JP2001086814A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a posture of seedlings of onions, Welsh onions, etc., from changing at the time of delivering thereof from a seedling transfer device even when planting disks are vertically moved. SOLUTION: This transplanter is obtained by installing the seedling transfer device 16 for nipping each seedling B and downwardly transferring the seedling B in a car body 2, arranging a planting mechanism 9 on a shaking frame 12 vertically, freely and movably supported in the car body 2, freely rotatably installing a pair of the flexible planting disks 49 arranged in an opposite state so as to receive the seedling B from the lower part of the seedling transfer device 16 and feed the received seedling B to a planting furrow A in the planting mechanism 9, arranging plural compacting wheels 50 in a nearly circular arc state in an area from a position at an intermediate height of the planting disks 49 to the lower part thereof in the lateral side of the planting disks 49 so as to press the pair of the planting disks 49 in the opposite direction, supporting the compacting wheel 50 in the topmost position in the plural compacting wheels 50 on the side of the seedling transfer device 16 and supporting the other compacting wheels 50 on a shaking frame 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a transplanter for seedlings such as onions and leeks.

[0002]

2. Description of the Related Art The prior art of this type of transplanter is as follows.
`` A lateral transfer mechanism that transfers while placing seedlings, and a downward transfer mechanism that intersects the delivery end of the lateral transfer mechanism and supplies the seedlings that have been delivered to the lower planting mechanism, In the seedling transfer device for a transplanting machine, the transfer body of the lateral transfer mechanism is provided with engaging portions capable of engaging with at least the root portion of the seedling at regular intervals in the transfer direction. The transfer start end of the downward transfer mechanism corresponding to is at a high position, and the sending end and the transfer start end constitute an intersection having a step, and the transfer body of the downward transfer mechanism has the engaging portion at the intersection. It constitutes a seedling posture correction unit that adjusts the position of the seedlings at the same time. "
523).

In this prior art, a planting mechanism for receiving seedlings transferred by a downward transfer mechanism and supplying the seedlings to a planting groove comprises a pair of flexible planting disks arranged in a face-to-face relationship, and the planting disks facing each other. And a plurality of pressing wheels that press in the direction, all of which are supported by a vertically movable rocking frame that supports the planting disc. Also,
The delivery end of the lateral transfer mechanism is adjacent to the clamping start end of the downward transfer mechanism, and the moving speed of the engaging portion of the lateral transfer mechanism is equal to the seedling transfer speed. The leaf portion is not guided only by holding the stem portion of the seedling.

[0004]

In the prior art described above, when the planting disc is moved up and down by following up and down of the ridges by the vertical movement of the swinging frame, the vertical positional relationship between the downward transfer mechanism and the pressing wheel changes. However, the posture of the seedlings transferred to the planting disc may change, resulting in poor planting. Also, it is difficult for the seedlings to be in the proper posture and position due to the spacing of the seedlings on the horizontal transfer mechanism, the transfer of the seedlings from the horizontal transfer mechanism to the downward transfer mechanism, the transfer of the seedlings by the downward transfer mechanism, etc. There is a problem.

An object of the present invention is to provide a transplanter which can solve such various problems of the prior art. The present invention is applied to the case where the planting disc moves up and down.
It is an object of the present invention to provide a transplanting machine in which the uppermost one of the pressing rings is kept in the vertical position with respect to the seedling transfer device so that the posture of the seedling at the time of delivery does not change. SUMMARY OF THE INVENTION An object of the present invention is to provide a transplanter capable of performing good planting by properly setting the posture and position of a seedling from a horizontal transfer mechanism to a planting disk via a vertical transfer mechanism.

[0006]

A first concrete means for solving the problems in the present invention is to provide a seedling transfer device 16 for holding a seedling B on a vehicle body 2 and transferring the seedling B downward. A planting mechanism 9 is provided on the swinging frame 12 which is freely supported, and a pair of movable members arranged in a face-to-face manner so as to receive the seedlings B from the lower part of the seedling transfer device 16 and supply the seedlings B to the planting grooves A. A flexible planting disc 49 is rotatably provided, and a substantially circular arc is formed between the intermediate height position and the lower portion of the planting disc 49 on the side of the planting disc 49 so as to press the pair of planting discs 49 in opposite directions. A plurality of pressing wheels 50 are arranged on the seedling transfer device 16 side of the plurality of pressing wheels 50, and the other pressing wheels 50 are supported by the swing frame 12.

As a result, the seedling B
The uppermost one of the pressing wheels 50 for holding the seedlings is supported on the seedling transfer device 16 side, so that even if the planting disc 49 supported by the swing frame 12 moves up and down, the seedling transfer device 16 can be used. The posture of the seedling B when transferring it to the disk 49 is not changed. The second specific means for solving the problem in the present invention is the same as the first specific means, wherein the seedling transfer device 16 includes a horizontal transfer mechanism 17 for placing the seedlings B and transferring the seedlings B substantially horizontally. From the lateral transfer mechanism 17
And a vertical transfer mechanism 19 for receiving the seedling B and transferring the same downward.
Timing means 30 for circulating a belt having 9A at equal intervals in the circumferential direction is provided, and the seedling holding end of the vertical transfer mechanism 19 is overlapped with the upper end of the end of the timing means 30.

As a result, the transfer of the seedlings B from the horizontal transfer mechanism 17 to the vertical transfer mechanism 19 becomes more reliable. A third specific means for solving the problem in the present invention is the projection 2 of the timing means 30 in addition to the second specific means.
Transverse transfer mechanism 1 for placing and transferring seedling B at 9A moving speed
7 is set slightly faster than the moving speed of the belts 25 and 27. Thereby, the timing means 30
The distance between the seedlings B above can be adjusted.

A fourth concrete means for solving the problem in the present invention is that, in addition to any one of the first to third concrete means, the vertical transfer mechanism 19 holds the stem of the seedling B and transfers it. And a pair of belts 25, 31
1 in that a guide plate 38 for guiding the leaves of the seedling B is provided substantially in parallel with 1. Thus, even if there is a seedling B having a bent leaf portion, the bending can be corrected by the guide plate 38.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 5 and 6, an overall outline of the transplanter 1 is shown. Reference numeral 2 denotes a vehicle body, and reference numeral 3 denotes a pair of left and right front wheels, which are height-adjustable and have a steering function. Reference numeral 4 denotes a pair of left and right rear wheels which constitute a noise wheel, and can be driven by an engine 5 mounted on the rear of the vehicle body 2 via a transmission in a transmission case 6 and a pair of right and left transmission cases 7 and the like. By swinging the transmission case 7, the height of the vehicle body 2 can be adjusted.

Reference numeral 8 denotes a groove generator, 9 denotes a planting mechanism, 10 denotes a soil covering mechanism, 15 denotes a driver's seat, and 18 denotes a driving wheel turning mechanism, which are arranged between the front wheel 3 and the rear wheel 4, respectively. .
A horizontal shaft 11 is supported on the vehicle body 2 via a bearing, and a rear portion of a swing frame 12 is pivotally supported on the horizontal shaft 11. The front portion of the swing frame 12 can be hung and urged by an elastic pressure mechanism 13 provided between the vehicle body 2 and the ground frame at an appropriate pressure. A groove forming device 8 in the swing frame 12, and a planting mechanism 9 for planting a seedling B (shown in FIG. 2) in a planting groove A formed by the groove forming device 8.
And a soil covering mechanism 10 having a soil covering ring 14 for covering the seedlings B planted.

The seedling transfer device 16 is configured to transfer the seedlings B substantially horizontally in the horizontal direction while placing the seedlings B thereon, and to hold the seedlings B delivered from the delivery end (end) of the horizontal transfer mechanism 17 while holding the seedlings B therebetween. And a vertical transfer mechanism 19 that transfers the seeds to the planting mechanism 9 in a downward direction. The driving wheel mechanism 18 has a horizontal axis 1
A driving wheel 22 is supported at the end of an arm 21 pivotally supported by the first wheel 1, and the rotation of the driving wheel 22 is transmitted to the planting mechanism 9 and the seedling transfer device 16 via a transmission means 23. ing. The drive wheel 22 is formed of a wheel with a wing or the like, and rolls on the ridge immediately after the earth covering wheel 14 without slipping, so that the planting mechanism 9 and the seedlings can correspond exactly to the moving distance of the vehicle body 2. The transfer device 16 is driven. Reference numeral 24 denotes a regulating member that regulates the swing of the arm 21 beyond a certain angle.

In one transplanter 1 arranged so as to straddle the ridge N, the engine 5, the swing frame 12, the seedling transfer device 16 and the driving wheel are deviated from the center of the vehicle body 2 to one of the right and left sides. A mechanism 18 and the like are arranged.
2, two sets of the groove generator 8, the planting mechanism 9, the soil covering mechanism 10 and the like are arranged side by side on the left and right, and two sets of the driver's seat 15 and the seedling transfer device 16 are provided correspondingly.
Therefore, the transplanter 1 is configured to simultaneously plant two seedlings B on the left and right sides of the ridge N and reciprocate the ridge N to plant four seedlings B. The two earth-covering rings 14 at the center of the two earth-covering mechanisms 10 are integrally formed in a back-to-back manner, but may be formed separately, and the right driver's seat 15R is arranged forward.
The left driver's seat 15L is arranged slightly obliquely to the left in order to facilitate removal of seedlings and getting on and off. This driver's seat 15
With only one seat, and seedlings B alone on the left and right seedling transfer devices 16
It is also possible to configure to supply

Reference numeral 41 denotes a scraper attached to the front part of the vehicle body 2, which is adjustable in height and angle.
The topsoil of the ridge N at the planting position of the streaks is cut and flattened. 4
Reference numeral 2 denotes a stand on which the seedlings B or the spare seedlings are placed, and reference numeral 43 denotes a steering handle. 1 to 6, reference numeral 20 denotes a vehicle body 2.
Two sets of seedling transfer devices 16 are symmetrically supported on the driver's seat 15 side of the support frame 20 in a substantially vertical direction (slightly inclined rearward). Each seedling transfer device 16 has a belt 25 wound in a substantially L-shape when viewed from the front.
L-shaped transfer means 26 for mounting and transferring the stem portion of seedling B to
A leaf transfer means 28 for placing and transporting the leaf side of the seedling B with a belt 27 parallel to a substantially horizontal portion of the belt 25 of the L-shaped transfer means 26; Means 30 having a marker belt 29 for timing the seedlings B between the section and the leaf transfer means 28; a substantially vertical portion of the belt 25 of the L-shaped transfer means 26;
And a lower transfer means 32 for sandwiching and transporting the seedling B between them.

Reference numeral 33 shown in FIG. 3 denotes a transmission drive shaft to which power is transmitted from the driving wheel mechanism 18.
Drives the L-shaped transfer means 26 and the lower transfer means 32 via a belt (or chain) 34 from the L-shaped transfer means 26
The rotation of the pulley shaft 35 drives the leaf transfer means 28 and the timing means 30. The marker belt 29 of the timing means 30 is a belt 25,
7 is arranged at the same height as or slightly higher than that of FIG. 7, and projections (engaging portions) 29A are provided on the outer peripheral surface thereof at equal intervals in the circumferential direction, and the middle of the seedling B placed on the belts 25 and 27 between them. It is engageable with the part.

The marker belt 29 has a long length and a joint 29B.
Are formed in an endless shape by connecting
It is preferable to prepare a plurality of pieces having different 9A intervals and use them in accordance with the transplanted seedlings. The moving speed of the marker belt 29 is set to be slightly higher or lower than that of the belts 25 and 27.
Is brought into contact with the projection 29A so that the interval between the seedlings B placed on the belts 25 and 27 can be made constant. In addition,
The traveling speed of the marker belt 29 may be set to be equal to that of the belts 25 and 27 so that the worker can bring the seedling B into contact with the projection 29A. In this case, the marker belt 29 may be provided with only marks at regular intervals without providing the projection 29A.

The upper pulley shaft 36 of the lower transfer means 32
Is provided with a leaf feed roller 37, which is attached to the belt 27 of the leaf transfer means 28.
And the leaf of the seedling B is guided downward.
Upper part of lower transfer means 32 and leaf feed roller 37
Are the corners of the L-shaped transfer means 26 and the timing means 30
And the discharge end (end) of the leaf transfer means 28 overlaps by a dimension L, and the dimension L is a grip for ensuring and smooth delivery of the seedlings B from horizontal transfer to vertical transfer. Is at the end.

A substantially vertical portion of the belt 25 of the L-shaped transfer means 26 and a belt 31 of the lower transfer means 32 facing the belt 25 are
The seedlings B are transferred downward while sandwiching the stems of the seedlings B at the portions facing each other. At this time, a pair of guide plates 38 are provided to guide the leaves. This pair of guide plates 3
Numeral 8 is disposed on the driver's seat 15 side of the belts 25 and 31, is formed of a metal plate or a synthetic resin plate, and is fixed to a support 39 formed by bending a bar. The support 39 is fixed to the swing frame 12 by bolts. The pair of guide plates 38 may be attached to the support frame 20.

The pair of guide plates 38 have a posture forcing function for forcing the seedlings B to bend even if the seedlings B are bent, so that the seedlings B can be supplied to the planting mechanism 9. In the case of an onion seedling having a long leaf portion, the belt 25, 31 can be used for transplanting while correcting the bent seedling with the guide plate 38 without making the width of the belt 25, 31 unnecessarily wide. The horizontal transfer mechanism 17 is constituted by the substantially horizontal portion of the L-shaped transfer means 26, the leaf transfer means 28, the timing means 30 and the like, and is constituted by the substantially vertical portion of the L-shaped transfer means 26, the lower transfer means 32, the guide plate 38 and the like. A vertical transfer mechanism 19 is configured.

The horizontal transfer mechanism 17 not only optimizes the transfer interval of the seedlings B placed thereon, but also has a buffer (storage) function because it enables the placement of a large number of seedlings B.
By placing a plurality of seedlings B on the horizontal transfer mechanism 17 when removing the seedlings on hand and removing them from other seedling boxes, it is possible to replace seedling boxes without stopping the traveling of the transplanter 1. Can be performed and continuous work can be performed.
The planting mechanism 9 is disposed behind the sending end at the lower end of the vertical transfer mechanism 19. The planting mechanism 9 includes a main body shaft 48 which is supported at a middle portion in the front-rear direction of the rocking frame 12 via a bearing body 47, and a pair of main body shafts 48 which are laterally separated from each other and are attached to the main body shaft 48 so as to face each other. The planting disc 49 is formed of a flexible elastic material such as a rubber material or a resin material, and the power from the driving wheel mechanism 18 is transmitted to the main body shaft 48. Thus, the transplanter 1 is rotationally driven at a peripheral speed proportional to the moving speed.

A plurality of pressing wheels 50A are arranged in a substantially arc shape centering on the main body shaft 48 so as to face an arc portion extending from a middle position in the vertical direction at the front of the planting disk 49 to a lower portion thereof. Press wheel axle 51 that freely supports 50A
A is mounted on a bracket 52 which is detachably attached to the bridle frame 12, and extends radially from the main body shaft 48. A plurality of the pressing wheels 50A, three in FIG. 1, are provided, and the uppermost pressing wheel 50B located above them is the first pressing wheel at the start of seedling clamping, and a pressing wheel shaft for the pressing wheel 50B. 51B is attached to the support frame 20.

The pressing wheel 50 includes a pair of left and right planting discs 4.
9 is pressed from the outside in the opposite inward direction, and the planting disc 49 is pressed.
Are rotated to pinch the seedlings B, and after transferring to the lower part, release the seedlings B and release the seedlings B. When the swing frame 12 swings up and down due to the unevenness of the ridge N, and the planting mechanism 9 moves up and down due to the swing, the vertical transport mechanism 19
The vertical position of the planting disc 49 with respect to
The relationship between the pressing wheel 50B and the vertical transport mechanism 19 is always constant, and the delivery of the seedlings B is performed while the delivery conditions from the vertical transport mechanism 19 to the planting disc 49 are always kept constant. I have.

That is, the relationship between the seedlings B released from the vertical transport mechanism 19 and the starting position of the seedling disc 49 for holding the seedlings is universal, so that the seeding discs 49 can always hold the seedlings B under substantially the same conditions. And planting disc 4
No. 9 can be grasped without changing the posture angle of the seedling B even when the relative height changes, and the planting posture and planting depth are stabilized by eliminating the disturbance of the posture of the seedling B. The lower part of the vertical transfer mechanism 19 is located near the front of the planting disk 49, and the seedlings B transferred downward by the belts 25 and 31 of the vertical transfer mechanism 19 remain between the planting disks 49 in that posture. While being held between the planting discs 49 pressed by the left and right pressing wheels 50B at the uppermost position.

Next, the seedling B is transported downward and backward in a substantially 90-degree arc while being sandwiched by the planting disk 49 of the planting mechanism 9, and is vertically rearward from the pressing wheel 50A at the lower end, with the root at the lower end. The holding is released in the posture, and the plant stands in the planting groove A independently. The peripheral speed of the planting disc 49 is set to be substantially the same as or slightly lower than the transfer speed of the seedlings B in the vertical transfer mechanism 19. Next, the transplantation operation will be described.
The transplanting machine 1 is run across the ridge N, and the planting groove A is formed in the ridge N along the longitudinal direction by the groove generator 8, and the driving roller 22 is pressed by the pressure-reducing wheel 14 to form the ridge N. The upper part is rolled to drive the planting mechanism 9 and the seedling transfer device 16, respectively.

In this state, the operators in the driver's seats 15L and 15R take out the seedlings B from the seedling mounting table 42 or a seedling mounting table (not shown) provided on the side of the vehicle body 2, and adjust the longitudinal direction of the seedlings B. Each of the belts is placed on the belts 25 and 27 of the horizontal transport mechanism 17 between the projections 29A or in the vicinity of the projections 29A one by one in the front-rear direction and the leaf part at the front. The seedling B placed on the belt 2
Due to the difference in speed between 5 and 27 or artificially, it is brought into contact with the projection 29A, and is transported in a state where the interval is constant. The seedlings B on the horizontal transfer mechanism 17 are smoothly and reliably transferred to the vertical transfer mechanism 19 at the holding portion (dimension L portion), and are sandwiched by the belts 25 and 31, whereby the transfer direction is downward. Even if the leaves are bent by the guide plate 38, the leaves are transferred to the vicinity of the lower end of the vertical transfer mechanism 19 while being corrected, and supplied to the planting disc 49.

A pair of planting discs 49 of the planting mechanism 9
The seedling B inserted in between is first sandwiched between the lower end of the vertical transfer mechanism 19 and the pressing wheel 50B which is always in a fixed positional relationship with the root portion positioned outside the diameter of the planting disc 49, It is transported to the lower side under the pressing action of the pressing wheel 50A by the rotation, is opened at the lower part of the planting disc 49, is self-standing sequentially with the root part downward in the planting groove A, and is then covered with the soil covering mechanism 10.
Note that the present invention is not limited to the above embodiment, and can be variously modified. For example, the transplanter 1
The engine 5, the planting mechanism 9, the swing frame 12, the seedling transfer device 16, the driving wheel mechanism 18, and the like are arranged at the center in the left-right direction of the vehicle body 2. Only one set may be used.

The planting mechanism 9 and / or the seedling transfer device 16 may be driven by the power of the engine 5 or the operating speed thereof may be changed.

[0028]

According to the present invention described in detail above, a plurality of pressing wheels 5 for pressing a pair of planting discs 49 in opposite directions.
0 is supported on the seedling transfer device 16 side,
Since other things are supported by the swing frame 12, even if the planting disc 49 supported by the swing frame 12 moves up and down, the posture of the seedling B when the seedling B is transferred from the seedling transfer device 16 to the planting disc 49. Seedling B
Planting posture can be improved.

Further, the horizontal transfer mechanism 17 to the vertical transfer mechanism 19
The seedlings B can be more reliably delivered to the seedlings B, the intervals of the seedlings B on the timing means 30 can be adjusted, and the bending of the leaves of the seedlings B can be corrected by the guide plate 38.
Can be planted well in a proper posture.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of an embodiment of the present invention.

FIG. 2 is a partial cross-sectional rear view of the main part.

FIG. 3 is a plan view of the seedling transfer device.

FIG. 4 is a rear view of the seedling transfer device.

FIG. 5 is a side view of the entire transplanter.

FIG. 6 is a plan view of the entire transplanter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplanter 2 Body 9 Planting mechanism 10 Covering mechanism 12 Swing frame 16 Seedling transfer device 17 Lateral transfer mechanism 18 Drive wheel mechanism 19 Drive wheel mechanism 20 Support frame 48 Main shaft 49 Planting disk 50 Press wheel 51 Press wheel shaft A Planting Groove B Seedling N Row

 ──────────────────────────────────────────────────の Continued on front page (72) Inventor Kenkichi Nosaka 64, Ishizukitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works (72) Inventor Kenji Kita 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house F-term (reference) 2B060 AA07 AC02 AD01 AE01 BA03 BB03 BB05 CB06 CB11 CB29 CC09 CC11 CC20

Claims (4)

[Claims] 1. A seedling transfer device for holding a seedling on a vehicle body and transferring the seedling downward, a planting mechanism provided on a swinging frame supported movably up and down on the vehicle body, and a lower portion of the seedling transfer device provided on the planting mechanism. A pair of flexible planting discs arranged in a face-to-face manner so as to receive the seedlings and supply them to the planting grooves are rotatably provided, and a pair of planting discs are pressed against the side of the planting discs in opposite directions. A plurality of pressing wheels are arranged in a substantially arc shape from the intermediate height position to the lower portion of the planting disc, and the highest one of the pressing wheels is supported on the seedling transfer device side, and the other ones are supported. A transplanter characterized by being supported on a swing frame. 2. The seedling transfer device has a horizontal transfer mechanism for placing seedlings and transferring them substantially horizontally, and a vertical transfer mechanism for receiving seedlings from the horizontal transfer mechanism and transferring the seedlings downward. The lateral transfer mechanism includes timing means for circulating a belt having projections that can contact the seedlings at equal intervals in the circumferential direction,
2. The transplanter according to claim 1, wherein the holding edge of the seedling of the vertical transfer mechanism is overlapped to the upper side of the end of the timing means. 3. The projection moving speed of the timing means,
3. The transplanter according to claim 2, wherein the speed is set slightly higher than the moving speed of the belt of the lateral transfer mechanism for placing and transferring the seedlings. 4. The vertical transfer mechanism has a pair of belts for nipping and transferring the stem of the seedling, and a guide plate for guiding the leaves of the seedling is provided substantially in parallel with the belt. The transplanter according to any one of claims 1 to 3.