WO2005115125A1

WO2005115125A1 - Sulky rice transplanter

Info

Publication number: WO2005115125A1
Application number: PCT/JP2005/009335
Authority: WO
Inventors: Kouji Miyake
Original assignee: Yanmar Co., Ltd.
Priority date: 2004-05-25
Filing date: 2005-05-23
Publication date: 2005-12-08
Also published as: JP2005333839A; CN1956651B; JP4768233B2; CN1956651A

Abstract

A sulky rice transplanter capable of simultaneously and easily operating and stopping an overall fertilizer application part (all fertilizer applicators). In the sulky rice transplanter, a planting part is connected to the rear part of a traveling part and a fertilizer application part is mounted at the rear part of the traveling part. The fertilizer application part is disposed with the fertilizer applicators corresponding to planting rows positioned laterally adjacent to each other, fertilizer application delivery bodies fitted to the fertilizer applicators are connected to each other in association with each other through a delivery mechanism drive shaft extending in the lateral direction, and the delivery mechanism drive shaft is connected to the transmission case of the traveling part in association with each other through a fertilizer application part input shaft so that the fertilizer application delivery bodies can be operably delivered. A clutch body is installed at a connection part between the delivery mechanism drive shaft and the fertilizer application part input shaft so that the transmission of power from the fertilizer application part input shaft to the delivery mechanism drive shaft can be operably engaged and disengaged by the clutch body.

Description

Specification

Riding rice transplanter

Technical field

The present invention relates to a rice transplanter equipped with a fertilizer application section.

Background art

Conventionally, as one form of a riding rice transplanter, there is a type in which a planting section is connected to the rear of a traveling section and a fertilizer section is mounted at the rear of the traveling section (for example, see Patent Document 1). o

[0003] In such a riding rice transplanter, three unit clutch levers are disposed beside the driver's seat of the traveling unit, and one unit clutch lever is used for rotary planting of a two-row planting portion. The drive transmission of the device, the seedling feed belt, and the fertilizer application device of the fertilizer application section can be connected and disconnected.

[0004] In the above-described riding rice transplanter, the drive transmission of the rotary planting device of the planting portion for two rows, the seedling feed belt, and the fertilizer of the fertilizing portion is performed by one unit clutch lever. Because it is linked, if you only want to temporarily stop fertilization work, for example, if you want to stop all fertilizers when trial sending a seedling mat, or move from field to field If fertilization is not required depending on the field during the planting work, the clutches provided on the fertilizer feeding unit of each fertilizer are sequentially disconnected to stop all fertilizers. I have.

[0005] Further, when the fertilization work is restarted! / ヽ, the disconnected clutches are sequentially connected to operate all fertilizer application devices.

[0006] Thus, the work of disconnecting and connecting the power to all the fertilizer applicators is complicated.

Patent document 1: Japanese Patent Application Laid-Open No. 2002-347670

Disclosure of the invention

[0007] (1) In the first embodiment according to the present invention, in a riding rice transplanter having a planting section connected to the rear of the traveling section and a fertilizing section mounted on the rear section of the traveling section, the fertilizing section includes: Fertilizer applicators corresponding to the planting strips are arranged adjacent to each other in the left-right direction, and the fertilizer feeder provided in each fertilizer is linked and connected via a feed mechanism drive shaft that extends in the left-right direction. The drive shaft is linked to the transmission case of the traveling section via the fertilizer input shaft, enabling each fertilizer application body to be able to be operated, and a clutch body is provided at the connection between the feed mechanism drive shaft and the fertilizer input shaft. In addition, the clutch body allows the input shaft force of the fertilizer application section to be fed and the power transmission to the drive shaft to be connected and disconnected.

[0008] In this way, the power transmission to the input shaft force feeding mechanism drive shaft of the fertilizer application section can be connected and disconnected by the clutch body, so that the operation and stoppage of the entire fertilizer application section (all fertilizer application apparatuses) are performed. Can be performed simultaneously and easily.

[0009] (2) In the second embodiment according to the present invention, the clutch body is disposed in the vicinity of immediately behind the driver's seat provided in the traveling section.

[0010] In this way, the clutch body is disposed immediately behind the driver's seat provided in the traveling section, so that the operator sitting in the driver's seat only needs to reach out rearward in a half-body state. The clutch body can be operated without leaving the seat.

[0011] (3) In the third embodiment according to the present invention, the operation knob piece is provided on the clutch body, and the operation knob piece is rotated around the axis in the front-rear direction. I have.

[0012] In this manner, since the operation knob piece provided on the clutch body is rotated around the axis in the front-rear direction, the operator sitting in the driver's seat can move forward in a half-body state. If you reach for the power and reach the back of the knob, you can easily rotate it.

(4) In the fourth embodiment according to the present invention, the operation knob piece is disposed between the fertilizers adjacent to each other in the left-right direction, and the fertilizer applied to each fertilizer is provided in a side view. It is located behind the front of the hotspot.

[0014] In this manner, the operation knob piece is arranged between the fertilizers adjacent to each other in the left-right direction, and is arranged behind the front surface of the fertilizer hopper provided in each fertilizer in a side view. Therefore, when the operator supplies fertilizer to the fertilizer applying fertilizer, the operator's foot or the like hits the knob for operation, and the knob for operation is unexpectedly rotated. It is possible to prevent a defect such as damage to a piece.

[0015] On the other hand, the operator can perform the fertilizer replenishment work without worrying about the operation knob piece.

[0016] (5) In the fifth embodiment according to the present invention, the operation knob piece is an adjacent knob in the left-right direction. The fertilizer is placed between the fertilizers and is placed below the fertilizer hopper provided on one of the fertilizers in plan view.

[0017] In this way, the operation knob piece is disposed between the fertilizer applicators adjacent in the left-right direction, and in a plan view! Since the fertilizer is placed, even if the fertilizer falls off when the operator replenishes the fertilizer fertilizer, it is possible to prevent the fertilizer from acting on the operation knob piece, Corrosion around the operation knob piece due to adhesion or sticking of fertilizer can be prevented. As a result, the function of the operation knob piece can be satisfactorily ensured.

[0018] Further, since the operation knob piece can be arranged between the fertilizer application hoppers adjacent to each other in the left-right direction and can be arranged at a position that cannot be seen from the outside or from above, the operation knob piece can be used. The protection from external effects and the malfunction can be prevented.

Brief Description of Drawings

FIG. 1 is a side view of a riding rice transplanter according to the present invention.

FIG. 2 is a front view of a fertilizer application section.

[Figure 3] Side view of the fertilizer application section.

FIG. 4 is a front view of an operation knob piece.

FIG. 5 is a sectional front view of a transmission gear case.

FIG. 6 is an explanatory sectional plan view of the transmission gear case.

BEST MODE FOR CARRYING OUT THE INVENTION

A shown in FIG. 1 is a riding rice transplanter according to the present invention. The riding rice transplanter A connects a planting section 3 to a rear of a traveling section 1 via a lifting link mechanism 2 so as to be able to move up and down. At the same time, the fertilizer application section 4 is placed behind the traveling section 1.

[0021] In this manner, in the present embodiment, eight plantlets can be planted in the field by the planting unit 3, and fertilizer can be applied to the side of each of the eight plantlets planted by the fertilizing unit 4. Like that.

As shown in FIG. 1, the traveling unit 1 includes a motor unit 6 provided at a front part on a body frame 5, and a driving unit 7 provided at a position rearward of the motor unit 6. A transmission case 8 is provided in the middle of the transmission case, and a pair of left and right Front axle cases 9 and 9 are linked and connected, and front wheels 10 and 10 are linked to the lower end of each front axle case 9 and 9 via front axles 10a and 10a. The front end of the front and rear extension support case 11 is connected, the rear axle case 12 is connected to the rear end of the front and rear extension support case 11, and the rear axles 13a and 13a are connected to the lower left and right lower ends of the rear axle case 12. The rear wheels 13, 13 are interlocked and connected via the rear wheels.

A casing body 14 is stretched over the body frame 5, and the casing body 14 includes auxiliary step portion forming bodies 15, 15 arranged at left and right sides of the motor unit 6, and a motor unit 6, a main step portion forming body 16 disposed at a position behind the driver, a driver seat supporting portion forming member 17 disposed at a rear direction of the main step portion forming member 16, and a rear position of the driver seat supporting portion forming member 17. It is formed from the fertilizer application support body 18 arranged.

The driving section 7 is provided with a handle 20 at the upper end of a handle column 19 that covers the rear of the motor section 6, while placing the driver's seat 21 on the driver's seat supporting body forming body 17. ! / Puru.

As shown in FIG. 1, the lifting link mechanism 2 is provided between a rear frame formed body 25 of the body frame 5 of the traveling unit 1 and a front end of a planting mission case 26 of the planting unit 3 described below. , A lifting / lowering link body 27 extending in the front-rear direction is interposed, and a lifting / lowering hydraulic cylinder 28 is provided between the lifting / lowering link body 27 and the front / rear extension support case 11 to extend and retract the same. By doing so, the planting section 3 can be moved up and down.

[0026] As shown in Fig. 1, the planting section 3 is connected to the planting mission case 26 by interlocking the front ends of four planting cases 30, 30, 30, and 30 extending in the front-rear direction. A pair of left and right rotary cases 31, 31 are interlockedly connected to the rear end of the attached case 30, and a pair of planting claws 32, 32 are attached to each rotary case 31, so that the eight-row seedling planting operation can be performed. You.

[0027] Then, on the above-mentioned planting cases 30, 30, 30, 30, a seedling mounting table 33 capable of mounting seedling mats for eight lines is tilted forward through a seedling mounting support frame 34. The center float 35 and the side floats 36, 36 are arranged below the planting cases 30, 30, 30, 30, respectively.

As shown in FIGS. 1 and 2, the fertilizer application section 4 is disposed above the fertilizer application support body 18 and a fertilizer application support frame 39 is provided at the rear of the body frame 5. The eight fertilizers 40 are arranged side by side in the left-right direction, and air is supplied to each fertilizer 40 at the left end. A blower 41 for pumping is provided.

[0029] Each fertilizer applicator 40 has a fertilizer application body 42 attached to a fertilizer application section supporting machine frame 39, and a fertilizer application hopper 43 communicated with the upper end of the fertilizer application body 42. The base end of the fertilizer hose 44 is connected to the base via a connection pipe 45, and the distal end of the fertilizer hose 44 is placed on the side of each of the floats 35, 36, and 36 installed in the planting section 3. are doing

[0030] At the position immediately before each fertilizer feeding body 42, a compressed air supply pipe 46 extending in the left-right direction is provided, and the left end of the compressed air supply pipe 46 is connected to the blower 41. An intermediate portion of the air supply pipe 46 is connected to each of the connection pipes 45.

[0031] A fertilizer feeding mechanism (not shown) is provided in each fertilizer feeding body 42, and each fertilizer feeding mechanism should be integrally driven by a feeding mechanism drive shaft 47 extending in the left-right direction. The upper end of the fertilizer input shaft 49, which extends vertically in the center of the feed mechanism drive shaft 47, is interlocked with the upper end of the fertilizer input shaft 49 in an orthogonal state via a transmission gear case 48. The lower end is linked to the transmission case 8. Reference numeral 50 denotes a hose for discharging the residual fertilizer, which is connected to and connected to each fertilizer feeding body 42.

In this way, the power is transmitted from the prime mover unit 6 to the transmission case 8 → the fertilizer application unit input shaft 49 → the feed-out mechanism drive shaft 47, and the feed-out mechanism drive shaft 47 is rotated to rotate the feed mechanism. The dispensing mechanism can be extended and operated.

[0033] As a result, the fertilizer stored in the fertilizer hopper 43 can be fed out to the fertilizer hose 44 via the connection pipe 45 by the feeder mechanism, and the fertilizer fed to the fertilizer hose 44 is supplied to the blower 41 → compressed air supply. It is pumped to the planting section 3 together with the air pumped through the pipe 46 → the connecting pipe 45 and fertilized on the field.

Here, each feeding mechanism is provided with a fertilizing streak stopping clutch (not shown), and each feeding mechanism can be operated and stopped by connecting / disconnecting each fertilizing streaking clutch. I can do it.

[0035] Each of the fertilizing streak stopping clutches is connected to each other in the left-right direction via a unit clutch mechanism (not shown) in an interlocking manner, thereby forming four unit clutches (not shown). Is composed. Further, in the present embodiment, as shown in FIG. 2, the fertilizer application hoppers 43 of the fertilizer applicator 40 arranged side by side in the left-right direction have four lids on the left side which can be opened and closed by a single opening / closing lid body 51. At the same time, close the four right-hand sides with one open / close lid 52 so that they can be opened and closed freely.

In the above configuration, the gist of the present invention is that a clutch body 60 is provided at a connection portion between the feeding mechanism drive shaft 47 and the fertilizer application input shaft 49, and the clutch body 60 connects the fertilizer application input shaft 49 to the fertilizer application input shaft 49. The power transmission to the feeding mechanism drive shaft 47 can be connected and disconnected.

That is, the clutch body 60 is provided in the transmission gear case 48 provided at a connection portion between the feeding mechanism drive shaft 47 and the fertilizer application input shaft 49. For convenience of explanation, first, the transmission gear case 48 This will be described with reference to FIGS.

[0039] As shown in Figs. 5 and 6, the transmission gear case 48 is provided with a left bearing 62 provided on a left wall 61a of a case body 61 and a right bearing 63 provided on a right wall 61b. The central part of the feeding mechanism drive shaft 47 extending in the direction is rotatably supported in a penetrating state, and the input side bevel gear 64 is rotatably mounted on the center of the feeding mechanism drive shaft 47, The upper end of the fertilizer input shaft 49 is rotatably supported via a lower bearing 65 provided at the bottom of the case body 61, and an output bevel gear 66 is mounted on the upper end of the fertilizer input shaft 49. When attached, the output side bevel gear 66 is combined and connected to the input side bevel gear 64. Reference numeral 67 denotes a bearing that rotatably supports the input-side bevel gear 64.

As shown in FIGS. 5 and 6, the clutch body 60 has a plurality of engaged pieces 70 provided on the left end face of the input side bevel gear 64 so as to protrude leftward. A slide engagement member 71 is fitted via a key 69 so as to be slidable in the axial direction and non-rotatable in the circumferential direction, to the portion of the drive mechanism drive shaft 47 located on the left side of the bevel gear 64. A plurality of engagement pieces 72 are provided on the right end face of the slide engagement body 71 so as to protrude rightward, and a pressing spring is provided between the left end face of the slide engagement body 71 and the left wall 61a of the case body 61. 73 is wound around the outer periphery of the drive mechanism drive shaft 47 and interposed therebetween.

A slide pin engagement groove 74 is formed at the center of the slide engagement body 71, and the tip end of a slide pin 75 whose axis is oriented in the front-rear direction is engaged with the slide pin engagement groove 74. The central part of a vertically long operation knob 77 is attached to the front wall of the case body 61 via a rotation support shaft 76 whose axis is oriented in the front-rear direction. Base of slide pin 75 The ends are eccentrically connected in the front-rear direction. Reference numeral 77a denotes a tip-side directional portion of the operation knob 77, and reference numeral 78 denotes a nameplate of the operation knob 77.

In this way, as shown by the two-dot chain line in FIG. 5 and the solid line in FIG. 6, the operation knob 77 is turned around the rotation support shaft 76 whose axis is oriented in the front-rear direction. When the rotation is performed so that 77a faces upward, the slide pin 75 eccentrically connected to the rotation support shaft 76 moves to the right, and the slide pin engages with the tip of the slide pin 75. The slide engagement body 71 engaged through the groove 74 is slid rightward in cooperation with the elastic urging force of the pressing spring 73.

As a result, the plurality of engaging pieces 72 protruding from the right end face of the slide engaging body 71 engage with the plurality of engaged pieces 70 protruding from the left end face of the input-side bevel gear 64, The power connection state in which the turning power of the fertilizer input shaft 49 is transmitted to the output side bevel gear 66 → input side bevel gear 64 → engaged piece 70 → engaging piece 72 → slide engaging body 71 → feeding mechanism drive shaft 47 ( (Clutch engaged state).

Further, as shown by the dashed line in FIGS. 5 and 6, the operation knob piece 77 is arranged so that the distal end side directing portion 77a faces downward around the rotation support shaft 76 whose axis is oriented in the front-rear direction. When rotated 180 degrees, the slide pin 75 eccentrically connected to the rotation support shaft 76 moves to the left, and the slide pin engagement groove 74 The slide engagement body 71 engaged via the lever is slid leftward against the elastic biasing force of the pressing spring 73.

As a result, the plurality of engaging pieces 72 protruding from the right end face of the slide engaging body 71 are disengaged from the plurality of engaged pieces 70 protruding from the left end face of the input bevel gear 64. The fertilizer application part The rotation power of the input shaft 49 is transmitted to the output side bevel gear 66 → the input side bevel gear 64 → the engaged piece 70, but the engaging piece 72 → the slide engagement body 71 → the feeding mechanism drive shaft 47 If not transmitted, a power-off state (clutch-off state) can be achieved.

[0046] The clutch body 60 configured as described above is disposed immediately after and near the driver's seat 21 provided in the traveling section 1, and the operator sitting in the driver's seat 21 is in a half-body state. If the hand is extended rearward, the operation knob 77 is arranged at a position where it can be reached, and the operation knob 77 can be easily rotated around the front and rear axes. You.

[0047] The operating knob 77 is also disposed between the fourth fertilizer device 40 and the fifth fertilizer device 40 from the left side, which are adjacent to each other in the left-right direction in the center of the body. Here, as shown in FIG. 3 and FIG. 4, the fertilizer application hopper 43 is formed by gradually reducing the diameter of the lower part in a funnel shape, and the lower end part thereof is connected to the upper end part of the fertilizer feeding body 42 in communication therewith. A space S is formed between the fertilizer application body 42 of the fourth fertilizer device 40 from the left side and the fertilizer application body 42 of the fifth fertilizer device 40 from the left side.

[0049] Then, in the forceful space S, as shown in Fig. 3, the operation knob 77 has front faces 43a, 43a of the fertilizer hoppers 43, 43 provided in the respective fertilizers 40, 40 as viewed from the side. The fertilizer hopper 43 provided on one of the fertilizers 40 (the fifth fertilizer 40 from the left in the present embodiment) is located at a position rearward and in plan view! As shown in FIG. 4, the fertilizer application hopper 43 provided in the fifth fertilizer device 40 is disposed on the right side (closer to the fertilizer feeding body 42) than the virtual extension line L of the upper left side surface 43b of the fertilizer hopper 43.

[0050] In this way, the operation knob 77 is arranged in the space S formed between the fertilizers 40, 40 adjacent in the left-right direction, and the respective fertilizers 40, 40 are viewed from the side. Since the fertilizer application hoppers 43, 43 are located behind the front surfaces 43a, 43a of the fertilizer application hoppers 43, the operator's feet, etc., are used as operation knob pieces when the operator supplies fertilizer to the fertilizer application hopper 43. In this case, it is possible to prevent the occurrence of a problem that the operation knob 77 is unexpectedly rotated or the operation knob 77 is damaged or the like.

[0051] On the other hand, the operator can perform the fertilizer replenishment work without worrying about the operation knob 77.

[0052] The operating force is also provided by disposing the operation knob 77 in the space S formed between the fertilizers 40, 40 that are adjacent to each other in the left-right direction, and is provided on one fertilizer 40 in plan view. The fertilizer hopper 43 is located below the fertilizer hopper 43, so that when the operator replenishes the fertilizer hopper 43 with fertilizer or the like, even if the fertilizer spills out, the operation knob 77 does not receive any fertilizer. Thus, the function of the operation knob piece 77 can be satisfactorily secured.

Further, since the operation knob 77 is disposed between the fertilizer application hoppers 43 adjacent in the left-right direction, and is disposed at a position where the upward force is not visible from the outside, the same operation is performed. The handle piece 77 can be protected from external effects, and malfunction can be prevented.

Industrial applicability

[0054] In the structure of the riding rice transplanter according to the present invention, the fertilizer applicator corresponding to the planting streak is horizontally adjacent to the fertilizer applicator. The fertilizer feeder provided on each fertilizer is linked to each other via a feed mechanism drive shaft that extends in the left-right direction, and the feed mechanism drive shaft is connected to the travel unit via the fertilizer input shaft. It is useful for a structure having a fertilizer application section which is linked to a mission case and is capable of operating each fertilizer application body.

Claims

The scope of the claims

[1] In a riding rice transplanter with a planting section connected to the rear of the running section and a fertilizer section mounted on the rear of the running section,

In the fertilizer application section, fertilizer applicators corresponding to the planting strips are arranged adjacent to each other in the left-right direction, and the fertilizer feeder provided in each fertilizer applicator is linked and connected via a feed mechanism drive shaft that extends in the left-right direction. The feeding mechanism drive shaft is linked to the transmission case of the traveling section via the fertilizer input shaft, and each fertilizer feeder can be operated.

A clutch body is provided at the connection between the feed mechanism drive shaft and the fertilizer application input shaft, and the clutch body enables connection and disconnection of power transmission to the fertilizer application input shaft force feed mechanism drive shaft. Riding rice transplanter.

[2] The riding rice transplanter according to claim 1, wherein the clutch body is arranged in the vicinity of a position immediately behind a driver's seat arranged in the traveling section.

3. The riding rice transplanter according to claim 2, wherein an operation knob piece is provided on the clutch body, and the operation knob piece is rotated around an axis in the front-rear direction. .

[4] The operation knob piece is disposed between the fertilizers adjacent to each other in the left-right direction, and is disposed behind the front surface of the fertilizer hopper provided on each fertilizer in a side view. A riding rice transplanter according to item 3.

[5] The operation knob is disposed between the fertilizers adjacent to each other in the left-right direction, and is disposed below the fertilizer hopper provided on one of the fertilizers in plan view. The riding rice transplanter according to claim 3 or 4.