JP6971832B2 - Seedling planting device - Google Patents

Description

The present invention slidably supports a seedling stand that can be reciprocated in the width direction of the machine body and an end portion of the seedling stand on the lower side in the vertical feed direction of seedlings, and has a sliding guide rail having a seedling take-out outlet. With a seedling planting mechanism that has a planting claw, the planting claw passes through the seedling outlet, the seedling is taken out from the seedling stand, and the taken out seedling is carried down to the field and planted. Regarding the seedling planting device equipped with.

Some of the above-mentioned seedling planting devices are supported by a sliding guide rail and provided with a seedling removal guide that guides the seedling removal by the planting claws. The seedling take-out guide has a take-out guide plate portion extending downward from both sides of the seedling take-out outlet, and an outlet guide portion that enters the seedling take-out outlet and runs along the take-out outlet edge of the seedling take-out outlet. ..
As a seedling extraction guide of this kind, for example, there is a seedling extraction guide shown in Patent Document 1.
The seedling extraction guide shown in Patent Document 1 includes a pair of left and right guide bodies, and a portion along the outlet edge of the seedling extraction outlet and having a chamfer. The guide body corresponds to the take-out guide plate portion, and the chamfered portion corresponds to the take-out guide portion.

Japanese Unexamined Patent Publication No. 2007-135421

When the planting claws pass through the seedling take-out outlet and scrape the seedlings for planting from the seedlings on the seedling stand, the take-out guide part in the seedling take-out guide exerts a fixed blade function, so that the take-out guide part is the seedling. It tends to be worn by cutting the floor soil. As the outlet guide part is worn away, the part around the seedling outlet on the sliding guide rail will function as a fixed blade instead of the outlet guide part, and the part around the seedling outlet on the sliding guide rail will be used. Tends to wear out. When the portion of the sliding guide rail around the seedling take-out outlet is worn out, the seedling take-out outlet of the sliding guide rail becomes wider and the size of the seedling for planting taken out by the planting claw becomes large. Further, when the sliding guide rail is to be replaced, since the sliding guide rail is a long object, it takes time to attach and detach it, and the replacement cost is high. In a seedling planting device with a large number of planting rows, the length of the sliding guide rail is long, which is more time-consuming and more expensive.

The present invention provides a seedling planting device that can easily avoid attrition of sliding guide rails at low cost.

The seedling planting apparatus according to the present invention
A seedling stand that can be reciprocated in the width direction of the aircraft,
The end of the seedling stand on the lower side in the vertical feed direction of the seedlings is slidably supported, and the end of the seedling take-out outlet and the end on both sides of the seedling take-out outlet on the lower side in the vertical feed direction of the seedlings. A sliding guide rail with a seedling receiving part that can be slidably received and supported from below,
A seedling planting mechanism having a planting claw, the planting claw passing through the seedling outlet, taking out the seedling from the seedling stand, and descending and transporting the taken out seedling to the field for planting.
A seedling removal guide, which is supported by the sliding guide rail and guides the seedling removal by the planting claw, is provided.
The seedling extraction guide is
A connecting portion connected to the sliding guide rail and
A take-out guide plate extending downward from both sides of the seedling take-out outlet, and
It has an outlet guide portion that enters the seedling outlet and is along the outlet edge of the seedling outlet.
The width of the seedling take-out outlet in the take-out guide portion in the inward and outward directions is wider than the plate thickness of the take-out guide plate portion.
The connecting portion has a horizontal connecting flange located on the back surface side of the seedling receiving portion on both lateral sides of the seedling outlet.
On the surface side of the seedling receiving portion, a reinforcing plate that suppresses wear due to friction with the nursery soil portion of the seedling receiving portion is provided.
The outlet guide portion protrudes toward the surface side of the seedling receiving portion with respect to the horizontal connecting flange , and at the end surface projecting toward the surface side of the seedling receiving portion, the outlet guide portion is different from the seedling receiving portion side of the reinforcing plate. It is flush with the opposite side .

According to this configuration, since the width of the outlet guide section in the inside and outside of the seedling outlet is wide, the outlet guide section is worn away and the part around the seedling outlet in the sliding guide rail is fixed in place of the seedling extraction guide. The wear allowance of the outlet guide part becomes large until the blade function is exhibited. Then, when the outlet guide part is worn out and the sliding guide rail exerts the fixed blade function, the size of the seedling for planting taken out by the planting claw and the take-out guide part are worn out. The difference from the size of the planting seedlings taken out by the planting claws before becomes large, and it is easy to find the change in the size of the planting seedlings taken out by the planting claws. If it is easy to find the change in the size of the seedlings for planting, it is easy to judge how much the outlet guide part in the seedling extraction guide has been worn out based on the change in the size of the seedlings for planting. It becomes easy to replace the seedling take-out guide until the part is worn out and the sliding guide rail exerts the fixed blade function.

Therefore, it becomes easy to avoid the wear of the sliding guide rail by an inexpensive measure that only makes the width of the outlet guide portion of the seedling extraction guide wider in the inside and outside directions than the plate thickness of the seedling extraction guide plate portion.
According to this configuration, the reinforcing plate suppresses the abrasion of the sliding guide rail due to friction with the seedlings at the seedling receiving portion, so that the sliding guide rail can be used for a long period of time.

In the present invention
The sliding guide rail has a stopper portion that stands up from the seedling receiving portion and receives the end surface on the lower side in the vertical feeding direction of the seedlings.
The seedling outlet has a horizontal mouth portion formed in the seedling receiving portion and a vertical mouth portion formed in the stopper portion.
The outlet guide portion is along the horizontal mouth edge portion corresponding to the horizontal mouth portion of the outlet edge and the vertical mouth edge portion corresponding to the vertical mouth portion of the outlet edge. ,
The connecting portion has a vertical connecting flange located on the back surface side of the stopper portion on both lateral sides of the seedling outlet.
A reinforcing plate is provided on the surface side of the stopper portion to prevent the stopper portion from being worn by friction with the nursery soil portion.
The outlet guide portion protrudes toward the surface side of the stopper portion with respect to the vertical connecting flange , and has an end surface projecting toward the surface side of the stopper portion, which is opposite to the stopper portion side of the reinforcing plate. It is preferable that it is flush with the surface.

According to this configuration, when the seedlings for planting are taken out, the vertical edge at the seedling outlet of the sliding guide rail becomes a fixed blade, and the horizontal edge at the seedling outlet of the sliding guide rail is fixed. Since it is also prevented from becoming a blade by the outlet guide portion in the seedling extraction guide, it is easier to avoid the abrasion of the sliding guide rail.

It is a left side view which shows the whole of a passenger type rice transplanter. It is a top view which shows the seedling planting apparatus. It is a side view which shows the seedling take-out part of a seedling planting apparatus. It is a top view which shows the seedling take-out part of a sliding guide rail. FIG. 4 is a cross-sectional view taken along the line VV of FIG. It is a perspective view which shows the seedling take-out outlet of a sliding guide rail, and a seedling take-out guide.

Hereinafter, a case where the embodiment of the seedling planting apparatus according to the present invention is applied to a passenger-type rice transplanter will be described with reference to the drawings.

FIG. 1 is a side view showing the entire passenger-type rice transplanter. The direction [F] shown in FIG. 1 is the front direction of the traveling machine 1, the direction [B] is the rear direction of the traveling machine 1, the direction on the front side of the paper is the left direction of the traveling machine 1, and the direction on the back side of the paper is the traveling machine 1. Defined as the right direction of.

[Overall passenger-type rice transplanter]
As shown in FIG. 1, the passenger-type rice transplanter has an airframe frame 4 composed of a mission case 2, a rear frame 3, and the like, and is steerably and driveably equipped on the front portion of the airframe frame 4. It is equipped with a self-propelled vehicle having a pair of left and right front wheels 5 and a pair of left and right rear wheels 6 movably equipped at the rear of the fuselage frame 4. A driving portion 8 having an engine 7 is provided at the front portion of the self-propelled vehicle. The power of the engine 7 is input to the mission case 2 and transmitted from the mission case 2 to the front wheels 5 and the rear wheels 6. A driving unit 9 is provided at the rear of the self-propelled vehicle. The driver unit 9 is provided with a steering wheel 11 for steering and operating the driver's seat 10 and the front wheels 5. The self-propelled vehicle is configured to be a passenger type so as to be driven by boarding the driving unit 9. A seedling planting device 13 is connected to the rear part of the machine frame 4 via a link mechanism 12. The link mechanism 12 is supported by the machine frame 4 in a state of being swung up and down by the expansion and contraction operation of the hydraulic cylinder 14. The seedling planting device 13 is operated to move up and down between a descending work state in which the grounding float 15 descends to the field scene and touches the ground by the raising and lowering operation of the link mechanism 12, and an ascending non-working state in which the grounding float 15 rises from the field scene. NS. The seedling planting device 13 has a feed case 16 and is driven by the power input from the engine 7 to the mission case 2 from the mission case 2 to the feed case 16 via the rotating shaft 17.

In the passenger-type rice transplanter, the seedling planting device 13 is lowered to the descending work state, and the self-propelled vehicle is run in this state, so that the seedling planting operation is performed by the seedling planting device 13 to plant seedlings in the field.

[Structure of seedling planting device]
As shown in FIGS. 1 and 2, the seedling planting device 13 includes a planting machine 20 composed of a main frame 21 and the like, eight seedling planting mechanisms 25, one seedling stand 60, and five grounding floats 15. It is configured so that the seedling planting work of 8-row planting is possible. In detail, it is configured as follows.

As shown in FIGS. 1 and 2, the planting machine 20 has four planting drive cases 22 in addition to the main frame 21. The main frame 21 extends in the lateral width direction of the planting machine 20 at the front portion of the planting machine 20. The four planting drive cases 22 extend rearward from the main frame 21 in a state of being arranged at intervals in the lateral width direction of the planting machine 20.

As shown in FIGS. 1 and 2, the eight seedling planting mechanisms 25 are mounted on the planting machine 20 in a state in which one is driveably supported on each side of the rear portion of each of the four planting drive cases 22. It is equipped. Each seedling planting mechanism 25 includes a rotary rotor 26 rotatably supported by the planting drive case 22 and a pair of planting arms 27 distributed to both ends of the rotary rotor 26 and supported rotatably. ing. A planting claw 28 is supported at the tip of each of the pair of planting arms 27.

As shown in FIGS. 1 and 2, a sliding guide rail 30 extending in the lateral width direction of the planting machine 20 is supported by the planting drive case 22 on the front side of the seedling planting mechanism 25. As shown in FIGS. 3 and 6, the sliding guide rail 30 is made of an aluminum alloy material. The sliding guide rail 30 has a seedling receiving portion 31 and a stopper portion 32 rising from the end of the seedling receiving portion 31. A seedling outlet 33 is formed at a portion corresponding to each of the eight seedling planting mechanisms 25 of the sliding guide rail 30. The seedling outlet 33 is formed over the seedling receiving portion 31 and the stopper portion 32, and has a horizontal opening portion 34 formed in the seedling receiving portion 31 and a vertical opening portion 35 formed in the stopper portion 32.

In each seedling planting mechanism 25, the seedling planting mechanism 25 is driven by the power input from the feed case 16 to the planting drive case 22, and in each of the pair of planting claws 28, the tip end side of the planting claws 28 passes through the seedling take-out outlet 33 from above. Then, it descends to the field, rises from the field, and rotates up and down in a state of returning to the upper side of the seedling take-out outlet 33, so that the seedlings can be taken out from the seedling mounting table 60 by the planting claw 28, and is planted. Seedlings can be planted with the claws 28.

As shown in FIGS. 3, 4 and 5, the seedling take-out guide 40 is supported at each of the portions of the sliding guide rail 30 where the eight seedling take-out outlets 33 are formed. The eight seedling extraction guides 40 have the same configuration. The eight seedling extraction guides 40 are configured as follows.

As shown in FIGS. 3, 4, 5 and 6, the seedling extraction guide 40 is manufactured by molding a resin material and is made of resin. The seedling take-out guide 40 has a pair of left and right connecting portions 41, a pair of left and right take-out guide plate portions 45, and an outlet guide portion 50.

The seedling take-out guide 40 is supported by the sliding guide rail 30 by connecting the left and right connecting portions 41 to the sliding guide rail 30 by connecting bolts 42.

More specifically, as shown in FIGS. 4 and 5, the left and right connecting portions 41 are arranged in the longitudinal direction of the sliding guide rail 30 (horizontal width direction of the seedling outlet 33) with the seedling outlet 33 interposed therebetween. The left and right connecting portions 41 have a horizontal connecting flange 41a and a vertical connecting flange 41b. In the left and right connecting portions 41, the horizontal connecting flange 41a is located on the back surface side of the seedling receiving portion 31, the vertical connecting flange 41b is located on the back surface side of the stopper portion 32, and the vertical connecting flange 41b is connected by the connecting bolt 42. By being connected to the stopper portion 32, it is connected to the sliding guide rail 30.

As shown in FIGS. 4 and 5, the outlet guide portion 50 enters the seedling outlet 33 of the sliding guide rail 30 and is along the outlet edge 36 of the seedling outlet 33. More specifically, the outlet guide unit 50 has a horizontal port guide unit 50A and a vertical port guide unit 50B.

As shown in FIGS. 4, 5 and 6, the lateral guide portion 50A has a pair of left and right front-rear guide portions 51 and a lateral guide portion 52 connected to the front end side of the left and right front-rear guide portions 51. There is. The left and right front-back guide portions 51 and the lateral guide portions 52 project upward from the left and right lateral connecting flanges 41a and enter the lateral opening portion 34 of the seedling take-out outlet 33. The left front-rear guide portion 51 is along the left side opening portion edge 36a in the side opening portion 34. The right front-rear guide portion 51 is along the right side opening portion edge 36a of the side opening portion 34. The sideways guide portion 52 is along the front side mouth portion edge 36b of the side mouth portion 34. The sideways guide portion 52 is a connecting member that connects the left and right connecting portions 41.

The vertical guide portion 50B has a pair of left and right vertical guide portions 53. The left and right vertical guide portions 53 project forward from the left and right vertical connecting flanges 41b and enter the vertical opening portion 35 of the seedling take-out outlet 33. The left vertical guide portion 53 is along the left vertical opening portion edge 36c in the vertical opening portion 35. The right vertical guide portion 53 is along the right vertical opening portion edge 36c in the vertical opening portion 35.

In the present embodiment, the outlet guide portion 50 has a horizontal opening guide portion 50A and a vertical opening guide portion 50B, and the outlet guide portion 50 has the horizontal opening portion edges 36a, 36b and the vertical opening of the outlet edges 36. The configuration along the portion edge 36c is adopted, but the structure is not limited to this, and the outlet guide portion 50 does not include the vertical opening guide portion 50B, and is among the horizontal opening portion edges 36a and 36b and the vertical opening portion edge 36c. A configuration may be adopted along only the lateral mouth edges 36a and 36b. That is, the "outlet guide portion 50 along the outlet edge 36 of the seedling take-out outlet 33" in the present invention is not provided with the "vertical mouth guide portion 50B" and is the lateral mouth of the outlet edge 36 of the seedling take-out outlet 33. The take-out guide portion along only the horizontal mouth portion edges 36a and 36b of the portion edges 36a and 36b and the vertical mouth portion edges 36c is included.

As shown in FIGS. 3, 4, and 5, the pair of left and right take-out guide plate portions 45 extend downward from both sideways of the seedling take-out outlet 33. A path is formed between the left and right take-out guide plate portions 45 for the planting claw 28 and the planting seedlings taken out by the planting claw 28 to descend from the seedling take-out outlet 33, and is taken out by the planting claw 28. The seedlings for planting are guided by the left and right take-out guide plate portions 45 and descend from the seedling take-out outlet 33. The left take-out guide plate portion 45 of the pair of left and right take-out guide plate portions 45 extends downward from the left side of the seedling take-out outlet 33 by extending downward from the left connecting portion 41. The right take-out guide plate portion 45 of the pair of left and right take-out guide plate portions 45 extends downward from the right side of the seedling take-out outlet 33 by extending downward from the right connecting portion 41.

As shown in FIGS. 4, 5 and 6, the width W of the seedling outlet 33 of the outlet guide portion 50 in the inside / outside direction is the width W of the side mouth portion 34 of the left / right front / rear guide portion 51 in the inside / outside direction. W1, the width of the horizontal mouth portion 34 of the horizontal guide portion 52 in the inner and outer directions is W2, the width of the vertical mouth portion 35 of the left and right vertical guide portions 53 is W3, and the left and right take-out guide plate portions 45. Let T be the plate thickness of. The seedling extraction guide 40 is manufactured in a state where W1 is wider than T, W2 is wider than T, and W3 is wider than T. Even if the outlet guide unit 50 is worn out due to friction between the outlet guide unit 50 and the nursery soil portion, the W is wider than T, so that the outlet guide unit 50 can be used for a long period of time.

As shown in FIGS. 3, 4 and 5, an extension guide member 46 for extending the take-out guide plate portion 45 downward is provided on the side opposite to the planting claw passage side of the left and right take-out guide plate portions 45. The extension guide member 46 extends downward from the connecting portion 41 along the descending path of the planting claw 28. The upper end side of the extension guide member 46 is supported by the sliding guide rail 30 by co-tightening with the connecting portion 41. The upper end side of the extension guide member 46 is also engaged with a support protrusion 55 provided on the take-out guide plate portion 45. As shown in FIG. 3, a front guide plate 47 is provided between the left and right extension guide members 46. The upper end side of the front guide plate 47 is supported by a support portion 54 provided over the take-out guide plate portion 45. A support portion 46a for supporting the left and right extension guide members 46 is provided in the middle of the front guide plate 47 in the vertical direction.

As shown in FIG. 1, the seedling mounting table 60 is supported by the support column member 61 and the sliding guide rail 30 in an inclined posture located toward the rear side of the planting machine toward the lower end side (lower side in the vertical feeding direction of seedlings). There is. As shown in FIG. 2, the seedling placing table 60 is formed with eight seedling placing portions 60a on which the seedlings supplied to the eight seedling planting mechanisms 25 are arranged side by side in the width direction of the planting machine 20. There is. The end of the lower end side (lower side in the vertical feeding direction of seedlings) of the seedlings placed on each seedling placing portion 60a protrudes from the seedling placing portion 60a toward the seedling take-out outlet 33, and the protruding end is a sliding guide. The seedling receiving portion 31 of the rail 30 is slidably received and supported from below, and the end face on the lower side in the vertical feeding direction of the seedlings at the protruding end is slidably received and supported by the stopper portion 32 of the sliding guide rail 30. ..
As shown in FIGS. 4, 5 and 6, a reinforcing plate 30p is provided on the seedling receiving surface side of the sliding guide rail 30. The reinforcing plate 30p is provided over the seedling receiving portion 31 and the stopper portion 32. The reinforcing plate 30p is fixed to the sliding guide rail 30 by co-tightening with the seedling taking-out guide 40 by the connecting bolt 42. The reinforcing plate 30p is made of a stainless steel plate. Attrition of the sliding guide rail 30 due to friction between the sliding guide rail 30 and the nursery soil portion is suppressed by the reinforcing plate 30p.

The support column member 61 is erected on the front portion of the planting machine 20 and supports the upper end side of the seedling mounting table 60 so as to be reciprocally movable in the lateral width direction of the planting machine 20. As shown in FIG. 3, the lower end portion of the seedling stand 60 reciprocates in the lateral width direction of the planting machine 20 to the support portion 30a of the sliding guide rail 30 via the connecting member 62 connected to the seedling stand 60. It is slidably supported. The seedling stand 60 is supported in a state where it can reciprocate in the lateral width direction of the planting machine 20 with respect to the eight seedling planting mechanisms 25.

A seedling lateral feed drive mechanism (not shown) is provided over the seedling mounting table 60 and the feed case 16. The seedling mounting table 60 is reciprocally transferred in the lateral width direction of the planting machine 20 in conjunction with the seedling planting movement of the seedling planting mechanism 25 by the seedling lateral feeding drive mechanism, and the seedlings are placed on each seedling placing portion 60a. Is reciprocated with respect to the sliding guide rail 30. That is, the lower end of the seedling supported by the sliding guide rail 30 is reciprocated from one end to the other end in the width direction of the seedling with respect to the seedling outlet 33, and the planting claw 28 is moved to the seedling outlet. Seedlings are taken out from the lower end of the seedlings at 33, and the seedlings are taken out sequentially from one end to the other end in the width direction of the seedlings with respect to the seedling planting mechanism 25. Will be supplied.

As shown in FIG. 2, the seedling vertical feed belt 63 is provided on the eight seedling placing portions 60a of the seedling placing table 60. A seedling vertical feed drive mechanism (not shown) is provided over the belt drive wheel body (not shown) around which the transport end side of each seedling vertical feed belt 63 is wound and the feed case 16. When the seedling mounting table 60 reaches the left and right stroke ends of the horizontal feed, the seedling vertical feed belt 63 of each seedling mounting portion 60a is driven only by the set slot talk by the seedling vertical feed drive mechanism, and is mounted on each seedling mounting portion 60a. The placed seedlings are vertically fed toward the seedling outlet 33 by the seedling vertical feed belt 63 by a length corresponding to the length of the seedlings taken out in the vertical direction by the seedling planting mechanism 25.

In the seedling planting device 13, seedlings are alternately planted by a pair of planting claws 28 in each of the seedling planting mechanisms 25 of 8.

That is, in each of the pair of planting arms 27, the tip end side of the planting claw 28 passes through the seedling outlet 33 from above. The tip end side of the planting claw 28 passing through the seedling take-out outlet 33 acts on the seedling portion located at the seedling take-out outlet 33 among the seedlings placed on the seedling placement portion 60a. At this time, the outlet guide portion 50 of the seedling extraction guide 40 serves as a fixed blade for the seedling portion, and the seedling portion is sheared, and the seedling portion placed on the seedling placement portion 60a is used as a seedling for planting. Taken out by 28. The lower end of the seedlings placed on the seedling placing portion 60a is sequentially supplied to the seedling outlet 33 from one end to the other end in the width direction of the seedlings, and the seedlings are laterally transferred by the seedling placing table 60. When the feed reaches the left and right stroke ends, the seedlings placed on the seedling placing portion 60a are vertically fed to the seedling take-out outlet 33. As a result, the seedlings for planting are sequentially taken out by the planting claws 28 from one end to the other end in the lateral width direction of the seedlings placed on the seedling placing portion 60a.

When the seedlings for planting are taken out by the planting claws 28, they are held by the planting claws 28 and are planted while being guided by the take-out guide plate portion 45 in the seedling taking-out guide 40, the extension guide member 46 and the front guide plate 47. It is carried down by the claw 28. When the seedlings for planting are carried down to the field, they are removed from the planting claws 28 by the seedling extruding member 56 (see FIG. 3) and planted in the mud portion of the field.

When the planting of the seedlings for planting is completed in the field, the planting claws 28 are lifted from the field and returned to the upper part of the seedling outlet 33, and the seedlings for planting are taken out and the seedlings for planting are taken out to the field for planting. Planting is repeated.

As shown in FIG. 2, a seedling holding member 65 for suppressing the floating of the seedlings placed on the seedling placing portion 60a is provided on the upper surface side of the seedling placing table 60. The one-row seedling holding portion 65A on the lateral end side of the seedling holding member 65 is configured to be separable from the other seven-row seedling holding member 65B. When folding the 1-row seedling stand 60A on the lateral end side of the seedling stand 60 above the other 7-row seedling stand 60B, the 1-row seedling holder 65A is used as the 1-row seedling stand. It can be stored together with the unit 60A.

Of the seedling holding members 65, the 7-row seedling holding member 65B includes the end-side support members 66 provided on the upper and lower sides at both lateral ends of the 7-row seedling mounting base 60B, and the 7-row seedling mounting base. The middle support member 67 provided on the upper and lower side portions between the three-row portion and the four-row portion of the 60B, the lower support member 68 provided on the lower end side of the three-row portion, and the four-row portion. It is supported by a lower support member 69 provided on the lower end side of the portion.

[Another Embodiment]
(1) In the above-described embodiment, the example in which the resin seedling extraction guide 40 is adopted is shown, but the metal seedling extraction guide may be adopted.

(2) In the above-described embodiment, the sliding guide rail 30 is made of an aluminum alloy material, but it may be made of any material such as an iron material or a stainless steel material.

(3) In the above-described embodiment, the seedling planting device 13 is configured to be capable of planting 8 rows, but it may be configured to be capable of planting 7 or less rows or 9 or more rows. ..

(4) In the above-described embodiment, an example in which the reinforcing plate 30p is provided is shown, but it may be carried out without the reinforcing plate 30p.

The present invention can be applied to a seedling planting device installed in a walking rice transplanter as well as a seedling planting device installed in a passenger-type rice transplanter.

25 Seedling planting mechanism 30 Sliding guide rail 30p Reinforcing plate 31 Seedling receiving part 32 Stopper part 33 Seedling outlet 34 Horizontal mouth 35 Vertical mouth 36 Exit edge 36a Horizontal mouth edge 36b Horizontal mouth edge 40 Seedling extraction guide 41 Connection part 41a Horizontal connection flange 41b Vertical connection flange 45 Take-out guide plate part 50 Take-out guide part 60 Seedling stand H Plate thickness W Take-out guide part width W1 Front-back guide part width W2 Horizontal guide part width W3 Top Downward guide width

Claims (2)

A seedling stand that can be reciprocated in the width direction of the aircraft,
The end of the seedling stand on the lower side in the vertical feed direction of the seedlings is slidably supported, and the end of the seedling take-out outlet and the end on both sides of the seedling take-out outlet on the lower side in the vertical feed direction of the seedlings. A sliding guide rail with a seedling receiving part that can be slidably received and supported from below,
A seedling planting mechanism having a planting claw, the planting claw passing through the seedling outlet, taking out the seedling from the seedling stand, and descending and transporting the taken out seedling to the field for planting.
A seedling removal guide, which is supported by the sliding guide rail and guides the seedling removal by the planting claw, is provided.
The seedling extraction guide is
A connecting portion connected to the sliding guide rail and
A take-out guide plate extending downward from both sides of the seedling take-out outlet, and
It has an outlet guide portion that enters the seedling outlet and is along the outlet edge of the seedling outlet.
The width of the seedling take-out outlet in the take-out guide portion in the inward and outward directions is wider than the plate thickness of the take-out guide plate portion.
The connecting portion has a horizontal connecting flange located on the back surface side of the seedling receiving portion on both lateral sides of the seedling outlet.
On the surface side of the seedling receiving portion, a reinforcing plate that suppresses wear due to friction with the nursery soil portion of the seedling receiving portion is provided.
The outlet guide portion protrudes toward the surface side of the seedling receiving portion with respect to the horizontal connecting flange , and at the end surface projecting toward the surface side of the seedling receiving portion, the outlet guide portion is different from the seedling receiving portion side of the reinforcing plate. A seedling planting device that is flush with the opposite surface. The sliding guide rail has a stopper portion that stands up from the seedling receiving portion and receives the end surface on the lower side in the vertical feeding direction of the seedlings.
The seedling outlet has a horizontal mouth portion formed in the seedling receiving portion and a vertical mouth portion formed in the stopper portion.
The outlet guide portion is along the horizontal mouth edge portion corresponding to the horizontal mouth portion of the outlet edge and the vertical mouth edge portion corresponding to the vertical mouth portion of the outlet edge. ,
The connecting portion has a vertical connecting flange located on the back surface side of the stopper portion on both lateral sides of the seedling outlet.
A reinforcing plate is provided on the surface side of the stopper portion to prevent the stopper portion from being worn by friction with the nursery soil portion.
The outlet guide portion protrudes toward the surface side of the stopper portion with respect to the vertical connecting flange , and has an end surface projecting toward the surface side of the stopper portion, which is opposite to the stopper portion side of the reinforcing plate. The seedling planting device according to claim 1, which is flush with each other.

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