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Working vehicle

一种变更操作、操作部件的技术，应用在农业、牵引车、机动车等方向，能够解决机体危险等问题，达到提高可靠性、防止操作偏差的效果

Inactive Publication Date: 2007-08-01
YANMAR POWER TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For ordinary rice transplanters, the high-speed position of the accelerator lever (accelerator) of the engine speed is changed during operation, and the speed of the vehicle is changed by operating the shift operating lever for shifting. However, when adding seedlings, even if the shift operating lever is operated to the neutral position To stop the body, as long as the accelerator lever does not return to the low speed position from high speed, the engine speed will remain at high speed and quieter work cannot be performed
In addition, when the engine speed is low under the high speed state of the continuously variable transmission mechanism, there is a possibility that the output may become insufficient, or when the continuously variable transmission mechanism and the engine speed are both high and the clutch is engaged, there is a danger that the body will suddenly start

Method used

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Fig. 1 is the side view of the whole, Fig. 2 is its plan view, Fig. 3 is its front view, Fig. 4 is the side view of the car body, Fig. 5 is its plan view, among the figure 1 is the walking vehicle for carrying operators, air-cooled The engine 2 is mounted on the vehicle body frame 3, the front wheel 6 for paddy field walking is supported on the side of the gearbox 4 through the front axle box 5, and the rear wheel 8 for paddy field walking is supported on the rear axle box behind the above-mentioned gearbox 4. 7. And at the both sides of the hood 9 that covers the above-mentioned engine 2 etc., the preparatory seedling loading platform 10 is installed, and at the same time, the above-mentioned gearbox 4 etc. is covered with the car body cover 11 of the operator, and the driver's seat 13 is installed on the seat frame 12. Above the rear side of the vehicle body cover 11 ...

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Abstract

The invention aims to quietly and effectively drive an engine to perform efficient work by surely reducing the rotational frequency of the engine in a low working speed at traveling or the like or in a stop state of a working vehicle such as a planting machine in which a speed change gear for changing working speed such as vehicle speed is driven by the output of the engine. The working vehicle is provided with the speed change gear 48 which is driven by the output of the engine 2 to change the working speed, and a working speed operating member 30 for performing the speed changing operation of the speed change gear 48 is interlocked with an engine rotation changing member 87 for changing the rotational frequency of the engine 2 through an interlocking member 88.

Description

technical field [0001] This invention relates to work vehicles, such as a rice transplanter, a tractor, or a combine, which has a seedling loading platform and a seedling planting claw, and performs a seedling planting operation continuously, for example. Background technique [0002] In the prior art, there is a technique of using a hydraulic continuously variable transmission mechanism (HST) composed of a variable-capacity hydraulic pump and a hydraulic motor as the travel transmission device of the rice transplanter. The angle of the swash plate of the speed change mechanism is changed. (eg, Japanese Patent No. 2979580) [0003] For ordinary rice transplanters, the high-speed position of the accelerator lever (accelerator) of the engine speed is changed during operation, and the speed of the vehicle is changed by operating the shift operating lever for shifting. However, when adding seedlings, even if the shift operating lever is operated to the neutral position To stop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C11/02F02D31/00F02D11/02B62D49/00A01B67/00B60K20/02B60W10/04B60W10/10B60W10/103F02D11/04F02D29/00F16H63/08G05G9/00G05G11/00
CPCF02D31/001A01B67/00F02D31/00
Inventor 井上诚
Owner YANMAR POWER TECHNOLOGY CO LTD
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