JP4163086B2 - Loading platform support structure in the loading platform lifting device - Google Patents

Loading platform support structure in the loading platform lifting device Download PDF

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JP4163086B2
JP4163086B2 JP2003353378A JP2003353378A JP4163086B2 JP 4163086 B2 JP4163086 B2 JP 4163086B2 JP 2003353378 A JP2003353378 A JP 2003353378A JP 2003353378 A JP2003353378 A JP 2003353378A JP 4163086 B2 JP4163086 B2 JP 4163086B2
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load receiving
platform
slider
loading platform
receiving platform
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JP2005119335A (en
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郁男 米田
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Shinmaywa Industries Ltd
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Shinmaywa Industries Ltd
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Description

本発明は、荷台と地上との間で荷受台が昇降自在に設けられた荷受台昇降装置に関し、特に、荷受台昇降装置が荷台内に格納される荷台内格納型の荷受台昇降装置における荷受台支持構造に関するものである。   The present invention relates to a load receiving platform lifting device in which a load receiving platform is provided so as to be movable up and down between a loading platform and the ground, and more particularly, a load receiving in a load receiving platform lifting device in which the load receiving platform lifting device is stored in the loading platform. The present invention relates to a table support structure.

従来、この種の荷台内格納型の荷受台昇降装置は、荷台側に立設された旋回ポストを中心にして荷台内の格納位置と荷台外の作業位置の間で回動可能に設けられ、上記作業位置において荷受台を荷台と略面一な最上昇位置と地上に接地する最下降位置との間で昇降自在になされている。   Conventionally, this type of loading platform lifting device for storage in the loading platform is provided so as to be rotatable between a storage position in the loading platform and a work position outside the loading platform, with a pivot post standing on the loading platform side as the center, In the work position, the load receiving platform is movable up and down between a most elevated position that is substantially flush with the loading platform and a lowest lowered position that contacts the ground.

また、上記荷受台は、水平位置と起立位置との間で上下方向に回動自在に設けられており、格納位置と作業位置との間で回動させる場合には荷受台を起立位置に配置した状態で行い、作業位置に配置した状態で起立位置から水平位置に回動配置することで上述した昇降動作を行っている（例えば、特許文献１参照。）。   The load receiving platform is provided so as to be rotatable in the vertical direction between the horizontal position and the standing position, and when rotating between the storage position and the working position, the load receiving table is disposed at the standing position. The above-described elevating operation is performed by rotating from the standing position to the horizontal position while being arranged at the work position (see, for example, Patent Document 1).

そして、荷受台を格納位置と作業位置との間で回動させる支持構造としては、図５に示すように、図示しない旋回ポストに連結された支柱ａ内にスライダｂが図示しない伸縮シリンダにより上下方向に摺動自在に設けられ、このスライダｂの下端部に荷受台ｃの基端部が回動自在に支持されている。具体的には、基端ｃ１から先端側に所定距離隔てた位置で荷受台ｃがヒンジｄを介してスライダｂに回動自在に設けられており、水平位置において荷受台ｃの基端ｃ１をスライダｂの下端部に設けた図示しないストッパに下方から当接させることで当該水平位置を保持するようにしていた。
実開平６−３９５７４号公報 As a support structure for rotating the load receiving table between the storage position and the working position, as shown in FIG. 5, a slider b is vertically moved by a telescopic cylinder (not shown) in a column (a) connected to a turning post (not shown). The base end portion of the load receiving platform c is rotatably supported by the lower end portion of the slider b. Specifically, a load receiving table c is rotatably provided on the slider b via a hinge d at a position spaced from the base end c1 by a predetermined distance, and the base end c1 of the load receiving table c is set at a horizontal position. The horizontal position is held by contacting a stopper (not shown) provided at the lower end of the slider b from below.
Japanese Utility Model Publication No. 6-39574

しかしながら、上記従来のように荷受台ｃを上下方向に回動自在に支持したものでは、図５に二点鎖線で示すように荷受台ｃを起立位置に配置した際に荷受台ｃの基端ｃ１がスライダｂの下端よりも下方に突出した状態になる。つまり、起立位置における荷受台ｃの基端ｃ１の高さ位置が水平位置の高さ位置よりも低くなり、このために以下のような問題が生じる場合があった。 However, in the case where the load receiving table c is supported so as to be rotatable in the vertical direction as in the conventional case, the base end of the load receiving table c is arranged when the load receiving table c is arranged in the upright position as shown by a two-dot chain line in FIG. c1 protrudes downward from the lower end of the slider b. That is, the height position of the base end c1 of the load receiving platform c at the standing position is lower than the height position of the horizontal position, which may cause the following problems.

例えば、荷台の床面と略同じ高さのプラットホームから荷受台昇降装置を使用せずに荷台に荷物を積込む場合、荷受台昇降装置をプラットホーム上となる作業位置に配置しており、この際には荷受台は作業の邪魔にならないように起立位置に配置している。   For example, when loading a load onto the platform without using the platform lifting device from a platform approximately the same height as the floor of the platform, the platform lifting device is placed at a work position on the platform. In this case, the receiving platform is placed in a standing position so as not to interfere with the work.

そして、この状態で荷物を荷台に積み込んでいくと当該荷物の重みによって車体が徐々に沈んでいく。このとき、荷受台ｃの基端ｃ１がスライダｂの下端よりも下方に突出していてプラットホームの床面との間の間隔が小さいと、荷受台ｃの基端ｃ１が床面についてしまい、荷受台昇降装置を荷台内の格納位置に格納できなくなる。   In this state, when the luggage is loaded on the loading platform, the vehicle body gradually sinks due to the weight of the luggage. At this time, if the base end c1 of the load receiving platform c protrudes downward from the lower end of the slider b and the distance from the floor surface of the platform is small, the base end c1 of the load receiving platform c comes to the floor surface, and the load receiving platform The lifting device cannot be stored in the storage position in the loading platform.

従って、荷受台昇降装置を荷台内に格納するには、積み込んだ荷物をプラットホームに降ろして荷受台ｃの基端ｃ１をプラットホームから浮かせる必要があり、このような余分な作業が作業者の負担を招くことになる。   Therefore, in order to store the loading platform lifting device in the loading platform, it is necessary to drop the loaded luggage onto the platform and to lift the base end c1 of the loading platform c from the platform. Such extra work places a burden on the operator. Will be invited.

また、荷台に積んだ荷物を荷受台昇降装置を使用せずにプラットホームに降ろそうとする場合にも、荷受台昇降装置を作業位置に配置できない場合も生じ、作業に支障を来すことになる。 In addition, even when trying to drop a load loaded on the loading platform onto the platform without using the loading platform lifting device, the loading platform lifting device may not be placed at the work position, which may hinder the work. .

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、荷受台を起立位置に配置した場合に、当該荷受台の基端の高さ位置を高くすることで、荷受台昇降装置とプラットホームとの距離を大きく確保することのできる荷台内格納型の荷受台昇降装置における荷受台支持構造を提供することにある。   The present invention has been made in view of the above-described problems. The object of the present invention is to increase the height position of the base end of the load receiving table when the load receiving table is placed in the upright position. It is an object of the present invention to provide a load receiving platform support structure in a load receiving platform lifting / lowering device that can be stored in a loading platform and can ensure a large distance between the platform lifting / lowering device and a platform.

上記の目的を達成するため、請求項１に係る発明の荷台内格納型の荷受台昇降装置における荷受台支持構造は、支柱内にスライダが上下方向に摺動自在に設けられてなる昇降機構により当該スライダの下端部に連設された荷受台が荷台と地上との間で昇降自在に設けられるとともに、これら荷受台及び昇降機構が荷台内に立設された旋回ポストを中心にして荷台内に配置される格納位置と荷台外の作業位置との間で水平方向に回動自在に設けられ、さらに上記荷受台が水平位置と起立位置との間で上下方向に回動自在に設けられた荷台内格納型の荷受台昇降装置において、前記荷受台は、起立位置に配置された基端の高さ位置が水平位置に配置されたときの基端の高さ位置よりも高くなるようにその基端部がヒンジを介して前記スライダに回動自在に支持され、また、起立位置に配置された荷受台が、該荷受台の一側面から側方に突出された係止ピンに、支柱に回動自在に設けられた係止片が係合するとともに、荷受台に設けられた固縛孔に、支柱に突設された固縛ピンが挿入係止して固縛保持されるものである。 In order to achieve the above object, the load receiving platform supporting structure in the load receiving platform lifting device of the invention according to claim 1 is provided by a lifting mechanism in which a slider is slidably provided in a vertical direction in a column. A load cradle connected to the lower end of the slider is provided so as to freely move up and down between the load bed and the ground, and the load cradle and the lifting mechanism are centered on a swivel post erected in the load bed. A loading platform that is provided so as to be rotatable in the horizontal direction between the storage position where it is disposed and a work position outside the loading platform, and further wherein the loading platform is provided so as to be rotatable in the vertical direction between the horizontal position and the standing position. In the inner stowage type load receiving platform lifting device, the load receiving platform is configured such that the height position of the proximal end disposed at the standing position is higher than the height position of the proximal end when disposed at the horizontal position. The end turns to the slider via a hinge. Is rotatably supported, also receiving platform which is arranged in the standing position, the lock pin protruded sideways from one side of said receiving platform, locking piece rotatably mounted to the support engagement At the same time, the lashing pins protruding from the support columns are inserted into and locked in the lashing holes provided in the load receiving platform .

請求項２に係る発明の荷台内格納型の荷受台昇降装置における荷受台支持構造は、前記スライドの上端部に、支柱の前壁内面を転動する第１ガイドローラと、支柱の左右側壁内面を転動する第２ガイドローラが設けられ、また、支柱の下部に、スライダの内側側壁外面を転動するガイドローラと、スライダの後壁外面を転動する第４ガイドローラが設けられるものである。According to a second aspect of the present invention, there is provided a load carrier support structure in a load carrier storage type lifting device, the first guide roller rolling on the inner surface of the front wall of the column at the upper end of the slide, and the inner surfaces of the right and left side walls of the column. A second guide roller that rolls on the inner side wall of the slider, and a fourth guide roller that rolls on the outer surface of the rear wall of the slider. is there.

本発明によれば、荷受台を起立位置に配置した場合に、当該荷受台の基端の高さ位置を高くすることで、荷受台昇降装置とプラットホームとの距離を大きく確保することができるので、地上よりも高いプラットホームから荷受台昇降装置を使用せずに荷台に荷物を積込んで当該荷物の積込により車体が沈んだとしても荷受台昇降装置の下端がプラットホームの床面に接することがなく、作業を円滑に行うことができる。また、荷台に積んだ荷物を荷受台昇降装置を使用せずにプラットホームに降ろそうとする場合にも、荷受台昇降装置を当該プラットホームと接触することなく作業位置に円滑に配置でき、作業に支障を来すことがない。   According to the present invention, when the load receiving platform is arranged in the upright position, the distance between the load receiving platform lifting device and the platform can be secured large by increasing the height position of the base end of the load receiving platform. Even if a load is loaded on the loading platform without using the loading platform lifting device from a platform higher than the ground, and the vehicle body sinks due to the loading of the load, the lower end of the loading platform lifting device may be in contact with the floor of the platform. Work can be performed smoothly. In addition, when trying to unload a load loaded on the loading platform onto the platform without using the loading platform lifting device, the loading platform lifting device can be smoothly placed at the work position without contacting the platform, which hinders work. Never come.

以下、本発明の実施の形態について図面を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、荷台内格納型の荷受台昇降装置の概略構成を示している。   FIG. 1 shows a schematic configuration of a load receiving table elevating device of a storage type in the loading platform.

図１において、１は、貨物車輌の荷台であり、この荷台１には荷受台昇降装置２が設けられている。この荷受台昇降装置２は、荷受台３と、この荷受台３を昇降させる昇降機構４とを備えている。   In FIG. 1, reference numeral 1 denotes a loading platform of a cargo vehicle, and the loading platform 1 is provided with a loading platform elevating device 2. The load receiving table elevating device 2 includes a load receiving table 3 and an elevating mechanism 4 for moving the load receiving table 3 up and down.

具体的には、昇降機構４は、図２及び図３に示すように左右一対の支柱４１、４１が上下２本の連結部材４１ａ、４１ｂを介して垂直方向に平行に設けられ、これら支柱４１、４１内をスライダ４２が昇降自在に設けられている。   Specifically, as shown in FIGS. 2 and 3, the elevating mechanism 4 includes a pair of left and right columns 41, 41 provided in parallel in the vertical direction via two upper and lower connecting members 41 a, 41 b. , 41 is provided so that the slider 42 can be raised and lowered.

各スライダ４２は、その下端部が支柱４１から突出して設けられており、この下端部に上記荷受台３の基端部が連結されている。また、左右のスライダ４２を連結する連結部材４３と前記支柱４１間を連結する上側の連結部材４１ａとの間には伸縮シリンダ４５が連結されている。   Each slider 42 is provided with a lower end portion protruding from the support column 41, and a base end portion of the load receiving platform 3 is connected to the lower end portion. An extension cylinder 45 is connected between a connecting member 43 that connects the left and right sliders 42 and an upper connecting member 41 a that connects the columns 41.

そして、スライダ４２の上端部には、第１ガイドローラ４６及び第２ガイドローラ４７が設けられており、スライダ４２の昇降時において、第１ガイドローラ４６が図４に示すように支柱４１の正面から見て前側の前壁内面を、第２ガイドローラ４７が支柱４１の正面から見て左右の側壁内面をそれぞれ転動するようになされている。   A first guide roller 46 and a second guide roller 47 are provided at the upper end portion of the slider 42. When the slider 42 is raised and lowered, the first guide roller 46 is in front of the column 41 as shown in FIG. The second guide roller 47 is configured to roll on the inner surfaces of the left and right side walls as viewed from the front of the support column 41.

また、支柱４１の下部にも第３ガイドローラ４８及び第４ガイドローラ４９（図４参照）が設けられており、スライダ４２の昇降時において、第３ガイドローラ４８がスライダ４２の内側側壁外面を、第４ガイドローラ４９がスライダ４２の正面から見て後側の後壁外面をそれぞれ転動するようになされている。   In addition, a third guide roller 48 and a fourth guide roller 49 (see FIG. 4) are also provided at the lower portion of the support column 41, and the third guide roller 48 moves on the outer surface of the inner side wall of the slider 42 when the slider 42 moves up and down. The fourth guide roller 49 rolls on the outer surface of the rear wall as viewed from the front of the slider 42.

このように各ガイドローラ４６〜４９を設けることで、スライダ４２の昇降動作を円滑に行うようにしている。   By providing the guide rollers 46 to 49 in this way, the slider 42 is smoothly moved up and down.

前記荷受台３は、図４に示すように垂直方向に起立する起立位置と水平位置（図４二点鎖線参照）との間で配置可能なようにスライダ４２の下端部にヒンジ３１を介して回動自在に支持されている。   As shown in FIG. 4, the load receiving platform 3 is arranged at a lower end portion of a slider 42 via a hinge 31 so that it can be disposed between a standing position that stands vertically and a horizontal position (see a two-dot chain line in FIG. 4). It is supported rotatably.

この荷受台３のスライダ４２に対する支持構造は、図４に示すように荷受台３の基端部に突設されたブラケット３２の先端部と、スライダ４２の下端部に上方に向けて斜めに突設されたブラケット４２ａの先端部とがヒンジ３１によって回動自在に連結されている。このように荷受台３を回動自在に支持することで、回動中心となるヒンジ３１の位置はスライダ４２の下端よりも高くなり、荷受台３を水平位置に配置した際には、荷受台３の基端３ａ端面がスライダ４２の下端に水平に突設されたストッパボルト３３に当接することで、この水平位置を保持するようにしている。   As shown in FIG. 4, the support structure of the load receiving platform 3 for the slider 42 projects obliquely upward toward the distal end portion of the bracket 32 protruding from the proximal end portion of the load receiving platform 3 and the lower end portion of the slider 42. A tip end portion of the provided bracket 42 a is rotatably connected by a hinge 31. By supporting the load receiving table 3 in such a manner as to be rotatable, the position of the hinge 31 serving as the rotation center becomes higher than the lower end of the slider 42, and when the load receiving table 3 is arranged in a horizontal position, the load receiving table 3 3 is held by a stopper bolt 33 projecting horizontally at the lower end of the slider 42 so that the horizontal position is maintained.

これにより、荷受台３の基端３ａの高さ位置を、水平位置に配置したときよりも起立位置に配置したときの方が高くなるようにすることができる。   Thereby, the height position of the base end 3a of the load receiving platform 3 can be made higher when it is disposed at the standing position than when it is disposed at the horizontal position.

また、荷受台３は、起立位置において第１固縛手段５１と第２固縛手段５５からなる固縛手段５により固縛保持されるようになされている。   Further, the load receiving platform 3 is secured and held by the securing means 5 including the first securing means 51 and the second securing means 55 in the standing position.

第１固縛手段５１は、荷受台３の起立位置から水平位置側への回動を阻止するもので、荷受台３の一側面途中部から側方に突設された係止ピン５２と、支柱４１に回動自在に設けられ上記係止ピン５２に係止可能な係止片５３とで構成されている。   The first securing means 51 prevents rotation of the load receiving platform 3 from the standing position to the horizontal position, and includes a locking pin 52 projecting laterally from one side of the side of the load receiving platform 3; It is composed of a locking piece 53 that is rotatably provided on the column 41 and can be locked to the locking pin 52.

第２固縛手段５５は、荷受台３の下方への移動を阻止するもので、荷受台３に設けられた固縛孔５６と、支柱４１に突設され格納位置において固縛孔５６に挿入係止される固縛ピン５７とで構成されている。   The second lashing means 55 prevents the downward movement of the load receiving pedestal 3 and is inserted into the lashing hole 56 provided in the load receiving pedestal 3 and the support hole 41 protruding from the support post 41. It is comprised with the securing pin 57 latched.

従って、荷受台３を水平位置から起立位置に配置した場合には、固縛ピン５７が固縛孔５６に挿入係止されることで、荷受台３の回動動作だけで自動的に荷受台３の下方への移動を阻止し、また、係止片５３を二点鎖線で示す垂下位置から回動させて係止ピン５２に上方から係止させるだけで、荷受台３の起立位置から水平位置側への回動を阻止することができる。即ち、この固縛手段５によれば、係止片５３を係止ピン５２に係止するだけの単純な操作だけによって、荷受台３の起立位置から水平位置側への回動を阻止することができるとともに、荷受台３の下方への移動を阻止することができ、走行時等に荷受台３を起立位置で安定的に固縛することができる。   Accordingly, when the load receiving platform 3 is arranged from the horizontal position to the standing position, the securing pin 57 is inserted into and locked in the securing hole 56, so that the load receiving platform 3 can be automatically operated only by the rotation operation of the load receiving platform 3. 3 is prevented from moving downward, and the locking piece 53 is rotated from the hanging position indicated by a two-dot chain line, and is locked to the locking pin 52 from above, so that the horizontal position from the standing position of the load receiving platform 3 can be obtained. The rotation to the position side can be prevented. That is, according to the securing means 5, the rotation of the load receiving platform 3 from the standing position to the horizontal position side can be prevented by only a simple operation of locking the locking piece 53 to the locking pin 52. In addition, the downward movement of the load receiving platform 3 can be prevented, and the load receiving platform 3 can be stably secured in the standing position during traveling.

なお、係止片５３を係止ピン５２に係止した際には、不用意に係止片５３が係止ピン５２から離脱しないように適宜な保持機構を設けるのが好ましい。   In addition, when the locking piece 53 is locked to the locking pin 52, it is preferable to provide an appropriate holding mechanism so that the locking piece 53 is not carelessly detached from the locking pin 52.

一方、荷台１内の後部片隅部（図示では進行方向に対して右側隅部）には、旋回ポスト６が立設され、この旋回ポスト６の旋回側が上下の回動アーム６１を介して隣接する一方の支柱４１に連結されている。これにより荷受台３及び昇降機構４を備えた荷受台昇降装置２全体が旋回ポスト６を中心にして回動自在に設けられている。   On the other hand, a turning post 6 is erected at a rear corner of the loading platform 1 (right corner with respect to the traveling direction in the drawing), and the turning side of the turning post 6 is adjacent via an upper and lower turning arm 61. One column 41 is connected. As a result, the entire load receiving platform lifting / lowering device 2 including the load receiving platform 3 and the lifting / lowering mechanism 4 is provided to be rotatable about the turning post 6.

また、荷台１の後部は、図１に示すように観音扉式の開閉扉１１により開閉自在になされている。そして、荷受台昇降装置２が対峙する片側の開閉扉１１は、図３に示すように前記支柱４１の下方の連結部材４１ｂと連結ロッド１２を通じて荷受台昇降装置２と一体的に連結されるとともに、連結ロッド１２を取外すことで両者を分離させることができる。 Further, as shown in FIG. 1, the rear part of the loading platform 1 is openable and closable by a door-opening door 11. As shown in FIG. 3, the opening / closing door 11 on one side facing the load receiving platform lifting / lowering device 2 is integrally connected to the load receiving platform lifting / lowering device 2 through the connecting member 41 b below the support column 41 and the connecting rod 12. Both can be separated by removing the connecting rod 12.

つまり、開閉扉１１と荷受台昇降装置２とを連結ロッド１２により一体的に連結した状態で開閉扉１１を開放すると、この開放に連動して荷受台昇降装置２が旋回ポスト６を中心にして荷台１内から荷台１外に配置されることになる。   That is, when the opening / closing door 11 is opened in a state where the opening / closing door 11 and the load receiving platform lifting / lowering device 2 are integrally connected by the connecting rod 12, the load receiving platform lifting / lowering device 2 is centered on the turning post 6 in conjunction with the opening. It will be arranged outside the loading platform 1 from inside the loading platform 1.

なお、図１に示す符号Ａは、伸縮シリンダ４５を設けた支柱４１間全体を被覆するカバーであり、このカバーＡにより美観の向上を図ることができるとともに、昇降時において荷受台３に積んだ荷物と伸縮シリンダ４５等の可動部との干渉を防止することができ、当該干渉による両者の破損などを防止することができる。   In addition, the code | symbol A shown in FIG. 1 is a cover which covers the whole between the support | pillar 41 which provided the expansion-contraction cylinder 45, and while improving the aesthetics by this cover A, it loaded on the load receiving stand 3 at the time of raising / lowering Interference between the load and the movable part such as the telescopic cylinder 45 can be prevented, and damage to both due to the interference can be prevented.

そして、このように構成された荷受台昇降装置２は、装置全体が荷台１内の後部において開閉扉１１に沿って幅方向に配置される格納位置（図３二点鎖線参照）と、この格納位置から旋回ポスト６を中心に回動させて、例えば９０°回動させた作業位置とに配置され、この作業位置で地上と荷台１との間で荷物の積降ろしを行うようにしている。   Then, the load receiving platform lifting / lowering device 2 configured in this way has a storage position (see a two-dot chain line in FIG. 3) in which the entire device is disposed in the width direction along the opening / closing door 11 at the rear portion in the load carrier 1. The swivel post 6 is pivoted from the position, and is disposed at a work position rotated by 90 °, for example, and the load is unloaded between the ground and the loading platform 1 at this work position.

具体的には、格納位置に配置された荷受台昇降装置２を回動させて作業位置に配置し、当該作業位置で荷受台３を起立位置から水平位置に配置し、この状態で伸縮シリンダ４５を伸縮作動させてスライダ４２を支柱４１に沿って上下方向に移動させることで、当該スライダ４２に連結された荷受台３を水平状態を保持して荷台１の床面と地上との間で昇降作動させ、これにより地上から荷台１への荷物の積込みもしくは荷台１から地上への荷物の降ろしを行うようにしている。   Specifically, the load receiving platform lifting device 2 disposed at the storage position is rotated to be disposed at the work position, and the load receiving platform 3 is disposed at the work position from the standing position to the horizontal position. By moving the slider 42 up and down along the column 41, the load receiving platform 3 connected to the slider 42 is moved up and down between the floor surface of the loading platform 1 and the ground. In this manner, loading of the load from the ground onto the loading platform 1 or loading of the loading from the loading platform 1 to the ground is performed.

なお、上述したように格納位置と作業位置に配置される荷受台昇降装置２は、当該格納位置と作業位置とで図示しない保持手段によりそれぞれ安定的に保持するようになされている。   Note that, as described above, the load receiving platform lifting / lowering device 2 arranged at the storage position and the work position is stably held by the holding means (not shown) at the storage position and the work position.

また、荷受台３による荷物の積降ろしは、荷受台３を荷台１の床面よりも若干上方位置に配置した最上方位置において、図３に二点鎖線で示すように水平状態のままで荷台１内の格納位置に配置することで、荷台１内において荷受台３と床面との間で荷物を移し替えることもできる。   Further, the loading / unloading of the load by the load receiving platform 3 is performed in the horizontal position as shown by a two-dot chain line in FIG. 3 at the uppermost position where the load receiving platform 3 is disposed slightly above the floor surface of the load platform 1. By placing it in the storage position in 1, it is also possible to transfer the load between the load receiving platform 3 and the floor surface in the loading platform 1.

このような場合には、連結ロッド１２を取外しておくことで、開閉扉１１を開放した状態で荷受台昇降装置２だけを回動操作するのが好ましい。つまり、作業状況に応じて連結ロッド１２の脱着を行うことで、開閉扉１１の開閉に連動させるか否かを適宜に選択すればよい。   In such a case, it is preferable to rotate only the load receiving platform lifting / lowering device 2 with the opening / closing door 11 opened by removing the connecting rod 12. That is, it is only necessary to appropriately select whether or not to interlock with the opening and closing of the opening and closing door 11 by detaching the connecting rod 12 according to the work situation.

さらに、地上よりも高いプラットホームから荷受台昇降装置を使用せずに荷台１に荷物を積込む場合には、格納位置に配置している荷受台昇降装置が積込みの邪魔になるので、荷受台３を起立位置に固縛した状態のままで、荷受台昇降装置２を回動させて作業位置に配置して行う。   Furthermore, when loading a load onto the loading platform 1 without using the loading platform lifting device from a platform higher than the ground, the loading platform lifting device disposed at the storage position obstructs the loading. Is carried out by rotating the load receiving table elevating device 2 and placing it in the working position while keeping the stubbar in a state of being tied to the standing position.

この際、荷物の積込により当該荷物の重みによって車体が沈むことになるが、前述したスライダ４２に対する荷受台３の支持構造によって起立位置に配置された荷受台３の基端３ａの高さがスライダ４２の下端よりも高くなっていることから、荷物の積込により車体が沈んだとしても荷受台昇降装置２の下端がプラットホームの床面に接することはない。   At this time, although the vehicle body sinks due to the weight of the load due to the loading of the load, the height of the base end 3a of the load receiving platform 3 arranged in the upright position by the support structure of the load receiving platform 3 with respect to the slider 42 described above is set. Since it is higher than the lower end of the slider 42, even if the vehicle body sinks due to the loading of the load, the lower end of the load receiving platform lifting / lowering device 2 does not contact the floor surface of the platform.

これにより荷物積込終了後において支障なく荷受台昇降装置２を格納位置に回動配置することができ、この様な積込を行う場合でも作業を円滑に行うことができる。なお、スライダ４２はプラットホームの床面に対して予め高くなるように設定されているため、荷物の積込により車体が沈んだとしても当該スライダ４２の下端が接することはなく支障はない。   As a result, the load receiving platform elevating device 2 can be pivoted to the retracted position without any trouble after the loading of the load, and the work can be performed smoothly even when such loading is performed. In addition, since the slider 42 is set in advance so as to be higher than the floor surface of the platform, even if the vehicle body sinks due to the loading of the load, the lower end of the slider 42 does not come into contact and there is no problem.

また、荷台１に積んだ荷物を荷受台昇降装置を使用せずにプラットホームに降ろそうとする場合にも、荷受台昇降装置２を当該プラットホームと接触することなく作業位置に円滑に配置でき、作業に支障を来すことがない。   In addition, when the load loaded on the loading platform 1 is to be dropped on the platform without using the loading platform lifting device, the loading platform lifting device 2 can be smoothly arranged at the work position without contacting the platform. It will not cause any trouble.

貨物車輌に設けた荷台内格納型の荷受台昇降装置の概略構成を示す斜視図である。It is a perspective view which shows schematic structure of the load receiving stand raising / lowering device of the stowage storage type provided in the cargo vehicle. 作業位置に配置された荷受台昇降装置を示す正面図である。It is a front view which shows the load receiving table raising / lowering apparatus arrange | positioned in a work position. 同じく作業位置に配置された荷受台昇降装置を示す平面図である。It is a top view which similarly shows the load receiving table raising / lowering apparatus arrange | positioned in a work position. スライダに対する荷受台の支持構造を示す側面図である。It is a side view which shows the support structure of the load receiving stand with respect to a slider. スライダに対する荷受台の従来の支持構造を示す側面図である。It is a side view which shows the conventional support structure of the load receiving stand with respect to a slider.

符号の説明Explanation of symbols

１ 荷台
２ 荷受台昇降装置
３ 荷受台
３ａ 基端
３１ ヒンジ
４ 昇降機構
６ 旋回ポスト DESCRIPTION OF SYMBOLS 1 Loading platform 2 Loading platform raising / lowering device 3 Loading platform 3a Base end 31 Hinge 4 Lifting mechanism 6 Turning post

Claims (2)

支柱内にスライダが上下方向に摺動自在に設けられてなる昇降機構により当該スライダの下端部に連設された荷受台が荷台と地上との間で昇降自在に設けられるとともに、これら荷受台及び昇降機構が荷台内に立設された旋回ポストを中心にして荷台内に配置される格納位置と荷台外の作業位置との間で水平方向に回動自在に設けられ、さらに上記荷受台が水平位置と起立位置との間で上下方向に回動自在に設けられた荷台内格納型の荷受台昇降装置において、前記荷受台は、起立位置に配置された基端の高さ位置が水平位置に配置されたときの基端の高さ位置よりも高くなるようにその基端部がヒンジを介して前記スライダに回動自在に支持され、また、起立位置に配置された荷受台が、該荷受台の一側面から側方に突出された係止ピンに、支柱に回動自在に設けられた係止片が係合するとともに、荷受台に設けられた固縛孔に、支柱に突設された固縛ピンが挿入係止して固縛保持されることを特徴とする荷台内格納型の荷受台昇降装置における荷受台支持構造。 A loading platform connected to the lower end of the slider is vertically movable between the loading platform and the ground by an elevating mechanism in which the slider is slidable in the vertical direction in the support column. An elevating mechanism is provided so as to be pivotable in a horizontal direction between a storage position arranged in the cargo bed and a work position outside the cargo bed around a swivel post erected in the cargo bed. In the stowage-type stowage lifting / lowering device provided in the cargo bed that is pivotable in the vertical direction between the position and the standing position, the height of the base end arranged at the standing position is the horizontal position. A base end portion of the base end portion is rotatably supported by the slider via a hinge so as to be higher than a height position of the base end at the time of placement, and a load receiving base placed at an upright position includes the load receiving base. To the locking pin protruding sideways from one side of the base With locking piece rotatably mounted in the strut engages, the lashing holes provided in the receiving platform, the lashing pins projecting from the strut is lashed held inserted into and engaged A load receiving platform support structure in a load receiving platform lifting and lowering device characterized by the above. 前記スライドの上端部に、支柱の前壁内面を転動する第１ガイドローラと、支柱の左右側壁内面を転動する第２ガイドローラが設けられ、また、支柱の下部に、スライダの内側側壁外面を転動するガイドローラと、スライダの後壁外面を転動する第４ガイドローラが設けられることを特徴とする請求項１記載の荷台内格納型の荷受台昇降装置における荷受台支持構造。A first guide roller that rolls on the inner surface of the front wall of the column and a second guide roller that rolls on the inner surfaces of the left and right side walls of the column are provided at the upper end of the slide. 2. The load receiving platform support structure in a load receiving platform lifting device of a stowage type stowage according to claim 1, wherein a guide roller that rolls on the outer surface and a fourth guide roller that rolls on the outer surface of the rear wall of the slider are provided.
JP2003353378A 2003-10-14 2003-10-14 Loading platform support structure in the loading platform lifting device Expired - Fee Related JP4163086B2 (en)

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