JPH074085B2 - Seedling transplanter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a machine configuration of a seedling transplanter for planting seedlings in a field.

[Conventional technology and its problems]

In a conventional seedling transplanter, the body is composed of a mission case and a transmission case provided in the center of the body, and in order to increase the strength of the body, the mission case and the transmission case must be large, and they are small and lightweight. It was difficult to obtain a seedling transplanter with good front-back balance and good seedling planting attitude. Further, since the position of the operator who carries out the seedling planting work and the vertically operating seedling planting device are close to each other, there is a problem in safety.

[Technical means for solving the problem]

In order to solve the above-mentioned problems, the present invention configures a machine body with left and right vertical frames 1 and 2 and horizontal frames 3 that connect the left and right vertical frames 1 and 2 at a plurality of places, and a front body of the machine body is provided. In the seedling transplanter in which the engine 4 is arranged and the steering handle 17 is arranged at the rear part of the machine body, and the left and right front grounding wheels 10 and 10 and the left and right rear grounding wheels 41 and 41 are provided on the left and right sides of the machine body, the rear part is provided on the body. Between the rear part of the seedling stand 5 and the control handle 17, which are inclined so that the height is low and the front part is high, and in the space 7 formed by the frames 1, 2, 3 ... The seedling planting device 6 is provided so as to be separated from the operator's position, and the seedling planting device 6 is provided near the left and right rear grounding wheels 41, 41 in a side view of the machine body. This is a seedling transplanter characterized by setting attachment positions.

[Advantageous effects of the invention]

According to the present invention, since the machine body is composed of the left and right vertical frames 1 and 2 and the horizontal frame 3, the mission case and the transmission case can be downsized, and the engine 4 is provided at the front part of the machine body. Placed and steering handle 17 at the rear of the aircraft
And the left and right front grounding wheels 10 on both left and right sides of the aircraft.
10 and left and right rear grounding wheels 41, 41 are provided, and since the seedling transplanter is equipped with the seedling mounting table 5 that is inclined so that the rear part is low and the front part is high on the machine body, the front and rear balance of the machine body is also good. As a result, it is possible to obtain a seedling transplanter that is small, lightweight, and well-balanced in the front and rear.

Further, a seedling planting device 6 that operates up and down is arranged between the rear portion of the seedling mounting table 5 and the control handle 17 and in the space portion 7 formed by the frames 1, 2, 3 ... Since the planting device 6 and the operator's position are provided separately from each other, the left and right vertical frames 1, 2, horizontal frames 3 ... Which can be configured as the lightweight body can also be used as protective members for the seedling planting device 6. At the same time, the safety of workers can be secured.

Furthermore, since the seedling planting position of the seedling planting device 6 is set near the left and right rear grounding wheels 41, 41 in a side view of the machine, the seedlings are stably supported by the left and right rear grounding wheels 41, 41 at the rear of the machine. Can be planted, the planting depth and posture of planting are stable, and good planting work can be performed.

〔Example〕

A vegetable seedling transplanter according to an embodiment of the present invention will be described in detail with reference to the drawings.

Reference numeral 8 denotes a mission case, which is provided on both left and right sides of the wheel transmission case 9 so as to face downward and is rotatable.
・ Front left and right drive front wheels 10 as front left and right ground wheels
It has 10 shafts.

Reference numeral 11 denotes a planting portion transmission case, which is fixedly connected to the rear portion of the mission case 8 via a transmission case 12.

Reference numeral 13 denotes a sub-plantation transmission case, which is fixedly connected to the rear portion of the planting section transmission case 11 with an inclination toward the rear upper side of the machine body.

Reference numeral 14 denotes a left frame pipe, which is fixed to the rear end of the transmission case 13 with the sub-plantation.

The transmission case 12, the planted portion transmission case 11, the sub-planted transmission case 13, and the left frame pipe 14 constitute a left vertical frame 1.

Reference numeral 15 denotes a front right frame pipe, the front end of which is fixed to the rear end of the mission case 8 and the rear end of which is fixed to the lateral frame 3.

Reference numeral 16 is a rear right frame pipe, the front end of which is fixed to the horizontal frame 3 and is provided so as to be inclined obliquely upward and rearward of the machine body.

The front right frame pipe 15 and the rear right frame pipe 16 form a right vertical frame 2.

The front right frame pipe 15 and the transmission case 12 are fixedly connected to each other at a substantially central portion thereof by a horizontal frame 3.

Reference numeral 17 denotes a steering handle gripped by an operator for maneuvering the airframe, which includes the left frame pipe 14 and the rear right frame pipe.
It is fixed by tightening fastening metal fittings 80, 80 to fixing metal fittings 14 ', 16' provided at the rear end of each of the sixteen.
That is, if the tightening of the fasteners 80/80 is loosened, the steering handle 17 can be moved in the left-right direction.
It is possible to fix the position of 17 in a state in which it is laterally offset from the state shown in FIG.

Then, the above-mentioned mission case 8 and the steering handle 17
The horizontal pipe portion 17 'also serves as the horizontal frame 3.

An engine 4 is directly connected to the rear side of the transmission case 8 via a centrifugal clutch case 18 having a built-in centrifugal clutch 18 ', and the lower side thereof is a front right frame pipe 15
It is connected to a support plate 19 fixed to the base plate with bolts. When the drive shaft of the engine 4 rotates above a certain number of revolutions (when the number of revolutions of the engine 4 is increased to a seedling planting work state by a throttle lever 64 described later), the centrifugal clutch 18 '
Are connected, and the power of the engine 4 is transmitted to the mission case 8.

The engine 4, the transmission case 8 and the front right frame pipe 15 form a rigid frame structure that is rectangular in a side view.

Reference numeral 5 is a seedling mounting table, which includes left and right standing frames 5a and 5a and front and rear bottom plates 5b and 5c.
The seedling transfer belt 20 is wound around the space of the bottom plate of the frame formed by and is stretched in the front-rear direction. Reference numeral 21 is a belt winding drive roll, and 21 'is a belt winding driven roll.

Then, the belt winding drive roll 21 includes the ratchet mechanism 22.
Drive lever and drive lever
23 are provided on both left and right sides. Reference numeral 24 denotes a rotor for rotating the drive lever 23 when the seedling mounting table 5 comes to the left and right lateral movement ends, and is fixedly attached to the constant rotation shaft 25 protruding to the left and right outside of the planting section transmission case 11. ing.

However, the seedling transfer belt 20 rotates a fixed amount (only one seedling width) when the seedling mounting table 5 moves to the left and right ends, and the seedling A mounted on the seedling mounting table 5 is transferred to the seedlings below. It is configured to be transferred to the receiving frame 26.

Reference numeral 26 is a seedling receiving frame, which is located on the rear end side of the seedling mounting table 5 and has metal fittings 27, 27 on the transmission case 13 with sub-planting and the rear right frame pipe 16.
, And a seedling take-out port 28 is provided at the center of the left and right.

Reference numeral 76 denotes a seedling receiving rod made of a rod, which is fixed to the horizontal plate 77 provided between the left and right standing frames 5a and 5a of the seedling mounting table 5 at the upper part of the seedling receiving frame 26 at a constant interval and has a comb tooth shape. The lower end is opened, and each of the seedling receiving rods 76 ... Is provided so as to support the rear side of the pot container for each plant of the vegetable seedlings A. In addition, the seedling planting fixed claws 6b and the seedling planting movable claws 6c, which will be described later, are engaged with each other by sandwiching the seedling receiving rod 76 so as to separately hold one seedling A (a pot container of one stock). Operate.

Reference numeral 78 denotes a synthetic resin (nylon) brush, which is provided between the left and right standing frames 5a and 5a of the seedling placing table 5 to prevent the stems and leaves of the seedling A from falling backward.

29, 29, 30 and 30 are supporting rollers for the seedling mounting table 5, and the rails 82 and 83 fixed to the lower surface of the seedling mounting table 5 are placed on the supporting rollers 29, 29, 30 and 30, respectively. Move left and right sideways. The supporting rollers 30 are pivotally attached to the upper end of the seedling table supporting member 81 which also serves as the horizontal frame 3 by pivot shafts 84.

The seedling table support member 81 includes the left and right support frames 85 and 86 and the left and right support frames.
The upper and lower connecting rods 87 and 88 for connecting and fixing 85 and 86 form a closed-loop (rectangular) rigid frame structure in front view, and the front right frame pipe 15 and transmission case 12 are fixed with bolts 89 ... It is installed and has a structure that doubles as a reinforcing frame for the machine body.

31 is a seedling table lateral movement drive spiral axis having a spiral groove,
The follower 32 is engaged with the spiral groove, and the follower 32 is laterally reciprocated laterally by the rotation of the seedling table lateral movement drive spiral shaft 31. Then, the seedling placing table 5 is connected to the follower 32 via the connecting metal fitting 33, and the seedling placing table 5 moves left and right laterally reciprocally as the follower 32 laterally reciprocates laterally. 31 'and 31' are bellows-shaped boots that cover the seedling table lateral movement drive spiral shaft 31.

6 is a seedling planting device, which is a box-shaped seedling plant body with a hollow interior.
Two seedling planting nails, a seedling planting fixed nail 6b and a seedling planting movable nail 6c, and a seedling pushing tool 6d are attached to 6a, and an operating mechanism of the seedling planting movable nail 6c is provided inside the seedling planting tool body 6a. The operation of holding the seedling A or conversely separating the held seedling A is performed. Then, the seedling pushing tool 6d is configured to move downward at the same speed as the raising speed of the seedlings 6b and 6c from the moment when the seedlings 6b and 6c release the held seedling A. , From the position where the seedling A is planted in the field by the seedlings 6b and 6c.
Even if 6c moves up, it doesn't move.

Then, the main body 6a of the seedling planting device 6 is pivotally attached to the first rotating case 34, the first rotating case 34 is pivotally attached to the second rotating case 35, and the seedling planting claws 6b and 6c of the seedling planting device 6 are attached. The transmission mechanism is built into the first rotating case 34 and the second rotating case 35 so that the locus P drawn by the tip of the is narrow in the front-rear direction and long in the up-down direction, and the base of the second rotating case 35 is sub-planted. Transmission case 13
Is pivoted on.

However, the seedling planting device 6, the first rotating case 34, and the second rotating case 35 are the transmission case 13 with the sub-planting and the left frame pipe 14.
And rear right frame pipe 16, horizontal frame 3 and horizontal pipe 1
It is provided so as to operate in the space 7 formed by 7 '.

Reference numeral 36 denotes an opening device for driving and rotating a rotary arm 38 having a proximal end fixed to a rotary shaft 37 that is driven to rotate while protruding from the planting section transmission case 11, and is pivotally attached to the planting section transmission case 11. A locus P'in which the tip of the opening tool 40 fixed to the tip end of the rocking arm 39 which is swung by the rocking arm plunges into the soil at the seedling planting position.
It is provided to draw. In addition, the main body 36a of the perforator 36
The inside is configured as a cavity 36b.

90 is a hot air fan, which has a heating wire inside and is configured to blow hot air to the extent that it melts the mulch film.

91 is a bellows-shaped synthetic resin pipe, and hot air fan 90
The main body 36a of the swirl device 36 is connected to the hot air fan 90
The hot air generated by the air blower is blown into the cavity 36b in the main body 36a of the swirling device 36.
Is configured to be discharged from the air outlet 36c of the cavity 36b opened on the lower side of the perforator 40, and the hot air hits the mulch film perforated by the perforator 40. The mulch film is melted and a beautiful hole for planting seedlings is opened.

Then, the opening device 36 operates in the space 7 ′ formed by the transmission case 12, the planting section transmission case 11, the front right frame pipe 15, the seedling stand support member 81, and the lateral frame 3. Is provided.

41, 41 are left and right rear wheels as rear left and right grounding wheels provided at the rear of the left and right drive front wheels 10, 10 at the rear of the machine body, and in the planting section transmission case 11 and the front right frame pipe 15. It is pivotally supported by wheel support arms 43, 43 fixed to the left and right sides of the lateral pipe 42 rotatably supported.

Reference numeral 44 denotes a wheel up-and-down moving device, which is a rotating handle 45 and a swinging arm 46 that is swung in the direction of the aero by the rotating handle 45.
And left and right arms 47 and 47 'fixed to the lateral pipe 42, a rod 48 connecting the left arm 47 and the swing arm 46, and left and right arms 49 and 49' fixed to the wheel transmission case 9 and 9. And a rod 50 connecting the left arm 49 and the left arm 47, and a right arm 47 '.
And a rod 50 'that connects the right arm 49' with the right arm 49 '. By rotating the rotation handle 45, the left and right front wheels 10, 10 and the left and right rear wheels 41, 41 can be moved up and down. I am configuring.

Reference numeral 51 is a leveling device for leveling the upper surface of the ridge B in front of the seedling planting position by the seedling planting device 6 to a certain level.
A parallel link mechanism 53 whose base end is axially attached to a support plate 52 fixed to the
And a flat plate 54 axially attached to the free end side of the parallel link mechanism 53.
It is configured to move up and down via the operation wire 56 by the operation of the operation lever 55 in the direction of the Hanni.

The leveling device 51 has a space case 7 ′ formed by the transmission case 12, the planting section transmission case 11, the front right frame pipe 15, the seedling table support member 81, and the horizontal frame 3. The parts are provided so as to be located.

57 and 57 are left and right soil cover rolls, which are planting part transmission cases 11
It is rotatably supported by the lower ends of the left and right swing arms 58, 58 fixed to a rotating shaft 59 which is rotatably supported by the. The left and right swing arms 58, 58 are biased upward by a spring 60. The left and right soil cover rolls are synchronized with the vertical movement of the perforation device 36 by the connecting body 39 'whose one end is fixed to the pivot arm 39 of the perforation device 36 and whose other end is in contact with the left and right pivot arm 58. 57 ・ 57 moves up and down to push the soil on the left and right sides of the planted seedling toward the seedling and cover the seedling with soil.

Reference numeral 61 is an alternator (generator), which is driven by the power of the engine 4 through the centrifugal clutch 18 'and is generated by a battery 62 fixed to a support base 62' fixedly mounted on the mission case 8. It is configured to store electricity. Therefore, the alternator 61 operates only when the drive shaft of the engine 4 rotates at a certain speed or more, that is, when the rotation of the engine 4 is increased by the throttle lever 63 to a certain value for performing seedling planting work. Since the engine 4 is not driven in the low rotation speed range, engine stall does not occur even if the engine 4 having low horsepower (low torque) is used, and a small and lightweight low horsepower engine can be used.

Reference numeral 70 denotes a planting clutch lever, which can be operated to stop or activate the seedling mounting table 5, the seedling planting device 6, the opening device 36, and the left and right soil cover rolls 57, 57 by swinging back and forth. It is configured to be possible.

Reference numerals 65 and 65 are left and right side clutch levers, and operation wires 67 are attached to the left and right arms 66 and 66 for switching the side clutches provided at the lower ends of the left and right wheel transmission cases 9 and 9, respectively.
-Connected via 67.

68 and 68 are left and right fixing brackets for fixing the left and right side clutch levers in a state where the side clutch is disengaged.
-65 is formed in a ring shape so that each can be scratched when the side clutch is disengaged (rotated in the direction of e).

A lever guide 69 is provided with guide grooves 71 and 72 for the operation lever 55 and the planted clutch lever 70. The guide groove 71 is provided with a locking groove 73 ... ing.

74 is a fuel tank, which is fixed to a support base 75 fixedly mounted on the mission case 8.

79 is a hood.

Next, the operation of the above example will be explained.
10 ・ 10 and rear wheels 41 ・ 41 set the machine so that it straddles the ridge B in the field, and turn the turning handle 45 to rotate the left and right front wheels 10.
・ 10 and the left and right rear wheels 41, 41 are moved up and down to adjust the seedling planting depth of the seedling planting device 6 to be appropriate. And
The operation lever 55 is operated to move the flat plate 54 up and down to adjust the seedling planting depth of the seedling planting device 6. Next, after the pot-shaped vegetable seedlings A grown by a paper-made seedling growing device in which pot containers are continuously arranged vertically and horizontally on the seedling placing table 5 are placed and accommodated, the engine 4 is started. Then, when the throttle lever 64 is raised from the idling speed to the seedling planting work speed, the power of the engine 4 is transmitted to each rotating portion through the centrifugal clutch 18 ', and the vehicle body is propelled by the rotation of the front driving wheels 10.

At this time, when the planting clutch lever 70 is operated to the clutch on position, the rotary arm 38 is rotated by the power of the engine 4, and the perforating tool 40 of the perforating device 36 moves up and down to move the seedling planting position to the multi position. It rushes into the soil where the film is stretched to make a hole in the mulch film and at the same time, a hole for planting is made in the ridge B. At this time, the perforator 40 itself is heated by the hot air discharged from the air outlet 36c of the perforator 36 to heat the multi-film cleanly, and the multi-film perforated by the perforator 40 becomes When the hot air hits, the mulch film in that part melts and a clean seedling planting hole opens. On the other hand, seedling stand 5
Is oscillated reciprocally in the left-right direction via the left-right drive mechanism, so that the seedling A located on the rear end side is moved left and right while being received by the seedling receiving frame 26, and the seedlings are fed to the seedling take-out port 28. , The planting claws 6b and 6c that draw the planting locus P are sequentially grasped and planted in the planting holes of the ridge B formed by the above-mentioned opening tool 40.

At this time, since the seedling placing table 5 is supported by the seedling placing table supporting member 81 that is firmly fixed to the left and right vertical frames 1 and 2, the seedling placing table 5 can be moved left and right in a stable state. The planting work of seedlings can be done properly.

Also, when you want to check the operating state of the seedling mounting table 5, the seedling planting device 6, the opening device 36, and the left and right soil cover rolls 57, 57 by stopping the progress of the aircraft, set the left and right side clutch levers 65, 65 to the side clutch. In the cut-off state, fix it with the left and right fixing brackets 68, 68, increase the rotation speed of the engine 4 with the throttle lever 64, and connect the clutch of the centrifugal clutch 18 '. The seedling mounting table 5, the seedling planting device 6, the opening device 36, and the left and right soil cover rolls 57
・ Only 57 can be activated.

Then, in particular, the left and right driving front wheels 10 and the left and right rear wheels 41
・ In the seedling transplanter in which 41 runs across the ridges, the seedling planting device 6, the opening device 36, and the leveling device 51, which are the respective working devices, are provided in the frames 1, 2, 3, ... on the left and right centerlines of the machine body. It can be provided in the space portions 7 and 7'formed as described above, and the body can be made compact and lightweight. Further, since the seedling planting device 6, the opening device 36, and the leveling device 51 are provided in the space portions 7 and 7'formed by the frames 1, 2 and 3 ..., the four sides are protected. It is also possible to prevent damage to other objects. Further, a seedling planting device 6 that operates up and down is arranged between the rear portion of the seedling mounting table 5 and the control handle 17 and in the space portion 7 formed by the frames 1, 2, 3 ... Planting device 6
The left and right vertical frames 1 and 2 and the horizontal frames 3 ... Which can be configured to have the lightweight machine body can also be used as protective members for the seedling planting device 6 because they are provided separately from the operator's position. It is possible to secure the safety of the person. Furthermore, since the seedling planting position of the seedling planting device 6 is set near the left and right rear grounding wheels 41, 41 in a side view of the machine, the seedlings are stably supported by the left and right rear grounding wheels 41, 41 at the rear of the machine. Can be planted, the planting depth and posture of planting are stable, and good planting work can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a vegetable seedling transplanter according to an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. , FIG. 4 is a plan view of the main part, FIG. 5 is an enlarged view of the main part,
FIG. 6 is an explanatory view of the operation of the opening device 36. In the figure, 1 is a left vertical frame, 2 is a right vertical frame, 3 is a horizontal frame, 4 is an engine, 5 is a seedling table, 6 is a seedling planting device, 81 is a seedling table supporting member, A is a seedling, P Is the seedling locus, P '
Shows the locus of the tip of the opening tool 40.

Continuation of front page (56) Bibliographic references Sho 60-160110 (JP, U)

Claims (1)

[Claims] 1. A fuselage is composed of left and right vertical frames 1, 2 and a horizontal frame 3 connecting the left and right vertical frames 1, 2 at a plurality of points, and an engine 4 is arranged at the front of the fuselage and at the rear of the fuselage. In the seedling transplanter with the steering handle 17 arranged, the left and right front grounding wheels 10, 10 and the left and right rear grounding wheels 41, 41 on the left and right sides of the machine, the rear part is low and the front part is high on the machine body. The seedling planting device 6 that moves vertically is provided between the rear portion of the seedling mounting table 5 and the control handle 17 that are inclined like this, and in the space 7 formed by the frames 1, 2, 3 ... Then, while the seedling planting device 6 and the position of the worker are provided separately,
A seedling transplanter characterized in that the seedling planting position of the seedling planting device 6 is set near the left and right rear grounding wheels 41, 41 in a side view of the aircraft.