JP3312392B2 - Riding seedling planter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type seedling transplanter having a planting portion attached to the rear of a riding type traveling vehicle body.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Patent Publication No. Sho 60-262511 discloses a method in which a planting portion is mounted on a rear portion of a riding type traveling vehicle body via an elevating link device. A spare seedling stage is provided on the side, and in a standby state such as during normal planting work, the seedling stage of the spare seedling stage is located between the seedling stage of the planting part and the seat of the traveling vehicle body in the front-rear direction, A riding rice transplanter is disclosed in which a seedling stand of a spare seedling mounting table is provided without being overlapped in a front-rear direction above a seedling mounting table of a planting part.

[0003]

In the prior art, in a standby state, the seedling stand of the spare seedling rest is located between the seedling rest of the planting part and the seat of the traveling vehicle body in the front-rear direction. Set the seedling stand on the seedling stand in the front-rear direction to the position above the seedling stand in the planting area.
Since it was provided without overlapping, a space for the front and rear length of the seedling stand had to be provided between the seat of the traveling vehicle body and the seedling stand of the planting section, and the overall length of the machine was long As a result, workability and transportation / storage efficiency were poor.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention provides a lifting device
In through the planting unit 4 is mounted, a preliminary seedling the platform 6 at the rear side of the seat 14 of the vehicle body 2 is provided a riding type seedling planting machine, the seat
14 and in front of the planting section 4 and below the spare seedling mounting table 6
The hopper 30 of the fertilizer application device 5 is provided, and
O to the upper position of the seedling mounting table 21 of the planting unit 4 in the longitudinal direction - bar - lap planting unit 4 in a standby state in which the rise in the height that does not conflict with fertilizing device 5 of the hopper by the elevating device 3 - 30
The seedling stand 40 is provided at a height that does not hinder the opening and closing of the lid 30a,
Said該苗platform 40 approaches or abutment to the front end of the seedling mounting table 21 of the rear end portion from the standby state at the same time when the front end portion moves forward is and moved to a lower in front planting section 4 It is configured to move to a seedling supply state in which seedlings can be supplied to the seedling mounting table 21, and the seat 1
4 in front of the hopper 30 of the fertilizer application device 5 and on the left and right
The seedling stand 40 from the front within the width of the seat 14
A supporting frame 41 is provided for supporting the supporting frame 41.
The hopper 30 of the fertilizer application device 5
A supporting member 16 for supporting is provided, and the supporting frame 41 and the supporting frame 41 are provided.
And the lower portions of the support members 16 are fixed to the vehicle body frame 7, respectively.
And a support frame above the vehicle body frame 7.
A riding type seedling-planting machine is provided with a connecting member for connecting the support member 41 and the support member 16 .

[0005]

An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a riding rice transplanter 1 which is an example of a riding type seedling transplanter. This riding rice transplanter 1 has a planting section 4 mounted on a traveling vehicle body 2 equipped with an engine E via a lifting link device 3. A fertilizer device 5 is provided behind the seat 5 of the traveling vehicle body 2, and a spare seedling mounting table 6 is provided above the fertilizer device 5.

[0006] The traveling vehicle body 2 is composed of two vehicle frames arranged side by side.
- a beam deflection - the engine E on the arm 7, 7 are mounted,
Then, the belt transmission was moved from the engine E to the front side by 8, 9
To the transmission 10 and to the front wheels 11, 1
1 and the rear wheels 12, 12. 13 is a step floor, 14 is a seat, and 15 is a handle. The elevating link device 3 includes upper links 3a and lower links 3b, 3b attached to link bases 16, 16 fixed to the rear ends of the frames 7, 7 so as to be able to move up and down. The vertical link 3c is connected. The planting section 4 is attached to the connecting shaft 3c 'projecting rearward from the lower end of the vertical link 3c so as to be rotatable left and right in the traveling direction.
The base of the hydraulic cylinder 17 is attached to the frames 7, 7, and the piston rod 18 is connected via a spring to the distal end of a swing arm 3a 'which projects downward integrally from the base of the upper link 3a. The planting section 4 is moved up and down by expanding and contracting the 17. The hydraulic sill 17 is operated by a hydraulic valve 28 described later.

The planting section 4 has a six-row planting structure. An E-shaped transmission case 20 in plan view also serves as a machine frame of the planting section 4. The seedling mounting table 21 is provided so as to be inclined. This seedling table 21
Is connected to a left and right reciprocating mechanism in the transmission case 20 to reciprocate left and right. Transmission case 2
0 at the rear end of the plant, the seedling table 21 reciprocates left and right, and the seedling receiving frame 21a is provided at the lower end of the seedling table. The seedlings 23 of the planting device 22 rotate while drawing a predetermined trajectory while sequentially supplying the seedlings to the seedling outlets 21b. The planting claws are pinched, and when they reach the field, they are opened and planted.

Numeral 24 denotes a seedling vertical feeding device provided on the lower side of each seedling mounting surface of the seedling mounting table 21. The seedling vertical feeding device 24 is driven by a driving roller transmitted from the planting transmission case 20 and a rotatable roller rotatably supported.
It consists of an endless seedling feed belt with small projections on its outer periphery, which is hung around a line. Thereby, the seedling vertical feeding device 24 ...
When the seedling mounting table 21 moves left and right, the lower end of the seedlings placed on the seedling mounting surface for one row is transplanted by the planting device 22, and the seedlings corresponding to the one row are placed on the seedling outlet 21b. Transfer.

A center float 25 is provided below the planting section 4.
And a pair of left and right side floats 26, 26 are provided, and the ground slides and is leveled as the aircraft advances. Each of the floats 25, 26, 26 is provided with a groove-forming device 27 for forming a groove for fertilization in a field scene near the seedling planting position of each line. The center float 25 is also a sensor for detecting unevenness in a field scene, and the hydraulic valve 28 operates according to the vertical movement of the sensor float 25. That is, when the center float 25 moves upward, the hydraulic valve 28 extends in a direction to extend the hydraulic cylinder 17.
When the center float 25 moves downward, the hydraulic valve 28 operates in a direction to contract the hydraulic cylinder 17. Thus, the planting unit 4 is controlled to move up and down with respect to the topsoil surface so as to maintain a predetermined height.

The fertilizer application device 5 is a side-strip fertilizer application device for applying fertilizer near the planted seedlings. First, a hopper 30 for storing fertilizer and a feeding portion 31 attached below the hopper 30 are provided.
Seat 1 of traveling vehicle body 2 in front of planting section 4 in the front-rear direction
4 and a plurality of feeding portions 31... (Here, six feeding portions are provided corresponding to the six-row planting) are provided so as to be arranged in a line on the left and right. ing.
Then, fertilizer hoses 32 for guiding the fed fertilizer to the rear side of the groove producing device 27 are connected to the respective feeding portions 31.
Further, an air chamber for temporarily storing the blower 33 and the pressurized air from the blower and sending it to the upper end of the fertilizing hose 32.
34, so that the fertilizer is forcibly transferred in the fertilizing hoses 32. FIG.
As shown in FIG.
3 and the air chamber 34 are removed from the frames 7,7.
It is supported via link bases 16 and 16. Follow
The link bases 16 and 16 are
-30, feeding part 31 ..., blower 33 and air chamber
It is a vertically long support member that supports −34.

The spare seedling mounting table 6 stores seedlings to be replenished when the seedlings mounted on the seedling mounting table 21 decrease as the planting operation progresses. The specific configuration of the spare seedling mounting table 6 will be described below. The seedling stand 40 is supported by two left and right support frames 41, 41. The supporting frame 4
The bases 1 and 41 are fixed to the frames 7 and 7 and connected to the upper ends of the link bases 16 and 16 by connecting members . In addition, the left and right two support frames 41, 4
1 is a fertilizer application device 5 at the rear side of the seat 14 as shown in FIG.
3 is provided on the front side of the hopper 30 of FIG.
So that it is provided within the approximate left-right width of the seat 14 in the left-right direction.
I have. At the upper ends of the support frames 41, 41, a horizontal frame 42 provided with a shaft hole is fixed.
A horizontal shaft 43 is rotatably inserted into the shaft hole, and boss portions 44a at one end of each of the four operating frames 44, 44, 44, 44 are rotatably fitted to the horizontal shaft 43. are doing. Left and right 2
The connection frames 45, 45 are fixedly connected to the respective operation frames 44, 44, 44, 44. Further, the boss 4 on the other end side of the operation frames 44, 44, 44, 44
4b are pivotally attached to mounting members 40a fixed to the front lower surface of a seedling stand 40 on which six seedlings are placed in a row. Then, cylinder mounting members 41a, 41a fixed to the support frames 41, 41 and operating arms 44, 44
The first hydraulic cylinders 46, 46 are pivotally connected to the piston mounting members 44c, 44c fixed to the connecting frames 45, 45, respectively.
Cylinder mounting members 45a, 45a fixed to the
The second hydraulic cylinders 47, 47 are pivotally attached to the piston mounting members 40b, 40b fixed to the rear side of the lower surface of the cylinder.

In the spare seedling mounting table 6 having the above structure, the attitude of the seedling table 40 is changed to the seedling supply attitude (S) by operating the first hydraulic cylinders 46, 46 and the second hydraulic cylinders 47, 47. Has become. To the seedling supply posture S of the seedling stand 40,
It can be changed when the following conditions occur. That is, a seedling detection sensor SW for detecting the presence or absence of a seedling at a predetermined level position L of the seedling mounting table 21 is provided for each line, and the seedling detection sensors SW for each line are located at the position in all the lines. Is detected as "absent", when the seedling table 21 which reciprocates right and left after the detection is located at the center position in the left and right directions, the main clutch is disengaged in response to a signal indicating the detection, and the planting traveling is stopped. The automatic stop device is activated. At this time, the left and right positions of the respective seedling mounting portions of the seedling mounting table 21 coincide with the respective left and right positions of the seedlings arranged in a row on the seedling table 40 of the spare seedling mounting table 6. In this state, the lever 48 is "supplied with seedlings".
When shifted to the side, the valve 49 is operated, the first hydraulic cylinders 46, 46 and the second hydraulic cylinders 47, 47 are both contracted, and the seedling stand 40 is changed to the seedling supply posture (S).
Then, the seedlings on the seedling stand 40 are slid onto the seedling mounting surfaces of the seedling stand 21 as they are to replenish them. When all the seedlings have been replenished, the lever 48 is shifted to the "seedling placement" side. The table 40 returns to the seedling mounting position (R). In the hydraulic circuit of FIG. 4, reference numeral 50 denotes a hydraulic pump, 51 denotes a relief valve, and 52 denotes an oil tank.

When the seedling stand 40 is in the seedling placing posture (R), that is, in a standby state, the seedling stand 40 is in a horizontal state and a spare seedling can be placed. In this posture, the seedling frame 40 is in a state of being overlapped back and forth from a position above the hopper 30 of the fertilizer application device 5 to a position above the upper end side of the seedling mounting table 21. Thus, although the spare seedling mounting table 6 is arranged in front of the planting section 4, the planting section 4 is brought closer to the traveling vehicle body 2, and the overall length of the machine body is reduced. Further, even if the planting section 4 is lifted up from the topsoil surface to the upper limit position by the lifting link device 3, it does not collide with the seedling frame 40. Further, in this position, the lid 3 of the hopper 30 is
The opening and closing of Oa and the supply of fertilizer into the hopper 30 are not hindered. By the way, a mud fall prevention cover 53 is fixed to the bottom of the seedling stand 40 to prevent the mud from falling from the seedlings on the seedling stand 40 to the fertilizer device 5 disposed below the seedling stand 40. Prevent and also protect the rain.

When the seedling stand 40 is in the seedling supply position (S), that is, in the seedling supply state, the rear side of the seedling stand 40 tilts to a lower position due to the contraction of the second hydraulic cylinders 47, 47, and the first hydraulic cylinder 46, The seedling stand 40 is shifted to the front side by the contraction of 46. Accordingly, even when the seedling stand 40 is in the overlying position above the upper end side (front end side) of the seedling stand 21 when the seedling stand 40 is in the seedling mounting position (R), the state shifts to the seedling supply position (S). Then, the lower end, ie, the rear end of the seedling stand 40 comes into contact with or comes into contact with the upper end of the seedling mounting table 21, ie, the front end of each row, and the upper end, ie, the front end of the seedling mounting table 21. Seedlings can be supplied from the seedlings, and the seedling mounting surface of the seedling mounting table 21 can be used almost completely effectively, and as a result, the number of times of seedling supply can be reduced, and workability is improved.

As shown in FIG. 1, when the seedling stand 40 is in the seedling supply posture (S), that is, in the seedling supply state, the rear side of the seedling stand 40 is inclined to a lower position due to the contraction of the second hydraulic cylinders 47, 47. The seedling stand 40 is shifted to the front side by the contraction of the first hydraulic cylinders 46, 46. Therefore, seedling stand 4
The front end of 0 moves to the front side at the same time as the rear side of the seedling stand 40 is inclined to the lower position. Accordingly, even when the seedling stand 40 is in the overlying position above the upper end side (front end side) of the seedling stand 21 when the seedling stand 40 is in the seedling mounting position (R), the state shifts to the seedling supply position (S). Then, the lower end, ie, the rear end of the seedling stand 40 comes into contact with or comes into contact with the upper end of the seedling mounting table 21, ie, the front end of each row, and the upper end, ie, the front end of the seedling mounting table 21. Seedlings can be supplied from the seedlings, and the seedling mounting surface of the seedling mounting table 21 can be used almost completely effectively, and as a result, the number of times of seedling supply can be reduced, and workability is improved.

[0016]

In the stand-by state, the seedling stand 40 of the spare seedling stand 6 is moved to the position above the seedling stand 21 in the front-rear direction.
Since the planting section 4 is provided at a height such that it does not collide even when the planting section 4 is raised by the elevating device 3 in the standby state of overlapping, the spare seedling mounting table 6 is arranged in front of the planting section 4, The distance between the seat 14 of the traveling vehicle body 2 and the seedling table 24 of the planting section 4 in the front-rear direction can be reduced, and the planting section 4 can be made closer to the traveling vehicle body 2 to shorten the overall body length. This improves workability and transportation / storage efficiency. Moreover, a spare seedling mounting table
6 is provided below the hopper 30 of the fertilizer application device 5.
And the space below the spare seedling mounting table 6 can be used effectively.
The seedling stand 40 of the fertilizer placement table 6 is mounted on the hopper 30 of the fertilizer application device 5.
The height is set so as not to obstruct the opening and closing of the seedling 30a.
Does not hinder the operation of supplying fertilizer to the hopper 30,
And the efficiency of transport and storage of the aircraft are improved. In addition, support
The frame 41 is provided in the left-right direction and substantially within the width of the seat 14.
Therefore, from the front side of the hopper 30 where the seat 14 is located,
This support frame is used when the fertilizer is supplied to the par 30.
41 is hardly in the way, making it easy to supply fertilizer
You.

In the seedling replenishment state, the spare seedling mounting table 6
At the same time that the front end of the seedling stand 40 moves to the front side, and the rear end of the seedling stand 40 moves to the front side and to a lower position to approach or contact the front end of the seedling stand 21 of the planting section 4. Therefore, seedlings can be supplied from the front end of the seedling mounting table 21 of the planting unit 4, and the seedlings can be supplied and placed on substantially the entire surface of the seedling mounting table 21 of the planting unit 4 at the time of the seedling supply. Thus, substantially the entire surface of the seedling mounting table 21 can be effectively used. Moreover, seedling stand 4
Fertilizer is applied to the rear side of the seat 14 by the support frame 41 supporting
It is installed in front of the hopper 30 of the device 5 and is
So that the seedlings are supported by the support frame 41.
Even if the seedling stand 40 moves to the front side in the replenishment state, the seedling stand 4
0 can be firmly supported. In addition, fertilizer
5 and a supporting frame 16 for supporting the hopper 30 of FIG.
Is connected to the vehicle body frame 7 by a connecting member.
Therefore, the supporting strength of the supporting frame 41 and the supporting member 16 is
Seedlings to be improved and placed between the seat 14 and the planting section 4
Firmly supports table 40 and hopper 30 of fertilizer application device 5
can do.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view of the riding rice transplanter.

FIG. 3 is a front view showing a support structure of a spare seedling mounting table.

FIG. 4 is a hydraulic circuit diagram showing an operation configuration of a hydraulic cylinder for changing a posture of a spare seedling mounting table.

[Description of Signs] 1: Riding rice transplanter 2: traveling vehicle body 3: lifting link device 4: planting unit 5: fertilizer application device 6: spare seedling mounting table 7: frame 14: seat 16: link base 21: seedling Mounting table 30: Hopper 30a: Lid 40: Seedling table 41: Support frame

Claims (1)

(57) [Claims] 1. A riding type seedling planter in which a planting section 4 is mounted on a rear portion of a riding type traveling vehicle body 2 via an elevating device 3, and a spare seedling mounting table 6 is provided behind a seat 14 of the traveling vehicle body 2. In, seat 1
4 and in front of the planting section 4 and below the spare seedling mounting table 6.
A hopper 30 for the fertilizer device 5 is provided, and the spare seedling table 6 is over-positioned in the front-rear direction to a position above the seedling table 21 of the planting section 4.
The hopper 30 of the fertilizer applicator 5 is set at a height that does not cause a collision even if the planting section 4 is raised by the elevating device 3 in a standby state of wrapping.
The seedling stand 40 is provided at a height that does not hinder the opening and closing of the lid 30a.
Rear portion <br/> simultaneously the front end portion moves to the front side of the seedling base 40 from the standby state to and moved to a lower in front approaching or Setto to the front end of the seedling mounting table 21 of the planting unit 4 the seedlings to the seedling mounting base 21 is configured to be moved to the refillable seedling supply state, the seat 14
On the rear side, in front of the hopper 30 of the fertilizer application device 5 and on the left and right sides
The seedling stand 40 is supported from the front within the width of the seat 14 in the horizontal direction.
A supporting frame 41 to be held is provided.
The hopper 30 of the fertilizer application device 5 is supported from the traveling vehicle body 2 on the rear side.
A supporting member 16 for holding the supporting frame 41,
The lower portions of the support members 16 are fixed to the vehicle body frame 7, respectively.
And a support frame 4 above the body frame 7.
A riding type seedling-planting machine, comprising a connecting member for connecting the support member 1 and the support member 16 .