JP2020000093A - Rice transplanter - Google Patents

Abstract

To support inexpensively a mud guard cover, in a rice transplanter having, on a seedling planting device, the mud guard cover provided on the back side of a seedling stand.SOLUTION: A seedling planting device 20 includes a lateral frame 29 provided extendedly in a width direction of the seedling planting device 20 on the back side of a seedling stand 24, for supporting the seedling stand 24, and an electronic controller case 36 supported by the lateral frame 29. A mud guard cover 34 is provided on a lower spot than the lateral frame 29. The mud guard cover 34 is supported by the electronic controller case 36.SELECTED DRAWING: Figure 2

Description

  The present invention includes a traveling machine body and a seedling planting device provided behind the traveling machine body, and the seedling planting device is provided with a seedling planting mechanism and a seedling planting mechanism provided in front of the seedling planting mechanism. And a seedling mounting table for supplying seedlings to the seedling planting mechanism.

  Among the rice transplanters described above, for example, as shown in Patent Document 1, a seedling planting device includes a mudguard cover provided on the back side of a seedling mounting table.

JP 2013-70627 A

  In the rice transplanter described above, generally, as shown in Patent Document 1, the seedling planting device is provided on the back side of the seedling platform so as to extend in the width direction of the seedling planting device, and supports the seedling platform. A horizontal frame is provided. Therefore, when a support member that extends from the horizontal frame toward the mudguard cover and supports the mudguard cover is provided, and when the mudguard cover is supported by this support member, a dedicated support member for supporting the mudguard cover is required, which increases the cost. .

  The present invention provides a rice transplanter that can support a mudguard cover at low cost.

  A rice transplanter according to the present invention includes a traveling machine body and a seedling planting device provided behind the traveling machine body, wherein the seedling planting device has a seedling planting mechanism and a seedling planting mechanism. A seedling table provided on the front side for supplying seedlings to the seedling planting mechanism; and a seedling table provided on the back side of the seedling table so as to extend in the width direction of the seedling planting device, supporting the seedling table. A horizontal frame, an electronic controller case supported by the horizontal frame, and a mudguard cover provided at a position lower than the horizontal frame on the back side of the seedling mounting table, and the mudguard cover is It is supported by the electronic controller case.

  According to this configuration, since the electronic controller case is used as a support member of the mudguard cover, a special support member for the mudguard cover is not required, and the mudguard cover can be supported at low cost.

  In the present invention, the seedling planting device is provided with a column that stands upright so as to pass between the seedling mounting table and the mudguard cover and supports the horizontal frame, and the mudguard cover includes the column. It is preferable to be supported by.

  According to this configuration, the mudguard cover is supported not only by the electronic controller case but also by the support, so that the mudguard cover can be firmly supported.

  In the present invention, it is preferable that the mudguard cover is supported by the support via a bracket provided on the support.

  According to this configuration, even if the mudguard cover is strongly tightened and connected to the bracket, the tightening force does not reach the column, so that the mudguard cover can be firmly supported without causing trouble such as deformation of the column.

  In the present invention, the mudguard cover is made of resin, and includes a cover through-hole of the mudguard cover, and a screw member that is inserted into the bracket through-hole of the bracket to fasten the mudguard cover to the bracket. It is preferable that the bracket is formed with a projection that enters the cover through hole and sets a tightening limit of the screw member.

  According to this configuration, the protrusion prevents the mudguard cover from being excessively fastened to the bracket, so that the tightening deformation of the mudguard cover can be avoided.

  In the present invention, it is preferable that the protrusion is formed by burring the bracket.

  According to this configuration, the projections can be formed at once by the step of drilling the bracket, so that the tightening deformation of the mudguard cover can be avoided at low cost.

It is a left view which shows the whole rice transplanter. It is a front view which shows the part in which the mudguard cover of a seedling planting apparatus is provided. It is a front view which shows an electronic controller case and a support | pillar. It is a perspective view which shows a mudguard cover, an electronic controller case, and a support | pillar. It is sectional drawing which shows the support structure of a mudguard cover. It is a side view which shows the support structure of a grounding float. FIG. 7 is a sectional view taken along arrow VII-VII in FIG. 6. It is a top view of a mounting bracket.

Hereinafter, an embodiment which is an example of the present invention will be described with reference to the drawings.
In the following description, regarding the traveling machine of a rice transplanter, the direction of arrow F shown in FIG. 1 is “forward of the traveling machine”, the direction of arrow B is “rear of the traveling machine”, and the direction of arrow U is “upward of the traveling machine”. , The direction of arrow D is “downward of the traveling aircraft”, the direction of the front side of the paper is “left of the traveling aircraft”, and the direction of the back of the paper is “rightward of the traveling aircraft”.

[Overall configuration of rice transplanter]
As shown in FIG. 1, the rice transplanter can be driven on a body frame 1, a front part of the body frame 1, and can be driven on a pair of left and right front wheels 2, which can be steered, and a rear part of the body frame 1. And a traveling body having a pair of left and right rear wheels 3 mounted on the vehicle. A driving portion 5 having an engine 4 is formed at a front portion of the traveling body. The traveling body is formed with a riding type driving unit 8 having a driver seat 6 and a steering handle 7 for steering the front wheels 2. A seedling planting device 20 is provided behind the traveling body. The seedling planting apparatus 20 and the body frame 1 are connected via the link mechanism 9. The seedling planting apparatus 20 is moved up and down over a lowering work state and an ascending and non-working state when the link mechanism 9 is vertically swung with respect to the traveling machine body by the expansion and contraction operation of the elevating cylinder 10. A fertilizer application device 11 is provided at the rear of the traveling machine body. The fertilizer 11 can supply fertilizer to a field location near each of a plurality of seedlings planted by the seedling planting apparatus 20.

[Configuration of seedling planting device]
As shown in FIGS. 1 and 2, the seedling planting device 20 extends rearward from four portions of the frame material 21 extending in the width direction of the seedling planting device 20 and four portions of the frame material 21 in the width direction of the seedling planting device. A planting machine body 20A having a planting drive case 22 is provided. As shown in FIG. 6, the frame member 21 is formed by a hollow member having a rectangular vertical section. A seedling planting mechanism 23 is supported on both lateral portions at the rear of each planting drive case 22. A total of eight seedling planting mechanisms 23 are supported by the planting machine 20A. One seedling mounting table 24 is provided in front of the seedling planting mechanism 23. At the lower part of the planting machine 20A, five grounding floats 25 arranged in the width direction of the seedling planting device 20 are supported. A pair of left and right leveling rotors 26 is provided at the front of the planting machine body 20A so as to be rotatable. As shown in FIG. 2, a feed case 27 is provided at the front of the planting machine body 20A. The power of the engine 4 is input to the feed case 27.

  As shown in FIG. 1, each of the eight seedling planting mechanisms 23 includes a rotating rotor 23a rotatably supported by the planting drive case 22, and planting rotatably supported by both ends of the rotating rotor 23a. Arm 23b. Each planting arm 23b supports a planting claw 23c.

  The seedling mounting table 24 is provided with eight seedling mounting portions 24a (see FIG. 2) formed so as to correspond to each of the eight seedling mounting mechanisms 23 and arranged in the width direction of the seedling mounting device 20. Have been.

  In each of the eight seedling planting mechanisms 23, the rotating rotor 23a is driven by the driving force input from the feed case 27 to the planting drive case 22, and the seedling planting motion is performed by driving the rotating rotor 23a. That is, the planting claws 23c of the pair of planting arms 23b are alternately rotated up and down between the seedling outlet formed by the guide rail 28 (see FIG. 3) at the lower end of the seedling mounting table 24 and the rice field. Then, the planting claws 23c of each of the pair of planting arms 23b take out planted seedlings from the seedlings in the seedling placement portion 24a at the seedling taking-out port, transport the taken planted seeds downward, and plant them in the field scene. The seedling planting by each seedling planting mechanism 23 is performed at a place where the leveling by the leveling rotor 26 has been performed.

  A lower end portion of the seedling mounting table 24 is slidably supported by a guide rail 28. The guide rail 28 is supported over the plurality of planting drive cases 22. As shown in FIGS. 2 and 3, a seedling stand frame 24 b extending in the width direction of the seedling stand 24 is provided at an upper end portion on the back side of the seedling stand 24. The seedling mounting frame 24b is slidably supported by a horizontal frame 29 that extends in the width direction of the seedling planting device 20. As shown in FIG. 3, the horizontal frame 29 is supported by uprights 30 erected at three places in the lateral direction of the seedling planting device of the frame member 21. The seedling mounting table 24 is slidably supported by the planting machine 20A via the guide rail 28, the horizontal frame 29, and the support 30 so that the seedling mounting machine 24A can reciprocate in the seedling planting device lateral width direction with respect to the planting machine 20A. I have.

  The seedling mounting table 24 is interlocked with the seedling movement of the seedling mounting mechanism 23 by a seedling lateral feeding mechanism 31 (see FIG. 3) provided between the seedling mounting table 24 and the feed case 27, and the width of the seedling planting apparatus is changed. The seedlings placed on each seedling placing portion 24a are reciprocated in the lateral direction with respect to the seedling placement mechanism 23. As a result, each of the eight seedling planting mechanisms 23 sequentially takes out seedlings from one end in the lateral direction of the seedling placed on the seedling placing portion 24a toward the other end.

  As shown in FIG. 3, a seedling vertical feed belt 32 is provided at each of the eight seedling placing portions 24a. When the seedling mounting table 24 is transported horizontally and reaches the left and right stroke ends, each seedling vertical feeding belt is provided by a seedling vertical feeding mechanism 33 (see FIG. 3) provided between the seedling mounting table 24 and the feed case 27. The seedlings 32 are driven, and the seedlings placed on each of the eight seedling placing portions 24 a are vertically fed by the seedling vertical feed belt 32 toward the seedling planting mechanism 23. This vertical seedling feed is performed by an amount corresponding to the amount of seedlings collected by the seedling planting mechanism 23 in the vertical direction of the seedlings.

[About mudguard cover]
As shown in FIG. 2, a left mudguard cover 34 is provided on the back side of the seedling mounting table 24 at a position on the left side of the link mechanism 9. A right mudguard cover 35 is provided on the back side of the seedling mounting table 24 at a location on the right side of the link mechanism 9. The left mudguard cover 34 and the right mudguard cover 35 are provided at a position lower than the horizontal frame 29. The left mudguard cover 34 is provided at a position behind the left rear wheel 3 and at a position above the rear side of the left leveling rotor 26. The right mudguard cover 35 is provided at a position behind the right rear wheel 3 and at a position above the rear of the right leveling rotor 26. The mudguards 34 and 35 prevent the mud and mud splashed by the rear wheel 3 and the leveling rotor 26 from sticking to the seedling vertical feed belt 32 and the like. In the present embodiment, the left mudguard cover 34 and the right mudguard cover 35 are made of a resin material. The mudguard covers 34 and 35 are not limited to resin covers, but may be metal covers or wooden covers.

  As shown in FIG. 2, the left mudguard cover 34 is supported by an electronic controller case 36 supported by the horizontal frame 29 and a support 30.

  Specifically, as shown in FIGS. 2 and 4, the electronic controller case 36 extends downward from the horizontal frame 29, and the lower part of the electronic controller case 36 supported by the horizontal frame 29 is a mudguard. It is located behind the cover 34. As shown in FIGS. 3 and 4, the electronic controller case 36 includes a cover support portion 36 a formed below the electronic controller case 36. As shown in FIG. 2, the mudguard cover 34 is fastened and connected to the cover support portion 36a by a screw member 38.

  As shown in FIG. 2, the left end support 30 of the three supports 30 passes between the left mudguard cover 34 and the seedling mounting table 24. As shown in FIGS. 3 and 4, the left end support 30 includes a bracket 39 extending from the support 30 inward and laterally to the back side of the mudguard cover 34. As shown in FIG. 2, the mudguard cover 34 is fastened and connected to the bracket 39 by a screw member 40.

  The structure for connecting the mudguard cover 34 to the bracket 39 is configured as shown in FIG. That is, the screw rod portion of the screw member 40 is inserted into the cover through hole 34 a of the mudguard cover 34 and the bracket through hole 39 a of the bracket 39 and is engaged with the screw portion 39 b on the back side of the bracket 39.

  As shown in FIG. 5, the bracket 39 has a protrusion 39c formed around the bracket through hole 39a and entering the cover through hole 34a. As the screw member 40 is tightened, the protrusion 39c is sandwiched between the screw portion 39b of the bracket 39 and the head 40a of the screw member 40, and the tightening limit of the screw member 40 is set by the protrusion 39c. The protrusion 39c prevents the mudguard cover 34 from being deformed due to excessive tightening of the member 40. In the present embodiment, the protrusion 39c is formed by burring the bracket 39. As the protrusion 39c, a member other than the one formed by burring can be used. For example, an annular member formed separately from the bracket 39 and attached to the bracket 39 can be employed.

  As shown in FIG. 2, the right mudguard cover 35 includes, on both lateral sides of the mudguard cover 35, a right-end support 30 passing between the mudguard cover 35 and the seedling mounting table 24, and a right-end support 30. Are supported by the support 30 adjacent to the support. The support structure in which the mudguard cover 35 is supported by the right-end column 30 and the support structure in which the mudguard cover 35 is supported by the column 30 adjacent to the right-end column 30 have a left mudguard cover 34 supported by the left-end column 30. It has the same configuration as the configuration of the supporting structure to be provided.

[About the configuration of the grounding float]
As shown in FIGS. 6 and 7, the grounding float 25 includes a mounting bracket 41 provided on the upper surface side of the grounding float 25, a pair of left and right support arms 43 extending rearward from the float support shaft 44, The free end of the arm 43 and the mounting bracket 41 are supported by a float support shaft 44 via a connecting shaft 42 that connects the mounting bracket 41 so as to be relatively rotatable. The float support shaft 44 is rotatably supported below the planting drive case 22.

  As the float support shaft 44 is rotationally adjusted, the support arm 43 swings up and down about the axis of the float support shaft 44 as a swing fulcrum, thereby changing the mounting height of the ground float 25 to the planting body 20A. That is, the height of the planting body 20A supported on the ground by the grounding float 25 is changed, and the depth of seedling planting by the seedling planting mechanism 23 is changed.

  As shown in FIGS. 7 and 8, in the mounting bracket 41, a rear portion 41r corresponding to the support arm 43 of the left vertical side portion 41A and a rear portion corresponding to the support arm 43 of the right vertical side portion 41A. The distance between the front part 41f of the left vertical part 41A and the front part 41f of the right vertical part 41A is wider than that of the left vertical part 41A. On each of the left and right sides of the mounting bracket 41, a resin bush 45 is interposed between the vertical side 41A and the connecting shaft 42 and between the support arm 43 and the connecting shaft 42, respectively. The resin bush 45 between the vertical side portion 41A and the connecting shaft 42 and the resin bush 45 between the supporting arm 43 and the connecting shaft 42 are formed such that each flange 45a is formed between the rear portion 41r of the vertical side portion 41A and the supporting arm. 43 and is interposed in a state of being inserted between them.

  A connection mechanism is provided between the link mechanism 9 and the seedling planting apparatus 20 to enable the seedling planting apparatus 20 to be attached to and detached from the link mechanism 9 and to allow the seedling planting apparatus 20 to roll with respect to the link mechanism 9. I have. When the seedling planting apparatus 20 is raised to the non-working state, the seedling planting apparatus 20 is locked to prevent rolling of the seedling planting apparatus 20 with respect to the link mechanism 9, and when the seedling planting apparatus 20 is lowered to the lowering work state, A rod-type rolling lock mechanism which is in an unlocked state allowing rolling of the seedling planting apparatus 20 with respect to the link mechanism 9 is provided. When the seedling planting apparatus 20 is connected to the link mechanism 9, the rolling rod of the rolling lock mechanism is connected to the lower link of the link mechanism 9.

[Another embodiment]
(1) In the above-described embodiment, the example in which the mudguard cover 34 is made of resin is shown. However, the cover is not limited to resin but may be made of metal or wood.

(2) In the above-described embodiment, the example in which the projection 39c is provided on the bracket 39 has been described, but the projection 39c may not be provided.

(3) In the above-described embodiment, the example in which the seedling planting device 20 includes the leveling rotor 26 has been described.

  The present invention can be applied not only to a rice transplanter provided with eight seedling planting mechanisms but also to a rice transplanter provided with seven or less or nine or more seedling planting mechanisms.

Reference Signs List 20 seedling planting device 23 seedling planting mechanism 24 seedling mounting table 29 lateral frame 34 mudguard cover 34a cover through hole 36 electronic controller case 39 bracket 39a bracket through hole 39c protrusion 40 screw member

Claims (5)

A traveling body, and a seedling planting device provided behind the traveling body,
A seedling mounting mechanism; a seedling mounting table provided in front of the seedling mounting mechanism to supply seedlings to the seedling mounting mechanism; and the seedling mounting table on a back side of the seedling mounting table. A horizontal frame that is provided in a state of extending in the horizontal width direction of the planting device and supports the seedling mounting table, an electronic controller case supported by the horizontal frame, and the horizontal frame on the back side of the seedling mounting table. And a mudguard cover provided in a low place,
The rice transplanter, wherein the mudguard cover is supported by the electronic controller case. The seedling planting device is provided with a support that stands upright in a state of passing between the seedling mounting table and the mudguard cover and supports the horizontal frame,
The rice transplanter according to claim 1, wherein the mudguard cover is supported by the column.   The rice transplanter according to claim 2, wherein the mudguard cover is supported by the support via a bracket provided on the support. The mudguard cover is made of resin,
A cover through-hole of the mudguard cover, and a screw member that is inserted through the bracket through-hole of the bracket to fasten and connect the mudguard cover to the bracket;
4. The rice transplanter according to claim 3, wherein the bracket is formed with a protrusion that enters the cover through-hole and sets a tightening limit of the screw member. 5.   The rice transplanter according to claim 4, wherein the protrusion is formed by burring the bracket.

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