JPH10127120A - Seedling mounting device for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling mat presser for guidance for improving the vertical feed performance of seedling mats mounted on the respective lines of the seedling mounting base of a rice transplanter provided with the mechanism of reducing the entire width. SOLUTION: For the seedling mounting base of the rice transplanter, the plural lines on both left and right ends are turned to divided seedling mounting bases, the seedling mat presser of the plural lines disposed at the divided seedling mounting bases of the seedling mounting base for folding a machine body center side to the upper part of fixed side seedling mounting bases is pivotally supported so as to be integrally turned and the independently turned seedling mat presser is arranged at the lines at both ends of the fixed side seedling mounting base provided with a folding mechanism. The lower part of the seedling mat presser is vertically movably supported, a fixed body 106 is fixed to the upper center part of the seedling mat presser, the fixed body 106 is provided with a lock button 105, a lock plate 104 fixed to the seedling mounting base is engaged at an appropriate position in a vertical direction and a seedling pressing height at the upper part of the seedling mat presser is made adjustable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter for continuously planting seedlings, for example, comprising a seedling table and planting claws, and having a mechanism for reducing the entire width of the seedling table in the right and left directions. The present invention relates to a seedling mounting device for a rice transplanter.

[0002]

2. Description of the Related Art Conventionally, in a multi-row seedling mounting table, means for reducing the entire left and right width of the seedling mounting table by folding a single-row seedling mounting table at the outermost left and right ends approximately 90 ° in the forward direction is known. It is known.
In addition, the upper and lower two gate-shaped frames that fold the plurality of lines on the left and right ends of the seedling mounting table toward the center of the fuselage are provided, and the seedling mounting table can be folded by the two gate-shaped frames,
A technique for reducing the entire left and right width of the seedling mounting table has been proposed by the present applicant. A seedling mat holder, which is a rod parallel to the mounting surface, is disposed on the seedling mounting table for each row, and the seedling mat is pressed against the seedling mounting table and guided downward. The seedling mat retainer pivotally supports the lower portion, and the upper portion of the seedling mat retainer is pivoted rearward to open the mounting surface of the seedling mounting table and take out the seedling mat left unplanted. .

[0003]

However, the conventional seedling mat holder has a structure in which the seedling mat is opened by turning the upper part backward and the seedling mat is taken out from the side. Was easy to remove from the left and right sides of the seedling table. For this reason, a configuration in which a plurality of seedling mat holders on the end side of the seedling mounting table are integrally rotated to easily take out the seedling mat from the end is desired. Also, the split seedling table on the folding side of a plurality of rows at both ends of the seedling mounting table is configured to be folded inward by a folding mechanism using a frame or the like, and the folding mechanism is disposed on the side of the fixed side seedling mounting table. This section of the strip is less slippery than the other rows of seedling mats.If a seedling mat holder of the same shape as the other strips is placed, the rearward rotation of the seedling mat holder is regulated, and Could not be opened for removal. Also, the seedlings of the seedling mat are different in the density and the growth condition of the seedlings at the time of planting, and accordingly, the placement position of the seedling mat retainer is changed in parallel with the seedling mounting table,
It was necessary to adjust the pressing force so that it could slide smoothly. In addition, the seedling mat press that rotates at the upper part requires a lock mechanism for holding the seedling at a position where the seedling is pressed, but in a configuration in which all the seedling mat presses are turned integrally, the number of lock mechanisms is reduced. It is possible to fold the seedling mounting table, but by dividing it,
A lock mechanism is required for all the divided seedling mat holders, and a lock mechanism that can be operated with one touch has been desired in order to increase work efficiency.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, a plurality of rows at both left and right ends of the seedling mounting table 16 are divided seedling mounting tables 16a, 16a, and the respective sections of the seedling mounting table are folded using the folding mechanism 37 above the fixed side seedling mounting tables 16b, 16c at the center of the body. Each seedling mat holder 63
In the seedling mounting device of the rice transplanter, the plurality of seedling mat holders arranged on the divided seedling mounting table are pivotally supported so as to rotate integrally, and the fixed side seedling mounting table having the folding mechanism is provided. Independently rotating seedling mat holders are arranged on both ends, and seedling mat holders that integrally rotate a plurality of lines in the central part of the fixed seedling mounting table are arranged. The seedling mat holder placed on the strip was divided vertically. In addition, an upper and lower position adjusting mechanism 140 is disposed at each of the left and right ends of the lower seedling frame laterally provided below the seedling mounting table, and the upper and lower position adjusting mechanism 140 is vertically aligned with the mounting surface of the seedling mat. The lower portion of the seedling mat press is moved up and down by turning the screw to adjust the height at which the seedling mat is pressed. Further, a fixed body 106 is fixed at the upper central portion of the seedling mat holder for integrally holding a plurality of seedling mats, and a lock button 105 is provided on the fixed plate.
And the lock button has a tapered engagement portion 1.
05b, the lock button is slidably and loosely fitted to the fixing plate, and the lock button is fixed to the seedling mounting table.
A plurality of engaging recesses 104a are formed in the up and down direction in 04, and the engaging portions of the lock buttons are engaged with appropriate upper and lower positions, so that the height of the seedling holding portion above the seedling mat holding member can be adjusted.

[0005]

Next, an embodiment of the present invention will be described. 1 is an overall side view of a rice transplanter having a seedling table folding mechanism, FIG. 2 is a plan view thereof, FIG. 3 is a view showing a folded state of the seedling table, and FIG. 4 is a rear view of the seedling table. 5 is a plan view of the folding mechanism, FIG. 6 is a side view showing another embodiment of the arrangement of the seedling mat holders arranged on the seedling mounting table, FIG. 7 is a diagram showing the seedling mat holders at the center and both ends, and FIG. FIG. 9 is a side view showing a supporting structure of a lower part of the seedling mat holder, FIG. 10 is a side view showing a fixing structure of an upper part of the seedling mat holder, and FIG. 11 is a partial plan view showing the same fixing structure. 12, FIG. 12 is a perspective view showing a first alternative embodiment of the seedling mat retainer rotating to the side, FIG. 13 is a perspective view showing a second alternative embodiment of the seedling mat retainer, and FIG. FIG. 15 is a plan sectional view showing a third alternative embodiment, and FIG. It is to plan sectional view.

First, a riding rice transplanter will be described with reference to FIGS.
The overall configuration will be described with reference to FIGS. An engine 2 is mounted above a front portion of a body frame 3 of a traveling vehicle 1 on which a worker or the like rides, and a front wheel 6 is supported in front of a transmission case 4 via a front axle case 5. A rear axle case 7 is continuously provided, and the rear wheel 8 is supported by the rear axle case 7. Spare seedling mounts 10 are disposed on both sides of the hood 9 covering the engine 2, and the transmission case 4 and the like are covered with a body cover 12 on which an operator or the like rides through step 11, Driver's seat 1 above 12
3 and the hood 9 in front of the driver's seat 13.
A steering handle 14 is provided at the rear.

The planting section 15 is composed of a seedling mounting table 16 for eight-row planting, a plurality of planting claws 17 and the like. The rotary case 21 is rotatably supported on the planting case 20 via a back and forth slidable, and the rotary case 21 that rotates at a constant speed in one direction is rotatable on the planting case 20. A pair of claw cases 22 are arranged at symmetrical positions, and planting claws 17 are fixedly attached to the tips of the claw cases 22.

Further, a supporting frame 24 is provided at the front of the planting case 20 via a rolling fulcrum shaft 23, and the supporting frame 24 is provided at the rear of the traveling vehicle 1 via a link mechanism 27 including a top link 25 and a lower link 26. And a lifting cylinder 28 for raising and lowering the planting section 15 via the link mechanism 27 is connected to the lower link 26. Then, at the same time as the front wheels 6.6 and the rear wheels 8.8 are driven to move, the seedlings for one plant are taken out from the seedling table 16 which can reciprocate slidably to the left and right by planting claws 17.
It is configured to perform seedling planting work continuously.

In the driving section where the driver's seat 13 and the like are installed, a traveling speed change lever 29, an auxiliary speed change lever 30 for planting up / down and work traveling speed change, a planting sensitivity adjusting lever 31, a main clutch pedal 32, a left and right brake pedal 33 are provided. 33, a leveling center float 34 and a leveling side float 35 are disposed below the planting portion 15, and a side line fertilizing portion 36 for eight lines is disposed behind the driver's seat 13. Have been.

As shown in FIG. 3 and FIG. 6, the seedling mounting table 16 has a seedling mat holder 63 disposed parallel to the mounting surface on the rear surface of the seedling mounting table on which the seedling mat is mounted. ing. Normally, the seedling mat holder 63 is configured to pivotally support the lower part and rotate the upper part of the seedling mat holder 63 rearward to take out the seedling mat from the side. The seedling mat can also be configured to rotate sideways as shown, so that the seedling mat can be taken out from behind. In other words, in the first embodiment, as shown in FIG.
A support arm 131 is pivotally supported on the upper end of each stay 130 so as to be freely rotatable, and the support arm 131 protrudes toward the inside of each strip. A U-shaped seedling mat retainer 63 'is fixed. Therefore, at the time of planting work, the seedling mat holder 6
When holding the seedlings by 3 'and taking out the seedlings, the seedling mat holders 63' and 63 'are rotated to positions above the respective side ribs 38, and the seedling mat is taken out from the rear.

In the second alternative embodiment, as shown in FIG. 13, a stay 13 is provided on a rib 38 on one side of each strip of the seedling mounting table 16.
The support arm 131 ′, which is pivotally supported at the upper ends of the stays 130, 130, substantially matches the width of the seedling table 16. '· 63' is fixed to hold the seedling mat. In the third alternative embodiment, as shown in FIG. 14, a pivot 133 is provided at the left and right mid-portion of the support arm 131 'which is substantially equal to the line width, and the seedling mat is held down to open the seedling mat. When the support arm 63 'is rotated to the side, the support arm 1 is moved as indicated by a two-dot chain line in FIG.
31 ′ The middle part is bent, the length of the support arm 131 ′ rear end and the seedling mat press 63 ′ rear end protruding rearward and upward is reduced so as not to hinder the work of removing the seedling mat from behind. I have.

In a fourth alternative embodiment, as shown in FIG. 15, the support arms 131 project from the left and right ribs 38 to the inside of the strip, and the left and right support arms 13
Two seedling mat holders 63 ', 63' are fixed in the middle of 1 and seedling mat holders 63 ', 63', 63 '
A configuration in which a total of four 63 ′ are arranged can further ensure the pressing of the seedling mat. With this configuration,
Further, by arranging the pivotal support 133 in the middle of the support arm 131, even if each seedling mat retainer 63 'is rotated to the side, it is formed in a "-" shape as shown by the two-dot chain line in the figure. It can be bent and fixed, and can be configured so as not to hinder the work of removing the seedling mat from behind.

As shown in FIGS. 3 to 8, the seedling mounting table 16 is divided into two seedling mounting tables at the left and right outermost ends to form divided seedling mounting tables 16a. In the center of the aircraft, the two-row seedling platform is referred to as a central seedling platform 16b, and the one-row seedling platforms located on both sides thereof are referred to as side seedling platforms 16c and 16c. A parallel folding mechanism 37 is provided above 16c, and the divided seedling platforms 16a and 16a and the side seedling platforms 16c and 16c are connected via the parallel folding mechanism 37, and are substantially parallel above the central seedling platform 16b. Divided seedling mounting table 1
6a and 16a are configured to be foldable.

The divided seedling mounting tables 16a, 16a
The seedling mat holding rods 64, 64 arranged on the strips are connected as shown in FIG. 6 to constitute a seedling mat holding body 63 that rotates backward and integrally with the seedling mat holding rods 64. Similarly, the fixed seedling mounting bases 16b, 16b, 1
Seedling mat holding rod 64 to be placed in 4 sections of 6c and 16c
64 are connected to the two right-hand and two left-hand members, and have two sets of seedling mat presses 63, 63 that are integrally rotated, and have another arrangement configuration of the seedling mat presses 63. Therefore, when taking out the seedling mats, the seedling mats can be opened every two lines, and the workability can be improved.
The seedling mat retainers 63, 63, 63, 63 can be shared, and the versatile seedling mat retainer 63 can be configured.

When the work is normally performed while the seedling mounting table 16 is widened widely, a lock shaft 121 slidably provided in the lower rail 18 and the guide rail 19 provided on the back of the divided seedling mounting table 16a. The tip of the side seedling mounting table 1
6c is locked by being fitted into and fixed to a lock plate 122 provided in 6c. Further, fixing pins 124 protruding from the upper outer surface of the side seedling mounting table 16c are fitted to fixing holes 123 formed in the upper inner surface of the divided seedling mounting table 16a to enhance stability. Further, each of the rails 18 laid laterally on the seedling mounting table 16 is provided.
The 19 and the vertical frame 84 provided on the back surface of each of the ribs 38 of the seedling mounting table 16 are connected to each other to form a highly rigid frame structure.

Conversely, when folding the divided seedling mounting table 16a, the lock lever 120 is rotated (120 ') to remove the lock shaft 121 from the lock plate 122, and the divided seedling mounting table 16a is rotated. Make it movable and fold it. The divided seedling mounting table 16a is improved in rigidity by a vertical frame 84. In addition, the ends of the rails 18, 19, the vertical frame 84, and the seedling stand frames 39, 40, 41, 42 horizontally mounted on the front side are attached and fixed, respectively, to improve the strength of the folding structure.

Next, the folding mechanism 37 will be described with reference to FIG.
This will be described with reference to FIG. On the upper and lower parts of the central seedling platform 16b, a gate-shaped central upper seedling platform frame 39 and a central lower seedling platform frame 40 are provided on ribs 38 on both sides of the central seedling platform 16b. Holder 53.5
3 and the lower frame holder 54. From the center of the central upper seedling stand frame 39 and the central lower seedling stand frame 40, central frames 39a and 40a
Protrudes, and its tip is the rib 3 at the center of the seedling mounting table 16b at the center.
8 are connected via an upper frame holder 53 and a lower frame holder 54, respectively. The central frame 39
a A pipe-shaped member protrudes downward from a substantially central portion and is connected to a portion corresponding to the central upper seedling stand frame 39 to form a vertical frame 43.

Similarly, on the upper and lower parts of the divided seedling mounting table 16a, a gate-shaped divided part upper seedling base frame 41 and a divided part lower seedling frame 42 are provided with ribs 38 on both sides of the divided seedling mounting table 16a.
And 38 are erected on the top 38 via upper frame holders 53 and lower frame holders 54 and 54, respectively. The divided part upper seedling stand frame 41 and the divided part lower seedling stand frame 4
The center frames 41a and 42a protrude from the center of 2, and the ends thereof are connected to the center rib 38 of the divided seedling mounting table 16a via the upper frame holder 53 and the lower frame holder 54, respectively. The pipe-shaped members protrude downward from a total of two locations, approximately the central portion of the central frame 41a and the central portion of the distal end portion from the bent portion on the outer side of the divided upper seedling frame 41, and each of the divided portions of the divided lower seedling frame 42 A vertical frame 43 is formed by being connected to a portion corresponding to the upper seedling stand frame 41.

The seedling table 16b on the main body side and the divided seedling table 16
a, the upper and lower seedling frames 3 at the center of the center seedling mounting table 16b.
At the bent portions on both sides in the left-right direction of the 9.40, the center-side rotating fulcrum frames 44, which are pipe-shaped members, are fixed so as to connect the upper and lower bent portions. Similarly, the divided part upper and lower seedling stand frames 41 and 42 of the divided seedling placing stands 16a and 16a
Of the pipe-shaped member so as to connect the upper and lower bent portions at the bent portion on the inner side in the left-right direction.
・ 45 are fixed. The side seedling mounting table 16c
There is a reinforcement joint 101 that becomes a reinforcement member in the left and right direction.
101 is provided. One end of the reinforcing joint 101 is pivotally supported on the upper portion of the pivot support frame 44, and the other end (outer end) of the reinforcing joint 101 is bent toward the rib 38, and is fixed to the upper surface of the rib 38. 16c is improved to prevent torsion and the like.

Upper and lower rotating cam bodies 46 and 47, which are cam members, are provided on the upper and lower portions of the center-side rotating fulcrum frame 44, respectively. The body 48 and the lower rotary cam body 49 are fitted. The upper rotary cam bodies 46 and 48 are connected to each other by a gate-shaped upper folding arm 50, and the lower rotary cam bodies 47 and 49
Are connected by a lower folding arm 51 having a gate shape, so that the center-side pivoting fulcrum frame 44 and the split-side pivoting fulcrum frame 45 are connected.
0.5 is rotated about the center-side rotation fulcrum frame 44 as a fulcrum, so that the divided seedling mounting table 16a can be folded and positioned substantially parallel above the main body-side seedling mounting table 16b.

In FIGS. 3, 7, and 8, the central seedling mounting table 16b and the divided seedling mounting table 16a are provided as a set for each two rows, and as a seedling mat press between the left and right ribs 38, 38. A long seedling mat holder 63 provided with two long seedling holder rods 64 is provided. Further, as shown in FIG. 10, in the side seedling mounting table 16c located between the central seedling mounting table 16b and the divided seedling mounting table 16a, a pre-seedling mat holder 113 in which two pre-seedling holding rods 102 are disposed, and There is a seedling mat holder divided into upper and lower portions of a short seedling holder 114 on which the short seed holder 103 is disposed. Therefore, the long seedling mat holders 63 at the right and left ends of the eight-row planting seedling mounting table 16 are integrally rotated to open both seedling mats on the divided seedling mounting tables 16a. The seedling mats on the side seedling mounting tables 16b and 16c are easily taken out.

As shown in FIG. 9, the long seedling mat holder 63 is provided with a lower seedling stand frame 4 which is laid laterally below the ribs 38 at both ends of the central part and the divided seedling stands 16b and 16a.
2 (or 40) on both the left and right sides
0 and 140 are fixed, and the vertical position adjusting mechanism 140 adjusts the vertical position of the long seedling mat holder 63. That is, by the vertical position adjustment mechanism 140, the base rod 64b of the long seedling mat holder 63 is disposed so as to be movable up and down, and a rotation fulcrum 64a is fixedly provided at the end of the base rod 64b. A long seedling holding rod 64 is pivotally supported on the rotation fulcrum 64a.

As shown in FIG. 9, the lower position adjusting mechanism 140 fixes the closed surface of the fixed member 141 having a U-shape in side view to the lower seedling frame 42 (or 40).
The side surface 41 is disposed vertically above and below the mounting surface of the seedling mounting table 16, and an adjusting screw 142 having an axis in the vertical direction is supported on the upper and lower side surfaces of the fixed body 141. Adjustment screw 1
42 protrudes upward from the side surface of the fixed body 141, and the upper end of the pin 14 extends vertically with respect to the axial direction of the screw 142.
3 is formed horizontally to form a screw head. The adjustment knob 144 is pivotally supported using the pin 143 on the screw head. The adjustment knob 144 is plate-shaped, and has loose fitting cylinders 144a, 144a formed on the base side thereof.
The head of the adjusting screw 142 is straddled by 4a, and both ends of the pin 143 are pivotally supported.

On the other hand, an end of a proximal rod 64b that supports the lower part of the long seedling mat holder 63 is screwed with a screwing cylinder 6b.
4c is fixed. Then, the proximal rod 64b
Is disposed in the vicinity of the vertical position adjusting mechanism 140, and the screwing cylinder 64c is attached to the adjusting screw 14 in the open surface of the fixed body 141.
It is screwed into 2.

Therefore, the adjusting knob 144 is turned upright so that the adjusting screw 142 can be easily turned, and the adjusting knob 144 is turned so that the screwing cylinder 64c screwed to the adjusting screw 142 is moved up and down. To adjust the height by moving the lower part of the long seedling holding rods 64 up and down via the proximal rod 64b. When the adjustment of the vertical position of the long seedling mat holder 63 is completed and the seedling mat is supplied and planting is started, the adjustment knob 1 is used.
Numeral 44 rotates horizontally as indicated by a two-dot chain line 144 'in the figure, so that the seedlings of the seedling mat which is fed vertically do not get caught on the seedlings.

As shown in FIG. 7, the left and right long seedling mat holding rods 64, 64 of the long seedling mat holding 63 are provided.
A connecting body 65 is horizontally provided horizontally at the upper end of 64, 64, and a fixing plate 106 for fixing the upper part of the long seedling mat holder 63 is fixedly provided at the center of the left and right of the connecting body 65. A lock button 105 is provided on the fixing plate 106,
The fixing plate 106 is rotated to the central portion or the side of the lock plate 104 fixed to the upper seedling frame 41 on the split side, and the fixing plate 106 and the lock plate 104 are
Are fixed, and the long seedling mat holder 63 is fixed at a position where the seedling mat is held down.

Lock button 1 provided on fixed plate 106
Reference numeral 05 denotes a button 105 which slides in the left-right direction with respect to the fixing plate 106. As shown in FIGS. 10 and 11, a substantially triangular pyramid-shaped engaging portion 105a is formed at one end, and is pushed into the other end. A part 105b is formed, and the pushing part 105b and the engaging part 1 are formed.
05a is connected with a sliding shaft 105c. The ridge line of the triangular pyramid of the engaging portion 105a is tapered so as to engage with an engaging concave portion 104a described later. Further, a receiving plate 111 is fitted on the outer peripheral surface of the pushing portion 105b, and a spring 112 is wound around the outer peripheral surface of the sliding shaft 105c between the receiving plate 111 and the side surface of the fixed plate 106. 105a is urged toward the fixing plate 106 side.

The seedling table 1 is mounted on the lock plate 104.
6 engaging recess 104 opened upward with respect to the mounting surface
a, 104a and 104a. The engagement recesses 104a are circular in side view, and several are formed in the vertical direction, and each of the engagement recesses 104a, 104a, 104a is formed.
Between them, a groove for passing the sliding shaft 105c of the lock button 105 is formed.

Therefore, the fixing plate 106 is
4, the lock button 105 pushes the engagement portion 105 a into the engagement recess 104 a in accordance with the biasing force of the spring 112, and the fixing plate 106 is fixed to the lock plate 1.
04 and locked. When changing the height at which the seedlings are pressed by the long seedling mat holder 63, the lock button 105 is pushed in against the urging force of the spring 112, and the engaging portion 105a and the engaging recess 104 are pressed.
a, the sliding shaft 1 is disengaged from the engaging recess 104a.
Guide 05c. The sliding shaft 105c can move up and down in the engagement recesses 104a, 104a, 104a, and stops pushing the lock button 105 at an arbitrary engagement recess 104a. The engagement part 10 of the lock button 105
By engaging 5a, the fixing position of the fixing plate 106 with respect to the lock plate 104 can be changed, and the long seedling mat press 63 can be fixed at a position where the height of pressing the seedling mat is optimal. Also, the locking of the fixing plate 106 and the locking plate 104 can be released only by pressing the lock button 105 to rotate the long seedling mat holder 63 rearward and upward to open the seedling mat.

[0030]

As described above, the present invention has the following advantages. That is, as described in claim 1, the long seedling mat holders arranged on the left and right sides of the seedling mounting table are integrally rotated to take out the seedling mat from the left and right sides of the seedling mounting table. Can be easily performed, and subsequently, the work of taking out the seedling mat placed on the seedling mounting table on the center side can be facilitated, and the work efficiency can be improved. Furthermore, a versatile seedling mat holder can be constructed and manufactured by using the same number of the seedling mat holders arranged on the left and right split seedling platforms and the plurality of rows arranged on the central seedling platform. The cost can be reduced, and the assembling work can be simplified.

Further, as described in claim 2, folding mechanisms are arranged on both left and right sides of the fixed seedling mounting table, and it is difficult to arrange the long seedling mat holder. By arranging the mat holder, it is easy to assemble, and in taking out the seedling mat,
By rotating the upper and lower seedling mat holders, they can be rotated without interfering with the folding mechanism, and the seedling mat can be smoothly taken out.

Further, as described in claim 3, the height of pressing the seedling mat below the seedling mat holding member can be adjusted by using the up-and-down adjusting mechanism, so that the density of the seedlings in the seedling mat and the seedling density can be reduced. The vertical position of the seedling mat holder with respect to the seedling mat mounting surface can be adjusted according to the growing condition,
The force for pressing the seedling mat can be adjusted, and the seedling mat can be smoothly slid to improve the longitudinal feeding performance.

Further, since the vertical position adjusting mechanism is adjusted by turning the screw as described in the fourth aspect, the structure can be simplified, the cost is advantageous, and the adjustment by the operator is possible. Easy going. In addition, the upper and lower height of the lower part of the seedling mat retainer can be adjusted steplessly by turning the adjustment screw based on the placement surface of the seedling mat, so the optimal pressing force according to the condition of the seedling mat is The seedling mat can be guided so as not to affect the transport of the vertical feed.

According to a fifth aspect of the present invention, a plurality of seedling mat holders can be fixed in one place, and can be easily fixed by a one-touch operation with a button. The presser can be rotated rearward and upward, and the work efficiency can be improved.

According to a sixth aspect of the present invention, the lock position of the upper part of the seedling mat holding part is secured by engaging the lock button with an arbitrary position of the engagement concave part formed on the lock plate formed on the seedling mounting side. It can be changed up and down on the basis of the seedling table mounting surface, the spacing between the seedling table mounting surface and the seedling mat holder can be adjusted in several steps, and the seedlings planted on the seedling mat Can be adjusted according to the growing condition of the seedling and the type of seedling, and the seedling mat can be pressed down and guided downward to such an extent that it does not cause resistance to the longitudinal feeding of the seedling mat.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter having a seedling table folding mechanism.

FIG. 2 is a plan view of the same.

FIG. 3 is a view showing a folded state of the seedling mounting table of the present invention.

FIG. 4 is a rear view of the seedling mounting table.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view showing another embodiment of the arrangement of the seedling mat retainers arranged on the seedling mounting table.

FIG. 7 is a diagram showing a center and a divided part seedling mat holding member.

FIG. 8 is a view showing a side seedling mat holder.

FIG. 9 is a side view showing a support structure of a lower part of the seedling mat holder.

FIG. 10 is a side view showing a fixed configuration of an upper portion of the seedling mat retainer.

FIG. 11 is a partial plan view showing the same fixed configuration.

FIG. 12 is a perspective view showing a first alternative embodiment of the seedling mat retainer rotating to the side.

FIG. 13 is a perspective view showing a second alternative embodiment of the seedling mat retainer.

FIG. 14 is a plan sectional view showing a third alternative embodiment of the seedling mat retainer.

FIG. 15 is a plan sectional view showing a fourth alternative embodiment of the seedling mat retainer.

[Explanation of symbols]

 Reference Signs List 16 seedling mounting table 16a divided seedling mounting table 16b central seedling mounting table 16c side seedling mounting table 37 folding mechanism 63 long seedling mat holding 64 long seedling mat holding rod 64a base rod 104 lock plate 104a engagement recess 105 lock button 105 Joint part 113 Pre-seedling mat holder 114 Short seedling mat holder 140 Vertical position adjustment mechanism 141 Fixed body 142 Adjustment screw 144 Adjustment knob

Claims (6)

[Claims] 1. A seedling mat holding section for each row of a seedling table which is folded above a fixed-side seedling table at a center side of an airframe by using a folding mechanism, wherein a plurality of rows on both right and left ends of the seedling table are divided. In the seedling mounting device of a rice transplanter, the plurality of seedling mat holders arranged on the divided seedling mounting table are pivotally supported so as to rotate integrally,
Independently rotating seedling mat holders are disposed on the strips at both ends of the fixed seedling mounting table having the folding mechanism, and the seedling mat holders that integrally rotate the plurality of strips at the central portion of the fixed seedling mounting table are arranged. A seedling mounting device for a rice transplanter, wherein the seedling mounting device is arranged. 2. A seedling placement device for a rice transplanter, wherein a seedling mat retainer disposed on both ends of a fixed-side seedling placement stage having the folding mechanism according to claim 1 is vertically divided. 3. A lower seedling stand frame is laterally provided below the seedling mounting table, and a vertical position adjusting mechanism is provided at both left and right ends of the lower seedling stand frame. A seedling mounting device for a rice transplanter, wherein ends are connected to each other and a seedling mat holder is supported on a mounting surface of a seedling mounting table so as to be movable in a vertical direction. 4. A vertical position adjusting mechanism according to claim 3, wherein an adjusting screw is supported in a vertical direction with respect to a mounting surface of the seedling mat, and a base rod for holding the seedling mat is vertically movably screwed to the adjusting screw. A seedling mounting device for a rice transplanter, wherein the height at which the seedling mat is pressed can be adjusted by rotating the adjusting screw. 5. A fixed body is fixed to an upper central portion of a seedling mat holder for integrally holding a plurality of seedling mats, a lock button is provided on the fixed plate, and the fixed member is engaged with a rear surface of the seedling mounting table. A seedling mounting device for a rice transplanter, wherein the seedling mounting device is characterized by being fixed by fixing. 6. A lock button provided on a fixing plate according to claim 5, wherein an engaging portion having a taper is formed, said lock button is slidably and loosely fitted on said fixing plate, and said lock button is used as a seedling. A plurality of engaging recesses are formed vertically on the lock plate fixed to the mounting table, and the engaging portions of the lock button are engaged with appropriate upper and lower positions to adjust the height of the seedling holding at the top of the seedling mat holding A seedling mounting device for a rice transplanter, characterized in that it is made possible.