JP4149254B2 - Slide synchronization mechanism of the load receiving platform in the retractable load receiving platform lifting device - Google Patents

Slide synchronization mechanism of the load receiving platform in the retractable load receiving platform lifting device Download PDF

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Publication number
JP4149254B2
JP4149254B2 JP2002367474A JP2002367474A JP4149254B2 JP 4149254 B2 JP4149254 B2 JP 4149254B2 JP 2002367474 A JP2002367474 A JP 2002367474A JP 2002367474 A JP2002367474 A JP 2002367474A JP 4149254 B2 JP4149254 B2 JP 4149254B2
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Japan
Prior art keywords
load receiving
slide
receiving platform
vehicle
retractable
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JP2002367474A
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JP2004196135A (en
Inventor
威 古川
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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、車輌の荷箱に立設された左右一対の支柱に沿って昇降自在に設けられた荷受台が、荷箱下方の格納位置と荷箱後方の作業位置との間でスライド可能に構成された格納式荷受台昇降装置に関し、具体的には荷受台をスライドさせる際のスライド同調機構に関するものである。
【0002】
【従来の技術】
従来、車輌の荷箱に立設された左右一対の支柱内に設けられたスライダを介して荷受台が当該支柱に沿って昇降自在に設けられるとともに、荷受台が荷箱下方の格納位置と荷箱後方の作業位置との間で左右一対のスライドレールに沿って前後にスライド可能に構成された格納式荷受台昇降装置が提供されている(例えば、特許文献1参照。)。
【0003】
【特許文献1】
実開平4−127027号公報
【0004】
【発明が解決しようとする課題】
しかしながら、上記従来のように荷受台を左右一対のスライドレールに沿って前後にスライドさせるものでは、例えば作業位置から格納位置にスライドさせる際に、荷受台の左右両側部が前後方向にずれると、左右両側部の両方がスライドレールに旨く入らずにスライド動作ができなかったり、また、荷受台の左右両側部と各スライドレールとの間に生じる摩擦やゴミなどの影響により、荷受台の両側部間に抵抗差が生じるとスライドする際に前後方向にずれを起こす。
【0005】
このように荷受台が左右で前後にずれて斜めになった場合にはスムーズなスライド動作が困難になる。この結果、荷受台の左右のずれを直す作業が必要になり作業性の低下を招くとともに、スライド途中でかみ込んで止まって動かなくなることもあり、スライドレールや荷受台などの損傷を招くという問題があった。
【0006】
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、荷受台の左右両側部のスライド動作を同調させることで、荷受台を円滑にスライドさせることのできる格納式荷受台昇降装置における荷受台のスライド同調機構を提供することにある。
【0007】
【課題を解決するための手段】
請求項1に係る発明の格納式荷受台昇降装置における荷受台のスライド同調機構は、車輌の荷箱に立設された左右一対の支柱内に設けられたスライダを介して荷受台が当該支柱に沿って昇降自在に設けられるとともに、この荷受台が荷箱下方の格納位置と荷箱後方の作業位置との間で左右一対のスライドレールに沿って前後にスライド可能に構成された格納式荷受台昇降装置において、前記荷受台のスライド部には、その両側部前後にスプロケットが水平軸回りに回転自在にそれぞれ支持され、それぞれ一側部側前後のスプロケットには、同じ一側部側に位置するスライダ側に両端が連結されたチェーンが巻回されてなるものである。
【0008】
請求項2に係る発明の格納式荷受台昇降装置における荷受台のスライド同調機構では、前記スプロケットは、車輌前側の左右のスプロケットが連動軸により支持されるとともに、車輌後側の左右のスプロケットが個別に支持され、さらに、上記車輌後側の左右の各スプロケットは、チェーンの張力が調整可能なように前後に移動可能に支持されている。
【0009】
請求項3に係る発明の格納式荷受台昇降装置における荷受台のスライド同調機構では、前記荷受台は、車輌後側部が車輌前側部上に折り畳み自在に構成され、前記格納位置では、折り畳んだ後端部が前記スライダよりも後方に突出して配置されている。
【0010】
【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。
【0011】
図1は、格納式荷受台昇降装置を示している。
【0012】
格納式荷受台昇降装置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3及び図4参照)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。
【0013】
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。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。
【0014】
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、前支柱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。
【0015】
昇降シリンダ7は、図1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。
【0016】
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。
【0017】
荷受台5は、前後2つに分割された基端側荷受部材(スライド部)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。
【0018】
ところで、基端側荷受部材51には、その左右両側にガイド溝(図示省略)が前後方向に形成されている。一方、各スライダ4の下端部からはブラケット41が支柱3の後方に突出配置されており、図3及び図4に示すようにこのブラケット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。
【0019】
また、図3及び図4に示すようにスライダ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及び図4参照)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3参照)に配置した際には基端側荷受部材51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はガイド溝の前方終端位置に配置されている。
【0020】
さらに、基端側荷受部材51の基端部には第2ガイドローラ44が設けられている。第2ガイドローラ44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44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。
【0021】
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及び図4に示す格納位置と、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51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3に示す作業位置とに配置することができる。なお、図3及び図4では先端側荷受部材52を省略して基端側荷受部材51のみを図示している。
【0022】
そして、上記格納位置においては、折り畳んだ荷受台5の後端部がブラケット41よりも車輌の後方に突出した状態で配置されている。従って、走行時においては格納位置に配置した荷受台5の後端部がバンパー的な役目も果たすことができ、これにより走行時の安全性を確保することができる。
【0023】
さらに、荷受台5とスライダ4との間には、図2乃至図4に示すような同調機構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と作業位置との間で荷受台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、基端側荷受部材51の左右両側部の前後にそれぞれ設けられた各スプロケット11、12と、各一側部側の前後のスプロケット11、12に巻回された左右一対のチェーン13とで構成されている。
【0024】
前記スプロケット11、12は、図3及び図4に示すように車輌前側の左右のスプロケット11が水平連動軸11aにより一体的に支持されるとともに、車輌後側の左右のスプロケット12がそれぞれ水平軸12aにより個別に支持されている。
【0025】
さらに、上記車輌後側の左右の各スプロケット12は、各チェーン13の張力が調整可能なようにその水平軸12aが前後に移動可能に支持されている。
【0026】
前記チェーン13は、その両端が前記荷受台5を支持するスライダ側となるブラケット41に止着されている。具体的には、例えば荷受台5の落下防止用としてブラケット41に設けられているフック41aを利用して当該フック41aにチェーン13の両端を止着している。
【0027】
また、チェーン13は、その下部側が基端側荷受部材51の側部内の空間を利用して配置されるとともに、上部側が基端側荷受部材51の側部上方に配置された状態で上述したように巻回されている。
【0028】
次に、このように構成された格納式荷受台昇降装置1の動作について説明する。
【0029】
図2に示すように荷受台5が格納位置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44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に配置される。
【0030】
このようにして荷受台5を格納位置から作業位置にスライドさせる際において、左右前後のスプロケット11、12が、荷受台5のスライド動作に伴って左右一対のチェーン13の巻回位置を変えながらその前部のスプロケット11によって左右で同調して回転することで、荷受台5が左右のスライドレール21に対して前後にずれることなく、左右両側部が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44を通じてスムーズにスライドさせることができる。
【0031】
次に、この作業位置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。
【0032】
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の後方から当該荷箱2の後部下方に押し込むことで格納位置に配置する。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44を通じてその両側部を同調させながらスムーズにスライドさせて格納位置に配置することができる。
【0033】
なお、上述した実施の形態は、あくまでも本発明の好適な実施態様を示すものであって、本発明はこれに限定されることなく、その範囲内において種々設計変更可能である。
【0034】
例えば、本実施の形態では、荷受台5を手動により格納位置と作業位置との間でスライドさせるようにしたものについて説明したが、伸縮シリンダやモータ等の適宜なアクチュエータを用いて荷受台5をスライド作動させるようにしてもよい。
【0035】
また、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、折り畳み式でない所謂一枚ものでもよく、又は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。
【0036】
【発明の効果】
以上述べたように、本発明の格納式荷受台昇降装置における荷受台のスライド同調機構によれば、スライダと荷受台とに亘って、荷受台の左右両側部を同調させながらスライドレールに沿って前後に移動させるためのスプロケットとチェーンを備えた同調機構を設けたことで、この同調機構により荷受台を左右でずれなくスムーズにスライドさせることができる。
【図面の簡単な説明】
【図1】格納式荷受台昇降装置の全体の概略構成を示す斜視図である。
【図2】格納位置に配置された格納式荷受台昇降装置を示す側面図である。
【図3】作業位置に配置された格納式荷受台昇降装置を示す拡大の側面図である。
【図4】格納位置に配置された格納式荷受台昇降装置を示す拡大の正面図である。
【符号の説明】
1 格納式荷受台昇降装置
2 荷箱
21 スライドレール
3 支柱
4 スライダ
5 荷受台
51 基端側荷受部材(スライド部)
10 同調機構
11、12 スプロケット
13 チェーン
[0001]
BACKGROUND OF THE INVENTION
According to the present invention, a load receiving base provided so as to be movable up and down along a pair of left and right columns provided on a cargo box of a vehicle is slidable between a storage position below the cargo box and a work position behind the cargo box. More specifically, the present invention relates to a slide synchronization mechanism for sliding a load receiving table.
[0002]
[Prior art]
Conventionally, a load receiving table is provided so as to be able to move up and down along the support column via a slider provided in a pair of left and right columns that are erected on the cargo box of the vehicle. 2. Description of the Related Art There is provided a retractable cradle lifting device configured to be slidable back and forth along a pair of left and right slide rails with a work position behind the box (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 4-1207027 [0004]
[Problems to be solved by the invention]
However, in the case of sliding the load receiving table back and forth along the pair of left and right slide rails as in the conventional case, for example, when the left and right side portions of the load receiving table are displaced in the front and rear direction when sliding from the working position to the storage position, Both sides of the cargo cradle cannot be slid because both sides of the left and right sides do not enter the slide rail well, and both sides of the load cradle are affected by friction and dust generated between the left and right sides of the load cradle and each slide rail. If there is a resistance difference between them, it will shift in the front-rear direction when sliding.
[0005]
In this way, when the load receiving platform is shifted to the left and right and inclined and becomes slanted, smooth sliding operation becomes difficult. As a result, it is necessary to correct the left / right displacement of the load receiving table, which leads to a decrease in workability, and it may get stuck in the middle of the slide and stop and move, causing damage to the slide rail, load receiving table, etc. was there.
[0006]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a retractable load receiving device that can smoothly slide the load receiving table by synchronizing the sliding operations of the left and right sides of the load receiving table. An object of the present invention is to provide a slide synchronizing mechanism for a load receiving table in a table lifting device.
[0007]
[Means for Solving the Problems]
The slide synchronization mechanism of the load receiving platform in the retractable load receiving elevator apparatus according to claim 1 is configured such that the load receiving platform is attached to the support column via a slider provided in a pair of left and right columns that are erected on the cargo box of the vehicle. A retractable cradle that is slidable back and forth along a pair of left and right slide rails between the retracted position below the load box and the work position behind the load box. In the lifting device, sprockets are supported on the slide part of the load receiving table so as to be rotatable around the horizontal axis on both sides of the slide part, and the sprockets on the one side part are located on the same side part side. A chain having both ends connected to the slider is wound.
[0008]
In the slide receiving mechanism of the load receiving platform in the retractable load receiving elevator according to the second aspect of the invention, the sprocket is supported by the left and right sprockets on the front side of the vehicle by the interlocking shaft, and the left and right sprockets on the rear side of the vehicle are individually provided. Further, the left and right sprockets on the rear side of the vehicle are supported so as to be movable back and forth so that the tension of the chain can be adjusted.
[0009]
In the slide synchronization mechanism of the load receiving platform in the retractable load receiving elevator apparatus according to claim 3, the load receiving platform is configured such that the rear side portion of the vehicle is foldable on the front side portion of the vehicle and folded at the storage position. A rear end portion is disposed so as to protrude rearward from the slider.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 shows a retractable load receiving device lifting device.
[0012]
The retractable load receiving table lifting / lowering device 1 includes a pair of left and right columns 3 erected at the rear end of a cargo box 2 of a vehicle, and a slider 4 inserted into the column 3 so as to be movable up and down (see FIGS. 3 and 4). ), A load receiving platform 5 supported by the lower ends of the left and right sliders 4, and a lifting cylinder 7 connected to each slider 4 via a wire 6.
[0013]
Specifically, the support column 3 is formed of a hollow long body having a rectangular cross section, and the slider 4 is disposed therein. 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.
[0014]
One end of each wire 6 is fixed to the upper end of the left and right sliders 4. The wire 6 is guided upward from the slider 4, folded downward by a sheave 33 provided on the upper portion of the support 3, guided downward on the front side, and then sheaveed from the lower portion of the front support 3 (not shown). And the other end is appropriately fixed.
[0015]
As shown in FIG. 1, the elevating cylinder 7 is disposed at the front portion in the cross member 8 disposed between the support columns 3, and the wire 6 disposed as described above is extended and retracted by the elevating cylinder 7. The slider 4 is moved up and down by being drawn out from or pulled into the column 3.
[0016]
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.
[0017]
The load receiving platform 5 includes a proximal end side load receiving member (sliding portion) 51 and a distal end side load receiving member 52 which are divided into two front and rear sides, and the proximal end side load receiving member 51 and the distal end side load receiving member 52 are connected 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.
[0018]
Incidentally, guide grooves (not shown) are formed in the front-rear direction on the left and right sides of the base-end side cargo receiving member 51. On the other hand, a bracket 41 protrudes from the lower end of each slider 4 to the rear of the support column 3, and the first guide roller 42 provided at the lower end of the bracket 41 as shown in FIGS. It is arranged to roll freely in the guide groove. 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.
[0019]
Further, as shown in FIGS. 3 and 4, the contact roller 43 provided at the lower end of the slider 4 slides the load receiving platform 5 backward from a storage position (see FIGS. 2 and 4), which will be described later, to the rear. When disposed at the projecting position (see FIG. 3), the base end portion of the base end side load receiving member 51 is supported, and in combination with the support from below by the first guide roller 42, the load receiving base. 5 is held in a horizontal state. At this time, the first guide roller 42 is disposed at the front end position of the guide groove.
[0020]
Furthermore, a second guide roller 44 is provided at the base end portion of the base end side cargo receiving member 51. The second guide roller 44 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 portion of the cargo box 2, and the load receiving platform 5 is slid through the second guide roller 44. 21 so that it can move smoothly.
[0021]
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 the rear side of the slide rail 21. The front-end side load receiving member 52 that is slid and folded is horizontally deployed on the extension of the base-end side load receiving member 51 and moved up and down between the ground and the floor surface of the load box 2 as shown in FIG. Can be arranged. 3 and 4, the distal end side receiving member 52 is omitted, and only the proximal end side receiving member 51 is illustrated.
[0022]
In the retracted position, the rear end portion of the folded load receiving platform 5 is disposed in a state of protruding rearward of the vehicle from the bracket 41. Accordingly, the rear end portion of the load receiving platform 5 arranged at the retracted position can also serve as a bumper during traveling, thereby ensuring safety during traveling.
[0023]
Further, a tuning mechanism 10 as shown in FIGS. 2 to 4 is provided between the load receiving tray 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 and the working position as described above. Each of the sprockets 11 and 12 provided on the front and rear sides, and a pair of left and right chains 13 wound around the front and rear sprockets 11 and 12 on each side.
[0024]
As shown in FIGS. 3 and 4, the sprockets 11 and 12 are integrally supported by the horizontal interlocking shaft 11a on the left and right sprockets 11 on the front side of the vehicle, and the left and right sprockets 12 on the rear side of the vehicle are respectively connected to the horizontal shaft 12a. Is supported individually.
[0025]
Further, the left and right sprockets 12 on the rear side of the vehicle are supported so that their horizontal shafts 12a can move back and forth so that the tension of each chain 13 can be adjusted.
[0026]
Both ends of the chain 13 are fastened to brackets 41 on the slider side that support the load receiving platform 5. Specifically, both ends of the chain 13 are fastened to the hook 41a using, for example, a hook 41a provided on the bracket 41 for preventing the load receiving stand 5 from falling.
[0027]
Further, the chain 13 is arranged using the space in the side portion of the base end side load receiving member 51 on the lower side, and the upper side is arranged above the side portion of the base end side load receiving member 51 as described above. It is wound around.
[0028]
Next, the operation of the retractable load receiving table elevating device 1 configured as described above will be described.
[0029]
As shown in FIG. 2, in a state where the load receiving platform 5 is disposed at the storage position, 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 44 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. Thus, it is arranged at a work position protruding rearward of the packing box 2.
[0030]
In this way, when the load receiving platform 5 is slid from the storage position to the working position, the left and right sprockets 11 and 12 change their winding positions of the pair of left and right chains 13 as the load receiving table 5 slides. By rotating in synchronism with the left and right by the sprocket 11 at the front, the left and right sides slide in synchronism with each other without the load receiving platform 5 being displaced back and forth with respect to the left and right slide rails 21. Thereby, the load receiving platform 5 can be smoothly slid through the first guide roller 42 and the second guide roller 44.
[0031]
Next, the front end side load receiving member 52 of the load receiving platform 5 folded at this working position 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.
[0032]
When the cargo loading / unloading operation is completed, the cargo receiving platform 5 is folded by an operation reverse to the above-described operation, and is placed at the storage position by being pushed downward from the rear of the cargo box 2 to the rear of the cargo box 2. Also at this time, the receiving platform 5 can be smoothly slid while being synchronized with each other through the first guide roller 42 and the second guide roller 44 by the synchronization mechanism 10 and can be arranged at the storage position.
[0033]
The above-described embodiment is merely a preferred embodiment of the present invention, and the present invention is not limited to this, and various design changes can be made within the scope.
[0034]
For example, in the present embodiment, the description has been given of the case where the load receiving platform 5 is manually slid between the storage position and the working position. However, the load receiving platform 5 is mounted using an appropriate actuator such as an expansion cylinder or a motor. A slide operation may be performed.
[0035]
Further, although the description has been given with respect to a structure in which the load receiving platform 5 is folded in half, the load receiving platform 5 is not limited to being folded in two, but may be a so-called single-folded one that is not foldable, or configured to be folded in three or more. May be.
[0036]
【The invention's effect】
As described above, according to the slide synchronization mechanism of the load receiving table in the retractable load receiving apparatus of the present invention, the left and right sides of the load receiving table are synchronized along the slide rail across the slider and the load receiving table. By providing a synchronizing mechanism including a sprocket and a chain for moving back and forth, the receiving platform can be smoothly slid from side to side without deviation by this synchronizing mechanism.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall schematic configuration of a retractable cargo receiver lifting device.
FIG. 2 is a side view showing a retractable load receiving table lifting device disposed in a storage position.
FIG. 3 is an enlarged side view showing a retractable load receiving table lifting device disposed at a work position.
FIG. 4 is an enlarged front view showing a retractable load receiving table lifting device disposed at a storage position.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Retractable load receiving device lifting / lowering device 2 Packing box 21 Slide rail 3 Support column 4 Slider 5 Load receiving stand 51 Base end side load receiving member (slide part)
10 Tuning mechanism 11, 12 Sprocket 13 Chain

Claims (3)

車輌の荷箱に立設された左右一対の支柱内に設けられたスライダを介して荷受台が当該支柱に沿って昇降自在に設けられるとともに、この荷受台が荷箱下方の格納位置と荷箱後方の作業位置との間で左右一対のスライドレールに沿って前後にスライド可能に構成された格納式荷受台昇降装置において、
前記荷受台のスライド部には、その両側部前後にスプロケットが水平軸回りに回転自在にそれぞれ支持され、それぞれ一側部側前後のスプロケットには、同じ一側部側に位置するスライダ側に両端が連結されたチェーンが巻回されてなることを特徴とする格納式荷受台昇降装置における荷受台のスライド同調機構。
A load receiving table is provided so as to be movable up and down along the support column via a slider provided in a pair of left and right columns that are erected on the cargo box of the vehicle. In the retractable load receiving device lifting and lowering device configured to be slidable back and forth along a pair of left and right slide rails with the rear working position,
Sprockets are supported on the slide part of the load receiving table so as to be rotatable about a horizontal axis on both sides of the slide part, respectively, and the sprockets on the front and back sides of the one side respectively have both ends on the slider side located on the same side part side. A slide synchronization mechanism of a load receiving platform in a retractable load receiving platform lifting device, wherein a chain connected to each other is wound.
前記スプロケットは、車輌前側の左右のスプロケットが連動軸により支持されるとともに、車輌後側の左右のスプロケットが個別に支持され、さらに、上記車輌後側の左右の各スプロケットは、チェーンの張力が調整可能なように前後に移動可能に支持されたことを特徴とする請求項1記載の格納式荷受台昇降装置における荷受台のスライド同調機構。In the sprocket, the left and right sprockets on the front side of the vehicle are supported by interlocking shafts, and the left and right sprockets on the rear side of the vehicle are individually supported. Further, the chain tension of each of the left and right sprockets on the rear side of the vehicle is adjusted. The slide synchronizing mechanism of the load receiving platform in the retractable load receiving platform lifting and lowering device according to claim 1, wherein the slide receiving mechanism is supported so as to be movable back and forth as much as possible. 前記荷受台は、車輌後側部が車輌前側部上に折り畳み自在に構成され、前記格納位置では、折り畳んだ後端部が前記スライダよりも後方に突出して配置されてなることを特徴とする請求項1又は2記載の格納式荷受台昇降装置における荷受台のスライド同調機構。The back of the vehicle is configured to be foldable on the front side of the vehicle, and the folded rear end of the load receiving stand is disposed to protrude rearward from the slider at the storage position. 3. A slide synchronization mechanism of a load receiving table in the retractable load receiving lift apparatus according to item 1 or 2.
JP2002367474A 2002-12-19 2002-12-19 Slide synchronization mechanism of the load receiving platform in the retractable load receiving platform lifting device Expired - Fee Related JP4149254B2 (en)

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