JPH0617420U - Spare seedling stand device for riding type rice transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the labor required for seedling splicing work such as mounting the seedling mat on the rotating table and supplying the seedling mat to the seedling mounting table in the spare seedling table arranged on the traveling body. [Structure] In a traveling machine body of a riding-type rice transplanter, a rotation base 30 standing upright to the side of a control seat is provided with a front and rear long rotation base 30, and the rotation support 29 is rotated forward and backward by a drive motor 37. To move. The rotary table 30 is provided with a belt type conveyor 31 arranged in the longitudinal direction thereof so that the belt conveyor 31 can be rotated in the forward and reverse directions. When the seedling mat is mounted on the rotating platform 30 from the outside of the traveling machine body, the rotating platform 30 is arranged on the lateral side of the traveling machine body so as to be longitudinal in the front-rear direction. It is rotated so as to be located between the rear part of the control seat and the seedling mounting table when viewed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a preliminary seedling stand device in a riding-type rice transplanter in which a worker boards a traveling machine to plant seedlings in a field.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, when planting seedlings in a field with a riding type rice transplanter, a seedling planting device is attached to the rear part of the traveling machine so that it can be moved up and down, and the lower part of the seedling planting device is planted at appropriate intervals to the left and right in the traveling direction. A planting mechanism is provided, and the planting mechanism that rotates vertically as the rice transplanter progresses is configured to plant the seedling mat on the seedling table of the seedling planter into the field scene while dividing the seedling mat into appropriate number of plants. The provision of a spare seedling stand on which a large number of spare seedling mats are placed is disclosed in, for example, Japanese Utility Model Publication No. 61-21937, which is a prior art.

In this prior art, a spare seedling stand is provided on a side portion of the traveling machine body, a roller conveyor for transferring the seedling mat backward is provided at a lower portion of each spare seedling stand, and the running machine body is also provided. A turntable that rotates horizontally with respect to the upright pillars is provided at the rear part of the side of the seedling, and the seedling mat transferred from the roller conveyor to the turntable is placed on the seedling by rotating the turntable. It is configured so as to be close to the upper end of the table.

According to this configuration, since the seedling mats can be placed in multiple stages on the spare seedling stand, it is easy to balance the weight in the front and rear directions of the rice transplanter, but the seedling mats can be moved to the lower roller conveyor, Since moving the roller conveyor to the turntable requires human power, there is a problem in that if the moving work is performed frequently, it becomes a heavy labor. Therefore, the present invention aims to reduce the labor in this kind of seedling splicing work and to efficiently carry out seedling planting work.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention connects a seedling planting device to a rear part of a traveling machine equipped with a control seat so as to be able to move up and down, and the upper end of the seedling planting device is located toward the rear part of the traveling machine body. In the riding-type rice transplanter in which the seedling mounting bases are arranged in a slanted manner as described above, the running body is provided with a front and rear longitudinal seedling support stand on the pivoting pillars standing upright to the side of the control seat. By rotating the movable column forward and backward by the drive means, the spare seedling stand is configured to be located between the rear part of the control seat and the seedling stand in plan view at least during seedling joining work. The table is provided with a conveyor that is selectively driven in the longitudinal direction.

[0006]

[Operation and effect of the device]

 With this configuration, the worker puts the seedling mat on the conveyor and transfers the seedling mat toward the seedling platform on the rear side of the traveling machine, or on the contrary moves the seedling mat to the front side of the traveling machine. The movement of the seedling mat, such as balancing the seedlings, becomes extremely easy, and the labor for pretreatment and posttreatment for seedling splicing work can be greatly reduced. Therefore, according to the present invention, there is an effect that the seedling splicing work can be made efficient.

[0007]

【Example】

 An example applied to a 6-row Ueda transplanter will be described below. In the figure, 1 indicates a traveling machine body, and the traveling machine body 1 is attached to a vehicle body frame 2 and front wheels 3, 3 attached to the front side thereof and a rear side thereof. It is composed of rear wheels 5 and 5 mounted on the body frame 2, and a control seat 6 and a steering handle 7 are provided on the upper surface of the body frame 2, and the driving force of the engine 8 on the upper front surface of the body frame 2 is changed in the transmission case 9. This is a configuration in which the rear wheel 5 is driven via a mechanism.

A seedling planting device 10 mounted on the rear part of the traveling machine body 1 through a parallel link mechanism 11 so as to be vertically movable includes a central transmission case 12 and a transmission shaft on the left and right sides of the central transmission case 12. It consists of planted transmission cases 14, 14 that are attached at appropriate intervals via inserted connecting pipes, and a laterally reciprocally movable seedling table 15 that is inclined so that the upper end approaches the rear part of the traveling machine body. On the left and right sides of the rear part of the both-transplantation transmission cases 14, a planting mechanism 16 for raising and lowering planting claws is provided between the seedling take-out port at the lower end of the seedling platform 15 and the field scene 17.

Further, the parallel link mechanism 11 is largely moved up and down by a hydraulic cylinder 13 attached to the traveling machine body 1 side. The parallel link mechanism 11 is composed of a top link 18 and a pair of left and right lower links 19, and the base end of the top link 18 is pin-pivotally attached to a portal frame standing on the vehicle body frame 2. , The gate-shaped struts to which the tips of the lower links 19 and 19 are attached are rotatably connected to the rolling shaft of the hitch part of the seedling planting device 10, so that the seedling planting device 10 has the central transmission case 12 and the planted transmission. The floats 20, 20, 20 arranged on the undersides of the cases 14, 14 are configured to be able to rotate up and down (rolling) to the left and right of the traveling machine body 1 about the rolling axis so that the floats 20, 20, 20 slide in a field scene. is there.

The rails at the lower end of the rear surface of the seedling mounting table 15 are slidably fitted to the guide portions projecting from the left and right transmission cases 14, 14 while the guide rails on the upper surface of the rear surface of the seedling mounting base 15 are slidably fitted. Numeral 24 is slidably fitted to the roller portions at the upper ends of the pair of left and right struts 25, 25 protruding from the left and right both-planted transmission cases 14, 14. A seedling mat 26, which is obtained by germinating and growing paddy sown on the soil in a seedling raising box (not shown), is taken out from the seedling raising box, placed on the flat plate-like seedling taking plate 27 shown in FIG. 3, and supplied. . As shown in FIGS. 1 and 2, the seedling mat 26 with the seedling take-up plate 27 brought to the edge of the running body 1 has a longitudinal direction perpendicular to the traveling direction of the running body 1, as shown in FIGS. It is mounted on the front and rear longitudinal seedling stand 28 arranged on the left side or the right side.

The preliminary seedling stand 28 includes a turntable 30 attached to a turnable support column 29 that is horizontally turnable, and a belt-type conveyor 31 provided on the turntable 30. The front part is provided with a support base composed of a pair of front and rear columns 32, 32 and a support plate 33 for supporting the lower surface of the preliminary seedling stand 28 in the front and rear longitudinal state near the front end. An upper and lower midway portion of a guide cylinder 33 fitted to a rotating support column 31 that supports a portion near the rear end of the rotating base 30 is rotatably supported on a side surface of the traveling machine body 1 via a bracket 34. . Inside the gearbox 35 at the lower end of the rotating support column 31, a forward / reverse rotatable drive motor 37 as an actuator and a transmission gear mechanism 36 are built in, and the support column 31 is moved 90 degrees in the arrow A direction and the arrow B direction in FIG. It is configured to rotate horizontally. As shown in FIG. 5, at the lower end of the pivot column 31, a protrusion 39 is fixed in the gear box 35 so as to rotate integrally. The rotation support column 31 rotates forward and backward by an angle 90 between a first limit switch 38 and a second limit switch (not shown) which are arranged at an appropriate angle.

As shown in FIG. 4, the conveyor 31 is driven by a forward / reverse rotatable drive motor 40 serving as a drive unit, and a first sensor 41 provided at the front end of the turntable 30 and a rear sensor provided at the rear end thereof. When each detection signal from the second sensor 42 is input to the controller 43 equipped with a microcomputer or the like, the following control is executed. That is, the first sensor 41 and the second sensor 42 respectively output an ON detection signal when the seedling mat 26 placed on the seedling picking plate 27 is present on the belt type conveyor 31 and an OFF detection signal when not present.

When replenishing the seedling mat 26 (with the seedling lapping plate 27) to the spare seedling base 28: the first sensor 41 is ON (the seedling mat 26 is present) and the second sensor 42 is OFF (the seedling mat 26 is not present) ), The drive motor 40 operates the drive motor 40 for an appropriate time, that is, the conveyor 31 moves in the direction of the arrow F by the width dimension (L) of the seedling mat 26, and then stops for an appropriate time before If the detection states of the first sensor 41 and the second sensor 42 are the same, the above operation is repeated. As a result, the seedling mat 26 with the seedling take-up plate 27 can be sequentially supplied to the spare seedling stand 28 from the front end side of the traveling machine body 1. When the second sensor 42 is ON, since the seedling mat 26 is fully loaded on the spare seedling stand 28, the movement of the conveyor 31 is stopped.

During the operation of transferring seedlings from the spare seedling stand 28 to the seedling mat placing portion 15a of the seedling stand 15: By rotating the rotating table 30 in the direction of arrow A in FIG. The longitudinal direction of all the seedling mats 26 above is parallel to the seedling mat mounting portion 15a of the seedling mounting table 15. The operator can send the seedling mats 26 on the spare seedling stand 28 in sequence to the seedling mat placing portion 15a to facilitate the seedling joining work. At this time, when the positions of the seedling mats 26 arranged side by side and the positions of the seedling mat mounting portions 15a where the seedling mats are consumed do not match, the conveyor 31 is intermittently moved by a distance of the seedling mat width. Positioning can be done only by rotating it normally or reversely, and it is not necessary to manually move the seedling mat 26 a long distance in the lateral direction. When there is a possibility that the backrest portion 6a of the control seat 6 interferes with the rotation base 30 during this rotation, the backrest portion 6a is tilted forward. In that case, an actuator (not shown) for tilting the backrest portion 6a forward may be operated by a detection signal of the start of rotation of the rotary base 30. Further, the steering handle 7 is a tilt type and can be folded downward.

At the time of planting work: The preliminary seedling stand 28 is changed to the longitudinal longitudinal direction on the side of the traveling machine body 1 again. In this state, when the second sensor 42 is ON and the first sensor 41 is OFF (when the seedling mat 26 is on the rear side of the spare seedling stand 28 and the seedling mat 26 is not on the front end side), the conveyor 31 is moved to the arrow R. It is intermittently moved to the side, and this movement is repeated until the seedling mat 26 reaches the first sensor 41. As a result, the weight of the seedling mat is applied to the front side of the traveling body 1, and the front-rear balance is improved.

As described above, when the front and rear long preliminary seedling stands 28 can be turned sideways, if the lengthwise and right and left dimensions are equal to or shorter than the widthwise dimension of the seedling stand 15, the rice transplanter is stored in the warehouse. It is possible to prevent it from becoming bulky. The raising / lowering operation of the seedling planting device 10 has the following configuration. That is, the power from the engine 8 is transmitted to the speed changing mechanism in the transmission case 9 via a belt-type main clutch or the like to drive the rear wheels 5, and via a PTO shaft (not shown). It is transmitted to the seedling planting device 10. The main shift lever provided on the left side of the control seat 6 can be rotated to switch between H (high speed), L (low speed), and N (neutral position and seedling joint position). Since the dedent mechanism is released when the foot petal is depressed, the main gear shift lever is rotated to the L (low speed) and N (neutral) sides by the spring force, while the wire is used to cut the main clutch.

A hydraulic operation lever for actuating the hydraulic cylinder 13 to raise and lower the seedling planting device 10 is provided on the right side of the control seat 6, and when the hydraulic operating lever is turned forward, the seedling planting device is rotated. 10 is lowered to a seedling working position where it is grounded in the field scene 17 and rotated backward, the seedling planting device 10 is raised. When the seedling splicing sensor (not shown) arranged on the seedling mat mounting portion 15a of the seedling mounting table 15 senses that the seedling mat has been consumed and shortened, the operator sets the main shift lever to the neutral position or the seedling. Rotate to the joint position. Then, the hydraulic operating lever is forcibly rotated from the lowered position to the raised position beyond N (neutral position) via the interlocking shaft, and the detent mechanism disengages from the engaging groove to move the hydraulic operating lever. It is held in a predetermined raised position.

When the seedling planting device 10 rises and the upper end of the seedling placing table 15 rises to approximately the same height as the preliminary seedling stand 28, this is detected by a sensor provided at the rear end of the preliminary seedling stand 28, and Hydraulic actuator Operates an actuator such as a hydraulic cylinder attached to the lever. As a result, the hydraulic operation lever automatically returns to N (neutral position), so that the raising of the seedling planting device 10 is stopped. In this state, the actuator returns to free (non-operating state).

In this state, the worker can carry out the seedling joining work by dropping the seedling mat 26 from the spare seedling stand 28 from the upper end of the seedling stand 15. In this way, since the heights of the spare seedling stand 28 and the upper end of the seedling stand in the seedling planting apparatus 10 are substantially the same and the two are extremely close to each other, the spare seedling stand 28 is transferred to the seedling stand 15 in the same manner. The seedling mat 26 can be moved smoothly and the seedling mat 26 does not collapse.

When the seedling joining work is completed, the hydraulic operation lever may be returned to the lowered position and the seedling planting work may be restarted. When driving on the road, the seedling planting device 10 is raised to a position higher than the seedling joining work position. In that case, the sensor is switched to the inoperative state and the hydraulic pressure operation lever is rotated to the raised position. To do. Then, when it rises to a predetermined height, the wire connected to the parallel link mechanism 11 and the hydraulic operating lever pulls to return the hydraulic operating lever to the neutral position.

The seedling mat 26 can be placed along the longitudinal direction of the preliminary seedling stand 28 so that the longitudinal direction thereof is along. As described above, the width dimension of the conveyor 31 may be large so that the placement direction of the seedling mat 26 can be applied to either the front or back or the sideways. In addition, supporting members 45 such as horizontal bars may be provided on the outer surface of the support column 32 at appropriate vertical intervals so that the seedling mat 26 with the seedling picking plate 27 is additionally mounted on the traveling machine body 1. .

[Brief description of drawings]

FIG. 1 is a side view of a riding-type rice transplanter.

FIG. 2 is a plan view of a riding type rice transplanter.

FIG. 3 is a perspective view of a seedling mat and a seedling removing plate.

FIG. 4 is an explanatory view of the operation of a preliminary seedling table drive unit.

FIG. 5 is a side sectional view of a rotating portion of the preliminary seedling stand.

[Explanation of symbols] 1 traveling machine 3, 5 wheel 6 control seat 10 seedling planting device 15 seedling mounting table 16 seeding mechanism 11 link mechanism 13 hydraulic cylinder 15 seedling mounting table 26 seedling mat 27 seedling plate 28 spare seedling table 29 times Moving column 30 Rotating table 31 Conveyor 40 Drive motor 41 First sensor 42 Second sensor 43 Controller

Claims (1)

[Scope of utility model registration request] 1. A seedling planting device is connected to a rear portion of a traveling machine body provided with a control seat so as to be movable up and down, and the seedling planting machine is mounted in an inclined shape so that an upper end is located toward the rear part of the traveling machine body. In a riding type rice transplanter having a table, the traveling machine body is provided with a front and rear longitudinal seedling stand on a rotating support column standing upright on a side of a control seat, and the rotating support column is driven by a drive means. By rotating in the reverse direction, at least during the seedling joining work, the spare seedling stand is configured to be located between the rear portion of the operation seat and the seedling stand in plan view, and the spare seedling stand has a longitudinal direction A spare seedling stand device for a riding-type rice transplanter, characterized in that a conveyor for selectively driving the front and rear is provided.