JPS6358754B2 - - Google Patents
Info
- Publication number
- JPS6358754B2 JPS6358754B2 JP1024482A JP1024482A JPS6358754B2 JP S6358754 B2 JPS6358754 B2 JP S6358754B2 JP 1024482 A JP1024482 A JP 1024482A JP 1024482 A JP1024482 A JP 1024482A JP S6358754 B2 JPS6358754 B2 JP S6358754B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- vehicle body
- actuator
- tractor
- dump vehicle
- 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
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000007935 neutral effect Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
- B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Agricultural Machines (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Description
【発明の詳細な説明】
本発明はダンプフルトレーラ用安全装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety device for a full dump trailer.
リヤダンプ車体を架装するフルトレーラけん引
トラクタとダンプ車体を架装するフルトレーラを
連結した状態でけん引トラクタ側のリヤダンプ車
体をダンプ上昇したとき、ダンプ荷台の後方下縁
部がドローバに当接して重大な事故をまねく恐れ
がある。このような事故を未然に防ぐ事を目的と
して本発明はなされたものである。 When the rear dump vehicle body on the towing tractor side was raised in a dump state with the full trailer towing tractor carrying the rear dump vehicle body and the full trailer mounting the dump vehicle body connected, the rear lower edge of the dump bed came into contact with the drawbar, causing serious damage. There is a risk of causing a serious accident. The present invention has been made with the aim of preventing such accidents.
本発明の構成はリヤダンプ車体１４を架装した
けん引トラクタ１と、ダンプ車体１５を架装した
フルトレーラ２とを連結部材であるドローバで連
結し、前記けん引トラクタ１にはエアタンク３と
該エアタンク３に連結したエア配管４を設け、該
エア配管４に締切コツク５と開閉可能なカツプリ
ング６，７をそれぞれ設け、更にフルトレーラ２
に配管したブレーキラインを前記カツプリング
６，７を介し連続してエマゼンシーラインを形成
し、前記締切コツク５とカツプリング６との間に
あるエア配管４にはエア分岐配管８を接続し、該
エア分岐配管８にはエア分岐配管８内に供給され
た圧縮空気によつて突出する鍵棒１０を有するア
クチエータ９を連結し、該アクチエータの鍵棒１
０に対応してリヤダンプ車体１４を操作するトラ
クタ側のバルブ１１を配置し、前記エア分岐配管
８内に供給された圧縮空気の作用によつてアクチ
エータ９の鍵棒１０が突出したときに、前記バル
ブ１１がリヤダンプ車体１４を上昇させる位置に
移動しないようにしたことを特徴とするダンプフ
ルトレーラ用安全装置である。 The structure of the present invention is such that a towing tractor 1 mounted with a rear dump vehicle body 14 and a full trailer 2 mounted with a dump vehicle body 15 are connected by a drawbar which is a connecting member, and the towing tractor 1 has an air tank 3 and a full trailer 2 mounted with a dump vehicle body 15. An air piping 4 connected to the trailer 2 is provided, and the air piping 4 is provided with a shutoff cock 5 and coupling rings 6 and 7 that can be opened and closed, respectively.
An emergency line is formed by connecting the brake line piped to the brake line through the coupling rings 6 and 7, and an air branch pipe 8 is connected to the air pipe 4 located between the shutoff socket 5 and the coupling ring 6. An actuator 9 having a key bar 10 that protrudes by compressed air supplied into the air branch pipe 8 is connected to the air branch pipe 8.
The valve 11 on the tractor side that operates the rear dump vehicle body 14 is arranged in accordance with This safety device for a full dump trailer is characterized in that the valve 11 is prevented from moving to a position where the rear dump vehicle body 14 is raised.
前記構成を更に説明すると、フルトレーラのけ
ん引トラクタ１とフルトレーラ２とを連結し、そ
の連結がエマゼンシーラインの連通により完了す
る事象を利用して、このエマゼンシーラインのエ
ア配管４から分岐させたエア分岐配管８を設け、
けん引トラクタ１側に架装したリヤダンプ車体１
４と、フルトレーラ２側に架装したダンプ車体１
５を油圧操作するバルブ１１，１２のうち、けん
引トラクタ１側のリヤダンプ車体１４の上昇―中
立―下降を操作するバルブ１１が中立から上昇に
シフトすることを阻止する鍵棒１０を突出又は引
き込むようにしたアクチエータ９を設け、このア
クチエータ９をエア配管４から分岐したエア分岐
配管８に接続してダンプ車体１４が上昇しないよ
うにしてある。 To further explain the configuration, the towing tractor 1 of the full trailer and the full trailer 2 are connected, and by utilizing the phenomenon that the connection is completed by communication of the emergency line, the air piping 4 of the emergency line is connected. A branched air branch pipe 8 is provided,
Rear dump vehicle body 1 mounted on the towing tractor 1 side
4 and the dump vehicle body 1 mounted on the full trailer 2 side
Among the valves 11 and 12 that hydraulically operate the rear dump vehicle body 14 of the towing tractor 1 side, the key rod 10 that prevents the valve 11 that operates the rear dump vehicle body 14 on the towing tractor 1 side from shifting from neutral to ascending from shifting from neutral to ascending is protruded or retracted. An actuator 9 is provided, and this actuator 9 is connected to an air branch pipe 8 branched from the air pipe 4 to prevent the dump vehicle body 14 from rising.
又アクチエータ９を電気的に作動せしめたり、
あるいは検出装置の作動により電気的に作動せし
めるように構成することも出来るようにしたもの
である。 Also, the actuator 9 is electrically operated,
Alternatively, it can be configured to be electrically activated by the activation of the detection device.
以下に本発明の一実施例を第１図〜第５図に基
づいて説明する。 An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
１はリヤダンプ車体１４を架装したフルトレー
ラけん引用トラクタで、ダンプ車体１５を架装し
たフルトレーラ２を連結部材であるドローバで連
結してトラクタ１でけん引する。３はトラクタ１
に設けられたエアタンク車両後端のカツプリング
６の間をエア配管４で継ぎその中途に締切コツク
５を挿入して設ける。９は突出入する鍵棒１０を
有するアクチエータで締切コツク５とカツプリン
グ６との間のエア配管４より分岐したエア分岐配
管８に接続されている。７はトラクタ側のカツプ
リング６と接合するフルトレーラ２に継ながるジ
ヤンパーホース１６の先端に組付けられたカツプ
リングである。１１はトラクタ側のリヤダンプ車
体１４を操作するバルブ、１２はフルトレーラ側
のダンプ車体１５を操作するバルブでいずれもト
ラクタ側に設けられている。１３はバルブ１１の
スプール弁で運転席からのコントロールでリンケ
ージ１７により作動する。またスプール弁１３′
はバルブ１２のスプール弁である。リヤダンプ車
体１４の作動位置を示すと、第３図が中立、第４
図が上昇、第５図が下降位置を示すものである。 Reference numeral 1 denotes a full trailer towing tractor mounted with a rear dump vehicle body 14, and a full trailer 2 mounted with a dump vehicle body 15 is connected by a drawbar, which is a connecting member, and is towed by the tractor 1. 3 is tractor 1
A coupling 6 at the rear end of the air tank vehicle is connected with an air pipe 4, and a shutoff socket 5 is inserted in the middle of the air pipe 4. Reference numeral 9 denotes an actuator having a key rod 10 that protrudes in and out, and is connected to an air branch pipe 8 branched from the air pipe 4 between the shutoff pot 5 and the coupling ring 6. Reference numeral 7 denotes a coupling attached to the tip of the jumper hose 16 connected to the full trailer 2, which is coupled to the coupling 6 on the tractor side. Numeral 11 is a valve for operating the rear dump vehicle body 14 on the tractor side, and 12 is a valve for operating the dump vehicle body 15 on the full trailer side, both of which are provided on the tractor side. 13 is a spool valve of the valve 11, which is operated by a linkage 17 under control from the driver's seat. Also, the spool valve 13'
is the spool valve of valve 12. The operating positions of the rear dump vehicle body 14 are shown in Fig. 3, neutral, and 4th.
The figure shows the raised position, and FIG. 5 shows the lowered position.
アクチエータ９に設けた鍵棒１０はスプール弁
１３が中立、又は下降の位置では第２図に示した
ように突出してスプール弁１３が上昇位置へシフ
トすることを阻止するため、ダンプ車体１４は上
昇できない。 The key rod 10 provided on the actuator 9 protrudes as shown in FIG. 2 when the spool valve 13 is in the neutral or lowered position to prevent the spool valve 13 from shifting to the raised position, so the dump vehicle body 14 is raised. Can not.
本発明は上述のように構成してあるからトラク
タ１とフルトレーラ２が連結された状態において
はエマゼンシーラインからエア分岐配管８を通し
てアクチエータ９に内圧が及ぶので、鍵棒１０は
連結状態中、常に突出しており、バルブ１１のス
プール弁１３が中立から上昇位置へシフトするこ
とを阻止することを続けるのでトラクタ１側のリ
ヤダンプ車体１４をダンプ上昇することは不可能
な状態になつている。 Since the present invention is configured as described above, when the tractor 1 and the full trailer 2 are connected, internal pressure is applied from the emergency line to the actuator 9 through the air branch pipe 8, so that the key rod 10 is moved during the connected state. , always protrudes, and continues to prevent the spool valve 13 of the valve 11 from shifting from the neutral to the raised position, making it impossible to dump and raise the rear dump vehicle body 14 on the tractor 1 side.
又この鍵棒１０の突出又は引込みは、エマゼン
シーラインの内圧で作動する圧力スイツチで電気
を通電し、ソレノイド式の電気系アクチエータで
作動させることもできる。 The protrusion or retraction of the key stick 10 can also be activated by a solenoid-type electric actuator, which is energized by a pressure switch operated by the internal pressure of the emergency line.
本発明においてトラクタ１のリヤダンプ車体１
４をダンプ上昇させるときは、先ずトラクタ１と
フルトレーラ２の連結を解き、エマゼンシーライ
ンのカツプリング６，７を外してから締切コツク
５を聞じてアクチエータ９に作動する内圧をカツ
プリング６から外気に開放する。このとき鍵棒１
０はアクチエータ９内に設けたリターンスプリン
グ（図示せず）の作用力によりアクチエータ９内
に引込まれた状態となる。したがつてバルブ１１
のスプール弁１３は初めて中立から上昇位置にシ
フト可能になり、トラクタ１側のリヤダンプ車体
１４をダンプ上昇させて積荷を荷台より排出がで
きる。 In the present invention, a rear dump vehicle body 1 of a tractor 1
4, first uncouple the tractor 1 and full trailer 2, remove the emergency line couplings 6 and 7, and then listen to the shut-off switch 5 to release the internal pressure acting on the actuator 9 from the coupling 6. Open to the outside air. At this time, key stick 1
0 is in a state where it is pulled into the actuator 9 by the acting force of a return spring (not shown) provided in the actuator 9. Therefore, valve 11
The spool valve 13 can be shifted from the neutral position to the raised position for the first time, and the rear dump vehicle body 14 on the tractor 1 side can be dumped and raised to discharge the cargo from the loading platform.
前記のようにけん引トラクタ１と、フルトレー
ラ２の連結を切り離したときは、連結部材である
ドローバがけん引トラクタ１（以下単にトラクタ
１と略称する）より離脱しているのでトラクタ１
に搭載してあるリヤダンプ車体１４が上昇して傾
斜し荷台より積荷の排出作業を行なつても、リヤ
ダンプ車体１４の後方下縁部がドローバに衝突し
てドローバを損傷せしめることがなく、ドローバ
の修理を行なう事も生じない。 When the towing tractor 1 and the full trailer 2 are disconnected as described above, the drawbar, which is a connecting member, is separated from the towing tractor 1 (hereinafter simply referred to as tractor 1), so the tractor 1
Even if the rear dump vehicle body 14 mounted on the vehicle rises and tilts to discharge a load from the loading platform, the rear lower edge of the rear dump vehicle body 14 will not collide with the drawbar and damage the drawbar, and the drawbar will remain stable. No repairs will be required.
しかしながらトラクタ１と、トレーラ２とを連
結部材であるドローバで連結してあり、かつまた
カツプリング６，７を接続してある場合はトラク
タ１に搭載してあるリヤダンプ車体１４を上昇せ
しめダンプ作業を行なうと、リヤダンプ車体１４
の後方下縁がドローバに衝突してドローバを損傷
するおそれがあるので、そのような事故を未然に
防止する必要がある。 However, if the tractor 1 and the trailer 2 are connected by a drawbar, which is a connecting member, and the coupling rings 6 and 7 are also connected, the rear dump body 14 mounted on the tractor 1 is raised to perform dumping work. and rear dump vehicle body 14
Since there is a risk that the rear lower edge of the drawbar may collide with the drawbar and damage the drawbar, it is necessary to prevent such an accident from occurring.
そこで本発明は、トラクタ１と、フルトレーラ
２とを連結し、かつカツプリング６，７が接続し
ている場合、リヤダンプ車体１４が上昇しないよ
うにアクチエータ９の鍵棒１０をエア配管４及び
エア分岐配管８よりのエアで下方押し出し、トラ
クタ１側のバルブ１１のスプール弁１３に当接
し、スプール弁１３の左方向への作動を阻止して
いるので、リヤダンプ車体１４の上昇はできな
い。 Therefore, in the present invention, when the tractor 1 and the full trailer 2 are connected and the coupling rings 6 and 7 are connected, the key rod 10 of the actuator 9 is connected to the air pipe 4 and the air branch so that the rear dump vehicle body 14 does not rise. The rear dump vehicle body 14 cannot rise because it is pushed downward by air from the pipe 8 and comes into contact with the spool valve 13 of the valve 11 on the tractor 1 side, preventing the spool valve 13 from moving to the left.
従つて前に述べてあるように締切コツク５を閉
じてエア分岐配管８内のエアをカツプリング６か
ら外気に排出しない限り、アクチエータ９の鍵棒
１０は第２図及び第３図に示すように中立の位置
に保持されており、トラクタ１側のダンプ１１の
スプール弁１３は第４図に示すような上昇作動は
阻止されており、トラクタ１と、フルトレーラ２
を連結し、カツプリング６，７が接続されている
ときは、リヤダンプ車体１４の上昇はあり得ない
ので、リヤダンプ車体１４の上昇によるドローバ
損傷等の事故を確実に防止することができる。 Therefore, unless the shut-off valve 5 is closed and the air in the air branch pipe 8 is discharged from the coupling 6 to the outside air as described above, the key rod 10 of the actuator 9 will not move as shown in FIGS. 2 and 3. It is held in a neutral position, and the spool valve 13 of the dump truck 11 on the tractor 1 side is prevented from raising as shown in FIG.
When the coupling rings 6 and 7 are connected, the rear dump vehicle body 14 cannot rise, so accidents such as damage to the drawbar due to the rear dump vehicle body 14 rising can be reliably prevented.
以上述べたように本発明はリヤダンプ車体を架
装したトラクタがフルトレーラを連結した状態の
ままでリヤダンプの上昇を不可能にすることによ
り、リヤダンプ荷台の後方下縁とドローバが当接
してドローバを破壊する等の事故を未然に防ぐこ
とが可能となるとともに車両整備時等における万
一の危険状態を回避することができる等の効果が
ある。 As described above, the present invention makes it impossible for a tractor equipped with a rear dump vehicle body to raise a rear dump truck while a full trailer is connected, so that the rear lower edge of the rear dump bed comes into contact with the drawbar and the drawbar is raised. It is possible to prevent accidents such as destruction, and it is also possible to avoid dangerous situations during vehicle maintenance.
第１図はトラクタとフルトレーラの連結状態を
示す車両の側面図、第２図は本発明の一実施例を
示すもので、アクチエータの鍵棒の検出状態を示
す正面図、第３図は中立位置を示すスプール弁下
面図、第４図は上昇位置を示すスプール弁の下面
図、第５図はスプール弁の下降位置を示す下面図
である。
１…けん引トラクタ、２…フルトレーラ、３…
エアタンク、４…エア配管、５…締切コツク、
６，７…カツプリング、８…エア分岐配管、９…
アクチエータ、１０…鍵棒、１１，１２…バル
ブ、１３，１３′…スプール弁、１４…リヤダン
プ車体、１５…ダンプ車体、１６…ジヤンパーホ
ース、１７…リンケージ。
Fig. 1 is a side view of the vehicle showing the state in which the tractor and full trailer are connected, Fig. 2 is a front view showing an embodiment of the present invention and shows the detection state of the key rod of the actuator, and Fig. 3 is a neutral view of the vehicle. FIG. 4 is a bottom view of the spool valve showing the position; FIG. 4 is a bottom view of the spool valve showing the raised position; FIG. 5 is a bottom view showing the spool valve in the lowered position. 1... Towing tractor, 2... Full trailer, 3...
Air tank, 4... Air piping, 5... Closing tank,
6, 7...Cup ring, 8...Air branch piping, 9...
Actuator, 10... Key rod, 11, 12... Valve, 13, 13'... Spool valve, 14... Rear dump vehicle body, 15... Dump vehicle body, 16... Jumper hose, 17... Linkage.
Claims (1)
と、ダンプ車体を架装したフルトレーラとを連結
部材で連結し、前記けん引トラクタにはエアタン
クと、該エアタンクに連結したエア配管を設け、
該エア配管に締切コツクと開閉可能なカツプリン
グとをそれぞれ設け、更にフルトレーラに配置し
たブレーキラインを前記カツプリングを介し連続
してエマゼンシーラインを形成し、前記締切コツ
クとカツプリングとの間にあるエア配管にはエア
分岐配管を接続し、該エア分岐配管にはエア分岐
配管内に供給された圧縮空気によつて突出する鍵
棒を有するアクチエータを連結し、該アクチエー
タの鍵棒に対応してリヤダンプ車体を操作するト
ラクタ側のバルブを配置し、前記エア分岐配管内
に供給された圧縮空気の作用によつてアクチエー
タの鍵棒が突出したときに、前記バルブがリヤダ
ンプ車体を上昇させる位置に移動しないようにし
たことを特徴とするダンプフルトレーラ用安全装
置。 ２ トラクタ側のバルブに設けたスプール弁に係
合する鍵棒を有するアクチエータを電気的に作動
せしめるようにした特許請求の範囲第１項記載の
ダンプフルトレーラ用安全装置。[Scope of Claims] 1. A towing tractor mounted with a rear dump vehicle body and a full trailer mounted with a dump vehicle body are connected by a connecting member, and the towing tractor is provided with an air tank and an air pipe connected to the air tank. ,
The air piping is provided with a shutoff socket and a coupling ring that can be opened and closed, and furthermore, a brake line disposed on the full trailer is connected continuously through the coupling ring to form an emergency line, which is located between the shutoff socket and the coupling ring. An air branch pipe is connected to the air pipe, and an actuator having a key rod that protrudes by compressed air supplied into the air branch pipe is connected to the air branch pipe, and an actuator is connected to the air branch pipe in a manner corresponding to the key rod of the actuator. A valve on the tractor side that operates the rear dump vehicle body is arranged, and when the key rod of the actuator protrudes due to the action of compressed air supplied to the air branch pipe, the valve moves to a position where the rear dump vehicle body is raised. A safety device for a dump full trailer, which is characterized by preventing the accident from occurring. 2. The safety device for a full dump trailer according to claim 1, wherein an actuator having a key rod that engages with a spool valve provided on a valve on the tractor side is electrically actuated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1024482A JPS58128977A (en) | 1982-01-27 | 1982-01-27 | Safety device for dump full trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1024482A JPS58128977A (en) | 1982-01-27 | 1982-01-27 | Safety device for dump full trailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58128977A JPS58128977A (en) | 1983-08-01 |
| JPS6358754B2 true JPS6358754B2 (en) | 1988-11-16 |
Family
ID=11744887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1024482A Granted JPS58128977A (en) | 1982-01-27 | 1982-01-27 | Safety device for dump full trailer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58128977A (en) |
-
1982
- 1982-01-27 JP JP1024482A patent/JPS58128977A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58128977A (en) | 1983-08-01 |
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