JP2017121218A - Riding rice planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a riding rice planting machine with a preliminary seedling container device provided in front of a handrail where the preliminary seedling container device is switchable between a first state of multiple preliminary seedling mounting tables arranged in the up-and-down direction of a traveling vehicle body and a second state of the multiple preliminary seedling mounting tables arranged in the longitudinal direction of the traveling vehicle body, in which the preliminary seedling container device is not made to come close to the vehicle body front side, or is not made to approach too much, and then a longitudinal direction length of the vehicle body of the upper end of the handrail can be lengthened.SOLUTION: A free space A is provided below an upper end 31 of a handrail 30. In a second state of a preliminary seedling container device 50, a rear end side 53r of a preliminary seedling mounting table 53 being the first from the rear of multiple preliminary seedling mounting tables 51, 52 and 53 gets into the free space A, and the upper end 31 and the rear end side 53r are overlapped in a plan view.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a traveling vehicle body having a riding-type driving unit, a seedling planting device connected to a rear portion of the traveling vehicle body so as to be able to move up and down, and upward from a vehicle body part on a lateral side of the driving unit. The present invention relates to a riding type rice transplanter provided with a handrail erected and a reserve seedling storage device provided in front of the handrail.

  In the above-described riding type rice transplanter, for example, as shown in Patent Document 1, a boarding operation unit, a side railing unit (corresponding to a handrail), a spare seedling placement device (corresponding to a spare seedling storage device) are provided, The seedling placement device is in a folded state where the preliminary seedling stand of the front movable frame and the preliminary seedling stand of the rear movable frame are folded over the preliminary seedling stand of the fixed frame, and the preliminary seedling stand of the front movable frame is deployed on the front side of the fixed frame. However, there are some which can be switched to a deployed state in which the spare seedling stand of the rear movable frame is deployed on the rear side of the fixed frame.

JP 2013-74841 A

  In the above-described riding type rice transplanter, the spare seedling storage device includes a plurality of spare seedling placement stands, and the plurality of preliminary seedling placement stands are arranged in the vertical direction of the traveling vehicle body, and the plurality of spare seedling placement stands are the traveling vehicle body. Whether the spare seedling storage device can be switched to the first state by storing the spare seedling storage device in the second state aligned in the front-rear direction, and a plurality of preliminary seedling platforms are arranged side by side in a plurality of stages. Alternatively, a plurality of preliminary seedlings can be accommodated side by side in a plurality of stages, and the spare seedling accommodation device can be switched to the second state to accommodate a plurality of preliminary seedlings in the longitudinal direction of the traveling vehicle body. It becomes possible.

  By adopting conventional technology, when switching between the first state and the second state of the spare seedling storage device is possible, the longer the vehicle body longitudinal length of the upper end portion that becomes the holding portion of the handrail, The preliminary seedling storage device is positioned more on the front side of the vehicle body. That is, when the preliminary seedling storage device is switched to the second state, it is necessary to prevent the first preliminary seedling placement table from hitting the handrail.

  The present invention provides a riding type rice transplanter that can increase the length of the upper end of a handrail in the vehicle front-rear direction without moving the preliminary seedling storage device toward the vehicle body front side or too much.

The riding rice transplanter according to the present invention is
A traveling vehicle body having a boarding type driving unit;
A seedling planting device coupled to the rear portion of the traveling vehicle body so as to be capable of moving up and down;
On the lateral side of the driving part, a handrail erected upward from the vehicle body part,
A preliminary seedling storage device provided in front of the handrail, and
The preliminary seedling storage device includes a plurality of preliminary seedling mounting bases, wherein the plurality of preliminary seedling mounting bases are arranged in the vertical direction of the traveling vehicle body, and the plurality of preliminary seedling mounting bases are arranged in front of and behind the traveling vehicle body. It can be switched to the second state aligned in the direction,
An empty space is provided below the upper end of the handrail,
In the second state of the reserve seedling storage device, a rear end side portion of the first reserve seedling placement table from the back among a plurality of the reserve seedling placement tables enters the empty space, and the upper end in plan view Riding type rice transplanter in which the part and the rear end side part overlap.

  According to this configuration, when the spare seedling storage device is switched to the second state, the rear end side portion of the first preliminary seedling placement table enters the empty space, so the length of the upper end portion of the handrail in the longitudinal direction of the vehicle body is increased. Even if the length is longer, the rear end side portion of the first preliminary seedling mounting table from the rear is not necessary even if the spare seedling storage device is moved closer to the front side of the vehicle body. By entering the empty space, it is possible to avoid the contact between the spare seedling placing table and the handrail.

  Accordingly, the length of the upper end of the handrail in the longitudinal direction of the vehicle body can be increased without bringing the spare seedling storage device toward the front side of the vehicle body, or even if the spare seedling storage device is switched to the second state. The handrail can be made easy to use while making the traveling vehicle body easy to operate, for example, because the seedling mounting table does not protrude forward from the traveling vehicle body so long.

  In the present invention, the first spare seedling placement table is stored in a spare seedling placement table main body, a use posture projecting backward from the preliminary seedling placement table main body, and an inward side of the preliminary seedling placement table main body. And an extended mounting table supported by the preliminary seedling mounting base body so that the posture can be changed over the stored storage posture, and the rear end side portion of the first preliminary seedling mounting table is an extended mounting of the use posture. It is preferable that it is formed by a mounting table.

  According to this configuration, when the spare seedling storage device is switched to the second state, the placement area of the first spare seedling placement table can be increased later by setting the extended placement stand to the use posture. This makes it easier to put and remove spare seedlings on the mounting table. As described above, the front-rear direction of the upper end portion of the handrail without moving the spare seedling storage device toward the front side of the traveling vehicle body or not so much while the mounting area of the spare seedling table can be increased. The length can be increased.

  In the present invention, it is preferable that, in the second state of the preliminary seedling storage device, the rear end side portion of the first preliminary seedling mounting table enters the entrance / exit of the operating unit.

  According to this configuration, when the reserve seedling storage device is switched to the second state, the entrance / exit is closed with a simple structure utilizing the rear end side of the first reserve seedling placement table as a closing member of the entrance / exit. Or narrow.

  In the present invention, the upper end portion of the handrail has a fixed portion fixed to a vehicle body portion, and a closed state in which the front end side portion closes the entrance / exit of the driving portion, extending forward from the fixed portion. It is preferable that a movable portion that can be switched to an open state in which the entrance / exit is opened is provided, and the empty space is formed below the movable portion in the closed state.

  According to this configuration, by closing the movable part, the entrance and exit can be closed or narrowed with a simple structure utilizing the movable part as a closing member for the entrance and exit.

  In the present invention, it is preferable that the movable portion is supported by the fixed portion so as to be able to swing and switch between the closed state and the open state.

  According to this configuration, the movable part can be easily switched between the closed state and the open state simply by swinging the movable part.

  In the present invention, in the closed state of the movable part, it is preferable that the front end side part of the movable part is supported by a column of the preliminary seedling storage device.

  According to this configuration, the movable portion can be firmly supported in a closed state with a simple structure in which the support of the preliminary seedling storage device is utilized as a member that supports the front end side portion of the movable portion.

It is a left view which shows the whole riding type rice transplanter in which the lower stage seedling accommodation apparatus is in a 2nd state. It is a left view which shows the whole riding type rice transplanter in which the lower stage seedling accommodation apparatus is in a 1st state. It is a top view which shows the whole riding type rice transplanter in which the lower stage seedling accommodation apparatus is in a 2nd state. It is a front view of a traveling vehicle body. It is a left view which shows the rear part of the reserve seedling accommodation apparatus of the lower left stage of a 2nd state. It is a front view which shows a rear guard. It is a perspective view which shows a rear guard. It is a perspective view which shows the upper end side part of a seedling stand. It is a longitudinal cross-sectional view which shows a partition plate. It is a left view which shows the handrail provided with the 2nd implementation structure. It is a left view which shows the handrail provided with the 3rd implementation structure. It is a left view which shows the back guard provided with the 1st another implementation structure. It is a front view which shows the back guard provided with the 2nd another implementation structure. It is a front view which shows the back guard provided with the 3rd another implementation structure.

Hereinafter, an embodiment of a riding type rice transplanter according to the present invention will be described based on the drawings.
[Example 1]
FIG. 1 is a left side view showing the entirety of the riding type rice transplanter in which the lower preliminary seedling storage device 50 is in the second state. FIG. 3 is a plan view showing the entirety of the riding type rice transplanter in which the lower preliminary seedling storage device 50 is in the second state. 1 and 3, the direction [F] is the [front side] of the traveling vehicle body 4, the direction [B] is the [rear side] of the traveling vehicle body 4, the direction [L] is the [left side] of the traveling vehicle body 4, [ The direction of R] is defined as the [right side] of the traveling vehicle body 4.

  As shown in FIGS. 1 and 3, a traveling vehicle body 4 equipped with a pair of left and right front wheels 2 and a pair of left and right rear wheels 3 is provided at a lower portion of the body frame 1. A driving portion 6 having an engine 5 is provided at the front portion of the traveling vehicle body 4. In the traveling vehicle body 4, the front wheels 2 are driven by the driving force transmitted from the engine 5 to the mission 7, and the rear wheels are driven by the driving force transmitted from the engine 5 to the rear wheel drive case 9 via the mission 7 and the rotating shaft 8. It runs on its own when 3 is driven. A riding-type driving unit 11 having a driving seat 10 is provided at the rear of the traveling vehicle body 4. The traveling vehicle body 4 is configured as a riding type so as to be mounted on and operated by the driving unit 11.

  A seedling planting device 20 is connected to the rear portion of the traveling vehicle body 4 via a link mechanism 12. The link mechanism 12 is supported by the body frame 1 so as to be swingable up and down. In the seedling planting device 20, the link mechanism 12 is swung by the hydraulic cylinder 13, so that the grounding float 21 is raised from the field scene S and the grounding float 21 is raised from the field scene S. The ascending / descending operation is performed over the raised non-working state.

  As shown in FIGS. 1 and 3, the seedling planting device 20 includes eight seedling planting mechanisms 22 arranged in the lateral width direction of the traveling vehicle body 4 and one seedling mounting table 23. As shown in FIG. 3, the seedling mounting base 23 is provided with eight seedling mounting portions 23 a for mounting the mat-shaped seedlings side by side in the lateral width direction of the traveling vehicle body 4. The seedling mount 23 is reciprocated in the lateral width direction of the traveling vehicle body 4 in a state interlocked with the seedling planting movement of the seedling planting mechanism 22, and supplies seedlings to each seedling planting mechanism 22 from the seedling mounting unit 23 a.

  The riding type rice transplanter performs a seedling planting operation in which eight seedlings can be planted by the seedling planting device 20 by causing the traveling vehicle body 4 to travel in a state where the seedling planting device 20 is lowered to the descending operation state.

  As shown in FIGS. 1 and 3, a receiving device 14 is provided at the front portion of the traveling vehicle body 4. As shown in FIGS. 1, 3, and 4, the support frame 15 of the receiving device 14 is connected to a support column 41 of left and right spare seedling storage devices 40 and 50 described later. The receiving device 14 acquires position information of the traveling vehicle body 4 by a satellite positioning system, and inputs the acquired position information to an automatic steering control device (not shown) of the traveling vehicle body 4.

  As shown in FIGS. 8 and 9, the extended seedling mounting table 24 is extended from each seedling mounting portion 23 a of the seedling mounting table 23. A pair of left and right partition plates 25 are erected on both lateral ends of the seedling mount 23. The left and right partition plates 25 at both lateral ends of the seedling stage 23 span the seedling placement part 23a at the most lateral end of the seedling stage 23 and the extended seedling stage 24 corresponding to the seedling placement part 23a. Is provided. The left and right partition plates 25 extend from the partition wall portion 23b located on the side of the seedling placement portion 23a toward the top of the seedling placement stand 23, and from the partition wall portion 23b to above the extended seedling placement stand 24. It extends toward.

  When a mat-like seedling is replenished to the seedling placement portion 23a at the lateral end of the seedling placement stand 23, the mat-like seedling is placed on the seedling placement portion 23a by the left and right partition plates 25 even if the seedling placement stand 23 is being transferred horizontally. It can be replenished while properly guiding to. That is, it is possible to avoid replenishing the mat-like seedlings from the lateral seedling placement portion 23a to the lateral outer side for the lateral transfer of the seedling placement platform 23. In this embodiment, the partition plate 25 is provided only on the seedling placement part 23a at the lateral end, but may be provided on all seedling placement parts 23a.

  As shown in FIGS. 1 and 3, a work step 16 is provided in a portion of the traveling vehicle body 4 that extends from both lateral sides of the driver seat 10 to the rear of the driver seat 10. Handrails 30 are provided on both lateral sides of the driving unit 11. The left and right handrails 30 are erected upward from an entry / exit step frame as a vehicle body portion of the traveling vehicle body 4 and a work step frame as a vehicle body portion of the traveling vehicle body 4. The upper end portion 31 of the left and right handrails 30 is located at a position on the rear side of the entrance 11 a of the driving unit 11 and located above the lateral edge of the work step 16. As shown in FIGS. 1, 3, 6 and 7, a rear guard 17 extending in the lateral direction of the traveling vehicle body 4 is provided behind the driver seat 10. The rear guard 17 is disposed above the rear edge of the work step 16. The rear guard 17 is connected across the left handrail 30 and the right handrail 30. The left and right handrails 30 can be used when riding on the driving unit 11, getting off the driving unit 11, or when located on the work step 16. The rear guard 17 can be used as a handrail when positioned in the work step 16. In this embodiment, the fertilizer tank and the fertilizer feeding mechanism of the fertilizer application apparatus are not provided behind the driver seat 10, but the fertilizer tank and the fertilizer feeding mechanism may be provided.

  As shown in FIGS. 1 and 7, an empty space A is provided below the upper end portion 31 of the left and right handrails 30. The empty space A is provided by configuring the handrail 30 with a bent pipe member.

  As shown in FIGS. 1, 3, and 4, upper and lower two-stage preliminary seedling storage devices 40 and 50 are provided on both lateral sides of the traveling vehicle body 4. The left and right two-stage reserve seedling storage devices 40, 50 are provided in front of the left handrail 30. The right and left two-stage reserve seedling storage devices 40 and 50 are provided in front of the handrail 30 on the right side.

  As shown in FIGS. 1 and 4, the upper left-stage reserve seedling storage device 40 includes upper and lower four-stage reserve seedling mounting tables 42. The four-stage preliminary seedling stage 42 is supported by a pair of front and rear columns 41. The front column 41 is erected upward from the engine support frame of the traveling vehicle body 4. The rear column 41 is erected upward from the boarding / exiting step frame of the traveling vehicle body 4.

  The reserve seedling storage device 40 in the upper right stage has the same configuration as the reserve seedling storage device 40 in the upper left stage. In the upper left preliminary seedling storage device 40 and the upper right preliminary seedling storage device 40, four spare mat-shaped seedlings to be supplied to the seedling planting device 20 can be stored side by side in the vertical direction of the traveling vehicle body 4. .

  As shown in FIGS. 1, 2, and 3, the preliminary seedling storage device 50 in the lower left stage includes three preliminary seedling mounting platforms 51, 52, and 53. The three preliminary seedling placement stands 51, 52, 53 include placement base frames 51a, 52a, 53a and preliminary seedling placement base bodies 51b, 52b, 53b. The preliminary seedling placement base main bodies 51b, 52b, 53b are supported in a fixed state on the placement base frames 51a, 51b, 53b. Of the three spare seedling placement stands 51, 52, 53, two preliminary seedling placement stands 52, 53 are provided with extended placement stands 52c, 53c. The extension mounting tables 52c and 53c are supported by the preliminary seedling mounting table main bodies 52b and 53b and the mounting table frames 52a and 53a so as to be slidable.

  Of the three spare seedling placement stands 51, 52, 53, the preliminary seedling placement stand 51 has the placement base frame 51a fixed to the front and rear support columns 41, so that the seedling placement surface is facing upward and backward. It is fixed to the column 41. Hereinafter, the preliminary seedling placement table 51 is referred to as a fixed preliminary seedling placement table 51.

  In the preliminary seedling mounting table 52 among the three preliminary seedling mounting tables 51, 52, 53, one end portion of the mounting table frame 52 a is connected to the front end side of the mounting table frame 51 a of the fixed preliminary seedling mounting table 51 via a connecting shaft 54. It is rotatably supported. The spare seedling placement table 52 can be swung with respect to the fixed preliminary seedling placement table 51 with an axis 54 a extending in the lateral direction of the traveling vehicle body of the connecting shaft 54 as a swing center. Hereinafter, this preliminary seedling mounting table 52 is referred to as the previous movable preliminary seedling mounting table 52. By swinging the previous movable preliminary seedling mounting table 52, the mounting posture of the previous movable preliminary seedling mounting table 52 is changed to the position on the seedling mounting surface side of the fixed preliminary seedling mounting table 51 as shown in FIGS. And a storage posture in which the seedling placement surface of the movable movable seedling placement table 52 faces downward, and a fixed seedling placement table 51 as shown in FIGS. It can be switched to a use posture in which is upward.

  In the preliminary seedling placement table 53 among the three preliminary seedling placement tables 51, 52, 53, the end of the mounting table frame 53 a opposite to the side on which the extended placement table 53 c is located is the fixed preliminary seedling placement table 51. The mounting table frame 51a is rotatably supported via a connecting shaft 55 on the rear end side. The spare seedling placement table 53 can be swung with respect to the fixed preliminary seedling placement table 51 with an axis 55a extending in the lateral direction of the traveling vehicle body of the connecting shaft 55 as a swing center. Hereinafter, the preliminary seedling placement table 53 is referred to as a later movable preliminary seedling placement table 53. By swinging the subsequent movable preliminary seedling placement table 53, the mounting posture of the subsequent movable preliminary seedling placement table 53 is changed so that it is folded over the fixed preliminary seedling placement table 51 as shown in FIGS. A stowed posture in which the seedling placement surface of the movable spare seedling placement stand 53 is folded downward on the movable spare seedling placement stand 52 and the rear side of the traveling vehicle body from the fixed spare seedling placement stand 51 as shown in FIGS. And a use posture in which the seedling placement surface of the movable movable seedling placement table 53 is upward.

  In the use posture of the subsequent movable preliminary seedling mounting table 53, the extension mounting table 53c is slid to change the mounting posture of the extended mounting base 63c to the rear from the subsequent movable preliminary seedling mounting table 53 as shown in FIGS. In addition, it is possible to switch between a use posture projecting along the front-rear direction of the subsequent movable preliminary seedling placement table 53 and a storage posture stored on the inner side of the subsequent movable preliminary seedling placement table 53.

  As shown in FIGS. 2 and 4, the reserve seedling storage device 50 in the lower left stage switches the fixed movable seedling mounting table 51 by switching the front movable preliminary seedling mounting table 52 and the rear movable preliminary seedling mounting table 53 to the retracted posture. The first movable preliminary seedling placement table 52 and the rear movable preliminary seedling placement table 53 are stored in a line in the vertical direction of the traveling vehicle body 4.

  As shown in FIGS. 1 and 3, the lower left stage standby seedling storage device 50 switches the front movable preliminary seedling mounting table 52 and the rear movable preliminary seedling mounting table 53 to the use posture, thereby fixing the fixed preliminary seedling mounting table 51. The front movable preliminary seedling mounting table 52 and the rear movable preliminary seedling mounting table 53 are arranged in the front-rear direction of the traveling vehicle body 4, and the fixed preliminary seedling mounting table 51, the front movable preliminary seedling mounting table 52, and the rear movable preliminary seedling mounting table. It will be in the 2nd state which can mount a mat-like seedling on the mounting base 53. FIG.

  As shown in FIGS. 3 and 4, the lower right preliminary seedling storage device 50 has the same configuration as the lower left preliminary seedling storage device 50. The seedling planting device 20 is added to the lower left stage standby seedling storage device 50 and the lower right stage preliminary seedling storage device 50 by switching the lower left standby seedling storage device 50 and the lower right stage preliminary seedling storage device 50 to the second state. Three spare mat-like seedlings to be supplied to the vehicle body 4 can be accommodated side by side in the front-rear direction of the traveling vehicle body 4.

  As shown in FIGS. 1, 3, and 5, when the preliminary seedling storage device 50 is switched to the second state in the lower left preliminary seedling storage device 50 and the lower right preliminary seedling storage device 50, the extended mounting base 53 c is used. By adopting the posture, the rear movable preliminary seedling placement base 53 (the first preliminary seedling placement base from the rear is provided by the extended placement base 53c and the rear portion of the preliminary seedling placement base main body 51b of the subsequent movable preliminary seedling placement base 53. The rear end side portion 53r is formed, and the rear end side portion 53r enters the empty space A, and the rear end side portion 53r and the upper end portion 31 overlap in plan view. Further, the rear end side portion 53r enters the entrance 11a. The entrance 11a can be closed by utilizing the rear end side portion 53r as a closing member.

  As shown in FIGS. 1 and 4, in the upper left preliminary seedling storage device 40 and the upper right preliminary seedling storage device 40, the end portions on the lateral side of the traveling vehicle body of the upper and lower four stages of the preliminary seedling mounting table 42 are front and rear columns 41. Are rotatably connected to each other via a connecting shaft (not shown). The upper and lower four-stage preliminary seedling mounting table 42 is in a lowered use posture in a state of being lowered like the upper right-stage preliminary seedling mounting table 42 shown in FIG. And a raised storage posture in a raised state like the preliminary seedling placement table 42 in the upper left stage shown in FIG. The front and rear struts 41 are formed in a bent state in which the upper part supporting the upper preliminary seedling storage device 40 is positioned on the lateral inner side of the traveling vehicle body from the lower part supporting the lower preliminary seedling storage device 50. That is, when the front movable seedling placement table 52 and the rear movable preliminary seedling placement table 53 are swung between the storage posture and the use posture, the preliminary seedling placement table 42 is switched to the rising storage posture, thereby The movable spare seedling mounting table 52 and the rear movable preliminary seedling mounting table 53 are retracted from the moving path of the previous movable preliminary seedling mounting table 52 and the subsequent movable preliminary seedling mounting table 53 to the inner side of the traveling vehicle body. be able to.

[Example 2]
FIG. 10 is a left side view showing a portion where the handrail 30 of the riding type rice transplanter having the second embodiment structure is disposed. In the riding type rice transplanter provided with the second embodiment structure, the upper end portion 31 of the handrail 30 includes a fixed portion 31a and a movable portion 31b.

  The fixed portion 31 a is fixed to the vehicle body portion of the traveling vehicle body 4. A support portion 32 is provided at the rear portion of the fixed portion 31a. A rear end portion of the movable portion 31b is rotatably connected to the support portion 32 via a connecting shaft 33. The movable portion 31b has a lowered use state in which the connecting shaft 33 extends forward from the fixed portion 31a as shown by a solid line in FIG. As shown by a chain line, the swinging operation is supported in the ascending storage state stored in the rear portion of the fixed portion 31a.

  When the movable portion 31b is in the lowered use state, the front end side portion 31f enters the entrance 11a, and the front end side portion 31f closes the entrance 11a. When the movable portion 31b is in the lowered use state, the front end side portion 31f of the movable portion 31b protrudes forward from the fixed portion 31a, and an empty space A is formed below the front end side portion 31f. When the movable portion 31b is in the lowered use state, the portion of the movable portion 31b located on the free end side with respect to the connecting shaft 33 is received and supported by the support portion 34, and the movable portion 31b can be held in the lowered use state. When the movable portion 31b is in the ascending storage state, the movable portion 31b is positioned on the rear side of the entrance / exit 11a and opens to open the entrance / exit 11a.

  By switching the movable part 31b to the raised storage state, the movable part 31b can be released from closing the entrance 11a, and the fixed part 31a can be used as a handrail to get on the driving part 11 or to get off the driving part 11. it can. Except when riding on the driving part 11 or getting off the driving part 11, the movable part 31b can be used as a closing member to close the entrance 11a by switching the movable part 31b to the lowered use state.

Example 3
FIG. 11 is a left side view showing a portion where the handrail 30 of the riding type rice transplanter having the third embodiment structure is disposed. In the riding type rice transplanter having the third embodiment structure, the upper end portion 31 of the handrail 30 includes a fixed portion 31a and a movable portion 31b.

  A support portion 34 is provided on the support column 41 on the rear side of the preliminary seedling storage device 50. When the movable part 31b is switched to the open state, the front end side part 31f of the movable part 31b is received and supported by the support part 34, and is received and supported by the rear column 41.

[Another embodiment]
(1) FIG. 12 is a left side view showing the rear guard 17 having the first alternative embodiment structure. As shown in FIG. 12, the rear guard 17 having the first different implementation structure is supported by the front leg portion 31 c of the left and right handrails 30 and 30 c before and after the right handrail 30. Has been.

(2) FIG. 13 is a front view showing the rear guard 17 having the second alternative embodiment structure. As shown in FIG. 13, the rear guard 17 having the second different implementation structure includes an upper rear guard 17u that also serves as a rear handrail, a middle rear guard 17n, and a lower rear guard 17d.

(3) FIG. 14 is a front view showing a rear guard 17 having a third alternative embodiment structure. As shown in FIG. 14, the rear guard 17 having the third different implementation structure includes an upper rear guard 17 u that also serves as a rear handrail, a lower rear guard 17 d, and a pair of left and right side guard plates 18. Yes. The left and right side guard plates 18 are connected to the upper rear guard 17u and the lower rear guard 17d at positions located on the rear sides of both sides of the driver seat 10.

(4) In the above-described embodiment, an example in which the preliminary seedling storage device 50 is provided with the three preliminary seedling mounting bases 51, 52, and 53 has been described. You may implement by providing a seedling mounting stand.

(5) In the above-described embodiment, the example in which the previous movable preliminary seedling mounting table 52 and the subsequent movable preliminary seedling mounting table 53 are switched between the storage posture and the use posture by swinging is shown. By replacing the previous movable preliminary seedling mounting table 52 and the subsequent movable preliminary seedling mounting table 53 with the fixed preliminary seedling mounting table 51 and the support column 41, the preliminary seedling mounting tables 51, 52, 53 are aligned in the vertical direction of the vehicle body. And a configuration in which the state is switched to the state of being aligned in the longitudinal direction of the vehicle body. In addition, a plurality of preliminary seedling mounting tables are supported by a link mechanism that is swingably supported by the support column 41, and a state in which the plurality of preliminary seedling mounting tables are arranged in the vertical direction of the vehicle body by the swinging operation of the link mechanism You may employ | adopt the structure switched to the state arranged in a direction.

(6) In the above-described embodiment, an example in which the state in which the spare seedling placement tables 51, 52, and 53 are stored is the first state of the spare seedling storage device 50 has been described. A state in which the seedlings can be placed and accommodated in the vertical direction of the traveling vehicle body may be configured to be the first state of the reserve seedling accommodation device 50.

(7) In the above-described embodiment, an example in which the extended movable stand 53c is provided in the later movable preliminary seedling placement table 53 is shown. However, the extended movable stand 53c is not provided, and the subsequent movable spare seedling placement stand 53 is reserved. You may comprise so that the rear-end side part of the seedling mounting base main body 51b may enter the empty space A.

(8) In the above-described embodiment, an example in which the upper-stage spare seedling storage device 40 is provided has been shown. However, the upper-stage preliminary seedling storage device 40 is not provided, and the spare seedling that can be switched between the first state and the second state. Only the storage device 50 may be provided.

  The present invention is not limited to a riding type rice transplanter to which a seedling planting device 20 capable of planting eight rows is connected, and a seedling planting device that performs seedling planting with fewer than eight rows, such as four and six. Alternatively, the present invention can be applied to a riding type rice transplanter to which a seedling planting device capable of planting more than 8 strips is connected. Further, the present invention can be applied to a riding type rice transplanter equipped with a fertilizer tank provided with a fertilizer tank provided behind the driver's seat 10 and a fertilizer feeding device.

DESCRIPTION OF SYMBOLS 11 Operation part 11a Entrance / exit port 20 Seedling planting device 30 Handrail 31 Upper end part 31a Fixed part 31b Movable part 31f Front end side part 50 Spare seedling accommodation apparatus 51 Spare seedling stage 53 Spare seedling stage 53 Spare seedling stage 53b Mounting table body 53c Extended mounting table 53r Rear end side

Claims (6)

A traveling vehicle body having a boarding type driving unit;
A seedling planting device coupled to the rear portion of the traveling vehicle body so as to be capable of moving up and down;
On the lateral side of the driving part, a handrail erected upward from the vehicle body part,
A preliminary seedling storage device provided in front of the handrail, and
The preliminary seedling storage device includes a plurality of preliminary seedling mounting bases, wherein the plurality of preliminary seedling mounting bases are arranged in the vertical direction of the traveling vehicle body, and the plurality of preliminary seedling mounting bases are arranged in front of and behind the traveling vehicle body. It can be switched to the second state aligned in the direction,
An empty space is provided below the upper end of the handrail,
In the second state of the reserve seedling storage device, a rear end side portion of the first reserve seedling placement table from the back among a plurality of the reserve seedling placement tables enters the empty space, and the upper end in plan view Riding type rice transplanter in which the part and the rear end side part overlap. The first preliminary seedling mounting table includes a preliminary seedling mounting table main body, a use posture projecting rearward from the preliminary seedling mounting table main body, and a storage posture stored inward of the preliminary seedling mounting table main body. An extension mounting table supported by the preliminary seedling mounting table body so that the posture can be changed over
The riding type rice transplanter according to claim 1, wherein the rear end side portion of the first preliminary seedling mounting table is formed by the extended mounting table in the use posture.   The riding type rice transplanter according to claim 1 or 2, wherein in the second state of the preliminary seedling storage device, the rear end side portion of the first preliminary seedling placement table enters an entrance / exit of the operation unit. The upper end portion of the handrail has a fixed portion fixed to a vehicle body portion, a closed state that extends forward from the fixed portion, and a front end side portion closes the entrance / exit of the driving portion, and the entrance / exit It has a movable part that can be switched to an open state that opens,
The riding type rice transplanter according to any one of claims 1 to 3, wherein the empty space is formed below the movable part in the closed state.   The riding type rice transplanter according to claim 4, wherein the movable portion is supported by the fixed portion so as to be able to swing and switch between the closed state and the opened state.   The riding type rice transplanter according to claim 4 or 5, wherein in the closed state of the movable part, a front end side part of the movable part is supported by a column of the reserve seedling storage device.

Images