KR100540921B1 - Seedling Removing Machine - Google Patents

Abstract

The present invention relates to a seedling transplanter, which allows for compactness of the body, reduction in weight and simplification of the seedling conveying unit, and sufficiently secures the inclination range of the gas, and does not impair the workability of seedling supply. An object of the present invention is to provide an arrowhead seedling implanter.

In order to achieve the above object, the present invention is a front and rear on the outer periphery surface of the wide endless belt that is free to bend to carry the arrow shaped seedlings for transplantation onto the traveling part 1 and the traveling part 1 which drive the body by itself. In the circumferential direction, a plurality of plate-shaped partition members are installed in the circumferential direction at predetermined intervals, and a portion fitted in the circumferential direction by the partition member is composed of the seedling receiving portion, and the upper transverse conveying portion 3a and the lower conveying portion 3b and Seedlings conveyed to seedling take-out point via seedling conveying part 3 having rising conveying part 3c and descending conveying part 3b of seedling conveying part 3, The seedlings are transplanted into the field between the ascending and descending by holding the base part of the seedlings and viewing the gas from the side to draw a closed loop locus.

Seedling transplanter, traveling part, seedling receiving part, seedling conveying part, seedling holding part

Description

Seedling Removing Machine

BRIEF DESCRIPTION OF THE DRAWINGS The side view of the seedling transplanter of embodiment of this invention.

Fig. 2 is a plan view of Fig. 1 seedling transplanter.

Fig. 3 is an enlarged perspective view of a seedling transplant part of Fig. 1 seedling transplanter.

4 is a rear view of the seedling conveyance part of the seedling transplanter in FIG. 1.

5 is a view showing a schematic driving system of a seedling conveying unit and a seedling transplanter of FIG. 1 seedling transplanter;

Fig. 6 is a cross-sectional schematic diagram of a drive system in a transplant case of Fig. 1 seedling transplanter.

7 is a view showing the trajectory of the tip of the seedling transplanter of FIG. 1 seedling transplanter.

8 is a cross-sectional side view showing a seedling transplanted state.

9 is a partial plan view of the outer circumferential surface of the wide endless belt of the seedling transplanter in FIG.

Fig. 10 is an enlarged view of the circumferential rotational shaft portion of the seedling conveying part of the seedling transplanter in Fig. 4;

Fig. 11 is a perspective view of Fig. 10 seedling holding unit.

12 is a partial perspective view of the lift carrier of the seedling transplanter and the seedling transplanter in FIG. 4.

(Explanation of the sign)

1 ... drive mechanism 2 ... steering wheel

2a ... handle 2b ... handle frame

3 ... shaft conveying part 3a ... seedling conveying part

3b ... lower conveyance part 3c ... upward conveyance part

3d ... lower transverse carrier 4 ... seedlings

4a ... working part 4a1, 4a2 ... narrowing zone

4b ... support 4b1, 4b2 ... support arm

4c1, 4c2 ... closing member 4d1, 4d2 ... roller

4e ... spring 5 ... engine

6 ... rear wheel 7 ... front wheel

8 ... Mission Case 9 ... Electric Case

10, 17 ... axle 11 ... arm

12 ... lifting hydraulic cylinder 12 ... piston rod

13 ... scale 14 ... loading

15 ... Hydraulic cylinders for horizontal control of left and right 16 ... Front wheel support frame

18 ... implanted transmission case 18a ... first case part

18b ... 2nd case part 18c ... 3rd case part

19 ... drive arm 20 ... drive shaft

21 ... support linkage 22 ... swinging link

23 ... support frame 24 ... sensor

25 ... support shaft 26 ... seedling receptor

26a ... wide endless belt 26b ... partition member

26c ... seedling holding part 26d ...

27a ... sponge 27b ... brush

27 ... sandwiching member 28 ... mounting member

29, 30, 31, 32 ... rotating body 33 ... rotating shaft

34 ... interlock rod 35 ... intermittent drive

36 ... tension roller 40 ... cover roller

41 ... support member 42 ... support device

43 ... handle 44 ... spring

45 ... 2nd suppression wheel 46 ... 2nd suppression wheel support member

47 ... horizontal axis 48 ... arm

49 ... cam body 50 ... spring

51 ... seedling removing member 54 ... cam

55 ... connecting shaft 61 ... guide roller

60 ... frame for spare seedlings 80 ... transmission drive

82 ... Eccentric Gear 83 ... Circular Gear

85 ... input shaft 86 ... output shaft

87 ... round gear 89 ... sprocket

89a ... chain 90 ... shift lever

91 ... shift pin 91a ... shift key

91b ... shifter 93 ... eccentric gear

The present invention relates to a seedling transplanter for transplanting arrow-like seedlings, such as sugarcane seedlings, into a field.

[Prior art]

Conventionally, as described in Japanese Unexamined Patent Publication No. 2002-305918, a driving portion provided with drive wheels on the left and right sides of a body and provided so that the left and right drive wheels can be changed to different heights, and an arrow-shaped seedling are provided. A seedling conveying part for transporting seedlings by circumferentially rotating a plurality of seedling accommodating parts to be accommodated one by one in a forward and backward direction, and arranging the seedling accommodating parts up and down in a circumferential direction around an axis facing an axis; In the seedling transplanter provided with the seedling transplant body which hold | maintains the base part side of the arrow-shaped seedling conveyed below by the seedling conveyance part, and transplants it to a field, the said seedling conveyance part is left-right outer side from a gas upper part side. The upper transverse conveying unit to be conveyed inward from the inside and the seedling accommodating unit conveyed by the upper transverse conveying unit from the lower side of the body. The lower conveyance part which carries out descending conveyance toward the seedling taking-out location which paper-plants take out a seedling, and the seedling accommodation part conveyed by the said lower conveyance part are conveyed from the seedling taking place to the inclined upper side of a gas outside, and the conveyance start of the said upper side conveyance part starts There is known a seedling transplanter having a lift carrier that returns to the short side, wherein the lift carrier is disposed at a position overlapping the upper side of the drive wheel from between the left and right drive wheels.

Further, as described in Japanese Unexamined Patent Application Publication No. 2000-333515, a plurality of seedling conveying members are installed on the outer circumferential surface of the wide endless belt, which is free to bend, in the circumferential direction with a plurality of plate-shaped partition members installed at circumferential directions. The seedling holding part which constitutes each part accommodated in the circumferential direction by the said partition member as a seedling accommodation part, and maintains the base part side part of an arrow-like seedling in the front-back and one end of the part inserted in the circumferential direction by the partition member of the said wide endless belt. There is also known seedling transplanter.

In addition, as for the above-mentioned patent documents, as for the upward conveyance part of a seedling conveyance part,

It is formed linearly.

In Japanese Unexamined Patent Application Publication No. 2002-305918, since the seedling conveying part is disposed so that the lift conveying part overlaps the upper part of the driving wheel from between the left and right driving wheels, the body can be made compact. However, when changing the left and right driving wheels to different heights so as to make the vehicle body horizontally and horizontally corresponding to the inclination of the field, the range of the height change is formed linearly and is regulated by the lift carrier provided to overlap the upper part of the driving wheels. For this reason, the inclination adaptability of gas is low. In addition, if sufficient inclination adaptability of the base is to be ensured, the section of the upper transverse conveying section is shortened or arranged at a high position of the base, which makes it difficult to carry out seedling supply work and deteriorates workability.

In addition, as described in Japanese Unexamined Patent Application Publication No. 2000-333515, the base conveying part is arranged so that the upward conveying part overlaps the upper part of the driving wheel from between the left and right driving wheels, so that the body can be made compact. In addition, since it is comprised using the wide endless belt in a seedling conveyance part, weight reduction and a simplification of a seedling conveyance part are aimed at. By the way, it is unclear whether the left and right drive wheels are configured to be changed to different heights. However, even if it is configured as such, the range of the height change is linear as described in Japanese Unexamined Patent Publication No. 2002-305918. It is regulated by the rising conveyance part formed so that it may overlap with the upper side of a drive wheel, and for this reason, it can be said that the inclination adaptability of a gas is low.

In view of the above, the present invention aims to make the body compact, to reduce the weight and simplify the seedling conveying part, to secure the inclination range of the gas sufficiently and not to impair the workability of seedling supply. It is a task to do it.

MEANS TO SOLVE THE PROBLEM This invention employ | adopted the following structure in order to solve the said subject.

The invention of claim 1 further includes: a driving unit in which drive wheels are provided to the left and right of the body so that the left and right drive wheels can be changed to different heights; The seedling conveying part which conveys a seedling by carrying out the circumferential rotation movement in a line around the rotating shaft which an axial center faces in the front-back direction which installed the plurality of seedling accommodation parts up and down, and the seedling conveying part is conveyed below by the said seedling conveying part, In the seedling transplanter provided with the seedling transplant body which hold | maintains the base part side of an arrow-like seedling, and transplants it to a field, The said seedling conveyance part is a plate-shaped partition member which follows the front-back direction on the outer peripheral surface of the wide endless belt which is free to bend. And install a plurality of parts in the circumferential direction at predetermined intervals to collect each of the places that were fitted in the circumferential direction by the partition member. A seedling holding portion configured as a seed holding portion and holding a base portion side portion of an arrow-like seedling at front and rear ends of a portion fitted in the circumferential direction by a partition member of the wide endless belt, wherein the seedling conveying portion is formed by The upper transverse conveyance part which conveys inward from the left and right outer side from the upper side, and the seedling accommodation part conveyed by the said upper transverse conveyance part descend | fall down and conveyed toward the seedling taking-out place which a seedling transplanter extracts a seedling from under a gas. A conveying part and a rising conveying part which conveys the seedling receiving part from the seed taking-out point to the gas outward inclined upper side by a said lower conveying part, and returns it to the conveyance start end side of the said upper lateral conveying part, and the said rising conveying part is a drive wheel of the said right and left It is arrange | positioned in the position which overlaps on the upper side of a drive wheel from the position between the, and the width | variety of the said raise conveyance part It is a seedling transplanter characterized by the structure which the said pushing conveyance part bends in the circumference of a circumference by pushing the tension roller on the outer peripheral surface of an endless belt.

According to the invention of claim 1, the seedling transplanter is driven by the drive wheels left and right of the driving unit driven by rotation, and the seedling conveying unit is arranged in a line around an axis in which an axis center is oriented in the front-rear direction in which a plurality of seedling receiving units are provided up and down. It moves circumferentially and conveys the arrow-shaped seedlings accommodated one by one by the worker in the posture direction to front-rear direction. As for the arrow-like seedling conveyed by the seedling conveyance part, a seedling transplant maintains the base part side, is taken out, and it transplants into a field.

The seedling conveying part is provided with a plurality of plate-shaped partition members along the front and rear direction on the outer circumferential surface of the wide endless belt that is free to bend at a set interval in the circumferential direction, and each of the places sandwiched in the circumferential direction by the partition member is accommodated. It is added. In addition, the base side portion of the arrow-like seedling supplied to the seedling receiving portion is held and supplied to the seedling holding portion provided at the front and rear ends of the portion fitted in the circumferential direction by the partition member of the wide endless belt. In addition, supply of seedlings to this seedling conveyance part is supplied to the seedling accommodation part to which the upper horizontal conveyance part which conveys a seedling accommodation part transversely from the left-right outer side to the inside in a gaseous-phase side is conveyed. The seedling receptacle supplied with the seedlings from the upper transverse conveying unit is conveyed to the seedling extraction point via a lowering conveying unit which is lowered and conveyed under the gas, and the seedling transplanted body is taken out and transplanted into the field. The seedling accommodating part after a seedling is taken out returns to the conveyance start end side of an upper horizontal conveyance part via the raising conveyance part conveyed to a gas outer side inclined upper side.

In addition, when the field seedling is inclined to the left and right, the seedling transplanter changes the left and right driving wheels to different heights by artificial or automatic operation, so that the base is left and right horizontally or appropriately inclined posture. At this time, the rising conveying part of the seedling conveying part is overlapped on the upper side of the driving wheel between the left and right driving wheels, but the tension roller can be pushed on the outer circumference of the wide endless belt of this rising conveying part, so that the rising conveying part is deflected in the circumference. Therefore, the vertical movement range of the drive wheel located below the lift carrier is sufficiently secured.

The invention described in claim 2 is characterized in that the partition member, which is installed on the outer circumferential surface of the wide endless belt, is provided at a front and rear width shorter than the front and rear width of the wide endless belt, and a front end portion is larger than the wide endless belt front end portion. In the rear side, the rear end is provided so as to be the front side of the rear end of the wide endless belt,

On the outer peripheral surface of the wide endless belt, place the tension roller at a location without a partition member at a location between one end side of the front and rear direction of the belt and the front end portion of the front and rear ends of the partition member at the other end side of the front and rear direction of the belt. It is a seedling transplanter of Claim 1 characterized by the arrangement.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the partition member mounted on the outer circumferential surface of the endless belt has a front and rear width shorter than the front and rear width of the wide endless belt, and the front end portion is wide endless. It is rear side at a belt front end part, and a rear end part is a front side at the rear end part of the said wide endless belt. The tension roller has a wide width at one end of the belt in the front-rear direction at the outer peripheral surface of the endless belt,

The other end side of the belt is pushed to the part without the partition member between the seedling retaining portion and the front and rear ends of the partition member, so that the tension of the wide endless belt can be balanced in the front and rear, and the tension roller is also provided. It is possible to drive the seedling conveying unit accurately and smoothly and circumferentially without falling over the partition member. Furthermore, if the contact points of the tension rollers are set on the outer circumferential surface of the end side of the belt at both the front and rear sides, the seedling retaining portion is configured to protrude the end of the belt from the seedling holding portion to the outside in the front-back direction. In this case, a situation such as being caught by a belt end projecting outward in the front-rear direction tends to occur, but such a situation can be avoided by the above configuration.

The invention described in claim 3, wherein the partition member, which is installed on the outer circumferential surface of the wide endless belt, is installed at a front and rear width shorter than the front and rear width of the wide endless belt, and a front end portion is rearward of the wide endless belt front end portion. A rear end portion is installed to be front side than the rear end portion of the wide endless belt, and a plurality of transfer holes are coupled to the wide endless belt at a circumferentially set interval at a predetermined circumferential direction at the circumferential direction of the drive rotator. And the transfer hole of the wide endless belt meets the outer circumferential surface of the wide endless belt, and is located between one end side of the front and rear direction of the belt and between the seedling holding unit and the front and rear end of the partition member at the other end side of the front and rear direction of the belt. It is a seedling transplanter of Claim 1 or 2 characterized by being installed in the place without a partition member at the place of.

According to invention of Claim 3, in addition to the effect | action of invention of Claim 1, 2, the conveyance hole of the wide endless belt is the one end side of the front-back direction of the said belt, and the front-back of the said belt in the outer peripheral surface of the wide endless belt. Since it is provided at a location where there is no partition member between the seedling holding portion and the front and rear ends of the partition member on the other end side, the wide endless belt can be driven and rotated in a balanced manner throughout the front and rear, and the seedling conveying portion can be accurately and smoothly circumferentially. Rotation can be driven. Furthermore, when the conveyance hole of the wide endless belt is set to the outer peripheral surface of the end side of the belt at both front and rear sides, the seedling holding portion projects the end of the belt outward in the front and rear direction, and the seedling holding is maintained when the seedling transplanter takes out the seedling. It is easy to occur a situation such as being caught by a belt end projecting from the part to the outside in the front-rear direction, but the situation can be avoided by the above configuration.

Embodiment of the Invention

The seedling transplanter of embodiment of this invention is demonstrated with drawing.

As an example, the case of transplanting a sugar cane seedling as an arrow-shaped seedling. In addition, in the following description of the following example, when it says before or after, the side which arrange | positioned the steering wheel 2 is called back, and the opposite side, ie, the side which arrange | positioned the engine 5, is moved forward. When it is called right or left, it is said that the right side is to be seen from the operator toward the front of the body at the rear of the body, and the left side is to the left.

1 is a side view of a seedling transplanter according to an embodiment of the present invention, FIG. 2 is a plan view of the seedling transplanter of FIG. 1, FIG. 3 is a perspective view in which part of the seedling transporter and seedling transplanter of the seedling transplanter of FIG. 1 are omitted. 4 is a rear view in which part of the seedling conveying unit and the seedling transplanter of the seedling transplanter of FIG. 1 are omitted.

The seedling transplanter has been conveyed by the seedling conveying part 3 which conveys a sugar cane seedling to the base | substrate provided with the traveling device 1 and the steering wheel 2, and the said seedling conveying part 3; It is a seedling transplanter provided with the seedling transplanter (4) for transplanting seedlings to the field.

In the illustrated example, the traveling device 1 includes an engine 5, a pair of left and right rear wheels 6 in which power of the engine 5 is transmitted and driven to rotate, and the front of the rear wheels 6. A pair of left and right front wheels 7 in which rolling is supported freely is provided.

In the rear part of the engine 5, the mission case 8 is arrange | positioned, The mission case 8 has the case part extended from the left part to the left side of the engine 5, and this is the left part of the engine 5, It is connected. The output shaft of the engine 5 enters this case part, and a power is transmitted to the transmission mechanism in the mission case 8. The front end of the wheel drive shaft which is freely provided with the rotary case 9 on the left and right sides of the mission case 8 and protrudes to the left and right sides from the mission case 8 at the center of the rotary case of the electric case 9. The electric power for traveling is transmitted to the electric mechanism in the electric case 9 by entering. Then, the driving power is extended to the rear side of the body via the transmission mechanism in the transmission case 9, and is transmitted to the axle 10 protruding toward the rear end side thereof so that the rear wheels 6 are driven to rotate.

Moreover, the installation part to the mission case 8 of the transmission case 9 is extended upwards.

The arms 11 are integrally installed, and both of the left and right sides of the top balance scale 13 are freely provided with rotational movement around the upper and lower shaft centers at the front end of the piston rod of the lifting hydraulic cylinder 12 fixed to the mission case 8. We are connected with wealth. The right side of the connection is connected at the rod 14

The left side is connected to the left and right horizontal hydraulic control cylinder 15 for telescopic operation.

The lifting hydraulic cylinder 12 is operated so that the piston rod 12a turns to the rear of the body.

When released, the left and right arms 11 are rotated backwards, and accordingly the electric case

(9) rotates downward, and the gas rises. On the contrary, when the piston rod 12a of the lifting hydraulic cylinder 12 enters the front of the body, the left and right arms 11 rotate forward and accordingly, the transmission case 9 rotates upward. , The gas descends. The lifting hydraulic cylinder 12 is configured to operate the gas so as to have a set height with respect to the height of the ridge on the basis of the detection result of the sensor 24 that detects the height of the ridge top surface with respect to the body. (2) It is configured to operate to raise or lower the gas in accordance with the artificial operation of the operating tool disposed nearby.

In addition, when the left and right horizontal control hydraulic cylinder 15 is stretched and operated, the top and bottom balance 13 is connected to the upper and lower shaft centers connected to the tip of the piston rod 12a of the lifting and lowering hydraulic cylinder 12 at the left and right central portions thereof. Rotate and move up and down alternately the left and right transmission case (9)

Tilt the gas from side to side. The horizontal hydraulic control cylinder 15 is based on the detection result of a sensor (not shown) which detects the left and right inclination of the gas with respect to the left and right horizontal, and is configured to operate the gas horizontally.

When the left and right driving wheels are changed to different heights by artificial or automatic operation so that the aircraft is horizontally horizontal, the rising conveying part 3c of the seedling conveying part 3 is formed by the rear wheels 6 for the left and right driving. Although it overlaps with the upper part of the rear wheel 6 between them, the tension roller 36 can be pushed on the outer periphery of the wide endless belt 26a of the said upward conveyance part 3c, and the upward conveyance part 3c is a circumference inner side. Since it is refracted by, it is possible to sufficiently secure the moving distance range of the rear wheels 6 located below the lift carrier 3c.

The left and right front wheels 7 are located at the lower end side of the arm portion extending downward from the left and right side portions of the front wheel support frame 16 freely provided with rotational movement around the axial center in the front-rear direction at the left and right center positions below the engine 5. It is installed freely on the fixed axle (17). Accordingly, the left and right front wheels 7 are freely rolled around the center of the body in the left and right center front and rear directions.

The steering wheel 2 is provided at the rear end of the handle frame 2b which fixed the front end to the mission case 8. The handle frame 2b is disposed at a position tilted from the left and right centers of the body to the right side and extends rearward, and extends inclined from the front and rear middle portions to the rear upper portion. The steering wheel 2 extends rearward left and right from the rear end of the steering wheel frame 2b, and makes each rear end a grip part 2a of the steering wheel 2. The left and right grip portions 2a of the steering wheel 2 are set to a suitable height so that an operator can hold the grip portions 2a comfortably by hand. In addition, in the drawing example, although the grip part 2a is divided into left and right, the rear part of the left and right of the steering wheel 2 may be connected to each other left and right, and the connection part may be used as a grip part.

In addition, although the traveling apparatus 1 is a four-wheeled structure, the two-wheeled structure of only a pair of right and left drive wheels may be sufficient, and it may be a suppression wheel which electric-drives a top surface instead of a front wheel. . It may also be a crawler type traveling device.

Next, the seedling transplant body 4 and the seedling conveyance part 3 are demonstrated.

The seedling transplant body 4 is connected with the drive part which raises and lowers the seedling transplantation part 4a, and the seedling transplantation part 4a of a said seedling transplant body 4, a pair of seedling transplanting engorges. ), 4al, 4a2) act on the seedlings conveyed by the seedling conveying unit 3 to transplant the seedlings into the field.

The drive part which drives the seedling transplantation body 4 is installed in the implanted transmission case 18 which embeds the power transmission mechanism which receives the driving power of the seedling transplantation body 4 from within the mission case 8, and transmits it. As shown in the drawing example, the implanted transmission case 18 has a front portion of the mission case 8.

The first case part 18a extending from the rear side obliquely upward from the rear side of the first case part 18 and the upper left side of the first case part 18a freely rotating around the axial center in the left and right direction. Power for driving the seedling transplantation body 4 in the 2nd case part 18b which extends, and the 3rd case part 18c which is fixed to the left end part of the 2nd case part 18b, and extends obliquely downwards backward. Built-in power mechanism to deliver

In addition, the transmission mechanism built into the first case portion 18a includes an intermittent drive mechanism for stopping the seedling transplantation body 4 at a position at the uppermost position of the lifting movement or at the vicinity thereof, and the seedling transplantation body 4. ) And the seedling conveying unit 3 is stopped. The time to stop by the intermittent drive mechanism is adjusted by the transmission mechanism with which the said intermittent drive mechanism is equipped, and by this adjustment, the seedling transplantation time by the seedling transplantation body 4 is changed and adjusted.

And the seedling transplant body 4 is the drive arm 19 which drive-drives as the drive part, and

It is connected and driven. The drive arm 19 is fixed to the drive shaft 20 which protrudes from the rear right part of the third case part 18c and drives rotation. Then, the upper end of the support link portion 21 of the seedling transfer body 4 is rotatably connected to the distal end of the drive arm 19, and the front end of the swinging link 22 is rotated to the lower end of the support link portion 21. This is connecting freely.

Further, the rear end of the swing link 22 is freely supported by the support shaft 25. One end of the support shaft 25 is rotatably supported at the rear end of the support frame 23 provided integrally with the third case portion 18c.

In addition, as shown in the enlarged perspective view of the part of the seedling transplant body 4 of FIG. 3, the seedling transplant body 4 is equipped with the support part 4b which consists of a pair of support arms 4b1 and 4b2, and the tip part of the said support part 4b. A pair of seedling transplanting gripping zones 4al and 4a2 for supporting the seedlings, a pair of opening and closing members 4c1 and 4c2 for supporting the base portions of the support arms 4b1 and 4b2 of the support portion 4b, and the opening and closing members 4c1 and 4c2. It consists of rollers 4d1 and 4d2 which rotation was provided in the base part side of a vortex freely. The pair of opening / closing members 4c1 and 4c2 intersect freely in the middle of the rotational movement, and is normally pushed by the spring 4e in the direction in which the narrow strips 4a1 and 4a2 are closed. Moreover, the rollers 4d1 and 4d2 abut on the cam surfaces formed on the left and right both sides of the disk-shaped cam 54 described later.

The cam 54 can be integrally installed at the distal end of the drive arm 19, and is provided such that the upper end of the support link portion 21 is integrally rotated to the connecting shaft 55 on which the rotational movement is freely installed. . The cam surface formed on the left and right both sides of the disk-shaped cam 54 is comprised by changing the thickness of the left and right side of the outer peripheral side part which the said roller 4d1, 4d2 abuts, and a pair of pincer 4a1, 4a2 is a seedling conveying part ( 3) The seedlings are removed from the seedlings, and in order to take the seedlings in the soil, the seedlings are closed in the section where the seedlings are sandwiched, and the opening and closing operation is performed so that the seedlings are opened in the other sections. The cam 54 having the cam surface formed as described above is installed with the posture of the drive arm 19 adjusted so as to be in the phase of the cam surface to be opened and closed as described above.

Therefore, when the driving shaft 20 is driven to rotate and the driving arm 19 rotates, the support link portion 21 in which the rotational movement is freely set at the front end of the driving arm 19 and the lower end of the swinging link 22 is set. Simultaneously with one locus, the cam surface of the disk outer peripheral side which abuts so that the rollers 4d1 and 4d2 may be fitted from the left and right of the cam 54 is rotated with respect to the rollers 4dl and 4d2. Then, the left and right upper ends of the opening and closing members 4cl and 4c2 are extended left and right by the action of the cam surface of the rotating cam 54, so that the support arms 4b1 and 4b2 open and close to the left and right, and the left and right lateral pinch 4al, 4a2 opens and closes.

As a result, the pair of narrow strips 4a1 and 4a2 of the seedling transplanter 4 are closed when passing through the seedling extraction point P of the seedling conveying unit 3, and the base part side portion of the arrow-shaped seedlings conveyed therein is sandwiched. I support it. Then, after entering into the soil with the narrow regions 4a1 and 4a2 closed, they move in the direction according to the gas advancing direction, and insert the inserted seedlings into the soil. Then, after moving the set distance in the direction along the gas traveling direction, the narrowing zones 4a1 and 4a2 are opened to open the seedlings, and then operate to ascend and exit the soil.

By the way, the connecting shaft 55 integrally attached to the distal end of the driving arm 19 allows the connecting shaft 55 to be rotated around its axis without changing the mounting position of the driving arm 19. Cam provided to integrally rotate to the connecting shaft 55 by providing the adjustment mechanism

Opening and closing of the narrow zone 4al, 4a2 by adjusting the cam surface of the 54 to move around the shaft center of the connecting shaft 55

The timing can be easily adjusted.

By slidably installing the cam 54 in the left and right directions along the connecting link 55, the tip ends of the pair of seedling transplanting narrowing zones 4a1 and 4a2 can also be fine-adjusted in the left and right direction, so that the seedling transplanting narrowing zones 4a1 and 4a2 When taking out seedlings from the seedling accommodation part 26 of the seedling conveyance part 3, when the position of the stem support member 26c and the seedling transplantation narrowing zone 4a1, 4a2 is shifted left and right, a seedling transplantation narrowing zone is performed as mentioned above. By fine-adjusting the line unit values of 4a1 and 4a2 from side to side, the position shift can be easily eliminated.

According to the above configuration, the seedling transfer body 4 has a support link when the driving arm 19 is driven to rotate.

The seedling transplanting part 4a of the tip part (lower end) of the seedling transplanter 4 integral with the part 21 moves by drawing the locus T and / or the locus T ^, (Fig. 7) as shown in FIG. do. In addition, the trace T as shown in FIG. 6 is a movement trace which the seedling transplanting part 4a draws with respect to a gas at the time of gas stop, and the trace T 'shown in FIG. It is the motion trace which the seedling transplanting part 4a draws with respect to the field at the time of advanced driving.

The structure of the schematic drive system of the seedling transplant body 4 is demonstrated. Fig. 5 shows a schematic drive system of the seedling conveyance unit 3 and the seedling transplanter 4, and Fig. 6 shows a cross-sectional schematic diagram of the drive systems in cases 18b and 18c.

Shifting transmission part which makes it possible to change the speed when the implantation body 4 moves to the direction according to a gas advancing direction in the rolling system (on the electric path) which transmits power to a seedling transplant body 4, ie Change the average moving speed of the section from the point where the seedling transplanting part 4a of the seedling transplanting body starts to move in the direction along the gas traveling direction in the soil to the point where the movement in the direction ends. A shift transmission unit 80 is provided.

The variable speed transmission part 80 is provided with a plurality of transmission parts at the same speed ratio in which the rotation speed when the seedling transfer part 4a of the implant 4 moves in the soil in the direction along the gas advancing direction is installed. And switching operation means for alternatively switching the plurality of transmission parts to the electric state. At least one of the plurality of transmission parts is constituted by an inconstant speed transmission part by an eccentric or non-circular gear, a sprocket, or the like.

In addition, as shown in FIG. 5 and FIG. 6, the inconstant speed transmission part is made into the inconstant speed electric gear pair by the eccentric or non-circular gear pair which the pitch circle radius of the gear teeth changes during 1 rotation, and the other transmission parts are constant speed transmission. When a gear pair or another inconstant speed gear pair is installed so as to be switchable between an electric transmission state by the former transmission unit and an electric transmission state by the latter transmission unit, a plurality of gears provided on the input shaft above the transmission and the gears While setting the rotation ratio with a plurality of gears which are installed under each of the transmission lowering each other, one to one, respectively, a plurality of gears installed on the input shaft of the upper transmission is installed so as to rotate integrally with respect to the input shaft, The gears may be freely rotated with respect to the output shaft, and the switching operation means may be provided below the electric drive. Is configured to switch only one gear of the plurality of gears into a state of integrally rotating with the output shaft, and the output shaft and the gear are each configured to rotate integrally by combining at one place. As a result, the phase of the eastern part of the inconstant speed is not shifted by the operation of the switching operation means, so that the switching operation can be performed easily and accurately.

The specific example of the speed change transmission part 80 shown in FIG. 6 is demonstrated. The variable speed transmission section 80 includes a constant speed transmission section that is electrically driven via circular gears 83 and 87 that are constant speed driven between the transmission shaft 85 serving as the input shaft and the transmission shaft 86 serving as the output shaft, and an eccentric gear that performs inconstant speed transmission. The inconstant speed transmission part which is transmitted via 82 and 93 in parallel is provided in parallel, and the rotation ratio of the constant speed transmission part and the rotation ratio of the inconstant speed transmission part are set to 1 to 1, respectively, and the transmission state via the constant speed transmission part and the inconstant speed transmission part are Install a switching operation mechanism that alternately switches to the motorized state. In the transmission state via the inconstant speed transmission part, the long diameter of the eccentric gear 93 on the 86 shaft of the transmission shaft where the teeth of the short diameter portion of the eccentric gear 82 on the 85 shaft of the transmission shaft becomes the input shaft. It is set so that when it engages with the teeth of the part, that is, in a slow transmission state, the seedling transplanting part 4a of the seedling transplanter 4 enters the soil and moves in the direction along the gas advancing direction. As a result, and to seedlings are corrosion body (4) when the gas is moving forward while operating in the trajectory T, when switched to the power state via parts of the constant velocity transmission, the operation to the trajectory ^T, indicated by the dashed line of Figure 7, When it is converted to the transmission state via the inconstant speed transmission part, it operates with the trace T "shown by the dashed-dotted line of FIG. 7, and the track T" at the time of constant speed transmission is compared with the track T 'at the constant speed transmission. After the tip of the implant 4 enters the soil, the distance to travel in the direction along the gas traveling direction is shortened.

Therefore, as shown in Fig. 8, the insertion length of the seedlings at constant speed transmission becomes longer as compared with the inconstant speed transmission, and the insertion length of the seedlings at the constant speed transmission becomes shorter than in the constant speed transmission. Further, in the inconstant speed transmission part, when the teeth of the long diameter portion of the eccentric gear 82 on the input shaft (motor shaft 85) are engaged with the teeth of the short diameter portion of the eccentric gear 93 on the output shaft (motor shaft 86), that is, fast When the seedling transplanting part 4a of the seedling transplanter 4 is driven into the soil and moves in the direction along the gas traveling direction in the transmission state, the seedling transplanter is compared with the trajectory T 'at the constant speed transmission. After the tip of (4) enters the soil, the distance moving in the direction along the gas traveling direction becomes long, and the insertion length of the seedlings becomes long. The inconstant speed transmission part thus set may be added to the variable speed transmission part 80 again, replaced with the constant speed transmission part, or the setting of the inconstant speed transmission part may be changed in this way.

In addition, in the shift transmission part 80 shown in FIG. 6, an input shaft is the transmission shaft 85 which protrudes into the 3rd case 18c from the 2nd case part 18b of the implanted transmission case 18, and The eccentric gear 82 and the circular gear 83 are provided in the part which protrudes in the 3rd case 18c of the coaxial 85 so that they may rotate integrally by engaging with the key provided in the said transmission shaft 85, and meshed with these gears 82 and 83, respectively. The eccentric gear 93 and the circular gear 87 are mounted on a transmission shaft 86 serving as an output shaft provided in the third case 18c. The eccentric gear 93 and the circular gear 87 are alternatively switched from the state of free rotation with respect to the transmission shaft 86 by the switching operation mechanism to the state of integral rotation with the transmission shaft 86. The sprocket 89 is installed in the transmission shaft 86 so as to rotate integrally, and there is a chain between the sprocket 89 and the sprocket installed on the drive shaft 20 provided at the rear end of the third case 18c. 89a), the power through the speed change transmission part 80 drives the seedling transplantation body 4.

In the switching operation mechanism, the axial slide is freely provided with the shift key 91a in one of the outer circumferential portions of the electric shaft 86 in the key groove formed in the axial direction from the mounting portion of the eccentric gear 93 to the mounting portion of the circular gear 87. The slide 91b is freely provided on the transmission shaft 86 in the axial direction while being engaged in the axial direction with respect to the shift key 91a.

A shift pin 91 which is moved in the axial direction by an operation of the shift lever 90 provided outside the third case 18c is engaged with the shift 91b. With the shift lever 90 moved to the position on the input shaft (drive shaft 85), the shift 91b moves to the circular gear 87 side (left of FIG. 6) so that the shift key 91a is moved to the key groove of the circular gear 87. It is inserted into the constant speed transmission state through the circular gears 83 and 87. When the shift lever 90 is moved in the direction indicated by the arrow F in FIG. 6 and is switched to the position toward the output shaft (drive shaft 86), the shift pin 91 is rotated in the direction indicated by the arrow G in FIG. 6 so that the shift 91b is eccentric. Shifting to the gear 93 side (right side in FIG. 6), the shift key 91a is fitted into the key groove of the eccentric gear 93, and is switched to the inconstant speed transmission state via the eccentric gears 82 and 93. FIG.

When the shift lever 90 is set at an intermediate position between the input shaft (motor shaft 85) position and the output shaft (motor shaft 86) position, the shift key 91a is not fitted into the key groove of the circular gear 87. It is in a non-driven state that does not fit into the keyway of the eccentric gear 93. Thus, the clutch operating device which stops the operation | movement of the seedling transplantation body 4 is comprised by the switching operation means so that switching operation to the non-electrical state which interrupted transmission to the output shaft from the input shaft side of the transmission transmission part 80 is possible. Can also be used as.

The seedling conveyance part 3 is the upper horizontal conveyance part 3a which conveys the seedling accommodating part 26 to the conveyance direction C from the left and right outer side to the inner side in the upper part of a body, as shown in FIG. The lower conveyance part 3b which carries out the seedling accommodating part 26 conveyed by the conveyance part 3a toward the seedling taking-off place P which the seedling transplant body 4 takes out a seedling from under a base, and the said A rising conveying part which conveys the seedling accommodating part 26 conveyed by the descending conveying part 3b to the conveyance start end of the said upper transverse conveying part 3a by conveying it from the seedling taking-out point P to the outward inclined upper side, 3c).

In addition, the seedling conveyance part 3 arrange | positioned so that said conveyance part 3a, 3b, 3c may be formed.

The wide endless belt 26a, which is freely curved, is turned on the rotating body 29 for driving rotation and the plurality of freely rotating rotors 30, 31, and 32, and the front and rear directions are provided on the outer circumferential surface of the wide endless belt 26a. A large number of plate-shaped partition members 26b are installed in the circumferential direction at predetermined intervals, and each of the locations fitted in the circumferential direction in the partition member 26b is configured as the seedling accommodation portion 26. In the partition member 26b of the wide endless belt 26a, the seedling holding part 26c which maintains the base part side of an arrow-like seedling by the left and right seedling clamping member is provided in the front and back one end of the part inserted in the circumferential direction, have. A plurality of transfer holes 26d (Fig. 1) are formed at both front and rear ends of the wide endless belt 26a at circumferentially set intervals, and projections of the outer circumference of the drive rotating body 29 are coupled to the transfer holes 26d. The wide endless belt 26a is circumferentially driven. In the example of illustration, the seedling holding part 26c comprises the seedling clamping member of the upper part of a seedling conveyance direction by the brush body which a hair-end faces toward the seedling clamping member of the seedling conveyance direction downward, and the seedling clamping member of a seedling conveyance direction downward. Is composed of an elastic member such as a sponge, and the base portion side portion of the arrow-like seedling is pushed and supported between these left and right seedling holding members.

The rotating body 29 which drives and rotates the seedling conveyance part 3 is installed and arrange | positioned so that it may rotate integrally in the front-back direction of the rotating shaft 33 arrange | positioned in the front-back direction at the left-right center from the base part, and freely rotates to the left-right outer side from the base part side. The rotating body comprised of the long roller back and forth is arrange | positioned, and the rotating bodies 31 and 32 which consisted of the long roller back and forth are inserted in the lower part of the base body, and are arranged side by side approaching from left to right. These rotating bodies 29, 30, 31 and 32 are supported by the support member assembled to the 3rd case 18c and the support frame 23. As shown in FIG. Then, the rotating body 29 for driving and rotating the seedling conveying unit 3, and the swing link 22 for supporting the lower end of the support link 21 of the seedling transfer body 4 through the interlocking mechanism through the power mechanism. I'm connected. The lower end of the interlocking rod 34 (FIG. 1) is crushed to the middle part of the swinging link 22, and the upper end of the interlocking rod 34 is connected to the intermittent driving device 35 constituted by the ratchet mechanism, and the intermittent driving device The intermittent drive output part of (35) is connected to the edge part of the rotating shaft 33 in which the rotating body 29 which drives and rotates the seedling conveyance part 3 is provided. The interlocking rod 34 reciprocates up and down by the up and down oscillation of the oscillating link 22, and the intermittent drive device 35 outputs the drive rotation during the up movement of this up and down reciprocation movement, and intermittently during the down movement. The drive device 35 is configured to stop the drive rotation output. Therefore, when the seedling transplanting body 4 opens the seedlings in the soil and ascends, the seedling conveying unit 3 is driven, and the seedling transplanting body 4 takes the seedlings from the seedling extraction point P and plunges them into the soil. The seedling conveyance part 3 stops driving until it opens up and rises.

Since the seedling conveyance part 3 was comprised using the wide endless belt 26a as mentioned above, weight reduction and simplification of a seedling conveyance part can be aimed at, and the said upward conveyance part 3c is the drive wheel of right and left. The driving wheels 6 are arranged at positions overlapping the upper side from the upper side, and the front and rear lengths of the bases are short, so that a compact body structure can be obtained. Furthermore, on the outer circumference of the wide endless belt 26a of the lift carrier 3c. Since the upward conveying part 3c is deflected inwardly around the circumference by pushing the tension roller 36, it is possible to set the width and height of the upper transverse conveyance part appropriately so as not to impair the workability of seedling feeding. The up-and-down movement range of the drive wheel located below the conveyance part can be ensured enough, and the inclination adaptability of a base body becomes favorable.

The partition member 26b, which is installed on the outer circumferential surface of the wide endless belt 26a, is installed at a front and rear width shorter than the front and rear width of the wide endless belt 26a, and the front end portion is sheared at the front end of the wide endless belt 26a. From the rear part, the rear end part is provided so that it may become ahead of the rear end part of the said wide endless belt 26a, and the said tension roller 36 is the front-back direction of the said belt 26a in the outer peripheral surface of the wide endless belt 26a. It is arrange | positioned at the location where there is no partition member between the seedling holding part 26c and the front-rear end part of the partition member 26b at the one end side and the other end side of the front-back direction of the said belt 26a. As a result, the tension of the wide endless belt 26a can be well balanced before and after, and the tension roller 36 does not even fall over the partition member 26b, and the seedling conveyance part 3 is accurately obtained. At the same time, it can drive circumferentially smoothly. Moreover, the structure which protrudes the belt edge part in the front-back direction outer side rather than the seedling holding part 26c can also be avoided, and taking out the seedling of the seedling transplant body 4 is performed favorably.

In addition, as shown in a partial plan view of the outer circumferential surface of the wide endless belt 26a in FIG. 9, the partition member 26b which is installed on the outer circumferential surface of the wide endless belt 26a is provided with the wide endless belt 26a. And the front end portion is installed behind the front end portion of the wide endless belt 26a, and the rear end portion is placed ahead of the rear end portion of the wide endless belt 26a. In the belt 26a, a plurality of transfer holes 26d are formed at the circumferentially set intervals to form a plurality of transfer holes 26d for engaging the projections of the outer circumference of the drive rotator 29 for circumferentially driving the wide endless belt 26a. The feed hole 26d of the 26a is formed at the one end side of the front and rear direction of the belt 26a on the outer circumferential surface of the wide endless belt 26a, and the seedling holding portion (the other side of the front and rear direction of the belt 26a). 26c) and the front and rear ends of the partition member 26b. It is installed in a place without a partition member in between. As a result, the wide endless belt 26a can be driven and rotated in good balance from front to back, and the seedling conveying unit 3 can be circumferentially and smoothly driven smoothly, moreover, the seedling holding unit 26c. The structure which protrudes the belt end part to the front-back direction outward can also be avoided, and the seedling of the seedling transplant body 4 can also be taken out favorably.

Moreover, the seedling conveyance part 3 is comprised using the wide endless belt 26a, and aimed at lightening and simplifying the seedling conveyance part 3, and the seedling holding | maintenance installed in the said wide endless belt 26a. The portion 26c is composed of a member whose mounting member is not easily bent during the circumferential rotational movement of the seedling conveying portion 3, and the seedlings are separated from the seedling holding portion 26c during the main rotational movement of the seedling conveying portion 3. In order to make it hard to fall off, each installation member of the seedling holding part 26c is provided in the single circumferential direction with respect to each installation part of the wide endless belt 26a, and the wide endless belt 26a is provided. Since the left and right sides of the attachment member of the seedling holding portion 26c may be separated from the outer circumferential surface of the wide endless belt 26a during the circumferential rotational movement of the circumferential rotational movement of the wide endless belt 26a, the circumferential rotational axis of the wide endless belt 26a (the rotary bodies 29,30,31 The rotational axis around the rotational axis of (32), and the seedling conveying part (3) Smooth and accurate circumferential rotation.

Soil reinforcement rings (覆土 鎭 壓 輪, 40), which are pressed against the seedlings transplanted to the field by the seedling transplants (4), are put on the rear left and right sides of the seedling extraction point P of the seedling conveying part 3, have. The cover earth reinforcement ring 40 is rotatably installed in the lower portion of the support device 42 provided in the support member 41 fixed to the rear portion of the support frame 23. The frame (3rd case part 18c and the support frame 23 integrated with it) which supports the seedling conveyance part 3 and the seedling transplant body 4 is the axial center of a horizontal direction in the front part as mentioned above. Since the rotational movement is freely installed on the gas side and the rear part is configured to be movable, the cover earth reinforcement ring 40 carries the weight of the seedling conveyance part 3 and the seedling transplant body 4 to the ground. It also functions as a supporting wheel. In addition, the support device 42 is configured such that the lower support part 42b moves up and down with respect to the upper support part 42a by operating the handle 43 provided on the upper part. Position adjustment is possible up and down. Therefore, the height of support of the seedling conveyance part 3 and the seedling transplant body 4 is adjusted up and down by adjusting the up-and-down position of the cover earth reinforcement ring 40. In addition, if the total weight of the seedling conveying part 3 and the seedling transplant body 4 is supported by the upper part of the groin, the soil of the upper part of the groin may be knocked down, so that the seedling conveying part ( 3) and the rear part of the frame which supports the seedling conveyance part 3 and the seedling transplant body 4 so that a part of the weight of the seedling transplant body 4 may be supported by the gas side supported by the traveling apparatus 1 (the said The spring 44 is hung on the mounting member fixed to the supporting member 41 and the base body (mounting member fixed to the handle 2) supported by the traveling device 1.

In addition, after the soil crushing wheel 40 pushes the soil against the seedlings transplanted into the field from the seedling transplanter 4, the soil is pushed upwards on the base part side of the seedlings inserted into the soil. The 2nd suppression wheel 45 which descend | falls and suppresses from this is provided. As for the 2nd suppression wheel 45, rotation is provided in the rear of the 2nd suppression wheel support member 46 about the horizontal axis freely. The front part of the 2nd suppression wheel support member 46 is provided in the horizontal axis | shaft 47 by which rotation was provided freely in the lower end side lower part of the 2nd case part 18c, and the seedling transplanted body 4 of the said horizontal axis | shaft 47 is carried out. On the mounting side, an arm 48 provided with a rotating body such as a bearing is provided on the tip end, and the tip end of the arm 48 is provided on the base side of the drive shaft 19 of the seedling transfer body 4. It is provided so that the outer periphery of the cam body 49 provided so that it may rotate integrally with, and the spring 50 which pushes so that the 2nd suppression wheel support member 46 may be raised upward may be provided. By the cam body 49, the second suppression wheel support member 46 rotates downward at an appropriate timing, and the second suppression wheel 45 is placed on the soil surface above the base portion side of the seedling inserted into the soil. Descend and put down. Further, the lowering of the second suppressing wheel 45 may be operated by pushing the spring 50, and the raising of the second suppressing wheel 45 may be performed by the action of the cam body 49.

The seedling transplanter shown in the figure is provided with the preliminary seedling mounting frame 60 which mounts a spare seedling in the gas phase. In addition, the guide roller 61 is installed on the left and right in contact with both sides of the ridge in front of the front wheel 7 in front of the base, and the guide roller 61 allows the base to travel along the ridge. In addition, the guide roller 61 is installed in the front part of the body to enable rotational movement around the horizontal axis. When the driving wheel 6 is raised, the guide roller 61 is raised, and the guide wheel 61 is guided when the driving wheel 6 is lowered. The interlock mechanism 62 which lowers the roller 61 is provided. As a result, when the gas enters the ridged state from the edge of the ridge, the driving wheel 6 is lowered to raise the gas so that the lower end portion of the seedling conveyance portion 3 does not contact the ridge. Let go. At this time, the guide roller 61 moves upward in conjunction with the lowering of the driving wheel 6, so that the guide roller 61 is in contact with the ridges as compared with the conventional art in which the guide roller 61 is fixed up and down. It becomes hard to occur and becomes easy to control the aircraft.

By the way, in the seedling transplanter of the example of illustration, the seedling transplanter 4 pulls out a seedling from the lower back side of the seedling conveyance part 3, enters into the soil, and moves to the back of a gas along a gas traveling direction, and moves to the set distance in that direction. After the seedlings are opened, the seedlings are inserted into the soil, and the structure is operated to be pulled up and pulled out of the soil, that is, the seedlings are transplanted from the back side of the seedling conveying part 3, and the shifting is performed in such a configuration. Although the transmission part 80 is provided as mentioned above, the seedling transplantation body 4 in the structure which transplants a seedling in front of the seedling conveyance part 3, ie, the lower front side of the seedling conveyance part 3, Takes out seedlings, enters the soil, moves to the front of the gas according to the direction of gas advance, moves to the set distance in that direction, opens the seedlings, inserts the seedlings into the soil, and then climbs out of the soil. Even to those in operative configuration can be provided parts of the speed change transmission applying the technical concept of the invention matter.

In the seedling transplanter of this embodiment which consists of the above structure, a gas runs by itself by the traveling apparatus 1, and the seedling of sugar cane is supplied from an operator to the seedling conveyance part 3 of the gas which runs by itself. The part 3 conveys the supplied seedlings, and the seedling transplanted body 4 transplants the seedlings conveyed by the seedling conveyance part 3 to the field. The seedling conveyance part 3 has a plurality of seedling accommodation parts 26 in the seedling conveyance direction C, and the sugar cane seedling is accommodated in this seedling accommodation part 26 in the attitude | position which the stem part faces to front-back direction. The operator supplies the seedlings to the seedling accommodation portion 26 conveyed in the left and right one direction from the base portion by the upper horizontal transfer portion 3a, and the seedling accommodation portion 26 to which the seedlings are supplied is the upper horizontal transfer portion ( Subsequent to 3a), it is conveyed to the lower side of the base by the lower transfer section 3b. The seedling accommodating part 26 which was conveyed by the said falling conveyance part 3b descend | falls to the point P (lowest falling position) where the seedling transplanter 4 takes out a seedling, The plant (4) extracts the seedlings and transplants the seedlings to the field. The seedling container 26 after the seedlings are taken out is conveyed upward by the upward conveying part 3c to the conveyance start end of the upper horizontal conveying part 3a.

The seedling transplanting part 4a of the seedling transplanter 4 pulls out an arrow-like seedling from the seedling extraction point P of the seedling conveying part 3, holding the base part side part, and plunges it into the soil. It moves in the direction according to the gas advancing direction, and inserts the maintained seedling into the soil. After moving the set distance in the direction along the gas traveling direction, the seedling transplanting part 4a opens and raises the seedlings and exits from the soil. When changing the insertion length of seedlings, it becomes possible to switch operation of the transmission transmission part 80, and to change the speed | rate when the seedling transplant body 4 moves to the direction which follows a gas advancing direction in soil.

As described above, a conventional seedling transplanter described in Japanese Patent Laid-Open No. 2000-333515 includes a plurality of seedling conveying parts having plate-shaped partition members along the front and rear directions on the outer circumferential surface of the wide endless belt having free bending, at predetermined intervals in the circumferential direction. It is installed upright and constitutes each of the locations fitted in the circumferential direction by the partition member as seedling accommodation portions, and the base portion side portion of the arrow-like seedling at the front and back one end of the location fitted in the circumferential direction by the partition member of the wide endless belt. It is a seedling transplanter installed seedling holding unit to maintain the.

Since the seedling conveyance part is comprised using the wide endless belt, the weight of the seedling conveyance part is simplified and simplified. Although the specific installation structure of the wide endless belt of the seedling holding part is unclear, if the mounting member of the seedling holding part is bent during the circumferential rotation, the seedling holding member of the seedling holding member installed on the mounting member is weakened. It is installed as a member that is not easily bent. Since the wide endless belt itself is free to bend, it moves smoothly around the circumferential axis of rotation. However, if the installation member of the seedling holding unit that is not easily bent is in close contact with the wide endless belt in the circumferential rotational direction, the endless width is endless. It is difficult to smoothly and accurately circumvent the seedling conveyance smoothly and accurately, for example, to prevent the smooth bending movement around the circumferential rotational axis of the belt, thereby causing a deviation between the wide endless belt and the driving rotational body.

Fig. 10 (expanded view of the part of the rotation shaft 33 in Fig. 4), Fig. Ll (Isometric of the seedling holding part in Fig.

The structure shown in FIG. 7 is provided with a plurality of seedling accommodation units (seedling receptors 26) for accommodating the traveling portion 1 for driving the aircraft by itself and the arrow-shaped seedlings one after the other in a posture direction. Seedling conveying part 3 for conveying seedlings by circumferentially rotating each row 29 around the circumferential rotating shaft (rotating shaft, 33) in which the axial center is oriented in the front and rear direction in which a plurality of the upper and lower sides are installed; In the seedling transplanter having a seedling transplanter (4) for holding and extracting the base portion of the arrow-shaped seedlings conveyed downward by the seedling conveying unit (3) and transplanted into the field, the seedling conveying unit (3) ) Is installed on the outer circumferential surface of the wide endless belt 26a free of curvature in a circumferential direction with a plurality of plate-shaped partition members 26b arranged in the circumferential direction at predetermined intervals, and fitted in the circumferential direction by the partition member 26b. In place The seedling holding part which comprises each as a seedling accommodating part 26, and hold | maintains the base part side of an arrow-like seedling in the front-rear end part of the part which was fitted in the circumferential direction by the partition member 26b of the said wide endless belt 26a. 26c is provided, and the seedling holding part 26c installs the left and right clamping member 27 which consists of the sponge 27a and the brush 27b which are elastic members, and the said clamping member 27 on the left and right sides. A member 28 is provided, and each of the mounting members 28 of the seedling holding portion 26c is provided in a single position in the circumferential direction with respect to each of the mounting portions of the wide endless belt 26c, and has a wide endless belt. It is a seedling transplanter, characterized in that the left and right sides of the installation member before the circumferential rotational movement of (26c) is installed to be separated from the outer peripheral surface of the wide endless belt (26a).

From the structure of the said seedling holding part 26c, this seedling transplanter runs by the run part 1 by itself, and the seedling conveyance part 3 has the seedling accommodation part 26 with the front-back direction provided with two or more seedling accommodation parts 26 up and down. Circumferentially rotates in a line around each of the rotary bodies 29 to 32 provided on the circumferential rotating shaft 33 to which the axial center is directed, and conveys the arrow-shaped seedlings accommodated in the seedling accommodating part 26 one by one in a forward-facing direction by an operator. do. As for the arrow-like seedling conveyed by the seedling conveyance part 26, the seedling transplant body 4 hold | maintains the said base part side, it is taken out, and it transplants into a field.

The seedling conveyance part 3 has many plate-shaped partition members 26b along the front-rear direction installed on the outer circumferential surface of the wide endless belt 26a free of curvature in the circumferential direction at predetermined intervals, and the partition member 26b Each of the places sandwiched in the circumferential direction is a seedling accommodating portion 26. In addition, the base part side part of the arrow-like seedling supplied to the seedling accommodation part 26 is the seedling holding part 26c provided in the front-back and one end part of the part fitted in the circumferential direction by the partition member 26b of the wide endless belt 26a. It is supplied by keeping in).

The seedling holding part 26c holds and holds the base part side part of an arrow-like seedling by the left and right clamping member 27 which consists of elastic members 27a and 27b provided in the attachment member 28. As shown in FIG. Each of the attachment members 28 of the seedling holding part 26c is provided in a single position in the circumferential direction with respect to each installation part corresponding part of the wide endless belt 26a, and the circumferential rotation of the wide endless belt 26a is performed. The left and right sides of the installation member 28 are separated from each other on the outer circumferential surface of the wide endless belt 26a during the movement.

Therefore, the seedling transplanter of the said structure comprises the seedling conveyance part 3 using the wide endless belt 26a, and aimed at lightening and simplifying the seedling conveyance part 3, and the wide endlessness The seedling holding part 26c provided in the belt 26a consists of a member whose attachment part 28 does not bend easily during the circumferential rotational movement of the seedling conveyance part 3, The seedling conveyance part 3 The seedling holding portion 26c, the mounting member 28, each of the mounting end portion 26a of the wide endless belt 26a is made to prevent the seedling from falling out of the seedling holding portion 26c during the circumferential rotational movement. On the other hand, in the circumferential direction, it is provided in a single place, and the left and right sides of the mounting member 28 can fall off the outer circumferential surface of the wide endless belt 26a during the circumferential rotational movement of the wide endless belt 26a. Bending movement around the circumferential rotation axis of (26a) is performed smoothly, Part 3 is to precisely smooth movement at the same time the circumferential rotation. In addition, although the partial perspective view of the lift conveyance part 3c is shown in FIG. 12, the seedling extracting | removing member 51 is provided in the place which follows the circumferential rotational trajectory of the seedling holding part 26c at the place which passed through the seedling taking-out part, The actuating part of the seedling extracting part 51 is installed so that the upper part in the circumferential rotation direction is relatively close to the outer circumferential surface of the belt 26a, and the lower part in the circumferential rotation direction is relatively far from the outer circumferential surface of the belt. The base part side part of the seedling held by the part 26c was pushed in the circumferential outer peripheral direction according to the circumferential rotational movement of the seedling conveyance part 3.

The seedlings taken out and damaged by the seedling transplanter 4 can be taken out automatically before returning to the upper horizontal conveyance part 3a which a worker supplies seedlings, and can carry out a seedling supply operation efficiently.

According to the invention of Claim 1, since the seedling conveyance part is comprised using the wide endless belt, the weight conveyance of the seedling conveyance part can be simplified and simplified, and the upward conveyance part of the seedling conveyance part is located on the upper side of the drive wheel from between the left and right drive wheels. Since it is arrange | positioned in the position which overlaps, it becomes a compact base structure with a short length before and behind a body, Furthermore, it was set as the structure which pushes a tension roller to the outer periphery of the wide endless belt of a raise conveyance part, and the said upward conveyance part bends in the circumference | circumference circumference, By properly setting the width and height of the upper transverse conveyance part so as not to impair the workability of the seedling feeding, it is possible to sufficiently secure the moving distance of the drive wheels located below the lift conveyance part, and the inclination adaptability of the gas becomes good. .

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the tension of the wide endless belt can be balanced well before and after, and the tension roller does not fall over the partition member, and the seedling conveyance We can drive wealth accurately and smoothly. Moreover, the structure which protrudes the belt end part from the seedling holding part to the front-back direction outward can also be avoided, and taking out the seedling of a seedling transplant body is performed favorably.

According to the invention described in Claim 3, in addition to the effects of the inventions of Claims 1 and 2, the wide endless belt can be driven and balanced in a balanced manner before and after, and the seedling conveying unit can be accurately and smoothly circumferentially driven. Moreover, the structure which protrudes a belt end part from the seedling holding part to the front-back direction outward can also be avoided, and the seedling of a seedling transplant body can be taken out favorably.

Claims (3)

By installing a plurality of driving wheels to the left and right of the body to be able to change the left and right driving wheels to different heights, and a plurality of seedling accommodating parts for accommodating the arrow-shaped seedlings in a position facing forward and rearward A seedling conveying part for conveying seedlings by circumferentially rotating the shaft in a front and rear direction in which a plurality of seedling accommodating parts are installed up and down in a row, and a base of an arrow seedling conveyed downward by the seedling conveying part. In the seedling transplanter which has the seedling transplanter which keeps a part and extracts and transplants it to a field, The seedling conveying unit is provided with a plurality of plate-shaped partition members along the front and rear direction at a set interval in the circumferential direction on the outer circumferential surface of the wide endless belt that is free to bend, and is fitted in the circumferential direction by the partition member. Each of which is formed as a seedling accommodating portion, and a seedling holding portion for holding the base side portion of the arrow-like seedling is provided at the front and rear ends of the portion fitted in the circumferential direction by the partition member of the wide endless belt, The seedling conveying part is an upper transverse conveying part for conveying the seedling accommodating part from the left and right outside from the upper side of the base, and A descending conveying unit for lowering and conveying the seedling accommodating part conveyed by the upper transverse conveying part toward the seedling taking-off point where the seedling transplanter extracts the seedlings from the lower side of the base; A rising conveying part for conveying the seedling accommodating part conveyed by the said lowering conveying part to the conveyance start end side of the said upper transverse conveyance part at the seedling taking-out point above a gas outer side slope, The upward conveying portion is disposed at a position overlapping the upper side of the driving wheel from the position between the left and right driving wheels, and further, by pushing the tension roller on the outer circumferential surface of the wide endless belt of the rising conveying portion so that the upward conveying portion refracts inwardly. Seedling transplanter characterized in that the configuration. The method of claim 1, The partition member, which is mounted on the outer circumferential surface of the wide endless belt, is installed at a front and rear width shorter than the front and rear width of the wide endless belt, and the front end portion is rearward from the front end portion of the wide endless belt. The back part is installed at the rear end of the wide endless belt, A partition member is formed at the outer circumferential surface of the wide endless belt by the tension roller at a position between the front and rear ends of the belt and the front and rear ends of the partition member at the other front and rear ends of the belt. Seedling transplanter, characterized in that placed in the missing place. The method according to claim 1 or 2, The partition member, which is installed on the outer circumferential surface of the wide endless belt, is installed at a front and rear width shorter than the front and rear width of the wide endless belt, and a front end is rearward from the front end of the wide endless belt and a rear end of the wide endless belt is provided. It is installed at the rear end to the front side, and a plurality of transfer holes are formed in the wide endless belt at the circumferentially set intervals, and a plurality of transfer holes are coupled to the projections of the outer circumference of the drive rotating body for driving the wide endless belt. On the outer circumferential surface of the wide endless belt, there is no partition member at a location between the one end side of the front and rear sides of the belt and the other side between the seedling holding portion and the front and rear end portions of the partition member at the other end side in the front and rear direction of the belt. Seedling transplanter characterized in that installed.

Images