CN203575064U - Seedling transplanter - Google Patents

Abstract

The utility model provides a seedling transplanting machine. The seedling transplanting machine arranges a plurality of seedling planting devices (10) on the left and right with different planting row spacings, arranges a plurality of floating bodies on the left and right to level the planting positions of the seedling planting devices (10) in each row, and is made of a pair of floating bodies The left and right planting positions of the wide planting row spacing perform a flat structure. In addition, wide planting row spacing is formed in the left and right center. According to the seedling transplanting machine of the present invention, the cultivation after planting can be performed favorably by utilizing the wide planting row spacing, and the management work after planting, etc. can be easily performed.

Description

Seedling transplanting machine

technical field

The utility model belongs to the technical field of seedling transplanting machines such as rice transplanting machines.

Background technique

As an example of a seedling transplanting machine, there is known a walk-on rice transplanter for planting in four rows as follows, that is, a seedling-carrying platform provided with a seedling-carrying part with a plurality of planting rows, and the seedling-carrying platform is made by using a lead cam and a guide cam. The left and right moving mechanism of the camshaft moves to the left and right along the seedling support plate, and supplies the seedlings one by one to the structure of each row of seedling taking ports on the seedling supporting plate. The seedling planting device in the farmland arranges a plurality of seedling planting devices on the left and right with different planting row spacings, arranges a plurality of floating bodies on the left and right, forms a wide planting row spacing in the center of the left and right, and is provided with wheels that become left and right traveling bodies (refer to the patent Document 1 and Patent Document 2.).

In addition, there is known a walking-type rice transplanter for planting in six rows, that is, a seedling loading platform provided with a seedling loading unit having a plurality of planting rows, and a plurality of seedling planting devices are arranged on the left and right with different planting row spacings, and in the left and right center The wide planting row spacing is constituted, and the wheels serving as left and right running bodies are provided on the narrow planting row spacing (see Patent Document 3.).

prior art literature

patent documents

Patent Document 1: Chinese Patent Announcement No. 101796905

Patent Document 2: Chinese Patent Announcement No. 101803502

Patent Document 3: China Utility Model Announcement No. 201733597

Utility model content

The object of the present invention is to use wide planting row spacing to perform good cultivation after planting and to facilitate post-planting management work and the like.

In order to solve the above-mentioned problems, the following technical measures are taken.

That is, the utility model of scheme 1 is a kind of seedling transplanting machine, it is characterized in that,

A plurality of seedling planting devices are arranged on the left and right with different planting row spacings, and a plurality of floating bodies for leveling the planting positions of the seedling planting devices of each row are arranged on the left and right, so that the left and right planting positions with a wide planting row spacing are formed by one floating body pair Make a flat structure.

In addition, the utility model of scheme 2 is according to the seedling transplanting machine described in scheme 1, it is characterized in that,

A wide planting row spacing is formed in the left and right centers.

In addition, the utility model of scheme 3 is according to the seedling transplanting machine described in scheme 2, it is characterized in that,

The left and right running bodies are located in the narrow planting row spacing without floating bodies.

In addition, the utility model of scheme 4 is according to the seedling transplanting machine described in scheme 1 or 2, it is characterized in that,

In the above-mentioned one floating body, each planting ground leveling member for leveling the planting positions on the left and right is detachably configured.

In addition, the utility model of scheme 5 is according to the seedling transplanting machine described in scheme 1 or 2, it is characterized in that,

In the above-mentioned one floating body, each planting leveling member for leveling the left and right planting positions is provided in a manner protruding to the left and right, and a running body is provided at each narrow planting row spacing on the left and right adjacent to the left and right planting positions.

In addition, the utility model of scheme 6 is according to the seedling transplanting machine described in scheme 1 or 2, characterized in that,

Make a four-row planting structure with adjacent left and right planting positions of one line each on the left and right of the planting position of the left and right two lines leveled by the above-mentioned one floating body, and set the left and right side floating bodies that level the planting position of the above-mentioned line .

Effect of the present utility model is as follows.

According to the utility model of the aspect 1, the cultivation after planting is favorably performed using the wide planting row spacing. In addition, since the wide planting row spacing is leveled by one floating body, post-planting management work and the like can be easily performed on the wide planting row spacing.

According to the utility model of claim 2, in addition to the effect of the utility model of claim 1, since the floating body with a large left and right width for leveling the wide planting row spacing is arranged at the left and right center of the body, it is possible to suppress the left and right tilt due to the left and right inclination of the body. The floating body with large width draws the marks of land preparation and improves the performance of land preparation.

According to the utility model of claim 3, in addition to the effect of the utility model of claim 2, the water flow or mud flow generated from the left and right running bodies can be smoothly discharged to the rear, and the water flow or mud flow to the planting position can be suppressed, and the seedlings can be improved. Planting precision.

According to the utility model of claim 4, in addition to the effects of the utility model of claim 1 or claim 2, the floating body can be made to correspond to different planting row spacings by removing the planting ground leveling member.

According to the utility model of claim 5, in addition to the effect of the utility model of claim 1 or plan 2, by making the structure in which the floating body is not arranged as much as possible in the narrow planting row space where the running body is arranged, it is possible to generate the floating body from the left and right running bodies. The water flow or mud flow can be smoothly discharged to the rear, which can suppress the water flow or mud flow flowing to the planting position, and improve the planting accuracy of the seedlings.

According to the utility model of claim 6, in addition to the effects of the utility model of claim 2 or 3, the side floating body can be made into a structure with a narrow left and right width for leveling the planting position of one row, and water can flow from the side floating body to the side. Or mud flow, improve the planting accuracy of seedlings.

Description of drawings

Fig. 1 is a side view showing a walking rice transplanter.

Fig. 2 is a plan view showing a partially cutaway walk-type rice transplanter.

Fig. 3 is a plan view showing the arrangement of a central floating body and side floating bodies.

Fig. 4 is a plan view showing the central floating body.

Fig. 5 is a sectional view showing a side clutch.

Fig. 6 is a plan view showing a transfer link member, a connecting rod and its peripheral parts.

Fig. 7 is a sectional side view showing an adapter link member, a connecting rod and its peripheral parts.

Fig. 8 is a perspective view showing a transition link member, a connecting rod, and its peripheral parts for easy identification.

Fig. 9 is a side view showing the main frame and the planting transmission case.

Fig. 10 is a front view showing a seedling loading platform and a plate body.

Fig. 11 is a side view showing a seedling loading platform and a plate body.

Fig. 12 is a cross-sectional view of S1-S1 in Fig. 11 showing a seedling loading platform and a plate body.

Fig. 13 is a partially enlarged side view showing a seedling loading platform and a plate body.

Fig. 14 is a cross-sectional development plan view showing the planting transmission box.

Fig. 15 is a perspective view showing a planting depth adjustment mechanism.

Fig. 16 is a cross-sectional development plan view showing the planting transmission case when the entire planting row spacing is 30 cm.

17 is a perspective view showing a vibrator (vibrator), a rolling drive device, and its peripheral components for easy identification.

Detailed ways

One embodiment of the present invention will be described below. In addition, the following embodiment is always one embodiment, and does not limit the scope of the claim of the invention.

The walking type rice transplanter 1 as an example of a seedling transplanting machine is equipped with: an engine 2 as a prime mover provided at the front end of the body; a main transmission case 3 provided on the rear side of the engine 2; respectively the main transmission case 3) Left and right travel transmission boxes 4 as travel support components; wheels 5 as left and right travel bodies driven by power from the travel transmission box 4; main frame 6 extending rearward from the rear side of the main transmission box 3; The planting transmission box 7 fastened to the rear end of the main frame 6; the rear frame 8 extending obliquely from the rear side of the planting transmission box 7; and the operating handle 9 installed at the rear end of the rear frame 8 . In addition, the operation handle 9 is fixed to the rear frame 8 and cannot change its position. A plurality of (four) seedling planting devices 10 are installed on the bottom of the planting transmission box 7, and the left and right seedling loading platforms 11 supported on the frame 8 in a manner capable of moving left and right are provided on the front side of the rear frame 8. In addition, each right and left seedling loading stand 11 is a structure provided with two rows of the seedling loading part 11a which has two extended seedling loading part 11aa. Therefore, this walk-type rice transplanter 1 has a four-row planting structure in which four rows of seedlings are simultaneously planted in an agricultural field while traveling. In addition, among the four rows of seedling planting devices 10, the seedling planting devices 10 on the left and right central sides are separated from each other with an arrangement pitch of 50 cm, and the seedling planting devices 10 on the left and right sides are separated from the adjacent left and right central side seedlings. The planting devices 10 are disposed close to the seedling planting devices 10 on the left and right central sides with an arrangement pitch of 25 cm. Among the four planting rows, the planting row spacing in the left and right centers is 50 cm. The planting row spacing is 25cm.

Therefore, the above-mentioned engine 2, main transmission case 3, travel transmission case 4, wheels 5, etc. constitute a running part (traveling vehicle body), and the planting transmission case 7, seedling planting device 10, and seedling loading platform 11 etc. constitute a planting part. In addition, this walk-type rice transplanter 1 does not provide a marker for marking a line at a field position that is a mark of the next trip, but instead provides a side marker 60 that is a mark of a position adjacent to a planting row. This side marker 60 is attached to the front part of the side floating body 12b mentioned later, and has a structure which protrudes from the side floating body 12b to the left-right outer side which is the position adjacent to a planting row.

In addition, a floating body 12 as a plurality of (three) grounding bodies in contact with the farmland surface is provided at the lower part of the machine body, and the floating body 12 slides on the farmland surface to level the ground when the machine body travels. In the floating body 12, the central floating body 12a in the center of the left and right of the body is leveling off the planting positions of the two rows of seedling planting devices 10 on the left and right insides of the planting row spacing (50cm), and the side floating bodies 12b on the left and right sides of the body are aligned with each other. The planting positions of each row of seedling planting devices 10 on the outside are leveled. The front end of central floating body 12a is positioned at the front side than the front end of side floating body 12b. In addition, the central floating body 12a and the side floating bodies 12b are vertically supported around horizontally rotatable fulcrum shafts 13 arranged at the same position when viewed from the side, and have a structure in which the front part follows the unevenness of the field surface and moves up and down. In addition, the left and right wheels 5 are respectively arranged at the left and right central positions of the narrow planting row spacing of 25 cm between the planting positions of the left and right inner seedling planting devices 10 and the planting positions of the left and right outer seedling planting devices 10 . Therefore, the central float 12 a is arranged between the left and right wheels 5 , and the side floats 12 b are arranged on the left and right outer sides of the left and right wheels 5 .

With regard to the central floating body 12a as an example of the floating body, the left-right width of the rear part 91 is narrower than the left-right width of the front part 90, there is a space behind the front part 90 and on the side of the rear part 91, and there is a gap between the front part 90 and the rear part. Between 91, there are planting and soil leveling components 92 protruding to the left and right outer sides. The planting positions of the two rows of seedling planting devices 10 on the left and right sides are located on the left and right sides of the rear portion 91 of the central floating body 12a, and each planting and leveling member 92 on the left and right is located in front of the above-mentioned planting positions. The left and right planting leveling components 92 are fastened to the main body of the central floating body 12a by means of mounting bolts 93 for leveling components. In a state where the mounting bolts 93 for leveling components are removed and the left and right planting leveling components 92 are removed, there are also planting leveling parts 94 that protrude slightly outward to the left and right, and can also be used as plants with a planting row spacing of 30 cm. The floating body of the rice transplanter for individual planting row spacing.

As far as the side floating body 12b is concerned, the left-right width of the rear portion 96 is narrower than the left-right width of the front portion 95, and there is a space behind the front portion 95 and on the side of the body of the rear portion 96 in the left-right direction. Between the parts 96, a planting and land preparation part 97 protruding inwardly in the left-right direction of the body is provided. The planting positions of the left and right outermost seedling planting devices 10 are located behind the planting leveling part 97 .

The output shaft of the engine 2 protrudes into the main transmission case 3 , and the power from the engine 2 is transmitted to the main transmission case 3 . Set in the main transmission box 3: the main clutch that can disconnect all transmissions to the wheel 5, the seedling planting device 10 and the seedling loading platform 11; The power branch of the transmission path of the seedling planting device 10 and the seedling-carrying platform 11; on the transmission path to the above-mentioned seedling planting device 10 and the seedling-carrying platform 11, the transmission to the seedling planting device 10 and the seedling-carrying platform 11 can be disconnected Planting clutch: on the transmission path to the above-mentioned wheels 5, it can be switched and shifted to a forward high-speed state for driving on the road, a forward low-speed state for planting operations, and a neutral state in which the gears are not meshed and become non-transmission by switching the gears engaged on the transmission path to the above-mentioned wheels 5. and the four-state transmission part of the reverse state; and the left and right side clutches 61 that can switch the transmission to the left and right wheels 5 to the non-transmission state on the transmission downstream side of the transmission part. Therefore, the transmission is transmitted to the respective left and right travel output shafts 101 protruding from the main transmission case 3 to the left and right through the above-mentioned transmission portion and the side clutch 61 . In addition, the travel output shaft 101 serves as a rotation axis for vertically rotating the travel transmission case 4 . It is a structure in which the axle 14 provided at the rear end part of the travel transmission case 4 moves up and down by the vertical rotation of the travel transmission case 4, and the wheel 5 moves up and down.

The side clutch 61 includes: a cylindrical input side member 63 that rotates integrally with the sun gear 62 in the main transmission case 3; a ball (ball) 65 that enters a groove 64 provided in the input side member 63 from the rotation outer peripheral side; The output side member 66 on the outside of the ball 65 . The input side members 63 of the left and right side clutches 61 are arranged on the left and right sides of the sun gear 62 , and the left and right input side members 63 are configured to rotate around the respective left and right drive output shafts 101 inserted therein. The output side member 66 is splined to each of the left and right travel output shafts 101 , has a structure that rotates integrally with the travel output shafts 101 , and is configured to be movable to the left and right along the travel output shafts 101 . On the output side member 66, a ball receiving portion 67 with a large inner diameter is formed to accommodate the ball 65 dropped from the groove 64 of the input side member 63, and a ball 65 is formed to push the ball 65 into the groove 64 from the outside on the inner side of the ball receiving portion 67. The ball pushes into part 68. Furthermore, the inner diameter of the ball insertion portion 68 is smaller than the inner diameter of the ball storage portion 67 . In addition, a side clutch switching arm 69 operated by a side clutch lever 41 described later is provided on the left and right, respectively, and the output side member 66 is moved left and right by the operation of the side clutch switching arm 69, and the ball receiving part 67 is switched so as to A side clutch disengagement position at a position facing the ball 65 and a side clutch on position at a position facing the ball 65 with the ball push-in portion 68 are configured. That is, at the side clutch disengagement position, the ball is housed in the ball housing portion 67 by utilizing the centrifugal force generated by the rotation, and the ball 65 escapes from the groove 64 of the input side member 63, so power is not transmitted from the input side member 63 to the output side member 66. . On the other hand, in the side clutch ON position, the ball pushing portion 68 forcibly pushes the ball 65 into the groove 64 of the input side member 63, so power is transmitted from the input side member 63 to the output side member 66 via the ball 65, and the output The side member 66 rotates integrally with the input side member 63 . Further, the output side member 66 is biased toward the side where the side clutch 61 is in the ON state (outward in the left-right direction) by the return compression spring 70 . In addition, although the above-mentioned configuration is a configuration in which the side clutch 61 is turned on and off by moving the output side member 66 left and right, it is also possible to make a configuration in which the side clutch is turned on and off by moving the input side member left and right. The grooves 64 and the balls 65 of the input side member 63 are arranged so that the rotation phase angle of the input side member 63 and the output side member 66 is 60 degrees, and six are provided. Therefore, by providing a plurality of balls 65, the operation load of the side clutch 61 can be reduced, and the side clutch can be disengaged immediately.

The travel output shaft 101 protrudes into the travel transmission case 4, the countershaft 71 is provided at the front and rear middle of the travel transmission case 4, and the axle shaft 14 is provided at the rear end of the travel transmission case 4 so as to protrude outward in the left and right direction of the body. In the travel transmission box 4, the first transmission chain 73 is wound between the first drive sprocket 102 provided on the travel output shaft 101 and the first driven sprocket 72 provided on the countershaft 71, and the first transmission chain 73 is used to 73 is transmitted from the travel output shaft 101 to the countershaft 71 . In addition, the first driven sprocket 72 has more teeth than the first driving sprocket 102 (the diameter of the first driven sprocket 72 is larger than the diameter of the first driving sprocket 102 ), and the first driving chain 73 Reduced transmission structure. In addition, on the counter shaft 71 , a second transmission chain is wound between the second driving sprocket 74 provided on the left-right outer side of the first driven sprocket 72 and the second driven sprocket 103 provided on the axle 14 . 104 , using the second transmission chain 104 to drive from the secondary shaft 71 to the axle 14 , and the wheels 5 are driven to rotate. In addition, the second driven sprocket 103 has more teeth than the second drive sprocket 74 (the diameter of the second driven sprocket 103 is larger than the diameter of the second drive sprocket 74 ), so that the second drive chain 104 The structure of deceleration and transmission.

In addition, the travel transmission case 4 includes: a first transmission chain storage portion 75 for storing the first transmission chain 73; a countershaft storage portion 76 for accommodating the countershaft 71; and a second transmission chain storage portion 77 for accommodating the second transmission chain 104, The second transmission chain 104 and the second transmission chain storage portion 77 are located outside the left-right direction with the first transmission chain 73 and the first transmission chain storage portion 75 as a reference, and the rear portion is located outside the left-right direction and is curved in a crank shape in plan view. The shape is such that the wheels 5 are disposed outside the second transmission chain 104 and the second transmission chain storage portion 77 in the left-right direction.

In addition, behind the left and right wheels 5 , rakes 78 for leveling the running marks of the wheels 5 formed in the farmland are respectively provided on the left and right sides. This rake 78 is attached to the machine body via a rake mounting member fastened to the seedling support plate 27 .

In addition, the planting clutch transmits power to the planting transmission case 7 via the planting transmission shaft 15 extending rearward from the main transmission case 3 . In addition, the engine 2 and the main transmission case 3 are arranged on the front side of each axle 14 of the left and right wheels 5, and the planting part provided with the planting transmission case 7, a plurality of seedling planting devices 10, and the seedling loading platform 11 is arranged on the opposite side. The respective axles 14 of the left and right wheels 5 are further on the rear side.

Fasten the hydraulic pump on the left side of the main transmission case 3, fasten the hydraulic valve unit at the rear of the main transmission case 3, and fasten the single-acting hydraulic lift cylinder (lift cylinder) on the rear side of the hydraulic valve unit. ) 16. The hydraulic lift cylinder 16 is equipped with a piston rod 17 as a moving member that moves in the front-rear direction at the rear, and is disposed above the main frame 6 . Therefore, when the hydraulic pressure from the hydraulic pump is supplied to the hydraulic lift cylinder 16 by switching the hydraulic valve unit, the piston rod 17 moves rearward. In addition, when switching to a state where the hydraulic pressure in the hydraulic lift cylinder 16 is returned to the main transmission case 3 which is a hydraulic tank, the piston rod 17 moves forward by the body's own weight. Therefore, the hydraulic lifting cylinder 16 and the piston rod 17 serve as drivers. A transfer link member 18 serving as a transfer member is rotatably connected to the rear end portion of the piston rod 17 via a fulcrum shaft 19 in the vertical direction. The transfer link member 18 is connected to a fulcrum shaft 19 in the vertical direction at the left-right center, and has a bilaterally symmetrical shape. In addition, a spring support portion 18b is provided at the left and right central portion of the transfer link member 18, and a compression spring 22 serving as a first urging means provided on the piston rod 17 is in contact with the spring support portion 18b. Therefore, the compression spring 22 imparts rotational resistance to the transfer link member 18 about the fulcrum shaft 19 , so that the transfer link member 18 is rotated to the neutral position and returned to the neutral position in a no-load state.

In addition, a roll restricting portion 79 is provided on the fulcrum shaft 19 at the rear end portion of the piston rod 17 . The roll restricting portion 79 includes left and right protrusions 79 a protruding forward of the transfer link member 18 on the left and right sides of the fulcrum shaft 19 , so that when the transfer link member 18 rotates about the fulcrum shaft 19 by a predetermined angle or more, The structure in which the protrusions 79a on the left and right are in contact limits the angle of rotation of the transfer link member 18 centered on the fulcrum shaft 19, so that the height difference between the left and right wheels 5 will not be extremely generated, and the stability of the body will be realized.

The rear end portions of the left and right connecting rods 20 are connected to the left and right end portions of the transfer link member 18 by connecting shafts 23 in the vertical direction on the left and right. The front end of the connecting rod 20 is connected to the left and right arms 21 fastened to the upper side of the traveling transmission case 4 . Therefore, the ground contact load of the wheel 5 is received by the transfer link member 18 via the travel transmission case 4 , the arm 21 , and the connecting rod 20 .

A middle portion of the right connecting rod 20 constitutes a stretchable portion 24 for changing the effective length of the connecting rod 20 . The telescopic part 24 is comprised by the external thread formed in the front part of the connection rod 20, and the internal thread formed in the rear part of the connection rod 20, and the internal thread fits an external thread. Therefore, the length of the connecting rod 20 is adjusted by changing the length of the connecting rod 20 by relatively rotating the front and rear parts of the connecting rod 20 around the axis of the connecting rod 20 . Moreover, the lock nut 24a fixed is provided so that the front part and the rear part of the connecting rod 20 may not rotate relatively in the state which set the connecting rod 20 to desired length. On the other hand, the connecting rod 20 on the left side is constituted by an integral shaft member, has no telescoping portion 24, and has a structure in which the length cannot be changed.

A plate-shaped restricting member 26 serving as a restricting member is fastened to an intermediate portion of the connecting rod 20 . In addition, the stopper 26 of the connecting rod 20 on the right is provided at the front portion of the connecting rod 20 .

Moreover, the elastic member 80 which consists of the plate spring which connects the rear part of the left and right connection rods 20 is provided. This elastic member 80 has the following structure, that is, the elastic member is fastened on the mounting plate 81 with mounting bolts 82, and the left and right ends of the mounting plate 81 are fastened to the lower sides of the left and right connecting rods 20, and the elastic member 80 The left and right central portions of the elastic member 80 are arranged in a high position in a mountain shape when viewed from the front or rear of the body, and the compression spring 22 and the piston rod 17 are arranged below the left and right central portions of the elastic member 80 . Therefore, the elastic member 80 provides resistance to the opposite forward and backward movement of the left and right connecting rods 20, and in the no-load state, the transition link member 18 rotates to the neutral position to return. In addition, since the left and right central parts of the elastic member 80 have a high mountain shape, the elastic member 80 is configured so that it does not interfere with the compression spring 22 and the piston rod 17 . Furthermore, the elastic member 80 is configured to be located on the rear side of the restrictor 26 and the frame 25 irrespective of the vertical movement position of the wheel 5 , that is, the forward-backward movement position of the connecting rod 20 . In addition, the elastic member 80 can also be arranged at a front position and arranged on the upper side of the hydraulic lift cylinder 16 .

Therefore, when the hydraulic valve unit is switched to supply the hydraulic pressure from the hydraulic pump to the hydraulic lift cylinder 16, the piston rod 17 moves rearward, and the transfer link member 18 moves rearward. Connect the shaft 23 and pull the left and right connecting rods 20 to the rear side, so that the left and right arms 21 rotate to the rear side, so that the left and right travel transmission boxes 4 rotate downward, and the left and right wheels 5 move downward, and the body is relatively lower than Farmland rises. Conversely, when the hydraulic valve unit is switched in order to return the hydraulic pressure in the hydraulic lift cylinder 16 to the main transmission case 3, the ground load of the left and right wheels 5 is utilized, and the left and right arms 21, the left and right connecting rods 20, and the transfer link The rod member 18 and the like return the piston rod 17 forward, the left and right wheels 5 move upward, and the machine body descends relative to the field. In addition, it is configured such that when the body is raised to the maximum in order to move the left and right wheels 5 downward to the maximum and the piston rod 17 moves rearward to the stroke end, the left and right stoppers 26 are moved from the front side. The frame 25 in contact with the machine body restricts the rotation of the transfer link member 18 around the fulcrum shaft 19 and restricts the left and right wheels 5 from moving up and down in reverse.

The left and right wheels 5 want to temporarily rotate around the fulcrum shaft 19 against the compression spring 22 and the elastic member 80 in order to follow the left and right inclination of the plow bed of the farmland or the unevenness of the plow bed of the farmland, but the compression The spring 22 and the elastic member 80 rotate the transfer link member 18 to return to the neutral position, thereby maintaining the left-right rolling posture of the body and preventing the left-right tilting posture of the body from becoming unstable. In addition, by changing and adjusting the length of the connecting rod 20 on the right side using the telescoping portion 24 , it is possible to adjust the left-right inclination posture of the body.

The seedling planting device 10 and the seedling loading platform 11 are operated by power from the planting transmission box 7 . Each seedling-carrying platform 11 on the left and right is configured with an inclined posture that is low at the front and high at the rear when viewed from the side of the body, and is equipped with three parts that separate the seedling-carrying parts 11a of each row and prevent the seedlings from falling off from the seedling-carrying parts 11a. The mode is provided in the partition part 11b of the left and right both sides of the seedling loading part 11a. Moreover, the upper surface of the seedling loading part 11a becomes the seedling loading surface of the seedling loading stand 11. As shown in FIG. The seedling loading surface is low in the front and high in the rear, but the lower part is formed in a substantially planar shape, and has a structure that curves gently toward the rear side as it goes upward, so that the seedlings can be smoothly transferred downward. Moreover, the left-right width of each seedling loading part 11a is 231 mm, and the left-right width of each partition part 11b is 19 mm. Therefore, in each seedling loading stand 11, the seedling loading part 11a is arrange|positioned every 25 cm in the left-right direction. In addition, the left and right seedling-carrying platforms 11 are arranged at an interval of 231 mm in the left-right direction, that is, the arrangement pitch of the seedling-carrying parts 11 a of the left and right inside of the body of the seedling-carrying platform 11 is 50 cm, which is 50 cm from the planting row spacing in the center of the left and right. 50cm correspondence. Thereby, since all the seedling loading parts 11a and all the partition parts 11b are shared by the same member respectively in the seedling loading stand 11 on either side, cost reduction is aimed at.

The rail 34 for upper part movement extended to the left-right direction is fixedly provided in the upper part of the seedling loading platform 11. As shown in FIG. The rail 34 for this upper part movement is provided over the seedling loading stand 11 on either side, and is shared by the seedling loading stand 11 on either side. The upper moving rail 34 is supported so as to be movable left and right while being guided by a plurality of support rollers 33 supported from the upper portion of the rear frame 8 . On the other hand, the rail 98 for lower part movement extended in the left-right direction is provided firmly in the lower part of the seedling loading stand 11. As shown in FIG. The rail 98 for this lower part movement is installed over the seedling loading stand 11 on either side, and is shared by the seedling loading stand 11 on either side. The rail 98 for lower part movement is supported by the seedling support plate 27, is guided along this seedling support plate 27, and is supported so that a right-and-left movement is possible. And the left and right moving shaft 29 that protrudes to the left and right of planting transmission box 7 and moves left and right is set, the left end of left and right moving shaft 29 is connected with the seedling loading platform 11 on the left side by the connecting member 30 on the left side, The seedling loading platform 11 on the right side is connected by the connection member 30 on the right side. Therefore, the left and right seedling loading platforms 11 reciprocate left and right along the seedling support plate 27 , and supply seedlings one by one to the seedling taking ports 28 provided on the seedling support plate 27 . In addition, in order to correspond with the planting row spacing 50cm of the left and right center, the planting row spacing 25cm of the left and right side parts, the arrangement spacing of the seedling openings 28 on the left and right central sides is set to 50cm, and the seedling openings 28 of the left and right sides are adjacent to the left and right The arrangement spacing of the seedling-taking mouth 28 on the central side is set to 25cm. Therefore, the left and right seedling-carrying platforms 11 are supported on the seedling support plate 27 in the lower part to be able to move left and right, and are supported on the support roller 33 in the upper part to be able to move left and right, so that the power from the planting transmission box 7 can be used to move through the left and right movement shaft 29. And integrally reciprocating structure.

Moreover, each seedling loading part 11a of the seedling loading platform 11 is equipped with the seedling conveyance belt 35 of each line which transfers a seedling to the seedling picking mouth 28 side (lower side) at a left-right movement end. This seedling conveyor belt 35 moves by the power from the planting transmission case 7, and the cushion-shaped seedlings are transferred to the amount of one plant at the left and right moving ends of the seedling loading platform 11 and the seedlings are supplied to the seedling opening 28.

A plate body 99 made of an iron plate is provided between the seedling loading platforms 11 on the left and right. The plate body 99 becomes a shape in which the flat plate body is bent and bent at the bending part 99a in the middle part of the up-down direction, and is fastened by rivets to the upper moving rail 34 and the lower moving rail 98, and is inserted into the left and right seedling-carrying rails. Between the partition part 11b which becomes the left and right inner side edge of each body of the table 11. Therefore, the plate body 99 moves left and right together with the left and right seedling loading platforms 11 . In addition, the plate body 99 is inclined with a low front and a high rear. The lower part 99b of the plate body 99 below the bending part 99a is arrange|positioned along this seedling loading surface at the position which overlaps with the seedling loading surface of the seedling loading platform 11, or is close to this when seeing from a body side. The bending part 99a is arrange|positioned at the position which protrudes to an upper side (front side) rather than the said seedling loading surface which curves gently toward an upper part toward a rear side. The upper part 99c of the plate body 99 is more gentle than the inclination posture of the above-mentioned seedling loading surface (the gentlest inclination posture of the upper end portion of the above-mentioned seedling loading surface), and becomes the upper end of the plate body 99 when viewed from the side of the body. The part is located below the upper end part of the above-mentioned seedling loading surface. In addition, the upper portion 99c of the plate body 99 has a more gentle inclined posture than the lower portion 99b of the plate body 99, and has a structure in which the upper portion 99c of the plate body 99 is bent downward at the bent portion 99a, and the bent portion 99a protrudes upward.

The upper end of the plate body 99 is arranged at a position lower than the upper end of the seedling loading portion 11a of the left and right seedling loading platforms 11 and more on the front side, so as not to cover the operator (operator) who holds the operating handle 9 behind the plate body 99 The structure of the front view. Moreover, the lower end of the plate body 99 is arrange|positioned higher than the lower end of the seedling loading part 11a of the left and right seedling loading platforms 11, and is rearward, and it becomes the structure which does not interfere with the seedling support plate 27.

Seedling planting device 10 is installed in the bottom of planting transmission box 7, is the crank type by the power action from this planting transmission box 7, and separation claw 31 scrapes off and gets the seedling on the seedling mouth 28, and push-out member 32 will scrape the seedling The seedlings are planted in the field by pushing out toward the field side.

Moreover, on the left and right outer sides of the seedling support plate 27, each right and left seedling support plate protection frame 105 which protects the seedling support plate 27 is provided. The seedling support plate protection frame 105 is bent in a U-shape when viewed from above. And the left and right ends of the left and right seedling support plate protection frames 105 become the left and right outermost ends of the body. Moreover, in order to narrow the left-right width of a body, you may make it the structure which does not assemble the seedling support plate protection frame 105 on either side.

The transmission structure in the planting transmission box 7 is described, and it is transmitted to the bevel gear 107 through the safety clutch 106 on the planting transmission shaft 15 . The safety clutch 106 is a clutch that disconnects transmission due to overload, and is configured to adjust the load when the clutch is disconnected by adjusting the spring load of the clutch. Transmission to the power transmission shaft 108 extending in the left-right direction via the bevel gear 107, from the power transmission shaft 108 through a plurality of sets (three sets of planting drive sprockets 109, planting chains 110 and planting driven sprockets 111) for planting. Parts 112 are transmitted to each planting device drive shaft 119, and are transmitted to a plurality of seedling planting devices 10. Through a plurality of planting transmission parts 112, the planting device drive shaft 119 in the left and right center and the corresponding center planting device drive shaft 112 Two rows of seedling planting devices 10 in the center of the left and right are transmitted to each row of seedlings in the left and right outermost sides through the transmission parts 112 for planting on the outermost sides in the plurality of transmission parts 112 for planting and the planting device drive shafts 119 on the corresponding left and right sides. Planting device 10 transmission.In addition, from transmission shaft 108 via many pairs (two pairs) left and right moving with driving gear 113 and left and right moving with driven gear 114 constituted left and right moving with transmission member 115 to the left and right that makes seedling-carrying platform 11 move left and right. Moving mechanism 116 transmission.In addition, left and right movement is with the transmission member 115 and becomes from the many pairs of gear sets that are made up of many pairs (two pairs) left and right movement with drive gear 113 and left and right movement with driven gear 114 and selects the gear that transmits one by one. group, and can switch the structure of the transmission ratio.The left and right movement mechanism 116 is provided with: by the power drive from the transmission member 115 for the left and right movement (with the driven gear 114 for the left and right movement integrally rotated) the lead cam extending in the left and right direction shaft 117; and the lead cam 118 that moves left and right by the rotation of the lead cam shaft 117. And, the left and right moving shaft 29 that moves left and right integrally with the lead cam 118 is provided. The lead cam shaft 117 is a well-known The structure has the length equivalent to the narrow planting row spacing 25cm, so that the seedling-carrying platform 11 moves left and right correspondingly with the left-right width of the seedling-carrying portion 11a. The left and right ends of the left and right moving shaft 29 are planted to the left and right of the transmission box 7. The outer side protrudes, and is connected with the seedling loading platform 11 through the connecting member 30. Therefore, it becomes a structure in which the seedling loading platform 11 and the left and right moving shaft 29 reciprocate left and right together with the left and right movement of the left and right moving shaft 29. The seedling conveying drive shaft of each row of seedling conveying belt 35 transmissions of camshaft 117 integrated rotation structure.

And, the planting transmission shaft 15 is arranged on the right side of the planting transmission part 112 in the left and right center, and the left and right moving transmission part 115 is arranged on the left side of the planting transmission part 112 in the left and right center. Furthermore, the planting transmission shaft 15 and the horizontal movement transmission member 115 are arranged at positions in the left-right direction of the planting transmission member 112 closest to the left-right center among the plurality of planting transmission members 112 . Therefore, the planting transmission shaft 15 and the transmission member 115 for horizontal movement are separately arrange|positioned at the left and right of the transmission member 112 for planting in the left-right center. In addition, the distance in the left-right direction between the center planting transmission member 112 and the planting transmission shaft 15 is smaller than the distance in the left-right direction between the left-right center planting transmission member 112 and the left-right movement transmission member 115 .

The planting transmission box 7 is provided with: a main housing part 120 for accommodating the left and right central part of the transmission shaft 108, the transmission member 115 for the left and right movement, the left and right moving mechanism 116, etc.; The sub-housing part 121; the left and right central extension casing parts 122 extending from the lower end of the left and right central sub-housing parts 121 to the left and right outer sides; the left and right side extension casings extending from the lower part of the main casing part 120 to the left and right outer sides The body part 123; and the side sub-case part 124 extending from the left and right side extension case parts 123 to become the left and right outer sides of the body to the obliquely front lower side. The central sub-housing part 121 accommodates the left and right central planting transmission members 112 and the left and right central parts of the planting device drive shaft 119 in the left and right centers. The planting device driving shaft 119 in the left and right center protrudes left and right from the lower end of the central auxiliary housing part 121 through the central extension housing part 122 on the left and right, and each seedling planting device 10 is assembled on the left and right at the left and right protruding parts of the planting device driving shaft 119. Therefore, by the left and right central extension housing parts 122 and the planting device drive shaft 119 part accommodated in the central extension housing part 122, two rows of power transmission parts 112 for planting in the left and right centers to the left and right centers extending in the left and right are constituted. The left and right extension transmission parts of the seedling planting device 10 transmission. The propeller shaft 108 extending left and right from the lower end of the main case part 120 is accommodated in each of the left and right side extension case parts 123 . In addition, the propeller shaft 108 has a long left and right structure extending from the main case part 120 to the left and right sides of the case part 123 , and therefore has a structure that can be divided corresponding to each case part. The left and right side sub-housing parts 124 house the respective left and right outer planting transmission members 112 and one ends of the respective left and right outer planting device drive shafts 119 . The left and right outer planting device drive shafts 119 protrude from the lower end of the side sub-housing part 124 to the left and right direction inside of the body, and the seedling planting device 10 is assembled on the protruding parts of the planting device drive shafts 119 .

And the main housing part 120 is accommodated in the left-right width of the wide 50-cm planting row spacing in the left-right inner side of the seedling planting apparatus 10 in the left-right center. Therefore, the left and right movement transmission member 115 composed of the drive gear 113 for the left and right movement and the driven gear 114 for the left and right movement, and the left and right movement mechanism 116 composed of the lead cam shaft 117 and the lead cam 118 are accommodated in the left and right center. The left and right inner sides of the planting device 10, that is, the structure in the left and right widths of the wide 50cm planting row spacing. Thus, when performing maintenance such as replacement and repair of the left-right movement mechanism 116 and the left-right movement transmission member 115, the opening and closing cover on the upper part of the main casing part 120 is opened and removed, and the main casing part is easily carried out from above. Maintenance within 120. In addition, when performing maintenance such as replacement and repair of the seedling planting apparatus 10, since all the seedling planting apparatuses 10 are disposed outside the main casing portion 120 in the left-right direction, the main casing portion 120 does not become an obstacle. Maintenance of the seedling planting device 10 is easy to perform from above.

In addition, the structure is such that the left and right central seedling planting devices 10 can be arranged on the left and right sides of the body by removing the left and right central extension housing parts 122 and replacing the left and right central planting device drive shafts 119 with short shafts. direction inside, and set the planting row spacing in the left and right center to the narrow planting row spacing of 30cm. In addition, instead of replacing the left and right center planter drive shafts 119, the left and right ends of the left and right center planter drive shafts 119 may be divided to shorten the planter drive shafts 119. In addition, it becomes the following structure, that is, by replacing the left and right side sub-case parts 124 and the propeller shaft 108 part corresponding to the side part case part 124 with a member with a short length in the left-right direction, so that the left and right center The arrangement pitch in the left-right direction of the seedling planting device 10 and the seedling planting device 10 adjacent to the left and right outside of the seedling planting device 10 is 30 cm, and the entire planting row spacing of the body can be set to the same planting row spacing of 30 cm.

On the front side of the operating handle 9 and the rear side of the seedling-carrying platform 11, it is set: the main clutch lever 36 that can cut off the transmission to the wheels 5, the seedling planting device 10 and the seedling-carrying platform 11; The transmission of the seedling platform 11, or the planting lift rod 37 that switches the oil passage of the hydraulic valve unit in order to make the hydraulic lift cylinder 16 work. The main clutch lever 36 is configured to be operable to two operating positions of an on position and an off position, and operates the main clutch in the main transmission case 3 to switch between a transmission state and a non-transmission state. The above-mentioned planting lifting lever 37 is a structure that can be operated to the four operating positions of the planting position, the descending position, the neutral position and the rising position, and the planting clutch in the main transmission box 3 is operated to switch the planting drive shaft 15 to the driving state and In the non-driving state, the hydraulic lift cylinder 16 is operated to move the left and right wheels 5 up and down. That is, if the above-mentioned planting position is operated, the planting clutch will be in the transmission state to make the seedling planting device 10 and the seedling loading platform 11 work, and the wheels 5 on the left and right are subject to ground load due to the dead weight of the body, thereby making the hydraulic lifting cylinder 16 The hydraulic pressure in the main transmission case 3 returns to the left and right wheels 5 to move upwards, the body is lowered and the floating body 12 becomes a grounded state. If operated to above-mentioned descending position, then as mentioned above, under the state that body is descended, planting clutch is made to be in non-transmission state and the work of seedling planting device 10 and seedling-loading platform 11 is stopped. If it is operated to the above-mentioned neutral position, as described above, in the state where the operation of the seedling planting device 10 and the seedling loading platform 11 is stopped, the oil passage to the hydraulic lifting cylinder 16 is disconnected and the operation of the hydraulic lifting cylinder 16 is fixed. The left and right wheels 5 are fixed at any up and down positions and the lifting of the body is stopped. If it is operated to the above-mentioned rising position, as described above, in the state where the operation of the seedling planting device 10 and the seedling loading platform 11 is stopped, hydraulic pressure is supplied to the hydraulic lifting cylinder 16 to move the left and right wheels 5 downward, and the machine body Ascent, the floating body 12 becomes a non-grounded state. Moreover, it becomes a structure in which the oil path of the hydraulic valve unit is switched through the rod connected to the front of the central floating body 12a through the up and down movement of the central floating body 12a, and when the front part of the central floating body 12a moves upward, it becomes a hydraulic lift. Hydraulic pressure is supplied to the cylinder 16 to move the left and right wheels 5 downward. Therefore, when the planting lifting rod 37 is in the planting position and the lowering position, the central floating body 12a moves up and down in contact with the field surface, so that the left and right wheels 5 move up and down so that the central floating body 12a moves up and down. The floating body 12a becomes a desired front and rear posture, and the body reaches a predetermined height above the ground.

On the front side of the operating handle 9 and the seedling loading platform 11 , a shift lever 38 for operating a shift unit in the main transmission case 3 and a recoil knob 39 for starting the engine 2 are provided. In addition, the engine 2 and the recoil knob 39 at the front end of the machine body are connected by a recoil rope 40 . Left and right side clutch levers 41 are provided below the left and right handle grips 9 a of the operating handle 9 , and the left and right side clutches 61 in the main transmission case 3 are operated by the side clutch levers 41 . A planting depth adjustment lever 42 is provided on the oblique front lower side of the operating handle 9 and on the left side of the rear frame 8, and the operation of the planting depth adjustment lever 42 makes the planting in the left and right direction integrally rotated with the planting depth adjustment lever 42. The depth adjustment shaft 53 rotates, and changes the rotation fulcrum shaft 13 of each floating body 12 relative to the up and down position of the body through each planting depth adjustment arm 54 that is integrally rotated with the planting depth adjustment shaft 53, so that the planting of the seedlings of the seedling planting device 10 can be performed. A structure for changing adjustments in depth. In addition, the rotation fulcrum shaft 13 is welded and fastened to the planting depth adjustment arm 54 . On the obliquely front lower side of the operating handle 9 and on the right side of the rear frame 8, a seedling amount adjustment lever 65 is provided, and the vertical position of the seedling support plate 27 relative to the seedling planting device 10 can be changed by the operation of the seedling amount adjustment lever 65. The position is a structure capable of changing and adjusting the amount of seedlings taken per plant of the seedling planting device 10 .

A hood 43 is provided above the engine 2 and the main transmission case 3 . In addition, a fuel tank 44 is provided above the engine 2 .

At the position above the front part from the upper part of the rear part of the hood 43 to the upper position of the planting transmission case 7, the spare seedling loading stand 45 which mounts the spare seedling is provided. This stand-by seedling loading platform 45 is comprised by the frame body which combined rod material, and is fixedly supported by the stand-by seedling loading platform support frame 46. Therefore, it becomes the structure which the stand-by seedling loading stand 45 does not move back and forth. Standing parts 47 are provided in the four sides of the stand-by seedling loading platform 45, front, rear, left and right, and the seedlings carried will not fall off by the standing parts 47. The stand-by seedling-carrying platform 45 is constituted as a front-to-back width of about 60 cm and a left-right width of about 120 cm, so that four mat-shaped seedlings that the long side direction is about 60 cm and the short side direction are about 30 cm can be placed. Therefore, the stand-by seedling loading stand 45 can arrange four sheets of mat-shaped seedlings so that the longitudinal direction faces the front-back direction, and can mount them. Moreover, in order to carry a seedling easily, a seedling may be handled in the state which rolled up the rolling seedling of a mat-shaped seedling, and this rolling seedling can also be placed on the stand-by seedling loading stand 45. At this time, since the square standing part 47 is set relatively high, it can prevent that the roll seedling placed on the stand-by seedling loading platform 45 rolls and falls. Moreover, the spare seedling loading stand 45 is arrange|positioned above each axle|axle 14 of the wheel 5 which is left and right when viewed from a side, and the axle 14 is set in the same front-back position as the front-back center of the spare seedling loading stand 45.

The above-mentioned stand-by supporting frame 46 for seedling loading is arranged between the machine cover 43 and the planting transmission box 7 (planting part). The hood support member 50 extended obliquely forward and upward in order to support the rear part of the hood 43 is fastened to the fixing member 49 which fixes the spare seedling loading stand support frame 46 of the main frame 6. As shown in FIG. Thereby, the supporting strength of the hood support member 50 is improved, and the hood 43 can be reliably and firmly supported. In addition, even if the hood supporting member 50 is supported by the main frame 6 without the above-mentioned fixing member 49, as long as the hood supporting member 50 is supported near the fixing member 49, the hood can be improved. The supporting strength of the supporting member 50. In addition, as long as the hood support member 50 is supported by the spare seedling loading platform support frame 46, the support strength of the hood support member 50 can be improved, and the hood support member 50 can be shortened to reduce the size and weight. and cost reduction.

The front portion of the body is provided with a protective frame 51 for protecting the engine 2, the main transmission case 3, the machine cover 43, etc., so as not to be affected by obstacles in front of the body. The guard frame 51 includes left and right mounting portions 51 a extending forward from the left and right side surfaces of the main transmission case 3 , and a guard portion 51 b serving as a body front end connecting the left and right mounting portions 51 a. The guard portion 51b is formed in a horizontal shape extending straight to the left and right.

When the body is loaded into the compartment of the truck and fixed, the ropes are respectively hung on the left and right ends of the left and right central parts of the above-mentioned protective part 51b, and the ropes are hung on the hooks 52 fastened to the upper part of the rear frame 8, and fixed. The three parts of the body are firmly fixed on the carriage.

In this walking type rice transplanter 1, the operator holds the left and right handle handles 9a of the operating handle 9, operates the planting lifting lever 37 to the planting position, lowers the machine body, and makes the planting part in a workable state, and turns the main clutch lever to the planting position. 36 is operated to the ON position, and the planting part is operated while the body is driven, thereby simultaneously planting four rows of seedlings in the farmland. When arriving at the head of the farmland, the planting lifting lever 37 is operated to the rising position, the work of the planting part is stopped and the body is raised, and the side clutch lever 41 on the inside of the rotation is operated to disconnect the side clutch of the wheel 5 on the inside of the rotation. 61, the body is turned around. When the body was turned around, the body was raised by operating the planting lifting rod 37 to the rising position. At this height, the operator can easily perform the turning operation of the machine body. Hereinafter, similarly, the planting elevating lever 37 is operated to the planting position, and the planting operation of one stroke is carried out, and the seedlings are planted in the farmland. Also, when traveling on the road, etc., the body is raised, and the shift lever 38 is appropriately operated to travel.

In the above, the configuration using the compression spring 22 as the first urging means has been described, but instead of the compression spring 22, a rolling suppressing plate spring or a rebound spring may be provided.

In addition, a configuration may be adopted in which expansion and contraction parts are respectively provided on the left and right in the middle of the left and right connecting rods 20, and a second urging device for urging the expansion and contraction is provided in the expansion and contraction parts. The telescopic part is constituted by a spring case that slides the front and rear rod parts of the connecting rod 20 to each other, and is configured to expand and contract according to the ground load of the wheel 5 by a compression spring for expansion and contraction provided inside the spring case. In addition, the load of the compression spring for expansion and contraction of the contraction of the expansion and contraction part is set to the same amount as the contraction amount of the above-mentioned expansion and contraction part, and is smaller than the load of the first urging means (such as the compression spring 22) when the connecting rod 20 is moved back and forth. . Therefore, through the rapid expansion and contraction of the telescopic part, the left and right wheels 5 can be independently moved up and down corresponding to the local unevenness of the farmland, and the machine body can be prevented from tilting left and right due to the local unevenness of the farmland. In addition, instead of the spring case, the expansion and contraction portion may be constituted by a hydraulic type or an air type damper. Thereby, since the shock can be efficiently absorbed, the durability of the expansion-contraction part also improves. In addition, when the telescoping portion is constituted by a damper, by providing a hydraulic or air flow regulating valve of the damper, the speed adjustment of the vertical motion of the wheel 5 (adjustment of follow-up responsiveness to the farmland) can be performed, depending on the conditions of the farmland. Correspondingly good driving performance is obtained.

In addition, as a different structure, it is also possible to have a structure in which a telescopic driver is provided on the left and right connecting rod 20, a rolling drive device 87 is provided to make the vertical positions of the left and right wheels 5 forcibly different, and a detection body is provided. The vibrator 88 of the left-right inclination posture controls the roll drive device 87 based on the movement of the vibrator 88 so that the left-right inclination posture of the body becomes a desired posture. In this case, it is configured so that vibrator 88 does not swing left and right and roll drive device 87 is not activated when the machine body shakes due to uneven farmland or the like during roll control of the machine body. If the vibrator 88 is fixed by raising the friction plate 89 such as a rubber plate from the lower side to contact the bottom surface of the vibrator 88, the vibration can be fixed even when the vibrator 88 swings slightly to the left and right. The fixing of the vibrator 88 and the vibrator 88 becomes easy. Conventionally, since the vibrator is fixed by inserting a fixing pin or the like into the vibrator, it is necessary to align the vibrator with the fixing position and then insert the fixing pin, and fixing the vibrator is also difficult.

In addition, in the said structure, the left-right space|interval between the left and right seedling loading platforms 11 is set to the same width as the left-right width of the seedling loading part 11a (one time width of the left-right width of the seedling loading part 11a), and An example in which the planting row spacing in the left and right center is set to 50 cm, and the planting row spacing in the left and right sides is set to 25 cm, but for example, the left and right intervals between the left and right seedling loading platforms 11 may be set to the left and right width of the seedling loading part 11a. double the width, the planting row spacing in the center of the left and right is set to 75cm, the planting row spacing in the left and right sides is set to 25cm, etc., the left and right spacing between the left and right seedling-carrying platforms 11 is set to the left and right of the seedling-carrying part 11a The multiple width of width, the planting row spacing of left and right center is set as more than three times of the planting row spacing of left and right sides. Thereby, the planting row spacing in the center can be sufficiently widened.

Claims (6)

1. a seeding transplant machine, is characterized in that,

With different plantation line-spacings, in left and right, arrange a plurality of seedling cultivation devices (10), in left and right, arrange smooth a plurality of buoyancy aids are carried out in the plantation position of the seedling cultivation device (10) of each row, make by a buoyancy aid and carry out smooth structure to forming the plantation position of left and right of the plantation line-spacing of wide cut.

2. seeding transplant machine according to claim 1, is characterized in that,

In left and right central authorities, form the plantation line-spacing of wide cut.

3. seeding transplant machine according to claim 2, is characterized in that,

The driving body (5) of left and right is positioned at the plantation line-spacing in a narrow margin that does not configure buoyancy aid.

4. seeding transplant machine according to claim 1 and 2, is characterized in that,

In an above-mentioned buoyancy aid, in the mode that can load and unload, form the smooth whole ground parts (92) of respectively planting are carried out in the plantation position of left and right.

5. seeding transplant machine according to claim 1 and 2, is characterized in that,

In an above-mentioned buoyancy aid, in outstanding to the left and right mode, arrange the smooth whole ground parts (92) of respectively planting are carried out in the plantation position of left and right, in the left and right of the plantation position adjacency with above-mentioned left and right, each plantation line-spacing in a narrow margin arranges driving body (5).

6. seeding transplant machine according to claim 1 and 2, is characterized in that,

The structure of four lines plantation of making the plantation position of each a line amount of left and right that adjacency is set in the left and right of the plantation position of the smooth left and right two row amounts of an above-mentioned buoyancy aid, arranges each side buoyancy aid (12b) of smooth left and right is carried out in the plantation position of above-mentioned a line amount.

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