CN202773377U - Combined harvester - Google Patents

Abstract

The utility model provides a combined harvester which enables an operator sitting in a driving seat to confirm the length of a coil spring easily. The combined harvester is formed as follows the driving seat and an engine are arranged on a position of the front portion of a traveling harvester body, a grain gathering box for grain storage is arranged behind the driving seat and the engine, a grain discharge device and a discharge clutch are arranged on the grain gathering box, the grain discharge device is used for discharge grains from the grain gathering box, and the discharge clutch is used for transmitting or cutting off the driving force which is transmitted from the engine to the grain discharge device. The discharge clutch is provided with a driving belt and a tensioning wheel, the transmission belt is winded between a driving belt wheel and a input belt wheel, the driving belt wheel is driven to rotate by the output shaft of the engine, the input belt wheel is connected with the grain discharge device, and the transmission belt is imposed a tensile force by the tensioning wheel. Besides at least one operation rod and the coil spring are arranged in series between the transmitting and cutting-off operating part and the tensioning wheel, the transmitting and cutting-off operating part is arranged at the side of the driving seat, and the coil spring is arranged above the longest operation rod.

Description

Combine

Technical field

The utility model relates to combine, particularly relates to the clutch operating mechanism that this combine has.

Background technology

As the prior art documentation ﹠ info that is associated with this combine, the patent documentation 1 shown in following is arranged.The combine that this patent documentation 1 is put down in writing is provided with so-called motor-operating mechanism and these two kinds of operating mechanisms of manual-operating mechanism, wherein motor-operating mechanism carries out handover operation by electric power to belt tension formula discharge clutch, and manual-operating mechanism has precedence over this motor-operating mechanism and carries out handover operation by manual operation power to discharging clutch.

Thereby, for the combine that patent documentation 1 is put down in writing, usually unload transmission, the opening operation of paddy device with shirtsleeve operation by motor-operating mechanism, even and in the situation that motor-operating mechanism breaks down, also can implement to extract operation by the transmission, the opening operation that are unloaded the paddy device by manual-operating mechanism.

And it is standby that the belt tension formula is discharged clutch appliance: driving belt, and it is wound on along with the drive pulley of the output shaft rotation of engine and unloads between the input belt pulley of paddy device; And regulating wheel, it comes driving belt is applied tension force based on the clutch attended operation of being undertaken by motor-operating mechanism or manual-operating mechanism.In addition, near the upper end that axle is supporting long action bars the periphery of the rotary body of the electromotor rotary actuation by motor-operating mechanism, and link the lower end of this action bars and support the part of the tensioner arm of regulating wheel by helical spring.

Thereby the helical spring length by to the clutch attended operation behind the engine stop time is observed, and can infer whether the tension force of driving belt is enough.In addition, when the discharge clutch before the driving of unloading the paddy device overhauls, helical spring length during according to the clutch attended operation, infer because of the driving belts such as elongation of driving belt a hypodynamic situation under, the physical length of action bars is shortened in the operation of turnbuckle (length adjustment mechanism) of the part by being installed in action bars etc., so that helical spring length becomes normal length, the tension force of driving belt can be brought up to suitable level thus.

[patent documentation 1] Japan Patent 2002-27827 communique (0006～0007 section, Fig. 4)

The utility model content

But, in the combine that patent documentation 1 is put down in writing, the helical spring of discharging clutch and driving belt or the input belt pulley that unloads the paddy device similarly are configured in the position lower than driver seat, therefore need the operator from confirming afterwards helical spring length under the driver seat to ground, operating efficiency is not high.

In addition, if for driving belt not being unloaded with regard to the combine on the release position that grain collecting box can not be switched to maintenance usefulness from a side belt pulley at least, need to carry out confirming from the narrow gap between grain collecting box in the closed position and the driver's cabin the loaded down with trivial details operation of helical spring length.

Therefore, the problem of bringing in view of the combine of top illustrated prior art, the purpose of this utility model is, provides a kind of operator to need not from just can confirm simply the combine of helical spring length under the driver seat to the ground on driver seat.

Feature structure according to combine of the present utility model is as follows:

Dispose driver seat and engine in the forward position of the body that travels, rear at them disposes the grain collecting box that stores grain, and possess from this grain collecting box discharge grain unload the paddy device and transmission, disconnection are delivered to the described discharge clutch that unloads the driving force of paddy device from described engine

Described discharge clutch appliance is standby: driving belt, and it is wound on the drive pulley of described engine rotation with described and unloads between the input belt pulley that the paddy device links to each other; And regulating wheel, it applies tension force to described driving belt,

The first bar of formation action bars and second bar and the draft helical spring shorter than this first bar in series are installed between the transmission opening operation parts that dispose by the described driver seat and described regulating wheel, and described draft helical spring is configured in the top of described the first bar.

According to the combine with above-mentioned feature structure, by draft helical spring being configured in than the top side of the longest action bars, therefore draft helical spring is positioned at the higher position, is sitting in operator on the driver seat by from rotating a little above the waist near the driver seat or making body forward stretch out the length that just can confirm draft helical spring.Namely, when the discharge clutch before the driving of unloading the paddy device overhauls, need not under the driver seat to ground, just can infer whether the tension force of driving belt is enough according to the length of the draft helical spring of visual confirmation, therefore, for example in the enough situation of the tension force that is speculated as driving belt, the driving that can begin immediately to unload the paddy device can obtain higher operating efficiency.

Other feature structures of the present utility model are, described transmission opening operation parts possess the motion arm by the discharge bar swinging operation that disposes at described driver seat, and described draft helical spring locks between the upper end of the service portion of described motion arm and described action bars.

According to this formation, one end of draft helical spring locks on the motion arm by discharge bar swinging operation, in other words, draft helical spring in fact be close to driver seat operator operation motion arm and dispose, so the operator need make above the waist or neck rotation or make body forward stretch out the length that just can confirm draft helical spring at lower of the state on the driver seat of being seated at.

Other feature structures of the present utility model are, between described transmission opening operation parts and described regulating wheel, the length adjustment mechanism of the length that changes described action bars also is installed, and described length adjustment mechanism and described draft helical spring are configured in the top of described the first bar.

According to this formation, also be configured in than the top side of the longest action bars by making length adjustment mechanism, make length adjustment mechanism be positioned at the higher position, so the operator can be from implementing the operation of length adjustment mechanism near the driver seat.Namely, be judged as in the length according to the draft helical spring of visual confirmation in the hypodynamic situation of driving belt, the working length governor motion so that the length of draft helical spring become suitably and need not down on the ground, can apply enough tension force to driving belt thus, therefore can obtain higher operating efficiency.

Other feature structures of the present utility model are that described action bars is configured to, and are being in the situation of perpendicular attitude, and the upper-end part of driving of this discharge bar is higher than the upper end of the backrest of driver seat.

Other feature structures of the present utility model are, described length adjustment mechanism is arranged near the upper surface of the section of taking one's seat of described driver seat.

Other feature structures of the present utility model are, install at the body inside line of described driver seat and are equipped with panel part, on the discharging operation panel that the rear that described transmission opening operation parts are supported on described panel part disposes.

Other feature structures of the present utility model are, by on the top board that consists of described discharging operation panel so that discharge the swing boundary that described discharge bar is stipulated at the both ends of the slotted hole that mode that bar inserts forms.

Other feature structures of the present utility model are, by stipulate the swing boundary of described discharge bar at the stop component of the inside of described discharging operation panel setting.

Other feature structures of the present utility model are that described discharge bar is configured to, and under side-looking, the top of the air cleaner that the operating area of described discharge bar and the rear position of described driver seat possess is overlapping.

Other feature structures of the present utility model are, described helical spring is disposed near the up and down centre of backrest of described driver seat.

Description of drawings

Fig. 1 is the integral right view of combine of the present utility model.

Fig. 2 is the integral left view of combine of the present utility model.

Fig. 3 is the whole vertical view of combine of the present utility model.

Fig. 4 is near the front view of discharge clutch that the paddy device is unloaded in expression.

Fig. 5 is near the vertical view of discharge clutch that the paddy device is unloaded in expression.

Fig. 6 is near the front view of motion arm that clutch is discharged in expression.

Fig. 7 is near the right view of motion arm that clutch is discharged in expression.

Fig. 8 is the front view of the boundary vicinity of expression sheller unit and recoverer.

Fig. 9 is the major part right view of the exhaust structure etc. of expression combine.

Figure 10 is the major part front view of the connect mechanism of expression grain collecting box.

Figure 11 is the major part vertical view of the connect mechanism of expression grain collecting box.

Figure 12 is the major part right view of the connect mechanism of expression grain collecting box.

Figure 13 is near the exploded stereogram of exhaust manifolds of expression aiutage.

Figure 14 is near the major part left view of exhaust manifolds of expression aiutage.

Figure 15 is near the key diagram of exhaust manifolds of expression Figure 14.

Figure 16 (a) and (b), (c) are the key diagrams of other Installation postures of expression exhaust manifolds.

Figure 17 is that expression grain is discharged with near the major part right view the auger.

Figure 18 is that expression grain is discharged with near the major part rearview the auger.

Figure 19 is that expression grain is discharged with near the major part vertical view the auger.

Figure 20 (a) and (b) are the stereogram of mounting structure of expression bulge and the end view of bulge.

Reference numeral

2 bodies that travel

5 grain collecting boxes

6 unload the paddy device

12 driver seats

18 discharge bar (transmitting the opening operation parts)

20 motion arms (transmitting the opening operation parts)

Output belt pulley (drive pulley) in the middle of 45

46 input belt pulleys

47 driving belts

48 regulating wheels

53 action bars

53a the first bar (the longest action bars)

53b the second bar

54 helical springs (draft helical spring)

55 turnbuckles (length adjustment mechanism)

C discharges clutch

E-engine

Embodiment

Below, about implementing mode of the present utility model, describe with reference to accompanying drawing.

(integral body of combine consists of)

Such as Fig. 1, Fig. 2 and shown in Figure 3, the section that extracts 3 that possesses free lifting at the front end of the body 2 that travels that travels by the pair of right and left crawler type running device, and dispose side by side in the position, the left and right sides of the body 2 that travels and to supply with by extracting the sheller unit that extracts the paddy stalk 4 that section 3 extracts and storing the grain collecting box 5 of the grain of sending here from this sheller unit 4, grain collecting box 5 possess discharge grain unload paddy device 6, possess the Drive Section 10 that the operator takes at the anterior of the body 2 that travels and in the forward position of grain collecting box 5, consist of like this half feed combine harvester.

For this combine, possess engine E at the downside of the driver seat of Drive Section 10, when harvesting, extract section 3 and sheller unit 4 by the drive force of engine E, and drive crawler type running device 1 body 2 that travels is travelled.Thus, carry out extracting of paddy stalk by the stem root that extracts section 3 and cut off the paddy stalks, will extract the paddy stalk and be transported to sheller unit 4 and carry out threshing and process, and carry out filtering out the action that grain is stored into grain collecting box 5 from processing the handled thing that obtains via this threshing.

(Drive Section)

Possess the driver seat 12 that foot pedal 11 that the operator takes and operator take one's seat at Drive Section 10, and possess the control stick 13 of operator's operation in the anterior position of driver seat 12.Panel part 14 in the side locations of driver seat 12 possesses main shift lever 15 and secondary gear lever 16, possesses at the discharging operation panel 14D of the rear end of panel part 14 sidepiece configuration and discharges the example that bar 18(transmits the opening operation parts).

For control stick 13, under non-operating state by the neutral application of force with the attitude of maintaining a neutral stance, carry out swinging operation the turning to, rotating of body 2 of realizing travelling by any direction to the left and right, and operate to make the section's of extracting 3 liftings by any direction forwards, backwards.Main shift lever 15 is the infinite variable speed parts that carry out travel speed, and constitute can be in the neutral position that the body 2 that travels is stopped, from this neutral position the speed change zone and retreat free operant between the speed change zone from the neutral position by what rear side formed of advancing that forms of side on the front.Secondary gear lever 16 carries out the multi-change speed operation.Discharge bar 18 and discharge clutch C by operation, discharge the grain that is stored in grain collecting box 5.This discharge clutch C is to being delivered to the driving force of unloading paddy device 6 and transmitting or disconnecting from engine E.

On the hood of covering engine E, possess driver seat 12, possess the air cleaner 23 that air inlet that subtend engine E supplies with purifies in the rear position of driver seat 12.Via the air inlet to these air cleaner 23 air supply preliminary filters 24 of the air inlet pipe of support column type.And the air inlet of sending here from air cleaner 23 supplies to engine E via the intake channel of hood inside.

Such as Fig. 3 and shown in Figure 5, the base end part of discharging bar 18 is configured in left side, the rear side of driver seat 12, and the operating area of this discharge bar 18 is formed on position overlapping with the top of air cleaner 23 under the side-looking.In addition, as shown in Figure 4, size relationship is set to, and is in the situation of perpendicular attitude at discharge bar 18, and the upper-end part of driving of this discharge bar 18 is positioned at the position higher than the upper end of backrest 12A.

(unloading the paddy device)

As shown in Figure 1, dispose the bottom auger 31S that consists of discharge conveying plant 31 in the bottom of grain collecting box 5, this discharge conveying plant 31 transfers out the grain that is stored in the grain collecting box 5.Unloading paddy device 6 possesses: the elbow carrier pipe 32 that will guide upward from the grain that bottom auger 31S sends here; The longitudinal conveying device 33 that to carry upward from the grain that this carrier pipe 32 is sent here; The middle conveying plant 34 that the grain that will send here from this longitudinal conveying device 33 is carried to horizontal direction; The grain that to send here from this centre conveying plant 34 is to the cross conveyor 35 of lateral transfer.In addition, cross conveyor 35 constitutes can be at the mid portion free bend, and is formed with discharge portion 36 in the end of discharging side.

Longitudinal conveying device 33 has the formation of taking in vertical conveying auger (not shown) in the inside of cylindrical tube, and middle conveying plant 34 has the formation of taking in middle auger (not shown) in the inside of cylindrical tube.Cross conveyor 35 has the formation of taking in lateral transfer auger 35S in the inside of cylindrical tube.The mid portion of the cylindrical tube of cross conveyor 35 can freely be bonded foldedly via hinge, and possess the chimeric linking part (not shown) that can between released state and connecting state, freely switch in the centre of lateral transfer auger 35S, in order to allow this folding.

In the internal configurations of carrier pipe 32 end of sending side of bottom auger 31S is arranged, the lower end of vertical conveying auger (not shown) of longitudinal conveying device 33 is arranged in the internal configurations of carrier pipe 32.By this configuration, possesses the first bevel gear mechanism (not shown) of the described vertical conveying auger interlock that makes bottom auger 31S and longitudinal conveying device 33 in the inside of carrier pipe 32.

In the pipe internal configurations of middle conveying plant 34 upper end of vertical conveying auger of longitudinal conveying device 33 is arranged, the end of the base end side (side opposite with transport direction) of cross conveyor 35 is arranged in the pipe internal configurations of middle conveying plant 34.By this configuration, the pipe inside of middle conveying plant 34 possess make in the middle of the second bevel gear mechanism (not shown) of upper end interlock of vertical conveying auger of longitudinal conveying device side in the middle auger of conveying plant 34 and longitudinal conveying device 33.In addition, the triconodont wheel mechanism (not shown) that possesses the base end side interlock of cross conveyor side in the middle auger that makes this centre conveying plant 34 and lateral transfer auger 35S in the inside of middle conveying plant 34.

As shown in Figure 1, between the base end side of cross conveyor 35 and middle conveying plant 34, possesses lifting hydraulic cylinder 38.As shown in Figure 5, a plurality of control buttons 21 that possess control electric rotating machine 37 and lifting hydraulic cylinder 38 at the discharging operation panel 14D that discharges bar 18.Although not shown in the accompanying drawing, possess the control device that makes any one action in lifting hydraulic cylinder 38 and the electric rotating machine 38 corresponding to any one operation of a plurality of control buttons 21.

According to this formation, operate button corresponding with rotation in a plurality of control buttons 21 by the operator and make electric rotating machine 37 actions, make thus and unload paddy device 6 and centered by longitudinal axis center Y, be rotated, thereby come from the setting of transport direction of the grain of discharge portion 36.In addition, the button corresponding with lifting makes lifting hydraulic cylinder 38 expanding-contracting actions in a plurality of control buttons 21 by operating, and makes the front of cross conveyor 35 carry out lifting centered by horizontal axis, thereby sets the height of sending of the grain come from discharge portion 36.

(discharge clutch)

Such as Fig. 4～shown in Figure 8, the drive system of unloading paddy device 6 possesses the discharge clutch C that the driving force with engine E is delivered to the belt-type transmission mechanism of bottom auger 31S and carries out the connection disconnection of driving force.That is, the intermediate input belt pulley 43 that possesses on the output belt pulley (not shown) that possesses on the output shaft of leap engine E and the power shaft of gear-box 42, the intermediate belt 44 of reeling and being consisted of by the endless belt.Gear-box 42 is built-in with bevel-gear sett, so that will be delivered to rotary power on the power shaft passes on the output shaft that is in power shaft orthogonal attitude, and cross over possess on the output shaft of this gear-box 42 in the middle of the input belt pulley 46 that possesses on the power shaft of outer end of output belt pulley 45 and bottom auger 31S, the driving belt 47 that coiling is made of the endless belt, and possess regulating wheel 48 to this driving belt 47 working tensions.

In the anterior position of grain collecting box 5 and in the sidepiece rear position of driver seat 12, the support frame 51 of support column type is erect and is arranged on the organism frame 2F, and via the axis body 49A of attitude before and after being with respect to this support frame 51 twelve Earthly Branches support tensioner arm 49 that freely swings, support aforesaid regulating wheel 48 at the swinging end of this tensioner arm 49 with rotating freely.

Discharge clutch C and consisted of by output belt pulley 45, input belt pulley 46, driving belt 47, regulating wheel 48 and tensioner arm 49 in the middle of aforesaid, and be configured in the bottom anterior position of grain collecting box 5.This discharge clutch C constitutes, the switching of the swing attitude by tensioner arm 49, and regulating wheel 48 control actions are in the tension force of driving belt 47, and freely switch between the off-state of the connection status of transferring power and blocking power.

(clutch operating mechanism)

Such as Fig. 4～shown in Figure 8, for clutch C are discharged in discharge bar 18 controls by driver seat 12, and between this discharge bar 18 and tensioner arm 49, possesses clutch operating mechanism F.

Clutch operating mechanism F has: the motion arm 20 that carries out swinging operation based on the swinging operation of discharging bar 18; The upper end locks a near example of the helical spring 54(draft helical spring the front end of motion arm 20); And be installed in the lower end of helical spring 54 and the long action bars 53 between the tensioner arm 49.Action bars 53 and helical spring 54 in series are configured between discharge bar 18 and regulating wheel 48 mutually.

Action bars 53 has: an example of the action bars that the first bar 53a(of the downside that links with tensioner arm 49 is the longest); And the second bar 53b of the upside that links with helical spring 54, the first bar 53a and the second bar 53b are by an example of turnbuckle 55(length adjustment mechanism) link.

The first bar 53a of downside is longer than the second bar 53b of upside, particularly, has about 10 times the length of the second bar 53b at this first bar 53a.

Consequently, under any attitude of " connection " attitude (being represented by solid line among Fig. 4) of discharging bar 18 and "off" attitude (being represented by double dot dash line among Fig. 4), helical spring 54 is positioned near the up and down middle height of the backrest 12A of driver seat 12, and turnbuckle 55 is positioned near the height of upper surface of the 12B of the section of taking one's seat of driver seat 12.

More specifically, discharging bar 18 and motion arm 20 is supported on the discharging operation panel 14D that the rear side of panel part 14 disposes.Discharging operation panel 14D is near the box-shaped fixing upper end of support frame 51.Inside at the tubular support body 19T of the rear sidewall upper support of this discharging operation panel 14D, supporting action bars 19 around inserting freely to rotate towards the axle center of front and back X1, the base end part of motion arm 20 is by the end that welding waits the rear side that is fixed on action bars 19, and the outer build-in of base end part of discharging bar 18 fixes on the end of the front side of action bars 19.Discharging bar 18 and motion arm 19 extends to connecing subparallel direction from action bars 19.

Such as Fig. 4 and shown in Figure 6, discharge bar 18 constitutes can be around axle center X1 swinging operation, its hunting range is limited in from close " connection " attitude of driver seat 12 of axle center X1 is compared in the upper end of the discharge bar 18 of discharging operation panel 14D, compares axle center X1 from the scope of driver seat 12 close "off" attitude to the vehicle side to the upper end of discharging bar 18.

The swing boundary of this discharge bar 18, as shown in Figure 5, can be by on the top board 14T that consists of discharging operation panel 14D, realizing in order to insert the both ends of discharging the slotted hole 14H that bar 18 forms, but the stop component that special use also can be set by the inside at discharging operation panel 14D is realized.

On the surface of the top board 14T the two ends of slotted hole 14H near, by affixing one's seal or the mode such as printing is attached with expression and discharges " connection " attitude of bar 18 and the literal (not shown) of each position of "off" attitude.

Clutch operating mechanism F such as Fig. 4 and shown in Figure 6, is in the situation of "off" position at discharge bar 18, makes the tension force reduction that acts on driving belt 47 from regulating wheel 48, will discharge clutch C and be set in off-state.To discharge bar 18 operation in the situation of " connections " position, the swinging end of tensioner arm 49 operated direction of improvement, make the tension force increase that acts on driving belt 47 from regulating wheel 48, be set in connection status thereby will discharge clutch C.

Particularly, to discharge in the situation of bar 18 from the "off" position operation to " connection " position, the active force of the tension force of driving belt 47 and helical spring 54 plays a role especially effectively, but operation is in the situation of being somebody's turn to do " connection " position, discharge bar 18 and arrive the side swing boundary of (near vehicle interior side), and before arriving this swing boundary, the point of contact of motion arm 20 and helical spring 54 roughly becomes vertical attitude above motion arm 20 and helical spring 54 becomes the longest stop, and arrive near the driver seat 12, discharge thus bar 18 and stably remained on " connection " position.

Arrive connection status by discharging clutch C like this, the driving force of engine E is delivered to bottom auger 31S by driving belt 47, and then, be delivered to the described vertical conveying auger that unloads paddy device 6, described middle auger and lateral transfer auger 35S from this bottom auger 31S, realize the conveying of the grain of storage in the grain collecting box 5.

On the other hand, will discharge bar 18 from " connection " position operation in the situation of "off" position, discharge bar 18 and arrive the opposite side swing boundary of (near vehicle outside), and before arriving this swing boundary, the point of contact of motion arm 20 and helical spring 54 roughly becomes vertical attitude above motion arm 20 and helical spring 54 becomes the longest stop, and arrive a side opposite with driver seat 12, discharge thus bar 18 and stably remained on the "off" position.

In the formation of this clutch operating mechanism F, will discharge the length that the helical spring 54 under the state of " connection " position is arrived in bar 18 operations by observing, can infer whether the tension force of driving belt 47 is enough.Thereby, in the length according to the helical spring 54 under " connection " position of discharging bar 18, judge because of helical spring 47 flexible and wait in the hypodynamic situation of driving belt, operation by turnbuckle 55 is shortened the physical length of action bars 53 so that the length of helical spring 54 becomes normal length, the tension force of driving belt 47 can be brought up to suitable level thus.

For for combine of the present utility model, as previously mentioned, helical spring 54 be present in discharge bar 18 near, specifically the backrest 12A of the behind of driver seat 12 and driver seat 12 up and down in the middle of near height, namely need only the position that operator's rotary head of driver seat 12 just can be observed easily.

Thereby, the operator need not to leave driver seat 12, the length of the helical spring 54 in the time of just can being positioned at " connection " position according to discharge bar 18, infer whether the tension force that driving belt is enough, can infer in the enough situations of tension force, after driving engine E, will discharge bar 18 and again switch to " connection " attitude, and utilize thus the discharge of the grain that unloads paddy device 6 to get final product.In addition, inferring in the hypodynamic situation, by the operation of turnbuckle 55, the physical length of adjusting operation bar 53 gets final product, so that the length of helical spring 54 becomes suitable length.

In addition, in the present embodiment, turnbuckle 55 also be positioned at helical spring 54 under and near the height the upper surface of the 12B of the section of taking one's seat of driver seat 12, therefore operator's foot pedal 11 of need not to leave Drive Section 10 just can implement to rotate the operation that turnbuckle 55 is adjusted tension force, after adjusting tension force, then will discharge bar 18 and switch to " connection " attitude, and can utilize thus the discharge of the grain that unloads paddy device 6.

(sheller unit and grain collecting box)

As shown in Figure 9, in the main box 4S that consists of sheller unit 4, be provided with threshing chamber 4A, in this threshing chamber 4A, for by carrier chain 56(with reference to Fig. 2) the fringe tip side of clamping stem root side and the paddy stalk that is transferred, utilize and carry out threshing by the thrashing cylinder 57 that is driven in rotation around the axle center of front and back level from the power of engine E and process.

In threshing chamber 4A, the handled thing that separates from the paddy stalk screens by the screen cloth (not shown) that the bottom tensioning along threshing chamber 4A arranges, and the handled thing that sifts out through described screen cloth supplied to the first half of the 4B of screening section that the below of threshing chamber 4A is equipped with by the whereabouts, and carries and fallen to supplying to the front and back pars intermedia of the 4B of screening section through the handled thing that described screen cloth does not sift out from the dirt mouth that send of the end of threshing chamber 4A.

The swing sorting screen box 58 long by front and back receives the handled thing that is fallen to supplying to the 4B of screening section, and swing sorting screen box 58 by this on one side for handled thing and swing towards the rear and carry, screen by difference in specific gravity by the grain shuttle board on one side, and the lower sieve of selecting by top sieve, fine screen that coarse sizing is used, separating sieve that straw is used and culm sieve etc. are sized.In addition, the cleaning fan 59 that possesses from screening section leading section is cleaned wind towards what back side top flowed, supplies to the handled thing that is sized and falls, and the lighter stalk bits that comprise in the handled thing or dust rearward disperse and discharges.

In addition, grain is recovered to the first recoverer 60 as the single treatment thing is screened, and screened second recoverer 62 that is recovered to of after-treatment thing, the stalk that does not sift out through culm is considered to be worth doing from the dust-exhausting port 4C of screening section rear end and is discharged to the outside.In addition, have following formation: be recycled to the first recoverer 60 the single treatment thing grain by the first lateral transfer auger SF1 lateral transfer to machine after, vertically sending paddy device 61 to raise to send to be supplied to and put into grain collecting box 5 by auger type, the after-treatment thing that is recycled to the second recoverer 62 is by after the second lateral transfer auger SF7 lateral transfer, and the reduction apparatus 63 by auger type is supplied to swing sorting screen box 58 anterior via reduction with guided plate 63A reduction and also again accepts Screening Treatment.

Position above the rear portion of the rear of threshing chamber 4A and the 4B of screening section, the dust discharge fan 66 that is made of the fan that laterally dams cross over to be set, and the floating dust that blows from the end of threshing chamber 4A or stalk bits, screened wind direction blow to the floating dust of top, rear portion of the 4B of screening section or stalk bits and are attracted by dust discharge fan 66 and be discharged to forcibly the body rear.And, straw conveyor 67 is equipped with above this dust discharge fan 66,, the stalk of sending from threshing chamber 4A from carrier chain 56 accepted by straw conveyor 67 and towards the rear and fringe tip side be tilted conveying, and be supplied to upper rear end with sheller unit 4 and link the stalk cutter sweep 68 that arranges and carry out fine cut.

Be provided with the lid 69 that freely swings on the top of stalk cutter sweep 68, this lid can be closed the opening 68A of stalk cutter sweep 68.Shown in solid line, when lid 69 was opened, the stalk that is held the rearward end that is delivered to straw conveyor 67 supplied to stalk cutter sweep 68 via opening 68A and carries out fine cut, and falls discharge downwards.On the other hand, when lid 69 was closed, the below of the stalk that falls discharge from the rearward end of straw conveyor 67 along the upper surface of the inclination of lid 69 to rear side fell discharge.

As shown in Figure 3, grain collecting box 5 constitutes, the longitudinal axis center X2 that can possess around its rear portion is positioned at the job position (being represented by solid line) at the rear of engine E and toe lateral in integral body and stretches out to the right outside side of organism frame 2F and open between the maintenance position (being represented by double dot dash line) of right side wall of the rear of engine E and sheller unit 4 and swing displacement.With the swing displacement of grain collecting box 5 irrespectively, vertically send paddy device 61 to maintain the fixed position of sheller unit 4 sides, and with the swing displacement of grain collecting box 5 accordingly, the grain supply port 61M that arranges in the upper end of vertically sending paddy device 61 connects and separates with respect to grain collecting box 5.

Between sheller unit 4 and grain collecting box 5, as the mechanism that is used for grain collecting box 5 is remained on job position, be provided with near the first lockable mechanism 70A second lockable mechanism 70B with the lower end that is positioned at grain collecting box 5 in the centre position on the short transverse that is positioned at grain collecting box 5.

The first lockable mechanism 70A has: above the side of sheller unit 4 towards the place ahead supported lock pin 71; And the fastener 72 that is configured in the place ahead wall of grain collecting box 5.Fastener 72 has: the Support bracket 73 that is fixed on the place ahead wall of grain collecting box 5 by bolt etc.; And with respect to the swing clamping plate 74 of Support bracket 73 around the axle center X3 axle support before and after car body.

Front end at Support bracket 73 is formed with the recess of admitting lock pin 71, is provided with the fastener 74A of hook shape at the front end that swings clamping plate 74.Swinging clamping plate 74 can freely swing between the releasing position of recess release with the lock position between the fastener 74 with lock pin 71 at the recess that lock pin 71 is limited in Support bracket 73.In addition, between Support bracket 73 and swing clamping plate 74, be equipped with swinging clamping plate 74 towards the helical spring 75 of the lock position application of force.

The face towards sheller unit 4 sides at the fastener 74A that swings clamping plate 74 is formed with the guiding inclined plane.At this, if grain collecting box 5 is swung to job position from maintenance position, then swing clamping plate 74 by and from the side near the butt between its lock pin 71, overcome the active force of helical spring 75, be operated into and remove the position, when lock pin 71 entered into recess, swing clamping plate 74 automatically switched to the lock position by the active force of helical spring 75, finish the restriction of lock pin 71.

This and then, if make near the second lockable mechanism 70B the lower end that is arranged on grain collecting box 5 be in lockup state, the position of then finishing on the job position of grain collecting box 5 keeps.The second lockable mechanism 70B have near the lower end of grain collecting box 5 can easy on and off supported lock pin 76 with displacement, by the stop hole 2H that above form of this lock pin 76 with respect to organism frame 2F snapped in/break away from, carry out locking operation and the locking of the second lockable mechanism 70B and remove operation.

And such as Figure 10～shown in Figure 12, the lock pin 71 of the first lockable mechanism 70A is as an example of many purposes carriage 80(single component of the side that is supported on sheller unit 4) a part be set up.Many purposes carriage 80 possesses integratedly: the base end part 80A of plate shape that is fixed on the side of sheller unit 4 by bolt etc.; And near the rear end of base end part 80A towards grain collecting box 5 extended vertical flange part 80B, be fixed with the auxiliary bracket 81 of plate shape at the front end of vertical flange part 80B by bolt etc., lock pin 71 arranges from erectting near the front end of this auxiliary bracket 81.

Lower end at base end part 80A, cleaning fan air quantity adjusting lever 59L around the ground axle suspension that freely swings along horizontal axle center X4, this air quantity adjusting lever 59L is used for the air quantity according to the rea adjusting cleaning fan 59 of peristome, extends the air quantity guide plate 82 for the plate shape of cleaning fan air quantity adjusting lever 59L from the approximate horizontal ground, upper end of base end part 80A.On air quantity guide plate 82, be formed with the guide hole 82H of special-shaped groove shape that air quantity adjusting lever 59L is inserted and be used for air quantity adjusting lever 59L optionally is positioned an angle of a plurality of set angles.From extending action bars 59A towards the peristome of cleaning fan 59 near the lower end of cleaning fan air quantity adjusting lever 59L.

Like this, because many purposes carriage 80 remains on the lock pin 71 of job position with grain collecting box 5 and possesses integratedly for the air quantity adjusting lever 59L of the air quantity of adjusting cleaning fan 59 and an assembly of air quantity guide plate 82, so can realize the high efficiency of the assembling operation of combine for being used for.

In addition, be provided with locking decontrol 83 in the front of grain collecting box 5, this locking decontrol 83 is used for and will switches to maintenance position by the grain collecting box 5 that lockable mechanism 70 is maintained at job position.Locking decontrol 83 has: remove arm 84 in the lower front face section of grain collecting box 5 around can be the swingingly supported locking in the axle center before and after vehicle; And the locking relieving rod 85 that links a part and the part that swings clamping plate 74 of locking releasing arm 84.

When grain collecting box 5 is switched to maintenance position, at first, driving belt 47 is unloaded from input belt pulley 46 grades, then, from the gap between grain collecting box 5 and the Drive Section 10 locking is removed arm 84 and fell to the side of vehicle.Like this, will swing clamping plate 74 operations to removing the position by locking relieving rod 85, lock pin 71 is discharged from fastener 72, therefore the first lockable mechanism 70A becomes the locking disarm state.At this, if the lock pin 76 of the below then by will being positioned at grain collecting box 5 switches to the state that breaks away from from stop hole 2H, make the second lockable mechanism 70B also be in the locking disarm state, then can be with grain collecting box 5 towards the maintenance position swinging operation.

And, for the supply cylinder 61T that vertically send paddy device 61, upper downward-extension be arranged on from the main box 4S of sheller unit 4 to grain collecting box 5 sides away from the position, therefore, be provided with the recess 5V of the groove shape of downward-extension on the edge in a side of grain collecting box 5, this recess 5V is used for taking in the supply cylinder 61T that major part is vertically sent paddy device 61 under job position.

(formation of exhaust structure)

As shown in Figure 9, blast pipe XP has: the first pipe section 87, and it is from the exhaust emission tube 86A of motor silencer 86, on the left and right directions of body, tilt to be upward through between sheller unit 4 and the grain collecting box 5, and the extension of linear ground is set to till the height above the top plate portion of sheller unit 4; The second pipe section 89, it is tilted to upper the extension with linear ground equally with the gradient more slow than the first pipe section 87 and arranges from the rear end of the first pipe section 87.

In addition, the first pipe section 87 and the second pipe section 89 are equipped under side-looking and are inverted v-shaped, as shown in Figure 1, overlook down, are equipped to along fore-and-aft direction roughly to be a linear.In more detail, overlook lower, the second pipe section 89 be equipped to from connecting portion that the rear end of extending the first pipe section 87 that arranges along fore-and-aft direction links to each other a little to the state of body right rear side inclination.

For the configured in one piece that makes the second pipe section 89 than the supply cylinder 61T that vertically send paddy device 61 by the rear and than the top side of height of the top plate portion of sheller unit 4, the first pipe section 87 tilts to extend upward setting with the more anxious gradient, and passes from the top position of the reduction usefulness guided plate 63A of fully circuitous reduction apparatus 63.

The second pipe section 89 is configured on whole length than the height of the top plate portion 5A of grain collecting box 5 on the lower.In addition, the waste gas outlet 89E that is positioned at the rear end of the second pipe section 89 is configured in the top of stalk cutter sweep 68, and is configured in than the forward side in the rear end of stalk cutter sweep 68, so that can be outstanding from the trim line of combine under overlooking.

In addition, as shown in Figure 3, cross conveyor 35 is supported on auger storage configuration on the auger bracket 35H, overlooks down, be in the overlapping state of the major part of the second pipe section 89 and cross conveyor 35.

Be appreciated that such as Figure 13 or Figure 14 from the rear end that represents the second pipe section 89 the second pipe section 89 has: the second inner tube 89A that diameter is smaller; And the second outer tube 89B that covers most of length of the second inner tube 89A from periphery.The second outer tube 89B is with respect to the second inner tube 89A approximate equality separated configuration in ground on whole periphery.Although not special diagram, the first pipe section 87 possesses the formation of Double-sleeve equally.

The exhaust emission tube 86A of motor silencer 86 be connected pipe section 87 and roughly connect arrange on linear ground, the axle center of the second pipe section 89 also intersects with the smaller angle below 45 ° with respect to the axle center of the first pipe section 87, therefore the waste gas from motor silencer 86 flows in blast pipe XP swimmingly, can not occur among the blast pipe XP situation that temperature partly rises.

Be formed with annular gap (the second introduction part) between the rear end of the first pipe section 87 and the second pipe section 89, this gap is used for because of the injection effect that occurs based on the negative pressure that produces in the blast pipe XP outer gas being imported to the inside of the second inner tube 89A.Equally, also be formed with annular gap (the first introduction part) between the rear end of exhaust emission tube 86A and the first pipe section 87, this gap is used for because of the injection effect that occurs based on the negative pressure that produces in the blast pipe XP outer gas being imported to the inside of the inner tube of the first pipe section 87.

The gas outside blast pipe XP sucks from the first introduction part and the second introduction part can reduce EGT as described above.Particularly, described the second introduction part is not positioned at the space by the sealing of sheller unit 4 and grain collecting box 5 clampings, but is positioned at the space than the top side of top plate portion of sheller unit 4, so the lower outer gas of temperature imports to the second inner tube 89A of the second pipe section 89.

Be respectively arranged with protective cover 87C, 89C in the first pipe section 87 and the second pipe section 89.For protective cover 87C, 89C; a plurality of circular holes with the perforated metal shape be formed through; preventing that the first pipe section 87 and the second pipe section 89 from being cooled off by surrounding air, and be installed on the carriage that the outer peripheral face at the first outer tube 87B and the second outer tube 89B welds by bolt etc.

For each protective cover 87C, 89C, the cross section is that circular arc and integral body are cydariform (Gutter shape), and be installed into the first pipe section 87 that covers and the second pipe section 89 outer peripheral face roughly half, namely cover the zone of facing mutually with grain collecting box 5.Thereby, if the operator with grain collecting box 5 swinging operation to maintenance position, then with the right side wall open row tracheae XP of sheller unit 4, but be in the state that protected cover 87C, 89C cover on the whole length roughly from operator's blast pipe XP.But blast pipe XP passes along the vertical direction the gap of extending between the right side wall that vertically send paddy device 61 and sheller unit 4 that arranges, and vertically send paddy device 61 position behind to omit protective cover 87C being equivalent to this.

Protective cover 87C, 89C are from the outer peripheral face configured separate of the second outer tube 89B of the outer tube of the first pipe section 87 and the second pipe section 89.And protective cover 87C, 89C are not limited to the perforated metal shape, for example also can be the mesh shapes.

Blast pipe XP is supported for from the both sides side of grain collecting box 5 and sheller unit 4 and roughly is in equidistance.Can be with grain collecting box 5 around longitudinal axis center X2 formation of swinging operation freely between job position and maintenance position in order to make, blast pipe XP is supported on the side of sheller unit 4, rather than is supported on the grain collecting box 5.More particularly, blast pipe XP is supported via 4 supports of the side that is fixed on sheller unit 4.

(waste gas control cover)

Such as Figure 13～shown in Figure 16, near the waste gas outlet 89E of the rear end that is positioned at the second pipe section 89, be provided with to the waste gas of discharging from blast pipe XP towards the waste gas control cover 90 of controlling.Waste gas control cover 90 has: base end part 90A, and it two-partly one-sidedly is made of by cutting along the plane in axle center to be divided into cylinder roughly, and cross section semicircular in shape shape, and be installed into can be with respect to carrying out swinging operation near the rear end of the second pipe section 89; And leading section 90B, rearward extend its rear end from base end part 90A.Base end part 90A is the part drum, but leading section 90B is the part truncated cone shape that diminishes gradually along with near position, rear radius.

Near the two ends on the circumferencial direction of the base end part 90A of waste gas control cover 90, be formed with a pair of through hole HR, HL.Through hole HR, HL by with waste gas control cover 90 with above in the situation of open attitude configuration, observe the first through hole HR that is positioned at the right side and observe the second through hole HL that is positioned at the left side from rear side from rear side and consist of.

On the other hand, wait two groups of installation brackets that are provided with for waste gas control cover 90 is installed by welding in the rear end of the second pipe section 89.Installation bracket is made of 92A, 92B 91A, 91B and the second carriage the first carriage, wherein the first carriage tilts oppositely on 45 ° the direction of angle when observing the second pipe section 89 from rear side to counter clockwise direction with respect to level to 91A, 91B, and the second carriage is then opposite on above-below direction to 92A, 92B.

The first carriage is made of base end part Mb and fastener Me 91A, 91B, wherein base end part Mb waits near the rear end of the second inner tube 89A of the second pipe section 89 that is fixed on and the second outer tube 89B by welding, and fastener Me extends to rear side from the end of the radial outside of base end part.Be positioned in the second pipe section 89 of observing from rear side on the fastener Me of the second carriage 92A below depending on top-right the first carriage 91A and being positioned at, be equipped with towards the outstanding locking pin 93 of radially inner side.On the other hand, on the fastener Me of the second carriage 92B above the second pipe section 89 of observing from rear side is positioned at the first carriage 91B below keeping left and is positioned at, the nut part 94 that radially extends in female axle center is installed.

Figure 15 represents waste gas control cover 90 is installed in the first carriage to the state on 91A, the 91B, at first, the first through hole HR of waste gas control cover 90 embedding mode beyond the radially inner side is locked locking pin 93 at the first carriage 91A, then, overlapping with the radial outside of the first carriage 91B near the second through hole HL with waste gas control cover 90, and will screw togather with nut part 94 from the bolt 95 that radial outside inserts, cover the state that leans on bottom-right semicircular area in the peristome of 90 coverings the second pipe section 89 thereby become waste gas control.Under the state of loose bolts 95 a little, can be with the axis swings operation of waste gas control cover 90 around each center between the nut part 94 of the locking pin 93 that connects the first carriage 91A and the first carriage 91B.At this, if for example with leading section 90B fastening bolt 95 again under the state of the radially inner side displacement of the second pipe section 90, then waste gas is guided to the upper left side, and can suitably control meticulously exhaust gas direction according to the pendulum angle of waste gas control cover 90.

Among Figure 16 (a), opposite states ground with Figure 15, at first, the second through hole HL of waste gas control cover 90 embedding mode beyond the radially inner side is locked locking pin 93 at the first carriage 91A, then, overlapping with the radial outside of the first carriage 91B near the first through hole HR with waste gas control cover 90, and will screw togather with nut part 94 from the bolt 95 that radial outside inserts, thus the state that leans on upper left semicircular area in the peristome that waste gas control cover 90 covers the second pipe section 89 become.

Among Figure 16 (b), the locking pin 93 of the second carriage 92A that the second through hole HL of waste gas control cover 90 embedding mode beyond the radially inner side is locked at downside, then, with overlapping with the radial outside of the second carriage 92B of upside near the first through hole HR of waste gas control cover 90, and will screw togather with nut part 94 from the bolt 95 that radial outside inserts, thereby become the state that the semicircular area on right side in the peristome of 90 coverings the second pipe section 89 is covered in waste gas control.

Equally, among Figure 16 (c), the locking pin 93 of the second carriage 92A that the first through hole HR of waste gas control cover 90 embedding mode beyond the radially inner side is locked at downside, then, with overlapping with the radial outside of the second carriage 92B of upside near the second through hole HL of waste gas control cover 90, and will screw togather with nut part 94 from the bolt 95 that radial outside inserts, thereby become the state that the semicircular area in left side in the peristome of 90 coverings the second pipe section 89 is covered in waste gas control.

Among Figure 14～Figure 16, when observing the second pipe section 89 from rear side, the first carriage is opposite on 45 ° the direction of angle of tilting to counter clockwise direction with respect to level to 91A, 91B, the second carriage is opposite on above-below direction to 92A, 92B, but the first carriage is not limited to this to 91A, 91B and the second carriage to each opposed angle of 92A, 92B, also can carry out various distortion.For example, also can be opposite in the horizontal direction when observing from rear side to 91A, 91B with the first carriage, the second carriage is implemented 92A, 92B opposed mode on above-below direction.

(unloading the bottom covered structure of paddy device)

Such as Figure 17～shown in Figure 20, be provided with metal side cover 5B at the rear of grain collecting box 5, from right side and rear side cover unload paddy device 6 near, and be positioned at the elbow carrier pipe 32 bottom that unloads paddy device 6 near, covered from right side and rear side by bulge (the Ha Application プ) 96 of the rubber system of installing in the lower end of side cover 5B.

Shown in Figure 20 (b), the bulge 96 of the state before installing is roughly rectangular tabular, is formed with 4 main installing hole 96H in the upper edge of bulge 96, is formed with forwardly 1 auxiliary slotted hole 96L near the lower end.

In addition, from the support 97 of fixing in the part of organism frame 2F, forwards extend bar-shaped mount pin 5P, near the lower end of side cover 5B, also be formed with 4 installing holes corresponding with 4 main installing holes of bulge 96.

As understandable from Figure 20 (a), when bulge 96 is installed, at first, in the auxiliary slotted hole 96L of bulge 96, insert mount pin 5P, then, on one side with the side stretching backward such as the rearward end of bulge 96, on one side that the top edge position of bulge 96 is configured in the lower end of side cover 5B is inboard, and be fixed by the bolt 98 that in 4 installing holes of 4 main installing hole 96H of bulge 96 and side cover 5B side, inserts and nut etc.

And the upper edge of bulge 96 possesses: the Your Majesty's edge part 96A on the front that roughly extends abreast with lower edge portion; And along with the downward-sloping auxiliary upper edge 96B of mode that moves closer to lower edge portion from Your Majesty's edge part 96A near rear side.Under the state before installation, the main installing hole 96H of rear side is configured near the upper end of rear end of auxiliary upper edge 96B of inclination.On the other hand, near 4 installing holes that form the lower end of side cover 5B are all roughly along horizontal.At this, if be fixed with bolt 98 and nut etc. after near the corresponding installing hole the lower end of the main installing hole 96H of the rear side of bulge 96 and side cover 5B aimed at, the state that then relies on inboard (the close paddy device 6 that unloads) with the lower end of bulge 96 near the corner section the right lateral side end of bulge 96 under overlooking is mounted.

(other embodiments)

The upper edge that＜1〉also can make regulating wheel 48 press driving belt 47 to downside increases the tension force of driving belt 47.

＜2〉the utility model also goes for the combine of following mode, namely not to utilize the driving belt 47 that is wound on the input belt pulley 46 that rotates with bottom auger 31S one, but utilize one group of bevel gear to link horizontal final output shaft and the bottom auger 31S that is driven by the dynamic rotation of engine E, and carry out the transmission of the power from engine E to the bottom auger 31S that discharges conveying plant 31.

In this mode, by in the way of described horizontal final output shaft, arrange can be mutually the spline structure that breaks away from of buckle laterally, grain collecting box 5 can be switched to maintenance position, and not need driving belt 47 is unloaded inferior operation from input belt pulley 46.

In the combine of this mode, connect with the input belt pulley (example of drive pulley) of the output shaft one rotation of engine E and with the driving belt of the input belt pulley of described final output shaft one rotation on, discharge clutch of the present utility model is set gets final product.

＜3〉also can implement with following formation, be about to action bars 53 and be divided into the short operation bar 53 of upside and the long action bars 53 of downside, lock the short operation bar 53 of upside at the front end of motion arm 20, and between the longest action bars 53 of this short operation bar 53 and downside, helical spring 54 and turnbuckle 55 are installed in series.The up and down order of helical spring 54 in this case and turnbuckle 55 is not particularly limited.

The technology that the utility model can be used as following combine is used, namely dispose driver seat and engine in the forward position of the body that travels, rear at them disposes the grain collecting box that stores grain, and possesses paddy device and transmission, disconnection are delivered to the driving force of unloading the paddy device from engine the discharge clutch that unloads of discharging grain from this grain collecting box, the discharge clutch appliance is standby: driving belt, and it is wound on the drive pulley of the output shaft rotation by engine and unloads between the input belt pulley that the paddy device links to each other with described; And regulating wheel, it applies tension force to described driving belt, also can be used in common combine.

Claims (10)

1. a combine is characterized in that,

Dispose driver seat and engine in the forward position of the body that travels, rear at them disposes the grain collecting box that stores grain, and possess from this grain collecting box discharge grain unload the paddy device and transmission, disconnection are delivered to the described discharge clutch that unloads the driving force of paddy device from described engine

Described discharge clutch appliance is standby: driving belt, and it is wound on the drive pulley of described engine rotation with described and unloads between the input belt pulley that the paddy device links to each other; And regulating wheel, it applies tension force to described driving belt,

The first bar of formation action bars and second bar and the draft helical spring shorter than this first bar in series are installed between the transmission opening operation parts that dispose by the described driver seat and described regulating wheel, and described draft helical spring is configured in the top of described the first bar.

2. combine according to claim 1 is characterized in that,

Described transmission opening operation parts possess the motion arm by the discharge bar swinging operation that disposes at described driver seat, and described draft helical spring locks between the upper end of the service portion of described motion arm and described action bars.

3. combine according to claim 1 and 2 is characterized in that,

Between described transmission opening operation parts and described regulating wheel, the length adjustment mechanism of the length that changes described action bars also is installed, described length adjustment mechanism and described draft helical spring are configured in the top of described the first bar.

4. combine according to claim 2 is characterized in that,

Described action bars is configured to, and is being in the situation of perpendicular attitude, and the upper-end part of driving of this discharge bar is higher than the upper end of the backrest of driver seat.

5. combine according to claim 3 is characterized in that,

Described length adjustment mechanism is arranged near the upper surface of the section of taking one's seat of described driver seat.

6. combine according to claim 1 and 2 is characterized in that,

Install at the body inside line of described driver seat and to be equipped with panel part,

On the discharging operation panel that the rear that described transmission opening operation parts are supported on described panel part disposes.

7. combine according to claim 6 is characterized in that,

By consisting of on the top board of described discharging operation panel so that discharge the swing boundary that described discharge bar is stipulated at the both ends of the slotted hole that mode that bar inserts forms.

8. combine according to claim 6 is characterized in that,

By stipulate the swing boundary of described discharge bar at the stop component of the inside of described discharging operation panel setting.

9. combine according to claim 2 is characterized in that,

Described discharge bar is configured to, and under side-looking, the top of the air cleaner that the operating area of described discharge bar and the rear position of described driver seat possess is overlapping.

10. combine according to claim 1 and 2 is characterized in that,

Described helical spring is disposed near the up and down centre of backrest of described driver seat.

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