JPS6242562Y2 - - Google Patents
Info
- Publication number
- JPS6242562Y2 JPS6242562Y2 JP15965281U JP15965281U JPS6242562Y2 JP S6242562 Y2 JPS6242562 Y2 JP S6242562Y2 JP 15965281 U JP15965281 U JP 15965281U JP 15965281 U JP15965281 U JP 15965281U JP S6242562 Y2 JPS6242562 Y2 JP S6242562Y2
- Authority
- JP
- Japan
- Prior art keywords
- drawbar
- leaf spring
- trailer
- bracket
- support point
- 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
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 1
Landscapes
- Agricultural Machines (AREA)
Description
【考案の詳細な説明】
本考案はトレーラの牽引ドローバの支持装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for a trailer traction drawbar.
従来、トラクタでトレーラを牽引する場合、ト
レーラ前部に取付けたドローバ装置をトラクタに
連結しトラクタによりトレーラを牽引していた
が、ドローバはトラクタとトレーラの上下変位を
逃げるために通常はトレーラフレームとピンにて
回動自在に取付けられており、トラクタとトレー
ラを切離した際ドローバの先端が地面へ落下する
のを防止するため第２図のようにドローバ支持装
置を設けることが多かつた。 Conventionally, when towing a trailer with a tractor, a drawbar device attached to the front of the trailer was connected to the tractor and the trailer was pulled by the tractor, but the drawbar was usually connected to the trailer frame to avoid the vertical displacement of the tractor and trailer. It is rotatably attached with a pin, and in order to prevent the tip of the drawbar from falling to the ground when the tractor and trailer are separated, a drawbar support device is often provided as shown in Figure 2.
しかし、第２図に示す従来装置はトレーラフレ
ーム８の下端に固設されたボルト１０に一端が可
撓自在に固定され他端がドローバ支持点１１に当
接し、ドローバ３を下方から支持しているのでド
ローバ３の上下の許容変位量は板バネ４の撓み量
の範囲内に限られ、ドローバ３の上下方向の回動
量、すなわちトラクタ１とトレーラ２との間にお
ける上下変位に対する許容範囲が著しく制限され
る欠点があつた。 However, in the conventional device shown in FIG. 2, one end is flexibly fixed to a bolt 10 fixed to the lower end of the trailer frame 8, and the other end is in contact with a drawbar support point 11, supporting the drawbar 3 from below. Therefore, the permissible vertical displacement of the drawbar 3 is limited to the amount of deflection of the leaf spring 4, and the permissible range for the vertical rotation of the drawbar 3, that is, the vertical displacement between the tractor 1 and the trailer 2, is extremely limited. There was a drawback that it was limited.
本考案は以上のような欠点を解消した考案であ
り、ドローバの上下方向の回動量を大きくするこ
とによりトラクタとトレーラの上下方向の許容変
位量を大きくすることを可能にし、トラクタによ
るトレーラの牽引を円滑にすることを目的とする
ものである。 This invention is a device that eliminates the above-mentioned drawbacks, and by increasing the amount of vertical rotation of the drawbar, it is possible to increase the amount of permissible vertical displacement of the tractor and trailer. The purpose is to facilitate this process.
本考案はドローバ３を支持する板バネ４の一端
をドローバ支持点１１に当接し、トレーラフレー
ム８のヒンジブラケツト１３に回動自在に軸支し
たブラケツト５に前記板バネ４の他端を可撓自在
に固定し、ヒンジブラケツト１３の後方に設けた
フレーム支持点１２に一端を当接した補助板バネ
７の他端をブラケツト５の後方に可撓自在に固定
せしめたことを特徴とするドローバ支持装置であ
る。 In the present invention, one end of a leaf spring 4 supporting a drawbar 3 is brought into contact with a drawbar support point 11, and the other end of the leaf spring 4 is flexibly attached to a bracket 5 rotatably supported on a hinge bracket 13 of a trailer frame 8. A drawbar support characterized in that the auxiliary leaf spring 7 is fixed freely, and the other end of the auxiliary leaf spring 7 is fixed flexibly to the rear of the bracket 5, one end of which is in contact with a frame support point 12 provided at the rear of the hinge bracket 13. It is a device.
本考案を図面の一実施例に基づいてさらに詳細
に説明すると、第３図に示すようにドローバ３の
下端にはドローバ支持点１１が固設されており、
当該ドローバ支持点１１には、下方から板バネ４
が当接しており板バネ４の他端はブラケツト５に
ボルト１０で可撓自在に固定されている。 To explain the present invention in more detail based on an embodiment of the drawings, as shown in FIG. 3, a drawbar support point 11 is fixed at the lower end of the drawbar 3.
A leaf spring 4 is attached to the drawbar support point 11 from below.
The other end of the leaf spring 4 is flexibly fixed to the bracket 5 with a bolt 10.
又、トレーラフレーム８の下端にはフレーム支
持点１２が固設されており、当該フレーム支持点
１２には下方から補助板バネ７の一端が当接され
他端はブラケツト５に前記板バネ４と同様にボル
ト１０で可撓自在に固定されている。 Further, a frame support point 12 is fixedly installed at the lower end of the trailer frame 8, and one end of the auxiliary leaf spring 7 is brought into contact with the frame support point 12 from below, and the other end is connected to the bracket 5 with the leaf spring 4. Similarly, it is flexibly fixed with bolts 10.
而して、ブラケツト５の前後に板バネ４と補助
板バネ７に連結されたブラケツト５はトレーラフ
レーム８の下端に固設されたヒンジブラケツト１
３にピン６で回動自在に軸支されている。 The bracket 5 connected to the leaf spring 4 and the auxiliary leaf spring 7 at the front and rear of the bracket 5 is connected to the hinge bracket 1 fixed to the lower end of the trailer frame 8.
3 and is rotatably supported by a pin 6.
なお、ドローバ３はトレーラフレーム８の先端
にピン９で回動自在に軸着されている。 The drawbar 3 is rotatably attached to the tip of the trailer frame 8 with a pin 9.
本考案は以上のように構成されているから、第
２図に示すように従来のブラケツトはトレーラフ
レームに回動不可能に固設されていたから、ドロ
ーバ支持点１１が板バネ４の先端を押圧した場
合、板バネ４の撓み量は板バネ４の許容変位量の
みに限られていたが、本考案装置によればブラケ
ツト５はピン６を中心に回動自在に動くので板バ
ネ４の許容変位量は増大し、ドローバ３のピン９
を中心とした上下方向の回動変位量を大幅に増大
せしめることが可能になる。 Since the present invention is constructed as described above, the drawbar support point 11 presses the tip of the leaf spring 4, whereas the conventional bracket was fixed to the trailer frame in a non-rotatable manner as shown in FIG. In this case, the amount of deflection of the leaf spring 4 was limited only to the allowable displacement of the leaf spring 4, but according to the device of the present invention, the bracket 5 moves freely around the pin 6, so that the allowable displacement of the leaf spring 4 is limited. The amount increases and pin 9 of drawbar 3
It becomes possible to significantly increase the amount of rotational displacement in the vertical direction around .
それと同時に補助板バネ７がフレーム支持点１
２に接触することによつて生じる抗力が板バネ４
のドローバ支持点１１に押圧されることによつて
生じる抗力に加わるので、ドローバ３を上方に持
ち上げる全体としての抗力は従来装置に比し大き
くなるので、下方に回動したドローバ３をより速
やかに上方の元の位置に戻すことが可能となる。 At the same time, the auxiliary leaf spring 7 is moved to the frame support point 1.
The drag force generated by contacting leaf spring 4
Since this is added to the drag force generated by being pressed against the drawbar support point 11 of It can be returned to its original position above.
したがつて本考案によれば、ドローバの上下方
向の許容変位量を従来のドローバの許容変位量よ
り大きくすることができるので、トラクタとトレ
ーラの上下変位をより大きくする事が可能となり
トラクタの上下振動に対応してトレーラも追従し
て変位することができ、トラクタによるトレーラ
の牽引を従来以上により円滑なものとすることが
できる等の効果を有する。 Therefore, according to the present invention, the permissible vertical displacement of the drawbar can be made larger than the permissible displacement of the conventional drawbar, making it possible to increase the vertical displacement of the tractor and trailer. The trailer can also be displaced in response to the vibrations, and the trailer can be pulled by the tractor more smoothly than before.
図面は本考案の実施の一例を示すもので、第１
図は従来のトラクタとトレーラの牽引状態を示し
た正面図、第２図は従来のドローバ支持装置の正
面図、第３図は本考案に係るドローバ装置を示し
た正面図、第４図は同上Ａ部の拡大正面図であ
る。
１はトラクタ、２はトレーラ、３はドローバ、
４は板バネ、５はブラケツト、６はピン、７は補
助板バネ、８はトレーラフレーム、９はピン、１
０はボルト、１１はドローバ支持点、１２はフレ
ーム支持点、１３はヒンジブラケツト。
The drawings show an example of the implementation of the present invention.
The figure is a front view showing a conventional tractor and trailer in a towing state, Fig. 2 is a front view of a conventional drawbar support device, Fig. 3 is a front view showing a drawbar device according to the present invention, and Fig. 4 is the same as above. It is an enlarged front view of part A. 1 is a tractor, 2 is a trailer, 3 is a drawbar,
4 is a leaf spring, 5 is a bracket, 6 is a pin, 7 is an auxiliary leaf spring, 8 is a trailer frame, 9 is a pin, 1
0 is a bolt, 11 is a drawbar support point, 12 is a frame support point, and 13 is a hinge bracket.
Claims (1)
端にドローバの後端を回動可能に軸着し、トレー
ラフレームの下面に設けたヒンジブラケツトに、
板バネの後端を固定したブラケツトを回動可能に
軸着し、ドローバの先端下面に設けたドローバ支
持点に前記板バネの先端を接触状態で当接し、ブ
ラケツトに、後方に伸びた補助板バネの前方を固
定し、補助板バネの後端をトレーラフレームの下
面に設けたフレーム支持点に接触状態で当接せし
めたことを特徴とする、ドローバ支持装置。 The rear end of the drawbar is pivotably attached to the tip of the trailer frame installed at the front of the trailer, and attached to the hinge bracket installed on the underside of the trailer frame.
A bracket to which the rear end of a leaf spring is fixed is rotatably pivoted, the tip of the leaf spring is brought into contact with a drawbar support point provided on the lower surface of the tip of the drawbar, and an auxiliary plate extending rearward is attached to the bracket. A drawbar support device characterized in that a front end of a spring is fixed, and a rear end of an auxiliary leaf spring is brought into contact with a frame support point provided on a lower surface of a trailer frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15965281U JPS5865104U (en) | 1981-10-28 | 1981-10-28 | Drawbar support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15965281U JPS5865104U (en) | 1981-10-28 | 1981-10-28 | Drawbar support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5865104U JPS5865104U (en) | 1983-05-02 |
| JPS6242562Y2 true JPS6242562Y2 (en) | 1987-10-31 |
Family
ID=29952102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15965281U Granted JPS5865104U (en) | 1981-10-28 | 1981-10-28 | Drawbar support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5865104U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069705U (en) * | 1983-10-20 | 1985-05-17 | 東急車輌製造株式会社 | Drawbar support device |
-
1981
- 1981-10-28 JP JP15965281U patent/JPS5865104U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5865104U (en) | 1983-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6242562Y2 (en) | ||
| US2342407A (en) | Universal tractor hitch | |
| US2563277A (en) | Tractor seat construction | |
| US2916107A (en) | Automatic trailer brake operator | |
| JPH018405Y2 (en) | ||
| SU1729895A1 (en) | Tractor half-trailer | |
| JPH0475755U (en) | ||
| JPH0335042Y2 (en) | ||
| JPS6216360Y2 (en) | ||
| JP2546406B2 (en) | Towing tractor traction device | |
| JPS6340082Y2 (en) | ||
| JPH033106Y2 (en) | ||
| GB1516579A (en) | Device for limiting the pitching of the cabin of a towing vehicle | |
| JPS5850823Y2 (en) | combine | |
| JPH056218Y2 (en) | ||
| JPH0121906Y2 (en) | ||
| JPS63122029U (en) | ||
| JPS609104Y2 (en) | Agricultural tractor side arm covering device | |
| JPH0230Y2 (en) | ||
| JPS5939852Y2 (en) | Agricultural tractor draft control device | |
| JPS62143577U (en) | ||
| JPS5820690Y2 (en) | Tractor front loader attachment/detachment structure | |
| JPS6130305U (en) | Rear hitch mounting mast for rotary tillage equipment | |
| JPH0139157Y2 (en) | ||
| JPS587036A (en) | Attaching device for front loader |