JP3415738B2 - Support structure of seedling table in transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a seedling mounting table in a transplanting machine in which an apron is provided at the lower end of a reciprocating and laterally moving seedling mounting table. is there. 2. Description of the Related Art Generally, in a transplanting machine such as a riding rice transplanter, an apron is disposed at the lower end of a seedling table supported by a slide piece and reciprocating and moved laterally, and is placed on the apron from the seedling table. It is known that a planter that operates to plant the delivered seedlings scrapes the seedlings and plants them in a field. Conventionally, such a seedling mounting table is arranged so as to reciprocate and laterally move on a slide piece while maintaining a gap of about 2 mm between the seedling mounting table and the apron. However, when the reciprocating and laterally moving seedling mounting table moves to the end of the apron, the moving side of the seedling mounting table protrudes laterally beyond the slide piece. The base is bent, and the moving side of the seedling mounting table comes into contact with the apron, and the laterally moving seedling mounting table and the apron may be worn due to frictional resistance. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has an apron disposed on the lower end side of a seedling mounting table while moving back and forth. Even when the seedling platform reaches the end of the apron, the seedling platform does not flex and does not come into contact with the apron, so that the seedling platform can be smoothly reciprocated and moved laterally. It seeks to provide structure. [0005] In order to solve the above problems, the technical means taken by the present invention is a slide piece.
In a transplanter in which an apron is arranged at a lower end side of a seedling table that reciprocates and moves back and forth with a predetermined gap, a rotating roller that protrudes from the left and right ends of the apron on the moving path of the seedling table. To support the moving side of the seedling platform that has moved laterally to the end of the apron,
In this case, the laterally moving seedling platform is prevented from coming into contact with the apron. Next, an embodiment of the present invention will be described in detail with reference to an embodiment shown in the drawings. First, in FIG. 1, reference numeral 1 denotes a traveling body of a riding rice transplanter exemplified as a transplanter, and the traveling body 1 includes a front wheel 2 and a rear wheel 3.
The engine unit 5 is mounted on a body frame 4 provided with a driver, and a driver's seat 6 is disposed behind the engine unit 5. Reference numeral 7 denotes a vertically movable planting portion mounted on the rear of the traveling machine body 1 via a link mechanism 8, and the front and rear low planting stand 9 provided on the planting portion 7.
Are reciprocally moved laterally left and right by the lateral feed mechanism 10. A seedling vertical feeding device 11 for vertically feeding the placed seedlings is provided on the back side of the seedling mounting table 9, and an apron 12 for receiving the vertically fed seedlings is provided at the lower end of the seedling mounting table 9. It is arranged. Reference numeral 13 denotes a drive case connected to the PTO shaft. Reference numeral 14 denotes a planter case. At the rear end of the planter case 14, a planter 15 for planting operation is mounted. Is provided. 17 is a float 16
A planting depth adjusting lever 18 for adjusting the position of the apron 12 is a planting depth adjusting lever for adjusting the position of the apron 12. Then, with the traveling of the airframe, the planter 4 for planting and operating the mat seedlings sent from the seedling table 9 which reciprocates and moves laterally onto the apron 12 scrapes each unit planted plant and plants it on the field. I have. Numeral 19 is a fertilizing nozzle for injecting a paste fertilizer or the like. The seedling mounting table 9 is supported at its upper end by a support stay 20, and is slidably supported at its lower end by a slide piece 21. The seedling mounting table 9 is about 2 mm between the seedling mounting table 9 and the upper surface of the apron 12. It is disposed so as to move laterally left and right while maintaining a predetermined gap a. And, as a supporting member for supporting the moving side of the seedling mounting table 9 on the moving path of the seedling mounting table 9
By providing the rollers , even when the seedling mounting table 9 reaches the end of the apron 12, the seedling mounting table 9 bends and the apron 12
To prevent contact. That is, in FIGS. 2 to 5, reference numeral 22 denotes a seedling mounting plate serving as a bottom surface of the seedling mounting table 9, and the slide portion 22a of the seedling mounting plate 22 is
1 is slidably supported. On the bottom surface of the apron 12, a plate 23 and a U-shaped bracket 24 are fixed together by bolts 25 on both left and right ends thereof. Then, from the bracket 24, the seedling mounting plate 2
The roller shaft 26 projecting in parallel to the roller 2
Is rotatably supported via a stopper 28, and a support member 29 for supporting the moving side of the seedling mounting table 9 by the rotating roller 27 protruding from the apron 12 to the moving path of the seedling mounting table 9 is configured. Have been. For this reason, the seedling table 9 which moves laterally is
2, the rotating rollers 27 protruding from the apron 12 side remain between the seedling mounting table 9 and the apron 12.
As a result, a predetermined gap is maintained, so that the seedling mounting table 9 does not bend and come into contact with the apron 12. Apron 12
Even when the position is adjusted from the minimum scraping position shown in FIG. 2 to the maximum scraping position shown in FIG. 3 by the seedling scraping adjusting lever 18, the rotating roller 27 rotates while supporting the moving side of the seedling mounting table 9. The diameter of the rotating roller 27 and the mounting position of the roller shaft 26 are set in the table. Note that the support member may be provided on the seedling mounting table side. A rib 30 for improving the sliding of the mat seedling P which is fed longitudinally is provided on the seedling mounting plate 22 serving as the bottom surface of the seedling mounting table 9. The protruding height from the plate 22 is adjustable. 6 is a plan view of the seedling mounting plate 22, FIG.
Is a side view in which six ribs 30 protrude upward from the seedling mounting plate 22 through a through groove 22b provided in the seedling mounting plate 22. As shown in FIGS. 8 and 9, the rib 30 is integrally formed on the upper surface of a bottom plate 31 provided on the lower surface side of the seedling mounting plate 22.
Reference numeral 32 denotes a mounting seat formed by bending the left and right central portions of the bottom plate 31 downward, and a mounting hole provided in the mounting seat 32 is attached to a screw rod 33 vertically provided on the lower surface of the seedling mounting plate 22. A nut 34 is screwed into the threaded rod 33 from below. A compression spring 35 is interposed between the seedling mounting plate 22 and the mounting seat 32 inside the mounting seat 32. If the nut 34 is tightened against the bias of the compression spring 35, , Bottom plate 31 is seedling mounting plate 2
2, the protrusion height of the rib 30 increases, and if the nut 34 is loosened, the compression spring 35 biases the bottom plate 31 away from the seedling mounting plate plate 22 to protrude the rib 30. Becomes smaller. For this reason, conventionally, depending on the bottom shape of the seedling box, the roots of the mat seedlings may be stuck between the ribs and the slip of the seedlings may be inferior. Can be changed, so that the roots of the mat seedlings are adjusted so as not to be stuck between the ribs, so that the seedlings can be slid well. FIGS. 10 and 11 show the ribs which can be moved to the left and right. That is, seedling mounting plate 2
2, two ribs 36 protrude upward through the through-grooves 22a provided in the seedling mounting plate 22, and the ribs 36 are integrally formed on the upper surface of the bottom plate 37. The bottom plate 37 is divided into two parts from the center to the left and right. At opposite ends, mounting seats 38, 38 bent downward are formed.
A connection bolt 39 is inserted through a mounting hole provided in the hole 38 and is tightened and connected by a nut 40 from the side. A compression spring 41 wound around a connecting bolt 39 is interposed between the mounting seats 38, 38. When the nut 40 is tightened against the bias of the compression spring 41, the bottom plate is 37, 37 approach each other and rib 3
When the nut 6 is moved toward the center of the seedling mounting plate 22 and the nut 40 is loosened,
The bottom plates 37, 37 are separated from each other to move the ribs 36 sideways. For this reason, the position of the rib 36 can be moved and adjusted so that the root of the mat seedling does not get stuck between the ribs, and the slip of the seedling can be improved. Reference numeral 42 denotes a stopper for connecting the seedling mounting plate 22 and the bottom plate 37. Since the present invention is constructed as described above, in carrying out the planting operation, the seedling mounting table 9 reciprocates laterally to the left and right with the running of the body, and is mounted on the seedling mounting table 9. The seedling vertical feeding device 11 sends out the mat seedlings onto the apron 12. When the seedling table 9 which moves reciprocally and laterally with a predetermined gap between it and the apron 12 reaches the end of the apron 12, the rotating roller 27 protruding from the apron 12 side rotates the seedling table 9. Since the moving side is supported from below, the seedling mounting table 9 smoothly moves sideways while maintaining a predetermined gap with the apron 12. For this reason, the seedling table does not bend due to the weight of the seedlings, and the moving side of the seedling table does not come into contact with the apron.Therefore, it is necessary to prevent the seedling table and the apron from being worn due to frictional resistance. Can be prevented. In addition, since the rotating roller 27 rotates with the movement of the seedling table 9 that has reached the end of the apron 12, the reciprocating lateral movement of the seedling table 9 can be further smoothed. In summary, the present invention provides a slide pea
On the lower end side of the seedling table, which is supported by
In the transplanter where the apron is arranged with a predetermined gap,
In the seedling placing stand movement path, by providing a rotating roller that issued collision <br/> from the left and right ends of the apron, the lateral movement to the ends of the apron
Of the apron by supporting the moving side of the
Since the seedling platform that moved laterally to the end was prevented from coming into contact with the apron, the seedling platform that moved back and forth reciprocally while the apron was placed at the lower end of the seedling platform was at the end of the apron. Even when the seedling platform is reached, the rotating rollers projecting from the left and right ends of the apron provided on the moving path of the seedling platform receive the moving side of the seedling platform, so that the seedling platform does not flex and contact the apron, The seedling table can be moved back and forth smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a riding rice transplanter. FIG. 2 is a side view of a main part. FIG. 3 is a side view showing a state in which the seedling scraping amount is maximized. FIG. 4 is a plan view of a main part. FIG. 5 is an enlarged view in the direction of arrow A in FIG. 4; FIG. 6 is a plan view of a seedling mounting plate. FIG. 7 is a side view of the same. FIG. 8 is a cross-sectional view showing a mounting structure of a rib. FIG. 9 is a plan view of the same. FIG. 10 is a cross-sectional view of a rib showing another mounting structure. FIG. 11 is a plan view of the same. [Description of Signs] 9 Seedling stand 12 Apron 27 Rotary roller

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-75518 (JP, A) JP-A-57-11114 (JP, A) JP-A-6-38421 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claim 1] In the transplanting machine in which an apron is provided at a lower end side of a seedling support table which is supported by a slide piece and reciprocates and moves laterally, with a predetermined gap therebetween. In the movement path of the table, rotating rollers protruding from both left and right ends of the apron are provided,
Support the moving side of the seedling platform that has moved laterally to the end of the apron .
A seedling support structure in a transplanter, wherein the seedling mounting that laterally moves to the end of the apron is prevented from contacting the apron.