JPH0824455B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of use) The present invention relates to a transplanter, for example, a plant for transplanting vegetables such as lettuce to a transplant portion of a ridge covered with mulch film. Regarding what progresses while transplanting.

(Prior Art) Conventionally, as a transplanter of this type, for example, a front part of the machine body is provided with a leveling roller that grounds an upper transplant part of the ridge and guide rollers that rotate along both left and right sides of the ridge, There has been proposed a structure in which running wheels that run in a furrow are provided on the left and right rear portions of a machine body, and a transplanter for transplanting transplanted seedlings is vertically movable in the transplantation section of the machine body.

Then, with the left and right running wheels arranged in the left and right ridge grooves, the aircraft is driven along the ridges by the driving rotation of the left and right running wheels, and the ridge transplant part is leveled by the leveling rollers, and the transplanter is set. By moving up and down, transplanted seedlings are transplanted at a predetermined interval in the transplanting section, and the left and right guide rollers guide the traveling direction so that the machine body travels along the ridges.

(Problems to be solved by the invention) In the above-mentioned configuration, since the front part of the machine body is supported by the leveling roller for the transplant part of the ridge and the left and right guide rollers for both left and right side parts of the ridge, such as a lump of ridge raised on the ridge groove. When there is a lump, the traveling wheels ride on this lump, and the load of the machine is concentrated on the front leveling roller and the left and right guide rollers, and the ridge is pushed down by the leveling roller and the guide roller. In addition, the running wheels move up and down due to the unevenness of the furrows,
Since the transplanting part is swung, there is a problem that stable transplantation of transplanted seedlings cannot be performed.

Further, in particular, when multi-cultivating transplanted seedlings using a mulch film, so that the mulch film is not peeled off by wind or the like, usually, a predetermined soil cover for film pressing on the ridge multi-film. Since they are placed at every interval, in the transplanting work by the transplanter having the above-mentioned configuration in such a field, the presence of the covering soil inevitably causes the problem, and the pitch of the covering soil. If they are different from each other, the transplanting pitch of transplanted seedlings is also likely to be different, and there is a problem in that stability is lacking because it is difficult to transplant the transplanted surface in a proper posture.

It is also possible to use a horizontal sensor to detect the levelness, and to operate the electric cylinder by the signal of this horizontal sensor to control the posture of the transplantation part, but this type of structure is complicated and expensive. There is a problem that becomes.

Therefore, the present invention has been made in view of such problems, it is possible to support the transplantation mechanism portion without being significantly affected by the unevenness of the furrows, thereby,
The purpose of the present invention is to provide a transplanter with a stable structure, which can support transplanted seedlings with good stability, prevent ridges from collapsing with leveling rollers and guide rollers, and has a simple structure and is inexpensive. It is what

[Structure of Invention]

(Means for Solving the Problem) The transplanting machine according to the invention of claim 1 is a main body frame provided with a transplantation mechanism portion for transplanting transplanted seedlings on a front side portion and a traveling wheel for traveling in a furrow on a rear side portion. , A wheel frame which is positioned on the left and right portions of the transplantation mechanism portion of the main body frame and is swingably mounted in a vertical direction about a support shaft as a rotation center; and on the front and rear portions of the left and right wheel frames. It is provided with a pair of front and rear front wheels that are axially mounted and travel in a groove.

A transplanter according to a second aspect of the present invention is the transplantation device according to the first aspect, wherein the left and right support shafts around which the wheel frame is mounted are provided so that the vertical position can be adjusted.

(Operation) In the transplanting machine according to claim 1, the front left and right front wheels and the rear left and right traveling wheels traveling on the ridges advance along the ridges, and the transplanting mechanism portion causes the ridges to be transplanted. Transplanted seedlings are sequentially transplanted.

At this time, the left and right front wheels that support the transplantation mechanism are covered with ridges in the furrows or for holding the multi-film (embankment).
When approaching, the front rocking wheel in the front wheel first rides on the ridge and the soil, but the rear rocking wheel in the front wheel continues to run in the area without the ridge and soil. When the front rocking wheel rides over the ridge and the soil over the ridge and the soil cover, the rear rocking wheel rides on the ridge and the soil conversely, and at this time, the front and rear rocking wheels are mounted on the shaft. Since the wheel frame swings up and down around the support shaft as a center of rotation and the rocking wheels at the front and rear parts can ride on the ridges and the soil cover, the support shaft and the transplantation mechanism part hardly move up and down. The rocking wheels in the front and rear portions support the sprocket to make a stable progress, and the transplanting mechanism portion sequentially and properly transplants the transplanted seedlings into the transplanted portion. Even if the rear running wheel rides on the ridge or the soil cover, the front transplantation mechanism is supported by the left and right front wheels, so that the transplantation mechanism can be stably advanced without being affected by it.

In addition, in the transplanting machine according to claim 2, the setting positions of the left and right support shafts are set up and down or left and right by differential adjustment so that the transplanting mechanism part can properly transplant the transplanted seedlings, so that it corresponds to the situation of the ridges in the field. Can be made.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a transplanter. In the transplanter 1, traveling wheels 4 are rotatably mounted on the rear left and right sides of a main body frame 2 via an axle 3, and the left and right traveling wheels 4 are the main body. An engine 5 mounted on the upper rear side of the frame 2 is rotatably interlocked with an interlocking medium (not shown). Further, a transplantation mechanism portion 6 is provided on the upper front side of the main body frame 2, and the transplantation mechanism portion 6 is connected to the left and right traveling wheels 4 so as to be rotatable in the left-right direction via a rotation connecting means (not shown). There is. A support frame 7 is provided on the upper portion of the front side of the body frame 2 in the transplantation mechanism portion 6, and a turntable 9 is rotatably provided on the upper portion of the support frame 7 via a rotation shaft 8. A large number of seedling containers 10 are arranged and fixed at the outer peripheral edge of the turntable 9 at predetermined intervals. 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 heat is applied to a front portion of a frame 13 of the transplanter 12 via a link mechanism 14. The perforated body 15 is continuously provided. The turntable 9 is interlockingly connected to the engine 5 via an interlocking medium (not shown) so as to be intermittently rotated at predetermined intervals, and the transplanter 12 having the thermal perforation body 15 is also provided. Is intermittently rotated up and down with respect to the transplant portion at predetermined intervals via an interlocking medium (not shown) of the engine 5 and the vertical movement mechanism 11.

Next, the operation handle 16 is integrally projected from the rear left and right portions of the body frame 2 to the rear upper portion, and one of the support frames 18 horizontally fixed between the upper portions of the left and right columns 17 of the operation handle 16. A bracket 17 is fixed to a side portion, a base portion of a fixed arm 20 extending in the front-rear direction is integrally fixed to the bracket 19, and the fixed arm 20 is the operation handle.
It is horizontally fixed and supported by a stay 21 interposed between the 16 columns 17 and the columns 17. A seedling table 23 is horizontally fixed on the outer side of the proximal portion of the fixed arm 20 via a support body 22, and the vertical axis 24 is provided on the proximal portion of the fixed arm 20 near the tip thereof. The base end of the movable arm 25 is rotatably pivoted in the horizontal direction, and the center of the horizontally elongated rectangular movable seedling stand 27 is horizontally pivoted to the tip of the movable arm 25 via a support shaft 26. It is installed as possible.

Next, a swing arm 29 extending rearward through a support shaft 28 is elastically held in the lower left and right portions in the vicinity of the front end of the transplantation mechanism portion 6 so as to be rotatable in the vertical direction. A compression wheel 30 for compressing the upper surface of the ridge-implanted portion is rotatably mounted between the ends, and the compression wheel 30 is constantly urged downward.

A connecting plate 31 is fixed to the lower left and right front ends of the transplantation mechanism 6, and the left and right base ends of a U-shaped support frame 33 are vertically rotatable via a support shaft 32 on the left and right connecting plates 31. The support frame 33 is axially supported by the transplantation mechanism 6
It is supported by a vertical movement mechanism 35 provided between the fixed frame 34 and the fixed frame 34 so as to be adjustable in the vertical direction. Further, a mounting plate 37 is vertically projected on the front frame 36 between the front end portions of the support frame 33, and a U-shaped support rotatably mounted on the upper and lower mounting plates 37 via a vertical axis 38. A leveling roller 41 for leveling the upper surface of the transplanted part is rotatably mounted on the frame 39 via a roller shaft 40. Further, the left and right portions of the support frame 33 and the support frame 39
A coil spring 42 is stretched between the left and right portions of the grounding roller 41, and the left and right coil springs 42 elastically hold the leveling roller 41 in a straight traveling direction via a supporting frame 39.

A base end portion of a swing arm 43 is pivotally attached to both ends of the roller shaft 40 of the leveling roller 41 so as to be swingable in the vertical direction, and bearing piece portions 44 of tip portions of the left and right swing arms 43 close to each other.
An intermediate portion of a roller shaft 45 bent in a mountain shape is inserted and mounted on the roller shaft 45, and guide rollers 47 that engage with the left and right side portions of the ridge are rotated on the left and right inclined portions 46 of the roller shaft 45. It is freely pivoted.

Next, a connecting frame 48 having an L shape in a side view is fixed to the front frame 36 of the supporting frame 33, and locking pins 50 are erected in parallel integrally with the left and right upper portions of the horizontal plate portion 49 of the connecting frame 48 on the front side. It is set up. Further, a connecting piece 51 is provided so as to protrude from the rear upper portion of the horizontal plate portion 49 of the connecting frame 48, and an operating handle 52 also serving as a lock bar is provided between the left and right connecting pieces 51.
A lower end portion of the vertical shaft 54 is rotatably supported by a shaft via a support shaft 53 and a spring (not shown). The operation handle 52 projects from a vertical portion 54 and an upper portion of the vertical portion 54 to a side portion. It is formed with the operation portion 55 formed.

Next, a hollow cylindrical bearing body 57 penetrating in the front-rear direction is horizontally fixed to the upper portion of the vertical plate portion 56 of the connecting frame 48, and the rotating shaft 59 of the suspension frame 58 is fixed to the bearing body 57. It is rotatably inserted and supported, and the operating body 60 is attached to the tip of the rotating shaft 59.
The shaft support 61 at the lower end of the
The tip of 59 is integrally connected by a stopper pin 62, and a washer 63 is attached to the tip of this rotating shaft 59.
A retaining nut 64 is tightened through the. The operating body 60 is formed so as to extend in the vertical direction, and a guide groove 65 that penetrates the vertical portion 54 of the operating handle 52 is formed in the left and right direction at the upper end of the operating body 60. A plurality of locking recesses for selectively engaging and disengaging the vertical portion 54 at the edge portion.
66 is continuously formed, and a handle 67 is projectingly provided on one side of the operating body 60. Then, the operation handle 52
By engaging and disengaging the operating body 60 with respect to the vertical portion 54 via the locking recess 66, the suspension frame 58 is set to rotate in the left-right direction via the rotating shaft 59. Has become.

A movable support frame 70 is rotatably supported between the front end portions of the left and right side frame portions 68 of the suspension frame 58 via a horizontal shaft 69,
An adjusting screw 72 having a knob 71 at an intermediate portion of the movable supporting frame 70.
Is rotatably inserted and supported between the left and right side frame portions 68, and a movable frame 74 is rotatably provided between the left and right side frame portions 68 via a rotation center shaft 73 and a pair of left and right suspension pieces 75. It is suspended.
The movable frame 74 is formed in a substantially U-shape, and the pair of left and right suspension pieces 75 are integrally erected on both upper sides of a base frame 76 extending in the left-right direction. 76
An interlocking frame 77 is integrally projectingly provided in the front middle part of the, and a movable frame 79 is rotatably supported by the interlocking frame 77 via a horizontal shaft 78. An adjusting screw 72 is inserted and supported so as to be adjustable forward and backward. A support frame 81 extending toward the left and right portions of the transplantation mechanism portion 6 is integrally connected to both end portions of the base frame 76, and the outer portions of the left and right support frames 81 near the rear portion thereof are provided with the above-mentioned members. A support shaft 82 is horizontally and integrally projected at the lower left and right portions of the transplantation mechanism 6, and a pair of left and right suspension pieces 84 of a wheel frame 83 is vertically swingable on the left and right support shafts 82. It is mounted on. The left and right wheel frames 83 are
A pair of left and right supporting rods 85 extending in the front-rear direction is provided, and a substrate 86 is fixed between intermediate portions of the pair of left and right supporting rods 85.
The pair of left and right hanging pieces 84 are integrally erected on the upper part of 86,
Front and rear rocking wheels 88, 89 as front wheels are provided between front end portions and rear end portions of the pair of left and right supporting rods 85 via axles 87, respectively.
Is rotatably mounted on the shaft. Thus, the pair of left and right suspension pieces 84 are erected at the intermediate portion of the front and rear swing wheels 88, 89, and are vertically swingable about the support shaft 82 as a rotation center. There is. Further, a stopper 90 is provided on the outer side of the rear end of the left and right support frames 81 so as to project from the inside of the pair of left and right suspension pieces 84 so as to prevent the suspension pieces 84 from rotating. 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. Reference numeral 92 in the drawing denotes a locking pin projecting from the rear end portion of the main body frame 2, and a balance weight 93 can be attached to and detached from the locking pin 92 and the locking pin 50 as required. ing.

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

The ridge A coated with mulch film F in the field
When the vertical movement mechanism 35 is operated according to the height of the vertical axis, the vertical movement mechanism 35 vertically rotates the support frame 33 about the support shaft 32 and locks the rotation at a predetermined position. As a result, the leveling roller 41 is set to a predetermined height for leveling the transplanted portion B of the ridge A covered with the multi-film F, and the left and right guide rollers 47 are connected to the left and right side portions of the ridge A. Set to height.

Further, when the knob 71 is gripped and the adjusting screw 72 is rotated, the threaded portion and the screw hole 80 are formed on the movable supporting frame 70 which supports the adjusting screw 72 depending on the rotating direction of the adjusting screw 72.
The interlocking frame 77 is interlocked and rotated in the direction of separation or approaching via the, and the movable frame 74 having the interlocking frame 77 is vertically rotated about the rotational center shaft 73 via the pair of suspension pieces 75. At the same time, the left and right support shafts 82 of the left and right support frames 81 of the movable frame 74 are moved up and down, and the left and right support shafts 82 are set at predetermined positions, and the vertical rotation of the movable frame 74 is locked. . As a result, the suspension pieces 84 are attached to the left and right support shafts 82.
The left and right wheel frames 83 suspended through the position are set, and the front wheels of the left and right wheel frames 83, that is, the rocking wheels 88, 89 at the left and right front and rear portions are covered with the ridge groove C covered with the multi-film F. It is set at a predetermined height position where the vehicle travels. Then, the transplantation mechanism portion 6 is supported at a predetermined height position by the rocking wheels 88, 89 on the left and right front and rear portions.

Further, when the field is tilted, when the operation portion 55 is gripped and the operation handle 52 is rotated around the support shaft 53 at the lower end portion, the vertical portion 54 causes the vertical concave portion 54 of the operation body 60 to engage. When the operating body 60 is rotated in the left-right direction within the range of the guide groove 65 with respect to the operating handle 52, an integral rotating shaft 59 is connected to the operating body 60 via the stopper pin 62.
It rotates with respect to the bearing body 57 of 48, and
The suspension frame 58 having 59 is rotated to one side in the left-right direction according to the rotation angle of the operating body 60. Further, when the suspension frame 58 is rotated, the movable frame 74 is interlocked with this and similarly rotated in the same direction, and the swing wheels 88, 89 at the left and right front and rear portions of the left and right wheel frames 83 are also moved. Moved up and down. Then, the locking recess 66 at a predetermined position of the operating body 60
The vertical portion 54 of the operation handle 52 is engaged and locked in the operation body.
Lock the rotation of 60. As a result, the left and right wheel frames 83 are positioned with a left-right height difference, and the front wheels of the left-right wheel frame 83, that is, the rocking wheels 88, 89 at the left and right front and rear portions are tilted with a height difference covered with the multi-film F. It is set at a predetermined height position for traveling along the left and right ridge grooves C. Then, the rocking wheels 88, 89 on the left and right front and rear parts
The transplantation mechanism portion 6 is supported by the predetermined height position.

Next, the engine 5 of the transplanter 1 is driven in a state in which the left and right rocking wheels 88, 89 and the left and right running wheels 4 are arranged on the left and right ridge grooves C of the ridge A covered with the multi-film F. When the left and right traveling wheels 4 are rotationally driven, the transplanter 1 advances along the ridge A while straddling the ridge A by the rocking wheels 88, 89 in the left and right front and rear portions and the left and right traveling 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 proceed while rotating on their own.
Due to the traveling direction control action of 47, the transplanting machine 1 is advanced following the ridge A, and the grounding roller 41 is rotated while the multi-film F is used to flatten the transplanted portion above the ridge A with a predetermined ground pressure. While progressing.

Further, as the transplanter 1 advances, the transplanter 12 and the thermal perforation body 15 are vertically moved by the operation of the vertical movement mechanism 11, and the turntable 9 is rotated by the rotation of the rotating shaft 8.
Then, the transplanter 12 receives the transplanted seedlings from the seedling container 10 of the turntable 9 and heats the transplanted seedlings into a perforated body.
The heat-drilling body 15 simultaneously implants the transplant holes in the ridge A into the transplant part of the ridge A pre-drilled in the previous step by 15 and prepares the transplant holes in the multi-film F in preparation for the transplant of the next transplant seedling. Heat drilling sequentially. Also, the turntable 9 is intermittently rotated in accordance with the vertical movement of the transplanter 12,
The transplanted seedlings of each seedling container 10 are sequentially received in the transplanter 12 and transplanted, and the transplanted seedlings fall into the transplanter 12 and each empty seedling container 10 having no transplanted seedlings has a seedling mounting table. The transplanted seedlings are manually taken out from the seedling containers 33 and 27 and sequentially supplied. Therefore, the rotation of the turntable 9 sequentially supplies the transplanted seedlings from the respective seedling container 19 into the transplanter 12. is there.

Next, in transplanting the transplanted seedlings, the transplantation mechanism 6
When the rocking wheels 88, 89 on the left, right, front and rear sides supporting the soil cover the earth (bank) D raised to a predetermined size by pressing the multi-film F in the ridges C, the rocking wheel 88 on the front portion firstly covers the soil D. When the rear rocking wheel 89 continues to run in the ridge C where there is no soil cover D, and the front rocking wheel 88 rides over the soil S and travels through these cousins, the rear rocking motion occurs. On the contrary, the driving wheel 89 rides on the soil D and at this time, the wheel frame 83 on which the front and rear rocking wheels 88 and 89 are mounted.
Swings up and down around the support shaft 82 as the center of rotation to cover the soil D
Since the front and rear rocking wheels 88 and 89 can ride through,
The support shaft 82 and the transplantation mechanism portion 6 are supported by the front and rear swinging wheels 88 and 89 without moving up and down, and are stably advanced.
Transplanting seedlings are sequentially and properly transplanted to the transplanting section by the transplanting mechanism section 6. Even if the rear running wheel 4 rides on the soil D, the front transplanting mechanism 6 swings the left and right front and rear swinging wheels 88, 89.
Since it is supported by the implant mechanism 6, the implant mechanism 6 can be stably advanced without being affected by it.

Further, when the soil cover D for the mulch film F is automatically installed at a predetermined interval by the soil cover release mechanism, the interval between the left and right rocking wheels 88, 89 is the same as the soil cover D.
It is recommended to set the intervals at about half of the pitch. Even if the pitch of the soil D is different or there is unevenness in the ridge groove C, the vertical change of the support shaft 82 is about half of the change amount of the oscillating wheels 88, 89. Done.

Next, in the above embodiment, the left and right front and rear rocking wheels 88, 89
Has described the case of traveling on the soil D on the furrow C covered with the multi-film F for multi-cultivation, but is not limited to this, the ridges and unevenness on the furrows of the alley cultivation not using the multi-film F. Even when traveling through the section, the rocking wheels 88, 89 on the left, right, front and rear sides operate in the same manner as in the case of the above-described embodiment to make a stable progress, and a stable transplanting operation is performed.

〔The invention's effect〕

According to the first aspect of the present invention, since the front and rear pair of front wheels that swing in conformity with the unevenness of the furrows are provided, the front wheel largely affects the implantation mechanism portion by the unevenness of the furrows. It is possible to stably support the transplanted seedlings without fail by the transplantation mechanism section, and it is possible to reliably prevent the ridges from being broken down by the leveling roller and the guide roller. Since the wheels are provided at the front and rear of the wheel frame that can swing vertically around the support shaft, the structure is simple, and it should be provided at a lower cost than that using a detection control mechanism consisting of a horizontal sensor and an electric cylinder. You can

According to the invention of claim 2, the left and right support shafts around which the wheel frame having the front wheels are mounted are vertically adjustable, so that the transplantation mechanism portion is in relation to the left and right front wheels traveling in the ridge. Can be set to a proper relational position with respect to the transplantation part of the ridge, and the left and right support shafts can be adjusted differentially to the left and right to sufficiently cope with transplanting work on a sloping ground.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of an implanting machine, FIG. 2 is a plan view of a line a to a of the same as above, and FIG. 3 is a supporting mechanism supporting the implanting mechanism as above. FIG. 1 ... transplanter, 2 ... body frame, 4 ... running wheel, 6
...... Transplant mechanism part, 82 …… spindle, 83 …… wheel frame, 8
8,89 …… Front wheel.

Claims (2)

[Claims] 1. A main body frame provided with a transplantation mechanism portion for transplanting transplanted seedlings on a front side portion and a traveling wheel for traveling a ridge groove on a rear side portion, and positions on the left and right portions of the transplantation mechanism portion of the main body frame. And a front and rear pair of front and rear wheel frames that are pivotally mounted on the front and rear portions of the left and right wheel frames and that run on the ridge groove. A transplanter characterized by comprising: 2. The left and right support shafts around which the wheel frame is mounted are
The transplanter according to claim 1, wherein the transplanter is provided so as to be adjustable in vertical position.