JP2012019694A

JP2012019694A - Seedling transplanter

Info

Publication number: JP2012019694A
Application number: JP2010157684A
Authority: JP
Inventors: Daisuke Imaizumi; 大介今泉
Original assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Current assignee: Iseki and Co Ltd; Iseki Agricultural Machinery Mfg Co Ltd
Priority date: 2010-07-12
Filing date: 2010-07-12
Publication date: 2012-02-02

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter having a spare seedling mounting table which can hold seedling mats without moving the seedling mats in a fore and aft direction in the stacked stored arrangement and the seedling mats can be smoothly conveyed in the serial deploying arrangement.SOLUTION: The seedling transplanter has the traveling vehicle body (2) capable of traveling and agricultural field by the controlling part (31), the transplanting device (4) for transplanting seedlings from the seedling mat (G) to the agricultural field at the rear part of the traveling vehicle body (2) in series, and the spare seedling mounting table (38) housing and holding the seedling mat (G) for charging into the transplanting device (4) in the outer side parts of the controlling part (31), the spare seedling mounting table (38) is constituted of the seedling receiving member (81) in which the passage (P) for the guiding and supporting the seedling mat (G) movably back and forth is formed, the regulating member (83) for regulating the movement of the seedling mat (G) on the passage (P) of the seedling receiving member (81), and the movable supporting mechanism (84) for movably supporting the seedling receiving member (81) to the position avoiding the regulating member (83).

Description

本発明は、苗植付装置を有する機体の側部に予備苗載台を備えた苗移植機に関する。 The present invention relates to a seedling transplanting machine provided with a spare seedling mount on the side of an airframe having a seedling planting device.

苗マットから苗株を順次植付ける苗植付装置を機体後部に備えた苗移植機において、機体の前部側端位置に補充用の苗マットを収容するための予備苗載台を備えた苗移植機が知られている。
引用文献１の苗移植機では、苗マットを保持する複数の苗受板を平行リンクで連結し、苗マットを収容保持するために上下に積み重ねた段積収納配置と、苗マットを順送り移動するために機体前端から後部の苗植付装置の方向に直線状に連接する直列展開配置とに切替え可能に予備苗載台を構成し、圃場において苗マットを補充する際に、機体前端部を圃場端の畦面に突き合わせて苗受板を直列展開配置に切替えることにより、作業者が圃場に降りることなく、機体の前端から苗マットを順次積み込むことができ、また、植付走行の際には、段積収納配置に切替えることにより、機体旋回時の地上側との干渉を回避しつつ、走行位置確認等の視界確保が可能となる。 A seedling transplanter equipped with a seedling planting device for sequentially planting seedlings from a seedling mat at the rear part of the aircraft, and a seedling equipped with a spare seedling stand for accommodating a supplemental seedling mat at the front side end position of the aircraft Transplanters are known.
In the seedling transplanting machine of Cited Document 1, a plurality of seedling receiving plates that hold a seedling mat are connected by parallel links, and a stacking storage arrangement in which the seedling mat is stacked up and down to accommodate and hold the seedling mat and the seedling mat are moved forward. For this purpose, a spare seedling platform is constructed so that it can be switched from the front end of the aircraft to the serially deployed arrangement that is linearly connected in the direction of the rear seedling planting device, and when the seedling mat is replenished in the field, the front end of the aircraft is By switching the seedling receiving plate to the serially deployed arrangement in contact with the edge of the end, the seedling mat can be loaded sequentially from the front end of the machine body without getting down to the field, and when planting traveling By switching to the stacked storage arrangement, it is possible to ensure visibility such as travel position confirmation while avoiding interference with the ground side when the aircraft is turning.

特開２００９−２３２８０９号公報JP 2009-232809 A

しかしながら、積込んだ苗マットが段積収納配置において前後に移動しないように、取付フレームに設けた受止部材と、苗受板に設けた固定ストッパによって規制する必要があることから、直列展開状態としたときでも、苗マットの前後位置で固定ストッパが塞いでいるため、苗マットを苗受板に搬入する際、及び苗マットを植付部に移動させる際に、作業者はこの固定ストッパを避けて苗マットを移動させる必要があり、作業能率が悪く、また作業者の労力が増加するという問題があった。 However, in order to prevent the loaded seedling mat from moving back and forth in the stacking storage arrangement, it is necessary to regulate by the receiving member provided on the mounting frame and the fixed stopper provided on the seedling receiving plate. However, when the seedling mat is carried into the seedling receiving plate and when the seedling mat is moved to the planting part, the operator holds the fixing stopper. There is a problem that it is necessary to move the seedling mat while avoiding it, the work efficiency is poor, and the labor of the worker is increased.

本発明の目的は、段積収納配置において苗マットが前後に移動することなく安定保持できるとともに、直列展開配置において苗マットが円滑に搬入できる予備苗載台を備えた苗移植機を提供することにある。 An object of the present invention is to provide a seedling transplanter equipped with a preliminary seedling mounting base that can stably hold a seedling mat without moving back and forth in a stacked storage arrangement and can smoothly carry the seedling mat in a series development arrangement. It is in.

請求項１に係る発明は、操縦部３１によって圃場を走行可能な走行車体２と、この走行車体２の後部で苗マットＧから圃場に苗株を順次植付けする植付装置４と、この植付装置４に投入するための苗マットＧを操縦部３１の外側部で収容保持する予備苗載台３８とを備える苗移植機において、上記予備苗載台３８は、苗マットＧを前後移動可能に案内支持する通路Ｐを形成した苗受板８１，９１，１０１と、この苗受板８１，９１，１０１の通路Ｐ上で苗マットＧの移動を規制する規制部材８３，９３，１０３と、この規制部材８３，９３，１０３を回避する位置まで苗受板８１，９１，１０１を可動支持する可動支持機構８４，９４，１０４とからなることを特徴とする。 The invention according to claim 1 includes a traveling vehicle body 2 capable of traveling in a farm field by a control unit 31, a planting device 4 for sequentially planting seedlings from a seedling mat G to a farm field at the rear of the traveling vehicle body 2, and the planting. In a seedling transplanting machine including a seedling mating stand 38 that accommodates and holds a seedling mat G to be loaded into the apparatus 4 at the outer side of the control unit 31, the preliminary seedling placing table 38 can move the seedling mat G back and forth. Seedling receiving plates 81, 91, 101 having passages P for guiding and supporting, regulating members 83, 93, 103 for restricting movement of the seedling mat G on the passages P of the seedling receiving plates 81, 91, 101, It is characterized by comprising movable support mechanisms 84, 94, and 104 that move and support the seedling receiving plates 81, 91, and 101 up to a position where the regulating members 83, 93, and 103 are avoided.

上記苗受板８１，９１，１０１は、走行車体の前後方向の通路Ｐを形成して苗マットＧを前後移動可能に支持しつつ、規制部材８３，９３，１０３は苗受板８１，９１，１０１の通路上で苗マットＧの移動を規制し、また、可動支持機構８４，９４，１０４により規制部材８３，９３，１０３の介在を回避する位置に切替え可能に可動支持される。 The seedling receiving plates 81, 91, 101 form a passage P in the front-rear direction of the traveling vehicle body and support the seedling mat G so that the seedling mat G can be moved back and forth, while the regulating members 83, 93, 103 are the seedling receiving plates 81, 91, The movement of the seedling mat G is regulated on the passage 101, and is also movably supported by the movable support mechanisms 84, 94, 104 so as to be switched to a position where the intervention of the regulating members 83, 93, 103 is avoided.

請求項２に係る発明は、請求項１の構成において、前記可動支持機構は、苗受板８１の通路Ｐが規制部材８３から外れる位置まで苗受板８１を通路Ｐ方向の支軸によって側方に傾動可能に支持する軸支機構８４によって形成したことを特徴とする。
上記苗受板８１は、通路方向軸線回りの傾動動作によって通路Ｐの規制部材８３が外れる位置において前後方向の通路Ｐが確保される。 According to a second aspect of the present invention, in the configuration of the first aspect, the movable support mechanism moves the seedling receiving plate 81 laterally by a support shaft in the passage P direction until the passage P of the seedling receiving plate 81 is disengaged from the regulating member 83. It is characterized in that it is formed by a shaft support mechanism 84 that is supported so as to be tiltable.
In the seedling receiving plate 81, the passage P in the front-rear direction is secured at a position where the regulating member 83 of the passage P is removed by the tilting operation around the passage direction axis.

請求項３に係る発明は、請求項１の構成において、前記可動支持機構は、苗受板１０１の通路Ｐが規制部材１０３から外れる位置まで苗受板１０１を通路横断方向の支軸によって前後方向に傾動可能に支持する軸支機構１０４によって形成したことを特徴とする。
上記苗受板１０１は、通路横断方向軸線回りの傾動動作によって通路Ｐの規制部材１０３が外れる位置において前後方向の通路が確保される。 According to a third aspect of the present invention, in the configuration of the first aspect, the movable support mechanism is configured so that the seedling receiving plate 101 is moved in the front-rear direction by a support shaft in the passage crossing direction until the passage P of the seedling receiving plate 101 is disengaged from the regulating member 103. It is characterized by being formed by a shaft support mechanism 104 that is supported so as to be tiltable.
In the seedling receiving plate 101, a passage in the front-rear direction is secured at a position where the regulating member 103 of the passage P is removed by a tilting operation around the passage transverse direction axis.

請求項４に係る発明は、請求項１の構成において、前記可動支持機構は、苗受板９１の通路Ｐが規制部材９３から外れる位置まで苗受板９１を通路横断方向のスライド軸線によって側方移動可能に支持するスライド支持機構９４によって形成したことを特徴とする。
上記苗受板は、通路横断方向のスライド軸線による側方移動動作によって通路Ｐの規制部材９３が外れる位置において前後方向の通路Ｐが確保される。 According to a fourth aspect of the present invention, in the configuration of the first aspect, the movable support mechanism moves the seedling receiving plate 91 laterally by a slide axis in the passage crossing direction until the passage P of the seedling receiving plate 91 is disengaged from the regulating member 93. It is formed by a slide support mechanism 94 that is movably supported.
In the seedling receiving plate, a passage P in the front-rear direction is secured at a position where the regulating member 93 of the passage P is removed by a lateral movement operation by a slide axis in the passage transverse direction.

請求項５に係る発明は、請求項１の構成において、前記苗受板８１，９１，１０１は、複数個を平行リンク３９ａ，３９ｂ，３９ｃで連結し、上下に積み重ねて苗マットＧを収容保持する段積収納配置と、機体前端から後方に直線状に連接して苗マットＧの順送り移動を可能とする直列展開配置とに切替え可能に構成したことを特徴とする。
上記構成の予備苗載台は、複数の苗受板８１，９１，１０１について個々に通路Ｐ上の移動と規制の切替えが可能なことから、段積収納配置において規制部材８３，９３，１０３により各苗受板８１，９１，１０１による苗マットＧの保持が可能となり、また、直列展開配置において規制部材８３，９３，１０３を回避位置に切替えることにより全苗受板８１，９１，１０１の通路Ｐが直通される。 According to a fifth aspect of the present invention, in the configuration of the first aspect, a plurality of the seedling receiving plates 81, 91, 101 are connected by parallel links 39a, 39b, 39c, and stacked up and down to accommodate and hold the seedling mat G. It is characterized in that it can be switched between a stacked storage arrangement and a series deployment arrangement in which the seedling mat G can be moved forward by connecting linearly rearward from the front end of the machine body.
Since the spare seedling stage having the above-described configuration can be individually moved and switched on the passage P with respect to the plurality of seedling receiving plates 81, 91, and 101, the restriction members 83, 93, and 103 are used in the stacking storage arrangement. The seedling mat G can be held by each of the seedling receiving plates 81, 91, 101, and the passages of all the seedling receiving plates 81, 91, 101 can be obtained by switching the regulating members 83, 93, 103 to the avoidance position in the series deployment arrangement. P is passed directly.

請求項１の発明の苗移植機は、予備苗載せ台３８を構成する苗受板８１，９１，１０１に苗マットＧを前後移動可能に支持する通路Ｐを形成し、苗マットＧの移動を規制する規制部材８３，９３，１０３を苗受板８１，９１，１０１の通路Ｐ上に設け、規制部材８３，９３，１０３を回避する位置に苗受板８１，９１，１０１を切替移動させる可動支持機構８４，９４，１０４を設けたことにより、苗受板８１，９１，１０１上に載置した苗マットＧを規制部材８３，９３，１０３によって確実に保持した状態で植付作業を行うことができるとともに、可動支持機構８４，９４，１０４を切替操作して苗受板８１，９１，１０１を規制部材８３，９３，１０３を回避する位置に切り替え可能に構成したことにより、苗マットＧが通路Ｐを機体前後方向に移動することが可能となるので、苗受板８１，９１，１０１に載置した苗マットＧの前後移動が容易となるため、苗マットＧの積込み、あるいは取出し操作を能率的に行なえ、作業能率が向上する。 The seedling transplanting machine according to the first aspect of the present invention forms a passage P for supporting the seedling mat G so as to be movable back and forth in the seedling receiving plates 81, 91, 101 constituting the preliminary seedling placing table 38, and moves the seedling mat G. A regulating member 83, 93, 103 to be regulated is provided on the passage P of the seedling receiving plates 81, 91, 101, and the seedling receiving plates 81, 91, 101 are moved to be switched to a position where the regulating members 83, 93, 103 are avoided. By providing the support mechanisms 84, 94, 104, the planting operation is performed in a state where the seedling mat G placed on the seedling receiving plates 81, 91, 101 is securely held by the regulating members 83, 93, 103. In addition, the seedling mat G is configured so that the movable support mechanisms 84, 94, and 104 can be switched to switch the seedling receiving plates 81, 91, and 101 to positions that avoid the regulating members 83, 93, and 103. Passage P through the aircraft Since it is possible to move backward, the seedling mat G placed on the seedling receiving plates 81, 91, 101 can be easily moved back and forth, so that the seedling mat G can be loaded or removed efficiently. , Work efficiency is improved.

請求項２に係る発明は、請求項１の効果に加え、通路Ｐ方向に延びる支軸８４について苗受板８１を機体側方に傾動可能に支持する軸支機構を構成したことにより、苗受板８１を傾斜させ、機体外側に向かう下方傾斜姿勢とすると、通路Ｐが規制部材８３から離間するため、苗マットＧを通路Ｐに沿って機体前後方向に移動させることができ、苗マットＧの積込み、あるいは取出し操作を能率的に行なえ、作業能率が向上する。
また、苗受板８１を逆方向に傾斜させ、機体外側に向かう上方傾斜姿勢とすると、通路Ｐが規制部材８３と重合するため、苗マットＧが苗受板８１上から機体前後方向に移動することを防止できるので、植付作業中に機体が揺れるなどしても積載した苗マットＧが落下することが防止され、落下した苗マットＧを作業者が拾い集める必要が無く、作業者の労力が軽減されると共に作業能率が向上する。 In addition to the effect of claim 1, the invention according to claim 2 comprises a shaft support mechanism that supports the seedling receiving plate 81 so as to be tiltable to the side of the machine body about the support shaft 84 extending in the passage P direction. When the plate 81 is inclined and the posture is inclined downward toward the outside of the machine body, the passage P is separated from the regulating member 83. Therefore, the seedling mat G can be moved along the passage P in the longitudinal direction of the machine body. Loading and unloading operations can be performed efficiently, improving work efficiency.
Further, when the seedling receiving plate 81 is inclined in the reverse direction and is in an upward inclined posture toward the outside of the machine body, the passage P overlaps with the regulating member 83, so that the seedling mat G moves from the seedling receiving plate 81 in the longitudinal direction of the machine body. Therefore, it is possible to prevent the loaded seedling mat G from falling even if the machine shakes during planting work, so that the operator does not have to collect the dropped seedling mat G, and the labor of the operator Is reduced and work efficiency is improved.

請求項３に係る発明は、請求項１の効果に加え、通路Ｐに対して横断方向に延びる支軸１０４について苗受板１０１を前後方向に傾動させる軸支機構を形成し、規制部材１０３に掛からないように苗受板１０１を傾動させて略直線状に配置することにより、苗受板１０１が規制部材１０３から離間した状態となるので、苗マットＧを苗受板１０１に沿って前後方向に移動させることができ、苗マットＧの積込み、あるいは取出し操作を能率的に行なえ、作業能率が向上する。
また、苗受板１０１を傾動させて後下り傾斜姿勢とすることにより、苗受板１０１の後端部に規制部材１０３が位置する状態となるので、苗マットＧが苗受板１０１上から機体後方に移動することを防止できるので、植付作業中に機体が揺れるなどしても積載した苗マットＧが落下することが防止され、落下した苗マットＧを作業者が拾い集める必要が無く、作業者の労力が軽減されると共に作業能率が向上する。 In addition to the effect of claim 1, the invention according to claim 3 forms a shaft support mechanism that tilts the seedling receiving plate 101 in the front-rear direction with respect to the support shaft 104 extending in the transverse direction with respect to the passage P. By tilting the seedling receiving plate 101 so as not to be hung and arranging the seedling receiving plate 101 in a substantially straight line, the seedling receiving plate 101 is separated from the regulating member 103, so that the seedling mat G is moved back and forth along the seedling receiving plate 101. Thus, the loading or unloading operation of the seedling mat G can be performed efficiently, and the work efficiency is improved.
Further, by tilting the seedling receiving plate 101 to the rearward downward tilting posture, the regulating member 103 is positioned at the rear end portion of the seedling receiving plate 101, so that the seedling mat G is mounted on the body from the seedling receiving plate 101. Since it can be prevented from moving backward, the loaded seedling mat G is prevented from falling even if the aircraft shakes during planting work, and the operator does not need to collect the dropped seedling mat G. Workers' labor is reduced and work efficiency is improved.

請求項４に係る発明は、請求項１の効果に加え、通路Ｐに対して横断方向にスライドするスライド機構９４により苗受板９１を機体側方に移動させることができるので、苗受板９１を機体外側に移動させると通路Ｐが規制部材９３から離間するため、苗マットＧを通路Ｐに沿って機体前後方向に移動させることができ、苗マットＧの積込み、あるいは取出し操作を能率的に行なえ、作業能率が向上する。
また、苗受板９１を機体内側に移動させると、通路Ｐと規制部材９３が重合するため、苗マットＧが苗受板９１上から機体前後方向に移動することを防止できるので、植付作業中に機体が揺れるなどしても積載した苗マットＧが落下することが防止され、落下した苗マットＧを作業者が拾い集める必要が無く、作業者の労力が軽減されると共に作業能率が向上する。 In the invention according to claim 4, in addition to the effect of claim 1, the seedling receiving plate 91 can be moved to the side of the machine body by the slide mechanism 94 that slides in the transverse direction with respect to the passage P. Since the passage P is separated from the regulating member 93 when the machine is moved to the outside of the machine body, the seedling mat G can be moved in the longitudinal direction of the machine body along the path P, and the loading or unloading operation of the seedling mat G can be performed efficiently. Yes, work efficiency is improved.
Further, when the seedling receiving plate 91 is moved to the inside of the machine body, the passage P and the regulating member 93 are superposed, so that the seedling mat G can be prevented from moving in the longitudinal direction of the machine body from the seedling receiving plate 91. The loaded seedling mat G is prevented from falling even if the aircraft shakes inside, eliminating the need for the operator to collect the dropped seedling mat G, reducing the labor of the operator and improving work efficiency. To do.

請求項５に係る発明は、請求項１の効果に加え、苗受板８１，９１，１０１は、複数の苗受板８１，９１，１０１を平行リンク３９ａ，３９ｂ，３９ｃで連結し、苗受板８１，９１，１０１を上下に積み重ねて苗マットＧを収容保持する段積収納配置と、苗受板８１，９１，１０１を機体前端から後方に直線状に連接して苗マットＧの順送り移動を可能とする直列展開配置とに切替え可能に構成したことにより、予備苗載台８１，９１，１０１は、機体が圃場の凹凸等により前後に傾斜しても、段積収納配置において苗マットＧを規制部材８３，９３，１０３で落下を防止して安定保持することができるので、落下した苗マットＧを作業者が拾い集める必要が無く、作業者の労力が軽減されると共に作業能率が向上する。
また、直列展開配置において、苗マットＧの移動の邪魔になる規制部材８３，９３，１０３を同時に解除することができるので、苗マットＧの積込み移動や植付装置への投入移動を円滑に進めることができ、作業能率が向上する。 In the invention according to claim 5, in addition to the effect of claim 1, the seedling receiving plates 81, 91, 101 connect the plurality of seedling receiving plates 81, 91, 101 by parallel links 39a, 39b, 39c, A stacking storage arrangement in which the plates 81, 91, 101 are stacked up and down to receive and hold the seedling mat G, and the seedling receiving plates 81, 91, 101 are linearly connected rearward from the front end of the machine body and moved forward. Since the spare seedling mounts 81, 91, 101 can be switched to the serially deployed arrangement that enables the seedling mat G in the stacked storage arrangement even if the machine body is tilted back and forth due to the unevenness of the field, etc. Can be stably held by the regulating members 83, 93 and 103, so that it is not necessary for the operator to collect the seedling mat G which has fallen, and the labor of the operator is reduced and the work efficiency is improved. To do.
In addition, since the regulating members 83, 93, and 103 that hinder the movement of the seedling mat G can be simultaneously released in the series deployment arrangement, the loading movement of the seedling mat G and the input movement to the planting device are smoothly advanced. Can improve work efficiency.

田植機の側面図Side view of rice transplanter 田植機の平面図Top view of rice transplanter 予備苗載台の段積収納配置の側面図Side view of the stacking arrangement of the spare seedling stage 予備苗載台の直列展開配置の側面図Side view of series arrangement of spare seedling platforms 予備苗載台の直列展開配置の平面図Plan view of the series arrangement of spare seedling platforms 予備苗載台の段積収納配置の正面図Front view of the stacking storage arrangement of the spare seedling stage レバー式予備苗載台の段積収納配置の側面図（ａ）及び正面図（ｂ）Side view (a) and front view (b) of stacking storage arrangement of lever-type preliminary seedling stage 構成例１の苗受板の拡大斜視図Enlarged perspective view of seedling receiving plate of configuration example 1 構成例１の苗受板の通路正面視による規制状態（ａ）と解除状態（ｂ）の作用説明図Operation explanatory drawing of the regulation state (a) by the channel | path front view of the seedling receiving plate of the structural example 1, and the cancellation | release state (b) 予備苗載台の展開状態の要部平面図Plan view of the main part in the unfolded state 構成例２の苗受板の拡大斜視図Enlarged perspective view of seedling receiving plate of configuration example 2 構成例２の苗受板の通路正面視による規制状態（ａ）と解除状態（ｂ）の作用説明図Action explanatory drawing of the regulation state (a) and the cancellation | release state (b) by the channel | path front view of the seedling receiving plate of the structural example 2 構成例３の苗受板の拡大斜視図Enlarged perspective view of seedling receiving plate of configuration example 3 ３段構成の予備苗載台の直列展開配置の側面図Side view of a three-stage stand-up seedling stand in series deployment 構成例４の苗受板の作用説明用の側面図Side view for explaining operation of seedling receiving plate of configuration example 4 規制部材の単体構成拡大図Enlarged view of the single component of the restriction member 構成例５の苗受板の直列展開配置の側面図Side view of serial development arrangement of seedling receiving plate of configuration example 5 構成例５の規制部材の要部拡大図The principal part enlarged view of the control member of the structural example 5 構成例５の規制部材の単体構成の斜視図The perspective view of the single-piece | unit structure of the control member of the structural example 5. 構成例５の別の規制部材の単体構成の斜視図The perspective view of the single-piece | unit structure of another control member of the structural example 5. 規制部材の連動操作機構の要部拡大斜視図Enlarged perspective view of the main part of the interlocking operation mechanism of the regulating member 連動操作機構の側面視による作用説明図Action explanatory diagram by side view of interlocking operation mechanism

上記技術思想に基づいて具体的に構成された実施の形態について以下に図面を参照しつつ説明する。
以下、図面に基づき、本発明の好ましい実施の形態について説明する。
図１及び図２は本発明の苗移植機の典型例である粉粒体繰出し装置として施肥装置を装着した田植機の側面図と平面図である。この施肥装置付き田植機１は、走行車体２の後側に昇降リンク装置３を介して苗植付部４が昇降可能に装着され、走行車体２の後部上側に施肥装置５の本体部分が設けられている。搭乗オペレーターが苗移植機の前進方向に向かって左右方向をそれぞれ左、右といい、前進方向と後進方向をそれぞれ前、後という。 Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 are a side view and a plan view of a rice transplanter equipped with a fertilizer application device as a granular material feeding device which is a typical example of the seedling transplanter of the present invention. In this rice transplanter 1 with a fertilizer application, a seedling planting part 4 is mounted on the rear side of the traveling vehicle body 2 via a lifting link device 3 so as to be movable up and down, and a main body portion of the fertilizer application device 5 is provided on the rear upper side of the traveling vehicle body 2. It has been. The boarding operator refers to the left and right as the forward direction of the seedling transplanter, left and right, respectively, and the forward and backward directions are referred to as forward and backward, respectively.

走行車体２は、駆動輪である左右一対の前輪１０，１０及び左右一対の後輪１１，１１を備えた四輪駆動車両であって、機体の前部にミッションケース１２が配置され、そのミッションケース１２の左右側方に前輪ファイナルケース１３，１３が設けられ、該左右前輪ファイナルケース１３，１３の操向方向を変更可能な各々の前輪支持部から外向きに突出する左右前輪車軸に左右前輪１０，１０が各々取り付けられている。また、ミッションケース１２の背面部にメインフレーム１５の前端部が固着されており、そのメインフレーム１５の後端左右中央部に前後水平に設けた後輪ローリング軸を支点にして後輪ギヤケース１８，１８がローリング自在に支持され、その後輪ギヤケース１８，１８から外向きに突出する後輪車軸に後輪１１，１１が取り付けられている。 The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles projecting outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10 and 10 are respectively attached. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18.

エンジン２０はメインフレーム１５の上に搭載されており、該エンジン２０の回転動力が、ベルト伝動装置２１及びＨＳＴ２３を介してミッションケース１２に伝達される。ミッションケース１２に伝達された回転動力は、該ケース１２内のトランスミッションにより変速された後、走行動力と外部取出動力に分離して取り出される。そして、走行動力は、一部が前輪ファイナルケース１３，１３に伝達されて前輪１０，１０を駆動すると共に、残りが後輪ギヤケース１８，１８に伝達されて後輪１１，１１を駆動する。また、外部取出動力は、走行車体２の後部に設けた植付クラッチケース２５に伝達され、それから植付伝動軸２６によって苗植付部４へ伝動されるとともに、施肥伝動機構２８によって施肥装置５へ伝動される。 The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via the belt transmission device 21 and the HST 23. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and also the fertilizer application device 5 by the fertilization transmission mechanism 28. Is transmitted to.

エンジン２０の上部はエンジンカバー３０で覆われており、その上に座席３１が設置されている。座席３１の前方には各種操作機構を内蔵するフロントカバー３２があり、その上方に前輪１０，１０を操向操作するハンドル３４が設けられている。エンジンカバー３０及びフロントカバー３２の下端左右両側は水平状のフロアステップ３５になっている。フロアステップ３５は一部格子状になっており（図２参照）、該ステップ３５を歩く作業者の靴についた泥が圃場に落下するようになっている。フロアステップ３５上の後部は、後輪フェンダを兼ねるリヤステップ３６となっている。 The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly grid-shaped (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls on the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

昇降リンク装置３は平行リンク構成であって、１本の上リンク４０と左右一対の下リンク４１，４１を備えている。これらリンク４０，４１，４１は、その基部側がメインフレーム１５の後端部に立設した背面視門形のリンクベースフレーム４２に回動自在に取り付けられ、その先端側に縦リンク４３が連結されている。そして、縦リンク４３の下端部に苗植付部４に回転自在に支承された連結軸４４が挿入連結され、連結軸４４を中心として苗植付部４がローリング自在に連結されている。メインフレーム１５に固着した支持部材と上リンク４０に一体形成したスイングアーム（図示せず）の先端部との間に昇降油圧シリンダ４６が設けられており、該シリンダ４６を油圧で伸縮させることにより、上リンク４０が上下に回動し、苗植付部４がほぼ一定姿勢のまま昇降する。 The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted by hydraulic pressure. The upper link 40 pivots up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

苗植付部４は６条植の構成で、フレームを兼ねる伝動ケース５０、マット苗を載せて左右往復動し苗を一株分づつ各条の苗取出口５１ａ、…に供給するとともに横一列分の苗を全て苗取出口５１ａ、…に供給すると苗送りベルト５１ｂ、…により苗を下方に移送する苗載台５１、苗取出口５１ａ、…に供給された苗を圃場に植付ける苗植付装置５２、…、次行程における機体進路を表土面に線引きする左右一対の線引きマーカ７５等を備えている。苗植付部４の下部には中央にセンターフロート５５、その左右両側にサイドフロート５６，５６がそれぞれ設けられている。これらフロート５５，５６，５６を圃場の泥面に接地させた状態で機体を進行させると、フロート５５，５６，５６が泥面を整地しつつ滑走し、その整地跡に苗植付装置５２、…により苗が植付けられる。各フロート５５，５６，５６は圃場表土面の凹凸に応じて前端側が上下動するように回動自在に取り付けられており、植付作業時にはセンターフロート５５の前部の上下動が迎角制御センサ（図示せず）により検出され、その検出結果に応じ前記昇降油圧シリンダ４６を制御する油圧バルブを切り替えて苗植付部４を昇降させることにより、苗の植付深さを常に一定に維持する。 The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings to the seedling outlet 51a of each row one by one. When all the seedlings are supplied to the seedling outlet 51a, the seedling feed belt 51b is used to transfer the seedlings downward by a seedling feeding belt 51b, and the seedling planting is carried out in the field. Attaching device 52,... Includes a pair of left and right drawing markers 75 for drawing the aircraft path in the next stroke to the topsoil surface. In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the seedling planting device 52, Seedlings are planted by ... Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side moves up and down in accordance with the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. The planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4 according to the detection result. .

施肥装置５は、肥料ホッパ６０に貯留されている粒状の肥料を繰出部６１、…によって一定量づつ繰り出し、その肥料を施肥ホース６２、…でフロート５５，５６，５６の左右両側に取り付けた施肥ガイド（図示せず）、…まで導き、施肥ガイド、…の前側に設けた作溝体（図示せず）、…によって苗植付条の側部近傍に形成される施肥構内に落とし込むようになっている。ブロア用電動モータ５３で駆動するブロア５８で発生させたエアが、左右方向に長いエアチャンバ５９を経由して施肥ホース６２、…に吹き込まれ、施肥ホース６２、…内の肥料を風圧で強制的に搬送するようになっている。 The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... And applies the fertilizer to the left and right sides of the floats 55, 56, 56 with the fertilizer hoses 62,. Guides (not shown), guided to the fertilizer guide, ... Grooves (not shown) provided on the front side of the fertilizer guide, ... are dropped into the fertilization structure formed near the side of the seedling planting strip. ing. Air generated by the blower 58 driven by the blower electric motor 53 is blown into the fertilizer hose 62 through the air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hose 62 is forced by the wind pressure. It is designed to be transported.

苗植付部４には整地装置の一例であるロータ２７（第１ロータ２７ａと第２ロータ２７ｂの組み合わせを単にロータ２７ということがある）が取り付けられている。また、苗載台５１は苗植付部４の全体を支持する左右方向と上下方向に幅一杯の矩形の支持枠体６５の支持ローラ６５ａをレールとして左右方向にスライドする構成である。 The seedling planting unit 4 is provided with a rotor 27 (an example of a combination of the first rotor 27a and the second rotor 27b may be simply referred to as the rotor 27) as an example of a leveling device. In addition, the seedling mount 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame 65 having a full width in the left-right direction and the vertical direction that supports the entire seedling planting unit 4 as a rail.

（予備苗載台）
また、走行車体２の前部左右両側には、補給用の苗を載せておく一対の予備苗載台３８，３８が鉛直方向に伸びた回動軸４９ａ（図４，図５参照）を中心に機体よりも側方に張り出す位置と内側に収納した位置とに回動可能に設けられている。 (Preliminary seedling stand)
In addition, a pair of preliminary seedling platforms 38, 38 on which replenishment seedlings are placed are centered around a rotating shaft 49a (see FIGS. 4 and 5) extending vertically in the front left and right sides of the traveling vehicle body 2. Are provided so as to be pivotable between a position projecting laterally from the body and a position housed inside.

一方の機体側面にある第１予備苗載台３８ａ，第２予備苗載台３８ｂ，第３予備苗載台３８ｃを上下三段に配置した場合の側面図を図３に示し、第１予備苗載台３８ａ，第２予備苗載台３８ｂ，第３予備苗載台３８ｃを同一平面に配置した場合の側面図を図４に示し、第１予備苗載台３８ａ，第２予備苗載台３８ｂ，第３予備苗載台３８ｃを同一平面に配置した場合の平面図を図５に示し、第１予備苗載台３８ａ，第２予備苗載台３８ｂ，第３予備苗載台３８ｃを機体前方から見た正面図を図６に示す。 FIG. 3 shows a side view when the first preliminary seedling stage 38a, the second preliminary seedling stage 38b, and the third preliminary seedling stage 38c on one side of the machine body are arranged in three upper and lower stages. FIG. 4 shows a side view when the stage 38a, the second preliminary seedling stage 38b, and the third preliminary seedling stage 38c are arranged on the same plane, and the first preliminary seedling stage 38a and the second preliminary seedling stage 38b. FIG. 5 shows a plan view when the third preliminary seedling stage 38c is arranged on the same plane, and the first preliminary seedling stage 38a, the second preliminary seedling stage 38b, and the third preliminary seedling stage 38c are arranged in front of the body. FIG. 6 shows a front view as seen from above.

予備苗載台３８はそれぞれ傾斜支持部材で上下三段に構成され、最上段の第１予備苗載台３８ａ、第２予備苗載台３８ｂ及び第３予備苗載台３８ｃからなっている。最上段の第１予備苗載台３８ａの中央部側面と第２予備苗載台３８ｂの最前部側面がそれぞれ回動軸３８ａ１，３８ｂ１の回りに回動自在に第１移動リンク部材３９ａの両端で支持され、また最上段の第１予備苗載台３８ａの最後部側面と最下段の予備苗載台３８ｃの最前部側面が第２移動リンク部材３９ｂの両端でそれぞれ回動軸３８ａ２，３８ｃ１の回りに回動自在に支持され、また第２予備苗載台３８ｂの中央部側面が回動軸３８ｂ２の回りに回動自在に前記第２移動リンク部材３９ｂの中央部で支持され、さらに第２予備苗載台３８ｂの最後部側面と最下段の第３予備苗載台３８ｃの中央部側面とがそれぞれ回動軸３８ｂ３，３８ｃ２の回りに回動自在に第３移動リンク部材３９ｃの両端で支持されている。 Each of the preliminary seedling stage 38 is composed of an inclined support member and is arranged in three stages, and includes a first preliminary seedling stage 38a, a second preliminary seedling stage 38b, and a third preliminary seedling stage 38c. The central side surface of the uppermost first preliminary seedling stage 38a and the foremost side surface of the second preliminary seedling stage 38b are rotatable around the rotation shafts 38a1 and 38b1, respectively, at both ends of the first moving link member 39a. The rearmost side surface of the uppermost first preliminary seedling stage 38a and the frontmost side surface of the lowermost preliminary seedling stage 38c are respectively supported at both ends of the second moving link member 39b around the rotation shafts 38a2 and 38c1. And the central side surface of the second preliminary seedling stage 38b is supported by the central part of the second moving link member 39b so as to be rotatable around the rotary shaft 38b2. The rear side surface of the seedling stage 38b and the central side surface of the lowermost third preliminary seedling stage 38c are supported at both ends of the third moving link member 39c so as to be rotatable around the rotary shafts 38b3 and 38c2, respectively. ing.

第２予備苗載台３８ｂは機体に固定されており、第２予備苗載台３８ｂを中心とし、その上下に第１予備苗載台３８ａと第３予備苗載台３８ｃが配置され、全体として上下三段に配置される状態と第２予備苗載台３８ｂを中心とし、その前後に第１予備苗載台３８ａと第３予備苗載台３８ｃがそれぞれ配置され、全体として第１移動リンク部材３９ａ，第２移動リンク部材３９ｂ，第３移動リンク部材３９ｃをほぼ同一平面上に配置替えすることができる。すなわち、第２移動リンク部材３９ｂは、その中央部が第２予備苗載台３８ｂの中央部の両側に設けられた回動支点により支持されているので、第２移動リンク部材３９ｂを回動させて、第１、第３予備苗載台３８ａ，３８ｃを第２予備苗載台３８ｂの前後に移動させて、第１，第２，第３予備苗載台３８ａ，３８ｂ，３８ｃを同一平面上に配置することで広い苗トレイ載置平面が得られる。 The second preliminary seedling stage 38b is fixed to the body, and the first preliminary seedling stage 38a and the third preliminary seedling stage 38c are arranged above and below the second preliminary seedling stage 38b, and as a whole. The first preliminary seedling stage 38a and the third preliminary seedling stage 38c are respectively arranged before and after the state arranged in the upper and lower three stages and the second preliminary seedling stage 38b, and the first moving link member as a whole. 39a, the second moving link member 39b, and the third moving link member 39c can be rearranged on substantially the same plane. That is, since the center part of the second moving link member 39b is supported by the rotation fulcrums provided on both sides of the center part of the second preliminary seedling stage 38b, the second moving link member 39b is rotated. The first and third preliminary seedling platforms 38a and 38c are moved forward and backward of the second preliminary seedling platform 38b, and the first, second and third preliminary seedling platforms 38a, 38b and 38c are on the same plane. A wide seedling tray mounting plane can be obtained by arranging in the above.

また、第１移動リンク部材３９ａの第２予備苗載台３８ｂの前端部との連結部側、第２移動リンク部材３９ｂの第１予備苗載台３８ａの後端部側の連結部側、第２移動リンク部材３９ｂの第３予備苗載台３８ｃの前端部側の連結部側及び第３移動リンク部材３９ｃの第２予備苗載台３８ｂの後端部側の連結部側は、それぞれ第１移動リンク部材３９ａ，第２移動リンク部材３９ｂ，第３移動リンク部材３９ｃの長手方向に対して直角に折れ曲がって各リンク部材３９ａ，３９ｂ，３９ｃに設けられた短い第１，第２，第３補助リンク４５ａ，４５ｂ，４５ｄを介して第１，第２，第３予備苗載台３８ａ，３８ｂ，３８ｃに回動自在に連結している。また、第１，第２，第３予備苗載台３８ａ，３８ｂ，３８ｃの左右側面には苗トレイの落下を防ぐ第１，第２，第３仕切板４８ａ，４８ｂ，４８ｃを配置している。 The first moving link member 39a is connected to the front end portion of the second preliminary seedling stage 38b, the second moving link member 39b is connected to the rear end side of the first preliminary seedling stage 38a, The connecting part side on the front end side of the third preliminary seedling stage 38c of the second moving link member 39b and the connecting part side on the rear end part side of the second preliminary seedling stage 38b of the third moving link member 39c are respectively first. Short first, second, and third auxiliary members bent at right angles to the longitudinal direction of the moving link member 39a, the second moving link member 39b, and the third moving link member 39c and provided on the link members 39a, 39b, and 39c. Via links 45a, 45b, 45d, the first, second, and third preliminary seedling platforms 38a, 38b, 38c are rotatably connected. In addition, first, second, and third partition plates 48a, 48b, and 48c for preventing the seedling tray from falling are disposed on the left and right side surfaces of the first, second, and third preliminary seedling platforms 38a, 38b, and 38c. .

さらに第１，第２，第３予備苗載台３８ａ，３８ｂ，３８ｃを同一平面上に並べて配置するとき（図４）には、最前部に位置する第１予備苗載台３８ａの前辺と最後部に位置する第３予備苗載台３８ｃの後辺にそれぞれの平面より上方向に立ち上がる第１ストッパ４７ａ、第６ストッパ４７ｆが立ち上がっているので、第１，第２，第３予備苗載台３８ａ，３８ｂ，３８ｃを同一平面上に並べて配置するときに、第１，第２，第３予備苗載台３８ａ，３８ｂ，３８ｃ上に載置された苗トレイが滑り落ちることがない。 Further, when the first, second and third preliminary seedling platforms 38a, 38b and 38c are arranged side by side on the same plane (FIG. 4), the front side of the first preliminary seedling platform 38a located at the foremost part Since the first stopper 47a and the sixth stopper 47f that rise upward from the respective planes are raised on the rear side of the third preliminary seedling stage 38c located at the rearmost part, the first, second, and third preliminary seedlings are placed. When the stands 38a, 38b, and 38c are arranged side by side on the same plane, the seedling trays placed on the first, second, and third preliminary seedling placing stands 38a, 38b, and 38c do not slide down.

また第１移動リンク部材３９ａの第２予備苗載台３８ｂの前端部との連結部にある短い第１補助リンク４５ａと、第２移動リンク部材３９ｂの第１予備苗載台３８ａの後端部との連結部にある短い第２補助リンク４５ｂと、第２移動リンク部材３９ｂの第３予備苗載台３８ｃの前端部との連結部にある短い第３補助リンク４５ｃと、第３移動リンク部材３９ｃの第３予備苗載台３８ｃの後端部との連結部にある短い第４補助リンク４５ｄにはそれぞれ第３、第２、第４、第５ストッパ４７ｃ，４７ｂ，４７ｄ，４７ｅが設けられている。 Moreover, the short 1st auxiliary | assistant link 45a in the connection part with the front-end part of the 2nd reserve seedling stand 38b of the 1st movement link member 39a, and the rear-end part of the 1st reserve seedling stand 38a of the 2nd movement link member 39b A short second auxiliary link 45b at the connecting portion between the first auxiliary link 45b and a short third auxiliary link 45c at the connecting portion between the front end portion of the third preliminary seedling stage 38c of the second moving link member 39b, and a third moving link member Third, second, fourth, and fifth stoppers 47c, 47b, 47d, and 47e are provided on the short fourth auxiliary link 45d that is connected to the rear end portion of the third preliminary seedling stage 38c of 39c. ing.

そして第３、第２、第４、第５ストッパ４７ｃ，４７ｂ，４７ｄ，４７ｅは、それぞれ左右一対の第１、第２、第３補助リンク４５ａ，４５ｂ，４５ｃ，４５ｄと一体に固着されており、第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃが上下三段配置されるときに第１、第２、第３、第４、第５、第６ストッパ４７ａ，４７ｃ，４７ｄ，４７ｅ，４７ｆは図３に示すように全て立ち上がっているので、苗トレイが各ストッパ４７ａ，４７ｂ，４７ｃ，４７ｄ，４７ｅ，４７ｆからずり落ちることを防ぐ。 The third, second, fourth and fifth stoppers 47c, 47b, 47d and 47e are fixed integrally with the pair of left and right first, second and third auxiliary links 45a, 45b, 45c and 45d, respectively. The first, second, third, fourth, fifth and sixth stoppers 47a, 47c, 47d when the first, second, third preliminary seedling platforms 38a, 38b, 38c are arranged in three upper and lower stages. 47e, 47f are all raised as shown in FIG. 3, so that the seedling tray is prevented from sliding off the stoppers 47a, 47b, 47c, 47d, 47e, 47f.

また、図４に示すように第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを同一平面上に並べて配置するときには第２、第５ストッパ４７ｂ、４７ｅが第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃの上平面より下方に移動し、第１、第６ストッパ４７ａ、４７ｆが立ち上がっているので、苗トレイは第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを同一平面上に障害物が無い状態で載置でき、また第１、第６ストッパ４７ａ、４７ｆで滑り落ちることがない。 As shown in FIG. 4, when the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged side by side on the same plane, the second and fifth stoppers 47b and 47e are provided in the first, second, Since the first and sixth stoppers 47a and 47f are raised from the upper plane of the third spare seedling stage 38a, 38b and 38c, the seedling tray is provided with the first, second and third preliminary seedling stages. 38a, 38b, and 38c can be placed on the same plane without any obstacles, and the first and sixth stoppers 47a and 47f do not slide down.

また、図６に示すように第１、第２、第３移動リンク部材３９ａ，３９ｂ，３９ｃは、機体への支持部材４９の内側に配置されているので、上下三段の予備苗載台３８ａ，３８ｂ，３８ｃを同一平面上の一段に配置替えする場合に第１、第２、第３移動リンク部材３９ａ，３９ｂ，３９ｃが回動する過程で操縦者などが稼動する第１、第２、第３移動リンク３９ａ，３９ｂ，３９ｃなどに挟み込まれるおそれがない。 Further, as shown in FIG. 6, the first, second, and third moving link members 39a, 39b, and 39c are arranged inside the support member 49 to the machine body, and therefore, the three-stage reserve seedling stage 38a in the upper and lower stages. , 38b, 38c are rearranged in one step on the same plane, the first, second, third, etc., in which the operator or the like operates in the process of rotating the first, second, third moving link members 39a, 39b, 39c. There is no possibility of being caught in the third moving links 39a, 39b, 39c and the like.

しかも、これらの第１、第２、第３移動リンク３９ａ，３９ｂ，３９ｃを回動させる操作をワンタッチで行うことで、第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを、通常の上下三段に配置される状態と同一平面状に一段に配置替えすることができる。 Moreover, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c can be moved by performing an operation of rotating the first, second, and third movement links 39a, 39b, and 39c with a single touch. It can be rearranged in one step in the same plane as the normal upper and lower three steps.

この第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃの段数の変更は、作業（圃場条件含む）形態により切り替える。例えば、第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを苗トレイなどの補給時には同一平面上に並べ、また苗植付作業時には上下三段とする。また圃場条件が、例えば高畦などで第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを機体の外方又は前方に拡げられないときは上下複数段とし、第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを機体の外方又は前方に展開するのに支障がないときには第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを展開して一段とする。 The change in the number of stages of the first, second, and third preliminary seedling platforms 38a, 38b, and 38c is switched depending on the work (including field conditions) form. For example, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged on the same plane when a seedling tray or the like is replenished, and are arranged in three upper and lower stages during seedling planting work. When the field conditions are, for example, high salmon and the first, second, and third preliminary seedling platforms 38a, 38b, and 38c cannot be expanded outward or forward of the machine body, a plurality of upper and lower stages are provided. When there is no hindrance to deploy the third preliminary seedling stage 38a, 38b, 38c outward or forward of the machine body, the first, second, and third preliminary seedling stage 38a, 38b, 38c are deployed to make one stage. .

また、上下三段からなる第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃを前後に一段の平面状にする切り換えは、苗トレイを載せたまま行うことができる。 In addition, the switching of the first, second, and third preliminary seedling mounting bases 38a, 38b, and 38c, which are composed of three stages on the upper and lower sides, to the front and back, can be performed while the seedling tray is mounted.

また、３つの第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃに代えて２つの第１、第２予備苗載台３８ａ，３８ｂを用いて上下二段又は同一平面上に並べた構成を採用してもよい。 In addition, two first and second preliminary seedling platforms 38a, 38b are used in place of the three first, second, and third preliminary seedling platforms 38a, 38b, and 38c, and are arranged in two vertical stages or on the same plane. Other configurations may be adopted.

予備苗載台３８ａ，３８ｂ，３８ｃを用いる場合と予備苗載台３８ａ，３８ｂを用いる場合にも、上下三段又は上下二段又は同一平面上に並べ替えるときには第１、第２、第３移動リンク部材３９ａ，３９ｂ，３９ｃ又は第１、第２移動リンク部材３９ａ，３９ｂは第１予備苗載台３８ａを機体前方に配置する構成、又は第１予備苗載台３８ａを機体後方に配置する構成のいずれでも良い。 When using the spare seedling stage 38a, 38b, 38c and when using the preliminary seedling stage 38a, 38b, the first, second, and third movements are used when rearranging the upper and lower three stages, the upper and lower stages, or the same plane. The link members 39a, 39b, 39c or the first and second moving link members 39a, 39b have a configuration in which the first preliminary seedling stage 38a is arranged in front of the machine body, or a configuration in which the first preliminary seedling board table 38a is arranged in the rear of the machine body Either of these is acceptable.

また第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃ又は第１、第２予備苗載台３８ａ，３８ｂを用いる場合に上下三段又は上下二段又は同一平面上に並べ替えるときには第１、第２、第３移動リンク部材３９ａ，３９ｂ，３９ｃ又は第１、第２移動リンク部材３９ａ，３９ｂの作動を電動モータ（図示せず）で行ってもよい。このときには電動モータの作動スイッチはオペレーター側とオペレーターとは苗移植機周りの別の場所に居る補助者側の２個所に設けると作業性がよい。 When the first, second, and third preliminary seedling platforms 38a, 38b, and 38c or the first and second preliminary seedling platforms 38a and 38b are used, they are arranged in three upper and lower stages, two upper and lower stages, or on the same plane. The operation of the first, second, third moving link members 39a, 39b, 39c or the first, second moving link members 39a, 39b may be performed by an electric motor (not shown). At this time, if the operation switch of the electric motor is provided at two places on the assistant side, which is in a different place around the seedling transplanter, the operator side and the operator have good workability.

上記第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃ又は第１、第２予備苗載台３８ａ，３８ｂは支持部材４９の回動軸４９ａ（図４，図５）の回りに鉛直方向の仮想回転軸を中心に回転させて機体内側、外側どちらでも鉛直方向のかいてひろげられる構成とすることができる。こうして第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃ又は第１、第２予備苗載台３８ａ，３８ｂを畦際に近づけることができる。 The first, second, and third preliminary seedling platforms 38a, 38b, and 38c or the first and second preliminary seedling platforms 38a and 38b are arranged around the rotation shaft 49a (FIGS. 4 and 5) of the support member 49. By rotating around a virtual rotation axis in the vertical direction, the structure can be extended in the vertical direction both inside and outside the aircraft. Thus, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c or the first and second preliminary seedling platforms 38a and 38b can be brought close to each other.

また、図７（ａ）の側面図、図７（ｂ）の正面図に示すように、第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃ又は第１、第２予備苗載台３８ａ，３８ｂを用いる場合に、第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃ又は第１、第２予備苗載台３８ａ，３８ｂの回動ロック板７３ａを回動させる回動ロックレバー７３ｂを第１、第２、第３予備苗載台３８ａ，３８ｂ，３８ｃ又は第１、第２予備苗載台３８ａ，３８ｂの回動方向と合わせ前後方向に回動操作することができる。 Further, as shown in the side view of FIG. 7A and the front view of FIG. 7B, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c, or the first and second preliminary seedling platforms. When the bases 38a and 38b are used, the first, second and third preliminary seedling mounting bases 38a, 38b and 38c or the first and second preliminary seedling mounting bases 38a and 38b are rotated. The movement lock lever 73b can be rotated in the front-rear direction in accordance with the rotation direction of the first, second, third preliminary seedling stage 38a, 38b, 38c or the first, second preliminary seedling stage 38a, 38b. it can.

回動ロックレバー７３ｂの操作により予備苗載台３８ａ〜３８ｃ又は予備苗載台３８ａ，３８ｂの回動と同時に回動ロックレバー７３ｂの操作が容易となる。このとき苗枠回動ロックレバー７３ｂを予備苗載台３８ａ〜３８ｃ又は予備苗載台３８ａ，３８ｂの支持部材４９の回動ロックピン７３ｃの位置に設けた。このとき苗枠回動ロックレバー７３ｂのロック状態で前側（畦側）に伸びる構成とすることで、前記回動ロックレバー７３ｂを畦側からも田植機側でも行える。なお、支持部材４９と予備苗載台３８ｂを補強板７３ｅで接続している。 The operation of the rotation lock lever 73b facilitates the operation of the rotation lock lever 73b simultaneously with the rotation of the preliminary seedling mounting bases 38a to 38c or the preliminary seedling mounting bases 38a and 38b. At this time, the seedling frame rotation lock lever 73b was provided at the position of the rotation lock pin 73c of the support member 49 of the preliminary seedling mounting bases 38a to 38c or the preliminary seedling mounting bases 38a and 38b. At this time, by setting the seedling frame rotation lock lever 73b in a locked state so as to extend to the front side (the cocoon side), the rotation lock lever 73b can be performed from either the cocoon side or the rice transplanter side. The support member 49 and the spare seedling stage 38b are connected by a reinforcing plate 73e.

回動ロック板７３ａは、移動リンク３９ｂの中央で該リンク３９ｂと一体で回動する中間軸３８ｂ１と一体回動する。回動ロックレバー７３ｂは、支持部材４９に前後回動自在に取り付けられています。回動ロックピン７３ｃは、支持部材４９に進退自在に取り付けられ、ケーブル７３ｄを介して回動ロックレバー７３ｂに連結されている。回動ロック板７３ａには、回動ロックピン７３ｃが入る孔がある。予備苗載せ台３８ａ，３８ｂ，３８ｃが上下複数段に配置された状態で回動ロックピン７３ｃが回動ロック板７３ａの前記孔に入って回動ロック板７３ａの回動を規制する。 The rotation lock plate 73a rotates integrally with the intermediate shaft 38b1 that rotates together with the link 39b at the center of the moving link 39b. The rotation lock lever 73b is attached to the support member 49 so as to be capable of rotating back and forth. The rotation lock pin 73c is attached to the support member 49 so as to freely advance and retract, and is connected to the rotation lock lever 73b via a cable 73d. The rotation lock plate 73a has a hole for receiving the rotation lock pin 73c. The rotation lock pin 73c enters the hole of the rotation lock plate 73a and regulates the rotation of the rotation lock plate 73a in a state where the preliminary seedling mounts 38a, 38b, and 38c are arranged in a plurality of stages.

（苗受部材構成）
次に、苗マット収納装置である予備苗載台３８において苗マットを収納保持する各苗受部材の構成例について説明する。
構成例１の苗受部材８１は、その拡大斜視図を図８に示すように、苗マットＧを前後移動可能に案内支持する通路Ｐを形成した溝型の通路Ｐ部材８２の前後端に苗マットＧの幅寸法Ａを越える出入り開口を確保して通路Ｐの片側に規制部材８３，８３を張出して設ける。これら規制部材８３，８３の前後間を苗マットの長さ寸法Ｂを越える間隔を確保して通路Ｐの途中に苗マットＧを規制部材８３，８３の張出し長さＣの範囲で保持する保持部を形成する。この通路部材８２の前後端に軸支機構８４，８４を構成し、通路Ｐ方向に延びる軸線によって予備苗載台３８のフレーム８５に軸支可能な可動支持機構を構成する。 (Seedling receiving component configuration)
Next, a configuration example of each seedling receiving member that stores and holds a seedling mat in the preliminary seedling mounting table 38 that is a seedling mat storage device will be described.
The seedling receiving member 81 of the configuration example 1, as shown in an enlarged perspective view in FIG. 8, is provided with seedlings at the front and rear ends of a groove-type passage P member 82 having a passage P for guiding and supporting the seedling mat G so as to be movable back and forth. The restricting members 83 and 83 are provided so as to project on one side of the passage P while securing an opening / exit opening exceeding the width dimension A of the mat G. A holding portion for holding the seedling mat G in the range of the protruding length C of the regulating members 83 and 83 in the middle of the passage P by securing a space exceeding the length dimension B of the seedling mat between the front and rear of the regulating members 83 and 83. Form. The shaft support mechanisms 84 and 84 are formed at the front and rear ends of the passage member 82, and a movable support mechanism that can be supported on the frame 85 of the preliminary seedling stage 38 by an axis extending in the direction of the passage P is formed.

苗受部材８１は、図９の通路Ｐの正面視による規制状態（ａ）と解除状態（ｂ）の作用説明図に示すように、側方に所定角度範囲を傾動可能に軸支機構８４，８４によって可動支持する。規制部材８３，８３の側を低く傾斜して苗マットＧを側方に待避する規制状態とし、また、規制部材８３，８３の側を高く傾斜して苗マットＧが出入り開口に臨む解除状態とする。この傾斜切替え保持のために、通路部材８２にレバー８６を一体に設け、このレバー８６をフレーム８５に係止可能に構成する。 The seedling receiving member 81 has a pivotal support mechanism 84 that can tilt a predetermined angle range laterally as shown in the operation explanatory diagram of the restricted state (a) and the released state (b) of the passage P in FIG. A movable support is provided by 84. A regulating state in which the side of the regulating members 83, 83 is inclined low to retract the seedling mat G to the side, and a state in which the side of the regulating members 83, 83 is inclined high so that the seedling mat G faces the opening / closing opening; To do. In order to maintain this inclination switching, a lever 86 is provided integrally with the passage member 82, and the lever 86 can be locked to the frame 85.

上記構成の予備苗載台３８は、図１０の直列展開状態の要部平面図に示すように、複数の苗受部材８１…を機体前端から後方に直線状に連接する直列展開配置として圃場の畦部と苗移植機との間で苗マットＧを積込む場合に、各苗受部材８１を解除状態の位置に保持することにより、苗マットＧを順送り移動して積込み操作を円滑に進めることができる。
また、複数の苗受部材８１…を上下に積重ねた段積収納配置として苗移植機が植付走行する場合に、各苗受部材８１を規制状態の位置に保持することにより、苗受部材上における苗マットＧを規制部材によって確実に保持することができる。 As shown in the plan view of the main part in the serially deployed state in FIG. 10, the preliminary seedling stage 38 having the above-described configuration is configured as a series deployment arrangement in which a plurality of seedling receiving members 81 are linearly connected rearward from the front end of the machine body. When the seedling mat G is loaded between the buttocks and the seedling transplanting machine, the seedling mat G is forwardly moved and the loading operation smoothly proceeds by holding each seedling receiving member 81 in the released state. Can do.
In addition, when the seedling transplanting machine is planted and traveled as a stacked storage arrangement in which a plurality of seedling receiving members 81 are stacked one above the other, by holding each seedling receiving member 81 in a regulated state, The seedling mat G can be securely held by the regulating member.

また、類似の構成として、フレーム８５に規制部材８３，８３を固定し、この規制部材８３，８３を越える角度位置まで傾動可能に通路部材８２を軸支することにより、苗マットＧの大きさと略対応する大きさの通路部材８２を規制状態と解除状態とを切替え可能に構成できることが明らかであることから、その説明を省略する。 Further, as a similar configuration, the regulating members 83 and 83 are fixed to the frame 85, and the passage member 82 is pivotally supported so as to be tiltable to an angular position exceeding the regulating members 83 and 83, so that the size of the seedling mat G is substantially reduced. Since it is clear that the passage member 82 having a corresponding size can be switched between the restricted state and the released state, the description thereof is omitted.

次に、構成例２の苗受部材９１は、その拡大斜視図を図１１に示すように、苗マットＧの幅寸法Ａを越える前後端の開口と苗マットＧの長さ寸法Ｂを越える長さの溝型の通路部材９２と、その前後端の開口の側端から所定長さＣまで固定的に張出す規制部材９３，９３を設け、これら規制部材９３，９３を外れる位置まで通路部材９２を側方にスライド可能に支持するＵ型受９４ａとそのスライド支軸である支持パイプ９４ｂとによるスライド支持機構９４によって予備苗載台３８，３８のフレーム９５に対して側方にスライド支持可能な可動支持機構を構成する。 Next, as shown in FIG. 11, the seedling receiving member 91 of the configuration example 2 has an opening at the front and rear ends exceeding the width dimension A of the seedling mat G and a length exceeding the length dimension B of the seedling mat G. A groove-shaped passage member 92 and restricting members 93 and 93 that are fixedly extended from the side ends of the front and rear end openings to a predetermined length C are provided, and the passage member 92 is moved to a position where the restricting members 93 and 93 are disengaged. Can be slidably supported laterally with respect to the frame 95 of the preliminary seedling stage 38, 38 by a slide support mechanism 94 comprising a U-shaped support 94a that supports the slidable sideways and a support pipe 94b that is a slide support shaft. A movable support mechanism is configured.

苗受部材９１は、図１２の通路Ｐの正面視による規制状態（ａ）と解除状態（ｂ）の作用説明図に示すように、苗受部材９１が規制部材９３，９３に対して進退可能にスライド支持機構９４によって可動支持し、規制部材９３，９３に挟まれるスライド位置を苗マットＧが拘束される規制状態とし、また、規制部材９３，９３から外れるスライド位置を苗マットＧが出入り開口に臨む解除状態とし、このスライド位置を切替え可能に構成する。 The seedling receiving member 91 can be moved forward and backward with respect to the regulating members 93 and 93 as shown in the operation explanatory diagrams of the restricted state (a) and the released state (b) when the passage P in FIG. The slide support mechanism 94 movably supports the slide position between the restriction members 93 and 93 so that the seedling mat G is restricted, and the slide position away from the restriction members 93 and 93 allows the seedling mat G to enter and exit. In this state, the slide position can be switched.

上記構成の予備苗載台３８は、前出の構成例１の苗受部材８１と同様に、複数の苗受部材９１…を機体前端から後方に直線状に連接する直列展開配置として圃場の畦部と苗移植機との間で苗マットＧを積込み取出しする場合に、各苗受部材９１を解除状態の位置に保持することにより、苗マットＧを順送り移動して積込み取出し操作を円滑に進めることができ、また、複数の苗受部材９１…を上下に積重ねた段積収納配置として苗移植機が植付走行する場合に、各苗受部材９１を規制状態の位置に保持することにより、苗受部材上における苗マットＧを規制部材によって確実に保持することができる。また、スライド支持機構９４は、側方に所定角度で傾斜して規制状態を低位側に構成することにより、苗マットＧをその自重により解除状態から切替えて安定して保持することができる。 In the same manner as the seedling receiving member 81 of the configuration example 1 described above, the preliminary seedling mounting base 38 having the above-described configuration has a plurality of seedling receiving members 91... As a series deployment arrangement that linearly connects backward from the front end of the machine body. When the seedling mat G is loaded and taken out between the head and the seedling transplanter, the seedling mat G is forwardly moved and the loading and unloading operation proceeds smoothly by holding each seedling receiving member 91 in the released state. In addition, when the seedling transplanter travels as a stacked storage arrangement in which a plurality of seedling receiving members 91 are stacked one above the other, by holding each seedling receiving member 91 in a restricted state position, The seedling mat G on the seedling receiving member can be reliably held by the regulating member. Further, the slide support mechanism 94 can be stably held by switching the seedling mat G from the released state by its own weight by inclining to the side at a predetermined angle and configuring the restricted state to the lower side.

次に、構成例３の苗受部材１０１は、その拡大斜視図を図１３に示すように、通路部材１０２を溝幅が苗マットＧの幅寸法Ａと対応し、長さが苗マットＧの長さ寸法Ｂと対応する溝状通路に形成し、その後端開口位置に臨んで固定の規制部材１０３を設け、この規制部材１０３を越える角度位置まで後端側を高く傾動可能に通路部材１０２について横断方向の軸線による軸支機構１０４によって軸支することにより、規制状態と解除状態とを切替え可能な可動支持機構を構成する。 Next, in the seedling receiving member 101 of the configuration example 3, as shown in an enlarged perspective view of FIG. 13, the passage member 102 has a groove width corresponding to the width dimension A of the seedling mat G and a length of the seedling mat G. The channel member 102 is formed in a groove-shaped passage corresponding to the length dimension B, and is provided with a fixed restricting member 103 facing the opening position of the rear end, and the rear end side can be tilted highly to an angular position exceeding the restricting member 103. A movable support mechanism that can be switched between a restricted state and a released state is configured by being pivotally supported by a pivotal support mechanism 104 using a transverse axis.

苗受部材１０１の傾斜角については、３段構成の予備苗載台３８の直列展開配置の側面図を図１４に示すように、前端寄りの取込用の苗受部材１０１ａ，１０１ｂの支軸１０４ａ，１０４ｂと後端の保持用の苗受部材１０１ｃの支軸１０４ｃを所定の傾斜角Ｄで後ろ下がりに配置し、この傾斜角Ｄを解除状態としてその通路Ｐ以下の位置に前寄りの苗受部材１０１ａ，１０１ｂの規制部材１０３ａ，１０３ｂを配置して直列展開時の案内通路を確保し、また、段積収納配置においては、通過用の苗受部材１０１ａ，１０１ｂを更に傾斜して規制部材１０３ａ，１０３ｂが突出する角度Ｅを規制状態とすることにより、個々に苗マットＧを保持することができる。 As for the inclination angle of the seedling receiving member 101, as shown in FIG. 14 which is a side view of the three-stage configuration of the preliminary seedling mounting table 38 in series, the support shafts of the seedling receiving members 101 a and 101 b for capturing near the front end 104a, 104b and the supporting shaft 104c of the seedling receiving member 101c for holding the rear end are arranged rearward and downward at a predetermined inclination angle D. The inclination angle D is released and the front seedling is placed at a position below the passage P. The regulating members 103a and 103b of the receiving members 101a and 101b are arranged to secure a guide passage at the time of series deployment, and in the stacked storage arrangement, the passing seedling receiving members 101a and 101b are further inclined to regulate the members. The seedling mat G can be held individually by setting the angle E at which the projections 103a and 103b protrude to the restricted state.

次に、構成例４の苗受部材１１１は、作用説明用の側面図を図１５に示すように、直列展開配置（ａ）において、その前端寄りの取込用の苗受部材１１１ａ，１１１ｂと後端の保持用の苗受部材１１１ｃを所定の傾斜角で後ろ下がりに配置し、この傾斜角を解除状態としてその通路Ｐ以下の位置に前寄りの苗受部材１１１ａ，１１１ｂの規制部材１１３ａ，１１３ｂを配置して直列展開時の案内通路を確保するとともに、対応する苗マットＧの後部が規制部材１１３ａ，１１３ｂに臨む位置を停止位置とし、また、段積収納配置（ｂ）においては、規制部材１１３ａ，１１３ｂを高く突出して苗マットＧ，Ｇを後ろ上がりの角度Ｆに保持して規制状態とすることにより、個々に苗マットＧを保持することができる。 Next, as shown in FIG. 15, the seedling receiving member 111 of the configuration example 4 is a side view for explaining the action. The rear-end holding seedling receiving member 111c is disposed rearward and downward at a predetermined inclination angle, and the inclination angle is released and the regulation members 113a of the front seedling receiving members 111a and 111b are placed at positions below the passage P. 113b is arranged to secure a guide passage at the time of series deployment, and the position where the rear part of the corresponding seedling mat G faces the regulating members 113a and 113b is set as a stop position. The seedling mats G can be held individually by projecting the members 113a and 113b high and holding the seedling mats G and G at the rearwardly rising angle F so as to be in the restricted state.

この場合において、規制部材１１３ａ，１１３ｂは、図１６の単体構成拡大図に示すように、リンク連動のピン１１５の作用を受ける連動アーム１１６によって所定高さまで立ち上がるように戻しバネ付き支軸１１７に軸支することにより、段積収納配置と直列展開配置の切替えと連動動作可能に構成することができる。 In this case, the restricting members 113a and 113b are pivoted on the support shaft 117 with the return spring so that it rises to a predetermined height by the interlocking arm 116 that receives the action of the link interlocking pin 115, as shown in the enlarged view of the single unit configuration in FIG. By supporting, it can be configured to be capable of interlocking operation and switching between the stacking storage arrangement and the series development arrangement.

次に、構成例５の苗受部材は、直列展開配置の側面図を図１７に示すように、前端寄りの取込用の苗受部材１２１ａ，１２１ｂと後端の保持用の苗受部材１２１ｃを所定の傾斜角で後ろ下がりに配置し、この傾斜角を解除状態としてその通路Ｐ以下の位置に前寄りの苗受部材１２１ａ，１２１ｂの規制部材１２３ａ，１２３ｂを配置して直列展開時の案内通路を確保するとともに、対応する苗マットＧの後部が規制部材１２３ａ，１２３ｂに臨む位置を停止位置とし、これら規制部材１２３ａ，１２３ｂは、図１８の要部拡大図に示すように、リンクの回動に連動して苗マットＧの底面に作用する位置まで立ち上がるように支軸１２５によって回動可能に軸支する。 Next, as shown in FIG. 17, the seedling receiving member of the configuration example 5 includes a seedling receiving member 121a, 121b for capturing near the front end and a seedling receiving member 121c for holding the rear end, as shown in FIG. Are arranged in a rearward and downward direction with a predetermined inclination angle, and the restriction members 123a and 123b of the front seedling receiving members 121a and 121b are arranged at positions below the passage P with the inclination angle being released, and guidance when deployed in series. While securing the passage, the position where the rear part of the corresponding seedling mat G faces the restricting members 123a and 123b is set as a stop position, and these restricting members 123a and 123b are rotated as shown in the enlarged view of the main part in FIG. It is pivotally supported by the support shaft 125 so as to rise to a position where it acts on the bottom surface of the seedling mat G in conjunction with the movement.

規制部材１２３ａ，１２３ｂは、図１９の単体構成の斜視図に示すように、先端が上方に折れ曲がって苗マットＧの底面を係止可能な歯１２６を設け、または、図２０の単体構成の斜視図に示すように、先端が苗マットＧの底面を拘束可能なギザギザ形状１２７に形成することにより、規制状態において個々に苗マットＧを保持することができる。 As shown in the perspective view of the single unit configuration in FIG. 19, the regulating members 123a and 123b are provided with teeth 126 whose front ends are bent upward and can lock the bottom surface of the seedling mat G, or in the single unit perspective view of FIG. As shown in the drawing, the seedling mat G can be held individually in the restricted state by forming the tip with a jagged shape 127 capable of restraining the bottom surface of the seedling mat G.

次に、規制部材の連動操作機構について説明する。
各苗受部材１３１ａ，１３１ｂ，１３１ｃのフレーム（不図示）には、図２１の要部拡大斜視図に示すように、直列展開配置において軸線を共通する支軸１３２ａ，１３２ｂ，１３２ｃを軸支し、上段および中段の規制部材１３３ａ，１３３ｂを対応する支軸１３２ａ，１３２ｂの後端に取付け、これらの規制部材１３３ａ，１３３ｂの後側にピン１３４ａ，１３４ｂを突設し、このピン１３４ａ，１３４ｂと係合可能な張出部を設けた係合プレート部材１３５ｂ，１３５ｃを中段および下段の支軸１３２ｂ，１３２ｃの前端に取付け、ピン１３４ａ，１３４ｂが上から係合プレート部材１３５ｂ，１３５ｃに係合可能に構成し、上段の規制部材１３３ａに解除操作用のレバー１３６ａを設け、下段の係合プレート部材１３５ｃに規制操作用のレバー１３６ｃを取付けることにより、上段および中段の規制部材１３３ａ，１３３ｂの連動操作機構を構成する。 Next, the interlocking operation mechanism of the regulating member will be described.
As shown in the enlarged perspective view of the main part of FIG. 21, the support shafts 132a, 132b, and 132c that share the same axis line are supported on the frames (not shown) of the seedling receiving members 131a, 131b, and 131c. The upper and middle regulating members 133a and 133b are attached to the rear ends of the corresponding support shafts 132a and 132b, and pins 134a and 134b are provided on the rear side of the regulating members 133a and 133b. Engagement plate members 135b and 135c provided with engageable overhangs are attached to the front ends of the middle and lower support shafts 132b and 132c, and the pins 134a and 134b can be engaged with the engagement plate members 135b and 135c from above. The release lever 136a is provided on the upper restriction member 133a, and the lower engagement plate member 135c is provided for the restriction operation. By mounting the lever 136c, constituting the upper and middle of the regulating member 133a, the interlock operating mechanism 133b.

上記構成の連動操作機構は、図２２の側面視による作用説明図に示すように、ピン１３４ａ，１３４ｂが上から係合プレート部材１３５ｂ，１３５ｃに係合する簡易な構成により、前端の苗受部材１３１ａは上段位置に、後端の苗受部材１３１ｃは下段位置に移動復帰可能であり、直列展開配置においては、解除操作用のレバー１３６ａによって上段の規制部材１３３ａを下降させると、そのピン１３４ａの係合を受ける係合プレート部材１３５ｂから支軸１３２ｂを介して中段の規制部材１３３ｂが下降して解除位置に連動操作することができ、また、下段の規制操作用のレバー１３６ｃによって下段の係合プレート部材１３５ｃを上昇させると、その係合を受けるピン１３４ｂによって中段の規制部材１３３ｂが上昇するとともに、支軸１３２ｂおよび中段の係合プレート部材１３５ｂを介して上段の規制部材１３３ａが上昇して規制位置に連動操作することができる。 The interlocking operation mechanism having the above-described configuration has a simple structure in which the pins 134a and 134b engage with the engagement plate members 135b and 135c from above, as shown in the side view of FIG. 131a can be moved back to the upper stage position, and the rear end seedling receiving member 131c can be moved back to the lower stage position. In the series deployed arrangement, when the upper regulating member 133a is lowered by the release operation lever 136a, the pin 134a The middle restriction member 133b can be lowered from the engagement plate member 135b to be engaged via the support shaft 132b and operated in conjunction with the release position, and the lower engagement member 136c can be operated by the lower restriction operation lever 136c. When the plate member 135c is raised, the middle regulating member 133b is raised by the pin 134b receiving the engagement, and the support shaft Upper regulating member 133a via 32b and the middle of the engaging plate member 135b can be coordinated operating the restricting position to rise.

１田植機（苗移植機）
２走行車体
４苗植付部（植付装置）
３８予備苗載台
３９ａリンク部材（平行リンク）
３９ｂリンク部材（平行リンク）
３９ｃリンク部材（平行リンク）
８１苗受部材
８２通路部材
８３規制部材
８４軸支機構（可動支持機構）
９１苗受部材
９２通路部材
９３規制部材
９４スライド支持機構（可動支持機構）
１０１苗受部材
１０２通路部材
１０３規制部材
１０４軸支機構（可動支持機構）
Ａ幅寸法
Ｂ長さ寸法
Ｃ張出し長さ
Ｄ傾斜角度
Ｅ傾斜角度
Ｇ苗マット
Ｐ通路 1 Rice transplanter (seedling transplanter)
2 Traveling body 4 Seedling planting part (planting device)
38 Preliminary seedling stage 39a Link member (parallel link)
39b Link member (parallel link)
39c Link member (parallel link)
81 seedling receiving member 82 passage member 83 regulating member 84 shaft support mechanism (movable support mechanism)
91 seedling receiving member 92 passage member 93 regulating member 94 slide support mechanism (movable support mechanism)
101 Seedling receiving member 102 Passage member 103 Restricting member 104 Shaft support mechanism (movable support mechanism)
A Width dimension B Length dimension C Overhang length D Inclination angle E Inclination angle G Seedling mat P Passage

Claims

A traveling vehicle body (2) capable of traveling on the field by the control unit (31), a planting device (4) for sequentially planting a seedling from the seedling mat (G) to the field at the rear of the traveling vehicle body (2), and this In a seedling transplanting machine provided with a preliminary seedling placing stand (38) for accommodating and holding a seedling mat (G) for introduction into the planting device (4) at the outer side of the control unit (31),
The preliminary seedling stage (38) includes a seedling receiving member (81, 91, 101) having a passage (P) for guiding and supporting the seedling mat (G) so as to be movable back and forth, and the seedling receiving member (81, 91). , 101) on the passage (P), the regulating member (83, 93, 103) for regulating the movement of the seedling mat (G) and the seedling receiving member (83, 93, 103) up to a position where the regulating member (83, 93, 103) is avoided. 81, 91, 101) comprising a movable support mechanism (84, 94, 104) for movable support.

The movable support mechanism supports the seedling receiving member (81) so that the seedling receiving member (81) can be tilted laterally by a support shaft in the direction of the path (P) until the passage (P) of the seedling receiving member (81) is disengaged from the regulating member (83). The seedling transplanting machine according to claim 1, wherein the seedling transplanting machine is formed by a shaft support mechanism (84).

The movable support mechanism is a shaft that supports the seedling receiving member (101) so that the seedling receiving member (101) can be tilted in the front-rear direction by a support shaft in the passage crossing direction until the passage (P) of the seedling receiving member (101) is disengaged from the regulating member (103). The seedling transplanter according to claim 1, wherein the seedling transplanter is formed by a support mechanism (104).

The movable support mechanism is a slide support that supports the seedling receiving member (91) so that the seedling receiving member (91) can be laterally moved by a slide axis in the passage crossing direction until the passage (P) of the seedling receiving member (91) is disengaged from the regulating member (93). The seedling transplanter according to claim 1, wherein the seedling transplanter is formed by a mechanism (94).

A plurality of the seedling receiving members (81, 91, 101) are connected by parallel links (39a, 39b, 39c), stacked in a vertical direction, and accommodated and held for the seedling mat (G), and the front end of the body The seedling transplanting machine according to claim 1, wherein the seedling transplanting machine is configured to be able to be switched to a serially deployed arrangement in which the seedling mat (G) can be moved forward in a straight line from the rear to the rear.