JP3949001B2 - Riding type rice transplanter with fertilizer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, a seedling planting device having a plurality of seedling planting mechanisms arranged in the lateral direction of the airframe is connected to the rear part of the self-propelled vehicle body so as to be movable up and down, and in the vicinity of a seedling planting place by a plurality of seedling planting mechanisms The present invention relates to a riding type rice transplanter with a fertilizer applicator provided in a rear portion of a self-propelled vehicle body with a fertilizer supply device portion of a fertilizer supplying fertilizer separately.
[0002]
[Prior art]
The above-mentioned riding type rice transplanter with a fertilizer application unit is designed so that the weight of the fertilizer supply unit of the fertilizer supply unit and the weight of the fertilizer stored in the fertilizer supply unit are not applied to the seedling planting unit. The fertilizer supply device part of the fertilizer application device is provided at the rear part of the self-propelled vehicle body so that the fertilizer supply path for supplying fertilizer from the device part to the fertilization site of the seedling planting device is as short as possible.
[0003]
[Problems to be solved by the invention]
Conventionally, in this type of riding rice transplanter with a fertilizer application device, as shown in, for example, Japanese Patent Application Laid-Open No. 2002-95312, fertilizer conveying wind is supplied to the fertilizer feeding device of the fertilizer feeding device by a blower, and the fertilizer feeding device Even if the route for supplying fertilizer to the fertilizer application site of the seedling planting device is long or bent, there is one in which the fertilizer from the fertilizer feeding device can be reliably sent to the fertilizer application site by the fertilizer conveying wind.
[0004]
In this case, depending on how the blower is mounted and how the fertilizer conveyance air is supplied from the blower to the fertilizer feeding device, problems are likely to occur in terms of the self-propelled vehicle body and the fertilizer conveyance air supply. That is, when the blower is positioned on one side of the vehicle body, the weight of the blower is applied to the side of the self-propelled vehicle body, and the left-right weight balance of the self-propelled vehicle body tends to deteriorate. Moreover, when supplying fertilizer conveying wind to the fertilizer feeding device from the lateral one end side of the fertilizer feeding device section, from the supply path for supplying the conveying wind to the fertilizer feeding device located closest to the blower, and the blower The difference in length from the supply path for supplying the conveying wind to the most distant fertilizer feeding device becomes significantly large, and the fertilizer conveying wind is supplied to a plurality of fertilizer feeding devices in a significantly uneven state. It becomes easy.
[0005]
In addition, in this type of fertilizer, if the fertilizer is damp, or if the inside of the fertilizer supply path that transports the fertilizer from the fertilizer feeding device to the fertilizer application location is damp, it is difficult for the fertilizer to flow and fertilizer clogging is likely to occur. .
[0006]
The object of the present invention is to avoid or suppress the occurrence of problems in terms of the self-propelled vehicle body and the fertilizer transport wind supply, and further, the fertilizer can be transferred while the fertilizer transport is advantageously performed with a simple structure. An object of the present invention is to provide a riding type rice transplanter with a fertilizer application device that can supply fertilizer to a fertilizer application place, or can supply fertilizer to a fertilizer application wind by using a fertilizer transfer wind while it is difficult to generate fertilizer clogging due to moisture.
[0007]
[Means for Solving the Problems]
The configuration, operation, and effect of the invention according to claim 1 are as follows.
[0008]
[Configuration] (Claim 1)
At the rear of the self-propelled vehicle body, a seedling planting device with multiple seedling planting mechanisms aligned in the lateral direction of the aircraft is connected to be freely movable up and down, and fertilizer is separately provided near the seedling planting location by the multiple seedling planting mechanisms In the riding type rice transplanter with fertilizer provided in the rear part of the self-propelled vehicle body,
A blower provided with a blower that supplies fertilizer conveying air to the fertilizer feeding device in the fertilizer supply device section and an electric motor that drives the blower in a state in which the blower is not separated, and a rotational axis of the blower is in a lateral direction of the vehicle body, and The blower is configured to be positioned between the sheet metal body frames such that the air inlet of the blower or the electric motor overlaps with the pair of left and right sheet metal body frames below the driver seat in plan view or rear view , The air intake port or the electric motor of the blower is passed through the sheet metal body frame such that the blower outlet of the blower is located at the center of the left and right of the self-propelled vehicle body.
[0009]
[Action]
There is no need to provide a special space for installing the blower, or even if special installation is required, the blower needs only a small space, preventing the front and rear length of the self-propelled vehicle from becoming longer or significantly longer while, and, while allowing the entire blower is located as low as possible level, further, the air outlet of the blower is positioned to the left and right in the heart of the self-propelled vehicle, with respect to fertilizer feeding device located farthest from the blower The fertilizer conveying wind is supplied to the fertilizer feeding device while minimizing the difference in length between the route supplying the fertilizer conveying air and the route supplying the fertilizer conveying air to the nearest fertilizer feeding device. Can supply.
[0010]
[0011]
[effect]
Therefore, the difference between the route for supplying the fertilizer conveying air for the fertilizer feeding device located far from the blower and the route for supplying the fertilizer conveying air for the fertilizer feeding device located nearby is minimized. The fertilizer conveying wind is supplied to any fertilizer feeding device with the same air volume and strength as much as possible, and the fertilizer is reliably supplied to all fertilizer application places by the appropriate fertilizer conveying wind, and there is little uneven fertilization Accurate fertilization work can be performed.
[0012]
On the other hand, the length of the vehicle body can be shortened and the weight balance of the self-propelled vehicle body can be made good so that the entire riding type rice transplanter with a fertilizer can be easily driven and operated.
[0013]
[0014]
The structure, operation, and effect of the invention according to claim 2 are as follows.
[0015]
[Constitution]
In the configuration of the invention according to claim 2 , a central portion in the distribution duct portion along the vehicle body lateral direction of the air duct that distributes and supplies the fertilizer conveyance air to the fertilizer feeding device, and extends downward from the central portion toward the vehicle body. The introduction duct portion is integrally molded into a single part, and the introduction port of the introduction duct portion and the blower outlet of the blower are connected below the body cover covering the rear of the body frame. is there.
[0016]
[Action]
[0017]
The central part of the distribution duct part and the introduction duct part are integrally formed as a single part, and the introduction port of the introduction duct part and the blower outlet of the blower are connected below the body cover. The upper part of the part where the air outlet and the inlet of the air duct are connected is covered by the vehicle body cover, and it is possible to connect the air blower and the distribution duct while preventing rain or car wash water from entering the air blower. .
[0018]
[effect]
Therefore, the blower is less likely to be flooded and is less likely to fail.
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
The structure, operation, and effect of the invention according to claim 3 are as follows.
[0031]
[Constitution]
In the configuration of the invention according to claim 1 or 2 , a rubber cylinder is provided in the middle of a path for supplying the air heated around the engine exhaust muffler to the air inlet of the blower.
[0032]
[Action]
The fertilizer conveying wind effectively heated by the engine exhaust muffler can be supplied to the fertilizer feeding device, and the fertilizer can be supplied to the fertilized portion by the fertilizer conveying wind (warm air). Thereby, even when the fertilizer supply path from the fertilizer feeding device to the fertilizer application place or the fertilizer is humid, it can be supplied while being dried by the fertilizer conveying air (warm air). In this case, vibration is likely to occur in the path for supplying the air heated around the engine exhaust muffler to the air inlet of the blower, but the vibration is absorbed by the rubber cylinder and is not easily transmitted to the blower.
[0033]
[effect]
Therefore, when the fertilizer supply path and fertilizer are not damp, not only the fertilizer can be reliably supplied to the fertilizer application site by the fertilizer transport wind, but the fertilizer supply path and fertilizer can Even in the case of moisture, it is supplied while being dried by a fertilizer conveying air (warm air), and clogging due to moisture is unlikely to occur, and an accurate fertilization operation with less uneven fertilization and fertilization leakage can be performed. In addition, the engine exhaust muffler can be advantageously used as a heating means in terms of structure and economy. In this case, the vibration is not easily transmitted to the blower, and the blower is less likely to be damaged or broken.
[0034]
[0035]
[0036]
[0037]
[0038]
[0039]
[0040]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 and 2, a pair of left and right front wheels 1 and a pair of left and right rear wheels 2 are driven by a driving force from an engine 11 to self-run, and the engine 11 is In the rear part of the self-propelled vehicle body provided with the spare seedling storage device 3 located on both sides of the provided driving part 10 and the riding type driving part provided with the driving seat 4 located at the rear part of the vehicle body, The seedling planting device 20 is connected via the link mechanism 6, and the link mechanism 6 is swung up and down with respect to the vehicle body by a lift cylinder 7 connected to the link mechanism 6 on the rod side. 20 is configured to move up and down, and the driving force from the engine 11 is configured to be transmitted to the seedling planting device 20 by the rotary shaft 8, which is long in the lateral direction of the vehicle body located behind the driver seat 4. One fertilizer tank 31 Let me provided with a by and fertilizer apparatus S with, have configured fertilizing device with riding rice transplanter.
[0041]
In this rice transplanter, the seedling planting device 20 is arranged in the lateral direction of the planting machine body by running the self-propelled vehicle body in a descending work state in which the seedling planting device 20 is grounded by the ground float 21 on the rice field. A plurality of seedlings are planted by the seedling planting mechanism 22, and at the same time, the fertilizer application device S supplies granular fertilizers near the lateral sides of each of the plurality of planted seedlings. It is configured as follows.
[0042]
As shown in FIGS. 1, 2, 3, etc., the seedling planting apparatus 20 includes a planting machine body including a feed case 23 that is input from the rotary shaft 8, and a plurality of planting cases 24 that are arranged in the lateral direction of the planting machine body. A frame, the seedling planting mechanism 22 attached to both lateral sides of the rear end portion of each planting case 24 so as to be freely rotatable, and a lateral direction of the planting machine body above the front end side of the planting machine body frame A seedling platform 25 that is provided slidably and is reciprocated in the left-right direction in conjunction with the seedling planting movement of each seedling planting mechanism 22 to supply seedlings to each seedling planting mechanism 22, and the planting machine frame A plurality of grounding floats 21 are provided in the lower part so as to be arranged in the lateral direction of the planting machine body so as to swing up and down around the axis on the rear end side.
[0043]
As shown in FIGS. 1, 3, 4, and the like, the fertilizer application device S includes a fertilizer supply device unit 30 including the fertilizer tank 31 and a plurality of the fertilizer supply device units 30 arranged in the vehicle body lateral direction. A plurality of fertilizer supply paths 50 that extend from the fertilizer discharge port 41 toward the seedling planting device 20 and whose extension end side is located on the back side of the seedling mount 25, and the plurality of fertilizer supply paths A plurality of extension ends connected to the 50 extended ends and arranged one by one near the lateral side of each seedling planting mechanism 22 and arranged in the lateral direction of the planting machine body and fixed to the grounding float 21 Each groove-growing fertilizer 70 is configured by a blower unit 60 including a blower 61 located below the driver's seat 4.
[0044]
As shown in FIGS. 4 and 5, the fertilizer supply unit 30 has a lid 32 that is swingably opened and closed at the top, and the lid 32 is also a tank so that the inside can be seen from the outside without opening the lid 32. The main body of the fertilizer tank 31 is connected to each of the fertilizer tank 31 made of a transparent resin material and a plurality of lower bottom portions 31a arranged in the vehicle body lateral direction of the fertilizer tank 31. A plurality of fertilizer feeding devices 40 are connected to the lower portion side by side in the vehicle body lateral direction.
[0045]
As shown in FIGS. 6 to 9 and the like, each fertilizer feeding device 40 is made of a transparent resin material so that the upper end side is connected to the lower thinned bottom portion 31a of the fertilizer tank 31 and the inside can be seen from the outside. A feeding case 42, a feeding roll 43 rotatably provided in one of a pair of left and right feeding chambers located inside the feeding case 42, and a communication between the pair of feeding chambers at the lower end side of the feeding case 42. One of the two fertilizer discharge ports 41 provided side by side in the lateral direction of the vehicle body and a supply port provided to supply fertilizer to the feed roll 43 inside the feed case 42. 2 shutters 45 for 44 and the like.
[0046]
That is, each fertilizer feeding device 40 is provided with an operation knob at the end protruding from the feeding case 42 of the feeding amount adjusting tool 46 formed of a sliding rod connected to one end of each shutter 45. The operation amount 46a provided is slidably operated along the guide groove 118a of the operation guide 118 as shown in FIG. 9 by sliding the supply amount adjusting tool 46, so that at least one of the two shutters 45 is attached to the supply case 42. The supply port 44 is opened by pushing into the shutter accommodating chamber 45a located inside, and the rotation support shaft 47 that is also used as the rotation support shaft of the supply roll 43 located in the other supply chamber is driven. Thus, the fertilizer is fed from the fertilizer tank 31 to the fertilizer discharge port 41 by the feeding roll 43. That is, the feeding roll 43 is driven by the rotation support shaft 47 so as to rotate in the feeding direction around the horizontal axis, and flows down from the discharge port 31 b of the fertilizer tank 31 into the feeding case 42 and from the supply port 44. The fertilizer supplied to the upper side of the feeding roll 43 is taken out to the lower side of the feeding roll 43 by a plurality of feeding recesses 43a as shown in FIGS. The fertilizer discharge port 41 is allowed to flow down from the outlet.
[0047]
In the two fertilizer feeding devices 40 connected to one lower-thinned bottom portion 31a of the fertilizer tank 31, the feeding case 42 of one fertilizer feeding device 40 and the feeding case 42 of the other fertilizer feeding device 40 Are manufactured as a single part, and a feed roll 43 of both fertilizer feed devices 40 is supported by a single rotation support shaft 47 so as to be freely rotatable. And in one feeding device 40 of the two fertilizer feeding devices 40 connected to one lower narrow bottom portion 31a located inside the vehicle body of the fertilizer tank 31, the supply port 44 is covered by a lid. Closed and not in use.
[0048]
As shown in FIGS. 10 to 12, the blower unit 60 includes a blower 62 and an electric motor 63 that drives the blower 62 without being separated, and a lower end of each feeding device 40. A blower duct 65 connected to the front side of the fan part, and an intake duct 68 extending from the air inlet 62a of the blower 62 of the blower 61 to the front side of the vehicle body and having an extended end opened to the driving part 10. It is configured.
[0049]
As shown in FIG. 12, the opening 68 a located in the prime mover 10 of the intake duct 68 has a rear end side of a tubular muffler cover 13 that is mounted so as to be externally fitted to the engine exhaust muffler 12. On the other hand, the muffler cover 13 is connected via a bellows-shaped rubber cylinder 14 that suppresses transmission of vibration to the intake duct 68.
[0050]
As shown in FIGS. 6, 10, 13, 15, etc., the air duct 65 is connected to the fertilizer discharge port 41 on the front side of the lower end portion of the feeding case 42 of each of the plurality of fertilizer feeding devices 40. A horizontal pipe-shaped distribution duct portion 66 connected to a wind intake port 48 provided so as to communicate in a straight line in the longitudinal direction of the vehicle body, and a side wall of the distribution duct portion 66 of the distribution duct portion 66. The central portion 66a is integrally formed with the central portion 66a so as to extend from the portion 66a located in the central portion in the direction toward the lower side of the vehicle body and slightly forward and to be a single part with the central portion 66a. An introduction duct portion 67 is included. As shown in FIG. 13 and the like, the introduction duct portion 67 of the air duct 65 penetrates the vehicle body cover 71 covering the upper portion of the rear portion of the vehicle body frame at the center portion in the vehicle body left-right direction behind the driver seat 4. The introduction port 67a of the introduction duct portion 67 is connected by a joint 69 to the outlet 62b of the blower 62 located at the center of the left and right of the self-propelled vehicle body below the vehicle body cover 71. It is.
[0051]
In other words, the air blower unit 60 is heated by the engine exhaust muffler 12 inside the muffler cover 13 and sucks the air whose temperature has risen through the intake duct 68 by the blower 62 driven by the electric motor 63 and has a high temperature. Fertilizer conveying wind is generated, and this fertilizer conveying wind is sent from the outlet 62b to the distribution duct portion 66 through the introduction duct portion 67 of the blower duct 65, and is distributed to the plurality of fertilizer feeding devices 40 by the distribution duct portion 66. The fertilizer supply device 40 supplies the fertilizer discharge port 41 from the wind intake port 48.
[0052]
The feed roll 43 of each fertilizer feed device 40 includes a feed drive shaft 81 formed of a single hexagonal shaft that is horizontally mounted on the rear surface side of the feed case 42 of each fertilizer feed device 40 so as to be rotatable as shown in FIG. Yes configured to you driven by it are fertilizing driving device 80, the fertilizing drive apparatus 80, FIG. 4, FIG. 5, it is constituted as shown in FIG. 7 and the like.
[0053]
That is, the fertilizer application drive device 80 is provided between the feeding drive shaft 81 and each of the plurality of rotating support shafts 47 that support the feeding drive shaft 81 and the feeding rolls 43 so as to be integrally rotatable two by two. The provided small number of fertilizer clutch 90, and first and second one-way rotary clutches 82, 83 in which the output side rotating bodies 82a, 83a are connected to the feeding drive shaft 81 as shown in FIGS. A link mechanism 84 that interlocks the input-side rotators 82b and 83b of both one-rotation direction clutches 82 and 83, and an operation that is integrally extended from the input-side rotator 82b of the first one-rotation direction clutch 82. One end side of the arm 85, a fertilization amount adjusting mechanism 95 in which an arm side interlocking member 96 is connected to the operation arm 85, and a driving side interlocking member 97 of the fertilization amount adjusting mechanism 95 are relatively rotated. A drive rod 86 of a round bar which is connected to the stationary crank arm 87a on the other end of the drive rod 86 are constituted by a power take off mechanism 87 which connects relatively rotatably.
[0054]
As shown in FIGS. 7 and 16, each of the minority fertilizing clutches 90 meshes with a gear portion 47a that is rotatably provided integrally with an end portion of the rotating support shaft 47 that protrudes from the fertilizer feeding case 42 to the outside. In this state, the output gear 91 is rotatably supported by the feed drive shaft 81, and is slidably supported by the feed drive shaft 81. The input side member 92 that rotates integrally with the shaft 81, the meshing clutch body 90a provided between the input side member 92 and the output side member 91, and the input side member 92 are slidably biased. When the operating portion 94 that is provided with the clutch spring 93 and is engaged with the operating groove of the input side member 92 by the operating pin 94a is swung, an artificial operating force transmitted to the operating portion 94 is obtained. Due to the operating force of the latch spring 93, the input side member 92 slides relative to the feed drive shaft 81, and the clutch pawl of the input side member 92 of the clutch body 90a is engaged with and disengaged from the clutch pawl of the output gear 91. Thus, the rotational force of the feed drive shaft 81 is transmitted to the gear portion 47a of the rotary support shaft 47 via the input side member 92, the clutch main body 90a, and the output side member 91, and the feed roll 43 of the two fertilizer feed devices 40 is transferred. It enters a state of being driven together, or is cut off so that the driving of the two fertilizer feeding devices 40 feeding rolls 43 is stopped at once by cutting off the transmission from the feeding driving shaft 81 to the rotating support shaft 47. Or
[0055]
As shown in FIGS. 17 and 19, the link mechanism 84 includes a rod-shaped interlocking link 84 a having one end connected to the input-side rotating body 82 b of the first one-rotation direction clutch 82, and the interlocking link 84 a The other end portion of the swing link 84b is connected to one arm portion and supported by the support member 88 so as to be swingable. The other arm portion of the swing link 84b is connected to the second one-rotation direction clutch 83. It is composed of an interlocking link 84c made of a rod interlocked with the input side rotating body 83b, and drives the feeding roll 43 of each fertilizer feeding device 40 by reciprocating rocking around the axis of the feeding driving shaft 81 of the operation arm 85. Is possible.
In other words, when the operating arm 85 is swung to the ascending side (arrow A side in FIG. 17), the rotational force of the operating arm 85 is transmitted to the feeding drive shaft 81 by the first one-way rotary clutch 82. At this time, the interlocking link 84a swings the swinging link 84b for turning the input side rotating body 82b of the first one-way rotation clutch 82, and the swinging link 84b is connected to the second via the interlocking link 84c. The input-side rotating body 83b of the one-way rotation clutch 83 is rotated. The input-side rotating body 83b is rotated in the rotation direction opposite to the feeding direction and is idled with respect to the output-side rotating body 83a. When the operating arm 85 is swung to the lowering side (arrow B side in FIG. 17), the input-side rotating body 82b of the first one-way rotation clutch 82 is idle with respect to the output-side rotating body 82a. At this time, the interlocking link 84a swings the swinging link 84b for turning the input side rotating body 82b of the first one-way rotation clutch 82, and the swinging link 84b is connected to the second via the interlocking link 84c. The input side rotating body 83 b of the one-way rotation clutch 83 is rotated in the feeding direction, and the link mechanism 84 drives the feeding drive shaft 81 via the second one-way rotation clutch 83.
[0056]
As shown in FIG. 4 and the like, the power take-off mechanism 87 takes out this drive force from the middle of the rotating shaft 73 that transmits the drive force from the engine 11 to the rear wheel drive case 72 in FIG. 87a is driven to rotate, and the driving rod 86 is reciprocated by the rotating crank arm 87a.
[0057]
As a result, the fertilizer application drive device 80 drives the crank arm 87a by the driving force of the rotary shaft 73 that transmits power to the left and right rear wheels 2, and reciprocates the drive rod 86 by the crank arm 87a. The power is transmitted to the operation arm 85 via the fertilizer application amount adjusting mechanism 95, and the operation arm 85 is reciprocally swung around the axis of the feeding drive shaft 81. The operation arm 85 causes a pair of one-way rotation clutches 82, 83 to move. The feed drive shaft 81 is driven to rotate through the link mechanism 84 and the driving force of the feed drive shaft 81 is transmitted to the rotation support shaft 47 of the feed roll 43 of each fertilizer feed device 40 through the small number of fertilizer clutch 90. By doing so, the feeding roll 43 of each fertilizer feeding device 40 is driven to rotate only in a predetermined feeding rotation direction.
[0058]
That is, the fertilizer application device S performs fertilization as follows.
That is, the feeding roll 43 of each fertilizer feeding device 40 of the fertilizer supply device section 30 is driven by the fertilizer driving device 80 using the driving force of the rotating shaft 73 that transmits power to the left and right rear wheels 2 as a power source. 43, the granular fertilizer is fed from the fertilizer tank 31 to the fertilizer discharge port 41 in a set amount determined by the volume of the recess 43a and the number of shutters 45 that have been opened, and this fertilizer is fed to the blower 60 61 and the air duct 65 are supplied to the grooving fertilizer 70 through the fertilizer supply path 50 by the fertilizer conveying wind supplied to the fertilizer discharge port 41, and the side of the planted seedling by the seedling planting mechanism 22 by each grooving fertilizer 70. A groove is formed on the rice field near the side, and the fertilizer is dropped inside the groove.
[0059]
In each fertilizer feeding device 40, the two shutters 45 are adjusted to be opened and closed by the feed amount adjusting tool 46, thereby turning on and off the fertilizer feed and adjusting the feed amount of the fertilizer.
That is, when both of the two shutters 45 are operated to the closing side, the supply port 44 is fully closed, no fertilizer is supplied to the feed roll 43, and the fertilizer feed is cut off. When operated in the open side of one of the two shutters 45, and feed the recess 43a at one half side of the feeding roll 43 is supply port 44 is fully opened, to any of the feeding recess 43a at the other half side However, fertilizer will be supplied, and the amount of feed per unit time will increase as fertilizer is fed. On the other hand, when one of the two shutters 45 is operated on the open side and the other is operated on the closed side, the supply port 44 is in a half-open state, and only in the feeding recess 43a in one half of one of the feeding rolls 45. Fertilizer will be supplied, the feed of fertilizer will be entered, and the feed amount per unit time will be reduced.
[0060]
As shown in FIG. 18, the fertilization amount adjusting mechanism 95 is configured to clamp and connect the arm side interlocking member 96 made of a sheet metal member and one end side of the arm side interlocking member 96 to the back plate portion 85 a of the operation arm 85. The drive side interlocking member 97, which is composed of a connection screw 98, a sheet metal member having a U-shaped cross section and the end of the drive rod 86 is connected by a connection pin 97a, and the back plate of the drive side interlocking member 97 The portion 97b is provided with an adjusting screw 99 that is connected to the back plate portion 96a of the arm side interlocking member 96.
[0061]
The arm-side interlocking member 96 has a plurality of positioning recesses 85b in which positioning pins 96b fixed over the pair of horizontal plate portions are arranged in the longitudinal plate portion of the operation arm 85 in the longitudinal direction of the operation arm 85. It is configured to be connected to the back plate portion 85a of the operation arm 85 by the connection screw 98 at the connection position that is selected from the above.
In other words, when the tightening of the arm side interlocking member 96 with respect to the operation arm 85 by the connection screw 98 is released, the screw hole 85c for the connection screw 98 of the operation arm 85 is a long hole, so that the arm side interlocking member 96 is connected to the connection screw. 98 and the operating arm 85 can be slid and adjusted, and the positioning recess 85b of the operating arm 85 into which the positioning pin 96b enters is changed to change the connecting position of the arm side interlocking member 96 to the operating arm 85. In the longitudinal direction of the arm 85, the position is changed at a position change pitch determined by the pitch at which the positioning recesses 85b are arranged.
[0062]
The positioning pin 96b of the drive side interlocking member 97 is adjusted by rotating and adjusting an adjustment member 99a made of a nut attached to the other end of the adjustment screw 99 that is fixed to the drive side interlocking member 97 at one end side. Each of the inserted pin hole 97c and the pin hole 96c into which the end of the connecting pin 97a of the arm side interlocking member 96 is a long hole makes the arm side interlocking member 96 of the driving side interlocking member 97. The position change is a position change pitch determined by the screw pitch of the adjustment screw 99 in the direction along the longitudinal direction of the operation arm 85 and a position change smaller than the position change pitch of the arm side interlocking member 96 with respect to the operation arm 85. It is configured to change with the pitch.
[0063]
Thereby, the fertilizer application amount adjusting mechanism 95 transmits the reciprocating power of the driving rod 86 to the operating arm 85 via the driving side interlocking member 97 and the arm side interlocking member 96, thereby driving the operating arm 85 by the driving rod 97. It is possible. Then, by changing the connection position of the arm side interlocking member 96 with respect to the operation arm 85, the connection position of the driving rod 86 in the operation arm 85 is changed at a relatively large change pitch in the longitudinal direction of the operation arm 85. Roughly changes the swing angle driven by the drive rod 86, and roughly adjusts the fertilizer feed amount per unit time in each fertilizer feed device 40. Then, by changing the connection position of the drive side interlocking member 97 with respect to the arm side interlocking member 96, the connection position of the drive rod 86 in the operation arm 85 is changed in the longitudinal direction of the operation arm 86 with a relatively small change pitch. The swing angle at which the arm 85 is driven by the drive rod 86 is finely changed, and the fertilizer feed amount per unit time in each fertilizer feed device 40 is finely adjusted.
[0064]
Each of the plurality of fertilizer supply paths 50 respectively connected to the plurality of fertilizer discharge ports 41 of the fertilizer supply device section 30 is made as a separate part from the feeding case 42 of the fertilizer feeding device 40 as shown in FIG. An inflexible resin pipe member 51 having a proximal end side connected to the fertilizer discharge port 41 of the fertilizer feeding device 40 by a joint 51a, and one end side connected to the distal end side of the pipe member 51 by a joint 51a. A flexible hose 52, an air vent mechanism 55 in which the inlet of the fertilizer supply pipe 56 is connected to the other end side of the hose 52 as shown in FIG. 3, and the fertilizer supply pipe of the air vent mechanism 55 as shown in FIG. The 56 outlets are constituted by a non-flexible resin pipe member 53 connected to the groove-growing fertilizer 70.
[0065]
The fertilizer supply unit 30 is supported by the vehicle body main frame 5 facing the vehicle body, which is formed of a pair of left and right square pipe members of the self-propelled vehicle body, by the mounting structure shown in FIGS. 4, 5, 21 and the like.
[0066]
That is, the lower end side is connected to the upper part of one rear end side of the pair of left and right sheet metal body frames 75 erected separately at the rear part of the pair of left and right body main frames 5 via the connecting member 101a. The lower end side is connected to the upper part of the rear end side of the other sheet metal body frame 75 and the other feed column 101 erected at the rear part of the frame 75 via the connecting member 101a. A feed post 101 that is erected at the rear, a feed frame 102 that is supported by both feed posts 101, and a rear frame portion 103 that is lateral to the vehicle body is connected across the upper ends of the feed posts 101; A vehicle body frame 7 made of a round pipe material facing the vehicle body, which is connected across intermediate portions in the longitudinal direction of the vehicle body on the upper end side of both the sheet metal vehicle body frames 75. The tank column 107 made up of a pair of left and right round pipe members standing on the support portion 76a of the vehicle and the round pipe facing the vehicle body that is connected across the upper ends of both tank columns 107 and supported by both tank columns 107 The tank support 108 made of a material is provided on the rear side of the driver's seat 4 of the self-propelled vehicle body, and the rear frame portion 103 of the feeding support frame 102 is arranged on the rear side of the feeding case 42 of each feeding device 40. The front frame portion 104 made of a round bar material facing the vehicle body located on the front side of the rear frame portion 103 of the feeding support frame 102 is connected to the feeding case 103 of each feeding device 40. The tank support 108 is supported on the front side of each of the lower thinned bottom portions 31a of the fertilizer tank 31. It is brought into contact with.
[0067]
As shown in FIGS. 22, 23, and the like, a connecting member 109 is attached across each of the pair of left and right tank columns 107 and the front frame portion 104 of the feeding frame body 102, and the tank column 107 and the feeding frame body 102 are coupled to each other. The members 109 are connected to support each other.
[0068]
As shown in FIG. 21, the feeding support frame 102 includes the rear frame portion 103 and the front frame portion 104 that are aligned in the longitudinal direction of the vehicle body and parallel to each other, and the front frame portion 104 and the rear frame portion. A pair of left and right outer connecting frame portions 105 made of sheet metal that connects both ends of the frame portion 103, and a front side slightly inward of the vehicle body and near the connecting member 109. Each of the pair of left and right inner connecting frame portions 106 connecting the frame portion 104 and the rear frame portion 103 is configured.
[0069]
The blower 61 is supported by the pair of vehicle body main frames 5 of the self-propelled vehicle body by the mounting structure shown in FIGS. 4, 13, 14, and 15.
[0070]
That is, a through hole 75a is provided in each of the pair of left and right sheet metal body frames 75, the rotation axis 62c of the blower 62 of the blower 61 is laterally directed to the vehicle body, and the outlet 62b of the blower 62 is slightly upwardly directed toward the vehicle body. It is in a state of facing backward toward the fertilizer feeding device 40, and further, the blower 62 is positioned between the pair of left and right sheet metal body frames 75, and the electric motor 63 of the blower 61 is the one sheet metal. The through hole 75a of the vehicle body frame 75 is disposed below the driver seat 4 so that the intake duct 68 is inserted through the through hole 75a of the other sheet metal body frame 75. The lower end side of the blower case is connected to the support body 77 fixed to the vehicle body main frame 5 which is positioned by a connecting bolt. The sheet metal body frame 75 is connected via a rubber cushioning material 75b attached around the lower end side of the through hole 75a of the sheet metal body frame 75 through which the electric motor 63 passes. Thus, the electric motor 63 is received and supported.
[0071]
The through hole 75a of the sheet metal body frame 75 through which the electric motor 63 of the blower 61 passes is a long through hole that is long in the vertical direction of the vehicle body. That is, when the blower 61 is assembled, the blower rotating shaft core 62c is inclined with respect to the vehicle body, and the electric motor 63 is in a state where the electric motor 63 enters the through long hole 75a of the sheet metal body frame 75. By inserting 61 between the sheet metal body frames 75 from above, the blower 61 can be loaded at a predetermined assembly position without being separated from the blower 62 and the electric motor 63. It is.
[0072]
Since the sheet metal body frame 75 through which the intake duct 68 passes is made of the same sheet metal material as the sheet metal body frame through which the electric motor 63 passes, the intake duct 68 The through hole 75a of the sheet metal body frame 75 which is penetrating is also a through hole having the same shape and size as the through long hole 75a of the other sheet metal body frame 75.
[0073]
As shown in FIG. 2, the distance FT of the front wheel 1 is the same as the distance of the rear wheel 2 and the planting seedlings in a pair of planting shoots adjacent to each other by the seedling planting device 20 are arranged. The wheel distance is larger than an integral multiple of the interval W in the lateral direction of the vehicle body. Even if the front wheel 1 is steered and swings sideways, the clearance between the front wheel 1 and the intake duct 68 located inside the front wheel 1 can be secured sufficiently for the turning angle. is there.
[0074]
As shown in FIGS. 1 and 10, the intake duct 68 extends forward from a portion of the pair of left and right vehicle body main frames 5 located on the laterally outer side of the vehicle body, and extends from the vehicle body frame 76 made of the round pipe. A vehicle body longitudinal direction through-hole 78a as shown in FIG. 25 provided in a sheet metal body frame 78 configured to support a step support frame 76b extending forward is inserted. Of the vehicle body frame 79 made of sheet metal facing the vehicle body and connected to the pair of left and right vehicle body main frames 5 on the front side of the vehicle body, the step support frame 76b is supported by projecting from the vehicle body main frame 5 to the vehicle body lateral outer side. 26 is inserted into a through-hole 79a facing the vehicle body as shown in FIG. It is disposed laterally outside the body main frame 5.
[0075]
As shown in FIG. 27, the muffler cover 13 is attached to a cover support portion 12 a provided on a peripheral wall portion of the engine exhaust muffler 12 with an attaching screw. That is, the engine exhaust muffler 12 is attached by using a cover support portion 12a provided so as to attach a contact prevention cover 15 as shown in FIG.
[0076]
As shown in FIGS. 11 and 12, the muffler cover 13 is formed in a cylindrical shape having an opening 13 a that opens an end opposite to the side where the intake duct 68 communicates, and the peripheral wall of the muffler cover 13. 13b has a notch 13c connected to the opening 13a.
That is, the engine exhaust muffler 12 is of the type in which the exhaust pipe 16 from the engine 11 extends from above with respect to the muffler 12 and is connected to the rear end side of the muffler 12 as shown in FIGS. 11 and FIG. 12, etc., the exhaust pipe 17 of the muffler 12 can be used with any of the types in which the exhaust pipe 17 extends downward from the rear end side of the muffler 12.
That is, as shown in FIGS. 29, 31, and 32, in the case of the engine exhaust muffler 12 in which the exhaust pipe 16 from the engine 11 is connected to the muffler 12 from above, the notch 13c is turned sideways inside. The exhaust pipe 16 from the engine 11 is attached to the muffler 12 so that the exhaust pipe 16 passes through the notch 13c. As shown in FIGS. 10, 11, and 27, when the exhaust pipe 17 of the muffler 12 is an engine exhaust muffler 12 extending from the rear end side of the muffler 12, the notch 13 c faces downward and the muffler 12 The exhaust pipe 17 is attached to the muffler 12 such that the outlet of the exhaust pipe 17 faces the notch 13c.
[0077]
As shown in FIGS. 6 and 9, in the feeding case 42 of each feeding device 40, a round pipe material provided so as to guide the shutter 45 that is put in and out of the shutter chamber 45a. The hot air ejection holes 111a are provided at a plurality of locations in the portion of the guide member 111 located inside the feeding case 42. As shown in FIGS. 7, 13, 24, and the like, the hot air intake port located at the end portion of each guide case 42 that protrudes outward from the feed case 42 of the guide member 111 is formed by the introduction pipe 112. The hot air outlet 65b provided in the introduction duct portion 67 of the air duct 65 is connected.
[0078]
That is, a part of the transported hot air supplied from the blower 62 is taken out from the hot air outlet 67b of the air duct 65 and supplied to the guide member 111 through the introduction pipe 112, and from each hot air outlet 111a of the guide member 111. By feeding the inside of the feeding case 42, the inside of the feeding case 42 or the fertilizer is dried, and the fertilizer is blocked from clogging due to a bridge phenomenon inside the feeding case 42.
[0079]
As shown in FIG. 15, a portion connected to the wind inlet 48 of each of the two fertilizer feeding devices 40 located on the outermost lateral side of the distribution duct portion 66 in the air duct 65, and the two The distribution duct portion 66 is made as a separate part between each of the two fertilizer feeding devices 40 inside the vehicle body adjacent to the fertilizer feeding device 40 and connected to the air intake 48. with a 3-described throttle member 113 and interior and is provided with a throttle portion 114, the aperture 114, the central portion 66a in branched to flow into both ends of the distribution duct 66 of the distribution duct 66 A fertilizer feeding device 40 on the inner side of the vehicle body that gives flow resistance to the incoming fertilizer conveying wind and the fertilizer conveying wind is connected to the windward side of the distribution duct portion 66, and a fertilizer on the outer side of the vehicle body that is connected to the leeward side of the fertilizer conveying wind. Repetitive So that it flows as much as possible uniformly distributed and with device 40.
[0080]
As shown in FIG. 33, a covering tool 177 is attached in the vicinity of the groove fertilizer 70 of the grounding float 21. This earth covering tool 177 fills the groove after the groove fertilizer 70 supplies fertilizer, and is configured as shown in FIG.
That is, the horizontal plate portion 177a whose front end side is fixed to the support portion of the grounding float 21 by a mounting screw, and the end portion of the plate body forming the horizontal plate portion 177a are bent at the folding line 177b. Thus, the horizontal plate portion 177a is configured to include an inclined plate portion 177c that is manufactured so as to extend obliquely downward from one end portion in the horizontal direction of the planting machine body. As a result, the covering material 177 pushes the mud after the groove-growing fertilizer 70 has passed through the inclined plate portion 177c and the horizontal plate portion 177a into the groove after supplying the fertilizer and drops it so that the fertilizer enters the mud. Fill the groove.
[0081]
[Another embodiment]
[0082]
FIG. 35 shows a distribution duct portion 66 of a blower duct 65 having another embodiment. In this distribution duct portion 66, two fertilizer feeding devices located on the outermost side of the distribution duct 66. A pipe member forming a portion positioned between a portion connected to the wind intake port 40 of 40 and a portion connected to the wind intake port 48 of the two fertilizer feeding devices 40 inside the vehicle body; The throttle portion 114 is integrally formed.
[0083]
FIG. 36 shows a fertilizer applying apparatus 40 having a further embodiment. In this fertilizer applying apparatus 40, the distance L1 between two fertilizer feeding cases 42 located on the inner side of the vehicle body is the outermost side of the vehicle body. A plurality of fertilizer feeding devices 40 are arranged side by side in the lateral direction of the vehicle body so as to be larger than the distance L2 between the fertilizer feeding case 42 located and the fertilizer feeding case 42 inside the vehicle body adjacent thereto. That is, the central portion 66a for branching the conveying wind from the blower 62 to the both sides of the vehicle body is easily arranged in the air duct 65 while making the overall width of the fertilizer supply unit 30 as narrow as possible. It is.
[0084]
FIG. 37 shows a fertilizing device S of a rice transplanter provided with still another embodiment, and this fertilizing device S corresponds to the seedling planting device 20 for 10-row planting. Like each fertilizer feeding device 40, two fertilizer feeding devices 40 are constituted by one fertilizer feeding case 42 provided with two fertilizer discharge ports 41, and six sets of these two fertilizer feeding devices 40 are arranged in the lateral direction of the vehicle body. Are arranged side by side, and configured so as not to use one fertilizer feeding device 40 of each of the two sets of fertilizer feeding devices located on the innermost side of the vehicle body, and configured to apply fertilization to each of the ten planted seedlings.
[0085]
FIG. 38 shows a fertilizer S having a blower duct 65 provided with still another embodiment. In this fertilizer S, a plurality of blower ducts 65 are respectively connected from the outlet 62b of the blower 62. Separately, one air duct 65 is connected to the air intake 48 of the two fertilizer feeding devices 40, thereby distributing the fertilizer conveying wind from one blower 62 to the plurality of fertilizer feeding devices 40. To supply.
[0086]
In the above embodiment, the blower 61 is assembled with the electric motor 63 of the blower 61 penetrating the sheet metal body frame 75. However, when the intake opening 62a of the blower 61 protrudes long, the intake opening 62a. Alternatively, the blower 61 may be assembled with the sheet metal body frame 75 penetrating the sheet metal body.
[Brief description of the drawings]
[Fig. 1] Side view of the entire riding rice transplanter with fertilizer application [Fig. 2] Plan view of the entire riding rice transplanter with fertilizer application [Fig. 3] Side view of the seedling planting device [Fig. 4] Rear view [Fig. 5] Side view of fertilizer supply unit [Fig. 6] Vertical side view of fertilizer feeding device [Fig. 7] Vertical rear view of fertilizer feeding device [Fig. 8] Front view of fertilizer feeding device [Fig. 9] Plan view inside the case [Fig. 10] Plan view of the blower unit [Fig. 11] Side view of the blower unit [Fig. 12] Cross-sectional view of the tip of the intake duct and the muffler cover [Fig. 13] Left side of the blower installation unit [Fig. 14] Right side view of the blower arrangement portion [Fig. 15] Plan view of the blower arrangement portion [Fig. 16] Plan view of the small number of fertilizer clutch [Fig. 17] Side view of the fertilization amount adjusting mechanism [Fig. Cross section of fertilizer application adjustment mechanism [Fig. 19] Plan view of link mechanism [Fig. 20] Air venting machine FIG. 21 is a plan view of the feed support frame. FIG. 22 is a side view of the tank support structure by the tank support. FIG. 23 is a connection between the tank column and the feed support frame. Fig. 24 is a plan view showing the structure. Fig. 24 is a side view of the fertilizer feeding device. Fig. 25 is a rear view showing the intake duct penetration structure of the fuselage frame. Fig. 26 is a rear view showing the intake duct penetration structure of the fuselage frame. Cross-sectional view of the exhaust muffler at the muffler cover installation part [FIG. 28] Explanatory drawing of the contact prevention cover [FIG. 29] Cross-sectional view of the engine exhaust muffler at the muffler cover installation part [FIG. 30] Cross-sectional view [Fig. 31] Side view showing how to install the muffler cover [Fig. 32] Plan view showing how to install the muffler cover [Fig. 33] Plan view of the earthing float at the cover covering portion [Fig. 33 is a cross-sectional view taken along the line AA in FIG. 33. FIG. 35 is a cross-sectional view of the distribution duct portion showing another embodiment. FIG. 36 is a schematic plan view of a fertilizer feeding device arrangement structure including another embodiment. FIG. 37 is a schematic plan view of a fertilizer feeding device arrangement structure having still another actual form. FIG. 38 is a schematic view of a blower unit having another embodiment.
4 Driver's seat 12 Engine exhaust muffler 14 Rubber cylinder 20 Seedling planting device 22 Seedling planting mechanism 30 Fertilizer supply unit 40 Fertilizer feeding device 61 Blower 62 Blower 62a Inlet 62b Outlet 62c Blower's rotating shaft 63 Electric motor 65 Blower Duct 66 Distribution duct portion 66a Central portion of distribution duct portion 67 Introduction duct portion 67a Introduction duct portion introduction port 71 Body cover 75 Sheet metal body frame 78, 79 Body frame S Fertilizer

Claims (3)

At the rear of the self-propelled vehicle body, a seedling planting device having a plurality of seedling planting mechanisms arranged in the lateral direction of the aircraft is connected to be freely movable up and down, and separately around the seedling planting location by the plurality of seedling planting mechanisms. The fertilizer supply device of the fertilizer supply device is a riding type rice transplanter with a fertilizer provided in the rear part of the self-propelled vehicle body,
A blower provided with a blower that supplies fertilizer conveying air to the fertilizer feeding device in the fertilizer supply device section and an electric motor that drives the blower in a state in which the blower is not separated , The blower is arranged between the sheet metal body frames so that the blower inlet or the electric motor overlaps with the pair of left and right sheet metal body frames below the driver seat in plan view or rear view, and the blower blows out. A riding type rice transplanter with a fertilizer device in which a suction port of the blower or an electric motor is passed through a sheet metal body frame so that the mouth is positioned at the center of the left and right of the self-propelled vehicle body . A central portion in a distribution duct portion along a vehicle body lateral direction of a blower duct that distributes and supplies fertilizer conveyance air to the fertilizer feeding device, and an introduction duct portion extending downward from the central portion toward the vehicle body, In addition to being molded into a single part,
The riding type rice transplanter with a fertilizer applicator according to claim 1, wherein the introduction port of the introduction duct portion and the blower outlet of the blower are connected to each other below a vehicle body cover covering an upper portion of a rear portion of the vehicle body frame.   The riding type rice transplanter with a fertilizer applicator according to claim 1 or 2, further comprising a rubber cylinder in the middle of a path for supplying air heated around the engine exhaust muffler to the air inlet of the blower.

Images