JP5981374B2 - Fertilizer applicator - Google Patents

Description

  The present invention relates to a fertilizer applicator, and more particularly to a fertilizer applicator that prevents the fertilizer from getting wet in the rain when the fertilizer is replenished to a fertilizer applicator.

  Conventionally, there exists what was disclosed by patent document 1 as one form of a fertilizer applicator. That is, in Patent Document 1, a plurality of fertilizer hoppers are disposed in the left-right direction at the rear portion of the traveling unit, a rail is disposed immediately in front of the fertilizer hopper, and a fertilizer mount is directly attached to the rail. A structure is disclosed in which it is attached to be movable in the left-right direction at an upper position. In Patent Document 1, the open / close lid of the fertilizer hopper is opened to open the upper surface of the hopper body, and in this open state, the fertilizer bag is placed on the fertilizer mount, and one side edge of the fertilizer bag is removed. The fertilizer can be easily replenished by opening the notch and appropriately moving in the left-right direction at a position directly above the hopper body.

  Moreover, there exists what was disclosed by patent document 2 as one form of a fertilizer applicator. That is, in Patent Document 2, a plurality of fertilizer hoppers are disposed in the left-right direction at the rear portion of the traveling unit, and a driver's seat is disposed immediately in front of the fertilizer hoppers. The driver's seat includes a seat part that is slidable in the left-right direction, and a backrest part attached to the rear part of the seat part. A structure that can be freely changed to a state in which the rear part stands up is disclosed. In Patent Document 2, the backrest is in a lying position with the backrest lying forward, a fertilizer bag is placed on the back of the backrest, the open / close lid of the fertilizer hopper is opened, and the upper surface of the hopper body is opened Thus, the upper end edge of the fertilizer bag is cut open, and the fertilizer can be easily replenished to the opening of the hopper body. At this time, the seat is appropriately moved in the left-right direction.

  Moreover, there exists what was disclosed by patent document 3 as one form of a fertilizer applicator. That is, in Patent Document 3, a guide rail extending in the left-right direction is provided behind the fertilizer hopper, and the mounting table is attached to the guide rail so as to be movable in the left-right direction via a support rod. It is possible to change the posture between the non-acting posture and the horizontal fertilizer supply posture, and a refractive link is interposed between the support rod and the mounting table, and the mounting table with the refractive link in the horizontal fertilizer supply posture is changed to that posture. A structure intended to be maintained is disclosed. Further, the opening / closing lid can be held in an inclined posture in which a part of the opening of the hopper body is opened. With this configuration, in Patent Document 3, the opening / closing lid is held in an inclined posture in which the opening of the hopper body is partially opened, and the upper end is opened on the mounting table in the same state. The fertilizer bag is placed, and the placing table maintained in the lateral fertilizer supply posture by the refractive link is moved in the lateral direction so that the fertilizer can be replenished in each hopper body.

JP-A-10-304720 Japanese Patent Laid-Open No. 11-56051 JP-A-5-316818

  In the above-mentioned Patent Documents 1 and 2, a fertilizer replenishment work is provided because a fertilizer mounting table and a driver's seat are provided as auxiliary means that can place a relatively heavy fertilizer bag movably in the left-right direction. However, at the time of such fertilizer replenishment work, it is necessary to fully open the opening / closing lid to open the upper surface opening of the hopper main body. That is, in patent document 1, in order to move a fertilizer mounting stand in the left-right direction in the position right above the hopper main body by which the upper surface opening part was opened, it is necessary to open the upper surface opening part of a hopper main body largely. . Moreover, in patent document 2, since there exists a trouble that an operator has to support an opening-and-closing lid body in the open state only by a required amount, holding the notch opening part of a fertilizer bag, the upper surface opening part of a hopper main body is used. There is a need to keep it open. As a result, in Patent Documents 1 and 2 where the open / close lid needs to be fully opened, there is a problem that rain enters the hopper body and the fertilizer gets wet when it rains.

  Further, in Patent Document 3, the opening / closing lid is opened only to a part which is the minimum necessary, but it is necessary to open the opening / closing lid in advance although it is a part, Also in this case, there is a problem that rain enters the hopper body and the fertilizer gets wet when it rains.

  Therefore, the present invention provides a fertilizer applicator that makes it difficult for the fertilizer to get wet in the rain by replenishing the opening / closing lid body by opening the lid just before replenishment by the minimum opening amount necessary for replenishing the fertilizer. Objective.

The fertilizer applicator according to the first aspect of the present invention is a fertilizer applicator in which a fertilizer applicator including a fertilizer hopper is mounted on a traveling device having a planting device connected to the rear, and the fertilizer hopper has an opening on the upper surface thereof. An opening / closing lid that opens and closes the unit is pivotally attached to the fertilizer hopper, and a support body that supports the fertilizer bag is disposed in the vicinity of the fertilizer hopper. The operation in which the fertilizer bag is raised and rotated through the support to the position where the fertilizer can flow out from the outlet to the opening of the hopper body is linked to the operation in which the opening and closing lid is rotated and opened. It is characterized by.

  In such a fertilizer applicator, when the fertilizer bag is lifted and rotated through the support to a position where the fertilizer can flow out from the fertilizer outlet to the opening of the hopper body, the opening / closing lid is rotated and opened in conjunction therewith. Covered. That is, the fertilizer can be replenished in the hopper body by opening the opening / closing lid immediately before replenishment. As a result, when fertilizer is replenished, it is possible to prevent the fertilizer released from the fertilizer bag or the fertilizer replenished in the hopper body from getting wet in the rain. And since the fertilizer bag is supported by the support body, the replenishment operation | work of a fertilizer can be performed easily.

  The fertilizer applicator according to claim 2 is the fertilizer applicator according to claim 1, wherein the fertilizer is turned up to a position where the fertilizer can flow out from the fertilizer outlet of the fertilizer bag to the opening of the hopper body. When the opening of the hopper body is partially opened by the opening / closing lid, the opening / closing lid is formed so as to block the entire surface of the opening of the hopper body in plan view. It is characterized by that.

  In such a fertilizer applicator, when the opening of the hopper body is partially opened by the opening / closing lid, the opening / closing lid is formed so as to close the entire opening of the hopper body in plan view. At the time of fertilizer replenishment, the fertilizer released from the fertilizer bag or the fertilizer replenished in the hopper body can be made more difficult to get wet in the rain.

  A fertilizer applicator according to the invention described in claim 3 is the fertilizer applicator according to claim 1 or 2, wherein the upper edge of the support is attached to the side wall of the hopper body so as to be rotatable about a horizontal axis. Thus, an interlocking link is interposed between the middle part of the side edge of the support body and the support arm projecting from the free end side part of the opening / closing lid body, so that the opening / closing lid body can be rotated in the ascending and turning operation of the support body. It is characterized in that the moving lid operation is interlocked.

  In such a fertilizer applicator, the opening / closing operation of the opening / closing lid body can be interlocked with the upward rotation operation of the support body via the interlocking link. The fertilizer can be steadily replenished in the opened hopper body, and the fertilizer replenishment work efficiency can be improved.

  A fertilizer applicator according to the invention described in claim 4 is the fertilizer applicator according to any one of claims 1 to 3, wherein the cutting guide is provided along the free edge of the opening / closing lid. In addition, the fertilizer outlet is cut out in the fertilizer bag by sliding the cutting tool along the cutting guide body.

  With this fertilizer applicator, the fertilizer outlet can be easily and steadily opened in the fertilizer bag simply by sliding the cutting tool along the cutting guide body. Can be improved.

  A fertilizer applicator according to the invention described in claim 5 is the fertilizer applicator according to claim 4, wherein the fertilizer bag rises through the support to a position where the fertilizer can flow out to the opening of the hopper body. When rotated, the fertilizer outlet of the fertilizer bag is arranged at the lowest position of the fertilizer bag.

  In such a fertilizer applicator, when the fertilizer bag is lifted and rotated through the support to a position where the fertilizer can flow out to the opening of the hopper body, the fertilizer outlet of the fertilizer bag is disposed at the lowest position of the fertilizer bag. Therefore, the fertilizer can be prevented from remaining around the fertilizer outlet. Therefore, troublesome troubles such as scraping out the residual fertilizer in the fertilizer bag can be eliminated.

  According to the present invention, it is possible to prevent the fertilizer from getting wet in the rain by opening and closing the opening / closing lid immediately before the replenishment. And since the fertilizer bag is supported by the support body, the replenishment operation | work of a fertilizer can be performed easily.

The side view of the riding rice transplanter equipped with the fertilizer application which concerns on this invention. The enlarged side view of the fertilizer application concerning the present invention. The enlarged front view of the fertilizer application concerning the present invention. The enlarged plan view of the one side half part of the fertilizer application apparatus which concerns on this invention. The expansion explanatory drawing of the fertilizer application concerning the present invention. Explanatory drawing of fertilizer supply work. The expanded side view of the support structure of the support body as other embodiment. The enlarged front view of the support structure of the support body as other embodiment. FIG. 9 is a cross-sectional view taken along the line II of FIG.

  A shown in FIG. 1 is a riding rice transplanter equipped with a fertilizer application device M according to the present invention as one form of a fertilizer applicator. Below, after explaining riding rice transplanter A, it explains in full detail about fertilizer application M concerning the present invention.

[Rideway rice transplanter A]
As shown in FIG. 1, the riding rice transplanter A has a planting device 3 attached to a rear side of a traveling device 1 as a towing vehicle via a lifting mechanism 2 so as to be lifted and lowered. The riding rice transplanter A can perform a plurality of (six in this embodiment) planting operations.

[Running device 1]
As shown in FIG. 1, the traveling device 1 is configured by mounting an upper body 12 on a lower body 11. The lower body 11 has front axle cases 17 and 17 extending outwardly from the left and right side front portions of the transmission case 16, and front axles 18 and 18 are disposed at outer end portions of the front axle cases 17 and 17. A pair of left and right front wheels 19, 19 are attached to the left and right outer ends of the rear axle case 20, and a pair of left and right rear wheels 22, 22 are attached via rear axles 21, 21, so that the rear part of the transmission case 16 and the rear axle are attached. A connecting frame 23 extending in the front-rear direction is formed between the center portion of the case 20 in a horizontal manner. Here, the connection frame 23 has a square cross section and is formed into a pipe shape extending straight in the front-rear direction, and a motor unit including the engine 15 and the like is mounted on the connection frame 23.

  Further, transmission is provided via pulleys 28 and 29 between an output shaft 26 projecting outward from the left front portion of the engine 15 and an input shaft 27 projecting outward from the left rear portion of the mission case 16. The belt 30 is wound.

  A transmission shaft (not shown) extending in the front-rear direction is interposed between the rear portion of the transmission case 16 and the right front portion of the rear axle case 20. Reference numeral 34 shown in FIG. 1 denotes a second power take-out shaft that outputs power to the planting device 3. 3 denotes a first power take-off shaft that transmits power to the fertilizer application apparatus M.

  With this configuration, power is transmitted to the engine 15 → the output shaft 26 → the pulley 28 → the transmission belt 30 → the pulley 29 → the input shaft 27 → the transmission case 16. The transmission power is transmitted to the transmission case 16 → the front axle cases 17 and 17 → the front axles 18 and 18 → the pair of left and right front wheels 19 and 19, and the transmission case 16 → the transmission shaft → the rear axle case 20 → the rear axles 21 and 21. → Power is transmitted to the pair of left and right rear wheels 22,22. Further, power is transmitted from the engine 15 to the fertilizer application device M via the first power take-off shaft 36 (see FIG. 3). Further, power is transmitted from the engine 15 to the planting device 3 via the second power take-out shaft 34.

  As shown in FIG. 1, the upper body 12 has a vehicle body cover body 42 stretched over the lower body 11 in a covering shape. A handle column 45 is erected on the front portion of the vehicle body cover body 42, and a handle 46 is attached to the upper end surface portion of the handle column 45. A seat 47 is placed behind the handle 46. The seat 47 is formed of a seat portion 47a and a backrest portion 47b, and the lower surface front end portion of the seat portion 47a is pivotally supported in the middle portion of the vehicle body cover body 42 via a pivot bracket 48. At the rear part of the vehicle body cover body 42, a fertilizer application device M is disposed immediately behind the seat 47.

The seat 47 is configured as described above, and is rotated in the front-rear direction around the pivot portion of the pivot bracket 48 so that the operator can be seated (shown by a solid line in FIG. 1). The posture can be freely changed to an unusable unused posture (indicated by an imaginary line in FIG. 1). Then, by changing the posture of the seat 47 to the non-use posture, the position immediately before the fertilizer application M is widely opened so that replenishment work to the fertilizer hopper 76 of the fertilizer application M described later can be performed smoothly.
[Planting device 3]
As shown in FIG. 1, the planting device 3 extends a planting center case 51 from the planting mission case 50 toward the rear. And the front part of the planting side cases 53, 53 extending in the front-rear direction is connected to the left and right side parts of the planting mission case 50 via cylindrical connection cases 52, 52 extending in the left-right direction, respectively. ing. The planting center case 51 and the planting side cases 53, 53 are arranged in parallel with a certain interval in the left-right direction, and the front part of the planting center case 51 and the front part of each planting side case 53, 53 These cases 51, 53, 53 are interlocked and connected via an interlocking shaft 54, 54. Planting claws (not shown) are attached to left and right rear portions of the cases 51, 53, 53 via a pair of left and right rotary cases (not shown). On these cases 51, 53, 53, through a seedling stage support frame 57, a seedling stage 58 is supported so as to be slidable back and forth in the left-right direction in a front and rear inclined posture. A lateral feed mechanism 59 for reciprocating and laterally sliding (transverse feed) the seedling stage 58 is disposed on the front side (lower side) of the seedling stage 58, and the seedling stage 58 is attached to the lateral feed mechanism 59. Linked together. Six seedling mats can be placed on the seedling stage 58. The planting mission case 50 has an input shaft 55 projecting forward. The input shaft 55 is detachably linked to the second power take-off shaft 34 provided in the traveling device 1 via a planting transmission shaft 60. A center float 61 is disposed below the planting center case 51, and side floats 62 and 62 are disposed below the respective planting side cases 53 and 53.
[Elevating mechanism 2]
The lifting mechanism 2 includes a lifting link 63, a lifting cylinder (not shown), and a rolling cylinder (not shown). In this manner, the planting device 3 is connected to the rear of the traveling device 1 by the lifting mechanism 2 so as to be capable of rolling and lifting up and down around the longitudinal axis.

In the riding rice transplanter A configured as described above, it is possible to perform seedling planting work for six strips while traveling in the field.
[Fertilizer M]
As shown in FIG. 1, the fertilizer application device M is positioned immediately behind the seat 47 and disposed at the rear portion of the vehicle body cover body 42. As shown in FIGS. 2 and 3, the fertilizer application device M includes a plurality (6 in the present embodiment) of the support frame portion 70 extending in one direction (the left-right direction in the present embodiment) along the extending direction. A plurality of (six in this embodiment) hopper main bodies 73 are connected to the upper end opening of each of the feeding portions 72, respectively, while the lower end opening of each of the feeding portions 72 is connected to the lower end opening of each feeding portion 72. A plurality (six in this embodiment) of fertilization hose portions 74 are connected in communication. Further, the three hopper bodies 73 on the left half side are integrally connected in the left-right direction, and the openings 77 on the upper surfaces of the three hopper bodies 73 are opened and closed by a single left-side opening / closing lid 75. The left fertilization hopper 76 is formed. On the other hand, the three hopper bodies 73 on the right half side are integrally connected in the left-right direction, and the opening portions 77 on the upper surfaces of the three hopper bodies 73 are opened and closed by a single right opening / closing lid body 75. Thus, a right fertilization hopper 76 is formed.

  The support frame portion 70 is formed by facing a pair of left and right plate-like attachment bodies 81, 81, and forming a pair of front and rear upper frames that extend straight in the left-right direction between the upper front and rear portions of both attachment bodies 81, 81. The bodies 82 and 83 are horizontally mounted, and a lower frame forming body 84 extending in a straight line in the left-right direction is horizontally mounted between the lower portions of the attachment bodies 81 and 81 to form a frame. Reference numeral 85 denotes a reinforcing body. Moreover, between the lower parts of both the attachment bodies 81 and 81, the cylindrical pressure ventilation duct 86 extended straightly in the left-right direction is installed horizontally. A pressure air supply unit (not shown) is attached to the left end of the pressure air duct 86.

  A plurality of (six in this embodiment) feed portions 72 supported in a state adjacent to the support frame portion 70 in the left-right direction are horizontally extended with a feed shaft 87 extending in the left-right direction so that the feed shaft A feeding mechanism (not shown) disposed in each feeding portion 72 is linked to 87. An upper end portion (terminal portion) of the first power take-off shaft 36 is interlocked and connected to the center portion of the feed shaft 87 via a gear case 88.

  In this manner, in the fertilizer application device M, the granular fertilizer accommodated in the hopper body 73 is fed out to the fertilizer hose portion 74 by a certain amount by each feeding mechanism. The fertilizer that is intermittently fed to the base of the fertilizer hose part 74 is pumped by the pressurized air supply part through the pressure air duct 86, and the fertilizer is planted on each seedling planting line through the fertilizer hose part 74. Fertilizer is applied in the vicinity of the seedlings.

  In the fertilizer application device M configured as described above, as shown in FIG. 5, a support body 100 that supports the fertilizer bag F is disposed in the vicinity of the fertilizer hopper 76 so as to be rotatable in a reverse manner. The fertilizer bag F is opened at the fertilizer outlet f, and the fertilizer bag F rises through the support body 100 to a position where the fertilizer H can flow out from the fertilizer outlet f to the opening 77 of the hopper body 73. The fertilizer outlet f is directed to the opening 77 of the hopper main body 73 that is partially opened, in conjunction with the movement of the movement, and the opening and closing operation of the opening / closing lid 75 is interlocked. Yes. Hereinafter, such a configuration will be specifically described.

The hopper body 73 includes an upper forming body 90 formed in a rectangular tube shape having upper and lower surfaces opened, and a lower forming body 91 formed in a funnel shape by gradually reducing the diameter downward from the lower end edge of the upper forming body 90. Forming. Then, the side walls of the upper forming bodies 90 of the three hopper main bodies 73 are continuously provided in a state where they are in surface contact in the left-right width direction. Moreover, the single opening / closing lid body 75 which opens and closes the opening part of the upper surface of the three hopper main bodies 73 is formed in the cap shape which is horizontally long and flat in the left-right direction, as shown in FIGS. A rear edge 75a is pivotally connected to upper portions of the rear walls of the three hopper bodies 73 via a pivotal support body 92 such as a hinge so as to be opened and closed (rotated). The front edge of the opening / closing lid 75 extends forward from the front wall of the hopper body 73 by a certain width W (see FIG. 4) to form a flange 75b. In this case, the tip edge portion of the flange portion 75b formed by extending forward by a certain width W and the front wall upper edge portion of the hopper main body 73 are arranged on the virtually identical vertical plane K shown in FIG. The opening / closing lid 75 is formed so as to close the entire surface of the opening 77 of the hopper body 73 in plan view. The hopper body 73 and the opening / closing lid body 75 are formed of a lightweight, hard material and high-stiffness synthetic resin (for example, polypropylene) so as to function as a strength member that holds the support body 100 firmly. Next, the configuration of the support 100 will be described.

[Description of Configuration of Support 100]
The support body 100 is formed so that a fertilizer bag F containing the fertilizer H can be placed, and is attached to the left and right fertilization hoppers 76 and 76 respectively. The posture can be changed between

  That is, as shown in FIGS. 2 to 4, the support body 100 has a rectangular plate-like second support piece via a pivotal piece 103 such as a hinge at the tip edge portion of the square plate-like first support piece 101. The base end edge of 102 is pivotally connected. And the 2nd support piece 102 is the storage (non-use) attitude | position (it shows with an imaginary line in FIG. The posture can be changed to a use posture (shown by a solid line in FIG. 2) developed in a state of extending at a right angle. Reference numeral 104 denotes a holding piece for holding the second support piece 102 in a use posture.

  The first support piece 101 is slightly narrower in width than the left and right widths of the three hopper main bodies 73, and the vertical width is from the position of the upper edge of the hopper main body 73 to the position of the lower end of the fertilizer hose part 74. The fertilizer bag F is formed in a horizontally long state in the mounting surface of the first support piece 101 by being formed in a rectangular plate shape slightly narrower than the vertical width.

  The second support piece 102 is formed in a rectangular plate shape having the same left and right width as that of the first support piece 101 and having a substantially half vertical length, and the end face of the fertilizer bag F is placed on the mounting surface of the second support piece 102. It can be placed.

  The base end portion of the holding belt 105 is connected to the middle portion of the right end edge portion of the first support piece 101, and the holding belt is attached to the locking piece 106 provided in the middle portion of the left end edge portion of the first support piece 101. One of the plurality of locking holes 107 formed at the front end portion of 105 is appropriately detachably locked. That is, the holding belt 105 can be bridged horizontally at the position of the upper end of the second support piece 102 in the stowed (unused) position between the left and right edge portions of the first support piece 101. ing.

  Therefore, the fertilizer bag F is placed on the second support piece 102 in the use posture in a horizontally long shape, and the holding belt 105 is bridged in the middle of the fertilizer bag F in the same state, so that the fertilizer bag F Can be held on the support body 100, and the fertilizer bag F is prevented from being deformed into a lower bulging shape due to the fluidity of the granular fertilizer H accommodated therein, and the fertilizer bag F is held in a predetermined shape. Can be made. In addition, the second support piece 102 is held in the storage (non-use) posture by laying the holding belt 105 horizontally on the upper end position of the second support piece 102 in the storage (non-use) posture. Can do.

  A left pivot support piece 110 is projected forward on the left upper part of the front wall of the left hopper body 73 forming the fertilizer hopper 76, and the right pivot on the right upper part of the front wall of the right hopper body 73. The support protrusion 111 protrudes forward. A proximal edge portion of the first support piece 101 is disposed between the distal end portions of the pivot support protrusions 110 and 111, and the first support piece 101 is interposed between the pivot support protrusions 110 and 111 via a pivot 112 extending in the left-right direction. 1 The base end edge of the support piece 101 is pivotally supported.

  A pair of left and right lid-side arm pieces 113, 113 project forward from the front part of the left and right side end surface portions of the flange 75 b formed on the opening / closing lid 75. On the other hand, a pair of left and right support piece side arm pieces 114, 114 project outwardly from the middle of the left and right side edge portions of the first support piece 101. Then, the upper end portion of the interlocking link 115 extending in the vertical direction is pivotally connected to the distal end portion of the lid-side arm piece 113 via the pivotal connection pin 116, and the distal end portion of the support-side arm piece 114 and the interlocking link 115 are connected to each other. The lower end portion is pivotally connected so that the rotation opening operation of the opening / closing lid body 75 is interlocked with the upward rotation operation of the support body 100. Therefore, the fertilizer H can be steadily replenished into the hopper body 73 that is opened with the support body 100 only by raising and rotating the support body 100, and the replenishment work efficiency of the fertilizer H can be improved.

  A cutting guide body 120 is provided on the front end edge portion of the collar portion 75b so as to protrude forward along the edge portion. The cutting guide body 120 is formed in a planar portal shape having substantially the same lateral width as the left and right widths of the three hopper main bodies 73, and the left and right sides of the front end edge surface of the collar portion 75 b and the inner peripheral surface of the cutting guide body 120 are left and right. A narrow cutting tool insertion hole 121 extending in the direction is formed.

  By configuring in this way, a cutting tool (not shown) such as a cutter is inserted into the cutting tool insertion hole 121 from above, and the cutting tool is slid along the cutting guide body 120, thereby supporting the support 100. A straight fertilizer outlet f can be opened in an orderly manner in the left-right direction on the upper end surface of the fertilizer bag F placed thereon. At this time, as shown in FIG. 5, the fertilizer outlet f is at a position where the fertilizer bag F is turned up through the support body 100 to a position where the fertilizer H can flow out to the opening 77 of the hopper body 73. The fertilizer bag F is arranged at the lowest position. That is, the fertilizer outlet f is formed at the upper edge of the rear surface of the fertilizer bag F facing the first support piece 101 so that the fertilizer H does not remain at the peripheral edge of the fertilizer outlet f. ing.

  As shown in FIG. 5, a fertilizer guide sheet 122 is disposed between the first support piece 101 and the hopper body 73. That is, the fertilizer guide sheet 122 is formed into a quadrangular sheet shape having a left-right width substantially the same as the left-right width of the opening 77 of each hopper body 73 by an elastic material, and is formed in the left-right direction on the front upper portion of the first support piece 101. The front edge portions of the three fertilizer guide sheets 122 are attached in parallel. And the second half part of each fertilizer guide sheet 122 is arranged along the inner surface of the front wall of each hopper main body 73 and depending on the inside. With this configuration, the fertilizer H flowing out from the fertilizer outlet f of the fertilizer bag F slides on the upper surface of the fertilizer guide sheet 122 and is steadily supplied into the hopper body 73 from the opening 77. . That is, by covering the gap formed between the first support piece 101 and the hopper body 73 from above with the fertilizer guide sheet 122, the fertilizer H that has flowed out from the fertilizer outlet f of the fertilizer bag F is removed from the gap. Leaking out of the hopper body 73 is prevented.

  The present embodiment is configured as described above. Next, a replenishment operation of the fertilizer H to the fertilizer hopper 76 will be described with reference to FIG. Here, the seat 47 is rotated forward about the pivotal support in advance, and the posture is changed to a non-use posture (indicated by an imaginary line in FIG. 1) in which the operator cannot be seated. The direction is opened widely so that the replenishment work to the fertilizer hopper 76 of the fertilizer applying apparatus M can be performed smoothly.

  (1) As shown in FIG. 6A, at the position where the first support piece 101 of the support body 100 is hung downward, the holding belt 105 is released and the second support piece 102 is stored. Change posture from posture to use posture. Subsequently, the fertilizer bag F is placed on the second support piece 102 in a horizontally long shape and the fertilizer bag F is held on the support body 100 by spanning the holding belt 105. In this state, a cutting tool such as a cutter is inserted into the cutting tool insertion hole 121 from above, and the cutting tool is moved along the cutting guide body 120 from one side end to the other side end in the cutting tool insertion hole 121. By sliding, a straight fertilizer outlet f is opened in the left-right direction at the upper end surface of the fertilizer bag F placed on the support 100. At this time, since the fertilizer outlet f can be easily and steadily opened in the fertilizer bag F, the efficiency of supplying fertilizer H can be improved also in this respect. Moreover, since the fertilizer outlet f of the fertilizer bag F is arrange | positioned in the lowest position of the fertilizer bag F, it can prevent that the fertilizer H remains around the fertilizer outlet f. Therefore, troublesome work such as scraping out the remaining fertilizer in the fertilizer bag F can be eliminated.

  (2) As shown in FIG. 6 (b), the distal end edge is lifted upward with the base end edge of the support 100 as the center. At this time, as the support body 100 is lifted upward, the flange 75b of the opening / closing lid body 75 is pushed upward via the interlocking link 115, and the opening / closing lid body 75 is gradually opened. That is, the amount of opening of the opening / closing lid 75 is proportional to the amount of lifting of the support 100.

  (3) As shown in FIG. 6 (c), the opening / closing lid 75 is pivoted in conjunction with the upward lifting operation of the support body 100 to partially open the opening, and the opening of the hopper body 73. The fertilizer outlet f can be directed to 77. Then, at a position where the fertilizer H naturally starts to flow from the fertilizer outlet f of the fertilizer bag F placed on the support body 100 and flows down, the upper surface of the fertilizer bag F has the flange portion 75b of the opening / closing lid body 75b. The leading edge is located, and the leading edge of the flange 75b is located immediately above the front wall upper edge of the hopper body 73. That is, the front edge of the flange 75b and the upper edge of the front wall of the hopper body 73 are arranged on the virtually same vertical plane K, and the opening / closing lid 75 is the entire surface of the opening 77 of the hopper body 73 in plan view. Occlude.

  Thus, since the opening / closing lid 75 can be opened just before replenishment by the minimum opening amount necessary for replenishment of the fertilizer H, the fertilizer H can be replenished in the hopper body 73. The fertilizer H released from F or the fertilizer H replenished in the hopper body 73 is difficult to get wet in the rain. And since the fertilizer bag F is supported by the support body 100, the replenishment operation | work of the fertilizer H can be performed easily.

  (4) As shown in FIG. 6D, the fertilizer H can be quickly replenished into the hopper body 73 by jumping the support body 100 greatly upward in the fine weather than in the rainy weather.

[Description of Other Embodiment of Structure for Supporting Support]
Next, another embodiment of a structure for supporting the support 100 will be described with reference to FIGS.

  That is, in this other embodiment, as shown in FIGS. 7 to 9, a pair of left and right rising arms 123, 123 are placed along the front wall of the hopper body 73 from the upper frame forming body 82 on the front side of the support frame portion 70. Are standing upright. The pair of left and right raising arms 123 and 123 are arranged on the front side of the fertilizer hopper so as to be wider than the left and right width of the support body 100 and with a width narrower than the lateral width of the fertilizer hopper. And the upper end of the raising arms 123 and 123 is arrange | positioned in the directly downward position of the collar part 75b. Reference numeral 124 denotes a connection reinforcing piece that connects the middle portions of the rising arms 123 and 123.

  A base edge portion of the first support piece 101 is disposed between the upper end portions of the rising arms 123 and 123, and the first support piece 101 is disposed between the upper end portions of the rising arms 123 and 123 via the pivot 112 extending in the left-right direction. 1 The base end edge of the support piece 101 is pivotally supported.

  A pair of left and right lid-side arm pieces 113, 113 project forward from the front part of the left and right side end surface portions of the flange 75 b formed on the opening / closing lid 75. On the other hand, a pair of left and right support piece side arm pieces 114, 114 project outwardly from the middle of the left and right side edge portions of the first support piece 101. Further, interference avoidance bending portions 125 and 125 for avoiding interference with the rising arms 123 and 123 are formed in the middle portions of the respective support piece side arm pieces 114 and 114. Further, the upper and lower end portions of the interlocking link 115 extending in the vertical direction are pivotally connected between the distal end portion of the lid side arm piece 113 and the distal end portion of the support side arm piece 114, respectively.

  Thus, without supporting the support body 100 directly on the hopper body 73, the support body 100 is supported by the pair of left and right rising arms 123, 123 that stand up from the upper frame forming body 82 on the front side of the support frame portion 70. Therefore, there is no need to hold the hopper body 73 rigid or to function as a strength member of the hopper body 73. That is, the support strength of the support body 100 can be improved.

A Riding rice transplanter M Fertilizer F Fertilizer bag H Fertilizer f Fertilizer outlet 1 Traveling device 2 Lifting device 3 Planting device 70 Support frame portion 72 Feeding portion 73 Hopper body 74 Fertilizer hose portion 77 Opening portion 100 Support body 105 Holding belt

Claims (5)

It is a fertilizer applicator in which a fertilizer application device equipped with a fertilizer hopper is mounted on a traveling device connected to a rear planting device,
The fertilizer hopper is formed by pivotably attaching an open / close lid body that opens and closes the opening on the upper surface of the hopper body, and a support body for supporting the fertilizer bag is disposed in the vicinity of the fertilizer hopper.
The fertilizer bag opens the fertilizer outlet, and the opening / closing lid is moved to the position where the fertilizer bag can be lifted and rotated through the support from the fertilizer outlet to the position where the fertilizer can flow out to the opening of the hopper body. A fertilizer applicator characterized in that the operation of rotating and opening the lid is interlocked. A state where the opening of the hopper body is partially opened by the opening / closing lid in conjunction with the upward rotation of the fertilizer bag from the fertilizer outlet to the position where the fertilizer can flow out to the opening of the hopper body. In
2. The fertilizer applicator according to claim 1, wherein the opening / closing lid is formed so as to close the entire opening of the hopper body in plan view.   The upper edge of the support body is attached to the side wall of the hopper body so as to be rotatable around a horizontal axis, and the arm piece projecting in the middle of the side edge of the support body and the free end side section of the opening / closing lid body are projected. The interlocking link is provided between the arm piece and the upward and downward rotation operation of the support body is interlocked with the rotational opening and closing operation of the opening / closing lid body. Fertilizer applicator.   A cutting guide body is provided along the free edge of the opening / closing lid, and the fertilizer outlet is cut out in the fertilizer bag by sliding the cutting tool along the cutting guide body. The fertilizer applicator according to any one of claims 1 to 3.   When the fertilizer bag is lifted and rotated through the support to the position where the fertilizer can flow out to the opening of the hopper body, the fertilizer outlet of the fertilizer bag is arranged at the lowest position of the fertilizer bag The fertilizer applicator according to claim 4.

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