JP2022132891A - transplanter - Google Patents

Abstract

To facilitate the return work of empty seedling boxes.SOLUTION: In a sulky rice transplanter 1 comprising preliminary seedling supply devices 7 for supplying preliminary seedlings accommodated in seedling boxes B to a rear part of a traveling machine body 4 from a front part, an empty seedling box placing table 50, which is aligned in parallel with and outside the machine body, is arranged at a rear part of each preliminary seedling supply device 7, and the empty seedling box placing table 50 is configured to allow a plurality of the empty seedling boxes B stacked on one another to be placed. The empty seedling boxes B in a stacked state are accumulated on the empty seedling placing table 50, and the plurality of empty seedling boxes B are returned in a lump in the stacked state, so as to facilitate the return work of the empty seedling boxes B.SELECTED DRAWING: Figure 2

Description

The present invention relates to a transplanter such as a riding rice transplanter.

BACKGROUND ART Transplanters such as riding rice transplanters that plant seedlings while traveling in a field by connecting a planting machine to the rear part of a traveling machine body are widely known (see, for example, Patent Document 1). In the seedling planting work using such a transplanter, when the number of seedlings placed on the seedling mounting table decreases during the planting work, the operator sets the traveling machine body perpendicular to the ridge and moves the ridge. I received spare seedlings from an assistant who was standing nearby and supplied them to the seedling loading table.

In recent years, in order to reduce the work of supplying spare seedlings, the number of transplanters equipped with a spare seedling supply device on the outer side of the traveling body is increasing. The preliminary seedling supply device is composed of a roller conveyor capable of conveying the preliminary seedlings from the front to the rear of the traveling machine body, and the operator can receive the preliminary seedlings conveyed by the preliminary seedling feeding device at the rear part of the traveling machine body. The spare seedlings can be efficiently transferred to the seedling loading table.

JP 2019-176812 A

By the way, since the spare seedlings are supplied in a seedling box, after the spare seedlings are transferred to the seedling loading table, the empty seedling box (hereinafter referred to as an empty seedling box) is placed on the ridge. There will be work to return to the assistant who is in the room. Conventional transplanters have room for improvement in workability when returning empty seedling boxes.

SUMMARY OF THE INVENTION The present invention was created with the aim of solving these problems in view of the actual situation as described above. A transplanter equipped with a preliminary seedling feeding device for supplying seedlings to a seedling machine, wherein an empty seedling box mounting base is arranged in parallel to the outside of the machine body at the rear of the preliminary seedling feeding device, and the empty seedling box mounting base is provided with a plurality of It is characterized in that the empty seedling boxes can be superimposed and placed.
According to a second aspect of the invention, there is provided the transplanter according to the first aspect, wherein the preliminary seedling supply device includes a pair of left and right rail portions parallel to each other along the front-rear direction, and the pair of left and right rail portions. a plurality of supply rollers that are rotatably supported between the sections and are arranged in parallel in the front-rear direction; or at a height higher than the upper end of the rail portion.
Further, the invention of claim 3 is the transplanter according to claim 1 or 2, wherein the empty seedling box mounting base is rotatable to the rear outside of the preliminary seedling feeding device via a pivot point. The position of the seedling box can be switched between an empty seedling box placement posture in which the container is deployed outwardly around the pivot point and a storage posture in which the seedling box is rotated downward around the pivot point. It is characterized by
Further, the invention of claim 4 is the transplanter according to claim 1 or 2, wherein the empty seedling box mounting base is rotatable to the outside of the rear side of the preliminary seedling feeding device via a pivot point. An empty seedling box mounting posture that is expanded outward about the rotation fulcrum, and a storage that is folded and rotated to the lower surface side of the preliminary seedling feeding device about the rotation fulcrum. It is characterized in that the posture can be switched between two postures.
Further, the invention of claim 5 is the transplanter according to any one of claims 1 to 4, comprising: a support frame for supporting the preliminary seedling supply device; and the support frame and the preliminary seedling supply device. and a tilt switching mechanism that can switch the posture of the preliminary seedling supply device between a rear transport posture in which the rear side is lowered and a forward transport posture in which the front side is lowered. do.

According to the invention of claim 1, at the rear of the preliminary seedling feeding device, the empty seedling box mounting bases are arranged in parallel to the outside of the machine body, and the empty seedling box mounting bases are stacked with a plurality of empty seedling boxes stacked thereon. Empty seedling boxes can be piled up on the empty seedling box placing table, and multiple empty seedling boxes can be returned together in a stacked state. become easier. In addition, since the empty seedling box mounting bases are arranged in parallel outside the rear part of the spare seedling feeding device, the empty seedling boxes can be placed without difficulty in the process of supplying the seedlings to the seedling mounting base. In addition, it is possible to minimize the amount of movement of the worker from supplying seedlings to returning the empty seedling box.
Further, according to the second aspect of the invention, the mounting surface of the empty seedling box mounting base on which the empty seedling boxes are mounted is at the same height as the upper end of the rail portion of the preliminary seedling feeding device, or above the upper end of the rail portion. The empty seedling boxes can be easily transferred from the empty seedling box mounting table to the spare seedling feeding device when returning the empty seedling boxes to the ridge side using the spare seedling feeding device. become.
Further, according to the third aspect of the invention, the empty seedling box mounting base is rotatably provided on the outer side of the rear portion of the preliminary seedling feeding device via a pivot point, and is arranged outwardly of the machine body about the pivot point. Since the position can be switched between the unfolded empty seedling box mounting position and the downward rotating retracted position around the rotation fulcrum, the empty seedling box mounting stand can be used when transporting the transplanter or storing it in a warehouse. The transplanter can be made compact by setting it in the retracted posture.
Further, according to the fourth aspect of the invention, the empty seedling box mounting base is rotatably provided on the outer side of the rear portion of the preliminary seedling feeding device via a pivot point, and is arranged outwardly of the machine body about the pivot point. Since the posture can be switched between an unfolded empty seedling box placement posture and a stored posture where the spare seedling feeding device is folded and rotated to the lower surface side around the rotation fulcrum, it is possible to transport the transplanter or store it. The transplanter can be made compact by setting the empty seedling box mounting table to the retracted posture when storing the seedlings.
Further, according to the fifth aspect of the invention, a support frame for supporting the preliminary seedling supply device is provided between the support frame and the preliminary seedling supply device, and the position of the preliminary seedling supply device is lowered toward the rear. To easily return the empty seedling box to the ridge side by switching the preliminary seedling feeding device to the forward conveying posture by further comprising an inclination switching mechanism capable of switching between the conveying posture and the forward conveying posture that becomes lower toward the front side. can be done.

1 is an overall side view of a riding rice transplanter; FIG. 1 is an overall plan view of a riding rice transplanter; FIG. It is a side view which shows the preliminary|backup seedling supply apparatus of a back conveyance attitude|position. It is a side view which shows the preliminary|backup seedling supply apparatus of a folding state. It is a principal part side view which shows the inclination switching mechanism of a preliminary seedling supply apparatus. It is a side view which shows the preliminary|backup seedling supply apparatus of a front conveyance attitude|position. It is a front view of a preliminary seedling supply apparatus which shows the empty seedling box mounting base of an empty seedling box mounting attitude|position. It is a front view of a preliminary seedling supply apparatus which shows the empty seedling box mounting base of a 1st storing attitude|position. It is a front view of a preliminary seedling supply apparatus which shows the empty seedling box mounting base of a 2nd storing attitude|position.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a riding rice transplanter (transplanting machine). The riding rice transplanter 1 includes a traveling body 4 supported by front wheels 2 and rear wheels 3. An engine mounting portion 5 for mounting an engine (not shown) is configured in the front portion. Side frames 6 are erected on both left and right outer sides of the engine mounting portion 5, respectively, and a preliminary seedling supply device 7, which will be described later, is provided above them.

Further, behind the engine mounting section 5, a control section 8 on which a worker rides is configured. The control section 8 includes a steering handle 9, a driver's seat 10, etc. A floor step 11 forming a floor surface of the control section 8 is provided below and forwardly of the driver's seat 10. As shown in FIG.

The floor step 11 is connected to a front step 12 provided on the left and right outer sides of the engine mounting portion 5 and a wide step 13 extending the left and right width of the floor step 11, and an operator can operate the front step 12 and the wide step. By going through 13, it is possible to get into the control unit 8 from either the front or the side of the fuselage.

On the other hand, a planting machine 15 is connected to the rear part of the traveling machine body 4 via a lifting link mechanism 14 so as to be able to move up and down. The planting machine 15 is provided with a seedling platform 16 that slopes forward and backward, a planting mechanism 17 that scrapes seedlings from the seedling platform 16 and plants them in a field, and a float 18 that slides on the field surface. It is configured.

A rear step 19 is provided at the rear of the traveling body 4, and the operator can stand on the rear step 19 to replenish the seedling loading table 16 with spare seedlings. Efficient seedling replenishment becomes possible by using the spare seedling supply device 7.

Next, the preliminary seedling supply device 7 will be described with reference to FIGS. 1 to 6. FIG. As shown in FIGS. 1 and 2, the preliminary seedling supply device 7 is arranged on both the left and right outer sides of the traveling machine body 4 so as to extend in the front-rear direction. , the rear end of which is located on the side of the driver's seat 10 .

The spare seedling supply device 7 of the present embodiment includes a pair of left and right rail portions 20 that are parallel to each other along the front-rear direction, and a plurality of rail portions that are rotatably supported between the pair of left and right rail portions 20 and are parallel to each other in the front-rear direction. It is a roller conveyor having a rectangular shape in a plan view, and is configured to self-propelledly convey the preliminary seedlings housed in the seedling box B along a slope with a high front and a low rear.

The preliminary seedling supply device 7 of this embodiment is divided into a front preliminary seedling supply device 7F, an intermediate preliminary seedling supply device 7M, and a rear preliminary seedling supply device 7R. These preliminary seedling supply devices 7F, 7M and 7R are connected via hinges 22 and 23, respectively, and when not in operation, as shown in FIG. The feeding device 7R and the front preliminary seedling feeding device 7F can be folded and stored.

As shown in FIG. 5 and the like, the support part of the preliminary seedling supply device 7 includes a side view type support frame 24 erected on the side frame 6 which is the outer part of the traveling body 4, a support frame 24 and a spare seedling feeder. and an inclination switching mechanism 26 provided between the seedling supply device 7 and the seedling supply device 7 .

The support frame 24 is integrally provided with a pair of front and rear strut frames 27 and 28 and a connecting frame 29 that integrally connects the front and rear strut frames 27 and 28, and is formed in a side view shape. Frames 27, 28, and 29 are also formed using a cylindrical pipe material.

The inclination switching mechanism 26 changes the attitude of the spare seedling supply device 7 into a rear transport attitude (rear transport attitude of preliminary seedlings) in which the rear side is lowered and a forward transportation attitude (empty seedling box forward transportation attitude) in which the front side is lowered. configured to be switchable. The inclination switching mechanism 26 of this embodiment is provided on the support base 30 that supports the preliminary seedling supply device 7 on the support frame 24 and on the upper end of the rear support frame 28 facing left and right. and a height adjustment portion 32 provided on the front support frame 27 and supporting the front end side of the support base 30 so that the height can be adjusted. The forward/backward inclination of the preliminary seedling supply device 7 is switched according to the height adjustment operation of the height adjustment portion 32 .

The height adjustment portion 32 includes a sliding member 33 supported by the front support frame 27 so as to be vertically slidable, and a connecting portion 34 connecting the upper end portion of the sliding member 33 and the front end side of the support base 30 in a flexible state. , and an engagement pin 35 provided to be insertable and removable in the vertical direction with respect to the front support frame 27 . A plurality of engagement holes (not shown) are formed in the sliding member 33 at predetermined intervals in the vertical direction. The height position of the sliding member 33 is defined by engaging the engagement pin 35 with the hole. As a result, the attitude of the preliminary seedling supply device 7 can be switched between a rear transport attitude in which the rear side is lowered and a forward transportation attitude in which the front side is lowered.

The riding rice transplanter 1 of the present embodiment further includes an engagement pin operation mechanism 36 that enables the insertion and removal of the engagement pin 35 at the rear end of the preliminary seedling supply device 7 . The engagement pin operation mechanism 36 is provided on the front strut frame 27 and engages the engagement pin 35 with an engagement pin support member 37 that is U-shaped in a side view and supports the engagement pin 35 so as to be slidable in the front-rear direction. an urging member 38 for urging in a direction; an operating lever 39 provided on the inner side surface of the rear end portion of the preliminary seedling feeding device 7 so as to be vertically rotatable; , an outer support 41 provided on the rear support frame 28, an outer tube 42 provided between the outer supports 40 and 41, and the outer tube 42, and the rear end is connected to the operation lever 39 via a spring 44. , and an inner wire 43 whose front end is connected to the engagement pin 35 .

When the operator operates the operating lever 39 upward, the engaging pin 35 is pulled through the inner wire 45 and the engaging pin 35 is removed from the engaging hole of the sliding member 33 . While continuing to operate the operating lever 39, the operator raises and lowers the rear end portion of the preliminary seedling supply device 7 to bring the preliminary seedling supply device 7 into a desired inclined posture. After that, when the operation of the operating lever 39 is released and the rear end portion of the preliminary seedling feeding device 7 is slightly moved vertically, the engaging hole of the sliding member 33 and the engaging pin 35 are aligned with each other, and the biasing member is moved. The engaging pin 35 is engaged with the engaging hole by the urging force of 38, and the posture switching operation of the preliminary seedling feeding device 7 is completed.

According to such an engagement pin operating mechanism 36, the engagement pin 35 is operated with an operation lever 39 provided at the rear end portion of the preliminary seedling feeding device 7, and the attitude of the preliminary seedling feeding device 7 is shifted toward the rear side. Since it is possible to switch between a lower rear transport posture and a lower forward transport posture toward the front side, after the preliminary seedling feeding device 7 in the rear transport posture supplies the preliminary seedlings to the rear part of the machine body, the preliminary seedlings are switched to the forward transport posture. The seedling supply device 7 makes it possible to return the empty seedling box B to the front of the machine.

Next, the empty seedling box mounting base 50 will be described with reference to FIGS. 1 to 9. FIG. As shown in FIG. 2, the empty seedling box mounting bases 50 are arranged at the rear of the left and right spare seedling feeding devices 7 so as to be parallel to the outside of the machine body. As shown in FIGS. 5 and 6, the empty seedling box mounting table 50 is capable of placing a plurality of empty seedling boxes B in a vertically overlapping manner. A plurality of empty seedling boxes B can be accumulated in a stacked state and returned together in a stacked state. In addition, the empty seedling box mounting table 50 is arranged in parallel outside the rear part of the spare seedling supply device 7, so that the empty seedling box B can be easily placed in the flow of supplying the spare seedlings to the seedling mounting table 16. can be placed, and the amount of movement of the operator from supplying the seedlings to returning the empty seedling box B can be minimized.

As shown in FIGS. 2 and 7, the empty seedling box mounting base 50 of the present embodiment includes a base member 51 supported by the outer side surface of the preliminary seedling feeding device 7 and a plurality of base members extending outward from the base member 51. and a plurality of second wires 53 orthogonal to the plurality of first wires 52 are integrally provided. Stoppers 52 a and 53 a extending upward are formed at the outer end of the first wire 52 and the front and rear ends of the second wire 53 , and the stoppers 52 a and 53 a are formed on the first wire 52 and the second wire 53 . Dropping of the placed empty seedling box B is restricted by stoppers 52a and 53a. Since the empty seedling box mounting base 50 is formed using the wire rods 52 and 53, the cost and weight of the empty seedling box mounting base 50 can be suppressed.

5 to 7, the mounting surface 50a of the empty seedling box mounting base 50 on which the empty seedling box B is mounted is at the same height as the upper end of the rail portion 20 of the preliminary seedling feeding device 7. Alternatively, it is arranged at a height one step higher than the upper end of the rail portion 20 . In this way, when the empty seedling box B is returned to the ridge side using the spare seedling feeding device 7, the work of transferring the empty seedling box B from the empty seedling box mounting table 50 to the spare seedling feeding device 7 is facilitated. Become.

As shown in FIGS. 7 to 9, the empty seedling box mounting table 50 is rotatably provided on the rear outer side of the preliminary seedling feeding device 7 via a pivot point 54. The empty seedling box placement posture (see FIG. 7) that is deployed outward of the fuselage as a first storage posture (see FIG. 8) that is rotated downward around the pivot point 54 (see FIG. 8), and the pivot point 54 The position can be switched between the second stored position (see FIG. 9) in which the secondary seedling supply device 7 is folded and rotated to the lower surface side of the preliminary seedling supply device 7 as the center.

More specifically, the empty seedling box mounting base 50 is fixed to the rear outer surface of the preliminary seedling supply device 7, and supports a support base 51 via a pivot point 54 so as to be vertically rotatable. Further provided are upper and lower nut portions 56 and 57 provided on 55 and a bolt with a knob 58 that can be selectively screwed onto the nut portions 56 and 57 .

As shown in FIGS. 3 and 7, when a knob-equipped bolt 58 is screwed into an upper nut portion 56 through a hole 51a formed in the support base 51, the empty seedling box mounting base 50 is placed on the empty seedling box. Fixed in posture. Further, as shown in FIG. 8, when the knob-equipped bolt 58 was screwed into the upper nut portion 56 without passing through the hole 51a of the support base 51, the empty seedling box mounting base 50 was not fixed and hung down. It becomes the second retracted posture. Further, as shown in FIG. 9, when a knob-equipped bolt 58 is screwed into a lower nut portion 57 through a hole 51a formed in the support base 51, the empty seedling box mounting base 50 is in the second retracted posture. Fixed.

According to such an empty seedling box mounting base 50, it is possible to switch not only to the empty seedling box mounting posture but also to the first storage posture and the second storage posture. The riding rice transplanter 1 can be made compact by setting the seedling box mounting base 50 in the first storage posture or the second storage posture.

According to the present embodiment configured as described above, the riding rice transplanter 1 is provided with the preliminary seedling supply device 7 for supplying the preliminary seedlings accommodated in the seedling box B from the front to the rear of the traveling body 4, and the preliminary seedlings At the rear of the supply device 7, an empty seedling box mounting base 50 is arranged in parallel to the outside of the machine body. Empty seedling boxes B can be stored in a stacking state on a mounting table 50, and a plurality of empty seedling boxes B can be returned collectively in a stacked state, and as a result, return work of the empty seedling boxes B is facilitated. . In addition, since the empty seedling box mounting table 50 is arranged in parallel outside the rear part of the spare seedling supply device 7, the empty seedling box B can be easily placed in the flow of supplying the spare seedlings to the seedling mounting table 16. can be placed, and the amount of movement of the operator from supplying the seedlings to returning the empty seedling box B can be minimized.

Further, the preliminary seedling supply device 7 includes a pair of left and right rail portions 20 arranged side by side along the front-rear direction, and a plurality of supply rollers rotatably supported between the pair of left and right rail portions 20 and arranged side-by-side in the front-rear direction. 21, and the mounting surface 50a of the empty seedling box mounting table 50 on which the empty seedling box B is mounted is at the same height as the upper end of the rail portion 20 or higher than the upper end of the rail portion 20. Since it is arranged, when the empty seedling box B is returned to the ridge side using the spare seedling supply device 7, the empty seedling box B can be easily transferred from the empty seedling box mounting table 50 onto the spare seedling supply device 7. become.

The empty seedling box mounting table 50 is provided rotatably via a pivot point 54 at the rear outer side of the spare seedling feeding device 7, and the empty seedling box mounting base 50 is arranged to be rotatable around the pivot point 54 to the outside of the machine body. a box placing posture, a first storage posture rotated downward around the pivot point 54, and a second retracted posture rotated around the pivot point 54 to the lower surface side of the preliminary seedling supply device 7 in a folding shape. Since the posture can be switched between the storage posture and the storage posture, the riding rice transplanter 1 can be made compact by setting the empty seedling box mounting base 50 to the first storage posture or the second storage posture when the riding rice transplanter 1 is transported or stored in a warehouse. can be

In addition, the riding rice transplanter 1 is provided between a support frame 24 that supports the preliminary seedling supply device 7 and the support frame 27 and the preliminary seedling supply device 7, and the attitude of the preliminary seedling supply device 7 is lowered toward the rear. Since the inclination switching mechanism 26 which can switch between the backward transport posture and the forward transport posture which becomes lower toward the front side is further provided, the preliminary seedling feeding device 7 is switched to the forward transport posture to easily ridge the empty seedling box B. can be returned to the side.

1 Riding rice transplanter 4 Traveling machine 7 Spare seedling supply device 15 Planting work machine 16 Seedling mounting base 20 Rail part 21 Supply roller 24 Support frame 26 Inclination switching mechanism 50 Empty seedling box mounting base 50a Mounting surface 54 Rotation fulcrum

Claims (5)

A transplanter equipped with a preliminary seedling supply device that supplies preliminary seedlings housed in a seedling box from the front to the rear of a traveling machine body,
At the rear of the preliminary seedling supply device, an empty seedling box mounting table is arranged in parallel to the outside of the machine body,
A transplanter, wherein the empty seedling box mounting table is capable of stacking and mounting a plurality of empty seedling boxes. The preliminary seedling supply device is
a pair of left and right rail portions parallel to each other along the front-rear direction;
a plurality of supply rollers rotatably supported between the pair of left and right rail portions and arranged in parallel in the front-rear direction;
A mounting surface of the empty seedling box mounting base on which the empty seedling boxes are mounted is arranged at the same height as the upper end of the rail portion or at a height higher than the upper end of the rail portion. 2. The transplanter of claim 1. The empty seedling box mounting base is rotatably provided on the rear outer side of the preliminary seedling feeding device via a pivot point, and the empty seedling box mounting table is deployed outwardly of the machine body about the pivot point. 3. The transplanter according to claim 1, wherein the posture can be switched between a posture and a retracted posture rotated downward about the rotation fulcrum. The empty seedling box mounting base is rotatably provided on the rear outer side of the preliminary seedling feeding device via a pivot point, and the empty seedling box mounting table is deployed outwardly of the machine body about the pivot point. 3. A posture according to claim 1 or 2, characterized in that the posture can be switched between a posture and a retracted posture in which the spare seedling supply device is folded and rotated to the lower surface side of the preliminary seedling supply device around the rotation fulcrum. transplant machine. a support frame for supporting the preliminary seedling feeding device;
An inclination switch is provided between the support frame and the preliminary seedling supply device, and can switch the attitude of the preliminary seedling supply device between a rear conveyance attitude in which the rear side is lowered and a forward conveyance attitude in which the front side is lowered. The transplanter according to any one of claims 1 to 4, further comprising a mechanism.

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