JP3986037B2 - Rice transplanter with fertilizer application - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a structure of a rice transplanter equipped with a fertilizer application device for supplying fertilizer to the side of a seedling planting strip by a seedling planting device arranged at the rear part of a traveling machine body.
[0002]
[Prior art]
  As a structure for collecting the residual fertilizer in this type of fertilizer application, for example, in the one disclosed in Japanese Patent Laid-Open No. 10-215622, it is possible to replenish the granular fertilizer from the step behind the driver's seat of the traveling machine body. A laterally long fertilizer storage hopper, a feeding section for feeding out the granular fertilizer from the fertilizer storage hopper, and the side of the planting strip of the seedling planting device by the compressed air from the blower. A supply pipe leading to the hose joint, and the hose joint is selectively switched between a supply state for guiding fertilizer to the supply pipe and a non-supply state for collecting from the lower end of the hose joint via the discharge pipe A valve is proposed. According to this configuration, in order to collect the remaining fertilizer in the fertilizer storage hopper, the fertilizer must be discharged to the outside by the compressed air while driving the feeding portion after switching the switching valve to the non-supply state. There was a problem that it took time and effort.
[0003]
  On the other hand, in Japanese Utility Model Laid-Open No. 57-11920, a fertilizer storage cassette is configured to be detachable with respect to the upper end of each feeding portion having a feeding roller in place of the horizontally long fertilizer storage hopper so as to replenish the fertilizer. It is proposed that the fertilizer in the form of powder that is replenished even when it is raining is not wet and becomes a lump.
[0004]
[Problems to be solved by the invention]
  However, since the fertilizer storage cassette in the prior art is merely provided with a shutter that opens and closes in the horizontal direction in the middle of the upper and lower sides, when the remaining fertilizer in the fertilizer storage cassette is collected after the fertilization operation is finished, The fertilizer below the shutter has to be discharged by driving the feeding roller, and there is a problem that it takes time.
[0005]
  The present invention has been made to solve the above-mentioned problems, and has a simple structure, and can quickly collect the remaining fertilizer and can be easily replenished with fertilizer. Is intended to provide.
[0006]
[Means for Solving the Problems]
  In order to achieve the object, the present invention as described in claim 1,
“A fertilizer feeding device that has a seedling planting device behind the traveling machine of the rice transplanter and is arranged in front of the seeding planting device and at the rear of the traveling machine is fed with a fertilizer storage hopper and a lower part of the fertilizer storage hopper. And a hose joint communicating with the lower end of the feeding part, a supply pipe connected to the rear end of the hose joint and extending to the planting part of the seedling planting device, and a front end of the hose joint. An air tank that supplies fertilizer conveying air toward the supply pipe, and a cylindrical introduction chamber that extends downward from the fertilizer storage hopper is provided at the bottom of the fertilizer storage hopper. While the feeding section is offset from the introduction chamber, a fertilizer storage cassette containing fertilizer inside is disposed in the fertilizer storage hopper. Detachably mounted so that the end outlet opening to the inlet chamber, further, wherein the introduction chamber, the whole plug body fitting so as to close it at the lower end outlet of the fertilizer reservoir cassetteFreely move up and downInstall this plug,By moving up and down,It was configured to be switchable between a first state that fits at the lower end outlet and a second state that allows the fertilizer in the fertilizer storage cassette to flow from the lower end outlet to the feeding portion. "
It is characterized by that.
  Further, the invention of claim 2 is the rice transplanter with a fertilizer application device according to claim 1, further comprising a locking means for selectively locking the plug body in the first state and the second state. It is characterized by having.
[0007]
[0008]
[0009]
[0010]
DETAILED DESCRIPTION OF THE INVENTION
  Next, an embodiment of the present invention will be described. FIG. 1 is a side view of a riding type rice transplanter, FIG. 2 is a plan view of the riding type rice transplanter, FIG. 3 is a plan view showing the arrangement state of the fertilizer, FIG. 4 is a rear view showing the arrangement state of the fertilizer. Is a side sectional view of the main part of the power transmission unit, and FIG. 7 is a side sectional view of the main part of the fertilizer application.
[0011]
  The rice transplanter in the present embodiment is a 6-row planting type rice transplanter, and an engine 4 is mounted in a hood cover 3 at the front of a vehicle body frame 2 of the traveling machine body 1. The power of the engine 4 is transmitted to the rear transmission case 5 and then transmitted to the front wheel 7 via the front axle case 6 at the front of the vehicle body frame 2 and to the rear wheel 9 via the rear axle case 8 at the rear. Each is transmitted.
[0012]
  A driver's seat 11 is provided on the upper surface of the vehicle body cover 10 that covers the upper surface of the vehicle body frame 2, and an operator sitting on the driver's seat 11 operates the round handle 12 erected from the rear end of the bonnet cover 3. The front wheel 7 is steered.
[0013]
  A seedling planting device 14 is connected to the rear end of the traveling machine body 1 through a parallel link mechanism 13 so as to be movable up and down. The seedling planting device 14 includes a central transmission case 17 that transmits power through a universal joint transmission shaft 16 from a PTO shaft 15 that projects from the rear end of the transmission case 5, and transmission shafts on both the left and right sides of the central transmission case 17. Left and right transmission cases 18 and 18 connected at appropriate intervals via a connecting pipe (not shown), and a seedling stand 19 that is forwardly inclined so that the upper end approaches the rear part of the traveling machine body 1; It consists of a float 20 or the like that is provided on the lower surface of each of the transmission cases 17, 18, and 18 and slides on the mud surface of the farm field. The lower end of the seedling table 19 is supported on the lower rail 23 mounted between the upper surfaces of the three transmission cases 17, 18, 18, while being slidably supported on the upper and lower rollers of the upright column 22. Left and right slidable placement To have.
[0014]
  In addition, rotary seedling planting mechanisms 24 that rotate up and down are arranged on the left and right side surfaces of the rear portions of the transmission cases 17, 18, 18.InThe planting basket 26 in the vertical direction moves up and down between the lower end of the seedling table 19 and the field scene, and each seedling mat of the seedling table 19 is planted one by one with the planting claws at the tip of each planting basket 26. And planted in the field (see FIGS. 1 and 2).
[0015]
  The seedling planting device 14 is configured to be lifted and lowered by a lifting hydraulic cylinder 25.
[0016]
  Next, the configuration of the fertilizer application apparatus 30 will be described with reference to FIGS. 1 and 3 to 9. In the present embodiment of the fertilizer 30 for six strips, in plan view, a horizontally long fertilizer storage hopper 31 disposed along the direction perpendicular to the traveling direction of the rice transplanter at the rear of the traveling machine body 1 and the fertilizer storage In the lower part of the hopper 31, a number (six) of feeding parts 32 corresponding to the seedling planting strips arranged in a line at appropriate intervals, and the traveling direction connected to the lower ends of the feeding parts 32 Hose joint 33 heading forward and rearward, a round pipe-shaped air tank 34 that is long along the lateral width direction (perpendicular to the traveling direction) of the traveling machine body 1 and connected to the front end of each hose joint 33, and each hose A hose-like supply made of a flexible (flexible) soft synthetic resin that is connected to the rear end of the joint 33 and extends to the grooving devices 35 provided on the left and right sides of the three floats 20 in the seedling planting device 24. And a like 36.
[0017]
  A support frame frame for supporting the fertilizer application device 30 is fixedly connected to the rear end of the body frame 2 above the upper end of the rear wheel 9. That is, a pair of left and right front and rear connecting frames 37, 37 are connected to the rear end of the body frame 2 via a support frame 43 and the like, and the width direction of the traveling machine body is straddled between the upper surfaces of the pair of connecting frames 37, 37. And a pair of front and rear upper and lower frames 40 and 41 disposed above the frame so as to penetrate the support plates 38 and 38 standing on the connection frames 37 and 37 in the lateral direction. The left and right ends of the lower horizontal frame 39 and the pair of front and rear upper horizontal frames 40 and 41 are welded to the auxiliary support plates 42 and 42 to form a support frame (FIGS. 3 and FIG. 3). 5). The lower horizontal frame 39 and the rear upper horizontal frame 41 have an L-shaped cross section, and the front upper horizontal frame 40 has a round pipe shape. Further, the flat step portion 27 on the rear side of the driver's seat 11 in the vehicle body cover 10 is used for operations such as an operator walking and replenishing the fertilizer storage hopper 31 or taking out the remaining fertilizer as will be described later. It becomes a work place (scaffold) where you can do.
[0018]
  A turbo blower type blower 44 is connected to the base end of the air tank 34 (the right end in the traveling direction of the traveling machine body 1), and a lid piece (not shown) can be opened and closed at the tip of the air tank 34 (the right end in the traveling direction of the traveling machine body 1). Closed.
[0019]
  The fertilizer storage hopper 31 connects the storage cases 31a for each row of seedlings in a horizontal row. As shown in FIG. 7, the front and rear center lines of the respective storage cases 31a are arranged so as to be offset to the front part of the traveling machine body 1 with respect to the front and rear center lines of the feeding portion 32 that is connected to the lower end portion thereof. Has been. That is, the introduction chamber 47 formed in the front portion of the upper case 48 as the feeding case is connected to the funnel-shaped (constricted) lower portion of each storage case 31a.
[0020]
  A fertilizer storage cassette 70 as shown in FIGS. 10 and 11 is detachably mounted on each storage case 31a. In the embodiment, the fertilizer storage cassette 70 is formed in substantially the same shape as the storage case 31a, the cross-sectional area of the upper portion 70a of the wide mouth is substantially rectangular, and the lower portion is formed in a funnel shape (lower constriction shape). Small cross-sectional areaBottom exitThe cross section of 70b is substantially rectangular.
[0021]
  This fertilizer storage cassette 70 is integrally formed of a synthetic resin material,Bottom exitA plug 71 that is movable in the vertical direction is fitted to 70b. Inside the plug 71 made of a synthetic resin material or the like, a substantially trapezoidal flat mounting groove 72a extending so as to increase in width as it goes downward, and penetrates laterally into the upper sides of the left and right sides of the flat mounting groove 72a. A pair of support holes 72b and 72b are formed.
[0022]
  The locking body 73 made of a spring bar as a locking means that fits into the flat mounting groove 72a is composed of a U-shaped operating portion 73b and a pair of locking claws 73a and 73a bent at the tip thereof. In the free state, the pair of locking claws 73a, 73a protrudes from the support holes 72b, 72b to the left and right side surfaces of the plug body 71. 73a is configured to retreat into the left and right side surfaces of the plug body 71. And the front-end | tip of a pair of said latching claw 73a, 73a is the fertilizer storage cassette 70.Bottom exitWhen fitted in the locking holes 74, 74 formed in 70 b, the lower end portion 70 b is closed by the plug 71 so that the fertilizer in the fertilizer storage cassette 70 does not fall.
[0023]
  On the other hand, as shown in FIGS. 6 to 9, the feeding portion 32 that is connected to the lower end portion of each funnel-shaped (constricted) storage case 31a is an introduction chamber for introducing fertilizer in each storage case 31a. A feeding case is constituted by an upper case 48 having 47 and a funnel-like (lower constricted) lower case 49 detachably attached to the lower surface of the upper case 48.
[0024]
  As shown in FIG. 7, a fitting portion that communicates with the lower end of the storage case 31 a and can store the lower end portion 70 b of the fertilizer storage cassette 70 is formed on the upper surface of the introduction chamber 47 in the upper case 48. In addition, at the lower end of the introduction chamber 47,Bottom exitA plug body 71 projecting downward from 70b and an operation section 73b of the locking body 73 of the locking means are provided with a downward opening cylinder 75 that can be exposed downward. The opening cylindrical portion 75 is formed with a locking hole 76 that can be locked to the ends of the pair of locking claws 73a and 73a of the locking body 73 in a lateral direction.
[0025]
  The feed-out portion 32 is formed so that a communication groove 50 communicating with the introduction chamber 47 is vertically penetrated, and is fixed to the lower surface of the upper case 48, and adjacent to the lower surface of the fixed plate 51. The eye plate 53 having a number of eye plates 52 vertically penetrated at the same rotational radius so as to be able to communicate with the communication groove 50, and the lower surface of the eye plate 53 At the phase position below the introduction chamber 47 and has a large radius that closes the lower surface of the eye plate 52, and at the phase position in the pre-rotation direction from the introduction chamber 47, A bottom plate 54 having a notch portion (small radius portion) that opens the lower surface and non-rotatably fitted in the lower case 49, and a vertical drive shaft 55 for rotationally driving the eye plate plate 53 Etc.
[0026]
  A hose joint 33 for connecting the supply pipe 36 and the pipe 56 connected to the pipe-shaped air tank 34 is connected to the lower end of the lower case 49.
[0027]
  The introduction chamber 47 is provided on the upper surface of the upper case 48 on the side close to the driver seat 11 in the traveling machine body 1 (hereinafter referred to as the front side). Further, on the upper surface of the upper case 48, a bearing portion 61 through which a lateral transmission shaft 58, which will be described later, penetrates, a bevel gear 59 fixed to the lateral transmission shaft 58, and a bevel gear at the upper end of the vertical drive shaft 55 engaged therewith. A storage portion 62 for storing 60 is formed adjacent to the rear of the introduction chamber 47, and the vertical drive shaft 55 is located rearward (in a direction approaching the seedling planting device 14) as shown in FIG. ) It is tilted forward so that it is located. Accordingly, the fixed plate 51 is inclined forward so that the front side is low and the rear side is high. The communication groove hole 50 in the fixed plate 51 and the opening 63 at the lower end of the introduction chamber 47 with respect to the communication groove hole 50 are , It is opened obliquely downward.
[0028]
  The vertical drive shaft 55 extends obliquely downward through the fixed plate 51, the eye plate 53, and the bottom plate 54, and the vertical drive shaft 55 and the eye plate 53 are engaged with each other. Rotate. A support plate 65 fixed to a plurality of support columns 67 protruding from the inner peripheral surface of the lower case 49 penetrates the lower portion of the vertical drive shaft 55 and also includes a holding coil spring 66 fitted on the outer periphery of the vertical drive shaft 55. Support the lower end. At the upper end of the holding coil spring 66, the bottom plate 54 is pressed and urged toward the eye plate plate 53.
[0029]
  Then, the front wall 49a of the lower case 49 positioned below the introduction chamber 47 in the upper case 48 as the feeding case is moved forward so as to approach the lower end of the forwardly inclined vertical drive shaft as it goes downward. By tilting, a large space is formed between the lower side of the front wall 49a and the front end of the hose joint 33, and the air tank 34 can be arranged in the space (FIGS. 7 and 9). reference). The upper case 48, the lower case 49, and the hose joint 33 in the feeding case are each formed of a synthetic resin material.
[0030]
  As described above, the front / rear center position of each storage case 31a as the fertilizer storage hopper 31 is offset with respect to the front / rear center position of the feeding portion 32 at the lower portion thereof, thereby setting the height position of the upper end of each storage case 31a. Even if it is the same as the conventional case, the communication connection position between the lower portion of the storage case 31a and the feeding portion 32 can be set to a low position. The fertilizer storage capacity of each storage case 31a can be increased without increasing the size.
[0031]
  While the upper end opening of the six cases of storage cases 31a is integrally covered with a horizontally long main lid 45 that can be opened and closed, the main lid 45 has a storage case 31a for each one of the storage cases 31a. An auxiliary inlet 45a that opens upward is formed, and an auxiliary lid 46 is detachably provided to the auxiliary inlet 45a (see FIG. 4). Thus, when a large amount of fertilizer is put into the fertilizer storage hopper 31 at the six strips, the main lid 45 may be opened and the entire upper surface of the fertilizer storage hopper 31 may be opened widely. If the main lid 45 is opened during replenishment or when it rains, the fertilizer in the fertilizer storage hopper 31 may become wet due to rain, causing inconvenience, etc. If the auxiliary lid 46 is opened, fertilizer is added every one line. Just do it.
[0032]
  Each upper case 48 in each feeding portion 32 is bolted and fixed to the front and rear horizontal frames 40 and 41 via brackets or the like, and the lower end of the lower case 49 is fitted into an inlet tube portion 78 on the upper surface of the hose joint 33. It is detachably connected via a rubber fitting cap 79 (see FIG. 9).
[0033]
  The funnel-shaped (constricted) lower case 49 is tilted forward in the same manner as the forward tilt of the vertical drive shaft 55, and the fertilizer inlet tube portion of the hose joint 33 and the axis of the cylindrical fertilizer outlet 49b below it. The axis of the fertilizer inlet cylinder portion 78 is tilted forward in the same manner as the forward tilt angle of the vertical drive shaft 55 so that the axis of 78 is aligned substantially linearly. On the other hand, the air ejection cylinder portion 33b which is the front end side of the hose joint 33 connected to the continuous pipe 56 which is connected to the side surface of the air tank 34 is formed so as to be tapered toward the downstream side of the air conveyance. The fertilizer fed out joins the compressed air at the joining portion 33a between the air ejection tubular portion 33b and the lower end of the fertilizer inlet tubular portion 78, and is sent to the conveying tubular portion 33c to the supply pipe 36 on the downstream side. It is done. In this case, due to the tapered shape of the air ejection cylinder portion 33b, the air pressure decreases and the air velocity increases toward the merge portion 33a, so that the fertilizer that has fallen to the merge portion 33a is rapidly supplied. It can be conveyed along with air in the direction of the pipe 36.
[0034]
  On the other hand, by forming an intersection wall portion between the lower end wall of the fertilizer inlet tube portion 78 and the upper wall portion of the air discharge tube portion 33b in a nose portion 33d that is inclined downward as it goes downstream of the air conveyance, The air (pressure wind) sent from the tube portion 33b is blown upward at the merging portion 33a, so that the fertilizer in the fertilizer inlet tube portion 78 is not blown back upward.
[0035]
  Further, a holder 64 is connected to the lower end of the vertical drive shaft 55 below the support plate 65 so as not to drop off, and a spiral axis-shaped fertilizer clogging preventing member 68 is protruded downward from the lower end of the holder 64. It arrange | positions so that the lower end of the fertilizer clogging prevention member 68 may face the junction part 33a in the hose joint 33 (refer FIG. 9).
[0036]
  As described above, since the fertilizer outlet 49b at the lower end of the lower case 49 and the fertilizer inlet cylindrical portion 78 on the upper surface of the hose joint 33 are substantially in a straight line, the fertilizer can be smoothly dropped even if it is inclined. Since the fertilizer clogging prevention member 68 can penetrate deeply into the merging portion 33a, the fertilizer clogging prevention member 68 also rotates from the fertilizer outlet 49b to the lower end of the fertilizer inlet cylindrical portion 78 in accordance with the rotation of the vertical drive shaft 55. The fertilizer adhering to the lower end inner peripheral surface of the lower case 49 and the inner peripheral surface of the fertilizer inlet tube portion 78 of the hose joint 33 is removed by the fertilizer clogging prevention member 68, and the fertilizer is clogged at the junction portion 33a of the hose joint 33. Can be surely prevented.
[0037]
  Next, a power transmission mechanism for the feeding portions 32 arranged in a horizontal row will be described with reference to FIGS. A chain 84 is wound around a chain sprocket 81 fixed in the middle of the PTO shaft 15 projecting rearward from the rear end of the transmission case 5 and a chain sprocket 82 in a bearing case 83 fixed to the rear column 86 of the vehicle body frame 2. Then, the power is transmitted, and the chain is transmitted to the transmission shaft 85 in the outer lateral position in the bearing case 83. After transmitting power to the lower longitudinal transmission shaft 89 via a driven bevel gear 88 meshing with the bevel gear 87 at the end of the transmission shaft 85, the upper longitudinal transmission is transmitted via a ring cone type continuously variable transmission mechanism 90 provided at the upper end thereof. It is transmitted to the shaft 91. As shown in FIG. 5, the ring cone type continuously variable transmission mechanism 90 is rotatably provided on an input disc 92 that rotates integrally with the lower longitudinal transmission shaft 89 on the input side and on the upper longitudinal transmission shaft 91 on the output side. A plurality of planetary cones 94 (the planetary cones 94 revolve integrally with the upper longitudinal transmission shaft 91) arranged so as to be relatively rotatable between the two disks 92 and 93. The planetary cone 94 includes a non-rotating transmission ring 95 that is slidably contacted with the conical surface of the planetary cone 94, and these are housed in a transmission case 96. An adjusting screw 98 having an adjusting knob 97 for the number of rotations (and hence the amount of fertilizer delivered per unit time) is disposed in the guide portion at the rear end of the transmission case 96, and the rear end of the shifter 99 is screwed onto the adjusting screw 98. The shifter 99 is engaged with and connected to the transmission ring 95, and the planetary cone 94 on which the transmission ring 95 is pressed and abutted by raising and lowering the shifter 99 in FIG. The speed is changed by changing the position of the conical surface.
[0038]
  A gear shaft 100 that is pin-coupled by dividing a middle portion of the lateral transmission shaft 58 that passes through the plurality of feeding portions 32 is disposed in a bearing case 101 and is output to the bevel gear 102 provided on the gear shaft 100. Power is transmitted by meshing with the bevel gear 103 at the upper end of the upper vertical transmission shaft 91 on the side (see FIG. 6).
[0039]
  Further, in the storage portion 62 in each feeding portion 32, a striation clutch 104 is provided on the lower surface side of the bevel gear 60 so as to be fitted to the vertical drive shaft 55 so as to be vertically slidable. When doing so, the engagement with the clutch pawl on the lower surface side of the bevel gear 60 is disengaged and the power transmission is interrupted. A clutch shifter 105 that lowers the strut clutch 104 against the biasing spring 106 is connected to a lever 107 outside the upper case 48. A unit clutch lever 109 (see FIG. 1) that is provided for each planting strip on the upper back surface of the seedling mount 19 and turns on / off the driving of the seedling planting mechanism 24 for each planting strip and the corresponding planting. When the lever 107 at the position of the line is connected by the wire 108 and the driving of the planting line is stopped as in the seedling planting operation at the end of the ripening, the fertilization work of the line is also interrupted. .
[0040]
  With the above configuration, when seedling planting work,Bottom exitWhen the fertilizer storage cassette 70 that is locked so as not to drop off the plug body 71 and puts fertilizer in 70b is inserted and set from above each storage case 31a, the plug body 71 and the locking body 73 at the lower end thereof are The position is in the two-dot chain line state of FIG. In this state, the operating portion 73b of the locking body 73 is grasped and theBottom exitWhen the locking claw 73a is removed from the locking hole 74 of 70b, the plug 71 is pulled downward, and the locking claw 73a is locked to the locking hole 76 in the opening cylinder 75, the fertilizer storage cassette 70Bottom exit70b is opened and the fertilizer flows down into the introduction chamber 47 and is filled. In this case, if the upper surface of the plug body 71 is inclined downward toward the communication groove hole 50 side of the feeding portion 32 as shown in FIG. 7, the fertilizer can smoothly flow down and stay. Absent.
[0041]
  Then, while the traveling machine body 1 is advanced in the field, each float 20 of the seedling planting device 14 is caused to slide on the mud surface, and the PTO shaft 15 is driven to transmit power to the seedling planting device 14, so that the planting mechanism 24 is driven to divide the seedling mat from the lower end of the seedling mount 19 and plant it on the field. At this time, the rotational force is transmitted from the PTO shaft 15 to the upper longitudinal transmission shaft 91 through the ring cone type continuously variable transmission mechanism 90 and the like, and all (six strips) of the feeding portions 32 are transmitted through the lateral transmission shaft 58. Since the vertical drive shaft 55 rotates at a predetermined speed, an appropriate amount of granular fertilizer in each fertilizer storage cassette 70 is provided from the introduction chamber 47 to the lower case 49 via the countersink plate 53 per unit time. It falls down one by one and is discharged to the fertilizer inlet cylinder 78 opened in the middle of the upper and lower sides of the upper surface of the hose joint 33. On the other hand, since the compressed air from the blower 44 is blown toward the rear of the hose joint 33 through the air tank 34 and the connecting pipe 56, the fertilizer discharged to the fertilizer inlet cylinder portion 78 is supplied along with the compressed air to the supply pipe. It is discharged from the grooving device 35 to the side portion of the planting strip through 36.
[0042]
  To replenish fertilizer during rice transplanting, open the main lid 45OrAlternatively, the auxiliary lid 46 may be opened and fertilizer may be placed on each of the fertilizer storage cassettes 70 or replaced with a fertilizer storage cassette 70 containing fertilizers prepared separately.
[0043]
  In order to collect the remaining fertilizer after the fertilization work is completed, the plug body 71 is pushed up in a state where the locking claw 73a is unlocked with respect to the locking hole 76 of the opening cylinder 75, and the plug body 71 stores the fertilizer. Of cassette 70Bottom exitThe stopper 71 is fitted to 70b, and the locking claw 73a is locked again with respect to the locking hole 74 to lock.
[0044]
  As a result, the fertilizer storage cassette 70Bottom exitSince 70 b is closed, the fertilizer remaining in the fertilizer storage cassette 70 can be easily and quickly recovered by lifting the fertilizer storage cassette 70. The small amount of remaining fertilizer remaining in the introduction chamber 47 is introduced into the container 77 such as placed on the upper surface of the step portion 27 on the rear side of the driver seat 11, as indicated by a two-dot chain line in FIG. By facing the lower side of the opening cylinder part 75 of the chamber 47, when the fertilizer storage cassette 70 is extracted upward, it can be automatically recovered by the weight of the fertilizer automatically.
[0045]
  In addition, since the whole fertilizer storage cassette 70 in the said embodiment fits in the storage case 31a, it is not necessary to make rigidity so much. In order to make it difficult for the upper portion 70a of the fertilizer storage cassette 70 to be separated from the inner wall surface of the storage case 31a and to ensure the ease of carrying the fertilizer storage cassette 70, it is preferable to include a hook portion 70c.
[0046]
  Another embodiment of the fertilizer storage cassette 70 has a form in which the upper side (wide mouth portion) of each storage case 31a is omitted.Bottom exit70b is directly fitted onto the introduction chamber 47, and for this purpose, the fertilizer storage cassette 70 requires high rigidity. Further, as a means for locking and locking the plug body 71 at the predetermined position (locking holes 74 and 76), an operation rod protrudes upward (not shown) from the upper surface of the plug body 70. In addition, the locking claw may be projected and retracted by turning the operating rod around the vertical axis.
[0047]
  In each of the above-described embodiments, each fertilizer storage cassette 70 of the fertilizer storage hopper 31 receives a fertilizer lump from the top and receives a synthetic resin receiving net 121 for making a fine granule. Is provided. Further, the upper case 48 and the lower case 49 as a feeding case are detachably connected by a clamp locking member 122.
[0048]
【The invention's effect】
  As can be understood from the above description, the present invention provides a fertilizer storage hopper comprising a seedling planting device behind a traveling machine body of a rice transplanter and disposed at the rear of the traveling machine body in front of the seedling planting apparatus. And a feeding portion for feeding the fertilizer at the lower portion of the fertilizer storage hopper, a hose joint connected to the lower end of the feeding portion, and a rear end of the hose joint to extend to the planting portion of the seedling planting device A cylindrical introduction that extends downward from the fertilizer storage hopper at the bottom of the fertilizer storage hopper, comprising a supply pipe and an air tank that is connected to the front end of the hose joint and supplies fertilizer conveying air toward the supply pipe A feed chamber is provided on the side surface of the introduction chamber so as to be offset with respect to the introduction chamber, while a fertilizer containing fertilizer is placed in the fertilizer storage hopper. The storage cassette, detachably mounted to the lower end outlet of the manure storage cassette is open to the introduction chamber, further, the introduction chamber, the fertilizerStorageA plug that fits in the bottom outlet of the cassetteFreely move up and downInstall this plug,By moving up and down,It is configured to be switchable between a first state where the lower end outlet is fitted and a second state where the fertilizer in the fertilizer storage cassette is removed from the lower end outlet and flows into the feeding portion.
[0049]
  According to this configuration,Insert and set a fertilizer storage cassette with fertilizer in the fertilizer storage hopper with the bottom outlet closed with a plug, and lower the plug downward to remove the bottom outlet.The fertilizer storage cassette communicates with the feeding section, and the feeding of the fertilizer to the feeding section can be performed with almost one touch. When collecting the remaining fertilizer, the stopper is pushed up.Bottom exitThe fertilizer storage cassette can be pulled out in a closed state, and the simple structure makes it possible to replenish and recover the fertilizer extremely easily.
[0050]
[0051]
[0052]
[0053]
  In particular, according to the configuration described in claim 2,When carrying the fertilizer storage cassette or during the fertilization work, the stopper is not accidentally dropped and is safe.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a rice transplanter.
FIG. 2 is a schematic plan view of a rice transplanter.
FIG. 3 is a schematic plan view of a support frame for supporting the fertilizer application apparatus.
FIG. 4 is an arrangement rear view of the fertilizer applicator.
FIG. 5 is a side view of a power transmission mechanism for a fertilizer application apparatus.
FIG. 6 is a cross-sectional view of the main part of the back surface of the power transmission mechanism for the fertilizer application apparatus.
FIG. 7 is a side sectional view of the fertilizer application apparatus.
FIG. 8 is an exploded perspective view of parts of a feeding portion.
FIG. 9 is an enlarged cross-sectional view of a main part of a feeding part.
FIG. 10 is a perspective view of a configuration of a fertilizer storage cassette.
11 is a cross-sectional view taken along line XI-XI in FIG.
[Explanation of symbols]
1 Traveling aircraft
7 front wheels
9 Rear wheel
11 Driver's seat
14 Seedling planting equipment
19 Seedling stand
27 Step part
30 Fertilizer
31 Fertilizer storage hopper
31a Storage case
32 Feeding part
33 Hose joint
34 Air tank
36 Supply pipe
47 Introduction room
70 Fertilizer storage cassette
70b bottomExit
71 Plug
73 Locking body as locking means
73a Claw
74,76 Locking hole
75 Opening cylinder

Claims (2)

A fertilizer is installed in the rear part of the traveling machine body of the rice transplanter. A feeding portion to be performed, a hose joint connected to the lower end of the feeding portion, a supply pipe connected to the rear end of the hose joint and extending to the planting portion of the seedling planting device, and a front end of the hose joint An air tank for supplying fertilizer conveying air toward the supply pipe, and a cylindrical introduction chamber extending downward from the fertilizer storage hopper is provided at the bottom of the fertilizer storage hopper, and the feed is provided on a side surface of the introduction chamber. The fertilizer storage cassette with the fertilizer stored inside is placed under the fertilizer storage cassette in the fertilizer storage hopper. Outlet is removably mounted to open to the introduction chamber, further, wherein the introduction chamber, is provided movably the whole plug member fitted so as to close it at the lower end outlet of the fertilizer storage cassette in the vertical direction The plug body is moved in the vertical direction so that the plug is fitted into the lower end outlet , and the plug is removed from the lower end outlet so that the fertilizer in the fertilizer storage cassette flows into the feeding portion. A rice transplanter with a fertilizer application device, which is configured to be switchable to any state. Before Kisentai a fertilizing device with rice transplanter according to claim 1, characterized in that it comprises a locking means for selectively locking the said first state and said second state.

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