JPH0617421U - Spare seedling stand device for riding type rice transplanter - Google Patents

Abstract

(57) [Summary] [Objective] The operation of raising the upper end of the seedling mounting table 15 of the seedling planting apparatus 10 is simplified until the height substantially matches the height position of the spare seedling table 28 on the rear side of the traveling machine body. [Structure] When the main gearshift lever provided near the control seat of the traveling machine body is set to the seedling joint position, the hydraulic operation lever 51 is forcibly rotated to the raised position, and the sensor 5 provided on the spare seedling stand 28.
When it is detected that the upper end of the seedling mounting table 15 approaches at 6,
The hydraulic operation lever 51 is automatically returned to the neutral position so that the upper end of the seedling placing table 15 is raised to substantially the same height as the preliminary seedling placing table 28 and held at that position.

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 mounted is disclosed in, for example, Japanese Patent Publication No. 58-11805 and Japanese Utility Model Publication No. 62-30893.

In Japanese Utility Model Publication No. 62-30893, the seedling mat supply port in the spare seedling stand and the seedling mat receiving port at the upper end of the seedling stand in the seedling planting device are in a raised state. It is disclosed that and are arranged to be close to each other. By the way, in this prior art, the specific configuration thereof is unknown, and the operation of raising and lowering the seedling planting device by the operator is not disclosed, and the convenience of the operation has not been pursued.

In view of the above, the present invention aims to efficiently carry out seedling planting work in pursuit of convenience in this type of 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 body equipped with a control seat so as to be able to move up and down through an actuator, and the seedling planting device is connected to the rear part of the traveling body. In a riding-type rice transplanter in which the upper end is located and the lower end is arranged in a slanted manner so that the lower end faces the lowering planting mechanism, the traveling machine body should have a flat seedling stand at least during the seeding operation. When the main gearshift lever provided near the rear of the pilot's seat and the seedling mounting table is set to the seedling joint position, the upper end of the seedling mounting table is activated by the operation of the actuator. Was raised to approximately the same height as the preliminary seedling stand and held at that position.

[0006]

[Operation and effect of the device]

 With this configuration, the operator simply switches the main shift lever to the seedling splicing position, and the seedling planting device automatically rises, and the upper end of the seedling placing table in the seedling planting device is located at the height position of the spare seedling plant. When it comes to, the height position is automatically maintained, so that the fine adjustment of the raising operation of the seedling planting device, that is, the upper end of the seedling mounting table is not too high or too low with respect to the spare seedling table. It is extremely easy to do so, and the effect is that seedling splicing work can be executed efficiently.

[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 as an actuator that is 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 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 stand 29 and a turntable 32 attached to a horizontally turnable stand 31, and each turntable 32 is seen in a plan view. 2, 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 cylinder 33 fitted on the support column 31 are supported on the side surface of the traveling machine body 1 via a bracket 34. A drive motor 37 and a transmission gear mechanism 36 capable of rotating in the forward and reverse directions are built in a gear box 35 at the lower end of the column 31, and the column 31 is horizontally rotated 90 degrees in the arrow A direction and the arrow B direction in FIG. When the rotary table 32 is rotated to the state shown by the alternate long and short dash line in FIG. 2, the longitudinal direction of the seedling mats 26 placed on the respective rotary tables 32 is the longitudinal direction of the seedling mat mounting portion of the seedling table 15. It will almost follow.

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 the belt-type main clutch 40 in FIG. 5 to drive the rear wheels 5, and also through the PTO shaft (not shown). And transmitted to the seedling planting device 10. The main gear shift lever 41 in FIG. 5 is rotated to rotate the arm 45 attached to the operation shaft 44 of the mission case 9 via the link 43 together with the interlocking shaft 42, so that H (high speed), L (low speed), It can be switched to N (neutral position and seedling joint position). Since the dedent mechanism 47 is released when the foot petal 46 is depressed, the main gear shift lever 41 is rotated to the L (low speed) and N (neutral) sides by the force of the spring 48, while the wire 49 disengages the main clutch 40.

Reference numeral 51 is a hydraulic operation lever for actuating the hydraulic cylinder 13 to move the seedling planting device 10 up and down, and when turned leftward in FIG. 6, the seedling planting device 10 is grounded to the field scene 17. By descending to the seedling working position and rotating to the right in FIG. 6, the seedling planting device 10 is elevated. 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 speed change lever 41 to the neutral position or Rotate to the seedling joint position. As a result, the interlocking shaft 42 is rotated in the direction of arrow C in FIG. 6, and the hydraulic operation lever 51 is directed from the lowered position in FIG. 6 to the raised position beyond N (the neutral position) via the pressing lever 50. To force it to rotate. At this time, the rotating arm 52 is pushed up by the auxiliary arm 53 that rotates integrally with the pressing lever 50, and the trochanter 54 fixed to the rotating arm 52 moves to the dedent plate 55 fixed to the hydraulic operation lever 51. When disengaged from the engagement groove, the hydraulic operation lever 51 is held at 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 the sensor 56 provided at the rear end of the preliminary seedling table 28, An actuator 57 such as a hydraulic cylinder attached to the hydraulic operation lever 51 is operated. As a result, the hydraulic operation lever 51 automatically returns to N (neutral position), so that the raising of the seedling planting device 10 is stopped (see the alternate long and short dash line state in FIG. 6). In this state, the actuator 57 is returned to the free state (non-operating state).

In this state, the worker 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 51 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 56 is switched to the inoperative state and the hydraulic operation lever 51 is turned to the raised position. Move. Then, when it rises to a predetermined height, the wire 58 connected to the parallel link mechanism 11 and the hydraulic operation lever 51 pulls to return the hydraulic operation lever 51 to the neutral position.

FIGS. 1 and 7 to 9 show that the auxiliary base frames 59, 59 adjacent to the front fixed base 30 and the rotary base 32 of the preliminary seedling base 28 are flipped up via a link 60 or the like. When the operator gets on and off from the side of the traveling machine body 1, the auxiliary underframes 59, 59 are flipped up and folded so that the operator can easily enter the control seat 6 when the operator gets in and out of the traveling machine body 1 from the side. 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 stoppers 61. 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.

As shown in FIGS. 1 and 2, in front of the front fixing base 30 extending to the front end side of the traveling machine body 1, a vertically long handrail 62 whose ends are fixed to the traveling machine body 1 and the fixed column 29 is provided. By providing the above, the operator can safely get on and off between the steps 63, 36 on the left and right sides of the front part of the traveling body 1 and the ridge, and the function of protecting the front end part of the preliminary seedling stand 28 against collision. Can also fulfill.

[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 the main shift lever.

FIG. 6 is an explanatory view of the action of a hydraulic operating lever.

FIG. 7 is a side view of a rotary connecting portion between a front fixed base or a rotary base and an auxiliary underframe.

8 is a view on arrow VIII-VIII of FIG. 7. FIG.

9 is a plan view of FIG. 7. 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 Support 32 Rotating Base 41 Main Shift Lever 42 Interlocking Shaft 51 Hydraulic Operating Lever 54 Rotor 55 Dedent Plate 56 Sensor 57 Actuator

Claims (1)

[Scope of utility model registration request] 1. A rear part of a traveling machine equipped with a control seat is connected with a seedling planting device via an actuator so that it can be moved up and down. In a riding-type rice transplanter in which a seedling placing table is arranged in an inclined shape toward the planting mechanism at the bottom, the traveling machine body,
At least during the seedling splicing work, a spare seedling stand is provided so as to be located between the rear portion of the control seat and the seedling mounting table in a plan view, and the main gearshift lever provided near the control seat is set to the seedling splicing position. Is operated so that the upper end of the seedling mounting table is raised to substantially the same height as the spare seedling mounting table and held at that position, the spare seedling mounting apparatus for a riding type rice transplanter.