JPS6329654B2 - - Google Patents
Info
- Publication number
- JPS6329654B2 JPS6329654B2 JP21318281A JP21318281A JPS6329654B2 JP S6329654 B2 JPS6329654 B2 JP S6329654B2 JP 21318281 A JP21318281 A JP 21318281A JP 21318281 A JP21318281 A JP 21318281A JP S6329654 B2 JPS6329654 B2 JP S6329654B2
- Authority
- JP
- Japan
- Prior art keywords
- lift member
- frame
- locking pin
- trailer
- tractor
- 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
- 230000007423 decrease Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect 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)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
【発明の詳細な説明】
本発明はトラクタにおけるリフト部材の固縛装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lashing device for a lift member in a tractor.
一般に、トラクタのフレームに支持枠を立設
し、この支持枠に、トレーラとの連結器を装着し
たリフト部材を起伏自在に軸支したトレーラの傾
倒装置は公知である。 2. Description of the Related Art Generally, a trailer tilting device is known in which a support frame is provided upright on a frame of a tractor, and a lift member equipped with a coupler for connecting to a trailer is pivotally supported on the support frame so as to be able to rise and fall freely.
このようなトレーラの傾倒装置にあつては、走
行時トレーラが跳ね上がると連結器を介してリフ
ト部材も上昇し、その下降時にフレームと衝突し
て衝撃音を発生させると同時に、フレームに衝撃
荷重を作用させることとなり、好ましくない。 In the case of such a trailer tilting device, when the trailer lifts up while traveling, the lift member also rises via the coupler, and when it descends, it collides with the frame, generating an impact sound and at the same time applying an impact load to the frame. This is not preferable.
そこで、リフト部材をフレームに固縛する固縛
装置が提案されているが、トレーラの傾動時にリ
フト部材に作用するトレーラ荷重は、Ｌ字状リフ
ト部材の水平部をその垂直部に対して開くように
作用することから、下方に歪みを生じ、固縛装置
による固縛ができなくなるという問題があつた。
すなわち、リフト部材の水平部が下方に歪むと、
リフト部材の垂直部と水平部がなす角度が若干大
きくなるものの、リフト部材の下降位置は相対的
な移動のないフレームに規制される。 Therefore, a lashing device has been proposed that lashes the lift member to the frame, but the trailer load acting on the lift member when the trailer is tilted causes the horizontal part of the L-shaped lift member to open relative to its vertical part. As a result, there was a problem in that downward distortion occurred, making it impossible to secure with the securing device.
In other words, if the horizontal part of the lift member is distorted downward,
Although the angle formed by the vertical and horizontal parts of the lift member becomes slightly larger, the lowering position of the lift member is regulated by the frame without relative movement.
一方、リフト部材と支柱との軸支部からリフト
部材の水平部先端（固縛位置）までの距離は、下
方への歪みに略相当する分長くなることから、歪
みを生じたリフト部材はその歪み分伏倒時におけ
るフレームとの当接が早まり、リフト部材の垂直
部と水平部が拡開した状態でフレームに当接する
と、前述した支柱に対する軸支部からの長くなつ
た距離だけ水平部の固縛位置が相対的に後方に移
動し、フレーム側固縛装置が対応しなくなるとい
う問題があつた。 On the other hand, since the distance from the axial support of the lift member and the column to the tip of the horizontal part of the lift member (the lashing position) increases by an amount approximately equivalent to the downward strain, the strained lift member When the lift member comes into contact with the frame earlier when it is laid down, and the lift member contacts the frame with the vertical and horizontal parts expanded, the horizontal part is fixed by the longer distance from the shaft support to the column mentioned above. There was a problem in that the lashing position moved relatively backward and the frame-side lashing device could no longer respond.
本発明は上記の点に鑑みてなされたもので、リ
フト部材にトレーラ荷重による歪みが発生しても
それを調整移動させることにより吸収し、トラク
タとトレーラとを固縛できるトラクタにおけるリ
フト部材の固縛装置を提供するものである。 The present invention has been made in view of the above-mentioned points, and is capable of fixing a lift member in a tractor that can absorb distortion caused by trailer load by adjusting and moving the lift member and secure the tractor and trailer. The present invention provides a restraining device.
以下図面により本発明の一実施例を説明する
と、トラクタ１のフレーム２上には支持枠３が立
設され、この支持枠３の上端に、垂直部４ａと水
平部４ｂよりなるＬ字状のリフト部材４の上端が
回動自在に軸支５されるとともに、支持枠３の基
端とリフト部材４の中間部間には油圧シリンダ
（ラムシリンダ）６が連結されている。 An embodiment of the present invention will be described below with reference to the drawings. A support frame 3 is erected on a frame 2 of a tractor 1, and an L-shaped part consisting of a vertical part 4a and a horizontal part 4b is attached to the upper end of this support frame 3. The upper end of the lift member 4 is rotatably supported by a shaft 5, and a hydraulic cylinder (ram cylinder) 6 is connected between the base end of the support frame 3 and the intermediate portion of the lift member 4.
このリフト部材４の水平部４ｂ自由端には連結
器７が装着され、この連結器７には常用の手段に
よつてトレーラ８の前端に設けた連結ピン（図示
せず）が着脱自在に連結されるようになつてお
り、前記油圧シリンダ６を伸長作動してリフト部
材４を上昇させると、トレーラ８は車輪９の後車
輪軸を支点として後方に傾動することができるも
のである。 A connector 7 is attached to the free end of the horizontal portion 4b of the lift member 4, and a connector pin (not shown) provided at the front end of the trailer 8 is detachably connected to the connector 7 by a conventional means. When the hydraulic cylinder 6 is extended and the lift member 4 is raised, the trailer 8 can tilt rearward about the rear axle of the wheels 9 as a fulcrum.
一方、前記フレーム２にはトルク軸１０が回動
自在に軸支されており、このトルク軸１０にはフ
ツク１１およびアーム１２が間隔を存して同方向
に固着され、また、前記フツク１１の下部には第
２アーム１３が突設されている。 On the other hand, a torque shaft 10 is rotatably supported on the frame 2, and a hook 11 and an arm 12 are fixed to the torque shaft 10 in the same direction with a gap between them. A second arm 13 is provided protruding from the lower part.
さらに、前記フレーム２に設けられたブラケツ
ト１５にはリンク１６の基端が枢支連結され、こ
のリンク１６の中間部には前記ブラケツト１５に
固着されたシリンダ１７のピストンロツドの先端
が枢支連結されている。 Further, the base end of a link 16 is pivotally connected to a bracket 15 provided on the frame 2, and the tip of a piston rod of a cylinder 17 fixed to the bracket 15 is pivotally connected to an intermediate portion of this link 16. ing.
そして、前記リンク１６の先端と前記アーム１
２の先端との間には連結杆１４の両端が枢支され
ており、この結果、シリンダ１７を伸縮すると前
記リンク１６、連結杆１４、アーム１２を介して
フツク１１をトルク軸１０回りに揺動させること
ができる。 Then, the tip of the link 16 and the arm 1
Both ends of a connecting rod 14 are pivotally supported between the ends of the connecting rods 14 and 2, and as a result, when the cylinder 17 is extended or contracted, the hook 11 is swung around the torque shaft 10 via the link 16, the connecting rod 14, and the arm 12. can be moved.
次に、前記フツク１１の受部材２３について説
明すると、前記リフト部材４の自由端付近には前
方に向かつて突出したブラケツト１８が固着され
ており、このブラケツト１８の先端には凹部１８
ａが形成されるとともに、その中間部には前記凹
部１８ａからの距離が上方から下方にかけて順次
漸減するように複数の孔１８ｂ……が穿設されて
いる。 Next, the receiving member 23 of the hook 11 will be explained. A bracket 18 that protrudes forward is fixed near the free end of the lift member 4, and a recess 18 is formed at the tip of the bracket 18.
A is formed, and a plurality of holes 18b are bored in the intermediate portion thereof such that the distance from the recess 18a gradually decreases from the top to the bottom.
一方、前記ブラケツト１８の凹部１８ａに対し
摺動自在な係止ピン１９を固着した係止片２０に
は、前記孔１８ｂ……に対向する孔２０ａが穿設
されている。 On the other hand, a locking piece 20 having a slidable locking pin 19 secured to the recess 18a of the bracket 18 is provided with a hole 20a that faces the holes 18b.
したがつて、係止片２０の孔２０ａをブラケツ
ト１８に穿設された複数の孔１８ｂ……より任意
の孔を選択して両者を合致させた後、ボルト、ナ
ツト２１を介して固縛することにより前記係止片
２０、すなわち、係止ピン１９をブラケツト１８
に対して前後方向に移動させることができる。 Therefore, the hole 20a of the locking piece 20 is selected from the plurality of holes 18b drilled in the bracket 18, and after matching the holes, the bolts and nuts 21 are secured together. This allows the locking piece 20, that is, the locking pin 19, to be attached to the bracket 18.
It can be moved forward and backward.
なお、２２は前記フレーム２と第２アーム１３
間に装着したリターンスプリングであつて、前記
フツク１１を係止ピン１９と係合する方向に付勢
するものである。 Note that 22 represents the frame 2 and the second arm 13.
This is a return spring installed between the two and biases the hook 11 in the direction of engagement with the locking pin 19.
次に本発明実施例の作動について説明すると、
いま第１図実線に示すようにトラクタ１およびト
レーラ８が走行位置にある状態において、シリン
ダ１７を作動してフツク１１を係止ピン１９より
外した後、油圧シリンダ６を伸長すると、Ｌ字状
のリフト部材４はその軸支５部を支点として反時
計回り方向に回動する結果、連結器７が上昇し、
これに連結されるトレーラ８は、後車輪９を支点
として後方に傾動され、トレーラ８の荷箱内に収
容される積載物を排出することができる。 Next, the operation of the embodiment of the present invention will be explained.
Now, with the tractor 1 and trailer 8 in the traveling position as shown by the solid line in FIG. The lift member 4 rotates counterclockwise around its shaft support 5 as a fulcrum, and as a result, the coupler 7 rises.
The trailer 8 connected thereto is tilted rearward using the rear wheels 9 as a fulcrum, and the cargo stored in the cargo box of the trailer 8 can be discharged.
排出が終了した後、前記油圧シリンダ６を収縮
してリフト部材４を下降すると、トレーラ８は元
の走行位置に復元される。 After the discharge is completed, the hydraulic cylinder 6 is contracted to lower the lift member 4, and the trailer 8 is restored to its original traveling position.
ここで、シリンダ１７の作動を解除すれば、リ
ターンスプリング２２の付勢力によりフツク１１
が係止ピン１９に係合し、リフト部材４はフレー
ム２に固定される。 If the operation of the cylinder 17 is released, the biasing force of the return spring 22 will cause the hook 11 to
engages with the locking pin 19, and the lift member 4 is fixed to the frame 2.
ところで、上記作動中において、リフト部材４
は重いトレーラ８の前部を片持状に支持すること
になるので、その水平部４ｂが垂直部４ａに対し
て開くように下方に歪みを生じる。 By the way, during the above operation, the lift member 4
Since the front portion of the heavy trailer 8 is supported in a cantilevered manner, the horizontal portion 4b is distorted downward so as to open relative to the vertical portion 4a.
したがつて、リフト部材４を伏倒した際、リフ
ト部材４はその垂直部と水平部のなす角度を若干
拡開した状態でフレーム２に当接することにな
る。一方、枢支部５より係止ピン１９の取付位置
までの距離は、前述の歪みに略相当する距離だけ
増加しており、リフト部材４がフレーム２に当接
した際には、該フレーム２に規制されて略歪みに
相当する距離分相対的に後方へ移動し、係止ピン
１９とフツク１１が係合できなくなる。 Therefore, when the lift member 4 is laid down, the lift member 4 comes into contact with the frame 2 with the angle formed by the vertical portion and the horizontal portion slightly expanded. On the other hand, the distance from the pivot portion 5 to the mounting position of the locking pin 19 increases by a distance approximately equivalent to the above-mentioned distortion, and when the lift member 4 comes into contact with the frame 2, The locking pin 19 and the hook 11 cannot be engaged with each other because the locking pin 19 and the hook 11 are restricted and move relatively backward by a distance corresponding to the distortion.
この場合において、係止片２０の孔２０ａを適
宜ブラケツト１８の下方側の孔１８ｂと合致させ
た後、ボルト、ナツト２１によつて係止片２０を
ブラケツト１８に固定すれば、係止ピン１９は前
方位置に移動し、その結果、係止ピン１９とフツ
ク１１とを係合することができる。 In this case, if the hole 20a of the locking piece 20 is properly aligned with the hole 18b on the lower side of the bracket 18, and then the locking piece 20 is fixed to the bracket 18 with the bolt and nut 21, the locking pin 19 is moved to the forward position, so that the locking pin 19 and the hook 11 can be engaged.
なお、本発明の実施例では係止ピンを係止片を
介し固定するようにしているが、本発明は上記実
施例に限定するものでなく、例えば、係止ピンを
固定するため直接ボルト、ナツトを利用して係止
ピンを固定するようにしてもよい。 In addition, in the embodiment of the present invention, the locking pin is fixed via a locking piece, but the present invention is not limited to the above-mentioned embodiment. For example, in order to fix the locking pin, a bolt, The locking pin may be fixed using a nut.
以上のように本発明によれば、リフト部材に歪
みが生じたとしても、係止ピンを容易に前後方向
に位置調整できることから、フツク片と係止ピン
が係合できないといつた不具合を容易に解消でき
るものである。 As described above, according to the present invention, even if the lift member is distorted, the position of the locking pin can be easily adjusted in the front-back direction, so that problems such as the hook piece and the locking pin not being able to engage can be easily solved. This can be resolved by
図面は本発明の一実施例を例示するものであつ
て、第１図はトラクタ、トレーラの側面図、第２
図はその要部側面図、第３図はその要部詳細図で
ある。
４……リフト部材、１１……フツク、１７……
シリンダ、１９……係止ピン。
The drawings illustrate one embodiment of the present invention, and FIG. 1 is a side view of a tractor and a trailer, and FIG.
The figure is a side view of the main part, and FIG. 3 is a detailed view of the main part. 4... Lift member, 11... Hook, 17...
Cylinder, 19...locking pin.
Claims (1)
先端にリフト部材の基端を起伏自在に軸支し、該
リフト部材にトレーラとの連結器を装着したトラ
クタにおいて、前記フレームにフツクを揺動自在
に軸支する一方、前記リフト部材には前後に移動
可能な係止ピンを設けた受部材を固着し、前記リ
フト部材の伏倒時、前記係止ピンに対しフツクを
係合し得るように構成したことを特徴とする、ト
ラクタにおけるリフト部材の固縛装置。1. In a tractor in which a support frame is erected on the frame of a tractor, the base end of a lift member is pivotally supported at the tip thereof so as to be able to rise and fall freely, and a coupler with a trailer is attached to the lift member, a hook is swung on the frame. While freely supporting the shaft, a receiving member provided with a locking pin movable back and forth is fixed to the lift member so that a hook can be engaged with the locking pin when the lift member is laid down. A lashing device for a lift member in a tractor, characterized in that it is configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21318281A JPS58116234A (en) | 1981-12-28 | 1981-12-28 | Tractor trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21318281A JPS58116234A (en) | 1981-12-28 | 1981-12-28 | Tractor trailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58116234A JPS58116234A (en) | 1983-07-11 |
| JPS6329654B2 true JPS6329654B2 (en) | 1988-06-14 |
Family
ID=16634896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21318281A Granted JPS58116234A (en) | 1981-12-28 | 1981-12-28 | Tractor trailer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58116234A (en) |
-
1981
- 1981-12-28 JP JP21318281A patent/JPS58116234A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58116234A (en) | 1983-07-11 |
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