JP2607743Y2 - Sheet holding device in rice action multi-transplanter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet holding device in a rice multi-transplanter.

[0002]

2. Description of the Related Art Conventionally, in the field of cultivation of fresh vegetables (field cropping) such as lettuce, Chinese cabbage, cabbage, etc., the heat retention of the field is enhanced to improve the germination and survival of seeds, In order to prevent the occurrence of weeds, mulch cultivation in which the soil surface is covered with a sheet such as a vinyl film has been widely used (Japanese Utility Model Laid-Open No. 63-4661).

[0003] In the field of rice cultivation, only the seedlings are taken out and the rice field is covered with a sheet similar to the above.
A multi-paddy rice cultivation method has been attracting attention because it can prevent the growth of weeds, solve the problem of environmental pollution caused by herbicides, and achieve simplification and labor saving of cultivation management after planting.

[0004] Various types of transplanters (multi-transplanters) for cultivation as described above have been conventionally proposed (Japanese Utility Model Application Laid-Open No. 62-21844, Japanese Utility Model Application Laid-Open No. 63-46).
No. 11, JP-A-2-44920, JP-A-2-44
44924, etc.). In general, a transplanting method using such a multi-transplanter generally connects a planting section to the rear of a traveling machine so as to be able to move up and down, and sequentially feeds out a roll-shaped sheet member laid on a roll support section rearward, so that a field scene can be obtained. The seedlings are planted from above on the sheet member covered with the planting rod while covering the seedlings. The present applicant has proposed an apparatus for performing the above-described multi-transplantation as shown in Japanese Patent Application No. 4-319402 and drawings.

[0005]

[Problems to be Solved by the Invention] At the time of multi-transplanting of rice effect, the sheet fed from the transplanter is extended to the transplanting field and brought into close contact with the plant before planting, and after the planting, the sheet feeding reaction force is reduced. It is necessary to secure it sufficiently in the field scene to secure enough and prevent the sheet from turning up or lifting, but especially when planting transplanted seedlings through the sheet with the planting rod, When cavities occur, the seedlings held by the planting rods fall off due to the shock penetrating the sheet, or the posture is disturbed, resulting in disturbance of the planting posture. Due to the stability, there were problems such as damage to the seedlings, falling down, and a floating seedling phenomenon.

[0006]

A feature of the present invention for solving the above-mentioned problems is that a roll-shaped paper sheet 16 fed out so as to cover a field scene 51 as the aircraft travels,
In the multi-transplanter provided with the planting rod 13 for planting the transplanted seedling 41a from the unfolded sheet 16, the planting rod 13 operates up and down with the planting operation of the planting rod 13 described above.
At the rear position close to the planting rod 13 at the time of transplanting the seedlings, the sheet 16 is pressed into contact with the field scene 51 to make close contact therewith.
The point is that a holding tool 44 capable of being deformed by force is provided.

[0007]

The roll-shaped sheet 16 is sequentially fed with the feeding end fixed to the field scene 51 as the multi-transplanter advances, and covers the field scene 51 extending from the front of the planting rod 13 to the bottom. The planting rod 13 scrapes the seedling 41 on the transplanting machine and penetrates the sheet 16 and transplants it. At this time, presser 44
The sheet 16 is pressed into close contact with the field scene 51 in the vicinity of the planting rod 13 at least from the start to the end of the operation of planting the seedlings in the field by the planting rod 13. By this operation, the planted seedling 41a is planted in a state in which the sheet 16 is in close contact with the field scene at least at the planting position, and troubles due to planting in the floating state of the sheet 16 are prevented. Since it is pressed and contacted to the field in small increments or continuously with the planting operation, the adhesion and fixation to the field scene after planting are also enhanced.

[0008]

1 and 2 are an overall side view and a plan view of a multi-transplanter (rice transplanter) according to the present invention, in which a traveling body 1 is supported by front and rear wheels 2 and 3, A bonnet 6 and a driver's seat 7 are mounted, and a planting machine 9 is attached to the rear of the fuselage via an elevating link 8 so as to be able to move up and down and roll freely. The left and right sides of the bonnet 6 form a rack for replenishing seedling stock. An auxiliary seedling stand 11 is provided.

[0009] On the working machine 9 is a seedling rest 1 whose upper end is inclined forward.
2 is inclined, and a mat seedling 41 at the lower rear end of the seedling rest 12 is provided.
A well-known rotary planting rod 13 for sequentially scraping and transplanting with the machine running is attached to a planter case 30 constituting a working machine frame, and a bottom surface of the working machine 9 is adapted to follow a field scene while the machine is running. The swinging of the lifting link 8 is controlled by sensing the contact pressure or the height of the contact and the work machine 9 is supported at a predetermined height (the planting depth is determined by this height control). A holding roller 14 composed of a long roller is horizontally supported by an equalizer arm 15. The pressing roller 14 also has a function of guiding the feeding of the sheet 16 described below and a function of pressing against the field scene. At the upper front position of the pressing roller 14,
A cylindrical sheet case 17 for rotatably supporting a sheet 16 of a paper sheet made of corrugated paper made of recycled paper or the like in a lateral direction so as to be rotatable is formed to constitute a working machine frame. . Reference numeral 18 denotes a stand that supports the work machine 9 in a state where it is turned clockwise and protrudes downward when the work machine 9 is stored, and guards the work machine 9 in a rearward state.

Reference numeral 20 denotes a sheet 1 supported on the side of the fuselage.
6 is held by a support arm 25 supported horizontally and rotatably behind the machine body 1 and a support frame 31 supporting a preparatory roll. When replenishing roll paper, the support frame 31 and the front end are held from the side. The auxiliary roller 20 is rotated backward at the fulcrum 19 to move the preliminary roller 20 to the position of the sheet case 17 and is inserted. A gate-shaped handle 32 in a side view is erected in the front-rear direction on the support frame 31 at a position on the front side of the driver's seat 7, and when the support frame 31 rotates and when the operator steps on the step 34 to get on and off. Can be used as a handle. Reference numeral 33 denotes a lock device which locks the front end of the support frame 31 so as to be detachably fixed to the body 1 side, and is unlocked by a lock operation unit 35 attached to the arm 25.

A guide roller 29 for feeding out a sheet is rotatably supported at the rear opening of the seat case 17, and the sheet 16 is pushed backward by the lower surface of the holding roller 14 while being pushed to the field scene while the body is running. Touched,
The rear end of the sheet is laid sequentially in a belt shape while holding the feeding reaction force while touching the field scene. 21 is the seat case 1
7. A sheet receiver provided with a plate-like guide 21b along a lower portion of a rod-like support 21a extending in a fork shape rearward from a position below the lower part 7 and feeds out the sheet in a state where the body is raised when the body is circulating or not working. It catches the end.

Reference numeral 22 denotes a sheet cutter formed of a sawtooth-shaped thin plate laterally provided at a position rearward of the working machine 9 and both ends of a cutter arm 2 pivotally supported on the side of the working machine.
An operation wire 26 attached to the rear end of the driver's seat 3 and pulled by the lever 24 for operating the cutter on the side of the driver's seat 7
The sheet 16 is cut at the sheet covering end position by swinging the rear end of the cutter arm 23 up and down via the, and the cutter 22 is knocked down on the field scene. 2
Reference numeral 8 denotes a sheet sensor attached to the opening of the seat case 17, which is provided at a position close to the seat 16 so as to issue an alarm when the remaining amount of the seat 16 is exhausted.

[0013] Seat case 1 constituting a working machine frame
At the lower left and right ends of the bracket 7, a bracket 36 protrudes. A single leveling roller 37, which is slightly shorter than the width of the seat 16 and larger than the left and right width of the rear wheel 3, is rotatably supported on the bracket. When the transplanting operation is performed by lowering the working machine 9 on the ground, the wheel traces and other irregularities of the field on which the sheet 16 is laid are averaged out. By this leveling operation, the sheet 16 is laid on the averaged and leveled field scene without forming an air pocket more closely, making the sensing of the rice field by the pressing roller 14 accurate and increasing the planting depth. Be accurate.

Further, at the left and right ends of the rear lower part of the working machine 9, the sheet 16
An end pressing roller 38 that is rolled and pressed so as to press the left and right ends on the field scene is supported by an arm 39 so as to be able to move up and down freely. The end pressing roller 38 is a sheet case 1
The right and left ends of the sheet 16 fed out onto the sheet receiver 21 from the sheet 7 are surely pressed.

In the multi-transplanting operation by the above-mentioned apparatus, in a field such as a paddy field, the feeding end of the roll-shaped sheet 16 is fixed to the starting point of transplantation, and the work machine 9 is lowered and grounded by the pressing roller 14 and the end pressing roller 38. This is performed by running the body 1 while pressing the sheet 16. The planting rod 13 is operated along the trajectory L while the vehicle is running, and the seedling rest 12 is moved.
The mat-shaped seedlings 41 are scraped from the lower end of the sheet 16 and extended in the field, and the seeds 41 are sequentially planted through the sheet 16 laid on the sheet.

FIG. 3 shows the structure of the planting portion. A rotor 42 that rotates counterclockwise around a rotor shaft 40 is supported on the side surface of the planter case 30. Both ends of the rotor 42 have a beak 13a and a fork. 13b and the planting rod 1
The point at which 3 is provided via the planter arm 43 and the planting operation referred to as the double action method are known. In the vicinity of the rear portion of the planter arm 43 of the planting portion, a holding member 44 for holding a sheet is attached, and the holding member 44 projects vertically to a mounting plate 46 as shown in FIG. It is composed of a holding frame 47 bent in a gate shape and an elastic holding member 48 made of a wear-resistant rubber hose or the like which is inserted into and fixed to the lower end of the holding frame 47 in a U-shape. .

The presser 44 has a mounting plate 46 removably attached to the planter arm 43 or the rotor 42. When the planting seedling 41a is planted, the planting rod 13 is attached.
The lower end of the pressing member 48 elastically presses the sheet 16 against the field scene to form a concave pressing mark 49. And this pressing is shown in FIG.
As shown in the operation diagrams of (A) to (C), the seedlings 41a are inserted into the field 51 at least from the moment when the planting rod 13 pierces the sheet 16, and the planting is completed.
It is desirable that the process be continued from the time when the extraction is completed.

Due to the above-mentioned sheet pressing action, the sheet 16 does not move due to the action of the pulling force of the sheet 16 in front of the body and the external force of the planting rod 13 operating along the trajectory L while moving forward. Pressing and fixing to the field scene 51 so as not to be dragged by the pressing means 44, and a pressing tool 44 is provided on the field by the pressing tool 44 for each plant as the planting progresses.
Since the sheet 16 is pressed and brought into close contact and engaged while forming the sheet 9, the sheet 16 is more firmly fixed to the field scene, and the effect of preventing dragging is further improved.

FIGS. 6 (A) and 6 (B) each show a holding member 44.
FIG. 9A shows another embodiment, in which the lower end of a mounting plate 46 is bent to one side, and a holding member 48 made of a finger-like elastic member is provided at the lower end of the mounting plate 46 such that the tip is inclined downward. The seat 1 has a base end side elastically curved at the time of the planting operation of the planting rod 13.
Press 6.

FIG. 6B shows a third embodiment of the holding member 44. In this embodiment, a holding member made of a round bar-shaped metal or a synthetic resin material having elasticity having a J-shaped lower end is attached to a mounting plate. 46 is attached to the lower end of 46, and presses the sheet 16 with the rounded surface at the lower end.

FIGS. 7 and 8 show a fourth embodiment of the sheet holding device. In this embodiment, a holding member made of a pipe-shaped circular ring concentric with a rotor shaft 40 is attached to a rotor 42 located close to the planting rod 13. When the planting rod 13 is planted, the outer periphery of the lower part of the pressing member 44 is located at a position close to the rear side of the planting rod 13 and the seat 1
6, the sheet 16 is pressed against and adhered to the rice paddle surface while rotating and rotating with the rotor 42 to form a concave and linear pressing trace 49 along the fuselage traveling direction. The holding member 44 may be attached so as to freely rotate with respect to the rotor 42. In this case, the ring-shaped holding member 44 rotates and contacts the sheet 16 so as to rotate as the body advances. The holding member 44 may be made of metal or a synthetic resin material having elasticity and capable of elastically deforming the ring when pressed.

FIGS. 9 and 10 show the mechanism of the lock device 33 and its operating portion 35 when the preliminary roller 20 is rotated horizontally. The support frame 31 is a support for mounting the preliminary roller 20 in an arcuate shape. Arm 56 and support arm 5
6 is attached to the arm 25, and a lock device 3 is provided between the arm 25 and the support 11 for the auxiliary seedling.
3 and an unlocking operation section 35 is attached near the front end of the arm 25 further rearward.

The lock device 33 includes a guide plate 58 having an inclined guide surface protruding from the auxiliary seedling rest 11, a lock pin 59 protruding rearward from the rear surface of the guide plate 58, and a frontward direction facing the support frame 31. And an engaging pin 61 protruding from the body frame 1.
When it is swung horizontally to the side, the engaging pin 61 is guided by the guide surface, engages with the engaging concave portion 60 on the upper surface of the guide plate 58 so as to be detachable, stops, and is rotatable with the engaging pin 61. The notch-shaped hook portion 63 of the hook plate 62 supported by the elastically engages the lock pin 59, and the support frame 31 is locked to the body side.

On the other hand, the unlocking operation section 35 is provided with a gate-shaped handle 66 erected on the arm 25 via a plate 64 and a left-right rotation of the plate 64 via an operation shaft 67 along the handle 66. An operation lever 68 having a lower end movably supported by a shaft is provided. The front end of the shaft 67 is also supported by a plate 69 on the front end of the arm 25, and rotates with the rotation of the operation lever 68.

A link 7 is provided between the lever 71 at the front end of the shaft 67 and the lever 72 at the outer end of the hook plate 62.
3, a hook 63 is provided between the upper portion of the inside of the hook plate 62 and the plate 69 by a lock pin 59.
A spring 74 that acts in a direction in which the spring 74 is locked is provided.

As a result, the arm 25 and the support frame 3
When the engaging pin 61 is engaged with the concave portion 60 on the guide plate 58 by rotating the front end of the lock plate 5 horizontally to the body 1 side, the hook plate 62 is
9 automatically locks the support frame 31 to the fuselage side. On the other hand, when the operating lever 68 is gripped and rocked together with the handle 66, the hook plate 62 is disengaged from the lock pin 59 against the spring 74 and unlocked.

Reference numeral 76 denotes a stopper fixed to the lower end of the operation lever 68 or the operation shaft. When the operation lever 68 is released from the operation state by the spring 74, the operation of the operation lever 68 is determined by contacting the arm 25 with the outer side. It stops in a posture.

An openable / closable cover (cover) 70 for covering the preliminary roll 20 is mounted on the support arm 56 of the support frame 31 via a hinge 75 on the mounting arm 57 side.
In the meantime, while the cover 70 is in the middle of the open state and the closed state, the cover 70 is moved beyond the axis of the hinge 75 to the left or right as a fulcrum, and the cover posture is determined to be either open or closed.
A dog spring 80 is stretched.

FIG. 11 is a detailed view of the sensor 28 described above.
A sensor 28 composed of a limit switch is mounted via a sensor mounting plate 78, and a lower end is elastically pressed against a front end of the mounting plate 78 by a spring 81 connected to the feeding sheet 16 at the upper end. A position in which the sensor lever 79 is rotatably supported so that the seat 16 is not used up and the sensor lever 79 is accommodated in a slit (not shown) of the guide plate 82 for sheet guide below the seat case 17. When the sensor lever 79 is rotated to the maximum position, the upper end of the sensor lever 79 activates the sensor 28 and informs the operator of the paper exhaustion by an alarm sound, a warning light, or other display.

FIG. 12 shows another embodiment of the sensor 28, in which sensors 28a and 28b comprising photoelectric tubes for transmission and reception are attached above and below the rear opening of the seat case 17, and the paper cut by the sensors 28a and 28b. In the same way, the operator is notified.

[0031]

According to the device of the present invention configured as described above, the pusher that operates up and down in conjunction with the planting operation of the planting rod.
At the rear position close to the planting rod at the time of planting the transplanted seedlings with the fixture , the sheet is pressed against the field scene ,
The planting that is performed by penetrating the sheet in a state where the plant is in close contact with the field scene is performed reliably and at an accurate position, and the seedling falls from the planting rod at the time of planting, the posture is disturbed, and the planting immediately after planting is performed. In addition to preventing floating (floating seedlings), a sufficient fixing force is obtained by the close contact of the sheet with the field scene, so that the sheet is not dragged due to the aircraft running, and seedling damage and forward fall due to sheet dragging are prevented. There are advantages.

[Brief description of the drawings]

FIG. 1 is an overall side view of a multi-transplanter.

FIG. 2 is an overall plan view of the multi-transplanter.

FIG. 3 is a side view of the sheet pressing device.

FIGS. 4A to 4C are side views showing an operation state of the sheet pressing device.

FIG. 5 is a rear view showing the first embodiment of the sheet presser.

FIGS. 6A and 6B are second and third sheet pressing members.
It is a rear view showing an example.

FIG. 7 is a side view showing a third embodiment of the sheet presser.

FIG. 8 is a rear view showing a third embodiment of the sheet presser.

FIG. 9 is a front view of the auxiliary roller lock device.

FIG. 10 is a side view of the auxiliary roller lock device.

FIG. 11 is a detailed side view of a sheet-out notification sensor.

FIG. 12 is a detailed side view showing another example of the sheet-out notification sensor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Airframe 13 Planting rod 16 Sheet 41a Planting seedling 44 Holder

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Abe 667 Iida-cho, Oji-machi, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Inside Mitsubishi Agricultural Machinery Co., Ltd. 667 No. 1 Inside Mitsubishi Agricultural Machinery Co., Ltd. (56) Reference Japanese Utility Model No. 2-44924 (JP, U) Japanese Patent Publication No. 64-6730 (JP, B2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A roll-shaped paper sheet (16) which is unwound so as to cover a field scene (51) as the aircraft travels.
From the unfolded sheet (16), the transplanted seedlings (41
In the multi-transplanter provided with the planting rod (13) for planting a), the planting rod (13) operates up and down in accordance with the planting operation of the planting rod (13), and is planted when the planting rod (13) is transplanted. At the rear position close to the rod (13), the seat (1
6) Elastic deformation to press and contact the field scene (51)
A sheet holding device in a rice action multi-transplanting machine provided with a holding member (44) capable of being shaped .