JP6704039B1 - Combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily perform maintenance work of a threshing device or the like in a combine having a storage hopper without complicating a supporting structure. SOLUTION: A threshing device 4 which is biased to one side in the lateral direction of the machine body, a storage hopper 5 which is provided in a state of being biased to the other side in the lateral direction of the machine body and in a side-by-side relationship with the threshing device 4, and a hopper support which supports the storage hopper 5. A frame 24 and a work table 32 that is located between the threshing device 4 and the storage hopper 5 and extends in the front-rear direction are provided, and the work table 32 is supported by the hopper support frame 24. [Selection diagram] Figure 2

Description

TECHNICAL FIELD The present invention relates to a combine provided with a threshing device for threshing a cut grain culm and a storage hopper for storing the grain subjected to the threshing in a laterally aligned state.

In the above combine, conventionally, a fuel tank is provided on the rear side of the body of the storage hopper, and the upper surface of the fuel tank is used as a work table so that maintenance work of the threshing device and the storage hopper can be performed. There was (for example, refer to Patent Document 1).

JP, 2014-183815, A

In the above conventional configuration, since the fuel tank is merely used as a simple workbench, it is difficult to perform maintenance work, especially cleaning and inspection work of the handling room in a tall and large threshing device. It was

By the way, as a grain storage device that stores the grain obtained by the threshing process, if the configuration includes a grain tank, it has a large support strength to support the grain tank and the unloader for discharging the grain. Since a plurality of columns are present at intervals in the front-rear direction, it was considered to utilize these columns to provide a work table at a high position between the threshing device and the storage hopper. However, in the case of the configuration including the storage hopper, the configuration cannot be applied as it is, because the plurality of columns for supporting the grain tank as described above do not exist.

Therefore, in a combine having a storage hopper, it has been desired that maintenance work for a threshing device and the like can be easily performed without complicating the support structure.

The characteristic configuration of the combine according to the present invention is provided in a state of being biased to the one side in the machine lateral direction, a threshing device for threshing the harvested culm, a state of being biased to the other side of the machine lateral direction, and the threshing device. A storage hopper that is provided in a side-by-side state and that has a storage space that stores the grains that have undergone threshing processing and a discharge unit that can discharge the stored grains, a hopper support frame that supports the storage hopper, and the threshing. A work table provided between the device and the storage hopper and extending in the front-rear direction is provided, and the work table is supported by the hopper support frame, and is connected to the threshing device with the hopper support frame. A right-and-left frame that extends in the left-right direction, a front frame that supports the front part of the storage hopper, a rear frame that supports the rear part of the storage hopper, and a front-back direction that connects the front frame and the rear frame. The front-to-back frame is provided, the left-to-right frame connects the front-to-back frame and the threshing device, and the end of the left-to-right frame on the side of the storage hopper is placed and supported on the front-to-back frame. And the workbench is supported by the left-right frame.

According to the present invention, a work table extending in the front-rear direction is provided between the threshing device and the storage hopper that are in a side-by-side arrangement. For example, when performing maintenance work such as cleaning and inspection of the inside of the threshing device, the work is easily performed by putting the body close to the work target position by working on this work table. be able to.
Further, according to this configuration, the hopper support frame includes the front frame having high rigidity in the vertical direction for supporting the front portion and the rear frame having high rigidity in the vertical direction for supporting the rear portion, which is a front-back frame. Since it is connected by the, the rigidity of the entire hopper support frame is increased in the front-rear direction.
Further, according to the present configuration, the threshing device is a large-sized and highly rigid device, and since the left and right frames connected to such a threshing device are provided in the hopper support frame, the rigidity of the entire hopper support frame is further improved. To be enhanced. The workbench can be firmly supported by effectively using such a left-right frame.
Further, according to the present configuration, the hopper support frame has the front frame and the rear frame that have high rigidity in the vertical direction and the front-rear frame that increases the rigidity in the front-rear direction. The rigidity can be further increased by the left-right frame that connects with the device. Since the storage hopper side end of the left-right frame is placed and supported by the front-rear frame, it can be supported and supported by the front-rear frame even if an excessive load is applied to the workbench. There is no risk of the frame and the front-rear frame being separated, and stable support is possible.

The workbench is supported using a hopper support frame that is provided to support the storage hopper. As a result, it is possible to support the workbench with a simple structure without causing a complicated structure such as a special support member standing upright from the machine body frame.

Therefore, in the combine having the storage hopper, it is possible to easily perform the maintenance work of the threshing device and the like without complicating the support structure.

In the present invention, between the threshing device and the storage hopper, a grain lifting device that conveys the grains carried out from the threshing device upward and supplies the grains to the upper portion of the storage hopper is provided, A stay that supports the device in the portion of the threshing device on the side of the storage hopper is provided, one part of the work table in the front-rear direction is supported by the stay, and the other end of the work table in the front-rear direction is supported. Suitably, the part is supported by the hopper support frame.

According to this configuration, since the hoisting device is provided between the threshing device and the storage hopper, the work platform that extends back and forth between the threshing device and the storage hopper is located in the vicinity of the hoisting device. .. Therefore, by effectively utilizing the stay for supporting the grain lifting device on the threshing device, it is possible to support one end of the work table on the side closer to the grain lifting device without complicating the supporting structure.

In the present invention, as the work platform, a front work platform located on the front side of the grain lifting device and a rear work platform located on the rear side of the grain lifting device are provided, and as the stay, the A front stay located on the front side of the fried apparatus and a rear stay located on the rear side of the fried apparatus are provided, and the rear end of the front work platform is supported by the front stay, and The front end of the front workbench is supported by the hopper support frame, the front end of the rear workbench is supported by the rear stay, and the rear end of the rear workbench is supported by the hopper support frame. Is suitable.

According to this configuration, the location where the grains are discharged in the threshing device is provided at the front-rear intermediate position, so the frying device is located at the front-rear intermediate position in the forward-backward vacant area between the threshing device and the storage hopper. To position. Therefore, as a work table, the front work table located on the front side of the grain lifting device and the rear work table located on the rear side of the grain lifting device are separately arranged to effectively use the empty area. A workbench can be deployed. Then, it is possible to rationally support the front work table and the rear work table by effectively utilizing the front stay and the rear stay that are provided for strongly supporting the grain lifting device with respect to the threshing device. it can.

In the present invention, the workbench is preferably supported by the front-rear frame.

According to this configuration, the workbench can be firmly supported by using the front-back facing frame provided to increase the rigidity of the hopper support frame.

In the present invention, it is preferable that the cross-sectional shape of the front-rear frame has a bent portion.

According to this configuration, since the front-rear frame has the bent portion, the rigidity can be increased without increasing the thickness of the material. Therefore, even though the structure is inexpensive and lightweight, the frame does not move downward even if a load is applied to the workbench. It is possible to reduce the risk of bending to the side.

In the present invention, an electrical component is supported on at least one of the storage hopper and the hopper support frame, and electrical wiring for the electrical component is provided along a front-rear direction frame from a location on the front side of the storage hopper. It is preferable that the frame be supported by the frame in the front-rear direction in a state of extending in the vertical direction.

According to this configuration, it is possible to stably support the electric wiring by using the highly rigid front-back frame.

In the present invention, a working light that illuminates the lower side of the storage hopper is provided as the electrical component, and the working light is preferably supported by the hopper support frame in a state of being positioned below the front-back facing frame. ..

According to this configuration, since the work light is located below the front-rear frame, it is possible to avoid direct rain on the work light even if it is raining, and to improve the durability of the work light. Can be increased.

It is the whole side view of a combine. It is a whole top view of a combine. It is a side view of a grain storage part. It is a rear view of a grain storage part. It is a perspective view of a hopper support frame. It is a top view which shows the relationship between a hopper support frame and its periphery. It is a vertical cross-sectional rear view which shows the connection structure with respect to the threshing device of the front-back direction frame. It is a perspective view which shows the locking structure of a partition plate. It is a vertical cross-sectional rear view which shows the locking structure of a partition plate. It is a perspective view of a support frame. FIG. 7 is a development view of the seat member before being attached to the support frame. It is a vertical cross-sectional rear view of an auxiliary canopy. It is a rear view which shows a front part side holding mechanism. It is a top view which shows the front part side holding mechanism. It is a perspective view which shows a rear part side holding mechanism. It is a perspective view which shows the connection structure of a guard part.

Hereinafter, a case where the embodiment according to the present invention is applied to an ordinary combine as an example of a combine will be described with reference to the drawings.

[Basic configuration of combine]
As shown in FIG. 1 and FIG. 2, the ordinary combine harvester is provided with a driving unit 3 on the front right side of a traveling machine body 2 including a pair of left and right crawler traveling devices 1 and threshing a harvested crop. The apparatus 4 and the grain storage part 5 which stores the grain obtained by the threshing process are provided. The grain storage part 5 is provided in a state of being located on the rear side of the operating part 3, the grain storage part 5 is located on the right side of the machine body, and the threshing device 4 is located on the left side of the machine body. The threshing device 4 is located side by side along the lateral direction of the machine body. Further, the engine 6 is provided below the operating unit 3, and the power of the engine 6 is transmitted to each unit of the combine.

In this embodiment, when defining the anteroposterior direction of the machine body, it is defined along the machine body traveling direction in the working state, and when defining the left and right direction of the machine body, the left side and the right side are defined in a state viewed in the machine body traveling direction view. .. That is, the direction indicated by reference numeral "F" in FIGS. 1 and 2 is the front side of the machine body, and the direction indicated by reference numeral "B" in FIGS. The direction indicated by reference numeral “L” in FIG. 2 is the left side of the machine body, and the direction indicated by reference numeral “R” in FIG. 2 is the right side of the machine body.

A feeder 7 for conveying the harvested culm is connected to the front portion of the threshing device 4 so as to be vertically swingable around a horizontal axis, and a cutting portion 8 having a cutting width substantially equivalent to the lateral width of the machine is connected to the front end of the feeder 7. Has been done. The cutting unit 8 includes a rotary reel 9 that scrapes the planted culm backward, a clipper-type reaping device 10 that cuts and cuts the root of the planted culm, and the cut culm to the lateral side in the lateral direction of the machine body. A lateral feed auger 11 for feeding and transferring is provided, and the grain culms cut by the reaping device 10 are laterally fed by the lateral feed auger 11 and supplied to the feeder 7.

The driver 3 includes a driver's seat 12, a front panel 14 positioned in front of the driver's seat 12 and provided with a plurality of operating tools such as a steering lever 13, and a driver's seat 12 positioned on the left side of the driver's seat 12. A side panel 17 having various operating tools such as the shift lever 15 is provided. A dust-proof duct 18 is provided on the right side of the driver's seat 12 for sucking cooling air to the engine 6 by the action of a radiator fan (not shown). The driving unit 3 is provided with a driving unit canopy 19 that prevents sunlight for a driver sitting on the driving unit 3.

The left and right sides of the threshing device 4 are covered with side walls, and the upper part of the threshing device 4 is covered with a top plate 4B. Although not shown, the harvested grain culm that is conveyed from the feeder 7 has a handling cylinder and a net (not shown) on the upper side of the internal space surrounded by the left and right side walls and the top plate 4B. A handling room is formed to handle the handling. Further, at the lower part of the handling room, there is provided a sorting processing unit that sorts the treated material leaking from the receiving net into grain, second rice such as rice with branch, and waste straw waste.

A threshing device 20 including a screw conveyor is provided on the lateral outside of the right side wall 4A of the threshing device 4 on the grain storage section 5 side. The grains selected by the selection processing unit are discharged to the lateral outside of the grain storage unit 5 side of the threshing device 4 by the first-item recovery screw and sent to the fried device 20. Then, the grain is conveyed upward by the grain lifting device 20 and stored in the grain storage unit 5.

As shown in FIG. 3, the grain storage unit 5 has a storage space for storing the grains subjected to threshing processing, and also has a discharge port 21 as a discharge unit capable of discharging the grains below the storage space. The storage hopper 22, a collection space 23 for collecting the grains discharged from the storage hopper 22, and a hopper support frame 24 for supporting the storage hopper 22 are provided. The configuration of the hopper support frame 24 will be described later in detail.

As shown in FIG. 6, the upper side portion of the grain lifting device 20 is a right side wall as a portion of the threshing device 4 on the side of the storage hopper 22 by a pair of front and rear connecting stays 25 that are substantially L-shaped plate bodies in a plan view. 4A is connected and fixed. In each of the pair of connecting stays 25, one end is connected to the outer peripheral portion of the grain lifting device 20 by welding, and the other end is bolted to the right side wall 4A of the threshing device 4.

The second product obtained in the sorting unit is discharged to the outside laterally of the grain storage unit 5 side of the threshing device 4 by a second product recovery screw (not shown). Then, as shown in FIG. 1 and FIG. 3, the second product is returned to the front side portion of the threshing device 4 by the second product reducing device 26 provided on the lateral side of the grain storing portion 5 side of the threshing device 4. It The waste straws and the like are discharged outside the rear side of the machine body of the threshing device 4.

The exhaust gas after combustion discharged from the engine 6 passes through a muffler 27 located on the upper left side of the engine 6 and then flows through the inside of an exhaust pipe 28 to an outside through an exhaust port 29 as an outlet at the rear of the fuselage. Is discharged. The front portion of the exhaust pipe 28 is inclined rearward and upward, and the exhaust port 29 is located higher than the exhaust inlet port to which the exhaust gas from the engine 6 is supplied. It has been extended to the rear of the aircraft through

In the region between the threshing device 4 and the storage hopper 22, the fuel tank 30 is provided in a region below the storage hopper 22 and below the exhaust port 29. The fuel tank 30 is supported by the machine body frame 2A in a state of protruding toward the rear side of the machine body from the threshing device 4. The fuel tank 30 partially overlaps the storage hopper 22 in a plan view. The fuel tank 30 is formed in a rectangular box shape.

A separator 31 is arranged on the front side of the fuel tank 30, the separator 31 is provided in an oil supply path from the fuel tank 30 to the engine 6, and impurities such as water contained in the fuel are separated and removed by the separator 31. Although not shown, the separator 31 is provided with a cylindrical drain tank, and the drain tank is composed of a transparent member through which the drain water inside can be seen.
A scale is provided along the outer circumference of the drain tank, and the operator can check the degree of pooling of the drain water stored in the drain tank together with the scale.

In a region between the threshing device 4 and the storage hopper 22, a work table 32 is provided at a high position corresponding to an upper end of a side plate of the threshing device 4 so as to cover the upper side of the exhaust pipe 28. The workbench 32 is provided so that a worker can place the workbench 32, for example, for cleaning the inside of the threshing device 4 or performing an inspection work. The structure of the workbench 32 will be described later in detail.

[Grain storage part]
As shown in FIGS. 3 and 4, the storage hopper 22 is provided with a substantially box-shaped rectangular box-shaped portion 22A that forms a storage space having a substantially rectangular parallelepiped shape on the upper side, and three lower narrowed portions on the lower side. A downflow guide portion 22B having a funnel portion 33 is provided. A storage space for storing grains is formed by the entire inner space of the rectangular box-shaped portion 22A and the inner space of the flow-down guide portion 22B. At the lower end of the three funnels 33, a discharge port 21 that can discharge the grain downward is formed, and a manually operated shutter mechanism 34 (see FIG. 4) that can open and close the discharge port 21 is provided. There is.

The collection space 23 is provided with a bag holding portion 35 that holds a grain storage bag for storing the grain discharged from the discharge port 21 of the storage hopper 22 in a vertical posture. The bag holding portion 35 is provided with a plurality of left and right supporting rods 35a extending in a cantilever manner so as to be retained on the upper portion of the grain accommodating bag and maintain a vertical posture. Below the storage hopper 22, a mounting table 36 for receiving and supporting a grain storage bag for storing grains is provided. In the collection space 23 as a working space between the storage hopper 22 and the mounting table 36, a grain storage bag is arranged and the grains flowing down from the discharge port 21 are packed into a bag.

A partition plate 37 is provided at a side end of the mounting table 67 on the side where the threshing device 4 is located, and the partition plate 37 includes a recovery space 23 below the storage hopper 22, the threshing device 4, and the storage hopper. And a space between 22 and 22. The longitudinal direction of the partition plate 37 is along the machine longitudinal direction, and the lateral direction of the partition plate 37 is along the machine vertical direction. The partition plate 37 is provided on the right side of the vehicle body with respect to the fuel tank 30 and the separator 31, that is, on the side opposite to the side where the threshing device 4 is located with respect to the fuel tank 30 and the separator 31. With this configuration, even if the grain storage bag falls down to the side where the threshing device 4 is located, the grain storage bag is received by the partition plate 37 and remains in the collection space 23.

The partition plate 37 is configured so that it can be easily removed, so that maintenance work such as inspection of the separator 31 and inspection of the grain lifting device can be easily performed. As shown in FIGS. 3, 8 and 9, the partition plate 37 is a sandwiching locking portion that sandwiches and engages from the upper side with a vertically oriented edge portion 36a formed at the left end edge of the mounting table 36 at the lower portions on both front and rear sides. 38 are provided. As shown in FIG. 3, in a state in which the front and rear sandwiching locking portions 38 are engaged with the vertically-oriented edge portions 37a, the knob bolts 40 are inserted through the insertion holes 39 formed in the upper portions on both front and rear sides, so that the hopper support frame 24 It is fastened and fixed to a bracket 41 provided on the. When the fastening of the knob bolt 40 is released, the partition plate 37 can be easily removed.

As shown in FIGS. 2 and 4, on the right side of the mounting table 36, there is provided a work deck 42 on which an auxiliary worker who performs grain collection work can ride. The work deck 42 is supported by the body frame 2A so as to be swingable around the longitudinal swing axis Z at the end portion on the inner side (left side) of the body, and has a work posture that extends laterally outward from the body and the inner side of the body. The swinging posture can be changed between the retracted posture and the retracted posture.

Above the storage hopper 22, an auxiliary canopy 43 as an awning member that covers the upper side of the work area is provided. The auxiliary canopy 43 can block sunlight for an auxiliary worker who works in the work area while riding on the work deck 42.

[About auxiliary canopy]
As shown in FIGS. 1, 3 and 4, the auxiliary canopy 43 is at a position higher than the top plate 22C via a pair of fulcrum brackets 44 attached to the upper right portion of the top plate 22C of the storage hopper 22. It is swingably supported around the axis X. The auxiliary canopy 43 is supported so that the posture can be changed between a use state that covers the work deck 42 in the work posture and a retracted state in which the work hood 22 is retracted above the top plate 22C of the storage hopper 22.

As shown in FIG. 10, the auxiliary canopy 43 includes a frame-shaped support frame 45 that supports the entire body, and a seat member 46 that is mounted on the support frame 45. The support frame 45 includes a rectangular peripheral frame portion 47 that surrounds the outer peripheral portion, and two lateral relay rods 49 that extend over the right side 47C and the left side 47D of the peripheral frame portion 47. The lateral relay rod 49 is formed in the shape of a middle bulge whose central side rises upward.

The seat member 46 is made of, for example, a tent cloth material such as tarpaulin, and the seat member 46 is attached and fixed to the support frame 45 by using a laminating surface fastener 50. As shown in FIG. 11, the sheet member 46 is formed with outward extending portions 51 extending in the front-rear direction and the left-right direction with respect to the four sides of the peripheral frame portion 47 of the support frame 45.
The surface fasteners 50 are provided along the outer extensions 51 on the four sides, and the facing surface fasteners 50 are provided along the inner peripheral side of the support frame 45 of the cloth material. When the seat member 46 is mounted on the support frame 45, the seat member 46 is mounted on the support frame 45, and the outer extension 51 is bent to attach the surface fasteners 50 to each other. There is. A cutout 52 is formed in a portion of the outer extension portion 51 of the sheet member 46 corresponding to the lateral relay rod 49, so that the gap is reduced as much as possible even when the lateral relay rod 49 is stuck in a sandwiched state. It is configured.

[About the hopper support frame]
The hopper support frame 24 includes a front frame 53 that supports the front portion of the storage hopper 22, a rear frame 54 that supports the rear portion of the storage hopper 22, and a front frame at positions corresponding to the front and rear end portions of the storage hopper 22. A front-rear front-rear frame 55 that connects the frame 53 and the rear frame 54 is provided.

As shown in FIG. 5, the front frame 53 includes left and right front vertical frames 56A and 56B that are positioned on the front side of the machine and are erected from the machine frame 2A, and upper end portions of the left and right front vertical frames 56A and 56B. The left and right front horizontal frames 57 are connected to each other. The rear-side frame 54 is located on the rear side of the machine body and extends vertically from the left and right rear vertical frames 58A and 58B standing upright from the machine body frame 2A, and the left and right rear vertical frames 58A and 58B. It has a rear lateral frame 59.

The left and right front vertical frames 56A, 56B are arranged side by side on the left and right sides below the storage hopper 22, and the left and right rear vertical frames 58A, 58B are arranged on the left and right sides behind by the storage hopper 22. ing. The left front vertical frame 56A and the left rear vertical frame 58A are arranged so as to overlap in the front-rear direction, and the right front vertical frame 56B and the right rear vertical frame 58B overlap in the front-rear direction. It is located in.

The left side portion of the front horizontal frame 57 is provided with an extending portion 57c extending toward the threshing device 4 side with respect to the left front vertical frame 56A. The connecting bracket 60 is welded and fixed to the extending end of the extending portion 57c, that is, the end on the side where the threshing device 4 is located. Therefore, the front horizontal frame 57 is supported at three points by each of the left and right front vertical frames 56A and 56B and the right side wall 4A of the threshing device 4. The right side portion of the front horizontal frame 57 extends slightly outward to the right from the connection point with the right front vertical frame 56B.

The left side portion of the rear horizontal frame 59 is connected to the upper portion of the left rear vertical frame 58A. The right side portion of the rear horizontal frame 59 extends slightly outward to the right side from the connection portion with the right rear vertical frame 58B.

The front-rear front-rear frame 55 is connected to the left rear vertical frame 58A and the rear horizontal frame 59, and the left front vertical frame 56A and the front horizontal frame 57. In this way, since the front-rear facing frame 55 is disposed substantially directly above the left front vertical frame 56A and substantially above the left rear vertical frame 58A, the support structure of the front-rear facing frame 55 is stable. Become.

As shown in FIG. 7, the front-rear frame 55 is a plate-shaped frame that is wide in the left-right direction and has a cross-sectional shape having a bent portion 55a. That is, in the front-rear frame 55, a bent portion 55a bent downward is formed in the left-right direction (transverse direction) at a position opposite to the side where the threshing device 4 is located, in the front-rear direction. .. That is, the front-rear frame 55 is formed in a substantially inverted U shape in a cross-sectional view in the front-back direction. As a result, the rigidity of the front-back frame 55 is increased by the bent portion 55a.

The hopper support frame 24 is provided with a left-right frame 61 connected to the threshing device 4 and extending in the left-right direction. The left-right frame 61 connects the front-rear frame 55 and the threshing device 4, and the end of the left-right frame 61 on the storage hopper 22 side is placed and supported on the front-back frame 55.

That is, as shown in FIGS. 5 and 7, the left-right frame 61 has substantially band-plate-shaped frame components 61A and 61B that are divided into left and right parts, and extends from the right side wall 4A of the threshing device 4 in the front-rear frame 55. It extends toward the rear part of the front and rear intermediate part. The two frame components 61A and 61B are bolted at the intermediate portion. The left end of the left frame structure 61A is welded and fixed to the connecting portion 62 for the threshing device 4, and the connecting portion 62 is bolted to the right side wall 4A of the threshing device 4. The right end portion of the right frame structure 61B is placed and supported on the upper surface of the front-rear intermediate portion of the front-rear frame 55, which is closer to the rear portion. An inclined surface is formed at an intermediate portion of the left frame structure 61A so as to be positioned downward as the distance from the front-rear frame 55 increases. The upper surface of the right frame structure 61B is formed as a horizontal surface.

As shown in FIGS. 5 and 6, the front support portion 64 is welded and fixed to the front horizontal frame 57, and the rear support portion 65 is welded and fixed to the rear horizontal frame 59. The support members 66 of the storage hopper 22 are bolted to the front support portion 64 and the rear support portion 65, respectively. The support member 66 is formed by bending a plate material, and is bolted to the inclined surface portions at both front and rear end portions of the storage hopper 22. In this way, the storage hopper 22 is supported by the hopper support frame 24.

As shown in FIG. 5, in the grain storage unit 5, a guard unit 70 for protecting an auxiliary worker who is placed on the work deck 42 to perform the grain collection work, and an auxiliary work for performing the grain collection work A handrail 71 that can be grasped and operated by a person is provided. The handrail 71 is made of a round pipe material, and both front and rear end portions are bolted to the right side end portions of the front horizontal frame 57 and the rear horizontal frame 59, respectively.

[About guard part]
As shown in FIG. 6, the guard portion 70 includes a front arm portion 70A, a rear arm portion 70B, and a linear backrest portion 70C. A base end portion of the front arm portion 70A is swingably supported around a longitudinal axis Y by a fulcrum pin 74 provided at a right end portion of the front horizontal frame 57, and the front arm portion 70A is right from the base end portion. Extending in the direction. The base end of the rear arm 70B is swingably supported by a fulcrum pin 75 provided at the right end of the rear horizontal frame 59, and the rear arm 70B extends rightward from the base. .. The longitudinal direction of the backrest portion 70C extends along the front-rear direction.

The guard part 70 is configured by connecting a plurality of divided bodies. That is, the L-shaped member 76 in which the rear arm portion 70B and the backrest portion 70C are integrally formed, and the front arm portion 70A are configured as a divided body. The rear arm portion 70B and the backrest portion 70C are configured as an integral L-shaped L-shaped member 76 by bending a round pipe material into a substantially L shape. A tubular cushion member 77 is attached to the backrest portion 70C. The cushion member 77 is made of a flexible material such as urethane. The front arm portion 70A is composed of a rectangular pipe.

The L-shaped member 76 and the front arm portion 70A are divided. When the guard portion 70 is divided and the tubular cushion member 77 is externally fitted to the backrest portion 70C, the cushion member 77 can be easily attached to the backrest portion 70C. That is, as shown in FIG. 16, a pin hole 70Ca is formed in the front portion of the backrest portion 70C, and an insertion hole 70Aa is formed in the free end portion of the front arm portion 70A. The insertion hole 70Aa is formed so that the backrest portion 70C, which is a round pipe material, can be inserted therethrough. With the front portion of the backrest portion 70C inserted into the insertion hole 71a and the pin hole 70Ca positioned on the front side of the front arm portion 70A, the spring pin 78 is inserted and inserted into the pin hole 73a to be prevented from coming off. As a result, the backrest portion 70C is held in position with respect to the insertion hole 71a. By removing the spring pin 78 inserted and inserted into the pin hole 70Ca, the connection between the front arm portion 70A and the backrest portion 70C is released. The spring pin 78 is provided with a wire 79 through which the spring pin 78 is prevented from falling off during operation.

As shown in FIG. 4, the guard portion 70 is supported around the longitudinal axis Y so as to be vertically swingable between the use state and the stored state. The use state of the guard portion 70 is a state in which the backrest portion 70C is projected beyond the storage hopper 22 to the lateral side of the machine body and can receive the body of the operator (shown by a solid line in FIG. 4). The retracted state of the guard portion 70 is a state in which the backrest portion 70C is retracted laterally inward of the machine body and approaches the top plate 22C of the storage hopper 22 (shown by an imaginary line in FIG. 4).

The front locking portion 80 is welded and fixed to the right end portion of the front horizontal frame 57, and the rear locking portion 81 is welded and fixed to the right end portion of the rear horizontal frame 59. In the use state, the front side locking portion 80 and the front side arm portion 70A are in contact with each other, and the rear side locking portion 81 and the rear side arm portion 70B are in contact with each other to restrict downward swinging.

When the guard part 70 is in use, the front arm part 70A and the rear arm part 70B incline so that they are located lower toward the lateral outside of the machine body, and the backrest part 70C is located at the outer end part of the work deck 42. Project more laterally than the fuselage. That is, when the guard portion 70 is in use, the backrest portion 70C is located below the front-rear axis Y of the front arm portion 70A and the rear arm portion 70B, and the outer end portion of the work deck 42. Is located on the outer side of the machine body, that is, on the back side of the operator who faces the storage hopper 22.

[About holding mechanism]
When the guard portion 70 is in the retracted state, the front arm portion 70A and the rear arm portion 70B respectively incline toward the inside of the vehicle body with respect to the front-rear axis Y when viewed in the vehicle front-rear direction, and the backrest portion 70C includes the front arm portion 70A. Further, they are located on the inner side of the machine body with respect to the front and rear axis Y of the rear arm portion 70B. Further, a front side holding mechanism 82 and a rear side holding mechanism 83 capable of holding the guard portion 70 in the stored state are provided.

The front side holding mechanism 82 will be described.
As shown in FIGS. 13 and 14, of the pair of fulcrum brackets 44 attached to the upper portion of the top plate 22C of the storage hopper 22, the front side holding mechanism 82 is attached to the fulcrum bracket 44 on the front side of the machine body by bolt fixing. ing. The front side holding mechanism 82 is formed by, for example, press molding of a flat plate so as to have a substantially C-shape when viewed in the front-rear direction. A support base end portion 82A located at the left end portion of the machine body is bolted to the fulcrum bracket 44. An upper housing portion 82B on the upper side of the machine body and a lower housing portion 82C on the lower side of the machine body are respectively extended from the support base end portion 82A. A repulsion portion 82D extends forward from the support base end portion 82A.

A pair of upper and lower sides having a narrow separation distance D1 at the right end of the body of the front side holding mechanism 82, that is, at each of the extended distal end of the upper accommodation portion 82B and the extended distal end of the lower accommodation portion 82C. Is formed. The separation distance D1 is smaller than the cross-sectional diameter D2 of the backrest portion 70C. The upper accommodation section 82B and the lower accommodation section 82B and the lower accommodation section 82B and the lower accommodation section 82C are separated from each other such that the distance between the upper accommodation section 82B and the lower accommodation section 82C is substantially equal to or larger than the cross-sectional diameter D2 of the backrest section 70C. The accommodation portion 82C is formed.

The repulsion portion 82D projects rightward of the machine body at a position opposite to the side where the support base end portion 82A is located in the front-rear direction. When a part of the backrest portion 70C enters inside the accommodation space, the repulsion portion 82D and the backrest portion 70C come into contact with each other, and the backrest portion 70C is pressed by the urging force of the repulsion portion 82D. As a result, the accommodation portion of the backrest portion 70C is maintained in the accommodated state without rattling inside the accommodation space S.

The rear side holding mechanism 83 will be described.
The rear holding mechanism 83 is provided near the base end of the rear arm 70B. As shown in FIG. 15, the rear side holding mechanism 83 has a lock operation position that abuts the rear arm section 70B and restricts returning to the operation state when the guard section 70 is in the retracted state, and the rear arm. A lock member 84 that is slidably movable to a release position that allows the lock member 84 to retreat from the moving region of the portion 70B to return to the operating state, and a support member that is substantially U-shaped in side view and that supports the lock member 84 slidably in the front-rear direction. 85 and a coil spring 86 that urges the lock member 84 to move to the lock action position.

The lock member 84 has a shape in which a bar member is bent into a substantially L shape, and is provided in a state of being inserted through insertion holes formed in the front and rear vertical surface portions 85 a of the support member 85. A coil spring 86 is mounted on a portion of the lock member 84 located inside the support member 85, and the coil spring 86 urges the lock member 84 so as to project into the moving region of the rear arm portion 70B.

When the rear arm portion 70B is switched from the use state to the storage state, the rear arm portion 70B is slidably brought into contact with the lock member 84 of the rear arm portion 70B which is urged to move to the lock action state, and the rear arm portion 70B is swayed. A guide tilting member 87 is provided to guide the lock member 84 to move to the release position in response to the movement.

With such a configuration, when the rear arm portion 70B is swung from the used state to the stored state by a manual operation, the lock member 84 is pushed toward the release position by the guiding action of the guide tilting member 87 and retracted. Therefore, the rear arm portion 70B can be moved to the retracted state. When the rear arm portion 70B swings to the retracted state, the lock member 84 automatically returns to the lock operation position by the biasing force of the coil spring 86, so that the guard portion 70 can be prevented from returning to the operation state. ..

[About electrical components]
As shown in FIGS. 3, 4 and 5, as the electrical component D, a work lamp 88 that illuminates the recovery space 23 is supported by the hopper support frame 24 while being positioned below the front-rear frame 55. A bracket 89 configured by an angle member having an L-shaped cross section is integrally connected to the front side surface of the left rear vertical frame 58A at a position below the front-rear frame 55. A work lamp 88 is bolted to the bracket 89. The work lamp 88 is located below the wide front-back frame 55. By arranging in this way, it is possible to prevent rainwater from falling on the work lamp 88.

As the electrical component D, in addition to the work lamp 88, a buzzer 90 for notifying the backward traveling state is provided as shown in FIGS. The buzzer 90 is attached to the support member 66 on the rear side.

The electrical component D provided on the rear portion of the storage hopper 22 such as the work light 88 and the buzzer 90 is provided on the inner side of the front panel 14 or the side panel 17 in the operating unit 3 via the electrical wiring H. It is connected to a control device (not shown). The electrical component D is configured such that the driving operation is switched by the control device based on an operation command from the operation switch 91 (see FIG. 2) provided on the front panel 14, for example. As shown in FIG. 5, the electric wiring H is provided in a state of extending in the front-rear direction along the front-rear direction frame 55. With this configuration, the electric wiring H can be stably supported by utilizing the wide and highly rigid front-back frame 55. The electrical component D provided in the storage hopper 22 includes a storage amount sensor that detects the storage amount of grains in the storage space of the storage hopper 22, although not shown in the drawing. Similarly, it is provided so as to extend in the front-rear direction along the front-rear direction frame 55.

〔Workbench〕
Next, the workbench 32 will be described.
As shown in FIGS. 2, 3 and 5, as the workbench 32, a front workbench 32A located on the front side of the grain lifting device 20 and a rear workbench 32B located on the rear side of the grain lifting device 20 are provided. It is equipped. The rear side of the front work table 32A is supported by the front connecting stay 25 as a front stay, and the front side is supported by the hopper support frame 24. Further, the rear work table 32B has a front side supported by a rear connecting stay 25 as a rear stay and a rear side supported by a hopper support frame 24.

To add the explanation, as shown in FIG. 5, the front workbench 32A located on the front side of the grain lifting device 20 is configured by a plate body that is wide in the left-right direction, and the front right side of the front workbench 32A. The location is supported from the lower surface side by a connecting member 93 which is erected from the front horizontal frame 57 of the hopper support frame 24. The connecting member 93 is formed by bending the upper and lower sides of the strip plate into a substantially L shape, the lower end portion is welded and fixed to the upper surface of the front horizontal frame 57, and the upper end portion is bolted to the front workbench 32A. A rear right portion of the front workbench 32A is received and supported by a substantially L-shaped support bracket 94 welded and fixed to the front connecting stay 25 in a state of abutting from the lower surface side. The left side portion of the front workbench 32A is bolted at a plurality of points dispersed in the front-rear direction while being placed and supported on the top plate of the threshing device 4.

The rear workbench 32B is configured by a plate body that is wide in the left-right direction, and as shown in FIG. 7, a front side right portion is integrally provided with a substantially L-shaped reinforcing body 95 in a side view. It is received and supported from the lower surface side through a reinforcing body 95 by a substantially L-shaped support bracket 96 welded and fixed to the side connecting stay 25.

As shown in FIGS. 5 and 7, the rear right side portion of the rear workbench 32B stands upright from the first support bracket 97 erected from the right side wall 4A of the threshing device 4 and the left-right direction frame 61 of the hopper support frame 24. It is supported by the second support bracket 98 provided. The left side portion of the rear workbench 32B is bolted at a plurality of points dispersed in the front-rear direction while being placed and supported on the top plate of the threshing device 4. The vertical plate 99, which is located on the side of the support bracket 96 and bolted to the rear connecting stay 25, is a support plate for supporting the exhaust pipe.

The first support bracket 97 is formed by bending a strip plate into a substantially Z shape, has its lower end portion bolted to the right side wall of the threshing device, and extends upward in an inclined posture in which it is located on the right side as it goes upward. ..
The upper end portion is bolted to the right vertical surface portion 92 of the rear workbench 32B. The second support bracket 98 is formed by bending a strip plate into a substantially L shape, and a lower end portion thereof is welded and fixed to a flat surface portion on the right side of the inclined surface of the left frame constituent body 61A in the left-right frame 61, It extends upward. The upper end of the second support bracket 98 is bolted to the right vertical surface portion 92 of the rear workbench 32B.

In this way, the front workbench 32A and the rear workbench 32B are stably supported by the connecting stays 25, the hopper support frames 24, and the threshing device 4 on the front and rear sides of the grain lifting device 20, respectively. ing.

[Another embodiment]
(1) In the above-described embodiment, the workbench 32 is divided into the front workbench 32A and the rear workbench 32B, the rear side of the front workbench 32A is supported by the front connecting stay 25, and the front workbench 32A is provided. The front side of the rear worktable is supported by the hopper support frame 24, the front side of the rear workbench is supported by the rear stay, and the rear side of the rear workbench is supported by the hopper support frame. The rear side of the front work table 32A and the front side of the rear work table 32B may be separately provided instead of the stay 25 and supported by dedicated support members. Further, the workbench 32 may have a shape in which the workbench 32 is continuously connected in the front-rear direction, or may be configured to be supported only by the hopper support frame 24.

(2) In the above embodiment, the workbench 32 is configured to be supported by the front-rear frame 55 and the left-right frame 61, but instead of this configuration, the workbench 32 is supported by the front frame 53 and the rear frame 54. It may be configured to be.

(3) In the above-described embodiment, the front-rear frame 55 has a cross-sectional shape having the bent portion 55a, but instead of this configuration, the front-rear frame 55 may be a flat plate, a rectangular tube member, a cylindrical member, or the like. It may be configured in a shape.

INDUSTRIAL APPLICABILITY The present invention can be applied to a combine provided with a threshing device for threshing a cut grain culm and a storage hopper for storing the grain subjected to the threshing in a laterally aligned state.

4 Threshing device 20 Lifting device 22 Storage hopper 24 Hopper support frame 25 Stay 32 Working table 32A Front working table 32B Rear working table 53 Front frame 54 Rear frame 55 Front-rear frame 55a Bending section 61 Left-right frame 88 Working light D Electrical equipment H Electric wiring

Claims (7)

A threshing device that is provided in a state of being biased to one side in the lateral direction of the machine body and that threshes the harvested culm,
Storage that is provided in a state of being biased to the other side in the left-right direction of the machine body and in a state of being side-by-side with the threshing device, and that has a storage space that stores the grain that has undergone threshing and a discharge unit that can discharge the stored grain With a hopper,
A hopper support frame that supports the storage hopper,
A workbench located between the threshing device and the storage hopper and extending in the front-rear direction is provided,
The workbench is supported by the hopper support frame,
The hopper support frame, a left-right frame connected to the threshing device and extending in the left-right direction, a front frame supporting a front part of the storage hopper, a rear frame supporting a rear part of the storage hopper, and the front side. A front-back front-back frame that connects the frame and the rear frame is provided,
The left-right frame connects the front-back frame and the threshing device, and the end portion of the left-right frame on the storage hopper side is placed and supported on the front-back frame,
A combine in which the workbench is supported by the left-right frame. Between the threshing device and the storage hopper, a grain lifting device for transporting the grains carried out from the threshing device upward and supplying the grain to the upper portion of the storage hopper is provided,
A stay for supporting the fried apparatus on the storage hopper side of the threshing apparatus is provided,
The combiner according to claim 1, wherein the workbench has one end supported by the stay and the other end supported by the hopper support frame. As the workbench, a front workbench located on the front side of the grain lifting device and a rear workbench located on the rear side of the grain lifting device are provided,
As the stay, a front stay located on the front side of the fried apparatus and a rear stay located on the rear side of the fried apparatus are provided,
The front worktable has a rear side supported by the front stay and a front side supported by the hopper support frame.
The combiner according to claim 2 , wherein the rear workbench has a front side supported by the rear stay and a rear side supported by the hopper support frame. The workbench, Combine according to any one of claims 1 to 3 which is supported by the front and rear direction frame. The longitudinal orientation frame, Combine according to any one of claims 1-4 cross-sectional shape is a shape having a bent portion. Electrical components are supported on the storage hopper or the hopper support frame,
The combine according to claim 5 , wherein the electrical wiring for the electrical component is supported by the front-rear frame in a state of extending along the front-rear frame from a position on the front side of the storage hopper. A work light that illuminates the lower side of the storage hopper is provided as the electrical component,
The combine harvester according to claim 6 , wherein the work light is supported by the hopper support frame while being positioned below the front-rear frame.

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