JP4677741B2 - Seedling transplanter - Google Patents

Description

  The present invention relates to a seedling transplanting machine that includes a seedling planting device, a seedling mounting table, and the like and transplants seedlings into a paddy field.

  The seedling transplanter is equipped with a multi-row seedling planting device, a seedling mounting stand, etc. on a machine capable of running on paddy fields, and, as shown in Patent Document 1, a fertilizer is provided for each row. Can supply fertilizers and drugs. The fertilizer applicator includes an adjustable feeding portion, and can apply fertilizer on the field by setting a discharge amount per mileage.

However, since the fertilizer dispenses medicinal fertilizer continuously along the planting strip, it could not be applied at a predetermined interval corresponding to the planted seedling. In order to solve this problem, it is necessary to control the discharge so as to be interlocked with the seedling planting device, and the problem of the complicated configuration cannot be avoided.
JP 2004-105014 A

  The problem to be solved is a seedling transplanter capable of applying fertilizer at a predetermined interval by discharging powdery medicinal fertilizer in conjunction with the planting operation of the seedling planting device with a simple configuration and high accuracy. Is to provide.

The invention according to claim 1
A machine that can run on the field, a seedling planting device that is attached to the rear part and operates to plant seedlings, and the seedling mats are arranged horizontally and vertically to supply seedlings sequentially from the seedling mats to the seedling planting device. In a seedling transplanting machine comprising a seedling mounting table that feeds to the seedling, and a seedling feeding transmission unit that drives the seedling mounting table in the horizontal and vertical directions in conjunction with the planting operation of the seedling planting device,
The seedling planting part 4 is mounted on the rear side of the machine body through the lifting link device 3 so as to be movable up and down, and the body part of the fertilizer is provided on the rear upper side of the machine body,
The seedling planting unit is provided with a seedling mounting stand and a seedling planting device, and has a center float and a side float at the lower part thereof,
The fertilizer application system includes a powder tank for storing powder, a feed unit for controlling the feed amount, a transfer pipe for guiding the powder, and an intermittent supply mechanism for controlling the opening and closing of the transfer pipe. As well as receiving power from the seedling feed transmission unit, this intermittent supply mechanism is driven to open and close,
The intermittent supply mechanism is provided with an open / close lever for opening and closing the supply path, and this open / close lever is disposed in the operating range corresponding to the seedling feed cam attached to the feed shaft of the seedling feed transmission section. The seedling feeding cam is used as an open / close control cam, and can be used in conjunction with the seedling planting device.
Lead the fertilizer to the fertilizer guide attached to the left and right sides of the float with the above transfer pipe,
Thus, the seedling feeding cam rotates corresponding to the rotation of the seedling planting device so that one seedling is planted for one rotation, and acts on an opening / closing lever corresponding to the seedling planting device. Is characterized in that the vertical feed belt of the seedling stage is fed and driven from a support shaft to which a vertical feed lever that swings by its action is attached via a one-way clutch shaft .

According to a second aspect of the present invention, in the configuration of the first aspect, a blower breather port is formed that branches and opens upward near the upstream side of the intermittent supply mechanism.

The invention according to claim 3 is the configuration according to claim 2, wherein the seedling planting device and the seedling mounting stand are configured in parallel on the left and right for each planting line for a plurality of parallel planting operations. Correspondingly, a plurality of transfer pipes are juxtaposed in the left and right, each intermittent supply mechanism is divided into two groups on the left and right, and an opening / closing lever for opening and closing the intermittent supply mechanism is arranged for each of these groups. Corresponding seedling feed cams are arranged at least at a distance of the feed width in the lateral direction of the seedling mount, and the shutters of the respective strips are driven in conjunction with the respective support shafts of the two groups to which the opening / closing levers are respectively attached. And
While providing a mesh material at the upper end of the blower breather port, a lid that can be closed by its own weight is provided to be openable and closable,
Two seedling feed cams are provided to drive the vertical belt at the left and right lateral feed end positions of the seedling platform,
Further, the intermittent supply mechanism is characterized in that it is in a closed position when the seedling planting device is stopped in a predetermined state by a fixed position stop clutch .

The seedling transplanter of the present invention has the following effects.
In the seedling transplanting machine according to the first aspect of the present invention, the powder is controlled to be fed from the powder tank by the feeding unit, and then sent from the discharge port to the field according to the opening / closing operation of the intermittent supply mechanism provided in the transfer pipe. Is done. At this time, since the seedling feeding transmission part is operated in conjunction with the seedling planting operation of the seedling planting device, the intermittent feeding mechanism receives a power from the seedling feeding transmission part to the simple feeding mechanism. According to the configuration, an opening / closing operation in accordance with the seedling planting operation can be performed at a highly accurate timing. Therefore, powdery medicinal fertilizer can be concentrated and supplied efficiently at a predetermined position determined in relation to the planted seedling. Moreover, when it applies to sowing, it can respond to the point sowing of a predetermined interval.
In addition, the open / close control cam of the seedling feeding transmission portion acts on the open / close lever, and the intermittent supply mechanism opens and closes in conjunction with the planting operation of the seedling planting device. In this case, since the opening / closing control cam operates in conjunction with the planting operation of the seedling planting device, it can be easily configured in common with the seedling feeding cam for the vertical feeding operation of the seedling mounting table. .

The invention according to claim 2 has an effect that, in addition to the effect of claim 1, when the intermittent supply mechanism is clogged, the upstream flow can be secured .

The invention according to 請 Motomeko 3 has the following effects in addition to the effect of claim 2.
In the case of a multi-row planting configuration, the intermittent supply mechanisms arranged in parallel in the horizontal direction are divided into two groups on the left and right, and each intermittent supply mechanism is driven to open and close by an open / close lever arranged at a predetermined distance. Therefore, the open / close control cam acting on the open / close lever can open and close the intermittent supply mechanism in a shared configuration with the seedling feed cam for the vertical feed drive of the seedling stage, and the open / close transmission system of the intermittent supply mechanism is The opening / closing operation can be performed with high accuracy while suppressing the time delay by the short transmission distance by dividing the two systems without reaching the full width of the plurality of lines.
Further, the two systems of intermittent feeding mechanisms can be opened and closed by two seedling feed cams that drive the vertical feed belts at the left and right lateral feed end positions of the seedling stage. A mesh material is provided at the upper end of the blower breather opening, and a lid that closes with its own weight is provided so that it can be opened and closed, so that when the intermittent supply mechanism is clogged, the flow of the granular fertilizer is ensured while ensuring the upstream flow. Can be prevented. Since the intermittent supply mechanism is set to the closed position when the seedling planting device is stopped in a predetermined state by the fixed position stop clutch, the fertilizer discharge at the time of stop can be stopped.

An embodiment of the present invention will be described with reference to the drawings.
FIGS. 1 and 2 are a side view and a plan view showing a riding type seedling transplanting machine 1, and this riding type seedling transplanting machine 1 is arranged on the rear side of a traveling vehicle body 2 through a lifting link device 3. Attached portion 4 is mounted so as to be movable up and down, and a main body portion of fertilizer applicator 5 is provided on the upper rear portion of traveling vehicle body 2.

  The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed in the front part of the airframe. Front wheel final cases 13 and 13 are provided on the left and right sides of the front wheel, and the front wheels 10 and 10 are attached to a front wheel axle that protrudes outwardly from a front wheel support portion that can change the direction of the front wheel final case. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18.

  The engine 20 as a prime mover is mounted on the main frame 15, and the rotational power of the engine is transmitted to the transmission case 12 via the first belt transmission device 21 and the second belt transmission device 23. The rotational power transmitted to the transmission case 12 is shifted by a transmission in the case, and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and also the fertilizer application device 5 by the fertilization transmission mechanism 27. Is transmitted to.

  The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A bonnet 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10, 10 is provided above the bonnet 32. The engine cover 30 and the bonnet 32 have horizontal floor steps 35 on the left and right sides of the lower end. The rear portion of the floor step 35 is a rear step 36 that also serves as a rear wheel fender. Further, on both the left and right sides of the front part of the traveling vehicle body 2, the spare seedling platforms 38, 38 on which the replenishment seedlings are placed can be pivoted to a position projecting laterally from the machine body and a position housed inside. Is provided.

  The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm 45 formed integrally with the upper link 40, and the upper link 40 is expanded and contracted by hydraulically extending the cylinder. It rotates up and down and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

  The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating movement to supply seedlings to the seedling outlets 51a,... When all the seedlings are supplied to the seedling outlet 51a,..., The seedling mount 51 for transferring the seedling downward by the seedling feeding belt 51b,..., And the seedling supplied to the seedling outlet 51a,. A seedling planting device 52, which is planted in a farm field, and a pair of left and right drawing markers 53, 53 for drawing the aircraft path in the next stroke to the topsoil surface are provided. In the transmission case 50, a total of three planting hook clutches 54 (1.2), 54 (3.4), 54 (5・ 6) is provided. These planted scissors clutches are turned on and off by the scissors clutch levers 110 (1.2), 110 (3.4), 110 (5.6) via cables 120,.

  A center float 55 and side floats 56, 56 are provided at the lower part of the seedling planting part 4. When the aircraft is advanced with these floats in contact with the mud surface of the field, the float slides while leveling the mud surface, and seedlings are planted by the seedling planting devices 52,. Each of the floats 55, 56, and 56 is pivotally attached so that the front end side moves up and down according to the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is detected as a vertical movement detection mechanism during planting work. The planting depth of the seedling is always maintained constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4.

  The fertilizer applicator 5 feeds the fertilizer (powder granule) stored in the fertilizer storage tank (powder granule storage tank) 60 by a fixed amount by a fertilizer feed part (powder granule feed part) 61, ... A fertilizer transfer hose (powder transfer pipe) 62, ... leads to fertilizer guides 63 attached to the left and right sides of the floats 55, 56, 56, and a grooved body 64 provided on the front side of the fertilizer guides 63, ... Is discharged into a fertilization groove formed in the vicinity of the side portion of the seedling planting strip. The pressure air generated by the blower 67 driven by the motor 66 is blown into the fertilizer transfer hose 62,... Via the air chamber 68 that is long in the left-right direction, and the fertilizer in the fertilizer transfer hose 62,. It is forcibly transferred to the fertilizer outlet.

Hereinafter, the structure of each part of the fertilizer applicator main body shown in FIGS. 3 and 4 will be described.
The fertilizer storage tank 60 in which the strips are integrally formed has a lid 60a that can be opened and closed with the rear side as a fulcrum. The lower part of the fertilizer storage tank 60 is funnel-shaped for each strip, and the lower part is connected to the upper ends of the fertilizer feeding parts 61. The fertilizer storage tank 60 is pivotally attached to a support plate 71 projecting upward from a fertilization frame 70 that is long in the left-right direction at the lower back of the fertilizer storage tank 60, and as shown by a two-dot chain line in FIG. 61,... Can be separated and rotated backward. At the normal position where the lower part of the fertilizer storage tank 60 is connected to the upper ends of the fertilizer feeding parts 61,..., The fertilizer storage tank 60 is fixed by the locking tool 72.

  An open / close shutter is provided below the fertilizer storage tank 60 to prevent the fertilizer from flowing out when the fertilizer supply from the fertilizer storage tank 60 to the fertilizer feeding unit 61 is stopped or when the fertilizer storage tank 60 is rotated. 73 is provided. The open / close shutter 73 is slidably supported by the slide support member 74 and is slid between a closed position indicated by a solid line and an open position indicated by a two-dot chain line in FIG. Yes. Since the locking tool 72 cannot be removed unless the opening / closing shutter 73 is closed, it is possible to prevent the fertilizer from flowing out by rotating the fertilizer storage tank 60 with the shutter 73 still open.

  A cylindrical portion 75 is formed below the opening / closing shutter 73 and is inserted into the upper portion of the fertilizer feeding portion 61 when the fertilizer storage tank 60 is connected to the fertilizer feeding portion 61. A gap is formed between the cylindrical portion 75 and the upper portion of the fertilizer feeding portion 61. When the fertilizer storage tank 60 is filled with fertilizer and the open / close shutter 73 is closed and the fertilizer storage tank 60 is rotated, the fertilizer storage tank 60 is positioned above the upper end of the fertilizer feeding unit 61 and below the open / close shutter 73. Since the fertilizer flows into the gap, the fertilizer is prevented from overflowing from the fertilizer feeding portion 61.

  At the lower end portion of the fertilizer storage tank 60, an elastic body 76a for buffering when the fertilizer storage tank 60 is connected to the fertilizer feeding portion 61 and a packing 76b for maintaining airtightness between the two are attached. The packing 76b comes into contact with the case of the fertilizer feeding portion 61 at two locations, that is, the upper end portion of the fertilizer feeding portion 61 and a portion slightly below it. For this reason, there is a space between the case of the fertilizer feeding part 61 and the packing 76b, and even if the positional relationship between the fertilizer storage tank 60 and the fertilizer feeding part 61 is slightly shifted, it is absorbed in this space, and the airtightness between the two is improved. Not damaged.

  The fertilizer feeding unit 61 has a built-in feeding roll 77 that feeds the fertilizer in the fertilizer storage tank 60 downward. The feeding roll 77 is a rotating body in which a plurality of (six in the illustrated example) grooves 77a,... Into which fertilizer enters the outer peripheral portion is formed, and a rectangular shaft portion 78a of the feeding shaft 78 provided in the left-right direction (in the illustrated example). Square shafts) are fitted so as to rotate together. When the feed roll 77 rotates in the direction of the arrow in FIG. 4, the fertilizer dropped and supplied from the fertilizer storage tank 60 is accommodated in the groove 77a and conveyed downward, and is fed out from the feed outlet 61a at the lower end.

  A brush 79 slidably in contact with the outer peripheral surface of the feeding roll 77 is detachably provided on the front side of the feeding roll 77. By restricting the brush 79 from receiving fertilizer overflowing from the groove 77a and dropping downward, The fertilizer is housed in the groove 77a in a state of being cut, and the fertilizer feed amount is kept constant.

  A connecting pipe 80 is provided at the feeding port 61a of the fertilizer feeding unit 61 and is slightly rearwardly lowered and communicates in the front-rear direction. The hopper side end of the fertilizer transfer hose 62 is connected to the rear end of the connection pipe 80. On the other hand, the front end portion of the connection pipe 80 is inserted and connected to the back surface portion of the air chamber 68. The left end portion of the air chamber 68 is connected to the blower 67 via the air switching pipe 81, and the pressure air from the blower is blown from the tubular portion 61 b to the fertilizer transfer hose 62 via the air chamber 68. Yes.

The fertilizer transfer hose 62 is supported from below by a hose holder 82 fixed to a fertilizer recovery pipe 85 that is long in the left-right direction, which will be described later, at a position slightly behind the connection pipe 80.
A fertilizer discharge port 83 is formed on the rear side of the feeding roll 77 at a position where the lower end is lower than the upper end of the feeding roll 77. The fertilizer discharge port 83 is inclined rearward and downward, and a discharge shutter 84 that can be opened and closed with an upper end side as a fulcrum is attached to an intermediate portion thereof. And the fertilizer discharge port 83 of each fertilizer supply part and the fertilizer collection | recovery pipe | tube 85 long in the left-right direction provided in the back of the fertilizer supply part 61 are connected by the fertilizer discharge pipe 83a.

  In the vicinity of the discharge port of the fertilizer transfer hose 62, as shown in the side view of FIG. 5, an intermittent supply mechanism 121 for controlling discharge of the granular fertilizer in conjunction with the seedling planting device 52 is provided. As shown in detail in the longitudinal sectional view (a) and the transverse sectional view (b) of FIG. 6, the intermittent supply mechanism 121 has a shutter 122 that opens and closes a supply path 123 c formed in the housing 123 attached to a support shaft 124. The support shaft 124 protrudes from the housing 123 and is supported, and an opening / closing lever 125 is attached, and the shutter 122 can be opened and closed by its swinging operation. A return spring 126 is attached to the opening / closing lever 125 so as to return the shutter 122 to the closed position.

  The opening / closing lever 125 is disposed in the operating range corresponding to the seedling feeding cam 232 attached to the feeding shaft 247 of the seedling feeding transmission portion 246, so that the seedling feeding cam 232 serves as an opening / closing control cam of the seedling planting device 52. It is configured so that it can be linked to the planting operation. In addition, a blower breather port 131 that branches and opens upward in the vicinity of the upstream side of the intermittent supply mechanism 121 is formed, a mesh material 131m is interposed, and a lid 132 that is closed by its own weight is provided at its upper end so as to be openable and closable. . The lid 132 prevents the scattering of the granular fertilizer by the mesh material 131m while securing the upstream flow when the intermittent supply mechanism 121 is clogged. Moreover, the shutter 122 prevents the fertilizer discharge | emission at the time of a stop by making it into a closed position when the seedling planting apparatus 52 stops in a predetermined state with a fixed position stop clutch.

  With the above-described configuration, the seedling feeding cams 232 and 232 are rotated correspondingly so that the seedling planting device 52 is planted for one rotation, so that the two open / close levers 125 and 125 corresponding to the seedling feeding cams 232 and 232 respectively. The vertical feed lever 249a is oscillated by the action at the position of the lateral feed end of the seedling stage 51 while the shutters 122 of the strips are interlocked and driven with respect to the respective support shafts 124a and 124b of the two systems. The vertical feed belt 51b of the seedling stage 51 is fed and driven from the support shaft 249 to which the knives are attached via the one-way clutch shaft 228a.

  With the above configuration, the amount of powder in the fertilizer storage tank 60 is controlled by the fertilizer supply unit 61, and then sent from the discharge port to the field according to the opening / closing operation of the intermittent supply mechanism 121 provided in the fertilizer transfer hose 62. Is done. At this time, since the seedling feeding transmission unit 246 performs a transmission operation in conjunction with the seedling planting operation of the seedling planting device 52, the intermittent feeding mechanism 121 is controlled by the seedling feeding transmission unit 246 by performing transmission control. With a simple transmission configuration, it is possible to perform an interlocking opening / closing operation with high accuracy in accordance with the seedling planting operation. Therefore, powdery medicinal fertilizer can be concentrated and supplied efficiently at a predetermined position determined in relation to the planted seedling. Moreover, when it applies to sowing, it can respond to the point sowing of a predetermined interval.

  As for the specific configuration of the multi-row planting, as shown in the configuration example of the transmission system development diagram of FIG. 7, the seedling is transmitted by the lateral feed portion 248 along the reciprocating feed groove 247 a formed in the feed shaft 247 of the seedling feed transmission portion 246. The stage 51 is laterally fed to the left and right, and the two seedling feed cams 232 and 232 that act on the vertical feed lever 249a of the seedling stage 51 at the left and right folded positions correspond to the lateral feed width of the seedling stage 51. The left and right support shafts 124a and 124b to which the corresponding two opening / closing levers 125 and 125 are attached, respectively, divide the opening / closing transmission system into two parts and connect the shutters 122 of the respective strips.

  In this way, in the case of a plurality of planting configurations, the intermittent supply mechanisms 121... That are arranged in parallel in the horizontal direction are divided into two groups on the left and right sides, and intermittent supply is performed by the open / close levers 125 and 125 arranged at a predetermined distance. The mechanisms 121 are driven to open and close. Therefore, the open / close control cam acting on the open / close levers 125, 125 can drive the intermittent supply mechanism 121 to open / close in a shared configuration with the seedling feed cam 232 for the vertical feed drive of the seedling platform 51, and intermittent supply is also possible. The opening / closing transmission system of the mechanism 121 can be opened / closed with high accuracy while suppressing a time delay by a short transmission distance by dividing the two systems without reaching the full width of the plurality of strips.

  Further, as shown in the configuration example of the transmission system development diagram of FIG. 8, the seedling feeding transmission portion 246 is substantially the same in the left and right in the configuration example in which the seedling feeding cams 232 and 232 are respectively attached to both ends of the feeding shaft 247. Since it can be constituted by two systems of support shafts 124a and 124b, the time delay can be minimized.

  Next, another configuration example of the intermittent supply mechanism will be described. As shown in a side view (a) and a cross-sectional view (b) in FIG. 9, the intermittent supply mechanism 141 has a rotating shutter 143 that opens and closes a supply path 142 c formed in the housing 142 attached to a support shaft 144. The shaft 144 protrudes from the housing 142 and is pivotally supported, and an open / close lever 145 is attached to constitute a rotary shutter 143 that opens and closes by a rotating operation. By attaching a positioning cam 146 to the support shaft 144 and connecting a spring 148 to the positioning arm 147 to apply a positioning torque, it is possible to improve the durability as well as a reliable opening / closing operation by rotation. In addition, the peripheral edge of the rotary shutter 143 is provided with an elastic molding that fills the outer peripheral gap, thereby preventing powder particles from leaking.

  Next, an air-type intermittent supply mechanism will be described. As shown in the longitudinal sectional view of FIG. 10, the air-type intermittent supply mechanism 151 is provided with a shutter 153 that opens and closes the supply path 152 c of the housing 152 and forms an air port 154 that guides air into the housing 152. . The shutter 153 is energized in the closing direction by a torque spring to hold the granular medicinal manure, and receives the high-pressure air from the air port 154 to open the shutter 153 and to deliver the granular medicinal manure from the discharge port 155. Configure.

  When the discharge port 155 of the intermittent supply mechanism 151 having the above-described configuration is disposed directly above the groove generator, a predetermined amount of fertilizer received in the housing 152 is sent out by high-pressure air without breaking the fertilizer grains. The seedlings can be spotted directly at the predetermined timing. Therefore, it is possible to efficiently fertilize the necessary portions.

  Next, an example in which fertilization control is performed using a grooving device will be described. As shown in the cross-sectional view of FIG. 11, a fertilization guide 161 is attached so as to cover the discharge portion 62e of the fertilizer transfer hose 62, and the fertilization guide 161 is grooved. The support lever 162 is configured to be movable in the front-rear direction at a position in contact with the rear of the body 64, and the support lever 162 that swings and supports the fertilizer application guide 161 in the front-rear direction is pivotally supported by the support shaft 163, and one end thereof is a seedling. It is arranged facing the feed cam 232.

  The discharge part 62e is formed of an elastic cylinder material and guides the fertilizer to the vicinity of the field scene. The fertilizer transfer hose 62 is attached to the fertilizer guide 161 via the rubber boot 161r so that the fertilizer guide 161 can follow the swinging. To do. As a result, the support lever 162 swings back and forth in accordance with the rotation of the seedling feed cam 232, so that the discharge portion 62e changes the speed between high and low with respect to the field scene passing at a constant speed by swinging back and forth. As a result, even if fertilizer is continuously discharged from the discharge unit 62e at a constant flow rate, fertilizer can be applied intensively in the field scene at intervals linked to the planting operation of the seedling planting device 52.

  FIG. 12 is a transmission system and the like of the fertilizer application blower. The blower 171 is configured integrally with the electric motor and disposed in the vicinity of the engine 20 and is transmitted by the belt 172, and a duct is disposed up to the feeding portion 61 of the fertilizer applying apparatus. By installing a one-way clutch 172c on the pulley shaft of the belt 172, the engine 20 is electrically driven at a higher speed when the engine 20 is running at a lower speed, and in the opposite case, the power supply to the motor is stopped, thereby supplying air by driving the belt. It can be charged by power generation by the electric motor. Therefore, it is possible to secure the amount of air blown at a low engine speed with a simple configuration without requiring special power generation means in the engine room.

It is a side view of a riding type seedling transplanter. It is a top view of a riding type seedling transplanter. It is an enlarged side view of a fertilizer applicator main-body part. It is an enlarged side view of the feeding part of a fertilizer applicator. It is a side view of the transmission mechanism of an intermittent supply mechanism. It is the longitudinal cross-sectional view (a) and transverse cross-sectional view (b) of an intermittent supply mechanism. It is a transmission system expansion | deployment figure of the seedling planting part of multi-row planting. It is a transmission system expansion | deployment figure of the seedling planting part of the multi-row planting of another example. It is the side view (a) and cross-sectional view (b) of the intermittent supply mechanism of another example. It is a longitudinal cross-sectional view of an air-type intermittent supply mechanism. It is sectional drawing of the grooving device comprised so that fertilization control was possible. It is a transmission system etc. of the blower for fertilizer applicators.

1 Seedling transplanter 2 Traveling body (airframe)
DESCRIPTION OF SYMBOLS 4 Seedling planting part 5 Fertilizer 25 Planting clutch case 26 Planting transmission shaft 50 Transmission case 51 Seedling stand 51a Seedling outlet 51b Belt 52 Seedling planting device 52a Seedling planting tool 54 Planting rod clutch 60 Fertilizer storage tank (Powder tank)
61 Fertilizer feeding part 62 Fertilizer transfer hose (transfer pipe)
121 Intermittent supply mechanism 122 Shutter 123 Housing 123c Supply path 124 Support shaft 124a, 124b Support shaft 125 Opening / closing lever 228a One-way clutch shaft 232 Seedling feed cam 246 Seedling feed transmission portion 247a Seedling feed groove 247 Feed shaft 248 Side feed portion 249a Lever 249 Spindle

Claims (3)

A machine body (2) capable of traveling on the field, a seedling planting device (52) attached to the rear part thereof for planting seedlings, and for sequentially supplying seedlings from the seedling mat to the seedling planting device (52) A seedling platform (51) that feeds the seedling mat in the horizontal and vertical directions, and the seedling platform (51) in the horizontal and vertical directions in conjunction with the planting operation of the seedling planting device (52). In a seedling transplanting machine provided with a seedling feeding transmission section (246) to be driven,
A seedling planting part (4) is mounted on the rear side of the machine body (2) through a lifting link device (3) so as to be movable up and down, and a main body portion of the fertilizer application device (5) is provided on the rear upper side of the machine body (2). ,
The seedling planting part (4) includes a seedling placing stand (51) and a seedling planting device (52), and has floats (55, 56) at the lower part thereof,
The fertilizer application device (5) includes a powder tank (60) for storing the powder, a feeding part (61) for controlling the feed amount, a transfer pipe (62) for guiding the powder, together consisting intermittent feed mechanism for opening and closing controls the transfer tube (62) (121) receives power from the seedling feeding transmission section (246) and opening and closing the intermittent feed mechanism (121),
The intermittent supply mechanism (121) is provided with an open / close lever (125) for opening and closing the supply path, and the open / close lever (125) is connected to the feed shaft (247) of the seedling feed transmission section (246). Corresponding to the attached seedling feeding cam (232), it is arranged in its working range, and the seedling feeding cam (232) is used as an open / close control cam so that it can be operated in conjunction with the planting operation of the seedling planting device (52). ,
The fertilizer is guided to the fertilizer guide (63) attached to the left and right sides of the float (55, 56) with the transfer pipe (62),
Thus, the seedling feeding cam (232) rotates corresponding to the seedling planting device (52) so as to plant one strain for one rotation, and acts on the opening / closing lever (125) corresponding thereto. At the lateral feed end position of the seedling stage (51), the seedling stage is supported from the support shaft (249) to which the vertical feed lever (249a) that swings by its action is attached, through the one-way clutch shaft (228a). A seedling transplanting machine that feeds and drives the longitudinal feed belt (51b) of (51) . The seedling transplanter according to claim 1, characterized in that a blower breather port (131) is formed which branches and opens upward near the upstream side of the intermittent supply mechanism (121) . The seedling planting device (52) and the seedling mounting table (51) are configured in parallel on the left and right for each planting line for a plurality of parallel planting operations, and a plurality of transfer pipes (62 ) in parallel to the left and right, each of the intermittent feed mechanism (121) is divided into two groups of left and right, and place these closing lever for opening and closing the intermittent feed mechanism (121) in groups (125), these closing The lever (125) and the corresponding seedling feed cam (232) are arranged at a distance of at least the lateral feed width of the seedling mount (51) , and each of these opening / closing levers (125) is attached 2 For each support shaft (124a, 124b) of each of the two groups, the shutters (122 ...) of each strip are interlocked and driven,
A mesh material (131m) is provided at the upper end of the blower breather port (131), and a lid (132) that closes by its own weight is provided to be openable and closable.
Two seedling feed cams (232) are provided to drive the longitudinally split belt (51b) at the left and right lateral feed end positions of the seedling mount (51),
The seedling transplanter according to claim 2 , wherein the intermittent feeding mechanism (121) is set to a closed position when the seedling planting device (52) is stopped in a predetermined state by a fixed position stop clutch .

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