JP2009296970A5 - - Google Patents

Description

Rice transplanter

  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 rice transplanters, a plurality of spare seedling placement shelves are provided in the vertical direction on shelf posts 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 shelves during 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 preliminary 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 is finished, the spare seedling racks are stored along with the shelf columns, but there are many spare seedling racks for storing the spare seedling racks separately. 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.
Projecting the invention according to claim 1, as well as pivotally supported base of a plurality of preliminary seedling shelf (12) to the travel shelf support erected on the body (1) (14), acting piece from the base (24) is allowed, the associated rod (25) connecting the operating member (24) of each preliminary seedling shelf (12) is provided, a plurality of preliminary seedling shelves Rukoto moved vertically the associated rod (25) (12) by rotating, a plurality of preliminary seedling shelf (12) is configured as the rice planting machine switches to storage position along a seedling container mounting position and the shelf support projecting laterally (14).

In the invention according to claim 2, the frame (28a, 28b) is pivotally supported on the shelf column (14) via the pin (26), and the shelf plate (29) is fixed to the frame (28a, 28b). The preliminary seedling rack (12) is constructed, the horizontal rod (27) provided on the frame (28a, 28b) is provided, the pedal (30) is connected to the interlocking rod (25), and the seedling container mounting position is When the reserve seedling shelf (12) is held in a state in which the horizontal rod (27) hits the shelf support (14), and the pedal (30) is depressed to move the interlocking rod (25) downward, each preliminary seedling placement The rice transplanter according to claim 1, wherein the shelf (12) rotates upward and switches to the storage position.
According to a third aspect of the present invention, the seedling planting device (10) is provided behind the traveling machine body (1), and the auxiliary handrail (23) is disposed behind the driver seat (6) provided in the traveling machine body (1). The rice transplanter according to claim 1, wherein a seedling container case (31) provided and holding an empty seedling container is suspended from an auxiliary handrail (23).
According to a fourth aspect of the present invention, in the seedling planting device (10), the center leveling float (40) is connected to the support arm (37) via the float pin (38), and the planting adjustment motor is provided. By driving (53), the support arm (37) is rotated via the rotation arm (39) and the planting depth adjusting shaft (36), and the center leveling float (40) is rotated by the rotation of the support arm (37). The potentiometer (50) is attached via the parallel link mechanism (42), and the vertical movement of the front part of the central leveling float (40), that is, the vertical swinging of the central leveling float (40) is performed by the potentiometer (50). The angle is detected, the rotation arm (39) and the parallel link mechanism (42) are connected by a hydraulic cylinder (52), and the parallel link mechanism (42) is rotated up and down by the hydraulic cylinder (52). It was planting machine according to claim 2, configured with the that.

According to the first aspect of the present invention , the plurality of preliminary seedling placement shelves (12) can be switched between the seedling container placement position and the storage position by a simple operation of moving the interlocking rod (25) up and down , and the work is easy. Efficiency improves.
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, a plurality of spare seedling racks can be obtained by a simple operation of stepping down the interlocking rod (25) by stepping on the pedal (30). (12) can be switched to the storage position.
According to the invention of claim 3, in addition to the effect of the invention of claim 1, an empty seedling container can be held in the seedling container case (31) suspended from the auxiliary handrail (23). .
According to the invention described in claim 4, in addition to the effect of the invention described in claim 2, when the planting is finished, the parallel link mechanism (42) is rotated upward by the hydraulic cylinder (52), and the central leveling float ( 40) can be raised.

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 on the rear of the driver's seat 6. It is. In the auxiliary handrail 23, a seedling container case 31 for storing an empty seedling container is suspended by a hook 32. This seedling container case 31 is a hollow square case, and is provided with a hook 32 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 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 equalized by the float 10c by turning the vehicle while keeping its 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

DESCRIPTION OF SYMBOLS 1 Traveling machine body 12 Spare seedling rack 14 Shelf column 24 Action piece 25 Interlocking rod

Claims (4)

The bases of the plurality of spare seedling placement shelves (12) are pivotally supported on the shelf columns (14) erected on the traveling machine body (1), and the action pieces (24) are protruded from the bases so that each of the spare seedling placement shelves (12 ) effector part (provided associated rod (25) connecting the 24) of, when a plurality of preliminary seedling shelves Rukoto moved vertically the associated rod (25) (12) is pivoted, a plurality of preliminary seedling shelf (12) is rice transplanters having a configuration that switches the storage position in which along a seedling container mounting position and the shelf support projecting laterally (14). A frame (28a, 28b) is pivotally supported on the shelf column (14) via a pin (26), and a shelf plate (29) is fixed to the frame (28a, 28b) to constitute a preliminary seedling rack (12). The frame (28a, 28b) is provided with a reed (27), the interlocking reed (25) is connected to the pedal (30), and at the seedling container mounting position, the reed (27) ) Is held, the preliminary seedling rack (12) is held, and when the pedal (30) is depressed to move the interlocking rod (25) downward, each preliminary seedling rack (12) rotates upward. The rice transplanter according to claim 1, wherein the rice transplanter is configured to be switched to a storage position. A seedling container that holds an empty seedling container by providing a seedling planting device (10) behind the traveling machine body (1), an auxiliary handrail (23) behind the driver's seat (6) included in the traveling machine body (1) The rice transplanter according to claim 1, wherein the case (31) is provided by being suspended from an auxiliary handrail (23). The seedling planting device (10) connects the central leveling float (40) to the support arm (37) via the float pin (38), and the rotation arm (39) is driven by the planting adjustment motor (53). ) And the planting depth adjustment shaft (36), the support arm (37) is rotated, and the central leveling float (40) is moved up and down by the rotation of the support arm (37), and the parallel link mechanism (42 ) To attach the potentiometer (50), and the potentiometer (50) detects the vertical movement of the front of the central leveling float (40), that is, the vertical swing angle of the central leveling float (40). 39) and the parallel link mechanism (42) are connected by a hydraulic cylinder (52), and the parallel link mechanism (42) is rotated up and down by the hydraulic cylinder (52). Planting machine.