JPH0787850A - Sheet-pressing apparatus of mulching transplanter - Google Patents

Abstract

PURPOSE:To provide a sheet-pressing apparatus capable of surely and easily pressing and fixing the starting end part of a sheet on a field by an operator at the initial stage of the mulching transplantation work. CONSTITUTION:A sheet S horizontally supported by a supporting apparatus 9 of a mulching transplanter B is delivered and laid on a field. A seedling is planted through the sheet S with a transplantation claw 8. The starting end of the sheet S laid on the field is pushed into the soil with a vertically movable pressing piece 15 placed behind the transplantation claw 8. The pressing piece 15 is divided in the lateral direction of the sheet S into proper sections interposing a draining gaps between the sections.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressing device for embedding a sheet laid in a field with a multi-transplanter.

[0002]

2. Description of the Related Art In recent years, in fields such as rice cultivation or upland cultivation, seedlings are inserted from above the sheet with transplanting nails while the sheet such as a vinyl film or a sheet based on paper material is laid in the field. A multi-transplant cultivation method for planting is known, which can reduce the growth of weeds and promote good cultivation of crops while eliminating the need for herbicides and protecting the environment, and can also simplify cultivation management and save labor. It is attracting attention as a means.

In a multi-transplanter for mechanically performing the above-described cultivation method, generally, a transplant portion is mounted on a rear side of a traveling machine body so as to be able to move up and down, and a sheet member accommodated in a seat supporting portion is sequentially extended backward. A laying device such as a sled type float or a wheel float is used to press and guide the laying so as to cover the field scene, and seedlings are planted in the field scene from above the sheet member by the transplanting claws.

[0004]

By the way, in a multi-working machine for laying a sheet in a field scene with the above-mentioned multi-transplanter, when the pressing force for pressing the sheet against the field scene by the laying means such as a float is too strong. The sheet is entangled in the soil, and if it is too weak on the contrary, the sheet floats up and is easily affected by wind, etc., and the sheet immediately after laying is dragged in the traveling direction by the laying resistance of the float, a so-called sheet There is a problem that tailored seedlings are pushed down due to tailgating.

Further, the above-mentioned sheet member is fixed for a predetermined number of days (40 to 5).
When using a paper sheet formed of paper material to dissolve and reduce it in the field after a lapse of 0 days), if the pressing force at the time of laying is weak, this paper sheet will not be sufficiently adhered to the rice field surface such as paddy field. There is a problem that when transplanted with a transplanted nail without being wet, the seedlings are damaged such as a waist break, resulting in poor growth of crops.

Further, at the beginning of traveling of the machine, that is, at the time of starting the multi-work, the seat is pulled out to the rear of the transplanting section, and each time, the assistant presses and fixes the starting end of the seat to the field scene at the rear of the machine to prevent the dragging of the seat. Therefore, extra manpower is required, and in particular, in the case of multi-row planting, the sheet width is wide, so that there is a drawback that a plurality of personnel are required. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to provide a sheet pressing device in a multi-transplanting machine that allows a driver to press and fix the seat start end portion appropriately at the initial stage of multi-transplanting work.

[0007]

A sheet pressing device in a multi-transplanter according to the present invention for solving the above-mentioned problems extends a sheet member laterally stored in a supporting portion and runs while laying it in a field, In a multi-transplanter in which seedlings are planted from the sheet by a transplanting nail, a pressing member is provided up and down freely behind the transplanting nail, and the starting end of the sheet laid in the field scene can be embedded and operated in the field scene. is doing. Further, since the pressing member is divided in the sheet width direction to have a drainage interval, the sheet can be laid while draining.

[0008]

[Operation] The sheet S installed on the support section 9 of the transplanting section C is unrolled toward the rear as the machine runs, and is laid while being pressed by the roller float (laying device) 9 in the field scene.
Then, when the starting end portion of the sheet S is moved downward at the time when the starting end portion reaches below the pressing device 12, the pressing piece 15 presses the starting end portion of the sheet S in the width direction and pushes and fixes it in the field scene.

[0009]

[Examples] A configuration of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a passenger rice transplanter B equipped with a multi-device A exemplified as a multi-transplanter, which has front wheels 2 and rear wheels 2a, an engine 4 in the front part, and a driver's seat 3 in the rear part. At the same time, the rear part supports an implanting part to which the multi-device A is assembled so as to be able to move up and down via a lifting link mechanism 5 and a bending power transmission shaft 5a which are hydraulically moved up and down.

[0012] The transplanting section C is located on the transmission case 6 and is slanted in a front-rear-low direction so as to be placed on a mat seedling, and a seedling mounting table 7 is located at the lower end of the seedling mounting table 7 to scrape off the seedlings. A plurality of transplanting claws 8 to be planted in the field are provided, and a multi-device A including a support device 9 for a sheet roll (roll paper) S and a roller float (laying device) 10 is provided in front of the lower portion of the transmission case 6. There is.

Further, a sheet S corresponding to the width of the transplanting portion C wider than the planting width is mounted on the supporting device 9 in a state of being wound in a roll shape so as to be able to be fed out sideways. Further, the roller float 10 uses the link mechanism having the equalizer fulcrum 10c for the leading roll 10a and the trailing roll 10b so as to be able to roll the sheet S in the width direction, and the transmission case 6 described above.
It is attached so that it can swing freely.

The preceding roll 10a is a smooth roll whose surface is pressed and nipped with the rice field (field scene) to guide the sheet S pulled out so as not to cause wrinkles and to guide the sheet S smoothly to be laid on the rice field. In addition, the ring body 11 is fixed to the outer periphery of the trailing roll 10b at a predetermined distance in the front position corresponding to the transplanted nails 8 of each strip.

The ring body 11 may be an integral one in which the surface of the trailing roll 10b member is formed in a concavo-convex shape. Therefore, the planting locus portion of the roll paper S can be properly moistened in advance as the planting surface R so that the planting by the transplanting claw 8 can be favorably carried out without damage to the seedlings, and the laying resistance is relaxed. Thus, multi-transplant work with less shock and vibration can be performed.

The pressing member of the streak pressing mechanism for positively wetting the planting locus strip portion of the sheet S as described above is the non-rotating sled 11a as shown by the dotted line in FIG.
May be installed in front of the transplanted nails 8 of each row, and the trailing rolls 10b may be provided on the outer circumference of the leading roll 10a.
You may form similarly to. Reference numeral 12 denotes a pressing device that presses and fixes the starting end portion of the sheet S on the rice field when laying the sheet S on the rice field.
The cutter 14 for cutting the sheet is attached to the rear end portion of the support bar 13 which has a square shape in a plan view and is pressed against the pressing surface H.
The pressing piece 15 having (FIG. 4) is detachably attached by a bolt 15a with a cutting margin L height provided on the entire width of the front side surface of the cutter 14.

Further, the support bar 13 is normally held in a solid line state by an appropriate supporting means such as a spring, and when the lever portion 13b formed at the front end portion is lifted and rotated in the direction of the arrow in FIG. The portion is configured to move downward and assume a pressing posture in a dotted line state. In addition, as described above, the lifting operation of the pressing device 12 and the cutter 14 is performed by the support 1
It can be made even more convenient if it is configured so as to be rotated by the driving force of the transmission case 6 so as to be operable by the operation lever 13C provided in the driver's seat 3.

In the above-mentioned configuration, the multi-transplanting work is performed as follows. First, in a state where the transplanting section C is lifted up as shown by the solid line in FIG. 1, the sheet roll S laterally accommodated and supported by the supporting section 9 is shown.
The sheet S is pushed out between the roller float 10 and the rice field, and is fed out when the tip of the sheet is drawn out below the preceding roll 10a and then the transplanting section C is lowered to the rice field to run the machine body 1. The starting end portion thereof reaches below the pressing device 12.

At this time, when the lever portion 13b of the pressing device 12 is operated in the direction of the arrow to move the pressing piece 15 downward, the pressing surface of the pressing piece 15 extends the entire width of the starting end portion of the sheet S as shown in FIG. Press it all the way and push it into the rice field to fix it in a buried condition. Therefore, the seat S is firmly fixed in the state where the starting end is embedded in the paddy field in the initial stage of laying on the paddy field, and is laid out satisfactorily in the state where there is no displacement of the sheet S in the initial stage of the aircraft running, and the sheet S is sufficiently laid in the initial stage of laying. In addition to the effect of fixing the sheet S to the paddy field, the planting work performed by penetrating the sheet by the grafting nail 8 can be satisfactorily performed without damaging the seedlings.

Further, when the pressing piece 15 is integrally attached to the cutter 14 which is moved up and down, the structure of the attaching portion is shared, and the pressing pieces 15 can be manufactured inexpensively by increasing the rigidity of each other. Further, when the pressing piece 15 presses the vicinity of the starting end portion of the sheet S, the blade edge of the cutter 14 does not completely cut the sheet S so that the starting end portion is embedded deeper behind the pressing piece 15 as shown by the dotted line in FIG. It works well and is in good condition.

At this time, the sheet S laid by the roller float 10 is first fed out by the preceding roller 10a having a smooth surface so as to extend the wrinkle of its full width and uniformly pressed against the ground, and then this portion is It is re-rolled by the following trailing roll 10b in a state of being slightly wetted in contact with the paddy field, and the planting locus is further deeply pressed by the pressing member which is the ring body 11 (see FIG. 1) to be embedded in a concave shape. A surface R is formed and laid.

Therefore, the sheet S of the planted portion is surely brought into close contact with a field scene such as a paddy field, for example, it is more reliably and quickly moistened even on a rice field where the water filling is insufficient, and the sheet S formed of the paper material is expanded. Since the transplant nail 8 is softened, the planting surface R can easily be punched out without damaging the seedlings while holding the seedlings, thereby enabling efficient multi-transplanting work.

When the sheet S is a vinyl sheet, a water retaining effect can be obtained in which water is stored in the concave planting locus line formed by the ring body 11, and this portion comes into close contact with the ground and is peeled off by wind or the like. Since it can be performed without giving a bad influence such as vibration, it is possible to favorably grow the crop. Further, as shown in FIG. 5, in the above-mentioned pressing device, the pressing piece 15 is partially installed in the width of the sheet S so as to correspond to, for example, only the rear part of each of the transplanted nails 8, 8 ... By doing so, the water or soft soil on the rice field in the width of the sheet S is discharged rearward from the interval R, R ..
Since the starting end portion of the sheet S can be embedded in the paddy field with Nos. 5, 15 ..., There is a feature that the starting end portion can be securely fixed without being easily separated due to water or soft soil.

Further, in this way, the pressing piece 15,
Numeral 15 particularly firmly presses the rear side of the transplanting nails 8 to bring the sheet S into close contact with the rice field, so that the transplanting nails 8 can be more favorably planted.

[0023]

Since the present invention is constructed as described above,
Since the starting end of the sheet can be securely fixed to the field scene, proper laying of the sheet can be continuously performed without causing tailing of the sheet especially in the early stage of multi-transplanting work where the laying resistance between the sheet and the field scene is weak. Can be done by
The seedlings can be transplanted satisfactorily without pushing down the seedlings or forming gaps between the adjacent laying sheets to grow weeds.

By providing the pressing piece for pressing the sheet with a drainage interval between the sheet widths, it is possible to more securely fix the sheet while preventing the sheet from rising.
Further, since the above-described work of fixing the start end portion of the seat to the field scene can be performed by the driver alone while operating the machine, it is possible to perform highly efficient multi-transplanting work without requiring extra personnel. .

[Brief description of drawings]

FIG. 1 is a side view of a multi-transplanter equipped with an embodiment of the present invention.

FIG. 2 is a plan view of the same multi-transplanter.

FIG. 3 is a rear view of the pressing device.

FIG. 4 is a side view of the pressing device of FIG.

FIG. 5 is a plan view showing another embodiment of the pressing device.

[Explanation of symbols]

A multi device 12
Pressing device B Riding rice transplanter (multi transplanter) 13
Support C transplantation part 14
Cutter 1 Aircraft 15
Pressing piece 8 Grafting nail S
Seat 9 Support device 10 Roller float (laying device)

Claims (2)

[Claims] 1. A multi-transplanter in which a sheet member laterally accommodated in a support portion is fed out and runs while laying in a field, and seedlings are planted from the sheet by a transplantation nail, the rear of the transplantation nail. A sheet pressing device in a multi-transplanter, wherein a pressing member is provided to be movable up and down, and a start end portion of a sheet laid in a field scene can be embedded and operated in the field scene. 2. The sheet pressing device for a multi-transplanter according to claim 1, wherein the pressing member is installed in an appropriate number with a drainage interval in the sheet width direction.