KR101179345B1 - Combine-harvester - Google Patents

Abstract

The combiner provided with the engine bonnet 21 and the driver's seat 51 supported by the engine bonnet is provided to the driver 50. In this combine, the engine bonnet 21 and the driver's seat 51 are in the closed state in which the engine bonnet 21 covered the engine 28 around the vertically-oriented opening / closing axis X, and the engine bonnet 21 is the engine ( It is comprised so that switching to the open state which opened 28, and the opening-and-closing shaft center X is behind the engine 28 in the apparatus main body front-back direction, and an outer edge part of the said engine 28 in an apparatus main body transverse direction It is arrange | positioned inside 28b.

Engine, Arm, Engine Bonnet, Combine

Description

Combines {COMBINE-HARVESTER}

The present invention relates to a combine, and more particularly, to a combiner having an engine bonnet and a driving seat supported by the engine bonnet.

Some of the combines described above have been disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-136823 and Japanese Patent Application Laid-Open No. 2004-34780.

In Japanese Patent Application Laid-Open No. 2001-136823, the driver's seat is attached to the upper surface of the engine cover. The cover body which integrated the handle top, the step, the engine cover, and the side plate is supported by the apparatus main body frame through the support point metal member. The cover body is rocked slightly transversely outward about the longitudinal support point of the support point metal member, and swings upwardly around the transverse support point of the support point metal member, so that the engine cover and the driving seat are lifted and rotated relative to the machine body frame. , The engine is opened.

In the Japanese Patent Application Laid-Open No. 2004-34780, the driver's seat is supported by the engine bonnet. The engine bonnet is supported so that the bonnet support can be opened and closed by a bonnet support, and the bonnet support is connected to the machine main body frame so as to be rotatable around the machine main body vertically oriented pivot axis below the bottom plate front end side of the driving unit. As the engine bonnet is opened sideways and the bonnet support is rotated around the pivot axis, the engine bonnet and the driver's seat pivot around the pivot axis outward to the instrument body frame and the engine opens. .

[Document 1] Japanese Unexamined Patent Application Publication No. 2001-136823

[Document 2] Japanese Patent Application Laid-open No. 2004-34780

[Document 3] Japanese Unexamined Patent Application Publication No. 2000-4641

[Document 4] Japanese Unexamined Patent Application Publication No. 2006-77811

[Document 5] Japanese Patent Application Publication No. 2002-95335

When the engine can be opened by employing the technique disclosed in Japanese Patent Application Laid-Open No. 2001-136823, the engine bonnet and the driver's seat rotate around the center of the machine body in the transverse direction. For this reason, in order to be able to open an engine in the state in which there is no work obstacle from above, it is necessary to raise an engine bonnet, a driving seat, etc. from a closed state to a high place. Then, opening and closing operation tended to be heavy.

When the engine was opened by employing the technique disclosed in Japanese Patent Application Laid-open No. 2004-34780, the engine bonnet and the driver's seat were largely protruded laterally and laterally from the main body when the engine was opened.

SUMMARY OF THE INVENTION An object of the present invention is to allow the engine to be opened without obstacles upwards, to easily move and operate the engine bonnet and the driving seat, and to protrude out of the apparatus main body of the engine bonnet and the driving seat that have been opened. To provide a combine that can suppress the.

In order to achieve the above object, the present invention provides a combiner having an engine bonnet and a driving seat supported by the engine bonnet, wherein the engine bonnet and the driving seat are arranged around a vertically oriented opening and closing shaft. It is comprised so that switching to the closed state which covered this engine, and the said engine bonnet to the open state which opened the said engine, and the said opening-and-closing center is behind the engine in the apparatus main body front-back direction, and in an apparatus main body transverse direction It is arrange | positioned inside the outer edge part of the said engine, It is characterized by the above-mentioned.

According to this configuration, the engine can be opened by rotationally moving the engine bonnet and the driver's seat in an arrangement height state that is the same as or approximately equal to the placement height in the closed state. In addition, the engine bonnet and the driver's seat in the open state are located on the rear side of the engine as much as possible, and the engine can be opened in a state where the amount of protrusion of the engine bonnet and the driver's seat from the main body of the machine to the outside is as small as possible.

As a result, the engine bonnet and the driver's seat, which are in an open state, are located on the rear side of the machine body rather than the engine, and there is no obstacle such as the engine bonnet above the engine, and the engine can be opened in a state where inspection work is easy to be performed. In addition, the engine bonnet and the driver's seat can be rotated and moved easily at the same placement height as the placement height in the closed state and can be easily opened. In addition, the amount of protrusion of the engine bonnet and the driver's seat outside the main body of the driver seat in the open state can be suppressed, and the engine bonnet or the like is hard to become an obstacle of work, and thus, inspection work and the like are easy to perform.

In addition to the above configuration, if a support frame coupled to the machine main body is provided around the shaft core parallel to the opening and closing shaft center, and the loose end side of the engine bonnet is slidably supported on the loose end side of the support frame. It is further advantageous in the following points.

According to this configuration, when the engine bonnet is opened and closed, the loose end side of the engine bonnet swings the support frame while slidingly moving with the support frame, and supports the load of the engine bonnet in which the support frame opens and rotates.

Thereby, as long as the load of the engine bonnet is supported by the support frame, the engine bonnet can be smoothly and lightly rotated, and the opening and closing operation of the engine bonnet can be performed more lightly.

In addition to the above configuration, the driving unit includes a driving unit floor and a control tower positioned in front of the driving seat, a horizontal wall partitioning the inside and the outside of the driving unit from a transverse side of the driving unit floor, and a horizontal one side of the driving seat. If an operation panel located at is provided, it is further advantageous in the following points.

According to this configuration, when the engine bonnet is rotated in the open state and the engine is opened, the control tower, the side wall, the operation panel, and the driving unit bottom also rotate together with the engine bonnet at once, and the appliance main body at the engine front side is also opened.

As a result, the engine and the apparatus main body at the front of the engine can be quickly opened, and in addition to the inspection of the engine and the like, the inspection of the electric system from the engine to the traveling device and the mowing pretreatment unit can be efficiently performed. In addition, the engine front side is opened in an easy-to-work state, and the engine bonnet, the driving floor, and the like are easily moved at a placement height equal to or almost the same as the placement height in the closed state, which is advantageously inspected from this surface. Can be done.

In addition to the above configuration, a support pillar is fixed to the main body of the apparatus, and on the support pillar, a rotation connecting portion of the engine bonnet is rotatably supported around the opening / closing axis, and the support pillar connects the rotation connecting portion. If height is arrange | positioned higher than the upper end of the said engine, it is more advantageous at the following points.

According to this structure, in performing the assembly and attaching work of the engine bonnet, it becomes easy to carry out in view of the work which carries in an engine bonnet from the exterior of an apparatus main body inside.

That is, when the part connecting the rotation connection part of the engine bonnet of a support column is located lower than the uppermost part of an engine, arrangement | positioning with respect to the apparatus body frame of an engine bonnet when the engine bonnet becomes the assembly attachment state rotatably connected to the support column The engine bonnet is supported by the loading apparatus at a supporting height lifted larger than the height, and the engine bonnet is carried in from the outside of the main body of the apparatus while maintaining the engine bonnet at the supporting height. That is, when the engine bonnet moves above the engine, the engine bonnet is brought into the main body of the apparatus, while avoiding contact of the rotary connecting portion of the engine bonnet with the engine or the like. Then, when the rotation connection part of an engine bonnet is located above a support pillar, it is necessary to employ | assemble the assembly attachment method of lowering operation of an engine bonnet and connecting a rotation connection part to a support pillar. On the other hand, according to the structure of this 4th invention, an engine bonnet is supported by an import apparatus at the support height which does not differ greatly from the arrangement height with respect to the apparatus main body frame in the assembly attachment state, and the support height is external to the apparatus main body. Even if the assembly attachment direction of carrying in from inside is employ | adopted, an engine bonnet can be carried in the inside of an apparatus main body, avoiding contact of an engine bonnet with an engine. And when this assembly attachment direction is employ | adopted, if the rotation connection part of an engine bonnet is located above a support pillar, only the engine bonnet may be operated to lower a little, and the rotation connection part of an engine bonnet can be connected to a support pillar.

Thereby, the assembly and attachment work of the engine bonnet can be performed quickly and efficiently, and the cost can be reduced.

In a preferred embodiment, a mechanical linkage mechanism for interlocking an operation unit of an operation target device installed on the apparatus main body with an operation tool provided on the driving unit is provided, and the mechanical linkage mechanism is provided with a first linkage member supported by the steering wheel. A second interlocking member supported by the apparatus main body, and a coupling means is provided over the first interlocking member and the second interlocking member; It is comprised so that switching to the detached state which isolate | separated the member, When the said drive part is switched to the open state, the said coupling means switches to the detached state by the relative distance of the said both interlocking members, and the said drive part is the said closed state When it is switched to, it is configured to switch to the engaged state by the relative approach of the two interlocking members. This configuration is further advantageous in the following points.

The above-mentioned combine can normally open the apparatus main body part covered by the steering wheel at the time of inspection, repair, etc.

As a conventional combine of this kind, there exist some which are disclosed by Unexamined-Japanese-Patent No. 2000-4641, for example. Japanese Patent Application Laid-Open No. 2000-4641 discloses a structure (corresponding to a steering wheel) in which a bonnet equipped with a driver's seat, a boarding step, and a control tower are integrally formed. This structure is supported by the traveling device main body so as to be swingable open and close around the longitudinal axis, and is displaced to a working position where the bonnet covers the engine and a maintenance position spaced apart from the engine.

In the case of the combine, when an operation target device such as a transmission device installed on the main body of the machine and an operation tool installed on the steering wheel are linked by an electric linkage means, when the steering wheel is opened or closed, the connection between the operation target device and the operation tool is established. It is easy to configure so that a steering wheel can swing and open | release with the operation object apparatus and an operation tool in the connected state so that labor of breaking is unnecessary. In this case, however, it is necessary to include an actuator for driving the operation target device, a detection means for detecting the operation position of the operation tool, and a control means for operating the actuator based on the detection result by the detection means. As a result, the cost tends to increase.

On the other hand, according to the said structure of this invention, when opening / closing a steering wheel, a coupling means is switched to a disengagement state by the relative space | interval of the 1st interlocking member and the 2nd interlocking member accompanying an open swing of a steering wheel, The operation target device is in the disconnected state. Further, the engagement means is switched to the engaged state by the relative approach of the first interlocking member and the second interlocking member accompanying the closing swing of the steering wheel, and the operating tool and the operation target device are in the interlocking state. Thereby, the steering wheel can be opened without the trouble of disconnecting the operating tool and the operation target device while the operating tool and the operation target device are interlocked by the mechanical interlocking mechanism.

Therefore, a combine that can efficiently perform inspection and repair work by opening the steering wheel without the trouble of disconnecting the operating tool and the device to be operated, with the operating tool and the device being operated by a mechanical interlocking mechanism, Can be obtained by saving.

In a preferred embodiment, a mowing portion, a traveling transmission, and a mowing transmission device for transmitting a shifting power to a power input portion of the mowing portion are provided, and the engine and the traveling transmission are connected to each other so as to transmit power, and the engine And the mowing transmission device are linked so as to transmit power, and the mowing transmission device is arranged near the power input part of the mowing part. This configuration is further advantageous in the following points.

Conventionally, the mowing transmission device has been installed in a traveling mission case (for example, see Japanese Patent Laid-Open No. 2006-77811).

Since the mowing transmission device was installed in the traveling mission case, the free installation position selection of the mowing transmission device was restricted. Therefore, the transmission structure from the harvesting transmission to the power input of the harvesting section becomes large, and both the electric system from the engine to the traveling mission case and the transmission system from the harvesting transmission to the power input of the harvesting section are used for the driving mission case. Since it is arranged as a starting point, congestion of the electric system may occur (in this case, the engine power is transmitted to the driving mission case (driving transmission), and the state is transmitted from the driving mission case to the power input unit of the harvesting unit). ].

On the other hand, according to the said structure of this invention, by setting it as the structure which arrange | positions a mowing transmission apparatus outside a traveling mission case, it was possible to arrange the mowing transmission apparatus in the vicinity of the power input part of a mowing part. As a result, power is transmitted from the engine to the traveling mission case (driving transmission), and power is transmitted from the engine to the mowing transmission device, thereby eliminating the need for an electric system from the driving mission case to the power input of the mowing transmission device. From this, it was possible to avoid the congestion of the electric system from the traveling mission case to the power input unit.

Therefore, by carrying out a simple retrofit by arranging the mowing transmission outside the traveling mission case, the mowing transmission can be arranged near the power input unit, and at the same time, the electric system from the engine to the mowing transmission can be constructed. Could dodge.

In addition to the above configuration, the harvesting section is configured to be switchable between a work posture positioned in front of the apparatus main body and a non-working posture evacuating from the front of the apparatus main body, and at the same time as the power input unit of the harvesting unit. An output gear for outputting shifting power of the harvesting transmission device is provided, and an input gear for introducing the shifting power to the power input unit is provided in the harvesting transmission device, and the output gear and the input gear can be engaged and disengaged from each other. If it is comprised so, it is more advantageous from the following points.

In a conventional harvesting transmission device, an output pulley is provided in the traveling device main body, an input pulley is provided in the harvesting unit, and the output pulley and the input pulley are provided to output the shifting power of the harvesting transmission device to the power input unit. The belt was wound so as to allow power transmission (for example, see Japanese Patent Application Laid-Open No. 2002-95335).

In the invention described in Japanese Patent Application Laid-Open No. 2002-95335, in the case where the cutting section is switched to the non-working posture, the belt spanning the output pulley provided on the traveling machine body and the input pulley provided on the harvesting section can be removed. It is necessary, and when returning a harvesting | reaping part to a work posture, it is necessary to install a belt. Therefore, attaching and detaching work of the belt was necessary and the work was complicated.

On the other hand, according to the said structure, when the cutting part is switched to a non-working posture, since the power input part of the cutting part will become a state away from the mowing transmission device, space can be secured around the mowing transmission device, and maintenance work will be performed. It becomes easy.

Moreover, in order to transmit power from the harvesting transmission to the power input part of a harvesting | reaping part, this is achieved by making the output gear which belongs to a traveling machine main body, and the input gear which belongs to a harvesting part engageable and disengaged. Therefore, when switching a harvesting | reaping part to a non-working posture, the operation | work which removes a belt like a conventional thing is not necessary, and the troublesome work can be eliminated.

Therefore, maintenance work on the mowing transmission device becomes easy, and when switching the mowing part to the non-working posture, it is not necessary to perform auxiliary work such as removing the belt other than the work required for switching, thereby making the work complicated. Could resolve.

Other feature configurations and advantageous effects exerted from the feature configurations will become apparent by reading the following description with reference to the accompanying drawings.

According to the present invention, while the engine can be opened without obstacles upward, the engine bonnet and the driving seat can be easily moved and operated, and the amount of protrusion of the engine bonnet and the driving seat out of the machine body in the open state can be controlled. A combine which can be suppressed can be provided.

Best Mode for Carrying Out the Invention Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment]

1 is an overall side view of a combine according to an embodiment of the present invention. 2 is an overall plan view of a combine according to an embodiment of the present invention. As shown in these drawings, the combine according to the embodiment of the present invention is connected to an apparatus main body having a crawler traveling device (an example of a traveling device) 1 and a front portion of the apparatus main body frame 2 of the apparatus main body. The threshing apparatus 3 and the grain tank 4 which are mounted side by side in the horizontal direction of an apparatus main body in the harvesting | reaping part 10 and the said apparatus main body frame 2 are provided.

This combine harvests grains such as rice and barley. That is, the harvesting section 10 is operated by swinging the main frame 11 of the harvesting section 10 up and down with respect to the apparatus main body frame 2 by a hydraulic cylinder (not shown). The grass dividing sphere 12 positioned side by side in the harvesting section transverse direction at the front end is operated in a descending working state positioned near the ground, and in the rising non-working state in which the branch dividing sphere 12 is elevated from the ground. When the apparatus main body is driven with the harvesting | reaping part 10 in a descending work state, the harvesting | reaping part 10 is an upright path | route which arrange | positions the planting grain stem of a harvesting target by said each said grass dividing hole 12 behind. A standing grain stem introduced to each of the standing paths 13 and positioned at the end of the standing path 13 while standing up by the standing device 14 positioned on the transverse side of the standing path 13. The harvesting process is performed by the harvesting device 15 of the Varican type, and the harvesting grain stem from the harvesting device 15 is conveyed to the back of the apparatus main body by the supply device 16 and supplied to the threshing device 3. The threshing apparatus 3 feeds the ear tip side of a harvesting grain stem to a supply chamber (not shown), holding the bottom side of a harvesting grain stem by a threshing feed chain (not shown), and conveying it back to an apparatus main body. And the ear tip side is threshed. The grain tank 4 collects and stores the threshing grain conveyed from the threshing apparatus 3. The grain tank 4 includes a discharge screw 5 located at the bottom of the tank, a longitudinal screw conveyor 6 located at the rear of the grain tank 4, and an upper end of the hetero screw conveyor 6. The threshing grain in a tank is discharged | emitted by the horizontal screw conveyor 7 connected to it. The horizontal screw conveyor 7 can pivot and undulate with respect to the longitudinal screw conveyor 6.

In addition to the crawler traveling device 1 and the apparatus body frame 2, the apparatus main body includes a prime mover 20 having an engine bonnet 21 located near the front of the grain tank 4; A driver 50 having a driver's seat 51 located above the engine bonnet 21 is provided.

4 is a side view of the prime mover 20. 5 is a plan view in a state where the top plate 22 of the engine bonnet 21 of the prime mover 20 is removed. 7 is a rear side view of the prime mover 20. FIG. 8 is a rear view of the heat sinks 25 and 26 in the state where the heat sinks 20 are removed. As shown in these figures, the prime mover 20 includes the engine bonnet 21 and an engine cooling radiator 27 disposed inside the machine main body transversely outer end of the engine bonnet 21. And an engine 28 arranged inside the machine main body in the transverse direction of the engine cooling radiator 27 inside the engine bonnet 21 (running power and harvesting work power from the engine 28). Will be described in detail in the second embodiment]. The prime mover 20 further covers the rear side of the engine 28 so as to prevent the rearrangement of the prime mover 20 from rearward, and the upper end of the rear end of the engine bonnet 21. The intake case 29 provided continuously and the air cleaner 30 provided in this intake case 29 are provided.

5, 7 and 8, the engine 28 includes a cooling fan 31 connected to one end side of the engine 28 and an output pulley 32 connected to the other end side of the engine 28. As shown in FIG. And a cooling fan 31 is located on the outside of the main body of the apparatus, and the output pulley 32 is supported by the supporting body 33 on the main body frame 2 in a mounting posture located inside the main body of the apparatus. The cooling fan 31 is driven and rotated by the engine 28, and the air outside the engine bonnet 21 is transferred from the inlet port 23a of the transverse wall 23 of the engine bonnet 21 to the inside of the engine bonnet 21. Is sucked in, and cooling air is generated and supplied to the engine cooling radiator (27). In addition, the cooling fan 31 joins the air inside the intake case 29 to the cooling air from the intake port 23a of the engine bonnet 21 and supplies it to the engine cooling radiator 27. The output pulley 32 transmits the output of the engine 28 to the traveling apparatus 1, the harvesting unit 10, and the threshing apparatus 3. The engine cooling radiator 27 is supported by the radiator frame 34 fixed to the apparatus main body frame 2. As shown in Fig. 8, the radiator frame 34 is connected via an upper end of the radiator frame 34 and a support frame 36 connected over the upper end of the support column 35 standing up on the apparatus main body frame 2. It is also supported by the support pillar 35. The heat dissipation plate 25 is connected to the support pillar 35 and the radiator frame 27 and serves as a reinforcing member of the radiator frame 27. As shown in FIG. 7, the heat sink 25 is provided with the management tool 37a which can be opened and closed by the removable cover plate 37. As shown in FIG. As shown in FIG. 8, this management tool 37a inspects and adjusts the fan switching device 38 equipped with the engine 28. As shown in FIG. The fan switching device 38 includes a fan gear 38b linked to a switching operation unit (not shown) of the cooling fan 31 via an operation wire 38a, and a speed reduction mechanism linked to the fan gear 38b. (38c) and an electric motor (38d) interlocked with this deceleration mechanism (38c), and switching the cooling fan 31 to the cooling state and the vibration damping state by the driving force of the electric motor 38d. . The cooling fan 31 switched to the cooling state intakes air from the intake port 23a and the intake case 29 of the engine bonnet 21 so as to introduce cooling air into the engine cooling radiator 27. The cooling fan 23a switched to the damping state is blown to the intake port 23a to blow off the dust attached to the inlet port 23a of the engine bonnet 21. The air cleaner 30 is connected to the intake manifold 28a of the engine 28 via an inlet hose 30a made of a bellows hose, and is formed inside the intake case 29 by the intake action of the engine 28. Air is sucked in and dust is removed, and the air after vibration is supplied to the engine 28 as combustion air. The inlet port 29a of the intake case 29 of the intake case 29 is formed by providing a plurality of through holes in the lateral wall of the intake case 29. The intake port 29b at the rear of the apparatus main body of the intake case 29 is provided with a swept net. The horizontal wall of the intake case 29 is integrally formed with the horizontal wall 23 when the horizontal wall 23 of the engine bonnet 21 is formed by molding the resin material.

4 shows the structure of the engine bonnet 21 when viewed from the side of the appliance main body. Fig. 5 shows the structure when viewed from the plane of the apparatus main body with the top plate 22 of the engine bonnet 21 removed. Fig. 7 shows the structure of the engine bonnet 21 when viewed from the rear of the appliance main body. As shown in these figures, the engine bonnet 21 includes the ceiling plate 22 covering the upper side of the engine 28 and the engine cooling radiator 27, and the apparatus main body of the engine 28 and the engine cooling radiator 27. In addition to providing the transverse wall body 23 which covers the transverse outer side, the front side wall board 24 which covers the front of the engine 28 is comprised.

As shown in Figs. 4 and 5, the engine bonnet 21 includes a triangular chamfer 21a provided in a corner portion located on the machine main body transversely outer side on the engine bonnet front end side. This chamfer 21a forms the outward surface of the corner part which faces the hatch of the engine bonnet 21 as the inclined surface located in the apparatus main body, so that the engine bonnet 21 may raise and lower the obstacle to the drive part 40. It is hard to be. As shown in FIG. 7, the heat sink 26 is provided on the rear side of the engine bonnet 21. This heat sink 26 covers the space between the intake case 29 and the heat sink 25, and makes it difficult for the heat sink 20 to be arranged rearward. The lower end part 26a of the heat sink 26 of this bonnet side is piled up in the upper end part of the heat sink 25 of the said apparatus main body side, and the apparatus main body front-back direction, and the heat dissipation effect is improved. This lower end part 26a is superimposed on the outer surface side of the heat sink 25 of the apparatus main body side so that the engine bonnet 21 may not be opened. As shown in Fig. 4, the inlet port 23a of the transverse wall 23 forms a plurality of through holes in the transverse wall 23.

As shown in Figs. 5 and 8, the rotary connecting portion 39a made of a cylindrical body provided through the connecting member 39 on the outside of the rear side of the engine bonnet 21 is erected on the apparatus main body frame 2. It is rotatably connected to the support part 35a located in the upper end part of the support pillar 35. Thereby, the engine bonnet 21 is supported to rotate around the apparatus main body up-and-down orientation drive part opening-and-closing axis X (henceforth abbreviating as opening-and-closing axis X) which the said support part 35a has. The opening / closing shaft X is located behind the machine main body rather than the engine 28, and is disposed inside the outer end 28b (see Fig. 8) in the machine main body transverse direction, which is composed of the crankshaft end of the engine 28. It is. More specifically, this opening and closing shaft X is arrange | positioned within the range of the width | variety of the engine bonnet 21 (in this embodiment, to the left rear part of the engine bonnet 21). Moreover, the said support part 35a is located in the mounting height higher than the upper end part 28c which consists of an upper end part of the intake manifold 28a of the engine 28. As shown in FIG.

That is, the engine bonnet 21 is rotatable switchable as shown in FIG. 2, FIG. 3, and FIG. FIG. 2 shows a state in plan view in the closed state of the engine bonnet 21, and FIG. 3 shows a state in plan view in the open state of the engine bonnet 21. FIG. The engine bonnet 21 shown by the solid line in FIG. 6 shows a closed state, and the engine bonnet 21 shown by the dashed-dotted line shows an open state. As shown in these figures, the engine bonnet 21 is rotated around the opening / closing axis X so that the engine bonnet 21 is located in the front of the main body of the device rather than the opening / closing axis X to cover the engine 28. It is located in the apparatus main body rear side rather than the engine 28, and is switched to the open state which opened the engine 28. As shown in FIG. When the engine bonnet 21 is closed, the locking portion 39b of the connecting member 39 is coupled to the supporting member 40 fixed to the apparatus main body of the threshing apparatus 3, and the rotary connecting portion 39a is supported by the threshing apparatus 3 via the support member 40. As shown in FIG. The locking portion 39b detaches itself from the support member 40 by a rotation operation toward the open state of the engine bonnet 21.

9 is a plan view of the engine bonnet support structure. As shown in this figure, the engine bonnet support structure is parallel to the opening / closing axis X in a bracket 41 which is disposed on the apparatus main body frame 2 and disposed on the apparatus main body transversely outside than the support pillar 35. A support frame (an example of a bonnet support member) 42 supported to swing around an axis P, and a bonnet frame 43 along the lower side of the front side wall plate 24 and the transverse wall 23 of the engine bonnet 21. And a connecting member 44 provided over the horizontal frame portion 52a of the driving unit bottom frame 52 and the loose end side of the supporting frame 42. The support frame 42 is provided with the guide groove 42a provided in the loose end side of the support frame 42. As shown in FIG. The connecting member 44 is connected to the horizontal frame portion 52a at the upper end side, and is coupled to the guide groove 42a via a roller provided at the lower end side of the connecting member 44.

That is, when the engine bonnet 21 is rotated and operated, the support frame 42 follows the engine bonnet 21 for operation through the driving unit bottom frame 52 and the connecting member 44 by the engine bonnet 21. And the load on the loose end side of the rotating engine bonnet 21 is supported via the driving unit bottom frame 52 and the connecting member 44.

2 shows the structure of the driving unit 50 in plan view. 4 shows a structure when viewed from the side of the driver 50. As shown in these figures, the driver 50 includes the driver's seat 51, a driver's floor 53 and a control tower 54 disposed in front of the driver's seat 51, The transverse side wall 55 located in the edge part on the opposite side to the hatch side of the drive part bottom 53, and the operation panel 56 arrange | positioned in the transverse side on the opposite side to the hatch side of the driver's seat 51 are provided. The lateral wall 55 partitions the space between the engine bonnet 21 and the control tower 54 in the driving unit from the outside of the harvesting unit side to allow dust to enter the driving unit from the harvesting unit 10. It is preventing. The control tower 54 is provided with the operation lever 60 which performs the steering operation of the apparatus main body, and the lifting operation of the harvesting | reaping part 10, and the instrument panel 61 which shows information, such as operation time with respect to the engine 28, etc. have. The control panel 56 is a switch panel disposed on the front of the main body of the machine rather than the traveling shift lever (an example of the operating tool) 62, the threshing clutch lever 63, the traveling shift lever 62, and the threshing clutch lever 63. (64) is provided. The traveling shift lever 62 is operated by rocking in the front-rear direction of the main body of the machine, thereby shifting the hydrostatic stepless speed changer (not shown), and driving, stopping, and shifting the traveling device 1. The threshing clutch lever 63 is operated by rocking in the front and rear direction of the apparatus main body, thereby switching the threshing clutch (not shown), and driving and stopping the threshing apparatus 3. The switch panel 64 switches a switch (not shown) for turning and undulating the transverse screw conveyor 7 and automatic operation of the transverse screw conveyor 7 to an ON state and an OFF state. The switch (not shown) to operate, and the operation means (not shown) which select and set the discharge position which the horizontal screw conveyor 7 stops by automatic operation are provided. As shown in Fig. 10, the switch panel 64 is in an inclined state in which only the driver's seat side is lowered when viewed from the front and rear direction of the apparatus main body so that it is easy to see from the operator seated on the driver's seat 51.

As shown in Fig. 9, in addition to the operation bottom frame 52 and the bonnet frame 43 being connected, the transverse wall frame 57 along the operation panel 56 and the transverse wall 55 and The connecting member 39 is connected, and the lateral wall frame 57 and the driving unit bottom frame 52 are connected to each other. The steering tower 54 is erected at the front end of the driver's floor 53. As a result, the driving unit bottom 53, the control tower 54, the lateral wall 55, and the operation panel 56 become one superstructure, and together with the engine bonnet 21 around the opening / closing axis X. It rotates open and close with respect to the apparatus main body frame 2.

As shown in FIG. 4, the driver's seat 51 is supported by the upper support plate 22 of the engine bonnet 21 via the seat support device 51a. As a result, as shown in Figs. 2 and 3, the driving seat 51 rotates together with the engine bonnet 21, and when the engine bonnet 21 is switched to the open state, the engine main body rear side than the engine 28 is shown. In position to open the engine 28.

That is, in performing the inspection or repair work of the transmission structure to the driving unit 20, the traveling device 1, and the harvesting unit 10, the main body of the apparatus from the closed state around the opening / closing axis X from the closed state It rotates laterally outside. At this time, the inlet hose 30a which connects the air cleaner 30 to the engine 28 can be extended by a bellows hose, and the separation of the air cleaner 30 and the engine 28 is unnecessary. In addition, at this time, the engine bonnet 21 rotates while supporting the loose end side of the engine bonnet 21 by the support frame 42, so that the rotation operation of the engine bonnet 21 becomes light. When the engine bonnet 21 is in an open state, the engine bonnet 21 and the driver's seat 51 are positioned behind the main body of the device rather than the engine 28, and the engine 28 is opened. At this time, the driver's bottom 53 and the control tower 54 are rotated with the side wall 55 and the operation panel 56 together with the engine bonnet 21, and are normally located below the driver's bottom 53. The part of the main body of the apparatus, as well as the harvesting portion, which is normally covered by the lateral wall 55, is also opened. At this time, as shown in FIG. 3, the grain tank 4 swings open to the machine main body transversely outward around the shaft center 6a of the longitudinal screw conveyor 6, and the engine bonnet 21 is rearward of the engine 28. As shown in FIG. Secure the space located in.

FIG. 11 is a plan view showing an assembly method for assembling the engine bonnet 21. Fig. 12 is a rear side view showing the assembly attachment method of the engine bonnet 21. Figs. As shown in these figures, the structure in which the engine bonnet 21 and the driving unit bottom 53 and the like are integrated, and the pair of support arms 70 of the loading device are connected through the connecting member 71, The engine bonnet 21 is supported by a pair of support arms 70 and 70 with the support height at which the rotational connection 39a of the engine bonnet 21 is positioned slightly higher than the support portion 35a of the support column 35. Let's do it. While keeping the engine bonnet 21 at this support height, the engine bonnet 21 is carried in from the transverse outer side of the main body of the apparatus to the upper side of the engine 28. When the rotation connection part 39a is located above the support pillar 35, the engine bonnet 21 is lowered and the rotation connection part 39a is connected to the support part 35a of the support column 35. As shown in FIG.

2 shows the closed state of the steering wheel 50A, and FIG. 3 shows the open state of the steering wheel 50A. As shown in these figures, the steering wheel 50A is rotatably supported by the support column 35 standing upright in the apparatus main body frame 2, and is further provided by the engine 28 from the apparatus main body rear side than the engine 28. Oscillation opening and closing in the open state and the closed state can be performed around the device main body up-and-down opening / closing axis X located inside the device main body rather than the outside of the device main body in the transverse direction of the device main body. The steering wheel 50A, which is in a closed state, covers the engine 28 and the engine cooling radiator 27 with the engine bonnet 21, and the driving unit bottom 53, the control tower 54, the transverse wall 55, and the operation panel. 56 is disposed at a predetermined position of the apparatus main body. The steering wheel 50A which is in the open state is located at the rear of the main body of the engine 28, and is opened so that the engine 28 and the engine cooling radiator 27 can be easily inspected or repaired. The main part of the apparatus covered by the floor 53 and the transverse wall 55 is opened for easy inspection and repair.

As shown in Figs. 1 and 2, the steering wheel 50A has a travel lever or travel shift lever (an example of an operation tool) 62 provided on the operation panel 56, and a front end side of the driving part bottom 53. As shown in Figs. Is provided with a brake pedal (another example of the control tool) 141. The traveling shift lever 62 is a hydrostatic stepless speed changer 143 equipped with a mission case 142 supported at a front end of the apparatus main body frame 2 (an example of an operation target device. 13, hereinafter abbreviated as continuously variable transmission device 143, is shifted, thereby driving, stopping, and shifting the traveling device 1. The brake pedal 141 is a friction brake 144 (another example of the operation target device) as the operation target device provided in the mission case 142. See Figure 20. Hereinafter, the brake 144 will be abbreviated], thereby braking operation of the traveling device 1.

Fig. 13 shows the structure of the mechanical linkage mechanism 150 viewed from the side of the main body of the mechanical linkage mechanism 150 for linking the traveling shift lever 62 to the operation portion 143a of the continuously variable transmission 143. Figs. Fig. 14 shows the structure of the mechanical linkage mechanism 150 as viewed from the front and rear of the apparatus main body. As shown in these figures, the mechanical linkage mechanism 150 for shifting includes an interlocking rod 151 to which the connecting shaft 151a of the lower end side is connected to the operation portion 143a of the continuously variable transmission device 143, and the linkage rod. The transmission-side linkage member (an example of the second linkage member) 152 to which the loose end is connected to the coupling shaft 151b on the upper end side of the 151 is integral with the rotation support shaft 62a of the traveling shift lever 62. Rotating arm 153 rotatably connected, linkage rod 154 to which coupling arm 154a on the upper end side is coupled to swing arm 153, and bent end 154b on the lower end side of the linkage rod 154 A lever side linking member (an example of the first linking member) 155 to which the loose end is connected, and a coupling means 156 provided over the lever side linking member 155 and the transmission side linking member 152. Doing.

The lever side interlocking member 155 is a support member 157 fixed to the lateral wall 55, and a connecting shaft 158 connecting the support member 157 and the base portion of the lever side interlocking member 155. It is supported by the transverse side wall 55 of the steering wheel 50A through this. Thereby, the lever side interlocking member 155 oscillates in the apparatus main body up-down direction about the axial center 158a of the apparatus main body transverse direction of the said connection shaft 158. As shown in FIG. The transmission-side linkage member 152 includes the mission case 142, a support member 159 having a lower end side fixed to the mission case 142, an upper end portion of the support member 159, and a transmission-side linkage. It is supported by the apparatus main body frame 2 of the apparatus main body via the connection shaft 160 which connects the base part of the member 152. As a result, the transmission-side interlocking member 152 swings in the vertical direction of the apparatus main body around the shaft center 160a of the connecting shaft 160.

As shown in Figs. 15, 16 and 19, the coupling means 156 is connected to the connecting pin 156a provided on the lever side linking member 155 and the transmission side linking member 152. It is comprised with the pinhole 156b which provided the engagement | engagement removal of the connection pin 156a. The connecting pin 156a is constituted by the bent end 154b of the linkage rod 154. The engaging means 156 is provided with the charge spring means 156c which consists of the said transmission side linkage member 152. As shown in FIG.

Fig. 19A shows the engagement state of the engagement means 156, Fig. 19B shows the detachment state of the engagement means 156, and Fig. 19C shows the engagement means. A charge state of 156 is shown. As shown in these figures, the coupling means 156 is switched to the engaged state and the disengaged state or is in a charged state by opening and closing the steering wheel 50A.

That is, when the steering wheel 50A is operated in the open state, the lever side interlocking member 155 moves together with the oscillating steering wheel 50A, and the lever side interlocking member 155 and the transmission side linking member 152 are mated. The connecting pin 156a is separated from the pin hole 156b by being spaced apart. As a result, the engaging means 156 is in a detached state in which the lever-side interlocking member 155 and the transmission-side interlocking member 152 are separated, and the operation portion 143a of the traveling shift lever 62 and the continuously variable transmission 143 is performed. Disconnect from).

When the steering wheel 50A is operated in the closed state, the lever side linking member 155 moves together with the oscillating wheel 50A, and the lever side linking member 155 and the transmission side linking member 152 approach each other. The connecting pin 156a is inserted into the pin hole 156b. As a result, the engaging means 156 is brought into an engaged state in which the lever-side interlocking member 155 and the transmission-side interlocking member 152 are interlocked, and the operating shift lever 62 of the continuously variable transmission device 143 is operated. ). Further, the coupling means 156 interlocks the lever side linking member 155 and the transmission side linking member 152 such that the shaft centers 158a and 160a for the respective swings become the same shaft center Y and integrally swing. At this time, as shown in Fig. 17, the concave guide 161a provided at the end of the connecting shaft 158 connected to the lever-side interlocking member 155 and the transmission-side interlocking member 152 are connected. The positioning means 161 which consists of the convex guide 161b provided in the edge part of the said connection shaft 160 in which the concave guide 161a and the convex guide 161b separated from each other as shown in FIG. From the state, as shown in Fig. 17 (a), the concave guide 161a and the convex guide 161b are switched to the combined working state to position both connecting shafts 158 and 160 to be arranged in a straight line shape, and the connecting The pin 156a and the pin hole 156b are easy to engage.

The transmission-side linkage member 152 shown by the dashed-dotted line in FIG. 19C shows the state connected to the connecting pin 156a. The transmission-side linkage member 152 shown in solid line in Fig. 19C shows a state of elastic deformation. As shown in this drawing, when the steering wheel 50A is operated in the closed state, when the connecting pin 156a and the pin hole 156b are displaced, the connecting pin 156a is connected to the transmission-side interlocking member ( The part which contact | connects the site | part away from the pin hole 156b of 152, and the transmission side interlocking member 152 is connected to the connection shaft 160 by the pressing action by the connection pin 156a is a swing support point. Then, the loose end side on which the pin hole 156b is located elastically deforms to a rocking state deviated from the lever side interlocking member 155. As a result, the coupling means 156 is brought into a charged state in which the coupling pin 156a and the pin hole 156b are coupled and pressed by the transmission-side interlocking member 152 as the charge spring means 156c, and the traveling shift lever 62 ) Is moved and the connecting pin 156a and the pin hole 156b coincide with each other, so that the connecting pin 156a is inserted into the pin hole 156b, and the lever-side interlocking member 155 and the transmission-side linkage are interlocked. The member 152 is interlocked.

20 is a perspective view of the mechanical linkage mechanism 170 for linking the brake pedal 141 to the operation portion 144a of the brake 144. As shown in this figure, the brake mechanical interlock mechanism 170 includes an operation cable 171 having one end side connected to the operation unit 144a of the brake 144 and two ends of the operation cable 171 at the other end thereof. A pedal that is integrally rotatable to the brake side interlocking member (an example of the second interlocking member) 172 to which the forked portion 172a is connected, and the mounting barrel 141b of the pedal arm 141a of the brake pedal 141. A side interlocking member (an example of the first interlocking member) 173 and a coupling means 174 provided over the pedal side interlocking member 173 and the brake side interlocking member 172 are provided.

The hook 198 shown in Fig. 20 is coupled to the pin 141c of the pedal arm 141a and holds the brake pedal 141 in the depression position to hold the brake 144 on.

The brake pedal 141 is connected to the arm 175 included in the mounting cylinder 141b or is urged and pushed to the lift limit position by the return spring 176. The pedal-side interlocking member 173 is supported by the frame portion of the steering wheel 50A via the pedal support shaft 177. As a result, the pedal-side interlocking member 173 swings upward and downward along the brake pedal 141 around the axial center 177a in the transverse direction of the main body of the pedal support shaft 177. The brake side interlocking member 172 connects the base shaft of the brake side interlocking member 172 to the bracket 178 which is connected to the bracket 178 fixed to the apparatus main body frame 2, and the bracket 178. It is supported by the apparatus main body frame 2 of the apparatus main body through this. As a result, the brake side interlocking member 172 swings in the vertical direction of the main body of the appliance around the shaft center 179a of the connecting shaft 179. The brake side interlocking member 172 is rocked and pressed by the return spring 181 to the rocking limit at which the base portion of the brake side interlocking member 172 contacts the stopper 180 continuously provided in the bracket 178. The operation cable 171 is equipped with the outer cable 171a and the inner cable 171b. One end side of the outer cable 171a is connected to the cable support of the brake side interlocking member 172, and one end side of the inner cable 171b is connected to the cable holder 83 via a spring 182. The cable holder 83 is supported by the support member 157 fixed to the apparatus body frame 2. The pedal-side interlocking member 173 includes a pair of interlocking rods 185 and 185 separately connected to the pair of long holes 173a and 173a, respectively. The pair of linkage rods 185 and 185 operate the travel shift lever 62 when the travel shift lever 62 is operated to the neutral position from the forward side or the reverse side and the continuously variable transmission 143 is in a neutral state. The pedal-side linking member 173 and the traveling shift lever 62 are linked to each other so that the brake pedal 141 is operated in the brake-on state by the force.

As shown in Figs. 21 and 22, the engaging means 174 includes a connecting pin 174a provided on the two-pronged portion 172a of the brake side interlocking member 172 and the pedal side interlocking member ( A coil spring mounted to the connecting pin 174a between the pin hole 174b provided to allow the engagement pin 174a to be disengaged from the pair 173 and the pair of supporting pieces of the two-pronged portion 172a. A charge spring 174c is formed.

(A) of FIG. 22 shows the coupling state of the coupling means 174, (b) of FIG. 22 shows the detachment state of the coupling means 174, and (c) of FIG. Shows the state of charge. As shown in these figures, the coupling means 174 is switched to the engaged state and the disengaged state or is charged by the opening and closing of the steering wheel 50A.

That is, when the steering wheel 50A is operated in the open state, the pedal-side interlocking member 173 moves together with the oscillating steering wheel 50A, and the pedal-side interlocking member 173 and the brake-side interlocking member 172 are relatively spaced apart. The connecting pin 174a is then pulled out of the pin hole 174b. As a result, the engaging means 174 is in a detached state in which the pedal side interlocking member 173 and the brake side interlocking member 172 are separated, thereby interlocking the brake pedal 141 with the operation unit 144a of the brake 144. Hang up.

When the steering wheel 50A is operated in the closed state, the pedal-side interlocking member 173 moves together with the oscillating steering wheel 50A, and the pedal-side interlocking member 173 and the brake-side interlocking member 172 relatively connect and connect. Pin 174a is inserted into pin hole 174b. As a result, the coupling means 174 is brought into an engaged state in which the pedal side interlocking member 173 and the brake side interlocking member 172 are interlocked, and the brake pedal 141 is interlocked with the operation unit 144a of the brake 144. . At this time, the pedal support shaft 177 and the connecting shaft 179 is arranged in a straight shape. Thereby, the engagement means 174 sets the shaft center 177a for the oscillation of the pedal side interlocking member 173, and the shaft center 179a for the oscillation of the brake side interlocking member 172 as the same shaft center Z, The pedal side interlocking member 173 and the brake side interlocking member 172 are rocked around the shaft center Z.

When the steering wheel 50A is operated in the closed state, if the connecting pin 174a and the pin hole 174b are displaced, the portion away from the pin hole 174b of the pedal-side linking member 173 is the connecting pin 74. ), The connecting pin 174a is slidably moved to the retreating side by the pressing action of the pedal-side interlocking member 173, and the spring support pin 86 fixed to the connecting pin 174a is fixed to the charge spring ( 174c) is elastically deformed toward the compression side. As a result, the coupling means 174 is brought into a charged state in which the coupling pin 174a and the pin hole 174b are coupled and pressed by the charge spring 174c, and the brake pedal 141 is moved to operate the coupling pin 174a. As the pin hole 174b coincides with each other, the connecting pin 174a is inserted into the pin hole 174b to interlock the pedal side interlocking member 173 and the brake side interlocking member 172.

As described above, in switching the steering wheel 50A to the open state, the lever side interlocking member 155 shifts the transmission device side interlocking member 152 around the shaft center Y for swinging toward the open state of the steering wheel 50A. ), The connecting pin 156a is pulled out of the transmission-side linkage member 152, and the coupling means 156 is switched to the detached state. As a result, the traveling shift lever 62 and the operation portion 143a of the continuously variable transmission 143 are naturally switched to the separated state. Further, the pedal side interlocking member 173 is spaced apart from the brake side interlocking member 172 around the shaft center Z for the swing toward the open state of the steering wheel 50A, and the connecting pin 174a is the pedal side interlocking member. The engagement means 174 is diverted away from 173 to the detached state. As a result, the brake pedal 141 and the operation unit 144a of the brake 144 are naturally switched to the separated state. As a result, the traveling shift lever 62 and the continuously variable transmission 44 are completed in the separated state and completed without any special effort for switching the brake pedal 141 and the brake 144 into the separated state, respectively.

On the other hand, when returning the steering wheel 50A to the closed state, the lever-side interlocking member 155 is moved relative to the transmission-side interlocking member 152 around the shaft center Y for swinging toward the closed state of the steering wheel 50A. Approaching, the driving shift lever 62 when the connecting pin 156a is inserted into the transmission-side interlocking member 152 so that the engaging means 156 is switched to the engaged state and the steering wheel 3A is switched to the closed state. Is returned to the state linked to the operation unit 143a of the continuously variable transmission 143. When the driving shift lever 62 and the continuously variable transmission 143 are not in the interlocked state even though the steering wheel 50A is switched to the closed state, the traveling shift lever 62 is in a state where the steering wheel 50A is in the closed state. ) Is moved around the shaft center of the rotation support shaft 62a. Then, since the coupling means 156 is in a charged state, the connecting pin 156a is connected to the pin hole 156b by the pressing force provided by the transmission-side interlocking member 152, so that the connecting pin 156a and the pin hole 156b coincide. ) Is inserted into the transmission-side interlocking member 152 so that the engaging means 156 is switched to the engaged state. As a result, the traveling transmission lever 62 and the continuously variable transmission 143 are in an interlocking state, and the operation of the continuously variable transmission 40 by the traveling transmission lever 62 becomes possible. That is, when the traveling shift lever 62 is rocked around the axis of the rotary support shaft 62a in the front and rear direction of the apparatus main body, the swinging arm 153 travels around the axis of the rotary support shaft 62a. And the interlocking rod 154 is push-pulled to rock the lever-side interlocking member 155 around the shaft center 158a. Then, the transmission-side interlocking member 152 swings integrally with the lever-side interlocking member 155 around the shaft core 160a which has become the same shaft center Y as the shaft core 158a, and the interlocking rod 151 is pushed down. The operation is performed to rock the operation unit 143a. As a result, the continuously variable transmission 143 operates in an electric state or a neutral state on the forward side and the reverse side.

Further, when returning the steering wheel 50A to the closed state, the pedal-side interlocking member 173 approaches the brake-side interlocking member 172 around the shaft center Z for the oscillation toward the closed state of the steering wheel 50A. Then, the connecting pin 174a is inserted into the pedal side interlocking member 173 so that the coupling means 174 is switched to the engaged state. As a result, when the steering wheel 50A is switched to the closed state, the brake pedal 141 returns to the state linked to the brake 144. In addition, when the brake pedal 141 and the brake 144 are not in the interlocking state even though the steering wheel 50A is switched to the closed state, the brake pedal 141 is rocked as it is in the closed state of the steering wheel 50A. . Then, since the coupling means 174 is in the charged state, the connecting pin 174a and the pin hole 174b are matched, so that the connecting pin 174a is pedaled by the pressing force provided by the charge spring 174c. Inserted into the side interlocking member 173, the engagement means 174 is switched to the engaged state. As a result, the brake pedal 141 and the brake 144 are in an interlocked state, and the brake 144 can be operated by the brake pedal 141. That is, when the brake pedal 141 is depressed, the pedal side linking member 173 swings around the shaft center 177a of the pedal support shaft 177 together with the brake pedal 141. Then, the brake side interlocking member 172 swings integrally with the pedal side interlocking member 173 around the shaft core 179a which is the same shaft center Z as the shaft core 177a, and the operation cable 171 is operated to operate the control unit. Rocking operation 144a is performed. As a result, the brake 144 is turned on.

As shown in Figs. 14 and 15, a positioning spring 190 having a coil portion externally fitted to the connecting shaft 160 is mounted across the transmission-side interlocking member 152 and the support member 159. Doing. As shown in Figs. 17 and 18, a spring support piece 191 introduced between the pair of spring ends 190a and 190b of this positioning spring 190 is provided on the support member 159. The spring operation piece 192 drawn in between the pair of spring ends 190a and 190b is attached to the transmission-side interlocking member 152. As a result, the positioning spring 190 positions the transmission-side interlocking member 152 in a state where the linkage with the lever-side interlocking member 155 is broken, to a neutral position where the continuously variable transmission 143 is in a neutral state. .

That is, when the transmission-side interlocking member 152 is rocked from the neutral position N to the forward side F, one spring end 190b of the positioning spring 190 is supported by the spring support piece 191, The other spring end 190a is pressed by the spring operation piece 192 which moves with the transmission-side interlocking member 152. When the transmission-side interlocking member 152 is rocked from the neutral position N to the reverse side R, the other spring end 190a of the positioning spring 190 is supported by the spring support piece 191 and One spring end 190b is press-operated by the spring operation piece 192 which moves with the transmission side linkage member 152. As shown in FIG. As a result, the positioning spring 190 is elastically deformed even when the transmission-side interlocking member 152 is swung to either the forward side or the reverse side, thereby acting the elastic restoring force provided on the spring operation piece 192. The transmission-side interlocking member 152 is positioned to the neutral position N. FIG.

As shown in Fig. 15, the support member 159 is provided with a potentiometer 193 serving as an engine starting check means provided in the support 59a. The potentiometer 193 has the swinging arm 194 connected to the rotation operation shaft 193a so as to be rotatable integrally, and the transmission-side interlocking member (1) in a state of being inserted into the long hole 194a of the swinging arm 194a. It is interlocked with the transmission-side interlocking member 152 via the interlocking pin 195 provided in 152. The potentiometer 193 detects the neutral position N of the transmission-side interlocking member 152 as the neutral state of the continuously variable transmission 143, and based on the detection result, the engine is started on an engine starting device (not shown). A command for starting permission is output, and the engine 28 can be started when the continuously variable transmission 143 is in a neutral state.

That is, when the steering wheel 50A is in an open state and the linkage between the travel shift lever 62 and the continuously variable transmission 143 is broken, even if the travel shift lever 62 is operated to an operation position other than the neutral position, for example, (28) It is possible to start.

That is, when the traveling shift lever 62 which is disconnected from the continuously variable transmission 143 is operated at the operating position on the forward side or the reverse side, it is held by the friction mechanism 196 (see Fig. 13) at the operating position. . Even in this case, the transmission-side interlocking member 152 is positioned to the neutral position N by the positioning spring 190. Then, the potentiometer 193 detects that the continuously variable transmission 143 is in a neutral state, and outputs an instruction for engine start permission.

[Second Embodiment]

Next, the combine which concerns on 2nd Embodiment is demonstrated, referring FIG. 23 or below. In the following description, the same code | symbol is attached | subjected about the member same as 1st Embodiment, and description is abbreviate | omitted.

As shown in FIG. 23 and FIG. 24, this combine mounts the threshing apparatus 3 equipped with the threshing feed chain 3a, the drive part 50, etc. to the traveling equipment main body which travels with the crawler traveling apparatus 1, As shown in FIG. At the same time, a harvesting unit including a standing device 14, a harvesting device 15, a supply device 16 for conveying harvested grain stems, and the like is disposed in front of the traveling device main body, and behind the threshing device 1 The straw discharge processing apparatus 210 is provided.

As shown in FIG. 23 and FIG. 24, the transmission case combined cylindrical main frame 209B extends and protrudes toward the front from the front end of the main body of the traveling device, and the harvesting section 5 is provided in the cylindrical main frame 209B. Doing. A hydraulic cylinder 211 is provided between the cylindrical main frame 209B and the front end of the traveling device main body, and the cylindrical main frame 209B is provided to elevate around the transverse center x relative to the traveling device main body. .

The supporting structure of the cylindrical main frame 209B will be described. As shown in Figs. 23 and 24, the cylindrical main frame 209B is integrally fixed to the transverse main frame 209A and extends forward from the transverse main frame 209A.

The transverse main frame 209A is provided and supported over a pair of left and right brackets 212A and 212B provided at the front end of the traveling device main body.

The support structure of the left bracket 212A is demonstrated. As shown in Figs. 23 to 27, the support box 213 is erected, and at the front end of the support box 213, an open space a for opening only toward the left transverse side is formed, and the open space a ) Is integrated into the turntable 212C which penetrates the upper ceiling plate 213A from the lower apparatus main body frame 2 and is later, and stands up and installs a cylindrical support shaft 212D that supports the left bracket 212A. have.

26, 27, and 41, the top plate 213A is supported with a pivot table 212C that can swing left and right around the longitudinal axis y, and a left bracket on the upper surface of the pivot table 212C. 212A is fixed to be installed.

The left bracket 212A includes a support bracket portion 212a that is integrally formed on the pivot table 212C and a cover bracket portion 212b that is bolted to the support bracket portion 212a. 212b), the transverse main frame 209A is fitted in and fixed.

As shown in Figs. 26 and 28, the right bracket 212B is supported at the front end position of the traveling apparatus main body and at the left and right intermediate positions opposite to the support box 213 provided upright at the left front end of the traveling apparatus main body. The frame 214 to make up is installed. The frame 214 is formed by bending a square pipe material, is installed upright by a predetermined height from the front end of the traveling device body, and protrudes and extends the inclined frame portion 214A from the upper end to the rear upward. The horizontal frame portion 214B extends and protrudes from the rear to the rear, and the frame portion is vertically lowered downward from the extended protruding end to be fixed to the traveling device main body.

The plate members 240 and 240 span two front and rear positions over the support box 213 located at the left end and the frame 214 located at the middle left and right, thereby enhancing the mechanical strength.

As shown in Figs. 26-30, the right bracket 212B is supported against this frame 214. Figs. However, the right bracket 212B is integrally formed with the case which accommodates the mowing speed changer 215 mentioned later, and this point is demonstrated.

Reduction gear for accommodating a hydrostatic stepless speed change gear (cutting HST) 215 as a mowing speed changer (cutting HST) 215, and a reduction gear mechanism 216 that receives power from the cutting HST 215 and decelerates. The mounting part 217 which supports the case part 216A and the output shaft of the reduction gear case part 216A, and installs them in the frame 214 is integrally formed.

The right bracket 212B mentioned above is formed in this integral formation. That is, as shown in FIGS. 26 to 30, the support bracket portion 212c of the right bracket 212B is integrally formed on the mounting table 217, and the cover bracket portion is capable of swinging up and down with respect to the support bracket portion 212c. 212d is provided and the lateral main frame 209A is comprised so that installation and holding are possible.

On the other hand, with respect to the cylindrical main frame 209B which protrudes toward the front from the horizontal main frame 209A, the lifting hydraulic cylinder 211 is comprised so that attachment and detachment are possible. That is, as shown in Fig. 36, the bracket 209b is provided on the lower surface of the cylindrical main frame 209B, and the piston 211A of the hydraulic cylinder 211 is provided with a knob 250 for the bracket 209b. ) Is fixed.

Moreover, when switching the harvesting | reaping part 10 from a working posture to a non-working attitude, the lock operation tool 218 which keeps the harvesting | reaping part 10 at a fixed height is provided in the turntable 212C. That is, as shown in FIG. 26 and FIG. 41, the operating axis 218A of the left-right orientation attitude | position is moved to the horizontal side in the turntable 212C which supports the left bracket 212A, and the axial center of the operation axis 218A. While pivotally supporting to rotate around, an operating handle 218B is provided at the left end projecting from the swing table 212C of the operating shaft 218A, and the right projecting from the swing table 212C of the operating shaft 218A. The lock piece 218C is provided in the edge part.

30 and 41, the supporting block 212E is formed on the right side surface of the swing table 212C in a state close to the lock piece 218C. By rotating the operation shaft 218A on the upper surface of the supporting block 212E to load the lock piece 218C, and placing the downward projection 209c of the transverse main frame 209A on the lock piece 218C. The lateral main frame 209A can be maintained in the ground floating state, and furthermore, the harvesting section 10 can be kept in the ground floating state.

As shown in Fig. 27, in order to hold the harvesting section 10 in the non-working posture, an inverted c-shaped lock sphere support section 212F is provided on the rear surface of the pivot table 212C, and the vertically oriented hole is provided. (1) is formed and the lock tool 251 is inserted and supported. On the other hand, the lock hole 213a corresponding to the non-working posture of the harvesting | removing part 10 is formed in the ceiling plate 213A of the support box 213, and the lock hole 251 is inserted and fixed in this lock hole 213a. Therefore, the structure which keeps the harvesting | reaping part 10 in a non-working posture is employ | adopted.

In addition, when the spring (not shown) which presses the lock ball 251 in the direction which couples to the lock hole 213a is installed, when the cutting part 10 is switched to a non-working position, the lock ball 251 will be automatically made. It is to be coupled to the lock hole (213a).

With the above structure, in the working posture positioned in front of the traveling device main body, the harvesting unit 10 is lifted up and operated by the lifting hydraulic cylinder 211, and the lock piece (218) is operated by the lock operation tool 218. 218C is mounted on the support block 212E, the harvesting section 10 is slightly lowered to receive the transverse main frame 209A with the lock piece 218C, and the harvesting section 10 is held at a constant height. . In this state, the linkage between the hydraulic cylinder 211 and the cylindrical main frame 209B is released.

After this preparation, the cover bracket portion 212d of the right bracket 212B is removed as shown in Fig. 32, and the retracting portion 10 is rotated by rotating the pivot table 212C around the longitudinal axis y. Can be rotated to the machine main body laterally and laterally, and can be switched to a non-working posture. In the state switched to the non-working posture, the non-working posture can be maintained by engaging the lock sphere 251 with the lock hole 213a.

The power transmission system from the engine 28 is demonstrated. As shown in Figs. 26 and 28 to 30, the flywheel 252 of the engine 28 is arranged while the engine 28 of the prime mover 20 is disposed in a state close to the right side of the frame 214. As shown in Figs. ) And the output pulley 219 provided on the output shaft are arranged in a state facing the frame 214. On the other hand, an input shaft protrudes from the surface facing the engine 28 of the harvesting HST case portion 215A, and an input pulley 220 is provided on the input shaft. A first transmission belt (an example of the first endless rotating body) 221 is spread over the output pulley 219 and the input pulley 220, and power is transmitted to the mowing HST 215 directly from the engine 28. .

As shown in FIG. 28, below the harvesting HST 215, the tension arm 222 is pivotally supported by the mounting base 217, and the tension wheel 222A is provided in the tension arm 222, and 1st Tension is applied to the transmission belt 221.

As shown in Figs. 26 and 28 to 30, the power introduced into the mowing HST 215 through the input pulley 220 is transmitted to the reduction gear mechanism 216 from the hydraulic motor of the mowing HST 215. As shown in Figs. . The reduction gear mechanism 216 is provided in the reduction gear case part 216A integrally formed in the harvesting HST case 215A as mentioned above.

The output from the reduction gear mechanism 216 is provided with a mowing output gear (an example of the output gear) 223 on the output shaft protruding toward the engine side from the mounting table 217, and the mowing part from the mowing output gear 223. It is transmitted to the power input unit 10A of 10. In the output shaft protruding from the mounting base 217, the tension pulley 224 is supported between the mowing output gear 223 and the mounting base 217, and the 1st transmission belt () is provided from the opposite side to the tension wheel 222A. 221).

Here, the harvesting HST 215 which receives the power transmission from the engine 28 is arranged from the output pulley 219 of the engine 28 by the structure which arrange | positions an input shaft below and an output shaft below. The distance to the input pulley 220 can be largely adopted, and the tension region in the tension wheel 222A and the tension pulley 224 can be large.

30 and 33, the harvesting section 10 is provided with a transverse transmission shaft 225 inside the transverse main frame 209A, and the transverse transmission shaft 225 in the transverse direction. A mowing input gear (an example of the input gear) 226 is provided at the shaft end portion projected from the right end of the main frame 209A to form a power input section 10A of the mowing section 10.

The power blown in through the mowing input gear 226 is transmitted to the standing apparatus 14, the mowing HST 215, and the like through the longitudinal transmission shaft 227 installed in the cylindrical main frame 209B. On the other hand, it is comprised so that a power transmission is possible to the bottom conveying apparatus of the supply apparatus 8 for conveying harvesting grain culms from the output part 209a provided in the intermediate part of lateral main frame 209A.

As described above, the mowing output gear 223 and the mowing input gear 226 are engaged with each other at positions that are moved back and forth with each other in the state in which the mowing portion 10 is held in the working posture as shown in FIGS. 29 and 30. The engine power can be transmitted to the harvesting unit 10.

In order to switch the harvesting | reaping part 10 to a non-working posture, as shown in FIG. 26, the said harvesting | reaping part 10 is raised to predetermined height, it maintains the height at the lock operation tool 218, and a hydraulic cylinder 211 and the cylindrical main frame 209B are released | released, and only the cover bracket part 212d of the right bracket 212B is opened, as shown in FIG. Rotation around the longitudinal axis y of 212A) automatically releases the engagement of the mowing output gear 223 and the mowing input gear 226 as shown in Figs. Can be switched to the non-working posture.

The transmission structure to the traveling system is as follows. As shown in Fig. 33, the traveling HST 229 is disposed at the input portion of the traveling mission case 228A in which the traveling transmission 228 is stored, and the input pulley 230 is disposed at the traveling HST 229. The output pulley 231 of the engine 28 is connected to a second transmission belt (an example of the second endless rotating body) 232 so as to transmit power from the engine 28 to the traveling transmission 228. .

As described above, the traveling transmission 228 and the mowing transmission device 215 introduce power from the engine 28 in separate electric routes. Therefore, it is necessary to employ synchronization between the traveling speed and the mowing speed. To this end, the following configuration is adopted. As shown in Fig. 34, both the traveling transmission 228 and the mowing transmission device 215 use HST. The shift of the HST is performed by changing the angle of the inclined plate, but here, the traveling HST shift motor 233 and the mowing shift motor 234 are used to change the inclined plate angle.

As shown in Fig. 34, the traveling speed sensor 235 for measuring the output speed of the traveling HST 229 is provided, and the traveling speed shift lever 62 for setting the traveling speed is provided. A potentiometer shift position detecting sensor 237 for detecting the shift position of 62 is provided.

By such a control configuration, the control device 238 sets the speed of the traveling HST 215 by the traveling HST transmission motor 233 by receiving the shift signal from the shift position detecting sensor 237.

The travel speed sensor 235 detects the output speed of the travel HST 229 controlled by the speed setting of the travel shift lever 62, and transmits the detection result to the control device 238, and the control device 238. The drive control of the mowing HST transmission motor 234 is performed by this. Thereby, the cutting speed in the harvesting HST 215 can be made into the speed synchronized with the traveling speed.

However, when the mowing operation is performed while the ultra low speed is performed as the traveling speed, if the mowing speed is synchronized with the running speed, the cutting speed becomes too low, and problems such as returning the mowing crops to the crawler traveling device 3 and knocking them down are caused. It may occur. Therefore, in this case, the mowing HST transmission motor 234 is controlled on the basis of the detection result of the shift position detecting sensor 237 of the traveling shift lever 62, so that the speed of the mowing HST 215 is not impaired. Set to range. The sensor which detects the speed of the harvesting HST 215 may be provided, and feedback control may be performed by the detected value of this sensor.

The installation structure of the oil tank 239 will be described. 26, 30, and 31, the right bracket 212B is positioned at the front end of the traveling device main body and at the left and right intermediate positions with respect to the support box 213 standing upright at the left front end of the traveling device main body. The frame 214 supporting the upright is standing up. The oil tank 239 is placed in the space surrounded by the support box 213 and the frame 214 and the front and rear plate members 240 and 240 spanning the support box 213 and the frame 214. Load it.

As the plate thickness of the oil tank 239, the oil tank 239 is formed by the support box 213 and the frame 214 and the plate members 240 and 240 before and after connecting the support box 213 and the frame 214. It is not necessary to bear the load of the harvesting part 10 etc. which are enclosed and the lateral main frame 209A is included, and it may be relatively thin, and the substantially box-shaped oil tank 239 which fits into the space shape is carried out. Install.

The upper surface shape of the oil tank 239 is described. As shown in Figs. 35 and 36, the cross-sectional shape of the oil tank 239 is a quadrangular shape drawn between the support box 213 and the frame 214 in plan view, but the deformed quadrangle in side view. Shape. That is, although the basic shape is rectangular, the inclined surface 239A is formed in the front half of the ceiling plate. Thereby, the part located below the cylindrical main frame 209B can be made into the forward inclination posture, and it becomes a shape in which a straw etc. are hard to deposit.

When a rubber plate hump 241 is provided between the inclined surface 239A of the oil tank 239 and the cylindrical main frame 209B, the flow toward the ground such as the straw can be further promoted. It is possible to enhance the function of preventing the deposition of the back.

Next, the support structure of the grain tank 4 in the apparatus main body frame 2 which comprises a traveling apparatus main body is demonstrated. As shown in Figs. 23, 24 and 37, the grain tank 4 has a longitudinal conveying screw conveyor 243 and a discharge port 244A for discharging the grain stored in the grain tank 4 to the outside. It is equipped with the horizontal feed screw conveyor 244 provided.

As shown in FIG. 24 and FIG. 37, the grain tank 4 is supported by the instrument main body frame 2 at the longitudinal axis center z so that a transverse opening is possible. As a structure of the part which supports the grain tank 4 in the apparatus main body frame 2, the right side main frame 45A of a front-back orientation posture, and the horizontal frame 45B of a left-right orientation posture are arrange | positioned, and the right side A triangular plate frame 45C is provided in a portion formed behind the main frame 45A and the transverse frame 45B.

As shown in FIG. 24 and FIG. 37, the plate frame 45C overlaps and welds the two sides 45a and 45a which are orthogonal on the right main frame 45A and the transverse frame 45B. The inclined side 45b of the plate frame 45C is bent downward as shown in FIG. 38, and is provided with the bent edge 45d. The downward width W of the bent edge portion 45d is set to be in a state where the connection portion with the transverse frame 45B is the largest, and the connection portion with the right main frame 45A is gradually changed to become the smallest. have.

With the above structure, the number of parts is reduced compared to the case where the main frame or the like is arranged vertically and horizontally to form the supporting portion of the grain tank 4 of the apparatus main body frame 2 by introducing the plate frame 45C. can do.

In addition, the downward width W of the bending edge part 45d of the plate frame 45C has the largest connection part with the horizontal frame 45B, and the smallest connection part with the right main frame 45A. Since it is set to the state which changes gradually, the part of largest downward width W can be arrange | positioned in the site | part which load becomes largest, and it can be set as the downward width W according to the magnitude of a load.

The hole 45e for the longitudinal axis z in which the channel-shaped bracket 45G extends and protrudes outward from the right main frame 45A, and the grain tank 4 swings open to the channel-shaped bracket 45G is provided. Formed.

The fuel tank 46 is arrange | positioned at the left-right center part of the apparatus main body frame 2 in the horizontal direction of the plate frame 45C. 37 and 39, a connection portion between the left main frame 45D at the left end of the apparatus main body frame 2, the inclined side 45b of the plate frame 45C, and the transverse frame 45B. The fuel tank 46 is disposed between the intermediate frame 45E that protrudes rearward from the vicinity of.

The shape of the fuel tank 46 is as follows. As shown in FIG. 39, a sheave case 47 having a sorting device for swinging and sorting threshing processing material is disposed on the front upper side of the fuel tank 46, while the sheave case 47 and the fuel tank 46 are disposed. The second horizontal transfer conveyance apparatus 48 is arrange | positioned between and. In order to avoid interference with the second transverse conveyance transfer device 48, the front end portion of the fuel tank 46 is formed on the inclined surface 46A with its upper face downward.

The lower surface of the front end part of the fuel tank 46 is mounted on the said transverse frame 45B, and the loading state is stabilized. On the other hand, the rear surface of the fuel tank 46 is fixed to the rear frame 45F which was provided over the rear ends of the left main frame 45D and the intermediate frame 45E through a bracket.

The upper surface 46B of the fuel tank 46 is a flat surface, but its height is suppressed to a height that does not interfere when the sieve case 47 is taken out of the apparatus from the rear dust outlet at the time of maintenance.

The rear surface of the fuel tank 46 is a rear downward inclined surface 46C from the upper end to the position of the middle height, and the straw discharged from the straw discharging sedan 49 disposed behind the sheave case 47. It is set to the inclined surface which does not impede flow.

Although the lower half of the fuel tank 46 is located below the above-described lateral frame 45B, the increase is possible, but the lower half of the fuel tank 46 is a flat surface, but from the middle position to the rear rising slope 46D. It is. Thus, by setting it as the back raise slope 46D, even if a combine reverses, it can be avoided that the lower surface of the fuel tank 46 will get on the rice paddy etc. beforehand.

In addition, about the structure mentioned above, it can also employ | adopt for the combine of 1st Embodiment.

[Other Embodiments]

Instead of the engaging means 156, 174 of the above embodiment, the connecting pin is provided on the transmission side linking member 152 or the pedal side linking member 173, and the pin hole is provided on the lever side linking member 155 or the brake side. The coupling means provided with the structure provided in the interlocking member 172 may be employed. In this case as well, the object of the present invention can be achieved.

Instead of the driver of the above embodiment, the present invention can be applied even when a driver equipped with a driving cabin is employed. Therefore, the steering wheel 50A and the driving cabin of the above-mentioned embodiment are collectively referred to as steering wheel 50A.

[Other Embodiments]

(1) In 2nd Embodiment, although the belt was employ | adopted as the 1st, 2nd endless rotating bodies 221, 232, you may employ | adopt a chain etc.

(2) In the second embodiment, the hydrostatic stepless speed change device (HST) is employed as the mowing speed change device 215, but a belt type stepless speed change device or a gear type stepped speed change device may be used.

(3) In 2nd Embodiment, although it determined as the power input part 10A of the harvesting | reaping part 10 to the edge part of the engine 28 presence side of the horizontal main frame 209A, the supply apparatus for conveying harvesting grain culms. You may determine with (8) the connection part of the cylindrical main frame 209B, etc. Moreover, although the mowing input gear 226 was employ | adopted as a form which inputs power, you may use other rotating bodies, such as a pulley and a sprocket.

(4) In 2nd Embodiment, although the right side bracket 212B was described integrally with the mowing HST case part 215A, the reduction gear case part 216A, and the mounting base 217, it described here. The point in which the right bracket 212B integrally forms the reduction gear case part 216A and the mounting stand 217 is demonstrated.

Conventionally, as shown in Figs. 42A and 42B, the support bracket portion 212a and the mounting table 217 of the right bracket 212B are integrally formed, and the reduction gear case portion 216A is formed. ) Were formed separately. As shown in Figs. 43A and 43B, the reduction gear case portion 216A is divided into two cases, and receives the power transmission from the cutting HST 215. And a cover case portion (not shown) that closes the main body portion 216b and the main body portion 216b. In order to support the mowing output gear 223 which transmits the output of the reduction gear mechanism 216 to the mowing part 10, the output case part 216a which installs and supports the mowing output gear 223 in the output shaft is provided, have. This output case part 216a is integrally formed in the main body case part 216b in the reduction gear case part 216A.

The above two members are integrally formed as follows. However, the remodeling is performed in accordance with the installation state instead of simply combining the two members. 44 (a) As shown in FIG. 44 (c), in the mounting table 217, in order to load on the surface of the inclined frame portion 214A of the frame 214, an arc-shaped mounting table portion 217A is mounted. Protrudes to extend. The base bracket part 212a and the main body case part 216b of the right side bracket 212B are the mowing output gear 223 supported by the output case part 216a, and the mowing input gear supported by the right bracket 212B ( Positioned so that the space | interval of the shaft center P of the output case part 216a and the shaft center Q of the support bracket part 212a becomes a predetermined space so that 226 may mutually engage in the working posture of the harvesting | reaping part 10. FIG. Is integrated in.

The rear end portion 217B of the mounting table 217 protrudes further to the rear side than the input case portion 216c for inputting power from the harvesting HST 215 of the main body case portion 216b to stably install and fix it. Extends to position.

With the above configuration, while maintaining the ease of setting the distance between the shaft center Q of the lateral main frame 209A of the right bracket 212B and the shaft center P of the output shaft of the reduction gear case 216A, etc. Free placement of the mowing HST case portion 215A can be ensured.

(5) In another embodiment of the above (4), the right bracket 212B is integrally formed with the mowing HST case portion 215A, the reduction gear case portion 216A, and the mounting table 217, but the illustration is not shown here. Although not done, you may employ | adopt the structure which integrally forms the mounting stand 217 and the harvesting HST case part 215A in the right bracket 212B. Thereby, it can respond to the structure when the reduction gear mechanism 216 is not used.

(6) In 2nd Embodiment, although it was set as the structure which switches the harvesting | reaping part 10 to a non-working posture, you may apply to the combine which fixes the harvesting | reaping part 10 to a work posture.

(7) The present invention can be applied not only to combines but also to harvesting machines in which crops other than cereals, such as carrots and onions, are to be harvested.

In addition, although the code | symbol is written in each claim of a claim for easy contrast with drawing, this invention is not limited to the structure of embodiment by such writing.

1 is an overall side view of a combine according to a first embodiment.

2 is an overall plan view of the combine.

3 is a plan view of the combine in the engine bonnet open state;

4 is a side view of the driving unit;

5 is a plan view of the engine bonnet with the top plate removed;

6 is a plan view showing opening and closing of the engine bonnet;

7 is a rear view of the driving unit.

8 is a rear view of the heat sink of the driving unit in a removed state.

9 is a plan view of the engine bonnet support structure.

10 is a front view of a switch operating panel.

Fig. 11 is a plan view showing an assembling procedure for the engine bonnet.

Fig. 12 is a rear view showing the assembly attachment point of the engine bonnet.

Fig. 13 is a side view of the mechanical linkage mechanism for shifting.

14 is a front view of a mechanical linkage mechanism for shifting.

Fig. 15 is a side view in the engaged state of the lever side linkage member and the transmission side linkage member.

Figure 16 is a front view of the coupling means.

Fig. 17A is a sectional view in the operating state of the positioning means, and Fig. 17B is a sectional view in the released state of the positioning means.

18 is a side view of an arrangement of the positioning springs;

Fig. 19 (a) is a sectional view in the engaged state of the shifting engagement means, Fig. 19 (b) is a sectional view in the disengaged state of the shifting engagement means, and Fig. 19 (c) is a charge state of the shifting engagement means. Section in.

20 is a perspective view of a mechanical linkage mechanism for brakes.

Figure 21 is a front view of the engaging means.

Fig. 22A is a sectional view in the engaged state of the brake engagement means, Fig. 22B is a sectional view in the disengaged state of the brake engagement means, and Fig. 22C is a charge state of the brake engagement means. Section in.

Fig. 23 is a side view of the combine according to the second embodiment.

Fig. 24 is a plan view of the combine with the harvester in the working position;

Fig. 25 is a plan view of the combine with the harvester in the non-working position;

Fig. 26 is a front view showing a support structure of a harvesting unit provided in the front end of the traveling device main body.

Fig. 27 is a side view showing a support box for supporting the left end of the harvesting portion provided in the front end of the traveling device main body;

Fig. 28 is a left side view showing a frame, a harvesting HST case, and the like that support the right end of a harvesting section provided in the front end of a traveling device main body;

Fig. 29 is a right side view showing a frame for supporting the right end of the harvesting section provided in the front end of the traveling device main body, a harvesting HST case, and the like.

30 is a plan view showing a support structure of a harvesting unit provided in the front end of the traveling device main body;

FIG. 31 is a plan view showing a state of a transverse main frame in the middle of switching from a working posture to a non-working posture of the harvesting section in FIG. 30; FIG.

Fig. 32 is a right side view showing a state in which the cutting input gear and the cutting output gear are separated from each other during the switching from the working posture to the non-working posture of the harvesting section;

33 is a power system diagram from an engine to a traveling transmission and from the engine to a mowing transmission.

34 is a control block diagram for a mowing transmission device and a traveling transmission;

Fig. 35 is a side view showing the positional relationship between an oil tank and a cylindrical main frame.

36 is a plan view showing an oil tank fitted to a support box and a frame;

37 is a plan view showing a grain tank support structure.

Fig. 38 is a left side view showing the bent edge of the plate frame of the grain tank;

39 is a left side view showing the shape of the fuel tank;

40 is a side view showing a connection structure between a lifting hydraulic cylinder and a cylindrical main frame;

Fig. 41 is a right side view showing the left bracket, the pivot table, the lock operation tool;

Fig. 42 (a) is a plan view showing a state in which the right bracket and the mounting table are integrated, and Fig. 42 (b) is a side view of Fig. 42 (a).

Fig. 43A is a plan view showing the reduction gear case part, and Fig. 43B is a side view of Fig. 43A.

Fig. 44 (a) is a plan view showing a state in which the right bracket, the mounting table, and the reduction gear case part are integrated; 44 (c) is a right side view showing the main case part in FIG. 44 (b).

<Explanation of symbols for the main parts of the drawings>

1: crawler traveling device

2: device body frame

3: threshing device

4: grain tank

5: discharge screw

6: longitudinal screw conveyor

7: transverse screw conveyor

10: harvesting part

11: main frame

12: minute

13: standing path

14: standing device

15: mowing device

20: driving part

21: Engine Bonnet

25, 26: heat sink

27: cooling radiator

28: engine

29: intake case

30: air cleaner

31: cooling fan

32: output pulley

34: radiator frame

35 support pillar

37: cover plate

38: fan switching device

39, 44, 71: connecting member

40, 157, 159: support member

41, 178: Bracket

42: support frame

43: Bonnet Frame

51: driving seat

52: driving floor frame

53: driving floor

54: operation tower

56: operation panel

60: operation lever

61: dashboard

62: drive shift lever

63: threshing clutch lever

64: switch board

70: support arm

141: brake pedal

142: Mission Case

143: continuously variable transmission

144 brake

150, 170: mechanical linkage mechanism

151, 154, 185: interlocking rod

153, 194: rocking arm

156: coupling means

158, 160, 179: connecting shaft

161: positioning means

171: operation cable

190: positioning spring

193: potentiometer

195: Interlock Pin

196: friction mechanism

215: mowing HST

216: reduction gear mechanism

217: mounting table

220, 230: input pulley

222: tension arm

223: mowing output gear

224: tension pulley

226: mowing input gear

227: electric shaft

228: Driving Mission Case

229: driving HST

233: Traveling HST Variable Speed Motor

237: speed position detection sensor

238: control unit

239: oil tank

240: plate member

251: Lockgu

Claims (16)

It is a combine with the grain tank 4 supported by the longitudinal center z of the outer side of the apparatus main body so that a horizontal opening is possible, A main frame 45A having a posture along the front and rear directions of the device main body, and a transverse frame 45B having a posture connected to the main frame 45A and along the left and right directions of the device main body; The grain tank 4 is configured to be supported from below by a 45A and a transverse frame 45B, Combine with plate frame (45C) connected obliquely over said main frame (45A) and lateral frame (45B). The combine of Claim 1 which fixes the said plate frame (45C) to the upper surface of the said main frame (45A) and the lateral frame (45B). The combine of Claim 1 in which the clearance gap is formed between the connection location of the said main frame (45A) and the said transverse frame (45B), and the said plate frame (45C). The rear end part of the connection location of the said plate frame (45C) to the said main frame (45A) is a combine located rearward in the apparatus main body front-back direction rather than the said longitudinal axis z. The said main frame 45A further protrudes rearward in the apparatus main body front-back direction from the connection location of the said main frame and the said transverse frame 45B, A bracket 45G for supporting the grain tank 4 so as to be horizontally openable from the longitudinal axis z is provided in the middle portion of the rear portion protruding from the main frame 45A. A combine where the rear end of the connecting portion of the plate frame 45C to the main frame 45A is located rearward in the machine body front-back direction than the bracket 45G. delete delete delete delete delete delete delete delete delete delete delete

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