JP2013063022A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester capable of increasing capacity of a grain collecting tank by reducing a dead space between a lower surface side of a projecting portion of the grain collecting tank and an upper surface side of a threshing device with a simple structure.SOLUTION: The combine harvester is configured such that: the threshing device 5 and the grain collecting tank 60 are arranged in parallel in a right and left direction of a machine body; a part extended to the upper side of the threshing deice 5 and overlapping on the upper side of the threshing device 5 is provided in an upper part of the grain collecting tank 60; and a top board 55 located on the upper surface side of a threshing chamber 50 of the threshing device 5 is slidably moved in a horizontal direction along the upper surface of the threshing chamber 50 to allow the upper surface side of the threshing chamber 50 to be openable.

Description

  The present invention includes a threshing device that pivotally supports a barrel along the longitudinal direction of the machine body, and a grain recovery tank that stores the grain that has been threshed in the horizontal direction of the machine body. The present invention relates to a combine that is provided at the upper part with a portion extending to the upper side of the threshing device and overlapping the upper side of the threshing device.

As described above, conventionally, the techniques shown in [1] and [2] below are known as a combine configured to extend the upper part of the grain recovery tank to the upper side of the threshing device and partially overlap. Yes.
[1] Provided on the upper side of the grain recovery tank is a projecting portion that is formed to project toward the threshing device side, and the lower surface side of the projecting portion is inclined to the inclined surface that goes obliquely upward toward the side away from the grain recovery tank. The combine which comprised the upper surface side of the threshing apparatus so that rocking opening and closing was possible by forming (for example, refer patent document 1).
[2] A protruding portion formed to protrude toward the threshing device side is provided on the upper side of the grain recovery tank, and the protruding portion is configured to be retractable into the inner side of the grain recovery tank. The combine which comprised the upper surface side of the threshing apparatus so that rocking | fluctuation opening / closing was possible in the state of drawing in (for example, refer patent document 2).

JP-A-2005-59 (paragraphs [0019], [0020], FIG. 3 and FIG. 4) JP 2006-333784 A (paragraphs [0019], [0020], FIG. 3, FIG. 4)

  According to the conventional configuration described in [1] above, since the lower surface side of the protruding portion of the grain recovery tank is formed as an inclined surface, the upper surface side of the threshing device can be rocked and opened. The inclined surface must be formed so as to leave a relatively large space in order to allow the upper surface to swing and open, and the space formed between the inclined surface and the upper surface side of the threshing device There is room for improvement in that the capacity of the grain collection tank cannot be increased by the size of the part.

  According to the conventional configuration described in [2] above, the lower surface side of the protruding portion of the grain recovery tank and the upper surface side of the threshing device can be configured to be close to each other. However, there is room for improvement in that it causes structural complexity to move the protruding portion out and out.

  The present invention has been made paying attention to such a situation, and has a simple structure and reduces the dead space between the lower surface side of the protruding portion of the grain recovery tank and the upper surface side of the threshing device. It aims at providing the combine which can increase the storage capacity of a grain collection tank.

[Solution 1]
The technical means of the present invention taken in order to solve the above problems includes a threshing device that pivotally supports a barrel along the longitudinal direction of the aircraft, and a grain recovery tank that stores the threshed grain. It is a combine provided side by side in the direction and provided on the upper part of the grain recovery tank with a portion extending to the upper side of the threshing apparatus and overlapping on the upper side of the threshing apparatus,
The top plate located on the upper surface side of the threshing apparatus is slid in the horizontal direction along the upper surface of the treatment room, so that the upper surface side of the treatment room can be opened.

[Operation and effect of invention according to Solution 1]
As described above, the combine of the present invention according to Solution 1 is configured to open the upper surface side of the chamber by sliding the top plate located on the upper surface side of the chamber in the horizontal direction. The space between the top plate on the upper side of the handling chamber and the overlapping part of the grain recovery tank located above the top plate on the upper side of the handling chamber is as small as possible without requiring a space for moving the top plate on the upper side of the handling chamber in the vertical direction. Can be set to something.
Accordingly, there is an advantage that the capacity of the grain recovery tank can be increased as much as possible without causing a complicated structure in which the grain recovery tank itself is moved from a position located on the upper surface of the handling chamber.

[Solution 2]
A second solving means in the combine of the present invention is that a rail guide is provided along the front-rear direction between the upper surface side of the handling chamber and the top plate, and the top plate is guided by the rail guide. It is configured to be slidable to the rear side of the machine body.

[Operation and effect of invention according to Solution 2]
As described above, in the combine of the present invention according to the solving means 2, the top plate on the upper side of the handling chamber can be guided by the rail guide and slid to the rear side of the machine body. The posture is stabilized, and the sliding movement of the top plate in the narrow space between the upper surface of the handling room and the overlapping part of the grain collection tank is easy to perform while avoiding contact with the grain collection tank or the barrel. There is an advantage.
In addition, since the top plate is moved to the rear side of the aircraft, it interferes with the cutting part existing on the front side, making it difficult to operate, or protruding from the width of the aircraft as in the case of moving it to the side. There is little possibility of becoming.

[Solution 3]
The third solving means in the combine according to the present invention is characterized in that the receiving net provided in the handling chamber is configured to be extractable to the rear side of the machine body along the axis of the handling cylinder.

[Operation and effect of invention according to Solution 3]
As described above, the combine of the present invention according to the solving means 3 is configured so that the receiving net can be extracted to the rear side of the machine body along the axis of the handling cylinder. This can be done without requiring a large working space for taking out the receiving net around the outside of the handling chamber in the radial direction.
In other words, the area of the receiving net around the axis of the handling cylinder is relatively large. To take out the receiving net in the radial direction of the handling cylinder, a large area for taking in and out the receiving net is required. It is necessary to form an opening in the handling room or to secure a large working space around the handling room. In view of this, the present invention is configured so that it can be pulled out rearward along the axis of the cylinder by utilizing the characteristics of the shape of the receiving net that is a shape having a small area when viewed in the axial direction of the cylinder. ing. This makes it easy to carry out maintenance work for the receiving net by forming a large opening for taking out the receiving net in the handling room or by pulling the receiving net outside the handling room without requiring a large working space around the handling room. There is an advantage of becoming.
Further, since the receiving net is moved to the rear side of the machine body, there is little possibility that it becomes difficult to perform the extraction operation by interfering with the cutting part existing on the front side.

[Solution 4]
The 4th solution in the combine of this invention is equipped with the dust feed valve which guides the flow direction of the to-be-processed object threshing-processed in a handling chamber in the handling chamber surface side of the said top plate, This dust feeding valve, It is characterized by comprising a movable dust delivery valve capable of changing and adjusting the flow direction of the workpiece and a fixed dust delivery valve provided upstream of the movable dust delivery valve in the rotational direction.

[Operations and effects of invention according to Solution 4]
As described above, in the combine of the present invention according to the solution means 4, the dust feed valve is configured by combining the fixed dust feed valve and the movable dust feed valve. The guide range of the entire dust delivery valve is set as the sum of the workpiece guidance range of the movable dust delivery valve. Therefore, the workpiece guide range with only the movable dust delivery valve can be set narrower than that of a structure in which the dust delivery valve is configured with only the movable dust delivery valve without the fixed dust delivery valve. It is possible to set a relatively narrow distance between the dust feeding valve and the rotation trajectory of the handling cylinder.
In other words, the movable dust delivery valve swings around the vertical axis around the top surface of the top plate that is curved along the outer periphery of the arc-shaped barrel, and sets the guide direction of the workpiece. However, since this movable dust delivery valve is also formed in an arc shape along the shape of the inside of the handling chamber, when the circumferential length of the movable dust delivery valve becomes longer, the movable dust delivery valve is located on the side farther from the vertical axis of the movable dust delivery valve. There is a risk of interference with the rotation trajectory of the barrel when the end portion is greatly swung.
For this reason, when the circumferential length of the movable dust delivery valve is long, the movable dust delivery valve and the outer circumference of the barrel are arranged so that the entire swing operation range of the movable dust delivery valve does not interfere with the rotation trajectory of the barrel. Although it is necessary to set the vertical distance relatively large, as in this invention, by using a fixed dust feed valve in addition to the movable dust feed valve, the circumferential length of the movable dust feed valve from the vertical axis Even if a short one is employed, a required object guide mechanism as a dust feed valve can be exhibited.

Therefore, by adopting a movable dust delivery valve that has a short circumferential length from the vertical axis, it is possible to arrange the movable dust delivery valve as close as possible to the rotation trajectory of the barrel. Along with this, the vertical height position of the top plate on the upper surface of the handling chamber can be set lower, and in this connection, the capacity of the grain recovery tank can be further increased.
In addition, since the fixed dust supply valve is located upstream of the movable dust delivery valve, the workpiece to be processed that flows in the handling chamber is guided in advance so as to be directed in the direction of the treatment product guided by the movable dust delivery valve. Therefore, it is advantageous in that it is easy to smoothly guide the processed material by the movable dust delivery valve.

It is a left view of a normal type combine. It is a top view of a normal type combine. It is a rear view of a normal combine. It is sectional drawing in the direction orthogonal to the barrel axis of a threshing apparatus. It is a top view which shows a threshing apparatus. It is a perspective view which shows the positional relationship of a threshing apparatus and a grain collection | recovery tank. It is a perspective view which shows the removal | desorption structure of the receiving net in a threshing apparatus. It is a perspective view which shows the attachment structure of the radiator cover of a drive part. The attachment structure of the radiator cover of a drive part is shown, (a) shows a closed state, (b) is a top view which shows an open state.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Overall structure of the combine]
FIG. 1 is an overall side view of an ordinary combine according to the present invention, and FIG. 2 is an overall plan view. As shown in these drawings, the ordinary combine according to the present invention includes a pair of left and right crawler travel devices 10 and 10 on the lower side of the body frame 1 to constitute a self-running body.
As shown in FIG. 2, the self-propelled aircraft includes a driving unit 2 equipped with an engine 20 at a front portion of the aircraft frame 1, and a driver seat 30 on the upper side of the driving unit 2. A driving unit 3 having the above is provided.
A threshing device 5 and a grain recovery unit 6 are arranged side by side in the lateral direction of the machine body on the rear side of the operation unit 3, and a reaping unit 4 having a feeder 4 </ b> A connected to the front portion of the threshing device 5 is provided. Yes.

[Composition of the cutting part]
As shown in FIGS. 1 and 2, the cutting unit 4 includes the feeder 4 </ b> A in which a feeder conveyor 41 is housed inside a transfer case 40, and a preprocessing frame 42 connected to the front end of the feeder 4 </ b> A. The pre-processing device 4B is supported by.
Due to the up-and-down swing operation of the feeder 4A on the threshing device 5, the platform 42a located at the lower part of the pretreatment frame 42 is lowered to the ground, and the platform 42a is lifted from the ground. It is configured to be capable of moving up and down.

The pretreatment device 4B scrapes the pair of left and right dividers 43, 43 that are located at the front portion of the pretreatment frame 42 and that weed the planted culm to be cut, and the tip of the planted culm to be cut. The rotary reel 45 to be cut, the clipper-type harvesting device 44 for harvesting the planted culm to be harvested, and the whole harvested culm to be brought to the front side of the feeder 4A and sent to the entrance 40a of the transport case 40 of the feeder 4A. And an auger 46 to be conveyed.
The feeder 4A includes a slat type feeder conveyor 41 therein, conveys the harvested cereals fed from the auger 46 side to the rear end portion of the feeder 4A, and threshes from a discharge port 40b located at the rear end portion. The handling room 50 of the apparatus 5 is configured to supply the whole of the harvested cereal stock from the head to the tip.

[Composition of threshing unit]
The threshing device 5 includes a handling cylinder 52 and a sorting device (not shown) disposed inside a handling chamber 50 via a handling cylinder shaft 51 having a longitudinal axis x facing the body. The handling cylinder 52 is rotationally driven by the driving force of the threshing drive system transmitted to the trunk shaft 51 to thresh, the threshing processed material is sorted into threshing grains and waste straw waste, and the waste straw waste is collected in the handling chamber 50. It discharges out of the machine from the dust outlet 50a at the lower end of the terminal, and the threshing grains after the sorting process are supplied to the grain collection tank 60 of the grain collection unit 6.

  As shown in FIGS. 3 to 5, the handling chamber 50 includes a pair of front and rear vertical frame portions 12 and 12 erected on the body frame 1 on both front and rear ends of the handling chamber 50, and the vertical frame portion 12. , 12 and the upper frame portion 13 connected to the upper end side of each other, the side frame 11 formed in a gate shape is provided on both the left and right sides, and the front wall (not shown) is fixed to the front end side of the left and right side frame 11 The rear wall 53 is detachably attached to the rear end side of the left and right side frames 11 with a retaining bolt 53a.

  Further, as shown in FIGS. 1 and 2, the left and right side frames 11 are provided on the outside of the left side frame 11 so as to be able to swing left and right around a vertical axis y on the rear side. The upper lateral side wall 54a, the front lateral side wall 54b connected to the engagement portion (not shown) formed on the left side frame 11 on the front side of the upper lateral side wall 54a, and the upper lateral side wall 54a Lower lateral side walls 54c and 54c connected to an engagement portion (not shown) formed on the side frame 11 below the front lateral side wall 54b are fitted.

  The left side frame 11 has an upper side wall 54a, a front side wall 54b, a lower side wall 54c, 54c, a space between the upper side wall 54a and the front side wall 54b, and Although not shown, a portion corresponding to the space between the lower lateral side walls 54c and 54c extends over the longitudinal frame portions 12 and 12 before and after the side frame 11, or the upper frame portion 13 of the side frame 11 and the like. A connecting frame member connected to the machine body frame 1 is provided, and the upper side wall 54a, the front side wall 54b, and the lower side walls 54c and 54c are connected to the connecting frame member in a fitted state. An engaging portion is formed.

The upper lateral side wall 54 a is provided to open and close an opening formed in the lateral side portion of the handling cylinder 52 so that maintenance can be performed in the peripheral portion of the handling cylinder 52. The opening formed is set to have front and rear and upper and lower opening ranges so that all or most of the lateral side of the handling cylinder 52 is opened laterally in the open state.
The front lateral wall 54b opens and closes an opening formed on the lateral side on the rear end side of the feeder 4A to facilitate inspection, and the opening formed on the lateral side on the rear end side of the feeder 4A. Is set to an appropriate size for checking the location of the rear end side of the feeder 4A. Further, the lower lateral side walls 54c and 54c are for opening and closing the opening formed on the lateral side of the sorting device for easy inspection, and the opening formed on the lateral side of the sorting device is a portion of the sorting device. The opening range is set to an appropriate size for inspection.
Of the left and right side frames 11, a flat right side wall 54d is fixed by welding to the outside of the right side frame 11 so as to cover substantially the entire right side surface of the handling chamber 50. .

A top plate 55 that constitutes the upper surface side of the handling chamber 50 is attached to the upper frame portion 13 located at the upper part of the left and right side frame 11.
As shown in FIGS. 3, 4, and 6, the top plate 55 has a portion corresponding to the upper portion of the handling cylinder 52 as viewed in the direction along the axial center x of the handling cylinder 52 in the front-rear direction. Along the outer periphery of the rotation trajectory R, it is formed into a shape bulging into a curved surface close to an arc shape.

As shown in FIGS. 4 and 5, a dust feeding valve 56 for guiding the flow direction of the object to be processed flowing in the handling chamber 50 is provided on the surface of the top plate 55 on the handling chamber surface side.
The dust feed valve 56 is a movable dust feed valve 56A provided so as to swing around a pivot shaft core p1 in the vertical direction of a pivot shaft 56a provided at a fixed position of the top plate 55 of the handling chamber 50. And a fixed dust feed valve 56B bolted to the top plate 55, located upstream of the movable dust feed valve 56A in the flow direction of the workpiece (clockwise in FIG. 4). It consists of

Of these movable dust feed valve 56A and fixed dust feed valve 56B, the fixed dust feed valve 56B has an inner peripheral edge 56Ba of an arc around the same axis as the axis x of the barrel 52 as shown in FIG. And has the same curvature as the rotation locus R of the handling cylinder 52.
On the other hand, the inner peripheral edge 56Aa of the movable dust feeding valve 56A is formed by an arc having a smaller curvature and a larger curvature radius than the inner peripheral edge 56Ba of the fixed dust feeding valve 56B. This is to avoid entering the rotation locus R of the handling cylinder 52 when the movable dust feeding valve 56A is rotated around the pivot axis p1. The inner peripheral edge 56Aa of the movable dust feeding valve 56A and the inner peripheral edge 56Ba of the fixed dust feeding valve 56B are always located outside the rotation locus R of the handling cylinder 52 so as not to interfere with the handling cylinder 52. Has been.

  As shown in FIG. 5, the fixed dust feeding valve 56 </ b> B is located on the rear side in the front-rear direction of the machine body in the downstream direction in the moving direction of the workpiece on the outer periphery of the handling cylinder 52 (same as the rotation direction of the handling cylinder 52). The guide surface 56Bb is relatively gentle so that the upstream side of the guide surface 56Bb is located on the front side in the longitudinal direction of the machine body with respect to the surface f perpendicular to the axis x of the handling cylinder 52. It is arranged in an inclined posture having a different inclination angle θ1.

  The movable dust feeding valve 56A is disposed on the downstream side of the fixed dust feeding valve 56B. The movable dust feeding valve 56A is disposed around the pivot shaft core p1 in the vertical direction of the operation lever 56b integrally connected to the pivot shaft 56a. In association with the swing operation, one movable dust feed valve 56A connected to the operation lever 56b is configured to swing around the pivot axis p1. And, through the connecting rod 56C that connects the vicinity of the upstream end of the one movable dust delivery valve 56A and the vicinity of the upstream end of the other movable dust delivery valve 56A at the connecting shaft core p2 portion. The other movable dust delivery valves 56A are also configured to swing around the respective pivot shafts p1 in accordance with the operation of the operation lever 56b.

  The inclination angle θ2 of the guide surface 56Ab of the movable dust feeding valve 56A with respect to the surface f orthogonal to the axis x of the handling cylinder 52 is the state where the operation lever 56b is operated to the most gentle inclination side as shown in FIG. The guide surface 56Bb of the fixed dust feed valve 56B has an angle greater than the inclination angle θ1. As the operating lever 56b is swung counterclockwise from the state shown in FIG. 5, the inclination angle θ2 increases, and at the maximum, the movable dust feeding valve by the operating lever 56b at the position shown by the solid line in FIG. The inclination is obtained by adding the maximum operation angle amount α of the operation lever 56b to the inclination angle θ2 of the guide surface 56Ab of 56A.

  The operating lever 56b is provided so that its grip portion is positioned near the rear left side of the driver's seat 30, and the operator who sits on the driver's seat 30 can look back and grasp and operate while sitting down. It is configured to be possible. As shown in FIG. 5, the adjustment operation position of the operation lever 56b is selectively inserted / removed with respect to a plurality of locking holes 56d provided at predetermined intervals. It is configured to be positioned at each adjustment operation position by operating.

A handling cylinder 52 provided in the inside of the handling chamber 50 is provided with a tapered tapered cylinder part 52B connected to the front side of a cylindrical straight cylinder part 52A, and two spiral scratches are provided on the tapered cylinder part 52B. An insert blade 52Ba is provided.
The straight body portion 52A following the tapered body portion 52B on the rear side includes six bar members 52Aa along the front-rear direction in the circumferential direction between the tapered body portion 52B and the disc-shaped portion 52C on the rear end side. These are constructed in a substantially cylindrical shape by being installed at predetermined intervals.
Each bar member 52Aa constituting the straight body portion 52A is provided with a large number of teeth 52Ab erected outward in the radial direction of the handle cylinder 52. The trajectory of the tip portion is the rotation trajectory R of the handling cylinder 52. The entire handling cylinder 52 is configured to be removable to the rear side of the handling chamber 50 by removing the rear wall 53 of the handling chamber 50.

In the handling chamber 50, the lower half side of the handling cylinder 52 is used for sorting so as to allow the grain to leak while suppressing the leakage of straw scraps in the processed material that has been threshed. The receiving net 57 in which a large number of small holes are formed is provided.
As shown in FIGS. 4 and 7, the receiving net 57 is supported on the left and right side frames 11, and is formed on a shape retaining frame 58 formed in a U shape in a direction view along the axis x of the handling cylinder 52. On the other hand, a pair of left and right receiving nets 57 curved in a partial arc shape are configured to be detachable by inserting and removing in a direction along the axis x.
The receiving net 57 can be attached / detached from the rear side of the handling chamber 50 by removing the rear wall 53 of the handling chamber 50.

[Open structure of the top plate]
As described above, the top plate 55 constituting the upper surface side of the handling chamber 50 has a portion corresponding to the upper portion of the handling drum 52 as viewed in the direction along the longitudinal axis x of the handling drum 52. And the upper frame portion 13 positioned above the left and right side frames 11 around the bulged portion. A rail guide 55A and a rising step portion 55B, which will be described later, are provided as mounting base portions to be attached.

As shown in FIG. 4, the rail guide 55 </ b> A of the top plate 55 is in contact with the flat guide surface 55 </ b> Aa that contacts the upper surface of the upper frame portion 13 in the left and right side frames 11 and the lateral outer surface of the upper frame portion 13. The corresponding lateral guide surface 55Ab is formed on the left and right sides of the top plate 55 over the entire length of the top plate 5 in the front-rear direction.
At both the front and rear ends of the top plate 55, only a flat portion that is flush with the flat guide surface 55Aa of the rail guide 55A is formed, and below the flat portion, it corresponds to the lateral guide surface 55Ab. Such a surface along the vertical direction is not formed.

As shown in FIG. 4, the rail guide 55 </ b> A is slightly raised from the inner end side of the flat guide surface 55 </ b> Aa at a position near the center of the handling chamber 50 in the left-right direction, and then the left-right direction of the handling chamber 50 in the left-right direction. By having a flat portion toward the center side, a rising step portion 55B that forms a space portion s is formed on the inner side of the handling chamber 50.
The rising step portion 55B has, in its inner space portion s, an upper mounting plate 57a of the receiving net 57, an upper retaining plate 58a of the shape retaining frame 58, and their upper mounting plate 57a and upper retaining plate. A fixing bolt 57c that fastens 58a to the upper frame portion 13 of the side frame 11 can be positioned.
A rising protrusion 57b is formed on the lateral outer edge of the upper mounting plate 57a of the receiving net 57, and this rising protrusion 57b is formed on the inner side of the handling chamber 50 of the rising step portion 55B. By contacting the facing surface, it can also play an auxiliary role in guiding the top plate 55 by the rail guide 55A.

  The rail guide 55A of the top plate 55 is inserted into a stop hole 55Ac provided near the rear end of the rail guide 55A and a screw fixing hole 13a formed in the upper frame portion 13 of the side frame 11. Then, they are connected and fixed using fixing operation bolts 59 that are screwed together.

The top plate 55 configured as described above operates the fixing operation bolt 59 to remove the fixing operation bolt 59 from the fixing hole 13a for screwing formed in the upper frame portion 13 of the side frame 11. By detaching, the entire top plate 55 can be slid so as to be pulled out to the rear side of the handling chamber 50 as indicated by a virtual line in FIG.
When the top plate 5 slides, the flat guide surface 55Aa of the rail guide 55A contacts the upper surface of the upper frame portion 13 in the left and right side frames 11, and the lateral guide surface 55Ab of the rail guide 55A By contacting the laterally outer surface of the upper frame portion 13, the top plate 55 can be easily and stably slid to the rear side in the horizontal direction along the upper surface of the handling chamber 50.

As shown in FIGS. 4 and 7, a flange-like plate piece 57d extending in the vertical direction is formed on the lower end side of the receiving net 57, and a rail-like groove portion 58b into which the flange-like plate piece 57d can be inserted is retained. It is formed along the front-rear direction at the lower central portion of the form frame 58.
Therefore, by removing the fixing bolt 57c that fastens the upper mounting plate 57a and the upper retaining plate 58a together with the upper frame portion 13 of the side frame 11, the receiving net 57 is guided to the rail-shaped groove 58b of the shape retaining frame 58. However, it can be operated so as to be pulled out to the rear side of the handling chamber 50.

[Configuration of the grain recovery unit]
The grain recovery unit 6 arranged side by side in the machine direction of the threshing device 5 has a grain recovery tank 60 for storing the threshed grains after the sorting process, and the grains in the grain recovery tank 60. A transport auger 61 for carrying out is provided.
As shown in FIGS. 2, 3, and 6, the grain collection tank 60 is provided on the upper part thereof so as to extend to the upper side of the threshing device 5 and overlap with the upper side of the threshing device 5. A protruding portion 62 is provided.

  The projecting portion 62 has a top surface 55 of the handling chamber 50 swinging up and down around an axis in the horizontal direction between the top surface 55 of the handling chamber 50 and the top plate 55 of the handling chamber 50. Although it does not have an interval in the vertical direction that can be opened, it has a sufficient gap for sliding the top plate 55 in the front-rear direction as described above. And it has the space margin which can look into the upper surface side of the open handling chamber 50 by sliding the top plate 55 to the back side of the handling chamber 50.

[Others]
As shown in FIGS. 2, 8, and 9, in the prime mover 2, a driver seat 30 is mounted on an engine bonnet 21 that covers the engine 20, and a radiator cover 22 is disposed on the lateral outer side of the engine bonnet 21. It is provided. The radiator cover 22 is attached to the engine bonnet 21 near the front end of the engine bonnet 21 so that it can swing left and right around the axis p3 in the vertical direction by means of a hinge fitting 23.
The front end of the radiator cover 22 is parallel to the vertical axis core p3 of the hinge fitting 23 on the end of the radiator cover 22 and the spring plate 25 for maintaining the posture attached to the engine bonnet 21 side. The radiator cover 22 is configured so that the posture of the radiator cover 22 can be maintained in either the closed posture or the open posture by the rod-like posture restricting body 24 that is rotatably attached around the axis p4. It is.

  That is, the spring plate member 25 is provided with two posture restriction positions a and b formed by bending the spring plate member 25 into a mountain shape, as shown in FIGS. 8 and 9A. In the state where the end portion of the 24 that is far from the axis p4 on the radiator cover 22 side is engaged with the attitude regulating position a on the side of the attitude regulating body 24 that is close to the axis p4 on the radiator cover 22 side, the radiator cover 22 is maintained in a state where the lateral outer side portion of the engine bonnet 21 is closed as shown.

As shown in FIG. 9B, when the radiator cover 22 is changed to the open posture around the vertical axis p3 of the hinge bracket 23, the end of the posture restricting body 24 becomes the axis p4 on the radiator cover 22 side. From the state of being engaged in the posture restriction position a on the side close to, the spring plate material 25 is pushed up to move to the posture restriction position b on the side farther from the axis core p4 on the radiator cover 22 side and engaged and held at that position. By doing so, the posture is maintained in an open state.
If the radiator cover 22 is operated to the closing side, the posture is changed to the state where the lateral outer side portion of the engine bonnet 21 is closed as shown in FIGS. 8 and 9A again, and this state is maintained.

[Other Embodiment 1]
In the above-described embodiment, the structure in which the top plate 55 is moved to the rear side of the handling chamber 50 in the front-rear direction is shown, but not limited thereto, for example, the top plate 55 is slid and moved laterally outward in the horizontal direction of the body. It is also possible to adopt a suitable moving direction in the horizontal direction, such as moving it in the left-right direction after moving it slightly in the front-rear direction, or moving it in the left-right direction after moving slightly in the left-right direction.
Other configurations may be configured similarly to the above-described embodiment.

[Second Embodiment]
In the above-described embodiment, the rail guide 55A is configured by using a part of the top plate 55. However, the present invention is not limited to this, and for example, a rail guide 55A that is separate from the top plate 55 is provided, An appropriate structure such as a guide 55A fixed on the side of the handling chamber 50 may be adopted.
Other configurations may be configured similarly to the above-described embodiment.

[3 of another embodiment]
In the above-described embodiment, a plate material that covers the entire upper surface side of the handling chamber 50 as the top plate 55 is shown. However, the present invention is not limited to this, and for example, the upper surface side of the handling chamber 50 and the side of the handling chamber 50 are used. It may have a structure that also serves as a part of the lateral side surface part so as to cover a part of the side surface.
Moreover, you may employ | adopt the top plate 55 comprised by the some member so that the upper surface side of the handling chamber 50 may be covered with a some member as the top plate 55. FIG. In this case, you may comprise so that a moving direction may be moved for each top plate 55 to the front side and the back side, or to the separate directions of the side side and the back side.
Other configurations may be configured similarly to the above-described embodiment.

[4 of another embodiment]
In the above-described embodiment, the handling cylinder 52 has a structure in which the straight body portion 52A is configured by the bar member 52Aa. However, the present invention is not limited thereto, and the drum body is configured such that the straight body portion 52A is configured in a cylindrical shape. It may be a thing.
Other configurations may be configured similarly to the above-described embodiment.

  The combine of the present invention is not limited to the above-described ordinary combine, but can be applied to a self-removing combine.

DESCRIPTION OF SYMBOLS 5 Threshing apparatus 50 Handling chamber 52 Handling cylinder 55 Top plate 55A Rail guide 56 Dust feeding valve 56A Movable dust feeding valve 56B Fixed dust feeding valve 57 Receiving net 60 Grain collection tank x axis core

Claims (4)

A threshing device that pivotally supports the barrel along the longitudinal direction of the machine body and a grain collection tank that stores the threshed grain are juxtaposed in the left-right direction of the machine body, and the upper part of the grain collection tank is A combine that extends to the upper side of the threshing device and has an overlapping portion on the upper side of the threshing device,
The combine configured to open the upper surface side of the handling chamber by sliding the top plate located on the upper surface side of the threshing device in the horizontal direction along the upper surface of the handling chamber.   A rail guide extending in the front-rear direction is provided between the upper surface side of the handling chamber and the top plate, and the top plate is configured to be slidable to the rear side of the machine body guided by the rail guide. The combine according to claim 1.   The combiner according to claim 1 or 2, wherein the receiving net provided in the handling chamber is configured to be extractable to the rear side of the machine body along the axis of the handling cylinder.   A dust feed valve for guiding the flow direction of the workpiece to be threshed in the handling chamber is provided on the surface of the top chamber, and the dust feed valve is movable to change and adjust the flow direction of the workpiece. The combine according to any one of claims 1 to 3, comprising a dust feed valve and a fixed dust feed valve provided upstream of the movable dust feed valve in the rotational direction.

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