JP6737134B2 - Work vehicle - Google Patents

Description

The present invention relates to a work vehicle such as a seedling transplanter in which a planting device for planting seedlings in a field is connected to a rear portion of a vehicle body, and belongs to the technical field of agricultural machinery.

As an example of a conventional work vehicle, as a seedling transplanter, a seedling tray made of resin, in which a large number of potted seedlings that have been raised are arranged in the vertical and horizontal directions, is supplied, and a planting device that takes out the pot seedlings from the seedling tray and implants them in a field is provided. A configuration in which it is connected to a rear portion of a vehicle body is known (for example, see Patent Document 1).

Further, in the above-mentioned conventional seedling transplanting machine, the empty seedling tray after all pot seedlings have been taken out from the seedling tray is formed of a rod-like member provided from the rear end of the tray transport path to the lower front side. It is configured to be carried out to the storage case.

JP, 2016-101129, A

However, according to the above conventional configuration, when the empty seedling tray is pushed forward from the rear end of the tray transport path, the front end is not provided because the rail members that support the left and right ends of the seedling tray are not provided. It greatly hangs down, hits the bottom of the seedling raising pot of the seedling tray already stored in the storage case, and pushes the seedling tray forward, so the seedling trays stored in the storage case are offset from each other, and they can be neatly aligned and stacked. There was a problem that I could not do it.

In addition, there is a problem that it is not possible to grasp the number of seedling trays used because they cannot be neatly arranged and stacked.

In view of such problems of the conventional work vehicle described above, an object of the present invention is to provide a work vehicle in which the seedling trays are more neatly aligned and stacked as compared with the conventional work vehicle, and the number of seedling trays used can be managed.

In order to solve the above-mentioned problems, the invention according to claim 1 relates to a traveling vehicle body (2) and a seedling tray (50) which is connected to a rear portion of the traveling vehicle body (2) and in which pot seedlings are arranged, to the pot seedlings. A planting device (200) for taking out and planting in a field, the planting device (200), wherein the planting device (200) sequentially supplies the seedling trays (50) from an upstream side of a transport path. The traveling vehicle body includes a seedling tray transporting device (210) that transports the seedlings toward the downstream side, and a collecting device (300) that sequentially collects the seedling trays (50) sent from the end of the transporting path. (2) A fertilizer application device (40) is provided on the upper rear side, a pilot seat (10) is provided on the traveling vehicle body (2), and a steering handle (11) for steering operation is provided in front of the pilot seat (10). The front side of the steering handle (11) is covered with a front cover (12), and floor steps (14) are provided on the left and right sides below the front cover (12). 300), a seedling tray accommodating portion (350) for accommodating the guided seedling tray (50), and a guide member (330L) for dropping the seedling tray (50) into the seedling tray accommodating portion (350). 330R), a counter device (352) for counting the number of seedling trays (50) is provided in the seedling tray accommodating portion (350), and an information processing device (351) is detachably attached to the traveling vehicle body (2). The information processing device (351) forms a map based on the detection of the counter device (352) on the number of sheets when the seedling tray accommodating portion (350) is expired, and the guide members (330L, 330R) a first posture capable supporting the seedling tray (50), and a second position which can not support said seedling tray (50), a configuration that can be taken selectively, the front left and right of the front cover (12) From the floor steps (14) on both sides, there is provided a frame (400) arranged above the cockpit (10) and in front of the fertilizer application device (40) and on the rear side of the cockpit (10). 400) on the rear side, above the fertilizer application device (40), a preliminary mounting table (420) having a vertically rotatable pivot shaft portion (421) is arranged. It is a working vehicle.

In the invention of claim 2, the action member (334, 334) for switching between the first posture and the second posture is configured as the guide member (330L, 330R), and the seedling raising at the left and right ends of the seedling tray (50). While the outer surface of the pot (51) is in contact with the acting member (334), the first posture is taken and the outer surfaces of the seedling raising pots (51) at the left and right ends of the seedling tray (50) are the same. while acting member (334, 334) not in contact with, the second posture DOO is, the above the frame of the steering wheel (11) (400), GPS receiving antenna (410) is seated The work vehicle according to claim 1, wherein:

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According to the first aspect of the present invention, the number of seedling trays (50) counted by the counter device (352) is stored in the information processing device (351), and a map is formed based on the number to use the seedling tray. By knowing the number of sheets, work efficiency in the next year will be improved.
Further, the seedling trays (50) can be aligned and stacked in the seedling tray accommodating portion (350).
Further, the preliminary loading table (420) can be used as a loading table for loading the preliminary fertilizer or as a collection table for the empty seedling tray (50), and when it is not used, it cannot be turned upside down. In addition, a fertilizer bag can be placed on the preliminary mounting table (420) to supply the fertilizer to the fertilizer application device (40).

Further, according to the present invention described in claim 2, in addition to the effect of the invention of claim 1, since the front end portion of the seedling tray (50) is unlikely to hang down, it is already stored in the seedling tray storage portion (350). Since it is difficult to push the existing seedling tray (50) forward, the falling of the seedling tray (50) from the seedling tray accommodating portion (350) can be suppressed.

Further, the seedling trays (50) can be aligned and stacked in the seedling tray accommodating portion (350).

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Side view of a riding rice transplanter according to an embodiment of the present invention Plan view of the 8-row planting rice transplanter shown in Fig. 1. An enlarged side view of the rear part of the riding rice transplanter of the present embodiment shown in FIG. (A): a bottom view of a part of the seedling tray in the riding rice transplanter of the present embodiment, (b): a side view of a part of the seedling tray viewed from the short side A schematic side view showing a state of a seedling tray being conveyed along a conveyance path curved in a substantially U shape in a side view in the riding rice transplanter of the present embodiment. (A): Schematic plan view showing a state where the L-shaped rail member of the left guide member in the riding rice transplanter of the present embodiment is in the second posture, (b): L-shape of the left guide member -Shaped rail member is in a second posture, a schematic left side view, (c): a schematic rear view showing a state in which the L-shaped rail member of the left guide member is in a second posture. (A): A schematic plan view showing a state where the L-shaped rail member of the left guide member in the riding rice transplanter of the present embodiment is in the first posture, (b): L-shape of the left guide member Schematic left side view showing a state in which the linear rail member is in the first posture (A): The whole seedling tray in the riding rice transplanter of the present embodiment is conveyed to the pair of left and right guide members, and the L-shaped rail members of the pair of left and right guide members are changed from the first posture to the second posture. Schematic plan view showing the state immediately before the transition, (b): schematic left side view of the state shown in FIG. 8(a), (c): schematic rear view of the state shown in FIG. 8(a) (A): Schematic partial view showing an end of the L-shaped rail member, (b): Plan view of a guide roll for guiding the seedling tray to the L-shaped rail member. (A): Schematic partial plan view of the riding rice transplanter for explaining the automatic straight-moving antenna mounting frame, (b): Schematic partial side view of the riding rice transplanter for explaining the automatic straight-moving antenna mounting frame (A): A schematic partial plan view of a riding rice transplanter for explaining a second automatic rectilinear antenna mounting frame, (b): A schematic partial side view of a riding rice transplanter for explaining a second automatic rectilinear antenna mounting frame Figure

Hereinafter, a riding rice transplanter for eight-row planting according to an embodiment of a work vehicle of the present invention will be described with reference to the drawings.

FIG. 1 is a side view of a riding rice transplanter according to the present embodiment.

FIG. 2 is a plan view of the riding rice transplanter of the present embodiment shown in FIG.

Further, FIG. 3 is an enlarged side view of the rear part of the riding rice transplanter of the present embodiment shown in FIG.

As shown in FIG. 1, in the riding rice transplanter 1 of the present embodiment, the planting device 200 is mounted on the rear side of the traveling vehicle body 2 via the elevating link device 30 so that the planting apparatus 200 can be moved up and down. A body portion of the device 40 is provided.

The riding rice transplanter 1 is a four-wheel drive type working vehicle in which a traveling vehicle body 2 includes a pair of left and right front wheels 3 and a pair of left and right rear wheels 4.

Further, the engine 5 is mounted on the main frame 6, and the rotational power of the engine 5 is transmitted via an HST (hydrostatic stepless transmission) or the like to an auxiliary transmission mechanism (not shown) in the transmission case 7. Etc. The rotational power that has been changed in speed in the transmission case 7 is separately output as traveling power used for the traveling system and the like and external extraction power used for the planting device 200 and the like.

A part of the traveling power is transmitted to the pair of left and right front wheel final cases 8 to drive the front wheels 3, and the rest is transmitted to the left and right rear wheel gear cases 9L and 9R to drive the rear wheels 4. Further, a part of the rotational power transmitted to the left rear wheel gear case 9L is transmitted to the leveling rotor drive shaft 101 to rotate the leveling rotor 100 described later (see FIG. 3).

The upper part of the engine 5 is covered with an engine cover 13, and the cockpit 10 is installed on the engine cover 13. A steering handle 11 for steering the front wheels 3 is provided in front of the cockpit 10, and the front side thereof is covered with a front cover 12. In addition, horizontal floor steps 14 are provided on the left and right sides of the lower ends of the engine cover 13 and the front cover 12 so that the seedling tray, fertilizer and the like can be easily replenished.

Further, on the left and right sides of the steering handle 11 and the front cover 12, there are arranged supplementary seedling mounting frames 15 on which a large number of seedling trays 50 are stacked. A configuration in which the operator can take out the seedling tray 50 stored in advance and carry it to the starting end (upstream side) of the conveyance path 201 of the planting apparatus 200 connected to the rear portion while taking out the seedling tray 50 and sequentially replenishing it. Is.

The transport path 201 is configured to sequentially transport one seedling tray 50 per two planting rows and supply pot seedlings to each seedling planting section 220 described later to plant two rows. Therefore, in the riding rice transplanter 1 for eight-row planting, in order to realize multi-row planting, the transport paths 201, the seedling planting parts 220, and the like are provided in the lateral direction in fours in a plan view (FIG. 2). reference).

That is, the above-described planting apparatus 200 includes (1) a seedling tray transport device 210 that transports the successively supplied seedling trays 50 from the upstream side to the downstream side of the transport path 201, and (2) a transport path 201. The seedling planting section 220, which is provided on the way and takes out the potted seedlings from the seedling tray 50 to be transported and planted in the field, and (3) the seedling planting section 220 takes out the pot seedlings and sends them out from the end portion of the transport path. A collection device 300 for sequentially collecting the empty seedling trays 50 is provided for each of the two planting articles.

Here, the configuration of the seedling tray 50 will be described mainly with reference to FIGS. 4(a) and 4(b).

FIG. 4A is a bottom view of a part of the seedling tray 50, and FIG. 4B is a side view of a part of the seedling tray 50 seen from the short side.

That is, as shown in FIGS. 4(a) and 4(b), the seedling tray 50 is a synthetic resin flexible, flat surface formed by arranging a large number of seedling raising pots 51 in the vertical and horizontal directions. It is a rectangular plate-shaped member when viewed, and can be curved in a substantially U shape in a side view on the transport path (see FIG. 5 ). FIG. 5: is a schematic side view which shows the state of the seedling tray 50 currently conveyed along the conveyance path 201 curved in the substantially U shape by side view.

The seedling raising pot 51 has a circular opening 51a on the back side of FIG. 4(a) and a bottom portion 51b protruding on the front side of FIG. 4(a), and has a space for raising pot seedlings inside. It is a pot-shaped member. The bottom portion 51b has a push pin (not shown) provided in the seedling planting portion 220 for pushing out pot seedlings in the seedling raising pot 51 so that it can be inserted from the bottom portion 51b side toward the opening 51a side. A slit hole 51b1 having a predetermined shape is formed.

The planting work is performed by supplying the seedling tray 50 in the state where the pot seedlings have been raised in the seedling raising pot 51 to the transport path 201 of the planting apparatus 200.

In addition, as shown in FIG. 4A, the longitudinal direction of the seedling tray 50 corresponds to the transport direction (see arrow A in FIG. 4A), and both left and right edges of the width of the seedling tray 50 in the lateral direction. In the portion, substantially square feed hole portions 52 are formed at regular intervals along the long sides 53L and 53R on both the left and right sides.

The feeding hook 211 (see FIG. 5) of the seedling tray transport device 210 described above is engaged with the feed hole portion 52 and moves up and down at a predetermined timing (see arrow B in FIG. 5) to transport the seedling tray 50. Is intermittently performed for each row of the seedling raising pots 51.

Moreover, the above-mentioned seedling planting part 220 is a push-out pin (not shown) for simultaneously inserting the seedling raising pots 51 in one horizontal row of the seedling tray 50 from the bottom portion 51b side to take out pot seedlings, Among pot seedlings for one row in a row that are pushed out by the push pin, there is a seedling feeding belt (not shown) that conveys the potted seedlings in the right half to the right and the pot seedlings in the left half to the left. Then, by rotating the planting claws 221 rotatably arranged below the left and right sides of the seedling feeding belt, the pot seedlings conveyed to the left and right sides by the seedling feeding belt are sequentially planted in the field. is there.

A float 230 is provided below each seedling planting section 220 (see FIG. 2 ). These floats 230 slide while leveling the mud surface, and seedlings are planted by the planting claws 221 on the leveling marks.

In addition, the above-described recovery device 300 is arranged below the transport path 201a on the upstream side of the seedling tray transport device 210 (see FIGS. 1 and 3), and is delivered from the end portion of the transport path 210b on the downstream side. The seedling trays 50 in an empty state are sequentially collected (see FIG. 5). The recovery device 300 will be further described later.

Here, the configuration of the downstream transport path 201b will be described with reference to FIG.

That is, as shown in FIG. 5, the transport path 201b on the downstream side corresponds to the center position of the lateral width of the seedling tray 50 that supports the transported seedling tray 50 by contacting the surface on the opening 51a side. The transport support bars 212 arranged at three places near the left and right sides and the guide bar insertion space 54 provided in the longitudinal direction at the center position of the left and right width of the bottom 51b side surface of the seedling tray 50 (see FIG. 4 ( a) and a conveyance guide bar 213 arranged so as to be insertable in FIG. 4B).

The transport support bar 212 and the transport guide bar 213 are arranged substantially parallel to each other in a state of keeping a predetermined distance in a side view, and in order to guide the seedling tray 50 to the collection device 300 side, the collection device 300 side. It is curved to the front and diagonally upward. Further, the terminal end portion 212b of the transport support bar 212 is fixed to the recovery device support stay 310 (see FIGS. 3 and 5) whose one end side is fixed to the upstream transport path 201a, and the terminal end portion of the transport guide bar 213 is fixed. 213b is fixed to a conveyance guide bar support stay 214 (see FIG. 5) whose one end side is fixed to the upstream conveyance path 201a.

The traveling vehicle body 2 of the present embodiment is an example of the traveling vehicle body of the present invention. Further, the seedling tray 50 of the present embodiment corresponds to an example of the seedling tray of the present invention. The planting apparatus 200 of the present embodiment corresponds to an example of the planting apparatus of the present invention, and the seedling tray transfer device 210 of the present embodiment corresponds to an example of the seedling tray transfer device of the present invention. Moreover, the seedling planting part 220 of this Embodiment corresponds to an example of the seedling planting part of this invention, and the collection|recovery apparatus 300 of this Embodiment corresponds to an example of the collection|recovery apparatus of this invention.

Next, the recovery device 300 arranged on the rear end side of the downstream transport path 201b will be further described mainly with reference to FIGS.

As shown in FIG. 5, the recovery device 300 includes (1) a large number of transport rollers that engage with the openings 51a of the seedling tray 50 that are delivered from the terminal end portion 212b of the transport support bar 212 of the downstream transport path 201b. 320 is arranged on the surface of the cylindrical roller member, and intermittently rotationally driven in synchronization with the vertical movement timing of the feeding hook 211 to convey the empty seedling tray 50 to the collecting device 300 side. The transport roller 320 rotatably arranged on the front side of the support stay 310 and (2) the seedling tray that has come to the terminal end portion 212b of the transport support bar 212 of the downstream transport path 201b is guided forward from the terminal end portion 212b. , A pair of left and right guide members 330L, 330R (which are configured to be able to drop the guided seedling tray 50 at a predetermined timing and have a substantially T-shaped cross section in a direction orthogonal to the longitudinal direction). 6(a) to 6(c)), and (3) a pair of left and right guide members 330L and 330R, which is a pair of left and right support members rotatably supporting the front side in the longitudinal direction of the long plate shape. Guide member front side support stays 341L and 341R, and (4) a pair of left and right guide members rearwardly rotatably supporting the rear side of the longitudinal plate-shaped both ends of the pair of left and right guide members 330L and 330R. Supporting stays 342L, 342R, and (5) seedling tray storage basket 350 formed of a wire having a circular cross section for receiving and storing seedling trays falling from the pair of left and right guide members 330L, 330R. There is.

The upper ends of the pair of left and right guide member front support stays 341L, 341R are fixed to the lower surface of the upstream transport path 201a of the seedling tray transport device 210, and the pair of left and right guide member rear support stays 342L, 342R are provided. Is fixed to the recovery device support stay 310 (see FIGS. 3 and 5).

Further, in each of the pair of left and right guide members 330L and 330R, an L-shaped rail member 332 having a substantially L-shaped cross section in a direction orthogonal to the longitudinal direction is welded and fixed to a rectangular plate member 331, and the flat member 331 is formed. A rod-shaped member 333 having a circular cross section, which is longer than the length of the long side, is welded and fixed to the end of the long side on one side (see FIGS. 6A to 6C ). Of the both ends of the rod member 333, the front end is rotatably supported by the guide member front support stay 341L (341R), and the rear end is the guide member rear support stay 342L ( 342R) rotatably supported.

In addition, the L-shaped rail member 332 is bent at a right angle to the first rail portion 332a and the first rail portion 332a, which are welded and fixed to the flat plate member 331 among the portions having a substantially L-shaped cross section. And a second rail portion 332b (see FIGS. 6A to 6C). In addition, at the rear end of the second rail portion 332b, a curved action member 334 that once droops in an arc and steeply falls in a side view, and then rises in a gentle curve toward the rear, conveys the seedling tray 50. It is formed so as to project to the road side (see FIGS. 6A to 6C).

Each of the L-shaped rail members 332 of the pair of left and right guide members 330L and 330R selects a first posture that can support the empty seedling tray 50 and a second posture that cannot support the empty seedling tray 50. This is a configuration that can be taken as a target.

When the L-shaped rail member 332 of each of the pair of left and right guide members 330L and 330R is in the first posture, the first rail portion 332a has long sides on both left and right sides of the opening 51a side surface of the seedling tray 50. The long side ends 53a along the 53L and 53R are supported from below, and the second rail portion 332b has a length along the long sides 53L and 53R on both left and right sides of the surface of the seedling tray 50 on the opening 51a side. The seedling tray 50 is guided forward by supporting the side edge portions 53b from the left and right sides.

In addition, each L-shaped rail member 332 of the pair of left and right guide members 330L and 330R receives no pressing force from the seedling tray 50, and the L-shaped rail members 332 shown in FIGS. 6(a) to 6(c). Holds 2 postures.

6A is a schematic plan view showing a state in which the L-shaped rail member 332 of the left guide member 330L is in the second posture, and FIG. 6B is a schematic plan view of the left guide member 330L. FIG. 6C is a schematic left side view showing a state in which the L-shaped rail member 332 is in the second posture, and in FIG. 6C, the L-shaped rail member 332 of the left guide member 330L is in the second posture. It is a schematic rear view which shows a state.

7(a) is a schematic plan view showing a state where the L-shaped rail member 332 of the left guide member 330L is in the first posture, and FIG. 7(b) is a left guide member 330L. FIG. 7 is a schematic left side view showing a state in which the L-shaped rail member 332 of FIG.

The configuration including the pair of left and right guide members 330L and 330R and the curved action member 334 of the present embodiment is an example of the guide portion of the present invention, and the seedling tray storage basket 350 of the present embodiment is It corresponds to an example of the seedling tray accommodating portion of the invention.

Further, the L-shaped rail member 332 of the present embodiment corresponds to an example of the rail member of the present invention, and the curved action member 334 of the present embodiment corresponds to an example of the action member of the present invention. Further, the torque spring 335 of the present embodiment corresponds to an example of the biasing member of the present invention.

The first posture of the L-shaped rail member 332 of the present embodiment is an example of the first posture of the rail member of the present invention, and the second posture of the L-shaped rail member 332 of the present embodiment is It corresponds to an example of a second posture of the rail member of the invention.

Next, the operation of the recovery device 300 will be described mainly with reference to FIGS.

FIG. 8A shows that the whole seedling tray 50 is conveyed to the pair of left and right guide members 330L and 330R, and the L-shaped rail members 332 of the left and right pair of guide members 330L and 330R are changed from the first posture to the second posture. 8B is a schematic plan view showing a state immediately before shifting to the posture, FIG. 8B is a schematic left side view of the state shown in FIG. 8A, and FIG. It is a schematic rear view of the state shown in FIG.

When the seedling tray 50 is transported to the downstream side by the vertical movement of the feeding hook 211 (see FIG. 5), and the left and right end portions 55 of the seedling tray 50 approach the terminal end portions 212b of the transport support bars 212, As shown in FIG. 6( b ), the tip portion 55 abuts on the rear end lower surface 334 a of the curved action member 334.

Then, the seedling tray 50 is pushed further downstream (see the direction of arrow A in FIG. 6A and FIG. 6B), whereby the curved action member 334 is pressed in the direction of arrow A, and the rod-shaped member. While rotating in the direction of arrow C (see FIG. 6C) using 333 as the rotation axis, the first rail portion 332a and the second rail portion 332b also use the rod-shaped member 333 as the rotation axis, and the direction of arrow C ( As shown in FIG. 6C, the rotation starts.

6(a) to 6(c), a state immediately before the tip portions 55 on both the left and right sides of the seedling tray 50 contact the curved action member 334, that is, the first rail portion 332a and the second rail portion. 332b shows a state immediately before starting rotation, in which the curved action member 334 is in the non-retracted posture, and the first rail portion 332a and the second rail portion 332b are in the second posture. I am taking it.

That is, the plane portions of the left and right first rail portions 332a in this second posture are in a substantially vertical state, and are not in a posture capable of supporting the seedling tray 50 from below.

After that, the seedling tray 50 is further pushed to the downstream side, so that the gently curved root portions 334b of the curved action member 334 are always in contact with the outer surfaces of the seedling raising pots 51 at the left and right ends of the seedling tray 50 ( 7A and 7B, refer to the direction of arrow A). In this manner, by constantly contacting, the curved action member 334 is further rotated in the direction of arrow C (see FIG. 6C) with the rod-shaped member 333 as the rotation axis in the same manner as above, and the retracted posture. (See FIGS. 7(a) and 7(b)), the first rail portion 332a and the second rail portion 332b shift from the second posture to the first posture and maintain the first posture. To do.

That is, the plane portions of the left and right first rail portions 332a in the first posture are in a state of being rotated by approximately 90° in the arrow C direction with the rod-shaped member 333 as the rotation center from the state of the second posture, The seedling tray 50 is in a posture in which it can be supported from below, and the first posture is maintained.

Then, the seedling tray 50 sent out from the terminal end portion 212b of the transport support bar 212 of the transport path 201b on the downstream side is transported by the transport rollers toward the pair of left and right L-shaped rail members 332 which have already taken the first posture. It is intermittently conveyed by 320 (see FIG. 5) (see FIGS. 7A and 7B).

Since the pair of left and right L-shaped rail members 332 are in the first posture, the first rail portion 332a is the long side end portion 53a of the seedling tray 50 (FIGS. 4A and 4B). 7(b)) from below, and the second rail portion 332b allows the long edge portion 53b of the seedling tray 50 (see FIGS. 4(a), 4(b), and 7(a)). Is supported from the left and right sides to guide the seedling tray 50 forward.

When the whole seedling tray 50 is conveyed to the pair of left and right guide members 330L and 330R, the outer surface of the seedling raising pot 51 at the left and right ends of the seedling tray 50 and the curved action member 334 form a gentle curve. Since the contact state with the root portion 334b (see FIG. 7(a)) is released, the curved action member 334 cannot keep the L-shaped rail member 332 in the first posture and the seedling tray. Due to the action of the self-weight of 50 and the above-described rotational torque (biasing force) of the torque spring 335, the L-shaped rail member 332 rotates in the direction opposite to the arrow C direction shown in FIG. 6C. , The second posture is instantly changed from the first posture.

As a result, the seedling trays 50 in the empty state start dropping almost simultaneously from the front end portion to the rear end portion and are neatly aligned vertically in the seedling tray storage basket 350.

That is, with the above configuration, since the front end portion of the seedling tray 50 is less likely to hang down than in the conventional case, it is difficult to push out the seedling tray 50 already stored in the seedling tray storage basket 350. The fall of the tray 50 can be suppressed.

In addition, since it is difficult to push out the seedling trays 50 already stored in the seedling tray storage basket 350 to the front, after the seedling trays 50 are taken out from the seedling tray storage basket 350, the seedling trays 50 stacked in a state of being displaced from each other are removed. There is no need to arrange the positions and arrange them neatly.

Further, by providing the torque spring 335 that gives the rotational torque (biasing force) in the direction in which the L-shaped rail member 332 assumes the second posture, the L-shaped rail member 332 changes from the first posture to the second posture. Since the change is assisted, the rotating operation is stable even if, for example, a rotating portion that rotates when changing the attitude of the L-shaped rail member 332 or mud or the like adheres to the seedling tray 50.

As is clear from the above description, in the present embodiment, while the outer surfaces of the seedling raising pots 51 at the left and right ends of the seedling tray 50 are in contact with the pair of left and right curved action members 334, the respective curves are curved. 7A and 7B, the shape acting member 334 is in a retracted posture, and both end portions 55 on the left and right sides of the seedling tray 50 and the outer surface of the seedling raising pot 51 on both the left and right ends are While not in contact with the pair of left and right curved action members 334, each curved action member 334 assumes a non-retracted posture (see FIGS. 6A to 6C). Then, while the pair of left and right curved action members 334 is in the retracted posture, the pair of left and right L-shaped rail members 332 continues to take the first posture, and the pair of left and right curved action members 334 is in the non-retracted posture. Then, the pair of left and right L-shaped rail members 332 assume the second posture.

The retracted posture of the curved action member 334 of this embodiment is an example of the retracted posture of the action member of the invention, and the non-retracted posture of the curved action member 334 of this embodiment is the action member of the invention. This is an example of the non-evacuation posture.

Further, since the GPS device 353, the information processing device 351, and the counter device 352 can record and display the number of the seedling trays 50 used for each field on the information processing device 351, it is necessary at the time of sowing work in the next year. Since it is sufficient to sow the seedling trays 50 for each portion, the work efficiency is improved and the seedling cost can be reduced.

In addition, when the counter device 352 detects the number of the seedling tray accommodating section 350 accommodating the seedling tray 50 that has expired, a mark is placed on the map of the information processing device 351, and when the aircraft approaches the position with the year mark, the operator Will be collected.

As a result, the collection position can be predicted, so that work efficiency can be improved.

Moreover, as the vehicle speed increases, the speed at which the seedling tray 50 is transported also increases. Accordingly, by providing the regulating member 336 so that the seedling tray 50 does not protrude from the pair of left and right L-shaped rail members 332, high-speed planting can be supported.

The regulating member 336 has a length adjustable structure, and can be adjusted by, for example, a bolt shown in FIG.

In addition, as shown in FIG. 9(b), the seedling tray 50 has a deformed shape of the transport roller 320 that guides it to the collection device 300, and the inner diameter of the roller is smaller than the outer diameter of the roller. Is prevented, and the load on the pair of left and right L-shaped rail members 332 is reduced.

The riding rice transplanter 1 according to the present embodiment may be provided with an automatic rectilinear antenna mounting frame 400 as shown in FIGS. 10(a) and 10(b). As shown in FIGS. 10( a) and 10 (b ), the automatic rectilinear antenna mounting frame 400 is provided on the front side of the front cover 12 on both left and right floor steps 14 and beyond the upper part of the cockpit 10 to apply the fertilizer application device 40. The GPS receiving antenna 410 is mounted on the front side of the hopper and on the left and right floor portions on the rear side of the cockpit 10 and above the steering handle 11. Further, on the back side of the automatic rectilinear antenna mounting frame 400, a preliminary mounting table 420 that can be rotated up and down is provided above the hopper of the fertilizer application device 40. (Not shown). The preliminary placing table 420 can be used as a table for collecting the preliminary fertilizer or as a collecting table for the empty seedling tray 50, and when it is not used, it is automatically rotated upward by the action of the torque spring so as not to interfere.

Thereby, the work efficiency is improved, and the fertilizer bag can be placed on the preliminary mounting table 420 and the fertilizer can be supplied into the hopper of the fertilizer application device 40.

Further, as shown in FIGS. 10A and 10B, the automatic rectilinear antenna mounting frame 400 is provided with a rotating shaft member 430 provided in the left-right direction at an obliquely upper front corner of the cockpit 10. A transparent visor 440 is rotatably arranged as a fulcrum of rotation. The visor 440 is configured to be rotatable at two positions on the front side and the upper side of the head of the operator seated in the cockpit 10 and fixed at each position.

As a result, the visor 440 provided on the automatic rectilinear antenna mounting frame 400 can be easily switched between the front side and the upper side of the head, and can be fixed at each position, so that it is suitable for windproof and rainproof purposes. Can be used.

FIG. 10A is a schematic partial plan view of the riding rice transplanter 1 for explaining the automatic rectilinear antenna mounting frame 400, and FIG. 10B is a schematic partial plan view of the automatic rectilinear antenna mounting frame 400. It is a schematic partial side view of the riding rice transplanter 1.

Further, the riding rice transplanter 1 of the present embodiment may be configured to have a second automatic rectilinear antenna mounting frame 500 as shown in FIGS. 11(a) and 11(b). As shown in FIGS. 11( a) and 11 (b ), the second automatic rectilinear antenna mounting frame 500 is located above and below the cockpit 10 from the water tank frame 42 on which the water tanks 41 arranged on the left and right sides of the aircraft are placed. It is arranged so as to straddle the width direction, and a GPS receiving antenna 410 is attached above the cockpit 10. In addition, on the left and right side surfaces of the second automatic rectilinear antenna mounting frame 500, it is rotatable above the water tank 41 in the arrow D direction and the arrow E direction (see FIG. 11A) in plan view. The second preliminary mounting table 520 is arranged. The rotation shaft of the second preliminary mounting table 520 is provided on the frame 501 on the rear side of the second automatic rectilinear antenna mounting frame 500.

Since the second preliminary mounting table 520 is provided above the water tank 41, the fertilizer bag and the water tank at the time of supply can be mounted on the second preliminary mounting table 520, and the fertilizer and water can be easily replenished. , Work efficiency is improved.

FIG. 11( a) is a schematic partial plan view of the riding rice transplanter 1 for explaining the second automatic rectilinear antenna mounting frame 500, and FIG. 11( b) shows the second automatic rectilinear antenna mounting frame 500. It is a schematic partial front view of the riding rice transplanter 1 for explaining.

INDUSTRIAL APPLICABILITY The work vehicle according to the present invention allows the seedling trays to be lined up more neatly and stacked as compared with the conventional one, and is useful as a work vehicle for improving workability in the next year by controlling the number of used seedling trays. ..

1 Passenger rice transplanter 2 Running vehicle 3 Front wheel 4 Rear wheel 6 Main frame 7 Transmission case 8 Front wheel final case 9L Left rear wheel gear case 9R Right rear wheel gear case 10 Pilot seat 11 Steering handle 30 Lifting link device 40 Fertilizer 50 Seedling tray 200 Planting Attaching device 210 Seedling tray transport device 220 Seedling planting part 230 Float 300 Collecting device 320 Transport roller 330L Left guide member 330R Right guide member 334 Curved acting member 336 Control device 350 Seedling tray storage basket (seedlet tray storage part)
351 Information processing device 352 Counter device 353 GPS device

Claims (2)

The running car body (2),
A work vehicle comprising: a planting device (200) which is connected to a rear part of the traveling vehicle body (2) and takes out the pot seedlings from a seedling tray (50) in which pot seedlings are arranged, and which is planted in a field.
The planting device (200) is
A seedling tray transfer device (210) for transferring the seedling trays (50) sequentially supplied from the upstream side to the downstream side of the transfer path;
And a collection device (300) for sequentially collecting the seedling trays (50) sent from the end of the transport path ,
A fertilizer application device (40) on the rear upper side of the traveling vehicle body (2), a pilot seat (10) on the traveling vehicle body (2), and a steering handle (11) for steering operation in front of the pilot seat (10). The front side of the steering handle (11) is covered with a front cover (12), and floor steps (14) are provided on the left and right sides below the front cover (12).
A seedling tray storage section (350) for storing the guided seedling tray (50) in the recovery device (300) and a guide for dropping the seedling tray (50) into the seedling tray storage section (350). Providing members (330L, 330R),
A counter device (352) for counting the number of seedling trays (50) is provided in the seedling tray accommodating portion (350),
An information processing device (351) is detachably attached to the traveling vehicle body (2),
The information processing device (351) forms a map of the number of expired sheets in the seedling tray accommodating portion (350) based on detection by the counter device (352).
The guide member (330L, 330R) includes a first posture capable supporting the seedling tray (50), and a second position which can not support said seedling tray (50), a configuration that can be taken selectively ,
The floor steps (14) on both the left and right sides of the front side of the front cover (12) are arranged above the cockpit (10) and in front of the fertilizer application device (40) and behind the cockpit (10). A stand (420) provided with a frame (400) and provided with a rotating shaft portion (421) that can be rotated up and down at a position on the rear side of the frame (400) and above the fertilizer application device (40). ) Is arranged , the work vehicle. The action member (334, 334) for switching between the first posture and the second posture is configured as the guide member (330L, 330R),
While the outer surfaces of the seedling raising pots (51) at the left and right ends of the seedling tray (50) are in contact with the acting member (334), the first posture is maintained and the left and right ends of the seedling tray (50) are kept. while the outer surface of the seedling pots (51) is not in contact with the acting member (334, 334), Ri preparative said second position, said above the frame of the steering wheel (11) (400), working vehicle according to claim 1 GPS receiving antenna (410) is characterized that you have been attached.

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