Riding rice transplanter

Abstract

To configure a riding type rice transplanter capable of protecting a clutch operation part that performs on-off operation of a small-number-row clutch.SOLUTION: A seedling planting device includes a seedling placement table 18, a plurality of planting transmission cases 14, and a planting arm that plants a seeding in a field surface G by a drive force from the planting transmission cases 14. The planting transmission cases 14 include a small-number-row clutch 36 that performs on-off operation of the drive force fed to the planting arm, clutch operation parts 41, 42 that perform on-off operation of the small-number-row clutch 36, and a cover 50 covering the clutch operation parts 41, 42.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a technique for suppressing the adhesion of mud to the vicinity of a planting transmission case extending rearward of a traveling body. [Background technology]

[0002] Patent Document 1 describes a seedling planting device for a riding rice transplanter. This seedling planting device is equipped with a chemical feeder located higher than the planting transmission case, and is also equipped with a mud cover to prevent mud from being splashed up during planting. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-126272 Summary of the Invention [Problem to be solved by the invention]

[0004] As described in Patent Document 1, in systems equipped with a chemical feeder, the chemical feeder is supported by a support rod whose lower end is fixed to the planting transmission case. The planting transmission case also incorporates a few-row clutch to enable the planting arm driven by the planting transmission case to be driven and stopped, and an operating part such as an operating arm that operates the few-row clutch on and off is provided on the outer surface of the planting transmission case.

[0005] Furthermore, the operating arms and the like provided on the outer surface of the planting transmission case are operated for each planting transmission case via wires or the like.

[0006] Furthermore, since the operating arm that operates the few-row clutch intermittently is positioned in an exposed state, there is a concern that mud may adhere to it, making smooth operation difficult.

[0007] For these reasons, there is a demand for a riding rice transplanter that can protect the clutch operating unit that intermittently operates the minority row clutch. [Means for solving the problem]

[0008] The characteristic configuration of the riding rice transplanter of the present invention is that the seedling planting device is configured with a seedling loading platform that is arranged at the rear of the traveling body and that places mat-shaped seedlings on it, a plurality of planting transmission cases that extend behind the traveling body, and a planting arm that cuts out seedlings from the mat-shaped seedlings placed on the seedling loading platform and plants them on the rice field surface by the driving force from the planting transmission cases, and the planting transmission cases are equipped with a minority row clutch that intermittently operates the driving force to transmit the driving force to the planting arm, and Clutch switching section and Clutch switching section It has a cover that covers The clutch switching unit is provided on the outside of the planting transmission case, and the cover covers the exposed portion of the clutch switching unit from the outside of the planting transmission case. It's at the point.

[0009] According to this configuration, the cover Clutch switching section By covering the Clutch switching section Therefore, the minority row clutch can be operated intermittently. Clutch switching section A riding rice transplanter capable of protecting the rice was constructed.

[0010] In another configuration, the planting transmission case may be capable of connecting the lower end of a support rod that supports equipment provided in the seedling planting device, and an insertion opening through which at least the lower end of the support rod can be inserted may be formed in the cover.

[0011] In a configuration in which the planting transmission case is equipped with a mudguard cover, it becomes difficult to connect the lower end of the support rod as described in Patent Document 1. In particular, riding rice transplanters may be equipped with optional devices for spraying substances other than chemicals. To address this issue, an insertion opening through which at least the lower end of the support rod passes is formed in the cover. This means that when connecting the lower end of the support rod to the planting transmission case, the support rod can be inserted into the insertion opening in the cover, and the cover will not interfere with the placement of the support rod.

[0012] In another configuration, the cover has an upper wall portion, left and right side wall portions, and a vertically oriented rear wall portion, and at least one of the left and right side wall portions is connected and fixed to the planting transmission case to form the insertion opening, and the cover may be formed from a resin that allows a pre-installed opening area to be cut out from the area extending from the rear wall portion to the upper wall portion.

[0013] With this, by cutting out a planned opening area of ​​the cover that corresponds to the shape of the lower end of the support rod, it is possible to form an insertion opening that is suitable for inserting the lower end of the support rod.

[0014] As another configuration, a plurality of the planned opening regions may be set, and the thickness of the cover may be made different in the plurality of planned opening regions.

[0015] This makes it possible to form an insertion opening in the intended opening region by, for example, cutting out a part of the cover along the boundary between the different thicknesses.

[0016] As another configuration, the thickness of the plurality of planned opening regions may be set thinner than the thickness of the other regions of the cover.

[0017] With this, the thickness of the area to be opened is thinner than the thickness of the other areas of the cover, so that the cutting operation can be easily performed.

[0018] As another configuration, a through-hole-shaped bolt insertion hole for fixing the cover to the planting transmission case may be formed in at least one of the pair of left and right side wall portions, and a recess may be formed in the side wall portion in which a cut-out portion of the mold that forms the bolt insertion hole is positioned when the cover is molded using a mold.

[0019] With this, although a recess is formed in the side wall of the cover, a bolt insertion hole for inserting a bolt can be formed in the side wall by cutting off using a mold.

[0020] In another configuration, the cover may further include a front wall portion that protrudes from the front end of the upper wall portion when the cover is molded, and is formed so that its protruding end can be bent downward.

[0021] This allows the cover to be molded from resin so that it extends forward from the front end of the upper wall, and then the front wall can be formed by bending the protruding end downward. As a result, a cover having an upper wall, left and right side walls, a rear wall, and a front wall can be manufactured through simple molding. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is an overall side view of a riding rice transplanter. [Figure 2] FIG. [Figure 3] FIG. 10 is a side view of a portion of the seedling planting device that is provided with a cover. [Figure 4] This is an exploded oblique view of the planting transmission case and cover. [Figure 5] FIG. [Figure 6] FIG. 10 is a perspective view of a cover according to another embodiment (a). [Figure 7] FIG. 10 is a side view of a portion provided with a cover in another embodiment (a). [Figure 8] FIG. 10 is a perspective view of a cover according to another embodiment (b). [Figure 9] FIG. 10 is a side view of a portion provided with a cover in another embodiment (b). DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1 shows a riding rice transplanter A, and Figure 2 shows a plan view of the seedling planting device 5. In these figures, F indicates the forward direction, B indicates the backward direction, U indicates the upward direction, D indicates the downward direction, R indicates the rightward direction, and L indicates the leftward direction.

[0024] (Overall configuration of riding rice transplanter) As shown in Figure 1, a freely movable traveling machine body 3 is made up of right and left front wheels 1 and right and left rear wheels 2. A seedling planting device 5 is supported at the rear end of a link mechanism 4 that extends rearward from the rear of the traveling machine body 3. A fertilizing device 6 is supported at the rear of the traveling machine body 3, and a soil leveling device E is located at the front of the seedling planting device 5.

[0025] A hydraulic cylinder 7 is connected between the rear of the traveling body 3 and the link mechanism 4. The hydraulic cylinder 7 is driven to extend and retract, thereby lifting and lowering the seedling planting device 5.

[0026] A driver's seat 8 and a steering handle 9 for steering the front wheels 1 are provided on the traveling body 3. Right and left support frames 10 are connected to the right and left front sections of the traveling body 3. A spare seedling loading tray 11 is provided on these support frames 10. Mat-shaped seedlings to be replenished to the seedling loading tray 18 of the seedling planting device 5 are placed on the spare seedling loading tray 11.

[0027] (Configuration of seedling planting device) As shown in Figures 1 to 3, the seedling planting device 5 is configured as an 8-row planting type and has a feed case 12, a support frame 13, multiple planting transmission cases 14, multiple rotating cases 15, multiple planting arms 16, multiple floats 17, and a seedling carrying table 18.

[0028] The feed case 12 is supported at the rear of the link mechanism 4. The support frame 13 is a square pipe extending in the left-right direction and is connected to the feed case 12. Multiple (four) planting transmission cases 14 extend behind the traveling body 3 by connecting their respective front ends to the support frame 13.

[0029] The rotating case 15 is located on the right and left rear of the planting transmission case 14 and is rotatably supported by a left-right rotating drive shaft 35. A pair of planting arms 16 is attached to the rotating case 15.

[0030] The seedling carrying tables 18 are supported by sliding rails 19 provided on the upper surfaces of the multiple planting transmission cases 14. A pair of planting arms 16 attached to the rotating case 15 cuts the seedlings from the lower end of the mat row seedlings placed on the seedling carrying tables 18 and plants them in the rice field G as the rotating case 15 rotates.

[0031] In this riding rice transplanter A, as the traveling body 3 advances, the leveling device E levels the rice field surface G. In addition, as the traveling body 3 advances, the seedling planting device 5 operates to drive the seedling loading platform 18 back and forth in the left and right direction. As a result, the planting arm 16 successively cuts out the seedlings from the bottom end of the mat of row seedlings placed on the seedling loading platform 18 and plants them in the rice field surface G.

[0032] (Fertilizer) As shown in FIG. 1, the fertilizer applicator 6 has a hopper 21, a delivery unit 22, a blower 23, a furrow former 24, and a hose 25.

[0033] In the fertilizer applicator 6, fertilizer is stored in a hopper 21. In addition, in the fertilizer applicator 6, the delivery unit 22 delivers the fertilizer stored in the hopper 21 to a hose 25 as the traveling machine body 3 moves forward.

[0034] The dispensed fertilizer is supplied to the furrow former 24 by the flow of air supplied from the blower 23. The furrow former 24 is positioned so that its tip extends below the rice field surface G, and the fertilizer is supplied to the furrows formed in the rice field surface G by this furrow former 24. As the traveling machine body 3 travels, the furrows formed in the rice field surface G by the furrow former 24 are backfilled with soil covering members (not shown).

[0035] (Drive configuration of seedling planting device) As shown in Figures 1 to 4, power from an engine (not shown) mounted on the traveling body 3 is transmitted to the feed case 12 from a transmission shaft 26 (see Figure 1). An input shaft 31 extending in the left-right direction is built into the front end portions of the planting transmission cases 14. A plurality of intermediate drive shafts 32 connected to the plurality of input shafts 31 are provided coaxially with the input shafts 31. The plurality of intermediate drive shafts 32 are housed in corresponding cylindrical cases 37.

[0036] The drive shaft 28 is connected to the central one of the multiple intermediate drive shafts 32 in the left-right direction. The drive force of the feed case 12 is transmitted to the passive shaft 28 via a drive chain 29. In this way, the drive force of the feed case 12 is transmitted to the multiple input shafts 31 and the multiple intermediate drive shafts 32.

[0037] Torque limiters 33 are provided at positions where the driving force of the multiple input shafts 31 is transmitted to the driving sprocket. These torque limiters 33 are provided inside each of the multiple planting transmission cases 14. A transmission chain 34 is provided to transmit the driving force from the driving sprocket, to which the driving force is transmitted from the torque limiter 33, to the driven sprocket of the rotary drive shaft 35 at the rear of the planting transmission case 14. This transmission chain 34 is housed inside each of the multiple planting transmission cases 14.

[0038] Each of the plurality of rotary drive shafts 35 is provided with a minority clutch 36. The minority clutch 36 connects and disconnects the driving force transmitted from the transmission chain 34 to the rotary drive shaft 35.

[0039] A clutch operating shaft 41 ( Clutch switching section A clutch operating lever 42 (an example of a clutch operating lever) is supported on the top surface of the planting transmission case 14 so as to be able to move forward and backward. Clutch switching section (Example of a case) is supported.

[0040] The few-row clutch 36 maintains a transmission state when not in operation, and the clutch operating shaft 41 protrudes upward in this state. The few-row clutch 36 is switched to a disengaged state by pressing the clutch operating shaft 41.

[0041] An end of an operating wire 43 is connected to the operating member 42a of the clutch operating lever 42. The same number of operating wires 43 as the planting transmission cases 14 are provided, and the front ends of these operating wires 43 are connected to a manually operated lever or a mechanism that selectively pulls and operates the multiple operating wires 43 using the driving force of an electric motor.

[0042] With this configuration, by interrupting transmission with the few-row clutch 36 in each of the multiple planting transmission cases 14, it is possible to stop planting seedlings in multiple units, with the planting arm 16 acting as a single unit.

[0043] (drug spraying device) As shown by the two-dot chain line in Figure 3, the riding rice transplanter A can be fitted with the chemical spraying device C above the planting transmission case 14 of the seedling planting device 5. When this is done, the lower end of the support rod 45 is supported on the upper surface of the planting transmission case 14.

[0044] The aforementioned clutch operating shaft 41 and clutch operating lever 42 are positioned at a height close to the rice field surface G. This has caused mud to adhere to them, resulting in malfunctions. To eliminate this inconvenience, a cover 50 is provided to cover the clutch operating shaft 41 and clutch operating lever 42, as shown in Figures 3 and 4.

[0045] The cover 50 is provided on the planting transmission case 14, and the chemical spraying device C is attached with this cover 50 in place.

[0046] 4 and 5, the cover 50 is made of resin and includes an upper wall portion 51, a left side wall portion 52 (an example of a side wall portion), a right side wall portion 53 (an example of a side wall portion), a rear wall portion 54, and a front wall portion 55. The rear wall portion 54 is formed with an insertion opening 50H through which at least the support rod 45 can be inserted.

[0047] The upper wall portion 51, the left side wall portion 52, the right side wall portion 53, and the rear wall portion 54 are integrally formed. In contrast, the front wall portion 55 is formed so as to protrude from the front end of the upper wall portion 51 when the cover 50 is molded, as shown in Figure 5. The protruding end of the front wall portion 55 is formed so that it can be bent downward.

[0048] The front wall 55 has protrusions 55a formed on both left and right ends. Engagement recesses 49 into which the protrusions 55a engage are formed at the ends of the left wall 52 and the right wall 53 of the cover 50. As a result, by bending the front wall 55 downward, the front wall 55 fits inside the left wall 52 and the right wall 53, and the protrusions 55a engage with the engagement recesses 49. As a result, the position of the front wall 55 is fixed.

[0049] As shown in Fig. 4, holes 14b are formed in a rib 14a that protrudes upward from the top surface of the planting transmission case 14. The cover 50 has a pair of through-hole-shaped bolt insertion holes 53a formed in the right wall portion 53.

[0050] With this configuration, the cover 50 is fixed to the planting transmission case 14 by inserting the fixing bolt 56 into the bolt insertion hole 53a, then inserting this fixing bolt 56 further into the hole 14b of the rib 14a, and tightening the nut 57. By fixing the cover 50 to the planting transmission case 14 in this way, the clutch operating shaft 41 and the clutch operating lever 42 are housed inside the cover 50, eliminating the adhesion of mud.

[0051] The cover 50 is manufactured by molding, and the bolt insertion holes 53a are formed as cutout holes by cutout portions of the mold. As shown in Fig. 5, the space where the cutout portions of the mold are arranged is formed as a recess 53b on the inner surface of the right side wall portion 53.

[0052] (Cover insertion opening) As shown in Figures 3 and 4, a support rod 45 supporting a chemical spraying device C (an example of equipment) has a support plate 46 fixed to its base end. This support plate 46 is oriented vertically and has a through-hole 46a formed therein. With this configuration, the support plate 46 is disposed on the inner surface of the right side wall 53, and fixing bolts 56 are inserted through the bolt insertion holes 53a of the cover 50, the through-holes 46a of the support plate 46, and the holes 14b of the ribs 14a. By tightening nuts 57, the support plate 46 together with the cover 50 are fixed to the planting transmission case 14.

[0053] The rear wall 54 of the cover 50 defines an insertion opening 50H through which the base end of the support rod 45 is inserted. The insertion opening 50H is formed by artificially cutting out an area of ​​the rear wall 54 from the lower end to the upper side.

[0054] 5, the cover 50 has an intended opening region N set in a region extending from the rear wall portion 54 to the upper wall portion 51. This intended opening region N is previously set to have a first opening region Na, a second opening region Nb, and a third opening region Nc.

[0055] The first opening region Na is formed with a first opening width Wa from the lower end of the rear wall portion 54 within the region of the rear wall portion 54. The second opening region Nb is formed with a second opening width Wb in a region from the lower end of the rear wall portion 54 to the upper wall portion 51. The third opening region Nc is formed with the second opening width Wb in a region from the lower end of the rear wall portion 54 to a region of the upper wall portion 51 forward of the second opening region Nb.

[0056] The thickness of each of the first opening region Na, the second opening region Nb, and the third opening region Nc is made different so that they can be easily cut out manually. Specifically, the overall thickness of the cover 50 is set as a reference thickness, and the thickness of the third opening region Nc is made thinner than the reference thickness, the thickness of the second opening region Nb is made thinner than this, and the thickness of the first opening region Na is made thinner than this.

[0057] It is also possible to make the thicknesses of the first opening region Na, the second opening region Nb, and the third opening region Nc thicker than the reference thickness in this order: the third opening region Nc, the second opening region Nb, and the first opening region Na. Also, depending on the type of optional add-on kit (chemical applicator, rear fertilizer applicator, seed sower, etc.), the opening region corresponding to the kit that is frequently added later is either the first opening region Na, the second opening region Nb, or the third opening region Nc, and it is also possible to make the opening region that is frequently opened thinner than the other opening regions.

[0058] In the cover 50 of FIG. 4, an insertion opening 50H is formed by cutting out the first opening region Na, and the base end portion of the support rod 45 is inserted rearward through this insertion opening 50H.

[0059] [Effects of the embodiment] In this way, by connecting and fixing the cover 50 to the planting transmission case 14, the upper wall portion 51, the left side wall portion 52, the right side wall portion 53, and the rear wall portion 54 of the cover 50 are in contact with the clutch operating shaft 41 ( Clutch switching section ) and clutch operating lever 42( Clutch switching section As a result, even if mud is scattered during planting, the mud will not adhere to the clutch operating shaft 41 or the clutch operating lever 42, and smooth operation of these components is maintained.

[0060] Furthermore, in order to attach the chemical spraying device C to the seedling planting device 5, the lower end of the support rod 45 is connected and fixed to the planting transmission case 14. To enable this connection and fixation, an insertion opening 50H corresponding to the shape of the lower end of the support rod 45 is formed in the rear wall portion 54 of the cover 50. As a result, the base end of the support rod 45 can be supported and the chemical spraying device C can be attached without removing the cover 50.

[0061] The cover 50 has a plurality of opening regions N set in advance that correspond to the shape of the base end of the support rod 45, and the thicknesses of the plurality of opening regions N are made different. As a result, when one of the plurality of opening regions N is selected to form the insertion opening 50H, the insertion opening 50H of the required size can be formed by cutting out a position portion of the cover 50 based on the thickness.

[0062] [Another embodiment] The present invention may be configured as follows in addition to the above-described embodiments (common numbers and symbols are used to designate components having the same functions as those in the embodiments).

[0063] (a) As shown in Figures 6 and 7, with the support plate 46 connected to the rib 14a on the top surface of the planting transmission case 14, the support rod 45 is connected to the support plate 46 by setting its position so that it protrudes diagonally upward and rearward.

[0064] In this configuration in which the support rod 45 protrudes diagonally upward and rearward, the support rod 45 is positioned to be inserted into the region of the upper wall portion 51 of the cover 50. For this reason, by cutting out the region of the second opening region Nb shown in FIG. 5 from the cover 50, the insertion opening 50H is formed in the region extending from the upper wall portion 51 to the rear wall portion 54.

[0065] In this other embodiment (a), a spraying device having a similar configuration to the chemical spraying device C described in the embodiment is to be supported, and the spraying device is connected to the upper end of the support rod 45.

[0066] (b) As shown in Figures 8 and 9, the support plate 46 extends above the upper wall portion 51 of the cover 50 while connected to the rib 14a on the upper surface of the planting transmission case 14. The support plate 46 is formed in this manner, and a plurality of rod-shaped support rods 45 are supported near the upper end of the support plate 46.

[0067] In the configuration of this alternative embodiment (b), the support plate 46 is disposed in a state in which it is inserted upward through the upper wall portion 51. For this reason, by cutting out the second opening region Nb shown in FIG. 5 from the cover 50, the insertion opening 50H is formed in the region extending from the upper wall portion 51 to the rear wall portion 54.

[0068] In the configuration of this alternative embodiment (b), a plurality of support rods 45 support a scattering prevention cover (not shown: an example of equipment) that prevents mud from scattering, and the scattering prevention cover is supported in a horizontal position on the upper ends of the plurality of support rods 45.

[0069] (c) The chemical spraying device C described in the embodiment and the scattering prevention cover described in another embodiment (b) are supported on the seedling planting device 5. To enable such support, the support plate 46 described in the embodiment and the support plate 46 described in another embodiment (b) are fixed to the planting transmission case 14 in an overlapping state.

[0070] (d) Small openings in the shape of dotted lines may be formed between the opening regions or between the opening regions and other regions of the case, which makes it possible to easily open the case by applying an extrusion force to the required region without using tools or with minimal tools.

[0071] (e) In the configurations of the alternative embodiments (c) and (d), the lower end of the support rod 45 and the support plate 46 are inserted into the insertion opening 50H, and therefore the insertion opening 50H that allows these to be inserted is formed in the cover 50. This insertion opening 50H can be set in advance as the planned opening region N, but it may also be formed by cutting out a corresponding portion of the cover 50 without setting the planned opening region N.

[0072] (f) The insertion opening 50H may be formed only in the upper wall portion 51 of the cover 50, or may be formed in a region extending from the upper wall portion 51 to the side wall portion.

[0073] (g) It is also possible to provide the cover 50 without the insertion opening 50H on the planting transmission case 14. By configuring it in this way, the clutch operating lever 42 that operates the few-row clutch 36 on and off can be protected.

[0074] Furthermore, the configurations disclosed in the above embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, as long as no contradictions arise. Furthermore, the embodiments disclosed in this specification are examples, and the embodiments of the present invention are not limited to these, and can be modified as appropriate within the scope that does not deviate from the purpose of the present invention. [Industrial Applicability]

[0075] The present invention can be used in a riding rice transplanter having a planting transmission case with a built-in individual row clutch. [Explanation of symbols]

[0076] 5 Seedling planting device 6 Running body 14 Planting transmission case 16 Planting arm 18 Seedling tray 36 Minority Clutch 41 Clutch operating shaft ( Clutch switching section ) 42 Clutch operating lever ( Clutch switching section ) 45 Support rod 50 Cover 50H insertion opening 51 Upper wall 52 Left side wall (side wall) 53 Right side wall (side wall) 53a Bolt insertion hole 53b Recess 54 Rear wall 55 Front wall C. Chemical spraying device (equipment) G Tanabe N Opening area

Claims

1. A seedling loading platform is arranged at the rear of the traveling machine body and on which mat-shaped seedlings are placed; A plurality of planting transmission cases extending rearward of the traveling machine body; a planting arm that cuts out seedlings from the mat-like seedlings placed on the seedling-bearing table by the driving force from the planting transmission case and plants them on the rice field surface, The planting transmission case is provided with a few-row clutch that interrupts the driving force that can transmit the driving force to the planting arm, and a clutch switching unit that interrupts the few-row clutch, and a cover that covers the clutch switching unit, The clutch switching unit is provided outside the planting transmission case, The cover is a riding rice transplanter that covers the exposed portion of the clutch switching unit from the outside of the planting transmission case.

2. The planting transmission case can be connected to the lower end of a support rod that supports equipment provided in the seedling planting device, and an insertion opening through which at least the lower end of the support rod is inserted is formed in the cover. A riding rice transplanter as described in claim 1.

3. The cover has an upper wall portion, left and right side wall portions, and a vertically oriented rear wall portion, and at least one of the left and right side wall portions is connected and fixed to the planting transmission case, 3. The riding rice transplanter according to claim 2, wherein the cover is formed of a resin that allows a pre-installed opening area to be cut out from the area extending from the rear wall portion to the upper wall portion in order to form the insertion opening.

4. The riding rice transplanter according to claim 3, wherein a plurality of the planned opening areas are set, and the cover has different thicknesses in the plurality of planned opening areas.

5. The riding rice transplanter according to claim 4, wherein the thickness of the plurality of planned opening areas is set thinner than the thickness of the other areas of the cover.

6. At least one of the pair of left and right side wall portions has a through-hole-shaped bolt insertion hole for fixing the cover to the planting transmission case, The riding rice transplanter according to claim 3, wherein a recess in which a cut-off portion of the mold that forms the bolt insertion hole is located is formed in the side wall portion when the cover is molded using a mold.

7. The cover further includes a front wall portion that protrudes from the front end of the upper wall portion when the cover is molded, and the protruding end is formed so that it can be bent downward. A riding rice transplanter as described in claim 3.

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