JPS58191641A - Sequential operation controller for tractor - Google Patents
Sequential operation controller for tractorInfo
- Publication number
- JPS58191641A JPS58191641A JP7434782A JP7434782A JPS58191641A JP S58191641 A JPS58191641 A JP S58191641A JP 7434782 A JP7434782 A JP 7434782A JP 7434782 A JP7434782 A JP 7434782A JP S58191641 A JPS58191641 A JP S58191641A
- Authority
- JP
- Japan
- Prior art keywords
- lift arm
- trailer
- contact
- cylinder
- switch
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/28—Tipping body constructions
- B60P1/283—Elements of tipping devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、トラクタの順次作動制御装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sequential operation control device for a tractor.
２
トラクタの車体枠上に支柱を立設し、この支柱のに充分
な角度までトレーラを傾倒できるようにしたトラクタが
使われているが、長尺のトレーラを傾倒する際、トラク
タが横転しないようにトラクタ側に支持脚を設け、前記
支持脚が接地した後る場合トラクタが横転するといった
危険性がないにもかかわらず、前記支持脚が接地した後
でないと、リフト腕が起伏できず、そのため長尺でない
ｅトレーラを傾動するのに余分な時間がかかっていた。2. Tractors are used in which a prop is installed on the body frame of the tractor so that the trailer can be tilted to a sufficient angle. Although a support leg is provided on the tractor side and there is no risk of the tractor overturning if the support leg touches the ground, the lift arm cannot be raised or lowered until after the support leg has touched the ground. It took extra time to tilt the e-trailer, which was not long.
本発明はかかる点に鑑みてなされたもので、以下、図
面により、本発明の詳細な説明すると、Ａはトラクタで
その車体枠１の左右両側にはアウトリガ（図示なし）を
介し支持脚２が装着され、この支持脚２は支持脚張出用
シリンダ６によって左右方向に張り出される。 また支
持脚２の下端には接地輪４が軸支されており、この支持
脚２にＡ６
内蔵された支持脚接地用シリンダ戸にょ−）て前部接地
輪４を昇降自在にしている。The present invention has been made in view of these points, and will be described in detail below with reference to the drawings. A is a tractor, and support legs 2 are attached to both left and right sides of a vehicle body frame 1 via outriggers (not shown). The supporting leg 2 is mounted, and the supporting leg 2 is extended in the left-right direction by the supporting leg extending cylinder 6. Further, a grounding ring 4 is pivotally supported at the lower end of the support leg 2, and a support leg grounding cylinder door (A6) built into this support leg 2 allows the front grounding ring 4 to be moved up and down.
一方、車体枠１には支柱６が立設されており、この支柱
６の先端にはリフト腕７の基端が枢支連結され、またこ
のリフト腕７の他端には、筒部材８が固着されている。On the other hand, a column 6 is erected on the body frame 1, and the base end of a lift arm 7 is pivotally connected to the tip of this column 6, and a cylindrical member 8 is attached to the other end of this lift arm 7. It is fixed.
ところで、前記ＩＪ７ＮＢＡ１７の途中と、支柱６間に
は（１上装置すなわち油圧シリンダ９が配設されており
、この油圧シリンダ９の伸縮作動により、前記リフト腕
７を起伏させることができる。By the way, a hydraulic cylinder 9 is disposed between the IJ7NBA 17 and the support column 6, and the lift arm 7 can be raised and lowered by the expansion and contraction of the hydraulic cylinder 9.
前記筒部材８には摺動部材１０が嵌挿され、この摺動部
月１０の先端には連結器１１が軸支されている。 そし
て前記筒部材８と摺動部材１０との間には、（１上装置
すなわち油圧シリンダ１２が配設されており、この油圧
シリンダ１２の伸縮作動により摺動部材１０をリフト腕
７より伸縮することができる。 したがって、前記連結
器１１とトレーラの前端とが連結されている時には、リ
フト腕７及び摺動部材１０の協働作用あるいはリフト腕
７の単独作用によりトレーラを傾倒することができる。A sliding member 10 is fitted into the cylindrical member 8, and a coupler 11 is pivotally supported at the tip of the sliding member 10. A hydraulic cylinder 12 is disposed between the cylindrical member 8 and the sliding member 10, and the sliding member 10 is extended and contracted by the lift arm 7 by the expansion and contraction operation of the hydraulic cylinder 12. Therefore, when the coupler 11 and the front end of the trailer are connected, the trailer can be tilted by the cooperative action of the lift arm 7 and the sliding member 10 or by the independent action of the lift arm 7.
尚、図中１６は長尺のトレーラ、１４は長尺でないトレ
ーラであり、また１５は長尺のトレーラ１６の後車幅乗
土台であり、長尺のトレーラ１３を傾倒した際、長尺の
トレーラ１３の後端が地面に接地することを防止するも
のである゛。In the figure, 16 is a long trailer, 14 is a non-long trailer, and 15 is a rear vehicle width platform for the long trailer 16. When the long trailer 13 is tilted, the long trailer 13 is tilted. This prevents the rear end of the trailer 13 from touching the ground.
次に油圧回路について第３図により説明すると、Ｐは油
圧ホンブ、Ｔはオイルリザーバ、■］は支持脚接地用シ
リンダ５の電磁切換弁、■２は支持脚張出用シリンダ３
の電磁切換弁、■６は摺動部材伸縮用シリンダ１２の電
磁切換弁、ｖ４はリフト腕起伏用シリンダ９の電磁切換
弁で、電磁切換弁ｖ１には弁スプール操作用ソレノイド
５ＯＩ１２゜ｓ ｏ ’Ｌ ３を、電磁切換弁ｖ２には
同じ（ＳＯＬｌ。Next, the hydraulic circuit will be explained with reference to FIG. 3. P is the hydraulic horn, T is the oil reservoir, ■] is the electromagnetic switching valve of the support leg grounding cylinder 5, and ■2 is the support leg extension cylinder 3.
6 is an electromagnetic switching valve for the cylinder 12 for extending and retracting the sliding member, v4 is an electromagnetic switching valve for the cylinder 9 for raising and lowering the lift arm, and the electromagnetic switching valve v1 has a solenoid 5OI12゜so' for operating the valve spool. L 3 is the same for electromagnetic switching valve v2 (SOLl.
５ＯＬ４を、電磁切換弁ｖ６には同じ＜：５ＯＬ７゜５
ＯＬ８を、電磁切換弁Ｖ４には５ＯＬ５．Ｓ。5OL4, same for electromagnetic switching valve v6 <:5OL7゜5
OL8, and 5OL5. for the solenoid switching valve V4. S.
ＴＪ６を有し、以上電磁切換弁’Ｖ１．Ｖ２．ｖ３及び
Ｖ４で四速集合バルブＶを形成している。TJ6, and the above electromagnetic switching valve 'V1. V2. V3 and V4 form a four-speed collective valve V.
尚、図中ｖ５はリリーフ弁、０１，０２，０３゜ｏ４．
ａ５はチェック弁である。In addition, v5 in the figure is a relief valve, 01, 02, 03° o4.
a5 is a check valve.
塵５
電気回路について第４図により説明すると、ＢＴはバッ
テリーなどの１１諒、ＳＷｌは電源スィッチ、ｓｗ２は
支持脚張出、接地用スイッチ、ＳＷ３はリフト腕起伏用
スイッチ、ＳＷ４は摺動部材伸縮用スイッチ、ＳＷ５は
トレーラの長さにより働く電気接点、ＬＳ３．ＬＳ４は
支持脚２，２の接地時に働く電気接点、ＬＳ５．ＬＳ６
は支持脚２．２の離接時の上方限界位置で鋤く電気接点
である。 ｒ、ｓ７はり７ト腕７の起立限界位置で働く
電気接点、ＬＳ８はリフト腕７の伏倒限界位置で働く電
気接点、ｚ、ｓ９はリフト腕７の中間位置で働く電気接
点、Ｌｓｌｏは摺動部材１０の伸長限界位置で−く電気
接点、ＬＳｌ １は摺動部材１０の収縮限界位置で働く
電気接点である。 ＯＲ１・・・・ＱＲｌｌは電磁継電
器（以下リレーという）であって、それぞれ接点ｃｒｌ
・・・・ａｒｌｌを有する。 ＰＬｌは電源０Ｎｆｔ衷
示するパイ０．）、ｐｒ、２はり７ト腕７及び摺動部材
１０の作動開始を表示するパイロットである。Dust 5 To explain the electric circuit with reference to Fig. 4, BT is the battery, etc., SW1 is the power switch, SW2 is the support leg extension and grounding switch, SW3 is the switch for raising and lowering the lift arm, and SW4 is the extension and contraction of the sliding member. switch, SW5 is an electrical contact that operates depending on the length of the trailer, LS3. LS4 is an electrical contact that operates when the support legs 2, 2 are grounded, LS5. LS6
is an electrical contact that plows at the upper limit position when the support leg 2.2 is engaged and separated. r, s7 are electrical contacts that work at the lifting limit position of the beam 7, LS8 are electrical contacts that work at the lowering limit position of the lift arm 7, z, s9 are electrical contacts that work at the intermediate position of the lift arm 7, and Lslo is the sliding contact. The electrical contact LSl 1 which operates at the extension limit position of the moving member 10 is an electrical contact which operates at the contraction limit position of the sliding member 10 . OR1...QRll are electromagnetic relays (hereinafter referred to as relays), and each contact crl
...has arll. PLl indicates a power supply of 0Nft. ), pr, 2 beams 7 This is a pilot that indicates the start of operation of the arm 7 and the sliding member 10.
次に本発明による作用について説明すると、第４図に示
される電気回路図は、トラクタＡが走行状態にある時を
示すもので、長尺のトレーラ１６を傾倒するには、まず
スイッチＳＷ１を接にし、パイロッ）ＰＬｌの点灯を確
認し、その後選択スイッチｓｗ５を長尺のトレーラ用つ
まり上方位置に切り換え、さらにスイッチＳＷ２を上方
位置に切換える。 この状態で電流は、スイッチ５Ｗ２
−リレー接点ｃｒｌ−ソレノイド５ＯＬｉと流れるから
、電磁切換弁■２は左側位置に切り換わり、支持脚張出
用シリンダ３，６は伸長を開始する。Next, to explain the operation of the present invention, the electric circuit diagram shown in FIG. 4 shows when the tractor A is in a running state. After confirming that the pilot (pilot) PLl is lit, switch the selection switch SW5 to the upper position for long trailers, and then switch the switch SW2 to the upper position. In this state, the current is switch 5W2
-Relay contact crl-Solenoid 5OLi flows, so the electromagnetic switching valve 2 is switched to the left position, and the support leg extension cylinders 3 and 6 start to extend.
引き続き前記シリンダ６．６を伸長すると、前記シリン
ダろ、３は伸長終了位置で電気接点ＬＳＩ、ＬＳ２を接
にする。 この状態において、電流は電気接点ＬＳＩ−
ＬＳ２−リレーＯＲ１と流れるから、リレーＯＲＩの接
点ｃｒｌは接あるいは新作用をうける。 このためソレ
ノイド５ＱＬ１の通電は停止し、電磁切換弁ｖ２は中正
位置にＡ７
切り換わり、支持脚張出用シリンダ６．３の伸長は停止
する。 これにかわって電流は、スイッチ５ｗ２−リレ
ー接点ａ ｒ ｌ−ｏ ｒ ２−ソレノイド５ＯＬ２と
流れるから、電磁切換弁ｖ１は左側位置に切り換わり支
持脚接地用シリンダ５．５は伸長を開始する。When the cylinder 6.6 is subsequently extended, the cylinder roller 3 contacts the electric contacts LSI and LS2 at the end of extension position. In this state, the current flows through the electrical contact LSI-
Since it flows from LS2 to relay OR1, the contact crl of relay ORI is connected or receives a new action. Therefore, the energization of the solenoid 5QL1 is stopped, the electromagnetic switching valve v2 is switched to the neutral position A7, and the extension of the support leg extension cylinder 6.3 is stopped. Instead, the current flows through the switch 5w2 - the relay contact a r l - or r 2 - the solenoid 5OL2, so the electromagnetic switching valve v1 is switched to the left position and the support leg grounding cylinder 5.5 starts to extend.
支持脚接地用シリンダ５，５が接地した後、電気接点Ｌ
Ｓ３．ＬＢ４を接にする。 この状態において、電流は
電気接点ＬＳ３−、ＬＳ４−ＩＪレーＯＲ’ ２と流れ
るため、リレーＯＲ２の接点ｃｒ２は接あるいは新作用
をうける。 したがってソレノイド５ＱＬ２の通電、は
停止し、電磁切換弁ｖ１は中立位置に切り換わり、支持
脚接地用シリンダ５．５の伸長は停止する。 これに反
し、電流はリレー接点ｃｒ２−リレーＯＲ４と流れ、リ
レーＯＲ４の接点ｃｒ４を接にする、また電流はリレー
接点ｃｒ２−バイロッ）Ｐｈ２と流れ、バイロッ）Ｐｈ
２は点灯し、支持脚２，２の張出、接地完了を知らせる
。After the supporting leg grounding cylinders 5, 5 are grounded, the electrical contact L
S3. Connect LB4. In this state, current flows through the electrical contacts LS3-, LS4-IJ relay OR'2, so that the contact cr2 of the relay OR2 is connected or receives a new function. Therefore, the energization of the solenoid 5QL2 is stopped, the electromagnetic switching valve v1 is switched to the neutral position, and the extension of the support leg grounding cylinder 5.5 is stopped. On the other hand, the current flows through relay contact cr2-relay OR4 and contacts the contact cr4 of relay OR4, and the current flows through relay contact cr2-byrot)Ph2 and byrot)Ph2.
2 lights up to notify that the support legs 2, 2 have been extended and have touched down.
次にスイッチｓｗ３を上方位置に切り換えると電流はス
イッチ５Ｗ５−リレー接点ｏｒ４−スイッチ５ｗ３−リ
レー接点ｃｒ５−ソレノイド５ＯＬ５と流れ、電磁切換
弁ｖ４は左側位置に切り換わり、リフト腕起伏用シリン
ダ９は伸長を開始する０
前記シリンダ９の伸長終了位置では、電気接点ＬＳ７を
接にするため、電流は電気接点ｒ、５７−Ｌ−リレーＣ
Ｒ５と流れ、リレーＯＲ５の接点ｃｒ５は接あるいは新
作用をうける。 すなわち、ソレノイド５ＯＬ５の通電
は停止し、電磁切換弁■４は中立位置にもどり、リフト
腕起伏用シリンダ９の伸長は停止する。Next, when the switch sw3 is switched to the upper position, the current flows through the switch 5W5 - relay contact or4 - switch 5w3 - relay contact cr5 - solenoid 5OL5, the electromagnetic switching valve v4 is switched to the left position, and the lift arm raising/lowering cylinder 9 is extended. 0 At the extension end position of the cylinder 9, the electric contact LS7 is brought into contact, so the current flows through the electric contact r, 57-L-relay C
R5 and contact cr5 of relay OR5 is connected or receives a new action. That is, the energization of the solenoid 5OL5 is stopped, the electromagnetic switching valve 4 returns to the neutral position, and the extension of the lift arm raising/lowering cylinder 9 is stopped.
さらに、スイッチＳＷ４を上方位置に切り換えると、電
流はリレー接点ｃｒ５−スイッチ５Ｗ４−リレー接点ｃ
ｒ ５− ｃ ｒ ９−ソレノイド５ＱＬ７と流れ、
電磁切換弁■６は左側位置に切り換わり、摺動部材伸縮
用シリンダ１２は伸長を開始する。 引き続き前記シリ
ンダ１２が伸長し、伸長終了位置に達すると、電気接点
ＬＳ１０を接にする０
屋９
したがって、電流は電気接点ＬＳ１０−ＩＪレーＯＲ９
と流れ、リレーＯＲ９の接点ｃｒ９は新作用をうけるた
め、ソレノイド５ＯＬ７の通電は停止し、電磁切換弁ｖ
６は中立位置に切り換わり、前記シリンダ１２の伸長は
停止する。 以、Ｌのようにして長尺のトレーラ１６の
傾倒作動は完了するＯ
次に長尺のトレーラ１６を伏倒するには、まずスイッチ
ＳＷ４を下方位置に切り換える。 この状態において、
電流はリレー接点ａｒ４−スイッチ５ｗ４−リレー接点
ｃｒｌｏ−ソレノイド５ＯＬ８と流れ、電磁切換弁ｖ６
は右側位置に切り換わり、摺動部材１０伸縮用シリンダ
１２は収縮を開始する。 引き・続き前記シリンダ１２
は収縮し、収縮終了位置では電気接点Ｌ８１１を接にし
、電流は電気接点ＬＳ１１−リレー０Ｒ１０と流れ、リ
レーＯＲ１０の接点０ｒ１０は接あるいは新作用をうけ
る。 したがって、ソレノイド５ＯＬ８の通電は停【ヒ
し、シリンダ１２の収縮は停止する。Furthermore, when switch SW4 is switched to the upper position, the current flows from relay contact cr5 to switch 5W4 to relay contact c.
r 5- cr 9- Solenoid 5QL7 and flow;
The electromagnetic switching valve (6) switches to the left position, and the sliding member expansion/contraction cylinder 12 starts to extend. The cylinder 12 continues to extend and when it reaches the end of extension position, the electrical contact LS10 is brought into contact with the current.
As a result, the contact cr9 of the relay OR9 receives a new action, so the energization of the solenoid 5OL7 is stopped, and the solenoid switching valve v
6 is switched to the neutral position, and the extension of the cylinder 12 is stopped. Thereafter, the tilting operation of the long trailer 16 is completed as shown in L.Next, in order to tilt the long trailer 16 upside down, first switch SW4 is switched to the lower position. In this state,
Current flows through relay contact ar4 - switch 5w4 - relay contact crlo - solenoid 5OL8, and electromagnetic switching valve v6
is switched to the right side position, and the sliding member 10 and the telescoping cylinder 12 begin to contract. Continued/Continued The cylinder 12
contracts, and at the contraction end position, electrical contact L811 is brought into contact, current flows from electrical contact LS11 to relay 0R10, and contact 0r10 of relay OR10 is brought into contact or receives a new action. Therefore, the energization of the solenoid 5OL8 is stopped, and the contraction of the cylinder 12 is stopped.
次に、スイッチｓｗ３を下方位置に切り換える屋１０
と、電流はスイッチ５ｗ５−リレー接点Ｃｒ４−スイッ
チ５ｗ３−リレー接点ｃ ｒ １０−ｃ ｒ ’７−ソ
レノイド５ＯＬ６と流れ、電磁切換弁■４は右側位置に
切り換わり、リフト腕起伏用シリンダ９は収縮を開始す
る。Next, when the switch sw3 is switched to the lower position, the current flows through the switch 5w5 - relay contact Cr4 - switch 5w3 - relay contact cr'7 - solenoid 5OL6, and the electromagnetic switching valve 4 is in the right position. Then, the lift arm raising/lowering cylinder 9 starts to contract.
引き続き、前記シリンダ９を収縮し、収縮終了位置では
電気接点ｒ、ｓ８を接にすると、電流は電気接点Ｌ８８
−リレーＯＲ７及びパイロットｐＬ３と流れ、リレーＯ
Ｒ７の接点は接あるいは新作用をうけ、ソレノイド５Ｏ
Ｌ６の通電は停止され、前記シリンダ９の収縮は停止す
る。 またパイロッ）Ｐｈ３の点灯によって、支持脚２
は格納可能と知らせる。Subsequently, when the cylinder 9 is contracted and the electric contacts r and s8 are brought into contact at the contraction end position, the current flows through the electric contact L88.
- flows with relay OR7 and pilot pL3, relay O
The contact point of R7 is connected or has a new function, and the solenoid 5O
The current supply to L6 is stopped, and the contraction of the cylinder 9 is stopped. Also, when the pilot) Ph3 lights up, the support leg 2
indicates that it can be stored.
さらに、スイッチｓｗ２を下方位置に切り換えると、電
流はスイッチ５Ｗ２−リレー接点ｃｒ３−ｃ ｒ ７−
Ｓ ＯＬ ３と流れ、電磁切換弁ｖ１は右側位置に切
り換わる。 したがって、支持脚接地用シリンダ５．５
は収縮を開始し、収縮終了位置では電気接点Ｌ８５．Ｌ
Ｓ６を接にする。 この状態では電流は電気接点Ｌ Ｓ
５− Ｌ Ｓ ６−ＩＪレー扁 １１
０Ｒ３と流れソレノイド５ＯＬ３の通電は停止する一方
、電流はスイッチ５Ｗ２−リレー接点ｃｒ３−ソレノイ
ドＳ ＯＬ ４と流れ、電磁切換弁ｖ１は中立位置にも
どり、支持脚接地用シリンダ５゜５の収縮は完ｒする一
方、電磁切換弁ｖ２は右側位置に切り換わり、支持脚傷
用用シリンダ６．３は収縮を開始し、支持脚２．２を格
納位置にもどすものである。Further, when switch sw2 is switched to the lower position, the current flows from switch 5W2 to relay contact cr3 to cr7.
S OL 3 and the electromagnetic switching valve v1 is switched to the right position. Therefore, the supporting leg grounding cylinder 5.5
begins to contract, and at the end of contraction electrical contact L85. L
Connect S6. In this state, the current flows through the electrical contact L S
5-LS 6-IJ Leh 11 0R3 and flow Solenoid 5OL3 is de-energized, while current flows through switch 5W2 - relay contact CR3 - solenoid SOL 4, so that the electromagnetic switching valve v1 returns to the neutral position and the support leg While the contraction of the grounding cylinder 5.5 is completed, the electromagnetic switching valve v2 is switched to the right position, the support leg wound cylinder 6.3 starts to contract, and the support leg 2.2 is returned to the storage position. It is something.
一方、長尺でないトレーラ１４を傾倒するには、まずス
イッチｓＷ１を接にし、パイロットランプＰＬｌの点灯
を確認し、その後スイッチｓｗ５を長尺でないトレーラ
用つ・Ｐり下方位置に切り換え、さらにｓｗ３を上方位
１だに１）ノリ換える。 この状態では電流はスイッチ
５Ｗ５−スイツチ５Ｗ３−リレー接点ｃｒｌｌ−ソレノ
イド５ＯＬ５と流れ、電磁切換弁ｖ４は左側位置に切り
換わり、リフト腕起伏用シリンダ９は伸長を開始する。On the other hand, in order to tilt the trailer 14 that is not long, first turn on switch sW1, check that the pilot lamp PLl is lit, then switch switch sw5 to the lower position for trailers that are not long, and then turn sw3. Upper direction 1) Change the nori. In this state, current flows through the switch 5W5, the switch 5W3, the relay contact crll, and the solenoid 5OL5, the electromagnetic switching valve v4 is switched to the left position, and the lift arm raising/lowering cylinder 9 starts to extend.
つまり、支持脚２を格納した状態でもスイッチｓｗ５
を長尺でないトレーラ用に切り換えた場合には、リフト
腕７のみ起伏できるものである。In other words, even when the support leg 2 is retracted, the switch sw5
When the lift arm 7 is changed to one for a trailer that is not long, only the lift arm 7 can be raised and lowered.
次に前記シリンダ９の伸長により中間に設けた′電気接
点ＬＳ９を接にするため、電流は電気接点ｒ、 ｓ ９
−リレー０Ｒ１１と流れ、リレー０Ｒ１１の接点ｃｒｌ
ｌは断作用をうける。 すなわち、ソレノイドｓ ｏｒ
、５の通電は停止し、電磁切換弁■４は中立位置にもど
り、リフト腕起伏用シリンダ９の伸長は中間位置で停止
する。 以上のようにして長尺でないトレーラ１４の傾
倒作動は完Ｔする。Next, by expanding the cylinder 9, the electric contact LS9 provided in the middle is brought into contact, so that the current flows through the electric contacts r and s9.
- Flow with relay 0R11, contact crl of relay 0R11
l undergoes a rupture effect. That is, solenoid s or
, 5 is stopped, the electromagnetic switching valve 4 returns to the neutral position, and the extension of the lift arm raising/lowering cylinder 9 is stopped at the intermediate position. As described above, the tilting operation of the trailer 14, which is not long, is completed.
さらに長尺でないトレーラ１４を伏倒するには、まずス
イッチｓｗ３を下方位置に切り換える。この状態におい
て、電流はスイッチ５Ｗ５−スイッチ５ｗ３−リレー接
点ｃｒ７−ソレノイド５ＱＬ６と流れ、電磁切換弁ｖ４
は右側位置に切り換わり、す７ト起伏用シリンダ９は収
縮を開始する。Furthermore, in order to lay down the trailer 14 which is not long, the switch sw3 is first switched to the lower position. In this state, current flows through switch 5W5 - switch 5w3 - relay contact cr7 - solenoid 5QL6, and electromagnetic switching valve v4
switches to the right-hand position, and the 7-to-lowering cylinder 9 begins to contract.
引き続き、前記シリンダ９を収縮し、収縮終了位置では
電気接点８を接にすると、電流は電気接点ＬＳ８−リレ
ーＯＲ７及びパイロットＰＬ３と流れ、リレーＯＲ７の
接点ｃｒ７は接あるいは断作用をうけ、ソレノイド５Ｏ
ＬＩＩＳの通電は停止さ應１６
れ、前記シリンダ９の収縮は停止する。Subsequently, when the cylinder 9 is contracted and the electric contact 8 is brought into contact at the contraction end position, a current flows through the electric contact LS8, the relay OR7, and the pilot PL3, and the contact cr7 of the relay OR7 is connected or disconnected, and the solenoid 5O
The LIIS is de-energized and the cylinder 9 stops contracting.
以上のように本発明によれば、長尺のトレーラを傾倒す
る場合には支持脚が接地した後でないとリフト腕が起伏
できず、またリフト腕が起立終了した後でないと、摺動
部材が伸縮できないようにしてトラクタが横転しないよ
うにしている。As described above, according to the present invention, when tilting a long trailer, the lift arm cannot be raised or lowered until after the support leg has touched the ground, and the sliding member cannot be raised or lowered until after the lift arm has finished standing. It prevents the tractor from rolling over by preventing it from expanding or contracting.
また長尺でないトレーラを傾倒する場合には、支持脚が
格納された状態でも、リフト腕のみ起伏できるようにし
ており、トレーラを傾倒するのに要する時間が短縮され
るとともに、支持脚が張り出せない路地等でもトレーラ
を傾動できるものである。In addition, when tilting a trailer that is not long, only the lift arms can be raised and lowered even when the support legs are retracted, reducing the time required to tilt the trailer and preventing the support legs from sticking out. This allows the trailer to be tilted even in alleys where there is no traffic.
第１図、第２図はトラクタ、トレーラの側面図、第６図
は本発明による油圧回路図、第４図は同電気回路図であ
る。
Ａ・・・・トラクタ、１６・・・・長尺のトレーラ、１
４・・・・長尺でないトレーラ〇
特開昭５８−１９１６４１ （５）1 and 2 are side views of the tractor and trailer, FIG. 6 is a hydraulic circuit diagram according to the present invention, and FIG. 4 is an electric circuit diagram thereof. A...Tractor, 16...Long trailer, 1
4... Trailer that is not long 〇 Japanese Patent Application Laid-Open No. 58-191641 (5)
Claims (1)
体枠上に支柱を立設し、該支柱の先端にリフト腕を軸支
し、さらにリフト腕に連結器が軸支された摺動部材を嵌
挿し、前記支柱あるいは車体枠とリフト腕及びリフト腕
と摺動部材間に配設された１工上装置により連結器に固
縛されたトレーラを傾倒可能にしたトラクタにおいて、
長尺のトレーラを傾倒する場合には前記支持脚の接地後
、す７ト腕を起伏自在とし、またリフト腕の起立後、摺
動部材を伸縮自在とし、長尺でないトレーラを傾倒する
場合には、前記支持脚を格納した状態でもリフト腕のみ
起伏自在としたトラクタの順次作動制御装置。A sliding member in which a supporting leg is installed on a body frame of a tractor, a column is erected on the body frame, a lift arm is pivotally supported at the tip of the column, and a coupler is pivotally supported on the lift arm. In the tractor, the trailer secured to the coupler can be tilted by a construction device installed between the support or body frame and the lift arm, and between the lift arm and the sliding member.
When tilting a long trailer, after the support legs touch the ground, the bottom arm can be raised and lowered, and after the lift arm is raised, the sliding member can be extended and contracted, and when tilting a non-long trailer, This is a sequential operation control device for a tractor in which only the lift arm can be raised and lowered even when the supporting legs are retracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7434782A JPS58191641A (en) | 1982-04-30 | 1982-04-30 | Sequential operation controller for tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7434782A JPS58191641A (en) | 1982-04-30 | 1982-04-30 | Sequential operation controller for tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58191641A true JPS58191641A (en) | 1983-11-08 |
| JPH0138694B2 JPH0138694B2 (en) | 1989-08-16 |
Family
ID=13544486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7434782A Granted JPS58191641A (en) | 1982-04-30 | 1982-04-30 | Sequential operation controller for tractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58191641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001094152A1 (en) * | 2000-06-07 | 2001-12-13 | Interpatent Anstalt | Tipper device for a utility vehicle |
| CN112977654A (en) * | 2021-04-12 | 2021-06-18 | 蒙城县东正汽车有限公司 | Low flat-bed semi-trailer with rail conveying device |
-
1982
- 1982-04-30 JP JP7434782A patent/JPS58191641A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001094152A1 (en) * | 2000-06-07 | 2001-12-13 | Interpatent Anstalt | Tipper device for a utility vehicle |
| CN112977654A (en) * | 2021-04-12 | 2021-06-18 | 蒙城县东正汽车有限公司 | Low flat-bed semi-trailer with rail conveying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0138694B2 (en) | 1989-08-16 |
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