JPH07108162B2 - Sheet pressing device for multi rice transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates, the present invention relates to a sheet pressing device of a multi-field planting machine.

[0002]

2. Description of the Related Art In the field of rice cultivation, by raising only seedlings and covering the rice field with a sheet member such as vinyl film, weeds are prevented from growing and the problem of environmental pollution caused by herbicides is solved. Moreover, since the cultivation management after planting can be simplified and labor saving can be achieved, recently, the multi-paddy rice cultivation method has been attracting attention.

The transplanter for multi-cultivation as described above (multi-transplanter) is generally a roll-shaped sheet in which a planting part is connected to a rear part of a traveling machine body so as to be able to move up and down and is horizontally stretched on a roll supporting part. The members are sequentially fed out rearward and the seedlings are planted from above the covered sheet member by a planting rod while covering the field scene.

[0004]

By the way, in the above-mentioned multi-transplanter, for example, Japanese Patent Laid-Open No. 2-6051.
As shown in Japanese Patent Publication No. 1, when covering a field member with a sheet member , first, the sheet member is expanded with a tile roll and planted.
Guided below the float attachment portions, but so that pressure contact with the field surface of the sheet member by the pressing means float, the pressing force of the float relative to the seat member is too strong sheet member sinks into the soil On the contrary, if it is too weak, the sheet member floats above the paddy field surface and is easily affected by wind, etc., so it is necessary to ensure that the entire surface of the sheet member is adhered to the field scene such as the rice field surface with a proper pressure over substantially the entire width. . The sheet member immediately after laying liable dragged by float, it should be noted that not tailgating sheets.

Also , in the case of using the conventional sled-like float provided below the planting part of the riding rice transplanter, at the time of start, the sheet member is pulled out to the rear of the planting part, and the assistant at the rear of the machine every time. Since the sheet member is pressed against the end side to prevent the sheet member from being dragged, an extra manpower is required to hold the sheet member, especially in the case of multi-row planting, the sheet member is too wide. Or, since the sheet member is divided into a plurality of sheets, the pressing operation of the sheet member is complicated and a great deal of labor is required. Others were laid on the irrigated rice field
The sled-shaped float is pressed and slidably contacted on the sheet member.
There are drawbacks such as damage to the paper sheet member.

[0006]

Sheet pressing device of a multi-field planting machine according to the problem-solving means for the present invention, which has been made to solve the problems of the circumstances described above, the rear of the vehicle body (1) The planting part (P) is vertically connected to the
Roll the paper sheet member (b) that covers the field
It is wound around and rotatably mounted on the support (30),
Planting for planting transplanted seedlings in the field covered with the member (b)
Multi-rice transplanter equipped with a rod (21) in the planting section (P)
The paper sheet member is provided below the planting section (P).
(B) is compacted in the field and planted with the compaction.
Multiple rows of front and rear rows are used to detect the hydraulic pressure of the automatic lifting control mechanism.
The rotor (22) can be freely rotated on the left and right bearing arms (27).
Around the entire width of the planting part (P) is axially supported in the transverse direction,
A frame (2 that is swingably supported on the planting part (P) side
At the swing end side of 5), the intermediate part of the bearing arm (27) is
A plurality of rollers (2
The gist is that a space is formed below the planting part behind 2) and opened .

[0007]

During operation of planting (covering a paper sheet), a plurality of front and rear rollers roll up and down while following up and down the field scene to prevent the planting part from sinking. The sheet member by grounding the rotation of the row La entirely is to trampling close contact with the field surface in a uniform state. Low La is not possible, such as dragging the sheet member for grounding rotated from above the sheet member, the sheet laying from work beginning is ensured. Also roller
Oil for automatic control of raising and lowering of planting part by grounding
Perform pressure sensing.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described with reference to an embodiment shown in the drawings. In the drawings, a riding rice transplanter (multi transplanter) A equipped with a multi device as a multi transplanter is illustrated. 1 has a front wheel 2 and a rear wheel 3, and an engine 4 at the front.
Is a traveling machine body (the main machine of a rice transplanter) equipped with a driver's seat S near the rear part, and the rear side of the machine body is planted with a lift link 7 with a hitch H composed of an upper link 5 and a lower link 6 and an extension frame 8. The part P is connected so as to be able to move up and down and detachably. The extension frame 8 is integrally connected to the planting part P as shown in FIGS. 1 and 3, and the extension part 8 is interposed so that the planting part P is a normal riding paddy plant. It moves rearward of the machine, and a space portion a is formed in a lower portion of the rear end of the elevating link 7, and a roll support portion described later is arranged in this space portion a. . The planting part P is rotatably connected to the extension frame 8 via a fulcrum shaft 9 so as to follow the field scene (field) regardless of the inclination of the machine (see FIG. 3).

Numeral 10 is a universal joint shaft for connecting the PTO shaft 1a on the traveling machine body 1 side and the input shaft 11a of the drive case 11 on the planting portion P side. The universal joint shaft 10 is intended to maximize the height of the midway portion. Instead of a straight rod, a bending shaft divided at an intermediate portion is adopted, and the front and rear shafts 10a and 10b are located on the upper side of the space portion a as shown in FIG.
Intermediate shaft 1 rotatably supported by a holder 10 'fixed to the
0c and is designed so that the universal joint shaft 10 does not reduce the space for arranging the roll support portion, which will be described later.

By the way, in the rice transplanter A, fertilizer tanks 12 and 1 in which fluid fertilizers for shallow and deep layers are separately stored
3, fertilizer pumps 14 and 15, suction hose 16, discharge hose 17 and upper and lower two-stage soil fertilizer section (fertilizer nozzle) 18,
It is equipped with a fertilizer applicator B consisting of 19 or the like, and is adapted to side fertilize at the same time when planting seedlings. Of the fertilizer application nozzles 18 and 19, 18 are shallow-layer fertilizer application nozzles, 1
9 is a deep fertilizer application nozzle, and these fertilizer application nozzles 18, 19
In the embodiment, is fixed to a roll supporting portion 30 described later via brackets 18a and 19a, respectively (see FIG. 5).
The fertilizer application nozzles 18 and 19 can also be configured to be vertically adjustable and fixed.

[0011] planting platform P comprises from other prior high after low-shaped seedling mounting table 20, low La 2 2 like that laterally placed freely planting rod 21 and the rotation of the rotary of the drive case 11, this It has a structure in which the multi-device is integrally incorporated in the planting section P.

[0012] The row La 2 2 freely plurality of rotating in the front-rear direction is positioned below the planting unit P, and swingably axially supported in the vertical direction rearward side as a fulcrum (pin axis 24) , planting portion P while the low La 2 2 rotates the field surface
Is guided and guided, and at the same time, the sheet member b fed from a roll support portion described later is sequentially rolled into a field scene. That is, the low La 2 2 is configured, for example, synthetic resin or the like into a cylindrical shape and material, as shown in FIGS. 3 and 6 to 9, the pin shaft 24 to a bracket 23 fixed to the rear lower surface of the drive case 11 Through a support shaft 26 at the front end of a frame 25 that is pivotally connected up and down through a predetermined range.
The shaft 22a is attached to a triangular bearing arm 27 that is swingably connected so that the ends swing upside down.
It is rotatably supported via. The front side of the frame 25 is connected to the fixed side of the planting section P via a bending / extending mechanism D with an ammunition C. Therefore, the frame 2
5 is a similar movement and sled-like float known practices in response to changes in contact pressure of the low La 2 2 receives, bearing arms 27
Support shaft 26 for pivotally supporting at an intermediate position of the front and rear of the front and rear rows La 2
It serves as a fulcrum for swinging in the up-down direction and a fulcrum for sensing hydraulic pressure of the planting part elevation automatic control mechanism. Incidentally, the low La 2 2 the sliding portion or the like sealant is interposed the muddy water into the interior so as not to penetrate to the shaft 22a in order to sufficiently exhibit the buoyancy. 28 is a sensitivity adjusting lever, 29 is a planting depth adjusting lever, and G is a connecting tool connected to a hydraulic valve (not shown).

In this embodiment, the width of the sheet member b is wider than the planting width as shown in FIG.
Although those as low La 2 2 two arrangement structure of the long roller over the width the entire width before and after the sheet member b is shown, row La 2 2 may be obtained by dividing the plurality of left and right or, Place three or more rods in the front-back direction for each row
Rotatably support the rotors 22 on the left and right bearing arms 27, respectively.
You may hold and attach the said frame 25 (refer FIG. 10). Furthermore, the number of rows La 2 2, size and material, etc. may be appropriately changed upon implementation. Also, low La 2 2 can also be interchangeably or changeable configured to correspond to the field conditions and the like.

Reference numeral 30 denotes a roll supporting portion for accommodating and supporting a sheet member (hereinafter also simply referred to as a roll) b wound in a roll shape, and is located in the lower part of the front side of the planting portion P by utilizing the space portion a. It is attached to the part P. That is, as shown in FIG. 4, the left and right roll holders 32 fixed to the pipe frame 31 which is laterally mounted on the planting part P are extended to the vicinity of the rear wheel 3, and the rear end is located on the extension end side. Sheet feeding port 33
And a duct-shaped roll storage case 34 having both left and right ends opened is fixed, and the left and right open parts of the case 34 are covered with an openable roll storage opening lid 36 having a rear side as a fulcrum 35. Loading of the roll b into the inside 34 (replenishment at the start of the planting work and during the work) can be performed from either the left or right side of the machine body (see FIG. 5). A roll supporting shaft 37 having a sheet feeding photographing portion 37a is manually rotatably supported on the roll storage port lid 36 outwardly, and the roll b is between the left and right roll supporting shafts 37 via a core shaft b '. It is designed to be pinched elastically.

[0015] Incidentally, as a sheet member b, <br/> in this embodiment, generally, we use those sold called "in cardboard core", for this compound unbleached It is a recycled paper that uses 100% yellow-brown waste paper, and because it is a hard paper-like strong paper, it can withstand sufficient use as a sheet member for mulching cultivation, but after being laid on the rice field The recycled paper dissolves and dissolves in the mud within 40 to 50 days (after transplantation).

By the way, in the embodiment, the roll b is a wide one in order to cover the entire planting width in one step at the same time, and the case 34 for accommodating and supporting the roll b has a substantially machine width. Although the roll b and the case 34 are formed to have a correspondingly wide width, the roll b and the case 34 may be divided into a plurality of pieces. In the case of the split type, the roll storage cases 34 are arranged in a staggered manner or shifted forward and backward.

On the other hand, at the lower part of the case 34, a guide roller 38 is provided in the case 3 to facilitate the work of storing the roll b.
4 is provided so as to be switchable between an operating position that projects into 4 and a non-operating position that is retracted downward.
This is done by rotating the cam 40.

[0018] When 41 is in a state in which the planting unit P is increased (when the aircraft once the line or the like), sheet acceptor which supports receiving the sheet member b from below, in the front row La 2 2 (Example The lower part of the planting part P is circumvented from the lower side of the roll support part 30 and extended backward. This sheet receiver 41 is composed of a rod-shaped body or a plate-shaped body having an inverted V shape in a side view, and a plurality of sheet receiving bodies 41 are arranged at appropriate intervals in the planting width direction. When the lever 39 is operated, it is configured to be switchable between an operating posture in which the front side is a fulcrum and a substantially horizontal posture and an inclined posture in which it is inclined downward.

Reference numeral 42 is a cutter for seat cutting, which is attached to the planting portion P so as to be vertically movable around a support shaft 43. The cutter 42 has a base end operating portion 44a facing the vicinity of the driver's seat S. The arm 44 is fixed to the rear end of the arm 44, which has an inverted V shape in a side view and a U shape in a plan view, over the entire width of the laying of the sheet member b. When the aircraft moves to the next process, the arm 4 is pushed by pushing up the base end operation portion 44a of the arm 44.
4 The cutter 42 at the rear end rotates downward about the support shaft 43 as a fulcrum, whereby the sheet member b coated on the rice field can be cut while being grounded on the rice field. Further, the cutter 42 is not a single blade, but a large number of blades arranged continuously in the lateral direction (8 blades in the embodiment).
And is partially replaceable by removing the mounting bolt 45 of each blade. The arm 44 is held at the position shown by the solid line in FIG. 1 through a positioning mechanism such as a spring or a stopper (not shown) so as to position the cutter 42 at the upper retracted position except when cutting.

Now, on both left and right sides of the traveling machine body 1, there are arranged front and rear spare roll support portions 47 for supporting the preliminary rolls 46 of the roll b, and the front and rear spare roll support portions 47 are arranged along the traveling machine body. Are configured to be rotatable outwardly. That is, the support frames 48 are fixed to the rear sides of the driver's seat S in a C shape in plan view with the front end side slightly extended to the side of the machine body, and the auxiliary rolls 46 are attached to the extended end sides. A preliminary roll support portion 47, which rotatably supports four guide rollers 49 so as to receive and support from the front, rear, left and right and to perform a guide action when the preliminary roll 46 is taken in and out, is outwardly provided via a support shaft 50. The auxiliary roll 46 is rotatably connected and is supported by the auxiliary roll support part 47 when the auxiliary roll support part 47 is rotated outward by approximately 90 degrees with the planting part P being raised. Coincides with the storage opening of the roll storage case 34 of the roll support part 30 which is horizontally extended to the planting part P side, and the loading work (replenishing work) of the spare roll 46 to the roll support part 30 is spared from one side of the machine body. Push the roll 46 in It is able to perform on the easy.

By the way, as shown in FIGS. 1 and 2, one spare roll 46 can also be supported on the front side of the bumper 51. That is, the bumper 51 is also provided with the preliminary roll support portion 53 via the bracket 52,
A spare roll 46 is laterally held by the support portion 53 by a band 54, and the front spare roll 46 also serves as a balance weight of the machine body .

In the above structure, when the planting work ( paper sheet covering work) is started, first, the planting part P is lifted up, and the roll supporting part 30 and the auxiliary roll supporting parts 47, 53 are loaded. Rule b and the spare roll 46 are loaded respectively. Then, pull out the knob 37a sheet feeding by the pivoted feeding end of the rolls b loaded in the roll support unit 30 from the sheet Repetitive outlet 33 to the rear position of the row La 2 2. At this time, the sheet receiving member 41 can be easily pulled out by rotating the sheet receiver 41 downward. Then, the sheet receiving body 41 is rotated back to the upper, is lowered ground planting portion P, together with the sheet acceptor 41 retracts the mud, the drawn sheet member b is low La 2
It is pressed against the rice field by 2 (see Fig. 1).

When the planting part P and the fertilizer application device B are started in this state and the work is started, the sheet members b are successively fed out from the roll supporting part 30 as the machine body 1 moves forward to cover the rice field (full surface multi). The seedlings are planted from above the covered sheet member b with the planting rods 21 and the soil fertilizer 1
8 and 19 side fertilization is applied to the upper and lower two steps of the shallow and deep layers in the soil.

By the way, the planting unit P is to be guiding the field surface by the ground the rotation of the low-La 2 2 while receiving the low La 2 2 buoyancy, without undergoing mud resistivity such as sled-like float, Therefore, the towing load of the machine 1 can be reduced as much as possible, and the mud pushing that disturbs the rice field can be eliminated. The field surface is leveled in Hitoshitaira over the entire width of the sheet width by the row La 2 2 from the top of the sheet member b preceding the planting.

Further, since the low La 2 2 is to trampling the sheet member b by rolling never slides on the sheet member b in the field plane, the field plane without unreasonable trampling action relatively stiff sheet without also or damage or tearing through sheet member b due to abrasion as or had irregularities
The member b absorbs the water in the field scene and is reliably brought into close contact with the field scene in a stable state. In this embodiment, as the sheet member b
Since using recycled paper, this advantage is remarkable.

Furthermore, the sheet member b coming sequentially Repetitive out from the roll support 30 in the ground starting side is accurately guiding rearward undergoing uniform drawer action over sheet entire width by the low La 2 2 in ground rotation because, laying the action of the sheet member b is not only be very smoothly, the full width of simultaneously and the sheet member b lateral direction without a time lag of the sheet member b is treading with uniform pressure by the low La 2 2 As a result, wrinkles do not occur locally or raised portions do not occur, and the entire surface of the sheet is laid in a stretched condition in the field.

On the other hand, at the start of the planting work, the sheet member b
Because the grounding length of is short (the grounding area is small),
Although merely presses the sheet member b from above those prone sheet member b is dragged along with the advancement of the machine body, as described above, roll while low La 2 2 presses the sheet member b to the field plane Therefore, unlike the conventional sled-like float, the float does not drag along with the seat member b at the time of start, and the seat member b does not shift or wrinkle from the beginning of the aircraft. The foot pressure is accurately applied to the appropriate position in the field. Therefore, it is not necessary for an assistant to manually press the end side of the sheet member b in order to prevent dragging, unlike the conventional one.

Further, since the low-La 2 2 are a plurality of arranged in the longitudinal direction, the ground contact pressure at that with correspondingly planting unit P is lowered, treading action on the sheet member b corresponding to the number of rows La 2 2 However, since it is repeated over a plurality of steps, there is no variation in the degree of close contact with the field scene, and the entire sheet member b can be pressed and contacted evenly with respect to the field scene.

The planting depth is determined by the planting depth adjusting lever 29.
Can be adjusted by the
By using the hydraulic pressure sensing support shaft, it is possible to operate in a similar manner to the conventional one.

By the way, in this embodiment, since the recycled paper is used as the sheet member b, the recycled paper dissolves and dissolves in the mud 40 to 50 days after transplanting, so that the conventional cultivation technique can be used. Not only is the troublesome and labor-intensive work of collecting the sheet members unnecessary, the labor saving of mulching cultivation and the recycling of natural resources are achieved, and the scattering of the sheet members by the wind is also eliminated.

[0031]

Since the present invention is constructed as described above,
Yet one which can reduce the tractive force of the vehicle body, a plurality of rows La longitudinal field surface preceding the planting
It is leveled more from the top of the paper sheet members Hitoshitaira over the entire width of the width of the sheet.

Further, the sheet member is fixed by rolling contact of the rollers.
It is pressed against the rice field and the roller is controlled to move up and down.
To detect the oil pressure for
There is no need to provide a sled-like float for hydraulic pressure sensing.
Become The row La is because it is intended to trampling on the field surface of the sheet member by rolling never slide on the sheet member, the field plane without unreasonable treading action as compared with the conventional sled-like float is relatively Even if the sheet member is hard or has unevenness, the sheet member is not torn or damaged due to scratching, so that the sheet member can be reliably brought into close contact with the field scene in a stable state.

In particular, instead of the conventional sled float,
The entire front and rear rollers are lifted and the left and right bearing arms are
The front and rear rollers are
Oscillate up and down to follow the field scene over the entire width
Therefore, even if the field scene is tilted or uneven, push the paper sheet member
Good follow-up of the pressure, in addition to further better adhesiveness, planting
Oil pressure sensing for part elevation control is also averaged for tilts and irregularities.
Become accurate.

Furthermore, since the ground starting end side of the sheet member is low La during rotation to guidance over the entire width of the sheet member not only laying the action of the sheet member is very smoothly performed, the more the sheet member at a low La Since the width direction is applied at the same time and the entire width is uniformly pressed, it is possible to lay the entire surface of the seat in a stretched condition in the field without causing wrinkles or raised parts. .

[0035] In addition, since the low-La rolls while pressing the sheet member in the field surface, rather than things like tailgating dragging the start time of the sheet member as in the conventional sled-shaped float, sheet from the initial start The member can be accurately pressed and brought into close contact with the appropriate position in the field scene over the entire width without any displacement or wrinkling .

[0036] Furthermore, since the low LA is a plurality of arranged in the front-rear direction, it is possible to reduce the ground pressure of the correspondingly planting unit, treading action on the seat member rows La
Corresponding to the number of
There is no variation in the degree of close contact with the field scene, and the entire sheet member can be pressed and adhered to the field scene in a uniform state, whereby the laying accuracy of the sheet member can be further improved.

[Brief description of drawings]

1 is a side view showing a working state of the multi-field planting machine equipped with the present invention.

FIG. 2 is a plan view of a multi-field planting machine.

FIG. 3 is a side view of the multi device.

FIG. 4 is an enlarged side view showing the action of the sheet member and the sheet receiver when the planting part is raised.

FIG. 5 is a plan view of a planting part.

FIG. 6 is a perspective view of a main part.

FIG. 7 is a side view of a main part.

FIG. 8 is an exploded perspective view of a hydraulic pressure sensor.

FIG. 9 is a perspective view of a roller float mounting portion and a hydraulic pressure sensing portion.

FIG. 10 is a plan view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Traveling aircraft 21 Planted rod 22 LowLa  24-pin shaft (lowLA branch25 pointsLA branchHolding frame 26 Spindle 27 Bearing 30 Roll support part 41 Sheet receiver 42 Cutter 46 Spare roll 47 Spare roll support part 53 Spare roll support part A Multi transplanter B Fertilizer P Planting part b Sheet member (roll)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazufumi Kawato 260 Hashimoto, Tottori-shi, Tottori Prefecture Agricultural Experiment Station, Tottori Prefecture (72) Inventor, Yonemura 667 Address 667, Isuya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Seigo Fujimoto, 667 Izaiya-cho, Higashi-Izumo-cho, Yazuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. (72) Inventor Yukio Hosoda, 667, Ibariya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. (56) Reference JP-A-2-60511 (JP, A)

Claims (1)

[Claims] 1. A planting part (P) is movably connected to the rear of the traveling machine body (1) so as to cover a field scene in front of the planting part.
The sheet member (b) made of paper is wound into a roll and the supporting portion (3
0) rotatably mounted horizontally and covered with the above-mentioned sheet member (b)
A planting rod (21) for planting transplanted seedlings in a farmed field
In the multi-rice transplanter provided in (P), the above planting section
Below the (P), the paper sheet member (b) is placed in the field scene.
And the planting part up / down automatic control
Left and right rollers (22) before and after sensing the hydraulic pressure of the mechanism
Right bearing arm (27) rotatably and planted part (P)
Of the planted part (P) side
End of swinging frame (25) pivotally supported on
And rotatably support the middle part of the bearing arm (27).
Attached to the rear side of the plurality of rollers (22).
Sheet pressing device of a multi-field planting machine which is open to form a space with unit downward.