JP5763482B2 - Paddy field machine - Google Patents

Description

  The present invention provides a plurality of groove forming devices that form grooves for supplying granular materials to a farm scene at a plurality of locations in the horizontal direction of the machine body, and a plurality of conveyances that extend the plurality of groove forming devices from a powder material feeding portion. The present invention relates to a paddy field work machine provided with a working unit having a plurality of vertical communication pipes that communicate with pipes individually.

  Conventionally, for example, there has been a rice transplanter described in Patent Document 1. This rice transplanter is provided with a feeding device that feeds fertilizer out of a hopper, and this feeding device is configured to communicate with a fertilizer opening through a flexible hose, a fixed hose, and boots, and fertilize the field.

JP-A-7-170831

If a vertical pipe is used to connect the conveying pipe extending from the granular material feeding section and the groover, the granular material from the conveying pipe can easily flow down to the groover. It is possible to smoothly supply the granular material to the vessel.
When a communication pipe is used, if there is an obstacle such as a member or device in the working section between the conveying pipe to be communicated and the groove forming device, bending to avoid interference between the communication pipe and the obstacle The part needs to be provided in the communication pipe. If special communication pipes with bent parts corresponding to obstacles with different positions and shapes are prepared so that interference with obstacles can be avoided even if the position and shape of the obstacles are different, the shape of the bent parts Therefore, it is necessary to manufacture a plurality of types of communication pipes with different costs, which increases the cost.

  The object of the present invention is to obtain an advantage in terms of cost and assembly work regardless of the presence of an obstacle between the conveying pipe and the groove producing device, although the groove producing device and the conveying pipe are communicated by the communication pipe. It is to provide a paddy field machine that can be used.

The first aspect of the present invention is a plurality of groovers that form grooves for supplying powder particles to a farm scene at a plurality of locations in the lateral direction of the machine body, and a plurality of grooves that extend from the powder particle feeding unit. In a paddy field work machine provided with a work section having a plurality of vertical communication pipes that communicate with each of the transport pipes separately,
The plurality of communication pipes are formed so as to have a bent part between both end parts and to have the same bent part form,
A connecting portion for connecting each of the plurality of communication pipes to the transport pipe side of the plurality of communication pipes so as to be applicable to any communication of the plurality of transport pipes and the plurality of groove forming devices. And the same specification for connection of the connecting part for connecting to the groover side,
When the plurality of communication pipes are different from each other in the transport pipe and the groove producing device to be communicated with each other, they are configured so that they are attached by switching up and down.
The plurality of communication pipes are provided with an indicator for displaying an attachment posture when applied to communication of the plurality of transport pipes and the plurality of groove forming devices.

According to the configuration of the first aspect of the present invention, only by preparing one kind of communication pipe, avoiding interference between the communication pipe and the obstacle, the plurality of groove forming devices are provided with the corresponding predetermined ones of the plurality of transport pipes. The communication pipe can be communicated with the communication pipe, and attachment of the communication pipe with an appropriate mounting posture can be facilitated.
That is, the interference between the obstacle and the communication pipe existing between the groove generator and the transport pipe can be avoided by the bent portion of the communication pipe.
In the case of a grooving device where the position and shape of the obstacle existing between the conveying pipe and the grooving device are the same or not very different, the position of the bent part of the communication pipe relative to the obstruction may be made the same. The mounting posture of the communication pipe for the groove is the same regardless of the difference in the groove generator. If the position and shape of the obstacle located between the transport pipe and the groover are different, the position of the bent part of the communication pipe with respect to the obstacle must be changed, and the mounting position of the communication pipe for this groover Will be different depending on the groover. Set the same connection specifications for the connecting part for connecting to the conveying pipe side of the plurality of communication pipes and the connecting part for connecting to the groover side, and to each conveying pipe side and each groover side. Because the same type of communication pipe can be connected regardless of the mounting orientation change, there are differences in the position and shape of obstacles in order to connect multiple groovers to multiple transport pipes. However, the mounting posture can be changed so that the position of the bent portion with respect to the obstacle is changed, and communication can be made with the same type of communication pipe.
Performs mounting of the communicating pipe while readily recognized by index attached only attitude of the communication pipe can be attached accurately easily the predetermined mounting position regardless differences obstacle communication pipe.

  Therefore, the conveyance pipe and the groover can be communicated by the communication pipe to smoothly supply the powder and granule to the groover, but there is an obstacle between the conveyance pipe and the groover. Regardless, it is only necessary to prepare one kind of communication pipe, and it is possible to easily attach the communication pipe with a predetermined mounting posture with high accuracy, and to obtain an inexpensive and easy assembly operation.

According to the configuration of the first aspect of the invention , by changing the vertical direction of the communication pipe, the position of the bent portion of the communication pipe in the communication pipe can be changed in the vertical direction, and interference between the obstacle and the communication pipe can be avoided.

  Therefore, it is possible to connect the plurality of groove forming devices to the communication pipe with one type of communication pipe while avoiding interference between the obstacles whose positions are different in the vertical direction and the communication pipe.

In this 2nd invention , when the said conveyance pipe and the said groove production device which should be connected differ, the said communication pipe is comprised so that it may replace and attach front-back direction.

According to the configuration of the second aspect of the invention , by changing the front and rear direction of the communication pipe, the position of the bent portion in the communication pipe can be changed in the front and rear direction, and interference between the obstacle and the communication pipe can be avoided.

  Therefore, it is possible to connect the plurality of groove forming devices to the communication pipe with one kind of communication pipe while avoiding interference between the obstacle and the communication pipe whose positions are different in the front-rear direction.

In the third aspect of the present invention , the communication pipe is provided with a connecting hook that is detachable with respect to the side-facing support rod on the aircraft side, and the communication pipe is positioned in the lateral direction with respect to the support rod. A locking pin is provided to be mounted across the communication pipe and the support rod.

According to the configuration of the third aspect of the invention , the engagement of the connecting hook with the support rod can prevent displacement of the communication pipe in the direction orthogonal to the support rod with respect to the support rod, and the communication pipe is supported by positioning with the locking pin. It is possible to prevent slippage in the direction along the support rod with respect to the rod.

  Therefore, it is possible to easily fix the communication pipe to the support rod so as to be held in a predetermined mounting posture by simply engaging the connecting hook with the support rod and attaching the locking pin over the communication pipe and the support rod.

It is a side view which shows the whole paddy field machine. It is a top view which shows the whole paddy field machine. It is a side view which shows a working part. It is a front view which shows a granular material supply part. It is a vertical side view which shows the site | part which a groove making device and a communicating pipe communicate. It is a front view which shows the site | part which a groove making device and a communicating pipe communicate. It is a vertical side view which shows the arrangement | positioning part of an exhaust port. It is a cross-sectional top view which shows the site | part which a groove making device and a communicating pipe communicate. (A) is a front view which shows the fixed state of a communication pipe, (b) is a side view which shows the fixed state of a communication pipe. (A) is a front view showing a communication pipe, (b) is a right side view showing the communication pipe, and (c) is a rear view showing the communication pipe. It is a front view which shows the attachment point of a communication pipe. It is a front view which shows the granular material supply part in a paddy field working machine provided with 2nd Embodiment. It is a front view which shows the granular material supply part in a paddy field working machine provided with 3rd Embodiment.

[First Embodiment]
FIG. 1 is a side view showing an entire paddy field working machine according to an embodiment of the present invention. FIG. 2 is a plan view showing the entire paddy field working machine according to the embodiment of the present invention. As shown in these drawings, the paddy field machine according to the embodiment of the present invention is self-propelled by a pair of left and right steering operations and driveable front wheels 10 and 10 and a pair of left and right driveable rear wheels 11 and 11. The working part 4 is connected to the rear part of the riding type traveling machine body 1 via the link mechanism 3 that moves up and down by the operation of the hydraulic cylinder 2, and is provided on the rear side of the driver seat 13 of the traveling machine body 1. A granular material supply device 5 including a tank 21 is provided.

The traveling machine body 1 will be described.
As shown in FIGS. 1 and 2, the traveling machine body 1 transmits power from an engine 6 mounted on the front thereof via a belt-type transmission device 7 and a hydrostatic continuously variable transmission 8. 9 and is configured in a four-wheel drive type in which traveling power from the gear type transmission device 9 is transmitted to the left and right front wheels 10 and the rear wheels 11. On the rear side of the traveling machine body 1, a riding-type driving unit 14 including a steering wheel 12 that steers the left and right front wheels 10 and a driving seat 13 is formed.

The working unit 4 will be described.
FIG. 3 is a side view showing the working unit 4. As shown in FIG. 1 and FIGS. 1 and 2, the working unit 4 includes an intermediate part in the lateral direction of the working unit body via a connecting frame 3 c at the rear ends of the upper link 3 a and the lower link 3 b constituting the link mechanism 3. The working unit body frame 30 is configured to include a connecting member 28 that is long in the lateral direction of the working unit body. The connecting member 28 is made of a hollow steel material having a rectangular longitudinal cross-sectional shape. In addition to the connection member 28, the work unit body frame 30 extends from the three positions in the longitudinal direction of the connection member 28 toward the rear of the work unit body, and the work unit is connected to the front end side by the connection member 28. It is configured to include three planting drive cases 29 facing in the front-rear direction of the working unit body, which are arranged at predetermined intervals in the lateral direction of the body.

  The working unit 4 includes six seedling planting mechanisms 18 that are provided so as to be driven one by one on both lateral sides of the rear end of each planting drive case 29, and the lower end side above the front end side of the working unit body frame 30. The seedling stage 17 provided in an inclined posture located on the rear side of the working unit body, and the lower part of the working unit body frame 30 arranged in the lateral direction of the working unit body in an arrangement located one by one below each planting drive case 29. Are provided with three grounding floats 15. Each seedling planting mechanism 18 includes a rotary rotor 18a that is rotatably supported by a planting drive case 29. The rotary rotor 18a is rotationally driven to be distributed at both ends of the rotary rotor 18a. A pair of planting arms 18b and 18b are configured so as to take out seedlings alternately from the lower end of the seedling mount 17 and perform a seedling planting exercise so as to plant the taken out seedlings in a field scene.

As shown in FIGS. 3 and 4, the working unit 4 includes a feed case 16 to which working power from the gear type transmission device 9 of the traveling machine body 1 is input in a state supported by the connecting member 28. Is transmitted from the feed case 16 to each planting drive case 29 via the transmission shaft 31 a accommodated in the transmission case 31 to drive the six seedling planting mechanisms 18. The working unit 4 includes a seedling lateral feed mechanism 40 having a seedling lateral feed shaft 41 supported on the feed case 16 so that one end side of the feed case 16 is freely rotatable. The work unit is reciprocated in the lateral direction in conjunction with the 18 seedling planting movement. Accordingly, the seedling placing stand 17 sequentially takes out the seedlings from the lateral one end side to the other end side of the lower end portion of the mat-like seedling placed on the seedling placing stand 17 by each seedling planting mechanism 18. Then, the mat-like seedlings placed on the six seedling placement parts are reciprocated in the lateral direction with respect to the seedling planting mechanism 18. The working unit 4 includes a seedling vertical feed mechanism 45 having a seedling vertical feed shaft 46 supported on one end of the feed case 16 so as to be freely rotatable. When the seedling placing table 17 to be reciprocated reaches the left and right stroke ends. The seedling vertical feed belt 47 provided in the six seedling placement units of the seedling stage 17 is rotationally driven by a seedling vertical feed mechanism 45 for a predetermined stroke, and the mat-like seedlings placed on the seedling stage 17 are seeded. The planting mechanism 18 feeds the seedlings to the seedling planting mechanism 18 by an amount corresponding to the size of the seedlings taken out in the vertical direction.

  The working unit 4 includes a descending working state in which each grounding float 15 is lowered to the field scene by the lifting operation of the link mechanism 3 by the hydraulic cylinder 2, and a non-working state in which each grounding float 15 is elevated from the field scene. Is moved up and down. The working unit 4 that has been lowered to the descending working state has the seedling planting mechanism 18, the seedling lateral feed mechanism 40, and the seedling longitudinal length by working power transmitted from the traveling machine body 1 to the feed case 16 as the traveling machine body 1 travels. The feed mechanism 45 is driven and six seedlings are planted by the six seedling planting mechanisms 18. Each seedling planting mechanism 18 plants a seedling on a field scene prepared in advance by sliding the grounding float 15.

The granular material supply apparatus 5 is demonstrated.
As shown in FIGS. 1 and 2, the powder supply device 5 travels below a tank 21 formed in a hopper shape, a powder feed part A provided at the bottom of the tank 21, and a driver seat 13. A blower 22 provided in a state of being supported by the machine body frame of the machine body 1 and six powder body supply units K provided side by side in the work unit machine body lateral direction are provided on the work unit 4.

  The granular material feeding part A is provided with four feeding mechanisms 20 that are arranged at the bottom of the tank 21 in the lateral direction of the traveling machine body. The four feeding mechanisms 20 include a feeding case (not shown) in which a feeding roll (not shown) that is rotationally driven by power from a transmission system that transmits working power to the working unit 4 is provided. The powdered fertilizer stored in the container is fed out to a pair of left and right delivery parts 20a, 20a provided at the lower part of the feeding case by a feeding roll.

  The blower 22 is driven by an electric motor, and sucks air in the vicinity of the exhaust muffler whose temperature has been raised by the heat radiation of the exhaust muffler 36 of the engine 6 and the exhaust of the exhaust muffler 36 through the intake duct 35 and has a temperature higher than normal temperature. Conveyance air is generated, and the generated conveyance air is supplied to each of the delivery units 20 a of the four feeding mechanisms 20 through the air duct 37.

  The transport pipe 27 extends from one or both of the pair of left and right delivery parts 20 a, 20 a included in each of the four feeding mechanisms 20 toward the rear of the traveling machine body, and a total of six transport pipes 27 extend from the four feeding mechanisms 20. The extended end part is connected to each of the six granular material supply parts K separately. The conveyance tube 27 is configured by a flexible hose so that the working unit 4 can be raised and lowered by bending.

  As shown in FIGS. 3 and 5, the six granular material supply units K are arranged in such a manner that the groove producing device 19 constituting each granular material supply unit K is located near the front of one seedling planting mechanism 18. Lined up in the horizontal direction of the aircraft. Each of the six granular material supply units K communicates the groove forming device 19 supported by the grounded float 15 and a predetermined one of the six conveying tubes 27 to the groove forming device 19. The communication pipe 24 is provided.

  As shown in FIGS. 3, 4, and 5, each grooving device 19 includes a supply portion 19 a made of a bent sheet metal formed so that the shape in the vertical direction of the body is a groove shape that opens toward the rear of the body. The groove portion 19b extends forward from the lower front side of the supply portion 19a. Each groover 19 is supported by the ground float 15 by connecting the groove 19b to the bottom of the ground float 15 with a connecting bolt 19d.

  The communication pipe 24 is disposed on the back side of the seedling platform 17 in a vertical posture of the working unit body. The communication pipe 24 is arranged in such a posture that the distance from the back surface of the seedling table 17 on the upper end side is larger than the distance to the seedling table slide guide rail 17b on the lower end side in a side view of the working unit. The communication pipe 24 has an upper end connected to the connecting portion 33a on the transport pipe 27 side and a lower end connected to the connecting portion 25D on the groove forming side, whereby the transport pipe 27 and the supply portion 19a of the groove forming device 19 are connected to each other. Is in communication. The connecting portion 33 a on the transport pipe side is configured by an end portion of the joint 33 attached to the extending end portion of the transport tube 27. The connecting portion 25 </ b> D on the groove forming side is constituted by the upper end portion of the cylindrical body 25 in which the lower end side is inserted into the supply portion 19 a of the groove forming device 19.

Therefore, the granular material supply device 5 performs fertilizer application work for supplying fertilizer to the side of each of the six planted seedlings as the working unit 4 performs the six-planted seedling planting operation.
That is, the fertilizer stored in the tank 21 by the granular material feeding unit A is fed to each sending unit 20a by the four feeding mechanisms 20, and each of the six transport pipes 27 sends the fertilizer fed to the sending unit 20a to the blower 22. Is supplied to the communication pipe 24 of the granular material supply unit K by the conveying air supplied to the conveying tube 27 through the delivery unit 20a. Each of the six granular material supply units K supplies the fertilizer supplied from the conveyance pipe 27 to the communication pipe 24 along the communication pipe 24 by the conveyance air from the blower 22 and supplies the fertilizer to the supply unit 19 a of the groove generator 19. Grooves are formed at six locations in the horizontal direction of the machine body in the farm scene by using the six grooving devices 19 , and the fertilizer from the communication pipe 24 is supplied to the formed grooves by the supply unit 19a. Each grooving device 19 forms a groove and supplies fertilizer on the front side of the machine body from the seedling planting location by the seedling planting mechanism 18. The groove after the fertilizer is supplied by the grooving device 19 is filled by mud squeezing by a backfill plate 39 disposed behind the grooving device 19 and provided in the grounded float 15.

  The communication pipes 24 constituting the six granular material supply units K are configured by one type of communication pipe common to the six granular material supply units K. FIG. 10A is a front view showing the communication pipe 24 common to the six granular material supply units K. FIG. FIG. 10B is a right side view showing the communication pipe 24 common to the six granular material supply units K. FIG. FIG. 10C is a rear view showing the communication pipe 24 common to the six powder body supply units K. FIG. As shown in these drawings, the communication pipe 24 common to the six granular material supply units K is made of a material having inflexibility. Specifically, the communication pipe 24 is formed of a translucent synthetic resin material. Connecting portions 81 and 82 each having a notch-shaped positioning recess 80 are provided at both ends of the communication pipe 24. One end side of the communication pipe 24 is connected to the connection portion 33a on the transport pipe 27 side and the connection portion 25D on the groove forming side by the connection portion 81 on one end side and the connection portion 82 on the other end side. The connection specification of the connection part 81 and the connection specification of the connection part 82 on the other end side are set to be the same. Specifically, the connecting portions 81 and 82 on the one end side and the other end side are fitted on the connecting portions 33a and 25D on the transport tube side and the groove forming side, and the connecting portions 33a on the transport tube side and the groove forming side are connected. , 25D are configured to be engaged with an annular protrusion B (see FIG. 5) provided on the outer peripheral surface of the 25D by an annular recess to prevent the protrusion. A bent portion 83 is provided between both ends of the communication pipe 24. The bent portion 83 bends the communication pipe 24 at two bent portions 84a and 84b located near the opening on one end side of the communication pipe 24 and two bent portions 85a and 85b located near the opening on the other end side. It is formed as follows. The bending portion 83 is configured such that the axial core 81a of the connecting portion 81 on one end side and the axial core 82a of the connecting portion 82 on the other end side are deviated from each other in the front-rear direction of the communication pipe 24. The shaft core 81a of the connecting portion 81 and the shaft core 82a of the connecting portion 82 on the other end side are formed to be the same shaft core. The shaft core 81a of the connecting portion 81 on one end side and the shaft core 82a of the connecting portion 82 on the other end side are parallel or substantially parallel.

  As shown in FIGS. 10A, 10 </ b> B, and 10 </ b> C, a first index 91 [see FIG. 11A] is provided on the rear side peripheral portion on one end side of the communication pipe 24. A second indicator 92 (see FIG. 11B) is provided on the rear peripheral portion on the other end side, and a third indicator 93 is provided on the front peripheral portion on the other end side of the communication pipe 24 [see FIG. )] And a fourth index 94 [see FIG. 11 (d)] is provided on the front peripheral portion on one end side of the communication pipe 24. As the first to fourth indicators 91 to 94, long ridges 95 are provided in the circumferential direction of the communication pipe 24. The protrusion 95 is integrally formed on the communication pipe 24 with a resin material. The difference between the first to fourth indicators 91 to 94 is displayed based on the difference in the number of the protrusions 95.

  As shown in FIG.4 and FIG.11 (a), the 1st parameter | index 91 is the 4th granular material supply part K (4th granular material supply part) from the left end among the six granular material supply parts K. The mounting posture to be provided in the communication pipe 24 constituting K) is displayed.

  That is, as shown in FIGS. 4 and 11 (a), when assembling the fourth granular material supply part K, the communication pipe 24, the first index 91 is the position of the connecting part 25D on the groove forming side, The first mounting posture is located on the side facing the front of the working unit body. Then, the rear side of the communication pipe 24 faces the front of the working part, and is connected to the groove-connector-side connecting part 25D by the connecting part 81 on one end side, and the connecting part 33a on the transport pipe side by the connecting part 82 on the other end side. The lever guide 75 located on the back side of the seedling platform 17 is detoured to the lateral side thereof, and the connecting member 28 is detoured to the rear side of the working unit so that the back side of the seedling platform 17 is attached. The conveyance pipe 27 and the groove forming device 19 are communicated with each other through the working unit body vertical direction. In this case, the positioning recess 80 formed by a notch provided in the connecting portion 81 on one end side of the communication pipe 24 engages with the positioning protrusion 25t provided in the connecting portion 25D on the groove forming side. The lever guide 75 performs an operation guide for the planting depth changing lever 76 and the seedling removal amount changing lever 77. The planting depth change lever 76 changes and adjusts the connection height of the grounding float 15 with respect to the working unit body frame 30 to change the seedling planting depth by the seedling planting mechanism 18. The seedling removal amount changing lever 77 moves and adjusts the seedling placing stand 17 in the seedling vertical feed direction to change the seedling removal amount in the seedling vertical direction by the seedling planting mechanism 18.

  As shown in FIG.4 and FIG.11 (b), the 2nd parameter | index 92 is the 6th granular material supply part K (6th granular material supply part) from the left end among the six granular material supply parts K. The mounting posture to be provided in the communication pipe 24 constituting K) is displayed.

  That is, as shown in FIG. 4 and FIG. 11 (b), when assembling the sixth granular material supply part K, the communication pipe 24 is positioned, and the second index 92 is positioned at the groove-connector-side connection part 25D. The second mounting posture is located on the side facing the front of the working unit body. Then, the communication pipe 24 is replaced with the case where the rear side is the front of the working unit as in the case where the fourth granular material supply unit K is configured, and the vertical direction is configured as the case where the fourth granular material supply unit K is configured. Connected to the groove-connector-side connecting portion 25D at the other end-side connecting portion 82, and connected to the conveying tube-side connecting portion 33a at one end-side connecting portion 81, and placed on the seedling. The marker operating device 78 located on the back side of the right end portion of the table 17 is bypassed to the rear side of the working unit, and the conveying tube 27 and the groove generator 19 are communicated with each other through the back side of the seedling mounting table 17 in the vertical direction of the working unit body. . In this case, the positioning recess 80 formed by a notch provided in the connecting portion 82 on the other end side of the communication pipe 24 engages with the positioning protrusion 25t provided in the connecting portion 25D on the groove forming side. The marker operating device 78 includes an electric motor, and operates the marker locking hook 78a by this electric motor to move the right marker 42 up and down.

  As shown in FIG.4 and FIG.11 (c), the 3rd parameter | index 93 is the granular material supply part K (1st granular material supply part K) of the left end among the six granular material supply parts K. As shown in FIG. The mounting posture to be provided for the communication pipe 24 to be configured is displayed.

  That is, as shown in FIG. 4 and FIG. 11 (c), when assembling the first granular material supply unit K, the communication pipe 24, the third index 93 is positioned at the groove-connector-side connection unit 25 </ b> D. The third mounting posture is located on the side facing the front of the working unit body. Then, the communication pipe 24 is replaced with the rear side when the front side constitutes the fourth and sixth powder supply parts K and is directed forward in the working part, and the up and down direction is the sixth powder supply part K. It is the same as the case where it is configured, and it is connected to the connecting portion 25D on the groove forming side with the connecting portion 82 on the other end side in the up-and-down direction replaced with the case where the fourth powder body supplying portion K is configured, The connection portion 81 on one end side is connected to the connection portion 33a on the transport tube side, and the marker operating device 79 located on the back side of the left end portion of the seedling mounting table 17 is bypassed to the rear side of the working unit and the seedling mounting table The conveyance pipe 27 and the groove forming device 19 are communicated with each other through the back side of the work unit body 17 in the vertical direction. In this case, the positioning recess 80 formed by a notch provided in the connecting portion 82 on the other end side of the communication pipe 24 engages with the positioning protrusion 25t provided in the connecting portion 25D on the groove forming side. The marker operating device 79 includes an electric motor, and operates the marker locking hook 79a with this electric motor to move the left marker 42 up and down.

  As shown in FIG. 4 and FIG. 11 (d), the fourth index 94 is the second, third and fifth granular material supply units K (second and second) from the left end of the six granular material supply units K. The attachment posture to be provided in the communication pipe 24 constituting the 3,5 granular material supply unit K) is displayed.

  That is, as shown in FIG. 4 and FIG. 11 (d), when assembling the second, third, and fifth powder supply parts K, the communication pipe 24 is connected to the fourth index 94 on the groove forming side. The fourth mounting posture is set so as to face the working unit body forward direction on the side where the portion 25D is located. Then, the communication pipe 24 is the same as the case where the front surface side constitutes the first granular material supply unit K, and is replaced with the case where the fourth and sixth granular material supply units K are configured. And the vertical direction is the same as the case where the fourth granular material supply unit K is configured, and the vertical direction is replaced with the case where the first and sixth granular material supply units K are configured. The connecting portion 81 is connected to the connecting portion 25D on the groove forming side, and the connecting portion 82 on the other end side is connected to the connecting portion 33a on the communication pipe side.

  The communication pipe 24 in the case of constituting the second and third granular material supply units K bypasses the seedling horizontal feed shaft 41 and the connecting member 28 located on the back side of the seedling mounting table 17 on the rear side of the working unit and places the seedlings thereon. The conveyance pipe 27 and the groove forming device 19 are communicated with each other through the back side of the work base 17 in the vertical direction of the working unit body.

  The communication pipe 24 in the case of constituting the fifth granular material supply unit K bypasses the seedling vertical feed shaft 46 and the connecting member 28 located on the back side of the seedling platform 17 to the working unit rear side, and The conveying pipe 27 and the groove forming device 19 are communicated with each other through the back side in the vertical direction of the working unit body. In these cases, the positioning concave portion 80 formed by a notch provided in the connecting portion 81 on one end side of the communication pipe 24 and the positioning protrusion 25t provided in the connecting portion 25D on the groove forming side are engaged.

  As shown in FIG. 10, one end of the communication pipe 24 is provided with a pair of connection hooks 50, 50 that are allocated to the front peripheral portion and the rear peripheral portion, and the front peripheral portion is connected to the other end of the communication pipe 24. And a pair of connecting hooks 51, 51 distributed to the rear peripheral portion, and a pair of upper and lower communication pipes 24 assembled to the first to sixth powder supply parts K are provided on the working unit body side. The support hooks 53 and 54 are configured to be fixed by the connecting hooks 50 and 51, and the locking pins 52 attached over the communication pipe 24 and the upper support hook 53. Each of the connecting hooks 50 and 51 is integrally formed on the communication pipe 24 with a synthetic resin material.

  In other words, the pair of upper and lower support rods 53 and 54 on the working unit body side are provided in a posture facing the working unit body side. The upper support rod 53 is erected upward from the connecting member 28 constituting the work unit body frame 30 so as to be directed upward from the work unit body body and slidably supports the upper end side of the seedling platform 17. It is built in. The lower support rod 54 is installed on the planting drive case 29 constituting the working unit body frame 30. The lower support rod 54 is configured by a support shaft of a seedling amount adjustment arm 17a supported by the working unit body frame 30 so as to be swingable up and down. The seedling collection amount adjusting arm 17a slides and adjusts the seedling placing stand 17 in the seedling vertical feed direction by swinging the seedling collection amount changing lever 77.

  In the communication pipe 24 constituting the second, third, fourth, and fifth powder supply parts K, of the pair of connection hooks 51 and 51 located on the other end side of the communication pipe 24, the rear from the communication pipe 24. The connecting hook 51 that protrudes in the direction is engaged with the upper support rod 53 from below, and of the pair of connecting hooks 50 and 50 located on one end side of the communication pipe 24, the connection hook 24 faces rearward. The connecting hook 50 to be projected is engaged with the lower support rod 54 from above.

  In the communication pipe 24 constituting the first and sixth powder supply parts K, the pair of connection hooks 50, 50 located on one end side of the communication pipe 24 protrude rearward from the communication pipe 24. The connecting hook 50 that becomes the upper side is engaged with the upper support rod 53 from below, and of the pair of connecting hooks 51, 51 located on the other end side of the communication pipe 24, it protrudes rearward from the communication pipe 24. The connecting hook 51 that is to be engaged is engaged with the lower support rod 54 from above.

  In the communication pipe 24 constituting any of the first to sixth powder supply parts K, the loop-shaped locking part 52 a provided on one end side of the locking pin 52 is connected to the connection parts 81 and 82 of the communication pipe 24. The working part machine body up-down pin-shaped locking part 52b provided on the other end side of the locking pin 52 is engaged with the pin hole provided in the upper support rod 53, The locking pin 52 is mounted across the communication pipe 24 and the support rod 53.

FIG. 9A is a front view showing a fixed state of the connection pipe 24 when the communication pipe 24 is connected to the transport pipe 27 by the connection portion 81 on one end side. FIG. 9B is a side view showing a fixed state of the connection pipe 24 when the communication pipe 24 is connected to the transport pipe 27 by the connection portion 81 on one end side. Reference numerals (51) and (82) shown in FIGS. 9 (a) and 9 (b) indicate that when the communication pipe 24 is connected to the transporter 27 by the connecting portion 82 on the other end side, the connecting pipe 24 is connected to the connecting portion on the one end side. In the case where the connecting portion 81 is positioned instead of the connecting portion 81 at the location where the connecting portion 81 is connected to the transport pipe 27 at 81, and the communication pipe 24 is connected to the transport tube 27 at the one end side connecting portion 81. It shows that the connecting hook 51 is engaged with the support body 53 instead of the connecting hook 50.
That is, the engagement of the connecting hooks 50 and 51 with the pair of upper and lower support rods 53 and 54 causes the communication pipe 24 to be positioned with respect to the support rods 53 and 54 in the direction orthogonal to the support rods 53 and 54, thereby connecting the communication pipes. The communication pipe 24 is fixed by positioning the communication pipe 24 with respect to the support rod 53 in the direction along the support rod 53 by the engagement of the lock pin 52 with respect to the support rod 24 and the support rod 53.

  As shown in FIGS. 5, 6, and 8, a clogging sensor S is provided in the upper end portion of the supply unit 19 a of the groove generator 19. The clogging sensor S includes a pair of electrodes that are spaced apart from each other, and the fertilizer adheres to the pair of electrodes, and the state of conduction between the two electrodes is improved and the resistance value is reduced. Detection is activated. When the clogging sensor S is activated, the clogging sensor S activates an alarm device (not shown) provided in the operation unit 14 by outputting detection information to the control means. The clogging sensor S is linked to the control means by an electric wire 56. The electric wire 56 is disposed so as to pass through an opening 19c formed by a notch provided in an upper portion of the supply portion 19a in the groove generator 19.

Region 25B located on the side of the inserted distal portion 25 A clogging sensor S to the feed portion 19a of Sakumizo 19 of the cylinder 25 it is is formed to best longer. Specifically, the lower end T1 in the region 25B located on the side where the clogging sensor S is located with respect to the axial core 25a of the cylindrical body 25 is shaped with respect to the axial core 25a of the cylindrical body 25. The tapered shape is formed so as to be positioned at an arrangement height lower than the lower end T2 in the region 25C located on the side opposite to the side where the clogging sensor S is located. That is, the notch is provided in the tip 25A, and the tip 25A has a stepped shape. The notch is formed by cutting in a direction along the axis 25a of the cylinder 25 and cutting in a direction orthogonal to the axis 25a of the cylinder 25.

  Accordingly, the fertilizer from the communication pipe 24 flows down to the side away from the clogging sensor S due to the tapered shape of the distal end portion 25A of the cylindrical body 25 and flows down into the supply section 19a of the grooving device 19 so that the fertilizer is clogged. It is configured to flow to the position side and not leak from the opening 19c to the outside of the supply unit 19a.

  FIG. 5 is a longitudinal sectional side view showing a portion where the groove forming device 19 and the communication pipe 24 communicate with each other in each of the six groove forming devices 19. FIG. 6 is a front view showing a portion where each of the six groove forming devices 19 communicates with the groove forming device 19 and the communication pipe 24. FIG. 8 is a cross-sectional plan view showing a portion where each of the six groove forming devices 19 communicates with the groove forming device 19 and the communication pipe 24. As shown in these figures, the first and second air vent passages 61 and 62 are communicated with the cylindrical body 25, and a part of the transport air from the blower 22 is the lower end of the supply section 19 a of the groove generator 19. Can be removed by the first and second air vents 61 and 62, and flows into the supply part 19a of the grooving device 19 from the cylindrical body 25 and into the fertilizer supply groove from the supply part 19a. Further, it is configured such that the amount of conveyance air blown to the farm scene can be made smaller than the amount of conveyance air supplied by the blower 22.

  The first and second air venting air passages 61 and 62 are formed by a cover 63 provided above the groove producing device 19.

  That is, the cover 63 communicates with the upper end portion of the supply portion 19a of the groove generator 19 so as to cover the outer peripheral side of the upper end portion of the supply portion 19a of the groove generator 19 with a predetermined interval from the upper end portion. The outer peripheral side of the upper end portion of the cylindrical body 25 to be covered with a predetermined interval with respect to the upper end portion is further provided on the outer peripheral side of the upper end portion of the supply portion 19a of the groove producing device 19, A downward opening 66 that opens the inside of the cover 63 downward is formed at a position that is positioned lower than the exhaust port 64a provided in the upper part. Specifically, the cover 63 extends downward from the upper portion 25U of the cylindrical body 25, the extension end 63b is located outside the upper end portion of the supply portion 19a of the groove generator 19, and the extension end 63b. And is formed in a container shape so as to open downward. The cover 63 is made of a rubber material as an example of an elastic material. The cover 63 and the cylinder 25 are integrally formed of a rubber material.

The groove generator 19 moves up and down with respect to the working unit body frame 30 together with the grounding float 15 between the supply portion 19a of the groove generator 19 and the distal end portion 25A of the cylindrical body 25 inserted into the upper end portion of the supply portion 19a. There is a gap C that allows this. An exhaust cylinder 64 provided with an exhaust port 64a on the upper end of the cover 63 is provided on the upper and front sides of the fuselage, and the conveying air flowing out from the terminal opening of the cylinder 25 flows upward along the inner wall surface of the supply unit 19a. Then, the conveying air that flows out from the gap C between the supply unit 19a and the cylinder 25 to the outside of the supply unit 19a and further flows upward outside the supply unit 19a flows into the exhaust cylinder unit 64 and covers from the exhaust port 64a. A first air vent 61 is formed so as to escape to the outside of 63.

  The conveying air coming out from the terminal opening of the cylinder 25 flows upward along the inner wall surface of the supply part 19a, flows out of the supply part 19a from the gap C between the supply part 19a and the cylinder 25, and supplies to the supply part 19a. The second air vent air passage 62 is formed so that the conveying air that has flowed downward along the inner surface of the cover 63 from the outside of the cover 63 flows out from the downward opening 66 of the cover 63 to the outside of the cover 63.

As shown in FIG. 3, the exhaust port 64 a of the first air vent air passage 61 is arranged to be located at a lower arrangement height than the upper end 28 a of the connecting member 28 constituting the working unit body frame 30. Even if the fertilizer powder comes out from the first air vent air passage 61 together with the conveying air, the situation where the fertilizer powder that comes out from the first air vent air passage 61 falls on the work unit body frame 30 does not occur.

  As shown in FIGS. 3 and 6, the exhaust port 64 a of the first air vent 61 is arranged in front of the cylinder 25 so as to overlap with the cylinder 25 in the longitudinal direction of the machine body, and the seedling that performs the seedling planting exercise Even when the mud jumps up by the planting mechanism 18, the communication pipe 24 and the cylindrical body 25 exhibit a shielding function, and the jumped mud does not adhere to the exhaust port 64 a.

  A lid 70 is provided at the exhaust port 64 a of the first air vent 61. The lid 70 is pivotally supported by a support portion 71 provided integrally with the cover 63. The lid 70 swings up and down around the axis P and opens and closes, and the wind pressure of the conveying wind exiting from the exhaust port 64a. Is received by the wind pressure, and when the opening operation is further released, it is supported to be closed by a lowering operation due to gravity acting on the lid 70.

A stopper 72 for the lid 70 is provided integrally with the support portion 71. 5 the cover 70 shown by a two-dot chain line shows the lid 70 in all opened posture. As shown in FIGS. 5 and 7, the lid body 70 is lifted and swung to increase the opening angle, and the base end side portion of the lid body 70 comes into contact with the stopper 72 and the rocking restriction by the stopper 72 is restricted. When it is in the received state, it becomes a fully open posture which is the limit of opening. This fully open posture is set to an open posture that does not exceed the top dead center so that gravity acts as an external force in the closing direction. Therefore, even when the lid 70 is opened to the fully opened posture, when the opening operation is released, the lid 70 is surely lowered by the gravity closing operation and returns to the closed posture.

  As shown in FIGS. 6 and 7, a protrusion 73 is provided on the inner surface side of the left and right lateral side wall portions 63 a of the cover 63. The protrusion 73 is configured by a protrusion in the direction along the supply portion 19 a of the groove generator 19 and the cylindrical body 25. The protrusion 73 is integrally formed with the cover 63.

  When the lateral wall portion 63a of the cover 63 is elastically deformed inward due to the muddy water being pressed, the protrusion 73 comes into contact with the cylindrical body 25 and the supply portion 19a and further into the lateral wall portion 63a. Is a stopper that restricts elastic deformation of the first and second air vent air passages 61a by securing a gap between the side wall portion 63a and the cylindrical body 25 and the supply portion 19a, and by elastic deformation of the side wall portion 63a. It suppresses 62 becoming narrow.

[Another embodiment]
FIG. 12: is a front view which shows the granular material supply part K in a paddy field working machine provided with 2nd Embodiment. In the paddy field machine provided with 2nd Embodiment, it has comprised so that the fertilization operation | work with respect to the seedling planting operation | work of a 5-row planting and the planting seedling of a 5-row may be performed.

  The five granular material supply parts K in the paddy field working machine provided with the second embodiment have the same configuration as the communication pipe 24 constituting the six granular material supply parts K in the paddy field working machine provided with the first embodiment. The communication pipe 24 is provided.

  In the paddy field machine provided with 2nd Embodiment, the communication pipe 24 which comprises the 1st, 2nd, 4th granular material supply part K (1st, 2nd, 4th granular material supply part K) from the left end is 1st. It attaches with the 3rd attachment attitude | position same as the communication pipe 24 which comprises the 1st granular material supply part K in 1 embodiment.

  The communication pipe 24 constituting the first granular material supply unit K bypasses the marker operating device 79 on the rear side of the working unit and passes the back side of the seedling platform 17 in the vertical direction of the working unit machine body and the groove 27 and the groove. The container 19 is communicated. The marker operating device 79 operates the marker locking hook 79a to switch the left marker 42 between the lowered use posture and the raised storage posture. The communication pipe 24 constituting the second granular material supply unit K bypasses the seedling horizontal feed shaft 41 and the connecting member 28 to the working unit rear side and conveys the back side of the seedling mounting table 17 through the working unit machine body in the vertical direction. The tube 27 and the groover 19 are communicated. The communication pipe 24 composing the fourth granular material supply unit K bypasses the seedling vertical feed shaft 46 and the lever guide 75 to the working unit body rear side, and passes the back side of the seedling placing table 17 in the vertical direction of the working unit body. The conveyance tube 27 and the groove generator 19 are communicated.

  The communication pipe 24 constituting the third granular material supply unit K (third granular material supply unit K) from the left end constitutes the second, third, and fifth granular material supply units K in the first embodiment. It is attached in the same fourth attachment posture as the communication pipe 24. The communication pipe 24 constituting the third granular material supply unit K bypasses the seedling horizontal feed shaft 41 and the connecting member 28 to the working unit rear side, and conveys the back side of the seedling mounting table 17 through the working unit machine body in the vertical direction. The tube 27 and the groover 19 are communicated.

  The communication pipe 24 constituting the fifth granular material supply part K (fifth granular material supply part K) from the left end is connected to the communication pipe 24 constituting the sixth granular material supply part K in the first embodiment. They are mounted in the same second mounting posture. The communication pipe 24 constituting the fifth granular material supply unit K bypasses the marker operating device 78 to the rear side of the working unit and passes the back side of the seedling platform 17 in the vertical direction of the working unit body and the conveying pipe 27 and the groove. The container 19 is communicated. The marker operating device 78 operates the marker locking hook 78a to switch the right marker 42 between the lowered use posture and the raised storage posture.

  FIG. 13: is a front view which shows the granular material supply part K in a paddy field working machine provided with 3rd Embodiment. In the paddy field machine provided with 3rd Embodiment, it is comprised so that the fertilization operation | work with respect to the seedling planting operation | work of 8 rows planting and the 8 planting seedlings may be performed.

  The eight granular material supply units K in the paddy field working machine including the third embodiment have the same configuration as the communication pipe 24 that constitutes the six granular material supply units K in the paddy field working machine including the first embodiment. The communication pipe 24 is provided.

  In the paddy field machine provided with 3rd Embodiment, the communication pipe 24 which comprises the 1st, 5th granular material supply part K (1st, 5th granular material supply part K) from the left end is 1st Embodiment. Are attached in the same first attachment posture as the communication pipe 24 constituting the fourth granular material supply unit K.

The communication pipe 24 constituting the first granular material supply part K bypasses the marker support part 79b on the rear side of the working part and passes the back side of the seedling platform 17 in the vertical direction of the working part machine body and the groove 27. The container 19 is communicated. Marker support portion 79b swings vertically movably supporting the M a Ca 42 on the left to the elevated storage position and a lowered use position. The communication pipe 24 constituting the fifth granular material supply unit K bypasses the lever guide 75 to the lateral side, and bypasses the seedling vertical feed shaft 46 and the connecting member 28 to the working unit rear side, so that the seedling placing table 17 is provided. The conveying pipe 27 and the groove forming device 19 are communicated with each other through the working unit body in the vertical direction.

The communication pipe 24 constituting the third, fourth and eighth powder supply parts K (third, fourth and eighth powder supply parts K) from the left end is the second, third and fourth powders in the first embodiment. It is attached with the same 4th attachment posture as the communication pipe 24 which comprises the granule supply part K. FIG. The communication pipe 24 constituting the third and fourth powder body supply unit K bypasses the seedling horizontal feed shaft 41 and the connecting member 28 to the working unit rear side, and passes the back side of the seedling placing table 17 in the vertical direction of the working unit body. Thus, the conveying pipe 27 and the groove producing device 19 are communicated with each other. The communication pipe 24 constituting the eighth granular material supply part K bypasses the marker support part 78b on the rear side of the working part, passes through the back side of the seedling stage 17 in the vertical direction of the working part body, and the conveying pipe 27 and the groove. The container 19 is communicated. Marker support portion 78b swings vertically movably supported on the raised stored position to the right of M a mosquito 42 and a lowered use position.

  The communication pipe 24 constituting the second and sixth powder supply parts K (second and sixth powder supply parts K) from the left end constitutes the first powder supply part K in the first embodiment. It is attached in the same third attachment posture as the communication pipe 24. The communication pipe 24 constituting the second granular material supply unit K bypasses the marker operating device 79 and the connecting member 28 to the rear side of the working unit, and passes through the back side of the seedling platform 17 in the vertical direction of the working unit body. 27 and the groove generator 19 are connected. The marker operating device 79 switches the left marker 42 between the lowered use posture and the raised storage posture. The communication pipe 24 constituting the sixth granular material supply unit K bypasses the seedling vertical feed shaft 46 and the connecting member 28 to the working unit rear side, and conveys the back side of the seedling placing table 17 through the working unit machine body in the vertical direction. The tube 27 and the groover 19 are communicated.

  The communication pipe 24 constituting the seventh granular material supply part K (seventh granular material supply part K) from the left end is connected to the communication pipe 24 constituting the sixth granular material supply part K in the first embodiment. They are mounted in the same second mounting posture. The communication pipe 24 constituting the seventh granular material supply unit K bypasses the marker operating device 78 and the connecting member 28 to the rear side of the working unit, and passes through the back side of the seedling mount 17 in the vertical direction of the working unit body. 27 and the groove generator 19 are connected. The marker operating device 78 switches the right marker 42 between the lowered use posture and the raised storage posture.

[Another Example]
(1) In the foregoing embodiment, an example of attaching interchanged up and down direction and in the longitudinal direction of the communicating pipe 24 by the powder or granular material feeding portion K, replacement of the front and rear direction without performing replacement of the upper and lower directions It is also possible to adopt a configuration in which only the up-and-down replacement is performed without performing the front-and-rear replacement.

(2) In the above-described embodiment, the example in which the communication pipe 24 is replaced in the front-and-rear direction and installed in two different front-and-back postures by changing the direction at 180 degrees has been shown. It may be implemented by adopting a configuration in which three types of front-rear changes are replaced.

(3) Although the example which employ | adopted the protrusion 95 as the 1st-4th parameter | index 91-94 was shown in the above-mentioned Example, you may employ | adopt and implement various means, such as a character and a pattern.

(4) Although the example which employ | adopted the communication pipe 24 formed with the synthetic resin material was shown in the above-mentioned Example, you may implement by employ | adopting a metal communication pipe.

(4) In the above-described embodiment, the connection pipe 24 is fixed by the connection hooks 50 and 51 and the locking pin 52. However, the connection pipe 24 is fixed by various connection means such as a lashing band and a connection bolt. The configuration may be implemented.

(5) In the above-described embodiment, an example in which fertilization is performed by the granular material supply device 5 has been shown.

(6) In the above-described embodiment, the example in which the communication pipe 24 and the groove producing device 19 are communicated with each other by the cylindrical body 25 has been shown. Good.

  The present invention can be used not only for riding paddy field work machines but also for walking type paddy field work machines.

4 working unit 19 Sakumizoki 20 feeding shi mechanism 24 communicating pipe 25D Sakumizo-side connecting portion 27 the transport pipe 50, 51 connecting the hook 52 engaging pin 53, 54 support rod 81, 82 connecting portion 83 bent portions 91 and 92 , 93, 94 Index A Powder and granular material supply section K Powder and granular material supply section

Claims (3)

A plurality of groovers that form grooves for supplying powder particles to the farm scene at a plurality of locations in the transverse direction of the machine body, and a plurality of groovers that extend from the powder material feeding unit to each of a plurality of conveying pipes. A paddy field work machine provided with a working unit having a plurality of vertically communicating pipes to be communicated,
The plurality of communication pipes are formed so as to have a bent part between both end parts and to have the same bent part form,
A connecting portion for connecting each of the plurality of communication pipes to the transport pipe side of the plurality of communication pipes so as to be applicable to any communication of the plurality of transport pipes and the plurality of groove forming devices. And the same specification for connection of the connecting part for connecting to the groover side,
When the plurality of communication pipes are different from each other in the transport pipe and the groove producing device to be communicated with each other, they are configured so that they are attached by switching up and down.
The paddy field work machine provided with the indicator which displays the attachment posture in the case of applying to the plurality of communicating pipes for communication with each of the plurality of conveyance pipes and the plurality of groove forming devices. The paddy field work machine according to claim 1 , wherein the communication pipe is configured to be attached with its front-rear direction switched when the conveying pipe to be communicated and the groove producing device are different. In the communication pipe, a connecting hook that can be freely engaged with and disengaged from a lateral support rod on the aircraft side is provided.
The paddy field machine according to claim 1 or 2 , wherein a locking pin is provided to be mounted across the communication pipe and the support rod so as to position the communication pipe in the lateral direction of the machine body with respect to the support rod.

Images