JPS5978100A - Attachment device for cargo-handling car - Google Patents
Attachment device for cargo-handling carInfo
- Publication number
- JPS5978100A JPS5978100A JP18805282A JP18805282A JPS5978100A JP S5978100 A JPS5978100 A JP S5978100A JP 18805282 A JP18805282 A JP 18805282A JP 18805282 A JP18805282 A JP 18805282A JP S5978100 A JPS5978100 A JP S5978100A
- Authority
- JP
- Japan
- Prior art keywords
- pantograph mechanism
- cylinder
- base plate
- attachment device
- cargo
- 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.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、荷役車両のアタッチメント、特にプッシュプ
ルアタッチメントに関スる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to attachments for cargo handling vehicles, particularly push-pull attachments.
従来、プッシュプルアタッチメントは、第１図に示され
るように、車体１に連結された基板２と、該基板２の前
方に伸縮自在に連結されたパンタグラフ機構３と、該パ
ンタグラフ機構３の先端に連結された荷役具４とを具え
、前記パンタグラフ機構３と前記基板２との間にパンタ
グラフ機構３を伸縮するシリンダ５が介設されたもので
ある。なお、１ａはマストで、基板２はマス）ｌａに沿
って昇降する。なお、この構成でシリンダ５の伸縮速度
が一定のため、第５図の如く、パンタグラフ機構のｆｌ
縮速度は、そのリンク３ａの特性゛により前方に伸長す
るほど遅くなり、また後方に後退するほと速くなるので
作業がし■ｔいといった欠点があった。Conventionally, a push-pull attachment includes a base plate 2 connected to a vehicle body 1, a pantograph mechanism 3 telescopically connected to the front of the base plate 2, and a tip of the pantograph mechanism 3, as shown in FIG. A cylinder 5 for expanding and contracting the pantograph mechanism 3 is interposed between the pantograph mechanism 3 and the base plate 2. Note that 1a is a mast, and the substrate 2 is moved up and down along the mast 1a. In addition, since the expansion and contraction speed of the cylinder 5 is constant in this configuration, as shown in FIG.
Due to the characteristics of the link 3a, the speed of contraction becomes slower as it extends forward, and speeds up as it retreats backwards, making it difficult to work.
本発明は、上記の欠点を取除くためになされたもので、
パンクグラフ機構の伸縮速度を常にほぼ一定にする装置
の提供を目的とする。The present invention has been made to eliminate the above-mentioned drawbacks.
The purpose of the present invention is to provide a device that keeps the expansion/contraction speed of a puncture graph mechanism almost constant at all times.
以下、本発明の装置を第１〜５図の実施例に基づいて説
明すると、本発明の装置はく゛車体１に連結された基板
２と、該基板２の前方に伸縮自在に連結されたパンタグ
ラフ棒構３と、該パンタグラフ機構３の先端に連結され
た荷役具４とを具え、前記パンタグラフ機構３と前記基
板２との間にパンタグラフ機構３を伸縮するシリンダ５
が介設されるとともに、前記パンクグラフ機構の伸縮速
度がほぼ一定になるような制御弁６が前記シリンダ５の
油圧回路中に設けられたものである。Hereinafter, the device of the present invention will be explained based on the embodiments shown in Figs. a cylinder 5 that extends and retracts the pantograph mechanism 3 between the pantograph mechanism 3 and the base plate 2;
A control valve 6 is provided in the hydraulic circuit of the cylinder 5 so that the expansion and contraction speed of the puncture graph mechanism is substantially constant.
なお、本実施例において、制御弁６は、弁本体７の中心
部に端部が開放された第−室８と、端部が閉塞された第
二室９とが連続して設けられ、前記第−室８と第二室９
との間に絞り用オリフィス穴１０が形成されている。In this embodiment, the control valve 6 is provided with a first chamber 8 having an open end and a second chamber 9 having a closed end in a continuous manner in the center of the valve body 7. Room 8 and Room 2 9
A throttle orifice hole 10 is formed between the two.
また、前記第−室８と第二室９とに嵌合するスプール１
１の中間部１１ａは、第−室８から第二室９の方向に向
つτ小径になるように円錐形に形成されて嵌合されてい
る。なお、６ａ、６ｂは出入口である。Also, the spool 1 fitted into the first chamber 8 and the second chamber 9
The intermediate portion 11a of the first chamber 1 is formed into a conical shape and is fitted with a small diameter τ in the direction from the first chamber 8 to the second chamber 9. Note that 6a and 6b are entrances and exits.
更に、前記制御弁６は、シリンダ５と略平行にパンタグ
ラフ機構３と基板２との間に連結され、パンクグラフ機
構の伸縮に応じて伸縮するように配設されている。Furthermore, the control valve 6 is connected between the pantograph mechanism 3 and the base plate 2 substantially parallel to the cylinder 5, and is arranged to expand and contract in accordance with the expansion and contraction of the pantograph mechanism.
また、第４図に示されるように、ポンプ１２と方向切替
弁１３とシリンダ５とが一対の油圧回路１４により連結
され、このシリンダ油圧回路１４のどちらか一方の回路
中に制御弁６が設けられている。Further, as shown in FIG. 4, the pump 12, the direction switching valve 13, and the cylinder 5 are connected by a pair of hydraulic circuits 14, and a control valve 6 is provided in one of the cylinder hydraulic circuits 14. It is being
次に、作用を説明すると、ポンプ１２より送られた圧油
は方向切替弁１３を介して油圧回路１４を流れ、シリン
ダ５を伸長してパンタグラフ機構３を伸長すべくリンク
３ａを倒して行くときは、制御弁６も伸長するので、ス
プール１１の１罪部１１ａも左動してオリフィス穴１０
の開口面積が途々に大きくなりパンタグラフ機構：３の
沖長速度は略−・定に保持される。また逆にパンタグラ
フ機構３か短縮するときはオリフィス穴１０の面積は徐
々に小さくなるので、短縮速度も略一定となる。Next, to explain the operation, when the pressure oil sent from the pump 12 flows through the hydraulic circuit 14 via the direction switching valve 13, and the cylinder 5 is extended to extend the pantograph mechanism 3, the link 3a is pushed down. Since the control valve 6 also expands, the first part 11a of the spool 11 also moves to the left to open the orifice hole 10.
As the opening area of the pantograph mechanism 3 gradually increases, the off-shore speed of the pantograph mechanism 3 is kept approximately constant. On the other hand, when the pantograph mechanism 3 is shortened, the area of the orifice hole 10 gradually becomes smaller, so that the speed of shortening is also approximately constant.
このようにスプール１１が自動的に作動するので、シリ
ンダ５を作動する油量は、パンタグラフ機構３の伸縮速
度が略一定になるように制御される。Since the spool 11 is automatically operated in this manner, the amount of oil that operates the cylinder 5 is controlled so that the expansion and contraction speed of the pantograph mechanism 3 is approximately constant.
以上の説明から明らかな通り、本発明の装置は、車体に
連結された基板と、該基板の前方に伸縮自在に連結され
たパンタグラフ機構と、該パンクグラフ機構の先端に連
結された荷役具とを具え、前記パンタグラフ機構と前記
基板との間にパンクグラフ機構を伸縮するシリンダが介
設されるとともに、前記パンタグラフ機構の伸縮速度が
ほぼ一定になるような制御弁が前記シリンダの油圧回路
中に設けられたものであり、制Ｍ１弁のオリフィス穴の
開口面積がパンタグラフ機構Ｚの伸縮に従って変化し、
該パンタグラフ機構ノの伸縮速度を一定に保つ装置を提
供できるといった優れた効果がある。As is clear from the above description, the device of the present invention includes a base plate connected to a vehicle body, a pantograph mechanism telescopically connected to the front of the base plate, and a cargo handling tool connected to the tip of the pantograph mechanism. A cylinder for expanding and contracting the pantograph mechanism is interposed between the pantograph mechanism and the base plate, and a control valve is provided in the hydraulic circuit of the cylinder so that the expansion and contraction speed of the pantograph mechanism is substantially constant. The opening area of the orifice hole of the control M1 valve changes according to the expansion and contraction of the pantograph mechanism Z,
This has the advantage of being able to provide a device that keeps the expansion and contraction speed of the pantograph mechanism constant.
４・、 図面の簡単な説明
第１図は荷役車両にアクッチメント装置を取１寸けた側
面図、第２図、第３図は本発明に係る制御弁を示す断面
図、第４図は、本発明装置の油圧回路図、第５図はパン
タグラフ機構の作用説明図である。4. Brief description of the drawings Fig. 1 is a side view of a cargo handling vehicle with an actuation device installed by one inch, Figs. A hydraulic circuit diagram of the invention device, FIG. 5 is an explanatory diagram of the operation of the pantograph mechanism.
１：車体、２：基板、３：パンタグラフ機構、４：荷役
具、５ニジリンダ、６：制御弁、１０：絞り用オリフィ
ス穴、１１：スプーノベ １１ａ：その中間部。1: Vehicle body, 2: Board, 3: Pantograph mechanism, 4: Cargo handling tool, 5 Niji cylinder, 6: Control valve, 10: Throttle orifice hole, 11: Spoon knob 11a: Intermediate portion thereof.
出 願 人 東洋運搬機株式会社 代理人 中 村恒久 第２図 第３図 第４１；４Applicant: Toyo Yusoki Co., Ltd. Agent Tsunehisa Nakamura Figure 2 Figure 3 41st; 4th
Claims (1)
結されたパンタグラフ機構と、該パンタグラフ機構の先
端に連結された荷役具とを具え、前記パンタグラフ機構
と前記基板との間にパンタグラフ機構を伸縮するシリン
ダが介設されるとともに、前記パンタグラフ機構の伸縮
速度がほぼ一定になるような制御弁が前記シリンダの油
圧回路中に設けられたことを特徴とする荷役車両のアタ
ッチメント装置。A pantograph mechanism is provided between the pantograph mechanism and the base plate, the pantograph mechanism comprising a base plate connected to the vehicle body, a pantograph mechanism telescopically connected to the front of the base plate, and a cargo handling tool connected to the tip of the pantograph mechanism. An attachment device for a cargo handling vehicle, characterized in that a cylinder for expanding and contracting the pantograph mechanism is interposed, and a control valve is provided in a hydraulic circuit of the cylinder so that the expansion and contraction speed of the pantograph mechanism is substantially constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18805282A JPS5978100A (en) | 1982-10-25 | 1982-10-25 | Attachment device for cargo-handling car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18805282A JPS5978100A (en) | 1982-10-25 | 1982-10-25 | Attachment device for cargo-handling car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5978100A true JPS5978100A (en) | 1984-05-04 |
Family
ID=16216840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18805282A Pending JPS5978100A (en) | 1982-10-25 | 1982-10-25 | Attachment device for cargo-handling car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492697A (en) * | 1990-08-09 | 1992-03-25 | Okayama Pref Gov | Rotary drum type washing machine |
-
1982
- 1982-10-25 JP JP18805282A patent/JPS5978100A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492697A (en) * | 1990-08-09 | 1992-03-25 | Okayama Pref Gov | Rotary drum type washing machine |
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