JPH0965735A - Structure of seedling holding table of riding rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform smooth and sure seedling planting work without replenishing a seedling mat. SOLUTION: A core roll having an axis directed in lateral direction is rotatably placed with a stay on a seedling holding table and a continuous seedling mat is wound on the outer circumference of the core roll to enable the delivery of the seedling mat from the core roll to the seedling holding table. A plurality of flotation preventing members to prevent the flotation of the seedling mat are placed under the seedling holding table interposing gaps in lateral direction. The flotation preventing members are placed at the right and left side edges interposing at least a gap having a width equal to the plural equal division of the width of the seedling mat of each row. The vertical distance along the upper face of the seedling holding table is made to be nearly equal to the lateral width of the seedling mat of each row.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling platform structure for a riding rice transplanter.

[0002]

2. Description of the Related Art Conventionally, as one form of a riding rice transplanter, there is one in which a planting portion is connected to a rear portion of a traveling portion through an elevating link mechanism.

In the planting section, the seedling table placed in a tilted posture of front high and low and a seedling mat placed on the seedling table are cut from the bottom of each seedling for each seedling, and the field is cut. A seedling picking claw for planting a seedling and a mission case for planting the seedling picking claw are provided.

[0004] Further, by mounting a spare seedling mounting table on the traveling portion and placing a spare seedling mat on the spare seedling mounting table, the seedling mat on the seedling mounting table can be maintained during the planting work. When it gets low, we try to supplement the seedling mats at any time.

[0005]

However, in the above-mentioned riding rice transplanter, when the seedling mat on the seedling mounting table becomes small, the spare seedling mat needs to be replenished. The operation was to take out the spare seedling mat placed on the spare seedling mounting table attached to the running section and place it on the seedling mounting table in the planting section, which was troublesome and complicated.

[0006]

Therefore, in the present invention, a core roll having an axis lined in the left-right width direction is rotatably disposed on the upper part of the seedling table via a stay, and an outer peripheral surface of the concentric roll is arranged. A strip-shaped seedling mat is wound around the seedling mat so that the seedling mat can be fed out from the core roll onto the seedling mounting table, and a floating prevention body for preventing floating of the seedling mat under the seedling mounting table is provided in the left-right width direction. In addition to arranging a plurality of them at intervals, the floating prevention members are arranged on the left and right sides with a space at least equally dividing the left and right widths of the seedling mats of each row, and the upper surface of the seedling mounting table. The present invention provides a seedling platform structure for a riding rice transplanter characterized in that the upper and lower widths along the width are formed to be substantially the same as the left and right widths of the seedling mats of each row.

Further, according to the present invention, the floating prevention members are also provided on the upper part of the seedling mounting table at intervals in the left-right width direction, and the floating prevention members are vertically arranged along the upper surface of the seedling mounting table. It is also characterized in that it is formed by being extended in the direction, and that the lift preventing body is formed in a disk shape and is rotatably attached to a rotation support shaft whose axis line is oriented in the left-right width direction.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a riding rice transplanter A having a seedling mount structure according to the present invention.
Is composed of a traveling unit 1 and a planting unit 2 connected to the rear of the traveling unit 1.

The traveling unit 1 is provided with a belt type continuously variable transmission 7 which is linked to the engine 4 via a belt type transmission mechanism 5 and a drive shaft 6 behind the engine 4 mounted on the vehicle body frame 3. Then, behind the belt type continuously variable transmission 7, the transmission case 8 and the rear axle case 9 are consecutively arranged in the above-mentioned order, and these are interlockingly connected to each other.
A rear wheel 10 is pivotally supported on the left and right ends of the.

A front axle case 12 is interlockingly connected via a front wheel drive shaft 11 extending forward from the lower portion of the mission case 8, and front wheels 13 are axially supported on the left and right sides of the front axle case 12, respectively. At the same time, the steering wheel 15 provided upright on the rear side of the engine cover 14 that covers the engine 4 steers the front wheels 13 to steer the traveling unit 1.

The belt type transmission mechanism 5 and the mission case 8 are covered by a vehicle body cover 16, and a seat 17 is provided on the vehicle body cover 16. 18 is a clutch pedal,
19 is a fertilizer applicator.

As shown in FIG. 1, the planting section 2 has a planting case 31 of a planting case 31 with a front high and a low low for forward tilting 6-row planting via a lower rail 29 and a guide rail 30. In the upper part, it is supported so as to be reciprocally moved to the left and right, and a rotary case 32 is continuously provided to the planting case 31, and a pair of claw cases 34 each having a planting claw 33 are rotatably attached to the rotary case 32. The hitch bracket 36 is pivotally attached to the front end of the planted case 31 via a rolling fulcrum shaft 35 so that the hitch bracket 36 can be tilted left and right, and the hitch bracket 36 is a lifting link including a top link 37, a lower link 38, and a lifting hydraulic cylinder 39. Mechanism 40
It is connected to the rear end portion of the traveling unit 1 via the so as to be able to move up and down.

Then, the planting part drive shaft extending from the rear side of the mission case 8 is interlockingly connected to the planting case 31,
The seedling mounting table 28 is reciprocated right and left, the seedlings are vertically transported, and the rotary case 32 and the nail case 34 are driven.
25 is a center float and 26 is a side float.

In the above structure, the gist of the present invention lies in the structure of the seedling table 28, which will be described below with reference to FIGS.

That is, as shown in FIGS. 2 and 3, the seedling placing table 28 has a rectangular plate-shaped seedling placing table body 40 attached to a lower rail 29 and a guide rail 30 in an inclined posture of high front and rear low, Left and right vertical ribs extending in the vertical direction on the left and right side edges of the seedling mounting base body 40
In addition to forming 41, 41, vertical ribs 42 for dividing five rows extending vertically in the middle of the upper surface are formed at intervals in the left-right width direction. The mat 43 can be divided and placed.

The vertical ribs 41, 41, 42, 42 of the seedling mounting table 28 are provided with a stay 45 for the roll-shaped seedling mat 44 supported by the seedling mat support 62 as shown in FIGS. Mounted on the seedling stand body 40, and a pair of upper and lower vertical transfer devices 4
Six sets of 6,47 are provided for each row, and six sets of lifting prevention units 48, 49 for preventing the seedling mat 43 from floating are provided above and below the seedling mounting table body 40. are doing.

The stay 45 is, as shown in FIGS. 2 to 4, a vertical frame extending upward along the upper surface of each vertical rib 41, 42.
50,51 and a spindle that is laid horizontally between the upper ends of the vertical frames 50,51
52 and a column 53 that supports the upper portion of each vertical frame 50, 51.

As shown in FIGS. 2 to 4, the seedling mat support 66 includes a pair of left and right support arms 54, 54 having a central portion pivotally supported on the support shaft 52 so as to be vertically rotatable, and both support arms 54. Connecting rods 55 and 56, which are laid horizontally between the upper ends of the
It is formed from the connecting body 63 connected to the middle of the connecting rod 55, the core roll locking hooks 54a and 54a are formed at the lower ends of the support arms 54 and 54, and the tip of the connecting body 63 is formed. Is formed with a connecting hook 56a, while the auxiliary seedling table body 57 is formed by extending the seedling table body 40 upward from the upper edge of the seedling table body 40.
A connecting piece 58 is attached to the upper end of the connecting piece 58, and the connecting hook 63a can be detachably locked in a connecting hole 59 formed in the connecting piece 58.

As shown in FIGS. 2 to 4, a core roll 60 whose axis is oriented in the lateral width direction is attached to the core roll locking hooks 54a, 54a of the pair of left and right support arms 54, 54, respectively. Rotatable via the left and right side ends of the roll support shaft 61 protruding from the end,
Moreover, it is detachably locked in a recumbent shape.

Then, as shown in FIG. 4, a strip-shaped seedling mat 43 is wound around the outer peripheral surface of the core roll 60 to form a roll-shaped seedling mat 44.

Here, the seedling mat 43 is a non-woven paper which is soluble in fertilizer, and is seeded by hydroponic cultivation, and a band-shaped mat is formed by root entrainment.

Therefore, since the seedling mat 43 does not have soil adhered thereto, the seedling mat 43 can be formed into a thin and lightweight belt-like mat, which is formed by winding it around the outer peripheral surface of the core roll 60. With one roll-shaped seedling mat 44, the seedling mat 43 can be continuously fed out without performing supplementary seedling mats, and seedling planting work can be performed efficiently.

Further, as shown in FIG. 2, the support arms 54, 54 for supporting the rolled seedling mat 44 are formed by the rolled seedling mat.
The position is freely changeable between a feeding position in which 44 is brought into contact with a vertical conveyance belt 76 of an upper vertical conveyance device 46 described later, and a storage position separated from the vertical conveyance belt 76. The hooks 63a can be held by connecting the hooks 63a to the connecting holes 59, and as shown in FIG. 4, the roll seedling mat 44 can be easily replaced at the storage position.

As shown in FIGS. 5 and 6, a pair of upper and lower vertical transfer devices 46, 47 are arranged in the seedling table main body 40 at intervals in the left-right width direction for each row. , The upper drive shaft extending in the left-right width direction at the upper and lower parts of the seedling stand body 40
70 and the lower drive shaft 71 are placed in parallel with each other, and each drive shaft 70,7
Three tubular shafts 72, 72, 72, 73, 73, 73 are slidably fitted to 1 and the driven shafts 74, 75 are placed horizontally above the tubular shafts 72, 73 in parallel. Opposed cylindrical shafts 72,73 and driven shafts 74,7
The vertical conveyor belts 76 and 77 are wound between the belts 5 and 5.

As shown in FIG. 5, the middle portion of the lower drive shaft 71 is interlockingly connected to the planted case 31 via a one-way clutch transmission mechanism 78 to intermittently move the lower drive shaft 71 in one direction. It can be driven to rotate only.

In addition, as shown in FIGS. 5 and 6, a pair of left and right transmission cases 79 and 80 are provided between the left and right ends of the upper drive shaft 70 and the lower drive shaft 71 to form the lower drive shaft 71. The rotation drive force can be intermittently transmitted to the upper drive shaft 70 via both transmission cases 79, 80. Each transmission case 79, 80 is attached to the left and right side ends of the upper and lower drive shafts 70, 71, respectively. The transmission chains 79c, 80c are wound between the sprockets 79a, 79b, 80a, 80b, and the tension of each transmission chain 79c, 80c can be adjusted by the chain tensioners 79d, 80d. It is formed by covering with the casings 79e, 80e and the inner casings 79f, 80f.

Here, the left and right outer casings 79e, 80e
The inner casings 79f and 80f on the left and right sides are formed in the same shape so that they can be commonly used, so that processing and assembling work can be performed easily. Moreover,
The inner casings 79f and 80f are designed to be shared by setting a minimum step thickness to ensure rigidity. 79g is a connecting bolt and 79h is a connecting nut.

Further, as shown in FIG. 5, the upper and lower drive shafts 70 and 71 are provided with upper and lower first clutch portions 81 and 82 and upper and lower second clutch portions 83 and 84 at the left and right ends, respectively. The upper and lower first clutch portions 81 and 82 are provided with fixed side clutch forming bodies 81a and 82a attached to the left side portions of the upper and lower drive shafts 70 and 71, and tubular shafts 72, 72, 73 and 73, respectively. The upper and lower second clutch portions 83 and 84 are attached to the right side end portions of the upper and lower drive shafts 70 and 71, respectively, while the movable side clutch forming bodies 81b, 81c, 82b and 82c are attached to the end portions of the upper and lower drive shafts 70 and 71, respectively. Fixed side clutch formation
83a, 84a and the movable side clutch forming bodies 83b, 84b attached to the right end portions of the tubular shafts 72, 73, and each fixed side clutch forming body 81a, 82a, 83a, 84a is attached to each movable clutch forming body. Formation
By engaging / disengaging 81b, 81e, 82b, 82c, 83b, 84b, interlocking connection / disconnection with each drive shaft 70, 71 can be performed.

Then, on the lower surface side of the upper part of the mounting table body 40,
As shown in FIG. 1 and FIG. 5, the left double-sided clutch lever
85, an intermediate two-way clutch lever 86, and a right two-way clutch lever 87 are respectively arranged, and the left-side two-way clutch lever 85 is provided with the left side movable clutch forming members 81b, 82b of the upper and lower first clutch parts 81, 82. Interlocking connection is made via the operation wires 87, 87, and the upper and lower side first clutch lever 86
Movable clutch formations 81c, 82 on the right side of the clutch parts 81, 82
c is interlockingly connected via the operation wires 88, 88, and the upper and lower second clutch portions 83, 84 are connected to the right double-sided clutch lever 87.
The movable side clutch forming bodies 83b and 84b are interlockingly connected via the operation wires 89 and 89. 90 and 91 are lever guide bodies, and 90a, 90b and 91a are lever guide grooves.

In this way, the left-side two-way clutch lever 85 enables connection / disconnection of the left-side two-side vertical transfer operation of the upper and lower vertical transfer devices 46, 47, and the intermediate two-way clutch lever 86. The vertical transport operation for the middle two rows can be connected / disconnected, and the vertical transport operation for the right two rows can be connected / disconnected.

In this embodiment, the upper and lower first and second clutch portions 8 of the upper and lower vertical conveying devices 46 and 47 for six rows are used.
Although the structure provided with 1,82,83,84 has been described, in the case of four-row, the upper and lower second clutch portions 83,84 may be symmetrically arranged at the left and right side end portions. The use is the same as for the six-row type, and for the eight-way type, a one-way clutch transmission mechanism 78 is interlockingly connected to the central portion of the lower drive shaft 71, and the first and second clutches on the upper and lower sides centering on the one-way clutch transmission mechanism 78. The parts 81, 82, 83, 84 can be arranged in symmetrical positions.

As shown in FIG. 2 and FIG. 3, the floating prevention members 48, 49 are formed in a disk shape and are attached to the lower ends of the left and right vertical ribs 41, 41 of the seedling mounting table body 40. It is attached to the anti-rotation body advancing / retreating position adjusting section 96 via a support body 91. 90 is a seedling mat receiver.

As shown in FIG. 2 and FIG. 3, the lifting prevention body advancing / retreating position adjusting section 96 has a pair of left and right support pins 96a, 96a provided upright at the lower ends of the left and right vertical ribs 41, 41, respectively. Slide the slides 96b and 96b to the support pins 96a and 96a and operate the levers 96c and 96c.
The slide shafts 96b and 96b are rotatably mounted horizontally between the slides 96b and 96b.
The support 91 is attached to the structure.

The support 91 is, as shown in FIGS. 2 and 3,
Four support rods 93, 93, 93, 93 per line from the support shaft 92,
The seedling mat 43 is spaced at an interval that divides the lateral width of the seedling mat 43 into approximately five parts, is approximately parallel to the upper surface of the seedling placing table body 40, and is extended upward to a substantially central position of the seedling placing table body 40 to support each support. The upper and lower parts of the rod 93 should have the center of
It is configured to be rotatably attached via pivots 94 and 95 whose axes are oriented in the left-right width direction.
The floating prevention body 49 on the lower side is arranged directly above the lower vertical conveyance device 47, while the outer diameters of the floating prevention bodies 48, 49 are arranged close to the rolled seedling mat 44. The width is approximately the same as the lateral width of the row seedling mat 43.

In this way, the floating prevention member 48 on the upper side is
While pressing the feeding base of the roll-shaped seedling mat 44 by, by pressing the lower part of the floating prevention body 49 of the lower vertical transfer device 47 vertical transfer belt 77 of the lower part of the vertically transferred seedling mat 43, seedlings as a whole. The mat 43 is surely prevented from rising and does not hinder the seedling mat 43 which is smoothly conveyed vertically.

At this time, the upper and lower floating prevention members 48, 49 are
The seedling mat 43, which is formed into a circular solid shape and is conveyed vertically, comes into contact with the lower end edge and rotates in conjunction with the downward sliding of the seedling mat 43. There is no hindrance to the downward sliding for each amount, and the seedling picking amount of the seedling mat 43 by the seedling picking nail 33 can be secured in a good condition.

Moreover, the lifting prevention body advancing / retreating position adjusting section 96
Adjust the slide body 96b, 96b up and down through the operating levers 96c, 96c to move the up and down floating prevention bodies 48, 49 to the seedling stand body 40 side via the support body 41. By adjusting, the floating prevention function for the seedling mat 43 can be maintained in an optimum state.

Further, the upper and lower floating preventive members 48, 49 are
It is rotatable up and down around the support shaft 92 via the support 41,
The seedling mat floating prevention non-operating position can be freely changed between the seedling mat floating prevention working position close to the seedling mounting base body 40 and the seedling mat floating prevention non-operating position separated from the seedling mounting base body 40. By changing the posture to
The seedling mat 43 can be easily placed on the 40.

FIG. 8 shows a seedling mat floating prevention structure according to a second embodiment, in which a support plate 97 is horizontally mounted between the lower ends of the left and right vertical ribs 41, 41 via stays 98, 98. , The support plate
4 seedling-skipping bodies 99,99,99,99 in 97
At the position directly below 9,49,49, they are attached at intervals in the left-right width direction, and each seedling leaf wall 99 is formed by bending a rod-shaped body forward in a V shape.

In this way, just before the lower end of the seedling mat 43 is cut by the seedling removing claws 33, the seedlings are cut by the seedling leaf slide body 99 to surely cut the seedlings, We are trying to ensure that an appropriate amount can be secured.

FIG. 9 shows a seedling mat floating prevention structure as a third embodiment, in which four rod-shaped floating prevention members 100 are attached to the support shaft 92 supporting the lifting prevention member 49. Base end,
Attach the lifting preventive bodies 49, 49, 49, 49 close to the base end of the supporting rod 93 that supports them respectively, and extend the tip toward the seedling mounting table body 40 side. The upper part of the vertical conveyor belt 77 of the lower carrier 47 is located above the midway part of the lower carrier 47 by extending the seed carrier table main body 40 upward from its vicinity.

In this way, the disk-shaped floating prevention member 49
The seedling mat 43
It is possible to reliably prevent the rising of.

FIG. 10 shows a seedling mat floating prevention structure as a fourth embodiment, in which the lateral width of the seedling mat 43 is inward from the left and right vertical ribs 41, 41 on the left and right sides of the support shaft 92. Is approximately 5
Bar-shaped floating prevention members 101, 10 at equally spaced positions
1 is attached to each lifting prevention body 101, the base end of the rod-shaped lifting prevention body 101a is attached to the support shaft 92, the tip is extended to the seedling mounting table body 40 side, and the seedling mounting table body is attached. Along the upper surface of the seedling mounting table body 40 upward from the vicinity of 40, formed by extending the same width as the left and right width of the seedling mat 43, the rod-shaped auxiliary formed in the same floating prevention body 101a Seedling holder 101b
Is formed.

In this way, the auxiliary seedling pressing body 101b is arranged close to the seedling mat 43, and the function of preventing the floating of the seedling mat 43 by the auxiliary seedling pressing body 101b is well secured, and the auxiliary seedling pressing body 101b is conveyed vertically. The sliding resistance of the seedling mat 43 to be received from the floating prevention body 101 is reduced.

FIG. 11 shows a seedling mat floating prevention structure as a fifth embodiment. The basic structure is the same as that of the fourth embodiment, but four floating prevention bodies are used. 101
Are arranged at positions where the lateral width of the seedling mat 43 is divided into about 5 equal parts.

In this way, the seedling mat 43 is surely prevented from rising by the lifting prevention member 101, and
The vertical feed amount of 43 can be secured appropriately.

FIG. 12 shows a seedling mat floating prevention structure as a sixth embodiment. The floating prevention member 10 of this embodiment is shown in FIG.
2, the tip of the floating prevention body 100 of the third embodiment is further extended upward, and the vertical width is formed to be substantially the same as the lateral width of the seedling mat 43, and the vertical transport of the lower vertical transport device 47 is performed. Belt 77
It is formed wider than the upper and lower widths of.

In this way, by reliably pressing the seedling mat 43 on the vertical conveyor belt 77 and preventing the seedling mat 43 from floating, the seedling mat 43 formed by the vertical conveyor belt 77 is prevented.
The vertical transport amount of the can be secured in an appropriate amount.

In addition to the above-described embodiments, the lifting preventive bodies 48, 49, 100, 10 shown in the first to sixth embodiments are also shown.
1 and 102 can be used in an appropriate combination,
The seedling leaf skid body 99 can be attached as necessary, and even in such a use form, it is possible to reliably prevent the seedling mat 43 from rising and to secure an appropriate vertical conveyance amount of the seedling mat 43. .

The number of the floating preventing bodies 48, 49, 100, 101, 102 arranged adjacent to each other in the left-right width direction in order to prevent the lifting of the seedling mat 43 for one row is not limited to that of the embodiment. Instead, one or more may be used.

[0051]

According to the present invention, the following effects can be obtained.

In the present invention according to claim 1, since a strip-shaped seedling mat can be wound around the core roll disposed on the upper part of the seedling mounting table, and the seedling mat can be delivered onto the seedling mounting table. The operator can save the troublesome work of replenishing the seedling mat one by one, and the planting work efficiency of the seedling can be improved.

According to the first aspect of the present invention, a plurality of floating preventive members for preventing floating of the seedling mat are arranged in the lower part of the seedling placing table at intervals in the left-right width direction, and the floating member is lifted. The preventive body should be placed on the left and right sides with an interval that divides the left and right widths of each seedling mat into multiple equal parts, and the vertical width along the upper surface of the seedling mounting table should be the left and right sides of each seedling mat. Since the seedling mats are formed to have almost the same width as each other, the seedling mats can be surely prevented from rising by each lifting prevention body, and the seedling mats that are vertically fed do not hinder the vertical growth of the seedling mats. It is possible to keep the feeding amount properly and to secure the planting accuracy of the seedlings.

According to the second aspect of the present invention, since the floating prevention bodies are also provided in the upper part of the seedling mounting table at intervals in the left-right width direction, the floating of the seedling mat is reliably prevented. Thus, the vertical feed amount of the seedling mat can be properly secured.

According to the third aspect of the present invention, since the floating preventive body is formed by vertically extending along the upper surface of the seedling stand, it prevents the floating of the seedling mat and It is possible to prevent the vertical feeding of the seedling mat.

In the present invention as set forth in claim 4, since the floating prevention body is formed in a disk shape and is rotatably attached to the rotary support shaft whose axis line is oriented in the lateral width direction, the floating of the seedling mat is lifted. In addition to preventing the above, it is possible to smoothly feed the seedling mat with entangled seedlings vertically, and to secure an appropriate vertical feed amount for the seedling mat. It is possible to secure good sticking accuracy.

[Brief description of drawings]

FIG. 1 is a side view of a riding rice transplanter having a seedling stand structure according to the present invention.

FIG. 2 is a side view of the seedling mounting table.

FIG. 3 is a rear view of the seedling placing table.

FIG. 4 is an explanatory view of mounting a roll-shaped seedling mat.

FIG. 5 is a rear view of the seedling table.

FIG. 6 is a side view showing the seedling placing table.

FIG. 7 is an end view of the transmission case.

FIG. 8 is a side view and a rear view showing a seedling mat floating prevention structure as a second embodiment.

FIG. 9 is a side view and a rear view showing a seedling mat floating prevention structure as a third embodiment.

FIG. 10 is a side view and a rear view showing a seedling mat floating prevention structure as a fourth embodiment.

FIG. 11 is a side view and a rear view showing a seedling mat floating prevention structure as a fifth embodiment.

FIG. 12 is a side view and a rear view showing a seedling mat floating prevention structure according to a sixth embodiment.

[Explanation of symbols]

 A Passenger rice transplanter 1 Running section 2 Planting section 28 Seedling stand 43 Seedling mat 44 Rolled seedling mat

Claims (4)

[Claims] 1. A core roll having an axis lined in the left-right width direction is rotatably disposed on the upper part of the seedling table via a stay, and a belt-shaped seedling mat is wound around the outer peripheral surface of the core roll. The seedling mat can be drawn out from the core roll on the seedling mounting table, and a plurality of floating prevention bodies for preventing floating of the seedling mounting mat are arranged at the lower part of the seedling mounting table at intervals in the left-right width direction. , The floating prevention body is placed on the left and right sides at least at equal intervals to divide the lateral width of the seedling mat of each row, and the vertical width along the upper surface of the seedling stand is A seedling platform structure for a riding rice transplanter, which is formed to be approximately the same width as the width of the seedling mat. 2. The seedling platform structure for a riding rice transplanter according to claim 1, wherein floating prevention members are also provided on the upper part of the seedling platform with an interval in the left-right width direction. 3. The seedling mount structure for a riding rice transplanter according to claim 1, wherein the floating prevention body is formed by vertically extending along the upper surface of the seedling mount. 4. The riding rice transplanter according to claim 1, wherein the anti-floating body is formed in a disk shape and is rotatably attached to a rotary support shaft whose axis is oriented in the lateral width direction. Seedling table structure.