JPH0647212Y2 - One-wheeled type rice transplanter with fertilizer application - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] According to the present invention, a pair of left and right seedling planting arms are dispersedly arranged on both sides of a traveling wheel, and a pair of left and right fertilizer groovers are provided on the left side. The present invention relates to a single-wheeled walk-type rice transplanter with a fertilizer application device, which is separately arranged in front of the seedling planting arm and in front of the right seedling planting arm.

[Conventional technology]

In the above-mentioned walk-behind rice transplanter, as shown in FIG. 5, conventionally, a fertilizer feeding device provided in a fertilizer tank (8a) arranged on the left side of the machine so as to supply fertilizer to the left grooving device (16a). (14a) and a fertilizer feeding device (14b) provided in a fertilizer tank (8b) arranged on the right side of the machine so as to supply fertilizer to the right grooving device (16b). By interlocking with (26) and interlockingly connecting the feeding device drive shaft (26) to one of the left and right seedling planting arms (5a) and (5b), the left and right seedling planting arms (5a) and (5b). Fertilizers should be placed near the planted seedlings by each one, and the drive and stop operations of the fertilizer feeding devices (14a) and (14b) should be done at once by driving and stopping the seedling planting arms (5a) and (5b). Fertilizer supply to the left and right groovers (16a) and (16b) so that they can be planted Arm (5
It was configured to be linked to the seedling movements of a) and (5b).

[Problems to be solved by the invention]

In the case of conventional machines, left and right fertilizer feeding devices (14a), (14b)
The left and right fertilizer tanks (8a) and (8b) and the fertilizer feeding devices (14a) and (14b) are attached to the upper body cover (11) for interlocking
Since it was positioned at a higher level, the center of gravity of the rice transplanter as a whole was increased due to the weight of the fertilizer feeding device and the fertilizer in the tank, and the stability of the aircraft was deteriorated, and it was difficult to control.

The purpose of the present invention is to enable fertilizer supply to be carried out in conjunction with the seedling planting movement, so that the fertilizer and the fertilizer feeding device can be arranged as low as possible, and the fertilizer can be seen from the rear of the machine. In addition to making it easier, reduce the adverse effect on the aircraft due to increase and decrease of fertilizer, and suppress the vibration from the seedling planting arm to the feeding device so that seedling planting and fertilizer feeding can be performed well. is there.

[Means for solving problems]

The feature of the present invention is that in the one-wheeled type rice transplanter with fertilizer application described above, a pair of left and right fertilizer tanks for separately supplying fertilizer to the pair of left and right groovers are distributed to both lateral sides of the machine upper cover. And, the drive shaft of the fertilizer feeding device provided in each fertilizer tank is arranged near the axle in the machine longitudinal direction with the drive shaft facing the machine longitudinal direction, and the drive of the fertilizer feeding device provided in the left fertilizer tank is performed. The drive unit of the shaft is linked to the drive member of the left seedling planting arm by a push-pull interlocking rod in the vertical direction of the machine body, and the drive unit of the drive shaft of the fertilizer feeding device provided in the fertilizer tank on the right side of the machine body is moved up and down. Direction push-pull interlocking rods are interlockingly connected to the driving member of the right seedling planting arm, and the left and right push-pull interlocking rods are connected to the left and right seedling planting arms in plan view of the machine. There to the arm and body longitudinal direction are arranged so as to line up in a straight line, its action and effects are as follows.

[Action]

The fertilizer feeding device on the left side is driven and driven by the driving movable member of the left seedling planting arm, and the fertilizer feeding device on the right side is driven and driven by the driving movable member of the right seedling planting arm. By, namely,
The left and right fertilizer feeding devices are separately driven from the left seedling planting arm side and the right seedling planting arm side to drive the left and right fertilizer feeding devices through the upper part of the upper cover of the machine. The fertilizer can be supplied to each of the left and right groovers in synchronization with the seedling planting movement of the seedling planting arm, even if the configuration is not provided.

By adopting the above-mentioned arrangement configuration for the left and right push-pull interlocking rods, the lower end side of the push-pull interlocking rod is hidden behind the seedling planting arm when judging the fertilization status from the rear of the machine during work. , The interlocking rod reciprocates in the field of view like the case where the interlocking rod is arranged side by side so that the interlocking rod can see through the grooving device and its vicinity without being disturbed.

Since the pair of left and right fertilizer tanks are arranged in the vicinity of the axle, even if the amount of fertilizer increases or decreases, the center of gravity of the machine does not fluctuate much.

The drive shaft of the fertilizer feeding device provided in each fertilizer tank is arranged in the front-back direction of the machine body, and the drive unit of each drive shaft and the drive member of each seedling planting arm are vertically pushed and pulled interlocking rods. Since, for example, the drive shaft of the fertilizer feeding device provided in each fertilizer tank is arranged in the lateral direction of the machine body, the drive unit of each drive shaft and the drive member of each seedling planting arm The length of the push-pull interlocking rod can be shortened as compared with the case of connecting with the push-pull interlocking rod in the vertical direction. As a result, the push-pull interlocking rod having a shorter length than that in which the drive shaft of the fertilizer feeding device is arranged in the left-right direction of the machine body is used, in other words,
It is possible to reduce the mass of the entire seedling planting arm drive structure including the push-pull interlocking rod. Therefore, it is possible to suppress as much as possible the degree of vibration generation in the seedling planting arm portion that draws an elliptical locus and moves unequally.

That is, the seedling planting arm draws an elliptical locus and circulates up and down, and when the seedling planting arm moves from the top dead center where the seedling is taken out of the seedling stand to the bottom dead center where the seedling is planted in the field. In addition, the backlash of the gear causes the seedling planting arm to rotate in advance due to its own weight, which causes a crisping phenomenon, and there are many factors that impede smooth rotational movement.

Then, in order to reduce the degree of vibration and rattling due to such non-uniform velocity motion, in general, the drive shaft of the seedling planting arm is provided with friction that suppresses the self-weight preceding rotation of the seedling planting arm due to the gear backlash. A brake or a balance weight is provided on the seedling planting arm to cancel the vertical vibration due to the non-uniform motion. However, when the push-pull interlocking rod becomes long, the dynamic inertia of the non-uniform velocity motion is increased due to the increase in the mass, and the means for canceling the vibration and the rattling phenomenon must be increased in size. In the present invention, the length of the push-pull interlocking rod can be shortened while avoiding upsizing of such canceling means, and the vibration and rattling due to the unequal speed movement of the seedling planting arm can be suppressed.

[Effect of device]

The left and right fertilizer feeding devices are separately linked to the left and right seedling planting arm sides, so that fertilization on both the left and right sides can be performed in conjunction with the seedling planting movement. The fertilizer tanks on the left and right, the fertilizer feeding device, and the fertilizer in the tank can be placed at the same level as or near the upper cover of the machine or at a lower level than before, without the need for interlocking the fertilizer feeding device. The center of gravity of the whole machine was low for the fertilizer applicator, so the stability was good and it was easy to operate.

Moreover, since the push-pull interlocking rod does not easily obstruct the line of sight of the grooving device and its vicinity, it becomes easier to see the fertilization status, and it becomes possible to work while accurately and easily grasping the fertilization status. .

Furthermore, by setting the placement of the fertilizer tank near the axle, the position of the center of gravity of the airframe does not change regardless of the increase or decrease of fertilizer, and the steering wheel operation is not adversely affected.

Since the drive shaft of the fertilizer feeding device is set in the machine front-rear direction, compared to the case where the drive shaft of the fertilizer feeding device is set in the machine left-right direction, vibration or vibration in the seedling planting arm that moves at a non-constant speed It is possible to suppress the degree of cricket generation, and to perform good planting of seedlings and feeding of fertilizer.

〔Example〕

As shown in FIGS. 3 and 4, one traveling wheel (1) is mounted so as to be able to move up and down through a wheel transmission case (2) that is vertically swingable, and an engine (3) and an engine ( 3) and a mission case (9) and the like, an upper body cover (11) for covering the upper side, and a rear portion of the self-propelled body equipped with a steering handle (4) and the like, both of the rear portion of the traveling wheel (1). Two seedling planting arms (5a) distributed laterally,
(5b) and a seedling stand (6) are attached, and a pair of left and right ground floats (7) are attached to the lower part of the self-propelled aircraft.
Each of (7) is attached so as to swing around the horizontal axis on the rear end side. And a pair of left and right fertilizer tanks (8a),
A fertilizer application having (8b) is attached to the self-propelled machine body, so that a one-wheeled walk-type rice transplanter is configured so that fertilization work can be performed simultaneously with two-row seedling planting work.

The fertilizer application device is constructed as shown in FIGS. 1 and 2.

That is, the left and right fertilizer tanks (8a), (8b) are distributed to both lateral sides of the machine body upper cover (11), and the fertilizer feeding device (8a) provided in each fertilizer tank (8a), (8b). 14a) and (14b) drive shafts (19a) and (19b) are oriented in the longitudinal direction of the machine body, and are arranged near the axle (1a) in the longitudinal direction of the machine body through the support columns (12) and mounting stays (13). Left aircraft frame (10a) or right aircraft frame (10a
The fertilizer feeding device (14a) provided on the left-side fertilizer tank (8a) and the fertilizer feeding device (14b) provided on the right-side fertilizer tank (8b) are separately supplied with fertilizers. A pair of left and right groovers (16a) and (16b) connected via a hose (15) are used to connect the left seedling planting arm (5
a) and the front of the right seedling planting arm (5b) in a distributed state, the left side of the machine frame (10a) or the right side of the body frame (10a) through the groove plate (17) and the mounting stay (13). It is attached to the machine frame (10b). Then, a swinging arm type feeding device drive portion (20a) provided at the rear end of the feeding roll drive shaft (19a) of the left fertilizer feeding device (14a) is provided with a push / pull interlocking rod (21a) in the vertical direction of the machine body. ), The left seedling planting arm (5a)
Is connected to a swinging member (22a) that is swingably mounted on the machine frame (10a), and the left fertilizer feeding device (14a) is transmitted from the left seedling planting arm (5a) side. Driven by the motive power, the powdered and granular fertilizer is intermittently fed from the fertilizer tank (8a) by a set amount and dropped and supplied to the grooving device (16a) in synchronization with the seedling planting movement. Then, a swinging arm type feeding device driving part (20b) provided at the rear end of the feeding roll driving shaft (19b) of the fertilizer feeding device (14b) on the right side is pushed and pulled in the upward direction of the machine body (21b). The right seedling planting arm (5
b) is interlockingly connected to a swinging member (22b) mounted on the machine frame (10b) so as to be swingable, and the fertilizer feeding device (14b) on the right side is on the side of the right seedling planting arm (5b). Driven by the power transmitted from the plant, the powdered and granular fertilizer is intermittently fed from the fertilizer tank (8b) by a set amount and dropped and supplied to the grooving device (16b) in conjunction with the seedling planting movement. Then, the left and right groovers (16a) and (16b) respectively groov near the seedling planting point by the left or right seedling planting arm (5) and the feeding device (14a) or (14b).
The fertilizer from is dropped and supplied to the forming groove.

The left and right push / pull rods (21a) and (22b) are respectively the seedling planting arms of the swinging member (22a) or (22b), as illustrated by the left push / pull rod (21a) in FIG. (5a) or (5b) is connected to the pivotally attached shaft portion (23) via a connecting arm (24), and the push-pull rod (21a) or (21b) is used to see the seedling planting arm (in plan view). 5a) or (5b) in a straight line in the longitudinal direction of the machine, and the lower end of the push / pull rod (21a) or (21b) when looking through the grooving device (16a) or (16b) from the rear of the machine, the seedling planting arm ( 5a) or (5b) so that they are hidden behind the seedling planting arm (5a) with respect to the connecting arm (24).
Or it is located on the side where (5b) is located.

The lids (25) of the left and right fertilizer tanks (8a) and (8b) respectively
As shown in FIG. 1, while being attached to the lateral side of the machine body so as to be rocked to be opened, in the open state, the whole body is lowered from above the tank main body, and the fertilizer bag is attached to the tank main body. The lid (25) is configured so that its load is not applied even when it is placed.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a single-wheeled type rice transplanter with a fertilizer application device according to the present invention. FIG. 1 is a rear view of the fertilizer application device, FIG. 2 is a side view of the fertilizer application device, and FIG. Side view of
FIG. 4 is a partially cutaway plan view of the walk-behind rice transplanter. Fifth
The figure is a rear view of a conventional fertilizer applicator. (1) …… Wheels for traveling, (1a) …… Axle, (5a), (5
b) …… Seedling planting arm, (8a), (8b) …… Fertilizer tank, (11) …… Airframe upper cover, (14a), (14b) ……
Fertilizer feeding device, (16a), (16b) …… Groover, (19
a), (19b) ... drive shaft, (20a), (20b) ... drive unit, (21a), (21b) ... push-pull interlocking rod, (22
a), (22b) ... Drive members.

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right seedling planting arms (5a), (5b)
Are distributed on both lateral sides of the traveling wheel (1), and a pair of left and right fertilizer groovers (16a) and (16b) are provided in front of the seedling planting arm (5a) on the left side and on the right side of the seedling. A unicycle walking type rice transplanter with a fertilizer apportioning device arranged in front of a planting arm (5b), wherein a pair of left and right groovers (16
A pair of left and right fertilizer tanks (8a) and (8b) for separately supplying fertilizer to a) and (16b) are distributed to both lateral sides of the fuselage upper cover (11), and the fertilizer tanks (8a) and (8b) ) Equipped with fertilizer feeding device (14a), (14b) drive shaft (19
a) and (19b) are arranged near the axle (1a) in the front-rear direction of the machine with the front-rear direction of the machine and the drive shaft of the fertilizer feeding device (14a) provided in the left-side fertilizer tank (8a). The drive section (20a) of (19a) is pushed and pulled by a rod (21a) in the up and down direction of the machine body, and the left side seedling planting arm (5
The drive part (20b) of the drive shaft (19b) of the fertilizer feeding device (14b) provided in the fertilizer tank (8b) on the right side is pushed in the up and down direction of the machine by being linked to the drive member (22a) of a). With the pull interlocking rod (21b), the seedling planting arm (5
b) interlockingly connected to the driving member (22b), and the left and right push-pull interlocking rods (21a) and (21b) respectively on the left or right side of the seedling planting arm (5a or 5b) and the front and rear of the machine. A unicycle walk type rice transplanter with fertilizer application that is arranged in a straight line in the direction.