JP2017093306A5 - - Google Patents

Description

Seedling transplanter

  The present invention relates to a seedling transplanting machine in which a planting device for planting seedlings in a field is connected to the rear part of a vehicle body, and belongs to the technical field of agricultural machinery.

  2. Description of the Related Art Conventionally, a seedling transplanting machine is known that includes a planting device at the rear part of a traveling vehicle body and is provided with a fertilizer application device that performs fertilization work together with planting work by the planting device (see, for example, Patent Document 1).

  The seedling transplanter shown in Patent Document 1 is provided with fertilizers on both the left and right sides of the rear part of the traveling vehicle body, and a fertilizer hose is connected to the lower part of the feeding device that feeds the fertilizer downward by a set amount. It is the structure which supplies a fertilizer to the vicinity of the planting position of a seedling from a part.

  As a result, a space is formed between the fertilizer arranged on the left and right in the rear part of the traveling vehicle body, so that the operator can easily approach the planting device when replenishing seedlings from the traveling vehicle body to the planting device. , Work efficiency is improved. In addition, a place where an operator other than the operator of the traveling vehicle body can wait is secured, and the seedling loading space is widened, so the frequency of replenishing seedlings from outside the field is reduced, and work efficiency is further improved. To do.

Japanese Patent Laying-Open No. 2015-163057

  However, according to the conventional fertilizer, the fertilizer discharge port of the feeding device is at the lower part of the feeding device, so that the fertilizer hose must be bent toward the outside of the machine body and bent backward, so The fertilizer hose does not fit. Therefore, at the time of maintenance of the fertilizer, there is a problem that an operator needs to adjust the bending method of the fertilizer hose at a plurality of locations in a narrow space below the fertilizer, which takes time.

  An object of this invention is to provide the seedling transplanting machine which can improve the maintainability of a fertilizer application apparatus in view of the subject of the said conventional seedling transplanting machine.

In order to solve the above problems, the present invention according to claim 1, fertilizing device provided on the right and left sides of the run line body (2) (101L, 102L, 103L, 101R, 102R, 103R) and the left and right fertilizing device (100L, 100R) fertilization hose supplying fertilizer fed from the field (141L, 142L, 143L, 141R , 142R, 143R) in the seedling transplantation machine provided with a left and right of the fertilizer apparatus (101L, 102L, 103L, 101R, 102R, 103R) is configured by a fertilizer hopper (110) for storing fertilizer and a plurality of feeding devices (120) for feeding the fertilizer supplied from the fertilizer hopper (110), and a plurality of the feeding devices (120). a) each of fertilization joint (130L fertilizer passes, 130R) via said fertilization hose (141L, 142 , 143L, 141R, 142R, respectively connecting the 143R), a plurality of the fertilization joint (130L, the 130R), in plan view, that the formation of the bent portion toward the front or rear of the vehicle body (2) It is a seedling transplanting machine.

Further, the present invention according to claim 2, wherein the fertilization device (101L, 102L, 103L, 101R , 102R, 103R) are arranged side by side a plurality later direction before the left and right sides of the vehicle body (2), Each of the bent portions of the plurality of fertilization joints (130L, 130R) is bent toward the rear of the traveling vehicle body (2), and each of the plurality of fertilization joints (130L, 130R) attached to the plurality of fertilization joints (130L, 130R). Fertilizer hoses (141L, 142L, 143L, 141R, 142R, 143R) are bent inward from the left and right sides of the traveling vehicle body behind the fertilizer (103L, 103R) arranged in the last row in plan view. is, are arranged to be bent further towards the rear, the fertilization hose (141L, 142L, 143L, 141R , 142R, 143 Flexion location that is bent toward the rear of), the front and rear multiple fertilization devices arranged in a direction (101L, 102L, 103L, 101R , 102R, 103R) of the fertilizer, which is disposed more on the front side The fertilization hose (143L) connected to the fertilizer application (103L, 103R) arranged at the rear side of the fertilization hose (141L, 141R) connected to the device (101L, 101R). , than the bending position of the 143R), in plan view, in seedling transplantation machine as set forth in claim 1, characterized in that positioned outside the reference to the central position of the lateral width direction of the vehicle body (2) is there.

Moreover, this invention of Claim 3 is provided with the side part hose guide (180) which fixes the said fertilization hose (141L, 142L, 143L, 141R, 142R, 143R) to the both right and left sides of the said traveling vehicle body (2). The side hose guide (180) is disposed at a connection position between the fertilization joint (130L, 130R) and the fertilization hose (141L, 142L, 143L, 141R, 142R, 143R) or downstream of the connection position. a seedling transplantation machine according to claim 2, characterized in that it is.

Moreover, this invention of Claim 4 is equipped with the rear hose guide (180) which fixes the said fertilization hose (141L, 142L, 143L, 141R, 142R, 143R ) to the rear part side of the said traveling vehicle body (2), The rear hose guide (180) is arranged on the upstream side of the bent position bent toward the rear of the fertilizer hose (141L, 142L, 143L, 141R, 142R, 143R). The seedling transplanter according to claim 3.

Further, the present invention according to claim 5 is provided with ventilation ducts (150L, 150R) for guiding the conveying wind for conveying fertilizer to the left and right fertilization hoses (141L, 142L, 143L, 141R, 142R, 143R), respectively. left and right of the air duct (150L, 150R) are connected by a connection duct (160), the preceding claims, characterized in that it comprises a mounting stay (210) for supporting a portion extending horizontal direction of the machine body of the fertilizer hose 4 The seedling transplanting machine according to any one of the above.

Further, the invention of claim 6, wherein the left and right of the fertilizer apparatus (101L, 102L, 103L, 101R , 102R, 103R) horizontal direction of the machine body inside railing (105L, 105R) each provided with a left and right of the handrail The left and right ends (190L, 190R) of the protective member (190) that protects the connecting duct (160) are connected to the (105L, 105R), and the protective member (190) is located above the connecting duct (160). The seedling transplanting machine according to claim 5 , wherein the seedling transplanting machine is arranged .

According to the present invention described in claim 1, fertilization joint for connecting a fertilizer hose and feeding device (120) (130L, 130R) by a, is bent to the front or rear of the vehicle body (2), wear There is no need to adjust the way the fertilizer hose is bent during removal, improving maintainability.

Furthermore, fertilization joint (130R, 130L), and it is possible to pull out towards the outside of the vehicle body (2), can be easily removed without the need to remove the peripheral member, maintainability is further improved.

According to the present invention described in claim 2, in addition to the effect of the present invention described in claim 1, the fertilizer hoses (141L, 142L, 143L, 141R, 142R, 143R) are arranged on the rearmost side. The bend radius of the fertilizer hose can be made gentle by bending the traveling fertilizer hopper (110) to the inner side of the traveling vehicle body (2). The amount is stabilized.

  Moreover, toward the back of the fertilization hose connected with the feeding device (120) of the fertilizer applicator arranged in the front side among the plural fertilizer applicators arranged in the front-rear direction on both the left and right sides of the traveling vehicle body (2) The bent position is bent in the plan view, compared with the bent position bent toward the rear of the fertilizer hose connected to the feeding device (120) of the fertilizer applied at the rear side, Since the distance from the feeding device (120) to the fertilizer discharge position can be reduced by being located on the outer side with respect to the center position in the left-right width direction of the traveling vehicle body (2), the fertilizer can be used in the field. It is possible to prevent the timing to be supplied from being varied, and the fertilization accuracy is improved.

Moreover, since it becomes possible to eliminate the difference in length of the fertilizer hoses (141L, 142L, 143L, 141R, 142R, 143R) , fertilizer hoses having different lengths are not required, and members can be shared.

Moreover, according to this invention of Claim 3, in addition to the effect of this invention of the said Claim 2, side part hose guide (180) is made into fertilization joint (130L, 130R) and fertilization hose (141L, 142L, 143L, 141R, 142R, 143R) by placing the fertilizer joint (130L, 130R) and fertilizer hose (141L, 142L, 143L, 141R, 142R, 143R) in an easy-to-understand manner Since it is possible to easily arrange the fertilization hoses (141L, 142L, 143L, 141R, 142R, 143R) that do not hinder the supply of the fertilizer, the amount of fertilization can be stabilized and the maintainability can be improved.

Moreover, according to this invention of Claim 4, in addition to the effect of this invention of the said Claim 3, a rear part hose guide (180) is used for fertilization hose (141L, 142L, 143L, 141R, 142R, by disposing on the upstream side of the bending position rearward 143R), each fertilization hoses (141L, 142L, 143L, 141R , 142R, it is possible to prevent the change in bend radius of 143R), fertilizer for each row It is prevented that the supply timing varies and the supply amount of fertilizer becomes unstable, and the accuracy of fertilization is improved.

Moreover, according to this invention of Claim 5, in addition to the effect of this invention of any one of the said Claim 1 to 4 , fertilization hose (141L, 142L, 143L) with an attachment stay (210) , 141R, 142R, 143R) can be supported in the left-right direction .

Moreover, according to this invention of Claim 6, in addition to the effect of this invention of the said Claim 5 , by providing the protection member (190) above a connection duct (160), it is connected. Since it is possible to prevent the duct (160) from being stepped on, the connecting duct (160) is prevented from being deformed to change the flow of the conveying wind, the fertilizer supply timing and the fertilizer supply amount are stabilized, and the fertilization accuracy is improved. .

The side view of the riding rice transplanter which is an example of the seedling transplanter in embodiment of this invention The top view of the riding rice transplanter which is an example of the seedling transplanter in embodiment of this invention The left view of the fertilization mechanism of the riding rice transplanter of embodiment of this invention Schematic partial cross-sectional view of the right most front fertilizing device constituting the right fertilizing device group of the riding rice transplanter of the embodiment of the present invention The schematic which looked at the fertilization mechanism of an embodiment of the invention from the back of a riding rice transplanter It is the schematic which shows the structure which provided the guard pipe and the member relevant to it as a modification of the fertilization mechanism of embodiment of this invention, and is the schematic sectional drawing which looked at the connection duct from the left side surface of the riding rice transplanter The figure which looked at the modification of the fertilizer application mechanism shown in Drawing 6 from the back of riding rice transplanter (A): Schematic left side schematic view showing the interior of the engine cover of the riding rice transplanter in the embodiment of the present invention, (b): An improved configuration example of the intake cover shown in FIG. Schematic diagram of the left side (A): Partial sectional view of auxiliary transmission portion of riding rice transplanter in embodiment of the present invention, (b): Shifter shaft shown in FIG. 9 (a) and enlarged view of its periphery (A): The figure which shows the state before attaching the extension pipe for turbulent flow generation for exhaust sound improvement to the muffler tail pipe of the riding rice transplanter of this Embodiment, (b): In FIG. 10 (a) The figure which shows the state where the extension pipe for generating the turbulent flow is attached to the muffler tail pipe which shows (A): Plan view of steering gear of riding rice transplanter in this embodiment, (b): Side view of steering gear of FIG. 11 (a) viewed along arrow X, (c): FIG. 11 (a). ) QQ section arrow view The figure which shows the mating surface of the transmission case in the passenger rice transplanter of embodiment of this invention (A): Schematic diagram of a transverse cross section of a transmission case when the riding rice transplanter of the embodiment of the present invention is viewed from the front, (b): Right side view of the suction hose guide 460

  A riding rice transplanter according to an embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a side view of a riding rice transplanter 1 according to the present embodiment. FIG. 2 is a plan view of the riding rice transplanter 1 according to the present embodiment. In addition, illustration of the planting apparatus was abbreviate | omitted in FIG.

  In the following description, the front / rear / left / right direction reference defines the front / rear, left / right reference with respect to the traveling direction of the vehicle body as viewed from the cockpit.

  As shown in FIGS. 1 and 2, the traveling vehicle body 2 of the passenger rice transplanter 1 according to the present embodiment is a four-wheel drive vehicle including a pair of left and right front wheels 5 and a pair of left and right rear wheels 10. A planting device 60 that can be moved up and down by a planting device lifting mechanism 70 is provided at the rear of the traveling vehicle body 2.

  The planting device lifting mechanism 70 has a pair of left and right lifting link devices 71 composed of an upper link member 73 and a lower link member 74, and the planting device 60 travels through the lifting link device 71. It is attached to the vehicle body 2.

  The planting device 60 includes a seedling planting unit 61, a seedling placement table 65, a float 80, and the like.

  The seedling planting unit 61 is a device for planting the seedlings placed on the seedling placing table 65 in the field, and is provided for every two strips, and is provided with two stumps 62. . The planting basket 62 is configured to take a seedling from the seedling placing table 65 and plant it for each strip.

  The riding rice transplanter 1 according to the present embodiment is a six-planted rice transplanter including three seedling planting portions 61. In addition, the seedling planting part 61 may be increased to be 8-row planting, 10-row planting, or may be decreased to 4-row planting. Furthermore, the seedling planting part 61 may be configured by providing only one of the right and left planting ridges 62, and can be configured as a seven-row planting or a five-row planting.

  Moreover, the float 80 is arrange | positioned by the lower part of the seedling mounting stand 65, and it is provided so that it can level the ground by sliding on the field scene and leveling with the movement of the traveling vehicle body 2. FIG. The float 80 includes a main float 81 disposed at a central portion in the left-right width direction of the fuselage, a right side float 82R and a left side float 82L disposed on both left and right sides of the main float 81.

  In addition, the traveling vehicle body 2 includes a main frame 3 that forms a skeleton of the vehicle body, an engine 20 mounted on the main frame 3, driving power (front wheels 5 and rear wheels 10) generated by the engine 20, and a fertilizer mechanism. 100 and the power transmission apparatus 25 which transmits to the planting apparatus 60 are provided. The engine 20 is a heat engine such as a diesel engine or a gasoline engine.

  In addition, the engine 20 is disposed at a substantially central position in the left-right direction of the traveling vehicle body 2 and protruding upward from a floor step 40 that is a boarding step of the aircraft.

  The floor step 40 includes a main step 41 located in the center of the body in the left-right direction, and side steps 42 located on both the left and right sides of the main step 41. Further, the floor step 40 has a mesh shape so that mud attached to the shoes can be dropped onto the field. In addition, the grid-shaped through holes provided in the left and right front portions of the floor step 40 allow the operator who is seated on the cockpit 55 and steers the aircraft to view the pair of left and right front wheels 5 and is easy to steer. .

  In addition, on both sides of the floor step 40 in the left-right direction, a boarding / alighting step 45 for placing an operator's foot when getting on / off the floor step 40 is provided.

  Further, a rear step 47 that is a rear step that also serves as a fender of the rear wheel 10 is provided behind the floor step 40. The rear step 47 is disposed at a position higher than the floor step 40 and is disposed from the left and right sides of the engine 20 to the rear.

  Note that fertilizer mechanisms 100 are provided on the left and right ends of the rear step 47. The fertilizer application mechanism 100 will be further described later.

  The engine 20 protrudes upward from the floor step 40 and the rear step 47, and an engine cover 21 that covers the engine 20 is disposed in a portion protruding from these steps.

  Further, the traveling vehicle body 2 is provided with a cockpit 55 at the top of the engine cover 21, and a steering unit 50 is disposed in front of the cockpit 55 and at the front center of the traveling vehicle body 2. Yes. The control unit 50 is disposed in a state of protruding upward from the floor surface of the floor step 40.

  Various operating devices, a fuel tank for engine fuel, and the like are disposed inside the control unit 50, and a front cover 51 that can be opened and closed is provided at the front of the control unit 50. In addition, an operation lever or the like for operating the operation device, instruments, and a handle 52 for steering the front wheel 5 are disposed on the upper portion of the control unit 50. Moreover, as a lever, the planting which can switch the operating state of the shifting lever which operates the forward / backward advance and traveling speed of the traveling vehicle body 2, and the planting device 60 at least including the raised state by the planting device lifting mechanism 70. An elevating lever is provided.

  Further, on both the left and right sides of the front side of the traveling vehicle body 2, preliminary seedling frames 90 on which supplementary seedlings are placed are disposed. The preliminary seedling frame 90 is supported by a support shaft 91 protruding from the floor surface of the floor step 40.

  In addition, a battery 95 that stores electricity used in each electrical device of the riding rice transplanter 1 is disposed below the reserve seedling frame 90 disposed in this manner.

  In addition, the power transmission device 25 includes a hydraulic continuously variable transmission (HST) 26 as a main transmission for shifting the power generated by the engine 20, and the engine 20 to the hydraulic continuously variable transmission 26. A belt-type power transmission mechanism (not shown) that transmits power from the motor. The hydraulic continuously variable transmission 26 generates hydraulic pressure by a hydraulic pump (not shown) driven by power from the engine 20, and converts the hydraulic pressure to mechanical force (rotational force) by a hydraulic motor (not shown). Output.

  The traveling vehicle body 2 of the present embodiment corresponds to an example of the traveling vehicle body of the present invention. Moreover, the planting apparatus 60 of this Embodiment corresponds to an example of the planting apparatus of this invention.

  Next, it demonstrates mainly using FIGS. 1-5 centering around the structure of the fertilization mechanism 100 in the riding rice transplanter 1 of this Embodiment.

  FIG. 3 is a left side view of the fertilizing mechanism 100.

  FIG. 4 is a schematic partial cross-sectional view of the right most front fertilizing device 101R constituting the right fertilizing device group 100R, and is a view of the fertilizing device arranged on the right side of the traveling vehicle body 2 as viewed from the front of the riding rice transplanter 1. It is. FIG. 5 is a schematic view of the fertilizing mechanism 100 as viewed from the back of the riding rice transplanter 1.

  In the riding rice transplanter 1 of the present embodiment, as shown in FIGS. 1 and 2, fertilizer mechanisms 100 that supply granular fertilizer to the farm are arranged on the left and right sides of the rear step 47 of the traveling vehicle body 2.

  That is, the fertilizing mechanism 100 of the present embodiment includes (1) a left fertilizer application group 100L arranged on the left side of the rear step 47, and (2) a right fertilizer application group 100R arranged on the right side of the rear step 47, (3) Left fertilizer hose group 140L composed of three left fertilizer hoses (see reference numerals 141L to 143L in FIG. 2) for guiding fertilizers fed from three fertilizers constituting left fertilizer applicator group 100L, and ( 4) Right-side fertilization hose group 140R composed of three right-side fertilization hoses (see reference numerals 141R to 143R in FIG. 2) for guiding fertilizer fed from the three fertilizers constituting the right-side fertilizer application group 100R to the field, (5 ) Connect the three left fertilizers (see reference numerals 101L to 103L in FIG. 3) and the three left fertilizer hoses that constitute the left fertilizer group 100L. Three left L-type fertilizer joints 130L, (6) three right fertilizers (see reference numerals 101R to 103R in FIG. 3) constituting the right fertilizer group 100R, and three right fertilizer hoses connected to each other A right L-type fertilization joint 130R, and (7) a left air chamber 150L that is disposed below the inside of the three left fertilizers and guides the conveying air for conveying the fertilizer to the lower part of the feeding device 120, which will be described later, and (8) 3 A right air chamber 150R that is arranged below the right fertilizer and guides the air flow for conveying fertilizer to the lower part of the feeding device 120, which will be described later, and (9) the rear of each of the left air chamber 150L and the right air chamber 150R. The end portion is connected to the connection duct 160 connected so that the conveying air can pass through, and (10) the front end portion of the left air chamber 150L. It is, and a blower 170 for generating the carrier air.

  As described above, the pair of left and right fertilizer application groups 100 </ b> L and 100 </ b> R are each provided with three fertilizers in the front-rear direction of the traveling vehicle body 2.

  Specifically, as shown in FIG. 3, the left fertilizer application group 100 </ b> L includes the left frontmost fertilizer 101 </ b> L arranged at the foremost side among the three fertilizers and the left rearmost side arranged at the rearmost side. The fertilizer application device 103L includes a left central fertilizer application device 102L disposed between the left frontmost fertilizer application device 101L and the left rearmost fertilizer application device 103L.

  Moreover, as shown in FIG. 3, the right fertilizer application group 100R includes a right frontmost fertilizer 101R arranged at the foremost side and a right last fertilizer 103R arranged at the rearmost among the three fertilizers. And a right central fertilizer 102R disposed between the right frontmost fertilizer 101R and the right rear fertilizer 103R.

  The left air chamber 150L and the right air chamber 150R of the present embodiment correspond to an example of a pair of left and right first ventilation members of the present invention. Moreover, the connection duct 160 of this Embodiment corresponds to an example of the 2nd ventilation member of this invention. Moreover, the blower 170 of this Embodiment corresponds to an example of the wind generator of this invention.

  Next, the configuration of the fertilizer application will be further described with reference to FIG. 4 showing a schematic partial sectional view of the right most front fertilizer application apparatus 101R.

  In the present embodiment, since the six fertilizers 101L to 103L and 101R to 103R have basically the same configuration, description of other fertilizers except the right front fertilizer 101R is omitted.

  That is, as shown in FIG. 4, the right frontmost fertilizer application device 101R includes a fertilizer hopper 110 that stores granular fertilizer, and a feeding device 120 that is connected to the lower side of the fertilizer hopper 110 and feeds the fertilizer by a set amount. ing.

  Further, as shown in FIG. 4, a feeding shaft 121 is mounted on the feeding device 120 so as to be rotatable along the front-rear direction of the traveling vehicle body 2, and is fed to the feeding shaft 121 from a dropping port 111 of the fertilizer hopper 110. A feeding roll 122 that receives the fertilizer to be dropped and feeds a set amount of fertilizer downward at predetermined intervals is provided. A plurality of feeding grooves 122 a for receiving fertilizer are formed on the outer peripheral surface of the feeding roll 122.

  Further, the feeding device 120 has a fertilizer discharge port 123 for discharging the fertilizer fed downward from the feeding roll 122 to the right L-type fertilization joint 130R, and the fertilizer fed downward from the feeding roll 122 to the right L-type fertilizer. A conveyance air introduction port 124 for introducing conveyance air to be conveyed toward the joint 130R side is provided.

  The fertilizer discharge port 123 protrudes outward from the center position of the traveling vehicle body 2 with reference to the lateral width direction of the traveling vehicle body 2. Further, the conveyance wind introduction port 124 is disposed at a position facing the fertilizer discharge port 123 and protrudes toward the inside of the traveling vehicle body 2.

  In the right frontmost fertilizer application device 101R shown in FIG. 4, one end portion 130Ra of the right L-type fertilization joint 130R is connected to the fertilizer discharge port 123, and the outer periphery of the right achamber 150R is connected to the conveying wind introduction port 124. A conveyance wind outlet 150Ra formed on the side surface is connected.

  The other end portion 130Rb of the right L-type fertilization joint 130R is connected to the right first fertilization hose 141R.

  With this configuration, as shown in FIG. 4, the fertilizer fed downward from the feed roll 122 is based on the left-right width direction of the traveling vehicle body 2 by the blown air (see arrow A in FIG. 4) blown from the conveying wind blowing port 150 </ b> Ra. Then, the traveling vehicle body 2 is conveyed from the center position toward the outside (see arrow B in FIG. 4), and fed from the fertilizer discharge port 123 to the right L-type fertilization joint 130R and to the right first fertilization hose 141R. Be transported.

  The right L-type fertilization joint 130R having one end portion 130Ra (see FIGS. 3 and 4) connected to the fertilizer discharge port 123 has the other end portion 130Rb (see FIGS. 3 and 4) in a plan view. 2 is bent at approximately 90 degrees toward the rear of FIG. 2 (see FIG. 2), and the other end portion 130Rb is bent at an obtuse angle that forms a gentle curve obliquely downward and rearward of the traveling vehicle body 2 in a side view. (See FIG. 3) An L-shaped molded member having a bent portion, for example, a rubber member.

  The left L-type fertilization joint 130L is an L-shaped molded member that is symmetrical with the right L-type fertilization joint 130R, and is, for example, a rubber member.

  In addition, as described above, the right L-type fertilization joint 130R described above is connected to the fertilizer discharge port 123 of the feeding device 120 of the right frontmost fertilizer application apparatus 101R, and further to the right side, the first first fertilization hose 141R is further provided. Are connected. Further, similarly to this configuration, the right L-type fertilization joint 130R described above is connected to the fertilizer discharge port 123 of each feeding device 120 of the right center fertilizer 102R and the right last fertilizer 103R. The right side 2nd fertilization hose 142R and the right side 3rd fertilization hose 143R are each connected with the tip.

  Further, similarly to the above configuration, the left L-type fertilization joint 130L described above is provided at the fertilizer discharge port 123 of the feeding device 120 of each of the left frontmost fertilizer 101L, the left central fertilizer 102L, and the left rear fertilizer 103L. Further, the left side first fertilization hose 141L, the left side second fertilization hose 142L, and the left side third fertilization hose 143L are further coupled to each other.

  The right frontmost fertilizer application device 101R, the right central fertilizer application device 102R, and the right last fertilizer application device 103R of the present embodiment are an example of a fertilizer applicator arranged on the right side of the present invention, and the left frontmost fertilizer application device of the present embodiment. The side fertilizer 101L, the left center fertilizer 102L, and the left last fertilizer 103L correspond to an example of a fertilizer disposed on the left side of the present invention.

  The right first fertilization hose 141R, right second fertilization hose 142R, right third fertilization hose 143R, left first fertilization hose 141L, left second fertilization hose 142L, and left third fertilization hose 143L of the present embodiment This is an example of the fertilization hose of the present invention.

  Moreover, the fertilizer hopper 110 of this Embodiment corresponds to an example of the fertilizer hopper of this invention, and the feeding apparatus 120 of this Embodiment corresponds to an example of the feeding apparatus of this invention.

  Moreover, the fertilizer discharge port 123 of this Embodiment corresponds to an example of the fertilizer discharge port of this invention.

  Further, the pair of left and right L-type fertilization joints 130 and 130R of the present embodiment is an example of the fertilization joint of the present invention.

  A clutch lever 125 (see FIG. 1) for turning the feeding shaft 121 on and off is provided at the front side of each feeding device 120 connected to the lower part of the fertilizer hopper 110 that is disposed adjacent to the left and right sides of the traveling vehicle body 2 respectively. To 3) are provided on the feeding device 120 fertilizer transmission shaft 126 (see FIG. 3).

  Further, all the handle portions of the clutch lever 125 protrude toward the inside of the traveling vehicle body 2, and each handle portion can be rotated in the front-rear direction of the traveling vehicle body 2, and each handle portion is rotated forward. The operation direction of the clutch lever 125 is unified so that the clutch of the feeding shaft 121 of each strip is disengaged by the operation.

  As a result, when the operator operates the clutch levers 125 arranged on the left and right sides from the rear step 47 side, the on / off directions of all the clutch levers 125 are unified, which is easy to understand and use. Further, since each clutch lever 125 is arranged on the front side of each feeding device 120, it is easy for the operator to visually recognize and use the clutch lever 125.

  In addition, a pair of left and right hopper lid members 104L and 104R are rotatably provided at the upper end portion of the fertilizer hopper 110 that is disposed adjacent to the left and right sides of the traveling vehicle body 2 respectively.

  Further, a pair of left and right handrails 105L and 105R are erected on the rear step 47 inside each of the pair of left and right fertilizer applicators 100L and 100R arranged on the left and right sides of the traveling vehicle body 2.

  According to the above configuration, the right L-type fertilization joint 130R that connects the right fertilization hoses 141R to 143R and the left L-type fertilization joint 130L that connects the left fertilization hoses 141L to 143L are respectively connected to the rear of the traveling vehicle body 2. Since each fertilization hose can be arranged without bending near the fertilizer discharge port 123 by bending it to the side, it is not necessary to adjust the bending method of each fertilization hose when attaching or detaching each fertilization hose, and maintenance is easy. improves.

  Further, the fertilizer discharge port 123 is not configured to be directed toward the rear of the traveling vehicle body 2, but is configured to be directed outward from the center portion with respect to the lateral width direction of the traveling vehicle body 2, so that the fertilizer discharge port 123 is maintained during maintenance. Since the right L-type fertilization joint 130R and the left L-type fertilization joint 130L can be pulled out toward the outside of the traveling vehicle body 2, it is easy to disassemble without having to remove peripheral members and maintainability. Further improvement.

  Next, arrangement | positioning of each fertilization hose 141R-143R on the right side and each fertilization hose 141L-143L on the left side is demonstrated, referring FIG.2, FIG.3, FIG.5.

  In the present embodiment, the right fertilization hoses 141R to 143R connected to the right L-type fertilization joint 130R and the left fertilization hoses 141L to 143L connected to the left L-type fertilization joint 130L are shown in FIG. In the same manner, each passes through the outer side of the fertilizer in plan view and proceeds toward the rear of the traveling vehicle body 2 and bends toward the inner side of the traveling vehicle body 2 behind the right last fertilizer 103R and the left last fertilizer 103L. In addition, on the basis of the transport direction in each fertilizer hose of fertilizer, it is bent backward for each strip on the downstream side of the bent position, the tip of each fertilizer hose (not shown), It is fixed in the vicinity of the planting position of the seedling of the planting rod 62 of each strip.

  Here, the bending position bent toward the rear for each strip of each fertilizer hose will be further described.

  That is, among the fertilizers arranged side by side in the front-rear direction on both the left and right sides of the traveling vehicle body 2, the bent position of the fertilizer hose connected to the fertilizer arranged on the front side is more rearward. It is comprised so that it may be located in the outer side on the basis of the center position of the left-right width direction of traveling body 2 in the plane view rather than the bending position of the fertilizer hose connected with the arranged fertilizer application (refer to Drawing 2). .

  Specifically, among the three fertilizers on the right side of the traveling vehicle body 2 (see FIG. 3), it is connected to the feeding device 120 of the right frontmost fertilizer 101R disposed on the foremost side via the right L-type fertilizer joint 130R. The bent position of the right first fertilization hose 141R is located on the outermost right side with respect to the center position behind the left and right widths of the traveling vehicle body 2 in plan view, and the tip of the right first fertilization hose 141R Is fixed in the vicinity of the planting position of the right 1 (left 6) seedling (see FIGS. 2 and 5).

  Of the three fertilizers on the right side of the traveling vehicle body 2 (see FIG. 3), the rightmost fertilizer 103R disposed at the rearmost side is connected to the feeding device 120 via the right L-type fertilizer joint 130R. The bending position of the right third fertilization hose 143R is located closest to the center with respect to the center position behind the left and right widths of the traveling vehicle body 2 in plan view, and the tip of the right third fertilization hose 143R is It is fixed in the vicinity of the planting position of the 3 (left 4) seedlings (see FIGS. 2 and 5).

  Further, among the three fertilizers on the right side of the traveling vehicle body 2 (see FIG. 3), the second right side connected to the feeding device 120 of the right central fertilizer 102R disposed at the center via the right L-type fertilizer joint 130R. The bent position of the fertilizer hose 142R is located between the bent position of the right first fertilizer hose 141R and the bent position of the right third fertilizer hose 143R in plan view, and the tip of the right second fertilizer hose 142R. Is fixed in the vicinity of the right 2 (left 5) seedling planting position (see FIGS. 2 and 5).

  Of the three fertilizers on the left side of the traveling vehicle body 2 (see FIG. 3), the left side connected to the feeding device 120 of the left frontmost fertilizer 101L disposed on the foremost side via the left L-type fertilizer joint 130L. The bent position of the first fertilization hose 141L is located on the outermost left side with respect to the center position behind the left and right widths of the traveling vehicle body 2 in plan view, and the tip of the left first fertilization hose 141L is It is fixed in the vicinity of the planting position of one seedling (see FIGS. 2 and 5).

  Of the three fertilizers on the left side of the traveling vehicle body 2 (see FIG. 3), the leftmost fertilizer 103L disposed at the rearmost side is connected to the feeding device 120 via the left L-type fertilizer joint 130L. The bending position of the left third fertilization hose 143L is located closest to the center with respect to the center position behind the left and right widths of the traveling vehicle body 2 in plan view, and the tip of the left third fertilization hose 143L is It is fixed in the vicinity of the planting position of the three-row seedling (see FIGS. 2 and 5).

  Of the three fertilizers on the left side of the traveling vehicle body 2 (see FIG. 3), the second left side connected to the feeding device 120 of the left central fertilizer 102L disposed in the center via the left L-type fertilizer joint 130L. The bent position of the fertilizer hose 142L is located between the bent position of the left first fertilizer hose 141L and the bent position of the left third fertilizer hose 143L in plan view, and the tip of the left second fertilizer hose 142L. Is fixed in the vicinity of the planting position of the left two-row seedlings (see FIGS. 2 and 5).

  According to the above configuration, each fertilizer hose is bent inward of the traveling vehicle body 2 behind the fertilizer hopper 110 disposed at the rearmost side, thereby making the bend radius (eg, R100) of each fertilizer hose gentle. Therefore, it is hard to produce the location which is easy to clog a fertilizer's movement path | route, and stabilization of the amount of fertilization is achieved.

  Further, as the fertilizer hose connected to the feeding device 120 of the fertilizer applicator disposed on the front side of the traveling vehicle body 2 is bent backward at a more outer position with reference to the center position in the left-right width direction of the traveling vehicle body 2, Since the difference in the distance from the feeding device 120 to the fertilizer discharge position can be reduced, the timing at which the fertilizer is supplied to the field is prevented from being varied, and the fertilization accuracy is improved.

  Moreover, since it becomes possible to eliminate the difference in the length of the fertilization hose, fertilization hoses with different lengths are not required, and members can be shared.

  Next, the arrangement of the fertilization hoses 141R to 143R on the right side and the fertilization hoses 141L to 143L on the left side will be described with reference to FIGS.

  In the present embodiment, in a plan view, the fertilizer hoses arranged outside the pair of left and right fertilizer application groups 100L and 100R are fixed to fertilizer frames (not shown) provided on the left and right sides of the traveling vehicle body 2, Further, the fertilizer hoses bent toward the inner side of the traveling vehicle body 2 at the rear side of the traveling vehicle body 2 at the rear side of the traveling vehicle body 2 are advanced toward the rear of the traveling vehicle body 2 and behind the right last fertilizer 103R and the left last fertilizer 103L. Twelve hose guide members 180 for fixing to a traveling body frame (not shown) are provided.

  The hose guide member 180 includes a hose holding portion 181 that holds one, two, or three fertilized hoses together, and a fixing portion 182 for fixing the hose holding portion 181 to the fertilization frame or the traveling vehicle body frame. (See FIG. 3).

  Specifically, with respect to each fertilizer hose arranged outside the pair of left and right fertilizer application groups 100L and 100R, the connecting position of the pair of left and right L-type fertilizer joints 130L and 130R and each fertilizer hose, that is, left and right A hose guide member 180 is provided at a total of six connection positions, three in each case (see FIGS. 2 and 3).

  In addition, for each fertilization hose arranged on the rear side of the traveling vehicle body 2, on the upstream side of the bending position bent toward the rear, that is, a total of six bending positions of three on the left and right, A hose guide member 180 is provided (see FIGS. 2 and 5).

  In addition, the hose guide member 180 of this Embodiment corresponds to an example of the side hose guide of this invention, and corresponds to an example of the rear hose guide of this invention.

  Moreover, the hose holding | maintenance part 181 of this Embodiment corresponds to an example of the side hose holding | maintenance part of this invention, and corresponds to an example of the rear hose holding | maintenance part of this invention.

  According to the above configuration, by arranging the hose guide member 180 at the connection portion between each fertilization joint and each fertilization hose, the position of attaching each fertilization joint and each fertilization hose is easy to understand, and the fertilization hose that does not hinder the supply of fertilizer Since the routing can be easily realized, the amount of fertilization can be stabilized and the maintainability can be improved.

  In addition, by arranging the hose guide member 180 on the upstream side of the bent portion toward the rear of each fertilization hose or around the bent portion, it is possible to prevent the bending radius of each fertilization hose from changing, It is prevented that the supply timing of the fertilizer varies and the supply amount of the fertilizer becomes unstable, and the fertilization accuracy is improved.

  Further, a plurality of fertilizers are provided by providing one hose guide member 180 disposed on the left and right sides of the traveling vehicle body 2 and one hose guide member 180 disposed on the rear side of the traveling vehicle body 2 for each fertilizer hose. When the hose is attached, a plurality of fertilized hoses can be held together by each hose guide member, so that it is not necessary to provide more hose guide members 180 than the number of fertilized hoses, and the number of parts can be reduced.

  In the above embodiment, a configuration has been described in which a member that prevents an operator from stepping on the connecting duct 160 by mistake is provided, but not limited thereto, for example, as shown in FIGS. A configuration in which a guard pipe 190 that prevents the connecting duct 160 from being stepped on by mistake may be provided. The guard pipe 190 is an example of the protective member of the present invention.

  Here, with reference to FIGS. 6 and 7, the guard pipe 190 disposed along the connection duct 160 and positioned above the connection duct 160 and members related thereto will be described.

  FIG. 6 is a schematic view showing a configuration in which a guard pipe 190 and related members are provided as a modification of the fertilizing mechanism 100 according to the embodiment of the present invention, and the connection duct 160 is viewed from the left side of the riding rice transplanter 1. FIG. FIG. 7 is a view of a modified example of the fertilization mechanism shown in FIG. 6 as viewed from the back of the riding rice transplanter 1.

  As shown in FIG. 7, the left and right ends 190 </ b> L and 190 </ b> R of the guard pipe 190 are fixed to the pair of left and right handrails 105 </ b> L and 105 </ b> R, respectively. Located above.

  As a result, the operator can be prevented from accidentally stepping on the connecting duct 160 with the foot 191 during work, and deformation or breakage of the connecting duct 160 can be prevented.

  Further, since the deformation of the connecting duct 160 can be prevented, the change in the flow of the conveying wind due to the deformation of the connecting duct 160 can be prevented. improves.

  Moreover, since the breakage of the connecting duct 160 can be prevented, it is possible to prevent the conveyance air from coming off in the middle, and the fertilizer released from the feeding devices 120 arranged on the left and right can be stably conveyed to the fertilizer supply unit. .

  Furthermore, in the case of this configuration, as shown in FIGS. 6 and 7, the duct mounting stay 200 holding the connection duct 160 is fixed to the guard pipe 190. In addition, a fertilizer hose attachment stay 210 that holds one or two fertilization hoses arranged on the rear side of the traveling vehicle body 2 is fixed directly to the guard pipe 190 via the duct attachment stay 200. .

  In addition, the duct attachment stay 200 of this Embodiment corresponds to an example of the attachment member of this invention.

  Specifically, as shown in FIG. 6, the duct mounting stay 200 includes a ring-shaped member 201 that holds the connecting duct 160 on the inner peripheral portion, and a plate-shaped fixed member that is connected to the outer peripheral surface of the ring-shaped member 201. The upper end portion 202a of the fixed portion 202 is fixed to a guard pipe 190 disposed on the rear side of the traveling vehicle body 2.

  Furthermore, various harness mounting stays (not shown) and various cable mounting stays (not shown) are directly or indirectly fixed to the guard pipe 190.

  Accordingly, the duct attachment stay 200, the fertilizer hose attachment stay 210, various harness attachment stays (not shown), various cable attachment stays (not shown), and the like can be fixed to the guard pipe 190. Since the pipe 190 can also serve as a routing guide function, the number of parts can be reduced.

  Next, with reference to FIGS. 8 (a) and 8 (b), a description will be given focusing on an intake cover for an air cleaner provided on the upper portion of the engine 20. FIG.

  In FIG. 8A and FIG. 8B, the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 8A is a schematic left side view schematically showing the inside of the engine cover 21 of the riding rice transplanter 1 in the embodiment of the present invention, and FIG. 8B is the intake air shown in FIG. FIG. 6 is a schematic left side view schematically showing an improved configuration example of the cover 320.

  As shown in FIG. 8A, a pair of left and right engine intake ports 300L and 300R formed on the left and right sides of the cockpit 55 on the upper surface of the engine cover 21, and an air cleaner intake port 310 covered with the engine cover 21. Are connected by a duct-shaped intake cover 320.

  In addition, the cooling air sucked by the cooling fan 330 provided on the front side of the engine 20 cools the high temperature portion, and is then discharged forward from the discharge port 331 provided on the upper front side of the engine 20.

  A heat insulating plate 333 is provided above the discharge port 331 and below the intake cover 320.

  According to the above configuration, by providing the intake cover 320 and the heat insulating plate 333, it is possible to prevent the hot air discharged from the discharge port 331 from being sucked from the air cleaner intake port 310.

  In addition, by increasing the opening area of the discharge port 331 (for example, by making the width of the discharge port 331 approximately the same as the opening diameter of the cooling fan 330), hot air can easily flow from the discharge port 331, thereby preventing hot air from staying. I can do it.

  Further, as shown in FIG. 8B, the intake cover 320 has a configuration in which the lower end portion of the first cover 321 protrudes downward from the lower end surface of the second cover 322, and the lower end of the first cover 321. By providing a hole in the front end portion 321a, the dew condensation water or the like generated on the inner wall surface of the first cover 321 is discharged from the hole to the outside of the intake cover 320, so that the dew condensation water or the like is discharged from the first cover 321. It is possible to prevent the air cleaner inlet 310 from entering through the second cover 322 as much as possible.

  8A, the case where the intake cover 320 and the heat insulating plate 333 are provided has been described. However, the present invention is not limited to this case. For example, the case where the intake cover 320 is provided and the heat insulating plate 333 is not provided. However, the hot air discharged from the discharge port 331 can be prevented from being sucked from the air cleaner intake port 310.

  Next, a configuration in which a mudguard boot is mounted on the shifter shaft of the auxiliary transmission unit will be described with reference to FIGS. 9A and 9B.

  FIG. 9A is a partial cross-sectional view of the auxiliary transmission unit 340, and FIG. 9B is an enlarged view of the shifter shaft 350 shown in FIG. 9A and its periphery.

  As shown in FIG. 9B, the shift stroke portion on the tip side of the shifter shaft 350 and the oil seal bearing 351 are covered with an elastic rubber boot 360 having a bellows portion 361.

  The bellows tip 361 a on the tip side of the boot 360 is fixed to the shifter shaft 350 with a clasp 370. On the other hand, the bellows root portion 361b of the boot 360 has a boot-side convex portion 362 formed on the inner peripheral surface of the bellows root portion 361b, and a shifter shaft penetration portion 342 on the transmission case 341 side in which the auxiliary transmission portion 340 is built. It is configured to be caught in a case-side recess 342a formed on the outer peripheral portion, and a harness band 371 is wound around the outer peripheral surface of the bellows root portion 361b corresponding to the position of the boot-side convex portion 362 and firmly fixed. The clasp 370 is configured to be easily detached from the harness band 371.

  The boot 360 is filled with grease.

  Accordingly, the shift stroke portion on the tip side of the shifter shaft 350 and the oil seal bearing 351, which are located in a place where mud easily adheres at the bottom of the transmission case 341, are configured to be covered with a stretchable rubber boot 360. Thus, the oil seal can be protected and the durability can be improved.

  Further, since the clasp 370 is configured to be more easily detached from the harness band 371, the bellows tip 361 a that is the tip side of the boot 360 is separated from the shifter shaft 350 even when mud adheres around the boot 360. By detaching, it is possible to prevent an unbalanced load from being applied to the seal part.

  Next, a configuration in which an extension pipe 410 for generating turbulent flow is retrofitted to the muffler tail pipe 400 of the exhaust pipe of the engine 20 will be described with reference to FIGS. 10 (a) and 10 (b).

  FIG. 10A is a diagram illustrating a state before the extension pipe 410 for generating turbulent flow for improving exhaust sound is attached to the muffler tail pipe 400, and FIG. 10B is a diagram illustrating FIG. It is a figure which shows the state which attached the extension pipe 410 for turbulent flow generation to the muffler tail pipe 400 shown in FIG.

  In FIG. 10A and FIG. 10B, the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 10A, protruding weld beads 401 are welded to both sides of the outer peripheral surface of the tip portion of the muffler tail pipe 400.

  On the other hand, as shown in FIG. 10A, the extension pipe 410 has a cutout portion 411 formed at a position corresponding to the position of the weld bead 401 formed on the muffler tail pipe 400 as shown in FIG. Has a concavo-convex shape for generating turbulent flow, but the tip of the convex portion has a flat surface portion 412.

  Further, the inner diameter of the extension pipe 410 is configured to be slightly smaller than the outer diameter of the muffler tail pipe 400. When the extension pipe 410 is attached to the muffler tail pipe 400, the extension pipe 410 is heated and expanded to extend the extension pipe. By fitting the inlet side of 410 with the tip of the muffler tail tube 400 and hitting the flat portion 412 on the outlet side of the extension pipe 410, the fitting is performed.

  As a result, when the extension pipe 410 is cooled, it contracts to form a so-called tight fit, and it is possible to realize a retrofitted part that is difficult to drop off even for a muffler with a lot of vibration, and the exhaust noise can be improved reliably.

  Next, the configuration of the steering gear 380 used when the front wheel 5 is steered by the handle 52 will be described with reference to FIGS. 11 (a) to 11 (c).

  FIG. 11A is a plan view of the steering gear 380 of the riding rice transplanter 1. FIG. 11B is a side view of the steering gear 380 of FIG. Moreover, FIG.11 (c) is a QQ cross-sectional arrow view of Fig.11 (a).

  As shown in FIG. 11A, the steering gear 380 realizes a substantially truss structure by providing a rib appropriately in a thin portion without providing a punched shape.

  Specifically, the steering gear 380 includes a plurality of first ribs 382a formed in the radial direction from the central boss portion 381 and a first ridge formed along the fold line of the boss portion 381 from the end stopper portions 383 at both ends. Two ribs 382a, a thin portion 384, and a gear tooth 385 in a fan-shaped arc portion.

  The thickness of the second rib 382b is configured to be thicker than the thickness of the first rib 382a.

  As a result, since the steering gear 380 has no punch shape, the possibility of hydraulic oil being agitated and causing air clogging in the suction hose is reduced as in the case of the punch shape, and hydraulic operation is performed by stabilizing the hydraulic oil path. Can be realized.

  In addition, when the steering gear has a punching shape, the cost required for manufacturing the punching die is high, but in the case of the steering gear 380 without a punching shape, the die cost becomes easy.

  Further, by providing a rib shape in a portion where strength is required and making the other portion a thin shape, the strength of the end stopper 383 can be stabilized, and the weight of the steering gear 380 can be reduced.

  Next, with reference to FIG. 12, the attachment position of the adapter COMP430, which is an intermediate member connecting the suction hose 420 and the transmission case 341, and the attachment position of the oil inspection bolt 440 will be described.

  In FIG. 12, the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 12 is a view showing a mating surface of the transmission case 341 of the riding rice transplanter 1.

  As shown in FIG. 12, the positions of the lower holes of the mounting bolts 431a and 431b for fixing the adapter COMP 430 to the transmission case 341 are arranged so that the line 431 connecting the centers of the lower holes is inclined with respect to the horizontal. Has been.

  Thereby, the dimension which a tool enters between the wall surface of the transmission case 341 and the mounting bolts 431a and 431b can be secured, and the disassembly and assemblability can be improved.

  Also, as shown in FIG. 12, by arranging the mounting position of the oil inspection bolt 440 behind the oil hose 450 (left side in FIG. 12), the visibility is improved and the rice planting operation tends to be lowered. The riding type rice transplanter 1 can detect a drop in the oil level at an early stage, thereby preventing a delay in detection of oil shortage.

  Next, a configuration in which the suction hose 420 is used as a hydraulic oil filter will be described with reference to FIGS. 13 (a) and 13 (b).

  In FIG. 13A and FIG. 13B, the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 13A is a schematic cross-sectional view of the transmission case 341 when the riding rice transplanter 1 is viewed from the front, and FIG. 13B is a right side view of the suction hose guide 460.

  The suction hose 420 shown in FIG. 13A has an outer peripheral surface made of a metal mesh, and is used as a hydraulic oil filter.

  As shown in FIG. 13 (b), the suction hose guide 460 has a holding part 461 in which a wire rod is formed in a substantially U shape to hold the suction hose 420 on the inner peripheral side, and curls one end side of the holding part 461. The bolt penetration part 462 formed in this way, and the positioning end part 463 in which the other end side of the holding part 461 is bent toward the left transmission case 341L side (the back side in FIG. 13B). Yes.

  With this configuration, the suction hose guide 460 is positioned by inserting the positioning end portion 463 into the recess of the left transmission case 341L, and is fixed to the mating surface of the left transmission case 341L by inserting the bolt 421 into the bolt penetration portion 462. The

  Further, the root 420a of the suction hose 420 is fixed to the right transmission case 341R with an adapter COMP430, and the tip 420b of the suction hose 420 is fixed to the mating surface of the left transmission case 341L with a bolt 421. It is held by the holding portion 461 of the guide 460.

  Thereby, since the front-end | tip part 420b of the suction hose 420 is hold | maintained reliably, the motion of the front-end | tip part 420b by an oil flow is suppressed, and damage can be prevented.

  In addition, the suction hose 420 has a higher filter effect as the exposure area to the oil is larger, but the tip portion 420b is held by the suction hose guide 460, which is a wire, without damaging the exposure area to the oil. The tip portion 420b can be securely held.

  Further, the root portion 420a of the suction hose 420 is fixed to the right transmission case 341R, and the tip portion 420b of the suction hose 420 is held on the left transmission case 341L side, thereby increasing the length of the suction hose 420. It can take a lot of exposed area to oil.

  Further, since the left transmission case 341L remains on the traveling vehicle body 2 side during disassembly / assembly, the presence or absence of the suction hose guide 460 can be easily confirmed, and forgetting to install the suction hose guide 460 can be prevented.

  In the above embodiment, a case where a six-row riding rice transplanter is configured as an example of the seedling transplanter of the present invention has been described. However, the present invention is not limited to this, and for example, a 4-row or 8-row configuration may be used, and the number is not limited.

  Moreover, although the said embodiment demonstrated the case where a pair of left and right L type fertilization joints 130L and 130R had the bending part bent toward the back of the traveling vehicle body 2 by planar view, it is not restricted to this, for example A configuration having a bent portion bent forward is also possible.

  Moreover, in the said embodiment, although the left fertilizer application group 100L and the right fertilizer application group 100R which were arrange | positioned at the right-and-left both ends of the rear step 47 demonstrated the case where three fertilizers were each provided. However, the present invention is not limited to this. For example, two or four of each may be provided.

  In addition, the seedlings to be transplanted are not limited to rice seedlings, and may be any seedlings such as vegetables and fruits as long as they can be automatically planted by a seedling transplanting apparatus.

  The seedling transplanter according to the present invention is useful as a seedling transplanter capable of supplying a stable fertilizer amount.

DESCRIPTION OF SYMBOLS 1 Passenger rice transplanter 2 Car body 5 Front wheel 10 Rear wheel 20 Engine 40 Floor step 47 Rear step 60 Planting device 61 Seedling planting part 100 Fertilization mechanism 100L Left fertilizer group 100R Right fertilizer group 101L Left frontmost fertilizer 102L Left Central fertilizer 103L Left last fertilizer 101R Right front fertilizer 102R Right central fertilizer 103R Right last fertilizer 110 Fertilizer hopper 120 Feeder 130L Left L fertilizer joint 130R Right L fertilizer joint

Claims (6)

Fertilization device provided on the right and left sides of the run line body (2) (101L, 102L, 103L, 101R, 102R, 103R) and, fertilization hose supplying fertilizer fed from fertilizer apparatus of the right and left (100L, 100R) to the field In the seedling transplanting machine provided with (141L, 142L, 143L, 141R, 142R, 143R) ,
The left and right fertilizers (101L, 102L, 103L, 101R, 102R, 103R) include a fertilizer hopper (110) that stores fertilizer and a plurality of feeding devices (120) that feed out fertilizer supplied from the fertilizer hopper (110). constituted by),
The fertilizer hoses (141L, 142L, 143L, 141R, 142R, 143R) are connected to the feeding devices (120) through the fertilizer joints (130L, 130R) through which the fertilizer passes,
A seedling transplanting machine , wherein a plurality of fertilization joints (130L, 130R) are formed with bent portions toward the front or rear of the traveling vehicle body (2) in plan view . The fertilizing unit (101L, 102L, 103L, 101R , 102R, 103R) , the are arranged side by side several prior-rear direction on the left and right sides of the vehicle body (2), a plurality of the fertilization joint (130L, 130R) Each of the bent portions is bent toward the rear of the traveling vehicle body (2), and the fertilizing hoses (141L, 142L, 143L, 141R, 141 ) attached to the fertilizing joints (130L, 130R) are provided . 142R, 143R) are bent inward from the left and right sides of the traveling vehicle body behind the fertilizer (103L, 103R) arranged in the last row in plan view, and are further bent backward. Has been
The fertilization hose (141L, 142L, 143L, 141R , 142R, 143R) flexion location that is bent toward the rear of the front and rear multiple fertilization devices arranged in a direction (101L, 102L, 103L, 101R, 102R, 103R), the fertilizer applied to the bent position of the fertilizer hose (141L, 141R) connected to the fertilizer application device (101L, 101R) disposed further to the front side. device (103L, 103R) the fertilization hose (143L, 143R) coupled to than the bending position of, in plan view, is located outside the reference to the central position of the lateral width direction of the vehicle body (2) The seedling transplanter according to claim 1, wherein: A side hose guide (180) for fixing the fertilization hose (141L, 142L, 143L, 141R, 142R, 143R ) to the left and right sides of the traveling vehicle body (2);
The side hose guide (180) is arranged at a connection position between the fertilization joint (130L, 130R) and the fertilization hose (141L, 142L, 143L, 141R, 142R, 143R) or downstream of the connection position. The seedling transplanter according to claim 2, wherein: A rear hose guide (180) for fixing the fertilization hose (141L, 142L, 143L, 141R, 142R, 143R ) to the rear side of the traveling vehicle body (2);
The rear hose guide (180) is arranged on the upstream side of the bent position bent toward the rear of the fertilizer hose (141L, 142L, 143L, 141R, 142R, 143R). The seedling transplanter according to claim 3. Ventilation ducts (150L, 150R) for guiding the conveyance air for conveying fertilizer to the left and right fertilization hoses (141L, 142L, 143L, 141R, 142R, 143R) are provided, and the left and right ventilation ducts (150L, 150R) are provided. Connected by a connecting duct (160),
The seedling transplanter according to any one of claims 1 to 4, further comprising an attachment stay (210) that supports a portion of the fertilizer hose extending in the left-right direction of the machine body . The right and left of the fertilizing device provided each (101L, 102L, 103L, 101R , 102R, 103R) horizontal direction of the machine body inside railing of (105L, 105R),
The left and right ends (190L, 190R) of the protection member (190) that protects the connection duct (160) are connected to the left and right handrails (105L, 105R), and the protection member (190) is connected to the connection duct (160). The seedling transplanter according to claim 5 , wherein the seedling transplanter is disposed at a higher position than the above .