JPS5919795Y2 - Mobile agricultural machine with starter motor - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mobile agricultural machine equipped with a starter motor, such as a combine harvester or a tractor, in which the engine is started by a starter motor.

Generally, to start the engine in this type of mobile agricultural machine, first operate the accelerator lever from the engine stop position to the high speed side, position the lever between the low speed position and the high speed position, and then start the starter motor. The starter motor is started by switching the switch from the off position to the starting position via the on position, and thereby the engine is started by receiving the driving force from the starter motor.

When the accelerator lever is operated to the engine stop position to stop the engine, the start switch, which automatically returns from the start position to the on position, must be switched from the operator position to the off position. However, as mentioned above, since the engine is stopped using the accelerator lever, there have been cases where the driver has forgotten to turn the start switch to the OFF position, causing the battery to over-discharge. .

Therefore, the present invention was devised to solve this problem, and its purpose is to change the start switch for starting the starter motor from the on position to the off position when the engine is stopped. To provide a mobile agricultural machine with a starter motor that can automatically switch over and eliminate the need to forget to turn off the start switch.

That is, the present invention is characterized in that a stop sensor is provided at the engine stop position in the operating trajectory of the accelerator lever, and the sensor is configured to electrically or mechanically switch the start switch for starting the starter motor to the off position. It is something.

Embodiments of the present invention will be described below based on illustrative drawings.

In the figure, 1 is a machine body equipped with a traveling device 2 at the bottom, a reaping device 3 is supported at the front part of the machine body 1, and a threshing device 4 is mounted at the top. An engine with a starter motor is mounted on the fuselage 1 to drive the traveling device 2, the reaping device 3, and the threshing device 4.

Further, a pilot seat 5 and a pilot box 6 are provided in the front portion of one side of the fuselage 1.

The control box 6 is provided with an accelerator lever 7 for adjusting the output of the engine, a start switch 8 for starting the starter motor, a speed change lever 9, a hand brake lever 10, etc. 7 is operated from the engine stop position to the high speed position via the low speed position to adjust the output of the engine, and the start switch 8 is started by inserting the engine key into its key hole and changing from the OFF position to the ON position. Switch to the position,
The starter motor is activated, and after this activation, the starting position is manually returned to the engaged position.

Therefore, the engine stop position of the accelerator lever 7 is located on the outer wall of the control box 6, and the accelerator lever
A stop sensor is provided at the low-speed end of the operation locus 7, and the sensor is configured to be activated when the accelerator lever 7 is operated to the engine stop position, and the start switch is activated by the operation of the stop sensor. 8
When switching the start switch 8 from the ON position to the OFF position, a limit switch 11 is used as the stop sensor, and the limit switch 11 is connected to the control box 6. is fixed near the engine stop position of the accelerator lever 7 by the outer wall of the accelerator lever 7, and the contact piece 12 of this limit switch 11 is positioned within the operation locus of the accelerator lever 7, and the accelerator lever 7 is moved to the engine stop position. When operating the lever 7, the protrusion 7a protrudes from the contact piece 1.
The normally closed contact of the limit switch 11 is interposed in the electric circuit of the start switch 8.

If the start switch 8 is to be switched mechanically, an L-shaped operating rod 13 is used as the stop sensor as shown in FIG. 4, and the operating rod 13 is pivotally connected to the outer wall of the control box 6. together with the accelerator lever 7
is provided with an engaging portion 7a that engages with the operating rod 13, and one end portion of the operating rod 13 is provided on the accelerator lever 7 within a movement locus of the engaging portion 7a caused by the operation of the accelerator lever 7. While positioning the start switch 8,
A ring-shaped switching member 14 that rotates when the switch 8 is switched is provided, and an arm 1 that projects from the switching member 14 is provided.
5 and the other end of the operating rod 13 are interlocked and connected via an operating cable 16.

The combine harvester with starter motor of the present invention is constructed as described above, and to start the engine mounted on the machine body 1, first operate the accelerator lever 7 from the engine stop position to the high speed side, and then move the lever 7 to the low speed side. and the high speed position, and in this state, the start switch 8 is switched from the off position to the large position to the starting position to start the starter motor provided in the engine, thereby starting the engine. This is done by starting the .

The start switch 8 is automatically returned to the on position after the start of the engine is completed.

On the other hand, to stop the engine, it is sufficient to simply operate the accelerator lever 7 to the engine stop position. That is, as the lever 7 is operated to the engine stop position, the contact piece 12 of the limit switch 11 is activated via the protrusion 7a. Pressure activated,
As a result, the electric circuit of the start switch 8 is opened, and the switch 8 is electrically switched to the OFF position, or the operating rod 13 is moved as the accelerator lever 7 is operated to the engine stop position. It engages with an engaging portion 7a provided on the accelerator lever 7 and swings in conjunction with the accelerator lever 7, and the switching member 14 rotates via the operating cable 16 due to the swing of the operating rod 13. Then, the start switch 8 is mechanically switched from the on position to the off position.

Note that when the start switch 8 is switched electrically as described above, the display of the switch 8 is in the ON position, but there is no problem. When operated from the stop position to the high speed side, the contact piece 12 of the limit switch 11 is released from being pressed by the accelerator lever 7,
The electric circuit of the start switch 8 is closed and the start switch 8 is electrically placed in the human position, so that the starter motor is started by switching the start switch 8 from the on position to the start position.

As explained above, the mobile agricultural machine with a starter motor according to the present invention is provided with a stop sensor at the engine stop position in the operation trajectory of the accelerator lever, and when the engine is stopped, the start switch for starting the starter motor is switched to the OFF position. Therefore, even if the engine is stopped by operating the accelerator lever to the engine stop position, there is no chance of forgetting to switch the start switch to the OFF position. As the accelerator lever is operated to the engine stop position, the start switch can be automatically switched to the OFF position, and it has become possible to reliably prevent forgetting to switch the switch.

Moreover, the electric circuit that is opened by switching from the ON position to the OFF position in the present invention is the electric circuit of the starter motor and does not open the power supply circuit, so even if the electric circuit of the starter motor is opened, It has no effect on the power supply circuit.

Therefore, for example, when the reaping section of a combine harvester is electrically raised and lowered, the electric section can be operated even after the engine is stopped.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall perspective view, FIG. 2 is an enlarged front view of the main parts, FIG. 3 is a side view of the same, and FIG.
The figure is a partly cutaway plan view of the main part showing another embodiment, and FIG. 5 is a front view of the main part with the same part cut away. 7... Accelerator lever 18... Start switch, 11... Limit switch (stop sensor), 13... Operating rod (stop sensor), 14... ...Switching member.

Claims (3)

[Scope of utility model registration request] (1) In a mobile agricultural machine that is equipped with a starter motor and whose engine output is adjusted by means of an accelerator lever, a stop sensor is provided at the engine stop position in the operation locus of the accelerator lever; - a movement with a starter motor, characterized in that the starter motor is configured to be activated when the engine is operated to a stop position, and the start switch for starting the starter motor is switched to an off position by the operation of the stop sensor. Agricultural machinery. (2) The cell according to claim 1 of the utility model registration, characterized in that a limit switch is used as a stop sensor, and the switch is configured to electrically switch a start switch for starting a starter motor to an off position. Mobile agricultural machinery with motor. (3) The start switch for starting the accelerator motor is provided with a switching member that controls the switch, and the stop sensor is mechanically operated by operating the accelerator lever to the engine stop position. Utility model registration claim 1, characterized in that the switching member is operatively connected to a sensor, and the switching member mechanically switches the start switch to the off position.
A mobile agricultural machine with a starter motor as described in .