JP2005058072A - Sheet holding device of multi-transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet holding device for preventing clipped miscellaneous things from being caught on base edges through slowly inclining backward the base edges of a rotary shaft side of a sheet holder. <P>SOLUTION: A multi-rice planting machine 10 which continuously backward draws out a sheet 30 with work motion and transplants seeds from the top of the sheet covering a field surface has a roll holding part 36 horizontally holding the roll-like sheet 30 covering the field surface and a sheet holder 38 extended from a rotary shaft 42 placed below the roll holding part 36 to the back side of the machine and receiving and holding the sheet 30 from the lower part. The rotary shaft 42 is arranged in front of the roll shaft core of the sheet 30 held in the roll holding part 36. As a result of this, the base edges of the rotary shaft side of the sheet holder are slowly inclined backward to prevent clipped miscellaneous things from being caught on the base edges. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sheet holding device for a multi-transplanter of a type in which a roll-like sheet placed on a roll storage section of a transplanting section is fed to cover a field scene and seedlings are transplanted from the coated sheet. .

  In rice cultivation in paddy fields, the field scene is covered with a sheet of vinyl film, etc., and only seedlings are headed upward from the sheet surface to prevent weeds from growing and prevent environmental pollution by herbicides, Multi-cultivation has been carried out with the aim of simplifying the cultivation management after transplanting and saving labor. Moreover, not only in rice cultivation, but also in the cultivation of fresh vegetables such as lettuce, Chinese cabbage, cabbage, etc. in field cultivation, in order to improve the heat retention of the field and improve the germination and establishment of seeds, to prevent the generation of weeds, Multi-cultivation in which the soil surface is covered with a sheet is widespread.

  For example, a multi-planting machine that covers a field scene with a sheet supports a transplanting part so that the transplanting part can be moved up and down at the rear of a traveling machine body, and feeds a roll-like sheet laid across the roll storage part of the transplanting part to the rear. The coated sheet is rolled from above with a roller float while the seedling is transplanted from above the coated sheet. And, during the transplanting work in the field, when one travel is completed and the next process is started, when the traveling aircraft is turned on a headland or the like, it is necessary to cut the sheet and separate it from the aircraft each time. The sheet part covering the farm scene is cut with a dedicated cutter. In addition, when the traveling body is rotated by raising the transplanted part after cutting the sheet, a sheet holder for supporting the rear end side from below is also provided to support the rear end side of the sheet feeding direction ( For example, see Patent Document 1).

Japanese Patent No. 2816519 (page 3, FIGS. 4 to 5)

  In the conventional multi-implanter, the rotation fulcrum, which is the base point for rotating the sheet holder up and down, is located behind the roll storage unit, and the distance between the roll storage unit and the roller float is structurally As the distance is shorter, the shape of the seat holder must be drooped downward from the rear of the rotation fulcrum, and extend rearward substantially horizontally from the middle of the droop. did not become. However, if the drooping portion of the seat holder is steeply inclined, it is easy for a foreign object to be caught in the drooping portion as the transplanting travels, and a large amount of the caught foreign matter accumulates, which adversely affects a smooth transplanting operation. There was a risk of effects.

  The present invention has been made to solve such a problem, and an object of the present invention is to gently incline the base end portion of the seat holder on the pivot side toward the rear so that the object is sandwiched between the base end portions. It is an object of the present invention to provide a sheet holding device for a multi-implanter that can prevent the sheet from being caught.

In order to achieve the above-mentioned object, the invention according to claim 1 includes a transplant part (22) supported by the traveling machine body (15) so as to be movable up and down, and a roll shape provided on the transplant part (22) and covering a field scene. A roll storage section (36) for horizontally storing the sheet (30), and continuously feeding the sheet (30) rearward as the work travels, so that seedlings are collected from above the sheet covering the field scene. In the transplanter (10) to be transplanted,
A sheet holder (38) that extends rearward from the pivot shaft (42) provided at a lower portion of the roll storage section (36) and receives and holds the sheet (30) from below;
The pivot shaft (42) is arranged in front of the roll axis of the sheet (30) stored in the roll storage portion (36).

  The invention according to claim 2 is the sheet holding device of the multi-transplanter according to claim 1, wherein a fertilizer pipe (53) for discharging fertilizer to a farm is provided below the roll storage part (36), and the fertilizer pipe (53) is pivotally supported integrally with the seat holder (38) by the pivot shaft (42).

  In addition, the code | symbol in the parenthesis mentioned above is shown in order to refer drawings, Comprising: This invention is not limited at all.

  According to the invention according to claim 1, since the pivot shaft provided in the lower part of the roll storage portion is disposed forward of the roll axis of the roll-shaped sheet stored in the roll storage portion, The base end portion of the seat holder that extends from the pivot shaft to the rear of the machine body can be gently inclined rearward, so that it is possible to prevent a foreign object from being caught by the base end portion.

  According to the second aspect of the present invention, the fertilizer pipe is pivotally supported integrally with the sheet holder by the pivot shaft so that the sheet is caught by the fertilizer pipe, particularly when a roll-shaped sheet is replenished. Can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1 to 3 show a six-row riding rice transplanter (multi-rice transplanter) equipped with a multi-device. The multi-rice transplanter 10 has a traveling machine body 15 supported by a front wheel 11 and a rear wheel 12. The traveling machine body 15 includes an engine 14 in a front bonnet 13, a seat seat 16 and a steering wheel 17 in a rear part. A driver's seat 18 having the above and the like is provided, and a planting portion 22 is connected to the rear of the traveling machine body 15 through an elevating link 21 including an upper link 19 and a lower link 20 so as to be movable up and down.

  The planting part 22 includes a planting part frame 23 extending in the left-right direction of the machine body, a plurality of planting cases 24 extending rearward from the planting part frame 23, and a rear end of the planting case 24. A rotary case 25 having a planting rod 26 provided in the section, and a seedling stand 27 supported above the planting case 24 so as to be movable left and right. The planting portion 22 is supported so as to be able to follow the field surface and roll freely regardless of the left-right inclination of the traveling machine body 15. A sheet holding device 35 is integrally attached to the planting portion frame 23 below the planting portion frame 23, and the sheet holding device 35 is a roll-shaped sheet 30 between the left and right holders 37. (See FIG. 3) a roll storage portion 36 for horizontally storing, a roller float 28 composed of two cylindrical bodies suspended so as to be swingable up and down, and a sheet pressure suspension suspended behind the roller float 28 And a roller 29.

  The roll storage portion 36 has a cylindrical portion that stores and holds the sheet 30 wound in a roll shape so that the sheet 30 can be taken in and out from the side, and is mounted on the lower front portion of the planting portion 22. The roll storage portion 36 is rotatably supported at the lower portion thereof between the left and right holders 37, and is integrally extended with the pivot shaft 42 at the rear side of the machine body. And a sheet holder 38 for receiving and holding the sheet.

  The sheet holder 38 receives and holds the sheet 30 from below when the planting portion 22 is raised, and the base end side of the sheet holder 38 is fixed to a pivot shaft 42. The sheet holder 38 is made of a rod-like or plate-like body that has a substantially inverted shape when viewed from the side, and a plurality of sheet holders 38 are arranged with appropriate intervals in the left-right direction of the machine body (planting width direction). Further, the sheet holder 38 is submerged in the soil during the planting operation, and seedlings are planted from the top of the sheet 30, so that the seat holder 38 is set above the lowest point of the rotation trajectory of the tip of the planting rod 26. Has been.

  The left and right sides of the traveling machine body 15 are provided with spare roll bases 60 for storing the replenishment sheets 30, and the left and right spare roll bases 60 are connected by a connecting stay 61. In addition, the planting unit 22 is provided with a stand 62 that serves as a table to be placed on the ground when the planting unit 22 is lowered.

  In the present embodiment, as shown in FIG. 4, the pivot shaft 42 is arranged at a position substantially immediately below the roll axis O of the roll-shaped sheet 30 stored in the roll storage portion 36 or in front of it. doing. As a result, even if the distance between the roll storage portion 36 and the roller float 28 is limited, the inclined base portion 38a in which the rotation base end portion of the sheet holder 38 is inclined to the lower rear portion more gently than in the past. It is possible to prevent the foreign matter from being caught on the inclined portion 38a. That is, if the pivot shaft 42 is disposed rearward of the roll axis O and the inclination angle of the inclined portion 38a is made steep, the foreign matter caught on the inclined portion 38a will not come off. However, if the inclination angle of the inclined portion 38a is gradual as in the present embodiment, the foreign matter caught on the inclined portion 38a is It doesn't slip immediately and get caught.

  In addition, the seat holder 38 has an action posture (the posture in FIG. 4) that holds a substantially horizontal posture with the pivot shaft 42 as a fulcrum by operation of the lever 40, and an inclined posture (the posture in FIG. 5) inclined downward. It is configured to be freely switchable. And according to this embodiment, since the feeding part of the sheet 30 is in the rear part of the roll storage part 36 and the pivot shaft 42 of the sheet holder 38 is in the front part of the roll storage part 36, the vicinity of the feeding part is greatly increased. The structure can be opened and the sheet 30 can be easily set.

  Further, a bracket 49 having a long hole 49a and a substantially rectangular bracket 50 are integrally fixed to the pivot shaft 42, and an elongated plate to which the seat holder 38 is fixed by welding. 51 is integrally fixed by two bolts through a bolt hole 52. In addition, a plate 54 is welded and fixed to a fertilizer nozzle (fertilizer pipe) 53 that discharges fertilizer to the field, and the plate 54 is fastened and fixed to the bracket 50 via the bolt holes 52. Thereby, the sheet holder 38 and the fertilizer nozzle 53 are integrally fixed to the pivot shaft 42, and the sheet holder 38 and the fertilizer nozzle 53 are integrally rotatable.

  On the other hand, as shown in FIG. 6, the base end portion of the lever 40 is fixed to a shaft 41 that is rotatably mounted between the left and right holders 37 of the roll storage portion 36, and is integrally fixed to the shaft 41. One end of a rod 44 that can be advanced and retracted is connected to the other end of the arm 43 by a pin. The other end of the rod 44 elastically biases a U-shaped frame body 46 via a compression spring 45, and a switching pin that protrudes in a direction substantially orthogonal to the rod 44 is provided on the frame body 46. 47 is fixed. The switching pin 47 is inserted into the elongated hole 49a, and the lowering or raising of the seat holder 38 is restricted by the elastic force of the compression spring 45 exceeding the fulcrum in the acting posture and the inclined posture of the seat holder 38. ing.

  The roll-shaped sheet 30 is replaced by opening one of the left and right open / close lids (not shown) adjacent to the left and right holders 37 with the planting portion 22 raised. Moreover, although the sheet | seat 30 may use the normal resin-type film currently used for multi cultivation, in this embodiment, it is a recycled paper (for example, what melt | dissolved cardboard etc. in water and added starch paste, After 40 to 50 days, it dissolves in the mud in the field).

  As shown in FIGS. 1 and 2, the roller float 28 rolls a sheet 30 covered with a field scene from above, and is placed horizontally at the tip of a support frame 31 pivotally supported by a planting case 24. A bearing case 33 pivotally supported via a shaft 32 is rotatably supported via a shaft 34. Further, the sheet cutting cutter 56 is movable up and down and is attached to the rear end of the arm 57 over the entire width of the left and right laying width of the seat 30, and this cutter 56 is provided on the driver's seat 18 side (not shown). The operation lever is operated to rotate downward about the pivot, and the sheet 30 covering the farm scene is cut while being grounded.

  Next, the operation will be described.

The case where seedlings are planted on the rice field will be described as an example. Prior to planting work, the rear end portion of the sheet 30 is pulled backward from the roll storage portion 36, and the pulled sheet 30 is connected to the roller float 28 and the pressure roller 29. In a state of being sandwiched between the sheet holder 38, the rear end side of the sheet 30 is fixed to the paddy surface and the planting operation is started. At this time, the sheet holder 38 sinks a predetermined amount in the mud, and the sheet 30 is grounded to the upper surface of the paddy surface, and the grounded sheet 30 is pressed from above by the roller float 28 and the pressure reducing roller 29. Next, as the traveling machine body 15 travels, the sheet 30 is continuously fed out from the roll storage unit 36, and the fed sheet 30 is pressed by the roller float 28 and the pressure-reducing roller 29 and is brought into close contact with the surface of the roll. A seedling is planted from above the sheet 30 by the planting rod 26. In this case, the pivot shaft 42 of the sheet holder 38 is disposed substantially directly below or in front of the roll axis O of the roll-shaped sheet 30 accommodated in the roll storage section 36. An inclined portion 38a on the base end side of the seat holder 38 extending from the rear side of the machine body is gently inclined rearward. Therefore, the structure has a structure in which foreign objects are not easily caught on the inclined portion 38a, and even if it is caught, the structure is easily removed.

  Further, when the traveling machine body 15 is turned on a headland or the like, the seat 30 that is laid by rotating the cutter 56 downward by operating a lever (not shown) at the rear position of the planting portion 22 is the full width of the laying width. To cut. Thus, after cutting the sheet 30, the planting portion 22 can be raised and the traveling machine body 15 can be turned. Although the sheet holder 38 is also raised integrally with the planting portion 22, the rear end side of the sheet 30 is received and supported substantially horizontally by the sheet holder 38.

  After turning the traveling machine body 15, the planting part 22 is lowered again to continue the planting operation. However, when the planting part 22 is grounded, the seat holder 38 returns to the work position submerged in the mud. At the same time, the rear end side of the sheet 30 is pressed against the surface from above by the roller float 28, so that the multi-operation and the planting operation can be continued smoothly.

  When the sheet is replenished, the sheet holder 38 is replenished with a new roll-shaped sheet 30 to the roll storage unit 36 in an inclined posture (posture in FIG. 5) inclined downward about the pivot shaft 42. In the embodiment, since the feeding portion of the sheet 30 is in the rear portion of the roll storage portion 36 and the pivot shaft 42 of the sheet holder 38 is in the front portion, the vicinity of the feeding portion can be greatly opened, and the sheet 30 is set. The structure is easy to work. Further, since the fertilizer nozzle 53 is pivotally supported integrally with the sheet holder 38 by the pivot shaft 42, the sheet 30 is caught by the fertilizer nozzle 53 particularly when a roll-shaped sheet is replenished. Will be prevented.

It is a side view of a multi rice transplanter. It is a figure which shows the state which raised the planting part same as the above. It is a top view same as the above. It is a side view of a sheet holding device. It is a side view of the sheet holding device in a state where the sheet holder is lowered. It is a principal part top view of a roll accommodating part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Multi rice transplanter 15 Traveling machine body 22 Planting part 30 Sheet 35 Sheet holding device 36 Roll storage part 38 Sheet holder 38a Inclined part 42 Pivoting shaft 53 Fertilization nozzle (fertilization pipe)

Claims (2)

A transplant unit supported by the traveling machine body so as to be movable up and down; and a roll storage unit configured to horizontally store a roll-shaped sheet that is provided in the transplant unit and covers a field scene. In a multi-planting machine that transplants seedlings from the top of the sheet that is extended backward and covers the field scene,
A sheet holder that extends from the pivot shaft provided in the lower part of the roll storage part to the rear of the machine body and receives and holds the sheet from below;
The pivot shaft is disposed in front of the roll axis of the sheet housed in the roll housing portion,
A sheet holding device for a multi-transplanter. A fertilizer pipe for discharging fertilizer to a farm is provided below the roll storage part, and the fertilizer pipe is pivotally supported integrally with the sheet holder by the pivot shaft.
The sheet holding device for a multi-implanter according to claim 1.

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