JP2005348749A - Sulky rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sulky rice plant transplanter where an opening and closing lid must be closed by tightly screwing to a cylindrical male screw part, but if screwing so, on the contrary, the defect that the opening and closing lid cannot instantaneously be opened is revealed but the defect is solved in this invention. <P>SOLUTION: This sulky rice plant transplanter has a fertilizer distributing tank at a driving gear part and a fertilizer inlet opening of the tank is opened and closed with a lid body. In this case, the lid body is rotatably pivoted to a pivoting pin set to the inlet opening for the fertilizer and the lid body is made openable with a connection and disconnection tool provided on the lid body. Accordingly, the lid body can instantaneously be opened with the connection and disconnection tool and the following operations, for example, fertilizer feeding operation, or the like, can promptly be carried out. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lid structure for a fertilizer tank of a riding rice transplanter.

  Conventionally, as one form of the fertilizer tank, there is one in which an open / close lid formed in a cap shape is detachably attached to a cylindrical male screw portion which is a cylindrical portion forming a fertilizer inlet of the tank body (for example, , See Patent Document 1).

That is, an internal thread portion that is screwed to the cylindrical male screw portion is formed on the inner peripheral surface of the open / close lid body, and the female screw portion of the open / close lid body is screwed and screwed to the cylindrical male screw portion. ing.
JP 2000-41416 A

  However, in the case of such an opening / closing lid, the paste-like fertilizer accommodated in the tank body may spill out from the gap between the opening / closing lid and the cylindrical male screw part due to vibration of the airframe, etc. However, there is a problem in that when the opening / closing lid is opened, the opening / closing lid cannot be opened instantaneously.

  Therefore, in the present invention, in a riding rice transplanter in which a fertilizer tank is disposed in the traveling unit and the fertilizer inlet of the fertilizer tank can be opened and closed by the lid body, the lid body is attached to a pivot pin provided at the fertilizer inlet. Provided is a riding rice transplanter characterized in that it is pivotally supported and is closed so as to be opened and closed by an engaging / disengaging operation member provided on a lid body.

  The present invention is also characterized in that a packing is attached to the inner surface of the lid main body, and the packing is brought into surface contact with the end face of the fertilizer input port in a pressed state to seal the fertilizer input port.

  (1) In the present invention described in claim 1, in a riding rice transplanter in which a fertilizer tank is disposed in the traveling section and the fertilizer inlet of the fertilizer tank can be opened and closed by the lid body, the lid body is used as a fertilizer inlet. A pivot pin is pivotally supported on the provided pivot pin, and is closed so as to be opened and closed by an engagement / disengagement operation member provided on the lid body.

  Therefore, the fertilizer input port is pivotally supported by a pivot pin, and the fertilizer input port is closed by the engagement / disengagement operation member provided on the lid main body with the fertilizer input port closed by the lid main body. Can do.

  Further, when the fertilizer inlet is opened by the lid body, the lid body can be opened instantaneously by operating the engagement / disengagement operation member in the opposite direction to the above procedure, which is a subsequent operation. Fertilizer replenishment work can be performed quickly.

  (2) In the present invention according to claim 2, a packing is attached to the inner surface of the lid main body, and the packing is brought into surface contact with the end surface of the fertilizer input port in a pressed state so as to seal the fertilizer input port. .

  Therefore, the packing attached to the inner surface of the lid main body can be brought into surface contact with the end face of the fertilizer input port in a pressed state to seal the fertilizer input port.

  FIG. 1 is a side view of a riding rice transplanter A equipped with a fertilizer application apparatus M according to the present invention, and FIG. 2 is a plan view of the riding rice transplanter A.

  As shown in FIG. 1 and FIG. 2, the riding rice transplanter A has a plurality of strips (four strips in the present embodiment) by connecting the planting portion 2 to the rear of the traveling portion 1 via the lift coupling mechanism 3 so as to be lifted and lowered. Planting work and fertilizing work can be performed at the same time.

  As shown in FIG. 1 and FIG. 2, the traveling unit 1 is provided with a prime mover unit 5 mainly composed of the engine E at the front portion of the vehicle body frame 4, and a driving unit 6 is provided at a rear position of the prime mover unit 5. A fertilizer application device M is provided at a position behind the portion 6.

  A transmission unit 8 extending in the front-rear direction is attached to the vehicle body frame 4, and the transmission unit 8 is linked to the engine E. A pair of left and right components are connected to the front of the transmission unit 8 via a front axle case 9. The front wheels 10 and 10 are interlocked and connected to each other, while the rear part of the transmission unit 8 is interlocked and connected with a pair of left and right rear wheels 12 and 12 via a rear axle case 11. Reference numeral 13 denotes a bonnet that covers the prime mover unit 5, and reference numeral 14 denotes a spare seedling stage.

  Further, the driving unit 6 arranges a steering column 15 immediately after the bonnet 13 and attaches a steering wheel 17 to the upper end of the steering column 15 via a wheel support shaft 16. Seat 18 is arranged at the rear position, step part 19a, 19a arranged on the left and right side of bonnet 13, floor part 19b arranged between steering wheel 17 and seat 18, and below seat 18 etc. The seat support portion 19c is integrally formed with the casing body 19. 19d is a footrest, 20 is a transmission lever, 21 is a seeding lever, 22 is a clutch pedal, and 23 and 23 are left and right brake pedals.

  As shown in FIG. 2 and FIG. 6, the fertilizer M is applied to the side strip fertilizer 30 that applies the fertilizer h1 in the form of four strips to the side strips located on the outer sides of the four seedling planting strips. A deep layer fertilizer 31 for applying two strips of paste-like fertilizer h2 to the deep layer located between the seedling planting rows adjacent in the left-right direction, and the side strip fertilizer 30 and the deep layer fertilizer The body 31 is disposed in a balanced manner at the left and right rear portions of the traveling unit 1.

  Here, as shown in FIG.2 and FIG.6, the paste-form fertilizer h2 fertilized to the deep part of the field G is using the fertilizer of late action rather than the paste-form fertilizer h1 fertilized to a side strip part. . N is a seedling, H1 is a side strip fertilizer, and H2 is a deep fertilizer strip.

  As shown in FIGS. 3 to 5, the side strip fertilizer 30 includes a fertilizer tank 32 containing paste-like fertilizer h <b> 1 and two tandem fertilizers connected to the fertilizer tank 32. The pump 33, 33, the fertilizer pipes 34, 34, 34, 34 connected to the fertilizer pumps 33, 33, and the switching valve 35 provided in the middle of these fertilizer pipes 34, 34, 34, 34, and switching Switching levers 36, 36, 36, 36 provided on the valve 35 are provided, and the same-side strip fertilizer 30 is attached to the vehicle body frame 4 via a fertilizer support frame 37.

  The fertilizer tank 32 is disposed at the left rear position of the seat 18, and a fertilizer input port 39 (see FIG. 9) is formed in the upper part of the tank body 38 that is formed horizontally in the left-right direction. An open / close lid 40 is detachably attached. 46 is a remaining amount detection sensor for detecting the remaining amount of the fertilizer h1 in the fertilizer tank 32. The mounting structure of the opening / closing lid 40 will be described later.

  In addition, the two fertilizer pumps 33, 33 are arranged so as to communicate with each other right and left at a position directly below the fertilizer tank 32, and the suction port formed in the right fertilizer pump 33 and the bottom of the fertilizer tank 32 are arranged. A supply pipe 41 is interposed between the formed supply ports, and the base end side forming pipes 34a, 34a, 34a, 34a, 34 of the fertilizer pipes 34, 34, 34, 34 are provided at the discharge ports of the fertilizer pumps 33, 33, 33, 33 The base ends of 34a and 34a are connected. 42 is a return pipe for returning surplus fertilizer in the fertilizer pump 33 into the fertilizer tank 32, 43 is a discharge pipe that is extended in the left-right direction and connected to the lower part of the fertilizer pumps 33, 33, and 44 is a pipe of the discharge pipe 43. A flexible discharge pipe 45 connected to the left end portion is a discharge pipe locking piece.

  The switching valve 35 is positioned on the left side of the seat 18 provided in the operation section 6 and is placed on the seat support section 19c, and is formed on the base end side of the fertilization pipes 34, 34, 34, 34 described above. At the tip of the pipes 34a, 34a, 34a, 34a, the bases of the pipes 34b, 34b, 34b, 34b forming the tip side of the fertilizer pipes 34, 34, 34, 34 through the switching valve bodies 35a, 35a, 35a, 35a, respectively. In addition to connecting the ends, the base ends of the return pipes 47, 47, 47, 47 are connected via the switching valve bodies 35a, 35a, 35a, 35a, and the tips of the return pipes 47, 47, 47, 47 are fertilized. Connected to pumps 33 and 33.

  Each switching valve main body 35a incorporates a three-way valve (not shown), while the three-way valve of each switching valve main body 35a is linked to the base end portion of the switching lever 36 so that the tip of each switching lever 36 is connected. As shown in FIG. 3, the gripping part 36a formed in the part includes a forward fertilization position (a), an upward stapling position (b), and a downward cleaning position (c). In the meantime, the three-way valve can be switched by rotating the switching levers 36 about the axis in the left-right direction.

  In addition, the gripping portion 36a formed at the distal end portion of each switching lever 36 is disposed so as to be positioned in front of the rear end portion 18a of the seat 18 at any operation position.

  Further, as shown in FIGS. 1 and 3, each distal end side forming pipe 34b has a proximal end connected to the front surface of each switching valve body 35a, and the proximal end 34c is switched to the fertilization position (a). The lever 36 is bent in a semicircular arc shape forward and downward at a position rearward of the gripping portion 36a of the lever 36 and extended rearward. The midway portion 34d passes through the lower portion of the fertilizer pumps 33 and 33, and the tip portion 34e passes through the planting portion 2. Is arranged.

  And the front-end | tip part 34e of each front-end | tip part side formation pipe 34b is shown in FIG.1 and FIG.2, among the four side strip part fertilization nozzles 48,48,48,48 provided in the planting part 2. Connected to one.

  Thus, when each switching lever 36 is operated to the fertilization position (a), each base end side forming pipe 34a and tip end side forming pipe 34b communicate with each other via the switching valve body 35a, Paste fertilizer h1 is supplied to fertilizer tank 32 → supply pipe 41 → fertilization pump 33 → each base end side forming pipe 34a → each switching valve body 35a → each tip end side forming pipe 34b → each side strip fertilizing nozzle 48 Then, as shown in FIG. 6, each side strip fertilizer application nozzle 48 is discharged to the side strip of the field G to form the side strip fertilizer strip H1.

  Then, when each switching lever 36 is operated to the fastening position (b), each base end side forming pipe 34a and each return pipe 47 communicate with each other via each switching valve body 35a, and paste-like The fertilizer h1 is returned to the fertilizer tank 32 → supply pipe 41 → fertilizer pump 33 → each base end side forming pipe 34a → each switching valve body 35a → return pipe 47 → fertilizer pump 33, and fertilization to each strip is stopped To be.

  In addition, when each switching lever 36 is operated to the cleaning position (c), each tip side forming pipe 34b and each return pipe 47 communicate with each other via each switching valve body 35a, and the cleaning water is supplied to the fertilizer tank. 32 → supply pipe 41 → fertilizer pump 33 → return pipe 47 → each tip side forming pipe 34b, and the fertilizer h1 remaining in these flow paths by washing water is transferred to each tip side forming pipe 34b. While discharging further outside, the inside of these flow paths can be cleaned.

  At this time, the gripping portion 36a formed at the front end portion of each switching lever 36 is arranged so as to be positioned in front of the rear end portion 18a of the seat 18 at any operation position. When the operator operates each switching lever 36, the grip portion 36a of each switching lever 36 can be easily gripped with the left hand and easily operated to a required switching position.

  Moreover, as shown in FIGS. 3 and 4, the base end portion 34c of the distal end portion side forming pipe 34b is moved semicircularly forward and downward at a position behind the grip portion 36a of the switching lever 36 in the fertilization position (a). A non-interference space S can be formed at a position immediately before the base end portion 34c by curving in an arc shape and extending backward. In particular, the gripping portion 36a of the switching lever 36 is gripped and the cleaning position ( Even when the switching operation is performed in c), the operator's hand holding the holding portion 36a does not interfere with the base end portion 34c and the like so that the switching lever 36 can be operated smoothly.

  Further, the deep layer fertilizer 31 has the same basic structure as the above-mentioned side strip fertilizer 30 and is disposed at the right rear portion of the traveling unit 1, and the side strip fertilizer 30 is pasty fertilizer h1. However, the deep layer fertilizer 31 is different in that the paste-like fertilizer h2 is subjected to two-way fertilization.

  That is, as shown in FIG. 4 and FIG. 5, the deep layer fertilizer 31 includes a fertilizer tank 32 containing paste-like fertilizer h2 and a single tandem fertilizer continuously connected to the fertilizer tank 32. A pump 33, fertilizer pipes 34, 34 connected to the fertilizer pump 33, a switching valve 35 provided in the middle of these fertilizer pipes 34, 34, and a switching lever 36, 36 provided in the switching valve 35. The deep layer fertilizer 31 is attached to the vehicle body frame 4 via a fertilizer support frame 37.

  The constituent members of the deep layer fertilizer 31 are arranged symmetrically with the constituent members of the side strip fertilizer 30.

  Moreover, as shown in FIG.1 and FIG.2, the front-end | tip part 34e of each front-end | tip part side formation pipe 34b is connected to one of the two deep layer fertilizer application nozzles 50 and 50 provided in the planting part 2. As shown in FIG. ing.

  Thus, when each switching lever 36 is operated to the fertilization position (a), each base end side forming pipe 34a and tip end side forming pipe 34b communicate with each other via the switching valve body 35a, Paste fertilizer h2 is supplied to fertilizer tank 32 → supply pipe 41 → fertilization pump 33 → each base end side forming pipe 34a → each switching valve body 35a → each tip end side forming pipe 34b → each deep layer fertilizing nozzle 50 As shown in FIG. 6, each deep layer fertilizer application nozzle 50 is discharged into the deep layer portion of the field G to form the deep layer fertilizer strip H2.

  At this time, the gripping portion 36a formed at the front end portion of each switching lever 36 is arranged so as to be positioned in front of the rear end portion 18a of the seat 18 at any operation position. When the operator operates each switching lever 36, the grip portion 36a of each switching lever 36 can be easily gripped with the right hand and operated to a required switching position.

  In this embodiment, the upper side fertilizer body 30 is disposed at the left rear part of the traveling unit 1 and the deep layer fertilizer body 31 is disposed at the right rear part of the traveling unit 1. The body 30 can be arranged at the right rear part of the traveling unit 1, and the deep layer fertilizer 31 can be arranged at the left rear part of the traveling unit 1. Further, in the present embodiment, the switching valve 35 is disposed on the left side and the right side of the seat 18, respectively, but may be disposed on the rear side of the seat 18.

  The side strip fertilizer 30 and the deep layer fertilizer 31 configured as described above are interlocked and connected to the mission unit 8 via the fertilizer drive mechanism 55. Next, for the fertilizer drive mechanism 55, FIG. 3 to 5 will be described.

  That is, as shown in FIGS. 3 to 5, the fertilizer driving mechanism 55 has a bevel gear case 56 linked to the left front portion of the mission unit 8, and a fertilizer driving shaft extending rearward and upward from the bevel gear case 56. 57 is provided, and the front end portion of the transmission shaft 58 extending in the front-rear direction is linked to the fertilizer drive shaft 57, and the transmission shaft 58 is disposed in an inclined manner in the rear upper direction. The transmission mechanism 59 erected between the pair of left and right fertilizer support frames 37, 37 is interlocked and connected to the rear end of the fertilizer application pumps 33, 33 of the side strip fertilizer 30 and the deep layer portion. The fertilizer body 31 and the fertilizer pump 33 are connected to each other.

  As shown in FIG. 5, the transmission mechanism 59 includes a vertically long case 60 extending in the vertical direction and a horizontally long case 61 extending in the left and right direction to form a T-shaped transmission case 62 in the rear view. A transmission input shaft 63 whose axis is directed in the front-rear direction is provided at the lower portion of 60, and the rear end portion of the transmission shaft 58 is interlocked and connected to the transmission input shaft 63.

  In addition, a transmission output shaft 64 having an axial line directed in the front-rear direction is provided at the central portion of the horizontally long case 61 located directly above the transmission input shaft 63, and between the transmission output shaft 64 and the transmission input shaft 63. A transmission chain 65 extending in the vertical direction is wound through sprockets 66, 67, and a side strip fertilizer 30 disposed on the left side from the transmission output shaft 64 and a deep layer fertilizer 31 disposed on the right side. Each is configured to transmit power.

  That is, between the transmission output shaft 64 and the fertilizer pumps 33 and 33 of the side strip fertilizer 30, a transmission case 68 is disposed sideways, and the transmission output shaft 64 and the transmission case 68 are located rearward. A shift transmission chain 70 extending in the left-right direction is wound between the projecting shift input shaft 69 via sprockets 71 and 72, and the shift output shaft 73 projecting rearward from the shift case 68 and the right fertilizer Between the first input / output shaft 74 projecting rearward from the pump 33, a pump transmission chain 75 extending in the left-right direction is wound through sprockets 76, 77, and the first input / output shaft 74 and the right side are wound. A first interlocking chain 79 extending in the left-right direction is wound between the second input / output shaft 78 protruding rearward from the fertilizer application pump 33 via sprockets 80, 81, and the second input / output shaft No. 78 extending in the left-right direction between 78 and the third input / output shaft 82 projecting rearward from the left fertilizer pump 33 A third interlocking chain 83 is wound around the sprockets 84 and 85 and extends in the left-right direction between the third input / output shaft 82 and the input shaft 86 projecting rearward from the left fertilizer pump 33. An interlocking chain 87 is wound through sprockets 88 and 89. Reference numeral 90 denotes a speed change operation lever provided in the speed change case 68.

  In addition, a transmission case 68 is arranged vertically between the transmission output shaft 64 and the fertilizer pump 33 of the deep layer fertilizer 31 and protrudes rearward from the transmission output shaft 64 and the transmission case 68. A shift transmission chain 91 extending in the left-right direction is wound around the shift input shaft 69 via sprockets 92 and 72, and protrudes rearward from the shift case 68 and rearward from the fertilizer pump 33. A pump transmission chain 75 extending in the left-right direction is wound through sprockets 76 and 77 between the first input / output shaft 74 projecting to the rear and behind the first input / output shaft 74 and the fertilizer pump 33. A first interlocking chain 79 extending in the left-right direction is wound through sprockets 80 and 81 between the second input / output shaft 78 projecting toward the right.

  In this way, since the fertilizer pumps 33, 33, 33 and the transmission cases 68, 68 are arranged at substantially the same level in the left-right direction, the power is distributed to the left and right at a substantially central portion, The transmission mechanism 59 can be integrated in a compact manner, and the components of the transmission mechanism 59 can be easily maintained from behind by removing the transmission case 62.

  Next, the mounting structure of the opening / closing lid 40 will be described in detail with reference to FIGS.

  Here, in the conventional fertilizer tank, an open / close lid (not shown) formed in a cap shape is detachably attached to a cylindrical male screw portion 100 which is a cylindrical portion forming the fertilizer inlet 39 of the tank body 38. It is attached.

  That is, a female screw portion that is screwed onto the cylindrical male screw portion 100 is formed on the inner peripheral surface of the open / close lid, and the female screw portion of the open / close lid is screwed into the cylindrical male screw portion 100 and screwed. I am doing so.

  However, in the case of such an opening / closing lid, the paste-like fertilizer accommodated in the tank body may be spilled from the gap between the opening / closing lid and the cylindrical male screw portion 100 due to vibration of the airframe, etc. Although it is necessary to close the lid by screwing it tightly into the cylindrical male screw portion 100, there is a problem that when the opening / closing lid is opened, the opening / closing lid cannot be opened instantaneously.

  Therefore, in this embodiment, the opening / closing lid body is structured to be detachably attached to the existing tank body 38, and the opening / closing lid body can be opened instantly while ensuring good sealing performance when the lid is closed. An attachment structure is provided.

  That is, as shown in FIGS. 7 to 9, the opening / closing lid 40 is detachably attached to a cylindrical male screw portion 100 which is a cylindrical portion forming the fertilizer inlet 39 of the existing tank body 38. And a support body 101 that is detachably attached to the outer peripheral surface of the cylindrical male screw portion 100, and a lid body 102 that is detachably attached to the support body 101. F is a filter.

  As shown in FIG. 10, the support body 101 includes a ring-shaped support body piece 103 formed to have a diameter slightly smaller than the outer diameter of the cylindrical male screw portion 100, and both ends of the support body piece 103. The formed joining pieces 104 and 104, and a connecting bolt 105 and a nut 106, which are connecting members for connecting the joining pieces 104 and 104 in a joined state, are provided.

  Further, the ring-shaped support body piece 103 is formed of an elastic material, and a hook piece 107 as an engaged member is provided on the ring-shaped support body piece 103 at a position facing the joining pieces 104 and 104 by 180 degrees. A pair of engaging projections 108 and 108 projecting inwardly are formed at positions opposed to the hook pieces 107 by 90 degrees in the circumferential direction at positions opposed to 180 degrees.

  In this way, when attaching the support 101 to the outer peripheral surface of the cylindrical male screw portion 100, the joining pieces 104, 104 are separated from each other, and the ring-shaped support main piece 103 is attached to the outer diameter of the cylindrical male screw portion 100. The ring-shaped support body piece 103 is fitted to the outer periphery of the cylindrical male screw portion 100 by enlarging the diameter so that the diameter is slightly larger than that of the cylindrical male screw portion 100, and is engaged with the concave groove portion 109 of the cylindrical male screw portion 100. The joint pieces 108 and 108 are engaged with each other, the joint pieces 104 and 104 are joined to each other, and the outer peripheral surface of the cylindrical male screw part 100 is tightened by the ring-shaped support body piece 103 having an elastic biasing force. 104 and 104 are connected by a connecting bolt 105 and a nut 106.

  At this time, the support 101 is not only attached to the cylindrical male screw portion 100 in a tightened state, but also because the engaging convex portions 108 and 108 are engaged with the concave groove portion 109 of the cylindrical male screw portion 100, Even if it slides along the outer peripheral surface of the cylindrical male screw portion 100, it does not come off upward and can be easily and reliably attached to the cylindrical male screw portion 100.

  And the opening and closing direction of the lid body 102 is arbitrarily set by arbitrarily setting the position of the hook piece 107 of the support body 101 in the circumferential direction of the cylindrical male screw portion 100 regardless of the mounting direction of the fertilizer tank 32. You can choose.

  As shown in FIG. 10, the lid body 102 includes a lid piece 110 formed in a cap shape that can cover the upper surface of the cylindrical male screw portion 100, and a bifurcated projection that protrudes from the peripheral edge of the lid piece 110. -Shaped pivot pieces 111, 111, an arm pivot piece 112 projecting from the peripheral edge of the lid main piece 110 that is 180 degrees opposite to both pivot pieces 111, 111, and a proximal end of the arm pivot piece 112 via the pivot 113 An engagement / disengagement operation arm 114 that is an engagement / disengagement operation member that pivotally supports the engagement portion, an engagement ring 115 that is an engagement member attached to the middle portion of the engagement / disconnection operation arm 114, and an inner surface of the lid main piece 110 Packing P is provided.

  The packing P is formed in a ring shape so as to be in surface contact with the end surface of the cylindrical male screw portion 100 when the lid body 102 is closed.

  In this way, the lid body 102 is made by aligning the pivot holes 117 and 117 formed in the bifurcated pivot pieces 111 and 111 with the pivot holes 116 formed in the joint pieces 104 and 104 of the support 101, respectively. By inserting the pivot pin 118 into the pivot holes 116, 117, 117, the lid body 102 can be pivotally supported around the axis of the pivot pin 118.

  Then, in a state where the fertilizer input port 39 formed on the upper surface of the cylindrical male screw portion 100 is closed by the lid body 102, the engagement ring 115 is engaged with the hook piece 107 attached to the support body 101, and The engagement / disengagement operation arm 114 is rotated so that the engagement ring 115 can be pulled up and fixed in the direction of engagement with the hook piece 107.

  At this time, the packing P attached to the inner surface of the lid main body 102 comes into surface contact with the end surface of the cylindrical male screw portion 100 in a pressed state, and the fertilizer inlet 39 is sealed.

  Further, when the fertilizer inlet 39 formed on the upper surface of the cylindrical male screw portion 100 is opened by the lid body 102, the lid is instantaneously operated by operating the engagement / disengagement operation arm 114 in the opposite direction to the above procedure. The main body 102 can be opened, and a fertilizer replenishment operation, which is a subsequent operation, can be performed quickly.

  As shown in FIGS. 1 and 2, the planting unit 2 includes a planting mission case 120, planting transmission cases 121, 121 linked to the left and right sides of the planting mission case 120, and each planting transmission case 121. A rotary case 122 interlocked to the rear part, claw cases 123, 123 interlocked to each rotary case 122, planting claws 124, 124 attached to each claw case 123, 123, and above the pair of left and right planting transmission cases 121, 121 The four-row planting seedling stand 127 supported so as to be slidable in the left-right reciprocating manner via the guide rail 125 and the lower rail 126, and the planting-unit-side link coupling body 128 for coupling to the elevating coupling mechanism 3 described later. It is possible to continuously perform the seedling planting work of Shijo. 136 is a center float and 137 is a side float.

  At this time, as shown in FIG. 2 and FIG. 6, the above-mentioned side strip fertilized strip H1 is formed close to the side strip of the seedling N to be planted in the field G by each planting claw 124, and the deep layer The partial fertilizer strip H2 is formed in the middle of the lateral strip fertilizer strips H1 and H1 adjacent in the left-right direction and in the deep layer portion.

  The elevating connection mechanism 3 includes a top link 131 and a pair of left and right lower links 132 and 132 interposed between a traveling unit side link connector 130 and a planting unit side link connector 128 provided at the rear of the vehicle body frame 4. An elevating hydraulic cylinder 134 is interposed between the cylinder coupling body 133 provided between the lower links 132 and 132 and the transmission unit 8, and the elevating hydraulic cylinder 134 is expanded and contracted to plant through the elevating coupling mechanism 3. The attachment part 2 can be moved up and down. Reference numeral 135 denotes a planting transmission shaft interposed between the mission unit 8 and the planting mission case 120.

The side view of the riding rice transplanter which comprises the fertilizer application which concerns on this invention. Plane explanatory drawing of the passenger rice transplanter. The side view of a fertilizer application. The top view of the fertilizer application equipment. The rear view of the fertilizer application equipment. The II sectional view taken on the line of FIG. The side view of an opening-and-closing lid. The partially cutaway front view of the opening-and-closing lid. The side view of the open state of the opening-and-closing lid. Sectional plane explanatory drawing of the opening-and-closing lid.

Explanation of symbols

A Passenger rice transplanter M Fertilizer 1 Traveling part 2 Planting part 3 Lifting connection mechanism 4 Body frame 5 Motor part 6 Driving part

Claims (2)

In the riding rice transplanter where a fertilizer tank is arranged in the traveling part and the fertilizer inlet of the fertilizer tank can be opened and closed by the lid body,
A riding rice transplanter characterized in that the lid body is pivotally supported on a pivot pin provided at a fertilizer inlet and is closed by an engagement / disengagement operation member provided on the lid body.   The riding rice transplanter according to claim 1, wherein a packing is attached to an inner surface of the lid body, and the packing is brought into surface contact with an end surface of the fertilizer inlet in a pressed state so as to seal the fertilizer inlet. .

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