JP3478951B2 - Rice transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a method of planting a mat-shaped seedling vertically fed downward by a seedling mounting base from a seedling outlet at a lower end of the seedling mounting base. The present invention relates to a rice transplanter that can be taken out with nails and planted in a field. 2. Description of the Related Art Conventionally, in a rice transplanter of this type, a long mat seedling wound in a roll shape is placed on a seedling mounting table, and the rolled seedling is fed out to a field. There is a known planting method. [0003] However, in the above-mentioned conventional structure, since the long mat seedling is wound in a roll shape, the seedling is liable to be inclined in the wound state. I have. Therefore, even when the seedlings are vertically fed on the seedling placing table, the seedlings may reach the seedling opening without the inclination of the seedlings being eliminated as described above, In the case of floating seedlings, the seedlings may not be held well due to removal of seedlings with the planting claws, and the amount of seedlings may vary or the posture of the seedlings when planted in the field is greatly inclined and turned sideways Or the seedlings may fall unduly from the planting nails, resulting in a lack of stock. [0004] The seedling wound in a roll state is
Since the weight and length of the mat seedlings are to be reduced, the seedlings are not grown on the floor soil, but are raised by rooting the seedlings on lightweight flooring material such as nonwoven fabric. If only the vertical transport of the seedlings is carried out, there is a risk that the amount of seedlings fed may not be sufficiently obtained due to slippage or the like, and the feed amount may vary. As a result, the planted seedlings are likely to lie down and may be in a floating seedling state or may be out of stock. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rice transplanter capable of satisfactorily planting a rock mat seedling wound in a roll shape. Means for Solving the Problems (Structure) The rice transplanter according to claim 1 of the present invention sends a long mat seedling wound in a roll shape to a seedling collecting place along a seedling mounting table. A feeding device and a raising means for raising the seedling in the middle of feeding the seedling are provided, and the raising means is interlocked with the feeding of the seedling by the seedling feeding device at a stroke end in the left and right reciprocating movement of the seedling mounting table. It is characterized by being constituted by a driven rotary brush. (Action) According to the configuration of the first aspect of the present invention, the raising means is rotated in conjunction with the seedling feeding by the seedling feeding device at the stroke end of the right and left reciprocating movement of the seedling placing table. It is composed of a brush of the formula, and the raising of the seedling during the seedling feeding is caused to rise up to the seedling mounting surface of the seedling mounting base by the raising action by the rotation of the brush driven in conjunction with the feeding of the seedling, The removal of the seedlings with the nails will be performed on the seedlings in the standing posture, and since the seedling posture at the time of removal has not been unduly inclined, the seedlings can be removed well and eventually to the field. Planting can be performed well.
If the rotating brush can be lifted in the direction opposite to the tilt direction of the seedling to the mat seedling in the middle of feeding the seedling, the seedling will be almost upright on the seedling mounting surface of the seedling mounting table It stands up. (Effects) Therefore, according to the configuration of the first aspect of the present invention, the seedlings can be taken out in a state where the seedling taking-out posture is good, and the seedlings are planted in the field, so that the planting in the field is carried out. As a result, the planted seedlings become unfavorably tilted, float, or become out of stock, the seedlings are damaged at the time of removing the seedlings, and the amount of seedlings collected varies. It has come to be able to suppress sticking. In addition, since the seedling can be caused to stand in an upright state by a simple configuration of a rotary brush, there is an advantage that a relatively inexpensive configuration can be made, and adjustment of the raising state can be performed by simple position adjustment with respect to the brush. . Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a rice transplanter. This rice transplanter is a riding type rice transplanter, which is equipped with an engine 4, a boarding operation unit 5, and the like on a body 3 supported by a pair of left and right front wheels 1, 1 and rear wheels 2, and a body 3. A seedling planting device 7 for 6-row planting is attached to the rear end portion of the plant through a four-link mechanism 6 so as to be movable up and down. As shown in FIG. 1 and FIG. 2, a seedling mounting apparatus 7 is a seedling mounting table 8 on which seedlings are mounted, and a seedling that cuts out seedlings from a seedling outlet at a lower end of the seedling mounting table 8 and plants the seedlings in a field. Nail 9
And a float 11 that supports the seedling planting device 7 in a state of floating on the mud surface of the field. In order to support a long mat seedling L wound in a roll form for each strip, the seedling mounting table 8 is swingable around a horizontal axis P1 at the tips of a pair of right and left columns 12,12. A support shaft 15 inserted along the left and right direction at the center of the winding of the long mat seedling L is supported by connecting a reinforcing arch member 14 to the free ends of the pair of left and right arms 13 and 13 supported by the arm. Locking grooves 16 at the free ends of the arms 13, 13;
16. A vertical feed device 17 as a seedling feed device for feeding the seedlings unwound from the rolled state of the long mat seedling L to the seedling take-out port is provided on the seedling placing table 8 for each row. That is, the vertical feeder 17
Is a belt-type transport device disposed on the seedling mounting table 8 with its feeding surface exposed above the seedling mounting surface of the seedling mounting table 8. The seedling mounting table 8 is configured to be driven by power only when it reaches the stroke end in the reciprocating movement of the seedling. As shown in FIGS. 3 and 4, the seedlings unwound from the long mat seedlings L supported by the arms 13, 13 and the support shaft 15 are positioned above the middle of the way where they are fed vertically to the seedling removal outlet position. That is, a brush 18 that is rotationally driven is provided above the feeding operation position of the vertical feeding device 17 in the seedling mounting table 8. This brush 18 is
A support shaft 18a is erected and supported between the pair of left and right second support columns 19, 19, and hairs are implanted radially from the support shaft 18a, and are rotatable around the horizontal shaft center P2. . Further, the transmission chain 22 is stretched over a sprocket 20 provided at one end of the support shaft 18a and a sprocket 21 interlocked with the longitudinal feeder 17 via a pair of gears G1 and G2 meshed with each other. The brush 18 is also driven to rotate together with the vertical feed device 7 at the stroke end of the left and right reciprocating movement of the seedling mounting table 8. With the above configuration, the long mat seedling L in a roll form can be rotated slightly when the seedlings are vertically fed by rotating the support shaft 15 around the axis P3, and the seedlings when the seedlings are extended are The vertical feed is performed while the rearwardly inclined state when the roll is wound remains, but the brush 18 is driven in conjunction with the vertical feed by the vertical feed device 17.
Each of the seedlings is raised in a posture substantially perpendicular to the seedling mounting surface of the seedling mounting base 8 by the raising action by the counterclockwise rotation in FIG. Then, when the planting claws 9 cut out the seedlings from the seedling taking-out port, the seedlings are planted in the field in a state where the seedlings are held in a good posture by the planting claws 9. Next, the shape of the float 11 will be briefly described. As shown in FIG. 5, each of the three floats 11 juxtaposed on the left and right has a wide front half 11F and a narrow rear half 11R. A muddy water guide groove 23 is formed on the bottom surface of the muddy water guide groove 23 which is recessed upward to guide the flow of muddy water. The upper surface of the left and right side portions 11a, 11a of the front half of the float 11 is provided on the upper surface of the both side portions 11a, 11a.
In order to prevent the muddy water flowing backward on the upper surface from being concentrated at the seedling placement position H at the rear side thereof, a channel separating guide projection 24 for dividing the flow path of the muddy water into right and left is provided. As shown in FIG. 6, as a float 11 different from the one provided with the above-mentioned flow path separating guide projection 24, the float 11 is used for stably planting seedlings without floor soil in a field. Left and right sides 11 of front half 11F
A groove-cutting plate 25 for forming a groove for deepening the planting position on the lower surface of each of a and 11a, and a pair of left and right for putting mud on the seedling after planting on both sides of the planting position H. Mud puller 26,
26 are provided. As a result, the planted seedlings are planted in the ditch, and immediately after planting, they are muddy at the base of the planted seedlings with the mud lashing tools 26, 26, so that the planted seedlings are in a stable state. Next, an example of the embodiment of the invention according to claim 3 will be described below. The same structures as those described in the first and second embodiments of the present invention are not described, and are denoted by the same reference numerals. As shown in FIG. 7, a roll-shaped long mat seedling L supported by a pair of left and right arms 13 and 13 and a support shaft 15
, And the roller 27 is in frictional contact with the upper surface of the outer periphery of the roll-shaped winding portion of the long mat seedling L. This roller 27
Is set to be substantially the same length as the left and right width of the long mat seedling L, so that the long mat seedling L is brought into frictional contact with the left and right full widths thereof, and the roller 27 The arm members 29 are pivotally supported at the free ends of the arm members 29, 29, which are swingably supported by support members 28, 28, which are erected on both right and left sides of the seedling mounting portion corresponding to each strip. And
A support shaft 27a integral with the roller 27 at the tip of the arm member 29;
The first endless rotating chain 35A is wound around a driven sprocket 30 provided integrally with the intermediate sprocket 32 integral with an intermediate shaft 31 for supporting the arm members 29, 29 of the support members 28, 28, respectively. A second intermediate sprocket 33 arranged in parallel with the intermediate shaft 31 so as to rotate integrally with the intermediate sprocket 32, and a second drive that rotates integrally with the driving sprocket 17a of the belt type vertical feeding device 17 as a seedling feeding device. The roller drive mechanism 36 is configured so that the second endless rotation chain 35B is wound around the sprocket 34 and the roller 27 is driven to rotate integrally with the vertical feed device 17. Further, the roller 27 is directed downward by a tension coil spring 37 extending over the free end side extending from the intermediate shaft 32 on the side opposite to the free end on the roller 27 side of the arm member 30 and the support member 28. To be elastically biased. That is, the roller 27, the support members 28, 28, the arm members 29, 2
9. A seedling feeding device 38 as a seedling feeding device that loosens the winding of the roll-shaped long mat seedling L and sends the seedlings downward along the seedling mounting surface by the tension coil spring 37 and the roller drive mechanism 36. . Roller 2
A large number of small projections are provided on the outer peripheral surface of 7, thereby increasing the contact friction between the roller 27 and the nonwoven fabric on the back surface side of the long mat seedling L, thereby improving the feeding performance of the seedling. With the above configuration, as shown in FIG. 7, at the time of seedling planting operation, at the stroke end of the left and right reciprocating movement of the seedling placing table 8, the vertical feed device 17 is linked with the vertical feed drive. 7, the roller 27 is rotated clockwise in FIG. 7 via a roller drive mechanism 36 of the seedling feeding device 38, and the roller 27 is rolled by the elastic biasing force of the tension coil spring 37.
The upper side is in contact with the outer peripheral surface of the seedling, so that the winding of the roll-shaped long mat seedling L is loosened and the seedling is sent downward along the seedling placing surface. It will be fed vertically along the seedling mounting surface,
The long mat seedling L is loosened satisfactorily in a state in which the winding of the long mat seedling L substantially interlocks with the vertical feed amount, and the seedling is properly fed.
As shown in FIG. 7, since the longitudinal feeding device 17 and the roller 27 are arranged so as to sandwich the roll-shaped portion of the long mat seedling L up and down in a side view, the roll-shaped seedling by the seedling feeding device 38 is used. It is possible to prevent the loosening of the seedlings from becoming too large and to perform a better vertical feeding of the seedlings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view showing a riding type rice transplanter. FIG. 2 is a side view showing a seedling planting device on which a long mat seedling of the invention according to claim 1 is mounted. FIG. FIG. 4 is a schematic side view showing a brush and a vertical feeding device. FIG. 5 is a plan view (a) showing a float and a vertical front view (b). FIG. 6 is a float according to another embodiment. Side view showing (a)
FIG. 7 is a side view showing a seedling planting device on which the long mat seedling of the invention according to claim 3 is placed [Explanation of Reference Numerals] 8 Seedling stand 17 Vertical feeder (seedling feeder) 18 Raising means 38 Seedling feeding device (Seedling feeding device) L Long mat seedling

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims] [Claim 1] A seedling feeding device for feeding a long mat seedling wound in a roll shape to a seedling collecting place along a seedling mounting stand, and a seedling is set up in the middle of feeding seedlings. And a raising brush which is driven in conjunction with the seedling feeding by the seedling feeding device at a stroke end in the reciprocating left and right movement of the seedling mounting table. Machine.