JP2014060961A - Riding type rice planter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a riding type rice planter which has a frame laterally extending at a rear part of a driving seat so that seedlings are easily supplied to a seedling planting device.SOLUTION: A fertilize hopper 21 of a fertilize device is arranged at a rear part of a driving seat 3, and a lateral frame F is arranged above the fertilize hopper 21 so as to cover the fertilize hopper 21. A rid 21A of the fertilize hopper 21 is openable/closable by swinging around an open/close axis X as a center. The lateral frame F is swingably supported at the rear side so that its front part can be lifted by swinging around a swinging axis P as a center. With this swinging, the lateral frame F can be separated from an open/close trajectory of the rid 21A.

Description

  The present invention relates to a riding type rice transplanter, and more particularly to an improvement of a riding type rice transplanter provided with a frame extending in a lateral width direction of a traveling machine body at a rear position of a driver's seat.

  As a riding type rice transplanter configured as described above, Patent Document 1 discloses a frame for a preliminary seedling placement in which a traveling seat is provided with a driver's seat and extends in a lateral direction of the traveling aircraft at a position behind the driver's seat. A configuration with a seedling) is described.

  In this patent document 1, the frame is configured to be switchable between a horizontal posture and an inclined posture that lowers the rear end side, and in the inclined posture, replenishment of seedlings to the seedling mount of the seedling planting device (planting unit in the literature) is performed. It is configured so that it can be easily performed.

JP-A 06-46624

  In the riding type rice transplanter equipped with a seedling planting device at the rear end position of the traveling machine body, it is necessary to replenish seedlings at the time of work, and replenishment of seedlings is easy as described in Patent Document 1. It has also been considered that a seedling stand for this purpose is placed behind the driver's seat.

  In the configuration described in Patent Document 1, seedling replenishment is easily performed. However, since a seedling stand is provided with a hydraulic cylinder, the number of parts increases, the structure becomes complicated, and the cost increases. There is room for improvement.

  In a riding type rice transplanter equipped with a spare seedling platform in the front position of the traveling machine body, when the seedling is replenished from the preliminary seedling platform to the seedling planting device, the operator of the driver seat can transfer the seedling from the spare seedling platform. Is taken out, moved to the rear of the traveling machine body and slid downward from the upper end of the seedling stage. In addition, the mat-like seedling used in the seedling planting apparatus is soft and heavy and contains moisture, so that it is not easy to handle, and when the worker works toward the rear of the traveling machine body, There is a demand for a structure capable of temporarily placing a handrail, a handrail for maintaining the posture of the worker, and the like.

  For this reason, it is effective to provide a frame extending in the lateral direction at the rear position of the driver seat, but this frame does not need to be provided at a high position as described in Patent Document 1. In particular, in the case where the hopper for storing fertilizer of the fertilizer application device is disposed at the rear position of the driver's seat, it is necessary to configure so as not to prevent the supply of the fertilizer to the hopper.

  An object of the present invention is to rationally configure a riding type rice transplanter that can easily replenish seedlings to a seedling planting device by including a frame extending laterally at a rear position of a driver seat.

  A feature of the present invention is that a seedling planting device for transplanting seedlings in a farm field is provided at the rear end position of the traveling machine body, a fertilizer feeding device for supplying fertilizer to the farm field is provided in the traveling machine body, and the fertilizer is provided on a driver seat. A hopper provided at the rear position and a feeding mechanism for feeding the fertilizer stored in the hopper to the field scene, and a horizontal frame extending in the horizontal width direction of the traveling machine body at a position above the hopper, The horizontal frame is supported in a retractable manner at a position deviating from the opening / closing locus of the lid at the top of the hopper.

According to this configuration, when the worker replenishes the seedling planting device, the spare seedling can be temporarily placed on the upper surface of the horizontal frame, thereby reducing the burden on the worker. Further, when the worker is in a posture toward the rear of the traveling machine body, the worker's posture is stabilized by gripping the horizontal frame or bringing the body into contact with the horizontal frame. In particular, when opening and closing the lid on the top of the hopper, it is easy to supply fertilizer to the hopper by retracting the horizontal frame away from the opening and closing locus of the lid, and maintenance of the fertilizer is also easy. To do. Further, in this configuration, the horizontal frame can be arranged at a position close to the upper surface of the hopper, and the horizontal frame does not have to be arranged at a high position, and the enlargement of the horizontal frame can be suppressed.
Therefore, a riding type rice transplanter that makes it easy to replenish seedlings to the seedling planting device and has good workability by rational arrangement of the frame extending in the lateral direction at the rear position of the driver's seat has been configured.

  In the present invention, the horizontal frame may include a mounting surface on which a preliminary seedling to be supplied to the seedling mounting base of the seedling planting device is mounted.

  According to this, by placing the spare seedling on the placement surface of the horizontal frame, even when the operator releases the spare seedling, it is possible to stably support the spare seedling, Reduce the labor burden and make it easier to replenish seedlings.

  According to the present invention, the horizontal frame is supported in a swingable manner in such a manner that the front side of the horizontal frame is lifted upward by swinging around the swing shaft core in the horizontal posture at the rear side position of the mounting surface. May be.

  According to this, since the horizontal frame can be set to a posture in which the front side is lifted around the pivot axis of the horizontal posture at the rear side position of the mounting surface, the direction of the driver seat is greatly opened in the space above the hopper. It facilitates the supply of fertilizer to the hopper and facilitates the maintenance of the fertilizer.

It is a side view which shows the whole rice transplanter. It is a top view which shows the whole rice transplanter. It is a front view which shows the positional relationship of a fertilizer hopper and a horizontal frame. It is a side view which shows a feeding mechanism and a switching lever. It is sectional drawing which shows the internal structure of a feeding mechanism. It is a side view which shows arrangement | positioning of a horizontal frame. It is a perspective view which shows the plate part etc. of a horizontal frame.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
〔overall structure〕
As shown in FIGS. 1 and 2, a driving seat 3 is arranged in the center of a traveling machine body A having a pair of left and right front wheels 1 and a pair of left and right rear wheels 2, and a link mechanism is provided at the rear end of the traveling machine body A. A riding type rice transplanter is configured by connecting the seedling planting device B through L so as to be movable up and down.

  This riding type rice transplanter includes a reserve seedling placement unit C on both sides of the front position of the traveling machine body A, a fertilizer application device D that supplies fertilizer to the field, and a rear part of the traveling machine body A. At the position, a lateral frame F extending in the lateral direction of the traveling machine body A is provided.

  An engine E is housed in a bonnet 4 at the front of the traveling machine body A, and a transmission case 5 to which power from the engine E is transmitted is provided below the engine E. A traveling drive system that transmits from the mission case 5 to the left and right front wheels 1 and the left and right rear wheels 2 is provided below the traveling machine body A, and a driving force synchronized with the traveling speed of the traveling machine body A is supplied to the external output shaft 6. Is provided with a work transmission system for transmitting to the seedling planting apparatus B.

  A steering wheel 7 for steering (steering) the left and right front wheels 1 is provided at a front position of the driver seat 3. A main transmission lever 8 is provided on the left side of the steering wheel 7. The elevating lever 9 is provided for elevating and lowering the seedling planting device B and intermittently connecting a planting clutch (not shown) built in the mission case 5. A meter panel 10 is provided in the vicinity of the steering wheel 7 at a position in front of the driver seat 3.

  The link mechanism L includes a plurality of link members 11 and a hydraulic lift cylinder 12. The link mechanism L is operated by the expansion and contraction operation of the lift cylinder 12 to raise and lower the seedling planting device B. .

  The seedling planting apparatus B cuts out seedlings from a plurality of leveling floats 14, a seedling stage 15 on which the mat-like seedlings W are placed, and the mat-like seedlings W placed on the seedling stage 15 to be planted in a field scene. A plurality of rotary planting mechanisms 16 are provided.

  A step 18 is formed at a position below the driver's seat 3, and a boarding floor 19 that reaches the front end position of the traveling machine body A from the step 18 is formed on both the left and right sides of the bonnet 4. Further, a rear fender 20 is formed at the left and right positions of the driver seat 3 and above the rear wheel 2, and an auxiliary step 18 </ b> A is formed outside the step 18. Note that the step 18, the auxiliary step 18A, the boarding floor 19, and the rear fender 20 are firmly supported with respect to the body frame Af for the operator to board.

  The preliminary seedling placement unit C is configured to include a plurality of shelf-shaped preliminary seedling placement bases 42 on which mat-like seedlings are placed as preliminary seedlings with respect to the columnar frame 41 in the vertical orientation. Although the configuration is not described in detail, in this spare seedling placement unit C, two of the plurality of spare seedling placement stands 42 are removed, and the front end and the rear end of the spare seedling placement stand 42 fixed to the columnar frame 41 are provided. It is also possible to linearly arrange the three preliminary seedling platforms 42 in the front-rear direction. In addition, what is placed on the spare seedling stage 42 of the preliminary seedling placement unit C is referred to as a spare seedling. When placed on the spare seedling stage 42, the state where the spare seedling is accommodated in the nursery box Or, it is supported in a state where it is placed on a plate-shaped seedling rake plate.

[Fertilizer]
As shown in FIGS. 1 to 5, the fertilizer application device D is a transparent resin fertilizer hopper 21 disposed behind the driver's seat 3 and a feeding mechanism that feeds granular fertilizer stored in the fertilizer hopper 21 by a predetermined amount. 22, an electric blower 23 for sending the fed fertilizer by wind force, a fertilizer hose 24 for feeding fertilizer by wind force, and a groover 25 to which fertilizer is supplied from the fertilizer hose 24. The feeding mechanism 22, the fertilizer application hose 24, and the grooving device 25 are provided with a number equal to the number of seedling planting lines, and the grooving device 25 is provided in the leveling float 14 of the seedling planting device B.

  A supply duct 26 is arranged at the front position of the feeding mechanism 22 along the lateral width direction of the traveling machine body A, and a recovery duct 27 is provided at the rear position of the feeding mechanism 22 along the lateral width direction of the traveling machine body A. A switching lever 28 is provided on the side of the position feeding mechanism 22.

  The feeding mechanism 22 includes a feeding roll 22B that rotates integrally with the roll shaft 22A, and a plurality of recesses are formed on the outer periphery of the feeding roll 22B. The roll shaft 22A is driven and rotated in synchronization with the traveling speed of the traveling machine body A, and the fertilizer of the fertilizer hopper 21 rotates in a state where the fertilizer enters the concave portion on the outer periphery of the feeding roll 22B. Send the fertilizer down.

  The lower space of the feeding mechanism 22 communicates with the fertilizer hose 24 and is connected to the supply duct 26. Thus, when the fertilizer is fed, the air from the electric blower 23 is supplied to the lower space of the feeding mechanism 22 from the supply duct 26 so that the fertilizer is sent into the fertilizer hose 24 by the wind pressure of the air, and the grooving device Reach 25.

  At the lower part of the fertilizer hopper 21, a discharge shutter 21 </ b> C capable of pouring the fertilizer stored in the fertilizer hopper 21 into the collection duct 27 is provided. The switching lever 28 is configured to be switchable between a supply position Su and a discharge position Ex around the support shaft portion 28A, and an urging force is applied so as to hold the switch lever 28 at the supply position Su and the discharge position Ex. A toggle spring 29 is provided.

  The switching lever 28 and the discharge shutter 21C are linked to each other, and the discharge shutter 21C is set to the closed posture shown by the solid line in FIG. 5 when operated to the supply position Su, and is discharged by operating the discharge position Ex. The shutter 21 </ b> C is set to a discharge posture indicated by a two-dot chain line in FIG. 5. Further, the fertilizer application D is provided with a switching shutter (not shown) for sending the air of the electric blower 23 to the recovery duct, and this switching shutter is closed by operating the switching lever 28 to the supply position Su. By maintaining and operating to the discharge position Ex, it switches to the open posture, and this open posture is maintained.

  Accordingly, when the switching lever 28 is operated to the supply position Su, the discharge shutter 21C and the switching shutter (not shown) are maintained and set in the closed posture. Thereby, the operation | movement which supplies the air from the electric blower 23 to the supply duct 26, and sends the fertilizer delivered from the delivery mechanism 22 to the fertilization hose 24 is implement | achieved.

  On the contrary, when the switching lever 28 is operated to the discharge position Ex, the discharge shutter 21C is opened and the switch shutter (not shown) is opened. Thereby, the fertilizer of the fertilizer hopper 21 is sent out to the recovery duct 27, and the fertilizer is sent to the recovery duct 27 by the wind pressure of the air supplied from the electric blower 23 to the recovery duct 27 and recovered from the end of the recovery duct 27. It becomes possible. Note that an opening (not shown) for feeding the collected fertilizer is formed at the end of the collection duct 27, and the fertilizer can be collected in a collection bag or the like from this opening.

  With this configuration, when the seedling planting operation is performed, a plurality of leveling floats 14 level the muddy surface of the seedling planting site as the traveling machine body A travels, while the seedling stage 15 is moved in the left-right direction by the driving force transmitted from the external output shaft 6. When the reciprocating operation is performed, a planting operation is performed in which the planting mechanism 16 cuts out the seedlings by a predetermined amount from the lower end of the mat-like seedling W of the seedling stage 15 and plants the seedlings on the field.

  Further, by operating the fertilizer D by operating the switching lever 28 to the supply position Su during the planting operation, the granular fertilizer stored in the fertilizer hopper 21 is fed out by the feeding mechanism 22 and the wind pressure of the electric blower 23 is Is sent from the fertilizer hose 24 to the grooving device 25. Then, fertilizer is applied in a form in which the fertilizer is fed into the fertilizer groove formed near the lateral side of the planted seedlings of each row by the grooving device 25.

  In particular, the fertilizer applicator D includes a lever sensor LS (see FIG. 4) that detects that the switching lever 28 is set at the discharge position Ex. When the lever sensor LS is in a detection state, the operation is performed. An alarm device for turning on an alarm lamp 10A of the meter panel 10 in front of the seat 3 is provided.

  In addition to the configuration for lighting the alarm lamp 10A as the alarm device, an alarm for generating an alarm sound may be activated, or the alarm lamp 10A and the alarm may be activated simultaneously. In addition, whether the alarm lamp 10A is lit or the alarm is activated, for example, the lever sensor LS is in a state where the planting clutch is engaged and operated, or the switches for operating the fertilizer application D are operated. You may comprise so that a detection signal may be acquired and an alarm action may be performed if necessary.

(Horizontal frame)
As shown in FIGS. 1 to 3, 6, and 7, the horizontal frame F connects the left and right vertical frame portions 31 whose lower ends are supported by the traveling machine body A and the left and right vertical frame portions 31 at a rear position. The reinforcing frame 32 and a horizontally long plate portion 33 supported by the upper ends of the left and right vertical frame portions 31 are configured.

  The plate portion 33 of the horizontal frame F is disposed at a position covering the upper portion of the fertilizer hopper 21 and has a flat shape extending in the width direction of the vehicle body A. The outer edge position in the horizontal direction is the same as the outer edge position of the rear fender 20. The dimensions are approximately the same. In addition, a placement surface 33 </ b> S on which a preliminary seedling can be placed is formed on the upper surface of the plate portion 33. Thereby, it is possible to temporarily place the preliminary seedling on the placement surface 33S of the plate portion 33 and to supply the preliminary seedling so as to slide from the upper surface of the plate portion 33 to the seedling mounting table 15. .

  Further, the upper opening of the fertilizer hopper 21 is provided with a transparent resin lid 21 </ b> A that can be swingably opened and closed around the opening / closing axis X by a rear hinge 21 </ b> B. The plate portion 33 is moved upward with the front portion centered about the swing axis P in the lateral orientation on the rear end side so that the plate portion 33 of the horizontal frame F is disengaged from the opening / closing locus S of the swing end of the lid 21A. It is configured to be able to swing in the form of lifting up.

  In this fertilizer applicator D, the feeding mechanism 22 is connected to the lower end of one fertilizer hopper 21. Two feeding rolls 22B are built in the case of the feeding mechanism 22, and each feeding roll is provided. The fertilizer fed out at 22B is configured to be sent out to different fertilizer hoses 24. Accordingly, two fertilizers are stored in one fertilizer hopper 21.

  The vertical frame portion 31 has a structure in which a front strut 31A, a rear strut 31B, and an upper coupling body 31C are integrally formed by forming a pipe material in an inverted U shape. The lower end is connected to the rear end portion of the auxiliary step 18 </ b> A, and the lower end of the rear column 31 </ b> B is connected to the lower surface side of the rear fender 20.

  The reinforcing frame 32 is disposed in the rear side of the fertilizer hopper 21 in a horizontally long posture that connects the rear columns 31B.

  The plate portion 33 includes an end frame 33A made of a square pipe material disposed at both left and right end positions, a frame 33B formed into a horizontally long loop connected to the end frame 33A, and a front end position of the frame 33B. And a plurality of strength frames 33D that connect the rear end position, and a frame 33B and a top plate 33C made of a transparent resin stretched on the upper surface of the strength frame 33D. The top plate 33C may be made of a metal plate.

  An upper bracket 35 that protrudes downward is fixed to the rear part of the lower surface of the left and right end frames 33A, and a lower bracket 36 that protrudes upward is fixed to the upper coupling body 31C of the vertical frame portion 31, and is lateral to these. A hinge is configured by providing a swing support shaft 37 penetrating in the direction on the same axis as the swing shaft core P.

  In addition, a holder 38 having a pair of arms 38A made of a spring plate projecting downward is provided at the front part of the lower surface of the left and right end frame 33A. In the holder 38, when the plate portion 33 is in the mounting posture shown by the solid line in FIG. 6, the plate portion 33 is mounted by the pair of arms 38A elastically sandwiching the upper coupling body 31C of the vertical frame portion 31. Maintain the posture. Then, when the operation of lifting the front end portion of the plate portion 33 is performed, the pair of arms 38A of the holder 38 is separated from the upper coupling body 31C and swings to the retracted posture shown by a two-dot chain line in FIG. Allow movement.

  Therefore, when the fertilizer is supplied to the fertilizer hopper 21, the holder 38 is separated from the upper coupling body 31C by the operation of artificially lifting the front end position of the plate portion 33, and the plate portion 33 is swung. As a result, the plate portion 33 is disengaged from the opening / closing locus S of the swing end of the lid body 21A of the fertilizer hopper 21, and the lid body 21A is largely opened to thereby replenish fertilizer.

[Operation / Effect of Embodiment]
As described above, when supplementary seedlings are replenished to the seedling stage 15 of the seedling planting apparatus B during the operation, the operator (driver) takes out the preliminary seedlings from the preliminary seedling placement unit C at the front, and reserves them. The seedling can be temporarily placed on the upper surface of the top plate 33C of the horizontal frame F at the rear position of the traveling machine body A. In addition, when temporarily placed, the posture of the spare seedling is stabilized, and by moving a little from the upper surface of the horizontal frame F, it is possible to supply the spare seedling to the seedling placing stand 15. .

  At the time of work, when the worker holds the vertical frame portion 31 of the horizontal frame F so that the posture can be stabilized, the plate portion of the horizontal frame F can be used when the worker turns back behind the driver seat 3. It is possible to work in a state where the posture is stabilized by grasping the front end portion of 33 or bringing the body into contact with the front end portion.

  In a state in which the traveling is stopped, a spare seedling may be replenished to the seedling mount 15 with an operator standing on the upper surface of the rear fender 20. Even when supplementary seedlings are replenished in such a work mode, the horizontal frame F is formed over the entire width of the upper portion of the rear fender 20, so that the operator can contact the horizontal frame F with the body, It is possible to stabilize the posture by gripping the end portion of the F plate portion 33.

  In the configuration without the horizontal frame F, when supplying the seedling to the seedling stage 15, the spare seedling is accidentally brought into contact with the upper surface of the fertilizer hopper 21 to break the lid 21A of the fertilizer hopper 21 or the fertilizer hopper. Although it is conceivable that the fertilizer hopper 21 is provided, the fertilizer hopper 21 can be protected.

  When the plate portion 33 of the horizontal frame F is in the placement posture, the rainwater is disposed even when working in an environment where it rains because the fertilizer hopper 21 is disposed close to and above the lid 21A. The inconvenience of falling on the fertilizer hopper 21 is eliminated, and fertilization using the fertilizer in a dry state is realized without moistening the fertilizer.

  In particular, when supplying fertilizer to the fertilizer hopper 21, the front side of the plate portion 33 of the horizontal frame F is lifted upward to switch to the retracted posture, so that the plate portion 33 can be changed from the opening / closing locus S of the swing end of the lid 21 </ b> A. Therefore, the lid 21A can be largely opened to replenish fertilizer, and the fertilizer application D can be easily maintained.

  In addition, a lever sensor LS for detecting that the switching lever 28 provided in the fertilizer application D is set at the discharge position Ex is provided, and the alarm lamp 10A is turned on based on the detection of the lever sensor LS. Therefore, it is possible to avoid the inconvenience of starting the operation with the switching lever 28 set at the discharge position Ex.

[Another embodiment]
The present invention may be configured as follows in addition to the embodiment described above.

(A) The plate portion 33 of the horizontal frame F is supported by a parallel link mechanism or the like so as to be vertically displaced. With this configuration, it is possible to displace the plate portion 33 up and down without changing the posture of the plate portion 33, and to retract the plate portion 33 to a position that deviates from the opening / closing locus S of the lid 21 </ b> A of the fertilizer hopper 21.

(B) The plate portion 33 of the horizontal frame F is detachably supported with respect to the vertical frame portion 31. Even in this configuration, the plate portion 33 can be retracted to a position deviating from the opening / closing posture of the lid 21A, the fertilizer can be easily supplied to the fertilizer hopper 21, and the fertilizer application D can be easily maintained.

(C) As the horizontal frame F, the plate portion 33 is provided with a grip that an operator can grip. Thereby, the operator can further stabilize the posture by gripping the grip.

(D) As an opening / closing structure of the lid 21A of the fertilizer hopper 21, for example, a pair of lids 21A is provided, and is supported to be openable / closable via hinges 21B at the front and rear positions or the left and right positions of the opening of the fertilizer hopper 21. Thus, the lid is configured to be a so-called double door type. In relation to this, the hinge 21B is arranged on either the left or right of the opening of the fertilizer hopper 21 even in the configuration including the single lid 21A. Furthermore, instead of simply swinging the lid body 21A with the hinge 21B, the lid body 21A is supported via a link mechanism so that the lid body 21A swings with movement in the front-rear direction, for example. Further, the lid 21 may be configured to be opened and closed by being detachable, or may be configured to be opened and closed by a slide operation.

  The present invention can be used for a rice transplanter in which a fertilizer hopper is disposed at a rear end portion of a traveling machine body.

3 Driver's seat 15 Seedling stand 21 Hopper (fertilizer hopper)
21A Lid 22 Feeding mechanism 33S Placement surface A Traveling machine body B Seedling planting device D Fertilizer application F Horizontal frame P Swing axis S Open / close locus

Claims (3)

A seedling planting device for transplanting seedlings in a farm field is provided at the rear end position of the traveling machine body, and a fertilizing device for supplying fertilizer to the farm field is provided in the traveling machine body,
The fertilizer application device is configured to include a hopper provided at a rear position of the driver's seat, and a feeding mechanism for sending the fertilizer stored in the hopper to a farm scene,
Riding type rice transplanter comprising a horizontal frame extending in the lateral width direction of the traveling machine body at a position above the hopper, the horizontal frame being supported in a retractable manner at a position deviating from the opening / closing locus of the lid on the top of the hopper .   The riding type rice transplanter of Claim 1 with which the said horizontal frame is equipped with the mounting surface which mounts the reserve seedling replenished to the seedling mounting stand of the said seedling planting apparatus.   The horizontal frame is swingably supported in a form in which the front side of the horizontal frame is lifted upward by swinging about a swing shaft core in a lateral orientation at a rear position of the placement surface. 2. Riding type rice transplanter according to item 2.

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