JP4636208B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

Conventionally, a narrow guide for weeding uncut cereals behind the machine body from the cutting part has been provided, and the narrow guide is divided into a front side narrow guide and a rear side narrow guide, and the narrow guide enters and exits the machine body. A configuration in which the tip of the adjusting shaft is attached, the adjusting shaft is mounted on the body frame, and a fixing device for fixing the adjusting shaft in and out is provided is known. (Patent Document 1)
In addition, conventionally, a narrow guide for weeding uncut cereals behind the machine body from the cutting part is provided, and the narrow guide is divided into a front side narrow guide and a rear side narrow guide. A configuration in which the tip of the adjustment shaft that enters and exits is attached and a drive device including a motor is provided on the adjustment shaft is known. (Patent Document 2)

JP-A-6-30638 Japanese Utility Model Publication No. 5-67229

Among the known examples, the former has a problem that the operation from the control unit is difficult and adjustment is troublesome because the narrow guide is adjusted by the adjustment shaft to adjust the protruding amount.
In other words, the narrow guide adjustment is not a one-time adjustment. In a combine that works while circling in the field, the overhanging direction of the cereals differs depending on the traveling direction, and the amount of narrow guide overhang changes each time. By doing so, it is possible to prevent the uncut cereals from being stepped over.

  In this regard, the former of the above-mentioned known examples can be remotely operated by a motor, but since the motor is provided in the vicinity of the narrow guide where there are many contaminants such as sawdust, dust and mud, failure and durability are low. There is a problem.

  The present application is devised to enable remote operation of a narrow guide that does not use a motor.

The invention described in claim 1 includes a threshing device (3) provided with a traveling device (2) below the machine body frame (1 ) and provided with a cereal supply and transfer device (19) on the upper side of the machine frame (1). A glen tank (5) is provided on the other upper side of the fuselage frame (1), a control part (7) is provided on the front side of the glen tank (5), and a cutting part (4 is provided in front of the fuselage frame (1). ), A narrow guide (20) for weeding uncut cereals from the side of the cutting part (4) to the side of the threshing device (3) is provided, and the narrow guide (20) is connected to the front narrow guide ( 21) and the rear narrow guide (22), and the front mounting portion (35) at the front end of the front narrow guide (21) is connected to the cutting unit (4) and the weeding device (8) at the front end. front and rear movable and times before side guide member provided to a separatory grass frame supporting (23) (36) Mounted for the side attachment portion after the rear end of the rear narrow guide (22) (45) is mounted movably back and forth to the side guide member (46) after providing the body frame (1), said front narrow guide mounting a front end portion of the rear end portion (21) and the rear narrow guide (22) bendably, first shaft tip of the front support arm (38) of the rear narrow guide (2 2) the vertical axis rotatably mounted only in (39), said mounted for vertical axis rotation in the second axis (41) at the distal end portion of the base portion of the mounting member of the support arm (38) (40), said mounting member ( 40) is attached to the front lateral frame (32) of the airframe frame (1) so as to be rotatable around a third axis (58) in the front-rear direction, and the support arm (38) is attached to the support arm (38). Attach the first spring (42) that constantly urges the narrow guide (20) in the retracted direction, When a load applied to the frame (1) is applied to the door (20), the front end of the front narrow guide (21) and the rear end of the rear narrow guide (22) are connected to the front guide member (36) and the rear side. The third shaft (58) has a mounting member (40) for supporting a support arm (38) around the third shaft (58). mounting a second spring (59) which constantly urge a direction to lower pivot, the said steering unit and the other end of the end attachment Rutotomoni the wire cable of the support arm (38) to a wire cable (43) (43) connecting from (7) to the narrow guide narrow guide operating member for operating overhang and store (20) (26), said mounting member (40) on the upper wire cable for under with attaching one end of the upper and lower wire cable (60) Is the other end (60) which was combined, characterized in that connected to the narrow guide vertically operating lever for vertical operation (20) (61) provided in the steering unit (7).

Invention of Claim 2 is the entrance which provided the said wire cable (43) and the wire cable for up-and-down (60), the 1st spring (42), and the 2nd spring (59) in the front side of the threshing device (3). The combine according to claim 1, wherein the combine is arranged below the funnel (34).
According to a third aspect of the present invention, a narrow guide operating portion (having an operation groove for rotating and guiding the narrow guide operating member (26) in the front-rear direction at a portion on the narrow guide (20) side of the control portion (7) is provided. 50) is provided. The combine according to claim 1 or claim 2 is provided.

According to the first aspect of the present invention, when the vertical wire cable (60) is pulled by the operation of the vertical operation lever (61), the support arm (38) is rotated upward, and the position of the protruding narrow guide (20) is set. It can be raised and guided away from the fuselage up to the upper part of the uncut grain. In particular, in the vicinity of the starting end of the cereal supply and transport device (19) for supplying cereals to the threshing device (3), it is possible to prevent the uncut cereal from being caught by the cereal supply and transport device (19).
Further, when the narrow guide is moved to the extended position and the retracted position, the entire length of the narrow guide is short at the extended position and the entire length is long at the retracted position. According to the invention of claim 1, the narrow guide (20) is provided. The change in the overall length of the narrow guide (21) is distributed to the front and rear ends of the front narrow guide (21) and the rear end of the rear narrow guide (22) and absorbed by the respective forward and backward movements. Absorption of changes in the overall length can be performed smoothly and quickly. As a result, the narrow guide (20) is less deformed by the load (impact), and the load at the time of overhanging and storing is also reduced. That is, when a load is applied to push the narrow guide (20) toward the machine body frame (1), the front end of the front narrow guide (21) and the rear end of the rear narrow guide (22) move back and forth, and instantly. The load can be released to prevent breakage.
According to the invention of claim 2, in addition to the effect of the invention of claim 1, the wire cable (43) and the upper and lower wire cables (60), the first spring (42) and the second spring (59) are provided. Since it arrange | positions under the inlet funnel (34) provided in the front side of the threshing apparatus (3), it can prevent that the shavings accumulate in these members, and can adjust these members easily. .
According to the invention described in claim 3, in addition to the effects of the invention described in claim 1 or claim 2, the narrow guide (20) is extended and retracted from the control unit (7) according to the state of the field. Operation becomes possible, and operability and workability can be improved.

The side view of the harvesting part vicinity of a combine. FIG. The front view. The top view of a narrow guide. The perspective view of a connecting rod and a guide. The top view near a narrow guide. The top view of the other Example of a narrow guide. FIG. The same side view. The top view of the link mechanism which projects and retracts a narrow guide. The overhanging state top view. The top view of the link mechanism of the narrow guide extended state. FIG. 3 is a schematic plan view of a narrow guide stored, short-hanging, and overhanging. The side view of a narrow guide operation part. The top view of a narrow guide operation part. The front view of a narrow guide operation part. The schematic side view which shows the positional relationship with a narrow guide when a cutting part goes up and down. Side view of a narrow guide substituted for another model. FIG. The sliding state top view of a narrow guide. The top view of the front side attachment part of a narrow guide. The front view of the other Example of a narrow guide. FIG. The side view of the other Example of a narrow guide. FIG.

  An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a machine frame, 2 denotes a traveling device provided at a lower position of the machine frame 1, 3 denotes a threshing device provided at an upper position of the machine frame 1, and 4 denotes a threshing device 3. The cutting part provided in the front side, 5 is a glen tank, 6 is a discharge auger for discharging the grains in the glen tank 5, and 7 is a control part.

  The mowing unit 4 has a weeding device 8 arranged side by side at the most advanced position, and a pulling device 9 that raises the cereals weeded by the weeding device 8 on the rear side of each weeding device 8. A cutting blade 10 is provided on the rear side of the device 9, and a culm transporting device 11 that transports the culm cut by the cutting blade 10 from above the cutting blade 10 is provided.

  The configuration of the cereal conveying device 11 is arbitrary. In FIG. 6, 12 is a scraping device that constitutes a part of the cereal conveying device 11, 13 is a rear conveying device that conveys the cereals backward, and 14 is a handling device. A stock transporter that also serves as a depth adjusting device, 15 is a cutting frame, 16 is a support frame, and 17 is a support base.

  The terminal end of the cereal conveyance device 11 (rear conveyance device 13) faces the start end of the cereal supply and conveyance device 19 that supplies the threshing device 3 with the cereal. The rear transport device 13 and the stock transport device 14 are positioned to the side of the control unit 7 on the rear side of the cutting unit 4.

  Thus, a narrow guide (uncut grain stalk weeding device) 20 is provided for weeding uncut cereals from the side of the weeding device 8 of the cutting unit 4 to the rear side of the threshing device 3. The narrow guide 20 is formed by a shaft rod member, and is divided into a front narrow guide 21 and a rear narrow guide 22 (FIG. 2). A front end portion of the front narrow guide 21 is rotatably attached to a weeding frame 23 to which the weeding device 8 is attached, and a rear end of the front narrow guide 21 and a front end of the rear narrow guide 22 are bent by a shaft 24. The portion of the shaft 24 is attached to be a bent portion K provided in the front and rear middle of the narrow guide 20. The rear end of the rear narrow guide 22 is attached to an arbitrary fixed portion of the body frame 1 so as to be movable back and forth.

  One end of an operation transmission means 25 is attached to the front and rear intermediate portion (bending portion K) of the narrow guide 20, and the other end of the weeding frame 23 is connected to a narrow guide operation member (operation lever) 26 provided in the operation portion 7. To do.

Therefore, the narrow guide 20 can be extended and retracted from the control unit 7 and the operability can be improved.
The operation transmitting means 25 guides the operating link 27 attached to the narrow guide operating member 26, the connecting rod 28 connecting the operating link 27 and the narrow guide 20, and the moving direction of the connecting rod 28. A guide 29 is used.

The lower portion of the operation link 27 is attached to the connecting rod 28 by a shaft 30 so as to be rotatable.
The connecting rod 28 is formed in a square tube shape in cross section, and similarly, is slidably inserted through a guide 29 formed in a square tube shape in cross section. The guide 29 is provided with a moving groove 31 in which a mounting portion of the shaft 30 that is a shaft attachment portion between the operation link 27 and the connecting rod 28 moves. The guide 29 is fixedly attached to the front side horizontal frame (front side horizontal frame) 32 of the machine body frame 1.

Reference numeral 33 denotes a guide for guiding the movement of the narrow guide operating member 26.
When the operation transmitting means 25 pushes the narrow guide operating member 26 downward, the operation link 27 moves the connecting rod 28 outward and causes the narrow guide 20 to project. On the contrary, when the narrow guide operation member 26 is pulled upward, the operation link 27 moves the connecting rod 28 inward to store the narrow guide 20.

For this reason, the amount of protrusion (allowance) of the narrow guide 20 can be adjusted by the position of the narrow guide operating member 26.
Moreover, since the narrow guide 20 is moved in and out by the operation transmission means 25, the operation force can be reduced.

Further, the overhang allowance of the narrow guide 20 can be adjusted according to the height position of the narrow guide operating member 26, and the operability is improved.
Therefore, if the operation link 27, the connecting rod 28, and the guide 29 of the operation transmission means 25 are arranged in a horizontal line state in plan view (FIGS. 2 and 6), the operation transmission force can be further reduced, which is preferable. .

  That is, by making the bent portion K (shaft 24) of the narrow guide 20 and the narrow guide operating member 26 of the operation transmitting means 25 the same in the front-rear position, the operation link 27 and the connecting rod 28 of the operation transmitting means 25 are aligned horizontally. The operability of the operation transmission means 25 is improved.

  In addition, the narrow guide operation member 26 is provided so as to move up and down on the fixed portion of the control unit 7, and the connection rod 28 only moves within the guide 29 provided on the front lateral frame 32. The operating space can be reduced, contributing to the miniaturization of the entire aircraft.

In this case, the operation link 27, the connecting basket 28, and the guide 29 are provided on the front side of the threshing device 3 in order for the mash supply and transfer device 19 to smoothly supply the mash to the threshing chamber (not shown) of the threshing device 3. If it is located below the provided inlet funnel 34, the space can be used effectively, which is preferable.

  FIG. 7 and subsequent figures show another embodiment of the narrow guide 20, and the front attachment portion 35 at the front end of the front narrow guide 21 is moved and rotated to the front guide member 36 provided on the weed frame 23. Install freely.

Therefore, when the narrow guide 20 moves in and out by overhanging and retracting, the front end of the front narrow guide 21 is moved back and forth, so that the narrow guide 20 is smoothly moved in and out.
The narrow guide 20 is attached to the front portion of the rear narrow guide 22 so that the tip of the support arm 38 can be rotated by a shaft (first shaft) 39, and the base of the support arm 38 is an attachment member provided on the front lateral frame 32. A shaft (second shaft) 41 is rotatably attached to 40. A spring (first spring) 42 that constantly biases the support arm 38 in the retracting direction of the narrow guide 20 is attached to the support arm 38.

  One end of the operation transmission means 25 is attached to the shaft 41 or the support arm 38, and the other end of the operation transmission means 25 is connected to a narrow guide operation member (operation lever) 26 provided in the control unit 7. In the embodiment, the operation transmission means 25 is constituted by a wire cable 43, and the wire cable 43 is connected to a narrow guide operation member 26 provided in the control unit 7.

Reference numeral 44 denotes an arm to which the wire cable 43 is connected (in some drawings such as FIG. 8, the tip of the wire cable 43 and the arm 44 are not connected for easy understanding).
The rear attachment portion 45 of the rear portion of the rear narrow guide 22 is movably attached to a rear guide member 46 provided on the body frame 1.

  Therefore, the extension / retraction mechanism for extending / retracting the narrow guide 20 is constituted by a link mechanism constituted by the support arm 38, and the bent portion K of the narrow guide 20 is formed at the tip of the support arm 38. When a load that pushes the narrow guide 20 toward the machine body frame 1 is applied, the front end of the front narrow guide 21 and the rear end of the rear narrow guide 22 move forward and backward, respectively, thereby releasing the load instantaneously and preventing damage.

  That is, when the narrow guide 20 is moved to the extended position and the retracted position, the entire length of the narrow guide 20 is short at the extended position, and the full length is long at the retracted position. Since it is distributed and absorbed in two places, front and rear, and the rear end of the rear narrow guide 22, the absorption can be performed smoothly and quickly.

Therefore, the narrow guide 20 is less deformed with respect to the load (impact), and the load caused by the so-called “kose” at the time of extension / storage is also small.
The front guide member 36 of the cutting part 4 and the rear guide member 46 of the machine body frame 1 are formed by shaft rod members, respectively, and the front attachment part 35 and the rear attachment part 45 of the front narrow guide 21 and the rear narrow guide 22 are formed. Is formed in a ring shape so that the narrow guide 20 can be moved smoothly by reducing the respective contact areas, and the front mounting portion 35 and the rear mounting portion 45 are formed by the front guide member 36 and the rear guide member 46, respectively. It also rotates in directions other than the axial direction, and when the load that pushes the narrow guide 20 toward the machine body frame 1 is applied, it deforms to release the load and prevent breakage.

  Thus, the narrow guide operation member 26 is engaged with the operation groove 51 provided in the narrow guide operation unit 50 of the control unit 7 to pull the wire cable 43 toward the control unit 7 (see FIG. 11 for understanding). For the sake of simplicity, a side view and a front view of the narrow guide operating portion 50 are also shown in the same drawing), and the overhanging operation groove 51A to be engaged at the overhanging position in the operation groove 51 is a narrow guide. When a large impact (load) is applied to 20 in the retracting direction, the narrow guide operation member 26 is configured to be detached from the overhang operation groove 51A (FIG. 15).

  Therefore, normally, the narrow guide 20 is projected by the pulling operation of the wire cable 43 by the narrow guide operating member 26. However, when a large impact (load) is applied, the narrow guide operating member 26 is detached from the projecting operation groove 51A. The narrow guide 20 is moved in the retracted direction by the elasticity of the spring 42 to prevent damage or deformation.

  Further, when the narrow guide operation portion 50 is formed with a plurality of operation grooves 51 and the projecting amount of the narrow guide 20 is operated stepwise, the projecting amount of the narrow guide 20 according to the state of the field. Can be adjusted, which is preferable.

In the embodiment, three-stage operation grooves 51 of “storage”, “tank”, and “standard” are formed (FIGS. 13 and 15).
Thus, the bent portion K between the rear end of the front narrow guide 21 and the front end of the rear narrow guide 22 is configured so that the front end of the front narrow guide 21 can move up and down around the bent portion K, and the front guide member 36 is arranged. The front mounting portion 35 of the front narrow guide 21 movably mounted on the front side is configured to move the front guide member 36 when the cutting unit 4 is moved up and down (FIG. 17).

That is, since the position of the rotation center (vertical rotation center) S of the cutting part 4 and the bent part K that becomes the rotation center of the front narrow guide 21 of the narrow guide 20 is shifted back and forth, the cutting part 4 moves up and down. When rotating, the positional relationship between the front guide member 36 of the cutting part 4 and the front mounting part 35 of the front narrow guide 21 changes, but the front guide member 36 of the cutting part 4 and the front mounting part 35 of the front narrow guide 21 By moving relatively, the position shift between the cutting unit 4 and the narrow guide 20 is absorbed.

  Accordingly, the rear guide 22 is attached to the fuselage frame 1 and the overall length of the narrow guide 20 is increased. However, the misalignment between the cutting portion 4 and the narrow guide 20 due to the vertical rotation of the cutting portion 4 is absorbed. Yes. The narrow guide 20 is prevented from being damaged or deformed.

  In addition, even in other models in which the positional relationship between the machine body frame 1 and the cutting unit 4 is different, the narrow guide 20 can be attached by providing the front guide member 36 in the cutting unit 4, and versatility is improved. Be made.

  Further, since the narrow guide 20 is provided with a spring 42 that constantly urges the narrow guide 20 in the retracted direction on the support arm 38 that is pivotally attached to the rear narrow guide 22, when the narrow guide operating member 26 is extended, The wire cable 43 is pulled, and the wire cable 43 rotates the support arm 38 in the protruding direction of the narrow guide 20, and the front end side of the support arm 38 outwards the front part of the rear narrow guide 22 and the rear part of the front narrow guide 21. Move and narrow guide 20 is extended.

  On the other hand, when the narrow guide operating member 26 is retracted, the wire cable 43 is loosened. Therefore, the wire cable 43 causes the spring 42 to act to rotate the support arm 38 in the retracting direction of the narrow guide 20 for storage.

Accordingly, the narrow guide 20 is extended and stored by remote control from the control unit 7.
In addition, since the narrow guide 20 is extended and retracted by the rotation of the support arm 38, the load caused by the operation “knitting” is small and the operability is improved.

  Thus, both the front guide member 36 of the cutting unit 4 and the rear guide member 46 of the machine body frame 1 are constituted by shaft rod members, and the front mounting part 35 and the rear mounting part 45 are composed of the front guide member 36 and the rear side. Since the guide member 46 is slidably attached to the guide member 46, the amount of change in the entire length of the narrow guide 20 can be absorbed smoothly, and can be substituted for other models as it is, thereby improving versatility (FIGS. 18 and 20). ).

  Thus, the weeding device 8 is formed to have a predetermined left and right width, and is attached to the tip of the weeding frame 23 whose base is fixed to the fixed part of the cutting part 4, and the weeding frame 23 is guided to the front side of the cutting part 4. The member 36 is configured so as to be positioned on the inner side (the already cut ground side) than the outer edge on the uncut ground side of the weeding device 8 (FIG. 21).

That is, the front attachment portion 35 of the narrow guide 20 is positioned (hidden) behind the weeding device 8 to prevent an increase in contact resistance with the uncut grain culm on the uncut ground side.
In this respect, the configuration of the overhang mechanism of the narrow guide 20 is realized by a configuration in which the front side of the front narrow guide 21 is slid linearly, so that a rational configuration is obtained.

Thus, the mounting member 40 has its base portion pivotally attached to the front lateral frame 32 by a lateral axis (third axis) 58 in the front-rear direction, and the support arm 38 is always lowered to the horizontal axis 58 around the horizontal axis 58. A spring (second spring) 59 urging in the rotating direction is attached (FIGS. 22 and 23). One end of an up / down wire cable 60 is separately attached to the attachment member 40 that supports the support arm 38, and the up / down wire cable 60 is connected to an up / down operation lever 61 for up / down operation provided separately in the control unit 7.

  Therefore, when the vertical wire cable 60 is pulled by the vertical operation lever 61, the support arm 38 is rotated upward, the position of the overhanging narrow guide 20 is increased, and the upper portion of the uncut grain cedar is guided away from the airframe. In particular, it is possible to prevent the culm supply / conveyance device 19 from entraining uncut cereals near the starting end of the cereal supply / conveyance device 19.

  That is, the support arm 38 is supported by the mounting member 40 that moves the narrow guide 20 up and down, and is moved up and down by the spring 59 and the up and down wire cable 60, which is preferable because the number of parts can be reduced.

Therefore, if the wire cable 43 and the spring 42, and the up and down wire cable 60 and the spring 59 are positioned below the inlet funnel 34 provided on the front side of the threshing device 3, the space can be used effectively, which is preferable. (FIGS. 24 and 6).

  Further, accumulation of sawdust on the wire cable 43 and the spring 42 and the upper and lower wire cables 60 and the spring 59 can be prevented, and the installation and adjustment work can be easily performed.

  Each of the above-described embodiments is illustrated or described separately or mixed for easy understanding, but these can be combined in various ways, and the expression, configuration, action, etc. It is not limited, and there are of course cases where a synergistic effect is obtained.

DESCRIPTION OF SYMBOLS 1 Airframe frame 2 Traveling device 3 Threshing device 4 Harvesting part 5 Glen tank 7 Control part
Eight quartering device 19 Grain supply / feed device 20 Narrow guide 21 Front narrow guide 22 Rear narrow guide
23- minute weed frame 26 Narrow guide operation member
32 Front side horizontal frame (front side horizontal frame)
34 entrance funnel
35 Front mounting part
36 Front guide member 38 Support arm
39 axes (first axis)
40 mounting members
41 axes (second axis)
42 spring (first spring)
43 wire cable
45 Rear mounting part
46 Rear guide member 50 Narrow guide operation part 51 Operation groove
58 horizontal axis (third axis)
59 spring (second spring)
60 upper and lower wire cable
61 Vertical control lever

Claims (3)

A traveling device (2) is provided below the machine body frame (1), and a threshing device (3) provided with a cereal supply / conveyance device (19) is provided on the upper side of the machine body frame (1). A grain tank (5) is provided on the other side of the tank, a control part (7) is provided on the front side of the grain tank (5), a cutting part (4) is provided in front of the fuselage frame (1), and the cutting part ( 4) A narrow guide (20) for weeding the uncut grain cereal is provided from the side of the threshing device (3) to the side of the threshing device (3), and the narrow guide (20) is connected to the front narrow guide (21) and the rear narrow guide (21). and formed by dividing into 22), the front mounting portion of the front end of the front narrow guide (21) to (35), reaper (4) min grass apparatus front (8) min grass frame supporting the (23) front and rear movable and the member (36) before the side guide which is provided on the pivotally mounted, the rear Side mounting portion after the rear end of the narrow guide (22) (45) is mounted movably back and forth to the side guide member (46) after providing the body frame (1), the rear end of the front-side narrow guide (21) mounting a front end portion of the parts and the rear narrow guide (22) bendably, ordinate turn the tip of the support arm (38) to the front portion of the rear narrow guide (2 2) in the first shaft (39) movably attachable only, mounted for vertical axis rotation of the base of the support arm (38) in the second axis (41) at the distal end portion of the mounting member (40), the machine frame base portion of the mounting member (40) It is attached to the front horizontal frame (32) of (1) so as to be rotatable around a third axis (58) in the front-rear direction, and the support arm (38) is stored in the narrow guide (20). Attach the first spring (42) that constantly biases in the direction, and the fuselage frame on the narrow guide (20) When a load is applied to the side (1), the front end of the front narrow guide (21) and the rear end of the rear narrow guide (22) are connected to the front guide member (36) and the rear guide member (46). With respect to the third shaft (58), the mounting member (40) for supporting the support arm (38) is rotated downward about the third shaft (58). mounting a second spring (59) which constantly urge, narrow guides the other end a mounting Rutotomoni the wire cable of said support arm (38) to a wire cable (43) (43) from said steering unit (7) (20) is connected to a narrow guide operating member (26) for overhanging and retracting, and one end of the upper and lower wire cable (60) is attached to the mounting member (40) and the other end of the upper and lower wire cable (60) is attached. the Combine, characterized in that connected to the upper and lower operating levers for vertical operation of narrow guide provided on the vertical portion (7) (20) (61). The wire cable (43), the upper and lower wire cables (60), the first spring (42) and the second spring (59) are arranged below the inlet funnel (34) provided on the front side of the threshing device (3). The combine according to claim 1. A narrow guide operation portion (50) having an operation groove for rotating and guiding the narrow guide operation member (26) in the front-rear direction is provided at a position on the narrow guide (20) side of the control portion (7). The combine according to claim 1 or claim 2.

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