JPS6018988Y2 - Freight car door - dual-purpose lifter - Google Patents
Freight car door - dual-purpose lifterInfo
- Publication number
- JPS6018988Y2 JPS6018988Y2 JP288180U JP288180U JPS6018988Y2 JP S6018988 Y2 JPS6018988 Y2 JP S6018988Y2 JP 288180 U JP288180 U JP 288180U JP 288180 U JP288180 U JP 288180U JP S6018988 Y2 JPS6018988 Y2 JP S6018988Y2
- Authority
- JP
- Japan
- Prior art keywords
- platform
- opening
- door
- closing
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Vehicle Step Arrangements And Article Storage (AREA)
Description
【考案の詳細な説明】
この考案は貨物自動車のドアー兼用型リフターに係わり
、ドアー開閉機構とドアー昇降機構を独立して説けてド
アーの昇降に関係無くドアーの開閉操作を可能ならしめ
て荷役作業を簡便になし、同時にプラットホームの接地
時の地上高さを低くすることを目的とする。[Detailed description of the invention] This invention relates to a lifter that can also be used as a door for freight cars.The door opening/closing mechanism and the door lifting/lowering mechanism can be independently operated, making it possible to open/close the door regardless of whether the door is raised or lowered, thereby facilitating cargo handling work. The purpose is to make it simple and at the same time to lower the ground height of the platform when it touches the ground.
次にこの考案の構成および作用を図面の実施例により説
明する。Next, the structure and operation of this invention will be explained with reference to the drawings.
□貨物自動車のドアー謙用型リフターにおいて、ドア
ー開閉機構１をドアー昇降機構と別設し、そのドアー開
閉機構１を、後車輪２の後方においてブラケット３を介
して基端部を車体４に枢支５した油圧シリンダー６と、
この油圧シリンダー６のピストン６ａの先端に後方下端
部が支承７され、かつ、前方上部にＬ状嵌合構８を有す
る開閉カム９と、この開閉カム９の後方上端部に後端が
支承１１され、かつ、Ｌ状嵌合構８に後端部が嵌合する
プラットホーム１２により形成して、その油圧シリンダ
ー６の油圧を抜いてプラットホーム１２の昇降を可能な
らしめ、油圧を加えてプラットホ・−ム１２を開閉し、
かつ、プラットホーム１２の接地時に開閉カム９を後方
へ逃避せしめたものである。□In the door-operating type lifter for a freight vehicle, the door opening/closing mechanism 1 is provided separately from the door lifting/lowering mechanism, and the base end of the door opening/closing mechanism 1 is pivoted to the vehicle body 4 via a bracket 3 behind the rear wheels 2. A supported hydraulic cylinder 6,
An opening/closing cam 9 whose rear lower end is supported 7 at the tip of the piston 6a of the hydraulic cylinder 6 and has an L-shaped fitting mechanism 8 at the upper front thereof, and a rear end supported 11 at the rear upper end of the opening/closing cam 9. The platform 12 is formed by a platform 12 whose rear end fits into the L-shaped fitting structure 8, the hydraulic pressure of the hydraulic cylinder 6 is removed to enable the platform 12 to move up and down, and the platform 12 is moved up and down by applying hydraulic pressure. Open and close the system 12,
Moreover, the opening/closing cam 9 is made to escape rearward when the platform 12 touches the ground.
なお、ドアー昇降機構は適宜に変更できるものであるが
、その一例を示すと、開口部の両側にレール１３を縦設
し、このレール１３に複数のローラー１４を介してガイ
ド杆１５を昇降自在に嵌合し、ガイド杆１５に昇降用油
圧シリンダ−（図示せず）を連結し、ガイド杆１５の下
端にプラットホーム１２の後端両側を枢支してなるもの
である。Note that the door elevating mechanism can be modified as appropriate; one example is that rails 13 are installed vertically on both sides of the opening, and a guide rod 15 is moved up and down via a plurality of rollers 14 on the rails 13. A lifting hydraulic cylinder (not shown) is connected to the guide rod 15, and both rear ends of the platform 12 are pivoted to the lower end of the guide rod 15.
図中１８はプラットホーム１２を水平状態で保持するた
めのアームであり、一端がガイド杆１５に他端がプラッ
トホーム１２に枢支され中央から折畳自在に形成されて
いる。In the figure, reference numeral 18 denotes an arm for holding the platform 12 in a horizontal state, one end of which is pivotally supported by the guide rod 15, the other end of which is pivotally supported by the platform 12, and is foldable from the center.
１７はプラットホーム１２の前端に折畳自在に枢着した
ランプ板、１８はアッパードアーである。17 is a lamp plate pivotally attached to the front end of the platform 12 so as to be freely foldable, and 18 is an upper door.
しかして、第３図Ａのようにドアーが閉じている状態か
ら荷役作業を行うには先ず、ロックバンドル１９の操作
によりロックを解除し、プラットホーム１２を少し手前
へ引例してスイッチをオンにする。Therefore, in order to carry out cargo handling work with the door closed as shown in Fig. 3A, first, unlock the lock bundle 19 by operating it, move the platform 12 forward a little, and turn on the switch. .
するとプラットホーム１２の荷重が開閉カム９とピスト
ン６ａに加わって、第３図Ｂ、 Ｃのようにプラットホ
ーム１２は油圧シリンダー６の油圧に支えられながら静
かに自重で水平状態まで開きアーム１６て支持される。Then, the load of the platform 12 is applied to the opening/closing cam 9 and the piston 6a, and as shown in FIGS. 3B and 3C, the platform 12, supported by the oil pressure of the hydraulic cylinder 6, quietly opens under its own weight to a horizontal state and is supported by the arm 16. Ru.
この場合ピストン６ａはやや後退し開閉カム９はプラッ
トホーム１２に密接した状態で動作しつづける。In this case, the piston 6a moves back slightly and the opening/closing cam 9 continues to operate in close contact with the platform 12.
その後ランプ板１７を開いて水平に腰アッパードアー１
８を開放する。After that, open the lamp plate 17 and horizontally lower the upper door 1.
Open 8.
次にドアー昇降機構を動作すると、アーム１６によりプ
ラットホーム１２を水平支持したガイド杆１５は複数の
ローラー１４とレール１３に案内されて第３図りのよう
に下降し始める。Next, when the door elevating mechanism is operated, the guide rod 15, which horizontally supports the platform 12 by the arm 16, begins to descend as shown in the third diagram, guided by the plurality of rollers 14 and rails 13.
この場合、油圧を抜くことによって開閉カム９がプラッ
トホーム１２に密接したまま油圧シリンダー６が基端枢
支部５を中心に回動して油圧シリンダー６の水平状態に
まで到る。In this case, by removing the hydraulic pressure, the hydraulic cylinder 6 rotates about the base end pivot 5 while the opening/closing cam 9 remains in close contact with the platform 12, and the hydraulic cylinder 6 reaches a horizontal state.
さらに下降するならば、第３図Ｅに示すようにプラット
ホーム１２が油圧シリンダー６の枢支部５よりも下降す
るため開閉カム９はピストン６ａに引張られてプラット
ホーム１２と開閉カム９の支承部１１を中心に後方へ廻
動する。If the platform 12 descends further, as shown in FIG. Rotate backwards around the center.
その後、第３図Ｆのようにピストン６ａに引張られた開
閉カム９はプラットホーム１２の後方へ逃避してプラッ
トホーム１２は低く接地する。Thereafter, as shown in FIG. 3F, the opening/closing cam 9 pulled by the piston 6a escapes to the rear of the platform 12, and the platform 12 touches the ground low.
次に第３図Ｆのようにプラットホーム１２が接地した状
態から上昇するならば、第３図Ｅ、 Ｄのように油圧シ
リンダー６が基端枢支部５を中心に廻動してプラットホ
ーム１２が枢支部５の高さに達すると開閉カム９がプラ
ットホーム１２と密接した状態で上昇する。Next, when the platform 12 rises from the grounded state as shown in FIG. 3F, the hydraulic cylinder 6 rotates around the base pivot 5 and the platform 12 pivots as shown in FIGS. 3E and D. When the height of the branch 5 is reached, the opening/closing cam 9 rises in close contact with the platform 12.
その後、第３図Ｃの状態に達したならば、油圧を加える
とピストン６ａが伸出して開閉カム９が支承部１１を中
心に前方へ廻動してプラットホーム１を押し上げて第３
図Ｃの水平状態から第３図Ａの垂直状態まで廻動するも
のである。After that, when the state shown in FIG.
It rotates from the horizontal position shown in Figure C to the vertical position shown in Figure 3A.
このようにして、この考案はドアー開閉機構１とドアー
昇降機構を単独に設置してドアーの昇降に少しも拘束さ
れずにドアー開閉操作を行うことを可能ならしめたから
その情況に応じた荷役作業が実現して非常に便利であり
、かつ、昇降と開閉の誤動作も無くなって安全である。In this way, this invention allows the door opening/closing mechanism 1 and the door lifting/lowering mechanism to be installed independently, making it possible to open/close the door without being restricted in the slightest by the lifting/lowering of the door. This is very convenient, and it is also safe because there are no malfunctions when raising/lowering or opening/closing.
さらには、第３図Ｆのように開閉カム９が後方に逃避し
た状態でプラットホーム１２が接地するからプラットホ
ーム１２の地上高が非常に低くなって重量物の積下しが
円滑に行われることになりその実用上の効果は大きい。Furthermore, as the platform 12 touches the ground with the opening/closing cam 9 escaping backwards as shown in Fig. 3F, the ground clearance of the platform 12 becomes extremely low, allowing for smooth loading and unloading of heavy objects. The practical effects of this are significant.
図面はこの考案の実施例であり、第１図は斜視図、第２
図は要部の断面図、第３図Ａ〜Ｆは作用状態図である。
２・・・・・・車輪、３・・・・・・ブラケット、４・
・・・・・車体、６・・・・・・油圧シリンダー １０
・・・・・・受板。The drawings show an embodiment of this invention, with the first being a perspective view and the second being a perspective view.
The figure is a sectional view of the main part, and FIGS. 3A to 3F are operation state diagrams. 2...Wheel, 3...Bracket, 4.
...Car body, 6...Hydraulic cylinder 10
・・・・・・Socket plate.
Claims (1)
ドアー謙用型リフターにおいて、前記ドアー開閉機構を
、車体側の縦レールに案内されて昇降するガイド杆の下
端に後端側を枢支したプラットホームと、そのプラット
ホームの後端に支承され前記プラットホームの後端側下
面部との嵌合部を前方上部に有する開閉カムと、前記支
承部の下方箇所の開閉カムにピストンが枢着されるとと
もに前記車体の下方に基端を枢着した油圧シリンダーと
により形成されることを特徴とする貨物自動車のドアー
兼用型リフターIn a truck door lifter in which a door opening/closing mechanism and a lifting mechanism are separately provided, the door opening/closing mechanism is pivoted at its rear end on the lower end of a guide rod that moves up and down while being guided by a vertical rail on the vehicle body side. a platform, an opening/closing cam supported on the rear end of the platform and having a fitting part on the front upper part of the platform with a lower surface on the rear end side of the platform, and a piston pivotally connected to the opening/closing cam at a lower part of the supporting part. and a hydraulic cylinder whose base end is pivotally connected below the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP288180U JPS6018988Y2 (en) | 1980-01-14 | 1980-01-14 | Freight car door - dual-purpose lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP288180U JPS6018988Y2 (en) | 1980-01-14 | 1980-01-14 | Freight car door - dual-purpose lifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56105453U JPS56105453U (en) | 1981-08-17 |
| JPS6018988Y2 true JPS6018988Y2 (en) | 1985-06-08 |
Family
ID=29599683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP288180U Expired JPS6018988Y2 (en) | 1980-01-14 | 1980-01-14 | Freight car door - dual-purpose lifter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6018988Y2 (en) |
-
1980
- 1980-01-14 JP JP288180U patent/JPS6018988Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56105453U (en) | 1981-08-17 |
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