JP5782670B2 - Working machine - Google Patents

Description

  The present invention relates to a working machine such as a seedling transplanter provided with a spare seedling stand on a side portion of an airframe having a traveling device.

  In a seedling transplanting machine provided with a seedling planting device at the rear part of the machine body, a seedling transplanting machine provided with a plurality of spare seedling stands on the side part of the machine body is known.

  In the seedling transplanting machine described in the following Patent Document 1, a configuration is disclosed in which a fixed seedling stand fixed to a side portion of the machine body is arranged, and a first preliminary seedling stand whose arrangement position is movable above and in front thereof is arranged. Yes. It is also disclosed that a second preliminary seedling stand can be arranged behind the fixed seedling stand.

JP 2005-176680 A

  In the seedling transplanting machine disclosed in the above-mentioned Patent Document 1, the first preliminary seedling stand is arranged so that the arrangement position is freely movable above and in front of the fixed seedling stand, and is folded upward and behind the fixed seedling stand. A configuration is described in which a second reserve seedling whose position is freely movable is described. By moving the first reserve seedling above the fixed seedling, the seedling can be moved when the operator gets on and off the seedling transplanter. In addition, it is possible to arrange spare seedlings on the first preliminary seedling stand and the second preliminary seedling stand in accordance with the seedling transplanting work conditions.

  When the first and second preliminary seedling stands are arranged before and after the fixed seedling stand, a large seedling placement stand area can be secured. To fold the first and second preliminary seedling stands on the fixed seedling stand, It is the structure which rotates the front end and rear end of a fixed seedling stand as a rotation fulcrum, and can fold a reserve seedling stand easily.

  The subject of this invention is providing the seedling transplanter provided with the seedling stand structure which can ensure a wider seedling mounting stand area | region more easily than the said prior art.

The above-mentioned problem of the present invention is solved by the following means.
The invention according to claim 1 is disposed in the traveling vehicle body (2), the working unit (4) connected to the traveling vehicle body (2) so as to be movable up and down, and the traveling vehicle body (2). The supported first, second and third preliminary seedling stands (38a, 38b, 38c), the front end side surface or the rear end side face of the second preliminary seedling stand (38b), and the first preliminary seedling stand ( The first moving link member (39a) connected to the central side surface of 38a), the rear end side surface or front end side surface of the second preliminary seedling table (38b) and the center of the third preliminary seedling table (38c). A third moving link member (39c) connected to the side surface of the first side, a central side surface of the second preliminary seedling table (38b), a rear side surface of the first preliminary seedling table (38a), and a third preliminary seedling table (38c) respectively connecting the front end side surfaces or the center side surface of the second preliminary seedling table (38b) and the first preliminary seedling table (38a) And a end portion side surface and the third of the second mobile link member connected respectively to the rear end side of the preliminary seedling stage (38c) (39b),
The positions at which the first, second and third spare seedling stands (38a, 38b, 38c) are arranged in three upper and lower stages and the first, second and third spare seedling stands (38a, 38b, 38c) are almost the same. The first, second, and third moving link members (39a, 39b, 39c) are rotatable to positions arranged on the same plane, and the first, second, and third moving link members (39a, 39b) are rotatable. , 39c) is provided only on one side of the first, second and third spare seedling stands (38a, 38b, 38c),
The first auxiliary link (45a) is connected to the front end portion or the rear end portion of the first moving link member (39a) and the second preliminary seedling stand (38b) so as to be rotatable. It arrange | positions with the attitude | position bent with respect to the longitudinal direction of a 1st movement link member (39a), and the 2nd movement link member (39b) and the rear-end part or front-end part of a 1st preliminary seedling stand (38a) are 2nd auxiliary links. (45b) is pivotally connected, and the second moving link member (39b) and the third spare seedling stand (38c) are connected to the front end portion or the rear end portion so as to be rotatable by the third auxiliary link (45c). The second auxiliary link (45b) and the third auxiliary link (45c) are arranged in a posture that is bent with respect to the longitudinal direction of the second moving link member (39b), and the second moving link member (39c) and the second moving link member (39c) 4th auxiliary link at the rear end or front end of the spare seedling stand (38b) Rotatably connected with 45d), the fourth auxiliary link (45d) is disposed in a posture bent with respect to the third longitudinal direction of the moving link member (39c),
A first stopper (47a) is provided on the front side of the first preliminary seedling table (38a), a sixth stopper (47f) is provided on the rear side of the third preliminary seedling table (38c), and the first auxiliary link (45a) is provided. ) For the third stopper (47c), the second auxiliary link (45b) for the second stopper (47b), the third auxiliary link (45c) for the fourth stopper (47d) and the fourth auxiliary link (45d). Is provided with a fifth stopper (47e), and the first preliminary seedling stand (38a), the second preliminary seedling stand (38b), and the third preliminary seedling stand (38c) are arranged in three stages in the vertical direction. When it comes to form, the first, second, third, fourth, fifth and sixth stoppers (47a, 47b, 47c, 47d, 47e, 47f) stand up, respectively, and the first preliminary seedling stand 38a, second The same spare seed bed (38b) and third spare seed bed (38c) The second and fifth stoppers (47b, 47e) are located below the upper plane of the first, second, and third spare seedling stands (38a, 38b, 38c) when arranged side by side on the surface. And a seedling transplanter characterized in that the first and sixth stoppers (47a, 47f) rise .

According to the second aspect of the present invention, the first, second and third moving link members (39a, 39b, 39c) are provided with electric motors, and the first, second and third moving link members (39a, 39c) are provided by the electric motors. 39. The seedling transplanter according to claim 1, wherein 39b and 39c) are rotationally operated.

According to a third aspect of the present invention, the first, second and third spare seedling stands (38a, 38b, 38c) are rotated about the vertical axis of rotation and deployed both inside and outside the fuselage. The second spare seedling stand (38b) is a fixed type that does not move even when the first, second and third moving link members (39a, 39b, 39c) are operated. The preliminary seedling stands (38a, 38c) are movable when the first, second and third moving link members (39a, 39b, 39c) are operated, and the first and third moving link members (39a) 39c) is connected to the front end portion or the rear end portion of the second preliminary seedling stand (38b) by the first and third preliminary seedling stands (38a, 38c) and the second preliminary seedling stand (38b). In front of the first and third spare seedling stands (38a, 38c) When the first and third spare seedling stands (38a, 38c) are arranged side by side with the second spare seedling stand (38b) in three vertical stages, The first and third spare seedling stands (38a, 38c) connected to the end portions of the two spare seedling stands (38b) are arranged on opposite sides of the second spare seedling stand (38b), and the second the first and third preliminary seedling stage and below the preliminary seedling stage (38b) (38a, 38c) according to claim 1 or claim, characterized in that a second mobile link member for moving the (39 b) 2 The seedling transplanting machine according to any one of the above.

According to the first aspect of the present invention, the state in which the seedling trays are placed separately into the individual preliminary seedling placement stands 38a, 38b, 38c arranged in a plurality of upper and lower stages as a whole and the preliminary seedling stands 38a, 38b, 38c are provided. Since the connection can be switched to a state in which a wide seedling tray mounting plane can be obtained, a seedling mounting base with good seeding tray mounting workability can be obtained. In addition, it is possible to connect the spare seedling stands 38a, 38b, and 38c with a simple mechanism by the moving link members 39a, 39b, and 39c, and the seedling replenishment workability is improved.
In addition, seedling supply or seedling to the first, second and third spare seedling stands 38a, 38b and 38c from the side where the first, second and third moving link members 39a, 39b and 39c are not arranged. The take-out operation can be easily performed without the first, second and third moving link members 39a, 39b and 39c getting in the way.
In addition, when the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged side by side on the same plane, the second and fifth stoppers 47b and 47e serve as the first, second, and third preliminary seedling platforms. Since the first and sixth stoppers 47a and 47f are raised from the upper plane of 38a, 38b and 38c, the seedling trays are provided on the first, second and third preliminary seedling platforms 38a, 38b and 38c. The first and sixth stoppers 47a and 47f can be placed without any obstacle on the same plane, and the first, second, and third preliminary seedling platforms 38a, 38b, and 38c do not slide down. is there. When the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged in three upper and lower stages, the first, second, third, fourth, fifth, and sixth stoppers 47a and 47b are arranged. , 47c, 47d, 47e, 47f have an effect that the seedling tray does not slide down from the first, second, and third preliminary seedling platforms 38a, 38b, 38c.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the first, second and third moving link members 39a, 39b, 39c can be operated by the electric motor.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2 , the first, second, and third preliminary seedling stands 38a, 38b, 38c are arranged on the vertical axis of rotation. Rotates around the mind and expands and expands both inside and outside the aircraft. The second preliminary seedling stand 38b can be a fixed type that does not move even when the first, second, and third moving link members 39a, 39b, 39c are operated. Further, the moving link members 39a, 39b, 39c can be configured to be as short as possible, the structure can be simplified and the weight of the machine body can be reduced, and the moving path of the first and third spare seedling stands 38a, 38c can be shortened. The bases 38a, 38b, and 38c can be easily switched to the connected state. Further, the other auxiliary seedling table 38c or 38a can be moved in conjunction with the movement of the first auxiliary seedling table 38a or the third auxiliary seedling table 38c, and the upper and lower three stages of the auxiliary seedling tables 38a, 38b and 38c. And the connection state on the same plane can be easily switched. In addition, the number of moving link members 39a, 39b, and 39c can be reduced, and the structure can be simplified and the body weight can be reduced.

It is a side view of the riding type rice transplanter of the Example of this invention. It is a top view of the riding type rice transplanter of FIG. It is a side view at the time of arrange | positioning the preliminary seedling mounting stand of the riding type rice transplanter of FIG. It is a side view at the time of arrange | positioning the preliminary seedling mounting stand of the riding type rice transplanter of FIG. 1 on the same plane. It is a top view of the preliminary seedling mounting part of FIG. The preliminary seedling load platform of riding rice transplanter in Figure 1 is a front view seen from the fuselage forward of when placed above the bottom three stages. 1 is a side view (FIG. 7 (a)) and a front view (FIG. 7 (b)) viewed from the front of the machine body when arranged on the upper and lower three stages of the spare seedling mounting stage of the riding type rice transplanter of FIG. is there. It is a principal part side view of the seedling planting part of FIG. It is a principal part rear view of the support structure of the seedling stand of FIG. It is a principal part top view of the seedling planting part of FIG. FIG. 11A is a configuration diagram of the two-stage switching clutch mechanism of the rotor of the seedling planting portion of FIG. 1 according to the embodiment (FIG. 11A) and FIG. 11A is an arrow view from the S direction (FIG. 11B). It is. It is a side view of the raising / lowering device vicinity of the seedling planting part of one Example of FIG. FIG. 12 is a partial cross-sectional view of a modification of the rotor transmission device of FIG. 11.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 are a side view and a plan view of a riding type rice transplanter equipped with a fertilizer application device as a granular material feeding device which is a typical example of the seedling transplanter of the present invention. In this riding type rice transplanter 1 with a fertilizer application, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via an elevating link device 3 so that the seedling planting portion 4 can be moved up and down. Is provided. The boarding operator refers to the left and right directions in the forward direction of the seedling transplanter as left and right, respectively, and the forward and backward directions are referred to as forward and backward, respectively.

  The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles projecting outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10 and 10 are respectively attached. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18.

  The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via the belt transmission device 21 and the HST 23. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and also the fertilizer application device 5 by the fertilization transmission mechanism 28. Is transmitted to.

  The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly grid-shaped (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls on the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

  The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted by hydraulic pressure. The upper link 40 pivots up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

  The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings to the seedling outlet 51a of each row one by one. When all the seedlings are supplied to the seedling outlet 51a, the seedling feed belt 51b is used to transfer the seedlings downward by a seedling feeding belt 51b, and the seedling planting is carried out in the field. Attaching device 52,... Includes a pair of left and right drawing markers 75 for drawing the aircraft path in the next stroke to the topsoil surface. In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the seedling planting device 52, Seedlings are planted by ... Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side moves up and down in accordance with the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. The planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4 according to the detection result. .

  The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding portions 61,... And applies the fertilizer to the left and right sides of the floats 55, 56, 56 with the fertilizer hoses 62,. Guides (not shown), guided to the fertilizer guide, ... Grooves (not shown) provided on the front side of the fertilizer guide, ... are dropped into the fertilization structure formed near the side of the seedling planting strip. ing. Air generated by the blower 58 driven by the blower electric motor 53 is blown into the fertilizer hose 62 through the air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hose 62 is forced by the wind pressure. It is designed to be transported.

  The seedling planting unit 4 is provided with a rotor 27 (an example of a combination of the first rotor 27a and the second rotor 27b may be simply referred to as the rotor 27) as an example of a leveling device. In addition, the seedling mount 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame 65 having a full width in the left-right direction and the vertical direction that supports the entire seedling planting unit 4 as a rail.

  In addition, a pair of preliminary seedling platforms 38, 38 on which replenishment seedlings are placed are centered around a rotating shaft 49a (see FIGS. 4 and 5) extending vertically in the front left and right sides of the traveling vehicle body 2. Are provided so as to be pivotable between a position projecting laterally from the body and a position housed inside.

  FIG. 3 shows a side view when the first preliminary seedling stage 38a, the second preliminary seedling stage 38b, and the third preliminary seedling stage 38c on one side of the machine body are arranged in three upper and lower stages. FIG. 4 shows a side view when the stage 38a, the second preliminary seedling stage 38b, and the third preliminary seedling stage 38c are arranged on the same plane, and the first preliminary seedling stage 38a and the second preliminary seedling stage 38b. FIG. 5 shows a plan view when the third preliminary seedling stage 38c is arranged on the same plane, and the first preliminary seedling stage 38a, the second preliminary seedling stage 38b, and the third preliminary seedling stage 38c are arranged in front of the body. FIG. 6 shows a front view as seen from above.

  Each of the preliminary seedling stage 38 is composed of an inclined support member and is arranged in three stages, and includes a first preliminary seedling stage 38a, a second preliminary seedling stage 38b, and a third preliminary seedling stage 38c. The central side surface of the uppermost first preliminary seedling stage 38a and the foremost side surface of the second preliminary seedling stage 38b are rotatable around the rotation shafts 38a1 and 38b1, respectively, at both ends of the first moving link member 39a. The rearmost side surface of the uppermost first preliminary seedling stage 38a and the frontmost side surface of the lowermost preliminary seedling stage 38c are respectively supported at both ends of the second moving link member 39b around the rotation shafts 38a2 and 38c1. And the central side surface of the second preliminary seedling stage 38b is supported by the central part of the second moving link member 39b so as to be rotatable around the rotary shaft 38b2. The rear side surface of the seedling stage 38b and the central side surface of the lowermost third preliminary seedling stage 38c are supported at both ends of the third moving link member 39c so as to be rotatable around the rotary shafts 38b3 and 38c2, respectively. ing.

  The second preliminary seedling stage 38b is fixed to the body, and the first preliminary seedling stage 38a and the third preliminary seedling stage 38c are arranged above and below the second preliminary seedling stage 38b, and as a whole. The first preliminary seedling stage 38a and the third preliminary seedling stage 38c are respectively arranged before and after the state arranged in the upper and lower three stages and the second preliminary seedling stage 38b, and the first moving link member as a whole. 39a, the second moving link member 39b, and the third moving link member 39c can be rearranged on substantially the same plane. That is, since the center part of the second moving link member 39b is supported by the rotation fulcrums provided on both sides of the center part of the second preliminary seedling stage 38b, the second moving link member 39b is rotated. The first and third preliminary seedling platforms 38a and 38c are moved forward and backward of the second preliminary seedling platform 38b, and the first, second and third preliminary seedling platforms 38a, 38b and 38c are on the same plane. A wide seedling tray mounting plane can be obtained by arranging in the above.

  The first moving link member 39a is connected to the front end portion of the second preliminary seedling stage 38b, the second moving link member 39b is connected to the rear end side of the first preliminary seedling stage 38a, The connecting part side on the front end side of the third preliminary seedling stage 38c of the second moving link member 39b and the connecting part side on the rear end part side of the second preliminary seedling stage 38b of the third moving link member 39c are respectively first. Short first, second, and third auxiliary members bent at right angles to the longitudinal direction of the moving link member 39a, the second moving link member 39b, and the third moving link member 39c and provided on the link members 39a, 39b, and 39c. Via links 45a, 45b, 45d, the first, second, and third preliminary seedling platforms 38a, 38b, 38c are rotatably connected. In addition, first, second, and third partition plates 48a, 48b, and 48c for preventing the seedling tray from falling are disposed on the left and right side surfaces of the first, second, and third preliminary seedling platforms 38a, 38b, and 38c. .

Further, when the first, second and third preliminary seedling platforms 38a, 38b and 38c are arranged side by side on the same plane (FIG. 4), the front side of the first preliminary seedling platform 38a located at the foremost part Since the first stopper 47a and the sixth stopper 47f are raised above the respective planes on the rear side of the third preliminary seedling stage 38c located at the rearmost part, the first, second and third preliminary seedling stages are raised. When 38a, 38b, and 38c are arranged side by side on the same plane, the seedling trays placed on the first, second, and third preliminary seedling placing stands 38a, 38b, and 38c do not slide down.

Moreover, the short 1st auxiliary | assistant link 45a in the connection part with the front-end part of the 2nd reserve seedling stand 38b of the 1st movement link member 39a, and the rear-end part of the 1st reserve seedling stand 38a of the 2nd movement link member 39b A short second auxiliary link 45b at the connecting portion between the first auxiliary link 45b and a short third auxiliary link 45c at the connecting portion between the front end portion of the third preliminary seedling stage 38c of the second moving link member 39b, and a third moving link member 39c second preliminary seedling loading table 38 b of the rear end portion at the junction between the short fourth auxiliary link each of the 45d third, second, fourth, fifth stopper 47c, 47b, 47d, 47e are provided It has been.

The third, second, fourth, and fifth stoppers 47c, 47b, 47d, and 47e are integrated with the pair of left, right, first, second, third , and fourth auxiliary links 45a, 45b, 45c, and 45d, respectively. The first, second, third, fourth, fifth, and sixth stoppers 47a are fixed when the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged in three upper and lower stages. , 47b, 47c, 47d, 47e, 47f so rises all as shown in FIG. 3, prevent the stoppers 47a, 47b, 47c, 47d, 47e, the seedling tray slipping it by 47f.

  As shown in FIG. 4, when the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged side by side on the same plane, the second and fifth stoppers 47b and 47e are provided in the first, second, Since the first and sixth stoppers 47a and 47f are raised from the upper plane of the third spare seedling stage 38a, 38b and 38c, the seedling tray is provided with the first, second and third preliminary seedling stages. 38a, 38b, and 38c can be placed on the same plane without any obstacles, and the first and sixth stoppers 47a and 47f do not slide down.

Further, as shown in FIG. 6, the first, second, and third moving link members 39a, 39b, and 39c are arranged inside the support member 49 to the machine body, and therefore, the three-stage reserve seedling stage 38a in the upper and lower stages. , 38b, 38c are rearranged in one step on the same plane, the first, second, third, etc., in which the operator or the like operates in the process of rotating the first, second, third moving link members 39a, 39b, 39c. There is no possibility of being caught in the third moving link members 39a, 39b, 39c and the like.

In addition, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c can be moved by performing an operation of rotating the first, second, and third moving link members 39a, 39b, and 39c with one touch. , It can be rearranged in one step in the same plane as the state of being arranged in the upper and lower three steps.

The change in the number of stages of the first, second, and third preliminary seedling platforms 38a, 38b, and 38c is switched depending on the work (including field conditions) form. For example, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c are arranged on the same plane when a seedling tray or the like is replenished, and are arranged in three upper and lower stages during seedling planting work. When the field conditions are, for example, high salmon and the first, second, and third preliminary seedling platforms 38a, 38b, and 38c cannot be expanded outward or forward of the machine body, a plurality of upper and lower stages are provided. When there is no hindrance to deploy the third preliminary seedling stage 38a, 38b, 38c outward or forward of the machine body, the first, second, and third preliminary seedling stage 38a, 38b, 38c are deployed to make one stage. .
In addition, the switching of the first, second, and third preliminary seedling mounting bases 38a, 38b, and 38c, which are composed of three stages on the upper and lower sides, to the front and back, can be performed while the seedling tray is mounted.

In addition, two first and second preliminary seedling platforms 38a, 38b are used in place of the three first, second, and third preliminary seedling platforms 38a, 38b, and 38c, and are arranged in two vertical stages or on the same plane. Other configurations may be adopted.
When using the spare seedling stage 38a, 38b, 38c and when using the spare seedling stage 38a, 38b, the first, second, and third moving links are used when rearranging on the upper and lower three stages , the upper and lower stages, or on the same plane. The members 39a, 39b, 39c or the first and second moving link members 39a, 39b have a configuration in which the first preliminary seedling stage 38a is arranged in front of the machine body or a configuration in which the first preliminary seedling board table 38a is arranged in the rear of the machine body. Either is fine.

  When the first, second, and third preliminary seedling platforms 38a, 38b, and 38c or the first and second preliminary seedling platforms 38a and 38b are used, they are arranged in three upper and lower stages, two upper and lower stages, or on the same plane. The operation of the first, second, third moving link members 39a, 39b, 39c or the first, second moving link members 39a, 39b may be performed by an electric motor (not shown). At this time, if the operation switch of the electric motor is provided at two places on the assistant side, which is in a different place around the seedling transplanter, the operator side and the operator have good workability.

The first, second, and third preliminary seedling platforms 38a, 38b, and 38c or the first and second preliminary seedling platforms 38a and 38b are arranged around the rotation shaft 49a (FIGS. 4 and 5) of the support member 49. vertically is rotated inboard about the imaginary rotation axis, it is possible to the outer configuration either be spread apart from the vertical direction. Thus, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c or the first and second preliminary seedling platforms 38a and 38b can be brought close to each other.

  Further, as shown in the side view of FIG. 7A and the front view of FIG. 7B, the first, second, and third preliminary seedling platforms 38a, 38b, and 38c, or the first and second preliminary seedling platforms. When the bases 38a and 38b are used, the first, second and third preliminary seedling mounting bases 38a, 38b and 38c or the first and second preliminary seedling mounting bases 38a and 38b are rotated. The movement lock lever 73b can be rotated in the front-rear direction in accordance with the rotation direction of the first, second, third preliminary seedling stage 38a, 38b, 38c or the first, second preliminary seedling stage 38a, 38b. it can.

  The operation of the rotation lock lever 73b facilitates the operation of the rotation lock lever 73b simultaneously with the rotation of the preliminary seedling mounting bases 38a to 38c or the preliminary seedling mounting bases 38a and 38b. At this time, the seedling frame rotation lock lever 73b was provided at the position of the rotation lock pin 73c of the support member 49 of the preliminary seedling mounting bases 38a to 38c or the preliminary seedling mounting bases 38a and 38b. At this time, by setting the seedling frame rotation lock lever 73b in a locked state so as to extend to the front side (the cocoon side), the rotation lock lever 73b can be performed from either the cocoon side or the rice transplanter side. The support member 49 and the spare seedling stage 38b are connected by a reinforcing plate 73e.

The rotation lock plate 73a rotates integrally with the intermediate shaft 38b2 that rotates together with the link member 39b at the center of the moving link 39b. Rotating the lock lever 73b is that attached freely back and forth pivoting the support member 49. The rotation lock pin 73c is attached to the support member 49 so as to freely advance and retract, and is connected to the rotation lock lever 73b via a cable 73d. The rotation lock plate 73a has a hole for receiving the rotation lock pin 73c. The rotation lock pin 73c enters the hole of the rotation lock plate 73a and regulates the rotation of the rotation lock plate 73a in a state where the preliminary seedling platforms 38a, 38b, 38c are arranged in a plurality of stages.

Next, the main part of the rotor support structure is shown in the side view of FIG. 8 and the rear view of FIG. 9, and the rotor 27 (first rotor 27a and second rotor 27b), floats 55 and 56, and seedling planting device are shown in FIG. The principal part top view of 52 parts is shown.
The rotor support structure 6 includes a beam member 66 that is rotatably supported on both side members 65b of the support frame 65 of the seedling stage 51, a support arm 67 fixed to both ends of the beam member 66, and the support arm 67. A rotor support frame 68 that is rotatably attached to the support arm 67 is provided. A drive shaft 70 (first drive shaft 70a, second drive shaft 70b) of the rotor 27 is attached to the lower end of the rotor support frame 68. Further, the lower end portion of the rotor support frame 68 is connected to a connecting member 71 rotatably attached to the transmission case 50.

  As shown in FIG. 10, the second rotor 27 b in front of the center float 55 is disposed in front of the first rotor 27 a in front of the side float 56 due to the arrangement position with the floats 55 and 56. Therefore, power is transmitted from the gear in the gear case 18 of the rear wheel 11 to the first drive shaft 70a that drives the left first rotor 27a via the universal joint 72, and further to the inner end of the first drive shaft 70a. A bevel gear (not shown) that meshes with the bevel gear is provided at an end from a provided bevel gear (not shown), and power is transmitted to a transmission shaft disposed in the left transmission case 73, and a second is transmitted from the transmission shaft. Power is transmitted to the second drive shaft 70b to which the rotor 27b is fixed. Further, power is transmitted to the transmission shaft arranged in the right transmission case 73 via a bevel gear provided at the right end of the second drive shaft 70b, and the right first rotor 27a is fixed from the transmission shaft. Power is transmitted to the first drive shaft 70a.

  As shown in FIG. 10, a pair of transmission cases in which the left and right first rotors 27a and the central second rotor 27b are offset from each other and extend in the front-rear direction between the first and second rotors 27a and 27b. 73 and 73 are arranged, and the transmission cases 73 and 73 are arranged in an inclined manner in the front-and-rear direction in the plan view of the body. It is comprised so that the width | variety of the mutual front side of a pair of transmission socks 73 and 73 may become smaller than the width | variety of a rear side in planar view of a body.

A second rotor 27b is disposed on the front side of the pair of transmission cases 73, 73 on the left and right inner sides of the cases 73, 73, and on the rear part of the pair of transmission cases 73, 73, on the outside of the cases 73, 73. The first rotors 27a and 27a are respectively arranged.
Therefore, the rotor 27 is arranged evenly over the entire width in the left-right direction of the planting position of the rice transplanter 1 and thus the rice transplanter 1, and the leveling width of the field is widened, and the leveling performance can be improved.

Maintenance is facilitated by disposing the rotor transmission case 19 incorporating the rotor transmission B on the front side of the rear wheel 11 as shown in FIG.
Further, if the cover 19 covering the rotor transmission B is further covered to the front side of the gear case 18 of the rear wheel 11, the cover 19 can be easily removed and maintenance up to the gear case 18 can be easily performed during adjustment.
FIG. 11 shows the rotor transmission device B. The rotor transmission device B has a built-in mechanism for shifting the power transmitted from the gear case 18 for driving the rear wheels 11 in two stages and outputting it to the rotor 27. .

In the configuration of the present embodiment, the rotational speed of the rotor 27 (a combination of the first rotor 27a and the second rotor 27b) can be switched between two stages of low speed and high speed. The first rotor 27a in the rotor transmission casing 19 which is connected to the rear wheel gear case 18 to the rotor speed change device B is disclosed a rotational speed of the second rotor 27b made possible instead Ri switching in two stages of slow and fast Has been.
The block diagram of the two-stage switching clutch mechanism of the rotor 27 is shown in a plan developed sectional view (FIG. 11 (a)) and a front view (FIG. 11 (b)) viewed from the arrow S direction in FIG. 11 (a).

In the rotor transmission case 19, the power input shaft 64 from the rear wheel gear case 18, the rotor shaft 69 disposed in parallel with the input shaft 64, and a pair of low speed gears fixed to the input shaft 64 and the rotor shaft 69, respectively. The sprockets 83 and 85, the high-speed sprockets 86 and 87, the low-speed sprockets 83 and 85, the chains 89 and 90 spanned between the high-speed sprockets 86 and 87, and the low-speed sprocket fixed to the rotor shaft 69, respectively. a moving clutch member 91 which is loosely fitted on the axis of the rotor shaft 69 between the sprocket 85 and the high speed sprocket 87, the shifter 92 being always in and engaged to the clutch member 91 is mounted. The claws 91a and 91b are provided on both side surfaces of the clutch body 91, and the claws 85 and 87a are provided on the side surfaces of the rotor shaft 69 facing the clutch body 91 of the low speed sprocket 85 and the high speed sprocket 87, respectively. The claws 91a and 91b on both sides of the body 91 can be locked with the claws 85a and 87a of the low speed sprocket 85 and the high speed sprocket 87, respectively.
The rotor shaft 69 is connected to a universal joint 72 (FIG. 8), and the rotor 27 is driven via the universal joint 72.

  The shifter 92 is disposed at a position parallel to the rotor shaft 69 at a position adjacent to the rotor shaft 69, and is not always locked with the low speed sprocket 85 and the high speed sprocket 87 of the shifter 92 by the compression spring 93 wound around the shifter 92. It is urged to be held in.

  A shifter operating arm 95 that is rotatably supported by a rotation fulcrum provided on a cover 102 fixed to the rotor transmission case 19 is attached to a position facing a shifter 92 that protrudes outside the rotor transmission case 19. . One end of the shifter operating arm 95 is locked to a shifter 92 extending to the outside of the rotor transmission case 19. The shifter operation arm 95 is configured to be able to slide the shifter 92 against the urging force of the spring 93 attached to the shifter 92.

  An inner wire 96a of a high-speed operation cable 96 is connected to one side of the rotation fulcrum 95a of the operation arm 95 for operating the shifter 92, and a low-speed operation cable 97 is connected to the other side of the rotation fulcrum 95a. The inner wire 97b is connected. The outer 96b of the high-speed operation cable 96 and the outer 97b of the low-speed operation cable 97 are attached to an attachment arm 99 that can be moved by rotation around the attachment rotation fulcrum 99a. An outer arm 100b of a drive on / off operation cable 100 for turning on / off the rotor is attached to the mounting arm 99, and the inner wire 100a of the drive on / off operation cable 100 is connected so as not to move to the fixing member 101 on the machine body side. To do.

  The operation of the drive on / off operation cable 100 is performed by operating the rotor height adjusting lever 106 and pulling the other end of the inner wire 100a whose one end is fixed to the fuselage to the outer 100b. The wire 100b moves in the direction of arrow C (FIG. 11A), and the mounting arm 99 interlocked with this movement rotates in the direction of arrow D in FIG. In addition, the inner wire 97b of the low-speed operation cable 97 is loosened, and the clutch body 91 is moved to the neutral position where the rotor is not driven by the spring 93 of the shifter operation arm 95.

FIG. 12 shows a side view of the raising and lowering links 40 and 41 of the seedling planting part 4 and the vicinity of the rear wheel gear case 18. The upper link 40 and the lower link 41 for moving the raising and lowering link interlocking arm 108 up the seedling planting part 4. 12 (lower link 41 in the example shown in FIG. 12), when the raising / lowering switch (not shown) of the seedling planting section 4 is raised, the raising / lowering links 40, 41 are raised, and this rise Similarly to the operation of the rotor height adjusting lever 106 in conjunction with the operation, the lift link interlocking arm 108 is operated to pull the operation cable 100 for driving on / off, and the outer wire 100b of the operation cable 100 for driving on / off. Moves in the direction of arrow C (FIG. 11 (a)), and the mounting arm 99 interlocking with this movement rotates in the direction of arrow D in FIG. 11 (b), so that the inner wire 96a of the high-speed operation cable 96 and Slack inner wire 97b of the medium speed control cable 97, moves to the neutral position clutch 91 is not driven rotor by the spring 93 of the shifter operating arm 95. When the seedling planting part 4 is raised in this way, it can be prevented that the rotor 27 is erroneously operated while being set at the high speed or low speed position.
The driving on / off operation cable 100 is branched into two at a branching portion 116 in the middle so as to be connected to the rotor height adjusting lever 106 and the lift link interlocking arm 108.

  Further, as shown in FIG. 12, a rotor speed change lever 105, which is a rotor speed change operation device for operating the high speed operation cable 96 and the low speed operation cable 97, is disposed near the control seat 31. Accordingly, when the rotor speed change lever 105 is switched to the high speed side or the low speed side, the high speed operation cable 96 or the inner 96a or the inner 97a of the low speed operation cable 97 connected to the lever 105 is pulled, and the shifter operation arm 95 is moved. The shifter 92 interlocked with the movement of the shifter operating arm 95 operates the high-speed side sprocket 87 or the low-speed side sprocket 85 to rotate the rotor shaft at high speed or low speed, and the first rotor 27a and the second rotor 27b operate at high speed. Or it will rotate at low speed.

  In order to eliminate malfunction caused by mud adhering to the shifter 92 portion of the rotor transmission B, the shifter operating arm 95, the inner wires 96a, 97a, 100a of the cables 96, 97, 100, the mounting arm 99, and the fixing A cover 102 is provided to cover the member 101, and the cover 102 is also used as a shaft bearing of the rotation fulcrum 95 a of the operation arm 95 of the shifter 92 and a shaft of the mounting arm 99.

  Further, in the configuration in which the rotor 27 automatically returns to the rotation stop position (neutral position) when the seedling planting section 4 is raised as described above, the seedling planting section 4 has a structure as shown in FIG. When raised, the rotor speed change lever 105 automatically returns to the position where the rotor speed change device B is automatically moved from the high speed side to the low speed side. Even if the rotor speed change lever 105 moves to the low speed position when the seedling planting part 4 is raised, as described above, the high speed operation cable is provided by the mounting arm 99 interlocked with the operation of the drive on / off operation cable 100. Since the inner wire 96a of the 96 and the inner wire 97b of the low speed operation cable 97 are slack, the clutch body 91 is held at the neutral position where the rotor 27 is not driven by the spring 93 of the shifter operation arm 95.

  Further, by setting the heel clutch 130 to “ON” while the seedling planting unit 4 is moving up, it is possible to prevent a problem of forgetting to set the heel clutch 130 to “ON” when planting seedlings for the next section.

  That is, when the working machine in the field comes to the edge of planting seedlings for one line, the paddle clutch 130 is turned off and the field is turned. And when turning is finished, it is easy to forget to turn the heel clutch 130 “on” when planting the seedlings of the next section by dropping the seedling planting unit 4 to the field, and work without planting the seedlings as they are There is a risk of moving the aircraft forward. Therefore, when the seedling planting part 4 is raised, the hook clutch 130 is set to “ON”.

Therefore, as shown in FIG. 12, when the seedling planting portion 4 is raised, the cable 110 pulled by the lifting link interlocking arm 108 operates the heel clutch (planting unit clutch) lever 14 to “engage” the heel clutch 130. Put it in a state.
Even if the heel clutch 130 is “engaged” when the seedling planting part 4 is lifted, power is not transmitted from the seedling planting gear case 25 to the seedling planting part when the seedling planting part 4 is lifted. The planting part 4 does not operate.

  The rotor transmission device B can switch the rotational speed of the rotor 27 between a high speed state and a low speed state, but maintains the clutch body 91 of the rotor transmission device B in a neutral state where the high speed sprocket and the low speed sprocket are not engaged. This is possible, and there is no need to provide a separate clutch mechanism.

  In the conventional rotor 27, the rotation speed of the rotor 27 is constant at about 1.7 times the peripheral speed of the rear wheel 11, and the rotation ratio is set so that the seedling planting speed is maximized. However, since it is set so that there is no influence of water pushing or mud pushing on the adjacent strip, when running on a field scene with many irregularities at low speed by leveling treatment of the field of the rotor 27 on the headland In some cases, sufficient leveling could not be obtained.

  Accordingly, the rotation speed of the rotor 27 shown in FIG. 11 can be switched between high speed and low speed so that the field leveling process can be effectively performed. FIG. 13 shows the rotor 27 of the rotor 27 transmission. A configuration in which the electric motor 113 performs switching between high speed and low speed of rotation is shown.

  The configuration shown in FIG. 13 is a configuration for operating the shifter operation arm 95 using an electric motor 113 instead of the cables 96, 97, and 100 shown in FIG. 11, and is fixed to a rotating shaft operated by the electric motor 113. The rotating arm 118 and a spring 117 having one end engaged with each other on the opposite sides of the rotating shaft are arranged, and the other end of the spring 117 is engaged with the shifter operating arm 95.

  In this case, when the saddle clutch lever sensor 159 detects that the saddle clutch 130 is “disengaged”, it is determined that the headland is being processed. When the saddle clutch 130 is “disengaged”, the control device 200 causes the motor 113 to operate. When the rotor 27 is operated, the rotor 27 is rotated at a high speed to quickly correct the roughness of the field. When the paddle clutch is “on”, the electric motor 113 quickly switches to a low speed rotation.

The second rotor 27 b is suspended by a pair of link members 76 and 77 whose upper ends are supported by the beam member 66 via a spring 78.
The pair of link members 76, 77 includes a first link member 76 whose one end is fixedly supported by the beam member 66 and a second link member 77 whose one end is rotatably connected to the other end of the first link 76. Thus, the spring 78 is connected between the other end of the second link member 77 and a mounting piece 74 a rotatably supported by the reinforcing member 74.

A bent piece 82 is fixed to the lower end of the rotor vertical position adjusting lever 81, and the bent piece 82 is rotatably supported by the support frame 65. When the lever 81 is rotated in the left-right direction of the vehicle, the lever 81 is bent near the protrusion 66a fixedly supported by the beam member 66 that is rotatably supported by the side members 65b of the support frame 65. The piece 82 rotates up and down. Since the bent piece 82 is locked below the protrusion 66a, the protrusion 66a rotates the lever 81 in the right direction of the machine body (in the direction of arrow S in FIG. 9), and the beam member 66 is centered upward. As a result of the rotation of the protrusion 66a, the end of the first link member 76 opposite to the connecting portion with the beam member 66 also rotates upward about the beam member 66. By rotating the first link member 76 upward, the second rotor 27b can be raised upward via the second link member 77 and the spring 78. When the second rotor 27b is moved upward, the first rotor 27a is also simultaneously moved upward via the second drive shaft 70b and the first drive shaft 70a.
Since the rotor vertical position adjusting lever 81 is provided at substantially the center of the vehicle body 2, it is easy to balance left and right when the first rotors 27a and 27b are moved up and down.

  A rotor housing lever 84 that also serves as a clutch lever is fixed to the beam member 66. When the lever 84 is rotated in the direction of arrow T (FIG. 8), the support arm 67 is interlocked with the rotation of the beam member 66. Also rotates in the direction of arrow T. Since the rotor support frame 68 is moved upward by the rotation of the support arm 67 in the direction of the arrow T, the first and second rotors 27a and 27b are stored at the storage position, that is, on the back side of the seedling stage 51. Can be moved.

  In this embodiment, the rotors 27a and 27b, which are at a height of 45 mm from the farm scene at the low speed position of the rotor vertical position adjusting lever 81, can be raised up to 15 mm from the low speed position by turning in the direction of arrow S in FIG. It is set so that it can be lowered by a maximum of 15 mm from the low speed position by turning in the direction opposite to the arrow S direction.

Further, as shown in FIG. 1, a rotor cover 37 (first rotor cover 37a, first rotor cover 37b) is provided on the upper rear side of the rotor 27 so that mud is not applied to the floats 55, 56.
As a configuration for rotating the beam member 66, a configuration is used in which the beam member 66 is rotated by an electric motor provided at one end of the beam member 66 instead of the protrusion 66 a, the bent piece 82, and the rotor vertical position adjusting lever 81. Also good.

  In the present invention, the seedling planting part of the rice transplanter can be configured simply and has a high possibility of use.

DESCRIPTION OF SYMBOLS 1 Riding type rice transplanter with fertilizer 2 Traveling vehicle body 3 Elevating / lowering link device 4 Seedling planting part 5 Granule feeding device (fertilizer) 10 Front wheel 11 Rear wheel 12 Mission case 13 Front wheel final case 15 Main frame 18 Rear wheel gear case 19 Rotor transmission case 20 Engine 21 Belt transmission device 23 HST 25 Planting clutch case 26 Planting transmission shaft 27 (27a, 27b) Rotor 27a First rotor 27b Second rotor 28 Fertilizer transmission mechanism 30 Engine cover 31 Seat 32 Front cover 34 Handle 35 Floor step
36 Rear step 37 (37a, 37b) Rotor cover 38 Preliminary seedling stage 38a-38c First preliminary seedling stage-third supplementary seedling stage 39a-39c First moving link member-third moving link member 41 Upper link 42 Lower link 42 Link base frame 43 Vertical link 44 Connecting shaft
45a to 45c First auxiliary link to third auxiliary link 46 Elevating hydraulic cylinder 47a to 47f Stopper 48a to 48c First to third partition plate 50 Transmission case 51 Seedling stand 51a Seedling outlet 51b Seedling feeding belt 52 Seedling feeding device 52a Seedling planting tool 53 Blower electric motor 55 Center float 56 Side float 58 Blower 59 Air chamber 60 Fertilizer hopper 61 Feeding part 62 Fertilization hose 64 Power input shaft 65 Seedling planting part support frame 65a Support roller 65b Both side members
66 Beam member 66a Protruding portion 67 Support arm 68 Rotor support frame 69 Rotor shaft 70 (70a, 70b) Drive shaft 70a First drive shaft 70b Second drive shaft 71 Connecting member 72 Universal joint 73a Rotation lock plate 73b Rotation lock lever 73c Rotation lock pin 75 Drawing marker 76 First link member 77 Second link member 78 Spring 81 Rotor vertical position adjustment lever
82 Bending pieces 83, 85 Low speed sprocket 85, 87a Claw 84 Rotor housing lever 86, 87 High speed sprocket 89, 90 Chain 91 Moving clutch body 91a, 91b Claw 92 Shifter 93 Compression spring 95 Shifter operation arm 96 High speed Operation cable 97 Low-speed operation cable 99 Mounting arm 100 Driving on / off operation cable 101 Fixing member 102 Cover 104 Spring 105 Rotor shift lever 106 Rotor height adjustment lever 108 Lift link interlocking arm 110 Cable 113 Rotor lift motor 114 Rotor shift Motor 116 branching portion 117 spring 118 rotating arm A rotor leveling device B rotor transmission device

Claims (3)

Traveling vehicle body (2),
A working section (4) connected to the traveling vehicle body (2) so as to be movable up and down;
First, second, and third spare seedling stands (38a, 38b, 38c) disposed on the traveling vehicle body (2) and supported by the traveling vehicle body (2);
A first moving link member (39a) connected to the front end side surface or the rear end side surface of the second preliminary seedling table (38b) and the central side surface of the first preliminary seedling table (38a);
A third moving link member (39c) connected to the rear end side surface or front end side surface of the second preliminary seedling table (38b) and the central side surface of the third preliminary seedling table (38c);
The center side surface of the second preliminary seedling table (38b), the rear end side surface of the first preliminary seedling table (38a), and the front end side surface of the third preliminary seedling table (38c) are respectively connected or second A second moving link member connecting the central side surface of the preliminary seedling table (38b), the front side surface of the first preliminary seedling table (38a) and the rear side surface of the third preliminary seedling table (38c) ( 39b)
The positions at which the first, second and third spare seedling stands (38a, 38b, 38c) are arranged in three upper and lower stages and the first, second and third spare seedling stands (38a, 38b, 38c) are almost the same. The first, second and third moving link members (39a, 39b, 39c) are rotatable to positions arranged on the same plane,
The first, second and third moving link members (39a, 39b, 39c) are provided only on one side surface of the first, second and third preliminary seedling stands (38a, 38b, 38c),
The first moving link member (39a) and the second auxiliary seedling stand (38b) are connected to the front end portion or the rear end portion of the first auxiliary link (45a) so as to be rotatable.
The first auxiliary link (45a) is arranged in a posture that is bent with respect to the longitudinal direction of the first moving link member (39a),
The second moving link member (39b) and the rear end portion or front end portion of the first preliminary seedling stand (38a) are rotatably connected by the second auxiliary link (45b);
The second moving link member (39b) and the front end or the rear end of the third preliminary seedling stand (38c) are rotatably connected by the third auxiliary link (45c),
The second auxiliary link (45b) and the third auxiliary link (45c) are arranged in a posture that is bent with respect to the longitudinal direction of the second moving link member (39b),
The third moving link member (39c) and the second auxiliary seedling stand (38b) are connected to the rear end or front end of the second auxiliary seed stand (38b) by the fourth auxiliary link (45d),
The fourth auxiliary link (45d) is arranged in a posture that is bent with respect to the longitudinal direction of the third moving link member (39c) ,
A first stopper (47a) is provided on the front side of the first preliminary seedling stand (38a),
A sixth stopper (47f) is provided on the rear side of the third preliminary seedling stand (38c),
The first auxiliary link (45a) has a third stopper (47c), the second auxiliary link (45b) has a second stopper (47b), the third auxiliary link (45c) has a fourth stopper (47d) and a fourth stopper. Each auxiliary link (45d) is provided with a fifth stopper (47e),
When the first preliminary seedling stand (38a), the second preliminary seedling stand (38b), and the third preliminary seedling stand (38c) are arranged in three vertical rows, the first, second, The third, fourth, fifth and sixth stoppers (47a, 47b, 47c, 47d, 47e, 47f) rise, respectively, and the first preliminary seedling table 38a, the second preliminary seedling table (38b) and the third stopper When the preliminary seedling table (38c) is arranged side by side on the same plane, the second and fifth stoppers (47b, 47e) are provided with the first, second and third preliminary seedling tables (38a, 38b, A seedling transplanting machine comprising a configuration in which the first and sixth stoppers (47a, 47f) rise while moving downward from the upper plane of 38c) . The first, second, and third moving link members (39a, 39b, 39c) are provided with electric motors,
The seedling transplanter according to claim 1, wherein the electric motor rotates the first, second and third moving link members (39a, 39b, 39c). The first, second and third preliminary seedling stands (38a, 38b, 38c) are configured to rotate around the vertical rotation axis and expand and expand both inside and outside the aircraft,
The second preliminary seedling table (38b) is fixed so that it does not move even when the first, second and third moving link members (39a, 39b, 39c) are operated, and the first and third preliminary seedling tables ( 38a, 38c) are movable so as to move when the first, second and third moving link members (39a, 39b, 39c) are operated,
The connection position between the first and third movable link members (39a, 39c) and the front end portion or the rear end portion of the second preliminary seed stand (38b) is the first and third preliminary seed stands (38a, 38c). ) Is substantially coplanar with the second preliminary seedling stand (38b) and is close to a position facing the front end or the rear end of the first and third preliminary seedling stands (38a, 38c), When the 1st and 3rd reserve seedling stands (38a, 38c) are arranged side by side with the second reserve seedling stand (38b), they are connected to the end of the second reserve seedling stand (38b). The first and third preliminary seedling stands (38a, 38c) are arranged on opposite sides of the second preliminary seedling stand (38b), and the first and third preliminary seedling stands (38b) are arranged above and below the second preliminary seedling stand (38b). 3 of preliminary seedling stage (38a, 38c) claims, characterized in that a second mobile link member for moving the (39 b) Or seedling transplantation machine as set forth in any one of claims 2.

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