JP2006081552A - Walking type rice-planter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walking type rice-planter capable of housing preparatory seedlings on a preparatory seedling table so as to hardly cause dislocation and floating and not to block front vision from the rear side of the machine body. <P>SOLUTION: Slide stoppers 54, 55, 56 and 57 for suppressing dislocation of a seedling box B are set on the front, rear, right and left sides of a seedling loading surface 53 of a preparatory seedling table 50. A floating stopper 58 for suppressing floating of the seedling box B is set in front of the seedling loading surface 53. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is a walking type in which a seedling planting work section and a steering handle rod are provided at the rear part of the self-propelled machine body, and a spare seedling placement table for placing and storing mat-like spare seedlings is provided on the front side of the machine body of the seedling planting work section. Regarding rice transplanters.

Conventionally, for example, Patent Document 1 discloses a walking type rice transplanter.
The thing shown by patent document 1 is provided with the support frame 18 as a reserve seedling stand. The support frame 18 is mounted on the pair of front and rear horizontal rods 20 and 20 and the pair of left and right receiving rods 21 and 21 connected to the pair of left and right main frames 19 and 19 in a state where the preliminary seedling A is accommodated in the seedling box. The seedling box is supported with the front end in a low posture. Furthermore, the front part of the seedling box is received by the receiving part 20a. The upper end portions of the left and right main frames 19 protrude upward from the horizontal rod 20 and the receiving rod 21, and the seedling box can be received and supported from the lateral sides by the upper end portions of the main frame 19.

Japanese Utility Model Publication No. 5-76211 (paragraphs [0008], [0009], FIG. 1-4)

  When adopting the above-described conventional preliminary seedling platform, the preliminary seedling accommodated in the preliminary seedling platform is in a posture that rises backward and the rear end side of the preliminary seedling is positioned at a higher arrangement height than the front end side, When an operator looks forward from the rear of the fuselage, the rear end side of the spare seedling may become an obstacle, making it difficult to see the front.

  The object of the present invention is to make it possible to accommodate the spare seedlings so that they can be easily taken out from the rear of the aircraft, while making the spare seedlings less likely to obstruct forward vision, An object of the present invention is to provide a rice transplanter capable of accommodating spare seedlings in such a manner that floating does not easily occur.

In the first aspect of the present invention, the seedling planting work unit and the steering handle rod are provided at the rear part of the self-propelled machine body, and the preliminary seedling placing table for placing and storing the mat-like spare seedlings on the front side of the machine body of the seedling planting work part. In walking type rice transplanter with
A non-slip stopper is provided on the front and rear sides and both sides of the seedling placement surface of the preliminary seedling placement table to suppress the displacement of the placed seedling box,
A float stopper is provided on the front side of the seedling placement surface to prevent the placed seedling box from being lifted.

  In other words, even if the preliminary seedling is placed in the horizontal or near position and the preliminary seedling is accommodated in a horizontal or similar posture, the seedling box is Even if the position is likely to be displaced or lifted due to the influence of wind or vibration, and the displacement direction is either forward or backward, left or right, it is supported by the non-slip stopper located in that direction and will not be displaced. Furthermore, it will not be lifted up by being supported by the lift stopper. And when taking out the spare seedling from the rear side of the machine body and replenishing the seedling planting work part, the seedling box comes out of the floating stopper by lifting up the rear end side of the seedling box, and the non-slip stopper on the rear side The seedling box can be taken out from the preliminary seedling stage together with the seedling box and supplied to the seedling planting work section. , It becomes easier to lift the rear end side of the seedling box.

  Therefore, according to the first aspect of the present invention, when the preliminary seedling is taken out from the preliminary seedling stage and replenished to the seedling planting unit, the seedling box can be easily taken out from the preliminary seedling stage to the rear side of the machine body and replenished. However, it is possible to store spare seedlings so as not to cause seedling collapse due to shifting movement or floating of the preliminary seedlings. It is possible to prevent the seedling from becoming an obstacle for forward vision.

  According to the second aspect of the invention, in the configuration of the first aspect of the invention, a center pointer that is aligned with a traveling index of a farm scene is supported on the front end side of the preliminary seedling stage.

  In other words, since the center pointer that aligns with the running indicator of the farm scene is supported on the front end side of the reserve seedling stand, the center pointer that is shorter in length than the case where the center pointer is provided at the front end portion of the self-propelled machine body. Even if it is adopted, the center pointer is not easily hidden by the spare seedling stage or the spare seedlings accommodated in the preliminary seedling stage, making it easier to see from the rear side of the aircraft.

  Therefore, according to the second aspect of the present invention, the center pointer is easy to see from the rear side of the machine body, and the self-propelled machine body can be made to travel along the running index well, but it is advantageous to adopt a compact center pointer. Obtainable.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, four seedling planting mechanisms 11 arranged in the lateral direction of the aircraft are provided at the rear of the self-propelled aircraft including a pair of left and right driveable traveling wheels 1 and an engine 2 disposed at the front end of the aircraft. A seedling planting work unit 10 and a steering handle rod 8 provided with a pair of left and right grips 8a are provided, a spare seedling platform 50 is provided on the rear side of the engine 2 on the front side of the machine body of the seedling planting work unit 10, and A walking type rice transplanter is configured by supporting a center grounding float 3 and a side grounding float 4 that are arranged in the lateral direction of the body at the lower part of the body frame 20 of the traveling body.

  This rice transplanter performs planting work of rice seedlings. When the lifting cylinder 6 linked to the wheel driving case 5 that supports the left traveling wheel 1 and the right traveling wheel 1 is driven freely, the lifting cylinder 6 is operated. Swings the left and right wheel drive case 5 up and down with respect to the body frame 20 and moves the left and right traveling wheels 1 up and down with respect to the body frame 20 so that each grounded float 3, 4 The ascending / descending operation is performed between a descending working state in contact with the ground and an ascending non-working state in which the grounding floats 3 and 4 are separated from the ground. When the self-propelled aircraft is run in the descending working state, the grounding floats 3 and 4 slide on the mud surface of the field and level the ground. 12 is taken out from the mat-like seedlings placed on No. 12, and the block seedlings are planted after leveling by the grounded floats 3 and 4 on the field mud surface.

The self-propelled airframe and the like will be described in further detail. As shown in FIGS. 1 and 2, a mission case 21 located near the rear side of the engine 2 and an engine mounting frame extending forward from the lower portion of the mission case 21 22, a transmission case 23 extending rearward from the rear portion of the transmission case 21, a center drive case 24 having a lower portion connected to an extended end portion of the transmission case 23, and an upper and lower sides of the center drive case 24 The transmission case 25 (see FIG. 5) extending from both lateral sides of the intermediate portion in the direction toward the laterally outer sides of the machine body, and the upper end portion of each of the left and right transmission cases 25 is connected to the extended end portion. The vehicle body frame 20 is constituted by the side drive case 26 that is present, and the base portion of the wheel drive case 5 is placed sideways on the lateral sides of the transmission case 21. It is rotatably connected to about the axial center.
Each wheel drive case 5 is held by the elevating cylinder 6 at a predetermined mounting angle with respect to the mission case 21 to maintain the traveling wheel 1 at a predetermined mounting height.

  The steering handle rod 8 is made of a bent pipe material that is bent so that both end sides are front and rear and the middle part is sideways, and the lower end is connected to the lower case 24a of the center drive case 24 as shown in FIG. The pair of left and right handle frames 7 is supported at the upper end by an intermediate portion.

  As shown in FIGS. 3, 4, 5, 6, and the like, the seedling planting unit 10 is provided on both lateral sides of the lower case 24 a of the center drive case 24 and on the inward side of each side drive case 26. The seedling planting mechanism 11 provided on the lateral side, the sliding guide rail 14 supported by the support frame 13 extending from the pair of left and right side drive cases 26 toward the rear of the machine body, and the handle frames 7 The seedling platform 12 supported by a fixed mounting arm 15 (see FIG. 1) so as to be slidable in the lateral direction of the machine body is provided.

  As shown in FIGS. 5 and 6, each seedling planting mechanism 11 is connected to the seedling planting mechanism drive shaft 16 provided in the lower case 24 a of the center drive case 24 or the side drive case 26 so as to be integrally rotatable. The drive arm 17, the center drive case 24, or the side drive case 26 is supported by the center drive case 24 and the side drive case 26 via the swing link 18 that is swingably supported by the support arm portions 24 c and 26 b of the side drive case 26. As shown in FIG. 5, the seedling planting mechanism drive shaft 16 of the center drive case 24 is gear-linked to the input shaft 31 of the center drive case 24 via the planting clutch 30, and the transmission case 23 to the input shaft 31. And it is rotationally driven by the driving force transmitted through the planting clutch 30. As a result, the seedling planting mechanism 11 is driven to swing up and down by the seedling planting mechanism drive shaft 16 via the drive arm 17, and the tip of the planting claw 11 a (see FIG. 3) of the seedling planting mechanism 11 is rotated by a trajectory T ( The seedling planting movement is performed while reciprocating between the lower part of the seedling stage 12 and the field scene while drawing. As shown in FIG. 6, the seedling planting mechanism drive shaft 16 of each side drive case 26 is linked to the input shaft 33 of the side drive case 26 via a transmission chain 32, and the output shaft 34 of the center drive case 24. From the transmission shaft 25 of the transmission case 25, the input shaft 33, and the driving force transmitted through the transmission chain 32. Thereby, the seedling planting mechanism 11 is driven to swing up and down by the seedling planting mechanism drive shaft 16 via the drive arm 17, and the tip of the planting claw 11 a (see FIG. 4) of the seedling planting mechanism 11 is rotated by a trajectory T ( The seedling planting movement is performed while reciprocating between the lower part of the seedling stage 12 and the field scene while drawing.

  As shown in FIGS. 2 and 4, a connecting member 36 fixed to both lateral ends of the seedling platform 12 is provided, and an upper case 24b of the center drive case 24 is slidably slidable in the lateral direction of the machine body as shown in FIG. The seedling stage horizontal feed shaft 37 is connected to both ends of the seedling stand. As shown in FIG. 5, a piece member 38 that is connected to the seedling table lateral feed shaft 37 so as to be integrally moved and relatively rotatable, and a spiral groove 39a in which a passive protrusion 38a of the piece member 38 is engaged is provided on the outer peripheral surface. A rotation shaft 39, a rotation transmission shaft 41 linked to the rotation shaft 39 via a gear mechanism 40, and a transmission chain 42 that links the rotation transmission shaft 41 to the seedling planting mechanism drive shaft 16. A feed mechanism 43 is provided in the center drive case 24.

  As a result, the seedling planting operation unit 10 reciprocates the seedling platform horizontal feed shaft 37 in the lateral direction of the machine body by the seedling lateral feed mechanism 43, and each seedling platform 12 is planted by the seedling platform horizontal feed shaft 37. In conjunction with the seedling planting movement of the mechanism 10, it is reciprocated in the lateral direction of the self-propelled machine body along the sliding guide rail 14, and the self-propelled machine body side is placed on the seedling platform 12 by the planting claws 11 a of each seedling planting mechanism 11. The block seedlings for one stock are sequentially taken out from the lower end of the corresponding seedlings among the plurality of matted seedlings placed side by side in a state from the lateral one end side to the other end side of the mat-like seedlings, The taken block seedlings are transported downward from the seedling outlet provided in the sliding guide rail 14 and planted on the mud surface of the field.

  As shown in FIG. 7 and the like, the preliminary seedling stage 50 is supported by a support frame 60 connected to the transmission case 21 and the center drive case 24 of the machine body frame 20.

  As shown in FIG. 11 and the like, the support frame 60 is constituted by a single bent round pipe material that is bent and formed at the left and right ends of the upper case 24b in the pair of left and right front leg rods 61 and the center drive case 24. A pair of left and right rear leg rods 62 connected to each other, a left front coupling rod 63 connecting the upper ends of the left front leg rod 61 and the rear leg rod 62, and a right front leg rod 61 and a rear leg rod 62. A right connecting rod 64 for longitudinally connecting the upper end portions of the left and right bodies, and a front connecting rod 65 for connecting the lower end portions of the left and right front leg rods 61 to each other. A connecting plate 66 to be connected to the mission case 21 is provided at an intermediate portion of the front connecting rod 65. A front support plate 66 is provided on the front end side of the left connecting rod 63 and the right connecting rod 64 to be connected to the front mounting portion 51 made of sheet metal of the preliminary seedling mount 50, and the rear ends of the left connecting rod 63 and the right connecting rod 64. On the side, a rear support plate 67 is provided that is connected to the rear mounting portion 52 made of sheet metal of the preliminary seedling support 50.

  As shown in FIGS. 9, 10, 11, etc., the preliminary seedling stage 50 is manufactured by combining a plurality of bent round bars, and a plurality of self-propelled vehicles arranged in the lateral direction of the self-propelled aircraft. A seedling placement surface 53 formed by a round bar portion 53a facing forward and backward of the machine body and a plurality of laterally oriented round bar parts 53b aligned in the longitudinal direction of the mobile body is provided. The seedling placement surface 53 is configured to be a placement surface that is horizontal or close to it in a state where the self-propelled machine body is in the descending work state.

  A plurality of self-propelled machine body vertical front vertical bar portions 54a arranged in the lateral direction on the front end side of the preliminary seedling stage 50, and the self-propelled machine body lateral direction connecting the front vertical bar parts 54a. A front slip stopper 54 including a front horizontal bar portion 54 b is provided on the front side of the seedling placement surface 53. A plurality of self-propelled aircraft vertical rear vertical bar portions 55a arranged in the lateral direction on the rear end side of the spare seedling platform 50, and the self-propelled aircraft horizontal direction connecting the rear vertical rod portions 55a A rear slip stopper 55 including a rear horizontal bar portion 55 b is provided on the rear side of the seedling placement surface 53. A plurality of self-propelled aircraft vertically oriented left vertical bar portions 56a arranged in the front-rear direction of the self-propelled aircraft on the left lateral end side of the preliminary seedling mount 50, and the self-propelled aircraft connecting the left vertical rod portions 56a. A left slip stopper 56 including a left connecting rod portion 56 b facing forward and backward is provided on the left side of the seedling placement surface 53. A plurality of self-propelled aircraft vertical right vertical bar portions 57a arranged in the front-rear direction of the self-propelled aircraft on the right lateral end side of the spare seedling mount 50, and the self-propelled aircraft bodies connecting the right vertical rod portions 57a. A right non-slip stopper 57 including a right connecting rod portion 57 b facing forward and backward is provided on the right side of the seedling placement surface 53. Two inclined rod portions 58a adjacent to each other among the inclined rod portions 58a inclined upward and rearward from the upper end portion of each front vertical rod portion 54a. A plurality of floating stoppers 58 formed of a connecting rod portion 58b facing the self-propelled machine body connecting the extended end portions of the inclined rod portions 58a are placed on the front side of the seedling placement surface 53 and next to the preliminary seedling stand. They are arranged side by side.

That is, as shown in FIGS. 7 and 8, when the spare seedling A is accommodated in the preliminary seedling placing stand 50, the rear slip stopper that positions the seedling box B containing the spare seedling A on the rear side of the seedling placement surface 53. The seedling placement surface 53 is inserted from above 55, and a plurality of preliminary seedlings A are stored in the seedling box B one by one and placed side by side on the seedling placement surface 53 in the lateral direction of the self-propelled machine body. Then, the front end side of each preliminary seedling A and seedling box B enters below the floating stopper 58, and even if the preliminary seedling stand 50 is likely to be displaced or lifted by the influence of wind or vibration, The position of the seedling box A is received and supported by the anti-slip stoppers 54, 55, 56, and 57 located on the front and rear sides and both sides of the mounting surface 53, thereby preventing the preliminary seedling A from being displaced and preventing floating. By receiving and supporting the front end side of the seedling box B and the preliminary seedling A from above by the stopper 58, each preliminary seedling A is accommodated while suppressing the floating of the preliminary seedling A.
When the spare seedling A accommodated in the spare seedling placing stand 50 is supplied to the seedling placing stand 12 of the seedling planting work unit 10, the rear end side of the seedling box B containing the spare seedling A is lifted from the seedling placing surface 53. Pull out to the rear side of the self-propelled aircraft, pull out the front end side of the seedling box 53 from the lower side of the floating stopper 58 to the rear side of the self-propelled aircraft, and move the spare seedling A together with the seedling box B over the rear non-slip stopper 55 It is made to pull out above seedling stand 12.

  As shown in FIGS. 7 and 8, a pair of left and right support brackets are provided at a portion corresponding to the central portion of the front mounting portion 51 located on the front end side of the preliminary seedling platform 50 in the lateral direction of the self-propelled aircraft. A pointer support portion 59 is provided, and the center pointer 70 is supported by the pointer support portion 59.

  That is, the drawing marker 71 (see FIG. 1) provided on both sides of the seedling planting unit 10 so as to be switchable between the rising storage state and the lowering use state is set to the lowering use state. When the seedling planting travel is performed while the travel index is formed and the next seedling planting travel is performed, the center pointer 70 and the travel index are viewed from the rear of the self-propelled machine body, and the center pointer 70 is aligned with the travel index. By running the runner, planting work is performed so that the distance in the lateral direction of the self-propelled aircraft between the planting seedling by this seedling planting traveling and the planted seedling by the previous seedling planting traveling is constant or almost constant. be able to.

  As shown in FIGS. 12 and 13, the mounting arm 15 that slidably supports the mounting rail 73 fixed to the upper end side of the seedling platform 12 includes a support rod 74 having the mounting arms 15 at both ends. The support frame 74 is connected to the handle frame 7 via a mounting arm 76 connected by a connection bolt 75. The mounting arm 76 is fixed to the handle frame 7 by welding.

  As shown in FIGS. 2 and 12, a main clutch lever 80 for turning transmission from the engine 2 to the transmission case 21 in the vicinity of the base portion of the steering handle bar 8, and the elevating cylinder 6 for elevating the self-propelled aircraft. Operating lever 81 for operating the planting clutch 30 so as to drive and stop the seedling planting operation unit 10, a shift lever 82 for shifting a traveling transmission (not shown), and levers 80, 81, One lever guide 83 having 82 guide grooves is provided.

  The steering handle bar 8 is supported by the upper end portion of the lever guide 83, and the levers 80, 81, 82 swing to the lever guide 83 via a lever support shaft 84 installed inside the lever guide 83. It is supported for free operation. That is, the steering handle bar 8, the main clutch lever 80, the work lever 81, the speed change lever 82, and the lever guide 83 are provided with mounting plates 83b provided on both ends of the lever guide 83, and the support plates provided on the pair of left and right handle frames 7. By attaching to 85, the unit can be attached to the handle frame 7 at once.

  A base portion of the steering handle rod 8 is supported by the lever guide 83 so as to be rotatable around the axis P, and a positioning plate 86 is provided at the base portion of the steering handle rod 8 so as to be integrally rotatable. Positioning bolts 88 inserted through the long holes 87 are provided on the side plate portion 83a of the lever guide 83, and the steering handle bar 8 is supported so that the mounting angle can be adjusted around the axis P.

Side view of walking type rice transplanter Top view of walking type rice transplanter Side view of the center drive case Side view of the side drive case Vertical rear view of center drive case Side view of the side drive case Side view of the spare seedling stand with the spare seedlings accommodated Front view of the spare seedling stand with the spare seedlings accommodated Top view of the spare seedling platform Rear view of the stand Overall perspective view of the stand (A) is a side view with the steering wheel handle and lever attached, (B) is a side view with the steering wheel rod and lever removed, Top view of the support structure on the top end of the seedling stand

Explanation of symbols

8 Steering handle rod 10 Seedling planting section 50 Preliminary seedling stage 53 Seedling placement surface 54, 55, 56, 57 Anti-slip stopper 58 Anti-floating stopper 70 Center pointer A Preliminary seedling B Nursery box

Claims (2)

This is a walking type rice transplanter that has a seedling planting work section and a steering handle rod at the rear of the self-propelled machine body, and a spare seedling placing table for placing and storing mat-like spare seedlings on the front side of the machine body of the seedling planting work section. And
A non-slip stopper is provided on the front and rear sides and both sides of the seedling placement surface of the preliminary seedling placement table to suppress the displacement of the placed seedling box,
A walking type rice transplanter in which a floating stopper is provided on the front side of the seedling placement surface to suppress the floating of the placed seedling box.   The walking type rice transplanter according to claim 1, wherein a center pointer for alignment with a traveling index of a farm scene is supported on a front end side of the preliminary seedling stage.

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