CN1038808C - Operational unit of clutch of moving paddy field machine - Google Patents

Abstract

To obtain a walking type rice transplanter, capable of simply operating a clutch for steering a machine body and a planting clutch and turning at the butt while arranging a place for starting the planting after the turning to a place for completing the planting before the turning. When clutches (CL) and (CR) for a machine body are operated to disconnection so as to turn and travel the machine body, a planting clutch (CU) is also disconnected by a connecting mechanism 24. The driving of a seedling planting part is stopped. At this time, a retaining mechanism 24 acts on the second connecting link 22. Even when the clutches (CL) and (CR) for steering the machine body are returned to the connection, the planting clutch (CU) is not returned to the connection. Thereby, the machine body can be subjected to straight advance to a place for starting the planting by self-advance after completing the turning. When the machine body attains the place for starting the planting, retaining by the retaining mechanism 24 is released by the operation of a retaining releasing lever, etc. As a result, seedlings can be planted by returning the planting clutch (CU) to the connection.

Description

The clutch operating structure of propelled type working in paddy field

The present invention relates to the clutch operating structure of propelled type working in paddy field, on the facility such as it can be used in the propelled type rice transplanter, the seed-sowing machine of pouring water.

In the flat 2-2175 of Japanese Utility Model communique, disclosed a kind of when farm work changes, only operating side clutch lever (Traction clutch bar) just can make the clutch of planting (operation clutch) also disconnect together the Traction clutch disconnection, can carry out manipulation operations easily, turn easily and take the clutch automatic pilot of planting in the propelled type rice transplanter that the edge of a field lateral area uses again less.

The disclosed prior art of above-mentioned communique, its serviceability are assert, but following such problem to be solved are wherein still arranged.

Promptly, in this prior art, after turning is finished voluntarily of body, in order to make body directly advance to move voluntarily side clutch (body turns to the example with clutch) is returned when connecting from disconnection, link mutually with this return, the clutch of planting (example of operation clutch) also returns connection from disconnection.And, carrying out the edge of a field when turning (body in the end, field is turned), make the travel distance of body, must be difficult no matter can both keep when turning in that place.Because these reasons, such problem will appear, that is and, the place that begins again of planting is with respect to the previous place of planting and ending, occurrence positions skew on the fore-and-aft direction of body easily.In order to make these two places can be consistent, must depress operation artificially and keep opening operation to arrive the place of planting and beginning again on the side clutch of the right and left, so that it is mobile that body can directly be advanced until body; And before body arrives the place that begins again of planting, make the clutch of planting to become connection.

Therefore, the object of the present invention is to provide a kind of propelled type working in paddy field, this propelled type working in paddy field can keep the advantage of the processing ease of its clutch on the one hand, the place that can make plants begins again is consistent with the previous place of ending of planting, and can carry out the edge of a field like a cork and turn.(in the following explanation, describing as an example) with the propelled type rice transplanter of an example of propelled type working in paddy field.

For realizing above-mentioned purpose, the invention provides a kind of clutch operating mechanism of propelled type working in paddy field, it has that body turns to the clutch of usefulness, the clutch operating body that turns to usefulness, operation clutch and the above-mentioned bindiny mechanism that turns to the clutch of usefulness, the clutch operating body that turns to usefulness and operation clutch to couple together, above-mentioned bindiny mechanism makes by the above-mentioned opening operation of the clutch operating body of usefulness that turns to and just will turn to the clutch of usefulness to disconnect, and also the operation clutch is disconnected; It is characterized in that, have and to set the primary importance and the second place, act on the mechanism that pins down in the above-mentioned bindiny mechanism, above-mentioned when pining down mechanism and being located at above-mentioned primary importance, by the above-mentioned making operation that turns to the clutch operating body of usefulness, utilize above-mentioned syndeton, allow above-mentioned turning to use the clutch making operation, the making operation that stops above-mentioned operation clutch simultaneously, above-mentioned when pining down mechanism and being located on the second place, by the above-mentioned making operation that turns to the clutch operating body of usefulness, utilize above-mentioned syndeton, allow above-mentioned turning to use the clutch making operation, allow above-mentioned operation clutch making operation simultaneously.

According to above-mentioned formation, when body arrives the edge of a field,, make any side clutch opening operation of the left and right sides by gripping any side clutch lever of the left and right sides (turn to and use the clutch operating body).So, make the also opening operation of clutch of planting by bindiny mechanism, under planting seedlings of the portion of planting moved the state that stops, body is turned voluntarily.At this moment, owing under the maintenance support of control handle, can operate the side clutch lever, can make the body in the turning utilize two hands to keep shakedown.When the turning of body was finished, when the side clutch lever that disconnects returns when connecting from disconnection always, the side clutch also returned connection accordingly.So body directly advances voluntarily.At this moment, be in the restraining function position owing to pin down mechanism, the clutch of planting can not return connection, and the driving of seedling-planting device keeps halted state.Body directly advance and arrive to turn again before plant during the ultimate position, pin down mechanism and begin to switch to pin down and remove the position, planting thus begins again.

In addition, pining down the releasing of mechanism, can be the manual type operating mechanism described in claim 2, also can be the self-action operating mechanism described in claim 3.

According to above-mentioned formation, support control handle with two hands, just can make the body of turning keep stable state.And, carry out in can be at any time owing to pin down the releasing of mechanism, and after turning is finished, can make body only directly advance distance arbitrarily, therefore just might be with arbitrarily the time chien shih clutch of planting return connection from disconnection.

In addition, disclosed prior art in real fair 2-2175 also has problem to be solved described below.

Promptly, handle that side is equipped with the value of the planting clutch lever of the clutch portions of planting in order to operation and the propelled type rice transplanter that constitutes in order to the left and right sides side clutch lever of two wheel side clutches about clutch is operated respectively in, make three arms parallel approaching, can prop up on rack section to independent rotation by the fulcrum pivot, these three arms are to be connected with hawser mid portion along with the clutch lever interlock of planting respectively.Therefore, fulcrum is the transverse axis of horizontal direction, and the plane of rotation of arm is a vertical plane, and the problem of disturbing mutually with at a slant the seedling platform that transplants seedlings is arranged.Thereby brachium must be shortened, and brachium shortens the amount of movement deficiency make hawser, the problem that has the operation that makes bar to require great effort more.In addition, three arms in above-mentioned automatic pilot all are to be contained on seedling carrying base (operation post) frame behind, because this frame is made box-shaped, thereby the problem that bothers very much with regard to the adjustment that has the hawser that links to each other with arm etc.

Therefore, another object of the present invention is that to make the interlock plate (interlock part) of the link gear that the operation that steering cluth disconnected with steering clutch lever disconnects the operation clutch in linkage be not on the vertical plane but swing on the inclined plane, thereby the length of the interlock plate that can extend, alleviate the operational ton of bar, and, even be contained on operation post (the planting the seedling platform) frame behind of oblique shape, to the suspension of hawser, adjust and add wet goods and also do not have obstacle.

In claim 1, on the basis of the formation of record, add the formation of record in the claim 4, just can realize above-mentioned another purpose.

According to above-mentioned formation, the operation part that propelled type working in paddy field shown in Figure 6 is operated on one side, carry out paddy-field-working on one side, when the edge of a field is turned, actuating element is mentioned, operate the steering clutch lever of that side of will turning simultaneously, at this moment, it is middle heart swing with fulcrum that hawser by first connecting elements shown in the pie graph 1～5 makes the interlock plate, by the hawser that the operation clutch that constitutes second connecting elements is used, the operation clutch is disconnected.

At this moment,, can not disturb yet, just need not increase the operational ton of bar even therefore be arranged on the behind of seedling carrying base owing to dispose across and on the inclined plane, swing as the bar length direction of the interlock plate of linkage component with the pole of tilting upward.

In addition, even the operation task clutch lever makes the swing of interlock plate, can connecting elements is failure to actuate by freeing part, the operation clutch lever just can be operated independently.

Below, with reference to accompanying drawing embodiments of the invention are described.

Fig. 1 is the major part plane outspread drawing of expression the present invention the 1st embodiment, is illustrated in operation state before.

Fig. 2 is that figure is carried out on the major part plane of expression the present invention the 1st embodiment, is illustrated in operation state afterwards.

Fig. 3 is the profile of expression major part.

Fig. 4 is the major part plane outspread drawing of expression the present invention the 2nd embodiment, is illustrated in operation state before.

Fig. 5 is the major part plane outspread drawing of expression the present invention the 2nd embodiment, is illustrated in operation state afterwards.

Fig. 6 is the whole side view of the propelled type working in paddy field of the expression embodiment of the invention.

Fig. 7 is the major part plane outspread drawing of expression the present invention the 3rd embodiment, is illustrated in operation state before.

Fig. 8 is the major part plane outspread drawing of expression the present invention the 4th embodiment, is illustrated in operation state before.

Fig. 9 is the whole side view of the propelled type working in paddy field of expression the present invention the 5th embodiment.

Figure 10 is the side view of the operating position of the steering cluth of expression the present invention the 5th embodiment and the clutch of planting.

Figure 11 is the rearview of the steering cluth operating position of expression the present invention the 5th embodiment.

Figure 12 be this bright the 5th embodiment of expression pin down mechanism and remove the plane of an example of structure.

Figure 13 is the plane of the brake structure of expression the present invention the 5th embodiment.

Figure 14 is the structure chart of another embodiment that pins down mechanism and releasing structure thereof of expression the present invention the 6th embodiment.

Figure 15 is the expression structure chart that pins down mechanism and remove another embodiment of structure of the present invention.

Accompanying drawing represents with the propelled type rice transplanter, but the present invention is also applicable to the propelled type seed-sowing machine of pouring water, fertilizer distributor etc.

Shown in Figure 6, the working in paddy field of representing with the propelled type rice transplanter 1, about traveling machine body 2, can be installed in tillage pan G by sidepiece transmission case 3R, 3L free lifting and go up driving wheel 4R, the 4L that rotates, installing the buoyancy aid 5 that on the face G1 of field, slides between wheel 4R, the 4L.

Traveling machine body 2 is connected to form by gearbox 8 and engine mount 7, and petrol engine 9 puts on engine mount 7, by scheming to go up the flexible gearing that does not have expression, is being connected in linkage with the speed change gear of job families with the walking series of 8 li of gearboxes.

The steering cluth that the walking series speed change gear that gearbox is 8 li has above-mentioned wheel to use, and the job families speed change gear has the operation clutch, by being supported on the power transmission shaft in the central transmission case 10 and the pawl 11 of planting, the operation part 13 that seedling carrying base 12 grades constitute links to each other in linkage.

Dispose actuating element 14 at the rear portion of traveling machine body 2, have as the operation of the operation clutch operating member of operation task clutch 15 from device bar 16 with as steering clutch lever 18L, the 18R of the steering cluth control member of steering cluth 17L, the 17R of operation left and right wheels 14 li of this actuating elements.This actuating element 14 is mainly by the pair of right and left pole 19 that erects obliquely to the back upper place from After-Body be erected at this regularly the handle 20 of regarding shape from the plane as that pole 19 erects on the end is constituted.In addition, see from the side, parallel before and after pair of right and left pole 19 and seedling carrying base 12 roughly are adapted to.

In the 1st embodiment shown in Fig. 1～3, the place is setting up connection support bar 21 in the middle of the bar length direction of pair of right and left pole 19, also setting up fulcrum 22 and the handle 20 of operating usefulness, thereby actuating element 14 forms frame structure in fact.In the middle of the bar length direction of pole 19 place be installed with fulcrum 23 be the center, the interlock plate 24 that on the inclined plane, back upper place, can freely swing.

A pair of steering clutch lever 18L, 18R can hold about the residence is configured at the left and right sides of handle 20 handle portion, between steering cluth 17L, the 17R of this a pair of bar 18L, 18R and left and right wheels, by the first connecting elements 25L, the 25R shown in the hawser, when holding bar, just make clutch disconnect the ground interlock and link to each other.

Central part on the left and right directions of actuating element 14 is installed with the maneuver box 26 that has guide channel, installing the operation clutch lever 16 that makes 15 connections of operation clutch, disconnection for 26 li side by side and main clutch 27 is connected at this maneuver box, main clutch bar 28 that disconnects and fixing relieving rod 29, the operation clutch 15 usefulness wherein clutch of planting is represented.

Operation clutch lever 16 with the formation of operation clutch 15 is: both are being connected in linkage by second connecting elements 30 shown in the hawser, and the operation by bar 16 makes clutch 15 connect, disconnect.

Main clutch 27 is connected by the 3rd connecting elements 31 shown in the hawser in linkage with main clutch bar 28, and the choke valve 33 of release lever 32 that handle partly sets and engine is connected in linkage by the 4th connecting elements shown in the hawser, makes it freely to increase and decrease the revolution of engine.

Middle part at the first connecting elements 25L, 25R is setting connector members 35L, 35R, longitudinally at this connector members 35L, 35R upper edge hawser forms slotted eye 36L, 36R, and be provided in up and down on the front end of interlock plate 24, outstanding being combined in a gap in conjunction with pin 24L, 24R freed in slotted eye 36L, the 36R on the interlock plate 24.

Second connecting elements 30 is connected with the mid portion of interlock plate 24 by pin 30A along the mid portion of its longitudinally, and the 4th connecting elements 34 passes through pin 34A along the mid portion of its longitudinally and is connected with the rear end of the plate 24 that links.

Near fulcrum 23 as interlock plate 24 swing fulcrums, setting with fulcrum 37 on pole 19 is the locking arm 38 that the center can freely swing, the effect of the spring member of being represented by helical spring 39 makes this locking arm 38 trend locking directions, promptly tend to be fixed on the plate 24 that links on the direction that combines of the pin 40 that is locked.And on this locking arm 38, form hook-shaped locking template part 38A.By such structure, when carrying out the rupturing operation of steering clutch lever 18L, 18R, because linkage component 24 rotates towards clockwise around fulcrum 23, lock on the locking arm 38 of direction so the above-mentioned pin 40 that is locked is maintained at trend, and stop linkage component 24 swings.Therefore, even carry out turning to dissengaged positions from opening, make steering cluth 17L, 17R to convert the operation of access state to device bar 18L, 18R, the dissengaged positions of operation clutch 15 is still kept, thereby constitutes a kind of mechanism that pins down of the access operation that pins down operation clutch 15.

Locking arm 38 links to each other with lock release bar 29 by the connector 41 that connecting rod, hawser etc. constitute again, therefore, by operating this lock release bar 29 locking arm 37 is removed the state that the pin 40 that is locked is keeping, thereby just can be by the action of operation clutch lever 16, carry out the access of operation clutch 15, the operation of cut-out.

Here, the K of bindiny mechanism has with above-mentioned pole 19 longitudinallies and disposes across, and the linkage component 24 that the energy free swaying ground supporting on the clinoplain that tilts toward the back upper place, with the connector members 35L that intersects with this linkage component 24 and disposing along pole 19 longitudinallies, 35R, wherein, link to each other with linkage component with the mid portion of second connecting elements 30 of operation clutch lever 16 connecting above-mentioned operation clutch 15, with above-mentioned steering clutch lever 18L, (another) first connecting elements 25L that 18R links to each other respectively, the mid portion of 25R and connector members 35L, 35R links to each other.And above-mentioned linkage component 24 and connector members 35L, 35R are also setting the J of bindiny mechanism, the J of this bindiny mechanism have operation task clutch lever 16 alone free part 36L, 36R and when steering clutch lever 18L, 18R along about steering cluth 17L, the operation of 17R cutting direction, operation clutch 15 cut bound fraction 24L, 24R.

Therefore in the frame H that constitutes frame structure by pole 19 grades, Space H 1 is being set, just can be easily each connecting elements 25R, 25L, 30,31,34 spring adjustment member 42 is being adjusted and added wet goods, and the chance minimizing that mud is adhered to.

Thereby, when adopting this 1st embodiment, when headland turn, actuating element 14 is mentioned, operate that side lever that will turn among steering clutch lever 18L, the 18R simultaneously, a clutch among steering cluth 17L, the 17R is disconnected, make one among wheel 3L, the 3R to stop to drive and another continuation driving.

Link plate 24 by combining one combination among pin 24A, the 24B with the linkage component one that the rupturing operation of this bar links, be a spot wobble with fulcrum 23, along with, operation clutch 15 is by pin 30A, by 30 effects of second connecting elements, to the interlock of clutch cutting direction, the power cut that passes to operation part 13.On the other hand, the choke valve 33 of engine 9 is by pin 34A, by the effect of the 4th connecting elements 34, to the direction interlock that reduces engine speed.

In addition, this interlock style is the effect by spring 39, and locking template part 38A is joined with the pin 40 that is locked, and is keeping as illustrated in fig. 2.Therefore just can automatically disconnect operation clutch 15 by rupturing operation, engine revolution is reduced, can turn easily and trippingly steering clutch lever 18L, 18R.

After the turning,, interlock plate 24 can be freely swung, make the operation clutch lever 16 can be in hole 36L, the 36R scope simultaneously by oneself the 15 access/disconnections of operation clutch freeing of connecting elements 35L, 35R by the effect of lock release bar 29.

Fig. 4 and Fig. 5 represent the 2nd embodiment of the present invention, because basic structure and to act on being identical, thereby identical part all uses identical symbolic representation, below, different parts is illustrated.

Have on any one side in the connecting elements 35L, the 35R that free hole 36L, 36R be arranged on interlock plate 24 abreast along left and right directions the top and bottom, the face and second connecting elements 30 are connected on the interlock plate 24 along interlock plate left and right directions by the pin 30A, the 30B that are arranged side by side.

In this 2nd embodiment, it is had at the illustrated locking arm 38 of the 1st embodiment, its relieving rod 29 etc.

In the 1st, the 2nd embodiment, the speed change gear in the serial speed change pin of also available walking and connection rod of gear shifting thereof replace the choke valve and the release lever of engine, and at this moment, the rupturing operation by steering clutch lever just can make the speed change gear deceleration.

In this embodiment, the J of bindiny mechanism makes being provided with on connecting elements 35L, the 35R to free part 36L, 36R, be provided with on interlock plate 24 and be bonded on double pointed nail 24R, the 24L that frees in the part.Free part but also can on the interlock plate, form, on connecting elements, form double pointed nail.

As shown in Figure 7, the present invention the 3rd embodiment is on the position that can hold from handle, and another lock release bar 29A is set, and the coupling part by the band deep hole on hawser 41A and the locking arm 38 links to each other.

As shown in Figure 8, the present invention the 4th embodiment is being provided with lock release bar 29 on the position that can grasp from handle.

Among the 3rd, the 4 embodiment, all represent with same-sign with member identical among above-mentioned the 1st, the mat woven of fine bamboo strips 2 embodiment.

In the 1st, the 2nd embodiment, near the edge of a field, do not lock locking arm 38, after turning, grasp handle as before and just can lock again, and the 3rd, the mat woven of fine bamboo strips 4 embodiment than this operation easier carrying out.

The 5th embodiment be expression with another kind of structure be implemented in the steering cluth that illustrated among the 1st embodiment and operation clutch connection, opening operation bindiny mechanism and pin down the example of mechanism.

As shown in figure 10, by passing through supporting member 118a on the frame part 118 of traveling machine body, centering on an axle X ₂The mat woven of fine bamboo strips 1 connecting rod 121 that is supporting swingably, connection cable 122; On the frame part 119 of traveling machine body, pass through supporting member 119a, center on an axle Y ₂The 2nd connection link rod 123 that is supporting swingably constitutes the bindiny mechanism 120 of steering cluth CL and CR and the clutch CU that plants.And for example shown in Figure 12, by pining down part 124a and act on this spring 124b that pins down that pins down on the part 124a and constitute the clutch CU that plants pind down mechanism 124 by what supporting member 119b was supporting on the said frame part 119; By be connected above-mentioned pin down interlock on the part 124a with hawser 125a and control crank 104 about arbitrarily near on one side the assurance part, supporting handle and the relieving rod 125b that pins down that can operatively be installed with constitutes the clutch operating mechanism 125 of planting.

Also be, when carrying out the opening operation of steering cluth CL or CR by steering clutch lever 116a or 116b, because the operation of holding with a firm grip of steering clutch lever 116a or 116b makes clutch hawser 115a or 115b tensioning, makes motion arm 114a or 114b convert rising open position OFF to decline on-position ON.At this moment, the distolateral distolateral effect of pushing that plays of moving about that connects link rod 121 1 sides at the mat woven of fine bamboo strips one of moving about that side that is connecting with respect to balance staff, with clutch hawser 115a or 115b of motion arm 114a or 114b is opposite, make first to connect link rod 121 swings thus, connection cable 122 tensionings, make 123 swings of second connecting rod, make operating axis 117 slide into open position OFF from on-position ON.Thus, the clutch CL that just carries out with steering clutch lever 116a and 116b of bindiny mechanism 120 or the opening operation of CR conjointly make the clutch CU that plants convert disconnection to from connection.

Make and pin down body 124a round the fulcrum swing of determining by supporting member 119a, shown in the solid line of Figure 12, the effect end S that pins down part 124a is in and is connected with second when link rod 123 is contacted to be pind down position (being equivalent to primary importance) and go up, pin down part 124a and become the brake component that connects link rod 123 to second, pin down mechanism and become to pin down the state of employing by second operating axis 117 that makes that connects link rod 123 being converted to the prevention that direction of on-position ON is swung from open position OFF, making.Be in the making operation that mechanism 124 allows the steering cluth CL that undertaken by steering clutch lever 116a that pins down of restraining function state, and the making operation of the steering cluth CR that is undertaken by steering clutch lever 116a, pin down the making operation of the clutch CU that plants that is undertaken by above-mentioned bindiny mechanism 120 simultaneously.

Shown in the dotted line of Figure 12, pin down part 124a round the fulcrum swing of determining by supporting member 119b making, the effect end S that pins down part 124a be in the second horizontal side that connects link rod 123 from pin down the releasing position when (being equivalent to the second place), pin down mechanism and pin down disarm state for 124 one-tenth, also be, second connects link rod 123 is swung by backspring 126, can make operating axis 117 convert the operation of on-position ON to from open position OFF.

In addition, as shown in figure 13, also brake(-holder) block 127 can be installed on any one transmission case 111 of the left and right sides.This brake(-holder) block 127 is propped up by the fulcrum pivot on the transmission case 111, the end that moves about drags when contacting drawing with the propelling of wheel 101, the brake on-position of 101 braking actions of wheel and the end that moves about are broken away from the traveling machine body inboard from wheel 101, releasing is to swingingly constituting between the brake open position of 101 braking actions of wheel, simultaneously by brake hawser 128 and above-mentioned steering clutch lever 116a or 116b interlock, opening operation by steering cluth CL or CR, when wheel 1 is operable to the driving halted state, this wheel 1 also is in on-position, stop to compare with the inboard wheel driving that only makes turning, body is turned with minor radius.

Below, with reference to Figure 14 the 6th embodiment is described, when this embodiment was illustrated in edge of a field body and turns, the answer from being disconnected to connection of the clutch CU that plants can be carried out the clutch operating mechanism of planting that constitutes like that automatically.

The mid portion of a buoyancy aid support bar 131 of the rearward end of the back ground connection buoyancy aid 108,108 about two ends are connecting respectively by fulcrum 132a, is supported by the support section on the frame part 119 of traveling machine body 133.Simultaneously, the effect because of the long hole shape of the fulcrum inserting hole of support section 133 constitutes fulcrum 132a with respect to support section 133 liftable structures.By this structure, centering on axletree, the rear end of swing lifting traveling machine body, and when the ground pressure that acts on the back ground connection buoyancy aid 108 is changed, owing to connect the own wt of ground connection reaction force on the buoyancy aid 108 and ground connection buoyancy aid 108 etc. after being used in, make fulcrum 132a carry out lifting with respect to support section 133, and, can see at Fig. 9, the front end of back ground connection buoyancy aid 108 is connected on the traveling machine body, bend and stretch connecting rod 134 and bend and stretch by making, back ground connection buoyancy aid 108 constitutes up and down with respect to traveling machine body.

That is to say, at headland turn, when carrying out that the traveling machine body rear end side mentioned operation, mention, make back ground connection buoyancy aid 108 drop to predefined decline installment state by body.Along with this action, when fulcrum 132a was descended, the interlock connecting rod 132b that installs on fulcrum 132a descended round fulcrum X3 and swings, and makes hawser 132b become relaxation state, pin down part 124a because of being pind down the effect of spring 124b, remove the position from above-mentioned pining down and convert to and pin down the position.

Then, after edge of a field turning is over,, when making the traveling machine body rear end be returned to bottom,, make back ground connection buoyancy aid 108 rise to predefined rising installment state because body puts down for the walking of planting.Meanwhile, fulcrum 132a is risen,, make interlock hawser 132c become tensioning state,, pin down part 124a and convert to and pin down the releasing position from the above-mentioned position that pins down because of the effect of the hawser 132c tensile force that linked by the interlock connecting rod 132b swing of rising.Then, because the second connection link rod 122 is subjected to the effect of return spring 126, make operating axis 117 carry out converting to the operation of on-position ON from open position OFF.Thus, back ground connection buoyancy aid 108 converts the decline state of above-mentioned setting to from the propradation with respect to the above-mentioned setting of traveling machine body.Thus, pin down mechanism 124 and just automatically convert the restraining function state to, the operating mechanism 132 of planting automatically carries out handle once more and pins down the operation that pins down releasing of mechanism 124, and can automatically carry out the operation of the clutch CU connection of planting.

In above-mentioned the 5th, the 6th embodiment, identical part is all represented with same-sign.

As mentioned above, if adopt the present invention, because opening operation clutch automatically just when headland turn disconnects this clutch by steering clutch lever, thereby do not need to operate a plurality of clutch levers when turning, make the slyness, brisk of turning thus, and speed also reduces, and the headland turn area just can reduce.

And, because the operation clutch lever is the energy independent operation, thereby can have as shifting the basic role effect that does not have obstacle to job state after turning, also have following distinctive effect simultaneously aspect homework precision.

Intersects because the linkage component of link gear is the longitudinally with pole, on the inclined plane, back upper place, is swinging, even thereby do linkage component to such an extent that grow up, also can design compactly, the operation element amount of the more a spot of action bars of usefulness just can be finished.Because connecting elements arranges along the longitudinally of pole across with linkage component again, design is compact, and with the combination of the hawser that is connected usefulness etc. can be suitable.

Claims (6)

1. the clutch operating structure of a propelled type working in paddy field, it has the clutch (17L that body turns to usefulness, 17R, CL, CR), turn to the clutch operating body 18L of usefulness, 18R, 116a, 116b), operation clutch (15, CU), and the above-mentioned clutch that turns to usefulness, turn to the clutch operating body of usefulness and the bindiny mechanism (24 that the operation clutch couples together, 30,35,25,120), the formation of above-mentioned bindiny mechanism, by the above-mentioned opening operation of the clutch operating body of usefulness that turns to the clutch that turns to usefulness is disconnected, the operation clutch is disconnected; It is characterized in that, have and to set the primary importance and the second place, act on and pin down mechanism (40,38A, 37,38,124) in the above-mentioned bindiny mechanism, above-mentioned when pining down mechanism and being set in above-mentioned primary importance, by the above-mentioned making operation that turns to the clutch operating body of usefulness, by above-mentioned syndeton, allow above-mentioned turning to use the clutch making operation, stop the making operation of above-mentioned operation clutch (15, CU) simultaneously; Above-mentioned when pining down mechanism and being set on the second place, by the above-mentioned making operation that turns to the clutch operating body of usefulness,, allow above-mentioned turning to use the clutch making operation by above-mentioned syndeton, allow above-mentioned operation clutch (15, CU) making operation simultaneously.

2. the clutch operating structure of propelled type working in paddy field as claimed in claim 1, it is characterized in that: have and be used for converting on-state to by the above-mentioned operation clutch that mechanism (40,38A, 37,38,124) remains on off-state (15, CU) that pins down, pin down the manual operation part that mechanism removes (29,125b) and the manual type operating mechanism (16) that above-mentioned operation clutch (15, CU) can be connected is arranged above-mentioned.

3. the clutch operating structure of propelled type working in paddy field as claimed in claim 1, it is characterized in that: have along with ground connection buoyancy aid (108) converts the rising installment state to from the decline installment state of setting with respect to traveling machine body, can automatically make the above-mentioned self-action operating mechanism that mechanism (124) changed and can make automatically above-mentioned operation clutch (CU) action that pins down.

4. the clutch operating structure of propelled type working in paddy field as claimed in claim 1 is characterized in that: above-mentioned bindiny mechanism (24,30,35,25,120) be by:

First connecting elements (25L, 25R) that above-mentioned steering cluth (17L, 17R) and above-mentioned steering cluth operating body (18L, 18R) are coupled together;

Second connecting elements (30) that above-mentioned operation clutch (15) and operation clutch operating body (16) are coupled together;

Be installed on the mid portion of the first above-mentioned connecting elements (25L, 25R), have the connecting elements (35L, 35R) of freeing part (36L, 36R);

Has the coupling part (24L, 24R) that part (36L, 36R) is connected of freeing with above-mentioned connecting elements (35L, 35R), and the linkage component (24) that the coupling part (30A) that is connected with the mid portion of above-mentioned second connecting elements (30) is arranged constitutes

Just can operate above-mentioned operation clutch operating body (16) independently by the above-mentioned part (36L, 36R) of freeing, and just can pass to above-mentioned coupling part (24L, 24R) to the opening operation of steering cluth operating body (18L, 18R) by above-mentioned connecting elements (35L, 35R).

5. the clutch operating structure of propelled type working in paddy field as claimed in claim 4, it is characterized in that: above-mentioned pin down mechanism (40,38A, 37,38,124) be by be installed on the above-mentioned linkage component (24) coupling part (40) and by with steering cluth operating body (18L, 18R) opening operation, make above-mentioned coupling part (40) keep, forbid that the retaining member (38A) of above-mentioned linkage component (24) action constitutes;

And, for after above-mentioned coupling part (40) are kept, allow steering cluth operating body (18L, 18R) to carry out making operation, forbid linkage component (24) action again, constitute free partly (36L, the 36R) and coupling part (24L, 24R) of above-mentioned connecting elements (35L, 35R).

6. the clutch operating structure of propelled type working in paddy field as claimed in claim 5, it is characterized in that: above-mentioned operation clutch operating mechanism have the hold mode of above-mentioned linkage component (24) removed after, the operation clutch operating body (16) that operation clutch (15) is connected.

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