 32. Thereby, the connecting rod 3 is stored and held only by rotating the connecting rod 3, and the stored connecting rod 3 does not protrude carelessly.
[0020]
Moreover, although the insertion hole 12 of the handle support part 11 which supports the handle 13 has a bottom, since an opening hole 34 is perforated at the bottom, rain water or the like enters the insertion hole 12 when left outside. Even rainwater drains smoothly. In addition, since ribs 35 are provided on the inner surface of the insertion hole 12, the insertion part is elastically supported when the insertion parts at the lower ends on both sides of the handle 13 are inserted into the insertion hole 12, and the handle 13 is set so as not to come off. Is done.
[0021]
The carriage 1 of the carriage A is provided with a pair of handle openings 27 and a pair of handle openings 28. Since the handle openings 27 and 28 are provided at four locations, the carriage A is You can have it from any direction. Further, the opening 27 for the handle is mainly used when carrying the carriage A, and the opening 28 for the handle is used for stacking the carriage A or for lowering the carriage A from the loading platform 38 of the truck 37. Used to do.
[0022]
Further, the outer peripheral surface of the carriage 1 of the transport carriage A becomes a printing surface 41 as shown in FIG. 26. However, since the protrusions 42 are provided on the upper and lower sides of the outer peripheral surface, the printing surface 41 is provided. There is no risk of touching and scratching. Further, since the upper surface rib 23 on the upper surface of the base 1 of the transport carriage A is circular in cross section and provided in parallel with the longitudinal direction of the base 1, the transport carriage A is washed even if the upper surface rib 23 is provided. Good cleaning performance.
[0023]
【The invention's effect】
According to a first aspect of the present invention, there is provided a transporting carriage in which traveling casters are mounted at four corners on the lower surface side of a rectangular base plate, a positioning recess is provided at one end of the base plate, and the other end of the base plate is provided. Since a handle support portion that serves as a positioning protrusion that can be fitted into the positioning recess is protruded, when a plurality of transportation carriages are arranged so that the edges of the adjacent carriage carriages are in contact with each other The positioning recesses and the handle support portions as positioning protrusions can be fitted between adjacent transport carts to prevent the transport carts from shifting laterally. The positioning projection that positions the carriage so that it does not shift laterally and the handle support that supports the handle that the hand holds when moving the carriage can be used in the same part. Open the top The insertion hole is provided so that the lower end of the handle can be removably inserted into and supported by the insertion hole, so the handle can be mounted by simply inserting the insertion part at the lower end of the handle into the insertion hole of the handle support part. It can be easily set at the end of the carriage, and the carriage can be easily moved by holding the handle by hand. Furthermore, the insertion hole provided so as to penetrate vertically through one end of the base plate is substantially reverse L The vertical bar part of the character-shaped connecting rod is rotatably inserted, and an upper floating recess is provided in the upper part of the insertion hole at the upper part of the insertion hole and the lower floating part of the lower part of the insertion hole is moved downward. A connecting rod that is provided with a recess for allowing the vertical rod portion of the connecting rod to freely move in the front-rear direction, and that can be inserted with a connecting locking portion projecting downward from the tip of the horizontal rod portion of the substantially inverted L-shaped connecting rod. Since the hole is provided at the other end of the base, the connection rod of one transporting carriage A plurality of transportation carts can be connected by inserting the coupling locking portion into the coupling hole of the other transportation cart, and the transportation cart can be disconnected by removing the coupling locking portion from the coupling hole. In addition , an upper floating recess is provided in the upper part of the insertion hole in the upper part of the insertion hole so that the horizontal bar part of the connecting rod can swing up and down, and the outer part of the lower part of the insertion hole is provided in the outer direction. Since the lower floating recess is provided so that the vertical bar portion of the connecting rod can freely move in the front-rear direction, the horizontal bar portion of the connecting rod can be swung up and down, and the horizontal bar portion can be swung up and down. The connection locking part can be inserted into and locked in the connection hole, and the connection locking part can be removed from the connection hole, so that the connecting rod can be easily connected and disconnected . The tip of the connecting rod at the storage position of the connecting rod with the horizontal bar oriented substantially parallel to the end of one end of the platform Since the connecting rod storage recess that can store the portion is provided so as to open to one end side of the base, if not connecting, the horizontal bar part of the connecting rod is oriented parallel to the front edge of the base In this state, the tip of the horizontal bar can be stored in the connecting bar storage recess.
[Brief description of the drawings]
FIG. 1 is a plan view of a transport carriage according to an example of an embodiment of the present invention.
FIG. 2 is a front view of the same transportation carriage.
FIG. 3 is a left side view of the same transportation carriage.
FIG. 4 is a right side view showing a state in which the connecting rod of the transportation carriage is housed.
FIG. 5 is a plan view of the same platform.
FIG. 6 is a bottom view of the same platform.
FIG. 7 is a right side view of the same platform.
8 is a cross-sectional view taken along the line BB ′ of FIG.
9 is a cross-sectional view taken along the line CC ′ of FIG.
10 is a cross-sectional view taken along the line DD ′ of FIG.
11 is a cross-sectional view taken along the line EE ′ of FIG.
12 is a cross-sectional view taken along line FF ′ of FIG.
13 is a cross-sectional view taken along the line GG ′ of FIG.
14A is a cross-sectional view taken along the line HH ′ of FIG. 5, and FIG. 14B is a cross-sectional view taken along the line JJ ′ of FIG.
FIG. 15 is a plan view for explaining a state in which a manufacturer places a transport cart on a truck bed.
FIG. 16 is a plan view for explaining a state in which the transport cart is unloaded from the truck bed at the distribution center.
FIG. 17 is a plan view for explaining a state in which a plurality of transport carts are connected and moved at a distribution center.
FIG. 18 is a plan view for explaining a state in which a transport cart is loaded on a truck bed at a distribution center.
19A is a side view and FIG. 19B is a front view in a state in which a handle is set on the carriage.
FIG. 20 is an explanatory diagram illustrating a state in which a load is placed on a transport cart or a load is unloaded from the transport cart.
FIG. 21A is a plan view showing a state in which a plurality of transport carts are arranged, and FIG. 21B is a cross-sectional view showing a state where positioning recesses and positioning projections of adjacent transport carts are fitted.
22A is a front view of a state where transport carts are stacked up and down, and FIG. 22B is a cross-sectional view of a state where transport carts are stacked.
FIG. 23 is a plan view for explaining a state in which the transport carriage is connected and moved.
24 (a) and 24 (b) are cross-sectional views illustrating the operation of the connecting rod.
FIG. 25A is a plan view illustrating housing of the connecting rod, and FIG. 25B is a cross-sectional view illustrating a state in which the connecting rod is housed.
FIG. 26 is a front view showing the printing surface of the platform of the transportation carriage.
27 (a) and 27 (b) are cross-sectional views for explaining the operation of a conventional connecting rod.
[Explanation of symbols]
A Transport cart 1 Base 2 Insertion hole 3 Connecting rod 3a Vertical bar portion 3b Horizontal bar portion 4 Connection locking portion 5 Caster 6 Positioning recess 7 Positioning protrusion 8 Connection hole 9 Recess 10 for free movement Connecting rod storage recess 11 Handle Support part 12 Insertion hole 13 Handle

Claims (1)

矩形状の台盤の下面側の４隅部に走行用のキャスターを装着し、台盤の一端に位置決め凹部を凹設すると共に台盤の他端に上記位置決め凹部に嵌合し得る位置決め突部となるハンドル支持部を突設し、ハンドル支持部に上端を開口せる差し込み孔を設け、台盤を移動させるとき手で持つハンドルの下端部を差し込み孔に挿脱自在に差し込みし得るようにし、台盤の一端に上下に貫通するように設けた挿通孔に略逆Ｌ字状の連結棒の縦棒部を回転自在に挿通し、挿通孔内の上部における台盤の内方向に上遊動用凹所を設けると共に挿通孔内の下部の台盤の外方向に下遊動用凹所を設けて連結棒の縦棒部を前後方向に遊動自在とし、上記略逆Ｌ字状の連結棒の横棒部の先端から下方に突設した連結係止部を挿入し得る連結孔を台盤の他端に設け、連結棒の横棒部を台盤の一端の端部と略平行となるように向けた連結棒の収納位置で連結棒の先端部分を収納し得る連結棒収納凹所を台盤の一端側に開口するように設けて成ることを特徴とする運搬用台車。Positioning projections that are fitted with traveling casters at the four corners on the lower surface side of the rectangular base plate, have a positioning recess at one end of the base plate, and can fit into the positioning recess at the other end of the base plate The handle support part that protrudes and is provided with an insertion hole that opens the upper end of the handle support part, so that the lower end part of the handle that is held by hand can be removably inserted into the insertion hole when moving the base, A vertical bar portion of a substantially inverted L-shaped connecting rod is rotatably inserted into an insertion hole provided so as to penetrate vertically through one end of the base plate, and it is for upward movement in the inward direction of the base plate in the upper portion of the insertion hole. A recess is provided and a lower floating recess is provided on the outer side of the lower base in the insertion hole so that the vertical bar portion of the connecting rod can freely move in the front-rear direction. provided a connecting hole from the tip of the rod portion can be inserted a coupling engagement portion projecting from the lower side to the other end of Taiban, A connecting rod storage recess that can store the tip of the connecting rod at the connecting rod storage position with the horizontal rod portion of the connecting rod oriented substantially parallel to the end of one end of the platform is located on one end of the platform. A carriage for transportation characterized by being provided to open .

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