JP2009296970A - Rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable to switch between the extended seedling vessel-loading position and the standing storing position of reserve seedling-loading shelves by a simple operation in a construction in which a plurality of the reserve seedling-loading shelves are vertically installed to shelf support props of the rice transplanter. <P>SOLUTION: The reserve seedling-loading shelves of the rice transplanter are constructed so that the reserve seedling-loading shelves 12 turn between the seedling vessel-loading position where the reserve seedling-loading shelves 12 extend outward and the stored position where the shelves 12 are along the shelf support props 14 by installing an interlocking rod 25 and moving the interlocking rod 25 upward and downward and by standing the shelf support props 14 of the shelves 12 to a travelling machine body, wherein the interlocking rod 25 pivottingly supports the base of the shelf support props 14 to extend outward the reserve seedling-loading shelves 12, and simultaneously protrudes action pieces 24 toward the inside and vertically connects the action pieces 24 of the reserve seedling-loading shelves 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mounting structure for a spare seedling rack on which a seedling container storing spare seedlings is placed in a rice transplanter.

In the rice transplanter, a plurality of preliminary seedling placement shelves are provided in the vertical direction on the shelf columns that are erected on the left and right sides of the traveling machine body, and the seedlings in the seedling containers placed on the spare seedling placement shelf during the rice transplanting work are sequentially seedlings. The rice planting work can be continued while supplying the planting equipment. For example, Japanese Patent Application Laid-Open No. 2007-6790 and Japanese Patent Application Laid-Open No. 2006-333831 describe the structure of a rice transplanter provided with a shelf post provided with a plurality of spare seedling placement shelves in the vertical direction at the rear left and right of the traveling machine body. ing.
JP 2007-6790 A JP 2006-333831 A

  Since the preliminary seedling placement shelf described in the above-mentioned patent document is arranged so that the preliminary seedling tray is placed in a posture that protrudes substantially horizontally outward from the shelf column, the entire body is laterally moved during the rice transplanting operation. It becomes bulky. For this reason, when the rice transplanter work is finished, the spare seedling rack is stored along with the shelf column. It is troublesome.

  Therefore, in the present invention, with a configuration in which a plurality of preliminary seedling shelves are provided in the vertical direction on the shelf post of the rice transplanter, the standby seedling mounting shelf is extended sideways and switching between the use position and the storage position along with the shelf post is simple. The challenge is to be able to do it by operation.

The problems of the present invention are solved by the following technical means.
According to the first aspect of the present invention, the base portion is pivotally supported on the shelf column 14 and the action piece 24 is moved from the base to the inside so as to project the spare seedling rack 12 on the shelf column 14 erected on the traveling body 1. The seedling container mounting position is provided with an interlocking hook 25 protruding vertically and connecting the action pieces 24 of each of the preliminary seedling racks 12 vertically, and by moving the interlocking hooks 25 up and down. And a rice transplanter configured to rotate between the storage positions along the shelf column 14.

  In this configuration, when the interlocking rod 25 is moved up and down, the plurality of preliminary seedling placement shelves 12 pivotally supported on the shelf support 14 via the action piece 24 rotate between the seedling container placement position and the storage position.

  According to the first aspect of the present invention, the operation of moving the spare seedling rack 12 used for the rice transplanting operation to the seedling container mounting position or the storing position can be performed by a simple operation of moving the interlocking rod 25 up and down. Efficiency improves.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a riding type rice transplanter equipped with spare seedling racks 12 (T1 to T6). An engine E, which is a drive source, is mounted in the approximate center of the traveling machine body 1, and the rotation of the engine E is shown. The power is transmitted to the transmission in the transmission case 2, and the rotational power decelerated by the transmission is transmitted to the front wheels 4 and the rear wheels 5. A driver's seat 6 is installed above the engine E, a steering handle 7 for steering the left and right front wheels 4 and 4 is provided in front of the driver's seat 6, and an auxiliary handrail 23 is erected at the rear of the driver's seat 6. It has been. In the auxiliary handrail 23, a seedling container case 31 for storing an empty seedling container is suspended by a hook 32. The seedling container case 31 is a hollow square case with a hook 31 provided on the opening side. An empty seedling container is inserted and held in a seedling container case 31 suspended from the auxiliary handrail 23 from above. And if it mounts on the corner part from the side part of the auxiliary handrail 23 to the rear part and it fixes with the some hook 32, it can be utilized also as a work table | surface which puts the seedling container supplied to the seedling mounting tank 10a temporarily.

  Further, a seedling planting device 10 is attached to the rear portion of the traveling machine body 1 via an elevating link mechanism 9, and the seedling planting device 10 is moved up and down between the seedling planting device 10 and the traveling machine body 1. A hydraulic lifting cylinder (not shown) is equipped.

  The seedling planting device 10 is a seedling mounting tank 10a in which a mat-like seedling with soil is placed on a seedling mounting surface divided into a number of planting strips, and a seedling on which a seedling on the seedling mounting tank 10a is planted in a field. The planting device 10b includes a number of strips, and a float 10c that slides on a farm scene to level the ground.

  FIG. 4 shows an attached state of the center leveling float 40 that functions as a grounding sensor of the seedling planting device 10. The rear part of the central leveling float 40 is pivotally supported by a pin 38 on a support arm 37 extending rearward and downward from the planting depth adjusting shaft 36 of the planting transmission case 35, and the front part of the central leveling float 40 is supported to be movable up and down. ing. The planting depth adjusting shaft 36 is fixedly attached with a rotating arm 39 that is rotated by a planting adjusting motor 53, and the planting depth adjusting shaft 36 is rotated by the driving of the planting adjusting motor 53 through the rotating arm 39. When moved, the center leveling float 40 supported by the support arm 37 moves up and down.

  The front part of the center leveling float 40 is pivoted to the lower part of the planting transmission case 35 and the upper and lower links 43 and 44 pivotally attached to the rear link 46 pivotally supported by the pivotal support shaft 41 and the front part of the upper and lower links 43 and 44. It is connected via a link 47 to the rear end of a rotating body 48 that is rotatably supported at the tip of a parallel link mechanism 42 comprising a front link 45 that is worn. A potentiometer 50 attached to the upper extension 51 of the front link 45 is connected to the rotating body 48 by a connecting rod 49, and is moved up and down around the pin 38 during traveling of the center leveling float 40 during planting work. The potentiometer 50 detects the moving angle. Therefore, the central leveling float 40 functions as a sensor that detects a change in the field mud surface height with respect to the seedling planting device 10 due to the undulation of the field cultivator and the field mud surface during planting work.

The front end of the rotating body 48 is suspended by a tension spring 54 and a wire 55 so that the elevation sensing of the center leveling float 40 can be adjusted.
The rotating arm 39 and the lower part of the rear link 46 are connected by a hydraulic cylinder 52. When the hydraulic cylinder 52 is extended at the end of planting of the seedling, the parallel link mechanism 42 rotates upward about the pivot shaft 41. Then, the front part of the center leveling float 40 is raised.

  When the potentiometer 50 detects the rise of the front part of the central leveling float 40, the planting adjustment motor 53 is commanded to raise the rear part of the central leveling float 40, and correction control is performed so that the longitudinal direction of the central leveling float 40 is horizontal. However, if the potentiometer 50 still detects the rise of the front part of the central leveling float 40 even if correction control is performed, there is a possibility that obstacles such as sawdust are caught in the lower front part of the central leveling float 40. Therefore, it controls so that the traveling speed of the traveling machine body 1 is reduced and the operator is alerted.

  Further, when the traveling machine body 1 is turned in order to reverse the planting traveling direction, conventionally, the entire seedling planting device 10 is lifted and turned, but the front side of the center leveling float 40 is slightly raised. It is also possible to control so that the disturbance of the field caused by the front and rear wheels 4 and 5 is smoothed by the float 10c by turning in the same posture.

  The seedling planting device 10 is mounted so as to roll to the left and right with respect to the traveling machine body 1 and is controlled so that the seedling planting device 10 is horizontally horizontal at the time of planting work. Since swinging may become intense, when the planting speed is increased in the left-right tilt detection mechanism of the seedling planting device 10, control is performed to weaken the rolling drive and loosen the left-right swing.

  On both the left and right sides of the front side of the traveling machine body 1 are equipped with several stages of preliminary seedling placement shelves 12 (six-stage configuration of T1 to T6 in the embodiment) arranged at predetermined intervals. The spare seedling rack 12 is provided outside the shelf column 14 erected from the left and right sides of the vehicle body, is cantilevered with respect to the shelf column 14, and the base is pivotally supported by the shelf column 14 with a pin 26. . The shelf column 14 is configured such that the left and right columns 14, 14 are constituted by two front and rear pipe columns 14 a, 14 b, and a lower end thereof is integrally fixed and supported by a column support base 15 protruding upward from the traveling machine body 1. Is firmly connected and held by the connecting member 16, and the upper ends of the left and right shelf columns 14 and 14 are configured to be connected and held by the arch-shaped frame 17. Further, the support column 15 is connected to the side step 21 via the reinforcing bar 20 so that the strength of the shelf column 14 and the side step 21 is increased.

  Each seedling loading shelf 12 has a structure in which shelf plates 29 are fixed to left and right frames 28a and 28b that project laterally, and left and right frames 28a and 28b are pivotally supported by pins 26 on left and right pipe columns 14a and 14b, respectively. Thus, the horizontal bar 27 connecting the left and right frames 28a and 28b hits the pipe columns 14a and 14b, and the shelf board 29 is held at a substantially horizontal seedling container mounting position. An action piece 24 (S1 to S6 in the embodiment) protrudes inward from the frame 28a on one side, and the upper and lower action pieces 24 are connected by an interlocking rod 25. The lower end of the interlocking rod 25 is connected to the pedal 30, and when the pedal 30 is stepped on, the interlocking rod 25 is pulled down, and each seedling placing shelf 12 rises to the storage position.

Whole left side view of rice transplanter Whole front view of rice transplanter Partial front view of rice transplanter Partial enlarged side view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 12 Spare seedling mounting shelf 14 Shelf support | pillar 24 Action piece 25 Interlocking rod

Claims (1)

In order to project the spare seedling rack (12) outwardly on the shelf column (14) erected on the traveling body (1), the base is pivotally supported on the shelf column (14) and the action piece (24) is extended from the base. An interlocking rod (25) that protrudes inward and vertically connects the action pieces (24) of each preliminary seedling mounting shelf (12) is provided, and by moving the interlocking rod (25) up and down, the preliminary seedling mounting shelf (12) The rice transplanter is configured to rotate between a seedling container mounting position protruding from the side and a storage position along the shelf column (14).

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