JP3110171U - Loading platform lifting device - Google Patents

Loading platform lifting device Download PDF

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JP3110171U
JP3110171U JP2005000448U JP2005000448U JP3110171U JP 3110171 U JP3110171 U JP 3110171U JP 2005000448 U JP2005000448 U JP 2005000448U JP 2005000448 U JP2005000448 U JP 2005000448U JP 3110171 U JP3110171 U JP 3110171U
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load receiving
loading platform
lift arm
platform
upper lift
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滋 池田
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Shinmaywa Industries Ltd
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Shinmaywa Industries Ltd
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Abstract

【課題】荷受台昇降装置において、複雑な形状のアッパーリフトアームを用いることなく、また、荷台に余分な加工をすることなく、荷受台の上昇時における荷台の端部に対するアッパーリフトアームの干渉を回避する。
【解決手段】荷台１に荷受台３を昇降可能に連結するリンク機構４は、それぞれ一端が荷台１側に他端が荷受台３側に枢支されるアッパーリフトアーム４１およびロアーリフトアーム４２を有し、両リフトアーム４１，４２の計４点の枢支部４３，４４，４５，４６は、それらを頂点とする平行四辺形を作る位置に配置されている。アッパーリフトアーム４１の荷受台側枢支部４５は、荷受台３の上昇時における荷台１の端部１１に対するアッパーリフトアーム４１の干渉を避けるよう荷受台３の基端側端縁３２から自由端側へ離隔して配置されいる。
【選択図】図１An object of the present invention is to prevent interference of an upper lift arm with an end portion of a load carrier when the load carrier is raised without using a complicatedly shaped upper lift arm and without extra processing on the load carrier in a lifting platform lifting device. To avoid.
A link mechanism (4) for connecting a load receiving platform (3) to a loading platform (1) so as to be movable up and down includes an upper lift arm (41) and a lower lift arm (42) each having one end pivotally supported on the loading platform (1) side and the other end supported on the load receiving platform (3) side. A total of four pivotal support portions 43, 44, 45, 46 of the lift arms 41, 42 are arranged at positions for forming parallelograms having these as apexes. The load receiving side pivotal support portion 45 of the upper lift arm 41 is free from the base end side edge 32 of the load receiving platform 3 so as to avoid interference of the upper lift arm 41 with the end portion 11 of the loading platform 1 when the load receiving platform 3 is raised. Are spaced apart.
[Selection] Figure 1

Description

本考案は、例えば貨物自動車等の車両における後部又は側部に設けられて、荷物の積み降ろしに用いられる荷受台昇降装置に関する。   The present invention relates to a load receiving table lifting / lowering device that is provided at a rear portion or a side portion of a vehicle such as a truck, and used for loading and unloading loads.

一般的に、車両の荷台に対する荷物の昇降動作、ならびに荷受台から荷台への荷物の移送動作を簡単かつ円滑に行うためには、荷受台昇降過程において荷受台を荷台の荷物搭載面に対し略平行な姿勢とすること、荷受台上昇位置において荷受台の上面を荷台の荷物搭載面と略面一とすること、荷受台の基端部を荷台の端部に近接配置させて両者間の隙間を可及的に小さくすることが要求される。   In general, in order to easily and smoothly perform the lifting and lowering operation of the load with respect to the loading platform of the vehicle and the transfer operation of the loading from the loading platform to the loading platform, the loading platform is substantially omitted from the loading surface of the loading platform in the lifting process of the loading platform. Make the parallel posture, make the upper surface of the loading platform substantially flush with the load mounting surface of the loading platform at the raised position of the loading platform, and place the proximal end of the loading platform close to the end of the loading platform so that there is a gap between them Is required to be as small as possible.

これらの要求を満たした従来の荷受台昇降装置として、例えば特許文献１に示すようなものがある。   For example, Patent Document 1 discloses a conventional load receiving table lifting apparatus that satisfies these requirements.

この荷受台昇降装置は、荷台に荷受台を昇降可能に連結するためのリンク機構を備えている。   This load receiving table lifting device includes a link mechanism for connecting the load receiving table to the load bed so as to be lifted and lowered.

リンク機構は、二本一対のアッパーリフトアームとロアーリフトアームとを有し、両リフトアームの一端は荷台側に、また、他端が荷受台側に、それぞれ枢支されている。アッパーリフトアームの荷台側枢支部および荷受台側枢支部と、ロアーリフトアームの荷台側枢支部および荷受台側枢支部との計４点は、平行四辺形となるよう配置されている。   The link mechanism has two pairs of upper lift arms and a lower lift arm, and one end of each lift arm is pivotally supported on the cargo bed side and the other end is pivotally supported on the cargo bed side. A total of four points of the loading platform side pivot portion and the loading platform side pivot portion of the upper lift arm and the loading platform side pivot portion and the loading platform side pivot portion of the lower lift arm are arranged in a parallelogram.

この従来例では、両リフトアームの荷受台側枢支部を荷受台の基端側端縁に可及的に近づけて配置しているために、アームの荷受台寄り部分を多少湾曲させる等、複雑な形状を設けても、荷受台の上昇時には、アッパーリフトアームが荷台の端部の補強用垂下壁部に干渉することになる。
特開平９−３１５２０１号公報 In this conventional example, the load receiving side pivot support part of both lift arms is arranged as close as possible to the base end side edge of the load receiving base. Even if a simple shape is provided, the upper lift arm interferes with the reinforcing hanging wall at the end of the loading platform when the loading platform is raised.
JP-A-9-315201

上記従来例では、荷受台上昇時における荷台に対するアッパーリフトアームの干渉を避けるために、荷台の垂下壁部にスリットを設けているが、この場合、荷台側に余分な加工を施す必要があり、車体価格が高くつくことになり、好ましくない。   In the above conventional example, in order to avoid interference of the upper lift arm with the loading platform when the loading platform is raised, a slit is provided in the hanging wall portion of the loading platform, but in this case, it is necessary to perform extra processing on the loading platform side, The vehicle price is expensive, which is not preferable.

本考案は、リンク機構を用いる荷受台昇降装置において、複雑な形状のアッパーリフトアームを用いることなく、また、車両の荷台に余分な加工をすることなく、荷受台の上昇時における荷台の端部に対するアッパーリフトアームの干渉を回避することを目的としている。   The present invention relates to a loading platform lifting device using a link mechanism, without using a complicatedly shaped upper lift arm, and without excessive processing on the loading platform of the vehicle. It aims at avoiding the interference of the upper lift arm with respect to.

本考案に係る荷受台昇降装置は、荷受台を車両の荷台の荷物搭載面に対し略平行な姿勢で昇降するとともに、荷受台の上面を荷台の荷物搭載面と略面一とする位置で停止するものであって、前記荷台に荷受台を昇降可能に連結するリンク機構を備え、このリンク機構は、それぞれ一端が荷台側に他端が荷受台側に枢支されるアッパーリフトアームおよびロアーリフトアームを有し、これら両リフトアームの計４点の枢支部は、それらを頂点とする平行四辺形を作る位置に配置されているとともに、前記アッパーリフトアームの荷受台側枢支部は、前記荷受台の上昇時における荷台端部に対するアッパーリフトアームの干渉を避けるよう荷受台の基端側端縁から自由端側へ離隔して配置されていることを特徴としている。   The load receiving platform lifting device according to the present invention lifts and lowers the load receiving platform in a substantially parallel posture with respect to the load mounting surface of the vehicle loading platform, and stops at a position where the upper surface of the load receiving platform is substantially flush with the load mounting surface of the load receiving platform. An upper lift arm and a lower lift, each of which is pivotally supported at one end and at the other end on the load receiving side. A total of four pivots of these lift arms are arranged at a position to form a parallelogram with these as the vertices, and the load receiving side pivot of the upper lift arm is In order to avoid interference of the upper lift arm with the end of the loading platform when the platform is raised, it is characterized in that it is spaced apart from the base end side edge of the loading platform to the free end side.

本考案によれば、複雑な形状のアッパーリフトアームを用いることなく、また、車両の荷台に余分な加工をすることなく、荷受台の上昇時に荷台の端部にアッパーリフトアームが干渉することを回避できる。これにより、単純な形状のアッパーリフトアームを安価に調達できるので、荷受台昇降装置のコスト低減が可能になる。   According to the present invention, it is possible to prevent the upper lift arm from interfering with the end of the loading platform when the loading platform is raised without using a complicatedly shaped upper lifting arm and without extra processing on the loading platform of the vehicle. Can be avoided. Thereby, since a simple-shaped upper lift arm can be procured at low cost, it is possible to reduce the cost of the load receiving platform lifting device.

以下、本考案の一実施形態を図１から図３に示して説明する。図中、１は貨物自動車等の車両の荷台、２は荷受台昇降装置である。   Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the figure, 1 is a loading platform for a vehicle such as a truck, and 2 is a loading platform lifting device.

この実施形態での荷受台昇降装置２は、荷台１への荷物の積み降ろしに用いられるものであり、荷受台３を荷台１の後部に設置して、荷受台３を荷台１の後端部１１の上下方向面に沿わせるように倒立させるようにしたタイプを例に挙げている。   The load receiving platform lifting / lowering device 2 in this embodiment is used for loading / unloading loads on the loading platform 1. The loading platform 3 is installed at the rear of the loading platform 1, and the cargo receiving platform 3 is installed at the rear end of the loading platform 1. 11 is an example of a type that is inverted so as to be along the vertical direction surface.

荷受台昇降装置２は、荷受台３を荷台１と地上面との間で荷台１の荷物搭載面１２に対し略平行な姿勢で昇降するものであり、荷受台３を二組のリンク機構４，４を介して荷台１に連結した構成になっている。   The load receiving platform lifting device 2 lifts and lowers the load receiving platform 3 between the loading platform 1 and the ground surface in a substantially parallel posture with respect to the load mounting surface 12 of the load loading platform 1. , 4 are connected to the loading platform 1 through the above.

なお、荷受台昇降装置２には、詳細に図示していないが、開放時に荷受台３を水平姿勢とするためのストッパ手段や、荷受台３を最上位置で停止させて荷受台３の上面を荷台１の荷物搭載面１２と略面一とする位置で停止するためのストッパ手段等を備えている。   Although not shown in detail in the load receiving platform lifting / lowering device 2, stopper means for placing the load receiving stand 3 in a horizontal position when opened, or the upper surface of the load receiving stand 3 is stopped by stopping the load receiving stand 3 at the uppermost position. Stopper means for stopping at a position substantially flush with the load carrying surface 12 of the loading platform 1 is provided.

二組のリンク機構４，４は、荷受台３の幅方向両側に左右対称に配置されており、基本的には同じ構成であるので、左右で対応する部分および部位に同一の符号を付している。   The two sets of link mechanisms 4 and 4 are arranged symmetrically on both sides in the width direction of the load receiving platform 3 and basically have the same configuration. ing.

リンク機構４は、二本一対のアッパーリフトアーム４１とロアーリフトアーム４２とを有している。   The link mechanism 4 has a pair of upper lift arms 41 and a lower lift arm 42.

両リフトアーム４１，４２の一端は、荷台１側、つまり荷台１の車両の後部下側に車幅方向に沿って設けられたフレーム１３にそれぞれ支軸４３，４４を介して回転自在に支持されている。一方、両リフトアーム４１，４２の他端は、荷受台３側、つまり荷受台３の幅方向両側に設けられている補強用垂下壁部３１，３１にそれぞれ支軸４５，４６を介して回転自在に支持されている。   One ends of the lift arms 41 and 42 are rotatably supported by the frame 13 provided along the vehicle width direction on the loading platform 1 side, that is, below the rear portion of the vehicle of the loading platform 1 via support shafts 43 and 44, respectively. ing. On the other hand, the other ends of the lift arms 41 and 42 are rotated via supporting shafts 45 and 46 respectively to the reinforcing hanging wall portions 31 and 31 provided on the load receiving table 3 side, that is, on both sides in the width direction of the load receiving table 3. It is supported freely.

なお、図示していないが、荷受台昇降装置２には、少なくとも片側のアッパーリフトアーム４１またはロアーリフトアーム４２を回動させることによって荷受台３を上下昇降させるための駆動装置を備えている。この駆動装置は、一般的に公知のものを流用することができるが、例えば左右のアッパーリフトアーム４１，４１の荷台１側枢支部としての支軸４３，４３または左右のロアーリフトアーム４２，４２の荷台１側枢支部としての支軸４４，４４を一本の軸とし、この軸を適宜の回動アーム（図示省略）を介してエアーシリンダまたは油圧シリンダ等（図示省略）で傾動させるように構成されたものとすることができる。あるいは駆動装置としては、電動モータ等と歯車機構を用いて前記一本の軸を回動させるように構成されたものとすることができる。   Although not shown, the load receiving table lifting device 2 includes a drive device for moving the load receiving table 3 up and down by rotating at least one upper lift arm 41 or lower lift arm 42. As this drive device, generally known devices can be used. For example, support shafts 43, 43 as left and right upper lift arms 41, 41 as pivots on the loading platform 1 side, or left and right lower lift arms 42, 42. The support shafts 44 and 44 serving as pivots on the side of the cargo bed 1 are used as a single shaft, and this shaft is tilted by an air cylinder, a hydraulic cylinder, or the like (not shown) via an appropriate rotating arm (not shown). It can be configured. Alternatively, the driving device may be configured to rotate the one shaft using an electric motor or the like and a gear mechanism.

そして、アッパーリフトアーム４１の荷台１側枢支部としての支軸４３および荷受台３側枢支部としての支軸４５と、ロアーリフトアーム４２の荷台１側枢支部としての支軸４４および荷受台３側枢支部としての支軸４６との各計４点は、それぞれ、それらを頂点とする平行四辺形を作る位置に配置されている。   Then, a support shaft 43 as a loading platform 1 side pivot of the upper lift arm 41 and a support shaft 45 as a loading platform 3 side pivot, and a support shaft 44 and a load receiving platform 3 as a loading platform 1 side pivot of the lower lift arm 42. A total of four points with each of the support shafts 46 as side pivots are arranged at positions that form parallelograms having these as vertices.

ここでは、アッパーリフトアーム４１の荷受台３側枢支部としての支軸４５とロアーリフトアーム４２の荷受台３側枢支部としての支軸４６とを結ぶ仮想直線Ｓ１が、荷台１の後端部１１の上下方向に沿う面と略平行とされている。これに伴い、アッパーリフトアーム４１の荷台１側枢支部としての支軸４３とロアーリフトアーム４２の荷台１側枢支部としての支軸４４とを結ぶ仮想直線Ｓ２は、前記仮想直線Ｓ１と平行とされている。   Here, the imaginary straight line S1 connecting the support shaft 45 as the load receiving platform 3 side pivot of the upper lift arm 41 and the support shaft 46 as the load receiving platform 3 side support of the lower lift arm 42 is the rear end of the loading platform 1. 11 is substantially parallel to the surface along the vertical direction. Accordingly, a virtual straight line S2 connecting the support shaft 43 as the loading platform 1 side pivot of the upper lift arm 41 and the support shaft 44 as the loading platform 1 side pivot of the lower lift arm 42 is parallel to the virtual straight line S1. Has been.

このようなリンク機構４において、アッパーリフトアーム４１およびロアーリフトアーム４２を、それぞれ直線帯状または丸棒状またはパイプ状等と単純な形状にしたうえで、アッパーリフトアーム４１の荷受台側枢支部としての支軸４５を、荷受台３の上昇時における荷台１端部に対するアッパーリフトアーム４１の干渉を避けるよう荷受台３の基端側端縁３２から自由端側へ所定距離Ｌだけ離隔して配置している。   In such a link mechanism 4, the upper lift arm 41 and the lower lift arm 42 are each formed into a simple shape such as a straight belt shape, a round bar shape, or a pipe shape, and the upper lift arm 41 is used as a load receiving side pivotal support portion. The support shaft 45 is arranged at a predetermined distance L from the base end side edge 32 of the load receiving platform 3 to the free end side so as to avoid the interference of the upper lift arm 41 with the end of the loading platform 1 when the load receiving platform 3 is raised. ing.

このように構成された荷受台昇降装置２の動作としては、まず、図示していない駆動装置によってアッパーリフトアーム４１を上向き（図１の反時計方向）に傾動させると、ロアーリフトアーム４２がアッパーリフトアーム４１と平行な関係を保ちながら同方向に傾動して荷受台３を上昇させる一方、アッパーリフトアーム４１を下向き（図１の時計方向）に傾動させると、ロアーリフトアーム４２がアッパーリフトアーム４１と平行な関係を保ちながら同方向に傾動して荷受台３を下降させる。   The operation of the load receiving device lifting / lowering device 2 configured as described above is as follows. First, when the upper lift arm 41 is tilted upward (counterclockwise in FIG. 1) by a driving device (not shown), the lower lift arm 42 is moved to the upper side. While tilting in the same direction while maintaining a parallel relationship with the lift arm 41, the load receiving platform 3 is raised, and when the upper lift arm 41 is tilted downward (clockwise in FIG. 1), the lower lift arm 42 is moved to the upper lift arm. While maintaining a parallel relationship with 41, it tilts in the same direction and lowers the load receiving platform 3.

この上昇過程、または下降過程においては、荷受台３が水平な姿勢に保持される。荷受台３が最上昇位置に到達すると、図示していないストッパ手段でもって荷受台３の上昇を阻止して停止させる。この状態では、荷受台３の基端側端縁３２が荷台１の後端部１１に近接配置されるようになっており、これらの間にはわずかな隙間ｈを設けてもよい。これにより、車両の荷台１に対する荷物の昇降動作、ならびに荷受台３から荷台１への荷物の移送動作を簡単かつ円滑に行うことが可能になっている。   In the ascending process or descending process, the load receiving platform 3 is held in a horizontal posture. When the load receiving table 3 reaches the highest position, the load receiving table 3 is prevented from being raised by a stopper means (not shown) and stopped. In this state, the base end side edge 32 of the load receiving platform 3 is arranged close to the rear end portion 11 of the load platform 1, and a slight gap h may be provided between them. As a result, the lifting and lowering operation of the load with respect to the loading platform 1 of the vehicle and the operation of transferring the loading from the loading platform 3 to the loading platform 1 can be performed easily and smoothly.

しかも、荷受台３の上昇時において、アッパーリフトアーム４１は、荷台１の後端部１１に干渉しない。さらに、荷受台３の下降過程において、各リフトアーム４１，４２が荷受台３に干渉しないように、荷受台３には、図３に示すように、切欠き３３が設けられている。   Moreover, the upper lift arm 41 does not interfere with the rear end portion 11 of the loading platform 1 when the loading platform 3 is raised. Further, as shown in FIG. 3, a notch 33 is provided in the load receiving table 3 so that the lift arms 41 and 42 do not interfere with the load receiving table 3 in the descending process of the load receiving table 3.

以上説明したように、アッパーリフトアーム４１における荷受台３側枢支部（４５）の位置を特定することにより、従来例のようにアッパーリフトアーム４１を複雑な形状にすることなく、また、従来例のように車両の荷台１にスリット等を形成するといった余分な加工をすることなく、荷受台３の上昇時に荷台１の端部にアッパーリフトアーム４１が干渉することを回避できる。   As described above, by specifying the position of the load receiving table 3 side pivot (45) in the upper lift arm 41, the upper lift arm 41 does not have a complicated shape as in the conventional example, and the conventional example. Thus, it is possible to avoid the upper lift arm 41 from interfering with the end of the loading platform 1 when the loading platform 3 is lifted without extra processing such as forming a slit or the like in the loading platform 1 of the vehicle.

これにより、アッパーリフトアーム４１を可及的単純な形状とすることができるから、それを安価に調達することが可能になり、荷受台昇降装置２のコスト低減が可能になる。なお、アッパーリフトアーム４１は、若干曲がった形状であってもよい。   Thereby, since the upper lift arm 41 can be made as simple as possible, it can be procured at a low cost, and the cost of the load receiving platform elevating device 2 can be reduced. The upper lift arm 41 may have a slightly bent shape.

以下、本考案の他の実施形態を説明する。   Hereinafter, other embodiments of the present invention will be described.

（１）上記実施形態において、アッパーリフトアーム４１の荷受台側枢支部としての支軸４５とロアーリフトアーム４２の荷受台側枢支部としての支軸４６とを上下方向に沿う線上に配置せずに前方または後方に偏移してもよい。その一例を、図４および図５に示している。   (1) In the above embodiment, the support shaft 45 as the load receiving side pivotal support portion of the upper lift arm 41 and the support shaft 46 as the load receiving side pivotal support portion of the lower lift arm 42 are not arranged on a line along the vertical direction. May be shifted forward or backward. An example of this is shown in FIGS.

図４に示す実施形態では、ロアーリフトアーム４２の荷受台側枢支部としての支軸４６をアッパーリフトアーム４１の荷受台側枢支部としての支軸４５よりも荷台１側へ所定量だけ偏移させているとともに、それに合わせてロアーリフトアーム４２の荷台側枢支部としての支軸４４をアッパーリフトアーム４１の荷台側枢支部としての支軸４３よりも荷台１側へ偏移させている。   In the embodiment shown in FIG. 4, the support shaft 46 as the load receiving side pivotal support portion of the lower lift arm 42 is shifted by a predetermined amount from the support shaft 45 as the load receiving side pivotal support portion of the upper lift arm 41 to the loading platform 1 side. At the same time, the support shaft 44 as the loading platform side pivot of the lower lift arm 42 is shifted to the loading platform 1 side of the support shaft 43 as the loading platform side support of the upper lift arm 41.

一方、図５に示す実施形態では、ロアーリフトアーム４２の荷受台側枢支部としての支軸４６をアッパーリフトアーム４１の荷受台側枢支部として支軸４５よりも荷受台３の自由端側へ所定量だけ偏移させているとともに、それに合わせてロアーリフトアーム４２の荷台側枢支部としての支軸４４をアッパーリフトアーム４１の荷台側枢支部としての支軸４３よりも荷受台３の自由端側へ偏移させている。   On the other hand, in the embodiment shown in FIG. 5, the support shaft 46 as the load receiving side pivotal support portion of the lower lift arm 42 is used as the load receiving side pivotal support portion of the upper lift arm 41 to the free end side of the load receiving platform 3 than the support shaft 45. The support shaft 44 serving as a loading platform side pivot portion of the lower lift arm 42 is made to be shifted by a predetermined amount, and the free end of the load receiving platform 3 is made to be larger than the supporting shaft 43 serving as a loading platform side pivot portion of the upper lift arm 41. It is shifted to the side.

（２）上記実施形態において、図示していないが、アッパーリフトアーム４１またはロアーリフトアーム４２を伸縮構造またはエアーシリンダまたは油圧シリンダ等とし、アッパーリフトアーム４１またはロアーリフトアーム４２を伸縮させることによって、ロアーリフトアーム４２の荷受台側枢支部としての支軸４６またはアッパーリフトアーム４１の荷受台側枢支部としての支軸４５を傾動支点として、荷受台３を首振り動作（チルト）させるように構成することができる。このチルト動作は、荷受台３をその自由端を地上面に接するように傾かせることができるから、荷物を荷受台３に載せることが容易となる。   (2) In the above embodiment, although not shown in the drawings, the upper lift arm 41 or the lower lift arm 42 is made into an expansion / contraction structure, an air cylinder, a hydraulic cylinder or the like, and the upper lift arm 41 or the lower lift arm 42 is expanded / contracted, The load receiving platform 3 is swung (tilted) with the support shaft 46 as the load receiving platform side pivot of the lower lift arm 42 or the support shaft 45 as the load receiving platform support of the upper lift arm 41 as a tilting fulcrum. can do. In this tilting operation, the load receiving platform 3 can be tilted so that its free end is in contact with the ground surface, so that it is easy to place the load on the load receiving platform 3.

（３）本考案は、図示していないが、リンク機構４を一組だけ用いた構成とすることができる。この場合、リンク機構４は、荷受台３の幅方向中央に配置するのが好ましい。   (3) Although this invention is not shown in figure, it can be set as the structure which used only one set of the link mechanisms 4. FIG. In this case, the link mechanism 4 is preferably arranged at the center in the width direction of the cargo receiver 3.

（４）本考案は、図示していないが、荷台１の側部に設置される荷受台昇降装置２にも適用できる。その場合、荷受台３は荷台１の側面に沿わせるように倒立される。   (4) Although this invention is not shown in figure, it can be applied also to the load receiving platform raising / lowering apparatus 2 installed in the side part of the loading platform 1. FIG. In that case, the cargo receiving platform 3 is inverted so as to be along the side surface of the loading platform 1.

（５）本考案は、図示していないが、荷受台３を荷台１下方にスライドして潜り込ませるように格納するタイプの荷受台昇降装置にも適用できる。   (5) Although this invention is not shown in figure, it can be applied also to the load receiving platform raising / lowering device of the type which stores the load receiving platform 3 so that it slides under the loading platform 1 and it sunk.

本考案に係る荷受台昇降装置の一実施形態を示す側面図である。It is a side view which shows one Embodiment of the goods receiving base raising / lowering apparatus which concerns on this invention. 図１の荷受台昇降装置の構成を模式的に示す斜視図である。It is a perspective view which shows typically the structure of the cargo receiving stand raising / lowering apparatus of FIG. 図２の荷受台昇降装置の荷受台を下げた状態を示す斜視図である。It is a perspective view which shows the state which lowered the load receiving stand of the load receiving stand raising / lowering apparatus of FIG. 本考案に係る荷受台昇降装置の他の実施形態を示す側面図である。It is a side view which shows other embodiment of the goods receiving base raising / lowering apparatus which concerns on this invention. 本考案に係る荷受台昇降装置のさらに他の実施形態を示す側面図である。It is a side view which shows other embodiment of the goods receiving base raising / lowering apparatus which concerns on this invention.

符号の説明Explanation of symbols

１ 荷台
１１ 荷台の後端部
１２ 荷台の荷物搭載面
２ 荷受台昇降装置
３ 荷受台
３２ 荷受台の基端側端縁
４ リンク機構
４１ アッパーリフトアーム
４２ ロアーリフトアーム
４３ アッパーリフトアームの荷台側枢支部となる支軸
４４ ロアーリフトアームの荷台側枢支部となる支軸
４５ アッパーリフトアームの荷受台側枢支部となる支軸
４６ ロアーリフトアームの荷受台側枢支部となる支軸 DESCRIPTION OF SYMBOLS 1 Loading platform 11 Back end part of loading platform 12 Loading surface of loading platform 2 Loading platform lifting device 3 Loading platform 32 Edge of base end side of loading platform 4 Link mechanism 41 Upper lift arm 42 Lower lift arm 43 Loading platform side pivot of upper lift arm A support shaft that serves as a support 44 A support shaft that serves as a support for the loading platform side of the lower lift arm 45 A support shaft that serves as a support for the load receiving side of the upper lift arm 46 A support shaft that serves as the support for the load receiving side of the lower lift arm

Claims (1)

荷受台を車両の荷台の荷物搭載面に対し略平行な姿勢で昇降するとともに、荷受台の上面を荷台の荷物搭載面と略面一とする位置で停止する荷受台昇降装置であって、
前記荷台に荷受台を昇降可能に連結するリンク機構を備え、
このリンク機構は、それぞれ一端が荷台側に他端が荷受台側に枢支されるアッパーリフトアームおよびロアーリフトアームを有し、
両リフトアームの計４点の枢支部は、それらを頂点とする平行四辺形を作る位置に配置されているとともに、
前記アッパーリフトアームの荷受台側枢支部は、前記荷受台の上昇時における荷台の端部に対するアッパーリフトアームの干渉を避けるよう荷受台の基端側端縁から自由端側へ離隔して配置されていることを特徴とする荷受台昇降装置。 A load receiving platform lifting device that lifts and lowers the load receiving platform in a substantially parallel posture with respect to the load mounting surface of the vehicle loading platform and stops the upper surface of the load receiving platform at a position substantially flush with the load mounting surface of the loading platform,
A link mechanism for connecting the loading platform to the loading platform so as to be movable up and down;
This link mechanism has an upper lift arm and a lower lift arm, one end of which is pivotally supported on the loading platform side and the other end is pivotally supported on the loading platform side,
A total of four pivots of both lift arms are arranged at a position to form a parallelogram with these as vertices,
The load receiving side pivotal support portion of the upper lift arm is spaced apart from the base end side edge of the load receiving stand to the free end side so as to avoid interference of the upper lift arm with the end portion of the load receiving base when the load receiving stand is raised. A receiving platform lifting device characterized by that.
JP2005000448U 2005-02-02 2005-02-02 Loading platform lifting device Expired - Lifetime JP3110171U (en)

Priority Applications (1)

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010120439A (en) * 2008-11-18 2010-06-03 Kyokuto Kaihatsu Kogyo Co Ltd Load receiving platform lifting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010120439A (en) * 2008-11-18 2010-06-03 Kyokuto Kaihatsu Kogyo Co Ltd Load receiving platform lifting device

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