JPH0224336Y2 - - Google Patents
Info
- Publication number
- JPH0224336Y2 JPH0224336Y2 JP1984081964U JP8196484U JPH0224336Y2 JP H0224336 Y2 JPH0224336 Y2 JP H0224336Y2 JP 1984081964 U JP1984081964 U JP 1984081964U JP 8196484 U JP8196484 U JP 8196484U JP H0224336 Y2 JPH0224336 Y2 JP H0224336Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic clutch
- lever
- shift lever
- gear shift
- clutch switching
- 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
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 1
Landscapes
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Mechanical Control Devices (AREA)
Description
【考案の詳細な説明】
本考案はトラクタにおけるライブPTO用油圧
クラツチの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 hydraulic clutch for live PTO in a tractor.
トラクタにおける従来のライブPTO用走行系
油圧クラツチのON・OFF切換操作は副変速に関
係なく行なうことができ、副変速がいかなる変速
位置においても油圧クラツチを接続できる構造で
あつたため、たとえば、副変速が高速位置にある
とき油圧クラツチ切換レバーを不用意にONにす
ると油圧クラツチの特性上機体が急発進して大変
危険であつた。 In conventional tractors, the ON/OFF switching operation of the drive system hydraulic clutch for live PTO can be performed regardless of the sub-shift, and the structure allows the hydraulic clutch to be connected at any shift position of the sub-shift. If the hydraulic clutch switching lever was inadvertently turned on when the hydraulic clutch was in the high-speed position, the aircraft would suddenly start, which was very dangerous due to the characteristics of the hydraulic clutch.
そこで本考案は、ライブPTO用の走行系油圧
クラツチ切換レバーを副変速レバーの近傍に設
け、副変速レバーが高速位置にあるときには上記
油圧クラツチ切換レバーのOFF側からON側への
操作が規制され、油圧クラツチ切換レバーがON
位置にあるときには副変速レバーを高速側へ操作
した際油圧クラツチ切換レバーが副変速レバーに
連動してON位置からOFF位置に自動的に切換わ
るべく油圧クラツチレバーを副変速レバーに連繋
せしめたことにより、高速での不用意なトラクタ
の飛出しをなくすることができるトラクタにおけ
るライブPTO用油圧クラツチの安全装置を提供
しようとするものである。 Therefore, the present invention provides a travel system hydraulic clutch switching lever for live PTO near the auxiliary gear shift lever, and when the auxiliary gear shift lever is in the high speed position, the operation of the hydraulic clutch switching lever from the OFF side to the ON side is restricted. , the hydraulic clutch switching lever is ON.
The hydraulic clutch lever is linked to the auxiliary gear shift lever so that when the auxiliary gear shift lever is operated to the high speed side, the hydraulic clutch switching lever is linked to the auxiliary gear shift lever and automatically switches from the ON position to the OFF position. The present invention aims to provide a safety device for a hydraulic clutch for a live PTO in a tractor, which can prevent the tractor from accidentally jumping out at high speed.
本考案の構成を図面に示された一実施例につい
て説明すれば、１は農用トラクタＡのミツシヨン
ケースで、該ミツシヨンケース１にはデフハウジ
ング２が連設されており、デフハウジング２の上
面を覆うデフハウジングカバー３上にはライブ
PTO用の走行系油圧クラツチ４のON・OFF切
換バルブ５が装備されている。 To explain the structure of the present invention with reference to an embodiment shown in the drawings, reference numeral 1 denotes a transmission case of an agricultural tractor A, and a differential housing 2 is connected to the transmission case 1. There is a live on the differential housing cover 3 that covers the top surface.
It is equipped with an ON/OFF switching valve 5 for a travel system hydraulic clutch 4 for PTO.
そして油圧クラツチ切換バルブ５の一側に突設
されたバルブ軸５′に副変速レバー６に近接対向
して油圧クラツチ切換レバー７が固定されてい
る。 A hydraulic clutch switching lever 7 is fixed to a valve shaft 5' protruding from one side of the hydraulic clutch switching valve 5 so as to be close to and opposite to the sub-shift lever 6.
８は主変速レバーである。 8 is a main gear shift lever.
９は副変速レバー６に固着されたストツパで、
該ストツパ９の先端部は油圧クラツチ切換レバー
７の前方に臨ませてある。 9 is a stopper fixed to the sub-shift lever 6;
The tip of the stopper 9 faces in front of the hydraulic clutch switching lever 7.
第３図は油圧クラツチ切換レバー７のON時及
びOFF時のレバー位置並びに副変速レバー６の
高速、中速、低速の各レバー位置を示す。 FIG. 3 shows the ON and OFF positions of the hydraulic clutch switching lever 7 and the high speed, medium speed, and low speed lever positions of the sub-shift lever 6.
図中１０は油圧クラツチ切換バルブ５と油圧ク
ラツチ４間に配管された油圧パイプである。 In the figure, 10 is a hydraulic pipe installed between the hydraulic clutch switching valve 5 and the hydraulic clutch 4.
叙上の如き構成において、いま副変速レバー６
が第３図実線図示の如く高速の位置にあるときは
油圧クラツチ切換レバー７をONに操作しようと
しても副変速レバー６と一体のストツパ９に妨げ
られるためONに入らない。そこで強引にONに
入れようとすれば副変速レバー６はストツパ９を
介し油圧クラツチ切換レバー７に押圧されて高速
位置から中速位置へ強制的に押戻されるため高速
での機体の飛出しは未然に防止される。 In the configuration as described above, the sub-shift lever 6 is now
When the clutch is in the high speed position as shown by the solid line in FIG. 3, even if an attempt is made to turn the hydraulic clutch switching lever 7 on, it will not turn on because it will be blocked by the stopper 9 that is integrated with the sub-shift lever 6. If you try to forcefully turn it on, the sub-shift lever 6 will be pressed by the hydraulic clutch switching lever 7 via the stopper 9 and will be forcibly pushed back from the high-speed position to the medium-speed position, which will prevent the aircraft from flying off at high speed. Prevented in advance.
また油圧クラツチ切換レバー７がONの位置に
あるときは、副変速レバー６を高速位置まで移動
させようとしても上記の場合と同様にストツパ９
に妨げられて高速に入らない。このとき副変速レ
バー６を強引に高速側に引上げれば油圧クラツチ
切換レバー７はストツパ９により押倒されてON
位置からOFF位置に強制的に移動せしめられる
ため上記同様実速での機体飛出しは確実に防止さ
れる。 Furthermore, when the hydraulic clutch switching lever 7 is in the ON position, even if you try to move the auxiliary gear shift lever 6 to the high speed position, the stopper 9
I can't get into high speed because it's blocked by. At this time, if the sub-shift lever 6 is forcibly pulled up to the high speed side, the hydraulic clutch switching lever 7 is pushed down by the stopper 9 and turned on.
Since it is forcibly moved from the position to the OFF position, the flying off of the aircraft at actual speed is reliably prevented as described above.
上記したように本考案は、ライブPTO用の走
行系油圧クラツチ切換レバーを副変速レバーの近
傍に設け、副変速レバーが高速位置にあるときに
は上記油圧クラツチ切換レバーのOFF側からON
側への操作が規制され、油圧クラツチ切換レバー
がON位置にあるときには副変速レバーを高速側
へ操作した際油圧クラツチ切換レバーが副変速レ
バーに連動してON位置からOFF位置に自動的に
切換わるべく油圧クラツチレバーを副変速レバー
に連繋せしめたから油圧クラツチの接続時におい
て、オペレータの不注意により不用意に油圧クラ
ツチが入つて機体が急に高速で飛出す危険を確実
に防止することができトラクタの安全性が一層高
められるものである。 As mentioned above, the present invention provides a drive system hydraulic clutch switching lever for live PTO near the auxiliary gear shift lever, and when the auxiliary gear shift lever is in the high speed position, it is turned on from the OFF side of the hydraulic clutch switching lever.
When the hydraulic clutch switching lever is in the ON position and the auxiliary gear shift lever is operated toward the high speed side, the hydraulic clutch switching lever will automatically switch from the ON position to the OFF position in conjunction with the auxiliary gear shift lever. In order to replace this, the hydraulic clutch lever is connected to the sub-shift lever, so when the hydraulic clutch is engaged, it is possible to reliably prevent the danger of the hydraulic clutch being inadvertently engaged due to the operator's carelessness and causing the aircraft to suddenly fly off at high speed. This further improves the safety of the tractor.
第１図は本考案を装備した農用トラクタの平面
図、第２図は同上の側面図、第３図は要部の作用
説明図、第４図は要部の背面図である。
図中４は油圧クラツチ、６は副変速レバー、７
は油圧クラツチ切換レバー。
Fig. 1 is a plan view of an agricultural tractor equipped with the present invention, Fig. 2 is a side view of the same, Fig. 3 is an explanatory view of the operation of the main parts, and Fig. 4 is a rear view of the main parts. In the figure, 4 is a hydraulic clutch, 6 is a sub-shift lever, and 7 is a hydraulic clutch.
is the hydraulic clutch switching lever.
Claims (1)
ーを副変速レバーの近傍に設け、副変速レバーが
高速位置にあるときには上記油圧クラツチ切換レ
バーのOFF側からON側への操作が規制され、油
圧クラツチ切換レバーがON位置にあるときには
副変速レバーを高速側へ操作した際油圧クラツチ
切換レバーが副変速レバーに連動してON位置か
らOFF位置に自動的に切換わるべく油圧クラツ
チレバーを副変速レバーに連繋せしめたことを特
徴とするトラクタにおけるライブPTO用油圧ク
ラツチの安全装置。 A travel system hydraulic clutch switching lever for live PTO is installed near the auxiliary gear shift lever, and when the auxiliary gear shift lever is in the high speed position, the operation of the hydraulic clutch switching lever from the OFF side to the ON side is restricted, and the hydraulic clutch switching lever When is in the ON position, the hydraulic clutch switching lever is linked to the auxiliary gear shift lever so that when the auxiliary gear shift lever is operated to the high speed side, the hydraulic clutch switching lever is linked to the auxiliary gear shift lever and automatically switches from the ON position to the OFF position. A safety device for a hydraulic clutch for live PTO on a tractor, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984081964U JPS60193828U (en) | 1984-06-04 | 1984-06-04 | Safety device for hydraulic clutch for live PTO on tractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984081964U JPS60193828U (en) | 1984-06-04 | 1984-06-04 | Safety device for hydraulic clutch for live PTO on tractors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60193828U JPS60193828U (en) | 1985-12-24 |
| JPH0224336Y2 true JPH0224336Y2 (en) | 1990-07-04 |
Family
ID=30629246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984081964U Granted JPS60193828U (en) | 1984-06-04 | 1984-06-04 | Safety device for hydraulic clutch for live PTO on tractors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60193828U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5846886B2 (en) * | 2011-12-13 | 2016-01-20 | Ｕｄトラックス株式会社 | PTO mechanism |
-
1984
- 1984-06-04 JP JP1984081964U patent/JPS60193828U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60193828U (en) | 1985-12-24 |
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