JPH1080208A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the inserting depth and inserting angle of a seedling-taking out tine into a block soil in a pot capable of being readily regulated in a transplanter having a seedling-placing platform for placing and supporting a seedling tray having many pot parts arranged lengthwise and crosswise thereon supported in a transplanting frame installed in the rear of a traveling body, and the seedling-taking out tine for taking out the soil block seedling from the pot part one by one by picking the tine into the block soil in the pot part on the seedling tray and moving the tine backward. SOLUTION: This transplanter has a seedling-placing platform supported so that the relative position thereof may be freely regulated against a seedling picking out tine 24 and the seedling-picking out tine supported on a transplanting frame so that the seedling-picking out tine 24 may be regulated to swing around the tip part 24a as a center.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for transplanting seedlings such as vegetables into ridges or the like in a field.

[0002]

2. Description of the Related Art Conventionally, as a transplanting machine, a seedling mounting table for mounting and supporting a seedling tray for raising a soil block seedling in a pot portion formed in a large number of rows and columns, and a planting device for planting the soil block seedling in a ridge. And a seedling delivery device that takes out soil block seedlings one by one from the seedling tray and transports them to the planting device,
There is a type in which a soil block seedling is automatically planted on a ridge while running by being supported by a transplant frame provided on a traveling body.

In this transplanter, the seedling tray is intermittently traversed by laterally moving the seedling mounting table, and the seedling removal claws are inserted into the block soil in the pot portion while the seedling tray is traversed. After the seedlings are retracted, the seedlings are removed from the pot portion and transported to the planting device.
At the time when the removal of the seedlings from the horizontal row of pot portions has been completed, the seedling tray is fed by one pitch in the vertical direction of the pot portions,
In addition, the seedling tray is again intermittently fed to the opposite side.

[0004]

At the design stage, the transplanter is designed so that the seedling removal claw is inserted into the block soil of the seedling in an optimal state. There is a case where a slight error occurs and the seedling removal nail is not inserted into the optimum depth and angle with respect to the block soil of the seedling.

For such a case, it is conceivable to adjust the insertion depth and the insertion angle of the seedling removal nail with respect to the block soil, but it is difficult to adjust these at once. . In view of the above problems, an object of the present invention is to make it possible to adjust so that a seedling removal nail can be inserted into an optimum position for taking out a seedling, and to consider that the adjustment can be easily performed. .

[0006]

The technical means taken by the present invention to achieve the above object is to provide a transplanting frame 15 on the traveling body 2 and to attach a large number of pot portions P vertically and horizontally to the transplanting frame 15. By supporting the seedling mounting table 77 for placing and supporting the seedling tray T having the seedling tray T, inserting the seedling tray T into the block soil in the pot portion P of the seedling tray T, and then retreating,
In the transplanter provided with the seedling removal claws 24 for removing the soil block seedlings S one by one from the pot portion P, the seedling mounting table 77
Is supported on the transplantation frame 15 so as to be adjustable in relative position with respect to the seedling extraction nail 24, and in a posture where the seedling extraction nail 24 is inserted into the block soil, the seedling extraction nail 24 is centered on its tip 24a. It is characterized in that it is supported by the transplant frame 15 so that the insertion angle can be adjusted by a swinging operation.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 4 and 5, the vegetable transplanter 1 is a walking type having a transplanting device 3 and a steering handle 4 behind a traveling body 2. Are planted at predetermined intervals in the ridges R.

The direction of travel of the transplanter 1 is referred to as the front-back direction, and the lateral direction perpendicular to the direction of travel is referred to as the left-right direction. The traveling body 2 has a gantry 7 attached and fixed to a front portion of the transmission case 6 in a protruding forward direction, an engine 8 and the like mounted on the gantry 7, and a front wheel 9 and a rear wheel 10 on both left and right sides. Have been.

The power of the engine 8 is input to a power transmission mechanism in a transmission case 6, and the power input to the transmission case 6 is transmitted to a wheel transmission shaft projecting from the transmission case 6 to both left and right sides via a transmission mechanism. The first PTO shaft 12 is transmitted to the transmission case 11 and projects rearward from the rear surface of the transmission case 6, and the second PTO shaft 13 is provided behind the wheel transmission shaft 11 and projects left and right from the transmission case 6. It can be taken out.

A transmission case 14 is provided at the outer end of the left and right wheel transmission shafts 11 so as to be able to swing up and down around its axis, and a rear wheel 10 is supported at a lower portion of the transmission case 14.
Power is transmitted from the wheel transmission shaft 11 to the rear wheel 10 via a chain transmission mechanism in a transmission case 14 so that the rear wheel 10 is driven to rotate. The transplanting device 3 is provided on a transplanting frame 15 mounted behind the traveling body 2, and includes a planting body 16 for planting seedlings in the ridges R, and a seedling supply device 17 for supplying seedlings to the planting body 16. , Covering / pressing roller 1
8 and perforation means 19 for forming holes for planting seedlings by the action of heat (or by making cuts) in the multi-film covering the ridges R.

The transplant frame 15 includes a main frame 20 having a front portion fixed to the transmission case 6, the steering handle 4 having a front end fixed to a rear end of the main frame 20, and a second PTO having left and right front portions. It is mainly composed of a movable frame 21 supported on a shaft 13 so as to be rotatable around left and right axes. A soil covering / pressure reduction roller 18 is attached to the rear part of the movable frame 21, and the rear part of the movable frame 21 is changed in height (unevenness) on the upper surface of the ridge R by the soil covering / pressure reduction roller 18.
, And the vertical spacing between the earth covering / pressure reduction roller 18 and the movable frame 21 can be adjusted.

The planting body 16 is supported on the movable frame 21 via a swing link mechanism so as to be vertically swingable. The swinging link mechanism is driven by the power from the second PTO shaft 13 so that the planted body 16 moves so as to draw a long elliptical locus in the vertical direction, and seedlings are supplied at the upper end of the locus, and the lower end of the locus. On the side, the planting body 16 protrudes into the ridge R.

The planting body 16 is provided with an opener which can be opened and closed back and forth at the lower portion. The opener is opened and closed by the interlocking tool when it enters the ridge R at the lower end of the locus of the planting body 16. A transplanting hole is formed in the ridge R, and the seedlings are dropped into the transplanting hole. Thereafter, the seedlings are completed by bringing the soil from the left and right sides of the transplanting hole with the soil covering / pressing roller 18 and crushing the soil. Has become.

A seedling supply device 17 is disposed on the upper rear side of the main frame 20 and supports a seedling tray T which accommodates a large number of soil block seedlings S vertically and horizontally in a backwardly inclined manner, and intermittently and vertically. A seedling tray feeder 22 for feeding, and a seedling that is disposed in front of the seedling tray feeder 22 and that picks up seedlings one by one from the seedling tray T by a seedling extraction claw 24 and conveys the seedlings to the planted body 16. And a feeder 23.

The seedling tray T is, as shown in FIG.
It is made of plastic, is thin, has flexibility, and has a large number of pots P arranged in a grid pattern at predetermined pitches in the vertical and horizontal directions, and the opening edges of the pots P are connected to each other in a plane. It is configured. Then, the pot portion P is filled with floor soil, sowed and seedling there, so that the soil block seedling S
Have been nurtured.

As shown in FIGS. 10 and 11, the seedling feeding device 23 has the above-described seedling picking nail 24 and a nail operating mechanism 25 for driving the seedling picking nail 24. The seedling removal claws 24 are formed of round rods with sharp tips, are provided in a pair on the left and right, and are juxtaposed so as to move closer to the tip as they move toward the tip. The claw operating mechanism 25 includes:
The reciprocating operation of the seedling picking nail 24 between the seedling tray T and the planted body 16 while changing the posture of the seedling picking nail 24, and the nail support 2 to which the pair of seedling picking nails 24 is attached.
6 and a nail guide 2 for guiding the pair of seedling removal nails 24
7 and a holder 28 that supports the claw support 26 and the claw guide 27 so as to be able to reciprocate in the longitudinal direction, respectively.

The pawl operating mechanism 25 is mounted and supported on a gear case 30 fixed on the main frame 20 and fixedly mounted on a support 29 made of a plate so as to adjust the mounting posture. , The first projecting to the left
, And a second output shaft 33 protruding rightward. The input shaft 31 is operatively connected to the first PTO shaft 12 via a universal joint 34 to receive power from the engine 8. The first and second output shafts 3
2 and 33 are interlockingly connected to the input shaft 31 via a gear transmission mechanism.
Is driven, and the seedling tray feeding device 22 is driven by the second output shaft 33.

A crank body 35 is connected to the first output shaft 32.
The crank body 35 has a crank pin 36.
The first output shaft 32 is provided with a drive cam 37 coaxially with the crank body 35. A lower part of a swing arm 38 is pivotally connected to a lower left portion of the gear case 30 via a swing shaft 39 so as to be rotatable around the left and right axes. A groove cam 40 extending in the longitudinal direction) is formed.
The roller 41 which is externally fitted on the pier is engaged.

A holding member 28 is pivotally connected to the upper part of the swing arm 38 via a pin 42. The holding member 28 is a cylindrical portion 2 for guiding the claw support 26 made of a pipe so as to be axially movable.
8a, so that the nail support 26 can move back and forth toward the seedling tray T. Also, this claw support 26
The pair of seedling removal claws 24, which are pierced obliquely into the block soil of the seedlings S in the pot portion P from the diagonal direction, are attached to the tips of the pottings P.

A plate-like support member 43 is attached and fixed to the upper surface of the gear case 30 by bolts, and a roller 45 is attached to the holder 28 through a bracket 44 so as to be freely rotatable. It is engaged with a cam groove 48 formed in a guide plate 47 which is swingably attached to the member 43 via a pin 46. The guide plate 47 has a rolling roller 49 at the tip of a downwardly projecting arm. The rolling roller 49 is in contact with the driving cam 37 and rotates the driving cam 37 in the counterclockwise direction in FIG. The guide plate 47 is swingable about the pin 46. The guide plate 47 is urged by a spring 50 interposed between the guide plate 47 and the support member 43 in a direction in which the roller 49 is pressed against the drive cam 37.

The base 51 provided at the base end of the claw support 26
And a cylindrical portion 28 of a holding body 28 for internally fitting and holding the claw support 26
a coil spring 52 that urges the claw support 26 in the retreating direction is interposed between the claw support 2 and the claw support 2.
A hook attachment 53 is fitted and fixed to the front end of the bracket 6. The bases of the pair of seedling removal claws 24 are pivotally supported by the claw attachments 53 via shafts 54, and the pair of seedling removal claws 24 swings so that the tips move far and near with respect to the claw attachments 53. It is possible.

At the lower end of the holding body 28, an extrusion link 55
Are rotatably connected via pins 56. A long groove 57 is formed at the tip of the pushing link 55, and is engaged with a pin 58 provided on a protruding arm of the claw attachment 53. The extrusion link 55 includes a crank pin 36 of the crank body 35.
A substantially arc-shaped cam plate 59 is provided which can abut against the cam plate 59.

The claw guide 27 is slidably inserted in the claw support 26, the base 51, and the claw attachment 53 in the longitudinal direction. The claw guide 27 is formed of a round bar or the like and has a front end. A guide portion 60 having a guide hole for guiding the seedling removal claw 24 is provided, an L-shaped operating member 61 is attached to the rear end, and a stopper 62 is fixed to an intermediate portion. Coil spring 63 between
Are fitted in a compressed manner.

An operating piece 64 is pivotally supported by the holding body 28 and is urged clockwise in FIG. 10 by a spring. The operating piece 64 has a substantially T-shape having one foot and both arms.
A lock portion 64a is formed on one arm, a release portion 64b is formed on the other arm, and a pushing portion 64c is formed on the foot. The operating member 61 fixed to the claw guide 27 has a portion parallel to the claw guide 27, and the parallel portion is
8 guides the slide in a detented state, and engages with the lock portion 64a of the operating piece 64 protruding from the sliding surface, thereby restricting the movement of the claw guide 27 in the protruding direction.

A lock arm 66 is pivotally supported on the base 51 at the rear end of the claw support 26.
6 is urged in the clockwise direction in FIG. 10 by a spring, and a hook portion 69 capable of engaging with the engaging portion 68 of the holding body 28 is formed at the distal end. In the above configuration, when the output shaft 32 rotates counterclockwise from the state shown in FIG.
When the crank body 35 rotates with the roller 41 fitted to the crank pin 36, the cam plate 59 is pushed and the pushing link 5 is pushed.
5 is swung toward the seedling tray T, whereby the nail attachment tool 53 and the nail support 26 are pushed toward the seedling tray T with respect to the holder 28 as shown in FIG. The springs 52 and 63 are compressed. Thereby, the seedling removal nail 2
4 protrudes and penetrates the block soil of the seedling S, and retains a restoring force for the nail support 26 to retreat.

When the seedling removal nails 24 protrude and pierce the block soil of the seedlings S, the seedling removal nails 24 are regulated by the guide holes of the guide portions 60, so that the right and left seedling removal nails 24 are located between the tips. The seedling removal claw 24 is configured to be pierced into the block soil while the distance is narrowed. Further, the hook support member 26 is projected and the hook 69 of the lock arm 66 is engaged with the engaging portion 68 of the holding member 28 to maintain the state, and the swing arm 38 and the guide plate 47 swing. do not do.

When the output shaft 32 further rotates counterclockwise from the state shown in FIG.
By sliding in the groove cam 40, the swing arm 38 swings around the swing shaft 39 in the direction away from the seedling tray T,
The seedling removal claw 24 retreats with respect to the seedling tray T together with the claw support 26, the claw guide 27, and the holder 28, and the block soil of the seedling S is removed from the pot portion P.

Thereafter, when the output shaft 32 further rotates counterclockwise, the claw support 26, the claw guide 27 and the holder 2
8, the seedling removal claw 24 moves in the direction away from the seedling tray T, and the roller 45 slides on the front rising portion of the cam groove 48, so that the seedling removal claw 24 and the like are changed to a substantially downward posture. S is placed in a downward position, and the seedling S is placed in the planted body 16.
Above the front of the

Then, when the seedling removal claw 24 is moved to a state in which the seedling removal claw is in a substantially downward position, the pushing portion 64 of the operating piece 64 is moved.
c comes into contact with an unlocking member 117 provided on the support member 43 so as to be adjustable in position. When the operating piece 64 is rotated, first, the locking of the operating piece 64 to the operating member 61 by the lock portion 64 a is released, and the nail guide 27 protrudes by the urging force of the spring 63 and is held by the seedling removal nail 24. The seedlings S are pushed out of the seedling removal claws 24 and detached, and the planted body 16 is removed.
From above. Thereafter, when the operation piece 64 further rotates, the lock arm 66 is pushed up by the release portion 64b to release the engagement between the hook portion 69 and the engaging portion 68, and the urging force of the coil spring 52 accompanies the claw guide 27. The nail support 26 retreats.

Thereafter, the output shaft 32 is rotated counterclockwise in FIG. 10 to move to the state shown in FIG. 10, and the above operation is repeated. As shown in FIGS. 1 to 3, the gear case 30 is provided at two places in front and rear of a support body 29 and at one place below.
Three bolts 7 which are arranged at different locations and which are screwed into screw holes provided in the gear case 30 through the support 29 in the left-right direction.
0 is attached and fixed to the support 29. Support 2
9 and bolt insertion holes 71 of the respective bolts 70
Is a tip 2 of the seedling removal nail 24 in a posture in which the seedling removal nail 24 protrudes so as to be inserted into the block soil of the seedling S.
It is formed in an arc-shaped long hole centered on 4a.

A plate 72 is interposed between the lower bolt 70 and the support 29, and the bolt 70 penetrates the plate 72.
2 is integrally movable along the bolt insertion hole 71. To the plate 72, one end of an adjustment bolt 73 arranged substantially on the longitudinal extension of the bolt insertion hole 71 is fixed, and the other end of the adjustment bolt 73 is connected to a support plate 74.
And a pair of nuts 75 arranged so as to sandwich the support plate 74 is screwed to the other end thereof. A pin 76 is fixed to the support plate 74, and the pin 76 It is attached to the body 29 so as to be rotatable around the left and right axes.

Therefore, by loosening each bolt 70 and screwing and retreating the nut 75 with respect to the adjustment bolt 73 to move the adjustment bolt 73 in the axial direction, the gear case 30 is moved to the tip end of the seedling removal claw 24. The mounting position can be adjusted about the center 24a, whereby the insertion angle θ of the seedling removal claw 24 with respect to the block soil of the seedling S is adjusted. As shown in FIGS. 6 to 8, the seedling tray feeding device 22 includes a seedling mounting table 77 for mounting the seedling tray T. The seedling mounting table 77 is disposed in the left-right direction and fixed to the handle 4. The upper and lower guide rails 78 are movably supported in the left-right direction. Further, the seedling mounting table 77 supports a mounting plate 79 that supports the bottom of the seedling tray T over a horizontal row of pot portions P.
The mounting plate 79 is disposed between a pair of side plates 80 disposed to face each other in the left-right direction, and the left and right ends of the mounting plate 79 are fixed to the facing surfaces (the inner surfaces in the left-right direction) of the left and right side plates 80. ing.

At the lower portion between the left and right side plates 80, a longitudinal feed drive shaft 8 is provided.
1 are arranged in the left-right direction,
A vertical feed driven shaft 82 is provided in the upper portion between the left and right sides in a horizontal direction. A pair of left and right driven sprockets 83 is fixed to the drive shaft 81, and a pair of left and right driven sprockets 84 is fixed to the driven shaft 82. Fixed. An endless chain 85 is mounted between the driving sprocket 83 and the driven sprocket 84, and the chain 85 is provided with a pot in the vertical direction (indicated by a symbol F in FIG. 6) of the seedling tray T. The transport pins 86 that engage with the gaps between the portions P are attached so as to protrude inward in the left-right direction. Therefore,
By rotating the drive shaft 81 in the direction indicated by the arrow A in FIG. 8, the seedling tray T is pushed by the transport pin 86 and can be fed vertically. The left and right side plates 80 are connected to each other by a connecting member other than the vertical feed drive shaft 81 and the driven shaft 82.

As shown in FIG. 8, a pair of upper and lower brackets 87 is attached to the rear side of the left and right side plates 80 of the left and right side plates 80 of the seedling mounting table 77.
A roller 89 is fitted to the guide rail 78 via a support shaft 88 so as to freely roll in the left-right direction. The bracket 87 includes a first support plate 87A fixed to the side plate 80 side, and a support shaft 8 connected to the first support plate 87A.
8 is attached to the second support plate 87B.

The first support plate 87A is superposed on the outer surface of the side plate 80, and includes a pair of bolts 90 penetrating the first support plate 87A and the side plate 80, and nuts screwed to these bolts 90, respectively. The second support plate 87B is attached and fixed to the side plate 80, and the second support plate 87B is overlapped on the inner side in the left-right direction of the first support plate 87A so as to penetrate the first support plate 87A and the second support plate 87B. Are fixed to the first support plate 87A by bolts 91 and nuts screwed to the bolts 91, respectively.

The bolt insertion hole 92 formed in the first support plate 87A for inserting the bolt 90 (or the bolt insertion hole formed in the side plate 80 for inserting the bolt 90) is attached to the mounting plate 7.
9 has a long hole extending in the direction D along the depth direction of the pot portion P of the seedling tray T placed on the seedling tray T, and is formed in the second support plate 87B. Hole 93 (or bolt 9 formed in first support plate 87A)
The bolt insertion hole (1 insertion hole) is a long hole that is long in a direction E (a direction orthogonal to the D direction) along the longitudinal direction F of the seedling tray T mounted on the mounting plate 79.

Accordingly, by loosening the bolts 90 and 91, the seedling mounting table 77 can be moved in the D and E directions. By adjusting the position of the seedling mounting table 77 in the D and E directions, The position of the pot portion P of the seedling tray T with respect to the seedling extraction nail 24 is adjustable in the D direction and the E direction. Note that the position movement direction of the seedling mounting table 77 is not limited to the D direction and the E direction, but may be in other directions, for example, up and down or front and rear directions. Further, the bolt insertion hole may be formed as a fool hole. The seedling mounting table 77 may be movable in the vertical direction and in any direction crossing the vertical direction.

In the seedling tray feeder 22, the length and width of the seedling tray T are the same, and the size of the opening of the pot portion P is different, but the interval between the openings of the pot portion P is substantially the same (that is, the lengthwise and widthwise direction). (The pitch between the centers of the pot portions P in the arrangement direction and the number of the pot portions P are different from each other).
Are not provided so as to engage with each other between the pot portions P, but the pot portions P in the vertical direction F of the two types of seedling trays T are provided.
The gap between them is provided at a position corresponding to the longitudinal direction F.

Here, the lateral feed mechanism of the seedling tray T will be described. The right and left side plates 80 are inserted between the left and right bearing members 94 which are arranged on both left and right sides of the seedling placing stand 77 and are supported by the handle 4. A transverse feed shaft 95 formed with a special screw (napier screw) formed by joining the valleys of the left and right screws cut at the same pitch is supported rotatably around the left and right shafts. A slider 96 that engages with the screw is externally fitted. An engaging portion 97 is formed on the slider 96 so as to protrude therefrom.
A pair of right and left engagement pieces 9 provided on the back surface of the support plate 49
It is inserted between eight.

Power is transmitted to the transverse feed shaft 95 from the gear case 26 via a wrapping transmission mechanism in a transmission case 99, and the transverse feed shaft 95 is intermittently driven to rotate. When the slider 96 is rotationally driven, the slider 96 moves left and right, and at the end of the screw formed on the lateral feed shaft 95, turns back, so that the seedling mounting table 77 is reciprocated intermittently in the left and right direction.

The lateral feed shaft 95 is stopped when the seedlings S are taken out of the pot P by the seedling take-out claws 24, and rotates after the seedlings S are taken out of the pot P.
The seedling mounting table 77 is configured to move by one pitch in the horizontal arrangement direction of the pot portions P. The engagement portion 97 of the slider 96 is movable between the left and right engagement pieces 98 in the vertical direction and in any direction perpendicular to the left and right engagement pieces 98 so that the relative position of the seedling mounting table 77 with respect to the seedling removal claw 24 can be adjusted. Have been.

The lateral feed amount can be switched in the gear case 26 so that the lateral feed amount corresponding to the horizontal pitch of the pot portions P of the two types of seedling trays T to be used selectively can be selected. ing. Next, the vertical feed mechanism of the seedling tray T will be described. The vertical feed cams 100 are fixed to the left and right sides of the horizontal feed shaft 95, and the right and left side plates 8 are attached to the seedling mounting table 77.
A vertical feed operation shaft 101 is rotatably supported during the time 0. The vertical feed operation shaft 101 has a follower 102 which engages with the vertical feed cam 100 when the seedling placing table 77 moves to the leftmost end or the rightmost end. Are provided on the left and right. The vertical feed drive shaft 101 is connected to the vertical feed drive shaft 1 via a link 103 or the like.
01 is linked to a vertical feeding means 104 provided on the left end side.

When the seedling mounting table 77 has moved to the left and right ends, the follower 102 is pushed by the vertical feed cam 100 to rotate the vertical feed operation shaft 101, and the link 103
The vertical feed means 104 is operated via the
1 is rotated so that the seedling tray T moves by one pitch in the vertical arrangement direction of the pot portions P. Thus, at the time when the removal of the soil block seedlings S from the horizontal row of pot portions P is completed, the seedling tray T is vertically fed by an amount corresponding to the vertical interval of the pot portions P.

In the above configuration, after assembling the transplanter 1, to adjust the relative positional relationship between the seedling removal claw 24 and the pot portion P (that is, the block soil of the seedling S), as shown in FIG. When the seedling tray T is placed on the seedling placing table 77, the position of the transport pin 86 is adjusted so that the lowermost pot portion P is located at the seedling removal position.
Is pierced by the block soil of the seedling S.

Next, the gauge 105 is brought into contact with the transport pins 86 and the mounting plate 79 without placing the seedling tray T. Then, the position of the seedling placing table 77 is adjusted in the D and E directions so that the tip 24a of the seedling removal claw 24 fits into and matches the concave portion of the tip 105a of the gauge 105. As a result, the seedling extraction nail 24 is adjusted to the optimum insertion depth, and the position of the tip portion 24a of the seedling extraction nail 24 in the vertical arrangement direction of the pot portion P is determined as the optimal position. (In the illustrated example, the distal end portion 24a of the seedling extraction nail 24 is configured to coincide with the center line O of the pot portion P.) Next, the insertion angle θ of the seedling extraction nail 24 becomes the optimum angle. The gauge is applied to the mounting plate 79 or the like to
Adjust the mounting position of.

As described above, the seedling S
The insertion depth and the insertion angle with respect to the block soil are adjusted. Here, a mechanism for switching the lateral feed amount of the lateral feed mechanism of the seedling tray T will be described. As shown in FIGS. 11 to 15, the input shaft 31 is provided with a bevel gear 107 that meshes with a bevel gear 106 provided on the first output shaft 32. Power is transmitted to one output shaft 32.

A toothless gear 108 is spline-fitted to the first output shaft 32, and a first gear is provided in the gear case 30.
An intermediate shaft 109 is provided parallel to the second output shafts 32 and 33 and supported rotatably around the axis. The intermediate shaft 109 has a transmission gear 110 meshed with the toothless gear 108. The first output shaft 3 which is spline-fitted
Power is intermittently transmitted from 2 to the intermediate shaft 109, and the intermediate shaft 109 rotates intermittently.

Further, a first traverse drive gear 111 and a second traverse drive gear 112 which are arranged at an interval in the axial direction on the intermediate shaft 109 are rotatable relative to the intermediate shaft. On the other hand, the second output shaft 33 has a first traverse driven gear 113 meshed with the first traverse drive gear 111.
And a second laterally driven driven gear 114 meshing with the second laterally driven gear 112 are externally fitted to be integrally rotatable.

The intermediate shaft 109 is disposed between the first lateral drive gear 111 and the second lateral drive gear 112, and is rotatable integrally with the intermediate shaft 109 via a key 115. A shifter 116 is provided so as to be movable in the axial direction. The shifter 116 has a first
A first engagement pin 118 that fits into a first fitting hole 117 formed in the lateral drive gear 111 is provided, and a second engagement pin 118 is provided.
A second engagement pin 120 that fits into a second engagement hole 119 formed in the lateral drive gear 112 is provided, and the first engagement pin 118 and the second engagement pin 120 Are provided on the same axis direction parallel to the axis of.

Therefore, when the shifter 116 is moved in the axial direction and the first engagement pin 118 is fitted in the first fitting hole 117, the first lateral drive gear 111, the shifter 116,
When power is transmitted through the first laterally driven driven gear 113 and the second engagement pin 120 is fitted in the second fitting hole 119, the second laterally driven gear 112, the shifter 116, the second
The power is transmitted through the traverse driven driven gear 114 and the second
Is intermittently rotated, and as described above, power is transmitted from the second output shaft 33 to the transverse feed shaft 95,
The transverse feed shaft 95 is intermittently rotated.

Then, the first transverse drive gear 111 and the first
The rotation ratio between the laterally driven driven gear 113 and the second laterally driven gear 112 is larger than the rotational ratio between the second laterally driven driven gear 114 and two types of seedling trays having different pitches of the pot portion P. In response to T, the lateral feed amount of the seedling tray T can be switched in two stages. In the above configuration, the first engagement pin 118 and the second engagement pin 120 are provided on the same axial direction, and the first engagement hole 117 and the second engagement hole 11 are provided.
9 are arranged on the same axis, the shifter 116 can be switched because the position of the seedling mounting table 77 in the traverse process is easy and the shifter 11 can be easily changed.
This is for enabling the switching of No. 6.

That is, two different pitches of the pot portion P are used.
Regardless of which kind of seedling tray T is used, seedling picking starts when the slider 96 is at the turning start point of the end of the screw of the lateral feed shaft 95 (point at which the moving direction of the seedling mounting table 77 is switched). If the operation and the lateral feed operation of the seedling tray T are not started, the lateral positional relationship between the seedling removal claw 24 and the block soil of the seedling S is shifted. It is necessary to switch the shifter 116 when it is at the turn-back start point.

At this time, if the shifter 116 can be switched at any position, the seedling mounting table 77 may be stopped at an intermediate position in the axial direction of the transverse feed shaft 95, or the seedling mounting table 7 may be switched.
When the shifter 116 is switched to use a different type of seedling tray T, for example, when the shifter 116 is not correctly stopped at the turning start point of the end of the screw of the transverse feed shaft 95, the slider 96 is moved by the transverse feed shaft 95. It is necessary to perform an operation of accurately positioning the screw so as to come to the turning start point of the end of the screw, and this operation is complicated and the seedling mounting table 77 is required.
The shifter 116 can be switched only when is located at the end of the traversing stroke, so that it is as described above.

Therefore, in the above-described structure, when the slider 96 is at the turning start point of the end of the screw of the lateral feed shaft 95, the first fitting hole 117 and the second fitting hole 119 are coaxial. It is lined up in my heart. The gear case 3
A boss 122 is fixed to the upper surface of the rear side of the traverse switching lever 121 on the upper surface of the traverse switching lever 121. The rotating shaft 1 is inserted through an insertion hole 124 formed in the upper part 30 so as to be rotatable around a vertical axis.
A shift pin 125 inserted into the circumferential groove 116 a of the shifter 116 is fixed to the lower end of the rotation shaft 123.

Accordingly, the shifter 116 can be moved in the direction of the axis of the intermediate shaft 109 by rotating the traverse switching lever 121 about the axis of the rotation shaft 123. In addition, a screw hole 126 is formed in the upper part of the gear case 30 and the screw hole 126 is formed.
A first engagement pin 118 is fitted in the first fitting hole 117 at the front-rear intermediate portion of the traverse switching lever 121. 1
20 is fitted in the second fitting hole 119,
A pair of insertion holes 128 corresponding to the screw holes 126 are formed to penetrate therethrough.
7 or the second engaging pin 120 is fitted in the second fitting hole 119, and the knob bolt 127 is screwed into the screw hole 126, so that the lateral feed switching lever 1
21 can be fixed.

An engaging piece 129 is fixed to the boss 122 so as to protrude rearward.
The support shaft 130 is provided on a support member 131 fixed to the gear case 30.
Supported between the two. A coil spring 133 is interposed between the engagement piece 129 and the left and right support pieces 132 in a compressed manner.

As shown by the solid line in FIG. 14, when the urging forces of these left and right coil springs 133 are balanced,
As shown in FIG. 13, the shifter 116 is located between the first traverse drive gear 111 and the second traverse gear drive 112, and the first engagement pin 118 is in the first fitting hole 117 and the second engagement The mating pins 120 are slightly inserted into the second fitting holes 119, respectively.

Therefore, the first engagement pin 118 or the second
The engaging pin 120 is connected to the first fitting hole 117 or the second fitting hole 11.
9, the force for returning the shifter 116 to the intermediate position between the first traverse drive gear 111 and the second traverse gear 112 acts on the shifter 116 by the urging force of the coil spring 133. . When the lateral feed amount is switched, when the knob bolt 127 is removed from the screw hole 126, when the first fitting hole 117 and the second fitting hole 119 are not on the same axis (the circumference of the transverse feed driving gear). When the position is shifted with respect to the direction), the engagement pins 118, 1
20 is a lateral feed drive gear 113, 1 on the side that is not engaged.
14, the first fitting hole 117 and the second fitting hole 1
19 are arranged on the same axis, the shifter 116 is located in the middle between the first traverse drive gear 111 and the second traverse gear 112, and the traverse amount can be switched. I have.

Thus, there is an effect that the shifter 116 can be more easily switched.

[0060]

According to the present invention, by adjusting the relative position of the seedling mounting table with respect to the seedling removal nail, the insertion depth of the seedling removal nail into the block soil in the pot portion is adjusted, and the seedling removal nail is adjusted. After adjusting the insertion depth for the block soil,
In a posture in which the seedling removal nail is inserted into the block soil, the rocking adjustment of the seedling removal nail is performed around the tip thereof, thereby adjusting the insertion angle of the seedling removal nail with respect to the block soil, thereby blocking the seedling removal nail. The relative position with respect to the soil can be easily adjusted.

[Brief description of the drawings]

FIG. 1 is a side view showing a support structure of a gear case.

FIG. 2 is another side view showing the support structure of the gear case.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an overall side view of the transplanter.

FIG. 5 is a plan view of the transplanter.

FIG. 6 is a perspective view of a seedling tray feeding device.

FIG. 7 is a sectional view of the seedling tray feeding device.

FIG. 8 is a side sectional view of the seedling tray feeding device.

FIG. 9 is a side view showing adjustment of a positional relationship of a seedling removal nail with respect to a pot portion.

FIG. 10 is a side view of the seedling feeding device.

FIG. 11 is a plan view of the seedling delivery device.

FIG. 12 is a side cross-sectional view showing a gear transmission structure of a lateral feed amount switching mechanism.

FIG. 13 is a sectional view taken along line YY of FIG. 12;

FIG. 14 is a plan view showing a part of a transverse feed amount switching mechanism.

FIG. 15 is a side sectional view showing a part of a mechanism for switching the amount of lateral feed.

[Explanation of symbols]

 2 Running body 15 Transplant frame 24 Seedling removal nail 77 Seedling table T Seedling tray P Pot part S Seedling

Claims (1)

[Claims] 1. A transplant frame (15) is provided on a traveling body (2), and a seedling tray (T) having a large number of pot portions (P) is placed and supported on the transplant frame (15). The soil block seedling (S) is supported from the pot part (P) by supporting the seedling mounting stand (77) and inserting it into the block soil in the pot part (P) of the seedling tray (T) and then retreating. In the transplanting machine provided with the seedling removal nails (24) which are taken out one by one, the seedling mounting base (77) is supported on the transplantation frame (15) so as to be adjustable in relative position with respect to the seedling removal nail (24), In a posture in which the seedling removal claw (24) is inserted into the block soil, the transplanting frame (15) can adjust the insertion angle of the seedling removal claw (24) by a swinging operation about its tip (24a). Transplanter characterized by being supported by