JP3857783B2 - Transportation cart connection structure - Google Patents

Transportation cart connection structure Download PDF

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Publication number
JP3857783B2
JP3857783B2 JP16460997A JP16460997A JP3857783B2 JP 3857783 B2 JP3857783 B2 JP 3857783B2 JP 16460997 A JP16460997 A JP 16460997A JP 16460997 A JP16460997 A JP 16460997A JP 3857783 B2 JP3857783 B2 JP 3857783B2
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Japan
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cart
frame
carriage
adjacent
sides
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JP16460997A
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Japanese (ja)
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JPH1111324A (en
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成伸 田辺
哲也 村上
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Gifu Plastic Industry Co Ltd
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Gifu Plastic Industry Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、運搬用台車を連結するための構造に関するものである。
【0002】
【従来の技術】
平面視長方形状をした台車本体の下面側にキャスタを設けて構成される運搬用台車は、台車本体の上面部に載置物を載置した状態で、または空の状態で単独で移動させていた。
【0003】
【発明が解決しようとする課題】
しかしながら、上記した従来例にあっては、台車本体の上面部に載置物を載置した状態で、または空の状態で単独で移動させていたので、複数の運搬用台車を移動させるに当たって移動に時間がかかるという問題がある。
ここで、運搬用台車を大きくして大量の載置物を載置して移動ですることも考えられるが、運搬用台車を移動させる通路の幅の大きさの制約を受けてあまり大きくすることができない。例えば、配送センター内において効率良く移動できるように運搬用台車の大きさを大きくした場合、この運搬用台車に載置物を載置した状態で、コンビニエンス・ストア内の通路を移動しようとしてもコンビニエンス・ストア内の通路が狭いため移動できないものであり、逆に、コンビニエンス・ストア内の通路を通過できる程度の大きさの運搬用台車の場合、配送センターなどにおいては、通路が広いにもかかわらず、運搬用台車が小さすぎて効率的な作業ができないという問題がある。
【0004】
本発明は上記の従来例の問題点に鑑みて発明したものであって、運搬用台車同士を連結したり、あるいは連結を解除したりして、通過する通路の広さに対応して最も効果的な状態として移動できるようにすることを主たる課題とし、また、運搬用台車同士を連結するに当たって、上下方向に棒積みする際に使用する係合凹部を利用して運搬用台車同士を簡単に連結したり、あるいは、運搬用台車同士を連結するに当たって、荷物保護用のフレームを利用して運搬用台車同士を簡単に連結したりできるようにすることを課題とするものである。
【0005】
【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の連結構造は、下面側にキャスタ1を有する平面視長方形状をした台車本体2の対向する両短辺に上方に向けて突台部7を突設し、突台部7の上面部の両端部に係合凹部4aを設けると共に、突台部7の上面の両端部の係合凹部4aよりもやや内側に荷物保護用のフレーム10の下部両側部に垂設した脚部10aを嵌め込み自在とするためのフレーム差込み部を設け、台車本体2の係合凹部4aに係合する係合突部3aを台車本体2の短辺部の下面部に設けることにより棒積みでき、且つ、隣合う台車本体2の長辺同士を隣接させると共に連結部材17の両側部に垂下した嵌め込み用脚部18をそれぞれ隣接する台車本体2の係合凹部4aに着脱自在に嵌め込んで台車本体2同士を連結して成ることを特徴とするものである。このような構成とすることで、突台部7の上面部に設けたフレーム差込部に荷物保護用のフレーム10の脚部10aを差し込んだ状態で、連結部材17を介して簡単に台車本体2同士を連結することができ、この場合は連結した複数個の台車本体2にわたる大きい載置物16を載置すると共に隣合う台車本体2の短辺側の突台部7の上面部に設けた荷物保護用のフレーム10で荷物を保護した状態で移動することができ、また、連結部材17を外すことで連結解除ができ、通路幅などにより台車本体2を連結して移動したり、あるいは連結を解除して単独で移動させたりすることができるものであり、また、台車本体2が空の状態で下段の台車本体2の突台部7の上面部に上段の台車本体2の短辺部を載置すると共に係合凹部4aと係合突部3aとを係合することで、上下に棒積みをした状態で上段の台車本体2が下段の台車本体2に対して横ずれしないようにできるものであり、更に、この棒積みした状態で横振れ防止をするための係合凹部4aを利用して連結部材17の嵌め込み脚部18の嵌合ができるものである。
【0007】
【発明の実施の形態】
以下本発明を添付図面に示す実施形態に基づいて説明する。
図1乃至図4に示すように、台車本体2は平面視長方形状をしている。この台車本体2の下面には図4に示すようにキャスタ1(前輪側に自在キャスタ及び後輪側に固定キャスタまたは前後両輪共に自在キャスタ乃至固定キャスタを設ける場合がある)が回転自在に設けてある。台車本体2の対向する両短辺には該短辺に沿って上方に向けて突台部7を一体に突設してあり、この突台部7を一体に突設した台車本体2は合成樹脂により形成してある。図1、図2、図5、図7に示すように、突台部7の上面部には棒積み用被係合部4が設けてあり、添付図面に示す実施形態においては突台部7の上面部の両端部にそれぞれ係合凹部4aを設け、更に突台部7の上面部の中央部に凹部を形成して係合凹所4bを設け、これら係合凹部4a、係合凹所4bを棒積み用被係合部4としてある。また、突台部7の両端部の係合凹部4aよりもやや内側にはそれぞれ図6に示すように上下に貫通する孔27が形成してある。
【0008】
図中8は補強用ベース金具であって、図17(a)に示すように、金属製の梁材8aの両端部に金属製の角筒状をしたフレーム差込み金具8bを固着して構成してあり、梁材8aを図4のように台車本体2の下面部に長辺に平行に形成した凹溝条9にはめ込むと共に角筒状をしたフレーム差込み金具8bを上記突台部7に設けた孔27に嵌め込み、任意の固着手段により補強用ベース金具8を台車本体2に固着してある。このように補強用ベース金具8を台車本体2に取付けることで合成樹脂製の台車本体2の補強をおこなうものであり、また、角筒状をしたフレーム差込み金具8bには後述のフレーム10が差込まれてフレーム10を支持するためのフレーム差込み部となっており、このフレーム差込み部であるフレーム差込み金具8bにおいてフレーム10の支持を支持することでフレーム10の支持が確実且つ強固におこなえることになる。勿論、フレーム10が丸筒状であればフレーム差込み金具8bは図17(b)のような丸筒状になることはいうまでもない。また、台車本体2の外側面部のコーナ部分にはゴム製のコーナ保護部29が設けてある。
【0009】
台車本体2の両長辺側にはそれぞれ細長孔状をした持ち手用孔26が形成してあり、本実施形態においてはこの持ち手用孔26が十字積み用被係合部5を構成している。この持ち手用孔26は手を入れることができる大きさに形成してあり、持ち手用孔26に手を入れて掴むことで台車本体2を手で持って移動できるようになっている。
【0010】
台車本体2は、図14に示すように、下段の台車本体2の突台部7の上面部に上段の台車本体2の下面部の短辺部を載置する棒積みができるようになっており、この棒積み状態においては、上段の台車本体2のキャスタ1が下段の台車本体2の上面に対向するようになっている。つまり、図4に示すように、キャスタ1は台車本体2の突台部7の真下の下面部よりもやや内側にずれた位置において台車本体2の下面部の略四隅部分に取付けてあるので、上記のように台車本体2を棒積みした状態で上段のキャスタ1が下段の台車本体2の突台部7間に位置するようになっており(添付図面に示す実施形態においてはキャスタ1を回転させてキャスタ1の回転軸が台車本体2の長辺と略平行な方向とすることでキャスタ1を下段の台車本体2の突台部7間に位置するようにしてある)、しかも、この場合、キャスタ1の下方への突出長さは、台車本体2を棒積みした状態で上段のキャスタ1が下段の台車本体2の上面に接するか又は上段のキャスタ1が下段の台車本体2の上面から少し浮いた状態となるようにしてある。また、台車本体2の長辺と平行な方向において対向するキャスタ1同士は台車本体2の短辺の長さよりも長い距離を隔てるような位置に取付けてある。
【0011】
台車本体2の下面部の両短辺部にはそれぞれ棒積み用係合部3が設けてあり、添付図面に示す実施形態においては図3、図4に示すように下面部の短辺部の両端部にそれぞれ係合突部3aを設け、更に突台部7の下面部の短辺部の中央部に係合突起3bを設けてあって、この係合突部3a、係合突起3bが棒積み用係合部3を構成している。したがって、下段の台車本体2の突台部7の上面部に上段の台車本体2の短辺部を載置した棒積み状態では、係合突部3aが係合凹部4aに係合し、係合突起3bが係合凹所4bに係合するようになっていて、上段の台車本体2が下段の台車本体2に対して横ずれしないように上下方向に確実に接合され、安定した積み重ねができるようになっている。
【0012】
ところで、すでに述べたように、台車本体2の長辺と平行な方向において対向するキャスタ1同士は台車本体2の短辺の長さよりも長い距離を隔てるような位置に取付けてあるので、図15に示すように、下段の台車本体2の上面部に上段の台車本体2を平面視90°回転した状態で載置すると共に上段の台車本体2の下面のキャスタ1を下段の台車本体2の長辺側より外に位置させる十字積みができるものである。そして、この十字積み状態において、下段の台車本体2に設けた持ち手用孔26を構成する十字積み用被係合部5に係合するための下向き突部よりなる十字積み用係合部6が台車本体2の下面部に設けてある。このため、下段の台車本体2の上面部に上段の台車本体2の下面部を載置して十字積みした場合、下段の台車本体2の持ち手用孔26に上段の台車本体2の十字積み用係合部6が係合して、上段の台車本体2が下段の台車本体2に対して横ずれしないように上下方向に確実に接合され、安定した積み重ねができるようになっている。また、この十字積みをすると2個の台車を嵩低く積み重ねることができるものである。そして、台車本体2を手で持つ際に使用する持ち手用孔26をそのまま十字積みの際のずれ防止のための手段として兼用しているので、構成が簡略化されることになる。
【0013】
ここで、台車本体2を棒積みした状態で上下の台車本体2間の長さが台車本体2の厚み以上となるように設定してある。そして、このように設定することで、図16に示すように、1段目の台車本体2の上面部に2段目の台車本体2の下面部を十字積みし、更に、1段目の台車本体2の突台部7の上に3段目の台車本体2を棒積みするということが可能となるものである。このように上下方向に十字積み、棒積みを交互に繰り返しながら図16のように積み重ねていくことで、積み重ねた場合における嵩高さを棒積みだけの場合に比べて略1/2にできるものである。
【0014】
上記構成の運搬用台車の使用に当たっては台車本体2のフレーム差込み金具8bにフレーム10をはめ込んで取付けることで使用されるものである。フレーム10は下端部両側に脚部10aを突設してあり、この両側の脚部10aを突台部7に設けた一対のフレーム差込み金具8bにはめ込むと共にフレーム10の下部の当たり部13を突台部7上に載置することでフレーム10を突台部7に突設する。このようにしてフレーム10を両側の突台部7上に立設するものである。台車本体2の上面部には載置物16が載置される。ここでフレーム10を建て込むことで、載置物16を上下に多段に積み重ねて載置して載置高さが高くなってもフレーム10により横ずれを防止できるようになっている。なお、一方のフレーム10には連結棒14の一端部が回動自在に取付けてあり、連結棒14の他端部を他方のフレーム10の引っ掛け部15に着脱自在に引っ掛けて両フレーム10を連結するものである。
【0015】
また、運搬用台車の使用に当たっては図9に示すように単独で使用する場合と、後述の図10乃至図14に示すように複数の運搬用台車を連結して使用する場合とがある。つまり、運搬用台車が通過する通路の幅が狭い所では、運搬用台車を単独で移動させ、運搬用台車が通過する通路の幅が広い所では、複数の運搬用台車を連結した状態で移動させるのである。
【0016】
複数の運搬用台車を連結するには、隣合う台車本体2の長辺同士が当接するように並設した状態で連結する場合と、隣合う台車本体2の短辺同士が当接するように並設した状態で連結する場合とがある。
図10には隣合う台車本体2の長辺同士が当接するように並設した状態で連結する場合の一実施形態が示してあり、図11には隣合う台車本体2の短辺同士が当接するように並設した状態で連結する場合の一実施形態が示してある。これら図10、図11に示す実施形態においては、いずれも、逆U字状をした連結部材17を用いて台車本体2同士を連結するものである。すなわち、逆U字状をした連結部材17の両側の嵌め込み脚部18がそれぞれ隣合う台車本体2の凹部よりなる係合凹部4aに嵌め込まれることで連結部材17を介して隣合う台車本体2を連結するものである。このように台車本体2を横に並べた状態で連結することで、載置物16を載置した状態の台車本体2を複数個並べて連結した状態でキャスター1を転動させながら同時に移動させることができ、また、連結した複数個の台車本体2にわたる大きい載置物16を載置して移動することもできるものである。そして、これらの実施形態においては、棒積みした状態で横振れ防止をするための係合凹部4aを利用して連結部材17の嵌め込み脚部18の嵌合ができて、構成を簡略化できるものである。
【0017】
また、図12には隣合う台車本体2の長辺同士が当接するように並設した状態で連結する場合の他の実施形態が示してある。この実施形態においては、台車本体2同士を長辺同士が隣接するように並べた状態で隣合う台車本体2の上面部の短辺部に設けたフレーム差込み金具8bにそれぞれ両台車本体2を短辺側に沿ってまたぐフレーム10の両側に設けた脚部10aを着脱自在に嵌め込んで台車本体2同士を連結するものである。つまり、本実施形態においては、台車本体2同士を荷物保護用のフレーム10を利用して連結したものであり、荷物保護用のフレーム10を連結手段として利用することで、別途特別な連結専用の部材を必要としないものであって、部品点数を少なくできるものである。
【0018】
ここで、一対のフレーム差込み金具8bの大きさを脚部10aを台車本体2の短辺に沿って2本並べて嵌め込むことができるような大きさに形成してあると、図13に示すように各台車本体2にそれぞれフレーム10の下端部の1対の脚部10aをそれぞれ突台部7の上面に台車本体2の短辺に沿って2個設けたフレーム差込み金具8bの内側半分に嵌め込むことでフレーム10を立設し、更に、台車本体2同士を長辺同士が隣接するように並べた状態で隣合う台車本体2の上面部の短辺部に設けたフレーム差込み金具8bのうち隣合う台車本体2側に隣接する各フレーム差込み金具8bの外側半分にそれぞれ別のフレーム10の下端部の一対の脚部10aを嵌め込んで隣接する台車本体2同士を該フレーム10により連結するものである。このようにすると、各台車本体2にフレーム10を立設すると共に隣接する台車本体2にまたがってフレーム10を立設できて、フレーム10による荷物保護が確実にできるものである。
【0019】
【発明の効果】
本発明の請求項1記載の発明にあっては、上述のように、下面側にキャスタを有する平面視長方形状をした台車本体の対向する両短辺に上方に向けて突台部を突設し、突台部の上面部の両端部に係合凹部を設けると共に、突台部の上面の両端部の係合凹部よりもやや内側に荷物保護用のフレームの下部両側部に垂設した脚部を嵌め込み自在とするためのフレーム差込み部を設け、台車本体の係合凹部に係合する係合突部を台車本体の短辺部の下面部に設けることにより棒積みができ、且つ、隣合う台車本体の長辺同士を隣接させると共に連結部材の両側部に垂下した嵌め込み用脚部をそれぞれ隣接する台車本体の係合凹部に着脱自在に嵌め込んで台車本体同士を連結してあるので、突台部の上面部に設けたフレーム差込部に荷物保護用のフレームの脚部を差し込んだ状態で、連結部材を介して簡単に台車本体同士を連結することができ、この場合は連結した複数個の台車本体にわたる大きい載置物を載置すると共に隣合う台車本体の短辺側の突台部の上面部に設けた荷物保護用のフレームで荷物を保護した状態で移動することができ、また連結部材を外すことで連結解除ができるものであって、通路幅などにより台車本体を連結して移動したり、あるいは連結を解除して単独で移動させることが簡単にできて、通路幅に応じて最も搬送効率の良い形態が簡単に選べるものであり、また、台車本体が空の状態で下段の台車本体の突台部の上面部に上段の台車本体の短辺部を載置すると共に係合凹部と係合突部とを係合することで、上下に棒積みをした状態で上段の台車本体が下段の台車本体に対して横ずれしないようにできるものであり、更に、この棒積みした状態で横振れ防止をするための係合凹部を利用して連結部材の嵌め込み脚部の嵌合ができるものであって、部材点数の削減がはかれ構成を簡略化できるものである。
【図面の簡単な説明】
【図1】本発明の運搬用台車の斜視図である。
【図2】同上の平面図である。
【図3】同上の下面図である。
【図4】同上の上下逆にした状態の斜視図である。
【図5】同上の長辺と平行な方向での断面図である。
【図6】同上の長辺と平行な方向での他の箇所の断面図である。
【図7】同上の短辺と平行な方向での断面図である。
【図8】同上のフレームを取付けている状態の斜視図である。
【図9】同上の載置物を載せた状態の斜視図である。
【図10】同上の運搬用台車を長辺を隣接させて接続した状態の斜視図である。
【図11】同上の運搬用台車を短辺を隣接させて接続した状態の斜視図である。
【図12】同上の運搬用台車を長辺を隣接させて接続した状態の他の実施形態を示す斜視図である。
【図13】同上の運搬用台車を長辺を隣接させて接続した状態の更に他の実施形態を示す斜視図である。
【図14】同上の棒積み状態の正面図である。
【図15】同上の十字積み状態を示し、(a)は正面図であり、(b)は平面図である。
【図16】同上の十字積みと棒積みとを上下方向に交互に繰り返しながら積み重ねた状態を示し、(a)は正面図であり、(b)は平面図である。
【図17】(a)は本発明に用いて補強用ベース金具の斜視図であり、(b)は同上の他例の斜視図である。
【符号の説明】
1 キャスタ
2 台車本体
3a 係合突部
4a 係合凹部
7 突台部
8b フレーム差込み部
10 フレーム
10a 脚部
17 連結部材
18 嵌め込み用脚部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for connecting a transport cart.
[0002]
[Prior art]
The transport cart configured by providing a caster on the lower surface side of the cart body having a rectangular shape in plan view was moved alone with the object placed on the upper surface of the cart body or in an empty state. .
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional example, the object is moved in a state where the object is placed on the upper surface of the carriage main body or in an empty state, so that it is moved when moving a plurality of transportation carriages. There is a problem that it takes time.
Here, it is conceivable that the transport cart is enlarged and a large amount of objects are placed on it, but it can be moved too much due to restrictions on the width of the passage for moving the transport cart. Can not. For example, if the size of the transport cart is increased so that it can be moved efficiently in the distribution center, even if an attempt is made to move the passage in the convenience store with the load placed on the transport cart, In the case of a transport cart that is large enough to pass through a passage in a convenience store, on the contrary, in a distribution center or the like, although the passage is wide, the passage in the store cannot be moved. There is a problem that the transport cart is too small to perform efficient work.
[0004]
The present invention has been invented in view of the problems of the above-described conventional example, and is most effective corresponding to the size of the passage that passes by connecting the carriages or releasing the connection. The main problem is to make it possible to move as a general state, and in connecting the transporting carts, the transporting carts can be easily connected to each other using the engaging recesses used when stacking the bars vertically. An object of the present invention is to make it possible to easily connect the transporting carts using the luggage protection frame when connecting the transporting carts.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the transportation cart connection structure of the present invention is configured such that the projecting platform portion 7 is directed upward on both opposing short sides of the cart body 2 having a rectangular shape in plan view having casters 1 on the lower surface side. The projecting portion 7 is provided with engaging recesses 4a at both ends of the upper surface portion of the projecting portion 7, and the lower portion of the frame 10 for protecting the luggage is slightly inside the engaging recess portions 4a at both ends of the upper surface of the projecting portion 7. A frame insertion portion is provided for allowing the leg portions 10a suspended from both sides to be freely fitted, and the engagement protrusion 3a that engages with the engagement recess 4a of the carriage body 2 is provided on the lower surface portion of the short side portion of the carriage body 2 The fitting leg portions 18 that are hung down on both sides of the connecting member 17 and that are adjacent to the long sides of the adjacent cart main bodies 2 are provided in the engaging recesses 4a of the adjacent cart main bodies 2 respectively. It is detachably fitted to connect the trolley bodies 2 to each other. And it is characterized in and. With such a configuration, the main body of the carriage can be easily connected via the connecting member 17 in a state in which the leg portion 10a of the luggage protecting frame 10 is inserted into the frame insertion portion provided on the upper surface portion of the projecting portion 7. 2 can be connected , and in this case, a large mounting object 16 is placed over a plurality of connected cart bodies 2 and provided on the upper surface portion of the projecting portion 7 on the short side of the adjacent cart body 2. It is possible to move in a state where the luggage is protected by the luggage protection frame 10, and it is possible to release the connection by removing the connecting member 17. Can be moved independently, and the short side portion of the upper cart body 2 can be moved to the upper surface of the projecting portion 7 of the lower cart body 2 when the cart body 2 is empty. The engaging recess 4a and the engaging protrusion By engaging with a, it is possible to prevent the upper cart body 2 from being laterally displaced with respect to the lower cart body 2 in a vertically stacked state. The fitting leg portion 18 of the connecting member 17 can be fitted using the engaging recess 4a for preventing.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below based on embodiments shown in the accompanying drawings.
As shown in FIGS. 1 to 4, the cart body 2 has a rectangular shape in plan view. As shown in FIG. 4, a caster 1 (a free caster on the front wheel side and a fixed caster on the rear wheel side or a free caster or a fixed caster for both front and rear wheels may be provided) is provided on the lower surface of the cart body 2 so as to be rotatable. is there. On both short sides of the main body 2 facing each other, a projecting portion 7 is integrally protruded upward along the short side, and the main body 2 with the projecting portion 7 protruding integrally is synthesized. It is made of resin. As shown in FIGS. 1, 2, 5, and 7, a bar stack engaged portion 4 is provided on the upper surface portion of the projecting portion 7, and in the embodiment shown in the accompanying drawings, the projecting portion 7. Engagement recesses 4a are provided at both ends of the upper surface part of the upper surface, and a recess is formed at the center of the upper surface part of the projecting part 7 to provide engagement recesses 4b. Reference numeral 4b is an engaged portion 4 for bar stacking. Also, holes 27 penetrating vertically are formed on the inner side slightly from the engaging recesses 4a at both ends of the projecting portion 7, as shown in FIG.
[0008]
In the figure, reference numeral 8 denotes a reinforcing base metal fitting, and as shown in FIG. 17 (a), a metal square frame-like frame insertion metal fitting 8b is fixed to both ends of the metal beam material 8a. As shown in FIG. 4, the beam member 8a is fitted into the groove 9 formed in the lower surface of the carriage body 2 in parallel with the long side, and a rectangular tube-shaped frame insertion fitting 8b is provided on the projecting part 7. The reinforcing base fitting 8 is fixed to the cart body 2 by any fixing means. The reinforcing base bracket 8 is attached to the cart body 2 in this way to reinforce the cart body 2 made of synthetic resin, and the frame 10 described later is inserted into the square tube-shaped frame insertion bracket 8b. The frame 10 is inserted into the frame insertion portion for supporting the frame 10, and the frame 10 is supported by the frame insertion fitting 8b, which is the frame insertion portion, so that the frame 10 can be supported reliably and firmly. Become. Needless to say, if the frame 10 has a round cylindrical shape, the frame insertion fitting 8b has a round cylindrical shape as shown in FIG. Further, a corner protector 29 made of rubber is provided at a corner portion of the outer side surface portion of the cart body 2.
[0009]
A handle hole 26 having an elongated hole shape is formed on both long sides of the carriage main body 2. In this embodiment, the handle hole 26 constitutes the engaged portion 5 for cross stacking. ing. The handle hole 26 is formed in a size that allows a hand to be inserted, and the carriage main body 2 can be held and moved by putting the hand into the handle hole 26 and grasping it.
[0010]
As shown in FIG. 14, the cart body 2 can be stacked to mount the short side portion of the lower surface portion of the upper cart body 2 on the upper surface portion of the projecting portion 7 of the lower cart body 2. In this stacked state, the casters 1 of the upper cart body 2 are opposed to the upper surface of the lower cart body 2. That is, as shown in FIG. 4, the caster 1 is attached to substantially four corners of the lower surface portion of the carriage main body 2 at a position slightly shifted inward from the lower surface portion directly below the protruding base portion 7 of the carriage main body 2. As described above, the upper caster 1 is positioned between the projecting base portions 7 of the lower cart body 2 in a state where the cart main body 2 is stacked (in the embodiment shown in the accompanying drawings, the caster 1 is rotated). In this case, the caster 1 is positioned between the projecting portions 7 of the lower cart body 2 by setting the rotation axis of the caster 1 to be in a direction substantially parallel to the long side of the cart body 2). The caster 1 protrudes downward in such a manner that the upper caster 1 is in contact with the upper surface of the lower cart body 2 in a state where the cart main body 2 is stacked, or the upper caster 1 is from the upper surface of the lower cart body 2. It seems to be in a slightly floating state. Further, the casters 1 facing each other in the direction parallel to the long side of the carriage main body 2 are attached at positions that are separated by a distance longer than the length of the short side of the carriage main body 2.
[0011]
Both short sides of the lower surface of the carriage body 2 are provided with bar stacking engaging portions 3, respectively. In the embodiment shown in the accompanying drawings, as shown in FIG. 3 and FIG. Engagement projections 3a are provided at both ends, and an engagement projection 3b is provided at the center of the short side of the lower surface of the projection base 7, and the engagement projections 3a and 3b are provided. The bar stacking engagement portion 3 is configured. Therefore, in the rod-stacked state in which the short side portion of the upper cart body 2 is placed on the upper surface of the projecting portion 7 of the lower cart body 2, the engaging projection 3a is engaged with the engaging recess 4a, The mating protrusion 3b engages with the engagement recess 4b, and the upper carriage body 2 is securely joined in the vertical direction so as not to be laterally displaced with respect to the lower carriage body 2 so that stable stacking can be achieved. It is like that.
[0012]
By the way, as already described, since the casters 1 facing each other in the direction parallel to the long side of the carriage main body 2 are attached to each other at a distance longer than the length of the short side of the carriage main body 2, FIG. As shown in FIG. 3, the upper carriage body 2 is placed on the upper surface of the lower carriage body 2 in a state rotated by 90 ° in plan view, and the caster 1 on the lower surface of the upper carriage body 2 is placed on the lower side of the lower carriage body 2. The cross can be placed outside the side. In this cross-stacked state, the cross-engaging engagement portion 6 including a downward projecting portion for engaging with the cross-engaged engaged portion 5 constituting the handle hole 26 provided in the lower cart body 2. Is provided on the lower surface of the carriage body 2. For this reason, when the lower surface of the upper cart body 2 is placed on the upper surface of the lower cart body 2 and stacked, the handle body 26 of the lower cart body 2 has a cross-stack. Thus, the upper cart body 2 is securely joined in the vertical direction so as not to be laterally displaced with respect to the lower cart body 2 so that stable stacking can be performed. In addition, when this cross is stacked, two carts can be stacked low in bulk. And since the handle hole 26 used when holding the trolley | bogie main body 2 by hand is used also as a means for preventing the shift | offset | difference at the time of cross-stacking, a structure is simplified.
[0013]
Here, the length between the upper and lower cart bodies 2 is set to be equal to or greater than the thickness of the cart body 2 in a state where the cart bodies 2 are stacked. And by setting in this way, as shown in FIG. 16, the lower surface part of the 2nd-stage trolley body 2 is cross-stacked on the upper surface part of the 1st-stage trolley body 2, and further, the 1st-stage trolley It is possible to stick the third-stage carriage main body 2 on the protruding base portion 7 of the main body 2. By stacking as shown in FIG. 16 while alternately repeating cross-stacking and bar-stacking in this way, the bulkiness in the case of stacking can be reduced to about ½ compared to the case of bar-stacking alone. is there.
[0014]
In use of the transporting carriage having the above-described configuration, it is used by fitting the frame 10 to the frame insertion fitting 8b of the carriage body 2 and attaching it. The frame 10 has leg portions 10a projecting on both sides of the lower end portion. The leg portions 10a on both sides are fitted into a pair of frame insertion fittings 8b provided on the projecting portion 7, and the lower portion 13 of the frame 10 is projected. The frame 10 is projected on the projecting portion 7 by being placed on the platform 7. In this way, the frame 10 is erected on the projecting parts 7 on both sides. A placement object 16 is placed on the upper surface of the carriage body 2. Here, by installing the frame 10, it is possible to prevent the lateral displacement by the frame 10 even when the placement object 16 is stacked and placed in multiple stages and placed and the placement height increases. One end of the connecting rod 14 is rotatably attached to one frame 10, and the other end of the connecting rod 14 is detachably hooked to the hooking portion 15 of the other frame 10 to connect both frames 10. To do.
[0015]
Further, when using the transportation carriage, there are a case where it is used alone as shown in FIG. 9 and a case where a plurality of transportation carriages are connected and used as shown in FIGS. In other words, when the width of the passage through which the transportation carriage passes is narrow, the transportation carriage is moved alone, and when the width of the passage through which the transportation carriage passes is wide, a plurality of transportation carriages are connected. To make it happen.
[0016]
In order to connect a plurality of transporting carts, the carts are connected in parallel so that the long sides of adjacent cart bodies 2 are in contact with each other, and are arranged so that the short sides of adjacent cart bodies 2 are in contact with each other. In some cases, they are connected in a state of being installed.
FIG. 10 shows an embodiment in which the long sides of adjacent cart bodies 2 are connected in parallel so that the long sides are in contact with each other, and FIG. One embodiment in the case of connecting in a state where they are arranged so as to be in contact with each other is shown. In the embodiments shown in FIGS. 10 and 11, the cart main bodies 2 are connected to each other by using a connecting member 17 having an inverted U shape. In other words, the fitting body portions 2 on both sides of the connecting member 17 having an inverted U shape are fitted into the engaging recesses 4a formed by the recessed portions of the adjacent carriage body 2 so that the adjacent carriage main bodies 2 can be connected via the connecting members 17. To be connected. In this way, by connecting the cart main bodies 2 in a state where they are arranged side by side, it is possible to simultaneously move the casters 1 while rolling the casters 1 in a state where a plurality of the cart main bodies 2 on which the placing object 16 is placed are connected. It is also possible to place and move a large placing object 16 across a plurality of connected cart bodies 2. In these embodiments, the engaging recess 4a for preventing the side shake in the stacked state can be used to fit the fitting leg portion 18 of the connecting member 17, and the configuration can be simplified. It is.
[0017]
Further, FIG. 12 shows another embodiment in the case where the long sides of adjacent cart bodies 2 are connected in parallel so that the long sides are in contact with each other. In this embodiment, the two carriage main bodies 2 are respectively shortly attached to the frame insertion fittings 8b provided on the short side of the upper surface of the adjacent carriage main bodies 2 in a state where the main bodies 2 are arranged so that the long sides are adjacent to each other. The trolley bodies 2 are connected to each other by detachably fitting leg portions 10a provided on both sides of the frame 10 straddling along the side. In other words, in the present embodiment, the cart bodies 2 are connected to each other by using the luggage protection frame 10, and by using the luggage protection frame 10 as a connection means, a special connection dedicated to the connection is separately provided. A member is not required, and the number of parts can be reduced.
[0018]
Here, when the size of the pair of frame insertion fittings 8b is formed so that two leg portions 10a can be fitted side by side along the short side of the cart body 2, as shown in FIG. A pair of leg portions 10a at the lower end of the frame 10 is fitted on the inner half of the frame insertion fitting 8b provided on the upper surface of the projecting portion 7 along the short side of the carriage body 2 respectively. Of the frame insertion fitting 8b provided on the short side portion of the upper surface portion of the adjacent cart body 2 in a state where the cart body 2 is arranged so that the long sides are adjacent to each other. A pair of legs 10a at the lower end of another frame 10 is fitted into the outer half of each frame insertion fitting 8b adjacent to the adjacent cart body 2 side, and the adjacent cart bodies 2 are connected by the frame 10 It is. In this way, the frame 10 can be erected on each trolley body 2 and the frame 10 can be erected across the adjacent trolley bodies 2, so that the luggage protection by the frame 10 can be ensured.
[0019]
【The invention's effect】
In the invention according to claim 1 of the present invention, as described above, the projecting portion is provided so as to project upward on both opposing short sides of the cart body having a rectangular shape in plan view having casters on the lower surface side. The engaging recesses are provided at both ends of the upper surface of the projecting part, and the legs are suspended from both sides of the lower part of the luggage protection frame slightly inside the engaging recesses at both ends of the upper surface of the projecting part. the frame spigot for freely fitting the parts provided that makes it stick stacking provided an engagement protrusion that engages the engagement recess of the carriage body to the lower surface of the short sides of the carriage body, and, next Since the long sides of the matching trolley main bodies are adjacent to each other and the pedestal main bodies are connected to each other by detachably fitting the fitting legs hanging from both sides of the connecting member into the engagement concave portions of the adjacent trolley main bodies. The frame insertion part provided on the upper surface of the projecting part has a luggage protection frame. While inserting the leg portion of the arm, via a coupling member can easily be connected to the truck body together, carriage body adjacent with this case places a large mounting object over a plurality of carriage body coupled It is possible to move in a state where the load is protected by a load protection frame provided on the upper surface portion of the projecting portion on the short side of the side, and it is possible to release the connection by removing the connecting member. It can be easily connected and moved by connecting the main body of the carriage, etc., or it can be easily moved alone, and the form with the highest transport efficiency can be easily selected according to the passage width, By placing the short side of the upper carriage body on the upper surface of the lower carriage body with the carriage body empty, and engaging the engagement recess and engagement protrusion vertically The upper trolley body is the lower pedestal with the rods stacked It is possible to prevent lateral displacement with respect to the main body, and furthermore, it is possible to fit the fitting leg portion of the connecting member using the engagement concave portion for preventing the horizontal runout in the stacked state. The number of members can be reduced and the configuration can be simplified.
[Brief description of the drawings]
FIG. 1 is a perspective view of a transport cart according to the present invention.
FIG. 2 is a plan view of the above.
FIG. 3 is a bottom view of the same.
FIG. 4 is a perspective view of the same upside down state.
FIG. 5 is a cross-sectional view in a direction parallel to the long side.
FIG. 6 is a cross-sectional view of another portion in a direction parallel to the long side.
FIG. 7 is a cross-sectional view in a direction parallel to the short side.
FIG. 8 is a perspective view showing a state in which the frame is attached.
FIG. 9 is a perspective view of a state in which the placement object is placed.
FIG. 10 is a perspective view showing a state in which the same transportation cart is connected with long sides adjacent to each other.
FIG. 11 is a perspective view showing a state in which the same transportation cart is connected with the short sides adjacent to each other.
FIG. 12 is a perspective view showing another embodiment in which the same transport cart is connected with long sides adjacent to each other.
FIG. 13 is a perspective view showing still another embodiment in which the same transport cart is connected with long sides adjacent to each other.
FIG. 14 is a front view of the same stacked state.
FIGS. 15A and 15B show a crucifixed state, where FIG. 15A is a front view and FIG. 15B is a plan view;
FIGS. 16A and 16B show a state in which the same cross stacks and bar stacks are alternately stacked in the vertical direction, wherein FIG. 16A is a front view and FIG. 16B is a plan view.
17 (a) is a perspective view of a reinforcing base fitting used in the present invention, and FIG. 17 (b) is a perspective view of another example of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Caster 2 Carriage body 3a Engagement protrusion 4a Engagement recessed part 7 Projection part 8b Frame insertion part 10 Frame 10a Leg part 17 Connecting member 18 Insertion leg part

Claims (1)

下面側にキャスタを有する平面視長方形状をした台車本体の対向する両短辺に上方に向けて突台部を突設し、突台部の上面部の両端部に係合凹部を設けると共に、突台部の上面の両端部の係合凹部よりもやや内側に荷物保護用のフレームの下部両側部に垂設した脚部を嵌め込み自在とするためのフレーム差込み部を設け、台車本体の係合凹部に係合する係合突部を台車本体の短辺部の下面部に設けることにより棒積みができ、且つ、隣合う台車本体の長辺同士を隣接させると共に連結部材の両側部に垂下した嵌め込み用脚部をそれぞれ隣接する台車本体の係合凹部に着脱自在に嵌め込んで台車本体同士を連結して成ることを特徴とする運搬用台車の連結構造。 Protruding parts projecting upward on both opposing short sides of the cart body having a rectangular shape in plan view having casters on the lower surface side, and providing engagement recesses at both ends of the upper surface part of the projecting part, A frame insertion part is provided on the inside of the upper part of the upper part of the projecting part so that it can be fitted with legs that are suspended from both sides of the lower part of the luggage protection frame. Bars can be stacked by providing engaging projections that engage the recesses on the bottom surface of the short side of the cart body , and the long sides of adjacent cart bodies are adjacent to each other and suspended from both sides of the connecting member. A connecting structure for a transporting carriage , wherein the mounting leg parts are detachably fitted into engaging recesses of adjacent cart bodies and the cart bodies are connected to each other .
JP16460997A 1997-06-20 1997-06-20 Transportation cart connection structure Expired - Lifetime JP3857783B2 (en)

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Publication number Priority date Publication date Assignee Title
JP3868276B2 (en) * 2001-11-29 2007-01-17 新明産業株式会社 Handcart
JP5349934B2 (en) * 2008-12-09 2013-11-20 三甲株式会社 Method of cross-stacking carts and carts used in the method
JP5473120B2 (en) * 2009-09-30 2014-04-16 ダイハツ工業株式会社 Dolly and chip collection system using dolly
CN104442973B (en) * 2014-11-24 2016-08-24 南通宝田包装科技有限公司 A kind of material dolly bindiny mechanism
JP6496379B1 (en) * 2017-10-10 2019-04-03 物産ロジスティクスソリューションズ株式会社 Article transfer method and transport cart
JP7330506B2 (en) * 2019-12-12 2023-08-22 河淳株式会社 trolley system

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