JPH0617419U - Spare seedling stand device for riding type rice transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] The rotation base 32 of the spare seedling stand 28 arranged on the traveling machine body is rotated forward and backward by the drive motor 37 to reduce the labor required for seedling joining work. [Structure] In a traveling machine body of a riding-type rice transplanter, a rotation base 32 is provided on a rotation support column 31 standing upright on a side of a control seat, and the rotation support column 31 is rotated forward and backward by a drive motor 37. Due to
During the seedling splicing work, the rotation base 32 is located between the rear portion of the control seat and the seedling mounting base in plan view. A switch 38 for operating the drive motor 37 is provided on the side of the turntable on the side facing the control seat or on the traveling machine body. By simply operating the switch 38, the operator can horizontally rotate the heavy turntable on which the seedling mat is placed to change its direction. By providing the switch 38 on the side of the spare seedling table facing the control seat or on the traveling machine body, it is not necessary for the operator to move largely when changing the direction of the spare seedling table, and these can reduce the labor. .

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 Patent Publication No. 58-11805, which is a prior art. In this prior art, the auxiliary seedling stand is configured to be horizontally rotatable and fixed at a rotating position with respect to a pillar standing on the side of the traveling machine body. If many seedling mats are mounted on the spare seedling stand, the rotating operation of the spare seedling stand is heavy, and if it is performed frequently, there is a problem of heavy labor.

In view of the above, the present invention aims to reduce the labor in this kind of seedling splicing work and to efficiently carry out the seedling planting work.

[0004]

[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 with an actuator, the spare seedling stand is configured to be located between the rear part of the pilot seat and the seedling platform in plan view at least during the seedling joining work. A switch section for operating the actuator is provided on the side of the spare nursery stand on the opposite side or the traveling machine body.

[0005]

[Operation and effect of the device]

 With this configuration, the operator can operate the actuator simply by operating the switch, and the heavy preliminary seedling stand can be horizontally rotated to change its direction, which greatly reduces the labor. it can. Further, by providing the switch section on the side of the spare nursery table facing the control seat or on the traveling machine body, it is not necessary for the operator to largely move when changing the direction of the spare nursery table, and the labor is also reduced. Therefore, it is possible to improve the efficiency of seedling splicing work.

[0006]

【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 via a parallel link mechanism 11 so as to be movable up and down, includes a central transmission case 12 and a transmission shaft on both 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 in the guide portions projecting from the left and right transmission cases 14, 14 while the guide rails on the upper rear surface side of the seedling mounting table 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 spare seedling stands 28, 28 arranged on both the left and right sides of the.

Each preliminary seedling stand 28 is composed of a front fixed stand 30 attached to a fixed post 29, and a turntable 32 attached to a horizontally turnable turn post 31, and each turntable 32 is As shown in FIG. 2 in a plan view, it is arranged between the rear end of the front fixing base 30 and the upper end of the seedling mounting base 15. The upper and lower intermediate portions of the guide tube 33 fitted on the rotating column 31 are supported on the side surface of the traveling machine body 1 via brackets 34. In the gear box 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 in the directions of arrow A and arrow B in FIG. It is configured to rotate horizontally every time. As shown in FIGS. 4 and 5, at the lower end of the rotation support column 31, a protrusion piece 39 is fixed in the gear box 35 so as to rotate integrally. The pivot column 31 rotates forward and backward by an angle of 90 between the first limit switch 40 and the second limit switch 41, which are arranged with a proper center angle. The switch 38 for operating the rotary base 32 is provided on the side surface of the rotary base 32 and on the side close to the lateral side of the control seat 6 (inside the traveling machine body 1) (see FIGS. 2 and 4). ).

FIG. 6 shows a rotary drive circuit for the rotary base 32. The switch 38 includes a contact T on the seedling splicing side and a contact U on the planting side, and the first limit switch 40 and the second limit switch 40. It is connected to the drive motor 37 via a limit switch 41 and relay circuits 42 and 43. The first limit switch 40 and the second limit switch 41 are OFF when the protruding piece 39 is in contact, and are ON when separated. In addition, in this embodiment, since the turning bases 32 are arranged on both the left and right sides of the traveling machine body 1, a pair of left and right rotating columns 31 and gear boxes 35 are provided.

With this configuration, when the switch 38 is connected to the contact T, since the second limit switch 41 is in the ON state, the relay circuit 42 is turned on, the drive motor 37 is rotated in the forward direction, and the rotary base 32 is moved in the arrow direction. Rotate in the A direction. When the turntable 32 turns 90 degrees, the drive motor 37 is stopped when the relay circuit 42 is turned off by a sensor switch (not shown) or the switch 38 is turned off. 31 is stopped, and the turntable 32 is arranged in a left-right longitudinal shape so as to face the seedling placing table 15 (see the one-dot chain line state in FIG. 2), and the seedling mat 26 placed on each turntable 32 in the longitudinal direction. Is substantially along the longitudinal direction of the seedling mat mounting portion 15a of the seedling mounting table 15.

When the seedling splicing work is completed, when the switch 38 is connected to the contact U, the first limit switch 40 is in the ON state, so that the relay circuit 43 is actuated and the drive motor 37 is rotated in the reverse direction to turn the turntable. 32 is rotated in the direction of arrow B. When the rotary base 32 rotates 90 degrees in the same manner as described above, the drive motor 37 is stopped when the relay circuit 42 is turned off by a sensor switch (not shown) or the switch 38 is turned off. Are oriented along the longitudinal direction of the traveling body 1.

The switch 38 may be provided on the traveling machine body 1 or the like between the inner surface of the turntable 32 and the control seat 6. As described above, the switch 38 is provided on the side surface of the turntable 32 and on the side close to the side of the control seat 6 (inside the traveling body 1), or the switch 38 is provided on the inner side surface and the control seat 6. If the switch 38 is provided on the traveling machine body 1 between the two, the switch 38 will be located at a position where it does not interfere with the operation of the rotating base 32. It is possible to easily perform the work of starting and stopping the rotation of the moving base 32.

On the other hand, 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 transmission mechanism in the transmission case 9 via a main clutch such as a belt type, drives the rear wheels 5, and transmits seedlings via a PTO shaft (not shown). It is transmitted to the 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 cuts 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 rotated forward, the seedling planting device 10 is moved. 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 of the seedling mounting table 15 detects 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 control lever is forcibly rotated from the lowered position to the raised position over N (neutral position) via the interlocking shaft, and the hydraulic control lever is disengaged from the engaging groove by the dedent mechanism. Are held in a predetermined raised position.

When the seedling planting device 10 rises and the upper end of the seedling mounting table 15 rises to almost the same height as the preliminary seedling table 28, this is detected by a sensor provided at the rear end of the preliminary seedling table 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 operator can carry out the seedling splicing 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.

As shown in FIG. 7, when a storage box 44 having an upward opening is provided on the side surface of the turntable 32, a large number of the seedling take-up plates 27 after the seedling mats 26 have been supplied to the seedling placing table 15 are inserted. Therefore, the efficiency of seedling splicing work can be improved. 1 and 8 to 9 show that the auxiliary base frame 59 adjacent to the front fixed base 30 and the rotary base 32 of the spare seedling base 28 is flipped up via a link 60 or the like so as to be pivotably folded. When the operator gets in and out of the traveling machine body 1 from the side, the auxiliary underframes 59, 59 are flipped up and folded so that the operator can easily enter the control seat 6. Then, when the upper surfaces of the auxiliary underframes 59, 59 are extended to the original state so that they are flush with the upper surfaces of the front fixed base 30 and the rotary base 32, the positions are held by the stopper 61, so that the front parts are retained. The seedling mat 26 (with the seedling take-up plate 27) can be continuously moved from the fixed base 30 to the rotary base 32.

Further, horizontal bar-shaped support members 62 are vertically provided at appropriate intervals on the outer surfaces of the pair of front and rear fixed columns 29, 29 for supporting the fixed bases 30 on the left and right preliminary seedling stands 28. Thereby, the seedling mat 26 placed on the seedling take-up plate 27 can be additionally mounted on the support members 62, 62.

[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 a side sectional view of a rotating portion of the preliminary seedling stand.

FIG. 5 is an explanatory view of the operation of a preliminary seedling stand rotating portion.

FIG. 6 is a circuit diagram.

FIG. 7 is a perspective view of a turntable.

FIG. 8 is a side view of a pivotal connecting portion of the front fixed base, the rotary base, and the auxiliary underframe.

9 is a view taken along the line IX-IX in FIG.

FIG. 10 is a plan view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling machine 3, 5 Wheels 6 Steering seat 10 Seedling planting device 15 Seedling placement table 16 Planting mechanism 11 Link mechanism 13 Hydraulic cylinder 15 Seedling placement table 26 Seedling mat 27 Seedling plate 28 Preparatory seedling stand 29 Fixed column 30 Front fixing Base 31 Rotating support 32 Rotating base 37 Drive motor 38 Switch 39 Projecting piece 40, 41 Limit switch

Claims (1)

[Scope of utility model registration request] 1. A seedling planting device is connected to a rear part 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 the riding-type rice transplanter having a table, the traveling machine body is provided with a preliminary seedling stand having longitudinal lengths in front and rear of a rotating support column standing upright on the side of the control seat, and the rotating support column is directly reversed by an actuator. By rotating, at least during the seedling joining work, the spare seedling table is configured to be located between the rear part of the control seat and the seedling mounting table in plan view, and the side of the spare seedling side facing the control seat or A spare seedling stand device for a riding type rice transplanter, characterized in that a switch unit for operating the actuator is provided on the traveling machine body.