Working vehicle
US-9894827-B2 · Feb 20, 2018 · US
Work vehicle having implement
US10816063B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10816063-B2 |
| Application number | US-201816134097-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2018 |
| Priority date | Sep 18, 2018 |
| Publication date | Oct 27, 2020 |
| Grant date | Oct 27, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A work vehicle having an implement includes an engine control unit for controlling an engine and detecting an abnormal state of the engine, a PTO transmission mechanism for transmitting power from the engine to the implement, a PTO clutch for switching ON/OFF power transmission by the PTO transmission mechanism and a clutch control circuit configured to render the PTO clutch OFF based on a detection signal outputted by the engine control unit at time of detection of the abnormal state.
First claim
Opening claim text (preview).
The invention claimed is: 1. A work vehicle having an implement, the work vehicle comprising: an engine; an engine control unit controlling the engine and detecting an abnormal state of the engine; a traveling transmission mechanism transmitting power from the engine to a traveling device; a PTO transmission mechanism transmitting power from the engine to the implement; a PTO clutch switching ON/OFF power transmission by the PTO transmission mechanism; and a clutch control circuit configured to render the PTO clutch OFF based on a detection signal outputted by the engine control unit at time of detection of the abnormal state, wherein the clutch control circuit includes a clutch power supply line supplying power for a clutch operation of the PTO clutch, the clutch power supply line incorporating a clutch switch configured to block power supply by the clutch power supply line in response to the detection signal. 2. The work vehicle of claim 1 , wherein the clutch switch comprises a relay switch, and a coil of the relay switch is incorporated in a control line for transmitting the detection signal. 3. The work vehicle of claim 2 , wherein one end of the control line is connected to the engine control unit, the other end thereof is connected to the clutch power supply line and the detection signal comprises a ground signal. 4. A work vehicle having an implement, the work vehicle comprising: an engine; an engine control unit controlling the engine and detecting an abnormal state of the engine; a traveling transmission mechanism transmitting power from the engine to a traveling device; a PTO transmission mechanism transmitting power from the engine to the implement; a PTO clutch switching ON/OFF power transmission by the PTO transmission mechanism, the PTO clutch comprising an electromagnetic solenoid; and a clutch control circuit configured to automatically render the PTO clutch OFF due to a detection signal outputted by the engine control unit at time of detection of the abnormal state. 5. The work vehicle of claim 4 , wherein the clutch control circuit includes a clutch power supply line supplying power for a clutch operation of the PTO clutch, the clutch power supply line incorporating a clutch switch configured to block power supply by the clutch power supply line in response to the detection signal. 6. The work vehicle of claim 5 , wherein the clutch switch comprises a relay switch, and a coil of the relay switch is incorporated in a control line for transmitting the detection signal. 7. The work vehicle of claim 6 , wherein one end of the control line is connected to the engine control unit, the other end thereof is connected to the clutch power supply line and the detection signal comprises a ground signal.
Assignees
Inventors
Classifications
directly from an engine shaft · CPC title
the tension being a function of engine running condition · CPC title
with two or more cutters · CPC title
Circular path · CPC title
Manual adjustment · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10816063B2 cover?
- A work vehicle having an implement includes an engine control unit for controlling an engine and detecting an abnormal state of the engine, a PTO transmission mechanism for transmitting power from the engine to the implement, a PTO clutch for switching ON/OFF power transmission by the PTO transmission mechanism and a clutch control circuit configured to render the PTO clutch OFF based on a dete…
- Who is the assignee on this patent?
- Kubota Kk
- What technology area does this patent fall under?
- Primary CPC classification F16H7/0827. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 27 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).