JP5155795B2 - Combine - Google Patents

Description

  The present invention relates to an opening in which the operating unit is moved to the outside of the machine body in a closed state that covers an operated part such as an engine or a mission case and a state in which the operation part is disconnected, and the operated part is opened. The present invention relates to a combine configured to be freely switchable to a state.

The above-mentioned combine can move the operating part to the outside of the machine body and switch it to an open state in which the operated part is opened.
In the above-described combine, in order to switch the operation unit between the closed state and the open state, a support column having a vertical posture is provided at the rear end of the operation unit to support one end of the operation unit. A guide rail is supported on the front end side of the driving unit so as to be able to swing back and forth around the longitudinal axis, and the leg frame of the driving unit is supported by the guide rail.
With the configuration described above, when opening and closing the driving unit, the driving unit rotates around the support column, and the leg frame rotates around the support column along with the guide rail that rotates around its own vertical axis. However, it slides on the guide rail (Patent Document 1).

Japanese Patent Laying-Open No. 2007-28941 (paragraphs [0036] [0037], FIG. 5)

In the case of the above configuration, since the driving part is switched between the open state and the closed state while being supported by the support column and the leg frame, the support unit is supported at two points as compared with the case of supporting only by the support column. The load on itself was small.
However, the part corresponding to the operation tool installation part (for example, the vicinity of the main transmission lever 17 of Patent Document 1) of the driving part is located away from the support column and the leg frame, and is the part corresponding to the operation tool installation part. Support function is considered insufficient.
In the portion corresponding to the operation tool installation unit, the operating unit is temporarily switched to the open state with the linkage between the operation tool and the operated unit being released, and then the operating unit is returned to the original position, so A work form for returning the linkage with the operation unit will be adopted.
In that case, in the operating tool installation section that is not directly supported by the column or leg frame, the distance between the operating tool and the operated section in the state before switching to the open state and in the state returned to the closed state changes. It is also possible that
Then, since the linkage state between the operating tool and the operated part changes, the operation reference position of the operating tool changes, and the neutral position of the operated part may not match the display of the operating tool. There was a possibility that the property would deteriorate.

  The objective of this invention is providing the combine provided with the operation part which can suppress the deterioration of the operativity of an operation tool by considering the support form to an operation tool installation part.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 is that the operating unit is provided with an operating tool installation unit including an operating tool for operating the operated unit provided in the airframe, and the operating unit is closed to cover the operated unit. In a closed state, the operation tool installation unit is configured to be freely switchable to an open state in which the operated unit is moved outward and the operated unit is opened. Thea and configured to be mounted on a support frame extending from the machine body and is, in the support frame, there the operation tool installation portion in the vertical position adjustably points Ru Oh provided vertical position adjusting mechanism for supporting The operational effects are as follows.

[Action]
Since the operation tool installation unit is configured to be placed on the receiving frame extending from the airframe, it belongs to the operated unit and the operation unit provided in the airframe to be linked in the closed state of the operation unit. Both the operation tool supported by the receiving frame extended from the machine body can be set in the installation state with respect to the machine body (the interval between the operated portion and the operation tool is determined by the receiving frame).
Therefore, even when the linkage between the operating tool and the operated part is once released when the operating part is opened, the positional relationship can be changed little when the operating part is returned to the closed state. The linkage state with the operation unit rarely changes.

〔effect〕
Therefore, even if the linkage between the operating tool and the operated part is repeatedly released and linked in order to open the operating part, the reference state between the operating tool and the operated part is rarely changed, and the operability is deteriorated. I was able to avoid it.

In addition, since the vertical position adjusting mechanism is provided, when the operating tool and the operated portion are linked for the first time, the distance between the two can be finely adjusted. In addition, even when the distance between the two changes during long-term use, the distance between the two can be restored by the vertical position adjustment mechanism, and the linkage state between the operation tool and the operated part changes. Due to this, there is little deterioration in operability.

〔Constitution〕
The characteristic configuration of the invention according to claim 2 resides in that the receiving frame is provided with a positioning mechanism for defining the position of the operating tool installation portion in the left-right direction of the machine body, and the operational effects thereof are as follows. .

[Function and effect]
Since the operation tool installation portion can be positioned not only in the vertical position adjustment mechanism but also in the left-right direction by this positioning mechanism, the operation tool and the operated portion can be appropriately linked.

〔Constitution〕
The characteristic configuration of the invention according to claim 3 is that an anti-vibration mechanism is provided at a portion of the receiving frame that supports the operation tool installation portion, and the function and effect thereof are as follows.

[Function and effect]
The vibration of the operated part transmitted through the receiving frame can be suppressed by this vibration isolation mechanism, so that the vibration hardly propagates to the operation tool itself, and the vibration is transmitted to the operator and the operational feeling deteriorates. There is no such thing as doing.

〔Constitution〕
A characteristic configuration of the invention according to claim 4 resides in that a guide inclined portion that guides the operation tool installation portion to the placement surface is formed on the receiving frame, and the operation and effect thereof are as follows.

[Function and effect]
Even if the relative position of the receiving frame and the operation tool installation part changes due to secular change or the like, the operation tool installation part can be guided to the placement surface by the guide inclined part.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a combine according to an embodiment of the present invention. FIG. 2 is an overall plan view of the combine according to the embodiment of the present invention. As shown in these drawings, a combine according to an embodiment of the present invention includes an airframe having a crawler traveling device 1, a cutting unit 10 connected to a front portion of an airframe frame 2 of the airframe, and the airframe frame 2 described above. It includes a threshing device 3 and a grain tank 4 that are mounted side by side in the lateral direction of the machine body.

  This combine harvests rice, wheat and other grains. That is, the cutting unit 10 is configured such that the main frame (not shown) of the cutting unit 10 is swung up and down with respect to the body frame 2 by a hydraulic cylinder (not shown), so that the front end portion of the cutting unit 10 is Are moved up and down into a lowering working state in which the weeding tools 12 positioned side by side in the horizontal direction are positioned close to the ground and in a non-working state in which the weeding tools 12 are raised from the ground. When the cutting unit 10 is in the descending working state and the vehicle is traveling, the cutting unit 10 introduces the planted cereal to be cut by the respective weeding tools 12 into the raising path 13 positioned behind the weeding tool 12. Then, the planted culm introduced into each pulling path 13 is pulled up and processed by the pulling device 14 located on the lateral side of the path 13, and the clipper type trimming located at the end of the pulling path 13 is performed. The device 15 performs the cutting process, and the harvested cereals from the cutting device 15 are conveyed toward the rear of the machine body by a supply device (not shown) and supplied to the threshing device 3. The threshing device 3 feeds the tip side of the harvested cereal rice cake to the handling room (not shown) while holding the stock side of the harvested cereal rice cake by the threshing feed chain (not shown) and transporting it backward in the machine body. Thresh the tip side. The grain tank 4 collects and stores the threshed grains conveyed from the threshing device 3. The grain tank 4 includes a discharge screw (not shown) located at the bottom of the tank, a vertical screw conveyor 6 located at the rear of the grain tank 4, and a horizontal screw connected to the upper end of the vertical screw conveyor 6. The threshing grains in the tank are discharged by the screw conveyor 7. The horizontal screw conveyor 7 can swivel and undulate with respect to the vertical screw conveyor 6.

The airframe includes a crawler traveling device 1 and an airframe frame 2, a driving unit 20 installed in an engine bonnet 21 located near the front of the grain tank 4, and a driver seat 9 located above the engine bonnet 21. And an operation unit 8 having The driving unit 20 includes an engine 28, a transmission case 11, a hydrostatic continuously variable transmission 43, and the like. The engine 28, the transmission, the hydrostatic continuously variable transmission 43, and the like are referred to as operated parts.
The driving unit 8 includes an engine bonnet 21 on which the driver's seat 9 is placed, a cabin 5 that covers the upper side of the driver's seat 9, an operation panel 26 disposed on the left side of the engine bonnet 21, and a support that supports the operation panel 26. The side plate 26A and the operation chamber 26B surrounded by them are provided with an operation tool installation portion.

  The height adjustment mechanism D of the driver seat 9 will be described. As shown in FIG. 25 and FIG. 26, a pair of horizontally long front and rear mounting bases 108 whose both ends are bent up are installed on the upper surface of the engine bonnet 21. A channel-shaped bracket 9A is disposed inside a substantially rectangular raised piece 108A raised at both lateral ends of the mounting base 108, and the flange portion 9a of the channel-shaped bracket 9A is attached to the bottom surface of the driver seat 9. It extends downward from. Further, a substantially triangular relay plate link 110 is disposed outside the rising piece 108A.

The rising piece 108A and the relay plate link 110 are coupled by a lateral pin 109A, and the relay plate link 110 is pivotally coupled around the lateral pin 109A. The relay plate link 110 and the plate bracket 9A are connected by a lateral pin 109B, and the bracket 9A is rotatably connected around the lateral pin 109B.
With the configuration as described above, the rising piece 108A and the relay plate link 110 can be relatively swung around the lateral pin 109A, and the relay plate link 110 and the bracket 9A can be relatively swung around the lateral pin 109B. It is possible to move.

  The lock mechanism E is provided only for the mounting base 108 disposed in the front, and the configuration thereof will be described. As shown in FIGS. 25 and 26, the relay plate link 110 has two through holes through which both lateral pins 109A and 109B are inserted, and another through hole 110A at a triangular apex position. . The lock pin 112 is inserted into the through hole 110A. The rising piece 108A is formed with a through hole 108a for inserting and mounting the lock pin 112 together with a through hole through which the lateral pin 109A linked to the relay plate link 110 is inserted.

A rectangular receiving plate 111 is disposed on the outer side of the relay plate link 110, and is fitted to a lateral pin 109A located on the front side of both lateral pins 109A and 109B. A biasing spring 113 that biases the lock pin 112 toward the engagement side is provided between the receiving plate 111 and the rising piece 108A. The biasing spring 113 is externally fitted to the lock pin 112, and the biasing force that is fitted externally is provided. One end of the spring 113 is received by a washer attached to the distal end side of the lock pin 112 and a pin for receiving the washer, and the other end of the biasing spring 113 is received by the receiving plate 111.
As shown in FIG. 25, a rear end recessed portion 108b is provided on the rear end surface of the rising piece 108A, and an upper end recessed portion 108c is provided on the upper end surface.

With the above-described configuration, the height adjustment of the driver seat 9 is performed as follows. When the driver's seat 9 is in a low position, the operation is as follows. As shown in FIGS. 25 (a) and 26 (a), the bracket 9A extending downward from the driver's seat 9 is located on the rear side of the rising piece 108A. The relay plate link 110 is arranged in a state in which the connection point position (lateral pin 109B) with the bracket 9A is positioned below the connection point position (lateral pin 109A) with the rising piece 108A.
In the mounting bases 108 arranged at the front and rear, the positional relationship among the plate-shaped bracket 9A, the relay plate-shaped link 110, and the rising piece 108A is set as described above, and the driver's seat 9 is at a low position.

  A lock pin 112 is attached to the receiving plate 111. The front end portion of the lock pin 112 is inserted into a rear end recessed portion formed on the rear end surface of the rising piece 108A so as to come into contact with the rear end side. The movement of the link 110 is restricted, and the low state of the driver seat 9 is maintained.

  An operation of switching the driver seat 9 from the low state to the high state will be described. As shown in FIGS. 25 and 26, the lock pin 112 is pulled out from the rear end recessed portion 108b of the relay plate link 110 against the urging spring 113 to release the locked state. In this state, when the driver's seat 9 is lifted up, the relay plate link 110 rotates upward about a connection point (lateral pin 109A) with the rising piece 108A. Then, the plate-like bracket 9A connected by the relay plate-like link 110 and the lateral pin 109B rotates upward, and the lateral pin 109B is placed in the upper end recessed portion 108c of the rising piece 108A. In this state, the driver's seat 9 is set to a high state.

  The receiving plate 111 and the lock pin 112 swinging around the lateral pin 109A together with the relay plate link 110 reach the position of the through hole 108a formed in the front end portion of the rising piece 108A, and the lock pin 112 is in that position. Is inserted into the through hole 108a by the urging force of the urging spring 113, so that the high state of the driver seat 9 is locked.

  The relationship between the cabin 5 and the support base 90 of the horizontal screw conveyor 7 will be described. As shown in FIGS. 2 and 27, a support base 90 of the horizontal screw conveyor 7 is erected on the left lateral side of the cabin 5. Since the transfer cylinder 7 </ b> A that stores the horizontal screw conveyor 7 is switched between the grain carrying-out posture and the posture placed on the support base 90, it moves up and down on the side of the cabin 5. Therefore, the support 90 is extended to the vicinity of the upper end of the cabin 5 to avoid interference between the cabin 5 and the transport cylinder 7A.

However, if the support base 90 is extended to the vicinity of the upper end of the cabin 5, the structure becomes larger, which may increase the manufacturing cost.
Therefore, as shown in FIG. 27, a rod-shaped protector 5 </ b> A in which a round bar member is bent in a cono-shape is attached to the lateral side surface of the cabin 5, and the support base 90 can be provided at a position lower than the upper end of the cabin 5.
With this rod-shaped protector 5A, the cabin 5 itself does not interfere with the transport cylinder 7A.

In addition, since the rod-shaped protector 5A is formed in the shape which bent the round bar member, it has the shape which can latch the hook for suspension. Then, when the cabin 5 is suspended, the rod protector 5A can be used as a suspension tool.
And although not shown in figure, the hanging tool which similarly bent the round bar member was provided in the front-end part of the left side surface of the cabin 5, and the rear-end part of the right side surface. A handrail is provided at the front end of the right side surface of the cabin and is also used as a hanging tool.

  FIG. 2 shows the structure of the driving unit 8 in plan view. FIG. 4 shows the structure of the driving unit 8 in a side view. As shown in these drawings, the driver 8 includes a driver's seat 9 and an engine bonnet 21 that supports the driver's seat 9, a driver's floor frame 18 and a control tower 19 disposed in front of the driver's seat 9, and a driver's part. A lateral side wall 23 located at the end of the floor frame 18 opposite to the entrance / exit side is provided, and an operation panel 26 disposed on the lateral side opposite to the entrance / exit side of the driver seat 9. The side wall 23 partitions the driving cockpit between the engine bonnet 21 and the control tower 19 in the driving section from the outside on the cutting part side, and prevents dust from entering the driving cockpit from the cutting part 10. The control tower 19 includes an elevating operation lever 17 that performs a steering operation of the airframe and an elevating operation of the cutting unit 10, and an instrument panel 62 that indicates information such as an operating time related to the engine 28. The operation panel 26 includes a transmission lever 40, a mowing / threshing clutch lever 63, and a switch panel 64 disposed on the front side of the machine body relative to the transmission lever 40 and the mowing / threshing clutch lever 63. The shift lever 40 is operated to swing in the longitudinal direction of the machine body, thereby shifting the hydrostatic continuously variable transmission 43 to drive, stop, and shift the traveling device 1. Details will be described later. The mowing / threshing clutch lever 63 is operated to swing in the longitudinal direction of the machine body, thereby switching the mowing / threshing clutch (not shown) and driving / stopping the threshing device 3. The switch panel 64 has a switch (not shown) for turning and raising / lowering the horizontal screw conveyor 7, a switch (not shown) for switching the automatic operation of the horizontal screw conveyor 7 between an on state and a cut state, The horizontal screw conveyor 7 includes operation means (not shown) for selecting and setting a discharge position where the horizontal screw conveyor 7 is stopped by automatic operation. As shown in FIG. 10, the switch panel 64 is in an inclined state that becomes lower toward the driver's seat side in the front-rear direction of the body so that it can be easily seen by the operator seated on the driver's seat 9.

The operation structure of the mowing / threshing clutch lever 63 will be described. The reaping / threshing clutch lever 63 is formed of a leaf spring-like member, and as shown in FIGS. 28 and 29, the threshing position where the threshing device is operated from the cutting position, and the reaping position where the threshing reaping device is operated. Are set along the operation route.
A limit dock 63A is attached to the proximal end of the mowing / threshing clutch lever 63, and a threshing limit switch 114A for outputting an on / off control signal for the threshing clutch, and a mowing limit switch 114B are provided at two positions on the outer periphery of the limit dock 63A. Is arranged.
With the above configuration, the following control is performed. In the position shown in FIG. 29, only the threshing limit switch 114A is in the on state. When the mowing / threshing clutch lever 63 is moved from the illustrated position to the mowing position, the threshing limit switch 114A and the mowing limit switch 114B are brought together to perform the mowing / threshing operation.

As shown in FIG. 28, a protrusion 107 is arranged between the cutting position and the threshing position in the operation path b, and the cutting / threshing clutch lever 63 is cut so as to bypass the protrusion 107. In the state where the leaf spring-like member is bent and once displaced in the lateral direction, it can be operated obliquely linearly toward the threshing position and the cutting position.
Therefore, the movement of the mowing / threshing clutch lever 63 exhibits a shape bent in a crank shape. Thereby, even if a part of the driver's body unexpectedly contacts the mowing / threshing clutch lever 63 at the cutting position, it is possible to prevent the threshing device or the like from malfunctioning.
However, when the mowing and threshing operation is not performed, the protrusion 107 may be removed so that the mowing / threshing clutch lever 63 can be operated linearly.

  As shown in FIGS. 4 and 5, the prime mover 20 includes an engine cooling radiator 27 disposed inside the fuselage lateral outer end of the engine bonnet 21, and the fuselage more than the engine cooling radiator 27 inside the engine bonnet 21. And an intake case 29 integrally connected to the upper part of the rear end side of the engine bonnet 21 and an air cleaner 30 provided inside the intake case 29. Yes.

  As shown in FIGS. 3 to 5, 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, and the cooling fan 31 is an airframe. Positioned laterally outside, the output pulley 32 is supported by the body frame 2 in a mounting posture positioned laterally inside the body.

  As shown in FIGS. 5 and 6, the engine bonnet 21 includes the top plate 22 that covers the upper side of the engine 28 and the engine cooling radiator 27, and the lateral side wall 23 that covers the lateral lateral outer side of the engine 28 and the engine cooling radiator 27. And a front side wall plate 24 that covers the front of the engine 28, both of which are configured to be detachable by screws a.

  As shown in FIGS. 5 and 6, the engine bonnet 21 includes a triangular chamfered plate portion 21 a provided at a corner portion located on the outer side of the vehicle body on the front end side of the engine bonnet. The chamfered plate portion 21a is formed with an inclined outward surface of the corner of the engine bonnet 21 that is desired for the entrance / exit of the engine bonnet 21 so that the upper end of the chamfer plate 21a is located on the inner side of the machine body. doing.

  As shown in FIGS. 16 and 20, an airframe-side support column 35 is disposed on the left and right center side of the airframe on the left and right center side of the airframe. A support bracket 34 is disposed so as to protrude upward at an upper end portion of the body 35 in a state of being parallel to the body-side support column 35, and a flat plate bracket 34 b attached to the lower end portion of the support bracket 34 is connected to the upper end side surface of the body-side support column 35. It is attached and fixed to and extends upward. As a result, the engine bonnet 21 is supported so as to be rotatable around the operating unit opening axis X of the machine body side column 35 facing the machine body up and down. The operating part opening shaft core X is disposed on the rear side of the body from the engine 28 and on the inward side of the body in the lateral direction of the body formed by the crankshaft end of the engine 28.

  That is, as shown in FIGS. 2, 3, 16 and 20, the engine bonnet 21 faces the lateral side of the body around the driving part opening axis X of the body side column 35 standing on the left rear side of the driver seat 9. The rotation can be switched freely. 2 shows a plan view state when the engine bonnet 21 is closed, and FIG. 3 shows a plan view state when the engine bonnet 21 is opened. As shown in these drawings, the engine bonnet 21 is rotated around the driving unit opening axis X, and is positioned on the front side of the fuselage with respect to the driving unit opening axis X to cover the engine 28. The state is switched between a closed state and an open state in which the engine 28 is opened on the rear side of the body relative to the engine 28.

As shown in FIGS. 16 and 20, a plate-like bracket portion 34A is extended to the upper end of the support bracket 34 above the fuselage-side column 35, and an upper bearing member 34a is attached and fixed to the plate-like bracket portion 34A. The upper bearing member 34a is attached in a vertically oriented posture, and has an outer diameter that is substantially constant up to the lower end.
On the other hand, a lower bearing member 35a is erected at the upper end of the fuselage-side column 35, and the lower bearing member 35a is mounted in a vertically oriented posture, and is formed in a tapered shape with an outer diameter that becomes thinner toward the upper end portion.
A rotary cylinder shaft 77 is rotatably fitted between the upper and lower bearing members 34 a, 35 a, and the rotary cylinder shaft 77 is notched in the vertical direction formed in the intake case 29 at the rear of the engine bonnet 21. It is fixed to the part 29a.

  Next, a connection structure from the air cleaner 30 to the intake manifold 71 of the engine 28 will be described. As shown in FIGS. 16 to 19, this connection structure includes an expandable / contractible metal (resin) expandable pipe portion 73 connected to the intake manifold 71, a lower vent portion 74 connected to the expandable pipe portion 73, and The upper vent part 75 made of rubber is connected to the air cleaner 30, and the vertical rotating pipe part 76 is connected to the upper and lower vent parts 74, 75.

As shown in FIGS. 18 and 19, the telescopic pipe portion 73 includes a lateral vent portion 73A having a tapered connecting portion, an outer pipe portion 73B that is fitted and fixed to a cylindrical portion 73a of the lateral vent portion 73A, and an outer pipe. The inner pipe portion 73C is fitted in the portion 73B so as to be relatively movable in the pipe axial direction.
The O-ring 82 and the seal ring material 83 are fitted on the outer surface of the inner pipe portion 73C facing the outer pipe portion 73B, and the seal ring material is fitted on the inner surface of the outer pipe portion 73B, thereby improving the sealing function. I am trying.

  The vertical rotating pipe portion 76 will be described. As shown in FIG. 17, the vertical rotating pipe portion 76 has an inner periphery of the lower end bulging portion 75A of the upper vent portion 75, the upper end portion 74A of the lower vent portion 74, the lower end bulging portion 75A, and the upper end portion 74A. It is comprised with the connection cylinder part 78 internally fitted in the state which contacts a surface. A cylindrical sealing material 79 and an O-ring 80 are fitted between the inner peripheral surface of the lower end bulging portion 75 </ b> A and the outer peripheral surface of the connecting cylindrical portion 78.

A ring-type pipe fastening tool 81 is attached to the overlapping portion between the upper end portion of the connecting tube portion 78 and the lower end portion of the upper vent portion 75, and the lower end portion of the connecting tube portion 78 and the upper end portion of the lower vent portion 74 are overlapped. A ring-type pipe fastening tool 81 is attached to the part.
With the configuration as described above, the upper and lower vent portions 75 and 74 are relatively rotatable around the longitudinal axis Y.

In the connecting structure portion from the air cleaner 30 having such a configuration to the intake manifold 71 of the engine 28, the following operation is performed in conjunction with the lateral opening rotation of the engine bonnet 21.
That is, when the engine bonnet 21 rotates from the predetermined position in the fuselage to the lateral outer side of the aircraft and when returning from the lateral lateral side to the predetermined position in the aircraft, as shown in FIGS. In the vertical rotation pipe portion 76, the upper and lower vent portions 75 and 74 rotate relative to each other around the vertical axis Y. And as shown in FIG. 19, the expansion-contraction pipe part 73 is further expanded-contracted simultaneously. The stretchable pipe portion 73 constitutes an extension limit when the seal ring material 83 comes into contact therewith.
As described above, the telescopic pipe portion 73 is provided for the telescopic operation so that the operating portion opening axis X which is the rotational axis of the engine bonnet 21 and the longitudinal axis Y of the longitudinally rotating pipe portion 76 are misaligned. Because.

  A frame that constitutes a foot portion of the driver seated on the driver seat 9 is arranged. That is, as shown in FIGS. 5 to 8, the support frame 87 is provided in the left-right orientation from the left front-rear frame 69 toward the right side. The support frame 87 has a short straight portion 87A extending along the left-right direction by a certain length from the front-rear frame 69, and a long slant portion 87B facing right rearward from the extending end of the short straight portion 87A. Thus, it is arranged and configured at a predetermined position.

  As shown in FIGS. 5 to 8, a plate-like operation unit floor 88 is stretched on the upper surface of the support frame 87. The plate-like operation unit floor 88 is divided into a front floor plate 88A positioned in front of the support frame 87 and a rear floor plate 88B as a footrest frame positioned rearward of the support frame 87, and the front floor plate 88A is supported. It is supported and fixed to the frame 87 and the like.

The intermediate portion 88a of the front floor plate 88A has a trapezoidal shape, and this intermediate portion 88a can be removed, so that the lower inspection of the operation unit 8 can be easily performed. On the other hand, the rear floor plate 88B is attached to the support frame 87 through two left and right hinges 89 so as to be swingable and openable, and can be opened and held in a standing posture.
As shown in FIGS. 5 (a) and 5 (b), a plate-like bracket 88b is erected at the rear end and the left side end of the rear floor plate 88B. The lower end portion of the front side wall plate 24 is configured to be attached.

  As shown in FIGS. 6 to 8, a machine body side receiving frame 92 that receives and supports the supporting frame 87 in a state along the supporting frame 87 is provided below the supporting frame 87. The body-side receiving frame 92 is provided with a mounting bracket 92A, and the bracket 91 formed on the operation unit floor 88 and the mounting bracket 92A can be connected by bolts. As a result, as will be described later, the driving cockpit including the engine bonnet 21 and the like swinging open to the side of the fuselage can be fixed at a predetermined driving work position.

  The bracket 91 formed on the operation unit floor 88 can be visually recognized by lifting the rear floor plate 88B. Accordingly, the bolt connection can be released only when the rear floor plate 88B is lifted and the operation cockpit including the engine bonnet 21 and the like is swung open to the side of the fuselage.

As shown in FIGS. 5 (a) and 5 (b), the lateral side wall 23 is detachably attached to a plate-like bracket 88b raised from the left lateral side end of the rear floor plate 88B via a bolt a. As shown in FIGS. 5A and 5B, the front side wall plate 24 and the chamfered plate portion 21a are detachably attached to a plate-like bracket 88b raised at the rear end of the rear floor plate 88B through bolts a. Thereby, the side wall 23, the front side wall plate 24, and the chamfered plate portion 21a can be removed.
As will be described later, the lateral side wall 23, the front side wall plate 24, and the chamfered plate portion 21a are removed when the engine bonnet 21 is swung open, and the rear floor plate 88B is as shown in FIGS. Then, it is opened and held in a standing posture. This is to avoid interference with the engine 28 and the radiator 27.

  Next, the relationship between the traveling brake operation tool 41 and the lateral front wall plate 25 will be described. As shown in FIGS. 4 to 6, 7, the lateral front wall plate 25 is positioned further forward of the lateral wall 23, and a longitudinally long punch hole 25 a is formed in the middle portion. 42 has taken the structure which penetrates this vertically long hole 25a and protrudes in the driving | operation part 8. As shown in FIG. That is, a configuration is adopted in which the operation of stepping on the traveling brake operation tool 41 is permitted by the vertically long punch hole 25a.

  As shown in FIGS. 1 and 2, the driving unit 8 includes a speed change lever 40 as an operating tool provided on the operation panel 26, and a traveling brake operating tool 41 provided on the front end side of the driving unit floor 88. . As shown in FIG. 7, the shift lever 40 shifts the hydrostatic continuously variable transmission 43 mounted on the transmission case 11 supported at the front end of the body frame 2, thereby driving the crawler travel device 1. Stop, change speed. As shown in FIG. 11, the travel brake operating tool 41 operates a frictional travel brake 70 as an operation target device equipped in the mission case 11, thereby braking the travel device 1.

  A transmission structure using the transmission lever 40 will be described. As shown in FIG. 11, the speed change structure using the speed change lever 40 employs a speed change structure using the assist motor 45, and detection means (detection means for detecting an operation to the speed change lever 40 in order to drive and control the assist motor 45. (Not shown). Various detecting means can be used, but a proximity sensor or limit switch for detecting the movement of the speed change lever 40 in the forward / reverse direction is employed.

  A configuration in which the shift lever 40 is driven by the assist motor 45 will be described. As shown in FIGS. 11, 12, and 14, the output gear 46 is attached to the output shaft 45 a of the assist motor 45, and the drive attached to the drive shaft 48 </ b> A via the output gear 46 and the two large and small relay gears 47. The power of the assist motor 45 can be transmitted to the gear 48. The drive shaft 48A is loosely supported on a support shaft 40a extending from a support bracket 26D suspended below the operation panel 26, and a drive gear 48 is mounted so that power can be transmitted. The lever base end portion 40A of the speed change lever 40 is loosely supported on the drive shaft 48A.

As shown in FIG. 12, the lever base end portion 40 </ b> A of the speed change lever 40 is loosely fitted on the drive shaft 48 </ b> A, sandwiched between two friction plates 49, 49, and attached to the drive shaft 48 </ b> A by the receiving disk 39. It is attached. A pressing disk 38 is externally fitted to the drive shaft 48A together with the receiving disk 39, a plate spring 37 is interposed between the receiving disk 39 and the pressing disk 38, and the transmission lever 40 is frictionally held by the double nut 38A.
Friction plates 49 are closely attached to both side surfaces of the lever base end portion 40A of the speed change lever 40 so that the speed change lever 40 can rotate integrally with the drive shaft 48A by the friction holding force and resists the friction holding force. Thus, it is configured to be slidable with respect to the drive shaft 48A.

  With the configuration as described above, when the shift lever 40 is operated in one of the forward and backward directions from the neutral position against the friction holding force of the friction holding mechanism 33 with respect to the drive gear 48 that is stopped by the assist motor 45, The speed change lever 40 is slightly rotated with respect to the drive gear 48, and the operation of the speed change lever 40 is detected. In response to this detection operation, the assist motor 45 is driven by a control means (not shown), the drive shaft 48A is rotationally driven by the operation of the assist motor 45, and the friction holding mechanism 33 is frictionally linked to the drive shaft 48A. The shift lever 40 is driven. When the speed change lever 40 rotates to a certain degree, the detecting means moves away from the speed change lever 40 and returns to the non-detection state. At that time, the rotation of the drive gear 48 stops.

  Next, a mode in which the hydrostatic continuously variable transmission 43 is operated by the shift lever 40 will be described. As shown in FIGS. 7, 8, 11, 12, and 14, the mechanical interlocking mechanism 50 for speed change is connected via a first universal joint 53 </ b> A connected to an operation arm 43 a of a continuously variable transmission 43. The first interlocking rod 53, the anti-vibration mechanism 54 provided at an intermediate position of the first interlocking rod 53, the lower connection separating plate 55 fixed to the upper end of the first interlocking rod 53, and the lower connection / separation An upper connecting / separating plate 56 that is bolted so as to be connected to and separated from the plate 55, and a second interlocking rod 57 that rises upward from the upper connecting / separating plate 56 and is covered with a bellows 57A at an intermediate position; The drive arm 40 </ b> B connects the second interlocking rod 57 via a universal join 57 </ b> C attached to the upper end of the second interlocking rod 57. The drive arm 40 </ b> B extends from the lever base end portion 40 </ b> A of the speed change lever 40.

  With the above configuration, in order to open the engine bonnet 21 in the open state, the upper connecting / separating plate 56 and the second interlocking rod 57 are removed by removing the bolts 56A connecting the upper and lower connecting / separating plates 55 and 56. Moves to the opening side together with the shift lever 40 and the engine bonnet 21. The lower connecting / separating plate 55 and the first interlocking rod 53 remain on the machine body frame 2 side together with the mission case 11.

  The neutral operation positioning mechanism C that facilitates obtaining the neutral operation position of the transmission lever 40 when the engine bonnet 21 that has been opened to the open state is returned to the closed state will be described. As shown in FIGS. 7 to 10, the lateral support frame 98 extends from the upper end of the fuselage-side support column 35 toward the front side of the fuselage, and the connecting frame 100 extends from the front end of the lateral support frame 98 toward the laterally outer side. The support frame 99 is extended downward from the connecting frame 100, and the lower end of the support frame 99 is attached and fixed to the mission case 42.

As shown in FIGS. 9 and 10, a vertical support frame 99 erected from the transmission case 11 provided with a hydrostatic continuously variable transmission 43 provided with an operation arm 43 a and attached and fixed to the upper end thereof. The fixing bracket 100, the leg portion 102 fixed to the fixing bracket 100 with screws, and the base plate 101 formed integrally with the upper end of the leg portion 102 constitute a receiving frame. The hydrostatic continuously variable transmission 43 described above is referred to as an operated portion.
On the other hand, the engine bonnet 21 and the driver hood 21 are operated in an open position, in addition to the driver seat 9 constituting the driver section 8, the driver floor frame 18 and the control tower 19 disposed in front of the driver seat 9, and the driver floor frame. The side wall 23 located at the end opposite to the entrance / exit side of 18, the operation panel 26 disposed on the side opposite to the entrance / exit side of the driver's seat 9, and the operation space below it This corresponds to the operation chamber 26B to be secured.
Here, the lateral side wall 23, the operation panel 26, and the operation chamber 26 </ b> B that secures an operation space below the lateral side wall 23, which are formed on the left side portion of the engine bonnet 21, are collectively referred to as an operation tool installation unit.
And the operation tool installation part and the receiving frame constitute a neutral operation positioning mechanism C.

As shown in FIGS. 9 and 10, a connection frame 100 is provided at a connection portion between the lateral support frame 98 and the vertical support frame 99, and the vertical position adjustment mechanism F is provided on the connection frame 100.
A portion of the receiving frame that receives the operation tool installation portion includes a substantially rectangular base plate 101, three leg portions 102 that extend downward from the base plate 101, and a pair of front and rear vibration isolation devices that are placed on the base plate 101. It comprises a rubber plate 103 and a guide plate 104 placed on the anti-vibration rubber plate 103.

  The three legs 102 are composed of two legs 102 arranged in the front-rear direction on the left side and a single leg 102 arranged in the middle of the front-rear side on the right side. Each leg 102 is disposed in a state of penetrating through the connecting frame 100, and is attached to a bracket part 100 </ b> A formed on the connecting frame 100 via a lateral bolt 105. Although not shown, the hole penetrating the lateral bolt 105 is a long hole 102a that is vertically long, and the vertical position of the base plate 101 can be adjusted within the range of the long hole 102a. Here, the horizontal position bolt 105 and the elongated hole 102a constitute the vertical position adjusting mechanism F.

A pair of front and rear anti-vibration rubber plates 103 are arranged on the upper surface of the base plate 101. Further, a guide plate 104 is placed on the anti-vibration rubber plate 103, and the base plate 101, the anti-vibration rubber plate 103, The guide plate 104 is attached and fixed by a countersunk screw 106. A vibration isolating mechanism is constituted by a pair of front and rear vibration isolating rubber plates 103.
The guide plate 104 is formed with a guide inclined surface 104A at the left end portion for guiding the bottom plate 26C of the operation chamber 26B returning to the original closed position from the right side to the upper surface of the guide plate 104.
An angle member 107 is erected on the left end of the base plate 101, and a vibration-proof rubber plate 107 </ b> A is attached to a vertical portion of the angle member 107. The vibration-proof rubber plate 107A can receive the support side plate 26A of the operation chamber 26B, and the engine bonnet 21 can be positioned in the left-right direction. Here, the angle member 107 and the anti-vibration rubber plate 107A constitute a positioning mechanism that defines the position of the operating tool installation portion in the left-right direction of the machine body.

7 and 9, the bottom plate 26 </ b> C of the operation chamber 26 </ b> B that is integrated with the engine bonnet 21 and returns to the original mounting posture is guided to the guide inclined surface 104 </ b> A by the configuration as described above. To the top. The operation chamber 26B reaching the upper surface moves laterally on the upper surface of the guide plate 104 and moves until the support side plate 26A forming the operation chamber 26B comes into contact with the anti-vibration rubber plate 107A.
Thus, since the operation chamber 26B is lifted on the guide plate 104 and placed at a predetermined position, the shift lever 40 attached to the operation panel 26 is moved to the neutral operation position of the hydrostatic continuously variable transmission 43. Matched linkages can be easily performed.

The operation structure of the travel brake pedal as the travel brake operation tool 41 will be described.
As shown in FIGS. 7 and 8 and FIGS. 11 to 15, the traveling brake pedal 41 is disposed in the vicinity of the lateral front wall plate 25 of the driving control unit and penetrates the lateral front wall plate 25 to operate the operation panel 26. Is fixedly attached to the operation shaft 42 supported in a cantilevered manner at the lower end of the first linkage link 44A in the vertically oriented position.

A guide roller 42A is attached to an end portion of the operation shaft 42 opposite to the portion where the traveling brake pedal 41 is mounted, and can be moved up and down along the guide groove of the guide body 22 attached and fixed to the body frame 2. It is.
A second linkage link 44B in a horizontal posture is arranged at the upper end position of the first linkage link 44A, and the second linkage link 44B is mounted so as to face the support side plate 26A that supports the operation panel 26. The bracket 61 is swingably attached.

  As shown in FIGS. 7, 8 and 11 to 15, the base end boss portion 44 b of the second linkage link 44 </ b> B is supported by a support pin 61 </ b> A attached to the attachment bracket 61 so as to be freely rotatable, and the second linkage link. A third linkage link 44C that can swing integrally with the second linkage link 44B extends from the base end boss portion 44b of 44B. A link link mechanism 65 linked to the travel brake 70 and a biasing spring 68 that biases the travel brake pedal 41 to the standby position are connected to the tip of the third link 44C.

  As described above, the second linkage link 44B and the third linkage link 44C support the suspension brake pedal 41 by supporting the base end boss portion 44b on the mounting bracket 61 via the support pin 61A. doing. As shown in FIGS. 11 and 15B, when the travel brake pedal 41 is depressed, the first linkage link 44A and the second linkage link 44B rotate around the support pin 61A while rotating relative to each other. The third linkage link 44C rotates integrally with the second linkage link 44B to enter and operate the traveling brake 70.

  As shown in FIGS. 11 and 14, a limit switch 71 is mounted in the vicinity of the support pin 61A of the mounting bracket 61, and an angle-shaped limit dock 44a is mounted on the third linkage link 44C. As a result, when the travel brake pedal 41 is depressed and the travel brake 70 is turned on, the limit switch 71 is pressed by the limit dog 44a as the third linkage link 44C is operated, and the engine bonnet 21 A signal that can be switched to the open state is output.

As shown in FIGS. 11 and 14, a brake lever 72 for manual operation is provided at an end of the mounting bracket 61 that is separate from the limit mounting position. The brake lever 72 is attached to the mounting bracket 61 so as to be swingable in the vertical direction around the fulcrum 72a, extends the grip 72A on the driver seat side, and is linked to the second end on the opposite end with the swing fulcrum position interposed therebetween. A tip action portion 72B that presses the link 44B is formed.
With the configuration as described above, by lifting the grip portion 72A, the second linkage link 44B can be pushed down by the tip action portion 72B, and the braked state can be maintained.
Note that a torsion spring 72b is wound around the brake lever 72 and is biased in a direction away from the second linkage link 44B. Although a mechanism for maintaining the brake lever 72 in the brake applied state is not shown, a friction holding mechanism, a hooking mechanism, or the like can be provided at a fulcrum position that supports the brake lever 72.

  A mechanism for returning the shift lever 40 to the neutral position of the hydrostatic continuously variable transmission 43 using the traveling brake operation tool 41 will be described. As shown in FIGS. 14 and 15, a neutral return arm 58 having both ends bent and formed on a drive arm 40 </ b> B attached to the lever base end 40 </ b> A of the speed change lever 40 in a substantially parallel state via bolts. Mount and fix. A pair of pullback arms 60 are attached so as to be capable of relative swinging from both ends of the neutral return arm 58, the pullback arms 60 are extended downward, and the extended lower ends are linked by pins 60A.

A pin 60 </ b> A that links the lower ends of both pullback arms 60 passes through the second linkage link 44 </ b> B and also passes through the mounting bracket 61. The hole of the second linkage link 44B through which the pin 60A passes is a simple circular hole, but the through hole 61A formed in the mounting bracket 61 is formed in an arc shape.
On the other hand, the pull-back arm 60 is formed with a long hole 60a extending over substantially the entire length, and the pin 60A can move within the long hole 60a.

With the above configuration, as shown in FIGS. 13 and 15 (b), when the traveling brake pedal 41 is located at the lower depression position, the two pullback arms 60 intersect in a substantially V shape. The pin 60 </ b> A is also located at the lower end of the long hole 60 a of both pullback arms 60. In this state, the posture of the drive arm 40B of the speed change lever 40 forms a triangle with both pullback arms 60 and is restricted to this state.
Such a state is the neutral position of the transmission lever 40.

  When the traveling brake pedal 41 is returned upward from the above state, the first linkage link 44A and the second linkage link 44B swing upward, and the second linkage link 44B approaches the neutral return arm 60. When approaching the neutral return arm 58, the two return arms 60 swing so as to intersect each other about a swing fulcrum with respect to the neutral return arm 58, and the two return arms 60 move the shift lever 40 forward. Allow.

A linkage structure between the machine body side support 35 and the threshing device 3 will be described.
As shown in FIGS. 20 to 23, a plate-like bracket portion 34 </ b> A is attached and fixed to the upper end of a cylindrical support bracket 34 that is attached and fixed in parallel to the fuselage-side column 35. The connection fixture A which connects the upper surface of this plate-shaped bracket part 34A and the side surface which goes to the grain tank 4 of the threshing apparatus 3 is arrange | positioned.

  The connection fixture A is composed of a connection fixing member 84 extended from the fuselage-side column 35 and a bracket 85 attached to the threshing device 3, and the connection rod 84A of the connection fixing member 84 is inserted into the bracket 85. A mating engagement hole 85b is formed. The connection fixing member 84 includes a connection rod 84A and an attachment base 84B that attaches and fixes the base end of the connection rod 84A. The attachment base 84B is placed and fixed on the plate-like bracket portion 34A of the support bracket 34. Yes.

On the other hand, the bracket 85 attached to the side surface of the threshing device 3 will be described. A bracket 85 is attached near the upper end on the side face of the threshing device 3 toward the grain tank 4. The bracket 85 is a plate-like base 85A attached and fixed to the frame frame 3A provided on the side surface of the threshing device 3, and a plate-like member extending toward the grain tank 4 in a posture orthogonal to the plate-like base 85A. 85B.
The plate-like member 85B is provided with a round hole-like engagement hole 85b obliquely up and down. Thus, since the bracket 85 is attached to the side surface of the threshing device 3, the bracket 85 can be used as a lifting tool for lifting the threshing device 3.

  With the configuration as described above, the machine-body-side column 35 and the threshing apparatus 3 are connected by causing the connecting rod 84A to pass through the engagement hole 85b of the plate-like member 85B. As a result, it is configured to be able to move and release to the outside of the fuselage. Therefore, even when the engine bonnet 21 and the driver seat 9 are susceptible to vibration even when mounted and fixed at a predetermined position in the fuselage. Vibration can be suppressed.

  Next, the structure which fixes the grain tank 4 with the action attitude | position in a body is demonstrated. As shown in FIGS. 2 and 3, the grain tank 4 is switched between an action posture for receiving the grain from the threshing device 3 and a non-action posture moved to the outside of the machine body. The grain tank 4 is switched to a non-acting posture by swinging the whole of the longitudinal tank core P of the vertical screw conveyor 6 disposed at the rear end to the outside of the machine body. In this way, the grain tank 4 is switched to the non-acting posture because of the maintenance work for the equipment arranged between the threshing device 3 and the grain tank 4 and swinging to the side of the machine body. This is to avoid interference with the engine bonnet 21 in the open state.

  In the working posture, a configuration for coupling to the coupling fixture A attached to the body-side column 35 will be described. As shown in FIGS. 21 to 24, a connection fixing mechanism B is provided on the side surface of the grain tank 4 that faces the machine body side column 35. The connecting and fixing mechanism B includes a plate-like receiving portion 86 that is attached and fixed to the side surface of the grain tank 4 and a plate-like locking arm 93 that is swingably attached to the plate-like receiving portion 86. It is.

  As shown in FIG. 23, an opening 4A in which a part of a corner portion of the grain tank 4 is cut out is formed in a portion where the coupling fixing mechanism B is installed, and the recess 4 enters the opening 4A. A cover body 95 that closes the opening 4A is mounted while being formed. The cover body 95 is formed on the machine body side column 35 of the grain tank 4 at the upper and lower ends of the back wall 95A, the back wall 95A, the left end of the left side wall 95B, and the right end of the back wall 95A to form a recessed space. A flange portion 95a that is attached and fixed in a superposed state is provided on the side surface.

  The plate-like receiving portion 86 is integrally formed with a rectangular mounting portion 86A that is fixed at three locations of the flange portion 95a and a receiving portion 86B that is formed on the distal end side of the mounting portion 86A. An arcuate receiving portion 86b is formed in the receiving portion 86B. The arc receiving portion 86b is recessed in the lateral direction to receive the connecting rod 84A of the connecting and fixing member 84 extended from the body-side column 35.

On the other hand, the locking arm 93 is pivotally supported by the plate-shaped receiving portion 86 so as to be swingable around the fulcrum 86a, and forms a downwardly recessed portion 93A for receiving the connecting rod 84A of the connecting fixing member 84 from below. is there. A structure is adopted in which the connecting rod 84A is sandwiched and held by the downwardly recessed portion 93A of the locking arm 93 and the receiving portion 86B of the plate-like receiving portion 86 from above and below.
A biasing spring 94 is stretched over the locking arm 93 and the plate-shaped receiving portion 86, and is configured to bias the connecting rod 84A from above and below in a holding direction.

  An operation structure for the locking arm 93 will be described. As shown in FIG. 21, a switching operation lever 96 is swingably supported at the lower end of the side surface to which the locking arm 93 is attached. The switching operation lever 96 and the locking arm 93 are linked by a linkage link 97.

With the above configuration, as shown in FIG. 24 (a), in the action posture of the grain tank 4, with the downwardly recessed portion 93A of the locking arm 93 and the receiving portion 86B of the plate-like receiving portion 86, The connecting rod 84A is sandwiched and held from above and below.
When the grain tank 4 is moved to the non-acting posture side from this state, the locking arm 93 is swung around the attachment point against the biasing force of the biasing spring 94 and separated from the connecting rod 84A. . When the switching operation lever 96 is operated against the urging force of the urging spring 94 after the separation, the locking arm 93 can be switched to the state shown in FIG. 24B and the engagement with the connecting rod 84A. Is released.

[Another embodiment]
(1) The connection fixture includes not only the connection rod 84A and the engagement hole 85b, but also a structure in which the connection pin is connected and fixed with a screw or a connection pin is inserted into the connection rod 84A and secured.
(2) Although the engine bonnet 21 and the driver's seat 9 are integrally moved to the outside of the machine body, a configuration in which only the engine bonnet 21 is moved may be adopted, and the present invention can be applied to a combine that does not include the cabin 5. .
(3) The operated parts include not only the hydrostatic continuously variable transmission 43 but also the transmission case 11, the engine 28, and the like.
(4) As an operation tool, not only the shift lever 40 but also a pedal may be used. Alternatively, an operation tool for switching a clutch may be used instead of the operation tool for shifting.
(5) As the vertical position adjustment mechanism that supports the operation tool installation part on the receiving frame 99 so that the vertical position can be adjusted, a vertical position adjustment mechanism using a long hole and a tightening bolt is used. The vertical position adjusting mechanism may be configured with the above .
( 6) The receiving frame 99 may not include a positioning mechanism that defines the position of the operating tool installation unit in the left-right direction of the machine body.
(7) As a vibration-proof mechanism provided at the portion of the receiving frame 99 that supports the operation tool installation portion, a rubber plate is employed, but a spring or a damper mechanism may be employed.
However, if it is not necessary, it may not be provided.
(8) If not particularly necessary, it is not necessary to form the guide inclined portion 104 for guiding the operation tool installation portion to the placement surface in the receiving frame 99.

Combine side view Overall plan view of combine Top view of the combine with the engine hood open Side view of the driving unit It is a perspective view showing an engine bonnet, (a) shows a state in which the lateral side wall, the front side wall plate, and the chamfered plate portion are attached at predetermined positions, and (b) removes the lateral side wall, the front side wall plate, and the chamfered plate portion, Shows the state where the rear floor board is lifted Top view showing the engine bonnet opened sideways and operated Longitudinal front view showing a mechanism for interlocking a brake operating tool and a traveling brake, a gearshift lever, and a mechanism for linking the gearshift lever and a hydrostatic continuously variable transmission with the engine bonnet closed. Longitudinal front view showing a state where the engine bonnet is in the open state Longitudinal front view showing the neutral operation positioning mechanism that supports the control panel Plan view showing a neutral operation positioning mechanism that supports the control panel Side view showing the linkage mechanism between the shift lever and the hydrostatic continuously variable transmission, and the linkage mechanism between the running brake and the brake operating tool Enlarged longitudinal front view showing a part of the linkage mechanism between the transmission lever and the hydrostatic continuously variable transmission, and the linkage mechanism between the running brake and the brake operating tool Front view showing a traveling brake pedal and an artificial brake operating tool Bottom view showing the linkage mechanism between the traveling brake pedal and the traveling brake (A) A side view showing the switching state of the mechanism for returning to the neutral position for shifting with the forward shift state and the traveling brake switched to the off state, (b) switching the traveling brake to the on state, and changing the traveling shift state to Side view showing the state returned to the neutral position for shifting Rear view showing the installation state of the prop and air cleaner Partially cutaway rear view showing the mechanism that links the air cleaner and engine intake manifold Partially cutaway plan view showing the mechanism that links the air cleaner and engine intake manifold with the engine bonnet closed Partially cutaway plan view showing a mechanism for linking the air cleaner and the engine intake manifold with the engine bonnet switched to the open state The perspective view which shows the connection fixing tool which connects a support | pillar and a threshing apparatus. Front view showing a grain tank provided with a coupling fixing mechanism for coupling the support column and the grain tank The top view which shows the connection fixing tool which connects a support | pillar and a threshing apparatus, a support | pillar, a grain tank, and a connection fixing mechanism. Exploded perspective view showing the coupling and fixing mechanism (A) The front view which shows the connection state of a connection fixing mechanism, (b) The front view which shows the connection cancellation | release state of a connection fixing mechanism (A) The front view showing the height adjustment mechanism of the driver seat and showing the state where the driver seat is set to a low state, (b) The height adjustment mechanism of the driver seat showing the state where the driver seat is switched to a high state Front view (A) The side view which shows the height adjustment mechanism of a driver's seat, and shows the state which set the driver's seat to the low state, (b) The state which showed the height adjustment mechanism of the driver's seat, and switched the driver's seat to the high state Side view Front view showing a state in which a rod-shaped protector is provided on the side surface of the cabin located in the vicinity of the support base that supports the horizontal screw conveyor Top view showing the operation panel of the threshing and cutting clutch lever Side view showing the threshing mowing clutch lever

Explanation of symbols

8 Driving part 40 Shift lever (operating tool)
43 Hydrostatic continuously variable transmission (operated part)
99 Receiving frame 103 Anti-vibration rubber plate (anti-vibration mechanism)
104A Guide slope (guide slope)
E Vertical position adjustment mechanism

Claims (4)

The operation unit is equipped with an operation tool installation unit including an operation tool for operating the operation unit provided in the airframe, and the operation unit is connected to the operation unit in a closed state that covers the operation unit. In the closed state, it is configured to be able to be switched to an open state in which the operated part is opened by moving outward from the machine body, and in the closed state, the operation tool installation part is mounted on a receiving frame extending from the machine body. configuration and tear in order to location is,
It said support frame, Ru Oh provided vertical position adjusting mechanism for supporting the operation tool installation portion freely vertical position adjusting combine. Wherein the support frame, Combine of claim 1 provided with a positioning mechanism for defining the position in the horizontal direction of the machine body of the manipulation tool installation portion. The combine according to claim 1 or 2 , wherein a vibration isolating mechanism is provided at a portion of the receiving frame that supports the operation tool installation portion. The combine according to any one of claims 1 to 3 , wherein a guide inclined portion that guides the operation tool installation portion to a placement surface is formed on the receiving frame.

Images