JPH03224408A - Transplanter - Google Patents

Abstract

PURPOSE:To stably support a transplanting mechanical part and transplant seedlings to be transplanted with excellent stability by providing a pair of fore-and-aft front wheels rocking with a change in unevenness of ridge furrows in the front and back parts of a wheel frame capable of rocking in the vertical directions with the supporting shaft as the center. CONSTITUTION:Front wheels 88 and 89 are provided in the fore-and-aft parts of a wheel frame 83 capable of rocking in the vertical directions with the supporting shaft 82 as the center. Even if one of the front wheels runs on protruded covering soil (D) of a ridge (A), the other front wheel travels on a ridge furrow (C) with hardly any vertical movement of the supporting shaft 82 and a transplanting mechanical part 6. Thereby, seedlings to be transplanted are properly transplanted in transplanting parts with the transplanting mechanical part 6.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a transplanting machine, for example, for transplanting vegetable seedlings such as lettuce to a transplanting area of a ridge covered with a mulch film. Regarding things that progress while being transplanted.

(Prior Art) Conventionally, this type of transplanting machine is equipped with, for example, a leveling roller for leveling the transplanted portion at the upper part of the ridge and a guide roller that rotates along both left and right sides of the ridge in the front part of the machine body. A structure has been proposed in which running wheels running in ridges are provided on the left and right rear portions of the machine body, and a transplanter for transplanting transplanted seedlings to the transplanting section is provided on the machine body so as to be movable up and down.

Then, with the left and right running wheels placed in the left and right ridges,
The driving rotation of the left and right running wheels causes the machine to run along the ridge, leveling the transplanting area of the ridge with a leveling roller, and moving the transplanter up and down to transplant transplanted seedlings to the transplanting area at predetermined intervals. , and the left and right guide rollers guide the machine in the running direction so that it runs along the ridges.

(Problems to be Solved by the Invention) In the above configuration, the front part of the machine body is supported by the leveling rollers for the transplanted part of the ridge and the left and right guide rollers for the left and right sides of the ridge, so that soil lumps etc. raised on the ridges are If a lump is present, the running wheels ride on the lump, and the load of the machine is concentrated on the front leveling roller and the guide rollers on the left and right sides, and the ridge is broken down by this leveling roller and guide roller. In addition, the unevenness of the ridges causes the running wheels to move up and down and the transplanting section to swing, making it impossible to stably transplant the transplanted seedlings.

In addition, especially when cultivating transplanted seedlings using mulch film, to prevent the mulch film from being torn off by wind, etc., a predetermined covering soil is usually placed on top of the mulch film in the ridges and grooves to hold the film down. Since the soil is placed at intervals, in transplanting work using a transplanter with the above configuration in such fields, the above problem is likely to occur due to the presence of the soil covering, and the pitch of the soil covering If the numbers are different, the transplant pitch of the transplanted seedlings tends to be different, and there is a problem that the transplanted seedlings lack stability because it is difficult to transplant them in an appropriate posture.

It is also conceivable to use a horizontal sensor to detect the levelness and control the posture of the transplanted part by operating an electric cylinder based on the signal from this horizontal sensor.
A problem with this type of structure is that it is complex and expensive.

Therefore, the present invention has been made in view of these problems, and it is possible to support the transplantation mechanism section without being greatly affected by changes in the unevenness of the ridges, thereby stably supporting the transplantation mechanism section. To provide a transplanter capable of stably transplanting transplanted seedlings, capable of preventing the ridges from collapsing due to leveling rollers and guide rollers, and having a simple and inexpensive structure.

[Structure of the invention]

(Means for Solving the Problem) The transplanting machine of the invention according to claim 1 includes a main body frame having a transplanting mechanism section for transplanting transplanted seedlings on the front side and a running wheel running in a ridge on the rear side. , a wheel frame located on the left and right sides of the transplantation mechanism section of the main body frame and mounted on a shaft so as to be swingable in the vertical direction about a support shaft; It is equipped with a pair of front and rear wheels that are mounted on an axle and run along ridges.

The transplanting machine of the invention of claim 2 is the device of claim 1, comprising:
The left and right support shafts on which the wheel frame is mounted are provided so that their positions can be adjusted in the vertical direction.

(Function) In the transplanting machine according to claim 1, the transplanter is moved along the ridge by the front left and right front wheels and the rear left and right running wheels that run on the ridge groove, and the transplanting mechanism section moves the transplanted part of the ridge toward the transplanted part. The transplanted seedlings are transplanted one after another.

At this time, when the left and right front wheels that support the transplanting mechanism come to the raised part of the ridge or the covering soil (embankment) for holding down the mulch film, the front swinging wheels of the front wheels first However, the rear swinging wheel in the front wheel continues to run on areas where there is no ridge or soil covering, and the front swinging wheel rides over the ridge or soil covering where there is no such area. When the vehicle runs, the rear swinging wheels run up against a raised part or covered soil, and at this time, the wheel frame on which the front and rear swinging wheels are pivoted swings in the vertical direction about the support shaft. The front and rear rocking wheels can ride over the raised area and soil covering, so the support shaft and the transplanting mechanism hardly move up and down (they are supported by the front and rear rocking wheels and move stably, and this transplanting mechanism allows The transplanted seedlings are properly transplanted one after another into the transplanting area.In addition, even if the rear running wheels run onto a raised area or covered soil, the front transplanting mechanism is supported by the left and right front wheels, so this transplanting mechanism will not work properly. The section progresses stably without being affected by it.

In addition, in the transplanting machine of claim 2, by adjusting the setting positions of the left and right support shafts vertically or horizontally differentially, the transplanting mechanism part can be adapted to the condition of the ridges in the field so that the transplanted seedlings can be transplanted appropriately. can be done.

(Example) Hereinafter, one example of the present invention will be described based on the accompanying drawings.

In the figure, reference numeral 1 denotes a transplanter, and in this transplanter 1, running wheels 4 are rotatably mounted on the rear left and right parts of a main body frame 2 via an axle 3, and these left and right running wheels 4 are connected to the main body. It is rotatably coupled to an engine 5 mounted on the rear upper part of the frame 2 via a coupling medium (not shown). Further, a transplant mechanism section 6 is provided at the upper front side of the main body frame 2,
The transplantation mechanism section 6 is rotatably connected to the left and right running wheels 4 via a rotational connection means (not shown) in the left and right directions. The transplantation mechanism section 6 is provided with a support frame 7 located at the upper front side of the main body frame 2, and a turntable 9 is rotatably provided on the upper part of the support frame 7 via a rotation shaft 8. A large number of seedling containers 10 are arranged and fixed on the outer peripheral edge of the turntable 9 at predetermined intervals.

Further, a transplanter 12 is attached to the front side of the support frame 7 via a vertical movement mechanism 11 so as to be rotatable in the vertical direction, and a link mechanism 14 is attached to the front part of the frame 13 of the transplanter 12.
Thermal perforations 15 are connected to each other via.

The turntable 9 is interlocked with the engine 5 via an interlocking medium (not shown) so as to be rotated intermittently at predetermined intervals, and the thermally perforated body 1
5 is intermittently moved up and down relative to the transplantation portion at predetermined intervals via the engine 5, a linking medium (not shown), and the up-and-down movement mechanism 11.

Next, an operating handle 16 is integrally provided projecting from the rear left and right parts to the rear upper part of the main body frame 2, and a support frame 18 is fixed horizontally between the upper parts of the left and right pillars 17 of the operating handle 16. A bracket 17 is fixed to the side part, and the base of a fixed arm 20 formed to extend in the front-rear direction is fixed to this bracket 19, and this fixed arm 20 has a space between it and the column 17 of the operating handle 16. It is fixedly supported horizontally by an intervening stay 21. A seedling stand 23 is horizontally fixed to the outer side of the fixed arm 20 near the base end via a support 22, and a seedling stand 23 is fixed horizontally to the outer side near the base end of the fixed arm 20 via a vertical shaft 24 to the near end of the fixed arm 20. The base end of the movable arm 25 is pivoted so as to be horizontally rotatable, and the central part of a horizontally long rectangular movable seedling stand 27 is attached to the distal end of the movable arm 25 via a support shaft 26 for horizontal rotation. movably mounted.

Next, a swinging arm 29 extending rearward via a support shaft 28 is supported at the left and right lower portions near the front end of the transplantation mechanism section 6 so as to be rotatable in the vertical direction. A pressure ring 30 for suppressing the upper surface of the transplanted ridge portion is rotatably mounted between the ends, and this pressure ring 30 is always urged downward.

Further, a connecting plate 31 is fixed to the left and right lower portions of the front end of the transplantation mechanism section 6, and the left and right base ends of a U-shaped support frame 33 are vertically rotatable to the left and right connecting plates 31 via a support shaft 32. This support frame 33 is supported by a vertical movement mechanism 35 provided between the fixed frame 34 of the transplantation mechanism section 6 so as to be adjustable in the vertical direction. Also, a mounting plate 3 is attached to the front frame 36 between the tips of the support frame 33.
7 are provided vertically protrudingly, and a vertical shaft 38 is attached to the upper and lower mounting plates 37.
A leveling roller 41 for leveling the upper surface of the transplanted portion is rotatably supported via a roller shaft 40 on a U-shaped support frame 39 which is rotatably attached via a roller shaft 40 . Coil springs 42 are stretched between the left and right parts of the support frame 33 and the left and right parts of the support frame 39, and the left and right coil springs 42 move the leveling roller 41 in the straight direction via the support frame 39. It's being held.

Further, the base end portions of a swinging arm 43 are pivotally attached to both ends of the roller shaft 40 of the earth leveling roller 41 so as to be swingable in the vertical direction, and the bearing pieces 44 at the distal ends of the left and right swinging arms 43 are close to each other. A middle part of a roller shaft 45 bent into a mountain shape is inserted between the two, and a guide roller 47 that engages with the left and right sides of the ridge is attached to the left and right inclined parts 46 of the roller shaft 45.
is rotatably mounted on an axis.

Next, a connecting frame 48 shaped as viewed from the side is fixed to the front frame 36 of the support frame 33, and this connecting frame 48 is fixed to the front frame 36 of the support frame 33.
Locking bins 50 are integrally erected in parallel on the left and right upper portions of the front side portion of the horizontal plate portion 49 of 8.

Furthermore, connecting pieces 51 are provided protruding from the upper rear side of the horizontal plate portion 49 of the connecting frame 48, and these left and right connecting pieces 51
In between, the lower end of an operating knob 52 which also serves as a lock bar is rotatably supported via a support shaft 53 and a spring (not shown).
The vertical portion 54 has an operating portion 55 projecting from the upper side thereof to the side.

Next, a hollow cylindrical bearing body 57 penetrating in the front-rear direction is horizontally fixed to the upper part of the vertical plate portion 56 of the connection frame 48, and a rotation shaft 59 of the suspension frame 58 is attached to this bearing body 57. The shaft support 61 at the lower end of the operating body 60 is inserted into the tip of the rotation shaft 59, and the stopper pin 61 and the tip of the rotation shaft 59 are connected to each other.
2, and a retaining nut 64 is fastened to the tip of the rotating shaft 59 via a washer 63.

The operating body 60 is formed to extend in the vertical direction, and a guide groove 65 extending through the vertical portion 54 of the operating handle 52 is formed in the left-right direction at the upper end thereof, and one side opening in the front-rear direction of the guide groove is formed. A large number of locking recesses 66 for selectively locking and unlatching the vertical portion 54 are continuously formed on the edge, and a handle 67 is protruded from one side of the operating body 60. By rotating the operating body 60 into and out of the vertical portion 54 of the operating handle 52 through the locking recess 66, the suspension frame 58 is rotated in the left-right direction via the rotation shaft 59. The settings are set automatically.

A movable support frame 70 is rotatably supported between the front ends of the left and right side frame portions 68 of the suspension frame 58 via a horizontal shaft 69, and a knob 71 is provided in the middle of the movable support frame 70. An adjusting screw 72 is rotatably inserted and supported, and a movable frame 74 is supported between the rear sides of the left and right side frame portions 68 via a rotation center shaft 73 via a pair of left and right suspension pieces 75. It is suspended so that it can rotate freely. The movable frame 74 is formed in a substantially U-shape, and the pair of left and right hanging pieces 75 are integrally erected on both upper sides of a base frame 76 extending in the left-right direction. An interlocking frame 77 is integrally protruded from the front middle part of the frame 76 , and a movable frame 79 is rotatably supported on this interlocking frame 77 via a horizontal shaft 78 .
The adjusting screw 72 is inserted and supported in the screw hole 80 of No. 9 so as to be freely adjustable forward and backward. Further, support frames 81 extending toward the left and right sides of the transplantation mechanism section 6 are integrally connected to both ends of the base frame 76, and the outer portions of the left and right support frames 81 near the rear portions are connected to the A support shaft 82 is provided horizontally and integrally at the lower left and right portions of the transplantation mechanism section 6, and a pair of left and right suspension pieces 84 of a wheel frame 83 are attached to the left and right support shafts 82 so as to be able to swing freely in the vertical direction. It is mounted on a shaft. This left and right wheel frame 8
3 has a pair of left and right support rods 85 extending in the front-rear direction,
A board 86 is fixed between the intermediate portions of the pair of left and right support rods 85, and the pair of left and right hanging pieces 84 are integrally erected on the upper part of this board 86, and between the front ends of the pair of left and right support rods 85. Front and rear swing wheels 88 and 89 as front wheels are rotatably mounted between the rear end portions via axles 87, respectively. Thus, the pair of left and right hanging pieces 84 are erected at intermediate portions of the front and rear swing wheels 88 and 89, and
It is designed to be swung up and down with 2 as the center of rotation. Further, a stopper 90 is protrudingly provided on the outer side of the rear end of the left and right supporting frames 81 to prevent rotation of the inner side of the pair of left and right hanging pieces 84.

Further, a chain 91 for suspending the guide roller 47 is stretched between the tip of the interlocking frame 77 of the movable frame 74 and the tip of the swing arm 43.

Note that 92 in the figure is a locking pin protruding from the rear end of the main body frame 2, and this locking pin 92 and the locking pin 5
0, a balance weight 93 can be attached or detached as necessary.

Next, the operation of the above configuration will be explained.

When the vertical movement mechanism 35 is activated in accordance with the height of the ridge A covered with the mulch film F in the field, the vertical movement mechanism 35 moves the support frame 33 up and down around the support shaft 32 to a predetermined position. Lock this rotation. As a result, the leveling roller 41 is set at a predetermined height for leveling the transplanted portion B of the ridge A covered with the mulch film F, and the left and right guide rollers 47 are set at a predetermined height to level the transplanted portion B of the ridge A covered with the mulch film F. set to height.

When the adjusting screw 72 is rotated by grasping the knob 71, the screw portion and the screw hole of the adjusting screw 72 are rotated in the direction in which the adjusting screw 72 is rotated. The interlocking frame 77 is interlocked and rotated in the separating or approaching direction via the interlocking frame 77, and the movable frame 7 having the interlocking frame 77
4 is moved up and down about the rotation center axis 73 via the pair of hanging pieces 75, and this movable frame 7
The left and right support shafts 82 of the left and right support frames 81 of No. 4 are moved up and down, and the left and right support shafts 82 are set at predetermined positions, and the vertical movement of the movable frame 74 is locked. As a result, the left and right wheel frames 83 suspended from the left and right support shafts 82 via the hanging pieces 84 are positioned, and the front wheels of the left and right wheel frames 83, that is, the left and right front and rear swing wheels 88 .89 is set at a predetermined height position where the ridge C covered with the mulch film F runs.

The transplantation mechanism section 6 is supported at a predetermined height position by the left, right, front and rear swing wheels 88 and 89.

In addition, when the field is sloped, when the operating part 55 is grasped and the operating handle 52 is rotated about the support shaft 53 at the lower end, this vertical part 54 moves into the locking recess 66 of the operating body 60. When the operating body 60 is detached from the operating handle 52 and rotated in the left-right direction within the guide groove 65, the integral rotating shaft 59 engages with the bearing body of the connecting frame 48 via the stopper pin 62. The suspension frame 5 is rotated relative to the rotation axis 57 and has the rotation axis 59.
8 is rotated to one side in the left-right direction according to the rotation angle of the operating body 60. Further, when this suspension frame 58 is rotated, the movable frame 74 is also rotated in the same direction in conjunction with this, and the left and right wheel frames 83
The swing wheels 88 and 89 on the left, right, front and rear sides of the machine are moved up and down. Then, the vertical portion 54 of the operating handle 52 is engaged and locked in the locking recess 66 at a predetermined position of the operating body 60, and the operating body 60 is
Lock G rotation. As a result, the left and right wheel frames 83 are positioned with a difference in height between the left and right, and
The front wheels 88, 89 of the left and right wheel frames 83, that is, the left and right front and rear swing wheels 88, 89 are set at a predetermined height position so as to run on the left and right ridges C which are covered with the multi-film F and are inclined with a difference in height. The transplantation mechanism section 6 is supported at a predetermined height position by the left, right, front and rear swing wheels 88 and 89.

Next, with the left and right front and rear swinging wheels 88 and 89 and the left and right running wheels 4 arranged on the left and right ridge grooves C of the ridge A covered with the multi-film F, the engine 5 of the transplanter 1 is driven. When the left and right running wheels 4 are rotationally driven, the transplanter 1
is advanced along the ridge A while straddling the ridge A by the left and right front and rear swinging wheels 88 and 89 and the left and right running wheels 4,
At this time, the left and right guide rollers 47 are engaged with the left and right side surfaces of the ridge A and are rotated, and the transplanting machine 1 is moved along the ridge A by the running direction control action of the left and right guide rollers 47. In addition, the leveling roller 41 rotates and advances while flattening the transplanted portion of the upper part of the ridge A through the mulch film F with a predetermined ground contact pressure.

Further, as the transplanter 1 advances, the transplanter 12 and the thermal perforation body 15 are moved up and down by the operation of the vertical movement mechanism 11, and the turntable 9 is rotated by the rotation of the rotation shaft 8. The transplanter 12 receives the transplanted seedlings from the seedling container 10 of the turntable 9, and also receives the transplanted seedlings.
The thermal perforation body 15 sequentially transplants the seedlings into the mulch film F in preparation for transplanting the next transplanted seedlings from within the transplant hole of the mulch film F that has been previously drilled in the previous step and into the transplanting area of the ridge A. Graft holes are sequentially thermally drilled. Further, the turntable 9 is intermittently rotated in accordance with the vertical movement of the transplanter 12, and the transplanted seedlings in each seedling storage body 10 are received and transplanted in the transplanter 12 one after another. Transplanted seedlings are manually taken out from the seedling containers of the seedling trays 33 and 27 and sequentially supplied into each empty seedling container 10 which has fallen and does not contain any transplanted seedlings, and is therefore sequentially supplied with transplanted seedlings by rotation of the turntable 9. Transplanted seedlings are sequentially supplied into the container 12 from each of the seedling containers 10.

Next, during the transplanting work of the transplanted seedlings, the left and right front and rear swinging wheels 88 and 89 supporting the transplanting mechanism section 6 press the mulch film F in the ridge C and raise the covered soil (embankment) D to a predetermined size. When the front swing wheel 88 first runs over the soil cover, the rear swing wheel 89 continues to run in the ridge C where there is no soil cover, and the front swing wheel 88 runs on the soil cover.
If you go over the covered soil and drive without these,
Conversely, the rear swinging wheel 89 rides on the covering soil, and at this time, the wheel frame 83 on which the front and rear swinging wheels 88 and 89 are pivoted swings vertically about the support shaft 82. The front and rear rocking wheels 88 and 89 can move and cover the soil, so the support shaft 82 and the transplanting mechanism section 6 are supported by the front and rear rocking wheels 88 and 89 and are stabilized without moving up and down. The transplanting mechanism section 6 properly transplants the transplanted seedlings to the transplanting section one after another. Furthermore, even if the rear running wheel 4 runs onto the covering soil, the front transplantation mechanism section 6 is supported by the right and left front and rear swing wheels 88°89, so the transplantation mechanism section 6 will not be affected by it. The progress is stable.

In addition, if the covering soil for the mulch film F is automatically installed at predetermined intervals by the covering soil discharging mechanism, the interval between the left and right front and rear rocking wheels 88°89 is approximately the pitch of the covering soil. It is best to set it at intervals of about half. Furthermore, even if the pitch of the covering soil is different or there are irregularities in the middle of the ridges and grooves C, the vertical change of the support shaft 82 is approximately half the amount of change of the swinging wheels 88 and 89, so the overall stable transplanting work can be achieved. It is done.

Next, in the embodiment, the left, right, front and rear swing wheels 88, 89
described the case where the car travels on the covered soil on the furrows C covered with the mulch film F for mulch cultivation, but it is not limited to this, but it is also possible to drive on the raised parts and unevenness on the ridges and furrows of alley cultivation without using the mulch film F. Even when traveling in a section, the swinging wheels 88 and 89 on the left, right, front and rear sides operate in the same manner as in the previous embodiment to ensure stable progress and stable transplanting work.

〔Effect of the invention〕

According to the invention of claim 1, since a pair of front and rear wheels are provided that swing in accordance with changes in the unevenness of the ridges, the front wheels prevent the transplantation mechanism from being greatly affected by changes in the unevenness of the ridges. As a result, transplanted seedlings can be stably and sequentially transplanted using the transplanting mechanism, the ridges can be reliably prevented from being crushed by the leveling roller and guide roller, and the front The wheels are installed at the front and rear of the wheel frame that can swing vertically around the support shaft, so the structure is simple and can be provided at a lower cost than those using a detection control mechanism consisting of a horizontal sensor and an electric cylinder. I can do it.

According to the invention of claim 2, the left and right support shafts on which the wheel frame having the front wheels is mounted are vertically adjustable in position, so that the transplantation mechanism part can be adjusted in relation to the left and right front wheels running on the ridges. can be set at an appropriate relative position with respect to the transplanting part of the ridge, and by differentially adjusting the left and right support shafts, it is possible to fully cope with transplanting work on sloped land.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view of the transplanting machine, Fig. 2 is a plan view taken along line a-a of the same as above, and Fig. 3 is a support mechanism supporting the transplanting mechanism part of the above. FIG. 1. Transplant machine, 2. Main frame, 4. Running wheel, 6
...Transplantation mechanism part, 82.. Support shaft, 83.. Wheel frame, 88.89.. Front wheel.

Claims (2)

[Claims] (1) A main body frame provided with a transplanting mechanism section for transplanting transplanted seedlings on the front side and a running wheel running in a ridge on the rear side, and a main body frame located on the left and right sides of the transplanting mechanism section of this main body frame. A wheel frame is mounted on a shaft so as to be swingable in the vertical direction about a support shaft, and a pair of front and rear wheels are mounted on a shaft on the front and rear of the left and right wheel frames so as to be rotatable and run on a ridge. A transplant machine characterized by the following: (2) The transplanter according to claim 1, wherein the left and right support shafts on which the wheel frame is mounted are provided such that their positions can be freely adjusted in the vertical direction.