JP2008307001A - Travelling type seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a travelling type seedling transplanter in which travel wheels 5 supporting a travel machine frame 2 on both the right and left sides of the travel machine frame are disposed in a state movable upward or downward with respect to the travel machine frame, on whose travel machine frame a seedling planting mechanism 7 for planting seedlings in the surface of a field and a water tank 8 (or a fertilizer tank for fertilization) for watering the planted seedlings are disposed, and which can prevent the center of gravity from becoming higher and the increase in the loads due to the water tank, when the travel machine frame is upward or downward moved with respect to the surface of the field. <P>SOLUTION: The water tank 8 is disposed in a state movable upward or downward with respect to the travel machine frame 2, and the water tank is connected to the travel wheels 5 in a state movable relatively upward or downward with respect to the travel machine frame at the same time of the relative upward or downward movements of the travel wheels with respect to the travel machine frame. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a traveling seedling transplanter configured to plant seedlings such as onions on a field scene, and then perform irrigation or fertilization on the planted seedlings.

Conventionally, this type of traveling seedling transplanter has a pair of left and right traveling wheels that support the traveling body on both the left and right sides of the traveling body as described in, for example, Patent Documents 1 and 2 as the prior art. Is configured to be movable up and down relatively with respect to the traveling machine body, the seedling planting mechanism is provided on the traveling machine body so that seedlings are planted on the farm scene, and the farm scene is being traveled while traveling the traveling machine body. The seedling planting mechanism is used to plant seedlings one by one, and the traveling machine body is configured according to the height of the pods in the field, according to changes in the seedling planting depth, or In accordance with the crossing or the like, it is configured to move up and down with respect to the farm scene by the vertical movement of the traveling wheel relative to the traveling machine body.
Japanese Unexamined Patent Publication No. 9-65722 JP 11-318125 A

  By the way, in the traveling type seedling transplanting machine, a water tank or a fertilizer tank may be mounted on the traveling machine body to irrigate or fertilize the planted seedling. As described in Patent Documents 1 and 2, a water tank for irrigation or a fertilizer tank for fertilization is configured to be supported by a traveling machine that moves up and down with respect to a farm scene.

  According to this configuration, when the traveling machine body is moved up and down with respect to the farm scene, the water tank or the fertilizer tank is also lifted and lowered with respect to the farm scene at the same time, so that the center of gravity of the entire traveling machine body is increased. As the height from the field scene increases, there is a problem that it causes unstable running. In addition, since the height of the water tank or the fertilizer tank from the field scene changes according to the vertical movement of the traveling machine body with respect to the agricultural field, the amount of water or fertilizer sprayed on the planted seedlings is increased or decreased in the traveling machine body. There was also a risk of changes in

  Conventionally, the weight of the water tank or the fertilizer tank is loaded on the lifting and lowering movement of the traveling machine body by supporting the entire weight of the water tank or the fertilizer tank by the traveling machine body. Therefore, there has been a problem in that the rigidity of the traveling machine body is increased, the weight is increased, and the lifting mechanism for raising and lowering the traveling machine body is increased.

  An object of the present invention is to provide a traveling seedling transplanting machine that solves these problems.

In order to achieve this technical problem, claim 1
“While the traveling wheels that support the traveling vehicle body on both the left and right sides of the traveling vehicle body are configured to move up and down relatively with respect to the traveling vehicle body, seedlings are planted in the field scene on the traveling vehicle body. In a seedling transplanting machine provided with a seedling planting mechanism, and further comprising a water tank for irrigation or a fertilizer tank for fertilizer application to seedlings planted by the seedling planting mechanism,
The irrigation water tank or fertilizer fertilizer tank is configured to freely move up and down with respect to the traveling machine body, and the irrigation water tank or fertilizer fertilizer tank is disposed on the traveling wheel body and the traveling wheel body on the traveling wheel body. It was connected so as to move up and down relatively with respect to the traveling aircraft simultaneously with up and down movement relative to the aircraft. "
It is characterized by that.

Claim 2
“In the description of claim 1, the water tank or the fertilizer tank is connected to the traveling machine body through a link body so as to be movable up and down.”
It is characterized by that.

Claim 3
“In the description of claim 1, the water tank or the fertilizer tank is connected to the traveling machine body so as to be movable up and down via a parallel link mechanism.”
It is characterized by that.

  According to the configuration described in claim 1, when the height of the traveling machine body from the farm scene is increased by the downward movement of the traveling wheel body relative to the traveling machine body, the water tank or the fertilizer tank is If the height of the traveling vehicle body from the field scene is lowered by the relative upward movement of the traveling wheel body with respect to the traveling vehicle body, the water tank or fertilizer tank will move to the traveling vehicle body. As a result, the height of the water tank or the fertilizer tank from the field scene can be reduced from changing according to the vertical movement of the traveling machine body with respect to the field scene. In other words, the height of the water tank or the fertilizer tank from the field scene can be maintained almost constant regardless of the vertical movement of the field of the traveling machine relative to the field scene. With the, to become unstable driving conditions, and can reliably reduce the scattering amount of water or fertilizer for planting seedlings changed.

  Moreover, according to the configuration described in claim 1, a part or all of the weight in the water tank or the fertilizer tank can be supported by the traveling wheel body that contacts the field scene. Since it is possible to reduce the weight of the water tank or the fertilizer tank as a load when moving up and down with respect to the field scene, it is possible to reduce the rigidity of the traveling machine, and thus to reduce the weight, and to move the traveling machine up and down. Therefore, it is possible to reduce the size of the lifting mechanism for doing so.

  Next, according to the configuration described in claim 2 or the configuration described in claim 3, when the water tank or the fertilizer tank moves up and down relative to the traveling vehicle body, the traveling tank body is moved in the front-rear direction. Since the moving distance can be regulated to be reduced by the link body or the parallel link mechanism, the balance in the front-rear direction in the traveling machine body can be maintained substantially the same, and the operability can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 shows a seedling transplanter according to a first embodiment.

  The seedling transplanter 1 according to the first embodiment includes a traveling machine body 2 having a steering handle 3 at the rear and a traveling wheel body 5 that supports the traveling machine body 2 with respect to the farm scene 4 on both the left and right sides. It is configured.

  In the case of the present embodiment, the traveling wheel bodies 5 on both the left and right sides are constituted by a front wheel 5a positioned on the front side with respect to the forward traveling direction of the traveling machine body 2 and a rear wheel 5b positioned on the rear side. These front and rear wheels 5a and 5b are connected to the traveling machine body 2 by connecting the pair of front and rear link bodies 6a and 6b pivoted to the traveling machine body 2 and the link bodies 6a and 6b. The front and rear wheels 5a and 5b are mounted between, for example, one of the link bodies 6a and 6b and the traveling machine body 2 via a parallel link mechanism 6 constituted by a body 6c. It is configured to move up and down relatively with respect to the traveling machine body 2 by an elevating mechanism (not shown) such as a hydraulic cylinder provided in the vehicle.

  The traveling wheel body 5 may be configured as a traveling crawler and attached to the traveling machine body 2 so as to be movable up and down via the parallel link mechanism 6 and the like.

  On the other hand, the traveling machine body 2 has a seedling planted at the rear thereof so as to plant seedlings on the cocoon 4a in the farm scene 4 by reciprocating up and down with the cocoon 4a in the farm scene 4. The planting mechanism 7 is provided with an engine (not shown) for driving one or both of the front and rear wheels 5a, 5b of the both traveling wheels 5 and the seedling planting mechanism 7 at the front part thereof. It has been.

  A water tank for irrigating the seedlings planted by the seedling planting mechanism 7 in the basket 4a in the farm scene 4 is provided in a part of the traveling machine body 2 just above the traveling wheel body 5. 8 (or a fertilizer tank for fertilizing the planted seedlings) is provided.

  This water tank 8 (or a fertilizer tank) is moved up and down freely with respect to the traveling machine body 2 by connecting the front end of the link body 9 whose base end is pivotally attached to the traveling machine body 2. Further, at the rear end of the water tank 8, a link-like lever that integrally extends upward from the base end of the rear link body 6b among the link bodies 6a and 6b in the parallel link mechanism 6 for the traveling wheel body 5 is provided. The water tank 8 is configured to move up and down relative to the traveling machine body 2 simultaneously with the up and down movement relative to the traveling machine body 2 in the traveling wheel body 5 by connecting the tips of 6b '. Has been.

  In this configuration, the height of the traveling machine body 2 from the farm scene 4 is indicated by a two-dot chain line from the state shown by the solid line in FIG. When the height of the water tank 8 is increased, the water tank 8 moves downward relative to the traveling machine body 2, and the height of the traveling machine body 2 from the farm scene 4 is set to the traveling machine body 2 of both traveling wheel bodies 5. When the water tank 8 is lowered relative to the traveling machine body 2 by lowering as shown by the solid line from the two-dot chain line in FIG.

  Thereby, it can be made small that the height from the farm scene 4 in the water tank 8 changes according to the up-and-down movement with respect to the farm scene 4 in the traveling machine body 2, in other words, with respect to the farm scene 4 in the traveling machine body 2. Regardless of the vertical movement, the height from the farm scene 4 in the water tank 8 can be kept substantially constant.

  Further, the distance L in which the water tank 8 moves in the front-rear direction in accordance with the vertical movement of the traveling machine body 2 with respect to the farm scene 4 can be restricted to a small value by the rotation of the link body 9.

  In the first embodiment described above, the water tank 8 moves rearward as the traveling machine body 2 moves up with respect to the farm scene 4 and approaches the rear wheel 5b. Therefore, when the traveling machine body 2 is raised, there is an advantage that the holding force required to keep the traveling machine body 2 in a predetermined front-rear posture by the steering handle 3 can be reduced.

  Next, FIG. 2 shows a seedling transplanter according to the second embodiment.

  The seedling transplanter 11 according to the second embodiment includes a traveling machine body 12 having a steering handle 13 at the rear and a traveling wheel body 15 that supports the traveling machine body 12 on the left and right sides of the farm scene 44. It is configured.

  In the case of the present embodiment, the traveling wheel bodies 15 on both the left and right sides are constituted by a front wheel 15a positioned on the front side with respect to the forward traveling direction of the traveling machine body 12, and a rear wheel 15b positioned on the rear side. The front and rear wheels 15a and 15b are connected to the traveling machine body 12 by connecting a pair of front and rear link bodies 16a and 16b pivotally attached to the traveling machine body 12 and the link bodies 16a and 16b. The front and rear wheels 15a and 15b are mounted, for example, between one of the link bodies 16a and 16b and the traveling machine body 12 via a parallel link mechanism 16 constituted by a body 16c. It is configured to move up and down relatively with respect to the traveling machine body 12 by an elevating mechanism (not shown) such as a hydraulic cylinder provided in the vehicle.

  On the other hand, the traveling machine body 12 is configured such that a seedling is planted on the cocoon 14a in the farm scene 14 by reciprocating vertically between the gantry 14a in the farm scene 14 at the rear part thereof. The planting mechanism 17 is provided with an engine (not shown) for driving one or both of the front and rear wheels 15a and 15b of the traveling wheel bodies 15 and the seedling planting mechanism 17 at the front part thereof. It has been.

  A water tank for irrigating the seedlings planted by the seedling planting mechanism 17 in the basket 14a in the farm scene 14 is provided in a portion of the traveling machine body 12 substantially above the traveling wheel body 15. 18 (or a fertilizer tank for fertilizing a planted seedling) is disposed.

  The water tank 18 has a pair of front and rear link bodies 19a and 19b pivotally attached to the traveling machine body 12 with respect to the traveling machine body 12, and a link body 19c that connects the link bodies 19a and 19b to each other. The parallel link mechanism 19 for the water tank 18 and the parallel link mechanism 16 for the traveling wheel 15 are connected to each other via a connecting rod 20. Thus, the water tank 18 is configured to move up and down relatively with respect to the traveling machine body 12 simultaneously with the vertical movement of the traveling wheel body 15 relative to the traveling machine body 12.

  In this configuration, the height of the traveling machine body 12 from the farm scene 14 is indicated by a two-dot chain line from the state shown by the solid line in FIG. When the height is increased, the water tank 18 moves downward relative to the traveling machine body 12, and the height of the traveling machine body 12 from the farm scene 14 is set to the traveling machine body 12 of both traveling wheel bodies 15. When the water tank 18 is lowered relative to the traveling machine body 12 by lowering as shown by the solid line from the two-dot chain line in FIG.

  Thereby, it can be made small that the height from the farm scene 14 in the water tank 18 changes according to the up-and-down movement with respect to the farm scene 14 in the traveling machine body 12, in other words, with respect to the farm scene 14 in the traveling machine body 12. Regardless of the vertical movement, the height of the water tank 18 from the farm scene 14 can be kept substantially constant.

  Further, the distance L ′ that the water tank 18 moves in the front-rear direction in accordance with the up-and-down movement of the traveling machine body 12 with respect to the farm scene 14 can be restricted to a small value by the rotation of the parallel link mechanism 16. .

It is a side view which shows the seedling transplanter by 1st Embodiment in this invention. It is a side view which shows the seedling transplanting machine by 2nd Embodiment in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Seedling transplanter 2,12 Traveling machine body 4,14 Farm scene 5,15 Traveling wheel body 6 Parallel link mechanism for raising / lowering traveling wheel body 7,17 Seedling planting mechanism 8,18 Water tank (or fertilizer tank)
9 Link body 19 Parallel link mechanism for water tank 20 Connection rod

Claims (3)

A traveling wheel body that supports the traveling machine body on both the left and right sides of the traveling machine body is configured to move up and down relatively with respect to the traveling machine body, while a seedling is planted on the traveling machine body in a field scene. In a seedling transplanting machine provided with a planting mechanism, and further comprising a water tank for irrigation or a fertilizer tank for fertilization with respect to the seedling planted by the seedling planting mechanism,
The irrigation water tank or fertilizer fertilizer tank is configured to freely move up and down with respect to the traveling machine body, and the irrigation water tank or fertilizer fertilizer tank is disposed on the traveling wheel body and the traveling wheel body on the traveling wheel body. A traveling type seedling transplanting machine, wherein the traveling type seedling transplanting machine is connected so as to move up and down relatively relative to the traveling body simultaneously with up and down movement relative to the body.   The traveling seedling transplanting machine according to claim 1, wherein the water tank or the fertilizer tank is connected to the traveling machine body through a link body so as to be movable up and down.   The traveling seedling transplanting machine according to claim 1, wherein the water tank or the fertilizer tank is connected to the traveling machine body so as to be movable up and down through a parallel link mechanism.

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