JP2575700Y2 - Rolling detection device for transplantation working part in passenger transplanter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting the rolling of a transplant working unit in a riding transplanter configured to forcibly control the rolling of the transplant working unit.

[0002]

2. Description of the Related Art
In this type of riding transplanter, in order to forcibly control the rolling of the transplanting work unit that is connected to the traveling machine in a freely rotatable manner based on the operation of the actuator, the transplanting work is performed using a pair of left and right rolling detectors that contact the field scene. There is a device that detects rolling of a part and controls the operation of the actuator based on the detected rolling. Conventionally, however, the pair of left and right rolling detectors is
Because it was arranged at the left and right outer ends of the transplantation working part, rolling detection was performed at a position separated from the transplanting nail on the outer end most susceptible to rolling, making it difficult to perform highly accurate rolling detection, In addition, when traveling on a ridge where there are many impurities and obstacles, there are drawbacks such as a decrease in detection accuracy due to catching of the impurities and a breakage due to contact with the obstacles.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made with the object of providing a rolling detection device for a transplant working section in a riding transplanter which can eliminate these drawbacks. Then slide on the surface
A portable transplanter that has a float and has a plurality of transplanting claws arranged side by side in a horizontal direction, forcibly performing rolling control based on the operation of an actuator. In providing a pair of left and right rolling detectors for detecting the rolling of the transplant working unit, the pair of left and right rolling detectors are positioned on the front extension line of the transplant nail located at the left and right outer ends and the left and right of the float
It is characterized in that it is disposed at a position rearward of the bulging portion bulging in the direction . According to the present invention, the precision of the rolling detection can be improved by this configuration.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a traveling machine of a riding rice transplanter, and a planting work section 3 is connected to a rear portion of the traveling machine 1 via an elevating link mechanism 2 that operates to raise and lower hydraulic pressure.
The planting work section 3 is rotatably supported by a link connecting frame 4 connected to a rear end of the lifting link mechanism 2 and a boss tube 4a formed at a lower end of the link connecting frame 4. Rolling support shaft 5, a seedling support frame 6 integrally connected to the rear end of the rolling support 5, a planter case 7 integrally connected to the seedling support frame 6, the planter case 7, a plurality of (six in this embodiment) planting claws 8 arranged side by side at predetermined intervals in the left-right direction, the upper end of the seedling support frame 6 and the upper part of the planter case 7. The seedling table 9 and the like are slidably supported in the left-right direction and forcibly reciprocated left and right based on the traversing action of the traversing mechanism provided in the planter case 7. That is, the planting work section 3 includes the traveling machine 1
It is free to roll with the rolling support shaft 5 as a fulcrum with respect to the (link connection frame 4), and at the time of planting work, the planting claw is transferred from the seedling mounting table 9 which is laterally fed by a predetermined pitch in accordance with the planting timing. Numeral 8 scrapes the planted seedlings and plants them on the rice field. All of the above basic configurations are the same as in the past.

[0005] Further, reference numerals 10 and 11 denote a center float and a side float which are juxtaposed at the bottom of the planter case 7 at predetermined intervals in the left-right direction. The main float 10 is located at the center of the planter case 7. Although it is a single thing arranged, the side float 11
It is a pair of left and right parts respectively arranged on both left and right sides of the planter case 7. And these floats 1
Each of 0 and 11 is formed in a rectangular shape that is long in the front and back, and bulging portions 10a and 11a that protrude left and right are formed on the front side thereof. That is, the bulging portions 10a and 11a are located in front of the planting claws 8 disposed near the left and right sides of each of the floats 10 and 11 in plan view, so as to level the rice field.

On the other hand, reference numerals 16 and 17 denote a pair of right and left rolling ammunition each composed of a coil ammunition.
It is interposed between the link connection frame 4 and the seedling mounting support frame 6 in a C-shape to act to maintain the planting work section 3 in a horizontal state.
It is interposed between the armature mounting frame 18 extending upward from the link connection frame 4 and the left and right ends of the seedling mounting table 9 in a C-shape to reduce the uneven load caused by the lateral feeding of the seedling mounting table 9. It has come to balance.

Reference numeral 19 denotes an electric cylinder. An upper end of the electric cylinder 19 is connected to an arm 4b projecting laterally from the link connecting frame 4, while a lower end is connected to a seedling supporting frame. 6 is connected to an arm portion 6a projecting forward. That is, the link connection frame 4
A so-called forced rolling control mechanism for forcibly rolling the planting work section 3 based on the expansion and contraction operation of the electric cylinder 19 is configured between the seedling table support frame 6 and the seedling mounting support frame 6.

[0010] Further, reference numeral 20 denotes a rolling detection device provided in the planting work section 3. The rolling detection apparatus 20 detects rolling (tilt to ground) of the planting work section 3, and detects the detected value. Is output to a cylinder control circuit (not shown). That is, the rolling detection device 20
The bracket 2 projecting forward is provided on a pair of left and right stays 21 projecting outward from both left and right ends of the planter case 7.
2 are fixed to each other, and a detection arm 24 that swings up and down on the front end of each of the left and right brackets 22 with a support shaft 23 as a fulcrum and has a detection float 24a at the front end.
And a potentiometer 25 for detecting the swing angle of the detection arm 24 based on the swing of a detection lever 25a interlocked with the detection arm 24. Then, during work traveling, the left and right detection floats 24a sliding on the rice field rise and fall reciprocally with the rolling of the planting work section 3, and the left and right potentiometers 25 detect and output signals. On the other hand, in the cylinder control circuit, the left and right detection values of the potentiometer 25 are compared to calculate the amount of rolling of the planting work section 3, and the planting work is performed in a direction opposite to the calculated rolling direction. By outputting an operation signal to the electric cylinder 19 for rolling the section 3, the planting work section 3 is always maintained in a posture parallel to the rice field regardless of the rolling of the traveling body 1. . Reference numeral 26 denotes a stand of the planting work section 3 which is detachably attached to the tip of the stay 21.

The pair of left and right detection floats 2
4a are respectively provided at positions near the front of the planting claws 8 located at the left and right outer ends in plan view. That is, a concave notch 11b is formed at the rear end of the bulging portion 11a of the left and right side floats 11, and the detection float 24a is arranged in a state in which the float front end is loosely fitted in the notch 11b. I'm sorry.

In the embodiment of the present invention configured as described above, the rolling detection device 20 detects the reciprocal vertical movement of the left and right detection float 24 a accompanying the rolling of the planting work unit 3 with the potentiometer 25. Thus, the rolling of the planting work section 3 is detected by the above method. The pair of left and right detection floats 24a is attached to the left and right outer ends of the plurality of planting claws 8 arranged in parallel with the planting work section 3. Since they are respectively disposed at positions near the front of the planting claws 8, the rolling detection is performed at the planting positions at the left and right outer ends which are most susceptible to rolling. Accordance connexion, can improve the accuracy of rolling detection, by extension may accurate planting work to improve forced rolling control accuracy.

In addition, since the detection float 24a is not exposed to the outside from the planting work section 3,
In the ridge running, it is possible to avoid inconveniences such as foreign substances being caught on the detection float 24a and contact of the detection float 24a with obstacles. As a result, highly accurate rolling detection can be performed. In addition, the detection float 24a can be prevented from being damaged.

Further, in this device , the side float 1
Since the detection float 24a is disposed behind the first bulging portion 11a, it is possible to perform high-accuracy rolling detection by contacting the rice field leveled by the bulging portion 11a. will be towards the front and one side is protected from the a connexion obstacles surrounded by, yet, a fear that inhibits the flow of muddy water as in the case arranged at a position deviated from the side float 11 also Therefore, it is possible to prevent inconvenience such as disturbing the posture of the planted seedling.

Further, in the above-described embodiment, the front end of the detection float 24a is provided with the notch 11 of the side float 11.
b, the detection float 24a is notched 11b even if there is some backlash in the detection arm 11.
The vertical movement is performed normally based on the guide action of the above. As a result, it is possible to prevent a decrease in the detection accuracy due to the occurrence of the backlash, and to guarantee a highly accurate rolling detection for a long period of time.

The present invention is, of course, not limited to the above-mentioned practical examples, and it goes without saying that the present invention can be carried out with any riding transplanter such as a field transplanter, a rush transplanter, etc., in addition to a rice transplanter. No.

[0015]

In summary, since the present invention is constructed as described above, it is possible to detect the rolling of the transplanting work part by a pair of left and right rolling detectors that come into contact with the field scene, The pair of rolling detection bodies are floated on the front extension line of the transplant nail located at the left and right outer ends of the plurality of transplant nails arranged side by side in the transplant working section.
Since it is arranged at the rear position of the bulging part, it is on the transplant position of the left and right outer ends that is most susceptible to rolling and
Rolling detection is performed at the leveled portion of the float bulging part, thus improving the accuracy of rolling detection compared to the conventional method where rolling detection is performed at a position shifted from the transplant position at the left and right outer ends To reduce the control error in forced rolling control and improve the accuracy of transplantation work.
It can be further improved.

[0016] Moreover, the rolling sensing body is rather name that will be exposed to the outer side of the porting portion, front and
Since one side is surrounded and protected from obstacles, etc. , even when traveling on a bank with many foreign substances and obstacles, the foreign substances are less likely to be caught and the accuracy is improved. Xu can be performed with high rolling detection Rica, and also avoids contact with the obstacle kills <br/> preventing also as rolling sensing element may be broken.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a front view of a main part of a planting work section.

FIG. 3 is a side view of a main part of a planting work section showing an arrangement of a detection float.

FIG. 4 is a front view of a main part of the same.

FIG. 5 is a plan view of a main part of the above.

FIG. 6 is a plan view showing an arrangement of front and rear wheels, a main float, a side float and the like.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 3 Planting work part 8 Planting claw 10 Main float 11 Side float 11b Notch part 19 Electric cylinder 20 Rolling detection device 24 Detection arm 24a Detection float 25 Potentiometer

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoji Ishida 667, Iya-cho, Oji-machi, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Mitsubishi Agricultural Machinery Co., Ltd. (56) References JP-A-1-300807 (JP, A) ( 58) Field surveyed (Int. Cl. ⁶ , DB name) A01C 11/02

Claims (1)

(57) [Scope of request for utility model registration] 1. A riding transplanter having a float that slides on a paddy surface and forcibly controlling rolling of a transplant working section in which a plurality of transplanting claws are juxtaposed in the left-right direction based on actuation of an actuator. to, when providing a pair of rolling detection member for detecting the rolling of the porting portion in contact with the field surface, the left and right pair of rolling sensing element, on the front extension of the implant pawl located on the left and right outer end
And the rearward direction of the bulging portion bulging in the left-right direction of the float.
Porting portion of the rolling sensing device in riding transplanter, wherein each that is disposed in the location.