JP2024042433A - Sulky type seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sulky type seedling transplanter which includes a preliminary seedling table having a seedling box recovery device in which safety is improved by preventing contact with another object when traveling on a road, in order to solve such a problem of safety that, when an empty box recovery rail that recovers an empty seedling box is provided on an outer side of a preliminary seedling table, even though work for recovering the empty seedling box can be easily performed and the workability is improved, a machine body lateral width becomes wide and the transplanter contacts another object when traveling on a road, in a sulky type seedling transplanter which includes the empty box recovery rail that recovers the empty seedling box on the outer side of the preliminary seedling table.

SOLUTION: A sulky type seedling transplanter comprises seedling box recovery devices 71a, 71b, 71c which slide-move empty seedling boxes on an outer side of a preliminary seedling mounting device 38, and is configured to be freely switchable between a seedling box guide action state (i) where the seedling box recovery devices 71a, 71b, 71c are located on the outer side of the preliminary seedling mounting device 38 and the empty seedling boxes are movable and a storage state where the seedling box recovery devices are stored in the preliminary seedling mounting device 38.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a riding-type seedling transplanter in which a seedling planting section is attached to a traveling vehicle body equipped with a spare seedling stand.

There is a riding-type seedling transplanter that is provided with an empty box collecting rail for collecting empty seedling boxes on the outside of a preliminary seedling mounting stand (see, for example, Patent Document 1).

JP2022-069140A

Providing an empty box collection rail for collecting empty seedling boxes on the outside of the preliminary seedling platform makes it easier to collect empty seedling boxes and improves work efficiency, but the width of the machine becomes wider from side to side, making it difficult to drive on the road. There was a safety issue when it came into contact with other objects.

The present invention has been made in consideration of the above, and aims to provide a riding seedling transplanter equipped with a spare seedling carrier with a seedling box recovery device that prevents the machine from colliding with other objects while traveling on the road, improving safety.

The invention according to claim 1 provides a riding-type seedling transplanter equipped with a preliminary seedling loading device 38 on the front side of the traveling vehicle body 2 and a seedling planting section 4 attached to the rear side, in which the outside of the preliminary seedling loading device 38 is provided. Seedling box collecting devices 71a, 71b, 71c for sliding empty seedling boxes N are provided at This is a riding-type seedling transplanter configured to be able to switch freely between a movable seedling box guiding state (a) and a storage state in which the seedling box is housed inside a preliminary seedling loading device 38 (b).

According to the invention described in claim 1, seedling box collecting devices 71a, 71b, 71c for sliding empty seedling boxes N are provided outside the preliminary seedling loading device 38, and the seedling box collecting devices 71a, 71b, 71c are The structure can be freely switched between a seedling box guiding state (a) in which the empty seedling box N is located outside the preliminary seedling loading device 38 and can be moved freely, and a storage condition (b) in which the empty seedling box N is stored inside the preliminary seedling loading device 38. Therefore, during rice planting work in the field, the seedling box collecting devices 71a, 71b, and 71c are positioned outside the preliminary seedling loading device 38, and the empty seedling box N is placed in the movable seedling box guiding state (a). The empty seedling boxes N can be moved toward the outside of the machine to improve work efficiency when collecting empty seedling boxes N. When driving on the road, the seedling box collecting devices 71a, 71b, and 71c can be moved inside the preliminary seedling loading device 38. In the stored storage state (b), the seedling box collecting devices 71a, 71b, 71c are prevented from coming into contact with other objects, and can be safely driven on the road.

The invention as claimed in claim 2 is such that the plurality of preliminary seedling loading tables 38a, 38b, 38c of the preliminary seedling loading device 38 are arranged vertically, and then the plurality of preliminary seedling loading tables 38a, 38b, 38c are arranged on a plane in the longitudinal direction of the machine. When the seedling box recovery device 71a, 71b, 71c is positioned outside each of the plurality of preliminary seedling mounting stands 38a, 38b, 38c, the empty seedling box N can be moved freely. 2. The riding-type seedling transplanter according to claim 1, wherein when the actuating state (a) is set, communication is made in the front-back direction and the empty seedling box N can be slid from the rear toward the front.

The invention described in claim 3 is a riding seedling transplanter described in claim 1 or claim 2, in which the seedling box recovery devices 71a, 71b, 71c support the empty seedling box N in an inclined position toward the outside of the machine body when the seedling box recovery devices 71a, 71b, 71c are positioned outside the spare seedling loading device 38 and are in a seedling box guide operating state (i) in which the empty seedling box N can be moved freely.

According to the fourth aspect of the invention, the seedling box collecting devices 71a, 71b, and 71c fit into the cutout portions 74 formed in the seedling box mounting surface 73 of the preliminary seedling mounting device 38 in the stored state (b), thereby removing the seedling boxes. The riding-type seedling transplanter according to claim 1 or 2, wherein the seedling transplanter is housed flush with the mounting surface 73.

The invention described in claim 5 is the riding seedling transplanter described in claim 3, in which the seedling box recovery devices 71a, 71b, and 71c, in the stored state (B), fit into the cutouts 74 formed in the seedling box loading surface 73 of the spare seedling loading device 38 and are stored flush with the seedling box loading surface 73.

FIG. 1 is a side view of a riding rice transplanter according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the principal part of the traveling vehicle body of the riding-type rice transplanter of embodiment in this invention. 1 is a front view of the vicinity of an oil pan of a riding-type rice transplanter according to an embodiment of the present invention. It is a top view of the fuel tank of the riding-type rice transplanter of embodiment in this invention. 1 is a simplified plan view of a soil leveling rotor of a riding type rice transplanter according to an embodiment of the present invention. 1 is a perspective view of a preliminary seedling loading device of a riding-type rice transplanter according to an embodiment of the present invention. It is a front cross-sectional view for explaining the operation of the preliminary seedling mounting device of the riding-type rice transplanter according to the embodiment of the present invention. It is a front cross-sectional view for operation explanation which shows 2nd Embodiment of the preliminary seedling mounting device of the riding type rice transplanter of embodiment in this invention.

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

<Overall configuration>
FIG. 1 is a side view of a riding-type rice transplanter equipped with a fertilization device, which is a typical example of the riding-type seedling transplanter of the present invention. This riding-type rice transplanter 1 with a fertilization device has a seedling planting section 4 mounted on the rear side of a traveling vehicle body 2 via an elevating link device 3 so as to be able to be raised and lowered, and a main body portion of a fertilization device 5 on the rear upper side of the traveling vehicle body 2. is provided. In addition, the left and right directions in the forward direction of the riding-type seedling transplanter are referred to as left and right, respectively, and the forward and backward directions are referred to as forward and rear, respectively.

<Running vehicle body 2>
As shown in FIG. 1, the traveling vehicle body 2 is a four-wheel drive vehicle equipped with a pair of left and right front wheels 10, 10 and a pair of left and right rear wheels 11, 11, which are drive wheels, and a transmission case is attached to the front of the body. 12 is arranged, and front wheel final cases 13, 13 are provided on the left and right sides of the mission case 12, and protrude outward from each front wheel support part that can change the steering direction of the left and right front wheel final cases 13, 13. Left and right front wheels 10, 10 are respectively attached to left and right front wheel axles.

The front end of the main frame 15 is fixed to the back of the transmission case 12, and the rear gear case 18, 18 is supported so as to be freely rolling, and rear wheels 11, 11 are attached to rear wheel axles that protrude outward from rear wheel gear cases 18, 18.

The engine 20 is mounted on an engine bracket 19 provided at the front of the vehicle body 2, and the rotational power of the engine 20 is transmitted to the transmission case 12 via a belt transmission device and an HST 23.

The rotational power transmitted to the transmission case 12 is changed in speed by the transmission inside the transmission case 12, and then separated into running power and externally taken out power. A portion of the running power is transmitted to the front wheel final cases 13, 13 to drive the front wheels 10, 10, and the remainder is transmitted to the rear wheel gear cases 18, 18 to drive the rear wheels 11, 11. The externally taken out power is transmitted to a planting clutch case provided at the rear of the traveling body 2, and is then transmitted to the seedling planting section 4 by the planting transmission shaft 26, and is also transmitted to the fertilizer application device 5 by the fertilizer application transmission mechanism.

The upper, front, and left and right parts of the engine 20 are covered by a bonnet 30. Floor steps 31 are provided on both left and right sides and rear of the hood 30.

The engine bracket 19 is welded and fixed onto the front end of the main frame 15 to improve the rigidity of the main frame 15 in order to cope with vibrations of the engine 20.

The floor step 31 is mounted on the main frame 15. For example, a part of the floor step 31 near the driver's seat 32 is formed in a lattice shape in plan view so that mud adhering to the shoes of workers can be dropped onto the paddy field.

The rear central portion of the floor step 31 is formed in a convex shape, and a pilot's seat 32 is provided on the upper surface thereof.

A rear step 33 is provided at the rear end of the floor step 31 and also serves as fenders for the left and right rear wheels 11, 11 which are configured high.

The upper part of the bonnet 30 is equipped with various operating mechanisms, and above it is provided a handle 34 for steering the front wheels 10, 10.

The lifting link device 3 is a parallel link structure, and includes one upper link 40 and a pair of lower links 41, 41 on the left and right. The base side of each of these links 40, 41, 41 is rotatably attached to a link base frame 42, which is shaped like a portal when viewed from the rear and is erected at the rear end of the main frame 15, and a vertical link 43 is connected to the tip side of each link. A connecting shaft 44, which is rotatably supported on the seedling planting unit 4, is inserted and connected to the lower end of the vertical link 43, and the seedling planting unit 4 is connected to the connecting shaft 44 so that it can roll freely around it. A lifting hydraulic cylinder 46 is provided between the link base frame 42 and the vertical link 43, and by hydraulically expanding and contracting the cylinder 46, the lifting link device 3 rotates up and down, and the seedling planting unit 4 rises and falls while maintaining a substantially constant posture.

Left and right line markers 35, 35 are provided on both left and right sides of the front portion of the traveling vehicle body 2.

The bases of the left and right line drawing markers 35, 35 are pivoted to the tips of left and right marker stays 36, 36 whose bases are fixed to the main frame 15 and which extend in the left and right direction of the aircraft, by pivot shafts in the front and back direction, and are in an upwardly moved storage state. It can be freely switched to an operating state for drawing a center line for the next process on the lowered field, and waterwheel-shaped markers 37, 37 are rotatably provided at the tips of the left and right line drawing markers 35, 35.

In addition, as shown in FIG. 2, the bases of left and right side markers 39, 39 for tracing the planted seedlings are pivoted at the tips of the left and right marker stays 36, 36 by pivot shafts in the front-rear direction, and are mounted inside the body. It is provided so that it can be freely switched between a stored state and an operating state in which it is deployed to the outside of the machine and traces the already planted seedlings.

Therefore, since the left and right marker stays 36, 36 also serve as support members for providing the left and right line markers 35, 35 and the left and right side markers 39, 39, the structure is simple and inexpensive.

Further, on both left and right sides of the front portion of the traveling vehicle body 2, left and right spare seedling loading devices 38, 38 are provided on which seedlings for supply are placed.

An oil pan 47 is provided below the engine 20 so as to protrude downward from the fuselage.

As shown in FIGS. 1 and 3, the front and rear bases of U-shaped left and right guard frames 48, 48 that guard the left and right sides of the oil pan 47 are fixed to the front and rear frames 19a, 19a of the engine bracket 19 on which the engine 20 is mounted, The lower sides of the left and right guard frames 48, 48 are located below the bottom surface of the oil pan 47 to prevent the left and right guard frames 48, 48 from contacting or interfering with other objects from the left, right, and lower sides of the oil pan 47. do.

Note that if the left and right guard frames 48, 48 are fixed integrally with covers that cover engine peripheral members such as mufflers disposed on the left and right sides of the engine 20, the mutual strength of the left and right guard frames 48, 48 and the cover is increased.

Further, the left and right bases of a U-shaped front guard frame 49 that guards the front side of the oil pan 47 are fixed to the front frame 19a of the engine bracket 19, and the lower side of the front guard frame 49 is lower than the bottom surface of the oil pan 47. The front guard frame 49 prevents other objects from contacting and interfering with the oil pan 47 from the front and lower sides.

As shown in FIGS. 2 and 4, a fuel tank 21 for an engine 20 supported by a main frame 15 is provided below a driver's seat 32 in the left-right center of the rear portion of the vehicle body 2.

Left and right side steps are provided at the rear left and right sides of the floor step 31 in order to improve the efficiency of various tasks for workers on board the aircraft (supplying seedlings to the seedling planting section 4 and supplying fertilizer to the fertilization device 5). 31a, 31a are provided, and it is difficult to supply fuel from outside the machine to the fuel tank 21 located at the left and right center of the vehicle body 2.

Therefore, in order to make it easier to supply fuel to the fuel tank 21, the oil intake port 21a of the fuel tank 21 is placed outside the right side step 31a (the left side step 31a may also be used), so that fuel can be supplied from outside the aircraft. We make it easy to do.

The oil intake port 21a is fixed to the outside of a step support member 31b connected to the main frame 15 that supports the right side step 31a.

A connecting pipe 21c is connected to the oil inlet 21a and the L-shaped pipe 21b fixed to the fuel tank 21.

Therefore, fuel can be easily supplied to the oil intake port 21a from outside the machine (by placing a replenishment fuel tank on the right side step 31a and supplying fuel, the fuel can be easily supplied with good workability). Fuel is stored in the fuel tank 21 through the connecting pipe 21c and the L-shaped pipe 21b.

<Seedling planting section 4>
The seedling planting section 4 has a six-row planting configuration, with a transmission case 50 that also serves as a frame, and a mat on which the seedlings are placed and reciprocated left and right to supply the seedlings one by one to the seedling outlet 51a of each row, and also to feed the seedlings one by one to the seedling outlet 51a of each row. It is equipped with a seedling platform 51 that transports the seedlings downward by a seedling feeding belt that supplies all the seedlings to the seedling outlet 51a, and a seedling planting device 52 that plants the seedlings supplied to the seedling outlet 51a in the field.

In the lower part of the seedling planting section 4, a center float 55 is provided at the center, and left and right side floats 56, 56 are provided on the left and right sides of the center float 55, respectively. When the aircraft moves forward with these floats 55, 56, 56 in contact with the muddy surface of the field, the floats 55, 56, 56 slide while leveling the muddy surface, and the seedling planting device 52 is applied to the site of the leveling. Seedlings are planted.

Each of the floats 55, 56, and 56 is rotatably attached so that the front end side moves up and down according to the unevenness of the topsoil surface of the field, and during planting work, the up and down movement of the front part of the center float 55 is detected by the angle of attack control sensor. (not shown), and the seedling planting section 4 is raised and lowered by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result, thereby always maintaining the planting depth of the seedlings constant. .

A soil leveling rotor 27, which is an example of a soil leveling device, is attached to the seedling planting section 4.

The ground leveling rotor 27 is composed of left and right side rotors 27a, 27a that level the tracks of the left and right rear wheels 11, 11. In other words, the left and right side rotors 27a, 27a level the field in front of the left and right side floats 56, 56.

In addition, the conventional center rotor for leveling the field in front of the center float 55 has been eliminated, resulting in a simpler configuration, and the seedling planting section 4 has been moved as close as possible to the rear of the traveling vehicle body 2 to reduce the overall length of the riding rice transplanter 1. The length has been shortened to improve workability in the field.

To drive the left and right side rotors 27a, 27a, one of the left and right side rotors 27a, 27a is driven by a rotor drive shaft from a transmission case 50, and one of the driven side rotors 27a is connected to the other side rotor by a transmission shaft 27b. 27a.

As shown in FIG. 5, the transmission shaft 27b from one side rotor 27a to the other side rotor 27a is arranged above the front part of the center float 55.

<Fertilizer 5>
The fertilization device 5 dispenses a fixed amount of granular fertilizer stored in a fertilizer hopper 60 using a dispensing unit 61, and guides the fertilizer through a fertilization hose 62 to fertilization guides 63 attached to both left and right sides of floats 55, 56, and 56. A groove forming member 64 provided on the front side of the fertilization guide 63 allows the fertilization to be dropped into a fertilization area formed near the side of the seedling planting row.

Air generated by a blower driven by an electric blower motor is blown into the fertilizing hose 62 via a horizontally long air chamber 59, and the fertilizer in the fertilizing hose 62 is forcibly conveyed by wind pressure. ing.

<Preliminary seedling loading device 38>
Furthermore, a pair of left and right reserve seedling loading devices 38, 38 are provided on both left and right sides of the front portion of the traveling vehicle body 2, on which seedlings for supply supported by the support frame 149 are placed.

The preliminary seedling mounting device 38 is structured into three upper and lower stages by movable link members 70, and consists of a first preliminary seedling loading table 38a, a second preliminary seedling loading table 38b, and a third preliminary seedling loading table 38c in the uppermost stage.

The second spare seedling platform 38b is fixed to the support frame 149. The second spare seedling platform 38b can be positioned at the center, with the first spare seedling platform 38a and the third spare seedling platform 38c positioned above and below it, forming an overall three-tiered arrangement, or the movable link member 70 can be rotated to position the second spare seedling platform 38b at the center, with the first spare seedling platform 38a and the third spare seedling platform 38c positioned in front and behind it, respectively, so that the first, second and third spare seedling platforms 38a, 38b and 38c are positioned on the same plane overall.

Further, the first, second, and third preliminary seedling trays 38a, 38b, and 38c, which are composed of three upper and lower stages, can be changed to have a planar shape with one stage in the front and back, while the seedling tray is placed thereon.

Further, when rearranging the first, second, and third preliminary seedling stands 38a, 38b, and 38c into three levels above and below or on the same plane, the moving link member 70 is operated by the electric motor M. In this case, work efficiency is improved if the operating switch for the electric motor M is provided at two locations, one on the operator's side and one on the side of an assistant who is located around the seedling planting section 4 apart from the operator.

As shown in FIGS. 1, 6, and 7, each of the first preliminary seedling table 38a, the second preliminary seedling table 38b, and the third preliminary seedling table 38c is provided with a seedling box made of a rod. Return rails 71a, 71b, and 71c are provided as a seedling box recovery device for vertically placing and sliding the seedling box.

The return rails 71a, 71b, and 71c are configured so that the seedling box N can be placed horizontally and tilted toward the outside of the machine, and as shown in FIG. When the platform 38b and the third preliminary seedling platform 38c are arranged in three tiers, one seedling box N can be placed on each of the return rails 71a, 71b, and 71c.

In addition, as shown in FIGS. 6 and 7, the first preliminary seedling loading table 38a, the second preliminary seedling loading table 38b, and the third preliminary seedling loading table 38c are arranged in the front-rear direction and arranged on the same plane (for rice planting work). In this case, the return rails 71a, 71b, 71c are in communication with each other in the front-rear direction, and the return rails 71a, 71b, 71c are placed horizontally when the seedling box N is erected. 71c can be slid from the rear end to the front end.

Note that, as shown in FIG. 7, the return rails 71a, 71b, and 71c are inclined toward the outside of the body, so that an empty seedling box N can be placed thereon and slid stably.

The bases of the return rails 71a, 71b, and 71c are pivoted to the first preliminary seedling platform 38a, the second preliminary seedling platform 38b, and the third preliminary seedling platform 38c, respectively, by pivot shafts 72 in the front-rear direction. The seedling box guide operation state (a) stands up on the outside of the first preliminary seedling platform 38a, the second preliminary seedling platform 38b, and the third preliminary seedling platform 38c, and the first preliminary seedling platform 38a and the second preliminary seedling platform 38c are shown in FIG. They fit into the notch grooves 74 as notches formed in the seedling box mounting surface 73 of the seedling mounting table 38b and the third preliminary seedling mounting table 38c, and are housed flush with the seedling box mounting surface 73. It is configured so that it can be freely switched to the stored state (b).

Note that the above-mentioned flush condition means that the seedling box N is placed on the seedling box placement surface 73, where the upper surfaces of the return rails 71a, 71b, and 71c in the stored state (b) are the same as the seedling box placement surface 73. It is in a state where it is somewhat higher or lower than the seedling box mounting surface 73 to the extent that it does not cause any trouble.

Note that the outer side walls 75 of the first preliminary seedling platform 38a, the second preliminary seedling platform 38b, and the third preliminary seedling platform 38c are provided with grooves 76 through which the return rails 71a, 71b, and 71c can be passed when switching. is forming.

<Rice planting work>
When performing rice planting work in the field, operate the operation switch of the electric motor M to move the left and right reserve seedling loading devices 38 so that the first, second, and third preliminary seedling loading stands 38a, 38b, and 38c are on the same plane. Switch to the state where it is placed. At that time, the return rails 71a, 71b, and 71c are placed in the seedling box guiding state (A) that stands up on the outside of the first preliminary seedling platform 38a, the second preliminary seedling platform 38b, and the third preliminary seedling platform 38c. The empty seedling box N can be erected horizontally and slid from the rear end to the front end of the return rails 71a, 71b, 71c.

A worker seated in the driver's seat 32 of the riding rice transplanter 1 operates the machine to bring the front part of the riding rice transplanter 1 onto a ridge or road.

The worker who is on the ridge or road places the seedling box N in which the seedlings have been raised, placed on the ridge or road, on the first preliminary seedling platform 38a located in the front, which is arranged on the same plane, and moves it by pushing it towards the rear of the machine. Slide it to the third preliminary seedling mounting stand 38c located at .

The operator on board the aircraft picks up the seedling box N that has been slid to the third preliminary seedling platform 38c, takes out the matted seedlings with soil from the seedling box N, and transfers them to the seedling platform 51 of the seedling planting section 4. supply to. Then, an empty seedling box N is placed on the rear end portions of the return rails 71a, 71b, and 71c that are in communication with each other in the front-rear direction, and is slid forward.

A worker on the ridge or road slides the empty seedling box N placed on the return rails 71a, 71b, and 71c that are connected in the front-rear direction forward, pulls it out from the front end, and places it on the ridge or road. Alternatively, place the seedling box N with raised seedlings placed on the road on the first preliminary seedling platform 38a located at the front arranged on the same plane, and push it toward the rear of the aircraft to move it to the third preliminary seedling platform 38c located at the rear. Move the slide.

In this way, the seedling box N placed on the ridge or road is connected to the first, second and third preliminary seedling stands 38a, 38b, 38c arranged on the same plane and the return in a state in which they are communicated in the front and back direction. By using the rails 71a, 71b, and 71c, the seedlings can be easily and efficiently supplied to the seedling platform 51 of the seedling planting section 4, and the empty seedling boxes N can be collected from the machine body to the ridge.

After finishing the work of supplying seedlings to the seedling platform 51 of the seedling planting section 4, the worker on the ridge or road transfers the seedling boxes N placed on the ridge or road into the first, second, and third seedling boxes N. The seedlings are placed on the left and right preliminary seedling mounting devices 38 in which three preliminary seedling mounting stands 38a, 38b, and 38c are arranged on the same plane.

It also picks up fertilizer bags placed on the ridges or roads and carries them to the fertilizer hopper 60 of the fertilizer applicator 5 to supply fertilizer.

An operator seated in the driver's seat 32 of the riding rice transplanter 1 moves the machine along a predetermined route in the field to perform rice transplanting and fertilizing operations.

When there are few remaining seedlings with mat-like soil placed on the seedling platform 51 of the seedling planting section 4 during the rice planting work, the seedling box N placed on the left and right spare seedling placement devices 38 is picked up and removed from the seedling box N. The matted seedlings with soil are taken out and supplied to the seedling stand 51 of the seedling planting section 4, and the empty seedling boxes N are placed on the return rails 71a, 71b, 71c.

When the mat-shaped seedlings with soil on the seedling platform 51 of the seedling planting section 4 run out and the spare seedlings on the left and right spare seedling loading devices 38 also run out, the front part of the riding rice transplanter 1 is placed on the ridge or road. , feed the matted seedlings with soil to the seedling platform 51 of the seedling planting section 4 in the manner described above, place the seedling boxes N with raised seedlings on the left and right spare seedling loading devices 38, and let the worker who is on the ridge or road Empty seedling boxes N placed on return rails 71a, 71b, 71c communicating in the front-rear direction are slid forward, pulled out from the front end, and placed on a ridge or road.

Furthermore, if the amount of fertilizer in the fertilizer hopper 60 of the fertilizer applicator 5 is low, the fertilizer is also supplied to the fertilizer hopper 60.

When the rice planting work in the field is completed, the machine is taken out of the field onto a ridge or road and moved to the next field or to a hangar such as a barn.

When moving the machine on the ridge or road, the operator operates the operation switch of the electric motor M to move the left and right reserve seedling loading devices 38 to the first, second, and third reserve seedling loading stands 38a, 38b, and 38c. are arranged in three rows, top and bottom. The return rails 71a, 71b, and 71c fit into the cutout grooves 74 formed in the seedling box mounting surfaces 73 of the first preliminary seedling mounting table 38a, the second preliminary seedling loading table 38b, and the third preliminary seedling loading table 38c. It is switched to the storage state (b) in which it is stored flush with the seedling box mounting surface 73.

Therefore, since the left and right spare seedling loading devices 38 are arranged in three stages (upper and lower), they do not protrude toward the front of the machine, and the return rails 71a, 71b, 71c are connected to the first preliminary seedling loading table 38a, the second preliminary seedling loading table 38b, and the return rails 71a, 71b, 71c. Since the third preliminary seedling stand 38c is in the stored state (b) in which it does not protrude outward, it does not protrude to the left and right sides of the body, allowing safe travel on ridges and roads.

In addition, the return rails 71a, 71b, and 71c are formed on the seedling box mounting surface 73 of the first preliminary seedling loading table 38a, the second preliminary seedling loading table 38b, and the third preliminary seedling loading table 38c in the stored state (b). Since they fit into the notch grooves 74 and are housed flush with the seedling box mounting surface 73, the first preliminary seedling loading table 38a, the second preliminary seedling loading table 38b, and the third preliminary seedling loading table 38c are When the seedling box N is placed on the seedling box mounting surface 73, the return rails 71a, 71b, 71c in the stored state (b) do not become resistance and the seedling box N can be placed smoothly.

<Other embodiments>
(1) FIG. 8 shows a second embodiment of return rails 71a, 71b, and 71c.

That is, when the return rails 71a, 71b, and 71c are placed in the seedling box guiding state (A) in which they stand up on the outside of the first preliminary seedling platform 38a, the second preliminary seedling platform 38b, and the third preliminary seedling platform 38c. Guide rollers 78 for receiving and smoothly guiding the empty seedling boxes N placed on the return rails 71a, 71b, 71c are rotatably provided at the portions of the return rails 71a, 71b, 71c that receive the seedling boxes N.

Therefore, when an empty seedling box N is placed on the return rails 71a, 71b, 71c, the guide rollers 78 of the return rails 71a, 71b, 71c can receive the empty seedling box N and rotate freely in the moving direction. , the empty seedling box N can be stably and smoothly slid.

2 Traveling vehicle body 4 Seedling planting section 38 Spare seedling loading device 38a Spare seedling loading platform 38b Spare seedling loading platform 38c Spare seedling loading platform 71a Seedling box recovery device (return rail)
71b Seedling box collection device (return rail)
71c Seedling box collection device (return rail)
73 Seedling box placement surface 74 Notch portion (notch groove)
N Seedling box (a) Seedling box guiding state (b) Storing state

Claims (5)

In a riding-type seedling transplanter equipped with a preliminary seedling loading device (38) on the front side of the traveling vehicle body (2) and a seedling planting section (4) at the rear, the outside of the preliminary seedling loading device (38) A seedling box collecting device (71a, 71b, 71c) for sliding an empty seedling box (N) is provided, and the seedling box collecting device (71a, 71b, 71c) is located outside the preliminary seedling loading device (38). The present invention is characterized in that the empty seedling box (N) can be freely switched between a movable seedling box guiding state (a) and a storage state where the empty seedling box (N) is stored inside the preliminary seedling loading device (38). A riding-type seedling transplanter. From the state in which the plurality of preliminary seedling loading tables (38a, 38b, 38c) of the preliminary seedling loading device (38) are arranged vertically, the plurality of preliminary seedling loading tables (38a, 38b, 38c) are arranged on a plane in the longitudinal direction of the machine. When the state is switched to the state shown in FIG. The riding type according to claim 1, characterized in that when the seedling box is in the seedling box guiding action state (a), it communicates in the front and rear direction and the empty seedling box (N) can be slid from the rear toward the front. Seedling transplanter. When the seedling box collecting device (71a, 71b, 71c) is positioned outside the preliminary seedling loading device (38) and the empty seedling box (N) is in the movable seedling box guiding state (A), the seedling box The riding-type seedling transplanter according to claim 1 or 2, characterized in that the recovery device (71a, 71b, 71c) supports the empty seedling box (N) in an inclined posture toward the outside of the machine body. . When the seedling box collecting device (71a, 71b, 71c) is in the stored state (b), it fits into the notch (74) formed in the seedling box mounting surface (73) of the preliminary seedling mounting device (38) and removes the seedling box. The riding-type seedling transplanter according to claim 1 or 2, wherein the riding-type seedling transplanter is housed flush with the mounting surface (73). When the seedling box collecting device (71a, 71b, 71c) is in the stored state (b), it fits into the notch (74) formed in the seedling box mounting surface (73) of the preliminary seedling mounting device (38) and removes the seedling box. The riding-type seedling transplanter according to claim 3, wherein the riding-type seedling transplanter is housed flush with the mounting surface (73).