JP2009000083A5 - - Google Patents

Description

Seedling transplanter

  The present invention relates to a seedling transplanter with a ground work device.

In a seedling transplanter equipped with a seedling planting device with a float (sometimes referred to as a rice transplanter), a configuration with a rotor for leveling the field just before seedling planting by the seedling planting device is known. ing.
In the present specification, the forward direction of the seedling transplanter is referred to as the front side, the backward direction is referred to as the rear side, and the left-right direction toward the forward direction is referred to as the left side and the right side, respectively.
JP 2002-101704 A

  Since the rotor mounted on the seedling transplanter disclosed in Patent Document 1 has a large width in the left-right direction of the machine body, it may become an obstacle when the seedling transplanter is stored in a warehouse or when a truck is loaded.

  In addition, when the seedling transplanter is moved forward, mud and water in the field collected in front of the rotor may flow to push down adjacent planted seedlings from the outside of both ends, but such mud and water may flow. There was no workaround for undesirable cases.

  The object of the present invention is to adjust the width in the left-right direction of a ground work device such as a rotor so that the seedling with the ground work device can be adjusted to store in a warehouse or to flow to both sides of mud accumulated in front of the rotor. To provide a transplanter.

The above-mentioned problem of the present invention is solved by the following means.
According to the first aspect of the present invention, there is provided a seedling planting portion (4) provided at the rear portion of the traveling vehicle body (2) so as to be movable up and down, and can be moved up and down with respect to the seedling planting portion (4). ) In the seedling transplanting machine provided with the ground working device (27) having a plurality of leveling rotors (27a, 27b) driven by the drive shaft (70) arranged in the horizontal width direction of the leveling rotors (27a, 27b) The central leveling rotor (27b) disposed at the center in the width direction of the traveling vehicle body (2), the first side leveling rotor (27a) and the first side leveling rotor (27a) respectively disposed on the outside thereof. It consists of a second lateral leveling rotor (27a1) disposed on the outer side, and the rotor drive shaft (70) is disposed on the outer side of the central drive shaft (70b) disposed at the center in the lateral direction of the traveling vehicle body (2). First lateral drive shafts (70a, 70, respectively) arranged ) And second side drive shafts (70a1, 70a1) disposed on the outside of the first side drive shafts (70a, 70a) via joint shafts (96), respectively. A plurality of first side leveling rotors (27a, 27a,...) Are respectively attached to (70a, 70a), and a plurality of second side leveling rotors are respectively attached to the second side drive shafts (70a1, 70a1). The rotors (27a1, 27a1,...) Are attached, and two or more second side leveling rotors (27a1, 27a1,...) Outside the plurality of second side leveling rotors (27a1) are the first. Each of the plurality of second lateral leveling rotors (27a1) is attached to and removable from the second side drive shaft (70a1) by means of a single stopper (95a, 95a,...). One or more second lateral adjustments inside The rotor (27a1) is attached to the second side drive shaft (70a1) by the first shaft connector (97a) and is detachably attached. The second side drive shaft (70a1) is attached to the joint shaft (96). One or more first side leveling rotors (one or more first side leveling rotors (outside of the plurality of first side leveling rotors (27a)) coupled to the first side drive shaft (70a) by detachable connection members (97a, 97b). 27a) is attached to the first side drive shaft (70a) by the second retaining member (95b) and is detachably attached, and is one or more inside the plurality of first side leveling rotors (27a). The first side leveling rotor (27a) is a seedling transplanter that is attached to the first side drive shaft (70a) by a second shaft connector (97b) and is detachably attached.
According to the second aspect of the present invention, a plurality of rotor support frames (68) for supporting the rotor drive shaft (70) are provided, and the upper and lower positions for adjusting the vertical position of the leveling rotors (27a, 27b) via the rotor support frame (68). A position adjusting lever (81) is provided, and a cover (99) for receiving mud from the rear wheel (11) is provided between the rotor support frame (68) at the rear position of the rear wheel (11) of the traveling vehicle body (2). The seedling transplanter according to claim 1, wherein
According to a third aspect of the present invention, there are provided a plurality of rotor support frames (68) for supporting the rotor drive shaft (70), and upper and lower positions for adjusting the vertical position of the leveling rotors (27a, 27b) via the rotor support frame (68). The position adjusting lever (81) is provided, and the wave preventing plates (100) supported by the rotor drive shaft (70) are provided on the left and right sides of the seedling planting part (4), and the wave preventing plate (100) is moved forward. 2. The seedling transplanter according to claim 1, wherein the seedling transplanter has a shape with a narrow width, and a water drain hole (100a) that is narrowed toward the front side in the wave preventing plate (100). .

  According to the first aspect of the present invention, when the seedling transplanter is stored in a warehouse or loaded into a truck, one or more second side ground leveling rotors at both ends together with the second side rotor drive shaft (70a1) ( 27a1) can be removed, and the lateral width of the fuselage can be easily reduced. Moreover, when adjusting the flow of mud, water, etc. to the side, it can remove for every 2nd side leveling rotor (27a1), and can suppress the flow of mud, water, etc.

The second side leveling rotor (27a1) and the first side leveling rotor (27a) can be attached and detached sequentially from the outside, or the plurality of second side leveling rotors (27a1) on the outer side can be removed together. Since it is a structure which can be performed, adjustment of each attachment number of a 1st side leveling rotor (27a) and a 2nd side leveling rotor (27a1) can be performed easily. Further, since the plurality of second lateral leveling rotors (27a1) on the outer portion can be removed together with the outer second side drive shaft (70a1), the lateral width of the machine body can be easily reduced during transportation. . Furthermore, since the shaft couplers (97a, 97b) serve both as a coupling function for the joint shaft (96) and a retaining function for the leveling rotors (27a, 27a1), weight reduction and cost reduction can be achieved.
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, mud from the rear wheel (11) is received by the cover (99), and mud splashes on the seedling planting part (4). Can be prevented.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the waves generated in the muddy water swept away by the leveling rotors (27a, 27b) and the side floats (56) by the wave preventing plate (100). Can be prevented. In addition, the wave preventing plate (100) has a shape that becomes narrower as it goes forward, and the wave preventing plate (100) is provided with a drain hole (100a) that becomes thinner as it goes to the front side. The muddy water can be gradually overflowed from the low water level. Furthermore, since the wave preventing plate (100) is supported by the rotor drive shaft (70), when the leveling rotors (27a, 27b) are raised and stored, the wave preventing plate (100) can also be raised and stored easily.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is the side view and top view of the riding type rice transplanter with a guard fertilizing device which attached | installed the guard fertilizing device as a granular material delivery apparatus which is one Example using this invention. In this riding type rice transplanter 1 with a guard fertilizer, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via a lifting link device 3 so as to be movable up and down, and an operator is placed on the rear upper side of the traveling vehicle body 2 from the body. A guard 5 is provided so as not to drop it.

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

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

  The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly grid-shaped (see FIG. 2), and mud on the shoe of the worker walking through the step 35 falls on the field. The rear part on the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

  Further, on both the left and right sides of the front part of the traveling vehicle body 2, the spare seedling platforms 38, 38 on which the replenishment seedlings are placed can be pivoted to a position projecting laterally from the machine body and a position housed inside. Is provided.

  The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side thereof. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted by hydraulic pressure. The upper link 40 pivots up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

  The seedling planting section 4 has an eight-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and reciprocates left and right to supply seedlings one by one to the seedling outlet 51a, and horizontally When all the seedlings are supplied to the seedling outlet 51a, the seedling feed belt 51b is used to transfer the seedlings downward by a seedling feeding belt 51b, and the seedling planting is carried out in the field. Attaching device 52,... Includes a pair of left and right drawing markers 53 for drawing the aircraft path in the next stroke to the topsoil surface.

  In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and middle floats 57 and side floats 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 57, 56 in contact with the mud surface of the field, the floats 55, 57, 56 slide while leveling the mud surface, and the seedling planting device 52, Seedlings are planted by ... Each of the floats 55, 57, and 56 is rotatably attached so that the front end side thereof moves up and down according to the unevenness of the soil surface of the field, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. The planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4.

  A guard 5 is provided behind the seat 31 to prevent the worker from falling from the airframe when working on the rear step 36. As shown in FIG. 1, a fuel tank 60 is disposed in front of the airframe.

  A rotor 27 (27a, 27b) which is an example of a leveling device is attached to the seedling planting unit 4. In addition, the seedling mount 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame 65 having a full width in the left-right direction and the vertical direction that supports the entire seedling planting unit 4 as a rail.

The side view of FIG. 3 and the rear view of FIG. 4 show the seedling planting part 4 (the drawing marker 53 is not shown) and the main part of the rotor support structure, and FIG. 5 shows the rotor 27, the floats 55 to 57, and the seedling planting. The principal part top view of the apparatus 52 part is shown.
The rotor support structure includes a beam member 66 whose upper ends are rotatably supported on both side members 65b of the support frame 65 of the seedling stage 51, a support arm 67 fixed to both ends of the beam member 66, and the support. A rotor support frame 68 that is rotatably attached to the arm 67 is provided. A drive shaft 70 (70a, 70b) of the rotor 27 (27a, 27b) is attached to the lower end of the rotor support frame 68. Further, the lower end portion of the rotor support frame 68 is connected to a connecting member 71 rotatably attached to the transmission case 50.

  As shown in FIG. 5, the ground leveling rotor 27 b at the center portion in front of the center float 55 in relation to the arrangement position with the floats 55 to 57 is the leveling rotor 27 a at the side portion in front of the middle float 57 and the side float 56. It is arranged more forward. Therefore, power to the drive shaft 70a of the rotor 27a is transmitted from the gear in the gear case 18 of the rear wheel 11 through the universal joint 72 and the like, and the drive shaft 70b of the rotor 27b is driven by the drive shafts 70a, 27a of both rotors 27a, 27a. Power is transmitted from a pair of chains (not shown) in a pair of left and right chain cases 73 to which power is transmitted from the end portion inside the vehicle body of 70a.

  A rotor support arm 67 is arranged behind a rear wheel 11 (three tires 11a to 11c are not shown in FIG. 5) each including three tires 11a to 11c on the left and right sides. A rotor support frame 68 that supports the first side drive shaft 70a behind the rear wheel 11 and adjusts the rotor 27a up and down is joined between the three tires 11a to 11c in the left-right direction, thereby connecting the rotor The joint between the support frame 68 and the beam member 66 is prevented from interfering with the rear wheel 11.

  Further, since the drive shaft 70b of the rotor 27b at the center of the machine body is only supported through a pair of left and right chain cases 73, 73, a pair of left and right chain cases 73, 73 are provided to reinforce the chain cases 73, 73. A reinforcing member 74 for bridging is provided.

Further, the rotor 27b is suspended through a spring 78 by a pair of link members 76 and 77 whose upper ends are supported by the beam member 66.
The pair of link members 76 and 77 includes a first link member 76 whose one end is fixedly supported by the beam member 66 and a second link member 77 whose one end is rotatably connected to the other end of the first link 76. Thus, the spring 78 is connected between the other end of the second link member 77 and a mounting piece 74a rotatably supported by the reinforcing member 74.

  The upper and lower positions of the rotors 27 a and 27 b can be adjusted by a vertical position adjustment lever 81 via a rotor support frame 68, a rotor support arm 67 and a beam member 66, but the beam member 66 and the vertical position adjustment lever 81 are locked. The part is shown in FIG. 7A shows a cross-sectional view taken along line AA in FIG. 4, and FIG. 7B shows a side view seen from the direction of arrow A in FIG. 7A.

  The lower end portion of the vertical position adjusting lever 81 is connected by a link member 83 having a “U” cross section and a rod 84 penetrating the link member 83 in the horizontal direction. The link member 83 is integrally coupled to the lever boss 82. The lever boss 82 is composed of an L-shaped plate 82a in side view and a flat plate 82b integrated with the L-shaped plate 82a. A shaft supported by the support frame 65 at the center of the L-shaped plate 82a. A portion 85 is provided, and the L-shaped plate 82 a is rotatably supported by the shaft portion 85. The flat plate 82b of the lever boss 82 is disposed so as to be in contact with the cylindrical portion of the roller 86 having the protrusion 66a protruding from the beam member 66 as a rotation axis.

Therefore, when the vertical position adjusting lever 81 is rotated in the direction of arrow S in FIG. 4, the flat plate 82b of the lever boss 82 pushes up the roller 86, so that the beam member 66 moves upward. At this time, since the roller 86 contacts the flat plate 82b of the lever boss 82 while rotating, the operation load of the vertical adjustment lever 81 can be reduced, and since it is a rotating body, it is free from wear and good operability can be secured. The lever boss 82 pivots up and down, and the lever boss 82 is locked so as to be in contact with the cylindrical portion of the roller 86 having the projection 66a as a rotation axis. The beam member 66 is moved upward by rotation in the direction of arrow S in FIG. Due to the upward movement of the projecting portion 66a, the end portion of the first link member 76 opposite to the connecting portion with the beam member 66 is also rotated upward about the beam member 66. By rotating the first link member 76 upward, the rotor 27b can be lifted upward via the second link member 77 and the spring 78. When the rotor 27b is moved upward, the rotor 27a is also simultaneously moved upward via the drive shaft 70b and the drive shaft 70a.
Since the rotor vertical position adjusting lever 81 is provided at substantially the center of the vehicle body 2, it is easy to balance left and right when the rotors 27a and 27b are moved up and down.

  Further, since the rotor support frame 68 moves upward by the rotation of the support arm 67 in the direction of arrow T (FIG. 3), the rotors 27a and 27b are stored in the storage position, that is, in the back side of the seedling stage 51. Can be moved.

  In this embodiment, the rotor vertical position adjusting lever 81 is rotated in the direction of arrow S in FIG. 4 by rotating the rotor vertical position adjusting lever 81 in the direction of arrow S in FIG. It is set so that it can be raised by a maximum of 15 mm and can be lowered by a maximum of 15 mm from the standard position by turning in the direction opposite to the arrow S direction in FIG.

  The seedling planting unit 4 having an eight-row planting structure includes a transmission case 50 that also serves as a frame, a seedling mounting base that places the seedlings and reciprocates left and right to feed the seedlings one by one to the seedling extraction outlets 51a. 51, a seedling planting device 52 for planting seedlings supplied to the seedling outlet 51a,..., And a pair of left and right drawing markers 53L, 53R for drawing the aircraft path in the next stroke to the topsoil surface. .

FIG. 8 is a rear view showing the connection relationship between the line drawing marker 53, the marker driving marker wire 88, the planting transmission case 50, and the marker driving device 89.
The bases of the left and right drawing markers 53L and 53R are pivotally attached to the tips of the planting transmission cases 50L and 50R, respectively, and the drawing marker 53 is moved up and down by the left and right marker wires 88L and 88R. It is driven by a marker driving device 89 interlocked with As shown in FIG. 8, when the marker wires 88L and 88R are drawn, the drawing markers 53R and 53L stand up, and when the marker wires 88L and 88R are returned, the drawing markers 53R and 53L fall over due to the tension of a spring (not shown). The left and right drawing markers 53L and 53R are not drawn to the topsoil portion of the field in the standing (storage) posture, and are drawn to the topsoil portion of the field in the fall posture.

FIG. 9 shows a side view of the main part of the drive mechanism of the drawing marker 53.
As shown in FIG. 9A, a rod 90 having the rotation fulcrum 53a as an axis is disposed at the rotation fulcrum 53a at the base of the drawing marker 53, and the rotation axis 90a (53a) of the rod 90 is arranged. ) Is in contact with the bending portion on the inner peripheral side of the bending piece 91 connected to the distal end portion of the wire 88 via the connecting portion 88a. Further, a pentagonal plate 92 urged toward the working side of the marker 53 by a spring 93 supported by the airframe is arranged at a position parallel to the rod 90, with the pivot fulcrum 53a at the base of the marker 53 as an axis. The bending piece 91 is rotatable about a turning fulcrum 91a provided near the end of the bending piece 91 in the vicinity of the end opposite to the turning axis 92a (53a) of the pentagonal plate 92. It is connected.

Therefore, when the wire 88 is pulled in the direction in which the drawing marker 53 is raised to the storage position, the rod 90, the pentagonal plate 92, and the curved piece 91 move to the dotted line position (arrow A direction) in FIG.
At this time, a distance (L1) between the rotation axis 92a of the pentagonal plate 92 (the rotation fulcrum 53a of the marker) and the connecting portion 88a between the wire 88 of the bending piece 91 (a moment due to the traction force (P) by the wire 88 acts). The length of the direction) is not the rod 90 and the curved piece 91 shown in FIG. 9B, but the connecting portion 88a of the conventional drawing marker 53 and the wire 88 using the pentagonal plate 92 and the rotation axis of the pentagonal plate 92. Since it is longer than the distance (L2) from the core 92a (the rotation fulcrum 53a of the marker), the drawing marker 53 can be pulled up with a small force.
PL2 <PL1

  When the same traction force (P) is applied to the wire 88, the configuration of this embodiment can lift a heavier one than the conventional configuration. If it is the drawing marker 53 of the same weight, it will be pulled up lightly.

Thus, when the action is brought into contact with the ground, when housed by applying the principle of leverage, a configuration to increase by rotating the drawing markers 53 formed by substantially perpendicularly around the rotary fulcrum 53a. As in this embodiment, in the multi-row planting rice transplanter (especially 8 or more), the length of the drawing marker 53 is increased and the weight is also increased. For this reason, a great amount of force is required to pull up the marker 53 by the wire 88 near the fulcrum, but the drawing marker 53 can be pulled up with a small force by utilizing the lever principle at this portion.

As shown in FIG. 4, a plurality of outer leveling rotors (second side leveling rotors) 27a1 and 27a1 on both left and right ends are supported by rotor extension drive shafts (second side drive shafts) 70a1 and 70a1 extending in the left-right direction. However, the rotor extension drive shafts 70a1 and 70a1 are detachably attached to the rotor drive shafts (first side drive shafts) 70a and 70a on the center side, and are attached to the rotor extension drive shafts 70a1 and 70a1. The leveling rotor (second side leveling rotor) 27a1, 27a1 to be mounted is removable.

  FIG. 6 shows a plan view of the right rotor portion. One or more detachable second side leveling rotors 27a1 are integrated with a rotor extension drive shaft (second side drive shaft) 70a1. The rotor extension drive shaft 70a1 is attached to a rotor drive shaft (first side drive shaft) 70a, a joint shaft 96 inserted into the extension drive shaft 70a1, and the joint shaft 96 and the extension drive shaft 70a1. The set bolts 97a and 97b inserted into the insertion holes provided between the joint shaft 96 and the joint shaft 96 and the rotor drive shaft 70a can be attached and detached freely.

  As shown in FIG. 6, the outermost second side leveling rotor 27a1 is removed by the first split provided on the outermost side of the rotor extension drive shaft (second side drive shaft) 70a1 on the left and right ends of the fuselage. The second side leveling rotor 27a1 that is second from the outermost side is removed if the pin 95a of the second split pin hole provided on the second side rotor drive shaft 70a1 is removed. Further, if the bolt 97a of the bolt hole is removed, the third second side leveling rotor 27a1 and the rotor extension drive shaft (second side drive shaft) 70a1 are removed from the outside (the joint shaft 96 may also be removed at this time) Furthermore, if the pin 95b of the split pin hole provided in the rotor drive shaft (first side drive shaft) 70a closer to the center of the machine body is removed, the fourth ground leveling rotor (first side leveling rotor) 27a is removed from the outside, If the bolt 97b in the bolt hole is further removed Fifth leveling rotor (first side leveling rotor) 27a from the outside.

  In this way, the rotors 27a1,..., 27a... Can be attached and detached sequentially from the outside, and a plurality of (three) rotors 27a1 on the outside part can be removed together. Is used for both the connecting function of the joint shaft 96 and the retaining function of the rotor piece.

  With the above configuration, when the seedling transplanter is stored in a warehouse or loaded on a truck, the outermost rotor drive shafts 70a1 and 70a1 and the rotors 27a1 and 27a1 attached to the rotor drive shafts 70a1 and 70a1 are combined. Can be removed to reduce the width of the aircraft. (At this time, the floats 56 and 56 remain fixed to the seedling planting part 4).

  Further, when the seedling transplanter is advanced, mud, water, etc. collected in the field in front of the rotor 27 flows so as to push down adjacent planted seedlings from the outside of both ends, and the rotor extension drive shafts 70a1 at both left and right ends. , 70a1 and rotors 27a1, 27a1 at both ends attached to the rotor extension drive shafts 70a1, 70a1 are removed to reduce the left and right widths of the body, and the distance between the left and right inner rotors 27a, 27a and the adjacent planting seedlings is increased. Thus, the mud flow by the rotor 27 can be adjusted so as not to affect the seedling.

  By providing a thin cover 99 (FIG. 4) made of rubber or the like between the adjacent rotor support frames 68, 68 located behind the rear wheel 11, mud splashes from the rotor 27 and the front rear wheel 11. The mud splash to the seedling planting part 4 can be prevented.

  By providing the front and rear long wave blocking plates 100 (see FIG. 10) on both sides of the seedling planting part 4 with the rotor drive shafts 70a1 and 70a1 at the left and right ends and the planting depth pipe 28 (see FIG. 3) as supporting fulcrums, It is possible to prevent muddy water pushed away by the rotor 27 and the side float 56 from flowing into the side groove.

  As shown in the side view of the rotor portion in FIG. 10, the wave preventing plate 100 provided on the outermost part of the rotor 27 is provided with a water drain hole 100 a, and in the configuration of the rotor wave preventing plate 100, the plate shape is tapered. As a result, the muddy water gradually overflows from the water level lower than the front.

Moreover, the wave preventing plates 100 since is supported on the rotor drive shaft 70a1, breakwater plate 100 when raising the rotor 27 accommodated in the warehouse is also easily accommodating increased.

  Further, as shown in the perspective view of the rotor portion in FIG. 11, a relatively short side plate 100c provided on the inner surface in the left-right direction of the airframe as the wave-proof plate 100 and a relatively long side plate on the outer side in the left-right direction along the front-rear direction. It is also possible to provide a drainage hole 100e on the side plate 100c on the center side (inner side) of the machine body from a plate shape having a "U" shape when viewed from the front side provided with 100b and the top plate 100d.

  In this case, the muddy water can flow backward from between the side plates 100b and 100c, so that drainage is improved. Further, by forming a hole 100e 'smaller than the inner side surface plate 100c in the outer side surface plate 100b as viewed from the center of the machine body, the amount of water accumulated between the side surface plates 100b and 100c can be reduced.

  Further, the plate 101 above the wave preventing plate 100 is connected to the plate material 104 supported by the transmission case 50 of the seedling planting portion 4, and a rotating plate 102 having a wave preventing auxiliary function is provided in front of the wave preventing plate 100. Is provided. The wave preventing plate 100 and the rotating plate 102 are pressed downward by a spring 103 provided between the plate material 101 and the top plate 100 d of the wave preventing plate 100.

  The present invention has high industrial applicability as a wide multi-row seedling planting machine.

It is a side view of the riding type rice transplanter of the Example of this invention. It is a top view of the riding type rice transplanter of FIG. It is a principal part side view of the seedling planting part of the riding type rice transplanter of FIG. It is a principal part rear view of the support structure of the seedling mounting stand of the riding type rice transplanter of FIG. It is a principal part top view of the seedling planting part of the riding type rice transplanter of FIG. It is a top view of the rotor part of the right side of the seedling mounting stand of the riding type rice transplanter of FIG. FIG. 7A is a cross-sectional view taken along the line A-A in FIG. 4, illustrating a locking relationship between a vertical adjustment lever of a rotor and a beam member of a seedling planting portion of the riding type rice transplanter in FIG. 1. FIG.7 (b) is the side view seen from the arrow A direction of Fig.7 (a). It is a rear view which shows the connection relation of the drawing marker of the riding type rice transplanter of FIG. 1, this marker drive marker wire, a planting transmission case, and a marker drive device. FIG. 9 is a side view (FIG. 9 (a)) of a main part of a drawing marker driving mechanism of the riding type rice transplanter of FIG. 1 and a main part side view (FIG. 9 (b)) of a conventional drawing marker driving mechanism. It is a side view of the rotor part of the seedling planting part of the riding type rice transplanter of FIG. It is a perspective view of the rotor part of the other Example of the seedling planting part of the riding type rice transplanter of FIG.

DESCRIPTION OF SYMBOLS 1 Riding type rice transplanter 2 Traveling vehicle body 3 Lifting link device 4 Seedling planting part 5 Guard 10 Front wheel 11 Rear wheel 12 Mission case 13 Front wheel final case 15 Main frame 18 Rear wheel gear case 20 Engine 21 Belt transmission device 23 HST
25 Planting clutch case 26 Planting transmission shaft 27 Leveling rotor 27a First side leveling rotor 27a1 Second side leveling rotor 27b Central leveling rotor 28 Planting depth pipe 30 Engine cover 31 Seat 32 Front cover 34 Handle 35 Floor step 36 Rear step 37 Rotor cover 37a Rotating fulcrum 38 Preliminary seedling stage 40 Upper link 41 Lower link 42 Link base frame 43 Vertical link 44 Connecting shaft 46 Lifting hydraulic cylinder
DESCRIPTION OF SYMBOLS 50 Transmission case 51 Seedling stand 51a Seedling exit 51b Seedling feeding belt 52 Seedling planting device 53 Drawing marker 55 Center float 57 Middle float 56 Side float 60 Fuel tank 65 Seedling planting part support frame 65a Support roller 65b Both side member 66 Beam member 66a Protruding portion 67 Support arm 68 Rotor support frame 70 Drive shaft 70a1, 70a1 Rotor extension (second side) drive shaft 70a, 70a Rotor (first side) drive shaft 71 Connecting member 72 Universal joint 73 Chain case 74 Reinforcing members 76, 77 Link member 78 Spring 81 Rotor vertical position adjustment lever 82 Lever boss 82a L-shaped plate 82b Planar plate 83 Link member with cross-section "U" shape 84 Rod 85 Shaft 86 Roller 88 Marker wire 88a Connecting portion 89 Marker Drive equipment 90 Rod 91 Curved piece 91a Rotating fulcrum 92 Pentagonal plate 92a Rotating shaft center 93 Spring 95a, 95b Pin 96 Joint shaft 97a, 97b Set bolt 99 Cover 100 Wave barrier plate 100a Drain hole 100b Outer side plate 100c Inner side plate 100d Top plate 100e, 100e 'Drain hole 101 Plate material 102 Rotating plate 103 Spring 104 Plate material

Claims (3)

A seedling planting part (4) provided at the rear part of the traveling vehicle body (2) so as to be movable up and down, and arranged so as to be movable up and down relative to the seedling planting part (4) and in the lateral width direction of the traveling vehicle body (2). In the seedling transplanting machine provided with the ground working device (27) having a plurality of leveling rotors (27a, 27b) driven by the driven drive shaft (70),
The leveling rotors (27a, 27b) include a central leveling rotor (27b) disposed at the center in the width direction of the traveling vehicle body (2), a first side leveling rotor (27a) disposed on the outer side thereof, and the first leveling rotor (27a). A second side leveling rotor (27a1) disposed outside the side leveling rotor (27a),
The rotor drive shaft (70) includes a central drive shaft (70b) disposed at the center of the traveling vehicle body (2) in the lateral width direction, first side drive shafts (70a, 70a) disposed on the outer side thereof, and the first drive shaft (70a). The first side drive shaft (70a, 70a) is composed of a second side drive shaft (70a1, 70a1) disposed on the outside of the one side drive shaft (70a, 70a) via a joint shaft (96). ) Are attached to a plurality of first side leveling rotors (27a, 27a,...), And each of the second side drive shafts (70a1, 70a1) is provided with a plurality of second side leveling rotors (27a1, 27a1,. 27a1,... Are attached, and two or more second side leveling rotors (27a1, 27a1,...) Outside the plurality of second side leveling rotors (27a1) are the first stoppers. (95a, 95a, ...) One or more second side leveling rotors (27a1) inside the plurality of second side leveling rotors (27a1) are detachably attached to the second side drive shaft (70a1). Is attached to the second side drive shaft (70a1) by the first shaft connector (97a) and is detachably attached, and the second side drive shaft (70a1) is detachably connected to the joint shaft (96). The members (97a, 97b) are connected to the first side drive shaft (70a), and one or more first side leveling rotors (27a) outside the plurality of first side leveling rotors (27a) One or more first sides on the inner side of the plurality of first side leveling rotors (27a), which are removably attached to the first side drive shaft (70a) by the two stoppers (95b). The ground leveling rotor (27a) is connected to the second shaft. Seedling transplanter, characterized in that the attachment removably attached to with respect to the first side drive shaft by (97b) (70a). A plurality of rotor support frames (68) for supporting the rotor drive shaft (70) are provided, and a vertical position adjustment lever (81) for adjusting the vertical position of the leveling rotors (27a, 27b) via the rotor support frame (68) is provided. A cover (99) for receiving mud from the rear wheel (11) is provided between the rotor support frame (68) at the rear position of the rear wheel (11) of the traveling vehicle body (2). The seedling transplanter according to 1. A plurality of rotor support frames (68) for supporting the rotor drive shaft (70) are provided, and a vertical position adjustment lever (81) for adjusting the vertical position of the leveling rotors (27a, 27b) via the rotor support frame (68) is provided. The wave breaker plate (100) supported by the rotor drive shaft (70) is provided on both the left and right sides of the seedling planting part (4), and the wave breaker plate (100) has a shape that becomes narrower toward the front side. The seedling transplanter according to claim 1, wherein a water drainage hole (100a) is provided in the wave preventing plate (100) so that the width decreases toward the front side.