JP2813699B2 - Loading platform lifting device of reaper and harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for raising and lowering a carrier in a reaper having a carrier such as a rush harvester or a carry binder.

[0002]

2. Description of the Related Art Conventionally, in this type of reaper, as disclosed in Japanese Utility Model Application Laid-Open No. 3-22620, a loaded stalk culm is lowered onto the ground by raising a dump truck. It has been known.

[0003]

When the load is discharged by this dump, if the load is large and the stems and stems cannot all be lowered by a single dump, the dump state is left to provide a new lowering place. The aircraft may be advanced slightly. However, when the dump forward operation is performed by the reaper, it is often necessary to perform a preliminary operation before the forward operation due to the presence of the reaper. In other words, if the ground in front of the fuselage is higher due to the dump advance, the mowing part will rush into the ground, or the ground will be flat due to the sinking of the mowing part due to the pre-balance due to the reduction of the loading stem by dumping. Check the ground condition in front of the fuselage to prevent the reaper from touching the ground, such as if it could rush into the ground,
If necessary, the reaper is slightly raised. Conventionally, it is necessary to separately check the ground condition and raise the cutting unit before the forward movement operation of the machine in the dumping state.Some people feel that the operation is complicated and troublesome, and the cutting unit is forgotten. Could not be completely eliminated. An object of the present invention is to make it easier to lower the loaded stem by raising the dumping by always devising the cutting unit to rise by a certain amount when performing the forward operation when the loading dump is raised.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a cutting unit for cutting planted stems and limbs, which can be moved up and down at the front of the body, and a loading platform for loading the cut stems and culms. Is mounted on the rear part of the fuselage so that the dump truck can be moved up and down, and a lifting mechanism that dumps and lowers the loading platform and a lifting mechanism that moves the harvesting unit up and down so that the harvesting unit rises by a certain amount as the loading platform rises. It is characterized in that means are provided.

[0005]

According to the above-mentioned feature, the mowing part is automatically raised by a fixed amount when the loading platform is dumped by the function of the linking means. It is only necessary to perform one type of operation, ie, only the forward operation of the aircraft, which is easier than the conventional three-type operation of checking the ground condition and raising the mowing part separately before the forward operation. And easier,
Due to the structure, it is possible to prevent the operation from being forgotten, and it is also possible to eliminate the possibility that the reaper may come into contact with the ground. In other words, the type of operation could be reduced by raising the mowing part regardless of the ground condition in front of the aircraft.

[0006]

As a result, the harvesting that can simplify and facilitate the lowering operation of the loading stem by dumping while preventing the harvesting portion from coming into contact with the ground by a structural device that links the rising of the dump truck and the rising of the cutting portion. A harvester could be provided.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings in the case of a rush harvester which is an example of a reaper. FIGS. 2 and 3 show a rush harvester in which a cutting unit A is disposed in front of the traveling body B. The cutting unit A includes a weeding device 1, a raising device 2, a cutting device 3, a nipping and conveying device 4, The traveling body B is composed of a binding unit 5, a lateral feed locking and conveying device 6, a selection device 7, and the like, and the traveling machine body B is composed of a control unit 8, a crawler traveling device 9, a loading platform 10 on which the bundled bundle of stems and stems is loaded, and the like. I have. Reference numeral 11 denotes an engine, and 12 denotes a traveling mission. The reaping unit A is configured to be able to swing up and down around the horizontal axis P by the first hydraulic cylinder 18, and can be raised and lowered by operating the lifting lever 20. The loading platform 10 is moved up and down by a second hydraulic cylinder 19 around a horizontal axis X at a rear portion, and a traveling body B is moved by a switching mechanism of a known technique (not shown).
Can be lifted and lowered in parallel with the loading platform 1 by a switching lever 22 disposed on the floor portion of the control unit 8.
The lifting operation of 0 can be freely selected between dump and lift. The rush harvester has an automatic directional control device C that automatically steers the aircraft so that it follows the symmetrically planted rush.
And the loading platform 10 to discharge the loaded rush bundle onto the ground.
The loading platform raising / lowering control device D that automatically raises the reaping unit A by a certain amount when the dumping is raised, and the reaping unit A is automatically activated when the main clutch pedal 13 is depressed in the automatic directional control state by the automatic directional control device C. There is provided a mowing unit elevating mechanism E for raising the fixed amount, which will be described below.

An automatic direction control device C, which is a known technique, will be briefly described. As shown in FIGS. 1 and 3, weeding frame 1
A pair of contact sensors 14 and 14 provided at the tip of A,
The side clutches 9a of the left and right crawler traveling devices 9, 9
An automatic direction control device C is constituted by the clutch control valve 15 of the clutch cylinders 9b, 9b for turning on / off the 9a and the control device 16. The contact sensor 14 includes a potentiometer 14A and a contact 14a, and calculates a detection value of a left-right distance L to the sensor cover 14B from an angle at which the contact 14a comes into contact with the rush and swings backward. The clutch control valve 15 is operated so that the detected value is maintained within the predetermined range. A switch 17 turns on / off automatic direction control. The reaping unit elevating mechanism E includes a first
A hydraulic cylinder 18, a first control valve (corresponding to a mowing unit elevating mechanism) 18S, an ascending switch 23 that is operated by swinging up of the mowing frame Af, a treading switch 24 operated by depressing the main clutch pedal 13, And a control device 16. In other words, when the main clutch pedal 13 is depressed to operate the main clutch (not shown), the depression switch 24 is operated, and thereby the elevation switch 23 is operated (the leading end of the reaping unit A is 1 to 1).
The control device 16 functions so as to drive the first hydraulic cylinder 18 (which rises by 50 mm to 200 mm). This mechanism is employed by paying attention to performing an operation of depressing the main clutch pedal 13 in order to temporarily shift and reverse during a turn on a ridge in a mowing operation.

Next, the carrier lift control device D will be described. As shown in FIG. 1 and FIG. 2,
The second hydraulic cylinder 19 and the second control valve (corresponding to a carrier lift mechanism) 19S, the carrier lift switch 27 provided on the operation panel 26, the first hydraulic cylinder 18, the first control valve 18S, and the switching lever 22 It comprises a detection switch 21 for detecting that it is at the dump position, and an up switch 23. That is, when the loading / lowering switch 27 is tilted upward while the switching lever 22 is in the dumping position and the detection switch 21 is operated, first, the first control valve 18S is operated and the reaping unit A is moved to the lifting switch 23. When the raising switch 23 is operated, the raising operation of the mowing part A is stopped, and then the second control valve 19 is operated.
The control device (corresponding to the linking means) 16 functions so that S is operated and the dumping of the bed 10 is started and controlled in an order. Therefore, even when the traveling body B is slightly advanced in order to lower all the loaded stem culm bundles while the loading platform 10 is being lifted up, the cutting section A is automatically brought into a state where it can be prevented from contacting the ground. It is operated by.

[0010] In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a control system diagram showing a configuration of each control device.

Fig. 2 Side view of a rush harvester

Fig. 3 Plan view of rush harvester

[Explanation of symbols]

 Reference Signs List 10 loading platform 16 linking means 18S reaping section lifting mechanism 19S loading platform lifting mechanism A reaping section

Claims (1)

(57) [Claims] 1. A cutting section (A) for cutting planted stems and culms is provided at the front of the body so as to be movable up and down, and a loading platform (10) for loading the cut stems and culms is provided at the rear of the body so as to be able to move up and down by dumping. Then, the loading section (10) is brought into a state in which the cutting unit (A) is raised by a predetermined amount as the loading section (10) is dumped upward.
A loading / lowering device of a harvesting and harvesting machine provided with a linking means (16) for linking a loading / lowering mechanism (19S) for raising and lowering the dumper with a reaping section lifting / lowering mechanism (18S) for raising and lowering the reaping section (A).