JP3884305B2 - Loading platform lifting device - Google Patents

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Publication number
JP3884305B2
JP3884305B2 JP2002059660A JP2002059660A JP3884305B2 JP 3884305 B2 JP3884305 B2 JP 3884305B2 JP 2002059660 A JP2002059660 A JP 2002059660A JP 2002059660 A JP2002059660 A JP 2002059660A JP 3884305 B2 JP3884305 B2 JP 3884305B2
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Japan
Prior art keywords
load receiving
load
end side
slider
lifting device
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JP2002059660A
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Japanese (ja)
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JP2003252106A (en
Inventor
民夫 山中
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Shinmaywa Industries Ltd
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Shinmaywa Industries Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、荷箱に立設した左右一対の支柱に沿って荷受台を昇降自在に設けた荷受台昇降装置に関するものである。
【0002】
【従来の技術】
図8は、従来の荷受台昇降装置を示している。
【0003】
荷受台昇降装置aは、車輌の荷箱bの後端に立設された左右一対の支柱cと、該支柱c内に昇降自在にそれぞれ挿入されたスライダ(図示省略)と、左右のスライダの下端部にブラケットdを介して支持された荷受台eと、各スライダにそれぞれワイヤfを介して連結された昇降シリンダgとから構成されている。
【0004】
上記昇降シリンダgは、支柱c間に配設されたクロスメンバーh内に配置されており、この昇降シリンダgの伸縮作動によりワイヤfを繰り出しもしくは引き込むことによりスライダを昇降作動させ、当該スライダにブラケットを介して連結された荷受台eを地上と荷箱bの床面との間で昇降作動させている。
【0005】
そして、このように昇降作動する荷受台eは、スライダに対して水平方向にスライド自在に支持されており、このスライド動作によって荷箱bの後部下方の格納位置に格納するように構成されている。
【0006】
【発明が解決しようとする課題】
しかしながら、上記従来のように車輌に搭載された荷受台昇降装置においては、車輌の後部にテールランプi及びナンバープレートjを取付ける必要があり、これらテールランプi及びナンバープレートjは、その構造上クロスメンバーhの下方に設けていた。
【0007】
従って、テールランプi及びナンバープレートjがクロスメンバーhから下方に突出した分、荷箱bの後部下方に格納する荷受台eとの干渉を避けるために当該荷受台eの地上高さが低くなるという問題があった。
【0008】
また、一枚ものの荷受台eをそのままの状態で格納する場合には、荷箱bの後部下方にその分だけの格納前後スペースが必要になるため、小型トラックなど前後方向の格納スペースが小さい車輌への取付けに制約を受けていた。そして、このような前後方向の格納スペースが小さい車輌へ取付ける場合には、荷受台eを前後に例えば二つ折りすれば前後方向の格納スペースを小さくすることができる。しかし、上述したようにテールランプi及びナンバープレートjがクロスメンバーhから下方に突出しているため、荷受台eを二つ折りにするとさらに地上高さが低くなり、走行時などに干渉する危険が大きく、結局はこのような車輌には取付けることができないという問題があった。
【0009】
本発明は、上記問題点に鑑みてなされたもので、その目的とするところは、地上高さを確保した上でしかも前後方向の格納スペースを小さくすることができ、小型車輌などに取付ける際の制約緩和を図ることのできる荷受台昇降装置を提供することにある。
【0010】
【課題を解決するための手段】
請求項1に係る発明の荷受台昇降装置は、車輌の荷箱に立設された左右一対の支柱に沿って荷受台が昇降自在に設けられるとともに、荷箱の下方に格納可能に設けられた荷受台昇降装置において、前記荷受台が前後に少なくとも2つ折り自在になされ、該荷受台が折り畳まれた状態のまま荷箱の下方に水平移動することで格納されるように構成されたものである。
【0011】
請求項2に係る発明の荷受台昇降装置は、前記左右一対の支柱間に配設されたクロスメンバーに荷受台の昇降駆動源である昇降シリンダが組み込まれるとともに、その後面部にテールランプ及びナンバープレートが埋設配置されたものである。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。
【0013】
図1は、本発明の荷受台昇降装置を示している。
【0014】
荷受台昇降装置1は、車輌の荷箱2の後端に立設された左右一対の支柱3と、該支柱3内に昇降自在にそれぞれ挿入されたスライダ4(図2参照)と、左右のスライダ4の下端部に支持された荷受台5と、各スライダ4にそれぞれワイヤ6を介して連結された昇降シリンダ7とから構成されている。
【0015】
具体的には、支柱3は、横断面が矩形状で中空の長尺体からなり、この内部にスライダ4が配置されている。
【0016】
スライダ4は、その上端部及び途中部に図示しない昇降ローラが複数設けられ、これら昇降ローラによってスライダ4の昇降移動を円滑に行なうようにしている。
【0017】
そして、これら左右のスライダ4の上端部には各ワイヤ6の一端部がそれぞれ止着されている。ワイヤ6は、スライダ4から上方に導かれ、支柱3の上部に設けられたシーブ33によって下方に折り返されて前部側を下方に導かれた後、支柱3の下部からシーブ(図示省略)を経て昇降シリンダ7に導かれ、他端が適宜に止着されている。
【0018】
昇降シリンダ7は、図1及び図2に示すように支柱3間に配設されたクロスメンバー8内の前部に配置されており、この昇降シリンダ7の伸縮作動により上述のように配置されたワイヤ6を支柱3に繰り出し、もしくは支柱3から引き込むことによりスライダ4を昇降作動させるようにしている。
【0019】
従って、前述したように昇降シリンダ7によりスライダ4を昇降作動させることで、当該スライダ4に連結された荷受台5を地上と荷箱2の床面との間で昇降作動させることができる。
【0020】
一方、前記クロスメンバー8には、図2に示すようにその後面部にテールランプ91及びナンバープレート92が埋設配置されている。具体的には、クロスメンバー8は、前記昇降シリンダ7を収容する前側収容部81と、テールランプ91及びナンバープレート92を収容する後側収容部82とに仕切壁83で前後約半分に区画されている。
【0021】
後側収容部82は、既存のクロスメンバー8の後面を切欠き、昇降シリンダ7を収容した前側部分と仕切壁83で仕切ることによって形成されており、図3に示すように後側収容部82内の両側にテールランプ91を配設するとともに、その中央部にナンバープレート92を配設している。つまり、従来では空間部になっているものの使用されていなかったクロスメンバー8内の後部スペースを有効に利用している。これにより、従来ではクロスメンバー8の下部に設けていたテールランプ91及びナンバープレート92を、クロスメンバー8内に収容した分だけテールランプ91及びナンバープレート92の高さ位置を高く確保できる。
【0022】
なお、前記仕切壁83は必ずしも必要でなく、必要に応じて補強部材などをクロスメンバー8内に配設して仕切壁83を無くした構造であってもよい。
【0023】
荷受台5は、前後2つに分割された基端側荷受部材51と先端側荷受部材52とを備え、基端側荷受部材51と先端側荷受部材52とはヒンジ53を介して回動自在に連結されており、先端側荷受部材52が基端側荷受部材51の上面に2つ折り自在に構成されている。
【0024】
基端側荷受部材51は、図4及び図5に示すように前記先端側荷受部材52とともにその上面に荷物を載置する荷受本体部54と、荷受本体部54の両側に設けられ前記スライダ4に支持される支持部55とが連結部材56を介して連結されてなり、これら荷受本体部54と支持部55との取付構造は以下のようになっている。
【0025】
連結部材56は、荷受本体部54の両側と支持部55との間に介装される平板状の固定部56aと、この固定部56aの上端全体に亘って下向きコ字状に形成された引掛け部56bとから構成されている。そして、荷受本体部54と連結部材56(固定部56a)とが溶接等の手段で強固に連結されている。
【0026】
従って、引掛け部56bを支持部55の上端部に上方から嵌入支持した状態で、上記荷受本体部54と支持部55とを固定部56aを介して固定ボルト57によって適数箇所を締結することで、荷受本体部54と支持部55とを一体的に固定して基端側荷受部材51を構成している。
【0027】
つまり、引掛け部56bで支持部55の上端部を抱え込んで支持した連結部材56を介して荷受本体部54の両側と支持部55とを固定ボルト57によって固定しているので、当該連結部材56の作用によって固定ボルト57による固定箇所を少なくしても十分な固定強度を得ることができる。
【0028】
このように基端側荷受部材51を構成することで、荷受本体部54及び連結部材56をアルミ製にして、支持部55をスチール製にしても、荷受本体部54と支持部55とを十分な強度で一体化することができる。しかもスライダ4との結合部分であり最も負荷がかかる支持部55をスチール製にしているので、荷受台5の剛性強度を十分に確保することができるとともに、軽量化を図ることができる。そして、先端側荷受部材52も荷受本体部54と同様にアルミ製とすることで、荷受台5全体の軽量化をさらに図ることができる。
【0029】
前記支持部55は、図2及び図6に示すようにその外側面にガイド溝55aが前後方向に形成される一方、各スライダ4の下端部からブラケット41が支柱3の後方に突出配置されており、このブラケット41の下端部に設けられた第1ガイドローラ42が上記ガイド溝55aに転動自在に配置されている。ブラケット41は、支柱3の後面31に上下方向に形成された切欠溝32(図1参照)を挿通して支柱3から後方に突出配置されている。
【0030】
また、スライダ4の下端に設けられた当接ローラ43は、荷受台5を後述する格納位置(図2参照)から後方にスライドさせて当該後方に突出配置される作業位置(図6参照)に配置した際には支持部55の基端部を支持しており、これにより前記第1ガイドローラ42による下方からの支持と相まって荷受台5を水平状態で保持するようにしている。この際、第1ガイドローラ42はガイド溝55aの前方終端位置に配置されている。
【0031】
さらに、支持部55の基端部には図示しないが第2ガイドローラが設けられている。第2ガイドローラは、荷箱2の後部下方に設けられた左右一対のスライドレール21に沿って前後に転動自在に設けられており、この第2ガイドローラを通じて荷受台5がスライドレール21に沿って円滑に移動できるようにしている。
【0032】
このように構成された荷受台5は、折り畳んだ状態でスライドレール21の前端部にスライドさせて荷箱2の後部下方に格納する図2に示す格納位置Aと、スライドレール21の後方にスライドさせて折り畳んだ先端側荷受部材52を基端側荷受部材52の延長上に水平に展開して地上と荷箱2の床面との間で昇降作動させる図6に示す作業位置Bとに配置することができる。
【0033】
ところで、荷受台5とスライダ4との間には、図7に示す同調機構10が設けられている。同調機構10は、上述のように格納位置Aと作業位置Bとの間で荷受台5を左右のスライドレール21に沿って円滑にスライドさせるためのもので、荷受台5の押し引きそれぞれに作用する2組の同調ワイヤ11、12で構成されており、各同調ワイヤ11、12は以下のように張設されている。
【0034】
一方の同調ワイヤ11は、その一端が図7において上側となる一方のスライダ4に連結された取付部材45に止着され、途中部が前方(図7における左方)に導かれた後、前記基端側荷受部材51の基端一側部(図7における上側)に設けられたシーブ13に巻回されて後方に折り返され、前記基端側荷受部材51の先端側に導かれた後に当該基端側荷受部材51の先端寄り一側部に設けられたシーブ14に巻回されて基端側荷受部材51の他側部((図7における下側)に導かれ、この他側部に設けられたシーブ15に巻回され、他端が他方のスライダ4の取付部材46に止着されている。
【0035】
他方の同調ワイヤ12は、その一端が図7において下側となる他方のスライダ4に連結された取付部材46に止着され、途中部が前方(図7における左方)に導かれた後、前記基端側荷受部材51の基端他側部(図7における下側)に設けられたシーブ16に巻回されて後方に折り返され、前記基端側荷受部材51の先端側に導かれた後に当該基端側荷受部材51の先端寄り他側部に設けられたシーブ17に巻回されて基端側荷受部材51の一側部(図7における上側)に導かれ、この一側部に設けられたシーブ18に巻回され、他端が一方のスライダ4の取付部材45に止着されている。
【0036】
上述した同調ワイヤ11、12及び各シーブ13乃至18は、例えば基端側荷受部材51の底面空間部を利用して配置されている。
【0037】
さらに、前記支柱3の後面31には、カバー材Cが連設されている。カバー材Cは、支柱3の後面31から後方に突出配置されたブラケット41を被覆するためのもので、支柱3の左右の横幅と同じ横幅を有するとともに、ブラケット41の突出長さと略同じ前後幅を有する横断面矩形状の中空長尺体に形成されている。つまり、カバー材Cは各支柱3の後方延長上にこの支柱3と一体化した形で配置されている。このカバー材Cの後面には、スライダ4の昇降動作に伴うブラケット41の上下移動を許容するための切欠溝C1が形成されている。
【0038】
このようにカバー材Cにより支柱3から突出したブラケット41を内部に被覆することで、ブラケット41を損傷などから保護するとともに、装置全体の外観をスッキリとさせることができ、意匠性の向上を図ることができる。
【0039】
次に、このように構成された荷受台昇降装置1の動作について説明する。
【0040】
図2に示すように荷受台5が格納位置Aに配置された状態において、作業者がまず荷受台5を荷箱2の後方に引き出す。これにより荷受台5は、基端側荷受部材51の基端に設けられた第2ガイドローラがスライドレール21に沿って移動するとともに、第1ガイドローラ42がガイド溝55aに沿って移動することで、荷箱2の後方に突出する作業位置Bに配置される。
【0041】
このようにして荷受台5を格納位置Aから作業位置Bにスライドさせる際において、荷受台5の両側部は同調機構10を構成する2組の同調ワイヤ11、12の作用によりガイドレール21対して前後にずれることなく、左右で同調しながらスライドすることになる。これにより荷受台5を第1ガイドローラ42及び第2ガイドローラを通じてスムーズにスライドさせることができる。
【0042】
次に、この作業位置Bにおいて折り畳まれた荷受台5の先端側荷受部材52を後方に回動させて基端側荷受部材51と先端側荷受部材52とが水平になるように展開する。この後、昇降シリンダ7を伸縮作動させてワイヤ6を通じてスライダ4を支柱3に沿って昇降作動させることで、このスライダ4に連結された荷受台5を地上と荷箱2の床面との間で昇降作動させ、これによって荷受台5を通じて地上と荷箱2との間で荷物の積卸し作業を行う。
【0043】
そして、荷物の積卸し作業が終了すると、前述した動作と逆の動作により荷受台5を折り畳んで、荷箱2の後方から荷箱2の後部下方に押し込むことで格納位置Aに配置する。この際も、同調機構10により荷受台5を第1ガイドローラ42及び第2ガイドローラを通じてスムーズにスライドさせて格納位置Aに配置することができる。
【0044】
このように荷受台5を前後2つに折り畳んだ状態で荷箱2の後部下方に格納することで、荷受台5を格納するための荷箱2の後部下方の前後の格納スペースを当該荷受台5を折り畳んだ分だけ小さくすることができる。このため、上記格納スペースの縮小により従来ではスペース上の制約を受けて取付けることのできなかった、小型のトラックにも取付けが可能になる。
【0045】
また、クロスメンバー8の後面にテールランプ91及びナンバープレート92を埋設して、テールランプ91及びナンバープレート92の高さ位置を高くしているので、この分だけ荷受台5の折り畳みにより当該荷受台5の上下幅が厚くなってもこの厚みを吸収することができ、これにより格納時における荷受台5の地上高さを従来以上に確保することができる。
【0046】
なお、本実施の形態では、荷受台5を二つ折りに構成したものに付いて説明したが、荷受台5は2つ折りに限らず、3つ折りもしくはそれ以上に折り畳むように構成してもよい。
【0047】
【発明の効果】
以上述べたように、本発明の荷受台昇降装置によれば、荷受台を前後に少なくとも2つ折り自在に構成し、該荷受台を折り畳んだ状態で荷箱の下方に水平移動させて格納するように構成したことにより、この荷受台を格納するための荷箱の後部下方の前後の格納スペースを当該荷受台を折り畳んだ分だけ小さくすることができる。このため、上記格納スペースの縮小により従来ではスペース上の制約を受けて取付けることのできなかった、小型のトラックにも取付けが可能になる。
【0048】
また、左右一対の支柱間に配設されたクロスメンバーの後面部に、テールランプ及びナンバープレートを埋設配置したことで、従来のようにクロスメンバーの下方に設けたものに比べて荷箱の後部下方に格納する荷受台の地上高さを高くすることができる。
【図面の簡単な説明】
【図1】本発明の荷受台昇降装置を示す斜視図である。
【図2】格納位置に配置された荷受台昇降装置を示す一部断面の側面図である。
【図3】格納位置に配置された荷受台昇降装置を示す正面図である。
【図4】基端側荷受部材の構造を示す正面図である。
【図5】荷受台を示す平面図である。
【図6】作業位置に配置された荷受台昇降装置を示す一部断面の側面図である。
【図7】同調機構の構成を示す概略図である。
【図8】従来の荷受台昇降装置を示す斜視図である。
【符号の説明】
1 荷受台昇降装置
2 荷箱
3 支柱
5 荷受台
51 基端側荷受部材
52 先端側荷受部材
8 クロスメンバー
91 テールランプ
92 ナンバープレート
A 格納位置
B 作業位置
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a load receiving table lifting device provided with a load receiving table that can be moved up and down along a pair of left and right columns that are erected on a packing box.
[0002]
[Prior art]
FIG. 8 shows a conventional cargo receiving table lifting device.
[0003]
The load receiving table elevating device a includes a pair of left and right columns c standing at the rear end of the vehicle cargo box b, sliders (not shown) inserted in the columns c so as to be movable up and down, and left and right sliders. It is comprised from the load receiving stand e supported by the lower end part via the bracket d, and the raising / lowering cylinder g connected with each slider via the wire f, respectively.
[0004]
The elevating cylinder g is disposed in a cross member h disposed between the columns c, and the slider f is moved up and down by extending or retracting the wire f by the elongating and retracting operation of the elevating cylinder g. The load receiving table e connected via the lift is moved up and down between the ground and the floor surface of the packing box b.
[0005]
The load receiving table e that moves up and down in this way is supported so as to be slidable in the horizontal direction with respect to the slider, and is configured to be stored in a storage position below the rear portion of the load box b by this sliding operation. .
[0006]
[Problems to be solved by the invention]
However, in the conventional load receiving device lifting apparatus mounted on the vehicle as described above, it is necessary to attach the tail lamp i and the license plate j to the rear part of the vehicle. The tail lamp i and the license plate j are structurally cross members h. It was provided below.
[0007]
Accordingly, the amount of the tail lamp i and the license plate j projecting downward from the cross member h is lowered to avoid the interference with the load receiving base e stored below the rear part of the cargo box b. There was a problem.
[0008]
Further, when storing a single cargo receiving stand e as it is, a space before and after storage corresponding to the lower portion of the rear part of the packing box b is required, so a vehicle having a small storage space in the front-rear direction such as a small truck. There were restrictions on installation. And when attaching to such a vehicle with a small storage space in the front-rear direction, the storage space in the front-rear direction can be reduced by folding, for example, the load receiving base e in the front-rear direction. However, as described above, since the tail lamp i and the license plate j protrude downward from the cross member h, if the load receiving base e is folded in half, the ground height is further reduced, and there is a greater risk of interference during traveling, Eventually, there was a problem that it could not be attached to such a vehicle.
[0009]
The present invention has been made in view of the above-mentioned problems, and its object is to secure the ground height and to reduce the storage space in the front-rear direction, and to attach to a small vehicle or the like. An object of the present invention is to provide a load receiving table lifting / lowering device capable of relaxing constraints.
[0010]
[Means for Solving the Problems]
According to a first aspect of the present invention, the load receiving platform lifting device is provided so that the load receiving platform can be moved up and down along a pair of left and right columns that are erected on the load box of the vehicle, and can be stored below the load box. In the load receiving platform lifting / lowering device, the load receiving platform is configured to be foldable at least in the front and rear, and is configured to be stored by horizontally moving below the load box while the load receiving table is folded. .
[0011]
According to a second aspect of the present invention, there is provided a load receiving table lifting device in which a lifting cylinder as a lifting drive source of the load receiving table is incorporated in a cross member disposed between the pair of left and right columns, and a tail lamp and a license plate are provided on a rear surface portion thereof. It is buried .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 shows a load receiving table lifting device of the present invention.
[0014]
The load receiving platform lifting / lowering device 1 includes a pair of left and right support columns 3 erected at the rear end of a cargo box 2 of a vehicle, sliders 4 (see FIG. 2) inserted into the support columns 3 so as to be movable up and down, and left and right It is comprised from the load receiving stand 5 supported by the lower end part of the slider 4, and the raising / lowering cylinder 7 connected with each slider 4 via the wire 6, respectively.
[0015]
Specifically, the support column 3 is formed of a hollow long body having a rectangular cross section, and the slider 4 is disposed therein.
[0016]
The slider 4 is provided with a plurality of elevating rollers (not shown) at the upper end portion and the middle portion thereof, and the elevating movement of the slider 4 is smoothly performed by these elevating rollers.
[0017]
One end of each wire 6 is fixed to the upper end of the left and right sliders 4. Wire 6 is guided from the slider 4 upward, after being led front side downward folded downward by sieve 33 provided in the upper portion of the column 3, the sheave from the bottom of the standoff 3 (not shown) And the other end is appropriately fixed.
[0018]
As shown in FIGS. 1 and 2, the elevating cylinder 7 is arranged at the front portion in the cross member 8 arranged between the support columns 3, and is arranged as described above by the expansion and contraction operation of the elevating cylinder 7. The slider 4 is moved up and down by feeding the wire 6 to the column 3 or drawing it from the column 3.
[0019]
Therefore, as described above, by moving the slider 4 up and down by the lifting cylinder 7, the load receiving platform 5 connected to the slider 4 can be moved up and down between the ground and the floor surface of the cargo box 2.
[0020]
On the other hand, as shown in FIG. 2, a tail lamp 91 and a number plate 92 are embedded in the cross member 8 in the rear surface portion. Specifically, the cross member 8 is partitioned by a partition wall 83 into a front and rear half about a front side accommodating part 81 that accommodates the elevating cylinder 7 and a rear side accommodating part 82 that accommodates the tail lamp 91 and the number plate 92. Yes.
[0021]
The rear housing part 82 is formed by notching the rear surface of the existing cross member 8 and partitioning it with a front wall part containing the elevating cylinder 7 and a partition wall 83, as shown in FIG. A tail lamp 91 is disposed on both sides of the interior, and a number plate 92 is disposed in the center thereof. That is, the rear space in the cross member 8 that has been a space portion but has not been used in the past is effectively used. As a result, the tail lamp 91 and the number plate 92 that are conventionally provided in the lower portion of the cross member 8 can be secured at a higher height by the amount accommodated in the cross member 8.
[0022]
The partition wall 83 is not necessarily required, and a structure in which a reinforcing member or the like is provided in the cross member 8 as necessary to eliminate the partition wall 83 may be used.
[0023]
The load receiving platform 5 includes a proximal end side load receiving member 51 and a distal end side load receiving member 52 that are divided into two parts, front and rear, and the proximal end side load receiving member 51 and the distal end side load receiving member 52 are rotatable via a hinge 53. The distal end side load receiving member 52 is configured to be folded in two on the upper surface of the proximal end side load receiving member 51.
[0024]
As shown in FIGS. 4 and 5, the base-end side load receiving member 51 is provided on both sides of the load receiving main body portion 54 and the load receiving main body portion 54 for placing the load on the upper surface thereof together with the distal end side load receiving member 52. And a support portion 55 supported by the connecting member 56 via a connecting member 56. The attachment structure of the cargo receiving body portion 54 and the support portion 55 is as follows.
[0025]
The connecting member 56 includes a flat plate-like fixing portion 56a interposed between both sides of the cargo receiving body portion 54 and the support portion 55, and a pulling formed in a downward U shape over the entire upper end of the fixing portion 56a. It is comprised from the hanging part 56b. And the cargo receiving main-body part 54 and the connection member 56 (fixed part 56a) are firmly connected by means, such as welding.
[0026]
Accordingly, in a state where the hooking portion 56b is fitted and supported on the upper end portion of the support portion 55 from above, the load receiving main body portion 54 and the support portion 55 are fastened at appropriate positions by the fixing bolt 57 via the fixing portion 56a. Thus, the base end side load receiving member 51 is configured by integrally fixing the load receiving main body portion 54 and the support portion 55.
[0027]
That is, both the sides of the load receiving main body 54 and the support portion 55 are fixed by the fixing bolts 57 via the connection member 56 that holds and supports the upper end portion of the support portion 55 by the hook portion 56b. Due to the above, sufficient fixing strength can be obtained even if the number of fixing points by the fixing bolt 57 is reduced.
[0028]
By configuring the base end side load receiving member 51 in this way, the load receiving main body portion 54 and the support portion 55 can be sufficiently provided even if the load receiving main body portion 54 and the connecting member 56 are made of aluminum and the support portion 55 is made of steel. It can be integrated with sufficient strength. In addition, since the support portion 55 that is the coupling portion with the slider 4 and to which the load is most applied is made of steel, the rigidity strength of the load receiving platform 5 can be sufficiently secured and the weight can be reduced. Further, the tip side load receiving member 52 is also made of aluminum in the same manner as the load receiving main body 54, so that the weight of the entire load receiving platform 5 can be further reduced.
[0029]
As shown in FIGS. 2 and 6, the support portion 55 has a guide groove 55 a formed in the front-rear direction on the outer surface thereof, and a bracket 41 is disposed to protrude from the lower end portion of each slider 4 to the rear of the column 3. A first guide roller 42 provided at the lower end of the bracket 41 is disposed in the guide groove 55a so as to roll freely. The bracket 41 is disposed so as to protrude rearward from the column 3 through a notch groove 32 (see FIG. 1) formed in the vertical direction on the rear surface 31 of the column 3.
[0030]
The contact roller 43 provided at the lower end of the slider 4 is slid rearward from a storage position (see FIG. 2), which will be described later, to a work position (see FIG. 6) where it protrudes rearward. When arranged, the base end portion of the support portion 55 is supported, and the load receiving platform 5 is held in a horizontal state in combination with the support from below by the first guide roller 42. At this time, the first guide roller 42 is disposed at the front end position of the guide groove 55a.
[0031]
Further, a second guide roller is provided at the base end portion of the support portion 55 (not shown). The second guide roller is provided so as to be able to roll back and forth along a pair of left and right slide rails 21 provided below the rear part of the cargo box 2, and the load receiving platform 5 is attached to the slide rail 21 through the second guide rollers. It is possible to move smoothly along.
[0032]
The load receiving platform 5 configured in this manner is slid to the front end portion of the slide rail 21 in a folded state and is stored below the rear portion of the load box 2, and slides to the rear of the slide rail 21. The front-end side load receiving member 52 folded and folded is horizontally deployed on the extension of the base-end side load receiving member 52 and is moved up and down between the ground and the floor surface of the load box 2 and arranged at a work position B shown in FIG. can do.
[0033]
Incidentally, a tuning mechanism 10 shown in FIG. 7 is provided between the load receiving platform 5 and the slider 4. The tuning mechanism 10 is for smoothly sliding the load receiving platform 5 along the left and right slide rails 21 between the storage position A and the work position B as described above. The tuning wires 11 and 12 are composed of two sets of tuning wires 11 and 12, and the tuning wires 11 and 12 are stretched as follows.
[0034]
One tuning wire 11 is fixed to a mounting member 45 connected to one slider 4 on the upper side in FIG. 7 and the middle part thereof is guided forward (to the left in FIG. 7). After being wound around a sheave 13 provided on one side of the base end side load receiving member 51 (upper side in FIG. 7), folded back, and guided to the front end side of the base end side load receiving member 51 It is wound around a sheave 14 provided on one side near the distal end of the base end side load receiving member 51 and guided to the other side portion (lower side in FIG. 7) of the base end side load receiving member 51. It is wound around the provided sheave 15 and the other end is fixed to the mounting member 46 of the other slider 4.
[0035]
One end of the other tuning wire 12 is fixed to the mounting member 46 connected to the other slider 4 on the lower side in FIG. 7, and the middle part is guided forward (left side in FIG. 7), The base end side load receiving member 51 is wound around a sheave 16 provided on the other end portion of the base end (lower side in FIG. 7), folded back, and guided to the front end side of the base end side load receiving member 51. Later, the base end side load receiving member 51 is wound around the sheave 17 provided on the other side near the front end and guided to one side portion (upper side in FIG. 7) of the base end side load receiving member 51. It is wound around a provided sheave 18 and the other end is fixed to an attachment member 45 of one slider 4.
[0036]
The above-described tuning wires 11 and 12 and the sheaves 13 to 18 are arranged using, for example, the bottom space portion of the base-end side cargo receiving member 51.
[0037]
Further, a cover material C is connected to the rear surface 31 of the support column 3. The cover material C is used to cover the bracket 41 that protrudes rearward from the rear surface 31 of the support column 3. The cover material C has the same lateral width as the lateral width of the support column 3, and substantially the same longitudinal width as the projecting length of the bracket 41. It is formed in a hollow long body having a rectangular cross section. That is, the cover material C is disposed on the rear extension of each column 3 so as to be integrated with the column 3. On the rear surface of the cover material C, a notch groove C1 is formed for allowing the bracket 41 to move up and down as the slider 4 moves up and down.
[0038]
By covering the bracket 41 protruding from the support column 3 with the cover material C in this way, the bracket 41 can be protected from damage and the like, and the overall appearance of the apparatus can be refreshed, thereby improving the design. be able to.
[0039]
Next, operation | movement of the load receiving table raising / lowering apparatus 1 comprised in this way is demonstrated.
[0040]
As shown in FIG. 2, in a state where the load receiving platform 5 is disposed at the storage position A, the operator first pulls the load receiving platform 5 to the rear of the load box 2. Thereby, in the load receiving platform 5, the second guide roller provided at the base end of the base end side load receiving member 51 moves along the slide rail 21, and the first guide roller 42 moves along the guide groove 55a. Thus, it is arranged at the work position B protruding rearward of the packing box 2.
[0041]
When the load receiving platform 5 is slid from the storage position A to the working position B in this manner, both sides of the load receiving platform 5 are moved against the guide rail 21 by the action of the two sets of tuning wires 11 and 12 constituting the tuning mechanism 10. It slides in synchronization with the left and right without shifting back and forth. Thereby, the load receiving stand 5 can be smoothly slid through the first guide roller 42 and the second guide roller.
[0042]
Next, the front end side load receiving member 52 of the load receiving platform 5 folded at the work position B is rotated rearward so that the proximal end side load receiving member 51 and the front end side load receiving member 52 are deployed horizontally. Thereafter, the lifting cylinder 7 is expanded and contracted, and the slider 4 is moved up and down along the support column 3 through the wire 6, so that the load receiving platform 5 connected to the slider 4 is placed between the ground and the floor surface of the packing box 2. Thus, the cargo is loaded and unloaded between the ground and the cargo box 2 through the cargo receiving platform 5.
[0043]
When the cargo loading / unloading operation is completed, the cargo receiving platform 5 is folded by the operation reverse to the above-described operation, and the bag is placed in the storage position A by being pushed downward from the rear of the cargo box 2. Also at this time, the receiving mechanism 5 can be smoothly slid through the first guide roller 42 and the second guide roller and placed in the storage position A by the synchronization mechanism 10.
[0044]
By storing the load receiving platform 5 in the front and rear two in the folded state in the front and rear in this manner, the storage space before and after the rear lower portion of the load box 2 for storing the load receiving platform 5 is stored. 5 can be reduced by the amount of folding. For this reason, due to the reduction of the storage space, it is possible to mount on a small truck that could not be mounted due to space limitations.
[0045]
Further, since the tail lamp 91 and the number plate 92 are embedded in the rear surface of the cross member 8 and the height positions of the tail lamp 91 and the number plate 92 are increased, the load receiving base 5 is folded by this amount. Even when the vertical width is increased, this thickness can be absorbed, and thereby the ground height of the load receiving platform 5 at the time of storage can be ensured more than before.
[0046]
Although the present embodiment has been described with reference to a case in which the load receiving platform 5 is configured to be folded in two, the load receiving platform 5 is not limited to being folded in two, and may be configured to be folded in three or more.
[0047]
【The invention's effect】
As described above, according to the load receiving table lifting apparatus of the present invention, the load receiving stand is configured to be foldable at least two in the front and rear, and is stored in the state that the load receiving stand is folded and horizontally moved under the load box. With this configuration, the front and rear storage spaces below the rear part of the packing box for storing the load receiving table can be reduced by the amount of folding of the load receiving table. For this reason, due to the reduction of the storage space, it is possible to mount on a small truck that could not be mounted due to space limitations.
[0048]
In addition, the tail lamp and number plate are embedded in the rear surface of the cross member disposed between the pair of left and right columns, so that the rear lower part of the cargo box is lower than that provided under the cross member as in the past. It is possible to increase the ground height of the receiving stand that is stored in the container.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a load receiving table lifting device of the present invention.
FIG. 2 is a partial cross-sectional side view showing the load receiving table lifting device disposed in the storage position.
FIG. 3 is a front view showing a load receiving table lifting device arranged at a storage position.
FIG. 4 is a front view showing a structure of a proximal end side load receiving member.
FIG. 5 is a plan view showing a receiving platform.
FIG. 6 is a partial cross-sectional side view showing the load receiving table lifting device arranged at the work position.
FIG. 7 is a schematic diagram showing a configuration of a tuning mechanism.
FIG. 8 is a perspective view showing a conventional load receiving table lifting device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cargo stand raising / lowering device 2 Cargo box 3 Prop 5 Cargo cradle 51 Base end side cargo receiving member 52 Front end side cargo receiving member 8 Cross member 91 Tail lamp 92 License plate A Storage position B Working position

Claims (2)

車輌の荷箱に立設された左右一対の支柱に沿って荷受台が昇降自在に設けられるとともに、荷箱の下方に格納可能に設けられた荷受台昇降装置において、前記荷受台が前後に少なくとも2つ折り自在になされ、該荷受台が折り畳まれた状態のまま荷箱の下方に水平移動することで格納されるように構成されたことを特徴とする荷受台昇降装置。A load receiving platform is provided so as to be able to move up and down along a pair of left and right pillars erected on a cargo box of the vehicle. A load receiving table lifting device, wherein the load receiving table lifting and lowering device is configured to be folded in two and stored by horizontally moving below the load box in a folded state. 前記左右一対の支柱間に配設されたクロスメンバーに荷受台の昇降駆動源である昇降シリンダが組み込まれるとともに、その後面部にテールランプ及びナンバープレートが埋設配置されたことを特徴とする請求項1記載の荷受台昇降装置。 The cross member disposed between the pair of left and right support columns incorporates a lift cylinder as a lift drive source of a load receiving table, and a tail lamp and a number plate are embedded in a rear surface portion thereof. receiving platform lifting device.
JP2002059660A 2002-03-06 2002-03-06 Loading platform lifting device Expired - Fee Related JP3884305B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002059660A JP3884305B2 (en) 2002-03-06 2002-03-06 Loading platform lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002059660A JP3884305B2 (en) 2002-03-06 2002-03-06 Loading platform lifting device

Publications (2)

Publication Number Publication Date
JP2003252106A JP2003252106A (en) 2003-09-10
JP3884305B2 true JP3884305B2 (en) 2007-02-21

Family

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Family Applications (1)

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