KR101165501B1 - Supply device of material for agriculture and supply device of powder - Google Patents

Abstract

An object of the present invention is to provide an agricultural material supply apparatus capable of enlarging the adjustment range of the feeding amount without causing an increase in the size of the driving member by making a simple improvement in the support form of the driving member.

In order to solve this problem, a fertilizer feeding unit 21 for supplying the stored fertilizer from the feeding case 20 to a predetermined position is provided, and a driving member 61 for driving the fertilizer feeding unit 21 is provided to provide a driving member ( The magnitude | size of the fertilizer supply amount of the fertilizer feeding part 21 is set according to the magnitude | size of the drive stroke of the output part 61B of 61). The rocking support point 68 is provided between the input portion 61A and the output portion 61B of the drive member 61 by linking the output portion 61B of the drive member 61 with the fertilizer dispensing portion 21 so that the rocking support point ( The rocking support point position changing means A is provided so that the position of 68 may be changed along the longitudinal direction of the drive member 61, and the drive member 61 may be driven.

In addition, another object of the present invention is to make it possible to use the wind for conveying the wind of the conveyed object to take out the residual granules, to avoid the situation that the powdered workpiece contained in the residual granules is blown by the conveying wind The deterioration of the working environment can be avoided.

In order to solve this problem, it is possible to send separately the transported object to the supply path which conveys the to-be-contained material which consists of granules by wind conveyance, and the discharge path which conveys the conveyed object which is made of granule body by wind conveyance separately from the supply path, respectively. At the same time, a separating means 146 for separating the conveying wind and the conveyed object was provided on the discharge path side.

Drawing case, fertilizer feeding section, output section, input section, drive member, conveyed object, wind conveyance, residual powder, separation means, discharge path

Description

Agricultural material feeder and granular feeder {SUPPLY DEVICE OF MATERIAL FOR AGRICULTURE AND SUPPLY DEVICE OF POWDER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an agricultural material supply device such as a fertilizer device for supplying fertilizers and drugs as agricultural materials to a suitable place such as arable land, and a seeding device for direct seeding of agricultural material.

Moreover, this invention is provided with the supply path which conveys the to-be-carried material which consists of granules by wind conveyance, and the discharge path | route which conveys a conveyed object by wind conveyance separately from the supply path, and the residual granules in the storage part of a granular body are provided. It is related with the improvement of the granular material supply apparatus which comprised the sieve so that extraction is possible by wind power.

As an agricultural material supply device of this kind, there is a fertilizer device mounted on a rice transplanter. In this fertilizing apparatus, the crank drive arm (information number: 49) provided in the rear end of the PTO shaft (information number: 45) extended rearward from the mission case (information number: 10), and the body side The operation arm (Publication No. 47) as a drive member which drives the feeding mechanism (Publication No. 22) which draws out the mounted fertilizer is connected with the linkage rod (Publication No. 48).

Thereby, the drive arm was driven by the linkage rod to drive the feeding mechanism to feed the fertilizer.

Then, in order to be able to change the linking position of the operation arm and the linkage rod along the longitudinal direction of the operation arm, recesses (position number: 74) for positioning are formed in a plurality of portions on the lower surface of the operation arm, According to the change of the linkage position, the drive stroke of the operation arm was changed to adjust the amount of feeding.

In addition, as the granular material supplying device, one described in [1] has conventionally been known as a granular material supplying device having a discharge path by wind conveyance separately from the supplying path.

[1] a blower pipe having a blower pipe as a supply path for conveying the conveyed object made of the granular material by wind conveyance, and a return pipe as a discharge path for conveying the conveyed object made of the granular material by wind conveyance separately from the supply path By switching the blowing direction of the blowing fan to either the pipe side or the collecting pipe side, it is possible to select whether to supply the conveyed object to the supply path or to take it out of the discharge path (see Patent Document 2, for example).

Prior art literature

Patent Document 1: Japanese Patent Application Publication No. 2007-267615

Patent Document 2: Japanese Patent Application Laid-Open No. 2008-29214 (paragraph "0008", Fig. 19, Fig. 20)

Although the adjustment of the feeding amount is possible by the configuration of the fertilizer, it is necessary to lengthen the length from the swing support point of the operation arm in order to further expand the adjustment range.

However, in order to increase the length of the operation arm, it is necessary to increase the member strength and increase the size. However, as the operation arm, it is necessary to use an expensive material that is of excessive quality, and can be employed to lengthen the operation arm. There is a limit.

On the other hand, in order to have the structure which changes the drive stroke of the crank mechanism provided in the PTO shaft, there exist a surface which is difficult to adjust a variable, for example, for the reason that a crank mechanism is located below the base frame, Variable adjustment of the mechanism was also difficult to adopt.

An object of the present invention is to provide an agricultural material supply apparatus capable of enlarging the adjustment range of the feeding amount without causing the enlargement of the driving member by making a simple improvement on the support form of the driving member.

Further, as in the prior art described in [1], if the blowing direction of the blowing fan is switched to either the blowing pipe side or the collecting pipe side, it is possible to select whether to supply the conveyed object to the supply path or to take it out of the discharge path. It is useful in that the transported material remaining in the unit can be easily discharged using wind power.

However, the conveyed material remaining in the storage portion is not only granular in a predetermined size, but also finely crushed in powder form during conveyance in any case. For this reason, when receiving the to-be-contained object taken out by wind conveyance in any container, the fine powdery thing in a to-be-conveyed object might fly up and the working environment might deteriorate.

It is still another object of the present invention to provide a granular material supply apparatus having a structure in which supply of a conveyed object is carried out by wind conveyance, wherein the wind for conveying the wind can be used for taking out the residual granular material. It is in the point which makes it possible to avoid the deterioration of a work environment by avoiding the situation where the to-be-processed powder contained may fly by a conveying wind.

〔Configuration〕

A feature configuration of the invention according to claim 1 is an agricultural material supply apparatus having a supply mechanism for supplying stored agricultural material from a storage portion to a predetermined position, comprising: a driving member for driving the supply mechanism; By adjusting the driving stroke of the output portion of the output mechanism, the agricultural material supply amount of the supply mechanism is adjusted, the output portion of the drive member is connected to the supply mechanism, and a rocking support point is provided between the input portion and the output portion of the drive member. In addition, the rocking support point position changing means is provided to change the position of the rocking support point along the longitudinal direction of the drive member to drive rocking of the drive member. The effect is as follows.

 〔Action〕

When the swing support point position of the drive member is changed by the swing support point position changing means, the ratio of the input link length from the input portion to the swing support point in the drive member and the output link length from the swing support point to the output portion is changed. As a result, the driving stroke of the output unit with respect to the stroke of the input unit is changed.

In addition, by changing the swing support point position, not only the input side link length is changed, but also the output side link length is varied, so as to change the range of the link ratio, as described in the background art, to change the swing arm length (corresponding to the input side link length). It can employ | adopt large compared with what was made, and the adjustment range of the drive stroke of the output part of a drive member can be enlarged.

 〔effect〕

In this way, it is possible to increase the adjustment range of the drive stroke of the drive member without changing the length by avoiding the enlargement of the drive member itself, thereby making it possible to easily adjust the feeding of the required agricultural material.

 〔Configuration〕

The characteristic constitution of the invention according to claim 2 is that the swing support point position changing means is configured to be moved to a position where the position of the swing support point is as close as possible to the output part, and the effect thereof is as follows. .

 [Action effect]

Since the swing support point position of the drive member can be positioned as close as possible to the output part, the link length from the swing support point to the output part is extremely short, and the driving stroke of the output part is approximately zero.

Thereby, it becomes possible to exhibit the state which does not drive a feeding mechanism substantially without interrupting the power transmission to an input part, and can improve the applicability of a feeding mechanism.

 〔Configuration〕

A feature configuration of the invention according to claim 3 is characterized in that the swing support point position changing means comprises a moving member for moving the position of the swing support point, and an adjusting operation tool for driving the moving member, The structure of the present invention is configured to be detachable or folded to be disconnected from each other, and its effects are as follows.

 [Action effect]

Since the control mechanism for manipulating the position of the swing support point of the drive member is removed or is foldable, the control mechanism may be disturbed by removing the control mechanism when the agricultural material is being worked on. It is easy to handle.

Moreover, in order to achieve the said another objective, the granule supply apparatus which concerns on this invention takes the following technical means.

[First Solution]

The granular material supply apparatus of this invention is a supply path which conveys the to-be-carried material which consists of granular material by wind conveyance, and the discharge path which conveys the to-be-contained object which consists of granular bodies separately from the supply path by wind conveyance, And separating means for separating the conveying wind and the conveyed object on the discharge path side, respectively.

 [Operations and Effects of the Invention According to the First Solution]

As described above, a discharge path for conveying the conveyed object by wind conveyance is provided separately from the supply path for conveying the conveyed object made of the granules by wind conveyance, and is retained in the storage portion using the conveyance wind for wind conveyance. In the powder-supply supply apparatus which made it easy to discharge the to-be-carried object, since the separating means which isolate | separates conveying wind and a to-be-carried object was provided in the said discharge path side, it is possible to take out a conveying wind and a to-be-carried object separately. Become.

Therefore, the conveyed object is transported by wind and discharged, and the conveyed object and the conveyed wind can be taken out separately from the gaseous fluid carrying the conveyed object in the conveying wind by separating means, so that the powdered substance in the conveyed object can be taken out. There is less possibility that it may cause the situation to fly by conveying wind, and there exists an advantage that it is easy to avoid deterioration of a work environment.

 [Second solution]

In the invention according to the second solving means, in the above-described powder-distributing device, the separating means is constituted by a member having a vent hole having a dimension smaller than the particle size of the conveyed object.

 [Operations and Effects of the Invention According to the Second Solution]

In the invention according to the second solving means, since the separating means is constituted by a member having a permeation hole having a dimension smaller than the particle diameter of the conveyed object, for example, the separating means is constituted by a centrifugal separation mechanism such as a cyclone or the like. The separation means itself can be simply structured as compared with the case of forming a large number of impingement plates, and a complicated structure.

 [Third solution]

In the invention according to the third solution means, in the above-mentioned powder-liquid supply apparatus, the conveyance direction terminal part of the discharge duct which comprises a discharge path was comprised so that attachment or detachment or a position change were possible with respect to the discharge duct part of a conveyance direction upper side, It is characterized by the above-mentioned. do.

 [Operations and Effects of the Invention According to the Third Solution]

In the invention according to the third solution means, the conveying direction end portion of the discharging duct constituting the discharging path is configured to be detachable or repositionable with respect to the conveying duct above the conveying direction. The workability at the time, the operability at the time of discharging and the like can be selected in a suitable state.

That is, when the conveyance direction end part of a discharge duct is detachably comprised, since the protrusion degree of the discharge duct to the conveyance direction end side can be suppressed, in the state which does not use a discharge duct, ie, a normal supply path with a high frequency of use, In the conveyed object to be supplied, the conveying direction end portion of the discharge duct can be removed, and work can be performed in a state where the conveying direction end portion is not disturbed.

Moreover, if the conveyance direction terminal part of a discharge duct is comprised so that a position can be changed, when discharging a residual conveyed object from a discharge duct, the terminal part of the discharge duct will be changed to the most suitable position in carrying out work, and workability | operativity will be performed. I can do it high.

 [4th solution]

In the invention according to the fourth solving means, in the above-mentioned powder-liquid supply apparatus, the air supply and distribution means which performs supply discharge of the conveyance wind to a discharge path, and for joining which combines a conveyed object with conveyance wind in multiple parts of the said discharge path | route It is provided with the opening-closing means for merging conveyed material provided in the upper position of each path | route, The operation part of the said ventilation supply and distribution means, and the operation part of the said opening-closing means for merging conveyed object are provided in the conveyance terminal end side of the said discharge path | route. There is this.

 [Operations and Effects of the Invention According to the Fourth Solution]

In the invention according to the fourth solution, each operation portion of the blowing supply / distribution means for supplying and discharging the conveying wind to the discharge path, and the opening / closing means for joining the conveyed material, which is provided at an upper side position of the confluence path, is conveyed at the end of the discharge path. Since it is installed in the air supply / distribution means and the opening / closing means for consolidation of the conveyed object, it is not necessary for the operator to go to the vicinity of the ventilation supply / distribution means or the opening / closing means for confluence of the conveyed objects, and to operate it. Can be operated while in the position. Therefore, there is an advantage that the air blowing and supply means and the opening / closing means for joining the conveyed object can be used on the traveling vehicle body and can be used with high operability when operating from the transverse side of the vehicle body.

 [5th solution]

In the invention according to the fifth solution, in the above-described powder-distributor supply apparatus, the conveyed material is joined to the discharge duct constituting the discharge path on the upper side in the blowing direction than the separating means and on the downstream side with respect to the conveying wind in the discharge duct. It is characterized by including a flow path opening and closing means which is switchable below the site in a state of allowing the flow to the downstream side of the conveying wind in the discharge duct and in a restricting state.

 [Operations and Effects of the Invention According to the Fifth Solution]

In the invention according to the fifth solution means, since the flow path opening and closing means is provided on the lower side of the conveyance lower than the conveyed object merging portion on the most downstream side with respect to the conveying wind in the discharge duct, the air is blown to the discharge duct. The operation | work which takes out a conveyed material and the operation | movement which wash | cleans and stores the storage part of a to-be-conveyed object can be selected and used.

That is, in the operation of taking out the residual conveyed object remaining in the storage portion, the conveyed object can be taken out from the discharge duct end by carrying the wind conveyance of the conveyed object with the flow path opening / closing means open. In the meantime, when the reservoir is washed with water and dried, the flow path opening and closing means is blocked and the carrier wind can be sent to each reservoir by forced air drying from the discharge duct located above the blocked portion. Thereby, there exists an advantage which can avoid the trouble and time-consuming operation | work which decompose | disassembles a discharge duct and each storage part, and washes and washes and dries.

 [Sixth solution]

In the invention according to the sixth solution, in the above-described powder-liquid supply device, the flow path opening and closing means is constituted by a rotary valve that is substantially perpendicular to the conveyance direction of the conveyed object and rotates around a horizontal axis. There is this.

 [Operations and Effects of the Invention According to the Sixth Solution]

In the invention according to the sixth solution, the flow path opening and closing means is constituted by a rotary valve that is substantially perpendicular to the conveyance direction of the conveyed object and rotates around the horizontal axis, so that another flow path is provided, for example, to switch the flow path. As compared with the case of employing a structure such as providing a shutter that traverses the flow path vertically, the overall structure is simple and there is an advantage that the seal can be simply configured.

Moreover, since the axis of a rotary valve is a horizontal axis, it can arrange | position in the state which removed the axis of a rotary valve from the inner bottom face side of the discharge duct arrange | positioned in the horizontal direction. Therefore, when the relatively heavy granular material in the conveyed object carried by the wind is conveyed along the inner bottom face of the discharge duct, the axial part of a rotary valve can avoid that flow resistance and maintains a favorable conveyance state in the discharge duct. It is possible to obtain a powder supply device that is easy to do.

 [Seventh solution]

In the invention according to the seventh solution, in the above-described powder-liquid supply device, a blowing supply / distribution means for supplying and discharging the conveying wind to the conveying start end portion of the discharging duct is provided, and is avoided by the conveying wind at a plurality of sites in the discharging duct. The opening and closing means for merging the conveyed object is provided in the upper position of each joining path for joining the conveyed objects, and these blown air supply and distribution means and the opening and closing means for merging the conveyed object are accompanied by a flow path blocking operation of the flow channel opening and closing means of the conveyance downward side. The air supply and distribution means and the opening / closing means for joining the conveyed object are characterized in that they are configured to be collectively operated so as to be switched to a state in which the air can be blown in the discharge duct.

 [Operations and Effects of the Invention According to the Seventh Solution]

In the invention according to the seventh solution, the collective operation is configured such that the blower supply / distribution means and the open / close means for joining the conveyed object can be switched in a state capable of blowing air in the discharge duct together with the channel closing operation of the channel opening / closing means. Therefore, the air supply / distribution means and the opening / closing means for consolidation of the conveyed object can be operated at once without having to operate each separately. In addition, the air flow opening and closing means and the opening and closing means for joining the conveyed material are switched together in a state capable of blowing air in the discharge duct, with the flow path closing operation of the flow path opening and closing means. When the closing operation is performed, the blowing supply / distribution means and the opening / closing means for joining the conveyed object can be switched to the side where the air can be blown without erroneous operation, so that the dry air can be supplied.

According to the present invention, by simply improving the support form of the drive member, it is possible to provide an agricultural material supply apparatus capable of enlarging the adjustment range of the feeding amount without causing an increase in the size of the drive member.

Further, according to the present invention, in making the wind for conveying the wind of the conveyed object to be used for taking out the residual granular material, work to avoid the situation in which the powdered to-be-processed object contained in the residual granular material is blown by the conveying wind Deterioration of the environment can be avoided.

[First Embodiment]

EMBODIMENT OF THE INVENTION Hereinafter, an example of embodiment of this invention is described based on drawing.

As shown in FIG. 1, the engine 13 is located on the front side of the body frame 10 of the traveling body 1 having a pair of left and right front wheels 11 and a pair of left and right rear wheels 12 capable of steering operation. ) And a mission case (14), the control unit (15) equipped with a steering wheel or the like and a driver's seat (16) equipped with a steering wheel or the like in the center of the traveling body (1), and constituting the traveling body (1). In the rear part of 10, the fertilizer 2 which is an example of the supply apparatus which supplies the fertilizer as agricultural materials is arrange | positioned.

On the left and right sides of the engine 13 and between the control unit 15 and the driver's seat 16, and on the left and right sides of the driver's seat 16, a driver's step step 17 having an almost flat step portion is provided. The spare mother mounting table 18 is arrange | positioned at the left-right part which is further outer side of the step 17, and opposes the mounting site | part of the engine 13. As shown in FIG.

In the rear of the traveling body 1, the link mechanism 19 provided with the lift cylinder 19a is connected so that a lifting operation can be carried out, the planting device 4 is attached to the link mechanism 19, and the fertilizer device 2 is mounted. It consists of a passenger rice transplanter.

 [Fertilizer]

The fertilizing apparatus 2 is provided with the feeding case 20 made of transparent resin which stores a fertilizer, and the fertilizer feeding part 21 as four supply mechanisms arrange | positioned under the feeding case 20, These feeding As shown in FIGS. 1, 3, and 4, the case 20 and the fertilizer dispensing portion 21 are located near the rear side of the driver's seat 16 at the rear portion of the traveling body 1. It is supported by the support frame 22 provided in the upper part of (10). The fertilizer extracted from the fertilizer dispensing unit 21 is supplied to the arable land from a furrow opener 45 serving as a supply unit installed on the planting device 4 side via a fertilizer conveying path by the amount of air flow by air blowing means. It is configured to be supplied.

The support frame 22 stands on the left and right pairs of blower support plates 22a which are mounted on the left and right pairs of main frames 10A of the vehicle body frame 10, and the props 22b which are installed on the upper side of the blower support plates 22a. ) And a horizontally long frame 22c spanning the upper end side of the left and right struts 22b. The rear end side of the blower supporting plate 22a is connected to one end side of the link mechanism 19 for mounting the planting device 4 in a liftable manner.

As shown in FIG. 8 and FIG. 9, the fertilizer dispensing unit 21 includes a dispensing roll 23 having a plurality of concave portions 23a for fertilizer introduction along the circumferential direction on the outer circumference thereof, and the fertilizer of the dispensing case 20. It is arrange | positioned rotatably below 20 C of feeding ports, and above funnel part 20D.

In addition, the code | symbol 23b in a figure is a brush which slides in contact with the circumferential surface of the feed roll 23, and acts as a surface cutter.

As a result, the fertilizer is introduced into the recess 23a of the feeding roll 23 from the feeding case 20, and the fertilizer is fed to the funnel portion 20D by the intermittent rotation of the feeding shaft 26. And the high pressure wind from the electric blower 30 of the air blow means mentioned later is supplied to the funnel part 20D through the blowing duct apparatus 31, and fertilizer is supplied through the fertilizer conveyance pipe 46 by the high pressure wind. The fertilizer is promptly supplied to the crook 45, and the fertilizer is sent to the grooves formed in the field ground by the crook 45 to perform the fertilizing operation.

As shown in FIG. 8, the switching plate 28 oscillates around a horizontal axis in the fertilizer discharge port 25 formed in the front side of the fertilizer dispensing part 21 of the fertilizer dispensing opening 20C of the feeding case 20. As shown in FIG. It is supported as possible, and the discharge hose 29 extends downward from the lower side of the switching plate 28. In normal planting work, the switching plate 28 is operated in the closed position shown by the solid line of FIG. 8, and the fertilizer from the feeding case 20 is fed to the funnel part 20D. In the case where the normal planting work is finished, the switching plate 28 is opened in the open position while the driving of the electric blower 30 and the planting device 4 (specifically, the drive of the PTO shaft 57) is stopped. When operated, fertilizer remaining in the feeding case 20 enters the discharge hose 29 and is discharged.

 [Wind means]

Air flow means for conveying the fertilizer drawn from the fertilizer 2 to the planting apparatus 4 side by wind power is comprised as follows.

As shown in FIG. 1 and FIG. 3, the electric blower 30 supported by the right and left pair of blower support plates 22a and driven by the electric motor 30A, and the outside air to the electric blower 30 are shown. Is provided, and the blowing duct apparatus 31 which flows a conveyance wind is provided. And the blower duct apparatus 31 is connected to the intake part 32 for introducing and supplying outside air to the electric blower 30, and the wind blown by the electric blower 30 connected to the outlet side of the electric blower 30. It is comprised by the pipe-shaped air sending part 33 for supplying to each funnel part 20D.

As shown in FIGS. 2 and 3, the intake unit 32 connects the proximal end side to the intake port of the vehicle body transverse side outward of the electric blower 30, and is near the transverse side of the engine 13 and is a muffler 9 at the distal end side. It is arranged in a state where the inlet port 32a is positioned at the rear portion of the circumference, and sucks the heat around the engine 13 and the arrangement of the muffler 9.

The air flow part 33 connected to the exhaust port side of the electric blower 30 is connected to the bifurcation branch connection pipe 34 of which the downstream side branched left and right, and is connected to the edge part of this branch connection pipe 34, and is transverse to a vehicle body. And a plurality of branch discharges for discharging the fertilizer to each of the fertilizer supply sites of the seedling apparatus 4 described later in the longitudinal direction of the transverse blower tube 35, which is arranged in the longitudinal direction. The pipe 36 is provided.

 [Planting device]

As shown in Figs. 1 and 4, the planting device 4 is composed of six tanks, the rotation is supported on the left and right sides of the three planting transmission case 40, the planting transmission case 40 so as to be rotationally driven. It consists of a case 41, a pair of planting claws 42 arrange | positioned at the both ends of the rotating case 41, three ground floats 43, a mother mounting base 44, etc.

In the fertilizer supply path from the fertilizer device 2 to the planting device 4, the ends from the fertilizer supply device 4 to the planting device 4 are arranged so as to be positioned one by one in the vicinity of the planting site by the planting hooks 42, and the ground float 43. Is connected to a plurality of passages (45) provided in each).

Specifically, the fertilizer conveyance pipes 46 connected to the passage machine 45 on the planting device 4 side are separately connected to the plurality of branch discharge pipes 36 of the air blowing means.

The dividing structure of the feeding case 20 will be described. As shown in FIG. 10, the upper feeding case 20A and the lower feeding case 20B are configured such that the feeding case 20 is divided based on the axis Z of the feeding shaft 26. The configuration for setting the upper and lower side feeding cases 20A and 20B is as follows.

That is, as shown in FIGS. 10 and 11, the rectangular flange portion 20a is formed at the lower end position of the upper feeding case 20A, and the axis line of the feeding shaft 26 in the flange portion 20a is formed. A plate-shaped bracket portion 20b is provided at both ends of one long side portion with Z) interposed therebetween. The bracket part 20b is formed in the shape bent downward, and the hollow coupling hole 20c is provided. A frame frame is formed in the state which surrounds the hollow coupling hole 20c, and the lower part support frame part 20d which hangs and loads the coupling piece 20f mentioned later is formed in the lower end of the frame frame.

On the other hand, as shown in FIGS. 10 and 11, a rectangular flange portion 20e is formed at the upper end position of the lower feeding case 20B, and the axis line of the feeding shaft 26 in the flange portion 20e is formed. 20 f of plate-shaped engagement pieces protrude from the both ends of one long side part across Z). A concave mounting surface 20g which is concave upward is formed on the lower surface of the engaging piece 20f, and a mechanism is provided in which the engaging state is stabilized when the engaging piece 20f is mounted on the lower end supporting frame portion 20d.

Moreover, the lock hole 20E which maintains the closed state of the upper and lower side feeding cases 20A and 20B is provided in the funnel part 20D of the lower side feeding case 20B so that it can rock. The lock hole 20E couples the lock engaging portion 20h to the flange portion 20a of the upper feeding case 20A to maintain the locked state.

According to the above configuration, in order to set the upper and lower side feeding cases 20A and 20B, as shown in FIG. 10 (b), the coupling piece 20f of the lower side feeding case 20B is placed on the upper side feeding case ( By inserting into the engaging hole 20c of the bracket portion 20b of 20A, the engaging piece 20f can be engaged with the flange portion 20d, and the lower feeding case 20B as shown in FIG. ), The lower feeding case 20B can be set in the upper feeding case 20A by raising the flange portions 20a and 20e.

Conventionally, the connection pin was provided in the rocking support point position of the lower feeding case 20B so that the lower feeding case 20B may be opened downward for maintenance, while connecting the upper and lower feeding cases 20A and 20B.

When such a configuration is taken, it is difficult to obtain durability as the connecting pin, and it is necessary to remove the connecting pin when removing the lower feeding case 20B from the upper feeding case 20A.

On the other hand, as mentioned above, by constructing the coupling structure of the bracket part 20b and the engagement piece 20f, it is not necessary to use the fragile components, such as a connection pin, and the lower draw case 20B is replaced by the upper draw case. Even when removing from 20A, the engaging piece 20f may only be taken out from the bracket portion 20b, and the detachable operation can be easily performed.

Next, the drive selection structure of the feed roll 23 equipped with a pair of left and right is demonstrated. As shown in FIGS. 4 and 6, the funnel portion of the feeding case 20 includes a feeding shaft 26 parallel to the driving shaft 55 that receives power from the PTO shaft 57 by the fertilizer feeding portion 21. It is penetrated and supported at the lower predetermined position of 20D).

The feeding shaft 26 is connected to the large-diameter manual gear portion 26A and the manual gear portion 26A constituting a gear mechanism that receives power from the drive shaft 55 as shown in FIGS. 6 and 9. It is formed by the cylindrical holding part 26B and the elongate shaft part 26C. A hole is formed in the internal space from the manual gear portion 26A to the cylindrical holding portion 26B and the shaft portion 26C, and the hole portion is a large diameter hole portion 26a formed in the manual gear portion 26A. ), The middle diameter hole 26b formed in the cylindrical holding part 26B, and the small diameter hole part 26c formed in the axial part 26C.

A screw insertion hole 26d for screwing and fixing the fixing screw 27 is formed at the end opposite to the manual gear portion 26A.

The key member 74 for power transmission is inserted in this hole part.

Next, the intermediate | middle boss body 75 equipped with the feed roll 23 and externally attached to the feed shaft 26 is demonstrated. As shown in FIG. 9, the intermediate boss body 75 is a pair of the same specification of left and right, and is installed in a butt state. The intermediate boss body 75 is composed of a large diameter cylindrical portion 75A and a small diameter cylindrical portion 75B, and in the intermediate boss body 75 positioned on the manual gear portion side, the cylindrical holding portion of the feeding shaft 26 is provided. The large-diameter holding hole 75a holding the 26B inside and holding it, and the small-diameter holding hole 75b holding the shaft-shaped portion 26C of the feeding shaft 26 inside and holding it therein are formed continuously. In the intermediate | middle boss body 75 located in the edge part opposite to a manual-gear part side, the small diameter holding hole 75b which pinches and holds the axial-shaped part 26C of the feeding | feeding-shaft 26 inside is formed.

The pair of intermediate bosses 75 are supported by boss portions 20F formed on both left and right ends of the upper and lower feeding cases 20A and 20B, and the seal 20G is mounted inside the support position.

And the key groove 75c which draws inwards by a predetermined length inward from the butt end is formed in the inner peripheral surface of the small diameter holding hole 75b of the butt end of a pair of intermediate | middle boss body 75, respectively. Moreover, the spring ball mechanism 75d for positioning is provided in the inner peripheral surface of the small diameter holding hole 75b of the intermediate | middle boss body 75 located in the manual gear part side.

The key member 74 will be described. As shown in FIG. 9, the key member 74 is an elongate rod-shaped member, a large diameter disk-shaped handle portion 74A on the front side, and a rod-shaped support portion 74B on the tip side of the handle portion 74A. Further, a semicircular positioning portion 74C and a coupling portion 74D to the key groove 75c are provided at the distal end side of the support portion 74B at the distal end portion 74C. Between the handle portion 74A and the support portion 74B, display portions 74a, 74b, 74c for positioning are provided at three positions in the axial direction. Corresponding to the display portions 74a, 74b, 74c, three engaging holes 74d, 74e, 74f are formed in the downward direction of the positioning portion 74C in the axial direction, and the engaging holes 74d, 74e, 74f are formed. ) Is configured to couple the ball of the spring ball mechanism 75d.

The feeding roll 23 and the intermediate boss body 75 are inserted into the small-diameter cylindrical portion 75B of the intermediate boss body 75 respectively in the supporting holes 23A of the feeding roll 23 having the above-described configuration. Each of them is set to be integrally rotatable. The large cylindrical portion 75A of the intermediate boss body 75 is inserted and loaded into the boss portion 20F of the feeding case 20 having a configuration divided into two upper and lower sides as described later. The key member 74 is inserted into the large diameter holding hole 75a and the small diameter holding hole 75b of the pair of intermediate bosses 75. In the state where the key member 74 is inserted, the engaging portion 74D is engaged with the key groove 75c of the intermediate boss body 75, so that the positioning portion 74C can engage with the spring ball mechanism 75d. Is positioned on.

75 A of large-diameter tubular parts of the intermediate | middle boss body 75 of the edge part on the opposite side to the manual-gear side in the feeding shaft 26 in the state which integrated the feeding shaft 26 in the intermediate boss body 75 in the predetermined position. The stopper member 76 is fitted to the opening portion of the opening, and the stopper member 76 and the feeding shaft 26 are fastened and fixed by the fixing screw 27, and the feeding shaft 26 is removed from the intermediate boss body 75. Prevention is fixed.

The operation method of the key member 74 is demonstrated. As shown in FIG. 9, in the state mounted in the drawing | feeding-out case 20, the pair of intermediate | middle boss body 75 is arrange | positioned in the state which faced the stage parts which formed the key groove 75c, and the key. The engaging portion 74D of the key member 74 is engaged with the groove 75c portion.

Therefore, the engaging portion 74D is aligned with the position corresponding to the end of the manual gear portion 26A by aligning the display portion 74c provided at the position furthest from the handle portion 74A, and the intermediate boss body 75 on the manual gear side. In the case of engaging only the key groove 75c of the ()), the power transmitted to the feeding shaft 26 through the manual gear portion 26A is passive through the key member 74 and the intermediate boss body 75 on the manual gear side. It is transmitted only to the feed roll 23 located on the gear side. In this case, the ball of the spring ball mechanism 75d is engaged with the engaging hole 74f, and the positioning of the key member 74 is maintained.

1st stage press-fitting by holding the grip part 74A of the key member 74, and the engaging part according to the position corresponding to the edge part of the manual-gear part 26A as shown in FIG. When 74D is coupled to the key groove 75c of both intermediate bosses 75, the power transmitted to the feeding shaft 26 through the manual gear portion 26A is the key member 74 and both intermediate bosses. It is transmitted to both feeding rolls 23 through 75. In this case, the ball of the spring ball mechanism 75d is engaged with the engaging hole 74e, and the positioning of the key member 74 is maintained.

It grasps the handle part 74A of the key member 74 again, and presses it once again, and the display part 74a provided in the position closest to the handle part 74A is moved to the position corresponding to the edge part of the manual gear part 26A. When the engaging portion 74D is engaged only with the key groove 75c of the intermediate boss body 75 positioned on the side opposite to the manual gear portion 26A, the coupling portion 74D is transferred to the feeding shaft 26 through the manual gear portion 26A. The supplied power is transmitted to the feeding roll 23 located on the side opposite to the manual gear portion 26A via the key member 74 and the intermediate boss body 75 located on the side opposite to the manual gear portion 26A. In this case, the ball of the spring ball mechanism 75d is engaged with the engaging hole 74d, and the positioning of the key member 74 is maintained.

As described above, the key member 74 is withdrawn from the intermediate boss body 75 so that only one side of the feeding roll 23 is driven to limit the cultivated surface for fertilizing, and the feeding roll 23 is provided. It was possible to constitute a switching mechanism capable of driving both sides of the cultivated ground to fertilize and switch to a state of widening and feeding.

Conventionally, in order to adjust the feeding amount, a ribbon-shaped shutter is separately provided to cover the concave portion 23a for fertilizer introduction, and a part or all of the concave portion 23a for fertilizer introduction is occluded and the fertilizer is injected. To control the supply of fertilizer to the tilled ground. The feeding switch mechanism was configured so that the shutter 23 was removed from the feeding case 20 in the closed state to open the concave portion 23a for fertilizer introduction, to inject fertilizer, and to feed to the tilled ground.

The following problems have been proposed for the configuration using the shutter. That is, since the feeding roll 23 maintains the driving state, there is a fear that the feeding of the fertilizer cannot be stopped immediately even when the shutter is closed.

In addition, since the shutter needs to be inserted and ejected while being filled with fertilizer, the insertion and ejection operation of the shutter is not easy and smooth operability cannot be secured.

On the other hand, since the feeding amount is adjusted using the key member 74, the feeding is stopped immediately when the key member 74 is switched. In addition, since the key member 74 is mounted in the shaft of the feeding shaft 26, the withdrawal operation can be performed without receiving the load of the storage fertilizer, and the operation can be easily performed.

Since no shutter is required, the number of parts can be reduced.

The power transmission structure to the fertilizer dispensing part 21 is as follows. As shown in FIGS. 3 to 5, the rotational movement of the rotary arm 58 which extracts power from the PTO shaft 57 extending rearward to transmit power from the mission case 14 to the seedling apparatus 4 is performed. In order to receive and move up and down, the 1st linkage rod 59 connected with the eccentric position of the rotating arm 58 is provided. A channel-shaped driving member 61 is provided with a flat swing around the lateral support point X, and the upper end of the first linkage rod 59 is connected to an input portion 61A formed at one end of the driving member 61. have. The second linkage rod 62 is extended upward from the output portion 61B at the opposite end with the transverse support point X in the drive member 61 interposed therebetween, so that the input arm of the one-way clutch 60 ( 60A). Power converted into rotational motion by the one-way clutch 60 is transmitted from the drive shaft 55 to the feeding shaft 26 through the gear mechanism.

6 and 7, a transverse connecting pin 69 is mounted on the input portion 61A of the drive member 61 through a pair of side plate portions 61C in the drive member 61. At the same time, the first linkage rod 59 is connected to the connecting pin 70A which is installed and fixed to the lower surface of the connecting pin 69 and is installed over a pair of side plates of the bracket 70. The boss part 59A of the upper end part of the () is externally mounted.

4 and 5, the left and right support frames 66A and 66B are directed downward from the left and right ends of the horizontally long frame 22c supporting the fertilizer feeding unit 21 in the support frame 22, respectively. ) Is extended, and the positioning rod 73 is provided over the lower end portion 66b of the right support frame 66B and the connecting pin 69 that is penetrated and supported by the input portion 61A of the drive member 61. have.

That is, the connecting pin 69 which provided the installation boss parts 73A and 73B in the both ends of the positioning rod 73, and provided one installation boss part 73A to the input part 61A of the drive member 61. To the mounting pin 66c of the lower end portion 66b of the right support frame 66B, and the other mounting boss portion 73B to the outside. The linkage position with the 1st linkage rod 59 of 61 is comprised by the state which does not change.

Next, the swing support point position changing means A will be described. As shown in Figs. 4 and 6, the swing support point position changing means (A) is to change the position of the swing support point of the drive member 61 which is horizontally swinged.

The feed shaft 63 which formed the screw groove 63A, the reciprocating member 64 which reciprocates along the axial direction of the feed shaft 63, and the right support frame 66B in the feed shaft 63. It is comprised by the adjustment operation tool 65 detachably attached to the narrow neck part 63B extended from the front.

The feed shaft 63 is hypothesized over the left and right support frames 66A and 66B extending downward from the left and right ends of the horizontally long frame 22c, respectively, and the lower end boss portions (the left and right support frames 66A and 66B). It is rotatably supported around its own shaft core Y via the bearing 67 held by 66a, 66b.

The reciprocating member 64 is composed of a cylindrical holder portion 64A which is externally fitted to the feed shaft 63 and a channel-shaped suspension member 64B extending downward from the holder portion 64A. . The hanging member 64B forms a pair of lower end plate parts 64a which hold | maintained the fixed space left and right, and has fitted the lower end plate part 64a externally in the state which spans the left and right both sides of the drive member 61. FIG.

As shown in FIG. 4 and FIG. 7, in the pair of side plate portions 61C of the drive member 61, long holes 61a along the longitudinal direction of the side plate portion 61C are formed, respectively. The connecting pin 68 is inserted through the hole 61a to extend across the lower end plate portion 64a of the hanging member 64B. A bearing 68A is externally fitted to the connecting pin 68 so that the bearing 68A is in sliding contact with the ceiling surface forming the internal space of the drive member 61 to facilitate the movement of the reciprocating member 64. have.

This connecting pin 68 constitutes a swing support point of the drive member 61.

As shown in FIGS. 4 and 6, the angle-shaped guide frame 71 is directed toward the right side more than the right side of the right support frame 66B among the left and right support frames 66A and 66B supporting the feed shaft 63. Is installed in a cantilever shape, and a guide hole 71A along the axial center Y direction of the feed shaft 63 is formed in the guide frame 71.

On the other hand, the guide rod 72 coupled to the guide hole 71A to guide the reciprocating member 64 extends from the state coupled to the guide hole 71A to the reciprocating member 64 so as to reciprocate the moving member 64. The connection is fixed.

With the above structure, the drive member 61 is suspended and supported on the axis center X of the connecting pin 68 so as to be able to swing horizontally. Then, when the adjustment operation tool 65 is rotated, the feed shaft 63 rotates around its axis Y to move the reciprocating member 64 along the axis center Y of the feed shaft 63. . The reciprocating member 64 is moved and guided in a state along the axis X by the guide rod 72. Thereby, the drive point 61 can move the support point position which the horizontal rocking | fluctuates. In doing so, the link ratio relating to the flat swing of the drive member 61 is changed, and the drive stroke of the output portion 61B of the drive member 61 is changed.

That is, when the position of the reciprocating member 64 is located at the edge part on the side of the 1st linkage rod 59 in the elongate hole 61a of the drive member 61, it is made from the support point position (axial center X). The link ratio of the link length L2 from the support point position (axial center X) to the linkage position with the second linkage rod 62 to the link length L1 to the linkage position with the first linkage rod 59 is approximately 1. .

From that state, the closer the position of the reciprocating member 64 is to the second linkage rod 62 side, the longer the link length L1 and the shorter link length L2 are, and the link ratio gradually approaches zero. Done.

And when the position of the reciprocating member 64 is located in the edge part by the side of the 2nd linkage rod 62 in the long hole 61a of the drive member 61, the link length L1 is long and a link The link ratio is approximately zero because the length L2 is approximately zero.

Thereby, the drive stroke in the output part 61B of the drive member 61 becomes substantially zero, and fertilizer is not fed out.

Thus, since the structure using the feed shaft 63 is employ | adopted in order to change the support point position of the drive member 61, movement of the support point finer than the pitch part of the screw groove 63A by rotating operation of the feed shaft 63 is carried out. It is possible to enable fine adjustment as compared with sliding the support point position directly to the operating tool, and since the reciprocating member 64 is engaged with the screw groove 63A, self-locking is applied, and a special locking mechanism It is possible to fix in the adjustable position without introducing.

As shown in Fig. 3 and Fig. 5, the adjustment operation tool 65 is detachably attached to the narrow diameter portion 63B of the feed shaft 63 by a butterfly nut 63a, and during normal planting work. By removing it, it can be made not to interfere.

Although not shown, for example, the adjustment operation tool 65 itself may be folded at the position of the arm part which connected the narrow diameter part 63B, for example, the adjustment operation tool 65 may be folded so that the narrow operation part 63B may be folded. May be configured to be close to the fertilizer 2 so as to be folded.

Since the adjustment operation tool 65 is provided in the narrow diameter part 63B extended to the opposite side with the said 1st linking rod 59 in the feed shaft 63, and the feeding part 21 therebetween, Since concentration can be avoided and the adjustment operation tool 65 can be provided in the vicinity of the driver's seat 16, adjustment operation of the adjustment operation tool 65 is possible without getting off from the driver's seat 16. As shown in FIG.

[2nd Embodiment]

A structure different from the first embodiment of the power transmission structure to the fertilizer dispensing unit 21 will be described. As shown in Figs. 12 and 14, the rotational movement of the rotary arm 58, which extracts power from the PTO shaft 57, which extends rearward to transmit power from the mission case 14 to the planting device 4, In order to receive up and down, the 1st linkage rod 59 connected with the eccentric position of the rotating arm 58 is provided.

As shown in FIG. 13, in the vicinity of the upper end of the first linkage rod 59, a linkage shaft 85 in the left and right transverse directions is hypothesized, and the support arms 85A and the first arm provided on the linkage shaft 85 are provided. The upper end of the linkage rod 59 is linked. The linking shaft 85 extends to the vicinity of the right end of the fertilizing apparatus 2, and the driving arm 85B is provided at the right end position of the linking shaft 85 itself. An interlocking arm 86 in an up-and-down posture is connected to the distal end of the driving arm 85B, and the channel-shaped driving member 61 smoothly swings an upper end portion of the interlocking arm 86 around the transverse support point X. Is connected to the input unit 61A.

The front end of the positioning arm 88 extending from the fixed side is connected to the input portion 61A of the driving member 61, and the driving arm is independent of the movement of the reciprocating member 64 by the positioning arm 88. Companion movement of 61 is regulated so that the reference state of rocking support point adjustment of the drive member 61 may not be changed.

The input arm 60A of the one-way clutch 60 is extended by extending the second linkage rod 62 downward from the output portion 61B at the opposite end with the transverse support point X in the drive member 61 interposed therebetween. ). The power converted into the rotary motion by the one-way clutch 60 is transmitted from the drive shaft 55 to the feeding shaft 26 via the gear mechanism.

Next, the rocking support point position changing means A will be described with a structure different from that of the first embodiment.

As shown in FIG. 13 and FIG. 14, the swing support point position changing means A holds a screw shaft 80 having a male screw portion 80A and a nut member screwed to the male screw portion 80A. Reciprocating member 64 reciprocating along the axial direction of the screw shaft 80, and an adjustment operation mechanism 65 detachably mounted to the narrow diameter portion 80B of the screw shaft 80. have.

The mounting structure of the screw shaft 80 is demonstrated. A plate-shaped support frame 82 is provided inside the installation box 84 that is installed in parallel with the axis of the screw shaft 80, and the flange portion is raised in the transverse direction at the front and rear ends of the support frame 82. The screw shaft 80 is provided via the bearing 83 over the boss portions 82a and 82b attached to the front and rear support brackets 82A and 82B, and used as the front and rear support brackets 82A and 82B. It is rotatably supported around one's axis Y.

The reciprocating member 64 is composed of a cylindrical holder portion 64A fitted to the screw shaft 80 so as to be movable outside and a channel-shaped suspension member 64B extending downward from the holder portion 64A. . The hanging member 64B is externally fitted so as to form a pair of lower end plate portions 64a at regular intervals left and right and to insert the drive member 61 into the lower end plate portions 64a.

As shown in FIG. 13 and FIG. 14, long holes 61a along the longitudinal direction are formed in the side plate portion of the drive member 61, and both lower end portions of the hanging member 64B are penetrated through the long holes 61a. The connecting pin 68 is inserted through the plate portion 64a. This connecting pin 68 constitutes a swing support point of the drive member 61.

The display board 87 is provided in the horizontal side of the holder part 64A, and the upper end part of this display board 87 protrudes upwards from the upper surface of the installation box 84. An index indicating an amount of feeding of fertilizer or the like is provided on the upper surface of the installation box 84 and is configured to direct the index to the guide plate 87 moving by adjusting the position of the support point of the driving member 61.

As shown in Figs. 1 and 13, the adjusting operation tool 65 is screwed and fixed to the shaft end of the screw shaft 80, but is provided at the height position of the backrest of the driver's seat 16, It is installed at an easy height.

In this case, although not shown in the drawing, the adjustment operation tool 65 may be configured to be removable by the screw shaft 80 by hand, and the adjustment operation tool 65 may be fertilized by allowing the screw shaft 80 to be folded. You may comprise so that folding storage is possible near to 2).

When the adjustment operation tool 65 is rotated by the above structures, the screw shaft 80 rotates around its own shaft center, and the reciprocating member 64 is driven to move along the screw shaft 80. Thereby, the position of the support point of the drive member 61 is changed as mentioned above, the link ratio of the drive member 61 is changed, and feeding amount adjustment can be performed.

 [Other Embodiments]

(1) Although the feed amount adjustment of the fertilizer is performed by rotating the feed shaft 63 and the screw shaft 80 in order to change the stroke of the output portion 61B of the drive member 61, the feed shaft 63 is rotated. Instead of using it, a form in which the reciprocating member 64 is slid directly may be adopted.

(2) Although the feeding amount adjustment of the fertilizer is performed by artificially rotating the feed shaft 63 and the screw shaft 80 to change the stroke of the output portion 61B of the drive member 61, the feed shaft 63 May be rotated by a drive motor to slide the reciprocating member 64. No artificial adjustment controls are required.

(3) Although the feeding amount adjustment of the fertilizer is performed by artificially rotating the feed shaft 63 and the screw shaft 80 to change the stroke of the output portion 61B of the drive member 61, the feed shaft 63 ) May be positioned below the boarding step of the control unit 15 so that only the second linkage rod 62 may rise above the step.

(4) As the adjustment operation tool 65, not only a handle type but also a foot pedal system may be used.

As an agricultural material supply apparatus which concerns on this invention, it is applicable to the following apparatuses as well as the fertilizing apparatus mounted in the said riding type rice transplanter.

(A) A direct wave device may be used to directly carry out rice seed on the tilled ground.

(B) It may be a liquid supply device for applying a liquid fertilizer.

(C) A chemical spray device may be used.

(D) The rice seed feeding device used for the seedling raising device may be used.

[Overall constitution of work machine]

15 and 16 show a passenger-type rice transplanter, which is an example of a work machine to which the granular material supply device 100A of the present invention is applied.

This riding type rice transplanter has an engine 113 and a front side of the body frame 110 of the traveling body 101 provided with a pair of left and right front wheels 111 and a pair of left and right rear wheels 112 which can be steered. The mission case 114 is provided. The rear part in the rear part of the body frame 110 which comprises the steering part 115 equipped with a steering wheel, etc., and the driver's seat 116 in the center part of the traveling body 101, and comprises the traveling body 101. The said powder granules supply apparatus 100A is arrange | positioned above step 118. FIG.

Driving having substantially flat step portions positioned lower than the rear step 118 on both the left and right sides of the engine 113 and between the steering unit 115 and the driver's seat 116 and on the left and right sides of the driver's seat 116. The substep 117 is provided. The spare mother mounting table 126 is arranged at the left and right portions that are further outside of the driving unit step 117 and oppose the placement portion of the engine 113.

On the rear side of the vehicle body frame 110, a pair of left and right support frame plates 110B constituting the vehicle body frame 110 are similarly installed on the main frame 110A constituting the vehicle body frame 110, The riding type rice transplanter is comprised by attaching the planting apparatus 102 which is an example of the working apparatus 100B to the other end side of the link mechanism 119 which pivoted one end side to this support frame board 110B. The link mechanism 119 is provided with the lift cylinder 119a, and connects the planting apparatus 102 so that raising / lowering operation with respect to the traveling body 101 is possible.

As shown in FIG. 16, the planting device 102 is composed of eight sets, and the rotation case 121 is rotatably supported on both left and right sides of the four planting transmission case 120 and the planting transmission case 120. And a pair of planting hooks 122, five ground floats 123, a parent mounting table 124, and the like, which are disposed at both ends of the rotary case 121.

 [Configuration of Powder Pellet Device]

Next, the structure of the granular material supply apparatus 100A is demonstrated.

The granular material supply device 100A is a fertilizer device 103 for storing fertilizer as granular material, which is a conveyed object, and feeding and supplying it by a predetermined amount, and air flow conveyance for conveying the granular material to the work device 100 'by the wind. It is comprised by the means 104. These fertilizing apparatus 103 and the airflow conveying means 104 are arrange | positioned left and right in the vicinity of the rear side of the driver's seat 116 in the rear part of the traveling body 101, as shown to FIG. 15 and FIG. It is arrange | positioned and is supported by the support frame 105 provided on the vehicle body frame 110. As shown in FIG.

 [Fertilizer]

The fertilizer 103 is a fertilizer hopper 130 made of a transparent resin for storing fertilizers as shown in FIGS. 17 to 19, and four fertilizer feeding mechanisms 132 disposed under the fertilizer hopper 130. ), A feeding case 131 is provided.

The fertilizer dispensing mechanism 132 is a position lower than the powder discharging opening 131A of the feeding case 131 with the feeding roll 133 formed with a plurality of recesses 133a for the powder dispensing in the outer circumference along the circumferential direction. In addition, it is arrange | positioned rotatably above the funnel part 134 (an example of the start end part of a fertilizer supply path). In addition, the code | symbol 132a in FIG. 19 is a brush which sliding-contacts with the peripheral surface of the feed roll 133, and acts as a surface clipper.

The driving force to the fertilizer dispensing mechanism 132 is transmitted to the feeding shaft 135 through the transmission mechanism including the one-way clutch mechanism and the like not shown in the driving case from the mission case 114. And the feed roll 133 is rotationally driven with the intermittent rotation of this feeding drive shaft 135, and is comprised so that the drive of the fertilizer feeding mechanism 132 may be performed.

As a result, the fertilizer stored in the fertilizer hopper 130 is introduced into the recess 133a of the feeding roll 133, and the fertilizer is funnel portion 134 with the intermittent rotation of the feeding shaft 135. Is contributed to. And the fertilizer fed to the funnel part 134 is supplied by the high pressure wind from the electric blower 140 of the airflow conveying means 104 mentioned later to the funnel part 134 through the conveyance duct 141, By the high pressure wind, it is sent from the cylindrical member 137 of the exit side of the funnel part 134 to the working apparatus 100 'side. That is, the tubular member 137 is connected to a supply hose 139 for supplying fertilizer to the furrow opener 125 of the planting device 102, and the tubular member 137 is connected to the tubular member 137. Corresponds to the connection to the supply hose 139.

The cylindrical member 137 is provided on the other end side of the cylindrical connecting portion 137a to which the supply hose 139 is connected to a spherical shaped receiving portion 134b on the outlet side of the funnel portion 134. A spherical inner connecting portion 137b which is inscribed is provided, and is supported to be relatively movable with respect to the funnel portion 134. That is, the cylindrical member of the supply hose 139 is formed by the spherical inner connecting portion 137b of the cylindrical member 137 and the spherical receiving portion 134b on the funnel portion 134 side. A posture change mechanism 136 is configured to enable a change in the posture while maintaining a connection state with respect to 137.

The spherical accommodating portion 134b of the funnel portion 134 is configured to be divided in the largest diameter portion of the spherical surface as shown in FIG. 19, and the internal connecting portion ( It is comprised so that attachment and detachment of 137b) may be performed.

As shown in FIG. 19 and FIG. 27-29, the said granule discharge port 131A is the upper side of the funnel part 134, and the residual fertilizer in the fertilizer hopper 130 is located above the feed roll 133. It is provided so that the joining flow path 100r for discharging to the discharge duct 142 side mentioned later may be comprised. In addition, the granule discharge port 131A has a state of discharging the fertilizer existing in the fertilizer hopper 130 to the outside without passing through the feeding roll 133, and an opening / closing operation mechanism which can be switched to a state of preventing the discharge thereof. 138, an example of the opening and closing means for merging the conveyed object), the opening and closing operation mechanism 138 is not attached to the granule discharge port 131A itself, but is provided in a part of the airflow conveying means 104 to be described later. It is comprised so that attachment | attachment with respect to the granular material discharge port 131A is possible from the exterior.

In addition, the granular material discharge port 131A constituting the merging flow path 100r for discharging the remaining fertilizer in the fertilizer hopper 130 to the discharge duct 142 side and the merging flow path 100r on the discharge duct 142 side. The granular confluence constituting part 142c constituting the fertilizer hopper is returned to its original fertilizer supply position as shown in FIG. 19, even when the fertilizer hopper 130 is changed in posture to the rear inclined position as shown in FIG. 20. It is formed in the state which has the inclination which the discharge duct 142 side becomes low so that residual fertilizer may flow easily even in a state.

The opening-and-closing operation mechanism 138 comprised as mentioned above is operated in the closed position shown by the solid line | wire of FIG. 19 at the time of a normal planting operation, and the fertilizer from the fertilizer hopper 130 is fed to the funnel part 134. FIG. Then, in the case where the normal planting work is finished, the opening and closing of the planting device 102 (specifically, the drive of the PTO shaft (not shown)) is stopped as shown by the virtual line of FIG. 19. When the operation mechanism 138 is operated in the open position, the fertilizer remaining in the fertilizer hopper 130 is discharged to the outside from the granular material discharge port 131A.

 [Airflow conveying means]

The airflow conveying means 104 for conveying the fertilizer (powder) extracted from the fertilizer dispensing mechanism 132 to the working apparatus 100 'side by wind power is comprised as follows.

As shown in FIGS. 17-19, FIG. 22, and FIG. 23, the airflow conveying means 104 becomes a supply path for conveying the electric blower 140 for airflow, and a granulated material to the working apparatus 100 'side. The conveyance duct 141 and the discharge duct 142 used as the discharge path for carrying out powder granules to the exterior are comprised.

 The electric blower 140 is arrange | positioned in the state which made the rotating shaft center 100y of the wind vane (not shown) driven by the electric motor 140a along an up-down direction, and introduces outside air from the downward inlet port 140b. And an air vent 140c that is opened in the horizontal direction from the horizontal direction so as to blow the conveying wind from the left side one side of the traveling body 101 to the other side.

The branch duct 143 bifurcated with respect to the said air inlet 140c of this electric blower 140, the conveyance duct 141 which comprises a supply path, and the discharge duct 142 which comprises a discharge path. The wave guide tube 104A which consists of this is connected.

As shown in FIG. 16, an intake duct 127 is connected to the intake port 140b so as to have an intake opening in the vicinity of the engine 113 and to suck in the warmed outside air around the engine 113. The intake duct 127 has a tubular portion 127c having a pleat box shape flexibility at an end portion of the side connected with the electric blower 140 to allow a change in posture of the electric blower 140. It is configured so that it can be deformed.

27 and 28, the branch duct 143 is connected to the receiving side connection port 143a fitted with the air supply 140c of the electric blower 140 and the conveying duct 141. As shown in FIG. The supply side connection port 143b and the discharge side connection port 143c which are connected with respect to the discharge duct 142 are formed, respectively. Therefore, it is comprised so that the blowing air from the electric blower 140 may branch supply to each of the said conveyance duct 141 and the discharge duct 142. As shown in FIG.

The supply-side connection port 143b of the supply-side connection port 143b and the discharge-side connection port 143c is connected to the air inlet 140c of the electric blower 140 on the same rotational surface as that of the wind blade of the electric blower 140. It is located in the state almost facing, and is comprised so that a wind may be sent into the conveyance duct 141 in the direction which substantially follows the extension line 100L of the blowing direction from the air blower 140c.

In addition, of the supply-side coupler 143b and the discharge-side coupler 143c formed in the branch duct 143, the discharge-side coupler 143c is the air supply port in plan view as shown in FIGS. 27 and 28. It is located at a part spaced apart in the transverse direction with respect to the extension line 100L in the blowing direction from 140c, and as shown in Figs. 25 and 28, even in the up and down direction, than the rotating surface on which the wind blades of the electric blower 140 rotate. It is provided in the state located in the site | part which separated to the upper side.

In addition, as illustrated in FIG. 28, the air passage path from the accommodation-side connection port 143a connected to the air outlet 140c to the discharge-side connection port 143c is defined by the accommodation-side connection port 143a and the discharge-side connection port 143c. It is formed to connect with a smooth curve. In addition, the flow path cross sectional area in the direction orthogonal to the blowing direction in the branch duct 143 is formed so that the flow path cross sectional area in the branch duct 143 is larger than the flow path cross sectional area in the discharge duct 142. . In the branch duct 143, the flow passage cross-sectional area is formed to be larger in the blowing direction except for the vicinity of the supply-side coupler 143b.

In the branch duct 143, a path switching valve 144 for switching and supplying the wind supplied from the air supply 140c of the electric blower 140 to either the supply path side or the discharge path side. Corresponding to a blowing supply / distribution means for the discharge duct 142] is provided.

The path switching valve 144 has an operation shaft 144a that vertically penetrates the inside of the branch duct 143 as shown in FIGS. 27 and 28, and an axis center 100y2 in the vertical direction of the operation shaft 144a. It is comprised by the plate-shaped valve main body 144b equipped to be rotatable around. The valve body 144b is configured to be capable of switching positions in a range of approximately 90 degrees over the supply path opening attitude shown in FIG. 27A and the discharge path opening attitude shown in FIG. 27B. have. Further, stepped portions 143d and 143d are formed on the inner surface side of the branch duct 143 in contact with the limit positions on both sides of the posture change range of the valve body 144b, and the stepped portions 143d and 143d. The discharge path opening posture and the supply path opening posture of the valve body 144b are stably maintained by the contact of.

 [Conveying duct]

The conveyance duct 141 of the conveyance duct 141 and the discharge duct 142 connected to the branch duct 143 is comprised as shown in FIG. 24 and FIG. 29-33.

That is, the conveyance duct 141 connects several short pipe 141A concentrically through the annular connector 141B, and is formed in the continuous cylinder shape of predetermined length.

Each of the short pipes 141A has small projections 141a for engaging at both ends thereof as shown in FIG. 29, and the wind guide member 145 described later is fitted to the middle portion of the longitudinal direction. A mounting hole 141d for fixing in the closed state is formed.

Then, as shown in Figs. 30 and 32, the annular coupler 141B has a pair of short pipes 141A adjacent to each other, which are formed at an outer circumferential position near the opposing end thereof. Two cam-shaped cutouts 141b and 141b for engaging the small projections 141a and 141a for locking are formed.

Therefore, as shown in FIGS. 32 and 33, of the pair of short pipes 141A and 141A in which the ends are placed in abutted state, first, the small projection 141a for locking the short pipe 141A is first removed. Engages to one cam-shaped cutout 141b of the connector 141B, and then attaches the small projection 141a for locking the other short pipe 141A to the other cam-shaped of the connector 141B. By coupling to the notch 141b, a pair of short pipes 141A and 141A in adjacent positions can be connected to each other.

In the pair of short pipes 141A and 141A which are positioned in the state where the end portions are in contact with each other, the opposite end portions are slightly enlarged in diameter, and a pair of rear atmospheric members are formed on the inner circumferential side of the diameter expansion portion 141e. 141C, 141C) are mounted. The inner diameters of the back side atmospheric members 141C and 141C are formed to have the same dimensions as the inner diameters of the portions excluding the diameter-expanded portions 141e of the short pipes 141A and 141A, and the inner circumferential surface of the conveying duct 141 is It is comprised so that it may become a smooth surface without a useless step part.

32 and 33, reference numeral 141c denotes an anti-slip rib when gripping and rotating the outer periphery of the annular connector 141B.

The guide guide member 145 attached to the installation hole 141d formed in the middle part of the longitudinal direction of the said short pipe 141A is formed in the one-piece whole body which consists of rubber materials. 21 and 31, the cylindrical guide member 145 is fitted to one side of the pedestal portion 145a into the installation hole 141d formed in the short pipe 141A. Concave portions 145c which integrally form portions 145b and 145b and which are fitted from the outside with respect to the conveying air inlet 134a formed in the funnel portion 134 of the fertilizing device 103 on the other side of the pedestal portion 145a. To form.

Therefore, the two cylindrical guide parts 145b and 145b of the rubber guide member 145 are fitted into the mounting holes 141d formed in the middle portion of the short pipe 141A in the longitudinal direction. The guide guide member 145 can be attached to the conveyance duct 141. 19 and 21, the fertilization apparatus 103 is formed by externally inserting the concave portion 145c of the guide member 145 into the conveying air inlet 134a formed in the funnel portion 134. The conveyance duct 141 can also be connected to the funnel part 134 of (). Thus, the rubber guide member 145 connects the conveying duct 141 to the funnel part 134 of the fertilizing apparatus 103 in addition to serving as a conveying wind guide for facilitating introduction of conveying wind, and The role as a sealing member in the site is also fulfilled.

Although the two cylindrical guide parts 145b and 145b are arrange | positioned in the front-back position of the flow direction of conveyance wind, Among them, it is located below the cylindrical guide part 145b located upwards in the flow direction of conveyance wind. The cylindrical guide part 145b which is located is formed so that it may protrude largely from the pedestal part 145a.

And also in the individual cylindrical guide parts 145b and 145b, the cylindrical outer peripheral surface of each cylindrical guide part 145b and 145b so that conveyance wind introduction from the upper side in the flow direction of conveying wind can be performed favorably. It is a shape cut out so that the surface which faces upward may be lower than the surface which faces downward. In addition, the protruding end side of the cylindrical outer peripheral surface of each cylindrical guide part 145b, 145b is formed in the partial conical surface which becomes thinner as the front end side, and changes the direction of the conveying wind flowing in the conveyance duct 141 smoothly. To be easily introduced into the funnel portion 134.

In addition, in the said conveyance duct 141, since the conveyance direction terminal part side needs to be closed, in this embodiment, as shown in FIG. 18 and FIG. 24, the short pipe 141A of the last end side, the edge part of a terminal part side is shown. Although the special shape of which is occluded is used, it is not limited to such a structure, You may make it attach a closure member separately in the terminal side of the short pipe 141A of both end openings.

 [Discharge duct]

The discharge duct 142 of the conveyance duct 141 and the discharge duct 142 connected to the branch duct 143 is comprised as shown in FIG. 17, FIG. 18, FIG. 19, and FIG.

That is, the discharge duct 142 connects the plurality of short pipes 142A and 142B in a concentric state, thereby forming a continuous tubular shape of a predetermined length and connecting the end pipe 142C which is detachable to the terminal part. Consists of.

In the case of the discharge duct 142, the end shapes of the short pipes 142A and 142 'and the end pipe 142C are not connected to each other using an annular connector 141B similar to the conveying duct 141. A continuous tubular discharge duct 142 is constructed.

That is, the discharge duct 142 is a short pipe 142A, 142B, not only using a single type of end shape, but also partially expanded on both ends, as shown in FIGS. 24, 25, and 26. The first short pipe 142A having the stepped end 142a, the second short pipe 142B formed entirely in a straight tube shape, and one end side thereof are inserted into the first short pipe 142A, and the other end side thereof. It is comprised by the combination with the terminal pipe 142C which opens to this exterior.

Therefore, these first short pipes 142A and second short pipes 142B are alternately connected as shown in FIGS. 24 and 25, and the terminal pipes 142C are connected to the final ends. An long discharge duct 142 is constructed.

Among the short pipes 142A and 142B, the first short pipe 142A is connected to the powder discharging opening 131A of the fertilizer hopper 130 at an intermediate portion thereof in the longitudinal direction as shown in FIGS. 19 and 27. The inclined guide portion 142c and the inclined guide portion 142d for guiding the joined granular material toward the lower side in the flow direction of the conveying wind are integrally formed.

Thus, by forming the 1st short pipe 142A, the joining flow path 100r comprised by the said granular material confluence part 142c and the inclined guide part 142d is formed in the cylindrical shape of the discharge duct 142. An almost rectangular outlet opening is formed in the recessed state. As a result, the wind introduced into the discharge duct 142 as shown in FIG. 27B flows along the inclined surface of the inclined guide portion 142d or along the lateral side of the granular confluence portion 142c. Since the residual fertilizer discharged from the joining flow path 100r is conveyed to the terminal end side while suctioning, the residual fertilizer is less likely to return to the feeding case 131 side.

The second short pipe 142B is formed in a straight tube shape as a whole, and is connected in a state in which the second short pipe 142B is inserted into the stepped end 142a formed at the end of the first short pipe 142A opposite to each other. In addition, the sealing member 142b is squeezed between the outer circumferential surface of the end of the second short pipe 142B and the stepped end 142a formed at the end of the first short pipe 142A. .

The inner circumferential surface of the straight main pipe portion of the second short pipe 142B is formed to have the same diameter as the inner circumferential surface of the pipe except for the stepped end 142a and the inclined guide portion 142d of the first short pipe 142A. It is comprised so that the smooth flow path which a continuous inner peripheral surface side may be formed in the discharge duct 142 may be formed.

An opening and closing operation mechanism 138 for opening and closing the granular material discharge port 131A is attached to the granular material confluence portion 142c of the first short pipe 142A. 19, 20, and 24-26, this opening / closing operation mechanism 138 has the plate-shaped valve main body 138a which opposes the outer side of the granular material discharge port 131A, and its plate-shaped valve main body ( It consists of the crankshaft 138b attached to the upper end side of 138a, the operating rod 138c and the pressing spring 138d which rotate-operate the crankshaft 138b.

Therefore, the operation of switching the plate-shaped valve main body 138a to the open position is performed by rotating the operating rod 138c in a closed position shown by a solid line in FIG. 19 to be rotated to an open position shown by an imaginary line. can do. In addition, the operation portion of the crank-shape shaft 138b is coupled to the elongated hole 138e formed in the operation rod 138c, and is provided by the compression spring 138d provided between the operation rod 138c, and the elongated hole 138e. It is comprised so that the closed position and the open position of the plate-shaped valve main body 138b can be stably maintained by pressing to the lower end side of the plate.

As shown in Figs. 19 and 20, the first short pipe 142A integrally includes a mounting plate portion 142e formed of a plate-like protrusion along the longitudinal direction on the outer circumferential side thereof, and the mounting plate portion 142e. The bolt is fixed to the support frame 105 via the through. Thus, by fixing the 1st short pipe 142A to the support frame 105, the 2nd short pipe 142B located in the state sandwiched between the 1st short pipe 142A is also orthogonal to the longitudinal direction and the longitudinal direction. Since the movement regulation of the direction to perform is performed, the whole discharge duct 142 will be position regulated.

As shown in FIGS. 25 and 26, the end pipe 142C has a predetermined distance between the main pipe 142f bent in an L-shape and the opening 142h formed at the bent portion of the main pipe 142f. The cover body 142g which is spaced apart and covers so that the conveyance wind discharged | emitted from the opening opening 142h may be guided downward is comprised. The upper end of the main pipe 142f in the conveying wind flow direction is fitted with respect to the stepped end 142a of the first shortest pipe 142A.

Separation means 146 for separating the conveying wind and the granular material is provided in the terminal pipe 142C by passing only the conveying wind by preventing passage of the granular material carried by the wind in the discharge duct 142. .

The said separating means 146 is comprised by the said opening opening 142h and the network body 146a equipped with the opening opening 142h. That is, the opening 142h is a transverse pipe portion at a portion of the main pipe 142f that faces the transverse pipe portion along the extension direction of the first short pipe 142A or the second short pipe 142B. It cuts off so that the whole flow path inside may be opened. In addition, the reticular body 146a is provided in the entire opening 142h, and blocks a plurality of vent holes of a size suitable for passing only the conveying wind by preventing passage of the granular material flowing in the discharge duct 142. Have

Since it is comprised in this way, the granular material which flows in the discharge duct 142 is conveyed in the extending direction of the said 1st short pipe 142A or the 2nd short pipe 142B, and the network 146a as the said separating means 146 is carried out. ), It stops the movement in the extension direction and falls downward, and only the conveying wind passes through the network 146a and is blown out in the extension direction.

In addition, although not shown, the cover body 142g which covers the said conveyance wind so that it guides downward may be mounted so that the cover body 142g may rock upwards with respect to the main axis | shaft 142f in the horizontal direction from the state shown in FIG. You may comprise a posture changeable in the posture opened large to the side. Thus, when the cover body 142g is comprised so that attitude change is possible, it is easy to carry out the maintenance of the said separation means 146 by making the cover body 142g into an open position.

In the main pipe 142f portion of the terminal pipe 142C, as shown in FIGS. 24 to 27, the conveying air flowing in the discharge duct 142 is discharged from the terminal of the discharge duct 142 to the outside. The on-off valve 147 as a flow opening / closing means which is switchable in the state which makes it possible to switch, and the state which prevents discharge to the outside is provided.

This on-off valve 147 is comprised by the horizontal operation shaft 147a and the disk-shaped valve main body 147b which rotates around the operation shaft 147a, and rotates the said operation shaft 147a from the outside. By operating, it is comprised so that opening and closing operation of a flow path in the terminal part in the discharge duct 142 is possible.

The opening / closing operation of the opening / closing valve 147 is provided with a linkage mechanism 148 so as to be performed by the rotation operation of the operating rod 138c of the opening / closing operation mechanism 138.

That is, as shown in FIG. 26, the interlocking rod 148b and the opening / closing valve which integrally fixed the operation piece 148a to a part of the operation rod 138c, were connected to a part of the operation piece 148a. The operation arm 148c integrally connected to the operation shaft 147a of 147 is connected. Thereby, when the said operating rod 138c is rotated and the said switching valve 147 is switched to a flow path blocking position, the said opening / closing operation mechanism 138 will operate the plate-shaped valve main body 138a to the open side, and a cylindrical member (137) is switched to the open state.

Therefore, since the conveyance wind supplied into the discharge duct 142 is closed by the said opening-closing valve 147, it is a state which flows back to the fertilizer hopper 130 side through the cylindrical member 137. FIG.

The linkage mechanism 148 not only links the opening / closing valve 147 that is the flow opening / closing means and the opening / closing operation mechanism 138 of the plate-shaped valve body 138a that is the opening / closing means for merging the conveyed object, but also a path as a blowing supply / distribution means. It is also associated with a switching valve 144.

That is, as shown in FIG. 24, FIG. 25, and FIG. 27, the path switching of the operation arm 144c and the operation rod 138c which were provided in the one end side of the operation shaft 144a of the path switching valve 144 is carried out. The route switching operation piece 148d provided in the vicinity of the valve 144 is linked with the linkage rod 148e.

Thereby, by the rotation operation of the said operating rod 138c, the said opening-closing valve 147 is switched to a flow path blocking position, and the said path switching valve 144 is switched with the cylindrical member 137 being switched to the open state. ) Is configured to switch in a state of sending the wind of the electric blower 140 toward the discharge duct 142 side. Therefore, the operating rod 138c is provided with the function as the operation portion of the path switching valve 144.

Although not shown in the drawing, the fertilizer discharge hose made of a soft hose or the like may be provided at a portion of the terminal pipe 142C which is opened downward of the main pipe 142f. In addition, you may provide the bracket for fixing the collection bag which receives the fertilizer discharged | emitted from the said fertilizer discharge hose in a part of said support frame 105, or in a part of rear part step 118. At this time, it is preferable that the bracket is provided so as not to protrude outward from the side of the body than the rear step 118 in a plan view, and positioned at the rear side of the rear step 118.

(Support frame)

The support frame 105 which supports the said fertilizing apparatus 103 and the airflow conveying means 104 is comprised as follows.

That is, as shown in FIGS. 17 to 20, the support frame 105 has a fixed frame portion 105A provided on the traveling body 101 and a horizontal axis along the horizontal direction of the body with respect to the fixed frame portion 105A. It is comprised by the combination of the movable frame part 105B which can change a posture around the shim 100x.

The fixed frame portion 105A includes a front side support 151 supporting the front side of the movable frame portion 105B, and a rear side support 152 supporting the rear side, and the movable frame portion 105B is an upper rectangular frame 150B formed in a horizontally long lattice shape so as to support the fertilizer hopper 130 which is arranged side by side on the traveling body 101, and downward from the rear side of the upper rectangular frame 150B. It is integrally provided continuously, and is comprised by the support leg part 150A connected to the upper end side of the said back side support | pillar 152. As shown in FIG.

The front posts 151 and the rear posts 152 are fixed at the lower end side to the vehicle body frame 110 side. Among the front posts 151 and the rear posts 152, the rear posts 152 are formed shorter than the front posts 151, and the movable frame is formed on the upper end side of the rear posts 152. 150 A of support leg parts of the part 105B are rockably supported around the horizontal axis 100x.

Accordingly, the movable frame portion 105B has a normal working posture in which the front end side is supported by the front side post 151 as shown in FIG. 22, and rearwards around the horizontal axis 100x as shown in FIG. It is comprised so that posture change is possible with the maintenance posture tilted to the side.

Switching of the movable frame portion 105B to the maintenance posture needs to release the support of the grid-shaped frame 150B by the front post 151, but this release is performed as follows.

The front post 151 is a hook provided on the front post 151 side such that the hook member 153a mounted on the movable frame portion 105 'side to be able to swing and the hook member 153a are engaged. The coupling separating mechanism 153 made of the pin 153b is configured to be switchable in a state of being coupled to each other and in a state in which the coupling is released.

Therefore, the hook operation rod 153c shown by the solid line in FIG. 22 is pushed down as shown in FIG. 23, and the engagement with the latch pin 153b is released, and the state is maintained and the state of the fertilizer 103 When the whole is rotated around the horizontal axis 100x, as shown in Figs. 20 and 23, the entire fertilizing device 103 can be switched to the maintenance posture with the rear inclined posture.

At this time, since the position of the center of gravity 100G of the entire fertilizing device 103 is located on the rear side beyond the vertical line 100y1 on the horizontal axis 100 'as shown in FIG. Easy to maintain posture In addition, in the state where it is located in a normal working posture as shown in FIG. 22, although the center of gravity 100G is located on the front side than the vertical line 100y1, the lower position of the upper end of the lower rear side post 152 is Since it rotates around the horizontal axis 100x, for example, it is moved to the rear side while moving the center of gravity 100G in the upward direction as compared with the case where the rotational operation is performed around the axis of the high position as the upper end of the front post 151, for example. It does not require large operation force to move. Moreover, since the said horizontal axis center 100x is arrange | positioned in the state which the front-back direction position pulls in below the fertilizer hopper 130, there is little distance from the said center of gravity 100G also in the front-back direction. Moreover, although the center of gravity 100G tends to exist in a relatively low position like the code | symbol 100G1 shown in FIG. 22 in the state in which the fertilizer is not filled inside, even in this case, the position of low horizontal axis 100x is low. Since it is located near the front side, the degree of operation which raises the center of gravity 100G to the upper side and operates it is minimum.

As shown in FIGS. 17-20, 22, and 23, the fertilizing apparatus 103 and the airflow conveying means 104 are connected and supported by the movable frame part 105B, and the said of the movable frame part 105B is supported. With the rotation around the horizontal axis 100x, the fertilizer 103 and the airflow conveying means 104 are also rotated.

That is, the front side and the rear side of the upper rectangular frame 150B of the movable frame part 105B are bolted to the mounting brackets 130a and 130a which are formed before and after the fertilizer hopper 130 as shown in FIG. It is.

And the conveying duct 141 which comprises the airflow conveying means 104 is connected to the funnel part 134 of the fertilizing apparatus 103, and the discharge duct 142 is 150 A of support legs of the movable frame part 105B. The installation plate part 142e of each 1st short pipe 142A is connected through the installation stay 150a installed in the above, and the electric blower 140 is a branch to which the conveying duct 141 and the discharge duct 142 are connected. It is connected to and fixed to the duct 143.

19 and 20, a support bracket 150b is also added to the front side of the upper rectangular frame 150B for rotatably supporting the operation rod 138c of the opening / closing operation mechanism 138. It is installed.

[Storage part of powder]

The fertilizer hopper 130 which stores the granular material is specifically comprised as shown in FIGS. 34-37.

In this structure, the fertilizer hopper 130 for an 8 tank type | mold is comprised by connecting 130 A of several intermediate container units and 130B of end container units through the connection mechanism 106. As shown in FIG.

The intermediate container unit 130A is provided with the communication part 130C in both side wall parts of the left-right direction, and is formed so that the internal fertilizer may communicate in left and right communication at the upper half side of the space in a container, and an internal fertilizer is a container. In the upper half of the inner space, the left and right sides are configured to be movable.

And the end container unit 130B located in the outer side of 130 A of intermediate container unit bodies is formed only in the side in which the said communication part 130C is connected inside, ie, 130 A of intermediate container unit bodies.

Each of these intermediate container units 130A and end container units 130B has a pair of left and right mounting brackets 130a and 130a for connection to the support frame 105 at both front and rear sides thereof, as shown in FIG. Each of these mounting brackets 130a and 130a is formed so as not to be pushed outward from the upper edge side end edges before and after the intermediate container unit body 130A and the end container unit body 130B.

The coupling mechanism 106 for connecting the intermediate container unit 130A and the intermediate container unit 130A and the end container unit 130B has a peripheral edge of the communication portion 130C as shown in FIGS. 35 to 37. The connecting member 160 of the shape, the sealing member 161 of substantially the same shape as the connection member 160, and the connecting bolt 162 are comprised.

The coupling mechanism 106 sandwiches the seal member 161 between the intermediate container units 130A, or between the intermediate container units 130A and the end container unit 130B, and further includes the intermediate container units 130A. The connecting member 160 is attached to the outer side of the joint site and the outer container unit 130A and the end container unit 130B of the joint site, and the container unit 130A and 130B and the seal member ( The entirety of the 161 and the connection member 160 are connected to each other by the connection bolt 162 in a fastened state to form a horizontally fertilizer hopper 130.

 〔Etc〕

On the side of the planting apparatus 102 which receives fertilizer through the supply hose 139 of the fertilizing apparatus 103, as shown in FIG. 38 and FIG. 39, the connection site | part of the supply hose 139 and the breaker 125 is impacted. The sensor 107 is provided. The impact sensor 107 detects whether or not the fertilizer particles are being discharged from the supply hose 139 by detecting an impact caused by the collision of the fertilizer particles, which helps in detecting fertilizer clogging.

The impact sensor 107 is supported by a corrugated box-shaped cover body 170 provided at the connection portion between the supply hose 139 and the crumple 125, and vibration of the gas is caused by the impact sensor 107. It is configured to be difficult to deliver.

As for the drive of the fertilizer feeding mechanism 132 of the said fertilizer 103, what is necessary is just to transmit the driving force from the mission case 114 using a suitable transmission mechanism, and it is the above-mentioned structure, transmission path, etc. of the transmission mechanism. Since the description is not related to the gist of the present invention, the description thereof will be omitted. However, the fertilizer dispensing mechanism 131 is usually provided with an intermittent rotation mechanism interposed in the middle by appropriately extending an electric shaft (not shown) from the mission case 114. The structure which carries out shaft transmission to the drive shaft 35 of the is common.

FIG. 40 shows another structure of the transmission mechanism, which is configured as follows. The transmission shaft 180 taken out as the drive transmission shaft from the mission case 114 to the planting device 102, and the other transmission shaft 181 taken out as the drive transmission shaft from the mission case 114 to the rear wheel 112 are replaced. It is configured to transmit through one relay case 108.

Then, in the relay case 108, the transmission shaft 182 to the fertilizer device 103 at an intermediate position between the transmission shaft 180 to the seedling device 102 and the transmission shaft 181 to the rear wheel 112. ), And a switching clutch 183, in which the transmission shaft 182 can be selectively selected with respect to the respective transmission shafts 180 and 181, is provided.

 [1 of another embodiment]

Fig. 41 shows a fertilizer hopper 130 used in a six-row type rice transplanter.

In this structure, as the intermediate container unit body 130A, one having a volume having the same capacity as that of the left and right end container unit body 130B, but composed of an elongated container is employed. This is a structure for responding to a structure in which the riding type rice transplanter becomes 6 tank type, and the wheel base becomes short and there is no space in the space between the driver's seat 116 and the fertilizer hopper 130, FIG. 41 (b). ), The intermediate container unit 130A corresponding to the rear side of the driver's seat 116 is configured to have a concave shape. In addition, the structure of the left and right end container unit 130B, the connection structure of the intermediate container unit 130A, and the left and right end container unit 130B, etc. are the same as the fertilizer hopper for 8 tanks mentioned above.

 [2 of another embodiment]

In the above-mentioned embodiment, although the thing comprised by the network body 146a was illustrated as the separating means 146, it is not limited to this, For example, it consists of a punching metal, or makes a cyclone structure, isolate | separates a granulated material and conveyance wind, Alternatively, the blowing distance in the ventilation duct 142 may be lengthened or changed in direction to dissipate the energy released by the electric blower 140 so that most of the granules fall in the middle.

 [3 of another embodiment]

In addition, when the structure which has vent holes, such as the network 146a, is used as the separation means 146, it is not limited to the structure which traps all the granules by the network 146a, but the granule which has a particle size more than a predetermined size The sieves may be captured and separated, and the fine particles having a fine particle diameter may be discharged along with the conveying wind in another path.

 [4 of another embodiment]

In the above embodiment, the air supplied from the air inlet 140 of the electric blower 140 is switched to one of the supply path side and the discharge path side as a blowing supply / distribution means for the discharge duct 142. Although the thing of the structure which arrange | positioned the path switching valve 144 in the branch duct 143 was shown, it is not limited to this, For example, the electric blower 140 is attached to each of the conveyance duct 141 side, and the discharge duct 142, respectively. It may be provided, and supply and discharge may be performed by the separate operation of the electric blower 140 with respect to each of the ducts 141 and 142.

 [5 of other embodiment]

In the said embodiment, operation of the opening / closing valve 147 which is a flow path opening / closing means, and the path switching valve 144 as a ventilation supply / distribution means is carried out of the opening / closing operation mechanism 138 of the plate-shaped valve main body 138a which is an opening / closing means for merging conveyed objects. Although the thing of the structure connected through the linkage mechanism 148 by operation was illustrated, as the linkage mechanism 148, the illustrated operation pieces 148a and 148d, the linkage rods 48b and 148e, or the operation arm 148c are illustrated. It does not limit, You may employ | adopt various things, such as a connection wire and an electrical connection means.

Moreover, you may comprise so that all may be operated independently by a separate operation, or only a part may be connected without taking such a linkage structure.

 [6 of other embodiment]

The opening / closing valve 147 provided in the discharge duct 142 is not limited to the terminal pipe 142C as shown in the above-described embodiment, and the terminal pipe 142C as shown in FIG. 42. It may be provided in the last short 1st pipe 142A (or 2nd short pipe 142B) to which the main pipe 142f part of this is connected.

In this case, the downward pipe portion of the main pipe 142f portion of the terminal pipe 142C is rotated around the pipe axis of the first short pipe 142A (or the second short pipe 142B) on the upper side. There is an advantage that can adjust the falling position of the powder discharged from the end pipe (142C). Also in this structure, the cover member 142g may be configured to be able to swing up and down around the horizontal axis. Moreover, you may comprise so that the whole of this terminal pipe 142C may be detachable with respect to the upper end 1st short pipe 142A (or 2nd short pipe 142B).

And the last short 1st short pipe 142A (or 2nd short pipe 142B) in which the said opening-closing valve 147 is provided is another 1st short pipe 142A (or 2nd short) other than the upper side. Another kind of shorter structure than the pipe 142B] may be used.

The granular material supply apparatus of this invention can be mounted as a fertilizer supply apparatus in a traveling vehicle body, and can be used as a riding type rice transplanter as described in embodiment. Moreover, it can also be comprised as an apparatus which supplies a chemical | medical agent instead of a fertilizer, and it can also be mounted in a traveling vehicle body, and can be used as a chemical | medical agent spreading apparatus. Alternatively, the granule feeder of the present invention can be used as a straightener as a means for supplying rice seed.

In addition, you may use the granular material supply apparatus of this invention as a means for spraying granular materials, such as a fertilizer, a chemical | medical agent, or rice seed, in not only for a faucet operation but a whole body.

1 is an overall side view of a passenger rice transplanter having a fertilizer;

2 is an overall plan view of a passenger rice transplanter having a fertilizing device.

3 is a rear view showing a fertilizing device.

Fig. 4 is a side view showing the power supply structure to the fertilizer dispensing unit and the swing support point position changing means of the drive member.

Fig. 5 is a side view showing the swing support point position changing means of the drive member.

6 is a front view showing a linkage structure of the drive member and the first linkage rod;

7 is a partially cutaway front view illustrating a linkage structure of the drive member and the first linkage rod;

8 is a longitudinal side view illustrating a feeding shaft, a feeding roll, an intermediate boss portion, a key member, and the like, which are provided at upper and lower feeding cases and their flange joint portions;

9 is a vertical front view showing a feeding shaft, a feeding roll, an intermediate boss portion, a key member, and the like, which are provided at upper and lower feeding cases and their flange joint portions;

10 is a side view showing a state in which (a) the upper and lower side feeding cases are combined; and (b) a side view showing a state in which the lower side feeding cases are separated.

11 is a plan view showing a longitudinal side view and a lower feeding case of the upper feeding case;

Fig. 12 is a rear view showing the power supply structure to the fertilizer dispensing unit and the swing support point position changing means of the drive member according to another embodiment.

13 is a side view of FIG. 12.

14 is an enlarged vertical rear view of the swing support point position changing means in FIG. 13;

Fig. 15 is an overall side view showing a riding type rice transplanter to which the granular material feeding device of the present invention is applied.

Fig. 16 is an overall plan view showing a riding type rice transplanter to which the granular material feeding device of the present invention is applied.

17 is a front view illustrating the powder supply device.

18 is a plan view showing a powder-distribution device.

Fig. 19 is a sectional view in the vertical direction along the gas front-rear direction, showing a powder supply device.

20 is a cross-sectional view in the vertical direction along a gas front-rear direction, showing a powder supply device.

Fig. 21 is a sectional view in a horizontal direction showing a posture change mechanism portion in the granular material supply device.

Fig. 22 is a left side view of the granular material supply device.

Fig. 23 is a left side view of the granular material supplying device.

24 is a plan view of the wind conveyance means.

The front view which shows the discharge duct side of an airflow conveying means.

Fig. 26 is a sectional view in the vertical direction showing the discharge duct.

Fig. 27 is a sectional view in a horizontal direction showing the vicinity of a branch duct of the air flow conveying means.

Figure 28 shows a branch duct, (a) is a plan view, (b) is a front view, (c) is a side view.

Fig. 29 shows a short pipe of the conveying duct, (a) is a rear view, (b) is a plan view, and (c) is a cross-sectional view taken along line c-c in (a).

30 shows the connector of the conveying duct, (a) is a side view, and (b) is a front view.

Fig. 31 shows a guiding guide member, (a) is a sectional view, (b) is a rear view, and (c) is a side view.

Fig. 32 shows a connector of the conveying duct, (a) is a partially cutaway sectional view, and (b) is a partially cutaway sectional view showing a set state.

FIG. 33 is a cross-sectional view taken along a line XIX-XIX in FIG. 32 (b) showing a set state of a connector of a conveyance duct; FIG.

Fig. 34 shows a fertilizer hopper, (a) is a sectional view in the vertical direction along the gas left and right directions, and (b) is a plan view.

35 is a sectional view of the fertilizer hopper in the vertical direction along the gas horizontal direction;

36 is a side view illustrating a coupling mechanism of the fertilizer hopper.

37 is an exploded perspective view illustrating the coupling mechanism;

38 is a cross-sectional view in the vertical direction, showing a fertilization site of the planting device.

FIG. 39 is a sectional view taken along the line XXV-XXV in FIG. 38; FIG.

40 is a diagram illustrating an electric system.

Figure 41 shows another embodiment of the fertilizer hopper, (a) is a cross-sectional view in the vertical direction along the gas horizontal direction, (b) is a plan view.

The sectional drawing of the up-down direction which shows another embodiment of a discharge duct.

<Code description>

20: feeding case (storage part)

21: fertilizer extracting unit (supply mechanism)

61: drive member

61A: input unit

61B: output section

64: reciprocating member (moving member)

65: control operation

68: connecting pin (swing support point)

A: means for changing the swing support point

103: fertilizer

104: air conveyance means

105: support frame

130: Fertilizer Hopper

132: feeding mechanism

134: funnel

138: opening and closing means for joining the transported object

140: electric blower

141: return duct

142: discharge duct

144 blowing means

146: separation means

147: flow path opening and closing means

100 r: Joining flow path

Claims (7)

An agricultural material supply device having a supply mechanism for supplying the stored agricultural material to a predetermined position from the storage portion, In order to adjust the agricultural material supply amount of the said supply mechanism by installing the drive member which drives the said supply mechanism, and adjusting the drive stroke of the output part of the said drive member, the output part of the said drive member is linked with the said supply mechanism, A rocking support point is provided between the input portion and the output portion of the drive member, A moving member for changing the position of the rocking support point by changing the position of the rocking support point to change the position of the rocking support point by changing the position of the rocking support point along the longitudinal direction of the drive member; It is equipped with an operation tool, The suspending member is formed of a holder portion which is moved and operated by the adjusting operation tool, and a suspending member extending downward from the holder portion, and in a long hole formed along the longitudinal direction of the driving member. The connecting pin is installed at the lower end of the lower part and penetrates through the connecting pin constituting the swing support point, and moves the holder part by the adjustment operation tool so that the connecting pin moves along the long hole, so that the position of the swing support point is driven. An agricultural material supply apparatus, configured to be changed along a longitudinal direction of the member. The agricultural material supply apparatus according to claim 1, wherein the long hole is formed in the drive member so that the position of the connecting pin can move to a position proximate to the output portion. The agricultural material supply apparatus of Claim 1 or 2 provided with the positioning rod or the positioning arm which regulates the movement of the input part of the said drive member in the moving direction of the said moving member. The method according to claim 1, wherein the suspension member is formed in a downwardly open channel shape, the suspension member is externally inserted to insert the driving member into a pair of lower end plate portions of the suspension member, and the side plate portion of the driving member is The agricultural material supply apparatus which forms a long hole and penetrates the said connection pin provided over the pair of lower end plate parts of the said suspension member in the said long hole. The front and rear support brackets are extended in the transverse direction from the front and rear ends of the supporting frame provided inside the installation box that protects the drive member and the swing support point position change means, thereby forming the swing support point position change means. The agricultural material supply apparatus which supports a screw shaft rotatably over the front-back boss | portion part provided in the said front-back support bracket, and pinches the said holder part externally so that a movement to the said screw shaft is possible. The agricultural material according to claim 5, wherein the adjustment operation tool is attached to an extended end of the screw shaft extending forward from the support bracket on the front side, and the adjustment operation tool is installed at the height position of the backrest of the driving seat. Feeding device. The agricultural material supply apparatus according to claim 5 or 6, wherein a display panel is provided on the horizontal side of the holder, and the indicator is directed to the display panel that is moved by adjusting the support point position of the drive member.

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