JP2023031521A - Sulky type seedling transplanter - Google Patents

Abstract

To provide a sulky type seedling transplanter planting seedlings while traveling a paddy field farm field, with a preliminary seedling mounting base provided on a front part side part of a travel vehicle body, and capable of enhancing working properties and working efficiency of the work for supplying a seedling box of raised seedlings to a sulky type seedling transplanter from a road or a furrow, with a front part of the sulky type seedling transplanter grounded on the furrow or road, and the work for taking out an empty seedling box from the sulky type seedling transplanter, which working properties and working efficiency are conventionally poor.SOLUTION: In a sulky type seedling transplanter comprising a preliminary seedling mounting unit 38 attached to a front part of a travel vehicle body, and a seedling planting part attached to a rear part, a return rail 70 for sliding empty seedling boxes N toward a front part of the machine body, is provided on a side part of the preliminary seedling mounting unit 38, and an empty box operation tool 73 for transferring to the return rail 70, the empty seedling box N mounted on the preliminary seedling mounting unit 38, by operation from a front part of the machine body is also provided.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a ride-on seedling transplanter having a seedling planting part attached to a traveling vehicle body.

2. Description of the Related Art Conventionally, there is a riding-type seedling transplanter (riding-type seedling transplanting machine) for planting seedlings while traveling in a paddy field, in which an auxiliary seedling mounting table is provided on the front side of a traveling vehicle body. (See Patent Document 1, for example).

JP 2021-072873 A

The operation of attaching the front part of the riding seedling transplanter to a ridge or road and supplying the seedling box with raised seedlings from the ridge or road to the riding seedling transplanting machine and the work of removing the empty seedling box from the riding seedling transplanter are: Workability and working efficiency were poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ride-on seedling transplanter capable of improving workability and work efficiency.

The invention according to claim 1 is a ride-on type seedling transplanter equipped with a preliminary seedling mounting device 38 in the front part of the traveling vehicle body 2 and a seedling planting part 4 in the rear part. A return rail 70 for sliding an empty seedling box N toward the front part of the machine body is provided, and the empty seedling box N placed on a preliminary seedling mounting device 38 is transferred to the return rail 70 by an operation from the front part of the machine body. This is a ride-on type seedling transplanter provided with an empty box operation tool 73 .

According to the first aspect of the invention, a return rail 70 is provided on the side of the preliminary seedling-mounting device 38 for sliding the empty seedling box N toward the front of the machine body, and the preliminary seedling-mounting is performed from the front of the machine. Since an empty box handling tool 73 is provided for transferring an empty seedling box N placed on the device 38 to the return rail 70, it is possible to supply the seedling box N with raised seedlings to the riding seedling transplanter 1 from the ridge or road. Empty seedling boxes N can be taken out from the riding type seedling transplanter 1 with good workability and work efficiency.

According to the second aspect of the present invention, a gripping portion 74 is provided at the front end of the empty box operating tool 73, and by rotating the empty box operating tool 73 of the gripping part 74, the preliminary seedling mounting base 38c of the preliminary seedling mounting device 38 is moved. An empty box manipulating tool 73 is provided with a seedling box transfer body 78 for transferring an empty seedling box N placed on a spare seedling mounting table 38c to a return rail 70 by passing through the provided penetration part 77 from the bottom to the top. A riding-type seedling transplanter according to claim 1.

According to the third aspect of the invention, a gripping portion 74 is provided at the front end of the empty box manipulating tool 73, and the empty seedling box N on the return rail 70 can be removed from the body by moving the empty box manipulating tool 73 of the gripping part 74 to the front of the machine body. 3. A ride-on type seedling transplanter according to claim 1 or claim 2, wherein a seedling box feeder 79 for moving forward is provided.

According to the fourth aspect of the invention, the plurality of preliminary seedling mounting tables 38a, 38b, 38c of the preliminary seedling mounting device 38 are vertically arranged, and the plurality of preliminary seedling mounting tables 38a, 38b, 38c are arranged on a plane in the longitudinal direction of the machine body. , divided return rails 70a, 70b, 70c provided on the respective side portions of the plurality of spare seedling mounting bases 38a, 38b, 38c are communicated in the front-rear direction to form return rails 70, forming seedlings. The box N can be slidably moved from the rear to the front, and empty box operation bodies 73a, 73b, 73c provided on the side portions of the plurality of spare seedling mounts 38a, 38b, 38c are connected to operate the empty box. The riding-type seedling transplanter according to any one of claims 1 to 3, which serves as a tool 73.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the riding-type rice transplanter which shows embodiment in this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the principal part of the riding type rice transplanter which shows embodiment in this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the principal part of the riding type rice transplanter which shows embodiment in this invention. FIG. 2 is a front view for explaining the operation of the main part of the riding-type rice transplanter showing the embodiment of the present invention; FIG. 2 is a front view for explaining the operation of the main part of the riding-type rice transplanter showing the embodiment of the present invention; It is a perspective view for operation explanation of the important section of the riding type rice transplanter which shows the embodiment in the present invention. It is a perspective view for operation explanation of the important section of the riding type rice transplanter which shows the embodiment in the present invention. It is a perspective view for operation|movement description of the principal part of the riding type rice transplanter which shows other embodiment in this invention.

Preferred embodiments of the present invention will be described below with reference to the drawings.

<Overall composition>
FIG. 1 is a side view of a ride-on rice transplanter 1 equipped with a fertilizing device, which is a typical example of the ride-on seedling transplanter of the present invention. In this riding-type rice transplanter 1 with a fertilizing device, a seedling planting unit 4 is attached to the rear side of a traveling vehicle body 2 via an elevating link device 3 so as to be able to move up and down, and a main body of a fertilizing device 5 is mounted on the rear upper side of the traveling vehicle body 2. is provided. The left and right directions of the riding-type seedling transplanter are referred to as left and right, respectively, and the forward and backward directions are referred to as front and rear, respectively.

<Running body 2>
The traveling vehicle body 2 is a four-wheel drive vehicle having a pair of left and right front wheels 10, 10 and a pair of left and right rear wheels 11, 11 as drive wheels. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles protruding outward from respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10, 10 are attached respectively. A front end portion of a main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, a rear wheel gear case 18, and a rear wheel gear case 18 are mounted around a rear wheel rolling shaft provided horizontally in the front-rear direction at the center portion of the rear end of the main frame 15. Rear wheels 11, 11 are attached to rear wheel axles projecting outward from rear wheel gear cases 18, 18.

The engine 20 is mounted on the main frame 15 , and the rotational power of the engine 20 is transmitted to the mission case 12 via the belt transmission device and the HST 23 . The rotational power transmitted to the mission case 12 is changed in speed by the transmission in the case 12, and then separated into traveling power and external power and taken out. A part of the driving power is transmitted to the front wheel final cases 13, 13 to drive the front wheels 10, 10, and the rest is transmitted to the rear wheel gear cases 18, 18 to drive the rear wheels 11, 11. The external extraction power is transmitted to the planting clutch case provided at the rear part of the traveling vehicle body 2, then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and to the fertilizing device 5 by the fertilizing transmission mechanism. be done.

An upper portion of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 containing various operating mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10, 10 is provided above the cover. Horizontal floor steps 35 are formed on both left and right sides of the lower ends of the engine cover 30 and the front cover 32 . The floor step 35 is partly lattice-shaped so that the mud on the shoes of the worker walking on the step 35 falls on the field. The rear part above the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

The lifting link device 3 has a parallel link structure, and includes one upper link 40 and a pair of left and right lower links 41 , 41 . These links 40, 41, and 41 are rotatably attached at their base sides to a rear sight gate-shaped link base frame 42 erected at the rear end of the main frame 15, and a vertical link 43 is connected to their tip sides. ing. A connecting shaft 44 rotatably supported by the seedling planting section 4 is inserted into and connected to the lower end of the vertical link 43 , and the seedling planting section 4 is connected to the seedling planting section 4 so as to roll around the connecting shaft 44 . An elevating hydraulic cylinder 46 is provided between the link base frame 42 and the vertical link 43, and by expanding and contracting the cylinder 46 with hydraulic pressure, the elevating link device 3 rotates up and down, and the seedling planting section 4 moves. It goes up and down while maintaining a nearly constant posture.

<Seedling planting part 4>
The seedling planting part 4 is composed of 6 rows of planting, and a transmission case 50 that also serves as a frame reciprocates left and right on which the mat seedlings are placed to supply the seedlings one by one to the seedling extraction port 51a of each row, and to supply the seedlings for one horizontal row. A seedling platform 51 for transferring seedlings downward by a seedling feeding belt for supplying all the seedlings to the seedling outlet 51a, and a seedling planting device 52 for planting the seedlings supplied to the seedling outlet 51a in a field are provided.

A center float 55 is provided in the center of the lower part of the seedling planting part 4, and side floats 56, 56 are provided on both left and right sides thereof. When the machine body is advanced with these floats 55, 56, and 56 in contact with the muddy surface of the field, the floats 55, 56, and 56 slide while leveling the muddy surface, and the seedling planting device 52 moves on the muddy surface. Seedlings are planted.

Each float 55, 56, 56 is rotatably mounted so that the front end side moves up and down according to the unevenness of the topsoil surface of the field. (not shown), and the seedling planting depth is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to move the seedling planting unit 4 up and down. .

A ground leveling rotor 27, which is an example of a ground leveling device, is attached to the seedling planting unit 4. As shown in FIG.

<Fertilizer 5>
The fertilizing device 5 feeds out the granular fertilizer stored in the fertilizer hopper 60 by a feeding portion 61 by a fixed amount, and guides the fertilizer to the fertilizing guides 63 attached to the left and right sides of the floats 55, 56, 56 by the fertilizing hose 62. , a grooving body 64 provided on the front side of the fertilizing guide 63 drops it into the fertilizing structure formed in the vicinity of the side portion of the seedling planting row.

Air generated by a blower driven by an electric blower motor is blown into the fertilizing hose 62 via an air chamber 59 elongated in the left-right direction, and the fertilizer in the fertilizing hose 62 is forcibly transported by air pressure. ing.

<Preliminary Seedling Mounting Device 38>
A pair of preliminary seedling placing devices 38, 38 for placing replenishment seedlings supported by a support frame 49 are provided on both left and right sides of the front portion of the traveling vehicle body 2.例文帳に追加

The preliminary seedling mounting device 38 is composed of three upper and lower stages with moving link members 39, and the first preliminary seedling mounting table 38a in the uppermost stage, the second preliminary seedling mounting table 38b in the middle stage, and the third preliminary seedling mounting table 38c in the lower stage. It's becoming

The second preliminary seedling mounting table 38b is fixed to the support frame 49. As shown in FIG. A state in which the first preliminary seedling mounting table 38a and the third preliminary seedling mounting table 38c are arranged above and below the second preliminary seedling mounting table 38b as a center, and a moving link member. 39 is rotated so that the second preliminary seedling mounting table 38b is centered, and the first preliminary seedling mounting table 38a and the third preliminary seedling mounting table 38c are arranged in front of and behind the second preliminary seedling mounting table 38b. It is possible to switch to a state in which the three spare seedling mounts 38a, 38b and 38c are arranged on the same plane.

Also, the first, second, and third preliminary seedling placement tables 38a, 38b, and 38c, which are composed of three upper and lower stages, can be switched back and forth to form a single level plane while the seedling tray is placed thereon.

Further, when rearranging the first, second and third spare seedling mounting tables 38a, 38b and 38c in three stages or on the same plane, the moving link member 39 is operated by an electric motor. In this case, workability is improved if the operation switch for the electric motor is provided at two positions, one on the side of the operator and the other on the side of the assistant located around the seedling transplanter.

Then, seedling boxes N each formed of a rod are placed vertically on the outside of each of the first preliminary seedling mounting table 38a, the second preliminary seedling mounting table 38b, and the third preliminary seedling mounting table 38c, and are slidably moved. A first return rail 70a, a second return rail 70b, and a third return rail 70c are provided as divided return rails to separate the return rails. The first return rail 70a, the second return rail 70b, and the third return rail 70c are collectively referred to as a return rail 70. As shown in FIG.

The first return rail 70a, the second return rail 70b, and the third return rail 70c are configured so that the seedling box N can be placed in an upright state.

Then, as shown in FIGS. 2 and 3, the first preliminary seedling mounting table 38a, the second preliminary seedling mounting table 38b, and the third preliminary seedling mounting table 38c are arranged in the front-rear direction and arranged on the same plane (rice planting work). ), the first return rail 70a, the second return rail 70b, and the third return rail 70c are communicated in the front-rear direction, and the seedling boxes N are arranged in the same plane in the front-rear direction. The first return rail 70a, the second return rail 70b, and the third return rail 70c can be slid from the rear end to the front end while standing horizontally.

Cylindrical guide portions 72a, 72b, and 72c are provided on support rods 71a, 71b, and 71c, the bases of which are fixed to the bottoms of the first return rail 70a, the second return rail 70b, and the third return rail 70c. An empty box operating tool 73 is provided so as to pass through the portions 72a, 72b, and 72c and be slidably and rotatably supported in the longitudinal direction of the machine body.

The empty box operating tool 73 is composed of rods, and includes a front empty box operating rod 73a as an empty box operating body guided by the guide portion 72a of the first return rail 70a, and a guide portion 72b of the second return rail 70b. The empty box operating rod 73b as a guided empty box operating member and the rear empty box operating member 73c as an empty box operating member guided by the guide portion 72c of the third return rail 70c are divided into three.

At the front end of the front empty box operating lever 73a of the empty box operating tool 73, a grip part 74 for sliding and rotating the empty box operating tool 73 in the longitudinal direction of the machine body is provided. An engaging piece 75 having a through hole 75a is provided at the rear end.

The front end of the hollow box operating rod 73b is provided with an engaging pin portion 76 that penetrates and engages with the through hole 75a of the engaging piece 75 at the rear end of the front empty box operating rod 73a. An engaging piece 75 having a through hole 75a is provided at the rear end of the .

The front end of the rear empty box operating lever 73c is provided with an engaging pin portion 76 that penetrates and engages with the through hole 75a of the engaging piece 75 at the rear end of the hollow box operating lever 73b. In the middle of 73c, a seedling box lifting rod 78 as a seedling box transfer body passing through grooves 77, 77 as two penetration parts cut from the inner side of the body of the third preliminary seedling loading table 38c. A seedling box feeding rod 79 is provided at the rear end of the rear empty box operation lever 73c, and serves as a seedling box feeding body that can be pushed forward in contact with the rear end of the seedling box N. It is

In addition, the third return rail 70c is divided into three parts by separating portions through which the seedling box raising rods 78, 78 pass so that the seedling box raising rods 78, 78 can rotate.

<Rice planting work>
By operating the operation switch of the electric motor, the left and right preliminary seedling mounting devices 38 are switched to a state in which the first, second and third preliminary seedling mounting bases 38a, 38b and 38c are arranged on the same plane. At that time, the first, second, and third return rails 70a, 70b, and 70c are in communication with each other in the front-rear direction, and the seedling box N can be erected in a horizontal direction. It is in a state in which it can slide from the rear end to the front end. In addition, the empty box operating tool 73 is engaged with the through holes 75a of the engaging pieces 75 of the front empty box operating lever 73a, the hollow box operating lever 73b, and the rear empty box operating lever 73c through the engaging pin portions 76. and connected.

A worker seated on the seat 31 of the riding-type rice transplanter 1 steers the machine body to put the front part of the riding-type rice transplanter 1 on a ridge or a road.

A worker on the ridge or road places the seedling box N with raised seedlings placed on the ridge or road on the front first preliminary seedling loading table 38a arranged on the same plane and pushes it to the rear of the machine body to move it backward. is slid to the third preliminary seedling mounting table 38c located at the bottom.

A worker on board the machine takes out the mat-like soiled seedlings from the seedling box N slid to the third spare seedling mounting table 38c with the seedling saving plate and supplies them to the seedling mounting table 51 of the seedling planting part 4. . At that time, the rear ends of the first, second, and third return rails 70a, 70b, and 70c communicating with the empty seedling box N placed on the third spare seedling loading table 38c are moved forward and backward. Place it horizontally and slide it forward.

However, since the mat-like soil-attached seedlings are taken out from the seedling box N by the seedling saving plate and held with both hands, the empty seedling box N placed on the third spare seedling mounting base 38c is communicated in the front-rear direction. It is difficult and workability (work efficiency) is poor to place the device vertically on the rear ends of the first, second and third return rails 70a, 70b and 70c and slide it forward.

Therefore, an operator on a ridge or road grasps the gripping portion 74 of the empty box operating tool 73 located at the front end of the machine body and rotates the empty box operating tool 73 in the direction of the arrow (A) to raise the seedling box raising rod. The empty seedling boxes N placed on the third preliminary seedling mounting table 38c are moved upwards through the two grooves 77, 77 of the third preliminary seedling mounting table 38c. Drop it into the rear ends of the first, second and third return rails 70a, 70b and 70c while standing.

Then, while holding the grip portion 74, it is strongly pulled forward in the direction of the arrow (b), and the seedling box feed rod 79 is used to stand on the rear ends of the first, second, and third return rails 70a, 70b, and 70c. The rear end of the seedling box N is pushed forward (toward oneself) to slide the empty seedling box N to the front ends of the first, second and third return rails 70a, 70b and 70c.

Then, the empty seedling boxes N slid to the front ends of the first, second, and third return rails 70a, 70b, and 70c are taken out and placed on the ridge or road, and the seedling boxes N with raised seedlings placed on the ridge or road are removed. The seedlings are placed on the front first preliminary seedling mounting table 38a arranged on the same plane, pushed to the rear of the machine body, and slid to the rear third preliminary seedling mounting table 38c.

At this time, since the seedling box raising rods 78, 78 of the empty box manipulating tool 73 can rotate 360 degrees by grasping the grasping portion 74, even if there is a seedling box N with raised seedlings on the third spare seedling mounting base 38c, the third The preliminary seedling loading table 38c can be rotated to the bottom side and returned by the outer circumference, so that the efficiency of the next work is good.

In this way, the first, second, and third spare seedling placement tables 38a, 38b, and 38c, in which the seedling boxes N with raised seedlings placed on the ridge or road are arranged on the same plane, Using the first, second and third return rails 70a, 70b and 70c and the empty box operating tool 73, the seedlings can be supplied to the seedling mounting table 51 of the seedling planting section 4 efficiently and easily with good workability.

After finishing the operation of supplying seedlings to the seedling loading table 51 of the seedling planting unit 4, the operator on the ridge or road places the seedling boxes N in which the seedlings are raised on the ridge or road into the first, second, and second seedling boxes. The seedlings are placed on the right and left preliminary seedling mounting devices 38 in which the three preliminary seedling mounting tables 38a, 38b and 38c are arranged on the same plane.

In addition, a fertilizer bag placed on a ridge or road is picked up and carried to the fertilizer hopper 60 of the fertilizer applicator 5 to supply the fertilizer.

A worker seated on the seat 31 of the riding-type rice transplanter 1 drives each part to make the machine body travel to perform rice planting and fertilization.

When the seedlings with mat-like soil placed on the seedling mounting base 51 of the seedling planting section 4 are running out during the rice planting work, the mat-like soil is removed from the seedling boxes N placed on the left and right spare seedling mounting devices 38 by the seedling saving plate. The seedlings are taken out and supplied to the seedling mounting table 51 of the seedling planting section 4, and an empty seedling box N is placed on the return rail 70. - 特許庁

When the mat-like seedlings remaining on the seedling mounting base 51 of the seedling planting section 4 are running out and the left and right preliminary seedling mounting devices 38 are running out of seedlings, the front portion of the riding type rice transplanter 1 is placed on a ridge or road. , the seedlings with mat-like soil are supplied to the seedling mounting base 51 of the seedling planting section 4 in the manner described above, the seedling box N in which the seedlings are raised is placed on the left and right spare seedling mounting devices 38, and the worker on the ridge or the road Empty seedling boxes N placed on the first, second and third return rails 70a, 70b and 70c communicating in the longitudinal direction are slid forward, pulled out from the front end and placed on a ridge or road.

Also, if the amount of fertilizer in the fertilizer hopper 60 of the fertilizer applicator 5 is low, the fertilizer is also supplied to the fertilizer hopper 60 .

<Other embodiments>
(1) FIG. 8 shows another embodiment of the connecting portion of the front empty box operating lever 73a, the hollow box operating lever 73b and the rear empty box operating lever 73c of the empty box operating tool 73. FIG.

That is, for example, a cubic engagement piece 75' is provided at the rear end of the front empty box operating lever 73a, and an external cubic engagement piece 75' is provided at the front end of the hollow box operating lever 73b. A bridged engaging portion 76' is provided so that both can be separated and engaged.

Also, the connecting portion between the hollow box operating lever 73b and the rear empty box operating lever 73c has the same structure.

2 Traveling vehicle body 4 Seedling planting unit 38 Spare seedling mounting device 38a Spare seedling mounting table (first preliminary seedling mounting table)
38b Spare seedling loading table (second spare seedling loading table)
38c Spare seedling loading table (third spare seedling loading table)
70 return rail 70a split return rail (first return rail)
70b split return rail (second return rail)
70c split return rail (third return rail)
73 Empty box operating tool 73a Empty box operating body (front empty box operating rod)
73b Empty box operating body (hollow box operating rod)
73c Empty box operating body (rear empty box operating rod)
74 Grip portion 77 Penetrating portion (groove portion)
78 Seedling box transfer body (seedling box raising rod)
79 seedling box feeding body (seedling box feeding rod)
N seedling box

Claims (4)

In a riding-type seedling transplanter equipped with a preliminary seedling mounting device (38) in the front part of the traveling vehicle body (2) and a seedling planting part (4) in the rear part, A return rail (70) for sliding an empty seedling box (N) toward the front part of the machine body is provided, and the empty seedling box (N) is placed on a preliminary seedling mounting device (38) by operation from the front part of the machine body. A ride-on type seedling transplanter characterized in that an empty box operation tool (73) for transferring the seedlings onto a return rail (70) is provided. A gripping portion (74) is provided at the front end of the empty box operating tool (73), and by rotating the empty box operating tool (73) of the gripping part (74), the preliminary seedling mounting table of the preliminary seedling mounting device (38) is operated. The empty seedling box (N) placed on the preliminary seedling loading table (38c) is transferred to the return rail (70) through the penetration part (77) provided in the (38c) from the bottom to the top. 2. The ride-on seedling transplanter according to claim 1, wherein the transfer body (78) is provided on the empty box manipulator (73). A gripping portion (74) is provided at the front end of the empty box manipulating tool (73), and the empty seedling box (73) on the return rail (70) is removed by moving the empty box manipulating tool (73) of the gripping part (74) forward of the fuselage. 3. A ride-on type seedling transplanter according to claim 1 or claim 2, further comprising a seedling box feeder (79) for moving the seedling (N) forward of the body. The plurality of preliminary seedling mounting tables (38a, 38b, 38c) of the preliminary seedling mounting device (38) are arranged vertically, and then the plurality of preliminary seedling mounting stages (38a, 38b, 38c) are arranged on a plane in the longitudinal direction of the machine body. When the state is switched to the closed state, the divided return rails (70a, 70b, 70c) provided on the respective side portions of the plurality of spare seedling loading platforms (38a, 38b, 38c) are communicated in the front-rear direction to form the return rail (70). As a result, the seedling box (N) can be slid from the rear to the front. , 73c) are connected to form an empty box manipulating tool (73).

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