JPH108A - Transplant machine running device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile device for a transplanter capable of enhancing the balance of a machine body and regulating the height of the machine body from the field surface even when undulations are present in the forward direction by independently installing height sensors, etc., for measuring the heights from the field surface in respective front and rear wheels. SOLUTION: This mobile device for a transplanter is obtained by independently installing height sensors for measuring the heights from the field surface such as a ground contact sensor 23 in a front wheel part and a ground contact sensor 33 in a rear wheel part and further wheel lifting and lowering means for regulating the heights of the wheels 20 and 30 based on values obtained with the sensors 23 and 33 such as a front wheel lifting and lowering cylinder 22 and a rear wheel lifting and lowering cylinder 32 in the respective front and rear wheels 20 and 30 in the transplanter for raised seedlings such as vegetables.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for growing seedlings, such as vegetables, which is to be taken out of a seedling tray having a plurality of pot seedling accommodating units and to be planted in a field. It is characterized by a mechanism for adjusting the height.

[0002]

2. Description of the Related Art In a conventional walking type vegetable transplanter, the front wheel portion and the rear wheel portion are connected by a rod, so that the height of the machine body from the field surface is adjusted by the front wheel portion and the rear wheel portion. Subordinate.
Therefore, when there is undulation in the traveling direction, the height adjustment of the airframe from the field surface may not be able to follow.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to adjust the height of an airframe from a farm surface by using a front wheel portion and a rear wheel portion. An object of the present invention is to provide a traveling device of a transplanting machine that is capable of adjusting the height of a machine body from a field surface even when the machine body has undulations by performing the operation independently.

[0004]

In order to achieve the above-mentioned object, the present invention provides a transplanting machine traveling apparatus which includes a height sensor for measuring a height from a field surface and a value obtained by the sensor. And wheel elevating means for adjusting the height of the wheels based on the front wheel and the rear wheel are independently provided. In this way, the height adjustment of the aircraft from the field surface is performed independently for the front wheel portion and the rear wheel portion, so that the height adjustment of the aircraft body from the field surface can be performed even when there is undulation in the traveling direction. become.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. First, the outline of the walking vegetable transplanter will be described. 1 and 2 are a side view and a plan view of the walking vegetable transplanter as a whole. A transmission case (13) is provided at the rear of a front frame (10) on which an engine (12) is mounted at the front, and a driving rear wheel (30) is moved up and down via a transmission case (14). It is movably supported. A front wheel (20) is supported at the front of the front frame (10) via an axle frame (15) so as to be vertically movable.

[0006] Behind the transmission case (13), a chassis frame (40) is connected to the front frame (10), and the seedling supply device (K) is attached to the chassis frame (40).
Is installed. Seedling tray (43)
Stand frame (4) with seedling stand (42) for placing
1), and a lateral feed mechanism (44) for reciprocating it left and right
And a vertical feed mechanism (45) for vertically feeding the seedling tray (43) placed on the seedling mounting table (42) at the right and left transplant termination positions of the seedling stand frame (41) by one pitch. A seedling planting device (U) is provided at the rear of the mission case (13) via a planting transmission case (51). This seedling planting device (U) includes a seedling tray (43) placed on a seedling table (42) of a seedling supply device (K).
Take out the seedlings from the pots for the unit plant.
4) and an opening device (53) which receives the pot seedlings taken out by the seedling removal claws (54) and moves up and down in conjunction with the multi-cutter (52). Seedlings are planted at predetermined intervals on the field surface.

[0007] The outline of the walking-type vegetable transplanter is as described above. However, the present invention uses such a transplanter, even when there is undulation in the traveling direction, the height of the machine from the field surface. The traveling device is improved so that can be adjusted. FIG. 3 is a view in which only essential parts of the present invention are extracted from FIG. As described above, the rear wheel (30) is vertically movably supported via the transmission case (14) provided on the front frame (10). Here, a rear wheel lifting drive unit (31) and a rear wheel lifting cylinder (32) are connected to the transmission case (14). These are for raising and lowering the rear wheel (30) based on the undulation information on the field surface detected by the roller of the rear wheel portion ground sensor (33) sliding on the field surface.

The front wheel (20) is vertically movably supported via the axle frame (15) provided at the front of the front frame (10) as described above. The axle frame (15) of the front wheel portion is similar to the rear wheel portion.
, A front wheel lifting drive unit (21) and a front wheel lifting cylinder (22) are connected in series. These adjust the elevation of the front wheel (20) based on the up-and-down information on the field surface detected by the roller of the front wheel ground sensor (23) sliding on the field surface. The lifting drive units (21) and (31) and the lifting cylinders (22) and (32) include front and rear wheels (20) and (3).
0) In either case, the right and left wheels may be provided one by one, or the left and right wheels may be provided integrally. As described above, the height of the aircraft from the field surface is adjusted independently by the front wheel portion and the rear wheel portion. Therefore, even when the field surface has undulation in the traveling direction, the height of the aircraft from the field surface is adjusted. The height can be adjusted to follow the undulation.

The means for detecting the height of the aircraft from the field surface includes:
In addition to the ground sensors (23) and (33), a distance measuring sensor such as an optical sensor can be optionally used. It is also possible to intelligently and automatically control the height of the airframe from the field surface via the control unit (24) from the calculation using the value obtained by the distance measuring sensor and the traveling speed of the airframe. is there.

FIG. 4 is an explanatory view partially showing a front surface of the transplanter. As shown, the front wheel (20) swings substantially in a vertical plane with a rolling fulcrum (25) located at the center of the left and right wheels as a fulcrum. Thereby, even if there are irregularities on the field surface in the left-right direction, that is, in the width direction of the machine, it is possible to balance the machine following the unevenness. This swing control is also performed independently for the front wheel portion and the rear wheel portion, so that balance in the left-right direction can be easily achieved. Elevating drive unit (21) for raising and lowering front and rear wheels (20) (30)
(31) and the lifting / lowering cylinders (22) and (32) are arranged at positions supporting the front and rear wheels (20) and (30), so that the lifting / lowering control and the swing control can be performed independently. Thus, according to the present invention, the front and rear wheels (20) (3)
0) It is possible to cope with ups and downs in the traveling direction by independent lifting and lowering control, and it is also possible to cope with unevenness in the left and right directions by swing control to increase the balance of the body. The configuration of the present invention can be appropriately changed in design without departing from the gist of the present invention.

[0011]

The traveling device for a transplanter according to the present invention has the following effects due to the above-mentioned configuration. That is, since the height adjustment of the aircraft from the field surface is performed independently for the front wheel portion and the rear wheel portion, the height of the aircraft body from the field surface can be adjusted even when there is undulation in the traveling direction. At the same time, if the swing control in the vertical plane is also used, it is possible to improve the balance of the body by coping with the unevenness in the left-right direction.

[Brief description of the drawings]

FIG. 1 is a side view of the entire walking type vegetable transplanter.

FIG. 2 is a plan view of the entire walking type vegetable transplanter.

FIG. 3 is an explanatory view showing a main part of the present invention.

FIG. 4 is an explanatory front view showing a part of the walking vegetable transplanter.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 front frame 11 pressure reduction roller 12 engine 13 transmission case 14 transmission case 15 axle frame 20 front wheel 21 front wheel elevating drive unit 22 front wheel elevating cylinder 23 front wheel ground sensor 24 control unit 25 rolling fulcrum 30 rear wheel 31 rear wheel elevating drive unit 32 rear Wheel elevating cylinder 33 Rear wheel grounding sensor 40 Chassis frame 41 Seedling stand frame 42 Seedling table 43 Seedling tray 44 Lateral feed mechanism 45 Vertical feed mechanism 50 Gauge wheel 51 Planting transmission case 52 Multi cutter 53 Opener 54 Seedling removal claw 60 Manipulation Orientation handle 61 Planting crunch lever 62 Left and right side crunch lever 63 Main shift lever 64 Stock shift lever 65 Planting depth adjusting lever K Seedling supply device U Seedling planting device

Claims (1)

[Claims] 1. A transplanter for raising seedlings such as vegetables, comprising: a height sensor for measuring a height from a field surface; and a wheel elevating means for adjusting the height of a wheel based on a value obtained by the sensor. A traveling device for a transplanter that is independently disposed on each of the front and rear wheels, thereby enabling the height of the aircraft to be adjusted from the field surface even when the aircraft has undulations.