JPS6345132Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention aims to automatically move the stem culms planted in the field by following the stem culms planted in the field. The device is electrically connected to a pulling device that raises the device and a control mechanism that automatically operates the steering device, and detects the lateral position of the machine body with respect to the culm to be reaped in a state in which the machine body protrudes in the lateral direction. The present invention relates to a reaping harvester equipped with a stem culm contact sensor.

This type of reaping/harvesting machine can be used when automatic steering is difficult, such as when the stem culm is severely bent.
If the stem culm contact sensor is made to protrude laterally of the aircraft as in the case of automatic steering, there may be problems such as damage to the sensor due to the inverted stem culm falling onto the sensor. , Conventionally, in order to eliminate such problems, for example,
As disclosed in Japanese Patent No. 56548, there has been known a sensor in which the sensor is swung and stored in the lower inner side of the weeding body, and is held in the stored position.

However, in the above-mentioned conventional device, when the aircraft is moving forward, the sensor is protected by the grass divider, but since the lower and rear sides of the grass divider are open, when the aircraft is moving backward, the grass divider protects the sensor. The unharvested stem culm at the rear came into contact with the sensor in the retracted position, and damage to the sensor could not be avoided due to this contact.

In addition, in the above-mentioned conventional device, since the sensor is stored by swinging, it is necessary to prevent the detection operation from being performed when the sensor swings during storage. A switching means capable of switching the automatic steering control circuit to a non-operating state must be provided, such as a changeover switch for switching the sensor to the retracted position and automatic steering. There are disadvantages such as the troublesome work of switching to a non-operating state and the cost increase due to the provision of the switching means.

The present invention has been developed in view of the above-mentioned circumstances, and aims to avoid damage to the stem culm contact sensor for automatic steering as much as possible when automatic steering is not performed, and to easily avoid damage to the stem culm contact sensor. The purpose is to provide harvesting machines.

In the reaping harvester according to the present invention, the stem culm contact sensor is removably installed at a detection position on the front side of the pulling device, and the stem culm contact sensor is removed from the detection position. The present invention is characterized in that a holder for storing the plant in a state where contact with the stem culm is regulated is provided near the rear part of the lifting device.

In other words, when stopping the automatic steering, the stem culm contact sensor is activated when the stem culm comes into contact with a stem culm introduced from the front side, or with a stem culm that is not reaped at the rear side of the pulling device when the stem culm moves backward. The culm contact sensor is detachable so that it can be moved to a holder near the rear of the pulling device, which is extremely rare, so it is no longer necessary to simply swing and store the culm contact sensor inside the weeding tool. Compared to the previous model, when moving backwards, contact with the uncut stem culm on the rear side of the weeding implement can be avoided as much as possible, and the stem culm etc. comes into contact with the stem culm contact sensor. This has the effect of making it easier to avoid damage.

In addition, the stem culm contact sensor can be placed in a holder near the rear of the lifting device while still in a position where it can be detected, and in this new position it does not come into contact with the stem culm and does not activate the detection, so automatic operation is possible. Therefore, there is no need to take special measures to switch automatic steering to a non-operating state, which reduces costs and also reduces the need for stem culm contact sensors. The simple work of just replacing the parts has brought about good results.

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

As shown in Figures 1 and 2, a pair of left and right stem culm introduction paths A ₁ and A ₂ are formed between three weeding tools 1 arranged side by side in the horizontal direction, and as the machine advances, course
A device 2 for raising the stem culm introduced into A ₁ and A ₂ ;
a clipper-type cutting blade 3 for cutting the base of the raised stem culm;
An auxiliary conveyance device 4 that merges the harvested stem culms, a device 5 that conveys the merged stem culms to the rear, a threshing device 7 that handles the stem culms from this device 5 while being held and conveyed by a feed chain 6, and a pair of left and right Crawler traveling devices 8a, 8b, driver seat 9, etc. are provided, and
The structure is such that the stem culms planted in the field are harvested as the field progresses, and the harvested stem culms are sequentially handled and processed. Note that this combine harvester is normally set to perform circular mowing work with the uncut stems located on the left side of the machine body.

As shown in FIG. 2 and FIG. 3, a pair of left and right steering clutches 10a, 10 are biased and actuated to separately connect and disconnect the drive of the left and right crawler traveling devices 8a, 8b.
b is provided in the traveling transmission case 11, and includes a pair of left and right hydraulic cylinders 12a, 12b that separately operate the clutches 10a, 10b, and an electromagnetic control valve 13 that selectively operates the cylinders 12a, 12b. is provided. On the other hand, the second
4 and 5, a sensor case 14 is provided in front of the lifting device 2 and at the left lateral end of the paths A ₁ and A ₂ .
A pair of sensor bars 15a and 15b projecting from the case 1 to the inside and outside of the body from the case 1.
4, these sensor bars 15a, 15b are provided so as to be able to swing rearward around the vertical axes Xa, Xb, and are biased to return to a posture along the width direction of the fuselage.
Due to the rearward swinging displacement of It is configured to detect the interval. An electric switch 16a is pressed by the sensor bar 15a when the lateral distance between the left lateral end of the path and the adjacent stem culm to be harvested becomes smaller than a set distance.
and an electric switch 16b that is pressed against the sensor bar 15b when the lateral distance between the left lateral end of the path and the adjacent non-reapable stem culm is smaller than a set distance. 16a and 16b are connected to the control valve 13 via electric wires 17. When the lateral distance between the left lateral end of the route and the adjacent stalk culm to be reaped becomes smaller than the set interval, the left steering clutch 10a is automatically disconnected so as to turn the machine to the left, and the left lateral end of the route is When the lateral distance between the lateral end and the adjacent non-reaping target stem culm becomes smaller than a set distance, the right steering clutch 10b is automatically disconnected so as to turn the aircraft to the right. , is configured to automatically steer so that the lateral distance of the left lateral end of the path to the adjacent stalk culm to be reaped and to the adjacent stalk culm not to be harvested is maintained larger than a set interval.

In short, the left lateral end of the path is automatically steered to move between the reaping target culm and the non-reaping target culm, and the reaping target culm is introduced into the stem culm introduction path. Moreover, the machine body is configured to automatically follow and move the stem culm planted in the field while avoiding pushing down and damaging the non-reaping target stem culm at the left lateral end of the path.

To attach the sensor case 14 to the front of the lifting device 2, the sensor case 14 is removably engaged with the sensor bars 15a and 15b into the first holder 18 fixed to the weeding tool support rod 19. It is secured with bolts.

Further, as shown in FIGS. 7 and 8, a second holder is provided on the rear wall of the lifting device 2, in which the sensor case 14 is removably engaged with the sensor bars 15a and 15b and fixed with bolts. 20 is attached, and the sensor case 14 removed from the first holder 18 is detachably attached to the second holder 20.
At the same time, the sensor bars 15a and 15b which have been removed from the first holder 18 are stored in a state where the lifting device 2 exerts a covering function to restrict the contact of the stem culm with the sensor bars 15a and 15b.

Further, the electric wire 17 is connected to the sensor case 14.
The sensor case 14 is attached to the aircraft in a flexible state that allows for the replacement of the sensor case 14.
The configuration is such that it can be performed without performing any special operations on 7.

Reference numerals 21a and 21b in the figure are normally open first and second electric switches interposed in series between the electric switches 16a and 16b and the power source, and the first electric switch 21a is connected to the sixth electric switch. As shown in the figure,
When the reaping clutch lever 22, which intermittents the drive of the reaping processing section, is operated from the off position OFF to the on position ON, it is pressed and operated. It is attached to the upper wall of the case 14, and when the sensor case 14 is attached to the first holder 18, it is inserted by contact with the first holder 18, and when the sensor case 14 is attached to the second holder 20, the second It is constructed so that it can be inserted into a flexible hole 23 formed in the holder 20 to perform a cutting operation. Therefore, automatic steering is performed based on information on the sensor bars 15a and 15b only when the reaping processing section is in the driving state and the sensor saas 14 is attached to the first holder 18. .

In addition, in the embodiment, the reaping contact sensors 15a, 1
Although a sensor bar is illustrated as 5b, other shapes such as a plate-like bar may be used.

Furthermore, in the embodiment, the sensors 15a and 15b are replaced by replacing the sensor case 14, but the sensor 15a and 15b are replaced.
It may be implemented in a form in which only a and 15b are replaced.

Further, in the embodiment, the control mechanism for operating the steering clutches 10a, 10b as a steering device is constructed using hydraulic cylinders 12a, 12b and an electromagnetic control valve 13, but for example, an electric motor may be used. It may be configured and implemented in other forms, such as using the same method.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaping and harvesting machine according to the present invention, in which Fig. 1 is a side view of the front part of the combine, Fig. 2 is a schematic plan view of the same part, Fig. 3 is a circuit diagram, and Fig. 4 is a sensor bar. FIG. 5 is a partially cutaway front view of the mounting portion; FIG. 6 is a side view of the reaping clutch lever mounting portion; FIG. 7 is a side view showing the sensor bar in its retracted state; FIG. 8 is a partially cutaway side view of the same state. 2... Pulling device, 10a, 10b... Steering device, 15a, 15b... Sensor, 17... Electric wire, 20... Holder, A ₁ , A ₂ ... Stem culm introduction route.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A pulling device 2 that pulls up the stem culms to be reaped that are introduced into the stem culm introduction paths A ₁ and A ₂ as the machine advances, and a steering device 10a that automatically Stem culm contact sensors 15a and 15b are provided which are electrically linked to the control mechanism for operating the stem culm 10a and which detect the lateral position of the machine body with respect to the stem culm to be harvested in a state in which the machine body is protruded in the lateral direction of the machine body. In the reaping harvester, the stem culm contact sensor 15a,
15b is removably installed at the detection position on the front side of the lifting device 2, and the stem culm contact sensor 15a, 1 is removed from the detection position.
A reaping/harvesting machine characterized in that a holder 20 for storing the 5b in a state where contact with the stem culm is regulated is provided near the rear part of the pulling device 2. 2. Connect the electric wire 17 connecting the sensors 15a, 15b and the control mechanism to the sensors 15a, 15.
2. The reaping harvester according to claim 1, which is a utility model, and is fixed to the fuselage in a flexible state that allows for the replacement of the reaping and harvesting machine.