KR20090009151A - Seedling transplanter - Google Patents

Abstract

A seedling transplanter is provided, which prevents the pulsating of the seedling transplantation tool by the non-equivalent driving mechanism and appropriately transplants the seedling. A seedling transplanter comprises: a transmission changing the transplantation interval; a non-equivalent driving mechanism which improves an operation speed of the seedling implantation device against the running speed to rapidly transplant the seedling in the field; a lever(123) changing the transmission; and a device for control of restricting shift to the high speed of the gearshift(124).

Description

Seedling transplanter

The present invention relates to a mother implanter capable of changing the main planting interval.

In a mother implanter (sometimes referred to as a rice transplanter) having a float implanter, the parent implanter of the parent implanter moves at a constant speed with respect to the traveling speed while the mother implanter advances. They are rotated and planted in rice fields at predetermined intervals.

When using a mother implanter equipped with an inconstant transmission by an eccentric gear or the like, the parent implantation tool is operated via the inconstant speed transmission mechanism, and in the case of planting at a large interval, the operation trajectory of the operation of the parent implanting tool is appropriately adjusted. Although there is a mother implanter in which mock transplantation is appropriately performed, when the operating speed of the mother implanter becomes high, pulsation phenomenon (unsteady movement that seems to generate vibration) may occur in transmission of the mother implanter.

In order to prevent this, a mother implanter having a mechanism for preventing the pulsation phenomenon from occurring in the transmission of the mother implanter has been developed by providing a one-way clutch for reversing prevention between the forward and backward transmission and the inconstant speed transmission mechanism.

[Patent Document 1] Japanese Patent Laid-Open No. 2005-143340

In the mother implanter provided with the mother transplant apparatus disclosed in the patent document 1, since the inconstant speed transmission mechanism is attached, when planting the hair at a relatively wide interval, the mother transplant apparatus operates when the traveling speed is shifted to the high speed side by operation of the shift lever. The speed was so high that pulsations were likely to occur in the parent implant.

Then, the subject of this invention is providing the hair transplanter which can prevent the pulsation of the hair transplant tool by an inconstant speed transmission mechanism, and can transplant a hair suitably.

The said subject of this invention is solved by the following solution means.

The invention according to claim 1 changes the traveling speed of the traveling vehicle body 2 by shifting the power from the traveling vehicle body 2, the engine 20 mounted on the traveling vehicle body 2, and the engine 20. The mother transplant unit 4 includes a transmission device 23 having a transmission device 23, a transmission lever 124 for operating the transmission device 23 to change the traveling speed, and a mother transplant device 52 for planting in rice fields. In the mother implanter connected to the rear part of (2), the operating speed of the weekly transmission device A for changing the simulation implantation interval and the mother implanter 52 with respect to the traveling speed is determined. When the 52 is planted in a rice paddy, the inconstant speed transmission mechanisms 100 and 112 which are inconstant speed-driven so as to be fast, the weekly lever 123 for shifting the weekly transmission A, and the daytime by the weekly lever 123 When operating to the side to be set wide, the regulating device 123b which regulates the shift to the high speed side of the shift lever 124 is controlled. This tableware is characterized by having.

In the present specification, the forward direction of the parent implanter is referred to as the front side and the retracted direction as the back side, and the left and right directions are respectively left and right toward the forward direction.

In general, when setting the mock transplantation interval (weekly) relatively wide, the operating speed of the parent implanter 52 relative to the running speed of the parent implanter is not known in the paddy field in order to appropriately track the operation of the parent implanter. When the mother implanter 52 is operated by inconstant speed transmission so as to be fast at a time, the seedlings are planted, but the operation of the mother implanter is accelerated or delayed by the inconstant speed transmission, so that pulsation occurs in the transmission of the mother implanter. In addition, since the change in the operating speed of the mother implanter is amplified at the time of high speed forward advance of the mother implanter, the height difference in the change in the operating speed of the mother implanter becomes large, and the pulsation becomes large.

However, according to the invention of claim 1, when the daytime is set wide, the regulating device 123b regulates the shift to the high speed side of the shift lever 124 and regulates the shift to the high speed side, so that the pulsation is suppressed and the degree of transplantation is controlled. Improves.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described based on drawing.

1 and 2 are a side view and a plan view of a riding type rice transplanter which is an embodiment of the present invention. The passenger-type rice transplanter 1 is mounted to the rear side of the traveling vehicle body 2 via a lifting linkage device 3 so as to be able to lift up and down, and the operator is placed on the rear side of the traveling vehicle body 2 from the aircraft. A guide 5 is provided to prevent it from falling down.

The traveling vehicle body 2 is a four-wheel drive vehicle having a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 which are driving wheels, and the front case of the vehicle body has a mission case ( 12) is disposed, the front wheel final case (13, 13) is installed on the left and right sides of the mission case 12, from each front wheel support that can change the steering direction of the left and right front wheel final case (13, 13) The left and right front wheels 10 and 10 are respectively provided on the left and right front wheel axles protruding outward. In addition, the front end portion of the main frame 15 is fixed to the rear portion of the mission case 12, and the rear wheel gear case 18 is formed with the rear wheel rolling shaft provided horizontally in front and rear horizontally at the rear left and right center portions of the main frame 15. 18 is supported by the rolling material, and the rear wheels 11 and 11 are mounted on the rear wheel axles protruding outward from the rear wheel gear cases 18 and 18.

The engine 20 is mounted on the mainframe 15, and the rotational power of the engine 20 is transmitted through the transmission through the hydraulic continuously variable transmission (HST) 23, which becomes the belt transmission 21 and the transmission. Is passed to 12. The rotational power transmitted to the mission case 12 is shifted by a traveling power transmission device (not shown) in the mission case 12, and then separated out by the driving power and the external take-out power. The driving power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest to the rear wheel gear cases 18 and 18 to transmit the rear wheels 11 and 11. To drive. Moreover, the external extraction power is transmitted to the transplant clutch case 25 provided in the rear part of the traveling vehicle body 2, and is then transmitted to the mother implant part 4 by the transplant transmission shaft 26. As shown in FIG.

The upper part of the engine 20 is covered with the engine cover 30, and a seat 31 is provided thereon. In front of the seat 31, there is a front cover 32 in which various operation mechanisms are incorporated, and a handle 34 for steering the front wheels 10 and 10 is provided above it. The lower left and right both sides of the engine cover 30 and the front cover 32 are horizontal floor steps 35. The floor step 35 is a part of lattice shape (refer FIG. 2), and the mud accumulated in the shoe of the worker who walks the floor step 35 falls to a rice paddy. The rear part on the floor step 35 is a rear step 36 which also serves as a rear wheel fender.

In addition, on both left and right sides of the traveling vehicle body 2, preliminary base metal bands 38 and 38, which carry replenishing hairs, are rotatably provided at positions protruding laterally from the body and at positions accommodated inside.

The lifting link device 3 has a parallel link configuration and includes one upper link 40 and a pair of left and right lower links 41 and 41. These upper links 40 and lower links 41 and 41 are pivoted on the linkage base frame 42 of the rear door type in which the base side thereof is placed in the rear end of the main frame 15. It is installed with material, and the vertical link 43 is connected to the front end side. Then, the connecting shaft 44, which is supported by the rotational material, is inserted and connected to the mother implant portion 4 at the lower end of the vertical link 43, and the mother implant portion 4 is formed around the connecting shaft 44. It is connected to the rolling material. The lifting hydraulic cylinder 46 is provided between the support member fixed to the main frame 15 and the tip of a swing arm (not shown) integrally formed on the upper link 40. The lifting hydraulic cylinder 46 is provided. ) By hydraulic expansion and contraction, the upper link 40 rotates up and down, and the parent implant portion 4 moves up and down in a substantially constant posture.

The hair transplanting section 4 has an eight-joint configuration, and the transmission case 50 serving as a frame and the mat-hair are moved left and right, and the hair is supplied to each pair of hair outlets 51a,... When all the hairs are supplied to the hair outlets 51a, ..., the hair transplanting stages in which the hairs are fed to the rice pads 51 and the hair outlets 51a, ... which transfer the hairs to the lower portion by the hair conveying belts 51b, ... The apparatus 52, ..., and the pair of left and right scribing markers 53 etc. which draw the gas path in a next stroke to the topsoil surface, etc. are provided.

In the lower part of the mother implant part 4, the center float 55 is provided in the center, and the middle float 57 and the side float 56 are provided in the left and right both sides, respectively. When the gas is advanced in a state where these floats, the center float 55, the middle float 57 and the side float 56, are grounded on the rice paddy surface, the center float 55, the middle float 57 and the side float 56 ) Slides while stopping the mud surface, and the seedlings are planted by the seedling implants 52,. Each float of the center float 55, the middle float 57, and the side float 56 is installed in the rotational material so that the shear side moves up and down in accordance with the unevenness of the non-topsoil surface. Up and down movement of all of the 55 is detected by an angle of control sensor (not shown), and by raising and lowering the parent implant unit 4 by changing the hydraulic valve controlling the lifting hydraulic cylinder 46 according to the detection result, Keep the simulated implant depth constant at all times.

A guide 5 is provided at the rear of the seat 31 so that the operator does not fall from the gas phase even when working on the rear step 36.

The mother transplant part 4 is provided with the 1st rotor 27b and the 2nd rotor 27a which are an example of a stop device. Moreover, the base material base 51 is a structure which slides the support roller 65a of the spherical support frame 65 of the width | variety in the left-right direction and up-down direction which support the whole mother transplant part 4 in a left-right direction as a rail. to be.

A side view of FIG. 3 and a back view of FIG. 4 show the parent implant 4 (the drawer marker 53 is not shown) and the main parts of the rotor support structure, and FIG. 5 shows the first rotor 27b and the second rotor. A plan view of the main parts of the portion 27a, the center float 55, the middle float 57, the side float 56, and the parent implanter 52 is shown.

In the rotor support structure, the support which adhered to both ends of the girder member 66 and the girder member 66 whose upper end was supported by the rotational material on both sides peripheral members 65b of the said support frame 65 of the base material base 51 was rotated. The rotor support frame 68 provided with the rotating material to the arm 67 and the said support arm 67 is provided. The lower end of the rotor support frame 68 is provided with a first drive shaft 70b and a second drive shaft 70a of the first rotor 27b and the second rotor 27a. Moreover, near the lower end of the rotor support frame 68, it is connected to the connection member 71 provided with the rotational material in the transmission case 50. As shown in FIG.

As shown in FIG. 5, the first rotor 27b in front of the center float 55 is the middle float 57 in the relationship between the arrangement position of the center float 55, the middle float 57, and the side float 56. And the second rotor 27a in front of the side float 56. Therefore, the power from the second rotor 27a to the second drive shaft 70a is transmitted from the gears in the rear wheel gear case 18 of the rear wheel 11 through the material joint 72 or the like, and the first rotor 27b. The first drive shaft 70b of the pair of chains in the left and right pair of chain cases 73 and 73 to which power is transmitted from an end portion inside the vehicle body of the second drive shaft 70a of the second rotor 27a, respectively. Power).

Although the support arm 67 is arrange | positioned at the back of the rear wheel 11 which consists of three tires 11a, 11b, 11c, respectively, the support arm 67 and the 2nd drive shaft 70a are rear of the rear wheel 11, respectively. The rotor support frame 68 for holding the first rotor 27b and the second rotor 27a up and down is joined between three tires 11a, 11b, and 11c, respectively. The junction between 68 and the girder member 66 is prevented from interfering with the rear wheel 11.

In addition, since the first drive shaft 70b of the first rotor 27b in the center portion of the body is supported only by a pair of left and right chain cases 73 and 73, the left and right for reinforcement of the chain cases 73 and 73. The reinforcement member 74 which mediates a pair of chain cases 73 and 73 is provided.

In addition, the first rotor 27b is suspended through the spring 78 by the first link member 76 and the second link member 77 whose upper end is supported by the girder member 66.

One end of the first link member 76 and the second link member 77 is provided at the other end of the first link member 76 and the first link member 76 having one end fixedly supported to the girder member 66. The spring is made up of a second link member 77 connected to a rotating material, and between the other end of the second link member 77 and an installation piece 74a supported by the rotating material by the reinforcing member 74. (78) is connected.

Although the first rotor 27b and the second rotor 27a can be adjusted by the up / down position adjusting lever 81 through the rotor support frame 68, the support arm 67, and the girder member 66, 6 shows a locking portion between the girder member 66 and the up / down position adjustment lever 81. Fig. 6A is a cross-sectional view taken along the line AA of Fig. 4, and a side view seen from the arrow A direction in Fig. 6A is shown in Fig. 6B.

The lower end part of the up-down position adjustment lever 81 is connected by the link member 83 of cross section "CO" shape, and the rod 84 which penetrates the said link member 83 in a horizontal direction. The link member 83 is integrally engaged with the lever boss 82. In addition, the lever boss 82 is composed of an L-shaped plate 82a and a flat plate 82b integral with the L-shaped plate 82a in a side view, and a support frame is provided at the center of the L-shaped plate 82a. A shaft portion 85 supported by 65 is provided, and the L-shaped plate 82a is supported by the shaft portion 85 with a rotating material. Moreover, the flat plate 82b of the lever boss 82 is arrange | positioned so that it may contact the cylindrical part of the roller 86 which makes the projection 66a which protruded from the girder member 66 the rotation axis.

Therefore, when the up-down positioning lever 81 is rotated in the arrow S direction of FIG. 4, the girder member 66 moves upward because the flat plate 82b of the lever boss 82 pushes up the roller 86. At this time, since the roller 86 is in contact with the flat plate 82b of the lever boss 82 while rotating, it is possible to predict the operating load of the up and down position adjusting lever 81 and at the same time, since it is a rotating body, there is no wear and good operability. It can be secured. Since the lever boss 82 rotates up and down, and the lever boss 82 is engaged to contact the cylindrical portion of the roller 86 having the projection 66a as the rotation axis, the projection 66a is positioned up and down. The girder member 66 is moved upward by the rotation of the adjustment lever 81 in the body right direction (arrow S direction in FIG. 4). The end of the first link member 76 opposite to the connecting portion of the first link member 76 with the girder member 66 also rotates upward with the girder member 66 as the center. By rotating upward of the first link member 76, the first rotor 27b can be raised upward through the second link member 77 and the spring 78. When the first rotor 27b is moved upward, the second rotor 27a is also simultaneously moved upward through the first drive shaft 70b and the second drive shaft 70a.

Moreover, since the up-down position adjustment lever 81 is provided in the substantially center part of the traveling vehicle 2, it is easy to balance left and right when carrying out the up-down movement of the 1st rotor 27b and the 2nd rotor 27a. .

In addition, since the rotor support frame 68 moves upward in the rotation in the arrow T direction (FIG. 3) of the support arm 67, the first rotor 27b and the second rotor 27a are stored in the storage position, that is, the base material. It can be moved so that a storage state may be in the back side of the base 51. FIG.

In the present embodiment, the first rotor 27b and the second rotor 27a, which are at a height of 40 mm from the surface at the standard position of the vertical position adjustment lever 81, are rotated in the direction of arrow S in FIG. 15 mm can be made high, and it is set so that it may be made to be 15 mm lower than a standard position in rotation to the opposite direction of the arrow S direction of FIG.

As shown in Fig. 4, the second side stop rotors 27a1 and 27a1, which are the plurality of outer stop rotors on both the left and right sides, are supported by the second side drive shafts 70a1 and 70a1, which serve as rotor extension drive shafts extending in the left and right directions. The second side drive shafts 70a1 and 70a1 are detachably mounted to the second drive shafts 70a and 70a on the central portion side, and are mounted on the second side drive shafts 70a1 and 70a1. It is the structure which can remove 27a1 and 27a1.

According to the above configuration, when the mother implanter is stored in the warehouse or when the truck is loaded, the first and second lateral drive shafts 70a1 and 70a1 mounted at the outermost sides of the right and left ends and the second lateral drive shafts 70a1 and 70a1 are mounted. The two side stop rotors 27a1 and 27a1 can be collectively removed and the gas left and right widths can be reduced.

Further, when the mother transplanter is advanced, when the mud and water or the like accumulated in front of the first rotor 27b and the second rotor 27a flows to push the adjacent transplant hairs from the outside of both ends, the second transplanters at the left and right ends The second side stop rotors 27a1 and 27a1 at both ends mounted on the side drive shafts 70a1 and 70a1 and the second side drive shafts 70a1 and 70a1 are removed, and the left and right widths of the body are reduced, and the left and right inner rotors are reduced. By separating the distance from the adjacent transplantation simulations 27a and 27a, the flow of mud by the first rotor 27b and the second rotor 27a can be adjusted so as not to affect the wool.

Fig. 7 is a developed cross sectional view of the transplant clutch case 25 of the rice transplanter of the present embodiment. In the implantation clutch case 25 of FIG. 7, the weekly transmission device A which consists of the following structures is provided.

That is, power is transmitted to the input shaft 92 via the transmission shaft from the mission case 12 to the implant clutch 91. A large diameter first gear 95 and a middle diameter second gear 96, which are installed at an input shaft 92 at both ends of the implanted clutch case 25, which are supported by a rotating material, and which are integrally disposed in parallel positions, slide together. A spline is engaged with the input shaft 92 by a material, and the 3rd gear 97 of a small diameter is regrettable about the input shaft 92. As shown in FIG. On the side surfaces of the second gear 96 and the third gear 97 that face each other, third clutch moisturizing 96a and fourth clutch moisturizing 97a that engage with each other are provided. In addition, the fourth gear 99 and the first eccentric gear 100 are fixed to the input side of the input shaft 92.

Moreover, the output shaft 101 is arrange | positioned in the position parallel to the input shaft 92, One end thereof is connected so that latching is possible to the implant clutch support shaft 91a mentioned later, and the said implant clutch support shaft 91a is transplanted. It connects to the mother implant part 4 (FIG. 1) through the 2nd material joint 103 provided through the clutch case 25, and installed outside.

The output shaft 101 includes a fifth gear 104 which is always engaged with the fourth gear 99 of the input shaft 92 and a seventh gear 108 having an intermediate diameter integral with the sixth gear 105 of small diameter. ) And a large diameter eighth gear 109 are provided, and the sixth gear 105, the seventh gear 108, and the eighth gear 109 are regrettable on the output shaft 101. On the input end side of the output shaft 101, the inconstant speed switching clutch 110 is splined and the second clutch eccentric is always engaged with the first eccentric gear 100 of the input shaft 92 on the implant clutch case 25 side. The gear 112 is sorry. The 1st eccentric gear 100 and the 2nd eccentric gear 112 comprise the inconstant speed transmission mechanism.

The sixth clutch moisturizing 110a and the seventh clutch moisturizing 110b are provided on both side surfaces of the inconstant speed switching clutch 110, and the sixth clutch moisturizing 10a is provided on the output shaft 101. When engaged with the fifth clutch moisturizing 104a of the fifth gear 104, the sixth gear 105, the seventh gear 108, and the eighth gear 109 integral with the fifth gear 104 of the output shaft 101. ), The driving force input from the input shaft 92 is output to the mother implantation unit 4 via the inconstant speed switching clutch 110. In addition, the seventh clutch moisturizing 110b on the other side of the inconstant speed shift clutch 110 is installed so as to be able to engage the clutch moisturizing (not shown) of the second eccentric gear 112 that is splined to the output shaft 101. have. When the clutch moisturizing of the seventh clutch moisturizing 110b of the inconstant speed shift clutch 110 and the second eccentric gear 112 is held, the output shaft 101 and the implanted clutch support shaft 91a are at an inconstant speed at the input shaft 92. The power transmission is performed to the mother transplant apparatus 52 of the mother implant part 4.

In addition, the weekly shift shifter 115 is installed at a position parallel to the input shaft 92, and a cylindrical air gap 25a which is movable in a direction parallel to the input shaft 92 is installed in the implanted clutch case 25. It is. The weekly shift shifter 115 includes four first concave grooves 115a, a second concave groove 115b, and a third concave groove 115c corresponding to the high speed side from the low speed side in order from the shifter operating end side. The fourth concave groove 115d is disposed adjacent to each other, and communicates with the movable cylindrical gap 25a of the weekly shift shifter 115, and is provided in a direction orthogonal to the cylindrical gap 25a. Since the ball 116 and the 3rd spring 117 which add the ball 116 to the axial center side of the weekly shift shifter 115 are provided in the cylindrical part of the wall surface of the implanted clutch case 25, the said If the sphere 116 is inserted halfway into the first concave groove 115a of the weekly shift shifter 115, the weekly shift shifter 115 cannot move, and the sphere 116 and the third spring 117 Pressing and pulling the weekly shift shifter 115 with a force that overcomes the force, the other concave of the weekly shift shifter 115 The sphere 116 is half-inserted into any one of the second recessed groove 115b, the third recessed groove 115c, and the fourth recessed groove 115d, and the weekly shift shifter 115 is stored therein. The structure is maintained.

In addition, the plate 115e adhered to the weekly shift shifter 115 between the first gear 95 and the second gear 96 having a middle diameter, which are integral with each other in a parallel position, receptive to the input shaft 92. Since this lock is carried out, the 1st gear 95 and the 2nd gear (which are spline-engaged with the input shaft 92 by the board 115e by moving the weekly shift shifter 115 back and forth based on the gas traveling direction) 96 is integrally movable in the left-right direction.

The inconstant speed change clutch 110 is a sliding material in the direction of arrow (i) or (ro) of FIG. 7 in the inconstant speed change control tool 119 provided on the outer side of the implanted clutch case 25.

In addition, an implant clutch 91 is provided in the implant clutch case 25 on the output end side of the output shaft 101, and an implant clutch of the implant clutch 91 whose one end is supported on the inner wall of the implant clutch case 25 is provided. The 2nd spring 91b which adds the support shaft 91a to the center side of the implantation clutch case 25 always adds the implantation clutch 91 to it. Moreover, the edge part of the case center side of the implantation clutch 91 has the structure which can be latched by the 1st clutch humidity retention 91c and the 2nd clutch humidity retention 101a mutually with the output edge part of the output shaft 101. As shown in FIG. In addition, on the outer circumferential portion of the implantation clutch 91, the implantation clutch 91 is moved toward the output end side of the implantation clutch case 25 by overcoming the force of the second spring 91b by the pressing force of the implantation clutch pin 91d. Since the inclined wall 91e in the inclination direction is provided with respect to the direction of the output shaft 101, the implantation clutch 91 of the implant clutch 91 with the second clutch moisturizing 101a of the output end of the output shaft 101 is provided. It is the structure which releases the latch of one clutch moisture retention 91c.

The following weekly shifting is enabled by the motorized configuration of the weekly transmission A having the above configuration. First, the pressing force of the implant clutch 91 by the implant clutch pin 91d is released, and the implant clutch 91 is locked to the output shaft 101 by the force of the second spring 91b.

Next, the sixth clutch moisturizing 110a of the inconstant speed shift clutch 110 and the fifth clutch moisturizing 104a of the side surface of the fifth gear 104 on the output shaft 101 are held to hold the weekly shift shifter 115. When the inconstant speed switching operating tool 119 moves the shifter 121 to the arrow (ro) side when the sphere 116 enters the state into the first concave groove 115a on the fastest side of the city, the input shaft 92 When the first gear 95 on the) and the sixth gear 105 on the output shaft 101 are engaged with each other, the implant clutch (via the output shaft 101 through the sixth gear 105 and the inconstant speed switching clutch 110) 91) the fastest transmission of power.

In addition, when the shifter 121 is sent to the arrow (ro) side by the inconstant speed changeover operation tool 119, the second concave groove next to the first concave groove 115a of the fastest speed shifter 115 shown in FIG. When the sphere 116 is in the state entered into 115b, the second gear 96 on the input shaft 92 and the seventh gear 108 on the output shaft 101 are engaged with each other in the slide in the right direction of the plate 115e. The power is transmitted from the inconstant speed switching clutch 110 via the output shaft 101 to the implant clutch 91 at the second highest speed.

In addition, when the inconstant speed shift operation tool 119 is sending the shifter 121 to the arrow (ro) side, the third concave groove 115c of the third concave groove 115a shown by the weekly shift shifter 115 is shown. If the sphere 116 is in the state, the third clutch moisture retention 96a of the second gear 96 and the fourth clutch moisture retention 97a of the third gear 97 on the input shaft 92 are locked. The third gear 97 and the eighth gear 109 on the output shaft 101 are meshed with each other to engage the seventh gear 108, the sixth gear 105, the fifth gear 104, and the inconstant speed shift clutch 110. The third high speed power transmission is performed to the implant clutch 91 via the output shaft 101 via the output shaft 101.

In addition, the inconstant speed switching operation tool 119 moves the shifter 121 to the arrow side, and the state shift shifter 115 enters the sphere 116 into the fourth concave groove 115d at the lowest speed in the city. Move to the third gear 97 on the input shaft 92 and the eighth gear 109 on the output shaft 101, and also the fifth gear 104 on the output shaft 101 and the fifth on the input shaft 92. The fourth gear 99 and the first eccentric gear 100 on the input shaft 92 and the second eccentric gear 112 and the second eccentric gear 112 on the output shaft 101, From the inconstant speed change clutch 110, the lowest speed power transmission of the implanted clutch 91 is performed via the output shaft 101 which rotates integrally with the inconstant speed change clutch 110. As shown in FIG.

Since the mother transplant apparatus 52 engages with the 1st eccentric gear 100 and the 2nd eccentric gear 112 mutually, the operation speed becomes slow at the time of other operations compared with when planting, and it performs inconstant motion.

In general, for example, when daytime is set in a relatively small tree, the seedlings are planted in a state of inconstant velocity, and thus, the pulsation clutch 91 pulsates, and particularly, when advanced at high speed, the pulsation tends to increase.

So, in this embodiment, as shown to the side view of FIG. 8A and the perspective view of FIG. 8B, the weekly lever 123 arrange | positioned at the right side of the seat 31 of a base body is rotated center 123d. By operating in the direction of arrow C as a point to move to the side that widens the daytime, the daytime lever 123 and the arm 123a move the weekly shift shifter 115 shown in FIG. 7 to an appropriate position (see FIG. 7). The sphere 116 enters into the fourth recessed groove 115d) and is set at the operating position of the implant clutch 91, and at the same time, the front end of the vehicle speed regulating arm 123b, which is integral with the daytime lever 123, is provided. By contacting one end of the basic portion of the shift lever 124 to set the speed change area of the traveling transmission device, the fluctuation around the swing shaft 124a of the shift lever 124 is restricted to limit the vehicle speed and stabilize the simulation. .

In addition, the speed stage set by the hydraulic continuously variable speed transmission device 23 which is a speed change device by the shift lever 124 is a part which manually selects either of the speed change stages of the sub transmission device which shifts to either of the high, middle, and low stages. When the shift lever 125 (refer to FIG. 9) is operated to shift from the shift stage of the work speed used for mock transplantation to the shift speed which is the shift stage at the time of roadbed driving, a configuration capable of releasing the vehicle speed regulation is adopted.

Although FIG. 9 shows the structure for this, when the sub transmission lever 125 is operated in the arrow D direction of FIG. 9 to shift from the implantation speed to the movement speed, the vehicle speed provided in the daytime lever 123 via the wire 126 is shown. The moving arm M of the shift lever 124 shown in FIG. 8 is moved by the regulation arm 123b in the direction of arrow B (FIGS. 8 and 9) about the rotational shaft 123e. We can cancel vehicle speed regulation by deflecting from side to side).

As shown in FIG. 8, one end of the pivot shaft 123e is supported by the protrusion 123f protruding from the base of the weekly lever 123, and the pivot shaft supporting portion integral with the vehicle speed regulating arm 123b. Even if it pulls by the wire 126, it supports to a rotating material, adding to return to the state shown in FIG. 8 (b) by the spring which is not shown in figure.

Although the base material base 51 is provided with the belt feed shaft 60 (drive shaft of the pulley 64) of the one-way clutch part, in order to move the wool feed belt 51b toward the paddy direction, the base material is shown in FIG. As the main part side view of the base 51 is shown, the belt feed shaft 60 which moves the feed belt 51b is linked by the link mechanism to the feed counter shaft 62 arrange | positioned adjacently. That is, the base of the counter arm 62a is fixed to the feed counter shaft 62, one end of the feed arm 60b made of a rotating material is connected to the distal end of the counter arm 62a, and the feed arm ( At the other end of 60b), a sending shaft piece 60a fixed to the belt sending shaft 60 is connected to the rotating material. Moreover, the stop dead center prevention stopper 63 is arrange | positioned in the vicinity of the transfer counter shaft 62 so that the counter arm 62a may not exceed dead point in connection with the mother arm 60b. Therefore, the belt sending shaft 60 can be moved in the swinging range (arrow F) through the feeding arm 60b while the swinging range (arrow E) of the feed shaft counter shaft 62 is not exceeded the dead point. (Swinging angle of arrow E <swinging angle of arrow F).

In the above configuration, since the swing range of the feed counter shaft 62 is restricted to a range not exceeding the dead point, the swing mechanism of the belt feed shaft 60 is increased in the small space by preventing the excess dead point from being exceeded. You can get a large amount of send. Conventionally, in order to set the fluctuation range which prevents exceeding dead point without a stopper, the link mechanism itself had to be enlarged.

Moreover, as shown in the perspective view of FIG. 11, the one-way clutch of the belt feed shaft 60 is provided with the spring 60c which provides the biasing force for returning to the arrow C direction of the belt feed shaft 60, and sends a belt. There is an effect of easily returning the shaft 60 to its original position.

Power is transmitted to the mother implanter 52 through a drive chain 47 shown in FIG. 12 from a drive unit not shown in the transmission case 50, but the drive chain 47 is a plate supported by the transmission case 50. The spring 48 can adjust the twisting state of the drive chain 47.

At the same time, the drive spring 47 is brought into contact with the leaf spring 48 by contacting the distal end of the bolt 49 that can be inserted into and removed from the outside of the transmission case 50 in a direction perpendicular to the drive chain 47. ) Can be adjusted.

In this way, by holding the drive chain 47 with the bolt 49 in an appropriate tension state, unnecessary loosening of the drive chain 47 can be prevented, and the operation of the parent implant device 52 can be prevented. It can improve the pulsation.

Moreover, as shown in FIG. 13, the front end of the bolt 49 which can be inserted and detached in the direction orthogonal to the drive chain 47 from the exterior of the transmission case 50 to the inside is provided, and the lock nut 45 is for fixing a bolt. It is good also as a structure which penetrates the hole of and closes with the cap 45a.

In addition, as shown in FIG. 14, the fuel tank 28 may be attached to the front of the body, and a member that serves as the fuel tank guide 2a and the lifting and lowering step 2b may be provided in the bumper on the front surface of the body. By adopting such a configuration, it is possible to achieve a down cost and a design effect of equipment cost. In addition, the fuel supply port 28a of the fuel tank 28 can be protected by the fuel tank guide 2a.

In addition, the height of the lifting assisting step 2b provided in the fuel tank guide 2a includes a public reference height such as safety assessment, and a fuel supply port 28a (pipe line) of the fuel tank 28. By installing between the lowest height positions of the c), it is possible to clear the public reference height such as safety appraisal and the like, and to prevent the fuel supply port 28a of the fuel tank 28 from being damaged.

According to the present invention, a functional mother implanter can be obtained which can improve transplant accuracy even when the day is wide.

1 is a side view of a riding type rice transplanter.

2 is a plan view of a riding type rice transplanter.

3 is a side view of the main part of the parent implant.

4 is a rear view of the main part of the supporting structure of the base material stage.

5 is a plan view of the main part of the parent implant.

6 is a view for explaining the locking relationship between the up and down position adjustment lever of the rotor and the girder member.

7 is a developed cross-sectional view of the implanted clutch case.

Fig. 8 is a side view (Fig. 8 (a)) and a perspective view (Fig. 8 (b)) of the attachment portion of the main lever and the shift lever.

9 is a diagram illustrating a linkage relationship between the sub transmission lever and the vehicle speed regulating arm.

It is a side view of the principal part of the base material base vicinity.

It is explanatory drawing of the installation structure of a one-way clutch.

It is a figure which shows the attachment structure of the chain and the bolt in the transmission case of a mother implant part.

It is a figure which shows the installation structure of the chain and the bolt in the transmission case of a mother implant part.

14 is a side view (FIG. 14A) of the fuel tank and its guide member portion, and a perspective view (FIG. 14B) of the guide member.

<Description of symbols for main parts of the drawings

1. Passenger rice transplanter 2. Driving body

20. Engine 100. First eccentric gear

112. Second eccentric gear 123. Weekly lever

123b. Vehicle speed control arm 124. Shift lever

A. Weekly Transmission

Claims (1)

A traveling body 2, an engine 20 mounted on the traveling body 2, a transmission 23 for shifting power from the engine 20 to change the traveling speed of the traveling body 2; , A hair transplanter 4 having a gearshift lever 124 for changing the travel speed by operating the speed shifter 23 and a hair transplanter 52 for transplanting hair into rice fields, is connected to the rear of the travel vehicle body 2. In a single graft, A weekly transmission (A) for changing the simulation implant interval, An inconstant speed transmission mechanism (100, 112) for inconstant speed transmission of the operation speed of the mother transplant apparatus 52 with respect to the traveling speed so as to be quick when the mother implant apparatus 52 transplants the rice paddies; A weekly lever 123 for shifting the weekly transmission device A; A mother implanter comprising a regulating device (123b) for regulating shifting to the high speed side of the shift lever (124) when operating to the side for setting the daytime by the weekly lever (123) widely.

Images