JP3429257B2 - Transplanter seedling transporter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling conveying device for a transplanter, which is optimal for planting small seedlings, especially chrysanthemum seedlings.

[0002]

2. Description of the Related Art As a conventional technique for this type of transplanter,
“A lateral transfer mechanism for transferring seedlings while placing them, and a downward transfer mechanism that intersects the delivery end of the lateral transfer mechanism and that feeds the seedlings to the lower planting mechanism while sandwiching them. In the seedling transfer device of the transplanting machine, the transfer member of the lateral transfer mechanism is an endless belt provided with an engaging portion that is engageable with at least the vicinity of the root of the seedling at intervals in the transfer direction. A plurality of transfer bodies with different gaps at the joints are interchangeably wound around a pulley, and further, the transfer end of the downward transfer mechanism intersects with the output end of the lateral transfer mechanism. "
(Japanese Utility Model Publication No. 63-31522).

In this prior art, the delivery end of the lateral transfer mechanism is adjacent to the nipping 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. In the lateral transfer mechanism, two endless belts with engaging portions are used to place and convey the stems of the seedlings and the tips of the leaves, but the middle portions of the leaves are not placed and conveyed.

[0004]

In the above-mentioned prior art, for seedlings with a stalk or root, when the seedlings are placed on the lateral transfer mechanism, they can be placed without losing their posture. Seedlings without tension, that is, chrysanthemum seedlings, leaves spread widely from the stem toward the leaves and need to be planted in a soft state. For seedlings,
Positioning of the stems or roots is difficult because there are engaging parts on the two endless zones, it may be difficult to determine the planting pitch at an appropriate interval, and it is difficult to support the middle part of the seedlings.
It may be difficult to convey the paper in the proper posture and at the proper intervals.

It is an object of the present invention to provide a seedling transfer device for a transplanter, which can solve the various problems of the prior art. The present invention provides an endless belt on which a midway portion of a seedling, a leaf portion, and a base end portion are placed, and a main endless belt on which the seedling midway portion is placed is arranged so as to be able to run from a lateral transport unit to a lower transport unit. ,
An object of the present invention is to provide a seedling transfer device for a transplanter, which is capable of transferring seedlings in an appropriate posture and at an appropriate interval by providing a protrusion for determining a seedling mounting pitch on the base endless belt.

[0006]

The concrete means for solving the problems in the present invention will be described below . Firstly, the main endless belt 25 on which the midway portion a of the seedling B can be placed is arranged so as to be able to run from the substantially horizontal lateral transport portion P to the substantially vertical lower transport portion S. A base endless belt 29 for placing and guiding the base end portion b of the seedling B and a flat leafless endless belt 27 for placing and guiding the leaf portion c of the seedling B are arranged along the transport portion P, and the main endless belt is provided. Along the lower transporting section S of the belt 25, a vertical endless belt 31 is arranged that moves downward while sandwiching the seedling midway portion a together with the main endless belt 25 and transfers the seedling leaf parts c to the planting mechanism 9. wherein the proximal end endless belt 29 is provided with projections 22 which determines the seedling pitch, the group
The endless belt 25 and the vertical endless belt are provided at the end of the endless belt 29.
The seedling base end b sandwiched with the band 31 is removed from the base endless band 29.
The release guide 35 and / or the main endless belt 25 and the vertical endless end
When sandwiching the seedling midsection a with the belt 31, the seedling base end b is used as a base.
An elastic resistor 36 that elastically presses the endless belt 29 side is provided.
It is that it has only been.

As a result, even a small seedling B without tension can be transported to the planting mechanism 9 in a reliable and proper posture while being placed on the main endless belt 25, and the growing condition is different. Even for large and small seedlings B, the seedling base end portion b having substantially the same diameter is applied to the protrusions 22 to determine the planting pitch, and the seedlings are conveyed at appropriate intervals. Moreover, even if the seedling B adheres to the base endless belt 29,
Can be separated and reliably delivered to the vertical endless belt 31
And / or proper attitude and proper position on the main endless belt 25
The seedlings B placed at intervals are turned downward without breaking the state.
It becomes possible to transfer it to transport.

Second, the projection 22 of the base endless belt 29
Is a pillow portion 22A on which the seedling base end portion b is placed, and this pillow portion 22A.
It has the positioning part 22B which protrudes further upward. As a result, the seedling base end portion b is set to an appropriate height in the pillow portion 22A, the seedling posture in the mounted state is set to an appropriate state, and accurate transport is guaranteed. Third, the projections 22 of the proximal endless belt 29 is that it is a front generally L-shaped or substantially U-shaped.

This makes it possible to easily and easily form the projections 22 for adjusting the seedling posture and the seedling interval. First
4, the width T1 of the leaf endless belt 27 is the main endless belt 25.
Band width T2 is set to be approximately the same as or wider than that.
And. By this, when the worker puts the seedling B
In this way, it is possible to stably receive seedlings with a sufficiently wide band. Fifth
In addition , the seedling B is provided on the starting end side of the lateral conveying section P of the main endless belt 25.
That is, the work table 41 that can be placed and is foldable or fixed is provided.

As a result, the work of placing the seedlings B on the endless belt of the lateral conveyance section P becomes easy.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 6 to 8, an overall outline of the transplanting machine 1 is shown. Reference numeral 2 is a vehicle body of the transplanter 1, 3 is a pair of left and right front wheels, the height of which is adjustable and has a steering function, and 4 is a pair of left and right rear wheels, which constitute a noisy wheel. Driving power is transmitted to the rear wheel 4 by an engine 5 mounted on the rear portion of the vehicle body 2 via a transmission in a transmission case 6, a pair of left and right transmission cases 7, and the transmission case 7 is swung. Due to this, the height of the vehicle body 2 can be adjusted.

Reference numeral 8 is a groove making device, 9 is a planting mechanism, 10 is a soil covering mechanism, 11 is a groove cutting desk, and 12 is a seat, respectively.
These are arranged between the front wheel 3 and the rear wheel 4. A horizontal shaft 13 is supported by the vehicle body 2 via a bearing body, and a rear portion of a swing frame 14 is pivotally supported on the horizontal shaft 13.
The front portion of the swing frame 14 is elastically or height-adjustably supported with respect to the vehicle body 2 via a supporting means 15, and can be hung and supported via an elastic body or its own weight. It is urged by the proper pressure toward the ground.

The swing frame 14 is provided with a grooving device 8 and
A planting mechanism 9 for planting the seedling B in the planting groove A formed by the grooving device 8 and a soil-covering ring of a soil-covering mechanism 10 for covering the planted seedling B with soil are respectively provided. A seedling transport device 16 is arranged above and above the planting mechanism 9. The seedling transfer device 16 is supported by the front part of the vehicle body 2 in front of the seat 12, and has a lateral transfer mechanism 17 for transferring the seedlings B in a substantially horizontal direction while placing the seedling B, and this lateral transfer mechanism 17.
And a vertical transport mechanism 18 that transports the seedlings B delivered from the end to the planting mechanism 9 while feeding the seedlings B downward.

In one transplanter 1 arranged so as to straddle the ridge N, the engine 5, the swing frame 14, the seedling transfer device 16 and the like are arranged so as to be offset from the center of the vehicle body 2 to the left or right. In addition, the swing frame 14 is provided with the grooving device 8,
Two sets of the planting mechanism 9, the soil covering mechanism 10 and the like are arranged side by side, and two sets of the groove cutting desk 11, the seats 12L and 12R, the seedling transfer device 16 and the like are provided correspondingly. The transplanter 1 is for two-seater simultaneous planting of two rows, the right seat 12R is a driver's seat for steering the front wheels 3, and two rows of seedlings B are planted on one side of the ridge N at the same time.
Four rows of seedlings B can be planted by going back and forth through the ridge N.

In FIGS. 1 to 8, reference numeral 20 denotes a support frame which is attached to the vehicle body 2 in a substantially upright shape (slightly rearwardly inclined shape), and two sets of seedlings are conveyed symmetrically on the seat 12 side of the support frame 20. A device 16 is supported. Each seedling transport device 16 has an L-shaped transport means 26 that transports by placing the midway part a side of the seedling B on a main endless body 25 wound in a substantially L-shape when viewed from the front.
And the lateral transport portion P of the main endless body 25 of the L-shaped transport means 26.
A leaf portion conveying means 28 for placing and conveying the leaf portion side of the seedling B by a leaf portion endless belt 27 parallel to and a lateral seedling portion P arranged along the lateral conveying portion P of the main endless body 25 of the L-shaped conveying means 26. A timing means 30 having a base endless belt (marker belt) 29 for determining the seedling placement pitch of B, a vertical conveying section S of the main endless body 25 of the L-shaped conveying means 26 and a vertical endless belt 31 are substantially faced to each other. And a lower conveying means 32 for nipping and conveying the seedling B.

The main endless body 25, the leaf endless belt 27, the base endless belt 29, the vertical endless belt 31 and the like are formed of rubber belts. The seedlings B, especially chrysanthemum seedlings, have roots and cuttings, and the root or cutting end is named as the base end b, and the stem and leaves are in the middle part a and the tip is the leaf part c. They are named respectively. The left and right seedling carrier devices 16 can be driven by the power from the engine 5 in synchronization with the planting mechanism 9, and the main endless body 2 arranged below the lower carrier means 32.
5 and the pulleys 21A and 21B of the vertical endless belt 31, and the power is also transmitted to the leaf endless belt 27 and the base endless belt 29 via the upper pulley 21C.

The main endless body 25 is attached to the upper pulley 21C,
The leaf endless belt 27 and the base endless belt 29 are wound around. The main endless body 25 is bent in a substantially L-shape when viewed from the front by a pulley 21A, 21C, 21D, 21E supported by the support frame 20, and is wound so as to be rotatable. The middle part a of the seedling B can be placed by P and can be moved downward while sandwiching the middle part a of the seedling B together with the vertical endless belt 31 in the substantially vertical vertical conveyance section S. The pulley 23A is an idler pulley, and the pulley 23B is a tension pulley.

Leaf endless belt 2 constituting the leaf conveying means 28
7 is arranged along the lateral conveyance part P of the main endless belt 25, and the conveyance surface is formed into a flat surface having no unevenness like the main endless body 25, and the seedling B placed on the main endless body 25 The leaf c is assisted in placement and guidance. The band width T1 of the leaf endless band 27
Is set to be substantially the same as or wider than the band width T2 of the main endless belt 25, so that even if the seedling B is long and the width of the main endless belt 25 is narrow, the seedling can be reliably transported. ing. The base endless belt 29 is located on the opposite side (support frame 20 side) of the leaf conveying means 28 with the main endless belt 25 sandwiched therebetween, and is arranged in parallel with them, and is arranged on the outer peripheral surface at equal intervals in the circumferential direction. It has a large number of protrusions 22.

The protrusion 22 is, as shown in FIGS.
A substantially L-shaped member in a front view is fixed to a belt, and integrally includes a pillow portion 22A on which the seedling base end portion b is placed and a positioning portion 22B protruding upward from the pillow portion 22A. For example, when transplanting chrysanthemum seedlings, about 15
The intervals of the protrusions 22 are set so as to be planted at an interval of cm, and the seedling base end portion b is placed on the pillow portion 22A on the rear side in the moving direction of the positioning portion 22B. The upper surface of the pillow portion 22A is slightly higher than the main endless body 25 and the leaf endless belt 27, and the seedling leaf c
If the center of the leaf is higher than the upper surface of the endless zone due to overgrowth, the seedling B can be placed in a substantially horizontal position, and the posture of the seedling B with respect to the horizontal plane becomes good. Also,
The position of the seedling B in the carrying direction is determined by the positioning portion 22B, and the seedlings B are regularly arranged at regular intervals, so that the posture in the carrying direction is also improved.

Since the base end portion b of the seedling B is higher than the upper surface of the main endless body 25, when it is transferred to the lower conveying means 32 at the end in the conveying direction, it is rotated by an arc having a larger diameter than the upper surface of the main endless body 25. However, there is a possibility that a slight deviation in the circumferential direction may occur, but in such a case, it is allowed to escape in the direction away from the positioning portion 22B. However, such escapes are very small and can be ignored,
If you want to set the position of seedling B more accurately than that,
As shown in FIG. 5, the protrusion 22 of the proximal endless band 29 may be formed in a substantially U-shape (including a U-shape) when viewed from the front.

The base end portion b of the seedling B, which is sandwiched between the main endless belt 25 and the vertical endless belt 31, is provided on the transporting end side of the base endless belt 29.
A detachment guide 35 for detaching the base endless belt 29 from the endless belt 29 is provided. The detachment guide 35 is formed of a thin metal or plastic plate material, is disposed on the side surface of the transport end of the proximal endless belt 29, and is fixed to the support frame 20. The detachment guide 35 has a substantially arcuate shape when viewed from the front, and its outer peripheral edge is formed so as to gradually separate from the state of being close to the pulley 21C in the radially outward direction and intersect the outer peripheral surface of the proximal endless belt 29.

The detachment guide 35 forcibly detaches the seedling B so that the base end b of the seedling B does not come into contact with the protrusions 22 and come into close contact therewith, which does not adversely affect the delivery to the lower conveying means 32. The leaf portion c is a leaf endless belt 2
It is also useful when it is in close contact with 7. Reference numeral 36 denotes an elastic resistor 3 that elastically presses the seedling base end portion b toward the base endless belt 29 side.
It is 6. The elastic resistor 36 is formed of a coil spring, and a stay 38 is bolted to a pulley shaft 37 on the starting end side (upper side) of the lower conveying means 32.
The upper end of the coil spring is fixed to 8, and the lower part is arranged so as to be able to contact the seedling base end b.

The elastic resistor 36 elastically presses the base end portion b which rotates at a large diameter at the end of the base endless belt 29, and is delivered to the start end side of the lower conveying means 32 in an appropriate posture. There is. The lower conveyance means 32 has a vertical conveyance section S of the main endless belt 25 and a vertical endless belt 31. Both the endless belts 25 and 31 closely face each other and receive a nipping action of a large number of nipping rollers 50, so that both seedlings are seeded. The intermediate portion a of B is sandwiched and conveyed downward. The starting end of the upper part of the vertical endless belt 31 is the horizontal conveyance section P of the main endless belt 25.
It is arranged so as to slightly cover the end of the seedlings so that the seedlings B can be delivered smoothly and surely.

A pulley around the upper portion of the vertical endless belt 31 is supported by a pulley shaft 37, and the rubber roller 3 that rolls in contact with the leaf endless belt 27 on the pulley shaft 37.
9 is provided so that the leaf portion c of the seedling B can be accurately turned from the horizontal transfer to the vertical transfer.
A cover 40 for covering the end of the endless belt is provided on the starting end of the L-shaped transporting means 26, that is, on the outer side of the lateral transporting section P, and a workbench 41 is provided on the cover 40. A box base 42 on which a seedling box or the like can be placed is provided on the upper part of the support frame 20, and a large number of seedlings B are taken out from the box base 42 at a time and placed on a work table 41. And seedling B 1
The worktables 41 are unfolded one by one and placed on the endless belts 25, 27, 29, and the workbench 41 is arranged at an optimum position for auxiliary work such as seedling separation work.

The workbench 41 may be fixed to the cover 40, but it is foldably connected to the upper or lower side via a hinge so that it can be placed flush with the cover 40 at the time of work and moved up and down. It can be folded at times. A planting mechanism 9 is arranged behind the delivery end at the lower end of the lower conveyance means 32. The planting mechanism 9 is attached to the body shaft 44, which is supported by a bearing body 43 in the middle of the rocking frame 14 in the front-rear direction, and has a shaft center sideways, and the body shaft 44 is laterally spaced apart from each other. And a pair of planting disks 45.

The planting disc 45 is made of a flexible elastic body such as a rubber material or a resin material, and the power from the engine 5 is transmitted to the main body shaft 44, so that it is proportional to the moving speed of the transplanting machine 1. It is driven to rotate at the specified peripheral speed. A plurality of pressing wheels 46 are arranged in a substantially circular arc shape with the main body shaft 44 as the center, facing the circular arc portion extending from the vertical midway position of the front part of the planting disk 45 to the lower part, and each pressing wheel 46 is free to move. The pressing wheel shaft 46 </ b> A that is rotatably supported is mounted on a bracket 47 that is detachably attached to the rocking frame 12 and extends from the main body shaft 44 in the radial direction.

The pressing wheel 46 is a pair of left and right planting discs 4.
5 from the outside in the opposite inward direction,
Holds the seedlings B while rotating and conveys the seedlings B to the lower part to release the seedlings B and release the seedlings B. Reference numeral 51 shown in FIGS. 4, 8 and 9 indicates a defective delivery seedling discharging means. This defective delivery seedling discharging means 51 is formed of a guide plate 52 arranged below each lower conveying means 32, and the guide plate 52 is mounted on the pulley shaft of the pulley 21A whose upper portion is supported by the support frame 20 or the like. And thin steel sheet,
It is formed of a spring plate or the like into a substantially three-shape when viewed from the front. The guide plates 52 of the left and right lower conveying means 32 are arranged to face each other.

If the seedling B transferred by the lower transfer means 32 is not successfully delivered to the planting disk 45, the seedling B is transferred from the lower transfer means 32 to the groover 8.
It may fall inside and cause seedling blockage. Therefore, the defective seedlings are grooved under the lower conveying means 32.
It is necessary to guide the fall to the front or outside. In the defective delivery seedling discharging means 51, the planting disk 45 is the seedling B.
When the seedling B is not pinched, the seedling B comes into contact with the guide plate 52 and elastically deforms while pressing it, and is repelled outward by the restoring force of the guide plate 52. Therefore, the poorly delivered seedlings are embedded in the ridge N or pushed to the side of the planting position by the grooving device 8 and do not adversely affect the transplanted seedlings.

The guide plate 52 may be attached to the pulley shaft of the pulley 21B or any other member, and the shape thereof may be any shape as long as it crosses directly below the sandwiching surface between the main endless belt 25 and the vertical endless belt 31. A plate material that is elastically deformable is preferable.
Next, the transplanting work will be described. The transplanting machine 1 is run across the ridge N, and the ridge N is formed by the grooving disk 11 and the grooving device 8.
A planting groove is formed along the longitudinal direction, and the planting mechanism 9 and the seedling carrier 16 are driven by the power of the engine 5.

In this state, the operator of the seats 12L, 12R takes out the seedlings B from the seedling placing table 48 and separates them one by one on the working table 41, and the longitudinal direction of the separated seedlings B is taken as the front-back direction. The seedling base end b is placed on the pillow portion 22A of the protrusion 22 of the base endless belt 29 while being placed on the main endless body 25 and the leaf endless belt 27 of the lateral transport mechanism 17 with the front side as the leaf portion c. The conveyance interval on the conveyance section P is made constant. The seedlings B transported in this state are pressed by the elastic resistor 36 at the end of the lateral transport mechanism 17 and while being detached from the proximal endless belt 29 by the detachment guide 35, while being conveyed in the vertical transport mechanism 18.
It is smoothly and reliably delivered to the start end of the main endless body 25, and is sandwiched between the vertical conveying section S and the vertical endless belt 31 of the main endless body 25, whereby the conveying direction is changed from the horizontal direction to the downward direction, and the vertical conveying mechanism 18 It is conveyed to the vicinity of the lower end of and is supplied to the planting disc 49.

The seedling B inserted between the pair of planting discs 45 of the planting mechanism 9 is sandwiched between the planting discs 45 with the base end portion b positioned outside the planting discs 45, and then the planting discs 45. Is conveyed to the lower side while receiving the pressing action of the pressing wheel 46, is opened at the lower part of the planting disc 45, and is self-supported in the planting groove with the base end portion b facing downward, and then by the soil cover mechanism 10. It is covered with soil. The present invention is not limited to the above-mentioned embodiment, but can be modified in various ways. For example, transplanter 1
Arranges the engine 5, the planting mechanism 9, the swing frame 14, the seedling transfer device 16, etc. in the center of the vehicle body 2 in the left-right direction,
Groover 8, planting mechanism 9, soil cover mechanism 10, etc. 1
You may make only a group.

The ridge N is provided with a rolling wheel that rotates while being grounded. The rolling wheel is used to drive power to drive the planting mechanism 9 and / or the seedling transfer device 16 and to change their operating speeds. You may. As the elastic resistor 36, a leaf spring, a piano wire or the like may be used instead of the coil spring. The starting end side of the base endless belt 29 is projected outward from the starting end sides of the main endless belt 25 and the leaf endless belt 27,
The base end portion b is engaged with the protrusion 22 on the cover 40 or the work table 41, and the midway portion a and the leaf portion c are moved onto the main endless belt 25 and the leaf endless belt 27 together with the movement of the base endless belt 29. It may be posted.

[0033]

According to the present invention described in detail above, in the lateral conveying section P, even the soft seedling B can be placed and supported as a whole by the main endless belt 25, the leaf endless belt 27 and the base endless belt 29. , The seedlings B can be transported in a proper state with proper postures, and the seedling placement pitch is set at the base end b of the seedlings B which is not wide, so that the planting pitch can be made more accurate, and the vertical transport unit S
Since only the middle part a is sandwiched, the influence on the growing of the crop is reduced.

[Brief description of drawings]

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

FIG. 2 is a rear view of the main part.

FIG. 3 is a partial cross-sectional plan view of the same main portion.

FIG. 4 is a side view of a seedling transport device and a planting mechanism.

FIG. 5 is a perspective view showing a modified example of the protrusion of the proximal endless belt.

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

FIG. 7 is a plan view of the entire transplanter.

FIG. 8 is a front view of the entire transplanter.

FIG. 9 is a front view of defective delivery seedling discharging means.

[Explanation of symbols]

1 transplanter 2 car body 9 Planting mechanism 16 Seedling carrier 17 Horizontal transport mechanism 18 Vertical transport mechanism 22 protrusion 22A pillow 22B Positioning part 25 Main Endless Belt 27 Leaf part end strip 29 Base endless belt 31 Vertical endless belt 35 Release Guide 36 Elastic resistor 41 Workbench B seedling N ridge P Horizontal transport section S Vertical transport section a midway part b Base end c leaf

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-8-140426 (JP, A) JP-A-49-99811 (JP, A) Actual development S60-164822 (JP, U) Actual development S60- 100917 (JP, U) S. 63-31522 (JP, Y1) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 350-367

Claims (5)

(57) [Claims] 1. A main endless belt on which a midway portion of a seedling can be placed is arranged so as to be able to run from a substantially horizontal horizontal transfer section to a substantially vertical lower transfer section, and along the horizontal transfer section of this main endless band. , Arranging a base endless belt for placing and guiding the base end portion of the seedling and a flat leaf endless belt for placing and guiding the leaf portion of the seedling, and along the lower conveyance section of the main endless belt,
There is a vertical endless band that moves downward while holding the middle part of the seedling together with the main endless band and transfers the seedling leaf part to the planting mechanism.The base endless band is provided with a protrusion that determines the seedling placement pitch. cage, the transfer terminal end side of the proximal endless band, transplanter, characterized in that are only set a withdrawal guide to remove the Naemoto end that is sandwiched between the main endless belt and the vertical endless belt from the proximal end endless belt Seedling carrier. 2. The projection of the base endless belt has a pillow portion on which the seedling base end portion is placed, and a positioning portion protruding above the pillow portion, and has a substantially L shape or a substantially U shape in a front view. The seedling conveying device of the transplanter according to claim 1, wherein: 3. A main unit is not provided on the transporting end side of the base endless belt.
When sandwiching the middle part of the seedling with the end strip and the vertical endless strip, the base end of the seedling
Providing an elastic resistor that elastically presses the base endless belt side
The seedling carrier device of the transplanter according to claim 1 or 2, wherein 4. The leaf endless belt has a main endless belt width.
Characterized by being set to be approximately the same as or wider than the width
The seedling carrier device of the transplanter according to any one of claims 1 to 3 . 5. The starting end side of the horizontal conveying section of the main endless belt,
A worktable on which seedlings can be placed and which can be folded or fixed
Only wherein the are transplanter seedling conveying apparatus according to claim 1.