JPH0220933Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is equipped with a grain tank for storing threshed paddy, and a paddy delivery tube for delivering the paddy in the grain tank to another transport vehicle etc. This relates to a combine harvester equipped with.

A combine harvester equipped with this type of grain tank and a paddy delivery pipe is known, for example, from Japanese Utility Model Application Publication No. 121357/1983, and during reaping and threshing work in the combine, the paddy delivery pipe is mounted on a support stand attached to the machine body. When the grain tank is full of paddy, the reaping and threshing operation is stopped, and the paddy delivery tube is tilted up and down as appropriate so that the discharge port at its tip can be seen onto the cargo platform of a truck or the like. , the paddy in the grain tank is delivered to a cargo platform such as a truck. In this case, the paddy delivery tube for sending out the paddy in the grain tank is quite long, and if the combine is run with the paddy delivery tube elevated or turned away from its support base, it may cause vibrations, etc. Collision with other objects may damage the paddy delivery tube, so
When the combine harvester is running, the paddy delivery cylinder must always be placed on the support stand of the combine harvester.

However, the conventional combine harvester has its traveling operation,
Since the structure is such that the lifting, raising, and turning operations of the paddy delivery tube are performed separately, it is possible to accidentally run the combine without placing the long paddy delivery tube on the support stand.
The paddy delivery cylinder was often damaged.

The present invention provides that, in a combine harvester equipped with a grain tank and a paddy delivery pipe, if the travel gear lever is set to a position other than neutral without the paddy delivery pipe being placed on its support base, an alarm such as a buzzer or lamp will be activated. The device is designed to operate automatically to prevent damage to the paddy delivery tube caused by accidentally running the combine harvester without placing the paddy delivery tube on the support stand.

The present invention will be explained below with reference to the drawings of the embodiments. In the drawings, reference numeral 1 indicates a combine harvester body supported on a frame 3 having a pair of left and right traveling crawlers 2. The right side is equipped with a threshing section 4, and the right side is equipped with operation control sections such as an operation column 5 and a seat 6.The front part of the machine body 1 is equipped with a weeding body 8, a grain culm lifting mechanism 9, a cutting blade mechanism 10, and a grain culm transport mechanism. Reaping pre-processing section 7 consisting of 11 etc.
However, the lower frame 12 protrudes forward from the fuselage 1.
and an upper frame 13 that protrudes forward from the threshing section 4. A grain tank 14 is mounted behind the seat 6 on the right side of the upper surface of the fuselage 1. The paddy threshed by the threshing section 4 is sequentially fed into the threshing section 14 using a hoisting cylinder (not shown),
Further, on the side of the operation column 5, there is a travel speed change lever 15 for operating the combine into neutral settings such as forward travel, reverse travel, and travel stop.
A reaping clutch lever 16 for OFF operation is provided for each.

At the rear of the grain tank 14 is a paddy conveying cylinder 17.
is inserted so that its axis is vertical and can freely rotate around this axis, and the lower end of the paddy conveying tube 17 is opened at the bottom of the grain tank 14 so that the paddy in the grain tank 14 can enter therein. , the upper end of the paddy transport cylinder 17 protrudes from the upper surface of the grain tank 14. On the other hand, on the upper surface of the combine, a paddy delivery pipe 18 is disposed that intersects with the paddy transport pipe 17, extends to the front part of the combine, and has a paddy discharge port 19 at the front end,
The rear end of the paddy delivery cylinder 18 is connected to the upper end of the paddy transport pipe 17 so that the paddy delivery pipe 18 can move up and down freely, and a paddy delivery pipe is installed between the paddy delivery pipe 18 and the paddy transport pipe 17. A hydraulic cylinder 19 for raising and lowering the cylinder 18 is provided. Further, screws 20 and 21 are inserted into the paddy conveying cylinder 17 and the paddy sending cylinder 18, respectively, and the screws 20 and 21 are connected to both the cylinders 17 and 18.
The paddy in the grain tank 14 is discharged from the paddy discharge port 19 through the paddy transport cylinder 17, the paddy delivery cylinder 18, and the paddy discharge port 19 by driving both of them in rotation with one power source. is configured to do so. Of the two levers 22 and 23 provided near the operating section of the combine harvester, one lever 22 is a lever for raising, raising, and turning the paddy delivery cylinder 18, and the other lever 2
Reference numeral 3 is for turning ON/OFF the rotation of both screws 20 and 21 in the paddy conveying cylinder 17 and the paddy sending cylinder 18.

The upper frame 13 for the reaping pre-processing section 7 is provided with a support stand 24 on which the paddy delivery cylinder 18 is placed in a substantially horizontal state. This is provided with a first switch 25 that is turned off only when the paddy delivery tube 18 is placed on it, and the operation column 5
or a warning device 26 consisting of a buzzer 27, a lamp 28, or both of these is installed near the alarm,
Only when the traveling speed change lever 15 is set to the neutral position to stop traveling.
A second switch 29 is provided to turn it off,
The first switch 25 and the second switch 29,
It is inserted in series into the power supply circuit 30 to the alarm device 26.

In this configuration, when the paddy delivery cylinder 18 is placed on the support stand 24 when the combine harvester runs, the first
Since the switch 25 is turned OFF, the second switch 29 can be turned off by moving the travel gear shift lever 15 from the neutral position to the combine harvester travel position in this state.
Although the alarm 26 will not operate even if the paddy feed tube 18 is removed from its support base 24, the first switch 26 will be turned ON, so in this state, the travel gear shift lever 15 will not operate. When the combine harvester is moved from the neutral position to the combine running position, the second switch 29 is turned on, thereby activating the alarm 26.

In other words, if the combine harvester is run without the paddy delivery tube 18 placed on its support stand 24, the alarm 2 will be activated.
6 is activated, the operator of the combine harvester only has to operate the paddy delivery tube 18 to be placed on the support stand 24 based on this alarm.

A bypass circuit 31 for the first switch 25 and second switch 29 in the power supply circuit 30 to the alarm 26 includes a reaping switch 32 that turns on when the reaping clutch lever 16 is turned on, and a reaping switch 32 that turns on when the reaping clutch lever 16 is turned on. The rotation of both screws 20 and 21 in the conveying cylinder 17 and the paddy sending cylinder 18 is
If the feed switch 33, which is turned ON when the lever 23 for ON/OFF operation is operated, is installed in series, it will be possible to prevent the paddy from dripping due to reaping work with the paddy feed tube 18 activated. ,
This can be prevented by activating the alarm 26. Another idea is to install a second switch 2 in the power supply circuit 30 to the alarm 26, as shown by the two-dot chain line in FIG.
If only 9 and the sending switch 33 are installed in series, the alarm 26 will be activated when the combine harvester is run after sending out the paddy in the grain tank 14, and the paddy will not be released from the paddy sending tube 18. It is possible to prevent dripping, and in the circuit diagram of Figure 3, 3
4, 35, and 36 are manual switches for selecting automatic alarms.

As described above, in a combine that is equipped with a grain tank and a paddy delivery tube with a built-in screw that can be vertically and horizontally rotated to the grain tank, The machine body is provided with a support stand on which the paddy delivery cylinder is placed, and the support stand is equipped with a first switch that turns off when the paddy delivery cylinder is placed on the support stand.
Further, each of the travel gear levers in the combine harvester is provided with a second switch that turns off only when the travel gear lever is set to neutral, and both of these switches are inserted in series into the power supply circuit to the alarm. If you run the combine harvester without placing the long paddy delivery tube on the support stand of the combine, the alarm will automatically activate, so if you accidentally operate the combine without placing the long paddy delivery tube on the support stand of the combine. This has the effect of reliably preventing accidents that damage the paddy delivery cylinder due to running.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of a combine harvester, FIG. 2 is a plan view of the combine harvester, and FIG. 3 is an electric circuit diagram. DESCRIPTION OF SYMBOLS 1... Combine harvester body, 15... Travel gear lever, 14... Grain tank, 18... Paddy delivery tube, 24... Support stand, 25... First switch, 2
9...Second switch, 26...Alarm.

Claims (1)

[Scope of utility model registration request] A combine that is equipped with a grain tank and a paddy delivery tube with a built-in screw that can be vertically and horizontally rotated to the grain tank to send out the paddy in the grain tank. A support stand is provided on which the paddy delivery cylinder is placed, and a first switch that turns OFF when the paddy delivery cylinder is placed on the support stand is installed, and a travel speed change lever in the combine harvester is equipped with a first switch that turns off when the paddy delivery cylinder is placed on the support stand. A combine harvester with a grain tank is equipped with a second switch that turns off only when the gear shift lever is set to neutral, and both switches are inserted in series into the power supply circuit to the alarm.