JP3532697B2 - Transplant machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter. 2. Description of the Related Art Conventionally, as an embodiment of a transplanting machine, there is provided a traveling section and a transplanting function section mounted on the traveling section, and the traveling section has a pair of left and right idler wheels on the front side. On the other hand, there is a type in which a pair of left and right drive wheels are mounted on the rear side. [0003] When the seedling transplanting operation is performed, the running portion is run along the transplanting ridge so as to straddle the transplanting ridge, and the transplanted seedling is transplanted onto the transplanting ridge by the transplanting function portion. I have. [0004] However, the above-described transplanter still has the following problems. [0005] Since the treads of the left and right idler wheels and the drive wheels are constant, if the lateral width of the transplant ridge is large, the traveling portion cannot run over the transplant ridge. However, if the tread of the traveling section is designed to be large, the transplanter itself cannot be compactly loaded on a truck or the like, and the transportation efficiency when transporting such a transplanter is deteriorated. A large storage space is required, and the storage property deteriorates. [0006] Since the idler wheels and the drive wheels cannot be adjusted in the vertical position, the height of the transplanting section cannot be set according to the height of the transplanting ridge or the transplanting depth of the transplanted seedlings. Seedling transplantation cannot be performed. As described above, since the vertical position of each idle wheel and each drive wheel cannot be adjusted, the idle wheel and the drive wheel cannot be stored compactly. Loading is not possible, transportation efficiency is poor, and storage is poor because a large space is required for storage in a hangar or the like. [0008] Accordingly, the present invention comprises a traveling section provided with a handle operation section, and a transplant function section mounted on the traveling section, wherein the traveling section is a traveling section. A pair of left and right idle wheels are mounted on the front of the frame via a floating wheel support arm so that the vertical swing position can be adjusted, and a pair of left and right drive wheels are adjusted on the rear part via a pair of left and right transmission cases. It can be freely mounted, and the idler wheel and drive wheel on either one of the left and right sides can be tread adjusted in the left and right width direction by tread adjusting means, and the tread adjusting means has one side end linked to the transmission case A transplanting machine provided with a tread adjuster that can expand and contract in the left-right width direction and a tread adjusting cylinder that operates to expand and contract the tread adjuster, wherein the transplant function unit is slid in the left-right width direction by slide position adjusting means. The position can be adjusted, and the slide position adjusting means includes:
A sliding action arm that slides the transplant function section in the left-right width direction, and a slide position adjusting cylinder that swings the sliding action arm right and left are provided, and a hydraulic circuit is provided with the tread adjusting cylinder and the slide position adjusting cylinder. Switching valves for selectively switching the oil passage between the tread adjusting cylinder and the slide position adjusting cylinder in the same hydraulic circuit, and the expansion and contraction operation of each cylinder on the upstream side of the switching valve An operation valve for performing an operation, wherein the switching valve is switchable by a switching lever, and the operation valve is switchable by an operation lever, and these levers are attached to the handle operation unit. The present invention provides a transplanter characterized by the following. Embodiments of the present invention will be described below with reference to the drawings. A shown in FIG. 1 is a transplanter according to the present invention. In the transplanter A, a transplant function unit 2 is placed on a self-propelled traveling unit 1 by a slide position adjusting means 3 in a lateral width direction. It is mounted so that the slide position can be adjusted. First, the traveling section 1 will be described. As shown in FIGS. 1 and 2, the traveling section 1 has a pair of left and right idler wheels 5, 5 at a front portion of a traveling section frame 4, respectively. 6 and 6, and a pair of right and left drive wheels 7 and 7 are attached to the rear portion via transmission cases 8 and 8, respectively. The tread can be adjusted by sliding in the width direction, and the idler wheels 5, 5 on the left and right sides and the idler wheels 7, 7 can be vertically moved upward and downward by the vertical position adjusting means 19 so that the vertical position can be adjusted. . The traveling unit frame 4 includes a pair of left and right side frames 10, 11 extending in the front-rear direction, and an intermediate frame 12 disposed in a position closer to the right side between the two side frames 10, 11 and extending in the front-rear direction. A front slide rail 14 horizontally connected between the front ends of the frames 10, 11, 12 via front connection brackets 13a, 13b, 13c;
The rear slide bracket 16 is formed in a rectangular frame shape in a plan view from the rear slide rail 16 which is horizontally connected via rear connection brackets 15a, 15b and 15c between the rear ends of the rear connection brackets 0, 11, and 12. 15a,
Between 15b and 15c, there is a transmission shaft 17 extending in the width direction.
Is laid in a transverse penetration shape. A left arm support shaft 20 whose axis is oriented in the left-right width direction is rotatably mounted on the left front connection bracket 13a via a boss portion 21. An outer end of the left arm support shaft 20 is provided. The upper end of the idler wheel support arm 6 extending vertically is attached to the idler wheel support arm 6 so that the idler wheel support arm 6 can swing up and down, and the idler wheel 5 is mounted on the lower end of the idler wheel support arm 6. It is rotatably mounted via a shaft 22. On the left rear connecting bracket 15a, a cylindrical connecting body 23 whose axis is directed in the left-right width direction is rotatably mounted around its axis, and is vertically attached to the outer end of the cylindrical connecting body 23. The upper end of a power transmission case 8 is attached to the transmission case 8 so that the power transmission case 8 can swing up and down, and a drive wheel 7 is mounted to the lower end of the power transmission case 8 via a drive shaft 24. Between the right front connection bracket 13b and the middle front connection bracket 13c, a rotating cylinder 25 extending in the left-right width direction is rotatable about its axis via bosses 27,27. The right arm support shaft 26 extending in the left-right width direction is slidably inserted into the rotating tubular body 25, and the idler wheel support arm 6 extending in the vertical direction is inserted into the outer end of the right arm support 26. The upper end of the idler wheel support arm 6 is vertically swingable, and the idler wheel 5 is attached to the lower end of the idler wheel support arm 6 so as to roll freely via an idler shaft 22. . The rotating cylinder 25 has a plurality of pin insertion holes.
28 is formed with an interval in the axial direction, while a pin hole (not shown) is also formed in the right arm support shaft 26, and a fixing pin 29 is inserted into the pin insertion hole 28 and the pin hole that match up and down. do it,
By fixing the right arm support shaft 26 at a desired draw-out position, the tread of the idler wheel 5 attached to the right arm support shaft 26 can be adjusted. As shown in FIG. 3, between the right rear connection bracket 15b and the middle rear connection bracket 15c,
A pivotable / extendable cylinder 30 as a tread adjuster extending in the left-right width direction is rotatably mounted around its axis via boss portions 31, 31. Parts 31,3
An outer cylinder 32 rotatably mounted between the outer cylinder 32 and the outer cylinder 32
Slidably inserted in the left and right width direction, and the outer cylindrical body 32
And an upper end of a transmission case 8 extending vertically and attached to an outer end of the inner cylinder 33 so that the transmission case 8 can swing up and down. The drive wheel 7 is mounted on the lower end of the transmission case 8 by the drive shaft 24.
Mounting via. 36 is a rotation restricting piece. Here, the above-mentioned transmission shaft 17 is shown in FIG.
As shown in FIG. 3, the left end is inserted into the cylindrical connecting member 23 to be interlocked with the drive shaft 24 in the left transmission case 8, while the right end 17 a is provided with the slide cylindrical shaft 17 b. Are spline-fitted, and these are inserted into the rotating / expandable cylindrical body 30, and the drive shaft is connected to the slide cylindrical shaft 17b in the right transmission case 8.
The transmission shaft 17 is connected to an engine E provided in the transplanting function section 2 at a halfway portion thereof, so that the left and right driving wheels 7 can be driven. 34 is a splot, 35 is a transmission chain, and 98 and 99 are side clutches. In this way, even when the right drive wheel 7 is tread-adjusted in the left-right width direction, the slide cylindrical shaft 17b is always spline-fitted to the right end 17a of the transmission shaft 17 while sliding in the left-right width direction. In addition, the right driving wheel 7 can be driven by maintaining the interlocking connection state. Next, the tread adjusting means 18 will be described. As shown in FIGS. 2 and 3, the tread adjusting means 18 includes a tread adjusting cylinder
The tread adjustment cylinder 40
The base end is connected to the front part of the outer peripheral surface of the outer cylindrical body 32 of the rotating / expandable cylindrical body 30 via the connecting bracket 41, while the inner cylindrical body is
The front end of the piston rod 40a is connected to the front part of the outer peripheral surface of 33 via a connection bracket. Thus, the tread adjusting cylinder
The inner cylinder 33 of the rotating / expandable cylinder 30 is extended / retracted in the left-right width direction in conjunction with the extension / retraction operation of the piston rod 40a, and the right side is connected to the tip of the inner cylinder 33 via the transmission case 8. The sliding position of the drive wheel 7 is adjusted in the left-right width direction so that the tread between the left and right drive wheels 7 can be adjusted. In addition, when the vertical positions of the idler wheels 5, 5 and the driving wheels 7, 7 are adjusted by the vertical position adjusting means 19 described later,
The transmission case 8 supporting the right drive wheel 7 and the pivotable telescopic cylinder 30 connected to the transmission case 8 are integrally pivoted about the axis of the pivotable telescopic cylinder 30. So that
The piston rod 40a of the tread adjusting cylinder 40 always pushes and pulls a predetermined position of the transmission case 8 via the connecting bracket 42, that is, a position where the transmission case 8 can be slid most efficiently in the left-right width direction. As a result, the tread position can be adjusted smoothly and reliably. Next, the vertical position adjusting means 19 will be described. As shown in FIGS. 2 and 3, the vertical position adjusting means 19 includes a rear connecting bracket 15a,
Between 15b and 15c, an interlocking shaft 45 extending in the left and right width direction is positioned behind the rear slide rail 16 and is rotatably mounted horizontally, and a turning arm 46 is attached to the right side of the interlocking shaft 45, The tip of the piston rod 47a of the vertical position adjusting cylinder 47 is connected to the rotating arm 46,
The interlocking shaft 45 is rotatable in conjunction with the expansion and contraction operation of 47a, and left and right link mechanisms 48 and 49 are connected to the left end and right side of the interlocking shaft 45, respectively. The left link mechanism 48 has a left operating arm 50 projecting upward from the left end of the interlocking shaft 45.
And a left first interlocking arm 51 protruding above the tubular connecting body 23 and a left second interlocking arm 52 protruding above the left arm support shaft 20, respectively. The first link 53 and the left second link 54 are interlockingly connected to each other. The right link mechanism 49 includes an interlocking shaft.
A right operating arm 55 projecting upward from the right side of 45, a right first interlocking arm 56 projecting upward from the rotating / expandable tubular body 30, and a projecting projecting upward from the rotating tubular body 24. Right 2nd
The interlocking arm 57 is interlockingly connected via a first right link 58 and a second right link 59 extending in the front-rear direction, respectively. Thus, the vertical position adjusting cylinder
When the piston rod 47a of 47 is extended and retracted, the rotating arm 46 connected to the piston rod 47a → interlocking shaft 45
→ Left / right rotating arm 50,55 → Left / right first link 53,5
8 → left and right first interlocking arms 51 and 56 → tubular connecting body 23 and rotating / expandable tubular body 30 → left and right transmission cases 8, 8 → left and right driving wheels 7, 7 are moved up and down. And left and right operating arms 51 and 56 → Left and right second link 5
4,59 → Left / Right second interlocking arm 52,57 → Left arm support shaft 20 and rotating cylinder 24 → Left / Right idler wheel support arm 6,6
→ By allowing the left and right idle wheels 5,5 to be able to move up and down, the left and right idle wheels 5,5 and the left and right drive wheels 7,7 are integrally adjusted in the up and down position.
The height above the ground of the transplant function unit 2 described below mounted on the running unit frame 4 can be appropriately adjusted. Then, the left and right idle wheels 5, 5 and the left and right drive wheels 7, 7 are raised to the maximum and the traveling unit frame 4
By changing the attitude to the storage position close to, the aircraft can be made more compact in the vertical direction,
The position of the right driving wheel 8 is made closer to the right side frame 11 side of the traveling unit frame 4 by the tread adjusting means 18 and the position of the right idler wheel 5 is also made closer to the right side frame 11 side, so that the It is also possible to reduce the size in the left-right width direction, thereby increasing the transportation efficiency when transporting the transplanter A by loading it on a truck or the like, and reducing the storage space required when storing it in a hangar or the like. can do. Next, the transplant function unit 2 will be described.
As shown in FIG. 1 and FIG. 2, the transplanting function unit 2 has front and rear slide bodies 60 and 61 respectively mounted on the front slide rail 14 and the rear slide rail 16 so as to be slidable left and right. Functional part support frame 62 between bodies 60 and 61
The engine E is mounted on the front of the functional unit support frame 62.
And the hydraulic pump P, and at the rear thereof is positioned above the planting transmission case 63, and the transplanting part 64 is placed in the planting transmission case.
The seedling transfer section 65 is disposed in an interlocking connection with the planting transmission case 63 at the rear upper position of the transplanting section 64. The seedling transfer section 65 is configured to be able to transfer a seedling tray T having a plurality of pot seedling storage sections, and the transplanting section 64 is configured to transfer the seedling tray T transferred by the seedling transfer section 65. Take out the seedlings from the pot seedling storage area
And a transplanting nail 67 for receiving the potted seedling extracted by the same seedling extracting nail 66 and transplanting the potted seedling on the transplanting ridge. Reference numeral 68 denotes a multi-cutter that opens a transplant hole in the multi-film covered on the transplant ridge, and 69 denotes a cultivation ring that cultivates the pot seedling transplanted by the transplant nail 67. As shown in FIGS. 1 and 2, the front end of the handle frame 70 is attached to the rear end of the functional portion support frame 62 so that a middle portion of the handle frame 70 is located below the seedling transfer portion 65. Is detoured, rises behind the seedling transfer section 65, and the handle operation section 71 is provided at the upper end of the handle frame 70.
Is mounted so that the slide position can be freely adjusted in the width direction.
72 is the operating end side bar, 73 is the side clutch lever, 74 is the planting clutch lever, 75 is the vertical up / down position adjustment lever, 76 is the main traveling speed change lever, 77 is the slide position adjustment lever, 78 is the stock adjustment lever, 79 is A front stand 80 is a rear stand, and both stands 79 and 80 are capable of changing their posture between a use position suspended downward and a storage position flipped upward. Next, the slide position adjusting means 3 will be described. As shown in FIG. 2, the slide position adjusting means 3 attaches an arm support 85 to a front portion of the intermediate frame 12 and attaches the arm support 85 to the arm support 85. While the base end of the sliding action arm 86 is pivotally supported by a pivot pin 87 whose axis is oriented vertically, a connecting body 88 is attached to the right rear portion of the functional unit support frame 62 and extends in the front and rear direction on the connecting body 88. Forming a long hole 89,
A sliding lock pin 90 attached to the tip of the slide action arm 86 is slidably locked in the same elongated hole 89, and between the base end of the slide action arm 86 and the arm support 85. A slide position adjusting cylinder 91 is interposed. As described above, the piston rod 91a of the slide position adjusting cylinder 91 is extended and contracted, whereby the slide operation arm 86 is swung right and left around the pivot pin 87, and interlocked with the slide operation arm 86. The transplant function unit 2 can be slid in the left-right width direction, and the expansion / contraction operation of the piston rod 91a can be performed by the slide position adjusting lever 77 to adjust the slide position of the transplant function unit 2 to an arbitrary position. Like that. Therefore, by adjusting the sliding position of the transplanting function section 2 above the transplanting ridge, a plurality of rows of transplanted seedlings can be transplanted in the lateral direction on the transplanting ridge. By appropriately adjusting the sliding position of the 71 in the left-right width direction, the operator can easily operate the handle operation unit 71 while walking on the ridge. At this time, the load to be shared by the left and right wheels 5, 5, 7, and 7 is changed by adjusting the slide position of the transplanting function unit 2. However, by equalizing the shared load by adjusting the tread, the properness of the machine body is improved. The transplanting posture can be maintained, and the efficiency of the seedling transplanting operation can be improved. FIG. 4 is an explanatory diagram of hydraulic piping. In FIG. 4, a tread adjusting cylinder 40 and a slide position adjusting cylinder 91 are connected in parallel to a hydraulic pump P via a hydraulic circuit 92. A switching valve 93 for selectively switching the oil passage between the tread adjusting cylinder 40 and the slide position adjusting cylinder 91 is provided at 92, and the respective oil amounts on the supply side and the return side on the upstream side of the switching valve 93. Check valve 94 for controlling the pressure and each cylinder at the upstream side of the check valve 94.
An operation valve 95 for performing the expansion and contraction operation of 40, 91 is provided. The switching valve 93 can be switched by a switching lever 96, and the operating valve 94 can be switched by an operating lever 97.
7 is attached to the handle operation section 71 as shown in FIG. By switching the switching valve 93 with the switching lever 96 in this manner, the slide position adjustment of the transplant function section for the gap adjustment performed by operating the slide position adjustment cylinder 91 and the tread adjustment are performed. Cylinder
The tread adjustment of the traveling section 1 for the ridge adjustment performed by operating the fork 40 can be independently and simply and reliably performed as an initial setting operation in a field. Further, the switching lever 96 and the operation lever 97 are
Due to the attachment to the handle operation unit 71, the operator
The operating lever can be operated at a position farther than the operating unit of the traveling unit 1 or the transplanting function unit 2, so that the safety of the operator can be secured, and while the handle operating unit 71 is held by one hand, The operating lever 97 can be operated with the other hand, and during the seedling transplanting operation, the slide position can be adjusted and the tread can be adjusted as needed, thereby performing an efficient seedling transplanting operation adapted to the working conditions. be able to. The hydraulic circuit 92 further includes a check valve
Because of the provision of 94, even when a load acts on the tread adjusting cylinder 40 from the driving wheel 7, the hydraulic circuit 92 is in a hydraulically locked state, and the piston rod 40a of the tread adjusting cylinder 40 is extended and retracted. Therefore, the tread can be secured, and no separate fixing means such as tread fixing pins and bolts are required. According to the present invention, the following effects can be obtained. (1) In the present invention, the idler wheel and the drive wheel on either one of the left and right sides can be tread-adjustable in the left-right width direction by the tread adjusting means. The tread can be adjusted, so that the efficiency of seedling transplantation can be improved. Further, when the transplanter itself is loaded on a truck or the like and transported, by adjusting the tread to a minimum, the transplanter can be made compact and the transport efficiency can be improved. (2) In the present invention, since the left and right idler wheels and the drive wheels are each capable of adjusting the vertical swing position,
The ground height of the transplanting function part can be set according to the height of the transplanting ridge, the transplanting depth of the transplanted seedlings, and the like, so that an optimal seedling transplanting operation can be performed. (3) In the present invention, since the left and right idle wheels and the drive wheels can be adjusted in the vertical swing position as described in (2) above, the idle wheels and the drive wheels are respectively adjusted upward. Therefore, the transplanting machine can be compactly loaded on a truck or the like, and the transportation efficiency can be improved from this point as well. (4) In the present invention, the tread adjusting means includes:
Since the transmission case is provided with a tread adjusting body which is connected and linked to one side end of the transmission case and is capable of extending and contracting in the width direction, and a tread adjusting cylinder which operates the tread adjusting body to extend and contract, the tread adjusting cylinder is always The transmission case can be slid by pushing and pulling a predetermined position with respect to the transmission case, and by setting the most efficient position for sliding the transmission case, the tread position can be adjusted smoothly and reliably. Can be done. Moreover, in the present invention, the transplanting function section is capable of adjusting the sliding position in the left-right width direction by the slide position adjusting means, and the sliding position adjusting means includes a sliding action arm for slidingly moving the transplanting function section in the left-right width direction, A slide position adjusting cylinder for swinging the slide arm horizontally.
The tread adjusting cylinder and the slide position adjusting cylinder are connected in parallel via a hydraulic circuit, and the hydraulic circuit is switched to selectively switch the oil passage to the tread adjusting cylinder and the slide position adjusting cylinder. A valve and an operation valve for performing an expansion and contraction operation of each cylinder on the upstream side of the switching valve are provided, and the switching valve is switchable by a switching lever, and the operation valve is operated by an operation lever. These levers are attached to the handle operation unit so that switching operation is possible. In this way, by switching the switching valve by the switching lever, the slide position adjustment of the transplant function unit for the gap adjustment performed by operating the slide position adjustment cylinder and the tread adjustment cylinder are operated. The tread adjustment of the traveling section for the furrow adjustment to be performed can be independently and simply and reliably performed as an initial setting operation in a field. At this time, the switching lever and the operation lever
Since it is attached to the handle operation part, the operator can operate the operation lever at a position farther than the operating part of the traveling part and the transplantation function part, so that the safety of the operator can be secured and the handle operation can be performed. While holding the part with one hand, the operating lever can be operated with the other hand, even during the seedling transplanting operation, the slide position adjustment and tread adjustment can be performed as needed, adapting to the working conditions It is possible to perform efficient seedling transplantation work.

[Brief description of the drawings] FIG. 1 is a side view of a transplanter according to the present invention. FIG. 2 is an explanatory plan view of a traveling unit. FIG. 3 is a cross-sectional plan view of the tread adjusting means. FIG. 4 is a hydraulic circuit diagram. [Explanation of symbols] 1 Running section 2 Porting Function Department 3 slide position adjusting means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-284312 (JP, A) JP-A-2-303405 (JP, A) JP-A-7-16003 (JP, A) JP-A 9-204 154330 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 333

Claims (1)

(57) [Claims 1] A traveling section provided with a handle operation section, and a transplant function section mounted on the traveling section, wherein the traveling section is a front section of the traveling section frame. A pair of left and right idler wheels are mounted via a floating wheel support arm so that the vertical swing position can be adjusted, and a pair of left and right drive wheels are mounted on the rear portion via a pair of left and right transmission cases so that the vertical swing position can be adjusted. The idler wheel and drive wheel on either one of the left and right sides can be tread-adjustable in the left-right width direction by tread adjustment means. and telescopic tread adjusting member, a transplanter provided with a tread adjusting cylinder for telescoping actuating the same preparative <br/> Red adjustors, graft function unit, the lateral width direction by the slide positioning means
The transplant position can be adjusted in the horizontal direction by adjusting the slide position.
Sliding action arm that slides
Slider for adjusting the slide position that swings the
And a cylinder for adjusting the tread and a cylinder for adjusting the slide position.
And the hydraulic circuit are connected in parallel via a hydraulic circuit.
Tread adjustment cylinder and slide position adjustment syringe
A switching valve for selectively switching the oil passage to the
Perform the expansion / contraction operation of each cylinder upstream of the switching valve.
And a switching valve, which can be switched by a switching lever.
The operation valve is switched by the operation lever.
These levers to the handle operation section as
A transplanter characterized by being attached .