JP2002320405A - Seedling transplanter - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a transplanter for seedlings capable of planting seedlings deep in the soil without opposing the progress of the body. A seedling planting device (5) includes a driving force transmission mechanism from a prime mover (9), a planting tool (57) having a pair of gripping hands (58) opened and closed by the driving force transmission mechanism, and a front side in the traveling direction of the transplanting machine. When the hand 58 of the planting tool reaches the lowermost point of the non-circular turning trajectory X, the hand 58 of the planting tool 57 holding the seedling opens. And an interlocking mechanism driven by the driving force transmission mechanism so that the seedlings are planted in the field. Therefore, the seedlings 57 plant the seedlings toward the front of the machine body, so that the seedlings can be planted long in the soil without increasing the turning trajectory X of the planting tools 57 so much back and forth. To provide a walking-type seedling transplanter that is easy for workers to work regardless of size.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanter for transplanting sweet potato seedlings.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 8-8 / 1994 filed by the present applicant.
The conventional seedling implanting device described in Japanese Patent No. 9030 has an implanting claw that turns in a vertically long non-circular orbit, and when the implanting claw enters the field with the orbit, the seedling sandwiched at the tip is planted. It is a device to be inserted.

[0003]

The conventional seedling planting apparatus such as the invention of the applicant of the present invention is to plant seedlings obliquely and shallowly in a field toward the rear of the body in the traveling direction. To plant seedlings in the opposite direction to
There was a problem that it was difficult to plant seedlings deep in the soil.

Accordingly, an object of the present invention is to provide a seedling transplanter capable of planting seedlings deeply in the soil without opposing the progress of the body.

[0005]

The above object of the present invention is attained by the following constitution. That is, in the seedling transplanting machine 1 provided with the seedling transplanting device 5 on the body running by the motor 9, the seedling transplanting device 5 includes a driving force transmission mechanism from the motor 9 and a pair of opening and closing operations performed by the driving force transmission mechanism. And the implanting tool 57 having the gripping hand 58 of the above, forms a non-circular turning trajectory toward the front side in the traveling direction of the transplanter, and the hand 58 of the implanting tool reaches the lowermost point of the non-circular turning trajectory. This is a seedling transplanter provided with an interlocking mechanism driven by the driving force transmission mechanism so that the hand 58 of the planting tool 57 holding the seedling is opened when the seedling is held and the seedling is planted in the field.

[0006]

Since the planting tool 57 plants the seedling toward the front of the machine body, the seedling can be planted long in the soil without making the turning trajectory X of the planting tool 57 too long back and forth.

[0007]

1 and 2 are a side view and a plan view, respectively, of a sweet potato seedling transplanter as an example of a seedling transplanter embodying the present invention. This seedling transplanter 1 has traveling wheels (rear wheels 2,
2 and front wheels 3, 3), while the body is advanced while straddling the ridge U, the sweet potato seedlings are ridged by the planting portion 1b including the seedling supply device 4, the seedling planting device 5, and the like. It is configured to be planted on the upper surface. The operator appropriately steers the aircraft with the steering handle 6 provided at the rear of the aircraft,
At the time of planting work, seedlings are supplied to the seedling supply device 4 while walking on the side of the machine body. Hereinafter, the configuration of each unit will be described.

First, the traveling section 1a will be described. An engine 9 is arranged in front of the traveling section transmission case 7. A hydraulic pump 10 driven by the power of the engine 9 is provided on a left side surface of the engine 9. A fuel tank 11 and the like are provided above the engine 9, and a bonnet 12 covers the upper side thereof. A left and right long connecting frame 13 of a rectangular shape in a side view is integrally provided on a rear portion of the traveling section transmission case 7.
The front end of the main frame 14 that connects the traveling section 1a and the steering handle 6 is fixedly connected to the rear right end of the main frame. The main frame 14 extends rearward through the right side of the planting portion 1b in plan view, curves obliquely upward on the way, and extends as it is to the rear position of the planting portion 1b. The steering handle 6 is fixedly attached to the rear end.

[0009] The traveling transmission cases 16, 1 are attached to rotating cylinders 15, 15 protruding from the left and right side surfaces of the traveling section transmission case 7, respectively.
6 are integrally attached, and the traveling transmission cases 16, 1
The rear wheels 2, 2, which are driving wheels, are pivotally supported at the tip of the wheel 6. The front wheel support frame 1 is provided below the engine 9 so as to be swingable about a pivot shaft 17a in the front-rear direction.
Front wheel support rods 18 are attached to the left and right ends of the 7 so as to be adjustable in height, and the front wheels 3, 3 which are driven traveling wheels are pivotally supported at the lower ends of the rods 18, 18.

The traveling section 1a is provided with a body control mechanism for controlling the position of the body by moving the rear wheels 2, 2 up and down with respect to the body. This body control mechanism is provided with an elevating cylinder 21 provided rearward from a hydraulic valve unit 20 disposed on the traveling section transmission case 7, and a balance rod 22 is provided at a tip end of a piston rod 21 a of the cylinder 21 in a vertical direction. It is attached so that it can rotate around the axis. The front and rear ends of the piston rod 21a slide along a guide shaft 24 supported by the hydraulic valve unit 20 and an attachment member 23 attached to the main frame 14.
The left and right ends of the balance rod 22 and the swing arms 25, 25 fixed to the rotary cylinders 15, 15, are connected to a connecting rod 26,
26. Left connecting rod 26
Has a rolling cylinder 27 incorporated therein, and its length can be changed by expanding and contracting the cylinder 27.

The lifting cylinder 21 and the rolling cylinder 27 are operated by controlling a hydraulic oil supplied from the hydraulic pump 10 by a control valve (not shown) in the hydraulic valve unit 20. When the elevating cylinder 21 is extended and contracted, the balance rod 22 moves back and forth, and the swing arm 25 is connected to the elevating cylinder 21. The rear wheels 2 and 2 move up and down by the same amount in the same direction with respect to the aircraft, and the aircraft is moved up and down. When the rolling cylinder 27 is extended and contracted, the right and left rear wheels 2 and 2 move up and down with respect to the body by the same amount in the opposite direction, and the body is inclined right and left.

A planting depth adjusting lever 40 is provided to change the planting depth of the seedlings by adjusting the starting point of the rotation of the grounding plate 28, which contacts the ridge, up and down with respect to the body.

Next, the configuration of the planting section 1b will be described. The lower part of the planting part transmission case 30 transmitted from the traveling part transmission case 7 is fixed to the upper surface of the connecting frame 13,
The base of the first planting transmission case 31 is fixed to the upper part of the planting section transmission case 30, and the base of the second planting transmission case 32 is further fixed to the tip of the first planting transmission case 31. . The first planting transmission case 31 and the second planting transmission case 32 are connected to an operation mechanism of a seedling planting device 5 described later. The seedling planting tool 57 described later in the planting device 5 is
It is located behind the traveling section 1a. An upper frame 34 having a base fixed to the planting section transmission case 30.
A seedling mounting table 41 is attached to the seedling supply device 4 and the seedling mounting table 41 is disposed above the seedling planting device 5.

When viewed from the side, the planting section transmission case 30 is provided rearward and upward from the connecting frame 13, and the first planting transmission case 31 is connected to the planting section transmission case 3.
The second planting transmission case 32 is provided horizontally downward from the lower end of the first planting transmission case 31. With this configuration,
A space for the balance rod 22 to move is secured below the second planting transmission case 32 without making the longitudinal length of the body longer than necessary.

Further, in plan view, the planting section transmission case 30 is connected to the right end of the connecting frame 13 (on the right side in the traveling direction of the transplanter. Hereinafter, all right and left sides are the side sections in the traveling direction of the transplanter). ), And extends upward through the right space of the machine control mechanism formed between the lifting cylinder 21, the balance rod 22, and the right connecting rod 26. And the first planting transmission case 3
Reference numeral 1 denotes a left side of the planting section transmission case 30, and a second planting transmission case 32 is further left side of the first planting transmission case 31. Since the right space portion is wider than the left space portion by the amount that the rolling cylinder 27 is not provided, it is preferable to arrange the planting section transmission case 30 on the right side.

By arranging the planting section transmission case 30, the first planting transmission case 31, and the second planting transmission case 32 separately on the left and right, the weight balance on the left and right is improved.

FIG. 3 is a perspective view of the seedling supply device 4, and FIG.
4 and FIG. 5 shows a partially enlarged view of the lug 51 driven by the endless belt 50 (FIG. 4) while placing the leaves of the sweet potato seedlings. And one of the pair of root pinching belts 53 of the sweet potato seedlings 53, 54 is disposed at a position facing the leaf feeding section 52 provided with the leaf feeding section 52.

The leaf feeding section 52 is provided with a plurality of lugs 51... Arranged at equal intervals and a leaf portion mounting plane 52a for sweet potato seedlings. In addition, the sweet potato leaves are arranged by arranging the pair of stock holding belts 53 and 54 such that the plane 53a of one stock holding belt 53 and the leaf portion placement plane 52a of the leaf feeder 52 are in the same plane. The portion is placed on the leaf portion placement plane 52a of the leaf feeding section 52, and the root portion of the sweet potato is placed on the flat surface 53a of the root clamping belt 53, and the sweet potato seedling is moved along with the movement of the lug 51. The holding belt 54 is conveyed in a certain direction.

One of the stock-holding belts 53 has three rollers 55a, 55b, so that the endless belt forms a triangle.
It is movably supported at 55c. Further, the other stock base holding belt 54 has a belt plane that forms a pair with one belt plane of the triangle forming portion of the stock base holding belt 53,
It is composed of an endless belt driven by 6a and 56b. Therefore, when the seedlings are conveyed to the belt planes opposed to each other by the pair of stock holding belts 53 and 54, the stock portions of the seedlings are conveyed while being sandwiched between the pair of stock holding belts 53 and 54. A pair of root clamping belts 53 and 54 are arranged so that the root portion of the seedling is conveyed in a direction approaching the field.

The seedlings nipped and conveyed by the pair of stock nipping belts 53 and 54 are released from being nipped by the belts 53 and 54 at the lower ends of the belts 53 and 54. 5, the pair of grasping hands 58 provided at the tip of the planting tool 57 are on standby.
Of the pair of gripping hands 58. When the pair of gripping hands 58 are on the lower end side of the pair of stock holding belts 53 and 54, the operation is performed so as to grip the seedling.

Next, the seedling planting apparatus 5 will be described. FIG. 6 is a perspective view of a seedling planting device 5 including a device including a planting tool 57.
Shown in The seedling planting device 5 has a rotating shaft 61 having one end pivotally attached to a distal end of a large cam 60 fixed to a rotating shaft 59 to which the power of the engine 9 is transmitted, and a rotatable free end at the other end of the rotating shaft 61. And a rotation shaft 64 provided on a rotation base of the rotation arm 63, and a rotation shaft 64 provided on the rotation shaft 64, and the rotation shaft 64 is used as a rotation base. Another substantially “C” shaped adjustment arm 65 is provided.

Further, the first cam 67 is fixed to the rotating shaft 61 which is an intermediate portion of the swing arm 63 and is opposite to the large cam mounting side with the swing arm 63 interposed therebetween. A second cam 68 is pivotally mounted on the second cam 68, and these cams 67, 68 are urged by a spring member 69 described later so that their side surfaces are in contact with each other.

A base of a planting tool holding arm 66 is rotatably attached to the tip of the swing arm 63.
The implanting tool 57 is rotatably attached to the cylindrical portion 66a at the tip of the implanting tool holding arm 66. In order to open and close a pair of gripping hands 58 at the tip of the implanting tool 57, The tip of a first hand opening / closing arm 71 is pivotally attached to the base of the planting tool 57, and the tip of a second hand opening / closing arm 72 is attached to the other end of the first hand opening / closing arm 71. It is provided pivotally. The other end of the second hand opening / closing arm 72 is provided with a roller 73 that moves on the side surface of the large cam 60.
In the middle portion of, a cylinder 74 penetrated through the second hand opening / closing arm 72 and a gripping hand 58 provided between the cylinder 74 and the roller 73 are urged in a direction for gripping the seedling. A spring member 76 having a function is attached.
The roller 73 is urged by the spring member 76 toward the large cam 60 at the time of the upward stroke of the planting tool 57, and is pressed against the side surface of the large cam 60.

Further, an arm 78 having both ends pivotally attached to the distal end portion of the adjusting arm 65 and the end portion of the implanting device holding arm 66 opposite to the attachment portion of the implanting device 57, and the most distal end portion of the adjusting arm 65. A spring member 69 is provided to connect the swing member 63 to the intermediate portion of the swing arm 63, and the cylinder 74 and the arm 78 are pivotally connected by a connecting member 79 (X- in FIG. 6).
FIG. 7 which is an X-ray sectional view).

The operation of the seedling planting apparatus 5 having the above configuration is performed as follows. When the rotating shaft 59 rotates by the engine power, the large cam 60 fixed to the rotating shaft 59 rotates in the direction of arrow a. Next, the swing arm 63 interlocking with the rotation of the large cam 60 in the direction of the arrow a rotates in the direction of the arrow b. By the rotation of the swing arm 63 in the direction of the arrow b, the side of the planting tool holding arm 66 on which the planting tool 57 is mounted also rotates in the same direction as the arrow c. However, the end (arm 78 mounting side) of the planting tool holding arm 66 opposite to the side where the planting tool 57 is mounted rotates in the direction of arrow d. Due to the rotation of the end of the planting tool holding arm 66 in the direction of arrow d, the adjustment arm 65 rotates in the direction of arrow e. By the rotation of the adjusting arm 65 in the direction of the arrow e, the second cam 68 moves on the side surface of the first cam 67 toward the concave portion. The movement of the second cam 68 causes the arm 78 to move in the direction of arrow f, and the second hand opening / closing arm 72 moves in the direction of arrow g in conjunction with the movement of the arm 78 in the direction of arrow f. The tool holding arm 66 has an arrow h
Move in the direction. A series of movements of the large cam 60 starting from the arrow a move the implant holding arm 66 in the direction of the arrow h.

At this time, the second hand opening / closing arm 72 shown in FIG. 6 moves in the direction of arrow A (see also FIG. 8), and this movement causes the first hand opening / closing arm 71 to move in the direction of arrow B (FIG. 8). See also the first hand opening / closing arm 7
By the movement in the direction of arrow B, one of the pair of gripping hands 58 that rotates together with this moves in the direction of arrow D to move in the direction of gripping the seedling (the other gripping hand 58 does not move).

As a result, the implant holding arm 6 shown in FIG.
The downward movement of the turning trajectory X at the tip of No. 6 is performed,
When the second cam 68 moves on the side surface of the first cam 67 toward the concave portion and moves to a deep position (a) of the concave portion, the gripping hand 58 at the tip of the planting tool holding arm 66 moves to the end of the turning trajectory X. Reaching the falling point, the arm 71,
Arrows A ′, B ′, D ′ of 72 and hand 58
(See FIGS. 6 and 8).
Is opened, and the size of each member, the mounting angle, the shapes of the cams 60, 67, and 68 are designed so that the seedlings can be planted in the field.

Next, the large cam 60 is moved to the bottom dead center 60 of the turning locus.
When the rotation is further continued from y and the solid arrow a in FIG. 6 is rotated, each of the members moves in the direction indicated by the solid arrow, and the turning trajectory X of the tip end of the implant holding arm 66 shown in FIG. Is made to rise. When the large cam 60 continues to rotate and reaches the top dead center 60x of the solid arrow a in FIG.
7 returns to the initial state.

As described above, the seedling transplanter is characterized in that the root of the sweet potato seedling is pinched by the pair of pinching belts 53 and 54, transferred to the gripping hand 58, and transplanted forward in the traveling direction of the transplanter. Is a sweet potato seedling transplanter.

Therefore, since the seedlings 57 plant the seedlings toward the front of the machine body, the seedlings can be planted long in the soil without making the turning trajectory X of the planting tools 57 very long back and forth.

Further, a single holding belt 5 of the seedling transplanter is used.
At 3, the root portion of the sweet potato seedling is first transferred, and at the same time, the leaf portion is sent on the flat surface 52a with the lug 51, and the root portion is pinched and sent from both sides by a pair of pinching belts 53 and 54 from the middle.
In the meantime, the planting tool 57 approaches the belts 53 and 54 from below between the pair of belts 53 and 54, and receives the vine seedlings such as sweet potatoes.
The seedlings 57 can receive the seedlings while holding the seedlings at the leaf feeding portion 52 with the lugs 51 and the rugs 51, so that the seedlings can be reliably received, and poor planting and lack of planting can be prevented. In addition, since the posture of the seedlings can be prevented from changing at the time of inheriting, the seedlings can be planted in an appropriate posture by the planting tool.

The pair of gripping hands 58 of the planting tool 57 of the seedling transplanter are connected to the arrow A of the second hand opening / closing arm 72.
And the movement of the first hand opening / closing arm 71 in the direction of arrow B and the movement in the opposite direction, the first hand opening / closing arm 71 can grip and release the seedling. No special drive shaft is required for opening and closing the hand 57. Therefore, the planting drive mechanism can be simplified, and the versatility of the planting device can be improved.

[0033]

According to the present invention, the seedlings can be transplanted forward in the traveling direction of the transplanter, so that the seedlings can be planted long in the soil. In addition, the transplanter of the present invention, the planting tool can receive the seedlings in a state where the seedlings are held by a pair of sandwiching belt, the receiving of the seedlings is reliably performed,
Poor planting and planting shortage can be prevented. Further, since no special drive shaft is provided for opening and closing the hand of the planting tool of the seedling transplanter of the present invention, the planting drive mechanism can be simplified, and the versatility of the planting device is improved.

[Brief description of the drawings]

FIG. 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.

FIG. 3 is a perspective view of a pair of a holding belt and a lag belt portion of the seedling transplanter of FIG. 1;

FIG. 4 is a side view of a pair of a holding belt and a lag belt of the seedling transplanter of FIG. 3;

5 is an enlarged side view showing a state where the seedlings at the lower end portions of the pair of holding belts of FIG. 4 are transferred to a band of a planting tool.

FIG. 6 is a perspective view of a seedling attachment of the seedling transplanter of FIG. 1;

FIG. 7 is a partially enlarged view of the seedling attachment of FIG. 6;

FIG. 8 is a partially enlarged view of the seedling attachment of FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Seedling transplanter 1a Running part 1b Planting part 2 Rear wheel 3 Front wheel 4 Seedling supply device 5 Seedling planting device 6 Steering handle 7 Running part transmission case 9 Engine 10 Hydraulic pump 11 Fuel tank 12 Bonnet 13 Connection frame 14 Main frame 15 Rotating cylinder 16 Running transmission case 17 Front wheel support frame 17a Pivot shaft 18 Front wheel support rod 20 Hydraulic valve unit 21 Elevating cylinder 21a Piston rod 22 Balance rod 23 Mounting member 24 Guide shaft 25 Swing arm 26 Connecting rod 27 Rolling cylinder 28 Ground plate REFERENCE SIGNS LIST 30 planting section transmission case 31 first planting transmission case 32 second planting transmission case 34 upper frame 40 planting depth adjusting lever 41 seedling mounting table 50 endless belt 51 lug 52 leaf feeder 52a leaf part placement plane 53 54 Stock base holding belt 53a Stock base partial placement plane 55a, 55b, 55c, 56a, 56b Roller 57 Planting tool 58 Gripping hand 59 Rotating shaft 60 Large cam 61 Rotating shaft 63 Swing arm 64 Rotating shaft 65 Adjusting arm 66 Planting Attachment holding arm 66a Cylindrical part 67 First cam 68 Second cam 69 Spring member 71 First hand opening / closing arm 72 Second hand opening / closing arm 73 Roller 74 Cylindrical body 76 Spring member 78 Arm 79 Connecting member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masayoshi Noguchi 531-7, Teraicho, Takamatsu-shi, Kagawa Pref.

Claims (1)

[Claims] 1. A seedling transplanting machine having a seedling transplanting device on an airframe driven by a prime mover, the seedling transplanting device comprising: a driving force transmission mechanism from the prime mover; and a pair of opening and closing operations performed by the driving force transmission mechanism. A seedling having a grasping hand, forming a non-circular turning trajectory toward the front side in the traveling direction of the transplanter, and seedling when the hand of the implanting tool reaches the lowermost point of the non-circular turning trajectory The hand of the planting tool that held the
A seedling transplanter comprising an interlocking mechanism driven by the driving force transmission mechanism so as to plant seedlings in a field.