JP2013027367A - Pick-up reel for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pick-up reel for a combine harvester which preferably rakes crops to be harvested while evading deformation or damage of tines.SOLUTION: The tines 62 are mounted to a tine supporting member 61 horizontally supported between a right and left reel frames, in parallel with each other at longitudinal intervals, and the tine includes: a mounted portion 62a mounted to the tine supporting member 61 with a screw member 73; a rod-shaped hanging portion 62c hanging downward; and a coil spring portion 62b having a helical shape about a horizontal axis, positioned between the mounted portion 62a and the rod-shaped hanging portion 62c, and elastically deformed to absorb the bending deflection of the rod-shaped hanging portion 62c. Each of the tines 62 on both right and left end sides, is provided such that the rod-shaped hanging portion 62c is positioned on a side near the reel frame and the mounted portion 62a is positioned on a side away from the reel frame.

Description

  The present invention is configured by mounting a plurality of tines in parallel at intervals in the longitudinal direction on a tine support member that is provided in a state of being positioned in front of the combine main body and horizontally supported across the left and right reel frames. It relates to the combine take-in reel.

  Conventionally, this type of combine scraping reel has been configured as follows. That is, the tine is integrally formed with a mounted portion for the tine support member and a hanging rod-like portion that hangs downward to scrape a crop to be harvested such as rice, wheat, and soybean, There has been a configuration in which the attached portion of the tine is configured to be fixed to the tine support member with a screw member (for example, see Patent Document 1).

JP-A-2005-211010

  According to the conventional combine take-up reel described above, when a displacement occurs in the hanging bar-like portion on the tine tip side due to the take-up reaction force accompanying the rotational drive of the take-up reel, a large bending moment acts on the base end side. The bending stress at that time will be concentrated on the mounting portion integrally formed with the hanging rod-shaped portion, and the tine may be deformed or damaged by such repeated bending stress. .

Therefore, as an improved structure for avoiding early deformation or breakage due to repeated application of such bending stress, a drooping reaction force accompanying the rotation drive of the take-up reel causes the drooping rod-like portion on the tine tip side to A configuration has been conceived in which a helical coil spring portion is provided adjacent to the attached portion around a horizontal axis that allows the displacement by elastic deformation even if the displacement occurs.
With such a configuration, since the displacement of the hanging rod-like portion is allowed by elastic deformation, bending stress is not repeatedly applied to the mounted portion, and it is possible to avoid the possibility that the tine is deformed or damaged early. It will be something.

  However, in the case of adopting such an improved configuration in which the helical coil spring portion is provided adjacent to the attached portion, the hanging rod-like portion is covered via the coil spring portion in the left-right direction, that is, the longitudinal direction of the tine support member. It will be provided in a state of being located on the side opposite to the attachment portion, and the position of the hanging rod-like portion will be shifted along the longitudinal direction of the tine support member with respect to the attachment portion.

  As a result, at least one of the left and right ends of the take-up reel where the left and right reel frames are present, a wide gap is formed between the most drooping rod-like portion and the reel frame, There was a risk that the crops to be harvested could not be scraped well at the left and right ends.

  The object of the present invention is to prevent the tine from being deformed or damaged at an early stage, and to make it possible to satisfactorily scrape a crop to be cut at the left and right ends. The point is to provide a combined take-up reel.

The take-in reel of the combine according to the present invention is provided in a state of being positioned in front of the combine main body, and a plurality of tine support members horizontally supported across the left and right reel frames are spaced apart in the longitudinal direction. The tine is configured in parallel, and the first characteristic configuration is
The tine is attached to the tine support member by a screw member, a hanging rod-like portion that hangs downward, and the hanging rod-like portion located between the to-be-attached portion and the hanging rod-like portion And a helical coil spring portion around the horizontal axis that can absorb the bending displacement by elastic deformation,
Each of the left and right tines adjacent to the left and right reel frames is provided in such a form that the hanging rod-like portion is located on the side close to the reel frame and the attached portion is located on the side far from the reel frame. There is in point.

  According to the first characteristic configuration, the tine is located between the attached portion that is attached to the tine support member by the screw member, the hanging rod-like portion that hangs downward, and the attached portion and the hanging rod-like portion. Since it is configured with a helical coil spring around the horizontal axis that can absorb the bending displacement of the hanging rod-like portion by elastic deformation, the drooping on the tip side of the tine is caused by the scratching reaction force that accompanies the rotation drive of the scraping reel When a displacement occurs in the rod-shaped part, the displacement can be absorbed by elastic deformation by the helical coil spring part, so that the disadvantage that tine deforms or breaks early due to repeated bending stress. Can be avoided.

  Each of the left and right tines adjacent to the left and right reel frames is provided in such a form that the hanging rod-like portion is located on the side close to the reel frame and the attached portion is located on the side far from the reel frame. In the left and right ends of the take-up reel, the gap between the most drooping rod-like portion and the reel frame is narrowed, and the crop to be reaped is scraped well at the left and right ends of the take-up reel. Is possible.

  Therefore, it is possible to provide a combine reeling reel that can favorably scrape a crop to be harvested at the left and right ends while avoiding the disadvantage that tine is deformed or broken early. It came to.

According to a second characteristic configuration of the present invention, the plurality of tines includes a form in which the hanging rod-like portion is located on one side in the longitudinal direction and the attached portion is located on the other side in the longitudinal direction. And the hanging rod-like portion is located on the other side in the longitudinal direction and the attached portion is located on the one side in the longitudinal direction, and the coil spring portion is formed in a spiral shape opposite to the first tine. And a second tine having the form to be provided,
A tine adjacent to the reel frame located on one side in the longitudinal direction is constituted by the first tine, and a tine adjacent to the reel frame located on the other side in the longitudinal direction is constituted by the second tine. It is in the point.

  According to the second characteristic configuration, the tine adjacent to the reel frame located on one side in the longitudinal direction is constituted by the first tine, and the first tine is located on one side in the longitudinal direction. Since the hanging rod-like portion is located and the attached portion is located on the other side in the longitudinal direction, the reel frame located on the one side in the longitudinal direction and the hanging rod-like portion are arranged close to each other.

  Further, the tine adjacent to the reel frame located on the other side in the longitudinal direction is constituted by the second tine, and the second tine has a hanging rod-like portion located on the other side in the longitudinal direction. And since a to-be-attached part is located in the longitudinal direction one side, the reel frame located in the longitudinal direction other side and the drooping rod-shaped part will be deployed.

  And since the coil spring part of the 2nd tine is formed in the spiral shape opposite to the 1st tine, the attached part of the 1st tine and the attached part of the 2nd tine Are attached to the tine support member with the screw member from the same direction, and the reel frame and the hanging bar-like portion can be arranged in the proximity of each other. In this way, all the tines can be attached to the tine support member with the screw members from the same direction, and the tine attaching operation can be easily performed.

  According to a third feature of the present invention, a boarding operation unit is provided at a position offset to one side in the longitudinal direction in the front portion of the combine body, and one of the plurality of tines is located at one end in the longitudinal direction. One or several tines are composed of the first tine, and other tines are composed of the second tine.

  According to the third characteristic configuration, since the boarding operation part is provided at a position offset to one side in the longitudinal direction in the front part of the combine main body, the tine located at the one end part in the longitudinal direction among the plurality of tines It becomes easy to see from the driver in the driving section. As a result of the driving operation being performed so that a large reaction force is not applied as much as possible, the tine that is easily visible from the driver is less likely to be deformed or damaged compared to other tines. .

  Therefore, one or several tines located at one end in the longitudinal direction are constituted by the first tine, and the other tines are constituted by the second tine, so that a small number of tines can be obtained. The tine of 1 is less likely to be deformed or damaged and requires less trouble for repair and replacement.

  As a result, it is necessary to prepare a large number of spare tines for repair for the second tine having a large number, but the first tine having a small number is less likely to be deformed or damaged, so that it can be repaired and replaced. Since there is less work, there is no need to prepare a large number of spare tines for repair. That is, it is not necessary to prepare a large number of spare tines for each of the first and second tines, and wasteful expenses can be suppressed as much, and costs can be reduced.

  According to a fourth characteristic configuration of the present invention, the tine is formed by continuously connecting each of the attached portion, the coil spring portion, and the hanging rod-like portion with a metal spring material. It is in.

  According to the fourth characteristic configuration, each of the attached portion, the coil spring portion, and the hanging rod-like portion is formed in a state of being continuously connected with the metal spring material, so that the structure of the tine is simplified. Cost reduction can be achieved.

It is a whole side view of a combine. It is a whole top view of a combine. It is a partial vertical side view of a cutting and conveying apparatus. It is a vertical front view of a dust removal apparatus. It is a perspective view of a suction hood part. It is a vertical rear view of a side cover. It is a perspective view of a lower front side cover. It is a perspective view of a lower rear side cover. It is a side view of a cutting process part. It is a cross-sectional top view which shows the connection state of a transmission part cover. It is a disassembled perspective view which shows the connection state of a transmission part cover. It is a front view of a take-in reel. It is a vertical side view of a tine attachment part. It is a front view of a tine attachment part.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a combine take-in reel according to the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the combine according to the present invention is for harvesting crops such as rice and wheat, and is harvested and transported to the front of the combine body A by a hydraulic cylinder CY so as to be driven up and down. The apparatus B is connected.

  The combine main body A is configured to run freely by a pair of left and right crawler travel devices 1 and 1 and is supported by the body frame 2. , A threshing device 5 that performs a threshing process on the harvested crop, and a grain tank 6 that stores the grain obtained by the threshing process.

  As shown in FIG. 2, the boarding operation part 3 is provided in the front part of the combine main body A in the position which shifted | deviated to the aircraft right side (equivalent to the one longitudinal direction side of the tine support member 61 mentioned later) by the advancing direction view. . And as shown in FIG. 1, the drive part 4 is provided in the state located under the boarding driving | operation part 3. As shown in FIG. Further, the threshing device 5 is provided on the left side of the machine body as viewed in the traveling direction at the rear of the combine body A, and the grain tank 6 is provided on the right side of the threshing device 5 at the rear of the machine body. A grain discharging auger 7 is provided for discharging the existing grain to the outside of the machine body.

  As shown in FIG. 1, on the left side surface of the threshing device 5, a sheet metal opening / closing door 8 is provided on the upper rear side so as to be openable and closable around the longitudinal axis Y at the rear portion. It is configured so that maintenance can be performed. The opening / closing door 8 is provided with an elastic engagement type opening / closing tool 9 that can be locked in a closed state by an elastic engagement action and can be unlocked by a pulling operation.

  A front side cover 10 made of resin is detachably provided on the front side of the open / close door 8, and a lower front side cover 11 made of resin and a lower rear side cover made of resin are provided on the lower side. 12 is detachably provided. The lower front side cover 11 and the lower rear side cover 12 are supported by the lateral side wall 13 of the threshing device 5 through desorption means provided across the covers 11, 12 and the lateral side wall 13 of the threshing device 5. ing.

That is, as shown in FIGS. 6, 7, and 8, the attaching and detaching means of the covers 11 and 12 includes an engaged member 14 formed of a U-shaped round bar and a hook-like engagement that engages with the engaged member 14. The engaging means 16 is composed of a member 15, the engaged member 17 is formed by a U-shaped round bar, and the locking means 19 is formed by an elastic engagement type opening / closing tool 18 that is hooked on the engaged member 17.
As shown in FIG. 6, the covers 11 and 12 in the mounted state swing to the detaching side when the lower rear surface of the operating portion of the opening / closing tool 18 is pulled forward, and the lock means 19 is unlocked. When the covers 11 and 12 are pulled upward, the engagement member 15 is disengaged from the lower engaged member 14, and the covers 11 and 12 can be detached from the lateral side wall 13.

  Since the covers 11 and 12 on the left side surface of the threshing device 5 are made of synthetic resin in this way, the lower rear side cover is used to avoid damage due to contact with external objects such as straw. 12 is provided with a protective member 20 in a state of extending from the body frame 2 at the rear end portion of the body on the lower side.

  The harvesting and transporting device B harvests a crop with a predetermined trim width and feeds the harvested crop to the intermediate portion in the horizontal direction of the machine body, and combines the crops merged in the harvest processing unit 21 with the harvesting unit 21. And a rectangular tube-shaped feeder 22 that is transported backward toward the threshing device 5 provided in the above.

  Then, as shown in FIG. 2, the cutting processing unit 21 is disposed on the front side of the boarding operation unit 3, and the feeder 22 is disposed on the left side of the body as viewed in the traveling direction of the boarding operation unit 3. .

  As shown in FIGS. 1, 3, and 4, the feeder 22 is configured by installing a scraping conveyor 24 inside a conveyance case 23 formed in a rectangular tube shape. The scraping conveyor 24 is configured by horizontally connecting a conveying bar 26 across a pair of left and right chains 25 that are wound in a vertical direction, and the crop that is laterally fed by the cutting processing unit 21 is transferred to the conveying case 23. It is configured such that it is scraped and conveyed along the bottom surface and conveyed to be put into the threshing device 5.

  As shown in FIGS. 1, 2, and 3, the cutting processing unit 21 includes a cutting unit frame 27 formed by connecting square pipes and L-shaped members, a rear side portion 28, a transport deck 29, and a pair of left and right pairs. It has a frame structure in which the side plates 30 and 30 are attached and fixed. A divider 31 is provided at the front of the left and right side plates 30, 30 to divide the crop into a target for cutting and a target for non-cutting, and cuts the stock of the crop along the front end of the transport deck 29. 32 is provided, and an auger 33 for laterally feeding the harvested crop to the middle portion in the cutting width direction is installed over the left and right side plates 30 and 30. Further, a pair of left and right support arms 34, 34 extending forward from the upper part of the base end side of the cutting unit frame 27 is supported to be freely driven and rotated, and a crop to be harvested located in front of the feeder 22 is scraped. A take-up reel 35 is provided.

  As shown in FIG. 1, the take-up reel 35 is provided in a state in which the position of the front end portion on the front side of the fuselage protrudes further to the front side of the front portion of the fuselage than the front end portion of the fuselage 31. The crop can be scraped well.

  As shown in FIG. 9, a belt-type transmission mechanism (not shown) for transmitting the power from the driving unit 4 to the auger 33 and the mowing device 32 is provided on the right side of the machine body of the mowing processing unit 21. A resin transmission cover 36 is provided to cover the direction. The transmission portion cover 36 is configured such that a plurality of surrounding portions are fastened and fixed to the right side plate 30 with bolts.

  As shown in FIGS. 9, 10, and 11, the front end side of the transmission cover 36 is fastened and fixed with bolts 38 from the outside in a state where it contacts the inside of a mounting plate 37 that extends from the side plate 30 that supports the divider 31. The nut 39 is attached to the transmission portion 36 in an embedded state at the mounting location. Further, in the mounting plate 37, an insertion hole 40 is formed as a long hole along the front-rear direction in order to absorb a change in the mounting position due to an assembly error.

Since the insertion hole 40 for attachment is a long hole in this way, if the bolt 38 is tightened by inserting only into the insertion hole 40, the embedded nut 39 may enter the inside of the insertion hole 40. In order to hold the position of the nut 39, a U-shaped relay plate 42 in which a circular bolt insertion hole 41 is formed is provided across the mounting plate 37, and the bolt 38 is inserted and tightened.
Although not shown, the other bolt mounting locations are configured to be fastened and fixed using welding nuts (not shown) provided on the side plates.

  As shown in FIGS. 1, 2, and 3, a dust discharge device 43 is provided at the transport start end of the feeder 22, and the dust discharge device 43 is configured to remove dust such as dust that has entered the transport case 23 together with the harvested crop. Dust generated in front of the feeder 22 is sucked through the transport case 23 and discharged to a place away from the boarding operation unit 3.

  The dust exhaust device 43 includes a dust exhaust hood 44 provided outside the transport case 23 and an axial flow type rotary fan 45 provided inside the dust exhaust hood 44. The dust hood 44 is a suction hood portion 46 located on the outer surface side of the top plate portion 23 </ b> A of the transport case 23, and a discharge located over the lateral side portion of the suction hood portion 46 and the lateral outer surface side of the transport case 23. A hood portion 47 is provided.

  As shown in FIG. 4, the suction hood portion 46 is connected to the top plate portion 23 </ b> A of the transport case 23 by an attachment flange 48 provided at the lower end portion thereof. A dust flow path is formed from a dust suction port 49 provided in the suction hood portion 46 to a discharge port 50 formed at the lower end of the discharge hood portion 47. The suction hood portion 46 and the discharge hood portion 47 are made of a synthetic resin material molded into a predetermined shape. The connection flange 46 f and the upper end side of the discharge hood portion 47 are formed integrally with the lateral end portion of the suction hood portion 46. A connecting flange 47f formed integrally with the lateral end is screw-connected.

  As shown in FIG. 5, the periphery 46 a of the rotary fan 45 in the suction hood portion 46 is formed in an arc shape along the outer periphery of the rotary fan 45 and is configured to function as a fan shroud of the rotary fan 45. In addition, a cylindrical work opening 53 used for attaching / detaching the driving motor 52 of the rotary fan 45 is formed in the inclined face portion 51 in an oblique posture, and a peripheral edge portion inside the work opening 53 supports the driving motor 52. It is comprised as a support part. The suction hood portion 46 is formed with a plurality of reinforcing ribs 54 and 55 formed of recessed grooves along the vertical direction on the inclined surface portion 51 that is a position that does not impede the suction action, thereby increasing the rigidity.

  In addition, the dust discharge device 43 is configured such that the rotary fan 45 is operated to perform the dust discharge operation only during the cutting work in which the cutting clutch is operated and the crop is cut and conveyed toward the threshing device 5. Has been.

Although the transmission system will not be described in detail, the power of the driving section 4 is configured to be intermittently transmitted to the cutting and conveying device B via a belt tension type cutting clutch (not shown), as shown in FIG. Further, a cutting clutch lever 57 for turning on and off the cutting clutch is provided so as to be rotatable around the horizontal axis P1 between the clutch cutting position and the clutch engaging position.
The combine is also provided with a reverse drive mechanism (not shown) for temporarily rotating the harvesting and conveying apparatus B in the reverse rotation direction in order to eliminate the clogging of the grain in the harvesting and conveying apparatus B. The drive mechanism can be rotated in the reverse rotation direction by operating a dedicated reverse operation tool with the cutting clutch for cutting work switched to the disengaged state.

  As shown in FIG. 4, the lever position detection switch 58 that is turned off when the cutting clutch lever 57 is in the clutch disengaged position and turned on when the cutting clutch lever 57 is in the clutch engaged position is the cutting clutch lever 57. If the lever position detection switch 58 is off, the drive motor 52 of the dust removal device 43 is inoperative. If the lever position detection switch 58 is on, the drive motor 52 of the dust removal device 43 is deactivated. The lever position detection switch 58 and the drive motor 52 of the dust removal device 43 are electrically connected so that the switch is switched to the operating state.

  With this configuration, dust generated in the feeder 22 during the cutting operation can be discharged to the outside during the cutting operation, and when operating the reverse drive mechanism or during the non-cutting operation, the dust is discharged. The dust device 43 does not operate. For example, when the cutting and conveying device B is operated in reverse, it is possible to avoid disadvantages such as discharging a large amount of clogged crops from the dust discharge device 43 to the outside.

Next, the take-up reel 35 will be described.
As shown in FIGS. 1 and 2, the take-up reel 35 has a pentagonal shape in a side view so as to be integrally rotatable with the left and right ends of a drive shaft 59 rotatably supported at the distal ends of a pair of support arms 34, 34. A pair of left and right reel frames 60 are provided. Then, as shown in FIG. 12, tine support members 61 are provided in a state of being laid over the pair of left and right reel frames 60, 60 and arranged one by one on the five tops, and each tine support is provided. A plurality of tines 62 are attached to the member 61 in a state of being arranged along the longitudinal direction.

  Each reel frame 60 is wound around five arm 60b made of sheet metal provided in the reel frame main body 60a, a resin block body 60c provided at the tip of each arm 60b, and the five block bodies 60c. And an annular band plate 60d connected to the arm 60b with a fastening bolt with the block body 60c. Each block body 60c constitutes an attachment portion to which the tine support member 61 is rotatably attached. The annular band plate 60d is constituted by a divided band plate material divided at each arm 60b.

And the tine 62 attached to each tine support member 61 has a known configuration for maintaining the posture so that the tine 62 extends downward from the tine support member 61 regardless of the rotation of the take-in reel 35. An attitude holding mechanism 63 is provided.
The posture holding mechanism 63 will be briefly described. The posture holding mechanism 63 includes a pentagonal auxiliary rotating body 64 provided on one lateral outer side of the take-up reel 35 as viewed from the side of the machine body. Accordingly, the auxiliary rotator 64 is rotated around the axis P3 different from the reel rotation axis P2 by the driving force transmitted from the scraping reel 35 via the link 65, and each tine support member 61 is rotated by the link 65. Then, each tine support member 61 is rotated with respect to the reel frame 60, and the tine 62 of each tine support member 61 extends downward from the tine support member 61 regardless of the rotation of the take-in reel 35. Configured to hold.

  As shown in FIG. 1, the take-up reel 35 has a pair of support arms 34, 34 around the axis P <b> 4 of the connection shaft 67 by a hydraulic cylinder 66 connected to the pair of support arms 34, 34 and the cutting part frame 27. By moving up and down with respect to the reaper part frame 27, it is configured to freely move up and down between a lowered working state and a raised non-working state.

When the pair of left and right support arms 34 and 34 are lowered and the lower end side of the take-up reel 35 is positioned near the ground G, the take-up reel 35 is in a lower position operation state. Then, by the rotation of the drive shaft 59, the take-up reel 35 rotates around the reel rotation axis P2, and the tine 62 of each tine support member 61 rotates around the reel rotation axis P2.
Each tine 62 rotates in a state in which the posture extending downward from the tine support member 61 is held by the action of the posture holding mechanism 63, and scrapes and supplies the tine 62 toward the reaping device 32 while being locked to the crop.

As shown in FIGS. 13 and 14, the tine support member 61 integrally fixes a channel member 61B with a groove opening facing the front of the combine on the lower surface of a tine support bar body 61A made of metal pipe. Configured.
The channel member 61B includes an upper horizontal surface portion 70, a vertical surface portion 71, and a lower horizontal surface portion 72, and the tine support bar main body is welded along the upper horizontal surface portion 70 along the tine support bar main body 61A. It is integrally connected to 61A.
Further, a plurality of insertion holes 71a for attaching tine are formed in the vertical surface portion 71 at intervals in the longitudinal direction, and a hanging rod-like portion 62c of a tine 62 described later is inserted into the lower horizontal surface portion 72 so that the tine 62 is inserted. Slits 72a that prevent the lateral movement of the tine are formed corresponding to the respective tine attachment positions.

The tine 62 is made of a metal spring material, and a to-be-attached portion 62a to be attached to the vertical surface portion 71 of the channel member 61B by a screw member 73 is provided at the upper end portion, and a spiral coil spring portion 62b around the horizontal axis. Is provided in a state of being connected to the attached portion 62a, and a hanging rod-like portion 62c is provided in a state of being connected to the coil spring portion 62b. The attached portion 62a is formed in a ring shape, and is configured to be able to be fixed to the vertical surface portion 71 by inserting a screw member 73 having a flat washer 73a into the ring hollow portion.
Further, the coil spring portion 62b is formed in a double spiral shape, and the bending displacement of the drooping rod-like portion 62c due to the reaction force of the crop or the ground G accompanying the rotational driving of the take-up reel 35 is reduced in diameter. It is configured to be allowed by elastic deformation in the direction (or diameter expansion direction).

  That is, the tine 62 is configured by forming each of the attached portion 62a, the coil spring portion 62b, and the hanging rod-like portion 62c in a state of being continuously connected by the metal spring material.

  The tine head height dimension h from the upper end of the mounted part 62a to the lowest spiral part of the coil spring part 62b is substantially the same as the distance between the upper horizontal plane part 70 and the lower horizontal plane part 72 of the channel member 61B. The upper portion of the tine 62 can be stored in the groove of the channel member 61B without creating an extra space.

  Further, with the mounting structure as described above, when a thrust force from below the tine 62 acts, both the fixing force by the screw member 73 and the supporting force of the upper horizontal surface portion 70 with which the mounted portion 62a abuts are both. By acting, the attachment state of the tine 62 can be stably maintained.

  Further, the tine 62 is configured such that a part of the spiral of the coil spring portion 62b protrudes outward from a straight line connecting the outer edge portions of the upper horizontal surface portion 70 and the lower horizontal surface portion 72 of the channel member 61B ( For example, when the tine 62 is attached to or detached from the channel member 61B in the maintenance work (inspection, repair, etc.) of the tine 62, this protrusion can be picked and operated with a finger, and the maintenance work can be performed efficiently. .

  Then, as shown in FIG. 12, the left and right tines 62 adjacent to the left and right reel frames 60, 60 are respectively located on the side close to the reel frames 60, 60. The mounted portion 62a is provided on the far side.

  Further, as the plurality of tines 62, a first tine T1 having a configuration in which a hanging rod-like portion 62c is located on one side in the longitudinal direction of the tine support member 61 and a mounted portion 62a is located on the other side in the longitudinal direction; The hanging rod-like portion 62c is located on the other side in the longitudinal direction, the attached portion 62a is located on the one side in the longitudinal direction, and the coil spring portion 62b is formed in a spiral shape opposite to that of the first tine T1. And a tine 62 adjacent to the reel frame 60 located on one side in the longitudinal direction is constituted by the first tine T1 and is located on the other side in the longitudinal direction. A tine 62 adjacent to the reel frame 60 is constituted by the second tine T2.

  FIG. 12 is a front view of the take-up reel 35, and is a view of the take-up reel 35 as viewed from the direction opposite to the moving direction of the machine body. The two tines 62 located at the end on the right side (left side in FIG. 12) in the traveling direction as the side are the first tine T1, and the other tines 62 are the second tine T2. Configured.

  That is, the first tine T1 has a configuration in which the hanging rod-shaped portion 62c is located on the right side (left side in FIG. 12) and the attached portion 62a is located on the left side (right side in FIG. 12). The tine T2 has a configuration in which a hanging rod-like portion 62c is located on the left side (right side in FIG. 12) and a mounted portion 62a is located on the right side (left side in FIG. 12). And as shown in FIG. 14, 2nd tine T2 becomes a form by which the coil spring part 62b is formed in the spiral shape of the direction opposite to 1st tine T1.

  With this configuration, the gap between the hanging rod-like portion 62c of the tine 62 on the endmost side and the reel frame 60 is narrowed at the left and right end portions of the take-up reel 35, and the left and right sides of the take-up reel 35 are reduced. It is possible to satisfactorily scrape the crop to be cut at the end.

  Further, as described above, the boarding operation unit 3 is provided at the front portion of the combine main body A at a position shifted to the right side of the body as viewed in the traveling direction, so that the first operation state provided at the end on the right side of the body is provided. The tine T1 is easily visible from the driver in the boarding operation unit 3.

  Furthermore, according to the tine mounting structure having the above configuration, the displacement acting on the tip of the tine 62 can be allowed by the elastic deformation of the coil spring portion 62b, and the plastic deformation or fatigue failure of the tine 62 is hardly caused. Since it is possible to improve the durability of the tine 62 and each tine 62 can be replaced individually, it is possible to reduce the time required for replacing the tine 62. Moreover, since the shape of the tine 62 is also a simple shape that only bends the metal spring material, the cost of the tine 62 can be reduced.

[Another embodiment]
(1) In the above embodiment, of the plurality of tines 62, two tines 62 located at one end in the longitudinal direction are configured by the first tine T1, and the other tines 62 are Although what is comprised by 2nd tine T2 was shown, the number of 1st tine T1 is not limited to 2, One may be sufficient and 3 or more may be provided.

(2) In the above-described embodiment, as the plurality of tines 62, the first tines T1 and the coil spring portions 62b are formed in a spiral shape opposite to the first tines T1. However, instead of such a configuration, for example, only the first tine T1 or the second tine T2 is used, and the tine support member 61 is provided. It is good also as a structure which switches an attachment position to the state attached from a body front side, and the state attached from a body back surface.
With this configuration, the hanging rod-like portion 62c is located on the side of the tine 62 adjacent to the left and right reel frames 60 on the side close to the reel frame 60, and the side farther from the reel frame 60. Can be provided in a form in which the attached portion 62a is positioned.

(3) In the said embodiment, the said tine 62 shows what forms each of the said to-be-attached part 62a, the said coil spring part 62b, and the said drooping rod-shaped part 62c in the state connected in series by a metal spring material. However, it is good also as a structure which comprises each of the said to-be-attached part 62a, the said coiled spring part 62b, and the said drooping rod-shaped part 62c, and it connects with them separately.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a combine take-up reel configured by mounting a plurality of tines in parallel on a tine support member horizontally supported across the left and right reel frames at intervals in the longitudinal direction.

DESCRIPTION OF SYMBOLS 3 Boarding operation part 60,60 Reel frame 61 Tine support member 62 Tine 62a Mounted part 62b Coil spring part 62c Hanging rod-shaped part 73 Screw member A Combine main body T1 1st tine T2 2nd tine

Claims (4)

A combine which is provided in a state of being positioned in front of the combine main body, and is configured by mounting a plurality of tines in parallel at intervals in the longitudinal direction on a tine support member horizontally supported across the left and right reel frames. A scraping reel of
The tine is attached to the tine support member by a screw member, a hanging rod-like portion that hangs downward, and the hanging rod-like portion located between the to-be-attached portion and the hanging rod-like portion And a helical coil spring portion around the horizontal axis that can absorb the bending displacement by elastic deformation,
Each of the left and right tines adjacent to the left and right reel frames is provided in such a form that the hanging rod-like portion is located on the side close to the reel frame and the attached portion is located on the side far from the reel frame. The combine take-in reel. As the plurality of tines, a first tine having a configuration in which the hanging rod-like portion is located on one side in the longitudinal direction and the attached portion is located on the other side in the longitudinal direction, and the tine on the other side in the longitudinal direction A second rod having a form in which a hanging rod-like portion is located and the attached portion is located on one side in the longitudinal direction and the coil spring portion is formed in a spiral shape opposite to the first tine; With Tyne,
A tine adjacent to the reel frame located on one side in the longitudinal direction is constituted by the first tine, and a tine adjacent to the reel frame located on the other side in the longitudinal direction is constituted by the second tine. The combine take-up reel according to claim 1. A boarding operation part is provided at a position offset to one side in the longitudinal direction in the front part of the combine body,
Among the plurality of tines, one or several tines located at one end in the longitudinal direction are constituted by the first tine, and the other tines are constituted by the second tine. The combine take-up reel according to claim 2.   The tine is formed by forming each of the attached portion, the coil spring portion, and the hanging rod-like portion in a state of being continuously connected with a metal spring material. Combine harvester reel as described in 1.

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